auto import from //depot/cupcake/@135843
diff --git a/ABOUT-NLS b/ABOUT-NLS
new file mode 100644
index 0000000..47d5e39
--- /dev/null
+++ b/ABOUT-NLS
@@ -0,0 +1,625 @@
+Notes on the Free Translation Project
+*************************************
+
+ Free software is going international! The Free Translation Project
+is a way to get maintainers of free software, translators, and users all
+together, so that will gradually become able to speak many languages.
+A few packages already provide translations for their messages.
+
+ If you found this `ABOUT-NLS' file inside a distribution, you may
+assume that the distributed package does use GNU `gettext' internally,
+itself available at your nearest GNU archive site. But you do _not_
+need to install GNU `gettext' prior to configuring, installing or using
+this package with messages translated.
+
+ Installers will find here some useful hints. These notes also
+explain how users should proceed for getting the programs to use the
+available translations. They tell how people wanting to contribute and
+work at translations should contact the appropriate team.
+
+ When reporting bugs in the `intl/' directory or bugs which may be
+related to internationalization, you should tell about the version of
+`gettext' which is used. The information can be found in the
+`intl/VERSION' file, in internationalized packages.
+
+Quick configuration advice
+==========================
+
+ If you want to exploit the full power of internationalization, you
+should configure it using
+
+ ./configure --with-included-gettext
+
+to force usage of internationalizing routines provided within this
+package, despite the existence of internationalizing capabilities in the
+operating system where this package is being installed. So far, only
+the `gettext' implementation in the GNU C library version 2 provides as
+many features (such as locale alias, message inheritance, automatic
+charset conversion or plural form handling) as the implementation here.
+It is also not possible to offer this additional functionality on top
+of a `catgets' implementation. Future versions of GNU `gettext' will
+very likely convey even more functionality. So it might be a good idea
+to change to GNU `gettext' as soon as possible.
+
+ So you need _not_ provide this option if you are using GNU libc 2 or
+you have installed a recent copy of the GNU gettext package with the
+included `libintl'.
+
+INSTALL Matters
+===============
+
+ Some packages are "localizable" when properly installed; the
+programs they contain can be made to speak your own native language.
+Most such packages use GNU `gettext'. Other packages have their own
+ways to internationalization, predating GNU `gettext'.
+
+ By default, this package will be installed to allow translation of
+messages. It will automatically detect whether the system already
+provides the GNU `gettext' functions. If not, the GNU `gettext' own
+library will be used. This library is wholly contained within this
+package, usually in the `intl/' subdirectory, so prior installation of
+the GNU `gettext' package is _not_ required. Installers may use
+special options at configuration time for changing the default
+behaviour. The commands:
+
+ ./configure --with-included-gettext
+ ./configure --disable-nls
+
+will respectively bypass any pre-existing `gettext' to use the
+internationalizing routines provided within this package, or else,
+_totally_ disable translation of messages.
+
+ When you already have GNU `gettext' installed on your system and run
+configure without an option for your new package, `configure' will
+probably detect the previously built and installed `libintl.a' file and
+will decide to use this. This might be not what is desirable. You
+should use the more recent version of the GNU `gettext' library. I.e.
+if the file `intl/VERSION' shows that the library which comes with this
+package is more recent, you should use
+
+ ./configure --with-included-gettext
+
+to prevent auto-detection.
+
+ The configuration process will not test for the `catgets' function
+and therefore it will not be used. The reason is that even an
+emulation of `gettext' on top of `catgets' could not provide all the
+extensions of the GNU `gettext' library.
+
+ Internationalized packages have usually many `po/LL.po' files, where
+LL gives an ISO 639 two-letter code identifying the language. Unless
+translations have been forbidden at `configure' time by using the
+`--disable-nls' switch, all available translations are installed
+together with the package. However, the environment variable `LINGUAS'
+may be set, prior to configuration, to limit the installed set.
+`LINGUAS' should then contain a space separated list of two-letter
+codes, stating which languages are allowed.
+
+Using This Package
+==================
+
+ As a user, if your language has been installed for this package, you
+only have to set the `LANG' environment variable to the appropriate
+`LL_CC' combination. Here `LL' is an ISO 639 two-letter language code,
+and `CC' is an ISO 3166 two-letter country code. For example, let's
+suppose that you speak German and live in Germany. At the shell
+prompt, merely execute `setenv LANG de_DE' (in `csh'),
+`export LANG; LANG=de_DE' (in `sh') or `export LANG=de_DE' (in `bash').
+This can be done from your `.login' or `.profile' file, once and for
+all.
+
+ You might think that the country code specification is redundant.
+But in fact, some languages have dialects in different countries. For
+example, `de_AT' is used for Austria, and `pt_BR' for Brazil. The
+country code serves to distinguish the dialects.
+
+ The locale naming convention of `LL_CC', with `LL' denoting the
+language and `CC' denoting the country, is the one use on systems based
+on GNU libc. On other systems, some variations of this scheme are
+used, such as `LL' or `LL_CC.ENCODING'. You can get the list of
+locales supported by your system for your country by running the command
+`locale -a | grep '^LL''.
+
+ Not all programs have translations for all languages. By default, an
+English message is shown in place of a nonexistent translation. If you
+understand other languages, you can set up a priority list of languages.
+This is done through a different environment variable, called
+`LANGUAGE'. GNU `gettext' gives preference to `LANGUAGE' over `LANG'
+for the purpose of message handling, but you still need to have `LANG'
+set to the primary language; this is required by other parts of the
+system libraries. For example, some Swedish users who would rather
+read translations in German than English for when Swedish is not
+available, set `LANGUAGE' to `sv:de' while leaving `LANG' to `sv_SE'.
+
+ In the `LANGUAGE' environment variable, but not in the `LANG'
+environment variable, `LL_CC' combinations can be abbreviated as `LL'
+to denote the language's main dialect. For example, `de' is equivalent
+to `de_DE' (German as spoken in Germany), and `pt' to `pt_PT'
+(Portuguese as spoken in Portugal) in this context.
+
+Translating Teams
+=================
+
+ For the Free Translation Project to be a success, we need interested
+people who like their own language and write it well, and who are also
+able to synergize with other translators speaking the same language.
+Each translation team has its own mailing list. The up-to-date list of
+teams can be found at the Free Translation Project's homepage,
+`http://www.iro.umontreal.ca/contrib/po/HTML/', in the "National teams"
+area.
+
+ If you'd like to volunteer to _work_ at translating messages, you
+should become a member of the translating team for your own language.
+The subscribing address is _not_ the same as the list itself, it has
+`-request' appended. For example, speakers of Swedish can send a
+message to `sv-request@li.org', having this message body:
+
+ subscribe
+
+ Keep in mind that team members are expected to participate
+_actively_ in translations, or at solving translational difficulties,
+rather than merely lurking around. If your team does not exist yet and
+you want to start one, or if you are unsure about what to do or how to
+get started, please write to `translation@iro.umontreal.ca' to reach the
+coordinator for all translator teams.
+
+ The English team is special. It works at improving and uniformizing
+the terminology in use. Proven linguistic skill are praised more than
+programming skill, here.
+
+Available Packages
+==================
+
+ Languages are not equally supported in all packages. The following
+matrix shows the current state of internationalization, as of May 2003.
+The matrix shows, in regard of each package, for which languages PO
+files have been submitted to translation coordination, with a
+translation percentage of at least 50%.
+
+ Ready PO files am az be bg ca cs da de el en en_GB eo es
+ +-------------------------------------------+
+ a2ps | [] [] [] [] |
+ aegis | () |
+ anubis | |
+ ap-utils | |
+ bash | [] [] [] |
+ batchelor | |
+ bfd | [] [] |
+ binutils | [] [] |
+ bison | [] [] [] |
+ bluez-pin | [] [] |
+ clisp | |
+ clisp | [] [] [] |
+ coreutils | [] [] [] [] |
+ cpio | [] [] [] |
+ darkstat | () [] |
+ diffutils | [] [] [] [] [] [] [] |
+ e2fsprogs | [] [] |
+ enscript | [] [] [] [] |
+ error | [] [] [] [] [] |
+ fetchmail | [] () [] [] [] [] |
+ fileutils | [] [] [] |
+ findutils | [] [] [] [] [] [] |
+ flex | [] [] [] [] |
+ gas | [] |
+ gawk | [] [] [] [] |
+ gcal | [] |
+ gcc | [] [] |
+ gettext | [] [] [] [] [] |
+ gettext-runtime | [] [] [] [] [] |
+ gettext-tools | [] [] |
+ gimp-print | [] [] [] [] [] |
+ gliv | |
+ glunarclock | [] [] [] |
+ gnucash | () [] |
+ gnucash-glossary | [] () [] |
+ gnupg | [] () [] [] [] [] |
+ gpe-calendar | [] |
+ gpe-conf | [] |
+ gpe-contacts | [] |
+ gpe-edit | |
+ gpe-login | [] |
+ gpe-ownerinfo | [] |
+ gpe-sketchbook | [] |
+ gpe-timesheet | |
+ gpe-today | [] |
+ gpe-todo | [] |
+ gphoto2 | [] [] [] [] |
+ gprof | [] [] |
+ gpsdrive | () () () |
+ grep | [] [] [] [] [] |
+ gretl | [] |
+ hello | [] [] [] [] [] [] |
+ id-utils | [] [] |
+ indent | [] [] [] [] |
+ jpilot | [] [] [] [] |
+ jwhois | [] |
+ kbd | [] [] [] [] [] |
+ ld | [] [] |
+ libc | [] [] [] [] [] [] |
+ libgpewidget | [] |
+ libiconv | [] [] [] [] [] |
+ lifelines | [] () |
+ lilypond | [] |
+ lingoteach | |
+ lingoteach_lessons | () () |
+ lynx | [] [] [] [] |
+ m4 | [] [] [] [] |
+ mailutils | [] [] |
+ make | [] [] [] |
+ man-db | [] () [] [] () |
+ mysecretdiary | [] [] [] |
+ nano | [] () [] [] [] |
+ nano_1_0 | [] () [] [] [] |
+ opcodes | [] [] |
+ parted | [] [] [] [] [] |
+ ptx | [] [] [] [] [] |
+ python | |
+ radius | |
+ recode | [] [] [] [] [] [] |
+ screem | |
+ sed | [] [] [] [] [] |
+ sh-utils | [] [] [] |
+ sharutils | [] [] [] [] [] [] |
+ sketch | [] () [] |
+ soundtracker | [] [] [] |
+ sp | [] |
+ tar | [] [] [] [] |
+ texinfo | [] [] [] [] |
+ textutils | [] [] [] [] |
+ tin | () () |
+ util-linux | [] [] [] [] [] |
+ vorbis-tools | [] [] [] |
+ wastesedge | () |
+ wdiff | [] [] [] [] |
+ wget | [] [] [] [] [] [] [] |
+ xchat | [] [] [] |
+ xpad | |
+ +-------------------------------------------+
+ am az be bg ca cs da de el en en_GB eo es
+ 0 1 4 2 31 17 54 60 14 1 4 12 56
+
+ et fa fi fr ga gl he hr hu id it ja ko
+ +----------------------------------------+
+ a2ps | [] [] [] () () |
+ aegis | |
+ anubis | [] |
+ ap-utils | [] |
+ bash | [] [] |
+ batchelor | [] |
+ bfd | [] [] |
+ binutils | [] [] |
+ bison | [] [] [] [] |
+ bluez-pin | [] [] [] [] |
+ clisp | |
+ clisp | [] |
+ coreutils | [] [] [] [] |
+ cpio | [] [] [] [] |
+ darkstat | () [] [] [] |
+ diffutils | [] [] [] [] [] [] [] |
+ e2fsprogs | |
+ enscript | [] [] |
+ error | [] [] [] [] |
+ fetchmail | [] |
+ fileutils | [] [] [] [] [] |
+ findutils | [] [] [] [] [] [] [] [] [] [] [] |
+ flex | [] [] |
+ gas | [] |
+ gawk | [] [] |
+ gcal | [] |
+ gcc | [] |
+ gettext | [] [] [] |
+ gettext-runtime | [] [] [] [] |
+ gettext-tools | [] |
+ gimp-print | [] [] |
+ gliv | () |
+ glunarclock | [] [] [] [] |
+ gnucash | [] |
+ gnucash-glossary | [] |
+ gnupg | [] [] [] [] [] [] [] |
+ gpe-calendar | [] |
+ gpe-conf | |
+ gpe-contacts | [] |
+ gpe-edit | [] [] |
+ gpe-login | [] |
+ gpe-ownerinfo | [] [] [] |
+ gpe-sketchbook | [] |
+ gpe-timesheet | [] [] [] |
+ gpe-today | [] [] |
+ gpe-todo | [] [] |
+ gphoto2 | [] [] [] |
+ gprof | [] [] |
+ gpsdrive | () [] () () |
+ grep | [] [] [] [] [] [] [] [] [] [] [] |
+ gretl | [] |
+ hello | [] [] [] [] [] [] [] [] [] [] [] [] [] |
+ id-utils | [] [] [] |
+ indent | [] [] [] [] [] [] [] [] |
+ jpilot | [] () |
+ jwhois | [] [] [] [] |
+ kbd | [] |
+ ld | [] |
+ libc | [] [] [] [] [] [] |
+ libgpewidget | [] [] [] |
+ libiconv | [] [] [] [] [] [] [] [] |
+ lifelines | () |
+ lilypond | [] |
+ lingoteach | [] [] |
+ lingoteach_lessons | |
+ lynx | [] [] [] [] |
+ m4 | [] [] [] [] |
+ mailutils | |
+ make | [] [] [] [] [] [] |
+ man-db | [] () () |
+ mysecretdiary | [] [] |
+ nano | [] [] [] [] |
+ nano_1_0 | [] [] [] [] |
+ opcodes | [] [] |
+ parted | [] [] [] |
+ ptx | [] [] [] [] [] [] [] |
+ python | |
+ radius | |
+ recode | [] [] [] [] [] [] |
+ screem | |
+ sed | [] [] [] [] [] [] [] [] |
+ sh-utils | [] [] [] [] [] [] |
+ sharutils | [] [] [] [] [] |
+ sketch | [] |
+ soundtracker | [] [] [] |
+ sp | [] () |
+ tar | [] [] [] [] [] [] [] [] [] |
+ texinfo | [] [] [] [] |
+ textutils | [] [] [] [] [] |
+ tin | [] () |
+ util-linux | [] [] [] [] () [] |
+ vorbis-tools | [] |
+ wastesedge | () |
+ wdiff | [] [] [] [] [] |
+ wget | [] [] [] [] [] [] [] [] |
+ xchat | [] [] [] |
+ xpad | |
+ +----------------------------------------+
+ et fa fi fr ga gl he hr hu id it ja ko
+ 20 1 15 73 14 24 8 10 30 31 19 31 9
+
+ lg lt lv ms nb nl nn no pl pt pt_BR ro
+ +----------------------------------------+
+ a2ps | [] [] () () () [] [] |
+ aegis | () |
+ anubis | [] [] |
+ ap-utils | () |
+ bash | [] |
+ batchelor | |
+ bfd | |
+ binutils | |
+ bison | [] [] [] [] |
+ bluez-pin | [] |
+ clisp | |
+ clisp | [] |
+ coreutils | [] |
+ cpio | [] [] [] |
+ darkstat | [] [] [] [] |
+ diffutils | [] [] [] |
+ e2fsprogs | |
+ enscript | [] [] |
+ error | [] [] |
+ fetchmail | () () |
+ fileutils | [] |
+ findutils | [] [] [] [] |
+ flex | [] |
+ gas | |
+ gawk | [] |
+ gcal | |
+ gcc | |
+ gettext | [] |
+ gettext-runtime | [] |
+ gettext-tools | |
+ gimp-print | [] |
+ gliv | [] |
+ glunarclock | [] |
+ gnucash | |
+ gnucash-glossary | [] [] |
+ gnupg | |
+ gpe-calendar | [] [] |
+ gpe-conf | [] [] |
+ gpe-contacts | [] |
+ gpe-edit | [] [] |
+ gpe-login | [] [] |
+ gpe-ownerinfo | [] [] |
+ gpe-sketchbook | [] [] |
+ gpe-timesheet | [] [] |
+ gpe-today | [] [] |
+ gpe-todo | [] [] |
+ gphoto2 | |
+ gprof | [] |
+ gpsdrive | () () () |
+ grep | [] [] [] [] |
+ gretl | |
+ hello | [] [] [] [] [] [] [] [] [] |
+ id-utils | [] [] [] |
+ indent | [] [] [] |
+ jpilot | () () |
+ jwhois | [] [] [] |
+ kbd | |
+ ld | |
+ libc | [] [] [] [] |
+ libgpewidget | [] [] |
+ libiconv | [] [] |
+ lifelines | |
+ lilypond | [] |
+ lingoteach | |
+ lingoteach_lessons | |
+ lynx | [] [] |
+ m4 | [] [] [] [] |
+ mailutils | |
+ make | [] [] |
+ man-db | [] |
+ mysecretdiary | [] |
+ nano | [] [] [] [] |
+ nano_1_0 | [] [] [] [] |
+ opcodes | [] [] [] |
+ parted | [] [] [] |
+ ptx | [] [] [] [] [] [] [] |
+ python | |
+ radius | |
+ recode | [] [] [] |
+ screem | |
+ sed | [] [] |
+ sh-utils | [] |
+ sharutils | [] |
+ sketch | [] |
+ soundtracker | |
+ sp | |
+ tar | [] [] [] [] [] [] |
+ texinfo | [] |
+ textutils | [] |
+ tin | |
+ util-linux | [] [] |
+ vorbis-tools | [] [] |
+ wastesedge | |
+ wdiff | [] [] [] [] |
+ wget | [] [] [] |
+ xchat | [] [] |
+ xpad | [] |
+ +----------------------------------------+
+ lg lt lv ms nb nl nn no pl pt pt_BR ro
+ 0 0 2 11 7 26 3 4 18 15 34 34
+
+ ru sk sl sr sv ta tr uk vi wa zh_CN zh_TW
+ +-------------------------------------------+
+ a2ps | [] [] [] [] [] | 16
+ aegis | () | 0
+ anubis | [] [] | 5
+ ap-utils | () | 1
+ bash | [] | 7
+ batchelor | | 1
+ bfd | [] [] [] | 7
+ binutils | [] [] [] | 7
+ bison | [] [] | 13
+ bluez-pin | | 7
+ clisp | | 0
+ clisp | | 5
+ coreutils | [] [] [] [] [] | 14
+ cpio | [] [] [] | 13
+ darkstat | [] () () | 9
+ diffutils | [] [] [] [] | 21
+ e2fsprogs | [] | 3
+ enscript | [] [] [] | 11
+ error | [] [] [] | 14
+ fetchmail | [] | 7
+ fileutils | [] [] [] [] [] [] | 15
+ findutils | [] [] [] [] [] [] | 27
+ flex | [] [] [] | 10
+ gas | [] | 3
+ gawk | [] [] | 9
+ gcal | [] [] | 4
+ gcc | [] | 4
+ gettext | [] [] [] [] [] [] | 15
+ gettext-runtime | [] [] [] [] [] [] | 16
+ gettext-tools | [] [] | 5
+ gimp-print | [] [] | 10
+ gliv | | 1
+ glunarclock | [] [] [] | 11
+ gnucash | [] [] | 4
+ gnucash-glossary | [] [] [] | 8
+ gnupg | [] [] [] [] | 16
+ gpe-calendar | [] | 5
+ gpe-conf | | 3
+ gpe-contacts | [] | 4
+ gpe-edit | [] | 5
+ gpe-login | [] | 5
+ gpe-ownerinfo | [] | 7
+ gpe-sketchbook | [] | 5
+ gpe-timesheet | [] | 6
+ gpe-today | [] | 6
+ gpe-todo | [] | 6
+ gphoto2 | [] [] | 9
+ gprof | [] [] | 7
+ gpsdrive | [] [] | 3
+ grep | [] [] [] [] | 24
+ gretl | | 2
+ hello | [] [] [] [] [] | 33
+ id-utils | [] [] [] | 11
+ indent | [] [] [] [] | 19
+ jpilot | [] [] [] [] [] | 10
+ jwhois | () () [] [] | 10
+ kbd | [] [] | 8
+ ld | [] [] | 5
+ libc | [] [] [] [] | 20
+ libgpewidget | | 6
+ libiconv | [] [] [] [] [] [] | 21
+ lifelines | [] | 2
+ lilypond | [] | 4
+ lingoteach | | 2
+ lingoteach_lessons | () | 0
+ lynx | [] [] [] [] | 14
+ m4 | [] [] [] | 15
+ mailutils | | 2
+ make | [] [] [] [] | 15
+ man-db | [] | 6
+ mysecretdiary | [] [] | 8
+ nano | [] [] [] | 15
+ nano_1_0 | [] [] [] | 15
+ opcodes | [] [] | 9
+ parted | [] [] | 13
+ ptx | [] [] [] | 22
+ python | | 0
+ radius | | 0
+ recode | [] [] [] [] | 19
+ screem | [] | 1
+ sed | [] [] [] [] [] | 20
+ sh-utils | [] [] [] | 13
+ sharutils | [] [] [] [] | 16
+ sketch | [] | 5
+ soundtracker | [] | 7
+ sp | [] | 3
+ tar | [] [] [] [] [] | 24
+ texinfo | [] [] [] [] | 13
+ textutils | [] [] [] [] [] | 15
+ tin | | 1
+ util-linux | [] [] | 14
+ vorbis-tools | [] | 7
+ wastesedge | | 0
+ wdiff | [] [] [] [] | 17
+ wget | [] [] [] [] [] [] [] | 25
+ xchat | [] [] [] | 11
+ xpad | | 1
+ +-------------------------------------------+
+ 50 teams ru sk sl sr sv ta tr uk vi wa zh_CN zh_TW
+ 97 domains 32 19 16 0 56 0 48 10 1 1 12 23 913
+
+ Some counters in the preceding matrix are higher than the number of
+visible blocks let us expect. This is because a few extra PO files are
+used for implementing regional variants of languages, or language
+dialects.
+
+ For a PO file in the matrix above to be effective, the package to
+which it applies should also have been internationalized and
+distributed as such by its maintainer. There might be an observable
+lag between the mere existence a PO file and its wide availability in a
+distribution.
+
+ If May 2003 seems to be old, you may fetch a more recent copy of
+this `ABOUT-NLS' file on most GNU archive sites. The most up-to-date
+matrix with full percentage details can be found at
+`http://www.iro.umontreal.ca/contrib/po/HTML/matrix.html'.
+
+Using `gettext' in new packages
+===============================
+
+ If you are writing a freely available program and want to
+internationalize it you are welcome to use GNU `gettext' in your
+package. Of course you have to respect the GNU Library General Public
+License which covers the use of the GNU `gettext' library. This means
+in particular that even non-free programs can use `libintl' as a shared
+library, whereas only free software can use `libintl' as a static
+library or use modified versions of `libintl'.
+
+ Once the sources are changed appropriately and the setup can handle
+the use of `gettext' the only thing missing are the translations. The
+Free Translation Project is also available for packages which are not
+developed inside the GNU project. Therefore the information given above
+applies also for every other Free Software Project. Contact
+`translation@iro.umontreal.ca' to make the `.pot' files available to
+the translation teams.
+
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..0a3ca6f
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,8 @@
+Authors of GNU Bison.
+
+Bison was written primarily by Robert Corbett.
+
+Richard Stallman made it Yacc-compatible.
+
+Wilfred Hansen of Carnegie Mellon University added multicharacter
+string literals and other features.
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..5ce7308
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,84 @@
+#
+# Copyright 2006 The Android Open Source Project
+#
+# Android Asset Packaging Tool
+#
+
+ifeq ($(HOST_OS),linux)
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ lib/abitset.c \
+ lib/argmatch.c \
+ lib/basename.c \
+ lib/bitset.c \
+ lib/bitset_stats.c \
+ lib/bitsetv-print.c \
+ lib/bitsetv.c \
+ lib/dirname.c \
+ lib/dup-safer.c \
+ lib/ebitset.c \
+ lib/exitfail.c \
+ lib/fd-safer.c \
+ lib/fopen-safer.c \
+ lib/get-errno.c \
+ lib/hard-locale.c \
+ lib/hash.c \
+ lib/lbitset.c \
+ lib/mbswidth.c \
+ lib/pipe-safer.c \
+ lib/quote.c \
+ lib/quotearg.c \
+ lib/stripslash.c \
+ lib/subpipe.c \
+ lib/timevar.c \
+ lib/vbitset.c \
+ lib/xalloc-die.c \
+ lib/xmalloc.c \
+ lib/xstrndup.c \
+ \
+ src/LR0.c \
+ src/assoc.c \
+ src/closure.c \
+ src/complain.c \
+ src/conflicts.c \
+ src/derives.c \
+ src/files.c \
+ src/getargs.c \
+ src/gram.c \
+ src/lalr.c \
+ src/location.c \
+ src/main.c \
+ src/muscle_tab.c \
+ src/nullable.c \
+ src/output.c \
+ src/parse-gram.c \
+ src/print.c \
+ src/print_graph.c \
+ src/reader.c \
+ src/reduce.c \
+ src/relation.c \
+ src/scan-gram-c.c \
+ src/scan-skel-c.c \
+ src/state.c \
+ src/symlist.c \
+ src/symtab.c \
+ src/tables.c \
+ src/uniqstr.c \
+ src/vcg.c
+
+LOCAL_MODULE := bison
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_IS_HOST_MODULE := true
+intermediates := $(call local-intermediates-dir)
+
+LOCAL_CFLAGS := -DHAVE_CONFIG_H -DPKGDATADIR=\"$(LOCAL_PATH)/data\"
+
+LOCAL_C_INCLUDES := \
+ $(LOCAL_PATH)/lib
+
+include $(BUILD_HOST_EXECUTABLE)
+
+endif
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..3912109
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
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+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
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+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
+ 1 and 2 above on a medium customarily used for software interchange; or,
+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
+ machine-readable copy of the corresponding source code, to be
+ distributed under the terms of Sections 1 and 2 above on a medium
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+
+ c) Accompany it with the information you received as to the offer
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+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
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+
+The source code for a work means the preferred form of the work for
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+
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+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..c44f0e4
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,16034 @@
+2006-06-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.3.
+ * configure.ac (AC_INIT): Likewise.
+
+2006-05-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (YYRECOVERING): Define to be a function-like macro
+ with no arguments, not as an object-like macro. This is for
+ compatibility with data/yacc.c. Problem reported by John P. Hartmann in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
+ * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
+ Document this.
+
+2006-05-30 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/getargs.c (usage): Back out yesterday's modification of the
+ --help output so that we don't have to wait for translation before
+ releasing 2.3.
+
+2006-05-29 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
+ Problem reported by Akim Demaille.
+
+2006-05-29 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
+
+2006-05-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (yy_reduce_print): Omit trailing white space in
+ generated source code. Problem reported by Frans Englich in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
+
+2006-05-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
+ shell, not within 'make', so that 'make' by an ordinary builder
+ (using GNU make) does not worry about configuring gzip. This also
+ works around a bug reported independently by Keith Thompson and by
+ Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
+ stderr rather than stdout, messing up the build logs.
+
+2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
+ to make sure that YYID will never be unused. This fixes a 'make
+ maintainer-check' failure caused by the recent changes to the 'Trivial
+ grammars' test case, which caused g++ 4.1.0 to complain that YYID was
+ not used.
+ * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
+
+2006-05-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
+ state before an empty RHS is always resolved here. Only the location
+ of that state is guaranteed to be resolved, and that's enough. This
+ fixes the remaining bug reported by Derek M. Jones in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+ * tests/glr-regression.at (Uninitialized location when reporting
+ ambiguity): Test the above case.
+ Also, the embedded comments in this test case claim it checks the case
+ of an empty RHS that has inherited the initial location. However, the
+ corresponding LHS was already resolved, so yyresolveLocations didn't
+ actually have reason to modify it. Fix this by forcing
+ nondeterministic operation at the beginning of the parse.
+
+2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (b4_yy_symbol_print_generate):
+ (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
+ 'const YYSTYPE', and similarly for YYLTYPE. This fixes one
+ of the bugs reported today by Derek M Jones in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+ * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
+ defined to be a type name without parens or brackets.
+ (Location Type): Similarly for YYLTYPE.
+ * tests/regression.at (Trivial grammars): Put in a test for this
+ bug that will be caught by 'make maintainer-check' (though not,
+ alas, by 'make check' unless your compiler is picky).
+
+2006-05-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.2.
+ * configure.ac (AC_INIT): Likewise.
+
+2006-05-17 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyreportTree): Make room in yystates for the state
+ preceding the RHS. This fixes the segmentation fault reported by Derek
+ M. Jones in
+ <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
+ (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
+ to the user. Reported for yyreportTree by Derek M. Jones later in the
+ same thread.
+ * THANKS: Add Derek M. Jones.
+ Update my email address.
+ Fix typo in Steve Murphy's name.
+
+2006-05-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
+ checking against YYLAST that caused the parser to miss a potential
+ alternative in its diagnostic.
+ Problem reported by Maria Jose Moron Fernandez in
+ <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
+ * data/lalr1.cc (yysyntax_error_): Likewise.
+ * data/yacc.c (yysyntax_error): Likewise.
+ * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
+ tokens, in case we run into an older C compiler.
+ (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
+ Use them to check for the off-by-one error fixed above.
+
+ * data/yacc.c (yytnamerr): Fix typo: local var should be of type
+ YYSIZE_T, not size_t.
+ * tests/regression.at (Trivial grammars): New test, to catch
+ the error fixed by the above patch.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
+ scheme.
+ Reported by Steve Murphy.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
+ * data/glr.cc: b4_location_flag is now b4_locations_flag.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ Implement --trace=m4.
+ * src/getargs.c (trace_types, trace_args): Accept trace_m4.
+ * src/output.c (output_skeleton): When set, pass -dV to m4.
+
+ Factor the handling of flags in m4.
+ * src/output.c (prepare): Rename the muscle names debug, defines,
+ error_verbose to debug_flag, defines_flag, error_verbose_flag.
+ * data/c.m4: Adjust.
+ (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
+ Use b4_define_flag_if to define other b4_FLAG_if macros.
+ (b4_location_if): As a consequence, rename as...
+ (b4_locations_if): this, for consistency.
+ Adjust all the skeletons.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * etc/bench.pm: Shorten bench names.
+
+2006-05-14 Akim Demaille <akim@lrde.epita.fr>
+
+ * src/output.h, src/output.c (error_verbose): Move to...
+ * src/getargs.h, src/getargs.c: here.
+ Sort the flags.
+ Adjust dependencies.
+
+2006-05-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (b4_copyright): Put the special exception for Bison
+ skeletons here, so we don't have to put it in each skeleton. All
+ uses changed. Suggested by Akim Demaille. Also, wrap the
+ copyright notice, in case it is longer than 80 columns. Replace
+ comma by newline after title.
+
+2006-05-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
+ incompatibility, not a bug. Mention that it wasn't fixed as of
+ flex 2.5.33.
+
+2006-05-11 Akim Demaille <akim@lrde.epita.fr>
+
+ * examples/extexi: Enforce the precedence of concatenation over
+ >>.
+ Reported by Tommy Nordgren.
+
+2006-05-11 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
+ with the member "token".
+ Reported by Martin Nylin.
+
+2006-05-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c: Switch to Bison 2.2 special-exception language in
+ the copyright notice. Use more-regular format for titles and
+ copyright notices.
+ * data/glr.cc: Likewise.
+ * data/location.cc: Likewise.
+ * data/yacc.cc: Likewise.
+ * doc/bison.texinfo (Conditions): Document this.
+ * NEWS: likewise. Upgrade version to 2.2.
+
+2006-04-27 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/glr.cc: Remove dead code.
+
+2006-04-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
+ that variable and the line breaks the bootstrap. Problem reported
+ by Juan M. Guerrero.
+
+2006-04-24 Akim Demaille <akim@lrde.epita.fr>
+
+ * doc/bison.texinfo (Multiple start-symbols): New.
+
+2006-04-24 Akim Demaille <akim@lrde.epita.fr>
+
+ * etc/README, etc/bench.pl: New.
+
+2006-04-03 Akim Demaille <akim@lrde.epita.fr>
+
+ * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
+ rule.
+ Reported by Mickael Labau.
+ * tests/input.at (Torturing the Scanner): Test it.
+
+2006-03-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
+ Problem reported by Bob Rossi.
+
+2006-03-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
+ and didn't really work.
+ For the index, use @ifnotinfo, not @iftex.
+ Minor cleanups of spacing and terminology.
+
+2006-03-12 Akim Demaille <akim@lrde.epita.fr>
+
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
+ of AT_NAME_PREFIX when %name-prefix is not used.
+
+2006-03-12 Akim Demaille <akim@lrde.epita.fr>
+
+ Apply --prefix to C++ skeletons too: they change the namespace.
+ The test suite already exercize these cases.
+ * data/c++.m4 (b4_namespace): New.
+ * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
+ * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
+ * data/yacc.c, data/glr.c: Remove a useless `[]'.
+ * doc/bison.texinfo: Document it.
+ (Option Cross Key): Use @multitable in all formats. It looks
+ nicer, even in TeX outputs.
+ (Rules): Use the same code whatever the output type is.
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
+ (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
+ * tests/calc.at: Use it, instead of hard coding `yy'.
+
+2006-03-10 Akim Demaille <akim@lrde.epita.fr>
+
+ * TODO: Remove dead items.
+
+2006-03-10 Akim Demaille <akim@lrde.epita.fr>
+
+ * doc/FAQ: Remove, merged into...
+ * doc/bison.texinfo (FAQ): this.
+ * doc/Makefile.am (EXTRA_DIST): Adjust.
+
+2006-03-10 Akim Demaille <akim@lrde.epita.fr>
+
+ * data/c.m4 (b4_token_enum): Always define the enum of tokens,
+ even if empty.
+ * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
+ * doc/bison.texinfo (Calc++ Scanner): Use it.
+
+2006-03-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix two nits reported by twlevo, plus one more that I discovered.
+
+ * src/assoc.h (assoc_to_string): Give a name to the arg, as
+ this is the usual Bison style.
+ * src/location.h (location_print): Likewise.
+
+ * src/reader.h (token_name): Likewise.
+
+2006-03-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix some nits reported by twlevo.
+ * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
+ and "POSIX". Use more-modern syntax for URLs. Mention C++
+ and ask for Java. Don't hardwire OS version numbers. Add
+ copyright notice.
+ * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
+ * src/conflicts.c (solved_conflicts_obstack): Now static.
+
+2006-03-08 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
+ page. Say "you can use it" not "you may use it" as on the web page;
+ we're describing capabilities not granting permission.
+
+2006-03-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyresolveLocations): Rename local variables to avoid
+ shadowing warnings. Use usual patter for iterating through RHS.
+ * tests/glr-regression.at
+ (Uninitialized location when reporting ambiguity):
+ Modify yylex so that it uses its argument, rather than trying
+ to rely on ARGSUSED (which doesn't work for gcc with warnings).
+ const char -> char const.
+
+ * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
+ Don't use tabs inside commands; it messes up 'ps'.
+ Problem reported by twlevo.
+
+2006-03-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/glr-regression.at (Uninitialized location when reporting
+ ambiguity): New test case.
+ * data/glr.c (yyresolveLocations): New function, which uses
+ YYLLOC_DEFAULT.
+ (yyresolveValue): Invoke yyresolveLocations before reporting an
+ ambiguity.
+ * doc/bison.texinfo (Default Action for Locations): Note
+ YYLLOC_DEFAULT's usage for ambiguity locations.
+ (GLR Semantic Actions): Cross-reference those notes.
+
+2006-03-04 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/glr-regression.at (Leaked semantic values when reporting
+ ambiguity): Remove unnecessary union and type declarations.
+ (Leaked lookahead after nondeterministic parse syntax error): New test
+ case.
+ * data/glr.c (yyparse): Check for zero stacks remaining before
+ attempting to shift the lookahead so that you don't lose it.
+
+2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
+ * tests/glr-regression.at (Leaked semantic values when reporting
+ ambiguity): New test case.
+ * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
+ yyabort rather than invoking yyFail, which invokes longjmp. Remove the
+ now unnecessary yystackp parameter.
+ (yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
+ destructors can be called.
+
+ * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
+ in existing testcases.
+
+2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ Don't leak semantic values for parent RHS when a user action cuts the
+ parser, and clean up related code a bit.
+ * tests/glr-regression.at (Leaked merged semantic value if user action
+ cuts parse): Rename to...
+ (Leaked semantic values if user action cuts parse): ... this. Add check
+ for leaked parent RHS values.
+ * data/glr.c (yydestroyGLRState): In debugging output, distinguish
+ between an unresolved state (non-empty chain of semantic options) and
+ an incomplete one (signaled by an empty chain).
+ (yyresolveStates): Document the interface. Move all manipulation of a
+ successfully or unsuccessfully resolved yyGLRState to...
+ (yyresolveValue): ... here so that yyresolveValue always leaves a
+ yyGLRState with consistent data and thus is easier to understand.
+ Remove the yyvalp and yylocp parameters since they are always just
+ taken from the yys parameter. When reporting a discarded merged value
+ in debugging output, note that it is incompletely merged. Document the
+ interface.
+ (yyresolveAction): If resolving any of the RHS states fails, destroy
+ them all rather than leaking them. Thus, as long as user actions are
+ written to clean up the RHS correctly, yyresolveAction always cleans up
+ the RHS of a semantic option. Document the interface.
+
+2006-02-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
+ led to a segmentation fault in GNU Pascal. Problem reported
+ by Waldek Hebisch.
+
+2006-02-21 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
+ mid-rule action inside a nonterminal symbol in order to declare a
+ destructor for its semantic value.
+
+2006-02-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
+ YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
+ __cplusplus && ! defined _STDLIB_H && !
+ ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
+ defined free))]: Include <stdlib.h> rather than rolling our own
+ declarations of malloc and free, to avoid problems with
+ incompatible declarations (using 'throw') C++'s stdlib.h. This
+ should fix Debian bug 340012
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
+ reported by Guillaume Melquiond.
+
+2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Clarify symbols versus types in unused-value warnings.
+
+ * configure.ac (AC_INIT): Bump version number.
+
+2006-02-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.1a.
+ * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
+ since C99 requires this.
+
+2006-02-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * m4/c-working.m4: New file.
+ * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
+
+2006-02-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ * Makefile.maint: Merge from coreutils.
+
+2006-02-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+ * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
+ configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
+ CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
+ LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
+ messes up because C++ code is compiled in 32-bit mode but linked
+ in 64-bit mode.
+
+2006-02-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+ * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
+ 2.5.31. This resembles the 2005-10-10 patch to src/scan-skel.l.
+
+ * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
+ nodist_PROGRAMS, since we don't need to actually compile the
+ example if we're just doing a plain 'make'. This avoids bothering
+ the installer unnecessarily about problems due to weird C++
+ compilers.
+
+2006-02-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+ * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
+ than #include "...", and compile with -I'.'. The old method was
+ not portable, according to Posix and the C standard, and it does
+ not work with Sun C 5.7, where previous #line directives affect
+ the working directory used in later #include "..." directives.
+
+2006-02-06 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ Various DJGGP specific issues in /djgpp
+
+2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+ * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
+ '#include <map>' works and that you can apply ++ to iterators.
+
+2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
+
+ Work around portability problems summarized by Nelson H. F. Beebe in
+ <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
+
+ * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
+ that '#include <string>' works.
+
+ * data/lalr1.cc (yytranslate_): No longer inline, to work around a
+ porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
+ "warning: sorry: semantics of inline function static data `const
+ unsigned char translate_table[262]' are wrong (you'll wind up with
+ multiple copies)".
+
+ * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
+ or, xor to not_, and_, or_, and xor_, respectively. This works
+ around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
+ random system header somewhere that includes the equivalent of
+ <iso646.h>.
+
+ * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
+ -E" works; it apparently doesn't work with PathScale EKO Compiler
+ Suite Version 2.0.
+
+2006-01-30 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ During deterministic GLR operation, user actions should be able to
+ influence the parse by changing yychar. To make this easier to fix and
+ to make glr.c easier to evolve in general, don't maintain yytoken in
+ parallel with yychar; just compute yytoken when needed.
+ * tests/glr-regression.at (Incorrect lookahead during deterministic
+ GLR): Check that setting yychar in a user action has the intended
+ effect.
+ * data/glr.c (yyGLRStack): Remove yytokenp member.
+ (yyclearin): Don't set *yytokenp.
+ (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
+ yychar rather than *yytokenp to determine the current lookahead.
+ Compute yytoken locally when needed.
+ (yyparse): Likewise. Remove the local yytoken that yytokenp used to
+ point to.
+
+ * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
+ after `--report' documentation.
+
+2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/parse-gram.y (grammar_declaration): Location of printer
+ symbol is @1, not list->location. Bug reported by twlevo.
+ * tests/input.at (Incompatible Aliases): Adjust to above change.
+
+2006-01-29 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove. Instead, do
+ all the test at once. This makes the output easier to read in the
+ normal case.
+
+ Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
+ got from <http://bro-ids.org/download.html>. The bug is that
+ when two actions appeared in succession, the second one was
+ scanned before the first one was added to the grammar rule
+ as a midrule action. Bison then output the incorrect warning
+ "parse.y:905.17-906.36: warning: unused value: $3".
+ * src/parse-gram.y (BRACED_CODE, action): These are no longer
+ associated with a value.
+ (rhs): Don't invoke grammar_current_rule_action_append.
+ (action): Invoke it here instead.
+ * src/reader.c (grammar_midrule_action): Now extern.
+ (grammar_current_rule_action_append): Don't invoke
+ grammar_midrule_action; that is now the scanner's job.
+ * src/reader.h (last_string, last_braced_code_loc):
+ (grammar_midrule_action): New decls.
+ * src/scan-gram.l (last_string): Now extern, sigh.
+ (last_braced_code_loc): New extern variable.
+ (<INITIAL>"{"): Invoke grammar_midrule_action if the current
+ rule already has an action.
+ (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
+ * tests/input.at (AT_CHECK_UNUSED_VALUES):
+ Add some tests to check that the above changes fixed the bug.
+
+2006-01-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
+ All used changed. Check whether the symbol has a destructor,
+ not whether it is typed.
+ * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
+ that the values are still reported as unused. All line numbers
+ adjusted.
+
+2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ Work around a bug in bro 0.8, which underparenthesizes its
+ definition of YYLLOC_DEFAULT.
+ * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
+ their arguments.
+ * data/lalr1.cc: Likewise.
+ * data/yacc.cc: Likewise.
+
+2006-01-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ Work around a bug in Pike 7.0, and give the Pike folks a
+ better way to override the usual int widths.
+ * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
+ user can override the types.
+ (short): #undef, to work around a bug in Pike 7.0.
+ (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
+ (union yyalloc.yyss): Use yytype_int16 rather than short.
+ All uses changed.
+ (yysigned_char): Remove.
+ * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
+ (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
+ * tests/regression.at (Web2c Actions): Adjust to above changes.
+
+ * src/reader.c (check_and_convert_grammar): New function.
+ (reader): Close the input file even if something went wrong during
+ parsing. Minor file descriptor leak reported by twlevo.
+
+ * src/assoc.c (assoc_to_string): Use a default: abort (); case
+ to pacify gcc -Wswitch-default.
+ * src/scan-gram.l (adjust_location): Use a default: break; case
+ to pacify gcc -Wswitch-default.
+ * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
+ (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
+ (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
+ Move these decls to scan-skel.l, since they don't need to be
+ visible elsewhere.
+ * src/scan-skel.l: Accept the above decls.
+ (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
+ is used.
+
+2006-01-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * Makefile.cfg (local-checks-to-skip): Add changelog-check,
+ since we don't want to insist on a version number at the start
+ of the changelog every time.
+ * Makefile.maint: Sync from coreutils a bit better.
+ (sc_trailing_blank): Renamed from sc_trailing_space.
+ All uses changed.
+ (sc_no_if_have_config_h, sc_require_config_h):
+ (sc_prohibit_assert_without_use): New rules.
+ (sc_obsolete_symbols): Don't catch Makefile.maint itself.
+ (sc_dd_max_sym_length): Fix leading spaces in rule.
+ (sc_system_h_headers): Prefix with @.
+ (sc_useless_cpp_parens, m4-check): Output line numbers.
+ (changelog-check): Allow version only in head.
+ * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
+ satisfy new Makefile.maint rule.
+ * data/glr.c: Likewise.
+ * data/glr.cc: Likewise.
+ * data/lalr1.cc: Likewise.
+ * data/yacc.c: Likewise.
+ * lib/ebitsetv.c: Likewise.
+ * lib/lbitset.c: Likewise.
+ * lib/subpipe.c: Likewise.
+ * lib/timevar.c: Likewise.
+ * src/system.h: Likewise.
+ * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
+ * djgpp/Makefile.maint: Add copyright notice.
+ * djgpp/README.in: Likewise.
+ * djgpp/config.bat: Likewise.
+ * djgpp/config.site: Likewise.
+ * djgpp/config_h.sed: Likewise.
+ * djgpp/djunpack.bat: Likewise.
+ * djgpp/config.sed: Fix copyright notice to match standard format.
+ * djgpp/subpipe.h: Likewise.
+ * lib/bitsetv-print.c: Likewise.
+ * lib/bitsetv.c: Likewise.
+ * lib/subpipe.h: Likewise.
+ * lib/timevar.c: Likewise.
+ * lib/timevar.h: Likewise.
+ * djgpp/subpipe.c: Use standard recipe for config.h.
+ * lib/abitset.c: Likewise.
+ * lib/bitset.c: Likewise.
+ * lib/bitset_stats.c: Likewise.
+ * lib/bitsetv-print.c: Likewise.
+ * lib/bitsetv.c: Likewise.
+ * lib/ebitsetv.c: Likewise.
+ * lib/get-errno.c: Likewise.
+ * lib/lbitset.c: Likewise.
+ * lib/subpipe.c: Likewise.
+ * lib/timevar.c: Likewise.
+ * lib/vbitset.c: Likewise.
+ * tests/local.at: Likewise.
+ * src/scan-gram.l: Don't include verify.h, since system.h does
+ that for us.
+ * .x-sc_require_config_h: New file.
+ * .x-sc_unmarked_diagnostics: New file.
+
+2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ Be a bit more systematic about using 'abort'.
+ * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
+ * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
+ Put 'default: abort ();' before some other case, to satisfy older
+ pedantic compilers.
+ * lib/bitset_stats.c (bitset_stats_init): Likewise.
+ * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
+ * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
+ * src/conflicts.c (resolve_sr_conflict): Likewise.
+ * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
+ (get_decision_str, get_orientation_str, get_node_alignment_str):
+ (get_arrow_mode_str, get_crossing_type_str, get_view_str):
+ (get_linestyle_str, get_arrowstyle_str): Likewise.
+ * src/conflicts.c (resolve_sr_conflict):
+ Use a default case rather than one for the one remaining enum
+ value, to catch invalid enum values as well.
+ * src/lalr.c (set_goto_map, map_goto):
+ Prefer "assert (FOO);" to "if (!FOO) abort ();".
+ * src/nullable.c (nullable_compute, token_definitions_output):
+ Likewise.
+ * src/reader.c (packgram, reader): Likewise.
+ * src/state.c (transitions_to, state_new, state_reduction_find):
+ Likewise.
+ * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
+ (symbol_pack): Likewise.
+ * src/tables.c (conflict_row, pack_vector): Likewise.
+ * src/scan-skel.l (QPUTS): Remove unnecessary parens.
+ (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
+ * src/system.h: Don't include <assert.h>.
+ (assert): New macro.
+
+ * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
+ (Destructor Decl, Parser Function, Pure Calling):
+ Describe rules for braces inside C code more carefully.
+
+2006-01-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix some porting glitches found by Nelson H. F. Beebe.
+ * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
+ compilers that don't understand that abort () does not return.
+ * src/state.c (transitions_to): Likewise.
+ * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
+ that '#include <cstdlib>' works.
+ * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
+ (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
+ #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
+ for the benefit of some pre-C99 compilers.
+
+ * bootstrap: Undo changes to gnulib files that autoreconf made.
+
+ Minor fixups to get 'make maintainer-check' to work.
+ * configure.ac: Don't use -Wnested-externs, as it's incompatible
+ with the new verify.h implementation.
+ * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
+ * data/glr.c (YYUSE): Depend on __GNUC__ as well.
+ * data/yacc.c (YYUSE): Likewise.
+ * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
+ * lib/subpipe.c (end_of_output_subpipe): The args are unused.
+ * src/parse-gram.y (declaration): Don't pass a string constant
+ to a function that expects char *, since GCC might complain
+ about the constant value.
+ * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
+ before #defining them.
+ * tests/glr-regression.at
+ (Incorrectly initialized location for empty right-hand side in GLR):
+ In yyerror, use the msg arg.
+ (Corrupted semantic options if user action cuts parse):
+ (Incorrect lookahead during deterministic GLR):
+ (Incorrect lookahead during nondeterministic GLR):
+ Don't name a local var 'index'; it shadows string.h's 'index'.
+
+2006-01-19 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
+ location, not just parts of it.
+
+2006-01-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Document the fact that multiple %unions are now allowed.
+ * doc/bison.texinfo (Union Decl): Likewise.
+ * TODO: This feature is now implemented, so remove it from
+ the wishlist.
+
+ * Makefile.maint: Merge with coreutils Makefile.maint.
+ (CVS_LIST): Use build-aux version if available.
+ (VERSION_REGEXP): New macro.
+ (syntax-check-rules): Add sc_no_if_have_config_h,
+ sc_prohibit_assert_without_use, sc_require_config_h,
+ sc_useless_cpp_parens.
+ (sc_obsolete_symbols): Check for O_NDELAY.
+ (sc_dd_max_sym_length): Track coreutils.
+ (sc_unmarked_diagnostics): Look in all files, not just *.c.
+ (sc_useless_cpp_parens): New rule.
+ (news-date-check): Look for version or today's date.
+ (changelog-check): Don't require version number near head.
+ (copyright-check): Use current year instead of hardwiring 2005.
+ (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
+ (announcement): Add --gpg-key-ID.
+
+ * djgpp/config.sed: Add copyright notice, and replace "filesystem"
+ with "file system".
+
+ Avoid undefined behavior that addressed just before the start of an
+ array. Problem reported by twlevo.
+ * src/reader.c (packgram): Prepend a new sentinel before ritem.
+ * src/lalr.c (build_relations): Rely on new sentinel.
+ * src/gram.c (gram_free): Adjust to new sentinel.
+
+2006-01-12 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
+ yylookaheadNeeds. All uses updated.
+ (yysplitStack): Rename local yynewLookaheadStatuses to
+ yynewLookaheadNeeds.
+ * data/glr-regression.at (Incorrect lookahead during nondeterministic
+ GLR): In comments, change `lookahead status' to `lookahead need'.
+
+2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
+
+ * data/glr.c (yysplitStack): A little stylistic rewrite.
+
+2006-01-11 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
+
+ * data/glr.c (yyaddDeferredAction): Flesh out the comment.
+
+2006-01-11 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * doc/bison.texinfo: Fix some typos.
+ (GLR Semantic Actions): New subsection discussing special
+ considerations because GLR semantic actions might be deferred.
+ (Actions): Mention look-ahead usage of yylval.
+ (Actions and Locations): Mention look-ahead usage of yylloc.
+ (Special Features for Use in Actions): Add YYEOF entry and mention it
+ in the yychar entry.
+ In the yychar entry, remove mention of the local yychar case (pure
+ parser) since this is irrelevant information when writing semantic
+ actions and since it's already discussed in `Bison Symbols' where
+ yychar is otherwise described as an external variable.
+ In the yychar entry, don't call it the `current' look-ahead since it
+ isn't when semantic actions are deferred.
+ In the yychar and yyclearin entries, add note about deferred semantic
+ actions.
+ Add yylloc and yylval entries discussing look-ahead usage.
+ (Look-Ahead Tokens): When discussing yychar, don't call it the
+ `current' look-ahead, and do mention yylval and yylloc.
+ (Error Recovery): Cross-reference `Action Features' when mentioning
+ yyclearin.
+ (Bison Symbols): In the yychar entry, don't call it the `current'
+ look-ahead.
+ In the yylloc and yylval entries, mention look-ahead usage.
+
+2006-01-08 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/glr-regression.at: Update copyright year to 2006.
+
+2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
+ use during nondeterministic operation to track which stacks have
+ actually needed the current lookahead.
+ (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
+ Allocate, deallocate, resize, and otherwise shuffle space for
+ yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
+ (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
+ appropriately during nondeterministic operation.
+ (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
+ members to store the current lookahead to be used by the deferred
+ user action.
+ (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
+ from which the RHS is taken. Set the lookahead members of the new
+ yySemanticOption according to the lookahead status for stack yyk.
+ (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
+ yyaddDeferredAction.
+ (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
+ members of yySemanticOption before invoking yyuserAction, and then set
+ them back to their current values afterward.
+ (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
+ (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
+ * tests/glr-regression.at: Remove `.' from the ends of recent test case
+ titles for consistency.
+ (Leaked merged semantic value if user action cuts parse): In order to
+ suppress lint warnings, use arguments in merge function, and assign
+ char value < 128 in main.
+ (Incorrect lookahead during deterministic GLR): New test case.
+ (Incorrect lookahead during nondeterministic GLR): New test case.
+
+2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
+ !yyvaluep as signal that no semantic value is available to print.
+ * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
+ to print a semantic value.
+
+2006-01-06 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * tests/glr-regression.at: For consistency with my newer test cases,
+ don't thank myself.
+
+2006-01-05 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyresolveValue): When merging semantic options, if at
+ least one user action succeeds but a later one cuts the parse, then
+ destroy the semantic value before returning rather than leaking it.
+ (yyresolveStates): If a user action cuts the parse and thus
+ yyresolveValue fails, ignore the (unset) semantic value rather than
+ corrupting the yyGLRState, and empty the semantic options list since
+ the user actions should have called all necessary destructors.
+ Simplify code with YYCHK.
+ * tests/glr-regression.at (Corrupted semantic options if user action
+ cuts parse): New test case.
+ (Undesirable destructors if user action cuts parse): New test case.
+ Before applying any of this patch, this test case never actually failed
+ for me... but only because the corrupted semantic options usually
+ masked this bug.
+ (Leaked merged semantic value if user action cuts parse): New test
+ case.
+
+2006-01-05 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
+
+2006-01-04 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (b4_c_modern): New macro, with a new provision for
+ _MSC_VER. Problem reported by Cenzato Marco.
+ (b4_c_function_def): Use it.
+ * data/yacc.c (YYMODERN_C): Remove. All uses replaced by
+ b4_c_modern.
+ (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
+ than rolling our own.
+
+2006-01-04 Akim Demaille <akim@epita.fr>
+
+ Also warn about non-used mid-rule values.
+ * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
+ member.
+ (symbol_list_new): Adjust.
+ * src/reader.c (symbol_typed_p): New.
+ (grammar_rule_check): Use it.
+ (grammar_midrule_action): Bind a mid-rule LHS to its rule.
+ Check its rule.
+ * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
+ Use it.
+ * tests/actions.at (Exotic Dollars): Adjust.
+
+2006-01-04 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (grammar_midrule_action): If $$ is set in a
+ mid-rule, move the `used' bit to its lhs.
+ * tests/input.at (Unused values): New.
+ * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
+
+2006-01-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Bison Options): Say more accurately what
+ --yacc does.
+ * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
+ about declarations in the grammar when in Yacc mode, as POSIX does
+ not require a diagnostic when the grammar uses extensions.
+
+ * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
+
+ Warn about dubious constructions like "%token T T".
+ Reported by twlevo.
+ * src/symtab.h (struct symbol.declared): New member.
+ * src/symtab.c (symbol_new): Initialize it to false.
+ (symbol_class_set): New arg DECLARING, specifying whether
+ this is a declaration that we want to warn about, if there
+ is more than one of them. All uses changed.
+
+ * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
+ Allow multiple %union directives, whose contents concatenate.
+ * src/parse-gram.y (grammar_declaration): Likewise.
+ Use muscle_code_grow, so that we don't need stype_line any more.
+ All uses changed.
+
+ * src/muscle_tab.c (muscle_grow): Fix comment.
+
+ * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
+ * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
+ Update copyright year to 2006.
+
+2006-01-03 Akim Demaille <akim@epita.fr>
+
+ Have glr.cc pass (some of) the calc.at tests.
+ * data/glr.cc (b4_parse_param_orig): New.
+ (b4_parse_param): Improve its definition, and bound it more
+ clearly in the skeleton.
+ (b4_epilogue): Append, instead of prepending, in order to keep
+ #line consistency.
+ Simplify the generation of auxiliary functions: locations and
+ purity are mandated.
+ (b4_global_tokens_and_yystype): Honor it.
+ * data/location.cc (c++.m4): Don't include it.
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
+ and AT_SKEL_CC_IF.
+ * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
+ AT_LALR1_CC_IF.
+ Be sure to initialize the first position's filename.
+ (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
+ mandated anyway.
+ (AT_CHECK_CALC_GLR_CC): New.
+ Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
+
+2006-01-02 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_skeleton): Don't hard wire the inclusion of
+ c.m4.
+ * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
+ * data/glr.cc: Do not include stack.hh.
+
+2006-01-02 Joel E. Denny <jdenny@ces.clemson.edu>
+
+ * data/glr.c: Reformat whitespace with tabs.
+ (b4_lpure_formals): Remove this unused m4 macro.
+ * tests/cxx-type.at: Reformat whitespace with tabs.
+ (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
+ since it's a member. Rename type to isNterm for clarity.
+
+2005-12-29 Akim <akim@sulaco.local>
+
+ Let glr.cc catch up with symbol_value_print.
+ * data/glr.cc (b4_yysymprint_generate): Replace by...
+ (b4_yy_symbol_print_generate): this.
+ (yy_symbol_print, yy_symbol_value_print): Declare them.
+
+2005-12-28 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/location.h (boundary): Note that a line or column equal
+ to INT_MAX indicates an overflow.
+ * src/scan-gram.l: Include verify.h. Don't include get-errno.h.
+ (rule_length_overflow, increment_rule_length, add_column_width):
+ New functions.
+ (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
+ (<SC_BRACED_CODE>"}"):
+ Use increment_rule_length rather than incrementing it by hand.
+ (adjust_location, handle_syncline): Diagnose overflow.
+ (handle_action_dollar, handle_action_at):
+ Fix bug with monstrosities like $-2147483648.
+ Remove now-unnecessary checks.
+ (scan_integer): Verify assumptions and remove now-unnecessary checks.
+ (convert_ucn_to_byte): Verify assumptions.
+ (handle_syncline): New arg LOC. All callers changed.
+ Don't store through a value derived from char const * pointer.
+
+ * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
+ GCC warnings.
+
+2005-12-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/reader.c (grammar_midrule_action, grammar_symbol_append):
+ Remove unnecessary forward static decls.
+
+2005-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (grammar_current_rule_check): Also check that $$
+ is used.
+ Take the rule to check as argument, hence rename as...
+ (grammar_rule_check): this.
+ * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
+ Rename as...
+ (grammar_rule_begin, grammar_rule_end): these, for consistency.
+ (grammar_midrule_action, grammar_symbol_append): Now static.
+ * tests/torture.at (input): Don't rely on the default action
+ being always performed.
+ * tests/calc.at: "Set" $$ even when the action is "cut" with
+ YYERROR or other.
+ * tests/actions.at (Exotic Dollars): Instead of using unused
+ values, check that the warning is issued.
+
+2005-12-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Improve wording for unused-value warnings.
+
+2005-12-22 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
+ (b4_yysymprint_generate): Rename as...
+ (b4_yy_symbol_print_generate): this.
+ Generate yy_symbol_print instead of yysymprint.
+ Generate also yy_symbol_value_print, and use it.
+
+2005-12-22 Akim Demaille <akim@epita.fr>
+
+ * NEWS: Warn about unused values.
+ * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
+ a `used' member.
+ (symbol_list_n_get, symbol_list_n_used_set): New.
+ (symbol_list_n_type_name_get): Use symbol_list_n_get.
+ * src/scan-gram.l (handle_action_dollar): Flag used symbols.
+ * src/reader.c (grammar_current_rule_check): Check that values are
+ used.
+ * src/symtab.c (symbol_print): Accept 0.
+ * tests/existing.at: Remove the type information.
+ Empty the actions.
+ Remove useless actions (beware of mid-rule actions: perl -000
+ -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
+ * tests/actions.at (Exotic Dollars): Use unused values.
+ * tests/calc.at: Likewise.
+ * tests/glr-regression.at (No users destructors if stack 0 deleted):
+ Likewise.
+
+ * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
+ rule_useful_p.
+
+2005-12-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ Undo 2005-12-01 tentative license wording change. The wording is
+ still being reviewed by the lawyers, and we don't want to wait for
+ them before publishing a test release. For now, revert to the
+ previous wording.
+ * NEWS: Undo 2005-12-01 change.
+ * data/glr.c: Revert to previous license wording.
+ * data/glr.cc: Likewise.
+ * data/lalr1.cc: Likewise.
+ * data/location.cc: Likewise.
+ * data/yacc.c: Likewise.
+
+ * NEWS: Reword %destructor vs YYABORT etc.
+ * data/glr.c: Use American spacing, for consistency.
+ * data/glr.cc: Likewise.
+ * data/lalr1.cc: Likewise.
+ * data/yacc.c: Likewise.
+ * data/yacc.c: Reformat comments slightly.
+ * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
+ for consistency. Fix some spelling errors and reword recently-included
+ text slightly.
+ * tests/cxx-type.at: Cast results of malloc, for C++.
+
+2005-12-21 Joel E. Denny <address@hidden>
+
+ * tests/cxx-type.at: Construct a tree, count the parents of shared
+ nodes, and free each node once and only once. Previously, the memory
+ for semantic values was leaked instead.
+
+2005-12-21 Joel E. Denny <address@hidden>
+
+ * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
+ (yylval, yylloc): If pure, #define to yystackp->yyval and
+ yystackp->yyloc similar to yychar and yynerrs.
+ (yyparse): If pure, remove local yylval and yylloc. Add local
+ yystackp to accommodate pure definitions of yylval and yylloc.
+ (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
+ yylvalp and yyllocp to &yylval and &yylloc.
+ (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
+ namespace. Previously, nerrs and char were missing, but lval and lloc
+ weren't necessary.
+ (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
+ yylvalp and yyllocp parameters since, if pure, these are now always
+ accessible through yystackp. If not pure, they are still accessible
+ globally.
+ * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
+ `if (YYID (N))' to pacify lint.
+
+2005-12-21 Akim Demaille <akim@epita.fr>
+
+ YYACCEPT, YYERROR, and YYABORT, as user actions, should not
+ destroy the RHS symbols of a rule.
+ * data/yacc.c (yylen): Initialize to 0.
+ Keep its value to the number of items to possibly shift.
+ In particular, a regular successful parse that ends on YYFINAL by
+ a (internal) YYACCEPT must not have yylen != 0.
+ (yyerrorlab, yyreturn): Pop the RHS.
+ Reorder a bit to emphasize the `shifting' bits of code.
+ (YYPOPSTACK): Now accept a number of items to pop.
+ * data/lalr1.cc: Likewise.
+ * data/glr.c: Formatting changes.
+ Use goto instead of fall through.
+ * doc/bison.texinfo (Destructor Decl): Complete.
+
+2005-12-20 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ * Makefile.am: DJGPP specific files added to EXTRA_DIST.
+ * djgpp/Makefile.maint: Fix PACKAGE variable computation.
+ * djgpp/config.bat: Replace every occurence of the file name
+ scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
+ c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
+ * djgpp/config.sed: Replace every occurence of the file name
+ scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
+ c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
+ * djgpp/djunpack.bat: DJGPP specific file.
+ * djgpp/fnchange.lst: DJGPP specific file.
+ * djgpp/README.in: Add new information about how to unpack the bison
+ source on MSDOS and other systems which have 8.3 file name restrictions
+ using djunpack.bat and fnchange.lst.
+
+2005-12-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap (build_cvs_prefix): Remove; unused.
+ (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
+ when getting gnulib.
+
+2005-12-12 "Joel E. Denny" <jdenny@ces.clemson.edu>
+
+ * data/glr.c: Reorder typedef declarations for structs to match order
+ of struct declarations.
+ Rename yystack everywhere to yystackp except in yyparse where it's not
+ a pointer.
+ (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
+ consistency.
+ (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
+ (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
+ (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
+ lint.
+
+2005-12-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/sets.at (Accept): Fix typos in regular expression used to
+ sed out the final state number.
+
+ Work around portability problem on Solaris 10: flex-generated
+ files include <stdio.h> before <config.h>, which messes up
+ because the latter defines __EXTENSIONS__. Address the problem
+ by creating two new little files that include <config.h> first,
+ then include the flex-generated files. Rewrite everyone else
+ to include <config.h> first, as well.
+ * lib/timevar.c: Always include "config.h".
+ * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
+ scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
+ (EXTRA_bison_SOURCES): New macro.
+ * src/scan-gram-c.c, src/scan-skel-c.c: New files.
+ * src/system.h: Don't include config.h.
+ * src/LR0.c: Include <config.h> first.
+ * src/assoc.c: Likewise.
+ * src/closure.c: Likewise.
+ * src/complain.c: Likewise.
+ * src/conflicts.c: Likewise.
+ * src/derives.c: Likewise.
+ * src/files.c: Likewise.
+ * src/getargs.c: Likewise.
+ * src/gram.c: Likewise.
+ * src/lalr.c: Likewise.
+ * src/location.c: Likewise.
+ * src/main.c: Likewise.
+ * src/muscle_tab.c: Likewise.
+ * src/nullable.c: Likewise.
+ * src/output.c: Likewise.
+ * src/parse-gram.y: Likewise.
+ * src/print.c: Likewise.
+ * src/print_graph.c: Likewise.
+ * src/reader.c: Likewise.
+ * src/reduce.c: Likewise.
+ * src/relation.c: Likewise.
+ * src/state.c: Likewise.
+ * src/symlist.c: Likewise.
+ * src/symtab.c: Likewise.
+ * src/tables.c: Likewise.
+ * src/uniqstr.c: Likewise.
+ * src/vcg.c: Likewise.
+
+ * src/parse-gram.y: Fix minor problems uncovered by lint.
+ (current_lhs, current_lhs_location): Now static.
+ (current_assoc): Remove unused variable.
+
+ Cleanups so that Bison-generated parsers have less lint.
+ * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
+ Prepend /*ARGSUSED*/, for lint's sake.
+ * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
+ definition if 'lint' is defined.
+ (YYID): New macro (or function, if lint).
+ All uses of /*CONSTCOND*/0 replaced by YYID(0).
+ * data/yacc.c: Likewise.
+ * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
+ (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
+ * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
+ is C++ only.
+ * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
+ * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
+ Use YYID(0) rather than 0, for lint.
+ (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
+ (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
+
+2005-12-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/glr-regression.at
+ (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+ Close memory leak reported by twlevo.
+
+2005-12-06 "Joel E. Denny" <jdenny@ces.clemson.edu>
+
+ * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
+ all stacks.
+ (yyparse): Iterate another stack in order to call user destructors.
+ * tests/glr-regression.at (No users destructors if stack 0 deleted):
+ New test case.
+ (Duplicated user destructor for lookahead): This test now is expected
+ to succeed.
+
+2005-12-01 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Document the following change.
+ * data/yacc.c: Say "parser skeleton" rather than "file", since
+ it's no longer just a file.
+ * data/glr.c: Grant a special exception for C GLR parsers, that
+ reads like the already-existing exception for C LALR(1) parsers.
+ * data/glr.cc: Likewise.
+ * data/lalr1.cc: Likewise.
+ * data/location.cc: Likewise.
+ * data/yacc.c: Reword the "written by" statement to clarify that
+ it was the parser skeleton, not the entire output file.
+ * data/glr.c: Written by Paul Hilfinger.
+ * data/glr.cc: Written by Akim Demaille.
+ * data/lalr1.cc: Likewise.
+
+2005-11-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
+ Fix typos in previous change that broke 'make check'.
+ YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
+ supported in C.
+ * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
+ Don't check NUM-STDERR-LINES, since the output format is fluctuating.
+ We can revert this once things settle down.
+
+ * src/conflicts.c (conflicts_print): Don't print file name twice
+ when %expect fails because there were no conflicts.
+ * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
+ change.
+ * tests/conflicts.at (%expect not enough, %expect too much):
+ (%expect with reduce conflicts): Adjust to new behavior.
+
+2005-11-18 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
+ errors.
+ * NEWS: Document this.
+ * doc/bison.texinfo (Expect Decl): Likewise.
+
+2005-11-16 Akim Demaille <akim@epita.fr>
+
+ Generalize the display of semantic values and locations in traces.
+ * data/glr.c (yy_reduce_print): Fix indices (again).
+ * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
+ literal integers.
+ * data/lalr1.cc (yyreduce_print): Rename as...
+ (yy_reduce_print): this.
+ Display values and locations.
+ * data/yacc.c (yy_reduce_print): Likewise.
+ (YY_REDUCE_PRINT): Adjust to pass the required arguments.
+ (yysymprint): Move higher to be visible from yy_reduce_print).
+ (yyparse): Adjust.
+ * tests/calc.at: Adjust the expected length of the traces.
+
+2005-11-14 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
+ from 1 to N, while values and location start at 0.
+ (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
+
+2005-11-14 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (yy_reduce_print): Fix the $ number.
+
+2005-11-14 Akim Demaille <akim@epita.fr>
+
+ "Use" parse parameters.
+ * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
+ * data/glr.c, data/glr.cc: Use them.
+ * data/glr.c (YYUSE): Have a C++ definition that supports
+ non-pointer types.
+
+2005-11-14 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (yyexpandGLRStack): Declare only if defined.
+
+2005-11-14 Akim Demaille <akim@epita.fr>
+
+ * data/glr.cc: New.
+ * data/m4sugar/m4sugar.m4 (m4_prepend): New.
+
+2005-11-12 Akim Demaille <akim@epita.fr>
+
+ Let position and location be PODs.
+ * data/location.cc (position::initialize, location::initialize): New.
+ (position::position, location::location): Define only if
+ b4_location_constructors is defined.
+ * data/lalr1.cc (b4_location_constructors): Define it for backward
+ compatibility.
+ * doc/bison.texinfo (Initial Action Decl): Use initialize.
+
+2005-11-12 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Move the body of the ctor and dtor into the
+ parser file (instead of the header).
+ Wrap the implementations in a "namespace yy".
+
+2005-11-12 Akim Demaille <akim@epita.fr>
+
+ Have glr.c include its header file when created.
+ * data/glr.c (b4_shared_declarations): New.
+ Output them verbatim in the parser if !%defines, otherwise
+ output then in the header file, and include it instead.
+
+2005-11-11 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c: Comment changes.
+
+2005-11-11 Akim Demaille <akim@epita.fr>
+
+ When yydebug, report semantic and location values for reductions.
+ * data/glr.c (yy_reduce_print): Report the semantic values and the
+ locations.
+ (YY_REDUCE_PRINT): Adjust.
+ (yyglrReduce): Use them.
+ (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
+ * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
+ * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
+ traces.
+
+2005-11-10 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
+ (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
+ (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
+
+2005-11-09 Albert Chin-A-Young <china@thewrittenword.com>
+
+ * m4/cxx.m4, examples/Makefile.am: Don't build
+ examples/calc++ if no C++ compiler is available. (trivial change)
+
+2005-11-09 Akim Demaille <akim@epita.fr>
+
+ * src/scan-skel.l: Use a couple of asserts.
+
+2005-11-03 Akim Demaille <akim@epita.fr>
+
+ In some (weird) cases, the final state number is incorrect.
+ Reported by Alexandre Duret-Lutz.
+ * src/LR0.c (state_list_append): Remove the computation of
+ final_state.
+ (save_reductions): Do it here.
+ (get_state): Alpha conversion.
+ (generate_states): Use a for loop.
+ * src/gram.h (item_number_is_rule_number)
+ (item_number_is_symbol_number): New.
+ * src/state.c: Use assert.
+ * src/system.h: Include assert.h.
+ * tests/sets.at (Accept): New.
+
+2005-10-30 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
+
+ * data/glr.c (yyfill): Adjust comment.
+ (yyresolveAction): Initialize default location properly
+ for empty right-hand sides.
+ (yydoAction): Ditto.
+ Add comment explaining apparently dead code.
+ * tests/glr-regression.at
+ (Incorrectly initialized location for empty right-hand side in GLR):
+ New test.
+
+2005-10-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap (cleanup_gnulib): New function. Use it to clean up
+ gnulib when interrupted. This fixes some race conditions and
+ works around some portability problems (one noted by Paul
+ Hilfinger).
+
+2005-10-22 Akim <akim@epita.fr>
+
+ * Makefile.cfg: Adjust to config -> build-aux.
+ Reported by twledo.
+
+2005-10-21 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
+ the %parse-params.
+ * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
+ * data/yacc.c (b4_Pure_if): Rename as...
+ (b4_yacc_pure_if): this.
+ (YY_SYMBOL_PRINT, yyparse): Adjust.
+ * doc/bison.texinfo: Formatting changes.
+
+2005-10-21 Akim Demaille <akim@epita.fr>
+
+ Finish the transition config -> build-aux.
+ * configure.ac, Makefile.am: Use build-aux.
+ * config/prev-version, config/announce-gen, config/Makefile.am:
+ Move to...
+ * build-aux/prev-version, build-aux/announce-gen,
+ * build-aux/Makefile.am: here.
+
+2005-10-14 Akim Demaille <akim@epita.fr>
+
+ * examples/calc++/test: Use set -x only when VERBOSE.
+
+2005-10-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
+ * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
+
+2005-10-13 Akim Demaille <akim@epita.fr>
+
+ * src/scan-skel.l: Output the base name parts of the parser and
+ header file names.
+ * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
+ additional checks.
+ Use this to exercise C++ outputs in subdirs.
+ Reported by Oleg Smolsky.
+
+2005-10-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
+ __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
+ Problem reported by John P. Hartmann.
+ * data/yacc.c (YYMODERN_C): Likewise. Don't define if the user has
+ already defined it.
+
+2005-10-12 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (version_check): Exit 63 to please missing
+ (stands for "version mismatch).
+ * tests/input.at, doc/bison.texinfo: Adjust.
+
+2005-10-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ Work around portability problems with Visual Age C compiler
+ (xlc and xlC_r) reported by John P. Hartmann.
+ * data/location.cc (initial_column, initial_line): Remove.
+ All uses replaced by 0 and 1.
+ * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
+ that xlc complains about.
+ * src/scan-skel.l (skel_wrap): Likewise.
+ * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
+ as __STDC__.
+ * data/yacc.c (YYMODERN_C): New macro, which also looks at
+ __STDC_VERSION__. Use it everywhere instead of looking at
+ __STDC__ and __cplusplus.
+
+2005-10-10 Akim Demaille <akim@epita.fr>
+
+ * examples/calc++/test: Be quiet unless VERBOSE.
+
+2005-10-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (yydestruct, yysymprint):
+ Use YYUSE instead of casting to void.
+ * data/glr.c (YYUSE): New macro.
+ (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
+ Use it instead of rolling our own.
+ (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
+ (YYCHK1):
+ Use /*CONSTCOND*/ to suppress lint warnings.
+ * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
+ (YY_STACK_PRINT): Use 'false' not '0'.
+ (YYUSE): New macro.
+ (yysymprint_, yydestruct_): Use it instead of rolling our own.
+ * data/yacc.c (YYUSE): New macro.
+ (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
+ (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
+ (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
+
+
+ * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
+ (m4_map, m4_map_sep): Use it. Handle the empty list correctly.
+
+2005-10-04 Paul Eggert <eggert@cs.ucla.edu>
+
+ Undo the parts of the unlocked-I/O change that substituted
+ putc or puts for printf. This might hurt performance a bit,
+ but some people prefer the printf style.
+ * data/c.m4 (yysymprint): Prefer printf to puts and putc.
+ * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
+ All uses replaced by YYFPRINTF and YYDPRINTF.
+ * data/yacc.c: Likewise.
+ * lib/bitset.c (bitset_print): Likewise.
+ * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
+ putc and puts.
+ * lib/lbitset.c (debug_lbitset): Likewise.
+ * src/closure.c (print_firsts, print_fderives): Likewise.
+ * src/gram.c (grammar_dump): Likewise.
+ * src/lalr.c (look_ahead_tokens_print): Likewise.
+ * src/output.c (escaped_output): Likewise.
+ (user_actions_output): Break apart two printfs.
+ * src/parse-gram.y (%printer): Prefer printf to putc and puts.
+ * src/reduce.c (reduce_print): Likewise.
+ * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
+ * src/system.h: Include unlocked-io.h rathe than stdio.h.
+
+ * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
+ Use assignments rather than casts-to-void to suppress
+ unused-variable warnings. This pacifies 'lint'.
+ * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
+ unused-variable warnings.
+
+2005-10-03 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ * Makefile.am: DJGPP specific files added to EXTRA_DIST.
+
+2005-10-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ Use unlocked I/O for a minor performance improvement on hosts like
+ GNU/Linux and Solaris that support unlocked I/O. The basic idea
+ is to use the gnlib unlocked-io module, and to prefer putc and
+ puts to printf when either will work (since the latter doesn't
+ come in an unlocked flavor).
+ * bootstrap (gnulib_modules): Add unlocked-io.
+ * data/c.m4 (yysymprint): Prefer puts and putc to printf.
+ * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
+ Prefer them to YYFPRINTF and YYDPRINTF if either will do,
+ and similarly for puts and putc and printf.
+ * data/yacc.c: Likewise.
+ * lib/bitset.c (bitset_print): Likewise.
+ * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
+ * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
+ to printf.
+ * lib/lbitset.c (debug_lbitset): Likewise.
+ * src/closure.c (print_firsts, print_fderives): Likewise.
+ * src/gram.c (grammar_dump): Likewise.
+ * src/lalr.c (look_ahead_tokens_print): Likewise.
+ * src/output.c (escaped_output): Likewise.
+ (user_actions_output): Coalesce two printfs.
+ * src/parse-gram.y (%printer): Prefer putc and puts to printf.
+ * src/reduce.c (reduce_print): Likewise.
+ * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
+ * src/system.h: Include unlocked-io.h rather than stdio.h.
+
+ * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
+ this confuses xgettext.
+
+2005-10-02 Akim Demaille <akim@epita.fr>
+
+ * bootstrap (gnulib_modules): Add strverscmp.
+ * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
+ * m4/.cvsignore: Add strverscmp.m4.
+ * src/parse-gram.y (%require): New token, new rule.
+ (version_check): New.
+ * src/scan-gram.l (%require): Adjust.
+ * tests/input.at (AT_REQUIRE): New.
+ Use it.
+ * doc/bison.texinfo (Require Decl): New.
+ (Calc++ Parser): Use %require.
+
+2005-10-02 Akim Demaille <akim@epita.fr>
+
+ * data/location.cc: New.
+
+2005-10-02 Paul Eggert <eggert@cs.ucla.edu>,
+ Akim Demaille <akim@epita.fr>
+
+ Make sure -odir/foo.cc creates dir/location.hh etc.
+ * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
+ (spec_file_prefix, spec_verbose_file, spec_graph_file)
+ (spec_defines_file): Now const.
+ (dir_prefix): New.
+ (short_base_name): Remove.
+ * src/files.c: Adjust.
+ (dirname.h): Include.
+ (base_name): Don't prototype it.
+ (finput): Remove, duplicates gram_in.
+ (full_base_name, short_base_name): Replace by...
+ (all_but_ext, all_but_tab_ext): these.
+ (compute_base_names): Rename as...
+ (compute_file_name_parts): this.
+ Update to compute the new variables, including dir_prefix.
+ Adjust dependencies.
+ * src/output.c (prepare): Output them.
+ * src/reader.c: Adjust to use gram_in, not finput.
+ * src/scan-skel.l (@dir_prefix@): New.
+
+2005-10-02 Juan Manuel Guerrero <juan.guerrero@gmx.de>
+
+ * lib/subpipe.c: New function end_of_output_subpipe() added
+ to allow support for non-posix systems. This is a no-op function
+ for posix systems.
+
+ * lib/subpipe.h: New function end_of_output_subpipe() added
+ to allow support for non-posix systems. This is a no-op function
+ for posix systems.
+
+ * src/output.c (output_skeleton): Use end_of_output_subpipe() to
+ handle the lack of pipe/fork functionality on non-posix systems.
+
+ * djgpp/Makefile.maint: DJGPP specific file.
+
+ * djgpp/README.in: DJGPP specific file.
+
+ * djgpp/config.bat: DJGPP specific configuration file.
+
+ * djgpp/config.sed: DJGPP specific configuration file.
+
+ * djgpp/config.site: DJGPP specific configuration file.
+
+ * djgpp/config_h.sed: DJGPP specific configuration file.
+
+ * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
+
+ * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
+
+2005-10-02 Akim Demaille <akim@epita.fr>
+
+ * data/location.cc: New, extract from...
+ * data/lalr1.cc: here.
+ (location.hh): Include it after the user prologue, in case the
+ filename type is defined by the user.
+ Forward declation location and position before the pre-prologue.
+ (yyresult_): Rename as...
+ (yyresult): this, it's a local variable, not an attribute.
+ * data/Makefile.am (dist_pkgdata_DATA): Adjust.
+
+2005-10-01 Akim Demaille <akim@epita.fr>
+
+ * examples/extexi: Restore the #line generation.
+
+2005-09-30 Akim Demaille <akim@epita.fr>,
+ Alexandre Duret-Lutz <adl@gnu.org>
+
+ Move the token type and YYSTYPE in the parser class.
+ * data/lalr1.cc (stack.hh, location.hh): Include earlier.
+ (parser::token): New, from the moved free definition of tokens.
+ (parser::semantic_value): Now a full definition instead of an
+ indirection to YYSTYPE.
+ (b4_post_prologue): No longer included in the header file, but
+ in the implementation file.
+ * doc/bison.texi (C+ Language Interface): Update.
+ * src/parse-gram.y: Support unary %define.
+ * tests/actions.at: Define global_tokens_and_yystype for backward
+ compatibility until we update the tests.
+ * tests/calc.at: Idem.
+ (first_line, first_column, last_line, last_column): Define for lalr1.cc
+ to simplify the code.
+
+2005-09-29 Paul Eggert <eggert@cs.ucla.edu>
+
+ Port to SunOS 4.1.4, which lacks strtoul and strerror.
+ Ah, the good old days! Problem reported by Peter Klein.
+ * bootstrap (gnulib_modules): Add strerror, strtoul.
+ * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
+ * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
+
+2005-09-29 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_error_verbose_if): New.
+ * data/lalr1.cc: Use it.
+ (YYERROR_VERBOSE_IF): Remove.
+ (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
+ parser members, replaced by...
+ (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
+ local variables.
+ (yysyntax_error_): Takes the state number as argument.
+ (yyreduce_print_): Use the argument yyrule, not the former
+ attribute yyn_.
+
+2005-09-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap (gnulib_modules): Add verify.
+ * lib/.cvsignore: Add verify.h.
+ * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
+ * src/system.h (verify): Remove.
+ Include verify.h instead.
+ * src/tables.c (tables_generate): Use new API for 'verify'.
+
+2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
+ local variables whose names begin with 'yy'.
+ * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
+ Trivial changes from Joel E. Denny.
+
+ * bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
+ it itself.
+ * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
+ don't use alloca any more.
+
+ * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
+ __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
+ defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
+ * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
+ to match yacc.c, to test more hosts.
+
+2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (YYSIZE_T): Reindent to make it clearer. This
+ doesn't affect behavior.
+ (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
+ Solaris, AIX, MSC.
+ (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H. All uses changed.
+ This works a bit better with glibc, if user code has already included
+ stdlib.h.
+ * doc/bison.texinfo (Bison Parser): Document that users can't
+ arbitrarily use malloc and free for other purposes. Document
+ that <alloca.h> and <malloc.h> might be included.
+ (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
+ user must declare alloca.
+
+ * HACKING (release): Forwarn the Translation Project about
+ stable releses.
+
+2005-09-20 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
+
+2005-09-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (YYSIZE_MAXIMUM): New macro.
+ (YYSTACK_ALLOC_MAXIMUM): Use it.
+ (yysyntax_error): New function.
+ (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
+ multiple syntax errors are reported, and alloca is being used.
+ Instead, reallocate buffers twice as big each time, so that
+ we waste at most half the allocated memory. Start with a small
+ (128-byte) buffer that will suffice in most cases anyway.
+ Use yysyntax_error to do most of the work.
+
+ * doc/bison.texinfo (Error Reporting, Table of Symbols):
+ yynerrs is the number of errors reported, not the number of
+ errors encountered.
+
+ * tests/glr-regression.at (Duplicated user destructor for lookahead):
+ Mark it as expected to fail.
+ Cast result of malloc; problem reported by twlevo@xs4all.nl.
+ * tests/actions.at, tests/calc.at, tests/glr-regression.at:
+ Don't start user-code symbols with "yy", to avoid name space problems.
+
+2005-09-19 Akim Demaille <akim@epita.fr>
+
+ Remove the traits, failed experiment.
+ It never proved useful, and anyway because of the current
+ definition, it was not possible to have several specialization of
+ this traits, making it useless.
+ * data/lalr1.cc (yy:traits): Remove.
+ Inline its definitions in the parser class.
+
+2005-09-19 Akim Demaille <akim@epita.fr>
+
+ * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
+ least Mac OSX with a /usr/local install of gettext.
+
+2005-09-19 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
+ and yytoken for similarity with the other skeletons.
+
+2005-09-19 Akim Demaille <akim@epita.fr>
+
+ * NEWS, configure.ac: update version number to 2.1a.
+
+2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.1.
+
+ * NEWS: Remove notice of yytname change, since it was never in an
+ official release.
+ * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
+ diagnostic.
+ * src/output.c (prepare): Likewise.
+ * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
+ (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
+ is not defined. This is an awful hack, but it's enough for now.
+ All callers changed.
+ * tests/glr-regression-at (make_value): Args are const pointers now,
+ to avoid GCC warning.
+ (Duplicated user destructor for lookahead): New test. Currently
+ skipped. It fails on my host but I'm not sure it'll always fail.
+
+2005-09-16 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h (struct symbol): Declare the printer and destructor
+ as const, to avoid accidental calls to free.
+ (symbol_destructor_set, symbol_printer_set): Adjust.
+ * src/symtab.c: Adjust.
+
+2005-09-16 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_token_enums): New.
+ (b4_token_defines): Rename as...
+ (b4_token_enums_defines): this.
+ (b4_token_defines): New, output only the #defines.
+ * data/yacc.c, data/glr.c: Adjust.
+ * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
+ * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
+ as default values.
+
+2005-09-16 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yylex_): Remove, inline its code.
+ (yyreport_syntax_error_): Remove, replaced by...
+ (yysyntax_error_): this which returns a string and leaves to the
+ caller the call to the users' error function.
+ (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
+ Move from members of the parser object...
+ (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
+ to local variables of the parse function.
+
+2005-09-16 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
+ since it's in Bison's name space.
+
+2005-09-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyresolveValue): Add default case to pacify
+ gcc -Wswitch-default. Problem reported by twlevo@xs4all.nl.
+
+ * NEWS: Document when yyparse started to return 2.
+ * doc/bison.texinfo (Parser Function): Document when yyparse
+ returns 2.
+
+ * data/lalr1.cc: Revert part of previous change, as it's incompatible.
+ (b4_filename_type): Renamed back from b4_file_name_type. All uses
+ changed.
+ (class position): file_name -> filename (reverting). All uses changed.
+
+2005-09-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
+ do anything if $@ exists. This reverts part of the 2005-07-07
+ patch.
+
+2005-09-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
+ contains obsolete information and isn't worth distributing as a
+ separate file anyway.
+ * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
+ (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
+ All uses of jmp_buf, setjmp, longjmp changed to use these instead.
+ (yyparse): Abort if user code uses longjmp to throw an unexpected
+ value.
+
+2005-09-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/c.m4 (b4_identification): Define YYBISON_VERSION.
+ Suggested by twlevo@xs4all.nl.
+
+ * data/glr.c (YYCHK1): Do not assume YYE is in range.
+ This avoids a diagnostic from gcc -Wswitch-enum.
+ Problem reported by twlevo@xs4all.nl.
+
+ * doc/bison.texinfo: Don't use "filename", as per GNU coding
+ standards. Use "file name" or "file" or "name", depending on
+ the context.
+ (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
+ not to hack/foo.tab.c.
+ (Calc++ Top Level): 2nd arg of main is not const.
+ * data/glr.c: b4_filename -> b4_file_name.
+ * data/lalr1.cc: Likewise. Also, b4_filename_type -> b4_file_name_type.
+ All uses changed.
+ (class position): filename -> file_name. All uses changed.
+ * data/yacc.c: b4_filename -> b4_file_name.
+ * lib/bitset.h: filename -> file_name in local vars.
+ * lib/bitset_stats.c: Likewise.
+ * src/files.c: Likewise.
+ * src/scan-skel.l ("@output ".*\n): Likewise.
+ * src/files.c (file_name_split): Renamed from filename_split.
+ * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
+
+2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
+ to accommodate latest gnulib.
+
+ * tests/glr-regression.at (Duplicate representation of merged trees):
+ Add casts to pacify g++. Problem reported by twlevo@xs4all.nl.
+
+ * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
+ needed.
+
+2005-08-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
+ All uses changed. Invoke user destructor after an error during a
+ split parse (trivial change from Joel E. Denny).
+
+ * tests/glr-regression.at
+ (User destructor after an error during a split parse): New test case.
+ Problem reported by Joel E. Denny in:
+ http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
+
+2005-08-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * README-cvs: Give URLs for recommended tools.
+ Mention Gzip version problem, and bootstrapping issues.
+ Remove troubleshooting section, as it's somewhat obsolete.
+
+ * bootstrap (no_cache): New var, to accommodate different wget
+ variants. Use it instead of '-C off'. Problem reported by
+ twlevo@xs4all.nl.
+
+ * data/glr.c (yydestroyStackItem): New function.
+ (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
+ debugging information. Problem reported by Joel E. Denny.
+
+2005-08-25 Akim Demaille <akim@epita.fr>
+
+ * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
+
+2005-08-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyrecoverSyntaxError, yyreturn):
+ Don't invoke destructor on unresolved entries.
+ * tests/glr-regression.at
+ (User destructor for unresolved GLR semantic value): New test case.
+ Problem reported by Joel E. Denny in:
+ http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
+
+2005-08-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
+ Add strnlen.c.
+ * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
+ lib-prefix.m4, po.m4.
+
+ * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
+ in yydestruct diagnostic, since it might not be an error.
+ Problem reported by Joel Denny near end of
+ <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
+ * data/lalr1.cc (yyerturn): Likewise.
+ * data/yacc.c (yyreturn): Likewise.
+ * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
+
+ * src/files.c: Remove obsolete FIXME comment.
+
+ * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
+ with the other templates, and to fix bogus run-on messages such
+ as the one reported at the end of
+ <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
+ All callers changed to avoid the newline.
+ (yyprocessOneStack): Output two lines rather than one, to accommodate
+ the above change. This changes the debug output format slightly.
+
+ * data/glr.c (yyresolveValue): Fix redundant parse tree problem
+ reported by Joel E. Denny in
+ <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
+ (trivial change).
+ * tests/glr-regression.at (Duplicate representation of merged trees):
+ New test, from Joel E. Denny in:
+ <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
+ * THANKS: Add Joel E. Denny.
+
+ * configure.ac (AC_INIT): Bump to 2.0c.
+
+2005-07-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.0b.
+
+ * Makefile.am (SUBDIRS): Put examples before tests, so that
+ "make check" doesn't finish with "All 1 tests passed".
+
+ * tests/regression.at (Token definitions): Don't rely on
+ AT_PARSER_CHECK for data that contains backslashes. It currently
+ uses 'echo', and 'echo' isn't portable if its argument contains
+ backslashes. Problem found on OpenBSD 3.4. Also, do not assume
+ that the byte '\0xff' is not printable in the C locale; it is,
+ under OpenBSD 3.4 (!). Luckily, '\0x80' through '\0x9e' are
+ not printable, so use '\0x81' to test.
+
+ * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
+ version of GCC, since the macro is used with non-GCC compilers.
+
+ Fix core dump reported by Pablo De Napoli in
+ <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
+ * tests/regression.at (Invalid inputs with {}): New test.
+ * src/parse-gram.y (token_name): Translate type before using
+ it as an index.
+
+ * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
+ the user's name space. All uses changed to __attribute__
+ ((__unused__)).
+ (yyFail, yyMemoryExhausted, yyreportAmbiguity):
+ Add __attribute__ ((__noreturn__)).
+
+ * etc/clcommit: Remove. We weren't using it, and it failed
+ "make maintainer-distcheck".
+ * Makefile.maint: Merge from coreutils.
+ (CVS_LIST, CVS_LIST_EXCEPT): New macros.
+ (syntax-check-rules): Change list of rules as described below.
+ (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
+ (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
+ (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
+ (sc_trailing_space): New rules.
+ (sc_xalloc_h_in_src): Remove.
+ (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
+ (sc_space_tab, sc_error_exit_success, sc_changelog):
+ (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
+ (makefile-check, po-check, author_mark_check):
+ (makefile_path_separator_check, copyright-check):
+ Use grep -n, to make it easier to find violations.
+ Use CVS_LIST and CVS_LIST_EXCEPT.
+ (header_regexp, h_re): Remove.
+ (dd_c): New macro.
+ (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
+ (my-distcheck): Use more-modern GCC flags.
+ (signatures, %.asc): Remove.
+ (rel-files, announcement): Remove signatures.
+ Restore old updating code, even though we don't use it, so
+ that we're the same as coreutils.
+ (alpha, beta, major): Depend on news-date-check.
+ Make the upload commands.
+
+ * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
+ * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
+ * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
+ * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
+ * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
+ * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
+ * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
+ * tests/sets.at: Likewise.
+
+ * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
+ we comment out the Autoconf version number.
+ * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
+ it's error-prone and "make maintainer-distcheck" rejects it.
+
+ * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
+ Indent calls to "error" to pacify "make maintainer-distcheck",
+ when the calls are not intended to be translated.
+ * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
+
+ * src/Makefile.am (DEFS): Use +=, to pacify
+ "make maintainer-distcheck".
+ (bison_SOURCES): Add scan-skel.h.
+ (sc_tight_scope): New rule, from coreutils.
+
+ * src/files.c (src_extension, header_extension):
+ Now static, not extern.
+ * src/getargs.c (short_options): Likewise.
+ * src/muscle_tab.c (muscle_table): Likewise.
+ * src/parse-gram.y (current_class, current_type, current_prec):
+ Likewise.
+ * src/reader.c (grammar_end, previous_rule_end): Likewise.
+ * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
+ * src/main.c (main): Cast bindtextdomain and textdomain calls to
+ void, to avoid warning when NLS is disabled.
+ * src/output.c: Include scan-skel.h.
+ (scan_skel): Remove decl, since scan-skel.h does this.
+ (output_skeleton):
+ Indent calls to "error" to pacify "make maintainer-distcheck".
+ * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
+ * src/reader.h (gram_end, gram_lineno): New decls to pacify
+ "make maintainer-distcheck".
+ * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
+ (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
+ (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
+ (skel_lex_destroy, scan_skel): Move these decls to...
+ * src/scan-skel.h: New file.
+ * src/uniqstr.c (uniqstr_assert):
+ Indent calls to "error" to pacify "make maintainer-distcheck".
+
+ * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
+ not @VAR@.
+
+ * tests/torture.at: Revamp to avoid misuse of atoi that
+ "make maintainer-distcheck" complained about.
+
+ * examples/extexi (message): Don't print a message more than once,
+ and omit line-number decoration that makes Emacs compile think
+ that informative messages are worth worrying about.
+
+2005-07-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * configure.ac: Update version number.
+
+ * Makefile.am (SUBDIRS): Add examples; somehow this got removed
+ accidentally.
+ * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
+ autogenerated by the maintainer.
+ * examples/calc++/.cvsignore: Add *.yy.
+
+ * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
+ * lib/bitset_stats.c (bitset_stats_init): Likewise.
+ * lib/bitsetv.c (bitsetv_alloc): Likewise.
+
+ * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
+
+ * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
+ from maintainer-distcheck about casting the argument of 'free'.
+
+ * NEWS: Mention recent yytname changes.
+ * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
+
+ * bootstrap: For translations that have not yet been upgraded to
+ the new runtime-po domain, prime the pump by extracting the
+ relevant strings from the obsolete translations. This code can be
+ removed once the bison-runtime domain has been translated by each
+ team.
+
+ * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
+ now that token names are already quoted.
+
+ Fix problem reported by Anthony Heading.
+ * data/glr.c (YYTOKEN_TABLE): New macro.
+ (yytname): Define if YYTOKEN_TABLE.
+ * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
+ * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
+ (YYERROR_VERBOSE): Define the same way the other skeletons do.
+ * src/output.c (prepare_symbols): Output token_table_flag.
+
+2005-07-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
+ again if the first call fails.
+
+ * data/glr.c (yytnamerr): New function.
+ (yyreportSyntaxError): Use it to dequote most string literals.
+ * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
+ with other skeletons. All uses changed.
+ (yytnameerr_): New function.
+ (yyreport_syntax_error): Use it to dequote most string literals.
+ * data/yacc.c (yytnamerr): New function.
+ (yyerrlab): Use it to decode most string literals.
+ * doc/bison.texinfo (Decl Summary, Calling Convention):
+ Clarify quoting convention of yytname.
+ * src/output.c (prepare_symbols): Quote all names. This undoes
+ the 2005-04-17 change, which is now accomplished (mostly) via
+ changes in the parsers as described above.
+ * tests/regression.at (Token definitions, Web2c Actions):
+ Undo most 2005-04-17 change here, too.
+
+2005-07-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix more problems reported by twlevo@xs4all.nl.
+ * tests/cxx-type.at: Don't pipe output of ./types through sed to
+ remove trailing spaces. This loses the exit status of ./types,
+ and isn't needed since ./types shouldn't be emitting trailing
+ spaces.
+ * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
+ as the stack isn't valid in that case.
+
+ * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
+ (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
+ (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
+ Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
+ is used.
+ * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
+ (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
+ (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
+ Likewise.
+
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
+ overly-picky compilers that reject 'char *foo = "bar";'.
+
+ * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
+ to FILE * parameter, not to stderr. This fixes a typo introduced
+ in the 2005-07-12 change.
+
+ * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
+ warnings from GCC 4.
+
+ * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
+ (yyglrShiftDefer, yysplitStack):
+ Remove unused parameters b4_pure_formals. All uses changed.
+ (yyglrShift): Remove unused parameters b4_user_formals.
+ All uses changed.
+ (yyglrReduce): Removed unused parameter yylocp. All uses changed.
+
+2005-07-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ Destructor cleanups and regularization among the three skeletons.
+ * NEWS: Document the behavior changes.
+ * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
+ stack before failing, as the cleanup code will do it for us now.
+ * data/lalr1.cc (yyerrlab): Likewise.
+ * data/glr.c (yyparse): Pop everything off the stack before
+ freeing it, so that destructors get called properly.
+ * data/lalr1.cc (yyreturn): Likewise.
+ * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
+ This is more consistent.
+ * doc/bison.texinfo (Destructor Decl): Mention more reasons
+ why destructors might be called. 1.875 -> 2.1.
+ (Destructor Decl, Decl Summary, Table of Symbols):
+ Some English-language cleanups for %destructor.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+ Add output line for destructor of start symbol.
+ * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
+ because of that same extra output line.
+
+ * NEWS: Document minor wording changes in diagnostics of
+ Bison-generated parsers.
+ * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
+ Remove unused formals. All uses changed.
+ (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
+ (yyparse): Rename yyoverflowlab to yyexhaustedlab.
+ * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
+ Rename yyoverflowab to yyexhaustedlab.
+ When memory exhaustion occurs during syntax-error reporting,
+ report it separately rather than in a single diagnostic; this
+ eases translation.
+ * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
+ (Memory Exhausted): Renamed from Parser Stack Overflow.
+ Revamp wording slightly to prefer "memory exhaustion".
+ * tests/actions.at: "parser stack overflow" -> "memory exhausted".
+
+ * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
+
+ Add i18n support to the GLR skeleton. Partially fix the C++
+ skeleton; a C++ expert needs to finish this. Remove debugging
+ msgids; there's little point to having them translated, since they
+ can be understood only by someone who can read the
+ (English-language) source code.
+
+ Generate runtime-po/bison-runtime.pot automatically, so that we
+ don't have to worry about garbage getting in that file. We'll
+ make sure after the next official release that old msgids don't
+ get lost. See
+ <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
+
+ * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
+ Now auto-generated.
+ * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
+ Fix typos in explanations of the runtime file.
+ * bootstrap: Change gettext keyword from YYI18N to YY_.
+ Use standard Makefile.in.in in runtime-po, since we'll arrange
+ for backward-compatible bison-runtime.po files in a different way.
+ * data/glr.c (YY_): New macro, from yacc.c.
+ (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
+ Translate messages intended for users.
+ (yyreportSyntaxError): Change "virtual memory" to "memory" to match
+ the wording in the other skeletons. We don't know that the memory
+ is virtual.
+ * data/lalr1.cc (YY_): Renamed from _. All uses changed.
+ Use same method that yacc.c uses.
+ Don't translate debugging messages.
+ (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
+ it doesn't work (yet), and requires C++ expertise to fix.
+ * data/yacc.c (YY_): Renamed from YY18N. All uses changed.
+ Move defn to a more logical place, to be consistent with other
+ skeletons.
+ Don't translate debugging messages.
+ Don't assume line numbers fit in unsigned int; use unsigned long fmts.
+ * doc/bison.texinfo: Mention <libintl.h>. Change glibc cross reference
+ to gettext cross reference. Add indexing terms. Mention YYENABLE_NLS.
+ * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
+
+ Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
+ void, not int.
+ * tests/glr-regression.at (Badly Collapsed GLR States):
+ Likewise.
+ (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+ yylex should return 0 at EOF rather than aborting.
+
+ Improve tests for stack overflow in GLR parser.
+ Problem reported by twlevo@xs4all.nl.
+ * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
+ All uses removed.
+ (yyStackOverflow): Just longjmp, but with value 2 so that caller
+ can handle the problem.
+ (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
+ (yyparse): New local variable yyresult to record the result.
+ Use result of setjmp to set it, rather than storing itinto
+ struct.
+ (yyDone): Remove label.
+ (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
+ to mimic yacc.c. Do not discard lookahead if it's EOF (possible
+ if YYABORT is used).
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
+ yyparse status; put status > 1 into diagnostic.
+ Check that status==2 works.
+ * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
+ Use exit status 3 for failure to open (which shouldn't happen).
+
+2005-07-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/conflicts.at (%nonassoc and eof): Don't exit with status
+ 1 on syntax error; just let yyparse do its thing.
+ * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
+ * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
+ (Exploding the Stack Size with Alloca):
+ (Exploding the Stack Size with Malloc):
+ Expect exit status 2, not 1, since the parser is supposed to blow
+ its stack. Problem reported by twlevo@xs4all.nl.
+
+ * data/glr.c (yyparse): Don't assume that the initial calls
+ to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
+ Print a stack-overflow message and fail instead.
+ Initialize the line-number information before creating the stack,
+ so that the stack-overflow message can report line zero safely.
+
+2005-07-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix problems reported by twlevo@xs4all.nl.
+ * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
+ (yyuserMerge): Provide a default case if b4_mergers is empty.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
+ * tests/glr-regression.at
+ (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+ Add casts to pacify C++ compilers.
+ * tests/glr-regression.at (Improper merging of GLR delayed action
+ sets): Declare yylex before using it.
+ * tests/Makefile.am (maintainer-check-g++): Fix a stray
+ $(GXX) that escaped the renaming of GXX to CXX. Remove bogus
+ test for valgrind; valgrind is independent of g++.
+ (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
+ for compatibility with POSIX 1003.1-2001 (if running coreutils).
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
+ Use a destructor, so that we can expand the stack. Change
+ YYSTYPE to char * so that we can free it. Cast result of malloc.
+
+2005-07-13 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
+
+ * data/glr.c (yyuserAction): Fix uninitialized variable that caused
+ a valgrind failure. Problem reported by twlevo@xs4all.nl.
+
+2005-07-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * PACKAGING: New file, suggested by Bruno Haible and taken from
+ similar wording in gettext's PACKAGING file.
+ * NEWS: Mention PACKAGING.
+ * Makefile.am (EXTRA_DIST): Add PACKAGING.
+
+2005-07-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Document recent i18n improvements.
+ * bootstrap: Get runtime translations into runtime-po.
+ Create runtime-po files automatically, if possible.
+ * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
+ * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
+ does not infringe on the user's name space.
+ (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
+ * doc/bison.texinfo (Internationalization): Revamp the English
+ and Texinfo syntax a bit, to try to make it clearer.
+ (Bison Options, Option Cross Key): Mention --print-localedir.
+ * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
+ YYENABLE_NLS. Quote a bit more.
+ * runtime-po/.cvsignore: New file.
+ * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
+ * runtime-po/Rules-quot: Remove; now created by bootstrap.
+ * runtime-po/quot.sed: Likewise.
+ * runtime-po/boldquot.sed: Likewise.
+ * runtime-po/en@quot.header: Likewise.
+ * runtime-po/en@boldquot.header: Likewise.
+ * runtime-po/insert-header.sin: Likewise.
+ * runtime-po/remove-potcdate.sin: Likewise.
+ * runtime-po/Makevars: Likewise.
+ * runtime-po/LINGUAS: Likewise.
+ * runtime-po/de.po: Likewise; we will rely on the translation project
+ to maintain this, so "bootstrap" should get it.
+ * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
+ its value.
+ * src/main.c (main): Bind the bison-runtime domain, too.
+
+2005-07-12 Bruno Haible <bruno@clisp.org>
+
+ * data/yacc.c: Include <libintl.h> when NLS is enabled.
+ (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
+ * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
+ * runtime-po: New directory.
+ * runtime-po/Makefile.in.in: New file, copied from po/, with modified
+ $(DOMAIN).pot-update rule, so that old messages are never dropped.
+ * runtime-po/Rules-quot: New file, copied from po/.
+ * runtime-po/quot.sed: Likewise.
+ * runtime-po/boldquot.sed: Likewise.
+ * runtime-po/en@quot.header: Likewise.
+ * runtime-po/en@boldquot.header: Likewise.
+ * runtime-po/insert-header.sin: Likewise.
+ * runtime-po/remove-potcdate.sin: Likewise.
+ * runtime-po/Makevars: New file.
+ * runtime-po/POTFILES.in: New file.
+ * runtime-po/LINGUAS: New file.
+ * runtime-po/bison-runtime.pot: New file.
+ * runtime-po/de.po: New file.
+ * m4/bison.m4: New file.
+ * Makefile.am (SUBDIRS): Add runtime-po.
+ (aclocaldir, aclocal_DATA): New variables.
+ * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
+ Define aclocaldir.
+ * src/getargs.c (usage): Document --print-localedir option.
+ (PRINT_LOCALEDIR_OPTION): New enum item.
+ (long_options): Add --print-localedir option.
+ (getargs): Handle --print-localedir option.
+ * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
+ (Internationalization): New section.
+
+2005-07-12 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
+ for consistency with the rest of the code.
+ * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
+ Add separators.
+
+2005-07-12 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y: Use %printer instead of YYPRINT.
+
+2005-07-12 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_print): New.
+ * src/symlist.h, src/symlist.c (symbol_list_print): New.
+ * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
+
+2005-07-12 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (b4_syncline): Fix (swap) the definitions of
+ b4_at_dollar and b4_dollar_dollar.
+
+2005-07-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
+ and Pennello's paper.
+
+2005-07-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (yyparse): Undo previous patch. Instead,
+ set yylsp[0] and yyvsp[0] only if the initial action
+ sets yylloc and yylval, respectively.
+
+ * data/yacc.c (yyparse): In the initial action, set
+ yylsp[0] and yyvsp[0] rather than yylloc and yylval.
+ This avoids the use of undefined variables if the initial
+ action does not set yylloc and/or yylval.
+
+2005-07-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
+ * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
+ Remove from CVS. These files are automatically generated.
+ * examples/extexi: Clarify that this file is now part of Bison,
+ not GNU M4, and that it works with any POSIX-compatible Awk.
+ * examples/calc++/Makefile.am (run_extexi): Remove; not used.
+ ($(calc_extracted)): Renamed from $(calc_sources_extracted),
+ so that we also get calc++-parser.yy. Geneate it.
+ Use $(AWK), not gawk, since any conforming Awk will do.
+ Put comment before action, since older 'make' can't handle comment
+ in action.
+ $(BUILT_SOURCES): List all built sources, not just some of them.
+ $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
+ $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
+ $($(calc_sources_generated)): Remove unnecessary test for existence
+ of target. (This had a shell syntax error anyway; a stray "x".)
+ (calc_extracted): List $(srcdir)/calc++-parser.yy, not
+ calc++-parser.yy.
+ * examples/.cvsignore, examples/calc++/.cvsignore: New files.
+
+ * bootstrap (gnulib_modules): Add gettext, now that it's no longer
+ implied by the other modules.
+
+2005-07-06 Akim Demaille <akim@epita.fr>
+
+ Bind examples/calc++ to the package.
+ * examples/calc++/Makefile: Remove, replaced by...
+ * examples/calc++/Makefile.am: ... this new file.
+ * examples/calc++/test: Remove input.
+ * examples/calc++/compile: Remove.
+ * examples/Makefile.am: New.
+ * configure.ac, Makefile.am: Adjust.
+ * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
+
+2005-07-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyFail): Drastically simplify; since the format argument
+ never had any % directives, we can simply pass it to yyerror.
+ (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
+ be modified later, as that is the usual style in glr.c.
+ Problems reported by Paul Hilfinger.
+
+ Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
+ and size overflow errors.
+ * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
+ in case the user prolog sets feature-test macros like _GNU_SOURCE.
+ (YYSIZEMAX): New macro.
+ (yystpcpy): New function, taken from yacc.c.
+ (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
+ (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
+ so that we don't have to maintain their signatures.
+ (yyFail): Check for buffer overflow, by using vsnprintf rather
+ than vsprintf. Allocate a bigger buffer if possible.
+ Report an error if buffer allocation fails.
+ (yyStackOverflow): New function.
+ (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
+ the initialization was successful. It might fail if storage was
+ exhausted.
+ (yyexpandGLRStack): Add more checks for storage allocation failure.
+ Use yyStackOverflow to report failures.
+ (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
+ (yysplitStack, yyprocessOneStack, yyparse, yypstack):
+ Don't assume stack number fits in int.
+ (yysplitStack): Check for storage allocation failure.
+ (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
+ can print diagnostics on storage allocation failure. All callers
+ changed.
+ (yyresolveValue): Use yybool for boolean.
+ (yyreportSyntaxError): Check for size-calculation overflow.
+ This code is taken from yacc.c.
+ (yyparse): Check for storage allocation errors when allocating
+ the initial stack.
+
+2005-07-05 Akim Demaille <akim@epita.fr>
+
+ Extract calc++ from the documentation.
+ * doc/bison.texinfo (Calc++): Add the extraction marks.
+ * examples/extexi: New, from the aborted GNU Programming 2E.
+ Separate the different paragraph of a file with empty lines.
+ * examples/Makefile: Use it to extract the whole calc++ example.
+
+2005-06-24 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
+ class typedefs.
+
+2005-06-22 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (C++ Language Interface): First stab.
+ (C++ Parsers): Remove.
+
+2005-06-22 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yylex_): Honor %lex-param.
+
+2005-06-22 Akim Demaille <akim@epita.fr>
+
+ Start a set of simple examples.
+ * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
+ * examples/calc++/calc++-driver.hh,
+ * examples/calc++/calc++-parser.yy,
+ * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
+ * examples/calc++/compile, examples/calc++/test: New.
+
+2005-06-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
+ extern "C" {}. This fixes a problem reported by Paul Hilfinger,
+ which stems from the 2005-05-27 patch.
+
+2005-06-06 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
+
+ * data/glr.c: Modify treatment of unused parameters to permit use
+ of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
+
+2005-05-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix infringement on user name space reported by Janos Zoltan Szabo.
+ * data/yacc.c (yyparse): strlen -> yystrlen.
+
+2005-05-30 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (_): New.
+ Translate the various messages.
+
+2005-05-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix infringement on user name space reported by Bruno Haible.
+ * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
+ Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
+ the user's name space.
+ (alloca): Include <stdlib.h> to get it, if it's not built in.
+ (YYMALLOC, YYFREE): Define only if needed.
+ (malloc, free): Declare, but only if needed, as this infringes on
+ the user name space.
+
+2005-05-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
+ * lib/bitset.c (bitset_print): Don't assume size_t can be printed
+ with %d format.
+ * lib/ebitset.c (min, max): Undef before defining.
+ * lib/vbitset.c (min, max): Likewise.
+ * lib/subpipe.c (create_subpipe): Save local variables in case
+ vfork clobbers them.
+
+2005-05-24 Bruno Haible <bruno@clisp.org>
+
+ * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
+ error message syntax used by gcc-4.0.
+
+2005-05-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ * README: Mention m4 1.4.3. Remove obsolete advice about
+ Sun Forte Developer 6 update 2, VMS, and MS-DOS.
+
+ * bootstrap: Remove workaround for problem I encountered with
+ gettext 0.14.1; it seems to be fixed now.
+
+2005-05-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.0a.
+
+ * src/files.c: Include "stdio-safer.h"; this fixes a typo in
+ the previous change.
+
+ Various maintainer cleanups.
+ * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
+ conftest*, for benefit of CVS commands run at the same time as
+ "configure". Add build-aux, since "bootstrap" now creates it and
+ its subfiles.
+ * Makefile.cfg (move_if_change): Remove.
+ * Makefile.maint: Remove the update stuff; we now use "bootstrap".
+ (ftp-gnu, www-gnu, move_if_change, local_updates, update):
+ (po_repo, do-po-update, po-update, wget_files, get-targets):
+ (config.guess-url_prefix, config.sub-url_prefix):
+ (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
+ (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
+ ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
+ Remove.
+ * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
+ this is now the recommended name.
+ * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
+ depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
+ ylwrap. These files now go into build-aux.
+ * config/move-if-change: Remove.
+ * config/prev-version.txt: Bump from 1.75 to 2.0.
+
+ * bootstrap: Add stdio-safer, unistd-safer modules.
+ Remove m4/glibc2.m4 (introduced by latest gnulib, but
+ we don't need it).
+ * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
+ fopen-safer.c, stdio-safer.h, unistd-safer.h.
+ * lib/subpipe.c: Include "unistd-safer.h".
+ (create_subpipe): Make sure all the newly-created
+ file descriptors are > 2, so that diagnostics don't
+ get sent down them (which might cause Bison to hang, in theory).
+ * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
+ * src/files.c (xfopen): Use fopen_safer, not fopen.
+
+ * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
+ yesterday's yacc.c fix.
+
+2005-05-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c, data/lalr1.cc: Update copyright date.
+
+ Fix a destructor bug reported by Wolfgang Spraul in
+ <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
+ * data/yacc.c (yyabortlab): Don't call destructor, and
+ don't set yychar to EMPTY.
+ (yyoverflowlab): Don't call destructor.
+ (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
+ * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
+ since we no longer output the message "discarding lookahead token
+ end of input ()".
+
+2005-05-20 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
+
+ * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
+ fix a small glitch in debugging output.
+ (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
+ after YY_SYMBOL_PRINT where needed.
+
+ (struct yyGLRState): Add some comments.
+ (struct yySemanticOption): Add some comments.
+ (union yyGLRStackItem): Add comment.
+
+ (yymergeOptionSets): Correct this to properly perform the union,
+ avoiding infinite reported by Michael Rosien.
+ Update comment.
+
+ * tests/glr-regression.at: Add test for GLR merging error reported
+ by M. Rosien.
+
+2005-05-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
+ Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
+ README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
+ data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
+ data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
+ doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
+ lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
+ lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
+ lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
+ lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
+ lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
+ lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
+ lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
+ lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
+ m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
+ src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
+ src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
+ src/derives.h, src/files.c, src/files.h, src/getargs.c,
+ src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
+ src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
+ src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
+ src/output.h, src/parse-gram.c, src/parse-gram.h,
+ src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
+ src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
+ src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
+ src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
+ src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
+ src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
+ src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
+ tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
+ tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
+ tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
+ tests/reduce.at, tests/regression.at, tests/sets.at,
+ tests/synclines.at, tests/testsuite.at, tests/torture.at:
+ Update FSF postal mail address.
+
+2005-05-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
+ Problem reported by Ralf Menzel.
+
+2005-05-01 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/actions.at: Test that stack overflow invokes destructors.
+ From Marcus Holland-Moritz.
+ * data/yacc.c (yyerrlab): Move the code that destroys the stack
+ from here....
+ (yyreturn): to here. That way, destructors are called properly
+ even if the stack overflows, or the user calls YYACCEPT or
+ YYABORT. Stack-overflow problem reported by Marcus Holland-Moritz.
+ (yyoverflowlab): Destroy the lookahead.
+
+2005-04-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
+
+2005-04-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Bison-generated C parsers no longer quote literal strings
+ associated with tokens.
+ * src/output.c (prepare_symbols): Don't escape strings,
+ since users don't want to see C escapes.
+ * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
+ in diagnostics.
+ * tests/input.at (Torturing the Scanner): Likewise.
+ * tests/regression.at (Token definitions, Web2c Actions): Likewise.
+
+2005-04-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
+ the data size is known to be too small and we can't increase it.
+ This works around an HP-UX 11.00 glitch reported by Andrew Benham.
+
+2005-04-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/parse-gram.y: Include quotearg.h.
+ (string_as_id): Quote $1 before using it as a key, since the
+ lexer no longer quotes it for us.
+ (string_content): Don't strip quotes, since lexer no longer
+ quotes it for us.
+ * src/scan-gram.l: Include quotearg.h.
+ ("\""): Omit quote.
+ ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
+ a key, since the rest of the lexer doesn't quote it.
+ * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
+ * tests/regression.at (Token definitions): Check for backslashes
+ in token strings.
+
+ * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
+ (YYSIZE_T): Define to unsigned long int when using an older compiler.
+ (yyparse): Revamp code to generate long syntax error message, to
+ make it easier to translate, and to avoid problems with arithmetic
+ overflow. Change "virtual memory" to "memory" in diagnostic, since
+ we don't know whether the memory is virtual.
+
+2005-04-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Bison-generated C parsers now use the _ macro to
+ translate strings.
+ * data/yacc.c (_) [!defined _]: New macro.
+ All English strings wrapped inside this macro.
+ * doc/bison.texinfo (Bison Parser): Document _.
+ * po/POTFILES.in: Include src/parse-gram.c, since it now
+ includes translateable strings that parse-gram.y doesn't.
+
+2005-04-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/symtab.c (symbol_make_alias): Call symbol_type_set,
+ reverting the 2004-10-11 change to this function.
+ (symbol_check_alias_consistency): Don't call symbol_type_set
+ if the type name is already correct.
+ * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
+
+2005-03-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/regression.at (Token definitions): Don't use a token named
+ c, as that generates a "#define c ..." that runs afoul of buggy
+ stdlib.h that uses the identifier c as a member of struct
+ drand48_data. Problem reported by Horst Wente.
+
+2005-03-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap: Change translation URL from
+ http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
+ http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
+ redirection glitches. Problem reported by twlevo@xs4all.nl.
+
+2005-03-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
+ after operands; POSIX says this isn't portable for the c99 command.
+
+2005-03-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/glr-regression.at (glr-regr2a.y): Try to dump core
+ immediately if a data overrun has occurred; this may help us track
+ down what may be a spurious failure on MacOS.
+
+2005-03-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ Respond to problems reported by twlevo@xs4all.nl.
+
+ * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
+
+ * src/vcg.h: Comment fix.
+ * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
+ (G_CMAX): Change to -1 instead of INT_MAX.
+
+ * data/yacc.c (yyparse): Omit spaces before #line.
+
+2005-03-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/tables.c (state_number_to_vector_number): Put it inside an
+ "#if 0", since it's not currently used. Problem reported by
+ Roland McGrath.
+
+2005-03-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/output.c (escaped_output): Renamed from
+ escaped_file_name_output, since we now use it for symbol tags as
+ well. All uses changed.
+ (symbol_destructors_output, symbol_printers_output):
+ Escape symbol tags too.
+ Problem reported by Matyas Forstner in
+ <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
+
+ * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
+ not needed.
+ * src/output.c (user_actions_output, token_definitions_output,
+ symbol_destructors_output, symbol_printers_output): Likewise.
+ * src/reader.c (prologue_augment): Likewise.
+ * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
+
+ * src/vcg.c (output_edge): Don't quote linestyle arg.
+ Problem reported by twlevo@xs4all.nl.
+
+2005-02-28 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
+ example, reported by Derek M Jones. Also, make the example even
+ more outrageous, to better illustrate how bad the problem is.
+
+2005-02-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
+ putsym. Typo reported by Sebastian Piping.
+
+2005-02-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Language and Grammar): some -> same
+ (Epilogue): int he -> in the
+ Typos reported by Sebastian Piping via Justin Pence.
+
+2005-02-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/glr-regression.at (Improper handling of embedded actions
+ and dollar(-N) in GLR parsers): Renamed from "Improper handling of
+ embedded actions and $-N in GLR parsers", work around an Autoconf bug
+ with dollar signs in test names.
+ * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
+ for a similar reason.
+
+2005-01-28 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
+ wants to redefine G_VIEW.
+
+2005-01-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/vcg.c (get_view_str): Remove case for normal_view.
+ Problem reported by twlevo@xs4all.nl.
+
+2005-01-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
+ Problem reported by twlevo@xs4all.nl.
+
+ * doc/bison.texinfo: Change @dircategory from "GNU programming
+ tools" to "Software development". Requested by Richard Stallman
+ via Karl Berry.
+
+2005-01-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
+ Problem reported by twlevo@xs4all.nl.
+
+2005-01-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
+ keyword; it's not needed with modern compilers, and it doesn't
+ affect correctness with older compilers. Suggested by
+ twlevo@xs4all.nl.
+
+2005-01-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyuserAction): Add "default: break;" case to pacify
+ gcc -Wswitch-default.
+ * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
+ * data/yacc.c (yyparse): Likewise.
+
+2005-01-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
+ already. Let config.h define any nonstandard values.
+
+2005-01-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
+ for the benefit of slower hosts. Problem reported by
+ Nelson H. F. Beebe.
+
+2005-01-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
+ being defined and not used.
+ * data/lalr1.cc (yyparse): Likewise.
+ Use "if (false)" rather than "if (0)".
+
+2005-01-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ * TODO: Mention that we should allow NUL bytes in tokens.
+
+2005-01-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/scan-skel.l (<<EOF>>): Don't close standard output.
+ Problem reported by Hans Aberg.
+
+2005-01-01 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/getargs.c (version): Happy new year; update overall
+ program copyright date from 2004 to 2005.
+
+ * src/scan-skel.l ("@output ".*\n): Don't close standard output.
+ Problem reported by Hans Aberg.
+ * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
+ (Output file names.): Add a test for the case when standard output
+ is closed.
+
+2004-12-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
+ to fix an oversight in the Bison 2.0 manual.
+
+2004-12-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 2.0. Reformat the existing news items since
+ 1.875, so that related items are grouped together.
+ * configure.ac (AC_INIT): Bump version to 2.0.
+ * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
+
+ * tests/torture.at (Exploding the Stack Size with Alloca): Set
+ YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
+ otherwise, we're not testing alloca. Unfortunately there's no
+ simple way to consult HAVE_ALLOCA here.
+
+ * data/lalr1.cc (yydestruct_): Pacify unused variable warning
+ for yymsg, too.
+
+ * src/LR0.c (new_itemsets): Use memset rather than zeroing by
+ hand. This avoids a warning about comparing int to size_t when
+ GCC warnings are enabled.
+
+2004-12-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Bison-generated parsers no longer default to using the
+ alloca function (when available) to extend the parser stack, due
+ to widespread problems in unchecked stack-overflow detection.
+ * data/glr.c (YYMAXDEPTH): Remove undef when zero. It's the user's
+ responsibility to set it to a positive value. This lets the user
+ specify a value that is not a preprocessor constant.
+ * data/yacc.c (YYMAXDEPTH): Likewise.
+ (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
+ * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
+ to be a compile-time constant. However, explain the constraints on it.
+ Also, explain the constraints on YYINITDEPTH.
+ (Table of Symbols): Explain that alloca is no longer the default.
+ Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
+ to 1.
+
+ * doc/bison.texinfo (Location Default Action): Mention that n must
+ be zero when k is zero. Suggested by Frank Heckenbach.
+
+2004-12-22 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
+ (parser::state_type, parser::semantic_type, parser::location_type):
+ Private, not public.
+ (parser::parse): Return ints, not bool.
+ Returning a bool introduces a problem: 0 corresponds to false, and
+ it seems weird to return false on success. Returning true changes
+ the conventions for yyparse.
+ Alternatively we could return void and send an exception.
+ There is no clear consensus (yet?).
+ (state_stack, semantic_stack, location_stack): Rename as...
+ (state_stack_type, semantic_stack_type, location_stack_type): these.
+ Private, not public.
+ * tests/c++.at: New.
+ * tests/testsuite.at, tests/Makefile.am: Adjust.
+
+2004-12-21 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (parser::parse): Return a bool instead of an int.
+
+2004-12-21 Akim Demaille <akim@epita.fr>
+
+ Don't impose std::string for filenames.
+
+ * data/lalr1.cc (b4_filename_type): New.
+ (position::filename): Use it.
+ (parser.hh): Move the inclusion of stack.hh and location.hh below
+ the user code, so that needed headers for the filename type can be
+ included first.
+ Forward declare them before the user code.
+ * tests/Makefile.am (check-local, installcheck-local): Pass
+ TESTSUITEFLAGS to the TESTSUITE.
+
+2004-12-20 Akim Demaille <akim@epita.fr>
+
+ Use more STL like names: my_class instead of MyClass.
+
+ * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
+ (SemanticStack, SemanticType, StateStack, StateType)
+ (TokenNumberType, Stack, Slice, Traits, Parser::location)
+ (Parser::value): Rename as...
+ (location_stack, location_type, rhs_number_type, semantic_stack)
+ (semantic_type, state_stack, state_type, token_number_type, stack)
+ (slice, traits, parser::yylloc, parser::yylval): these.
+
+ * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
+
+2004-12-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
+ * data/yacc.c (YYLLOC_DEFAULT): Likewise.
+
+2004-12-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ Remove uses of 'short int' and 'unsigned short int'. This raises
+ some arbitrary limits. It uses more memory but nowadays that's
+ not much of an issue.
+
+ This change does not affect the generated parsers; that's a different
+ task, as some users will want to conserve memory there.
+
+ Ideally we should use size_t to represent all object counts, and
+ something like ptrdiff_t to represent signed differences of object
+ counts; but that will require more code-cleanup than I have the
+ time to do right now.
+
+ * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
+ Use size_t, not int or short int, to count objects.
+ * src/closure.c (nritemset, closure): Likewise.
+ * src/closure.h (nritemset, closure): Likewise.
+ * src/nullable.c (nullable_compute): Likewise.
+ * src/print.c (print_core): Likewise.
+ * src/print_graph.c (print_core): Likewise.
+ * src/state.c (state_compare, state_hash): Likewise.
+ * src/state.h (struct state): Likewise.
+ * src/tables.c (default_goto, goto_actions): Likewise.
+
+ * src/gram.h (rule_number, rule): Use int, not short int.
+ * src/output.c (prepare_rules): Likewise.
+ * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
+ errs, reductions): Likewise.
+ * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
+ Likewise.
+ * src/tables.c (vector_number, tally, action_number,
+ ACTION_NUMBER_MINIMUM): Likewise.
+ * src/output.c (muscle_insert_short_int_table): Remove.
+
+2004-12-17 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Extensive Doxygenation.
+ (error_): Rename as...
+ (error): this, since it is visible to the user.
+ Adjust callers.
+ (Parser::message): Now an automatic variable from...
+ (Parser::yyreport_syntax_error_): here.
+ * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
+ Parser::error.
+ * tests/input.at: Escape $.
+
+2004-12-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
+ Parenthesize rhs to avoid obscure problems with mistakes like
+ "foo$$bar = foo$1bar;". Problem reported by twlevo at xs4all.
+ * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
+ b4_rhs_location): Likewise.
+ * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
+ b4_rhs_location): Likewise.
+
+2004-12-16 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
+ yacc.c: be sure to stay within yycheck_.
+ * tests/actions.at: Re-enable C++ tests.
+
+2004-12-16 Akim Demaille <akim@epita.fr>
+
+ * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
+ real.
+
+2004-12-16 Akim Demaille <akim@epita.fr>
+
+ Use #define to handle the %name-prefix.
+
+ * data/glr.c, data/yacc.c: Comment changes.
+ * data/lalr1.cc (yylex): Use #define to select the name of yylex,
+ so that one can refer to yylex in the parser file, and have it
+ renamed, as is the case with other skeletons.
+
+2004-12-16 Akim Demaille <akim@epita.fr>
+
+ Move lalr1.cc internals into yy*.
+
+ * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
+ (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
+ (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
+ (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
+ (empty_, final_, terror_, errcode_, ntokens_)
+ (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
+ (looka_, ilooka_, error_range_, nerrs_):
+ Rename as...
+ (yysemantic_stack_, yylocation_stack_, yystate_stack_)
+ (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
+ (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
+ (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
+ (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
+ (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
+ (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
+ (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
+ these.
+
+2004-12-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix some problems reported by twlevo at xs4all.
+ * src/symtab.c (symbol_new): Report an error if the input grammar
+ contains too many symbols. This is better than calling abort() later.
+ * src/vcg.h (enum layoutalgorithm): Remove. All uses removed.
+ (struct node, struct graph):
+ Rename member expand to stretch. All uses changed.
+ (struct graph): Remove member layoutalgorithm. All uses removed.
+ * src/vcg.c (get_layoutalgorithm_str): Remove. All uses removed.
+ * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
+ All uses changed.
+ (N_STRETCH): Rename from N_EXPAND. All uses changed.
+
+2004-12-15 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Normalize /** \brief ... */ to ///.
+ Add more Doxygen comments.
+ (symprint_, stack_print_, reduce_print_, destruct_, pop)
+ (report_syntax_error_, translate_): Rename as...
+ (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
+ (yypop_, yyreport_syntax_error_, yytranslate_): this.
+
+2004-12-15 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (lex_): Rename as...
+ (yylex_): this.
+ Move the trace here.
+ Take the %name-prefix into account.
+ Reported by Alexandre Duret-Lutz.
+
+2004-12-15 Akim Demaille <akim@epita.fr>
+
+ Simplify the C++ parser constructor.
+
+ * data/lalr1.cc (debug_): Rename as...
+ (yydebug_): so that the parser's internals are always in the yy*
+ pseudo namespace.
+ Adjust uses.
+ (b4_parse_param_decl): Remove the leading comma as it is now only
+ called as unique argument list.
+ (Parser::Parser): Remove the constructor accepting a location and
+ an initial debugging level.
+ Remove from the other ctor the argument for the debugging level.
+ (debug_level_type, debug_level, set_debug_level): New.
+
+ * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
+ constructor calls.
+
+2004-12-15 Akim Demaille <akim@epita.fr>
+
+ Remove b4_root related material: failure experiment
+ (which goal was to allow to derive from a class).
+
+ * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
+ definitions and uses.
+
+2004-12-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
+ not 2, since it's not portable to subtract 1 from the start of an
+ array. The new item 0 is never set or used. All uses changed.
+
+ (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
+ the default definition of YYLLOC_DEFAULT. Problem reported
+ by Frank Heckenbach.
+
+2004-12-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (YYRHSLOC): Don't have two definitions, one for
+ the normal case and one for the error case. Just use the
+ first one uniformly. Problem reported by Frank Heckenbach.
+ (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
+ use exactly the same macro in both places.
+ (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
+ so that the normal-case YYRHSLOC works for the error case too.
+ All uses changed.
+ * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
+ (YYLLOC_DEFAULT): Use the same macro as glr.c.
+ * doc/bison.texinfo (Location Default Action): Don't claim that
+ we have an array of locations. Use the same macro for both glr
+ and lalr parsers. Mention YYRHSLOC. Mention what happens when
+ the index is 0.
+
+2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ * HACKING: Update email addresses to send announcements to.
+
+ * configure.ac (AC_INIT): Bump version to 1.875f.
+
+2004-12-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 1.875e.
+ * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
+
+ * src/scan-skel.l: Include "complain.h", for "fatal".
+
+ * src/relation.h (relation_print, relation_digraph):
+ Relation sizes are of type relation_node, not size_t (this is
+ merely a doc fix, since the two types are equivalent).
+ (relation_transpose): Relation sizes are of type relation_node,
+ not int.
+ * src/relation.c: Likewise.
+ (top, infinity): Now of type relation_node, not int.
+ (traverse, relation_transpose): Use relation_node, not int.
+
+ * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
+ with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
+ (yyparse): Remove unused local introduced in 2004-10-25 patch.
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
+ specifying whether the test should be skipped. Use it tp
+ specify that the [%defines %skeleton "lalr1.cc"] tests currently
+ fail on some hosts, and should be skipped.
+
+2004-12-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/system.h (CALLOC, MALLOC, REALLOC): Remove. All callers
+ changed to use xcalloc, xnmalloc, xnrealloc, respectively,
+ unless otherwise specified below.
+
+ * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
+ to allocate kernel_base, kernel_items, kernel_size, since
+ they needn't be initialized to 0.
+ (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
+ * src/closure.c (new_closure): Likewise, for itemset.
+ * src/derives.c (derives_compute): Likewise, for delts, derives, q.
+ * src/lalr.c (set_goto_map): Likewise, for temp_map.
+ (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
+ (build_relations): Likewise for edge, states1, includes.
+ * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
+ * src/reader.c (packgram): Likewise, for ritem, rules.
+ * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
+ * src/relation.c (relation_digraph): Likewise for VERTICES.
+ (relation_transpose): Likewise for new_R, end_R.
+ * src/symtab.c (symbols_token_translations_init): Likewise for
+ token_translations.
+ * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
+ (token_actions): Likewise for yydefact, actrow, conflrow,
+ conflict_list.
+ (save_column): Likewise for froms[symno], tos[symno].
+ (goto_actions): Likewise for state_count.
+ (pack_table): Likewise for base, pos, check.
+ (tables_generate): Likewise for width.
+
+ * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
+ for initial core. Just have a separate core, so we needn't worry
+ about whether kernel_size and kernel_base are initialized.
+
+ * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
+ kernel_size, kernel_items): Remove unnecessary initialization.
+ * src/conflicts.c (conflicts): Likewise.
+ * src/derives.c (derives): Likewise.
+ * src/muscle_tablc (muscle_insert): Likewise.
+ * src/relation.c (relation_digraph): Likewise.
+ * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
+ conflrow, conflict_table, conflict_list, table, check):
+ Likewise.
+
+ * src/closure.c (new_closure): Arg is of type unsigned int, not int.
+ This is because all callers pass unsigned int.
+ * src/closure.h (new_closure): Likewise.
+
+ * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
+ (build_relations): Initialize includes[i] in all cases.
+ * src/reader.c (packgram): Always initialize rules[ruleno].prec
+ and rules[ruleno].precsym. Initialize members in order.
+ * src/relation.c (relation_transpose): Always initialize new_R[i]
+ and end_R[i].
+ * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
+
+ * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
+ conflict_list[0] was always 0, but now it isn't initialized.
+
+ * src/table.c (table_grow): When conflict_table grew, the grown
+ area wasn't cleared. Fix this.
+
+ * lib/.cvsignore: Add strdup.c, strdup.h.
+ * m4/.cvsignore: Add strdup.m4.
+
+2004-12-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
+ * src/lalr.c (set_goto_map): Don't allow ngotos to equal
+ GOTO_NUMBER_MAXIMUM, since we occasionally compute
+ ngotos + 1 without checking for overflow.
+ (build_relations): Use END_NODE, not -1, to denote end of edges.
+ * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
+ build_relations): Use goto_number, not int, for goto numbers.
+ * src/tables.c (save_column, default_goto): Likewise.
+
+2004-11-23 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
+ of #defining from yystype.
+ Don't typedef yystype, C++ does not need it.
+ This lets it possible to forward declare it as union.
+
+2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ * bootstrap (gnulib_modules): Add extensions.
+ Problem reported by Jim Meyering.
+
+2004-11-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
+ src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
+ src/system.h, src/tables.c: XFREE -> free, to accommodate
+ recent change to gnulib xalloc.h.
+ Problem reported by Jim Meyering.
+
+2004-11-17 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
+
+2004-10-28 Akim Demaille <akim@epita.fr>,
+ Alexandre Duret-Lutz <adl@gnu.org>
+
+ * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
+ changes.
+ (YYCDEBUG): Adjust.
+ Use it instead of cdebug_.
+ (Parser::debug_stream, Parser::set_debug_stream): New.
+ (Parser::symprint_): Define cdebug_ for temporary backward
+ compatibility.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
+ debug_stream ().
+
+2004-11-17 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
+ * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
+ * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
+
+2004-10-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yyloc_default): Remove; not used.
+ Problem reported by Frank Heckenbach.
+
+2004-10-25 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (YYRHSLOC): Move its definition next to its uses.
+ Introduce another definition to address simple location arrays.
+ (yyGLRStack): New member: yyerror_range.
+ (yyrecoverSyntaxError, yyparse): Update it.
+ (yyrecoverSyntaxError): Use it when shifting the error token to
+ have an accurate range, equivalent to the one computed by both
+ yacc.c and lalr1.cc.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
+ that column numbers start at column 0, as per GNU Coding
+ Standards, the others tests, and the doc.
+ (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
+ Adjust to the above change (first column is 0).
+ And adjust the location of the "<error>", now covering the whole
+ line.
+
+2004-10-22 Akim Demaille <akim@epita.fr>
+ and Paul Eggert <eggert@cs.ucla.edu>
+
+ Remove some arbitrary limits on goto numbers and relations.
+ * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
+ initial values, since they're never used.
+ (set_goto_map): ngotos is now unsigned, so test for overflow
+ by seeing whether it wraps around to zero.
+ * src/lalr.h (goto_number): Now size_t, not short int.
+ (GOTO_NUMBER_MAXIMUM): Remove.
+ * src/relation.c (relation_print, traverse, relation_transpose):
+ Check for END_NODE rather than looking at sign.
+ * src/relation.h (END_NODE): New macro.
+ (relation_node): Now size_t, not short int.
+
+2004-10-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo (Language and Grammar): In example, "int" is a
+ keyword, not an identifier. Problem reported by Baron Schwartz in
+ <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
+
+2004-10-11 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (symbol_check_alias_consistency): Also check
+ type names, destructors, and printers.
+ Reported by Alexandre Duret-Lutz.
+ Recode the handling of associativity and precedence in terms
+ of symbol_precedence_set.
+ Accept no redeclaration at all, not even equal to the previous
+ value.
+ (redeclaration): New.
+ Use it to factor redeclaration complaints.
+ (symbol_make_alias): Don't set the type of the alias, let
+ symbol_check_alias_consistency do it as for other features.
+ * src/symtab.h (symbol): Add new member prec_location, and
+ type_location.
+ * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
+ * tests/input.at (Incompatible Aliases): New.
+
+2004-10-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ .cvsignore fixes to accommodate gnulib changes,
+ and the practice of naming build directories "_build".
+ * .cvsignore: Add "_*". Sort.
+ * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
+ * m4/.cvsignore: Add "*_gl.m4".
+
+2004-10-06 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (add_param): Fix the truncation of trailing
+ spaces.
+
+2004-10-05 Akim Demaille <akim@epita.fr>
+
+ In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
+ whether the reducion was empty or not. This leaves room to
+ improve the use of YYLLOC_DEFAULT in such a case.
+ lalr1.cc is still experimental, so changing this is acceptable.
+ And finally, there are probably not many users who changed the
+ handling of locations in GLR, so changing is admissible too.
+
+ * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
+ empty reduction, set @$ to an empty location ending the previously
+ stacked symbol.
+ Adjust uses to make sure the code is triggered on empty
+ reductions.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
+ expected output: empty reductions have empty locations.
+
+2004-09-29 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Move towards a more standard C++ coding style
+ for templates: Class < T > -> Class<T>.
+
+2004-09-29 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Reinstall the former ctor, for sake of
+ compatibility, but warn it will be removed.
+ Move towards a more standard C++ coding style (i.e., type *var ->
+ type* var).
+
+2004-09-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/parse-gram.y (add_param): Rewrite to avoid strchr,
+ since it's less likely to work if NULs are involved in the future.
+
+2004-09-27 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
+
+2004-09-27 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (b4_parse_param_decl_1): New.
+ (b4_parse_param_decl): Use it to have different names between attribute
+ and argument names.
+ (b4_cc_constructor_call): Likewise.
+
+2004-09-24 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (add_param): Strip the leading and trailing
+ blanks from a formal argument declaration.
+ (YY_LOCATION_PRINT): New.
+
+2004-09-24 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
+ after the location.
+
+2004-09-24 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Table of Symbols): Sort.
+
+2004-09-21 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
+ the useless parentheses.
+ Suggested by Paul Eggert.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ Let the initial-action act on the look-ahead, and use it for the
+ "initial push" (corresponding to an hypothetical beginning-of-file).
+ And let lalr1.cc honor %initial-action.
+
+ * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
+ example.
+ * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
+ (Parser::Parser): Remove the ctor that used to initialize it.
+ (Parser::parse): Like in the other skeletons, issue the "starting
+ parse" message before any action.
+ Honor %initial-action.
+ Initialize the stacks with the lookahead.
+ * data/yacc.c: Let $$ and @$ in %initial-action designate the
+ look-ahead.
+ Push them in the stacks.
+ * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Initial Action Decl): New.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
+ clearer criterion to define it.
+ (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
+ When reducing on an empty RHS, use the latest stacked location as
+ location.
+ yylloc is not always available.
+ * data/glr.c: Likewise.
+ Also, honor initial-actions.
+
+2004-09-20 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (YY_LOCATION_PRINT): New.
+ Define when we know YYLTYPE's structure, i.e., when the default
+ YYLLOC_DEFAULT is used.
+ * data/c.m4 (b4_yysymprint_generate): Use it.
+ * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
+ value of the result.
+ (error_start_): Replace with...
+ (error_range_): this location array.
+ This allows to replace code relying on the implementation of
+ locations by portable code.
+ * data/yacc.c (yylerrsp): Replace with...
+ (yyerror_range): this.
+ Every time a token is popped, update yyerror_range[0], to have an
+ accurate location for the error token.
+ * data/glr.c (YY_LOCATION_PRINT): New.
+ (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
+ deference a pointer.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
+ report the location in %printers.
+
+ * src/scan-skel.l: Instead of abort, report error messages to ease
+ understanding skeleton scanning failures.
+
+2004-09-16 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
+ (iterator, const_iterator): these, to be more in the C++ spirit.
+ Also, return reverse iterators so that when displaying the stack
+ we display its bottom first.
+ (Parser::stack_print_, Parser::reduce_print_): Match the messages
+ from yacc.c.
+ We should probably use vector here though.
+
+2004-09-16 Akim Demaille <akim@epita.fr>
+
+ Have more complete shift traces.
+
+ * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
+ to report Shifts instead of ad hoc YYDPRINTF invocations,
+ including for the error token.
+ * data/lalr1.cc (symprint_): Output the location.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
+ output the location within the %printer.
+ Activate GLR tests, at least to make sure they compile properly.
+ They still don't pass though.
+ * tests/calc.at: Adjust expect verbose output, since now "Entering
+ state..." is on a different line than the "Shifting" message.
+
+2004-09-08 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
+ Bison directive from the Bison file to the invocation of this
+ macro, so that these directives are passed to
+ AT_BISON_OPTION_PUSHDEFS to get correct help macros.
+ Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
+ Move the AT_SETUP/AT_CLEANUP outside, to report as test title
+ the extra Bison directives instead of the whole series.
+ Change the grammar so that there are recoverable errors, and
+ unrecoverable errors. Now we can have the parser give up before
+ consuming the whole input. As a result we now can observe that
+ the lookahead is freed when needed.
+ Change the parser source to parse argv[1] instead of a hard coded
+ string.
+ Simplify yylex, and give a value and location to EOF.
+ Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
+ passed directives already coded in the file.
+ Add some tests to check the location of "error".
+ For some tests, the C++ parser is correct, and not yacc.c.
+ For other tests, they provide different, but unsatisfying, values,
+ so keep the C++ value so that at least one parser is "correct"
+ according to the test suite.
+ (Actions after errors): Remove, this is subsumed by the
+ AT_CHECK_PRINTER_AND_DESTRUCTOR series.
+
+2004-09-06 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Adjust the indentation of the labels.
+ (Parser::pop): New.
+ Use it.
+
+2004-09-06 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
+ argument, an informative message.
+ Call YY_SYMBOL_PRINT.
+ Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
+ * data/lalr1.cc (destruct_): Likewise.
+ In addition, no longer depend on b4_yysymprint_generate and
+ b4_yydestruct_generate to generate these functions, do it "by
+ hand".
+
+2004-09-03 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
+ invoked, yydestruct the lookahead.
+ * tests/calc.at (Calculator $1): Update the expected lengths of
+ traces: there is an added line for the discarded lookahead.
+ * doc/bison.texinfo (Destructor Decl): Some rewording.
+ Define "discarded" symbols.
+
+2004-09-02 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (translate_, destruct_): No reason to be static.
+
+2004-09-02 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
+ (YYDSYMPRINTF): Rename as...
+ (YY_SYMBOL_PRINT): this.
+ * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
+ two.
+ Use it instead of direct symprint_ calls.
+ (yybackup): Tweak the "Now at end of input" case to match yacc.c's
+ one.
+
+2004-09-02 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (b4_yysymprint_generate): New.
+ (symprint_): New member function, defined when YYDEBUG.
+ Use it consistently instead of token/nterm debugging output by
+ hand.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
+ %printer calls to use cdebug_ when using lalr1.cc.
+
+2004-08-30 Florian Krohm <florian@edamail.fishkill.ibm.com>
+
+ * data/glr.c: Guard the declarations of yypstack and yypdumpstack
+ with #ifdef YYDEBUG.
+
+2004-08-26 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Implementing Loops): Rename as...
+ (Implementing Gotos/Loops): this.
+
+2004-08-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ Adjust to latest gnulib.
+ * bootstrap (gnulib_modules): Add xalloc-die.
+ Set LC_ALL=C so that file names sort consistently.
+ Prefer the gnulib copies of gettext.m4, glibc21.m4,
+ inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
+ uintmax_t.m4, ulonglong.m4.
+ (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
+ po.m4 since we are now using _gl.m4 instead.
+
+2004-08-10 Florian Krohm <florian@edamail.fishkill.ibm.com>
+
+ * src/scan-action.l: Remove. Scanning of semantic actions is
+ handled in scan-gram.l.
+
+2004-08-07 Florian Krohm <florian@edamail.fishkill.ibm.com>
+
+ * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
+
+ * src/location.h (struct): The file member is a uniqstr.
+ (equal_boundaries): Use UNIQSTR_EQ for comparison.
+
+2004-07-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix bug with non-%union parsers that have printers or destructors,
+ which led to a Bison core dump. Reported by Peter Fales in
+ <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
+
+ * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
+ * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
+ not to our own type.
+ * src/output.c (symbol_destructors_output, symbol_printers_output):
+ Don't assume %union.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
+ AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
+ UNION-FLAG. All callers changed.
+ (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
+ Use type char, not unsigned int, when declaring an array of char;
+ this lets us remove a cast.
+ (Printers and Destructors): Add non-%union test cases.
+
+2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/bison.texinfo: Minor editorial changes, mostly to the new
+ GLR writeups. E.g., avoid frenchspacing and the future tense,
+ change "lookahead" to "look-ahead", and change "wrt" to "with
+ respect to".
+
+2004-06-21 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
+
+ * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
+ New sections, split off from the GLR Parsers section. Put the new
+ Simple GLR Parser near the start of the GLR section, for clarity.
+ Rewrite connective text.
+
+2004-06-21 Frank Heckenbach <frank@g-n-u.de>
+
+ * doc/bison.texinfo (Simple GLR Parsers): New section.
+
+2004-06-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS, TODO, doc/bison.texinfo:
+ Use "look-ahead" instead of "lookahead", to be consistent.
+ * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
+ while we're fixing "look-ahead".
+ * src/conflicts.c (shift_set): Renamed from shiftset.
+ (look_ahead_set): Renamed from lookaheadset.
+ * src/print.c: Likewise.
+ * src/getargs.c (report_args): Add "look-ahead" as the new canonical
+ name for "lookahead".
+ (report_types, usage): Likewise.
+ * src/getargs.h (report_look_ahead_tokens): Renamed from
+ report_lookaheads.
+ * src/lalr.c (compute_look_ahead_tokens): Renamed from
+ compute_lookaheads.
+ (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
+ (look_ahead_tokens_print): Renamed from lookaheads_print.
+ * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
+ state_rule_lookaheads_print.
+ * src/state.h: Likewise.
+ (reductions.look_ahead_tokens): Renamed from lookaheads.
+ * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
+ AT_DATA_LOOKAHEADS_GRAMMAR.
+
+2004-06-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ * README: Update location of patched M4 distribution.
+
+2004-05-30 Albert Chin-A-Young <china@thewrittenword.com>
+
+ Don't assume the C++ compiler takes the same arguments as the C compiler
+ (trivial change).
+ * configure.ac (O0CXXFLAGS): New var.
+ * tests/atlocal.in (CXXFLAGS): Use it.
+
+2004-05-29 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix some "make check" problems with C++ reported by
+ Albert Chin-A-Young for Tru64 C++ in this thread:
+ http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
+
+ * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+ Output to a .cc file for C++, not to a .c file.
+ * tests/calc.at (AT_CHECK_CALC): Likewise.
+ * tests/regression.at (AT_CHECK_DANCER): Likewise.
+ * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
+
+2004-05-28 Albert Chin-A-Young <china@thewrittenword.com>
+
+ * tests/calc.at, tests/actions.at: Workaround for SGI
+ C++ compiler. (trivial change)
+
+2004-05-27 Paul Eggert <eggert@cs.ucla.edu>
+
+ Spent a few hours checking out which prerequisite versions the
+ current sources actually require. I went all the way back to
+ Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
+ a seemingly endless set of combinations of versions more recent
+ than that. The bottom line is that the current sources require
+ fairly recent versions of the build tools, and it'll be some work
+ to change this.
+ * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
+ (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
+ (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
+ Add comments explaining why those particular versions are
+ currently needed.
+
+ * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
+ in SGI MIPSpro 7.4.1m. Problem reported by Albert Chin-A-Young in
+ <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
+
+ * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
+ (it fails with a Autoconf-without-aclocal-m4 diagnostic).
+
+2004-05-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
+ 0.11.5. Suggested by Bruno Haible.
+ * bootstrap: Remove gettext version checking.
+
+ * doc/bison.texinfo (Decl Summary): Also mention that %union
+ can depend on prerequisite types. Problem reported by Tim
+ Van Holder.
+
+2004-05-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * README: Mention GNU m4 1.4 bugs and Akim's patched version.
+ * README-alpha: Don't tell people not to package this.
+
+ * bootstrap: Don't assume $(...) works; use `...` instead.
+ Problem reported by Paul Hilfinger. Also, diagnose non-GNU
+ gettext better.
+
+ * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
+ put into the -d output file, and mention what to do if YYSTYPE is
+ defined as a macro.
+
+2004-05-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ Undo change made earlier today: it caused autopoint to not bring
+ in ABOUT-NLS. Ouch. Instead, substitute our own diagnostic for
+ autopoint's.
+
+ * bootstrap: Check that gettext version matches what's in
+ configure.ac. Warn users to ignore robots.txt ERROR 404.
+ * bootstrap: Undo today's earlier change (logged below).
+ * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
+
+ The gettext version checking is causing more trouble than it's
+ curing; remove it. Problem reported by Paul Hilfinger.
+
+ * bootstrap: Issue a warning that one can expect a message
+ 'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
+ * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
+
+2004-05-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ Ensure that the C++ compiler used for testing actually works on a
+ simple test program; if not, skip the C++-related tests. Problem
+ reported by Vin Shelton in:
+ http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
+
+ * m4/cxx.m4: New file.
+ * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
+ * tests/atlocal.in (BISON_CXX_WORKS): Add.
+ * tests/local.at (AT_COMPILE_CXX): Use it.
+
+2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * data/glr.c (yylloc): Output this macro even if locations are not
+ being generated, as the GLR parser needs it even in that case.
+ Problem reported by Troy A. Johnson
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
+
+ * configure.ac (AC_INIT): Update to 1.875e.
+
+2004-05-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Version 1.875d.
+ * configure.ac (AC_INIT): Likewise.
+ * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
+
+ * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
+ -Wmissing-prototypes, or -Wstrict-prototypes for C++. The current
+ lalr1.cc runs afoul of the first, and the last two are no longer
+ supported by GCC 3.4.0.
+ * README: Mention GNU m4 1.4 or later; mention m4 patches.
+ * HACKING: Use ./bootstrap, not "make update" to import foreign files.
+
+2004-05-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
+ unsigned int, for compatibility with latest gnulib hash module.
+ * src/state.c (state_hash, state_hasher): Likewise.
+ * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
+ * src/uniqstr.c (hash_uniqstr): Likewise.
+
+2004-05-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: Unescaped newlines are no longer allowed in char & strings.
+
+ * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
+ SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
+ character and string literals.
+ (unexpected_end): New function.
+ (unexpected_eof): Use it.
+ (unexpected_newline): New function.
+ (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
+ actions.
+
+ * NEWS: Document %expect-rr.
+
+ * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
+ Fix typo by replacing $1 with $option.
+ Remove more 'intl'-related files.
+ Don't DEFUN AM_INTL_SUBDIR twice.
+
+ * lib/.cvsignore: Add strndup.h. Remove memchr.c, memcmp.c,
+ memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
+ strtoul.c.
+ * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
+ hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
+ xstrndup.m4. Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
+ inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
+ stdint_h.m4, uintmax_t.m4, ulonglong.m4.
+ * src/.cvsignore: Add *.output.
+
+ * src/parse-gram.y: Put copyright notice inside %{ %} so it
+ gets copied to the output file.
+
+2004-04-28 Paul Eggert <eggert@twinsun.com>
+
+ Get files from the gnulib and po repositories, instead of relying
+ on them being in our CVS. Upgrade to latest versions of gnulib
+ and Automake.
+
+ * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
+ * bootstrap: Bootstrap from gnulib and po repositories.
+ Much of this code was stolen from GNU diff and GNU tar's bootstrap.
+ * README-cvs: Document these changes. Remove version numbers from
+ mentions of build tools, since they change so often. Mention Flex.
+
+ * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
+ (gl_USE_SYSTEM_EXTENSIONS): Add.
+ (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
+ Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
+ does this for us.
+ (AC_ISC_POSIX): Remove; we no longer support this
+ ancient OS, as it gets in the way of latest Autoconf & gnulib.
+ (AC_HEADER_STDC): Remove: we now assume C89 or better.
+ (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
+ Do not check for C89 headers, except for locale.h which is used
+ by the Yacc library and must port to K&R hosts.
+ (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
+ Do not check for C89 functions, except for setlocale which is
+ used by the Yacc library.
+ (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
+ (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
+ gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
+ gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
+ gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
+ AM_GNU_GETTEXT): Remove; now done by:
+ (GNULIB_AUTOCONF_SNIPPET): Add. "bootstrap" builds this for us.
+ (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
+ for us.
+
+ * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
+ (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
+ Define to empty, as gnulib.mk will do the rest for us.
+ ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
+ for us.
+ (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
+ (lib_SOURCES): New symbol, containing only the non-gnulib libs.
+
+ * src/files.c: Include gnulib's xstrndup.h.
+
+ * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
+ (REALLOC): Use xnrealloc, for likewise.
+ (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
+ (strnlen, memrchr): Remove decls; functions no longer used.
+ Include <stpcpy.h>.
+
+ * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
+ lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+ lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
+ lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
+ lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
+ lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
+ lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
+ lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
+ lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
+ lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
+ lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
+ m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
+ m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
+ m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
+ m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
+ m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
+ m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
+ m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
+ po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
+ po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
+ po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
+ Remove, as these files are now generated automatically
+ by bootstrap or automake.
+
+ * po/ChangeLog: Remove: all but one entry was a duplicate
+ of this file, and I moved that 2000-11-02 entry here.
+
+ * config/.cvsignore: Add Makefile, depcomp, install-sh.
+ * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
+ argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
+ exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
+ getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
+ hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
+ memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
+ quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
+ strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
+ strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
+ unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
+ xstrndup.h.
+ * m4/.cvsignore: Remove Makefile, Makefile.in. Add alloca.m4,
+ dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
+ mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
+ stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
+ * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
+ * src/.cvsignore: Remove *_.c.
+
+
+ * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
+ support it. (The latest stable gzip doesn't.)
+
+2004-04-27 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
+ case, as stos_ is now used by destructors due to the 2004-02-09
+ change.
+
+ Remove more K&R C support.
+ * lib/libiberty.y (PARAMS): Remove. All uses removed.
+ * lib/subpipe.c (errno): Remove decl.
+ Include <stdlib.h> unconditionally.
+ (EXIT_FAILURE): Remove macro.
+ * src/complain.c (vfprintf, strerror): Remove.
+ * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
+ unconditionally.
+ (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
+ Use latest Autoconf recommendations for including inttypes.h, stdint.h.
+ (strchr, strspn, memchr): Remove decls.
+ * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
+ unconditionally. Do not declare perror.
+ * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
+ unconditionally.
+
+ * src/complain.c (_): Remove useless defn, as system.h defines this.
+
+ * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
+ with latest obstack.h.
+ * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
+ to procedure types, as obstack.h now does that for us.
+ * lib/lbitset.c (lbitset_elt_alloc): Likewise.
+
+ * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
+ so that this include file can stand alone.
+ * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
+ does this now. Include subpipe.h first after config.h, to
+ test whether it can stand alone.
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
+ declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
+ unused declaration.
+
+ * tests/synclines.at (%union synch line): Put a dummy member in
+ the union, because empty unions aren't allowed in C. Caught
+ by GCC 3.4.0.
+
+2004-04-13 Jim Meyering <jim@meyering.net>
+
+ * src/conflicts.c (conflicts_print): Correct format string typo:
+ use `%%' to produce literal `%'. (trivial change)
+
+2004-03-30 Paul Eggert <eggert@twinsun.com>
+
+ * src/getargs.c (version): Update copyright year to 2004.
+
+ * data/c.m4 (b4_int_type): Use 'short int' rather than
+ 'short', and similarly for 'long', 'unsigned', etc.
+ * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
+ yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
+ yy_yypstack, yydumpstack): Likewise.
+ * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
+ translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
+ Likewise.
+ * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
+ yy_stack_print, yyparse): Likewise.
+ * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
+ * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
+ * lib/bitset.c (bitset_print): Likewise.
+ * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
+ * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+ * lib/bitsetv.c (bitsetv_dump): Likewise.
+ * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
+ * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
+ Likewise.
+ * src/LR0.c (allocate_itemsets): Likewise.
+ * src/gram.h (rule_number, rule): Likewise.
+ * src/lalr.h (goto_number): Likewise.
+ * src/nullable.c (nullable_compute): Likewise.
+ * src/output.c (prepare_rules): Likewise.
+ * src/relation.c (relation_print, relation_digraph): Likewise.
+ * src/relation.h (relation_node): Likewise.
+ * src/state.h (state_number, transitions, errs, reductions,
+ struct state): Likewise.
+ * src/symtab.h (symbol_number, struct symbol): Likewise.
+ * src/tables.c (vector_number, tally, action_number,
+ default_goto, goto_actions): Likewise.
+ * tests/existing.at (GNU Cim Grammar): Likewise.
+ * tests/regression.at (Web2c Actions): Likewise.
+
+ * src/output.c (muscle_insert_short_int_table): Renamed from
+ muscle_insert_short_table. All uses changed.
+
+2004-03-25 Paul Hilfinger <hilfingr@tully.CS.Berkeley.EDU>
+
+ * src/parse-gram.y: Define PERCENT_EXPECT_RR.
+ (declaration): Replace expected_conflicts with expected_sr_conflicts.
+ Add %expect-rr rule.
+
+ * src/scan-gram.l: Recognize %expect-rr.
+
+ * src/conflicts.h (expected_sr_conflicts): Rename from
+ expected_conflicts.
+ (expected_rr_conflicts): Declare.
+
+ * src/conflicts.c (expected_sr_conflicts): Rename from
+ expected_conflicts.
+ (expected_rr_conflicts): Define.
+ (conflicts_print): Check r/r conflicts against expected_rr_conflicts
+ for GLR parsers.
+ Use expected_sr_conflicts in place of expected_conflicts.
+ Warn if expected_rr_conflicts used in non-GLR parser.
+
+ * doc/bison.texinfo: Add documentation for %expect-rr.
+
+2004-03-08 Paul Eggert <eggert@gnu.org>
+
+ Add support for hex token numbers. Suggested by Odd Arild Olsen in
+ <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
+
+ * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
+ in lalr1.cc.
+ * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
+ * src/scan-gram.l (scan_integer): New function.
+ ({int}): Use it.
+ (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
+ (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
+ handle_action_dollar, handle_action_at, convert_ucn_to_byte):
+ Say "long int", not "long", for uniformity with GNU style.
+
+2004-02-25 Paul Eggert <eggert@twinsun.com>
+
+ * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
+ compilers. This fixes a problem with Intel's C++ compiler being
+ chatty, reported by Guido Trentalancia in
+ <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
+
+2004-02-09 Alexandre Duret-Lutz <adl@gnu.org>
+
+ Support %destructor and merge error locations in lalr1.cc.
+
+ * data/lalr1.cc (b4_cxx_destruct_def): New macro.
+ (Parser::stos_): Define unconditionally.
+ (Parser::destruct_): New method. Generate its body with
+ b4_yydestruct_generate.
+ (Parser::error_start_): New attribute.
+ (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
+ token which are discarded.
+ (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
+ error_start_ when erroneous token are discarded.
+ (Parser::parse) <yyerrlab1>: Compute the location of the error
+ token so that it covers all the discarded tokens.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
+ it can be called with `%skeleton "lalr1.cc"', and do that.
+
+2004-02-02 Paul Eggert <eggert@twinsun.com>
+
+ * src/Makefile.am (AM_CPPFLAGS): New macro. It mentions
+ $(top_srcdir)/lib and ../lib. This fixes a bug reported
+ by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
+ There's no need to mention top_builddir since Automake does that
+ for us.
+ (INCLUDES): Remove, as Automake says it's obsolescent.
+ Contents migrated into AM_CPPFLAGS as described above.
+ * lib/Makefile.am (INCLUDES): Remove; obsolescent.
+
+2004-01-14 Paul Hilfinger <hilfingr@CS.Berkeley.EDU>
+
+ * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
+ (yyreportSyntaxError): Handle case where lookahead token is
+ YYEMPTY.
+
+2004-01-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
+ resulting parsers are compilable with C++.
+
+2003-12-23 Paul Eggert <eggert@twinsun.com>
+
+ * config/depcomp, config/install-sh: Sync with Automake 1.8.
+ * src/output.c (output_skeleton): Rename local var.
+ * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
+ Bison tokens, as this runs afoul of the 2003-10-07 change that
+ disallowed NUL bytes in character constants or string literals.
+
+ * tests/local.at: Require Autoconf 2.59's Autotest.
+ * tests/testsuite.at: Don't include local.at, since we now assume
+ Autoconf 2.59 or later. Autoconf 2.59 had some problems with
+ including it.
+ * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
+ multiple inclusion warnings.
+
+2003-12-02 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (How Can I Reset the Parser): More about start
+ conditions.
+ From Bruno Haible.
+
+2003-11-18 Alexandre Duret-Lutz <adl@gnu.org>
+
+ * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
+
+2003-10-07 Paul Eggert <eggert@twinsun.com>
+
+ * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
+ if testsuite doesn't exist.
+
+ * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
+ literals, unfortunately.
+ * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
+ Complain about NUL bytes in character constants or string literals.
+
+2003-10-05 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS: Don't document %no-default-prec, as it's still
+ too experimental.
+ * doc/bison.texinfo: Document %no-default-prec only if
+ the defaultprec flag is set. Normally it's not.
+
+2003-10-04 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
+ non-modifiable lvalue, instead of a modifiable one.
+ * doc/bison.texinfo (Actions): Document that $$ can
+ be assigned to. Do not claim that $$ and $N are
+ array element references: user code should not rely on this.
+
+2003-10-01 Paul Eggert <eggert@twinsun.com>
+
+ * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
+ (grammar_declaration): Use it.
+ * src/scan-gram.l: New token %no-default-prec.
+ * tests/conflicts.at: Revamp tests to use %no-default-prec.
+ * NEWS, doc/bison.texinfo: Document the above.
+
+2003-10-01 Akim Demaille <akim@epita.fr>
+
+ VCG no longer supports long_straight_phase.
+
+ * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
+ * src/print_graph.c (print_graph): Adjust.
+
+2003-09-30 Frank Heckenbach <frank@g-n-u.de>
+ and Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (Decl Summary, Contextual Precedence,
+ Table of Symbols): Document %default-prec.
+ * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
+ (grammar_declaration): Set default_prec on %default-prec.
+ * src/scan-gram.l (%default-prec): New token.
+ * src/reader.h (default_prec): New flag.
+ * src/reader.c: Likewise.
+ (packgram): Handle it.
+ * tests/conflicts.at (%default-prec without %prec,
+ %default-prec with %prec, %default-prec 1): New tests.
+
+2003-09-30 Paul Eggert <eggert@twinsun.com>
+
+ * tests/testsuite.at: Include local.at, not input.at, fixing
+ a typo in the 2003-08-25 patch.
+
+2003-08-27 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
+ GCC warnings.
+
+2003-08-26 Akim Demaille <akim@epita.fr>
+
+ * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
+ "<\#" to avoid magic from Gnus when posting parts of this script.
+
+2003-08-26 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
+ (Parser::parse): here.
+ Adjust: nerrs and errstatus is now replaced by...
+ (Parser::nerrs_, Parser::errstatus_): New.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * config/announce-gen, Makefile.cfg: New.
+ * Makefile.am: Adjust.
+ * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
+ keeping local WGET and WGETFLAGS modifications from Paul Eggert.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ When reducing initial empty rules, Bison parser read an initial
+ location that is not defined. This results in garbage, and that
+ affects Bison's own parser. Therefore we need (i) to extend Bison
+ to support a means to initialize this location, and (ii) to use
+ this CVS Bison to fix CVS Bison's parser.
+
+ * src/reader.h, reader.c (epilogue_augment): Remove, replace
+ with...
+ * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
+ * src/parse-gram.y: Adjust.
+ (%initial-action): New.
+ (%error-verbose): Since we require CVS Bison, there is no reason
+ not to use it.
+ * src/scan-gram.l: Adjust.
+ * src/Makefile.am (YACC): New, to make sure we use our own parser.
+ * data/yacc.c (yyparse): Use b4_initial_action.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Don't promote stdout for error messages.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
+ From Alexandre Duret-Lutz.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ Version 1.875c.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
+ Use them.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (Parser::reduce_print_): New.
+ Use it.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
+ error recovery loops. This patch is based on
+ <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
+ Also, augment the similarity between lalr1.cc and yacc.c.
+ Note: the locations of error recovery rules are not correct yet.
+
+ * data/lalr1.cc: Comment changes to augment the similarity between
+ lalr1.cc and yacc.c.
+ (YYERROR): Goto to yyerrorlab, not yyerrlab1.
+ (yyerrlab1): Remove, but where it used to be (now the bottom part of
+ yyerrlab), when hitting EOF, pop the whole stack here instead of
+ merely falling thru the default error handling mechanism.
+ (yyerrorlab): New label, with the old contents of YYERROR,
+ plus the following change: pop the stack of rhs corresponding
+ to the production that invoked YYERROR. That is how Yacc
+ behaves (required by POSIX).
+ * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
+ fail.
+
+2003-08-25 Akim Demaille <akim@epita.fr>
+
+ Tune local.at so that people can "autom4te -l autotest calc.at -o
+ calc" for instance, to extract a sub test suite.
+
+ * tests/testsuite.at: Move the initialization, Autotest version
+ requirement, and AT_TESTED invocation into...
+ * tests/local.at: here.
+ * tests/testsuite.at: Include it for compatibility with Autoconf
+ 2.57.
+ * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
+ be ignore.
+
+2003-08-04 Paul Eggert <eggert@twinsun.com>
+
+ Rework code slightly to avoid gcc -Wtraditional warnings.
+ * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
+ The returned value is now stored in *YY0. All callers changed.
+ * src/output.c (merge_output): Adjust to the above change.
+
+2003-07-26 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (YYASSERT): New macro.
+ (yyfillin, yydoAction, yyglrReduce, yysplitStack,
+ yyresolveStates, yyprocessOneStack):
+ Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
+ Derived from a suggestion by Frank Heckenbach.
+
+2003-07-25 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
+ for portability to K&R C (after ansi2knr, presumably). See
+ <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
+ by Frank Heckenbach, though I have omitted the structure-initialization
+ part of his glr-knr.diff patch since I recall that the Portable
+ C Compiler didn't require that change.
+
+ Let the user specify how to allocate and free memory.
+ Derived from a suggestion by Frank Heckenbach in
+ <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
+ * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
+ All uses of free, malloc, realloc changed to use these macros,
+ and unnecessary casts removed.
+ * data/yacc.c (YYFREE, YYMALLOC): Likewise.
+
+2003-07-06 Matthias Mann <MatthiasMann@gmx.de>
+
+ * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
+ use s.empty() rather than s == "" to test for empty string; see
+ <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
+ (trivial change)
+
+2003-06-25 Akim Demaille <akim@epita.fr>
+
+ * config/depcomp, config/install-sh: Update from masters.
+
+2003-06-20 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
+ and return properly parenthesized result.
+ * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
+ * data/yacc.c (YYLLOC_DEFAULT): Likewise.
+ Remove unnecessary parentheses from uses.
+ * doc/bison.texinfo (Location Default Action): Describe the
+ conventions for parentheses.
+
+2003-06-19 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
+ yyreportTree): Do not assume that size_t is the same width as int,
+ when printing sizes. Print sizes using an unsigned format.
+ Problem reported by Frank Heckenbach in
+ <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
+
+ Port to Forte Developer 7 C compiler.
+ * data/glr.c (struct YYLTYPE): If locations are not being used,
+ declare a single dummy member, as empty structs do not conform
+ to the C standard.
+ (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
+ the Forte Developer 7 C compiler complains that end-of-loop
+ code is not reached.
+
+2003-06-17 Paul Eggert <eggert@twinsun.com>
+
+ * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
+ avoid warnings from picky compilers about redefinition of PARAMS.
+
+2003-06-17 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.875b.
+
+ * NEWS: Document 1.875b.
+
+ * lib/bbitset.h: Do not include config.h; that's the includer's job.
+ Do not include <sys/types.h>; shouldn't be needed on a C89 host.
+ * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
+ Don't use 'index' in comments, as it's a builtin fn on some hosts.
+ * lib/bitset_stats.c: Include gettext.h unconditionally, as
+ per recent gettext manual's suggestion.
+ * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
+ Use prototypes, not old-style definitions.
+ * lib/lbitset.c (lbitset_unused_clear): Likewise.
+ * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
+ vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
+ vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
+ vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
+ vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
+ vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
+ vbitset_or_and_cmp, vbitset_copy): Likewise.
+
+ * lib/libiberty.h: Do not include config.h; that's the includer's job.
+ Do not include <stdlib.h>.
+ (PARAMS): Define unconditionally for C89.
+ (ATTRIBUTE_NORETURN): Remove.
+ (ATTRIBUTE_UNUSED): Define unconditionally.
+
+ Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
+ <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
+ * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
+ * lib/vbitset.c, lib/vbitset.h: New files.
+ * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
+ lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
+ from libbitset.
+
+ * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
+ `How Can I Reset @code{yyparse}', since texinfo does not allow
+ arbitrary @ in node names.
+
+ * m4/Makefile.am (EXTRA_DIST): Add the following files, which
+ shouldn't be needed according to the gettext 0.12.1 documentation
+ but which seem to be needed anyway: codeset.m4 glibc21.m4
+ intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
+ lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
+ * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
+
+ * lib/.cvsignore: Add stdbool.h.
+ * m4/.cvsignore: Add nls.m4, po.m4.
+
+ Upgrade to CVS gnulib.
+ * stdbool_.h: File renamed from stdbool.h.in.
+ * configure.ac (AM_STDBOOL_H): Invoke this instead of
+ AC_HEADER_STDBOOL.
+ (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
+ (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
+ * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
+ (MOSTLYCLEANFILES): New var.
+ ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
+ (stdbool.h): New rule.
+ * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
+ lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
+ lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
+ m4/quote.m4: Upgrade to today's gnulib.
+
+ * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
+ (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
+ the tests right now.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
+ yyerror are declared before use; C99 requires this.
+
+2003-06-09 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
+ first.
+ (yyrecoverSyntaxError): Correct the logic for setting and testing
+ yyerrState.
+ Correct comment on handling EOF.
+ Allow states with only a default reduction, rather than failing
+ (I can't quite reconstruct why these were not allowed before).
+
+ Fixes to avoid problem that $-N rules in GLR parsers can cause
+ buffer overruns, corrupting state.
+
+ * src/output.c (prepare_rules): Output max_left_semantic_context
+ definition.
+ * src/reader.h (max_left_semantic_context): New variable declaration.
+ * src/scan-gram.l (max_left_semantic_context): Define.
+ (handle_action_dollar): Update max_left_semantic_context.
+ * data/glr.c (YYMAXLEFT): New definition.
+ (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
+ (yyresolveAction): Ditto.
+
+ Fixes to problems with location handling in GLR parsers reported by
+ Frank Heckenbach (2003/06/05).
+
+ * data/glr.c (YYLTYPE): Make trivial if locations not used.
+ (YYRHSLOC): Add parentheses, and define only if locations used.
+ (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
+ locations not used.
+ (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
+ (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
+
+ * tests/cxx-type.at: Exercise location information; update tests
+ to differentiate output with and without locations.
+ Remove forward declarations of yylex and yyerror---caused errors
+ because default YYLTYPE not yet defined.
+ Change semantic actions to compute strings, rather than printing
+ them directly (to test proper passing of semantics values). Change
+ output to prefix notation and update test data and expected results.
+ (yylex): Track locations.
+ (stmtMerge): Return value rather than printing, and include arguments
+ in value.
+
+2003-06-03 Paul Eggert <eggert@twinsun.com>
+
+ Avoid warnings generated by GCC 2.95.4 when Bison is
+ configured with --enable-gcc-warnings.
+ * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
+ yy::]b4_parser_class_name[::translate_,
+ yy::Stack::operator[] (unsigned),
+ yy::Stack::operator[] (unsigned) const,
+ yy::Slice::operator[] (unsigned),
+ yy::Slice::operator[] (unsigned) const):
+ Rename local vars to avoid warnings.
+ * tests/glr-regression.at (Improper handling of embedded actions
+ and $-N in GLR parsers): Remove unused local variable from yylex.
+ * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
+ (void) as arg when not pure, since we now assume C89 when building
+ Bison. Pacify GCC by using parameter.
+
+2003-06-02 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
+ yy::Location::lines, yy::Location::columns): Rename arguments
+ to avoid shadowing; this removes a warning generated by GCC 3.3.
+
+2003-06-01 Paul Eggert <eggert@twinsun.com>
+
+ Don't pass C-only warning optins (e.g., -Wmissing-declarations)
+ to g++, as GCC 3.3 complains if you do it.
+ * configure.ac (WARNING_CXXFLAGS): New subst. Set it to
+ everything that WARNING_CFLAGS has, except omit warnings
+ not suitable for C++.
+ (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
+ * tests/atlocal.in (CXXFLAGS): New var.
+ * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
+
+ Fix a GLR parser bug I reported in February; see
+ <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
+ The problem was that GLR parsers did not conform to the C standard,
+ because actions like { $1 = $2 + $3; } expanded to expressions
+ that invoked YYFILL in separate subexpressions, and YYFILL assigned
+ to a local variable. The C standard says that expressions
+ like (var = f ()) + (var = f ()) have undefined behavior.
+ Another problem was that GCC sometimes issues warnings that
+ yyfill and its parameters are unused.
+
+ * data/glr.c (yyfillin): Renamed from the old yyfill. Mark
+ as possibly unused.
+ (yyfill): New function.
+ (YYFILL): Use it.
+ (yyuserAction): Change type of yynormal to bool, so that it matches
+ the new yyfill signature. Mark it as possibly unused.
+
+
+ Follow up on a bug I reported in February, where a Bison-generated
+ parser can loop. Provide a test case and a fix for yacc.c. I
+ don't have a fix for lalr1.cc or for glr.c, unfortunately.
+ The original bug report is in:
+ <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
+
+ * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
+ macro's size was becoming unwieldy.
+ (yyerrlab): Do not discard an empty lookahead symbol, as this
+ might destroy garbage.
+ (yyerrorlab): New label, with the old contents of YYERROR,
+ plus the following change: pop the stack of rhs corresponding
+ to the production that invoked YYERROR. That is how Yacc
+ behaves, and POSIX requires this behavior.
+ (yyerrlab1): Use YYPOPSTACK instead of its definiens.
+ * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
+ Define 'alarm' to do nothing if unistd.h is not available.
+ Add a new rule "exp: '-' error;" to test the above change to
+ data/yacc.c. Use 'alarm' to abort any test taking longer than
+ 10 seconds, as it's probably looping.
+ (AT_CHECK_CALC): Test recovery from error in new grammar rule.
+ Also, the new yacc.c generates two fewer diagnostics for an
+ existing test.
+
+2003-05-24 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
+ YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
+ This fixes a problem reported by John Bowman when the Compaq/HP
+ Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
+ -ansi -Wall -gall).
+ * data/yacc.c (union yyalloc): Likewise.
+ (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
+
+ Switch from 'int' to 'bool' where that makes sense.
+
+ * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
+ abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
+ abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
+ abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
+ Return or accept bool, not int. All callers changed.
+ * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
+ bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
+ * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
+ bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
+ bitset_or_and_cmp_): Likewise.
+ * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
+ * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
+ bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
+ bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
+ bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
+ bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
+ bitset_stats_or_and_cmp): Likewise.
+ * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
+ ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
+ ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
+ ebitset_xor_cmp): Likewise.
+ * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
+ lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
+ lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
+ lbitset_xor_cmp): Likewise.
+ * lib/bbitset.h: Include <stdbool.h>.
+ (struct bitset_vtable): The following members now return bool, not
+ int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
+ and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
+ or_and_cmp).
+ * src/conflicts.c (count_rr_conflicts): Likewise.
+ * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
+ All uses changed.
+ * lib/ebitset.c (ebitset_obstack_init): Likewise.
+ * lib/lbitset.c (lbitset_obstack_init): Likewise.
+ * src/getargs.c (debug_flag, defines_flag, locations_flag,
+ no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
+ graph_flag): Likewise.
+ * src/getargs.h (debug_flag, defines_flag, locations_flag,
+ no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
+ graph_flag): Likewise.
+ * src/output.c (error_verbose): Likewise.
+ * src/output.h (error_verbose): Likewise.
+ * src/reader.c (start_flag, typed): Likewise.
+ * src/reader.h (typed): Likewise.
+ * src/getargs.c (LOCATIONS_OPTION): New constant.
+ (long_options, getargs): Use it.
+ * src/lalr.c (build_relations): Use bool, not int.
+ * src/nullable.c (nullable_compute): Likewise.
+ * src/print.c (print_reductions): Likewise.
+ * src/tables.c (action_row, pack_vector): Likewise.
+ * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
+ * src/output.c (prepare): Use it.
+ * src/output.c (token_definitions_output,
+ symbol_destructors_output, symbol_destructors_output): Use string,
+ not boolean integer, to keep track of whether to output separator.
+ * src/print_graph.c (print_core): Likewise.
+ * src/state.c (state_rule_lookaheads_print): Likewise.
+
+ * config/install-sh: Sync from automake 1.7.5.
+
+2003-05-14 Paul Eggert <eggert@twinsun.com>
+
+ * src/parse-gram.y (rules_or_grammar_declaration): Require a
+ semicolon after a grammar declaration, in the interest of possible
+ future changes to the Bison input language.
+ Do not allow a stray semicolon at the start of the grammar.
+ (rhses.1): Allow one or more semicolons after any rule, including
+ just before "|" as required by POSIX.
+ * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
+ grammar.
+
+2003-05-14 Alexandre Duret-Lutz <adl@gnu.org>
+
+ %parse-param support for lalr1.cc.
+
+ * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
+ b4_cc_constructor_calls, b4_cc_constructor_call,
+ b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
+ definitions.
+ (yy::b4_parser_class_name::b4_parser_class_name): Take extra
+ parse-param arguments.
+ (yy::b4_parser_class_name): Declare instance variables to
+ hold parse-param arguments.
+ * tests/calc.at: s/value/semantic_value/ because value clashes
+ with a member of yy::b4_parser_class_name. Adjust C++ code
+ to handle %parse-param. Enable %parse-param test in C++.
+
+2003-05-12 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
+ English a bit. Fix fclose typo. Change "const char" to "char
+ const", and use ANSI C rather than K&R for "main". Suggest
+ YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
+ and suggest yy_switch_to_buffer.
+
+2003-05-05 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
+ C89. This avoids a diagnostic on compilers that define __STDC__
+ to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
+
+2003-05-03 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
+ Do not overrun array bounds.
+ This should fix a bug reported today by Olatunji Oluwabukunmi in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
+
+2003-04-29 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
+ * src/getargs.c, src/getargs.h: here, as bool, not int.
+ (nondeterministic_parser): New.
+ * src/parse-gram.y, src/scan-gram.l: Support
+ %nondeterministic-parser.
+ * src/output.c (prepare): Use nondeterministic_parser instead
+ of glr_parser where appropriate.
+ * src/tables.c (conflict_row, action_row, save_row)
+ (token_actions, token_actions, pack_vector): Ditto.
+
+2003-04-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
+
+2003-04-29 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
+ with %pure-parser and %locations to exercise the patch from Yakov
+ Markovitch below.
+
+2003-04-28 Tim Van Holder <tim.van.holder@pandora.be>
+
+ * data/yacc.c: (b4_lex_param): Corrected for the case where
+ %lex-param is provided and %pure-parser isn't.
+
+2003-04-27 Paul Eggert <eggert@twinsun.com>
+
+ Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
+ * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
+ if it is not defined.
+ (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
+
+2003-04-26 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
+ Declare to be of type suitable for the ninf value itself, not of
+ type suitable for the corresponding table, since the latter might
+ be unsigned but the ninf value might be negative. This fixes a
+ bug reported by Alexandre Duret-Lutz in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
+
+ * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
+ invokes it. We shouldn't invoke it twice because it will attempt
+ to put error.o in the archive twice. This fixes a glitch reported
+ by Martin Mokrejs in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
+
+2003-04-21 Paul Eggert <eggert@twinsun.com>
+
+ * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
+ to gnulib.
+
+2003-04-21 Yakov Markovitch <Markovitch@iso.ru>
+
+ * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
+ Fix obvious typo that results in uncompilable GLR parsers
+ when both %pure-parser and %locations are used. (trivial change)
+
+2003-04-17 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l: Add %option nounput, since we no longer use unput.
+ (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
+ Do not insert the expected token via unput, as this runs afoul
+ of a POSIX-compatibility bug in flex 2.5.31.
+ All uses changed to BEGIN the parent state,
+ since we no longer insert the expected token via unput.
+ * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
+ that is no longer emitted after the above change.
+
+ * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
+ the first one. This change is from Paul Hilfinger, and it fixes
+ regression reported by Werner Lemberg in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
+
+ (resolve_sr_conflict): Don't invoke state_errs_set
+ unless one or more tokens have been explicitly made errors.
+ Otherwise, the above change causes Bison to abort.
+
+ * tests/existing.at (GNU pic Grammar): New test case, taken from
+ Lemberg's email.
+
+2003-03-31 Akim Demaille <akim@epita.fr>
+
+ * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
+
+2003-03-31 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare_symbols): Avoid trailing spaces in the
+ output.
+
+2003-03-31 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
+ From Paul Hilfinger.
+
+2003-03-29 Akim Demaille <akim@epita.fr>
+
+ * m4/error.m4: Do not put under dynamic conditions some code which
+ expansion is under static control.
+
+2003-03-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
+
+2003-03-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Strings are Destroyed): New.
+
+2003-03-13 Paul Eggert <eggert@twinsun.com>
+
+ * .cvsignore: Add configure.lineno.
+ * src/.cvsignore: Add yacc.
+ * tests/.cvsignore: Add testsuite.log.
+ * doc/fdl.texi: Sync with latest FSF version.
+
+2003-03-12 Paul Eggert <eggert@twinsun.com>
+
+ * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
+ (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
+ cursor, instead of leaving it undefined. This fixes a bug
+ reported by Tim Van Holder in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
+ * tests/input.at (Torturing the Scanner): Test the scanner on
+ an empty input file, which was Tim Van Holder's test case.
+
+ * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
+ <sys/resource.h> can be included, include sys/time.h and
+ sys/times.h first, if available. This works around the SunOS
+ 4.1.4 porting bug reported by Bruce Becker in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
+
+ * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
+ AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
+ AC_HEADER_SYS_WAIT.
+
+ Merge changes from gnulib. This was prompted because the CVS
+ snapshot didn't build on Solaris 7 due to strnlen problems.
+
+ These changes need to be merged back into gnulib:
+ * lib/hash.c: Include <stdbool.h> unconditionally.
+ * m4/onceonly.m4 (m4_quote): New macro.
+ (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
+ Quote AC_FOREACH variable-expansions properly.
+ The 2003-01-03 obstack.h change also needs merging.
+ {end of changes requiring merging}
+
+ * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
+ m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
+ m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
+ m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
+ m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
+ New files, imported from gnulib.
+ * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
+ above.
+
+ * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
+ m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
+ gnulib sources.
+
+ * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
+ Add.
+ (gl_ERROR): New, replacing jm_PREREQ_ERROR.
+ (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
+ (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
+ (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
+ (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
+ (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
+ (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
+ (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
+ (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
+ (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
+ (jm_PREREQ_ARGMATCH): Remove.
+ (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
+ * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
+
+ * src/system.h: Include <stdbool.h> unconditionally.
+
+ * lib/bbitset.h: Include <limits.h> unconditionally. We have been
+ assuming at least C89 in the bitset code for some time now.
+
+2003-03-03 Akim Demaille <akim@epita.fr>
+
+ * ro.po: New.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Table of Symbols): Reactivate the
+ documentation for %lex-param, and %parse-param.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
+ generate verbose error messages.
+ Use the number of tokens as an upper bound in yytname, as it
+ cannot be a non terminal.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
+ message.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
+ Use them to exercise yycheck overrun.
+ Based on Andrew Suffield's grammar.
+
+2003-03-02 Akim Demaille <akim@epita.fr>
+
+ Create tests/local.at for Bison generic testing macros.
+
+ * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
+ * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
+ This new file.
+ * tests/calc.at (AT_CHECK_CALC): Adjust.
+ * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
+ (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
+ * tests/local.at: here.
+ (AT_COMPILE_CXX): Tags the tests using it as c++.
+ Ignore the test if CXX is not functional.
+
+2003-03-01 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
+ not loc->end, since loc->end might contain garbage and this leads
+ to undefined behavior on some platforms.
+ (id_loc, token_start): Use (IF_LINTed) initial values that do not
+ depend on *loc, so that the reader doesn't give the the false
+ impression that *loc is initialized.
+ (<INITIAL>"%%"): Do not bother setting code_start, since its value
+ does not survive the return.
+
+2003-03-01 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (code_start): Always initialize it when entering
+ into yylex, as SC_EPILOGUE is activated *before* the corresponding
+ yylex invocation. An alternative would be making it static, but
+ then it starts with the second %%'s beginning, instead of its end.
+
+2003-02-28 Paul Eggert <eggert@twinsun.com>
+
+ * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
+ around a UnixWare 7.1.1 porting bug reported by John Hughes in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
+
+2003-02-26 Paul Eggert <eggert@twinsun.com>
+
+ * README: Mention compiler bug in Sun Forte Developer 6 update 2.
+ Remove Sequent/Pyramid discussion (nobody uses them any more).
+ Merge VMS and MS-DOS discussion; these ports may well be dead
+ but let's keep mentioning them for now. Put <> around email
+ addresses. Add copyright notice.
+
+2003-02-24 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yy_reduce_print): yylineno -> yylno,
+ to avoid collision with flex use of yylineno.
+ Problem reported by Bruce Lilly in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
+ * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
+ * data/yacc.c (yy_reduce_print): Likewise.
+
+ * config/depcomp: Sync with Automake 1.7.3.
+
+2003-02-21 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: Use temporary variables instead of casts to
+ change integer types.
+ Suggested by Paul Eggert.
+
+2003-02-21 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Use "location" consistently to refer to @n,
+ to avoid confusions with lalr1.cc's notion of Position.
+ Suggested by Paul Eggert.
+
+2003-02-20 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (position.hh): Make sure "columns" never pushes
+ before initial_columns.
+ (location.hh): Use consistent variable names when defining the
+ operator<<.
+ Use "last" so that we subtract from Positions, not from unsigned.
+
+2003-02-20 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (position.hh): New subfile, including the extended
+ and Doxygen'ed documentation of class Position.
+ (location.hh): Use it.
+ Document a` la Doxygen.
+ With the help of Benoit Perrot.
+
+2003-02-20 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
+ AT_YACC_IF.
+ Redefine AT_YYERROR_SEES_LOC_IF using it.
+ (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
+ not defined.
+ Don't use the location in yy::Parser::error_ and
+ yy::Parser::print_ when not %locations.
+ Activate more lalr1.cc tests.
+
+2003-02-19 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: When displaying a line number, be sure to make it
+ an int.
+
+2003-02-19 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
+ Remove, useless.
+ (YYABORT, YYACCEPT, YYERROR): New.
+ * tests/calc.at: Renable the lalr1.cc test.
+
+2003-02-19 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
+ error recovery, mixing with/without pops and discarding of the
+ lookahead.
+ Exercise YYERROR.
+ Disable the lalr1.cc tests as currently it doesn't support YYERROR.
+
+2003-02-17 Paul Eggert <eggert@twinsun.com>
+
+ * tests/atlocal.in (LDFLAGS, LIBS): New vars.
+ * tests/testsuite.at (AT_COMPILE): Use them.
+ This fixes the testsuite problem reported by Robert Lentz in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
+
+2003-02-12 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
+ Avoid subscript error in yycheck. Bug reported by Andrew Suffield in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
+ * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
+ Check for malloc failure, for consistency with yacc.c.
+ (yytname_size): Remove, for consistency with yacc.c.
+
+ The bug still remains in data/lalr1.cc, as I didn't have time
+ to fix it there.
+
+2003-02-06 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (GXX): Rename as...
+ (CXX): this, to keep the original Autoconf semantics.
+ Require 2.57.
+ * data/lalr1.cc: Fix b4_copyright invocations.
+ If YYDEBUG is not defined, don't depend upon name_ being defined.
+ (location.hh): Include string and iostream.
+ (Position::filename): New member.
+ (Position::Position ()): New.
+ (operator<< (Position)): New.
+ (operator- (Position, int)): New.
+ (Location::first, Location::last): Rename as...
+ (Location::begin, Location::end): these, to mock the conventional
+ iterator names.
+ (operator<< (Location)): New.
+ * tests/atlocal.in (CXX): New.
+ * tests/testsuite.at (AT_COMPILE_CXX): New.
+ * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
+ locations in a more synthetic way.
+ (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
+ lalr1.cc is used.
+ Adjust the C locations to match those from Emacs: first column is
+ column 0.
+ Change all the expected results.
+ Conform to the GCS: simplify the locations when applicable.
+ (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
+ (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
+ these CPP macros with the m4 macros new defined by...
+ (AT_CHECK_PUSHDEFS): this, i.e.:
+ (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
+ (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
+ New macros.
+ (AT_CHECK_POPDEFS): Undefine them.
+ (AT_CHECK_CALC_LALR1_CC): New.
+ Use it for the first lalr1.cc test.
+
+2003-02-04 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
+ Location as is defined.
+
+2003-02-04 Akim Demaille <akim@epita.fr>
+
+ * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
+ name_ being defined.
+
+2003-02-03 Paul Eggert <eggert@twinsun.com>
+
+ * src/gram.h (start_symbol): Remove unused decl.
+
+ Use more-consistent naming conventions for local vars.
+
+ * src/derives.c (derives_compute): Change type of local var from
+ int to rule_number.
+ * src/gram.c (grammar_rules_partial_print): Likewise.
+ * src/print.c (print_core): Likewise.
+ * src/reduce.c (reduce_grammar_tables): Likewise.
+
+ * src/gram.c (grammar_dump): Change name of item_number *
+ local var from r to rp.
+ * src/nullable.c (nullable_compute): Likewise.
+
+ * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
+
+ * src/gram.h (symbol_number_as_item_number): Use sym, not s,
+ for symbol or symbol_number var.
+ * src/reader.c (grammar_start_symbol_set): Likewise.
+ * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
+ Likewise.
+ * src/state.c (transitions_to): Likewise.
+ * src/state.h: Likewise.
+ * src/tables.c (symbol_number_to_vector_number): Likewise.
+
+ * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
+ char * var.
+
+ * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
+ var.
+
+ * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
+ var.
+
+ * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
+ Use str, not s, for char * var. Use ch, not c, for character var.
+ Use size for size var.
+
+ * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
+ char * var.
+ (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
+ uniqstr var.
+ * src/uniqstr.h: Likewise.
+
+ * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
+ get_layoutalgorithm_str, get_decision_str, get_orientation_str,
+ get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
+ get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
+ param to have same name as that of enum, so that we don't use
+ "s" to stand for a non-state.
+
+2003-02-02 Akim Demaille <akim@epita.fr>
+
+ * src/scan-skel.l: Scan more than one inert character per yylex
+ invocation.
+
+2003-02-01 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.875a.
+
+ * po/LINGUAS: Add ms.
+
+2003-01-30 Akim Demaille <akim@epita.fr>
+
+ * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
+
+2003-01-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
+ of $1.
+
+ Changes in response to error report by S. Eken: GLR mode does not
+ handle negative $ indices or $ indices in embedded rules correctly.
+ See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
+
+ * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
+ (b4_rhs_location): Ditto.
+ (yyfill): New function to copy from stack tree into array
+ incrementally.
+ (yyuserAction): Modify to allow incremental move of semantic values
+ to rhs array when in GLR mode.
+ Define YYFILL to use in user-defined actions to fill semantic array
+ as needed.
+ Remove dummy use of yystack, as there is now a guaranteed use.
+ (yydoAction): Modify to allow incremental move of semantic values
+ to rhs array when in GLR mode.
+ (yyresolveAction): Ditto.
+ (yyglrShiftDefer): Update comment.
+ (yyresolveStates): Use X == NULL for pointers, not !X.
+ (yyglrReduce): Ditto.
+ (yydoAction): Ditto
+
+ * tests/glr-regr1.at: Rename to ...
+ * tests/glr-regression.at: Add new regression test for the problems
+ described above (adapted from S. Eken).
+ Update copyright notice.
+ * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
+ * tests/Makefile.am: Ditto.
+
+2003-01-28 Paul Eggert <eggert@twinsun.com>
+
+ * data/lalr1.cc: Do not use @output_header_name@ unless
+ b4_defines_flag is set. This fixes two bugs reported by
+ Tim Van Holder in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
+ and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
+
+2003-01-21 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
+ we don't need to worry about yyerrlab1 being reported as an
+ "unused label" by non-GCC C compilers. The downside is that if
+ locations are used then a couple of statements are duplicated each
+ time YYERROR is invoked, but the upside is that the warnings
+ should vanish.
+ (yyerrlab1): Move code to YERROR.
+ (yyerrlab2): Remove. Change uses back to yyerrlab1.
+ This reverts some of the 2002-12-27 change.
+
+2003-01-17 Paul Eggert <eggert@twinsun.com>
+
+ * src/output.c (symbol_printers_output): Fix typo that led
+ to core dump. Problem reported by Antonio Rus in
+ <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
+
+2003-01-13 Akim Demaille <akim@epita.fr>,
+ Quoc Peyrot <chojin@lrde.epita.fr>,
+ Robert Anisko <anisko_r@lrde.epita.fr>
+
+ * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
+ when the stacks contain one element, as the loop would otherwise
+ free the last state, and then use the top state (the one we just
+ popped). This means that the initial elements will not be freed
+ explicitly, as is the case in yacc.c; it is not a problem, as
+ these elements have fake values.
+
+2003-01-11 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS: %expect-violations are now just warnings, reverting
+ to Bison 1.30 and 1.75 behavior. This fixes the GCC 3.2
+ bootstrapping problem reported by Matthias Klose; see
+ <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
+ * src/conflicts.c (conflicts_print): Likewise.
+ * tests/conflicts.at (%expect not enough, %expect too much,
+ %expect with reduce conflicts): Likewise.
+ * doc/bison.texinfo (Expect Decl): Document this. Also mention
+ that the warning is enabled if the number of conflicts changes
+ (not necessarily increases).
+
+ * src/getargs.c (version): Update copyright year.
+
+2003-01-09 Akim Demaille <akim@epita.fr>
+
+ * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
+
+2003-01-08 Paul Eggert <eggert@twinsun.com>
+
+ * Makefile.maint (WGETFLAGS):
+ New macro, containing "-C off" to disable proxy caches.
+ All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
+ (rel-check): Use $(WGET) instead of wget.
+
+2003-01-06 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
+ the GLR paper of Scott, Johnstone and Hussain.
+
+2003-01-04 Paul Eggert <eggert@twinsun.com>
+
+ * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
+ (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
+ * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
+ (EXTRA_LIBRARIES): New var, for liby.a.
+ * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
+ (EXTRA_SCRIPTS): New var, for yacc.
+
+ * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
+ since GNU C++ (as of 3.2.1) does not allow attributes on labels.
+ Problem reported by Nelson H. F. Beebe.
+
+2003-01-03 Paul Eggert <eggert@twinsun.com>
+
+ * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
+ (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
+ when compiling Bison 1.875's `bitset bset = obstack_alloc
+ (bobstack, bytes);'. Problem reported by Nelson H. F. Beebe.
+
+ * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
+ ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
+ grow to a huge size with typical invocation.
+
+ * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
+ Use the pattern recommended by Autoconf 2.57, except also protect
+ against double-definition.
+ * src/system.h: Likewise.
+ Portability issues reported by Nelson H. F. Beebe.
+
+ * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
+ All uses changed. Provide a definition in both C and C++.
+ (yytrue, yyfalse): Define even if defined (__cplusplus).
+
+ * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
+ Reported by Nelson H. F. Beebe.
+
+ * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
+
+2003-01-02 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyerrlab1): Append `;' after attribute, to
+ pacify the buggy "smart preprocessor" in MacOS 10.2.3.
+ Bug reported by Nelson H. F. Beebe.
+
+2003-01-01 Paul Eggert <eggert@twinsun.com>
+
+ * Version 1.875.
+
+2002-12-30 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
+ Moved here from...
+ (<INITIAL>","): Here. This causes stray "," to be treated
+ more uniformly.
+
+ * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
+ last brace in braced code when not in Yacc mode, for compatibility
+ with Bison 1.35. This resurrects the 2001-12-15 patch to
+ src/reader.c.
+
+ * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
+ yystype. This follows up the 2002-12-24 YYSTYPE bug fix.
+
+2002-12-28 Paul Eggert <eggert@twinsun.com>
+
+ * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
+ that of SYM's type. This fixes Debian bug 168069, reported by
+ Thomas Olsson.
+
+2002-12-28 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75f.
+
+ Switch back to the Yacc style of conflict reports, undoing some
+ of the 2002-07-30 change.
+ * doc/bison.texinfo (Understanding): Use Yacc style for
+ conflict reports. Also, use new way of locating rules.
+ * src/conflicts.c (conflict_report):
+ Renamed from conflict_report_yacc, removing the old
+ 'conflict_report'. Translate the entire conflict report at once,
+ so that we don't assume that "," has the same interpretation in
+ all languages.
+ (conflicts_output): Use Yacc-style conflict report for each state,
+ instead of our more-complicated style.
+ (conflicts_print): Use Yacc-style conflict report, except print
+ the input file name when not emulating Yacc.
+ * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
+ Conflicted Reduction, %expect not enough, %expect too much,
+ %expect with reduce conflicts): Switch to Yacc-style conflict reports.
+ * tests/existing.at (GNU Cim Grammar): Likewise.
+ * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
+
+ * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
+ fatal): Don't invoke fflush; it's not needed and it might even be
+ harmful for stdout, as stdout might not be open.
+ * src/reduce.c (reduce_print): Likewise.
+
+2002-12-27 Paul Eggert <eggert@twinsun.com>
+
+ Fix a bug where error locations were not being recorded correctly.
+ This problem was originally reported by Paul Hilfinger in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
+
+ * data/yacc.c (yyparse): New local var yylerrsp, to record the
+ top of the location stack's error locations.
+ (yyerrlab): Set it. When discarding a token, push its location
+ onto yylerrsp so that we don't lose track of the error's end.
+ (yyerrlab1): Now is only the target of YYERROR, so that we can
+ properly record the location of the action that failed. For GCC
+ 2.93 and later, insert an __attribute__ ((__unused__)) to avoid
+ GCC warning about yyerrlab1 being unused if YYERROR is unused.
+ (yyerrlab2): New label, which yyerrlab now falls through to.
+ Compute the error's location by applying YYLLOC_DEFAULT to
+ the locations of all the symbols that went into the error.
+ * doc/bison.texinfo (Location Default Action): Mention that
+ YYLLOC_DEFAULT is also invoked for syntax errors.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+ Error locations include the locations of all the tokens that were
+ discarded, not just the last token.
+
+2002-12-26 Paul Eggert <eggert@twinsun.com>
+
+ * src/files.c: Include quote.h.
+ (compute_output_file_names): Warn if we detect conflicting
+ outputs to the same file. This should catch the misunderstanding
+ exemplified by Debian Bug 165349, reported by Bruce Stephens..
+
+ * src/conflicts.c (conflicts_print): If the user specifies
+ "%expect N", report an error if there are any reduce/reduce
+ conflicts. This is what the manual says should happen.
+ This fixes Debian bug 130890, reported by Anthony DeRobertis.
+ * tests/conflicts.at (%expect with reduce conflicts): New test.
+
+ Don't use m4_include on relative file names, as it doesn't work as
+ desired if there happens to be a file with that name under ".".
+
+ * m4sugar/version.m4: Remove; it was included but it wasn't used.
+ * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
+ * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
+ * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
+ * src/output.c (output_skeleton): Use full path names when
+ specifying a file to include; don't rely on include path, as
+ it's unreliable when the working file contains a file with
+ that name.
+
+2002-12-25 Paul Eggert <eggert@twinsun.com>
+
+ Remove obsolete references to bison.simple and bison.hairy.
+ Problem mentioned by Aubin Mahe in
+ <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
+ * data/glr.c: Comment fix.
+ * doc/bison.1: Remove references. Also, mention "yacc".
+
+ * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
+ with -g option.
+
+ * src/parse-gram.y (declaration): Use enum "report_states" rather
+ than its numeric value 1.
+
+ * src/scan-skel.l ("@output ".*\n): Close any old yyout before
+ opening a new one. This fixes Debian bug 165349, reported by
+ Bruce Stephens.
+
+2002-12-24 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75e.
+
+ * Makefile.maint (cvs-update): Don't assume that the shell
+ supports $(...), as Solaris sh doesn't.
+
+ * src/parse-gram.y (lloc_default): Remove test for empty
+ nonterminals at the end, since it didn't change the result.
+
+2002-12-24 Paul Eggert <eggert@twinsun.com>
+
+ If the user does not define YYSTYPE as a macro, Bison now declares it
+ using typedef instead of defining it as a macro. POSIX requires this.
+ For consistency, YYLTYPE is also declared instead of defined.
+
+ %union directives can now have a tag before the `{', e.g., the
+ directive `%union foo {...}' now generates the C code
+ `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
+ The default union tag is `YYSTYPE', for compatibility with Solaris 9
+ Yacc. For consistency, YYLTYPE's struct tag is now `YYLTYPE'
+ instead of `yyltype'.
+
+ `yystype' and `yyltype' are now obsolescent macros instead of being
+ typedefs or tags; they are no longer documented and will be
+ withdrawn in a future release.
+
+ * data/glr.c (b4_location_type): Remove.
+ (YYSTYPE): Renamed from yystype.
+ (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
+ (struct YYLTYPE): Renamed from struct yyltype.
+ (YYLTYPE): Renamed from yyltype.
+ (yyltype, yystype): New (and obsolescent) macros,
+ for backward compatibility.
+ * data/yacc.c: Likewise.
+
+ * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
+ does not specify a union tag. This is for compatibility with
+ Solaris 9 yacc.
+
+ * src/parse-gram.y (add_param): 2nd arg is now char * not char
+ const *, since it is now modified by stripping surrounding { }.
+ (current_braced_code): Remove.
+ (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
+ PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
+ trailing " {...}". Now of type <chars>.
+ (grammar_declaration): Adjust to bundled tokens.
+ (code_content): Remove; stripping is now done by add_param.
+ (print_token_value): Print contents of bundled tokens.
+ (token_name): New function.
+
+ * src/reader.h (braced_code, current_braced_code): Remove.
+ (token_name): New decl.
+
+ * src/scan-gram.l (handle_dollar, handle_at): Now takes int
+ token_type, not braced_code code_kind. All uses changed.
+ (SC_PRE_CODE): New state, for scanning after a keyword that
+ has (or usually has) an immediately-following braced code.
+ (token_type): New local var, to keep track of which token type
+ to return when scanning braced code.
+ (<INITIAL>"%destructor", <INITIAL>"%lex-param",
+ <INITIAL>"%parse-param", <INITIAL>"%printer",
+ <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
+ instead of returning a token type immediately.
+ (<INITIAL>"{"): Set token type.
+ (<SC_BRACED_CODE>"}"): Use it.
+ (handle_action_dollar, handle_action_at): Now returns bool
+ indicating success. Fail if ! current_rule; this prevents a core dump.
+ (handle_symbol_code_dollar, handle_symbol_code_at):
+ Remove; merge body into caller.
+ (handle_dollar, handle_at): Complain in invalid contexts.
+
+ * NEWS, doc/bison.texinfo: Document the above.
+ * NEWS: Fix years and program names in copyright notice.
+
+2002-12-17 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
+ Reporting, Table of Symbols): Omit mentions of %lex-param and
+ %parse-param from the documentation for now.
+
+2002-12-15 Paul Eggert <eggert@twinsun.com>
+
+ Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
+ GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
+ lookahead symbol, and which sets yychar in parser actions) and it
+ disagreed with the Bison documentation. Bug
+ reported by Andrew Walrond.
+
+ * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
+ as the caller now does that.
+ (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
+ (YYEMPTY): Parenthesize right hand side, since others use it.
+ (yyparse): Don't assume that our generated code is the only code
+ that sets yychar.
+
+2002-12-13 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75d.
+
+ POSIX requires a "yacc" command.
+ * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
+ (MOSTLYCLEANFILES): Add yacc.
+ (yacc): New rule.
+ * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
+ as an alias for bison y.
+
+ * po/LINGUAS: Add da.
+
+ * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
+ problem with latest <getopt.h>.
+ (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
+
+ * doc/fdl.texi: Upgrade to 1.2.
+ * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
+ lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
+ lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
+ gnulib.
+ * config/install-sh: Sync with autotools.
+
+ Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
+ * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
+ locations are requested.
+ (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
+ locations are requested.
+
+2002-12-12 Paul Eggert <eggert@twinsun.com>
+
+ Remove unportable casts and storage allocation tricks.
+ While we're at it, remove almost all casts, since they
+ usually aren't needed and are a sign of trouble.
+
+ * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
+
+ * src/derives.c (derives_compute): Do not subtract NTOKENS from
+ the pointer DSET returned by malloc; this isn't portable.
+ Instead, always use DSET[i - NTOKENS] rather than DSET[i].
+ Similarly for DERIVES.
+ * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
+ * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
+ * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
+
+ * src/derives.c (derives_compute): Do not bother invoking
+ int_of_rule_number, since rule numbers are integers.
+
+ * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
+ rather than XMALLOC (char, N).
+
+ * src/files.c (filename_split): Rewrite to avoid cast.
+
+ * src/gram.h (symbol_number_as_item_number,
+ item_number_as_symbol_number, rule_number_as_item_number,
+ item_number_as_rule_number):
+ Now inline functions rather than macros, to avoid casts.
+ * src/state.h (state_number_as_int): Likewise.
+ * src/tables.c (state_number_to_vector_number,
+ symbol_number_to_vector_number): Likewise.
+
+ * src/gram.h (int_of_rule_number): Remove; no longer used.
+
+ * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
+ since the resulting storage is always stored into.
+
+ * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
+ where it's needed.
+
+ * src/muscle_tab.c (muscle_m4_output):
+ Now inline. Return bool, not int.
+ * src/state.c (state_compare): Likewise.
+ * src/symtab.c (symbol_check_defined,
+ symbol_check_alias_consistency, symbol_pack, symbol_translation,
+ hash_compare_symbol, hash_symbol):
+ Likewise.
+ * src/uniqstr.c (uniqstr_print): Likewise.
+ * src/muscle_tab.c (muscle_m4_output_processor):
+ New function, to avoid casts.
+ * src/state.c (state_comparator, stage_hasher): Likewise.
+ * src/symtab.c (symbol_check_defined_processor,
+ symbol_check_alias_consistency_processor, symbol_pack_processor,
+ symbol_translation_processor, hash_symbol_comparator,
+ hash_symbol_hasher): Likewise.
+ * src/uniqstr.c (uniqstr_print_processor): Likewise.
+ * src/muscle_tab.c (muscles_m4_output):
+ Use new functions instead of casting old functions unportably.
+ * src/state.c (state_hash_new): Likewise.
+ * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
+ symbols_token_translations_init):
+ Likewise.
+ * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
+
+ * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
+ var instead of casting to long, to avoid casts.
+ (prepare_states): Use MALLOC rather than alloca, so that we don't
+ have to worry about alloca.
+ * src/state.c (state_hash_lookup): Likewise.
+
+ * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
+ local var instead of casting to unsigned char, to avoid casts.
+
+ * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
+ STATE_ALLOC): Remove.
+ (transitions_new, errs_new, reductions_new, state_new): Use malloc
+ rather than calloc, and use offsetof to avoid allocating slightly
+ too much storage.
+ (state_new): Initialize all members.
+
+ * src/state.c (state_hash): Use unsigned accumulator, not signed.
+
+ * src/symtab.c (symbol_free): Remove; unused.
+ (symbol_get): Remove cast in lhs of assignment.
+ (symbols_do): Now static. Accept generic arguments, not
+ hashing-related ones.
+
+ * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
+ (symbol_processor): Remove.
+ (symbols_do): Remove decl; now static.
+
+ * src/system.h (alloca): Remove; decl no longer needed.
+ (<stddef.h>): Include, for offsetof.
+ (<inttypes.>, <stdint.h>): Include if available.
+ (uintptr_t): New type, if system lacks it.
+ (CALLOC, MALLOC, REALLOC): New macros.
+ All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
+ new macros.
+
+ * src/tables.c (table_size): Now int, to pacify GCC.
+ (table_grow, table_ninf_remap): Use signed table size.
+ (save_row): Don't bother initializing locals when not needed.
+ (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
+ * src/uniqstr.c (hash_compare_uniqstr): Likewise.
+
+ * src/vcg.h: Correct misspellings.
+
+ * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
+
+
+ * src/getargs.c (getargs): Don't assume EOF == -1.
+
+2002-12-09 Paul Eggert <eggert@twinsun.com>
+
+ Change identifier spellings to avoid collisions with names
+ that are reserved by POSIX.
+
+ Don't use names ending in _t, since POSIX reserves them.
+ For consistency, remove _e and _s endings -- they're weren't
+ needed to remove ambiguity. All uses changed.
+ * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
+ turn was just renamed from struniq_t.
+ * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
+ which in turn was just renamed from struniq_processor_t.
+ (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
+ in turn was renamed from hash_compare_struniq_t.
+ * src/LR0.c (struct state_list): Renamed from struct state_list_s.
+ (state_list): Renamed from state_list_t.
+ * src/assoc.h (assoc): Renamed from assoc_t.
+ * src/conflicts.c (enum conflict_resolution): Renamed from
+ enum conflict_resolution_e.
+ * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
+ (rule_list): Renamed from rule_list_t.
+ * src/getargs.h (enum trace): Renamed from enum trace_e.
+ (enum report): Renamed from enum report_e.
+ * src/gram.h (item_number): Renamed from item_number_t.
+ (rule_number): Renamed from rule_number_t.
+ (struct rule_s): Remove the "rule_s" part; not used.
+ (rule): Renamed from rule_t.
+ (rule_filter): Renamed from rule_filter_t.
+ * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
+ (goto_list): Renamed from goto_list_t.
+ * src/lalr.h (goto_number): Renamed from goto_number_t.
+ * src/location.h (location): Renamed from location_t.
+ * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
+ and moved here from:
+ * src/muscle_tab.h (muscle_entry_t): here.
+ * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
+ (rule_list): Renamed from rule_list_t.
+ * src/print_graph.c (static_graph): Renamed from graph.
+ * src/reader.h (braced_code): Renamed from braced_code_t.
+ Remove brace_code_e tag.
+ * src/relation.h (relation_node): Renamed from relation_node_t.
+ (relation_nodes): Renamed from relation_nodes_t.
+ (relation): Renamed from relation_t.
+ * src/state.h (state_number): Renamed from state_number_t.
+ (struct state): Renamed from struct state_s.
+ (state): Renamed from state_t.
+ (transitions): Renamed from transitions_t. Unused (and
+ misspelled) transtion_s tag removed.
+ (errs): Renamed from errs_t. Unused errs_s tag removed.
+ (reductions): Renamed from reductions_t. Unused tag
+ reductions_s removed.
+ * src/symlist.h (symbol_list): Renamed from symbol_list_t.
+ (struct symbol_list): Renamed from struct symbol_list_s.
+ * src/symtab.h (symbol_number): Renamed from symbol_number_t.
+ (struct symbol): Renamed from struct symbol_s.
+ (symbol): Renamed from symbol_t.
+ * src/tables.c (vector_number): Renamed from vector_number_t.
+ (action_number): Renamed from action_t.
+ * src/tables.h (base_number): Renamed from base_t.
+ * src/vcg.h (enum color): Renamed from enum color_e.
+ (enum textmode): Renamed from enum textmode_e.
+ (enum shape): Renamed from enum shape_e.
+ (struct colorentry): Renamed from struct colorentry_s.
+ (struct classname): Renamed from struct classname_s.
+ (struct infoname): Renamed from struct infoname_s.
+ (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
+ (enum decision): Renamed from enum decision_e.
+ (enum orientation): Renamed from enum orientation_e.
+ (enum alignment): Renamed from enum alignment_e.
+ (enum arrow_mode): Renamed from enum arrow_mode_e.
+ (enum crossing_type): Renamed from enum crossing_type_e.
+ (enum view): Renamed from enum view_e.
+ (struct node): Renamed from struct node_s.
+ (node): Renamed from node_t.
+ (enum linestyle): Renamed from enum linestyle_e.
+ (enum arrowstyle): Renamed from enum arrowstyle_e.
+ (struct edge): Renamed from struct edge.
+ (edge): Renamed from edge_t.
+ (struct graph): Renamed from struct graph_s.
+ (graph): Renamed from graph_t.
+ * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
+ Rename value_t -> value.
+ * tests/input.at (Torturing the Scanner): Rename value_t -> value,
+ value_t_as_yystype -> value_as_yystype.
+
+ Don't include <errno.h> in the mainstream code, since it
+ reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
+ * lib/get-errno.c, lib/get-errno.h: New files.
+ * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
+ get-errno.c.
+ * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
+ * src/output.c (output_skeleton): Likewise.
+ * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
+ instead of errno.
+ (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
+ Likewise.
+ (handle_action_dollar, handle_action_at): Likewise.
+ * src/system.h: Do not include <errno.h>.
+ (TAB_EXT): Renamed from EXT_TAB.
+ (OUTPUT_EXT): Renamed from EXT_OUTPUT.
+
+ Avoid str[a-z]*, since <string.h> reserves that name space.
+ Change all instances of "struniq" in names to "uniqstr", and
+ likewise for "STRUNIQ" and "UNIQSTR".
+ * src/uniqstr.c: Renamed from src/struniq.c.
+ * src/uniqstr.h: Renamed from src/struniq.h.
+ * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
+ * src/files.c (strsuffix): Remove; unused.
+ (concat2): Renamed from stringappend. Now static.
+ * src/files.h (strsuffix, stringappend): Remove; unused.
+ * src/parse-gram.y (<chars>): Renamed from <string>.
+ (<uniqstr>): Renamed from <struniq>.
+ * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
+ * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
+ (struct graph_s.expand): Renamed from struct graph_s.stretch.
+ * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
+ (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
+ (N_EXPAND): Renamed from N_STRETCH.
+
+ Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
+ * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
+ * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
+ Remove; unused.
+ * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
+ * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
+ * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
+ * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
+ (BASE_MAXIMUM): Renamed from BASE_MAX.
+ (BASE_MINIMUM): Renamed from BASE_MIN.
+ (ACTION_MAX): Remove; unused.
+ (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
+ Unnecessary casts removed from above defines.
+
+
+ Fix misspelling in names.
+ * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
+ * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
+ G_NODE_ALIGNEMENT.
+
+
+ * lib/timevar.c (timevar_report): Renamed from time_report,
+ for consistency with other names.
+ * lib/timevar.h (timevar_report): New decl.
+ * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
+
+
+ Sort include-file uses.
+
+ Reorder all include files under src to be in the order "system.h".
+ then the ../lib include files in angle brackets (alphabetized),
+ then the . include files in double-quotes (alphabetized). Fix
+ dependency breakages encountered in this process, as follows:
+ * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
+ * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
+ * src/state.h: Include "symtab.h".
+
+2002-12-08 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
+ since this causes problems when __file__ contains character
+ sequences like "@" that are treated specially by src/scan-skel.l.
+ Instead, just use the file's basename. This fixes the bug
+ reported by Martin Mokrejs in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
+
+2002-12-06 Paul Eggert <eggert@twinsun.com>
+
+ Add support for rules that do not have trailing semicolons, as
+ POSIX requires. Improve the quality of locations in Bison
+ diagnostics.
+
+ * src/location.c: Include <quotearg.h>.
+ (empty_location): Now const.
+ (location_print): New function. Follow the recommendation of the
+ GNU Coding Standards for locations that span file boundaries.
+ * src/location.h: Do not include <quotearg.h>; no longer needed.
+ (boundary): New type.
+ (location_t): Use it. This allows locations to span file boundaries.
+ All member uses changed: file -> start.file or end.file (as needed),
+ first_line -> start.line, first_column -> start.column,
+ last_line -> end.line, last_column -> end.column.
+ (equal_boundaries): New function.
+ (LOCATION_RESET, LOCATION_STEP): Remove.
+ (LOCATION_PRINT): Remove. All callers changed to use location_print.
+ (empty_location): Now const.
+ (location_print): New decl.
+ * src/parse-gram.y (lloc_default): New function, which handles
+ empty locations more accurately.
+ (YYLLOC_DEFAULT): Use it.
+ (%token COLON): Remove.
+ (%token ID_COLON): New token.
+ (rules): Use it.
+ (declarations, rules): Remove trailing semicolon.
+ (declaration, rules_or_grammar_declaration):
+ Allow empty (";") declaration.
+ (symbol_def): Remove empty actions; no longer needed.
+ (rules_or_grammar_declaration): Remove trailing semicolon.
+ (semi_colon.opt): Remove.
+ * src/reader.h: Include location.h.
+ (scanner_cursor): New decl.
+ * src/reduce.c (nonterminals_reduce): Use warn_at rather than
+ rolling our own.
+ * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
+ of *loc.
+ (STEP): Remove. No longer needed, now that adjust_location does
+ the work. All uses removed.
+ (scanner_cursor): New var.
+ (adjust_location): Renamed from extend_location. It now sets
+ *loc and adjusts the scanner cursor. All uses changed.
+ Don't bother testing for CR.
+ (handle_syncline): Remove location arg; now updates scanner cursor.
+ All callers changed.
+ (unexpected_end_of_file): Now accepts start boundary of token or
+ comment, not location. All callers changed. Update scanner cursor,
+ not the location.
+ (SC_AFTER_IDENTIFIER): New state.
+ (context_state): Renamed from c_context. All uses changed.
+ (id_loc, code_start, token_start): New local vars.
+ (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context. Move all
+ processing of Yacc white space and equivalents here.
+ (<INITIAL>{id}): Save id_loc. Begin state SC_AFTER_IDENTIFIER
+ instead of returning ID immediately, since we need to search for
+ a subsequent colon.
+ (<INITIAL>"'", "\""): Save token_start.
+ (<INITIAL>"%{", "{", "%%"): Save code_start.
+ (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
+ (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
+ BEGIN context_state at end, not INITIAL.
+ (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
+ <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
+ Return correct token start.
+ (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
+ the start of a character, string or multiline comment is found.
+ * tests/conflicts.at (S/R in initial, Defaulted Conflicted
+ Reduction): Adjust reported locations to match the more-precise
+ results now expected.
+ * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
+ * tests/reduce.at (Useless Rules, Reduced Automaton,
+ Underivable Rules): Likewise.
+ * tests/regression.at (Invalid inputs): No longer `expecting ";"
+ or "|"' now that so many other tokens are allowed by the new grammar.
+
+ * src/complain.h (current_file): Remove duplicate decl;
+ current_file is now owned by files.h.
+ * src/complain.c, src/scan-gram.l: Include files.h.
+
+2002-12-06 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
+ promotes to int; it might be unsigned int.
+ * data/yacc.c (yy_reduce_print): Likewise.
+
+ * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
+ be #defined in the prologue, not in the Bison declarations.
+ This fixes Debian Bug 102878, reported by Shaul Karl.
+
+2002-12-02 Paul Eggert <eggert@twinsun.com>
+
+ * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
+ * lib/strtoul.c: New file, from gnulib.
+ This fixes a porting bug reported by Peter Klein in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
+
+2002-11-30 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
+ and put only a forward declaration in the prologue. This is for
+ consistency with the other scanner helper functions.
+
+ Type clashes now generate warnings, not errors, since it
+ appears that POSIX may allow some grammars with type clashes.
+ * src/reader.c (grammar_current_rule_check): Warn about
+ type clashes instead of complaining.
+ * tests/input.at (Type Clashes): Expect warnings, not complaints.
+
+ Add Yacc library, since POSIX requires it.
+ * doc/bison.texinfo (Yacc Library): New node. Regenerate top menu.
+ * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
+ * lib/main.c, lib/yyerror.c: New files.
+
+ gram_error can be static; it need not be extern.
+ * src/reader.h (gram_error): Remove decl.
+ * src/parse-gram.y (gram_error): Now static. Add static decl.
+ (print_token_value): Omit parameter names from forward decl,
+ for consistency.
+
+2002-11-29 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo: Emphasize that yylex and yyerror must
+ be declared before being used. E.g., one should typically
+ declare them in the prologue. Use GNU coding style in examples.
+ Put "const" consistently after the type it modifies. Mention
+ that C99 supports "inline". Mention that yyerror traditionally
+ returns "int".
+
+ %parse-param and %lex-param now take just one argument, the
+ declaration; the argument name is deduced from the declaration.
+
+ * doc/bison.texinfo (Parser Function, Pure Calling, Error
+ Reporting, Table of Symbols): Document this.
+ * src/parse-gram.y (add_param): New function.
+ (COMMA): Remove.
+ (declaration): Implement new rule for %parse-param and %lex-param.
+ * src/scan-gram.l: "," now elicits a warning, rather than being
+ a token; this is more compatible with byacc.
+ * tests/calc.at (Simple LALR Calculator): Adopt new convention.
+
+2002-11-27 Paul Eggert <eggert@twinsun.com>
+
+ Rename identifiers to avoid real and potential collisions.
+
+ * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
+ to avoid collision with lex macro described by Bruce Lilly in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
+ * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
+ * src/parse-gram.y (print_token_value): Renamed from yyprint.
+ All uses changed.
+ (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove. All uses changed.
+ The name "yycontrol" violates the name space rules, and this stuff
+ wasn't being used anyway.
+ (input): Remove action; this stuff wasn't being used.
+ (gram_error): Rename local variable yylloc -> loc.
+ * src/reader.h (struct gram_control_s, gram_control_t): Remove.
+ (YY_DECL): Don't use "yy" at start of local variables.
+ All uses changed, e.g., yylloc -> loc.
+ * src/scan-gram.l (STEP): Renamed from YY_STEP. All uses changed.
+ (STRING_GROW): Renamed from YY_OBS_GROW. All uses changed.
+ (STRING_FINISH): Renamed from YY_OBS_FINISH. All uses changed.
+ (STRING_FREE): Renamed from YY_OBS_FREE. All uses changed.
+
+ * src/parse-gram.y (gram_error): loc is now const *.
+ * src/reader.h (gram_error): Likewise.
+
+2002-11-24 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75c.
+
+ * tests/actions.at (Actions after errors): Use an output format
+ more similar to that of the Printers and Destructors test.
+ Test the position of the ';' token too.
+ (Printers and Destructors): Likewise.
+ (Printers and Destructors: %glr-parser): Remove for now, to avoid
+ unnecessarily alarming people when the test fails.
+
+ * data/yacc.c (yyerrlab1): Move this label down, so that the
+ parser does not discard the lookahead token if the user code
+ invokes YYERROR. This change is required for POSIX conformance.
+
+ * lib/error.c: Sync with gnulib.
+
+2002-11-22 Paul Eggert <eggert@twinsun.com>
+
+ * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
+ * lib/mbswidth.c, lib/mbswidth.h: Likewise.
+ * lib/xmalloc.c: Likewise.
+
+2002-11-20 Paul Eggert <eggert@twinsun.com>
+
+ * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
+
+2002-11-20 Paul Eggert <eggert@twinsun.com>
+
+ Avoid use of <assert.h>, as the GNU Coding Standards hint that one
+ should use `if (! x) abort ();' rather than `assert (x);', and
+ anyway it's one less thing to worry about configuring.
+
+ * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
+ and replace all instances of assert with abort.
+ * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
+
+ * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
+ yyresolveAction, yyprocessOneStack): Use abort rather than assert.
+ * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
+ hash_find_entry, hash_rehash, hash_insert): Likewise.
+ * src/conflicts.c (resolve_sr_conflict): Likewise.
+ * src/lalr.c (set_goto_map, map_goto): Likewise.
+ * src/nullable.c (nullable_compute): Likewise.
+ * src/output.c (prepare_rules, token_definitions_output): Likewise.
+ * src/reader.c (packgram, reader): Likewise.
+ * src/state.c (state_new, state_free, state_transitions_set,
+ state_reduction_find): Likewise.
+ * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
+ symbol_pack): Likewise.
+ * src/tables.c (conflict_row, pack_vector): Likewise.
+ * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
+ get_layoutalgorithm_str, get_decision_str, get_orientation_str,
+ get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
+ get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
+
+ * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
+ (ARGMATCH_CONSTRAINT): New macro.
+ (ARGMATCH_ASSERT): Use it.
+
+ * src/system.h (verify): New macro.
+ * src/getargs.c (trace_argmatch, report_argmatch): Use verify
+ rather than assert.
+ * src/tables.c (tables_generate): Likewise.
+
+ * src/struniq.c (struniq_assert): Now returns void, and aborts
+ if the assertion is false.
+ (struniq_assert_p): Remove.
+ * src/struniq.h: Likewise.
+
+2002-11-18 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yygetLRActions): Replace `yyindex' with
+ `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
+ This fixes the regression with Sun ONE Studio 7 cc that I reported in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
+
+2002-11-18 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
+ space.
+ From Tim Van Holder.
+
+2002-11-17 Paul Eggert <eggert@twinsun.com>
+
+ Pacify Sun ONE Studio 7 lint. Also, rename "ParseError"
+ to "SyntaxError" for consistency with my 2002-11-15 change.
+
+ * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
+ not define to {}, since this breaks the common use of `YYDPRINTF
+ ((...));' if a single statement is desired (e.g. before `else').
+ Work around GCC warnings by surrounding corresponding calls with
+ {} if needed.
+ (yyhasResolvedValue): Remove unused function.
+ (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
+ loop body.
+ (yyreportSyntaxError): Renamed from yyreportParseError.
+ (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
+ All uses changed.
+ * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
+ extern when possible. Remove unused initializations.
+
+2002-11-16 Akim Demaille <akim@epita.fr>
+
+ Augment the similarity between GLR and LALR traces.
+
+ * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
+ (YY_REDUCE_PRINT): New.
+ (yyparse): Use them.
+ * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
+ YYDPRINT here.
+ (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
+ state reached after the reduction/recovery, since...
+ (yyparse, yyprocessOneStack): Report the state we are entering in.
+
+2002-11-16 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
+ Add support for --trace=skeleton.
+ * src/scan-skel.l: %option debug.
+ Scan strings of non-@ or \n instead of character by character.
+ (scan_skel): Handle trace_skeleton.
+ (QPUTS): New.
+ (@output_parser_name@, @output_header_name@): ``Restore'' their
+ support (used to be M4 macros).
+ * data/yacc.c: Quote larger chunks, a la glr.c.
+ * data/lalr1.cc: Likewise.
+ The header guards are no longer available, so use some other
+ string than `YYLSP_NEEDED'.
+
+2002-11-16 Akim Demaille <akim@epita.fr>
+
+ Make the ``Printers and Destructors'' test more verbose, taking
+ `yacc.c''s behavior as (possibly wrong) reference.
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
+ instead of fprint on stdout.
+ Set and report the last_line of the symbols.
+ Consistently display values and locations.
+
+2002-11-16 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c: Avoid over-quoting of __line__ and __file__.
+
+2002-11-15 Paul Eggert <eggert@twinsun.com>
+
+ * tests/actions.at (Actions after errors): New test case.
+
+ * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
+ src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
+ tests/action.at, tests/calc.at, tests/conflicts.at,
+ tests/cxx-type.at, tests/regression.at:
+ "parse error" -> "syntax error" for POSIX compatibility.
+ "parsing stack overflow..." -> "parser stack overflow" so
+ that code matches Bison documentation.
+
+2002-11-15 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (declaration): Have %parse-param and %lex-param
+ take two BRACED_CODE, not two string_content.
+ Free the scanner's obstack when we are done.
+ (code_content): New.
+ * tests/calc.at: Adjust.
+ * doc/bison.texinfo: Adjust.
+ Also, make sure to include the `,' for these declarations.
+
+2002-11-15 Tim Van Holder <tim.van.holder@pandora.be>
+
+ * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
+ definition; avoids potential autoreconf problems.
+
+2002-11-15 Akim Demaille <akim@epita.fr>
+
+ Always check the value returned by yyparse.
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
+ returned by yyparse.
+ (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
+ Adjust calls.
+ * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
+ returned by yyparse.
+
+2002-11-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c (yyFail): Always set yyerrflag. Corrects regression
+ on input.at test.
+
+2002-11-14 Paul Eggert <eggert@twinsun.com>
+
+ * src/output.c (output_skeleton): Call xfopen instead of
+ duplicating xfopen's body.
+
+ Fix bugs reported by Nelson H. F. Beebe in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
+
+ * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
+ "$CC -E foo.h" is allowed, as this doesn't work with the Portland
+ Group compiler. Instead, use "$CC -E bar.c". Include the .h
+ file twice in the grammar, as an extra check.
+
+ * tests/input.at (Torturing the Scanner): Surround the
+ backslash-newline tests with "#if 0", to make it less likely that
+ we'll run into compiler bugs. Bring back solitary \ inside
+ comment, but add a closing comment to work around HP C bug. Don't
+ test backslash-newline in C character constant.
+
+2002-11-14 Akim Demaille <akim@epita.fr>
+
+ * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
+ status of the compiler.
+ Calling `exit 1' is no longer needed.
+ Reported by Nelson H. F. Beebe.
+
+2002-11-14 Akim Demaille <akim@epita.fr>
+
+ * tests/atlocal.in (CPPFLAGS): We have config.h.
+ * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
+ New.
+ * tests/actions.at, tests/calc.at, tests/conflicts.at,
+ * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
+ * tests/regression.at, tests/torture.at: Use them for all the
+ grammars that are to be compiled.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
+ * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
+ * doc/bison.texinfo (GLR Parsers): Document `inline'.
+
+2002-11-14 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Various formatting changes (alignments in
+ samples, additional @group/@end group, GCS in samples.
+ Use @deffn instead of simple @table to define the directives,
+ macros, variables etc.
+
+2002-11-13 Paul Eggert <eggert@twinsun.com>
+
+ Fix some bugs reported by Albert Chin-A-Young in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
+
+ * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
+ -o c"; the HP C compiler chatters during compilation.
+ Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
+ * tests/headers.at (export YYLTYPE): Likewise.
+
+ * tests/input.at (Torturing the Scanner): Remove lines containing
+ solitary backslashes, as they tickle a bug in the HP C compiler.
+
+ * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
+ comments, since they're not portable. Use GNU coding style.
+
+2002-11-13 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c: Leave bigger chunks of quoted text.
+ (YYDSYMPRINTF): New.
+ Use it to report symbol activities.
+ * data/glr.c (YYDSYMPRINTF): New.
+ Use it.
+
+2002-11-12 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75b.
+
+ * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
+ (yyglrReduce): Return yyok, not 0.
+ This should avoid the enumerated-type warnings reported
+ by Nelson H. F. Beebe in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
+
+ * lib/bbitset.h (BITSET_INLINE): Remove.
+ * lib/bitset.h [! BITSET_INLINE]: Remove.
+ (bitset_set, bitset_reset, bitset_test): Rename local vars
+ to avoid shadowing warnings by GCC.
+
+ * data/glr.c (inline): Remove #define. It's the user's
+ responsibility to #define it away, just like 'const'.
+ This fixes one of the bugs reported by Nelson H. F. Beebe in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
+
+ * Makefile.maint (po-check): Scan .l and .y files instead of the
+ .c and the .h files that they generate. This fixes the bug
+ reported by Tim Van Holder in:
+ <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
+ Look for N_ as well as for _. Try to avoid matching #define for
+ N_ and _.
+ * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
+ src/system.h. Add src/parse-gram.y, src/scan-gram.l.
+ * src/scan-gram.l: Revamp regular expressions so that " and '
+ do not confuse xgettext.
+
+ * src/struniq.h (struniq_new): Do not declare the return type
+ to be 'const'; this violates the C standard.
+ * src/struniq.c (struniq_new): Likewise.
+
+2002-11-12 Albert Chin-A-Young <china@thewrittenword.com>
+
+ * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
+ duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
+ linker.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Sync with Autoconf:
+ (local_updates): New.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * po/POTFILES.in (src/lalr.c, src/state.c): Remove
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
+ locations.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
+ not yyvalue.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
+ Use it to test the GLR parser.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
+ defines it.
+ * data/glr.c (yystos): New.
+ (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
+ (YYDSYMPRINT): New.
+ (yyval): Don't define it, it is handled via M4.
+ (yyrecoverParseError): Free verbosely the discarded symbols.
+ * data/yacc.c (yysymprint): Remove, rather...
+ (b4_yysymprint_generate): invoke.
+ * data/c.m4 (b4_yysymprint_generate): New.
+ Accept pointers as arguments, as opposed to the version from
+ yacc.c.
+ (b4_yydestruct_generate): Likewise.
+ * tests/cations.at (Printers and Destructors): Use Bison directives
+ instead of CPP macros.
+ Don't rely on internal details.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
+ * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
+ Don't work on yychar (i.e., do set it to YYEMPTY, don't match
+ it against YYEMPTY and so forth), work on yytoken (i.e., set
+ it to YYEMPTY etc.).
+ (yydestruct): Replace with a b4_yydestruct_generate invocation.
+ (b4_symbol_actions): Remove.
+ * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
+ for 0, end-of-input.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Destructor Decl): New.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/tables.c (tables_generate): Use free for pointers that
+ cannot be NULL, not XFREE.
+ (pack_vector): Use assert, not fatal, for bound violations.
+ * src/state.c (state_new): Likewise.
+ * src/reader.c (reader): Likewise.
+ * src/lalr.c (set_goto_map): Likewise.
+ * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
+ the file name.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l, src/reader.h (scanner_last_string_free):
+ Restore.
+ * src/scan-gram.l (last_string): Is global to the file, not to
+ yylex.
+ * src/parse-gram.y (input): Don't append the epilogue here,
+ (epilogue.opt): do it here, and free the scanner's obstack.
+ * src/reader.c (epilogue_set): Rename as...
+ (epilogue_augment): this.
+ * data/c.m4 (b4_epilogue): Defaults to empty.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (long_options): Remove duplicates.
+ * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
+ Remove.
+ * doc/bison.rnh: Remove.
+ * doc/bison.texinfo (VMS Invocation): Remove.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/struniq.h, src/struniq.c (struniq_t): Is const.
+ (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
+
+ Use struniq for symbols.
+
+ * src/symtab.h (symbol_t): The tag member is a struniq.
+ (symbol_type_set): Adjust.
+ * src/symtab.c (symbol_new): Takes a struniq.
+ (symbol_free): Don't free the tag member.
+ (hash_compare_symbol_t, hash_symbol_t): Rename as...
+ (hash_compare_symbol, hash_symbol): these.
+ Use the fact that tags as struniqs.
+ (symbol_get): Use struniq_new.
+ * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
+ Returns a strniq.
+ * src/reader.h (merger_list, grammar_currentmerge_set): The name
+ and type members are struniqs.
+ * src/reader.c (get_merge_function)
+ (grammar_current_rule_merge_set): Adjust.
+ (TYPE, current_type): Are struniq.
+
+ Use struniq for file names.
+
+ * src/files.h, src/files.c (infile): Split into...
+ (grammar_file, current_file): these.
+ * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
+ * src/reduce.c (reduce_print): Likewise.
+ * src/getargs.c (getargs): Likewise.
+ * src/complain.h, src/complain.c: Likewise.
+ * src/main.c (main): Call struniqs_new early enough to use it for
+ file names.
+ Don't free the input file name.
+
+2002-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (symbol_free): Remove dead deactivated code:
+ type_name are properly removed.
+ Don't use XFREE to free items that cannot be NULL.
+ * src/struniq.h, src/struniq.c: New.
+ * src/main.c (main): Initialize/free struniqs.
+ * src/parse-gram.y (%union): Add astruniq member.
+ (yyprint): Adjust.
+ * src/scan-gram.l (<{tag}>): Return a struniq.
+ Free the obstack bit that used to store it.
+ * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
+
+2002-11-11 Paul Eggert <eggert@twinsun.com>
+
+ Revamp to fix many (but not all) of the C- and M4-related quoting
+ problems. Among other things, this fixes the Bison bug reported
+ by Jan Hubicka when processing the Bash grammar; see:
+ <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
+
+ Use new @ escapes consistently. Represent brackets with @{ and @}
+ rather than @<:@ and @:>@, since this works a bit better with dumb
+ editors like vi. Represent @ with @@, since @ is now consistently
+ an escape. Use @oline@ and @ofile@ rather than __oline__ and
+ __ofile__, to avoid unexpected expansions. Similarly, use @output
+ rather than #output.
+
+ * data/c.m4 (b4_copyright): Omit file name from comment, since
+ the file name could contain "*/".
+ (b4_synclines_flag): Don't quote the 2nd argument; it should already
+ be quoted. All uses changed.
+
+ * data/glr.c: Use new @ escapes consistently.
+ (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
+ b4_output_header_suffix, b4_output_header_name, b4_header_guard):
+ Remove, since they couldn't handle arbitrary characters in file
+ names.
+ * data/lalr1.cc: Likewise.
+ * data/yacc.c: Likewise.
+
+ * src/files.c (output_infix): Remove; all uses removed.
+ * src/files.h: Likewise.
+
+ * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
+ mishandled funny characters in file names, and anyway it isn't
+ needed any more.
+ * data/yacc.c: Likewise.
+ * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
+
+ * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
+ * data/yacc.c: Likewise.
+
+ * src/muscle_tab.c: Include quotearg.h, since we need to quote C
+ strings now.
+ (muscle_init): Quote filename as a C string.
+ * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
+ (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
+ * src/output.c (escaped_file_name_output): New function.
+ (prepare_symbols): Quote tokens for M4.
+ (prepare): Don't insert output_infix, output_prefix,
+ output_parser_name, output_header_name; this is now down by scan-skel.
+ Insert skeleton as a C string.
+
+ * src/output.c (user_actions_output, symbol_destructors_output,
+ symbol_printers_output): Quote filenames for C and M4.
+ * src/reader.c (prologue_augment, epilogue_set): Likewise.
+
+ * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
+ escapes other than \\ and \'; this simplifies the code.
+ (<SC_STRING>): Likewise, for \\ and \".
+ (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
+ SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
+ Use new escapes @{ and @} for [ and ].
+
+ * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
+ them with auto vars.
+ Switch to new escape scheme, where @ is the escape character uniformly.
+ Abort if a stray escape character is found. Avoid unbounded input
+ buffer when parsing non-escaped text.
+
+ * tests/input.at (Torturing the Scanner): Add tests that @oline@,
+ __oline__, #output, $@, and @{ do not have unintended meanings.
+
+2002-11-09 Paul Eggert <eggert@twinsun.com>
+
+ Fix the test failure due to GCC warnings described in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
+ * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
+ evaluate to 0 if it's impossible for NINF to be in the respective
+ table.
+ (yygetLRActions, yyrecoverParseError): Use them.
+
+ * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
+ counted in the token inserted at end of file. Now takes
+ location_t *, not location_t, so that the location can be
+ adjusted. All uses changed.
+
+ * tests/regression.at (Invalid inputs): Adjust wording in
+ diagnostic to match the new behavior.
+
+ * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
+ AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
+ AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
+ abort ();'. This reduces the runtime of the "Many lookaheads"
+ test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
+ GCC 3.2.
+
+2002-11-07 Paul Eggert <eggert@twinsun.com>
+
+ * src/parse-gram.y (CHARACTER): Remove unused token.
+ All uses removed.
+
+ * src/scan-gram.l: Remove stack option. We no longer use the
+ stack, since the stack was never deeper than 1; instead, use the
+ new auto var c_context to record the stacked value.
+
+ Remove nounput option. At an unexpected end of file, we now unput
+ the minimal input necessary to end cleanly; this simplifies the
+ code.
+
+ Avoid unbounded token sizes where this is easy.
+
+ (unexpected_end_of_file): New function.
+ Use it to systematize the error message on unexpected EOF.
+ (last-string): Now auto, not static.
+ (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
+ (scanner_last_string_free): Remove; not used.
+ (percent_percent_count): Move decl to just before use.
+ (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
+ not the (never otherwised-used) CHARACTER.
+
+2002-11-07 Akim Demaille <akim@epita.fr>
+
+ Let yyerror always receive the msg as last argument, so that
+ yyerror can be variadic.
+
+ * data/yacc.c (b4_yyerror_args): New.
+ Use it when calling yyerror.
+ * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
+ Use it when calling yyerror.
+ * doc/bison.texinfo (Error Reporting): Adjust.
+ * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ #line should have quoted strings.
+ Ideally, this should be done by m4_quotearg.
+
+ * src/scan-skel.l: Include quotearg.h.
+ Quote __ofile__.
+ * src/output.c (symbol_printers_output)
+ (symbol_destructors_output): Quote the file name.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Invalid inputs): Adjust to the recent
+ messages.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ Restore --no-lines.
+ Reported by Jim Kent.
+
+ * data/c.m4 (b4_syncline): New.
+ * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
+ * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
+ * src/output.c (user_actions_output): Likewise.
+ (prepare): Define 'b4_synclines_flag'.
+ * src/muscle_tab.c (muscle_init): Don't define b4_linef.
+
+2002-11-06 Akim Demaille <akim@epita.fr>
+
+ * src/main.c (main): Free `infile'.
+ * src/scan-gram.l (handle_syncline): New.
+ Recognize `#line'.
+ * src/output.c (user_actions_output, symbol_destructors_output)
+ (symbol_printers_output): Use the location's file name, not
+ infile.
+ * src/reader.c (prologue_augment, epilogue_set): Likewise.
+
+2002-11-05 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * src/tables.c (matching_state): Don't allow states to match if
+ either has GLR conflict entries.
+
+2002-11-05 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l: Use more accurate diagnostics, e.g.
+ "integer out of range" rather than "invalid value".
+ * tests/input.at (Invalid $n, Invalid @n): Change expected wording
+ accordingly.
+
+ Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
+ Also, remove one static variable in the scanner.
+
+ * src/scan-gram.l (braces_level): Now auto, not static.
+ Initialize to zero if the compiler is being picky.
+ (INITIAL): Clear braces_level instead of incrementing it.
+ (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
+ as POSIX 1003.1-2001 requires.
+ * src/system.h (IF_LINT): New macro, taken from coreutils.
+ * configure.ac: Define "lint" if --enable-gcc-warnings.
+
+2002-11-05 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l: When it starts with `%', complain about the
+ whole directive, not just that `invalid character: %'.
+
+2002-11-04 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Update from Autoconf.
+ (update, cvs-update, po-update, do-po-update): New.
+
+2002-11-04 Akim Demaille <akim@epita.fr>
+
+ * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
+ and yyerror.
+ Have yyerror `use' its arguments.
+ * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
+ returns true when location & yacc & pure & parse-param.
+ (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
+
+2002-11-04 Akim Demaille <akim@epita.fr>
+
+ * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
+ clashes.
+ * src/scan-gram.l: Use [\'] instead of ['] to pacify
+ font-lock-mode.
+ Use complain_at.
+ Use quote, not quote_n since LOCATION_PRINT no longer uses the
+ slot 0.
+
+2002-11-03 Paul Eggert <eggert@twinsun.com>
+
+ * src/reader.c (get_merge_function, grammar_current_rule_check):
+ Use consistent diagnostics for reporting type name clashes.
+ Quote the types with <>, for consistency with Yacc.
+ * tests/input.at (Type Clashes): Adjust to diagnostic changes.
+
+2002-11-03 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
+ New.
+ * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
+ (b4_parse_param): Remove.
+ Use b4_identification.
+ Propagate b4_pure_args where needed to pass them to yyerror.
+ * data/glr.m4 (b4_parse_param): Remove.
+ (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
+ (b4_lpure_formals): New.
+ Use b4_identification.
+ (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
+ b4_user_formals and b4_user_args.
+ (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
+ (yyreportAmbiguity): When using a pure parser, also need
+ the location, and the parse-params.
+ Adjust callers.
+ (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
+ When using a pure parser, also need the parse-params.
+ Adjust callers.
+ * tests/calc.at: Test pure (%pure-parser) and absolutely pure
+ (%pure-parser + %parse-param) LALR and GLR parsers.
+ (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
+ AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
+ AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
+ (_AT_DATA_CALC_Y): Equip for purity of yyerror.
+ (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
+ * doc/bison.texinfo: Untabify the whole file.
+ (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
+ (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
+ (Error Reporting): Adjust to these new directives.
+ Document %error-verbose, deprecate YYERROR_VERBOSE.
+
+2002-11-03 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
+ AT_CHECK_CALC_GLR invocations to use % directives, instead of
+ command line options.
+ * tests/cxx-type.at: Formatting changes.
+
+2002-11-03 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
+ to count columns correctly, and to check for invalid inputs.
+
+ Use mbsnwidth to count columns correctly. Account for tabs, too.
+ Include mbswidth.h.
+ (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
+ (extend_location): New function.
+ (YY_LINES): Remove.
+
+ Handle CRLF in C code rather than in Lex code.
+ (YY_INPUT): New macro.
+ (no_cr_read): New function.
+
+ Scan UCNs, even though we don't fully handle them yet.
+ (convert_ucn_to_byte): New function.
+
+ Handle backslash-newline correctly in C code.
+ (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
+ (eols, blanks): Remove. YY_USER_ACTION now counts newlines etc.;
+ all uses changed.
+ (tag, splice): New EREs. Do not allow NUL or newline in tags.
+ Use {splice} wherever C allows backslash-newline.
+ YY_STEP after space, newline, vertical-tab.
+ ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
+
+ (letter, id): Don't assume ASCII; e.g., spell out a-z.
+
+ ({int}, handle_action_dollar, handle_action_at): Check for integer
+ overflow.
+
+ (YY_STEP): Omit trailing semicolon, so that it's more like C.
+
+ (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
+ as well as \000. Check for UCHAR_MAX, not 255.
+ Allow \x with an arbitrary positive number of digits, as in C.
+ Check for overflow here.
+ Allow \? and UCNs, for compatibility with C.
+
+ (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
+ with quote slot used by complain_at.
+
+ * tests/input.at: Add tests for backslash-newline, m4 quotes
+ in symbols, long literals, and funny escapes in strings.
+
+ * configure.ac (jm_PREREQ_MBSWIDTH): Add.
+ * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
+ * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
+ * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
+ * m4/mbswidth.m4: New file, from GNU coreutils.
+
+ * doc/bison.texinfo (Grammar Outline): Document // comments.
+ (Symbols): Document that trigraphs have no special meaning in Bison,
+ nor is backslash-newline allowed.
+ (Actions): Document that trigraphs have no special meaning.
+
+ * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
+ no longer used.
+
+2002-11-02 Paul Eggert <eggert@twinsun.com>
+
+ * src/reader.c: Don't include quote.h; not needed.
+ (get_merge_function): Reword warning to be consistent with
+ type clash diagnostic in grammar_current_rule_check.
+
+ * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
+ bug in trigraph handling.
+
+ * src/output.c (prepare_symbols): When printing token names,
+ escape "[" as "@<:@" and likewise for "]".
+
+ * src/system.h (errno): Remove declaration, as we are now
+ assuming C89 or better, and C89 guarantees errno.
+
+2002-10-30 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
+ Check for close failures.
+ * src/files.h (xfclose): Return void, not int, since it always
+ returned zero.
+ * src/files.c (xfclose): Likewise. Report I/O error if ferror
+ indicates one.
+ * src/output.c (output_skeleton): Use xfclose rather than fclose
+ and ferror. xfclose now checks ferror.
+
+ * data/glr.c (YYLEFTMOST_STATE): Remove.
+ (yyreportTree): Use a stack-based leftmost state. This avoids
+ our continuing battles with bogus warnings about initializers.
+
+2002-10-30 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
+ #if.
+
+2002-10-29 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * tests/glr-regr1.at: New test for reported regressions.
+ * tests/testsuite.at: Add glr-regr1.at test.
+ * tests/Makefile.am: Add glr-regr1.at test.
+
+2002-10-24 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.75a.
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
+ * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
+ we use malloc. Don't assume 'A' through 'Z' are contiguous.
+ Don't assume strdup exists; POSIX says its an XSI extension.
+ Check for buffer overflow on input.
+
+2002-10-24 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_skeleton): Don't disable M4sugar comments
+ too soon: it results in comments being expanded.
+ * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
+ first output.
+
+2002-10-24 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (m4_int_type): New.
+ * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
+ char' as only yacc.c wants K&R portability.
+ * data/glr.c (yysigned_char): Remove.
+ * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
+ Reported by Quoc Peyrot.
+
+2002-10-23 Paul Eggert <eggert@twinsun.com>
+
+ * src/main.c (main): With --trace=time, report times even if a
+ non-fatal error occurs. Formerly, the times were reported in some
+ such cases but not in others.
+ * src/reader.c (reader): Just return if a complaint has been issued,
+ instead of exiting, so that 'main' can report times.
+
+2002-10-22 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Include sys/types.
+ Reported by Bert Deknuydt.
+
+2002-10-23 Paul Eggert <eggert@twinsun.com>
+
+ * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
+ Suggested by Art Haas.
+
+2002-10-22 Paul Eggert <eggert@twinsun.com>
+
+ * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
+ decl; not needed any more.
+ * src/main.c (main): Use return to exit, undoing yesterday's change.
+ The last OS that we could find where this wouldn't work is
+ SunOS 3.5, and that's too old to worry about now.
+
+ * data/glr.c (struct yyltype): Define members even when not
+ doing locations. This is more consistent with yacc.c, and it
+ works around the following bug reports:
+ http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
+ http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
+
+ * doc/bison.texinfo: Minor spelling and typographical fixes. Use
+ @acronym consistently. Standardize on "Yacc" instead of "YACC",
+ "Algol" instead of "ALGOL". Give a bit more history about BNF.
+
+2002-10-22 Akim Demaille <akim@epita.fr>
+
+ * data/README: New.
+
+2002-10-21 Paul Eggert <eggert@twinsun.com>
+
+ Be consistent about 'bool'; the old code used an enum in one
+ module and an int in another, and this violates the C standard.
+ * m4/stdbool.m4: New file, from coreutils 4.5.3.
+ * configure.ac (AC_HEADER_STDBOOL): Add.
+ * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
+ * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
+ * src/symtab.c (hash_compare_symbol_t): Likewise.
+ * src/system.h (bool, false, true): Use a definition consistent
+ with ../lib/hash.c. All uses changed.
+
+ * src/complain.c (warning_issued): Renamed from warn_message_count,
+ so that we needn't worry about integer overflow (!).
+ Now of type bool. All uses changed.
+ (complaint_issued): Renamed from complain_message_count; likewise.
+
+ * src/main.c (main): Use exit to exit with failure.
+
+ * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
+ rather than 1 and 0.
+ * src/main.c (main): Likewise.
+ * src/getargs.c (getargs): Likewise.
+ * src/reader.c (reader): Likewise.
+
+ * src/getarg.c (getargs): Remove duplicate code for
+ "Try `bison --help'".
+
+ * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
+ What was that "2" for?
+
+ * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
+ * src/getargs.c (usage): Likewise.
+
+ * src/getargs.c (getargs): When there are too few operands, report
+ the last one. When there are too many, report the first extra
+ one. This is how diffutils does it.
+
+2002-10-20 Paul Eggert <eggert@twinsun.com>
+
+ Remove K&R vestiges.
+ * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
+ * src/complain.c (VA_START): Remove. Assume prototypes.
+ (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
+ (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
+ fatal): Assume prototypes.
+ * src/complain.h: Assume prototypes.
+ * src/system.h (PARAMS): Remove.
+ Include <limits.h> unconditionally, since it's guaranteeed even
+ for a freestanding C89 compiler.
+ (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
+ * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
+ * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
+ (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
+ (yyresolveStates, yyresolveAction, yyresolveStack)
+ (yyprocessOneStack): Use them.
+ (yy_reduce_print): New.
+ * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_c_ansi_args): Recognize functions with no
+ arguments and output `void'.
+ (b4_c_function): Rename as...
+ (b4_c_function_def): this.
+ (b4_c_function_decl, b4_c_ansi_function_def)
+ (b4_c_ansi_function_decl): New.
+ Change the interpretation of the arguments: before `int, foo', now
+ `int foo, foo'.
+ * data/yacc.c (yyparse): Prototype and define thanks to these.
+ Adjust b4_c_function_def uses.
+ * data/glr.c (yyparse): Likewise, but ANSI only.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare): Move the definition of `tokens_number',
+ `nterms_number', `undef_token_number', `user_token_number_max'
+ to...
+ (prepare_tokens): Here.
+ (prepare_tokens): Rename as...
+ (prepare_symbols): this.
+ (prepare): Move the definition of `rules_number' to...
+ (prepare_rules): here.
+ (prepare): Move the definition of `last', `final_state_number',
+ `states_number' to...
+ (prepare_states): here.
+ * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/tables.h, src/tables.c, src/output.c: Comment changes.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
+ * data/c.m4: here.
+
+2002-10-20 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
+ * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
+ `pair'.
+ (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
+ `name' to...
+ * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
+ (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
+ These.
+
+2002-10-19 Paul Eggert <eggert@twinsun.com>
+
+ Do not create a temporary file, as that involves security and
+ cleanup headaches. Instead, use a pair of pipes.
+ Derived from a suggestion by Florian Krohm.
+ * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
+ * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
+ * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
+ (BISON_PREREQ_SUBPIPE): Add.
+ * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
+ Add subpipe.h, subpipe.c.
+ * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4. Add subpipe.m4.
+ * po/POTFILES.in: Add lib/subpipe.c.
+ * src/output.c: Include "subpipe.h".
+ (m4_invoke): Remove decl.
+ (scan_skel): New decl.
+ (output_skeleton): Use pipe rather than temporary file for m4 input.
+ Check that m4sugar.m4 is readable, to avoid deadlock.
+ Check for pipe I/O error.
+ * src/scan-skel.l (readpipe): Remove decl.
+ (scan_skel): New function, to be used in place of m4_invoke.
+ Read from stream rather than file.
+
+ * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
+ float, as this generates a warning on Solaris 8 + GCC 3.2 with
+ --enable-gcc-warnings. Instead, divide into 1.0 rather than 1;
+ this generates a more-accurate value anyway.
+
+ * lib/timevar.c (timervar_accumulate): Rename locals to
+ avoid confusion with similarly-named more-global.
+ * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
+
+ * src/output.c (prepare): Use xstrdup to convert char const *
+ to char *, to avoid GCC warning.
+
+2002-10-19 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
+ LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
+ Use them to have `calc.y' ready for %pure-parser.
+ * data/yacc.c (YYLEX): Pass a yylex return type to
+ b4_c_function_call.
+
+2002-10-19 Akim Demaille <akim@epita.fr>
+
+ Prototype support of %lex-param and %parse-param.
+
+ * src/parse-gram.y: Add the definition of the %lex-param and
+ %parse-param tokens, plus their rules.
+ Drop the `_' version of %glr-parser.
+ Add the "," token.
+ * src/scan-gram.l (INITIAL): Scan them.
+ * src/muscle_tab.c: Comment changes.
+ (muscle_insert, muscle_find): Rename `pair' as `probe'.
+ * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
+ (muscle_entry_s): The `value' member is no longer const.
+ Adjust all dependencies.
+ * src/muscle_tab.c (muscle_init): Adjust: use
+ MUSCLE_INSERT_STRING.
+ Initialize the obstack earlier.
+ * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
+ (muscle_pair_list_grow): New.
+ * data/c.m4 (b4_c_function_call, b4_c_args): New.
+ * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
+ * tests/calc.at: Use %locations, not --locations.
+ (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
+
+2002-10-19 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (usage): Take status as argument and exit
+ accordingly.
+ Report the traditional `Try ... --help' message when status != 0.
+ (usage, version): Don't take a FILE * as arg, it is pointless.
+ (getargs): When there is an incorrect number of arguments, make it
+ an error, and report it GNUlically thanks to `usage ()'.
+
+2002-10-18 Paul Eggert <eggert@twinsun.com>
+
+ * data/glr.c (yyreportParseError): Don't assume that sprintf
+ yields the length of the printed string, as this is not true
+ on SunOS 4.1.4. Reported by Peter Klein.
+
+ * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
+ * tests/conflicts.at (%nonassoc and eof): Likewise.
+ Fixes SunOS 4.1.4 test failure reported by Peter Klein.
+
+2002-10-17 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
+ * src/getargs.c (trace_types, trace_args): Adjust.
+ * src/reader.c (grammar_current_rule_prec_set)
+ (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
+ Standardize error messages.
+ And s/@prec/%prec/!
+ (reader): Use trace_flag to enable scanner/parser debugging,
+ instead of an adhoc scheme.
+ * src/scan-gram.l: Remove trailing debugging code.
+
+2002-10-16 Paul Eggert <eggert@twinsun.com>
+
+ * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
+ MUSCLE_TAB_H.
+
+ * NEWS: Officially drop support for building Bison with K&R C,
+ since it didn't work anyway and it's not worth worrying about.
+ * Makefile.maint (wget_files): Remove ansi2knr.c.
+ (ansi2knr.c-url_prefix): Remove.
+ * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
+ * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+ * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-10-15 Paul Eggert <eggert@twinsun.com>
+
+ Stop using the "enum_" trick for K&R-style function definitions;
+ it confused me, and I was the author! Instead, assume that people
+ who want to use K&R C compilers (when using these modules in GCC,
+ perhaps?) will run ansi2knr.
+
+ * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
+ All uses of "enum_" changed to "enum ".
+ * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+ * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+ * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
+ abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
+ abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
+ abitset_copy1, abitset_disjoint_p, abitset_empty_p,
+ abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
+ abitset_not, abitset_ones, abitset_or, abitset_or_and,
+ abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
+ abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
+ abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
+ Use function prototypes; this removes the need for declaring
+ static functions simply to provide their prototypes.
+ * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
+ bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
+ bitset_count_, bitset_create, bitset_dump, bitset_first,
+ bitset_free, bitset_init, bitset_last, bitset_next,
+ bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
+ bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
+ bitset_print, bitset_release_memory, bitset_toggle_,
+ bitset_type_choose, bitset_type_get, bitset_type_name_get,
+ debug_bitset): Likewise.
+ * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
+ * lib/bitset_stats.c (bitset_log_histogram_print,
+ bitset_percent_histogram_print, bitset_stats_and,
+ bitset_stats_and_cmp, bitset_stats_and_or,
+ bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
+ bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
+ bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
+ bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
+ bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
+ bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
+ bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
+ bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
+ bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
+ bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
+ bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
+ bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
+ bitset_stats_zero): Likewise.
+ * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+ bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+ bitsetv_dump, debug_bitsetv): Likewise.
+ * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
+ ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
+ ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
+ ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
+ ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
+ ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
+ ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
+ ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
+ ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
+ ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
+ ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
+ Likewise.
+ * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
+ lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
+ lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
+ lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
+ lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
+ lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
+ lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
+ lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
+ lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
+ lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
+ lbitset_xor_cmp, lbitset_zero): Likewise.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ Version 1.75.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ * tests/Makefile.am (maintainer-check-posix): New.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
+ member.
+
+2002-10-14 Akim Demaille <akim@epita.fr>
+
+ * src/tables.c (table_ninf_remap): base -> tab.
+ Reported by Matt Rosing.
+
+2002-10-14 Paul Eggert <eggert@twinsun.com>
+
+ * tests/action.at, tests/calc.at, tests/conflicts.at,
+ tests/cxx-type.at, tests/headers.at, tests/input.at,
+ tests/regression.at, tests/synclines.at, tests/torture.at:
+ Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
+ so that the tests still work even if POSIXLY_CORRECT is set.
+ * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
+
+ * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
+ for portability to K&R hosts. Fix typo: signed char is guaranteed
+ only to 127, not to 128.
+ * data/glr.c (yysigned_char): New type.
+ * data/yacc.c (yysigned_char): Likewise.
+ * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
+
+2002-10-13 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
+ true due to limited range of data type" warning from GCC.
+
+ * data/c.m4 (b4_token_defines): Protect against double-inclusion
+ by wrapping enum yytokentype's definition inside #ifndef
+ YYTOKENTYPE. This undoes a bug I introduced on 2002-10-12.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
+ Un yy- yyrhs to avoid the name clash with the global YYRHS.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Update from Autoconf 2.54.
+ * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (print_state): Separate the list of solved conflicts
+ from the other items.
+ * tests/conflicts.at (Resolved SR Conflicts): Adjust.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ Let nondeterministic skeletons be usable with deterministic
+ tables.
+
+ With the patch, GAWK compiled by GCC without -O2 passes its test
+ suite using a GLR parser driven by LALR tables. It fails with -O2
+ because `struct stat' gives two different answers on my machine:
+ 88 (definition of an auto var) and later 96 (memset on this var).
+ Hence the stack is badly corrumpted. The headers inclusion is to
+ blame: if I move the awk.h inclusion before GLR's system header
+ inclusion, the two struct stat have the same size.
+
+ * src/tables.c (pack_table): Always create conflict_table.
+ (token_actions): Always create conflict_list.
+ * data/glr.c (YYFLAG): Remove, unused.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
+ (O0FLAGS): New.
+ (VALGRIND, GXX): New.
+ * tests/atlocal.in (CFLAGS): Use O0FLAGS.
+ * tests/bison.in: Run $PREBISON a pre-command.
+ * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
+ (maintainer-check-g++): New.
+ * Makefile.am (maintainer-check): New.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ * data/glr.c: Formatting changes.
+ Tweak some trace messages to match yacc.c's.
+
+2002-10-13 Akim Demaille <akim@epita.fr>
+
+ GLR parsers sometimes raise parse errors instead of performing the
+ default reduction.
+ Reported by Charles-Henry de Boysson.
+
+ * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
+ check the length of the traces when %glr.
+ (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
+ GLR's traces.
+ (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
+ Test GLR parsers.
+ * data/glr.c (YYLEFTMOST_STATE): Fix its value.
+ (yyltype): Remove the yy prefix from the member names.
+ (yytable): Complete its comment.
+ (yygetLRActions): Map error action number from YYTABLE from
+ YYTABLE_NINF to 0.
+ (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
+ (which was a bug: it should have been YYTABEL_NINF, and yet it was
+ not satisfying as we could compare an YYACTION computed from
+ YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
+ only value for error actions.
+ (yyreportParseError): In verbose parse error messages, don't issue
+ `error' in the list of expected tokens.
+ * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
+ next action to perform to match glr.c's decoding.
+ (yytable): Complete its comment.
+
+2002-10-13 Paul Eggert <eggert@twinsun.com>
+
+ Fix problem reported by Henrik Grubbstroem in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
+ "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
+ because the Bison parser reads the second action before reducing
+ the first one.
+ * src/scan-gram.l (rule_length): New static var.
+ Use it to keep track of the rule length in the scanner, since
+ we can't expect the parser to be in lock-step sync with the scanner.
+ (handle_action_dollar, handle_action_at): Use this var.
+ * tests/actions.at (Exotic Dollars): Test for the problem.
+
+2002-10-12 Paul Eggert <eggert@twinsun.com>
+
+ * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
+ * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
+ Include <sys/time.h> when checking for clock_t and struct tms.
+ Use same include order as source.
+ This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
+
+ * lib/timevar.c: Update copyright date and clarify comments.
+ (get_time) [IN_GCC]: Keep the GCC version for reference.
+
+ * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
+ GCC version as of today, then merge Bison's changes.
+ Change "GCC" to "Bison" in copyright notice. timevar.def's
+ author is Akim, so change that too.
+
+ * src/reader.c (grammar_current_rule_check):
+ Don't worry about the default action if $$ is untyped.
+ Prevents bogus warnings reported by Jim Gifford in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
+
+ * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
+ * data/glr.c, data/lalr1.cc, data/yacc.c:
+ Output token definitions before the first part of user declarations.
+ Fixes compatibility problem reported by Jim Gifford for kbd in
+ <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
+
+2002-10-11 Paul Eggert <eggert@twinsun.com>
+
+ * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
+ (yyparse): here. This undoes some of the 2002-07-25 change.
+ Compatibility problem reported by Ralf S. Engelschall with
+ OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
+
+2002-10-11 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at Characters Escapes): New.
+ * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
+ characters.
+ Reported by Jan Nieuwenhuizen.
+
+2002-10-11 Akim Demaille <akim@epita.fr>
+
+ * po/id.po: New.
+
+2002-10-10 Paul Eggert <eggert@twinsun.com>
+
+ Portability fixes for bitsets; this also avoids several GCC
+ warnings.
+
+ * lib/abitset.c: Include <stddef.h>, for offsetof.
+ * lib/lbitset.c: Likewise.
+
+ * lib/abitset.c (abitset_bytes): Return a size that is aligned
+ properly for vectors of objects. Do not assume that adding a
+ header size to a multiple of a word size yields a value that is
+ properly aligned for the whole union.
+ * lib/bitsetv.c (bitsetv_alloc): Likewise.
+
+ * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
+ unique names for structures.
+ * lib/ebitset.c (ebitset_bytes): Likewise.
+ * lib/lbitset.c (lbitset_bytes): Likewise.
+
+ * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
+ abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
+ abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
+ abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
+ abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
+ abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
+ abitset_or_and_cmp, abitset_copy): Supply prototype decls,
+ to improve the type-checking that GCC can do.
+ * lib/bitset.c (bitset_op4_cmp): Likewise.
+ * lib/bitset_stats.c (bitset_stats_count,
+ bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
+ bitset_stats_copy, bitset_stats_disjoint_p,
+ bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
+ bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
+ bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
+ bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
+ bitset_stats_and_or_cmp, bitset_stats_andn_or,
+ bitset_stats_andn_or_cmp, bitset_stats_or_and,
+ bitset_stats_or_and_cmp): Likewise.
+ * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
+ lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
+ lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
+ lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
+
+ * lib/abitset.h: Include bitset.h, not bbitset.h.
+ * lib/ebitset.h: Likewise.
+ * lib/lbitset.h: Likewise.
+
+ * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
+ All instances of parameters of type enum bitset_opts are now of
+ type enum_bitset_opts, to conform to the C Standard, and similarly
+ for enum_bitset_type.
+ * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+ * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+ Do not use "struct bitset_struct" to mean different things in
+ different modules. Not only is this confusing, it violates
+ the C Standard, which requires that structure types in different
+ modules must be compatible if one is to be passed to the other.
+ * lib/bbitset.h (bitset): Now points to a union, not to a struct.
+ All instances of "struct bitset_struct *" replaced with "bitset".
+ * lib/bitset.h (struct bitset_struct): Remove, replacing with....
+ (union bitset_union, struct abitset_struct, struct ebitset_struct,
+ struct lbitset_struct, struct bitset_stats_struct): New types.
+ All uses of struct bitset_struct changed to union bitset_union,
+ etc.
+ * lib/abitset.c (struct abitset_struct, abitset,
+ struct bitset_struct): Remove.
+ * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
+ struct bitset_struct): Remove.
+ * lib/ebitset.c (struct ebitset_struct, ebitset, struct
+ bitset_struct): Remove.
+ * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
+ Likewise.
+
+ Do not call a function of type T using a call that assumes the
+ function is of a different type U. Standard C requires that a
+ function must be called with a type that is compatible with its
+ definition.
+ * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+ New decls.
+ * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+ New functions.
+ * lib/ebitset.c (PFV): Remove.
+ * lib/lbitset.c (PFV): Likewise.
+ * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
+ ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
+ decls.
+ (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
+ (ebitset_vtable): Use them.
+ * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
+ lbitset_xor): New functions.
+ (lbitset_vtable): Use them.
+
+ * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
+ Declare.
+
+ * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
+ GCC warning.
+ * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
+ Use offsetof, for simplicity.
+
+2002-10-06 Paul Eggert <eggert@twinsun.com>
+
+ * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
+ the same width as int. This reapplies a hunk of the 2002-08-12 patch
+ <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
+ which was inadvertently undone by the 2002-09-30 patch.
+ * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
+ the same width as int.
+
+2002-10-04 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.50.
+
+ * configure.ac (AC_INIT), NEWS: Increment version number.
+
+ * doc/bison.texinfo: Minor spelling, grammar, and white space
+ fixes.
+ (Symbols): Mention that any negative value returned from yylex
+ signifies end-of-input. Warn about negative chars. Mention
+ the portable Standard C character set.
+
+ The GNU coding standard says CFLAGS and YFLAGS are reserved
+ for the installer to set.
+ * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
+ * src/Makefile.am (AM_CFLAGS): Likewise.
+ (AM_YFLAGS): Renamed from YFLAGS.
+
+ Fix some MAX and MIN problems.
+ * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
+ * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
+ * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
+ * src/reader.c (reader): Use it.
+
+ * tests/regression.at (Braces parsing): Use grep, not fgrep, as
+ POSIX 1003.1-2001 has removed fgrep.
+
+2002-10-04 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
+
+ * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
+ interpreted as signed.
+ * lib/ebitset.c (ebitset_list): Fix bug.
+
+2002-10-01 Paul Eggert <eggert@twinsun.com>
+
+ More fixes for 64-bit hosts and large bitsets.
+
+ * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
+ abitset_size, abitset_list, abitset_list_reverse, abitset_list):
+ Use bitset_bindex, not int or unsigned int or size_t, to count bits.
+ * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
+ struct bitset_vtable.list, struct bitset_vtable.list_reverse,
+ bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
+ bitset_count_): Likewise.
+ * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
+ bitset_first, bitset_last): Likewise.
+ * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
+ bitset_stats_list_reverse, bitset_stats_size,
+ bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
+ Likewise.
+ * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+ * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+ bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+ bitsetv_reflexive_transitive_closure): Likewise.
+ * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
+ * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
+ Likewise.
+ * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
+ Likewise.
+
+ * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
+ Use size_t, not unsigned int, to count bytes.
+ * lib/abitset.h (abitset_bytes): Likewise.
+ * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
+ Likewise.
+ * lib/bitset.h (bitset_bytes): Likewise.
+ * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
+ * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
+ * lib/bitsetv.c (bitsetv_alloc): Likewise.
+ * lib/ebitset.c (ebitset_bytes): Likewise.
+ * lib/ebitset.h (ebitset_bytes): Likewise.
+ * lib/lbitset.c (lbitset_bytes): Likewise.
+ * lib/lbitset.h (lbitset_bytes): Likewise.
+
+ * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
+ abitset_subset_p, abitset_disjoint_p, abitset_and,
+ abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
+ abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
+ abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
+ abitset_or_and, abitset_or_and_cmp):
+ Use bitset_windex instead of unsigned int.
+ * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+ * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
+ ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
+ ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
+ Likewise.
+ * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
+
+ * lib/bitset.c (bitset_print):
+ Use proper printf formats for widths of integer types.
+ * lib/bitset_stats.c (bitset_percent_histogram_print,
+ bitset_log_histogram_print, bitset_stats_print_1): Likewise.
+ * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+ * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+ * lib/lbitset.c (lbitset_bytes): Likewise.
+
+ * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
+ BITSET_SIZE_MAX): New macros.
+ (BITSET_INDEX_MAX): Remove. It wasn't right, since it assumed that
+ sizeof (bitset_word) == sizeof (bitset_windex). All uses changed
+ to BITSET_WINDEX_MAX.
+
+ * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
+ bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
+ since we now return the bitset_bindex type (not int).
+
+ * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
+ when computing sizes.
+ * lib/ebitset.c (ebitset_elts_grow): Likewise.
+
+ * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
+ and avoid cast to unsigned.
+
+2002-09-30 Akim Demaille <akim@epita.fr>
+
+ * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
+ * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
+ Updates from Michael Hayes.
+
+2002-09-30 Art Haas <ahaas@neosoft.com>
+
+ * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
+ invocations.
+ * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
+ defined.
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ Version 1.49c.
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
+ (Because of AC_LIBSOURCE).
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ Playing with Autoscan.
+
+ * configure.ac: Remove the old LIBOBJ tweaks.
+ (AC_REPLACE_FUNCS): Add strrchr and strtol.
+ * lib/strrchr.c: New.
+ * lib/strtol.c: New, from the Coreutils 4.5.1.
+
+2002-09-27 Akim Demaille <akim@epita.fr>
+
+ Playing with Autoscan.
+
+ * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
+ * lib/Makefile.am (libbison_a_SOURCES): No longer include
+ argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
+ * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
+ Coreutils 4.5.1.
+
+2002-09-24 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Stack Overflow): xref to Recursion.
+ (Frequently Asked Questions, Parser Stack Overflow): New.
+
+2002-09-13 Akim Demaille <akim@epita.fr>
+
+ Playing with autoscan.
+
+ * src/reader.c (get_merge_function): Use xstrdup, not strdup.
+ * src/files.c (skeleton_find): Remove, unused.
+ * m4/memcmp.m4: New, from the Coreutils 4.5.1.
+ * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
+
+2002-09-13 Akim Demaille <akim@epita.fr>
+
+ * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
+ * Makefile.am (AUTOMAKE_OPTIONS): Don't.
+
+2002-09-13 Akim Demaille <akim@epita.fr>
+
+ * configure.ac: Require 2.54.
+ s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
+ s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
+ * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
+ Remove, provided by Autoconf macros.
+
+2002-09-12 Akim Demaille <akim@epita.fr>
+
+ * m4/prereq.m4: Update, from Coreutils 4.5.1.
+
+2002-09-12 Akim Demaille <akim@epita.fr>
+
+ * m4/prereq.m4: Update, from Fileutils 4.1.5.
+ * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
+ Reported by Martin Mokrejs.
+
+2002-09-10 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y: Associate a human readable string to each
+ token type.
+ * tests/regression.at (Invalid inputs): Adjust.
+
+2002-09-10 Gary V. Vaughan <gary@gnu.org>
+
+ * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
+ with an Autoconf-2.5x style configure.ac.
+
+2002-09-06 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (Conditions): Make explicit that the GPL
+ exception applies only to yacc.c. This is a modification of a
+ patch originally suggested by Akim Demaille.
+
+2002-09-06 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_copyright): Move the GPL exception comment from
+ here to...
+ * data/yacc.c: here.
+
+ * data/lalr1.cc (struct yyltype): Don't define it, since we use
+ LocationType.
+ (b4_ltype): Default to yy::Location from location.hh.
+
+2002-09-04 Jim Meyering <jim@meyering.net>
+
+ * data/yacc.c: Guard the declaration of yytoknum also with
+ `#ifdef YYPRINT', so it is declared only when used.
+
+2002-09-04 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Rename as...
+ * configure.ac: this.
+ Bump to 1.49c.
+
+2002-09-04 Akim Demaille <akim@epita.fr>
+
+ * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
+ * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
+ translate maintainer only messages.
+
+2002-08-12 Paul Eggert <eggert@twinsun.com>
+
+ Version 1.49b.
+
+ * Makefile.am (SUBDIRS): Remove intl.
+ (DISTCLEANFILES): Remove.
+ * NEWS: Mention that GNU M4 is now required. Clarify what is
+ meant by "larger grammars". Mention the pt_BR translation.
+ * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
+ (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
+ Bump version from 0.11.2 to 0.11.5.
+ (BISON_PREREQ_STAGE): Remove.
+ (AM_GNU_GETTEXT): Use external gettext.
+ (AC_OUTPUT): Remove intl/Makefile.
+
+ * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
+
+ * data/glr.c: Include string.h, for strlen.
+ (yyreportParseError): Use size_t for yysize.
+ (yy_yypstack): No longer nested inside yypstates, as nested
+ functions are not portable. Do not assume size_t is the
+ same width as int.
+ (yypstates): Do not assume that ptrdiff_t is the same width
+ as int, and similarly for yyposn and YYINDEX.
+
+ * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
+
+ * lib/Makefile.am (INCLUDES): Do not include from the intl
+ directory, which has been removed.
+ * src/Makefile.am (INCLUDES): Likewise.
+
+ * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
+ (bitsets_sources, additional_bitsets_sources, timevars_sources):
+ New vars.
+
+ * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
+ * tests/Makefile.am (EXTRA_DIST): Likewise.
+
+ * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
+ Do not assume that bitset_windex is the same width as unsigned.
+
+ * lib/abitset.c (abitset_unused_clear): Do not assume that
+ bitset_word is the same width as int.
+ * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
+ * lib/bitset.h (bitset_set, bitset_reset): Likewise.
+ * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
+ * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
+ * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
+
+ * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
+ portability to one's complement hosts!).
+ * lib/ebitset.c (ebitset_op1): Likewise.
+ * lib/lbitset.c (lbitset_op1): Likewise.
+
+ * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
+ * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+ lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
+ Sync with fileutils.
+ * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
+ lib/gettext.h: Sync with diffutils.
+
+ * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
+ lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
+
+ * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
+ PROTOTYPES to check for prototypes, and "defined __STDC__" to
+ check for void *.
+
+ * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
+ size_t; the old version tried to do this but casted improperly.
+ (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
+ (bitset_test): Now returns int, not unsigned long.
+
+ * lib/bitset_stats.c: Include "gettext.h".
+ (_): New macro.
+ (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
+ name locals "index", as it generates unnecessary warnings on some
+ hosts that have an "index" function.
+
+ * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
+ bitset_stats_read, bitset_stats_write): Wrap strings in _() if
+ they need translation.
+ * src/LR0.c (state_list_append, new_itemsets, get_state,
+ append_states, generate_states): Likewise.
+ * src/assoc.c (assoc_to_string): Likewise.
+ * src/closure.c (print_closure, set_firsts, closure): Likewise.
+ * src/gram.c (grammar_dump): Likewise.
+ * src/injections.c (injections_compute): Likewise.
+ * src/lalr.c (lookaheads_print): Likewise.
+ * src/relation.c (relation_transpose): Likewise.
+ * src/scan-gram.l: Likewise.
+ * src/tables.c (table_grow, pack_vector): Likewise.
+
+ * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
+ glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
+ * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
+ * m4/mbstate_t.m4: Sync with fileutils.
+ * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
+
+ * po/LINGUAS: Add pt_BR.
+ * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
+ src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
+ lib/timevar.c.
+ Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
+ manual recommends.
+ Similarly, use src/scan-gram.l instead of src/scan-gram.c.
+
+ * src/complain.c (strerror_r): Remove decl; not needed.
+ (strerror): Use same pattern as ../lib/error.c.
+
+ * src/files.c, src/files.h (compute_header_macro): Remove; unused.
+
+ * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
+
+ * src/main.c (main): Cast result of bindtextdomain and textdomain
+ to void, to avoid a GCC warning when --disable-nls is in effect.
+
+ * src/scan-gram.l: Use strings rather than escapes when possible,
+ to minimize the number of warnings from xgettext.
+ (handle_action_dollar, handle_action_at): Don't use isdigit,
+ as it mishandles negative chars and it may not work as expected
+ outside the C locale.
+
+ * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
+ this is a GCC extension and is not portable to other compilers.
+
+ * src/system.h (alloca): Use same pattern as ../lib/error.c.
+ Do not include <ctype.h>; no longer needed.
+ Do not include <malloc.h>; no longer needed (and generates
+ warnings on OpenBSD 3.0).
+
+ * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
+ it's not portable.
+
+ * tests/regression.at: Do not use 'cc -c input.c -o input';
+ Sun C rejects this. Instead, use 'cc -c input.c -o input.o'.
+
+ * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
+ exit status as failure, not just exit status 1. Sun C exits
+ with status 2 sometimes.
+
+ * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
+ Use it for the two large tests.
+
+2002-08-02 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (conflicts_output): Don't output rules never
+ reduced here, since anyway that computation doesn't work.
+ * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
+ (rule_useless_p, rule_never_reduced_p): New.
+ (grammar_rules_partial_print): Use a filter instead of a range.
+ Display the title only if needed.
+ (grammar_rules_print): Adjust.
+ (grammar_rules_never_reduced_report): New.
+ * src/tables.c (action_row): Move the computation of rules never
+ reduced to...
+ (token_actions): here.
+ * src/main.c (main): Make the parser before making the report, so
+ that rules never reduced are computed.
+ Call grammar_rules_never_reduced_report.
+ * src/print.c (print_results): Report rules never reduced.
+ * tests/conflicts.at, tests/reduce.at: Adjust.
+
+2002-08-01 Akim Demaille <akim@epita.fr>
+
+ Instead of attaching lookaheads and duplicating the rules being
+ reduced by a state, attach the lookaheads to the reductions.
+
+ * src/state.h (state_t): Remove the `lookaheads',
+ `lookaheads_rule' member.
+ (reductions_t): Add a `lookaheads' member.
+ Use a regular array for the `rules'.
+ * src/state.c (reductions_new): Initialize the lookaheads member
+ to 0.
+ (state_rule_lookaheads_print): Adjust.
+ * src/state.h, src/state.c (state_reductions_find): New.
+ * src/conflicts.c (resolve_sr_conflict, set_conflicts)
+ (count_rr_conflicts): Adjust.
+ * src/lalr.c (LArule): Remove.
+ (add_lookback_edge): Adjust.
+ (state_lookaheads_count): New.
+ (states_lookaheads_initialize): Merge into...
+ (initialize_LA): this.
+ (lalr_free): Adjust.
+ * src/main.c (main): Don't free nullable and derives too early: it
+ is used by --verbose.
+ * src/print.c, src/print_graph.c, src/tables.c: Adjust.
+
+2002-08-01 Akim Demaille <akim@epita.fr>
+
+ * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
+ `rule_number_t**'.
+ (set_derives, free_derives): Rename as...
+ (derives_compute, derives_free): this.
+ Adjust all dependencies.
+ * src/nullable.c (set_nullable, free_nullable): Rename as...
+ (nullable_compute, nullable_free): these.
+ (rule_list_t): Store rule_t *, not rule_number_t.
+ * src/state.c (state_rule_lookaheads_print): Directly compare rule
+ pointers, instead of their numbers.
+ * src/main.c (main): Call nullable_free, and derives_free earlier,
+ as they were lo longer used.
+
+2002-08-01 Akim Demaille <akim@epita.fr>
+
+ * lib/timevar.c (get_time): Include children time.
+ * src/lalr.h (LA, LArule): Don't export them: used with the
+ state_t.
+ * src/lalr.c (LA, LArule): Static.
+ * src/lalr.h, src/lalr.c (lalr_free): New.
+ * src/main.c (main): Call it.
+ * src/tables.c (pack_vector): Check whether loc is >= to the
+ table_size, not >.
+ (pack_tables): Don't free froms, tos, conflict_tos, and pos...
+ (tables_generate): do it, since that's also it which allocates
+ them.
+ Don't free LA and LArule, main does.
+
+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Separate parser tables computation and output.
+
+ * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
+ (conflict_list, conflict_list_cnt, table, check, table_ninf)
+ (yydefgoto, yydefact, high): Move to...
+ * src/tables.h, src/tables.c: here.
+ * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+ (VECTOR_NUMBER_MIN, state_number_to_vector_number)
+ (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
+ (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
+ (ACTION_MIN, actrow, order, nentries, pos, conflrow)
+ (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
+ (action_row, save_row, token_actions, save_column, default_goto)
+ (goto_actions, sort_actions, matching_state, pack_vector)
+ (table_ninf_remap, pack_table, prepare_actions): Move to...
+ * src/tables.c: here.
+ * src/tables.h, src/tables.c(tables_generate, tables_free): New.
+ * src/output.c (token_actions, output_base, output_conflicts)
+ (output_check): Merge into...
+ (prepare_actions): this.
+ (actions_output): Rename as...
+ (user_actions_output): this.
+ * src/main.c (main): Call tables_generate and tables_free.
+
+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Steal GCC's --time-report support.
+
+ * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
+ stolen/adjusted from GCC.
+ * m4/stage.m4: Remove time related checks.
+ * m4/timevar.m4: New.
+ * configure.in: Adjust.
+ * src/system.h: Adjust to using timevar.h.
+ * src/getargs.h, src/getargs.c: Support trace_time for
+ --trace=time.
+ * src/main.c (stage): Remove.
+ (main): Replace `stage' invocations with timevar calls.
+ * src/output.c: Insert pertinent timevar calls.
+
+2002-07-31 Akim Demaille <akim@epita.fr>
+
+ Let --trace have arguments.
+
+ * src/getargs.h (enum trace_e): New.
+ * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
+ (long_options, short_options): --trace/-T takes an optional
+ argument.
+ Change all the uses of trace_flag to reflect the new flags.
+ * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
+
+ Strengthen `stage' portability.
+
+ * m4/stage.m4 (BISON_PREREQ_STAGE): New.
+ * configure.in: Use it.
+ Don't check for malloc.h and sys/times.h.
+ * src/system.h: Include them when appropriate.
+ * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
+ times and struct tms are available.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ In verbose parse error message, don't report `error' as an
+ expected token.
+ * tests/actions.at (Printers and Destructors): Adjust.
+ * tests/calc.at (Calculator $1): Adjust.
+ * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
+ error message, do not report the parser accepts the error token in
+ that state.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ Normalize conflict related messages.
+
+ * src/complain.h, src/complain.c (warn, complain): New.
+ * src/conflicts.c (conflicts_print): Use them.
+ (conflict_report_yacc): New, extracted from...
+ (conflicts_print): here.
+ * tests/conflicts.at, tests/existing.at: Adjust.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ Report rules which are never reduced by the parser: those hidden
+ by conflicts.
+
+ * src/LR0.c (save_reductions): Don't make the final state too
+ different: save its reduction (accept) instead of having a state
+ without any action (no shift or goto, no reduce).
+ Note: the final state is now a ``regular'' state, i.e., the
+ parsers now contain `reduce 0' as default reduction.
+ Nevertheless, since they decide to `accept' when yystate =
+ final_state, they still will not reduce rule 0.
+ * src/print.c (print_actions, print_reduction): Adjust.
+ * src/output.c (action_row): Track reduced rules.
+ (token_actions): Report rules never reduced.
+ * tests/conflicts.at, tests/regression.at: Adjust.
+
+2002-07-30 Akim Demaille <akim@epita.fr>
+
+ `stage' was accidently included in a previous patch.
+ Initiate its autoconfiscation.
+
+ * configure.in: Look for malloc.h and sys/times.h.
+ * src/main.c (stage): Adjust.
+ Report only when trace_flag.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
+ state_number_t.
+ (errs_t): symbol_t*, not symbol_number_t.
+ (reductions_t): rule_t*, not rule_number_t.
+ (FOR_EACH_SHIFT): New.
+ * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
+ * src/print.c, src/print_graph.c: Adjust.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
+
+ * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
+ (endtoken, accept): these.
+ * src/reader.c (reader): Set endtoken's default tag to "$end".
+ Set undeftoken's tag to "$undefined" instead of "$undefined.".
+ * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
+ Adjust.
+
+2002-07-29 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (reduce_grammar): When the language is empty,
+ complain about the start symbol, not the axiom.
+ Use its location.
+ * tests/reduce.at (Empty Language): New.
+
+2002-07-26 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h, src/reader.c (gram_error): ... can't get
+ yycontrol without making too strong assumptions on the parser
+ itself.
+ * src/output.c (prepare_tokens): Use the real 0th value of
+ token_translations instead of `0'.
+ * src/parse-gram.y (yyerror): Don't rely on yycontrol being
+ visible here.
+ * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
+ for the time being: %locations ought to provide it to yyerror.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
+ * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ Stop storing rules from 1 to nrules + 1.
+
+ * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
+ * src/nullable.c, src/output.c, src/print.c, src/reader.c
+ * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
+ Iterate from 0 to nrules.
+ Use rule_number_as_item_number and item_number_as_rule_number.
+ Adjust to `derive' now containing possibly 0.
+ * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
+ Handle the `- 1' part in rule numbers from/to item numbers.
+ * src/conflicts.c (log_resolution): Fix the message which reversed
+ shift and reduce.
+ * src/output.c (action_row): Initialize default_rule to -1.
+ (token_actions): Adjust.
+ * tests/sets.at (Nullable, Firsts): Fix the previously bogus
+ expected output.
+ * tests/conflicts.at (Resolved SR Conflicts): Likewise.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
+ (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
+ (b4_c_knr_arg_decl): New.
+ * data/yacc.c: Use it to define yysymprint, yydestruct, and
+ yyreport_parse_error.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (yyreport_parse_error): New, extracted from...
+ (yyparse): here.
+ (yydestruct, yysymprint): Move above yyparse.
+ Be K&R compliant.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
+ replace...
+ (b4_sint_type, b4_uint_type): these.
+ * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (TIEM_NUMBER_MAX): New.
+ (item_number_of_rule_number, rule_number_of_item_number): Rename
+ as...
+ (rule_number_as_item_number, item_number_as_rule_number): these.
+ Adjust dependencies.
+ * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+ (VECTOR_NUMBER_MIN, state_number_to_vector_number)
+ (symbol_number_to_vector_number): New.
+ (order): Of vector_number_t* type.
+ (base_t, BASE_MAX, BASE_MIN): New.
+ (froms, tos, width, pos, check): Of base_t type.
+ (action_number_t, ACTION_MIN, ACTION_MAX): New.
+ (actrow): Of action_number_t type.
+ (conflrow): Of unsigned int type.
+ (table_ninf, base_ninf): New.
+ (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
+ (muscle_insert_int_table, muscle_insert_base_table)
+ (muscle_insert_rule_number_table): New.
+ (prepare_tokens): Output `toknum' as int_table.
+ (action_row): Returns a rule_number_t.
+ Use ACTION_MIN, not SHRT_MIN.
+ (token_actions): yydefact is rule_number_t*.
+ (table_ninf_remap): New.
+ (pack_table): Use it for `base' and `table'.
+ * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
+ replaced with...
+ (YYPACT_NINF, YYTABLE_NINF): these.
+ (yypact, yytable): Compute their types instead of hard-coded
+ `short'.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-19 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (id): Can start with an underscore.
+
+2002-07-16 Akim Demaille <akim@epita.fr>
+
+ * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
+ Adjust all former `associativity' dependencies.
+ * src/symtab.c (symbol_new): Default associativity is `undef', not
+ `right'.
+ (symbol_check_alias_consistence): Adjust.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Properly set the ``header'' part.
+ Use @dircategory ``GNU programming tools'' as per Texinfo's
+ documentation.
+ Use @copying.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * lib/quotearg.h: Protect against multiple inclusions.
+ * src/location.h (location_t): Add a `file' member.
+ (LOCATION_RESET, LOCATION_PRINT): Adjust.
+ * src/complain.c (warn_at, complain_at, fatal_at): Drop
+ `error_one_per_line' support.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * src/complain.h, src/complain.c (warn, complain): Remove, unused.
+ * src/reader.c (lineno): Remove.
+ Adjust all dependencies.
+ (get_merge_function): Take a location and use complain_at.
+ * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
+ * tests/regression.at (Invalid inputs, Mixing %token styles):
+ Adjust.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (rules_or_grammar_declaration): Add an error
+ recovery rule, and forbid extensions when --yacc.
+ (gram_error): Use complain_at.
+ * src/reader.c (reader): Exit if there were parse errors.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
+ (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
+ Reported by R Blake <blakers@mac.com>.
+
+2002-07-09 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c: Output the copyright notive in the header.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (froms, tos): Are state_number_t.
+ (save_column): sp, sp1, and sp2 are state_number_t.
+ (prepare): Rename `final' as `final_state_number', `nnts' as
+ `nterms_number', `nrules' as `rules_number', `nstates' as
+ `states_number', and `ntokens' as `tokens_number'. Remove `nsym',
+ unused.
+ * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
+ * data/lalr1.cc (nsym_): Remove, unused.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h, src/lalr.c (goto_number_t): New.
+ * src/lalr.c (goto_list_t): New.
+ Propagate them.
+ * src/nullable.c (rule_list_t): New.
+ Propagate.
+ * src/types.h: Remove.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (print_fderives): Use rule_rhs_print.
+ * src/derives.c (print_derives): Use rule_rhs_print.
+ (rule_list_t): New, replaces `shorts'.
+ (set_derives): Add comments.
+ * tests/sets.at (Nullable, Firsts): Adjust.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare_actions): Free `tally' and `width'.
+ (prepare_actions): Allocate and free `order'.
+ * src/symtab.c (symbols_free): Free `symbols'.
+ * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
+ * src/output.c (m4_invoke): Move to...
+ * src/scan-skel.l: here.
+ (<<EOF>>): Close yyout, and free its name.
+
+2002-07-03 Akim Demaille <akim@epita.fr>
+
+ Fix some memory leaks, and fix a bug: state 0 was examined twice.
+
+ * src/LR0.c (new_state): Merge into...
+ (state_list_append): this.
+ (new_states): Merge into...
+ (generate_states): here.
+ (set_states): Don't ensure a proper `errs' state member here, do it...
+ * src/conflicts.c (conflicts_solve): here.
+ * src/state.h, src/state.c: Comment changes.
+ (state_t): Rename member `shifts' as `transitions'.
+ Adjust all dependencies.
+ (errs_new): For consistency, also take the values as argument.
+ (errs_dup): Remove.
+ (state_errs_set): New.
+ (state_reductions_set, state_transitions_set): Assert that no
+ previous value was assigned.
+ (state_free): New.
+ (states_free): Use it.
+ * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
+ temporary storage: use `errs' and `nerrs' as elsewhere.
+ (set_conflicts): Allocate and free this `errs'.
+
+2002-07-02 Akim Demaille <akim@epita.fr>
+
+ * lib/libiberty.h: New.
+ * lib: Update the bitset implementation from upstream.
+ * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
+ * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
+ * src/main.c: Adjust bitset stats calls.
+
+2002-07-01 Paul Eggert <eggert@twinsun.com>
+
+ * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
+ char, so that negative chars don't collide with $.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Have the GLR tests be `warning' checked, and fix the warnings.
+
+ * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
+ (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
+ (yyremoveDeletes): `yyi' and `yyj' are size_t.
+ Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
+ (yyaddDeferredAction): static.
+ (yyglrReduce): yyi, yyk, amd yyposn are size_t.
+ (yyreportParseError): yyprefix is const.
+ yytokenp is used only when verbose.
+ (yy__GNUC__): Replace with __GNUC__.
+ (yypdumpstack): yyi is size_t.
+ (yypreference): Un-yy local variables and arguments, to avoid
+ clashes with `yyr1'. Anyway, we are not in the user name space.
+ (yytname_size): be an int, as is compared with ints.
+ * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
+ Use them.
+ * tests/cxx-gram.at: Use quotation to protect $1.
+ Use AT_COMPILE to enable warnings hunts.
+ Prototype yylex and yyerror.
+ `Use' argc.
+ Include `string.h', not `strings.h'.
+ Produce and prototype stmtMerge only when used.
+ yylex takes a location.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ We spend a lot of time in quotearg, in particular when --verbose.
+
+ * src/symtab.c (symbol_get): Store a quoted version of the key.
+ (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
+ Adjust all callers.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (reductions_t): Rename member `nreds' as num.
+ (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
+ * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
+ (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
+ (shifts_to): Rename as...
+ (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
+ (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
+ (TRANSITION_IS_DISABLED, transitions_to): these.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (print_shifts, print_gotos): Merge into...
+ (print_transitions): this.
+ (print_transitions, print_errs, print_reductions): Align the
+ lookaheads columns.
+ (print_core, print_transitions, print_errs, print_state,
+ print_grammar): Output empty lines separator before, not after.
+ (state_default_rule_compute): Rename as...
+ (state_default_rule): this.
+ * tests/conflicts.at (Defaulted Conflicted Reduction),
+ (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
+ * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Display items as we display rules.
+
+ * src/gram.h, src/gram.c (rule_lhs_print): New.
+ * src/gram.c (grammar_rules_partial_print): Use it.
+ * src/print.c (print_core): Likewise.
+ * tests/conflicts.at (Defaulted Conflicted Reduction),
+ (Unresolved SR Conflicts): Adjust.
+ (Unresolved SR Conflicts): Adjust and rename as...
+ (Resolved SR Conflicts): this, as was meant.
+ * tests/regression.at (Web2c Report): Adjust.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (state_default_rule_compute): New, extracted from...
+ (print_reductions): here.
+ Pessimize, but clarify the code.
+ * tests/conflicts.at (Defaulted Conflicted Reduction): New.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (action_row): Let default_rule be always a rule
+ number.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (print_firsts, print_fderives, closure):
+ Use BITSET_EXECUTE.
+ * src/lalr.c (lookaheads_print): Likewise.
+ * src/state.c (state_rule_lookaheads_print): Likewise.
+ * src/print_graph.c (print_core): Likewise.
+ * src/print.c (print_reductions): Likewise.
+ * src/output.c (action_row): Likewise.
+ Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/print_graph.c: Use report_flag.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
+ to...
+ * src/relation.h, src/relation.c (traverse, relation_digraph)
+ (relation_print, relation_transpose): New.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (shifts_to): New.
+ * src/lalr.c (build_relations): Use it.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
+ (item_number_of_rule_number, rule_number_of_item_number): New.
+ * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
+ * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
+ * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
+ Propagate their use.
+ Much remains to be done, in particular wrt `shorts' from types.h.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (symbol_new): Initialize the `printer' member.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (save_reductions): Remove, replaced by...
+ * src/state.h, src/state.c (state_reductions_set): New.
+ (reductions, errs): Rename as...
+ (reductions_t, errs_t): these.
+ Adjust all dependencies.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (state_list_t, state_list_append): New.
+ (first_state, last_state): Now symbol_list_t.
+ (this_state): Remove.
+ (new_itemsets, append_states, save_reductions): Take a state_t as
+ argument.
+ (set_states, generate_states): Adjust.
+ (save_shifts): Remove, replaced by...
+ * src/state.h, src/state.c (state_shifts_set): New.
+ (shifts): Rename as...
+ (shifts_t): this.
+ Adjust all dependencies.
+ * src/state.h (state_t): Remove the `next' member.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
+ escaped in slot 0.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Use hash.h for the state hash table.
+
+ * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
+ (allocate_storage): Use state_hash_new.
+ (free_storage): Use state_hash_free.
+ (new_state, get_state): Adjust.
+ * src/lalr.h, src/lalr.c (states): Move to...
+ * src/states.h (state_t): Remove the `link' member, no longer
+ used.
+ * src/states.h, src/states.c: here.
+ (state_hash_new, state_hash_free, state_hash_lookup)
+ (state_hash_insert, states_free): New.
+ * src/states.c (state_table, state_compare, state_hash): New.
+ * src/output.c (output_actions): Do not free states now, since we
+ still need to know the final_state number in `prepare', called
+ afterwards. Do it...
+ * src/main.c (main): here: call states_free after `output'.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (state_new): New, extracted from...
+ * src/LR0.c (new_state): here.
+ * src/state.h (STATE_ALLOC): Move to...
+ * src/state.c: here.
+ * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
+ * src/state.h, src/state.c: here.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (gensym): Rename as...
+ * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
+ (getsym): Rename as...
+ (symbol_get): this.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
+ * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
+ * src/output.c, src/print.c, src/print_graph.c: Propagate.
+ * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
+
+2002-06-30 Akim Demaille <akim@epita.fr>
+
+ Make the test suite pass with warnings checked.
+
+ * tests/actions.at (Printers and Destructors): Improve.
+ Avoid unsigned vs. signed issues.
+ * tests/calc.at: Don't exercise the scanner here, do it...
+ * tests/input.at (Torturing the Scanner): here.
+
+2002-06-28 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/glr.c: Correct typo in Emacs-mode directive. Slightly
+ reorganize first lines parallel to yacc.c.
+
+2002-06-28 Akim Demaille <akim@epita.fr>
+
+ * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
+ (b4_token_enum, b4_token_defines): New, factored from...
+ * data/lalr1.cc, data/yacc.c, glr.c: here.
+
+2002-06-28 Akim Demaille <akim@epita.fr>
+
+ * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
+ unused variables.
+ * src/output.c (merger_output): static.
+
+2002-06-28 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
+ * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
+ pacify GCC.
+ * src/output.c (save_row): Initialize all the variables to pacify GCC.
+
+2002-06-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ Accumulated changelog for new GLR parsing features.
+
+ * src/conflicts.c (count_total_conflicts): Change name to
+ conflicts_total_count.
+ * src/conflicts.h: Ditto.
+ * src/output.c (token_actions): Use the new name.
+ (output_conflicts): Change conflp => conflict_list_heads, and
+ confl => conflict_list for better readability.
+ * data/glr.c: Use the new names.
+ * NEWS: Add self to GLR announcement.
+
+ * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
+
+ * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
+ Akim Demaille.
+
+ * data/bison.glr: Change name to glr.c
+ * data/glr.c: Renamed from bison.glr.
+ * data/Makefile.am: Add glr.c
+
+ * src/getargs.c:
+
+ * src/symlist.h: Add dprec and merger fields to symbol_list_s.
+ * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
+
+ Originally 2002-06-16 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/bison.glr: Be sure to restore the
+ current #line when returning to the skeleton contents after having
+ exposed the input file's #line.
+
+ Originally 2002-06-13 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/bison.glr: Bring up to date with changes to bison.simple.
+
+ Originally 2002-06-03 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/bison.glr: Correct definitions that use b4_prefix.
+ Various reformatting.
+ (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
+ (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
+ yytokenp argument; now part of stack.
+ (yychar): Define to behave as documented.
+ (yyclearin): Ditto.
+
+ Originally 2002-05-14 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * src/reader.h: Add declaration for free_merger_functions.
+
+ * src/reader.c (merge_functions): New variable.
+ (get_merge_function): New function.
+ (free_merger_functions): New function.
+ (readgram): Check for %prec that is not followed by a symbol.
+ Handle %dprec and %merge declarations.
+ (packgram): Initialize dprec and merger fields in rules array.
+
+ * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
+ conflict_list_cnt, conflict_list_free): New variables.
+ (table_grow): Also grow conflict_table.
+ (prepare_rules): Output dprec and merger tables.
+ (conflict_row): New function.
+ (action_row): Output conflict lists for GLR parser. Don't use
+ default reduction in conflicted states for GLR parser so that there
+ are spaces for the conflict lists.
+ (save_row): Also save conflict information.
+ (token_actions): Allocate conflict list.
+ (merger_output): New function.
+ (pack_vector): Pack conflict table, too.
+ (output_conflicts): New function to output yyconflp and yyconfl.
+ (output_check): Allocate conflict_tos.
+ (output_actions): Output conflict tables, also.
+ (output_skeleton): Output b4_mergers definition.
+ (prepare): Output b4_max_rhs_length definition.
+ Use 'bison.glr' as default skeleton for GLR parsers.
+
+ * src/gram.c (glr_parser): New flag.
+ (grammar_free): Call free_merger_functions.
+
+ * src/conflicts.c (count_rr_conflicts): Augment to optionally count
+ all pairs of conflicting reductions, rather than just all tokens
+ causing conflicts. Needed to size conflict tables.
+ (conflicts_output): Modify call to count_rr_conflicts for new
+ interface.
+ (conflicts_print): Ditto.
+ (count_total_conflicts): New function.
+
+ * src/reader.h (merger_list): New type.
+ (merge_functions): New variable.
+
+ * src/lex.h (tok_dprec, tok_merge): New token types.
+
+ * src/gram.h (rule_s): Add dprec and merger fields.
+ (glr_parser): New flag.
+
+ * src/conflicts.h (count_total_conflicts): New function.
+
+ * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
+
+ * doc/bison.texinfo (Generalized LR Parsing): New section.
+ (GLR Parsers): New section.
+ (Language and Grammar): Mention GLR parsing.
+ (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
+ Correct typo ("tge" -> "the").
+
+ * data/bison.glr: New skeleton for GLR parsing.
+
+ * tests/cxx-gram.at: New tests for GLR parsing.
+
+ * tests/testsuite.at: Include cxx-gram.at.
+
+ * tests/Makefile.am: Add cxx-gram.at.
+
+ * src/parse-gram.y:
+
+ * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
+
+ * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
+
+2002-06-27 Akim Demaille <akim@epita.fr>
+
+ * src/options.h, src/options.c: Remove.
+ * src/getargs.c (short_options, long_options): New.
+
+2002-06-27 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple, data/bison.c++: Rename as...
+ * data/yacc.c, data/lalr1.cc: these.
+ * doc/bison.texinfo (Environment Variables): Remove.
+
+2002-06-25 Raja R Harinath <harinath@cs.umn.edu>
+
+ * src/getargs.c (report_argmatch): Initialize strtok().
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (b4_symbol_actions): New, replaces...
+ (b4_symbol_destructor, b4_symbol_printer): these.
+ (yysymprint): Be sure to call YYPRINT only for tokens, and using
+ user token numbers.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (yydestructor): Rename as...
+ (yydestruct): this.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_type_set)
+ (symbol_destructor_set, symbol_precedence_set): The location is
+ the last argument.
+ Adjust all callers.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
+ internals.
+ * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
+ Takes a location.
+ * src/symtab.h, src/symtab.c (symbol_class_set)
+ (symbol_user_token_number_set): Likewise.
+ Adjust all callers.
+ Promote complain_at.
+ * tests/input.at (Type Clashes): Adjust.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (YYLEX): Fix the declaration when
+ %pure-parser.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (yysymprint): Don't print the token number,
+ just its name.
+ * tests/actions.at (Destructors): Rename as...
+ (Printers and Destructors): this.
+ Also exercise %printer.
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (YYDSYMPRINT): New.
+ Use it to remove many of the #if YYDEBUG/if (yydebug).
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_t): printer and
+ printer_location are new members.
+ (symbol_printer_set): New.
+ * src/parse-gram.y (PERCENT_PRINTER): New token.
+ Handle its associated rule.
+ * src/scan-gram.l: Adjust.
+ (handle_destructor_at, handle_destructor_dollar): Rename as...
+ (handle_symbol_code_at, handle_symbol_code_dollar): these.
+ * src/output.c (symbol_printers_output): New.
+ (output_skeleton): Call it.
+ * data/bison.simple (yysymprint): New. Cannot be named yyprint
+ since there are already many grammar files with a user `yyprint'.
+ Replace the calls to YYPRINT to calls to yysymprint.
+ * tests/calc.at: Adjust.
+ * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
+ taking advantage of parser very internal details (stack size!).
+
+2002-06-20 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l: Complete the scanner with the missing patterns
+ to pacify Flex.
+ Use `quote' and `symbol_tag_get' where appropriate.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (Destructors): Augment to test locations.
+ * data/bison.simple (yydestructor): Pass it the current location
+ if locations are enabled.
+ Prototype only when __STDC__ or C++.
+ Change the argument names to move into the yy name space: there is
+ user code here.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (b4_pure_if): New.
+ Use it instead of #ifdef YYPURE.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (b4_location_if): New.
+ Use it instead of #ifdef YYLSP_NEEDED.
+
+2002-06-19 Akim Demaille <akim@epita.fr>
+
+ Prepare @$ in %destructor, but currently don't bind it in the
+ skeleton, as %location use is not cleaned up yet.
+
+ * src/scan-gram.l (handle_dollar, handle_destructor_at)
+ (handle_action_at): New.
+ (handle_at, handle_action_dollar, handle_destructor_dollar): Take
+ a braced_code_t and a location as additional arguments.
+ (handle_destructor_dollar): Instead of requiring `b4_eval', just
+ unquote one when outputting `b4_dollar_dollar'.
+ Adjust callers.
+ * data/bison.simple (b4_eval): Remove.
+ (b4_symbol_destructor): Adjust.
+ * tests/input.at (Invalid @n): Adjust.
+
+2002-06-19 Zack Weinberg <zack@codesourcery.com>
+
+ * doc/bison.texinfo: Document ability to have multiple
+ prologue sections.
+
+2002-06-18 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (compute_base_names): When computing the output file
+ names from the input file name, strip the directory part.
+
+2002-06-18 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple.new: Comment changes.
+ Reported by Andreas Schwab.
+
+2002-06-18 Matt Kraai <kraai@alumni.cmu.edu>
+
+ * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
+ there are no `label `yyoverflowlab' defined but not used' warnings
+ when yyoverflow is defined.
+
+2002-06-18 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
+ new member.
+ (symbol_destructor_set): Adjust.
+ * src/output.c (symbol_destructors_output): Output the destructor
+ locations.
+ Output the symbol name.
+ * data/bison.simple (b4_symbol_destructor): Adjust.
+
+2002-06-18 Cris Bailiff <c.bailiff@awayweb.com>
+ and Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
+ what's left on the stack when the error recovery hits EOF.
+ * tests/actions.at (Destructors): Complete to exercise this case.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
+ arguments is really empty, not only equal to `[]'.
+ * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
+ member.
+ (symbol_destructor_set): New.
+ * src/output.c (symbol_destructors_output): New.
+ * src/reader.h (brace_code_t, current_braced_code): New.
+ * src/scan-gram.l (BRACED_CODE): Use it to branch on...
+ (handle_dollar): Rename as...
+ (handle_action_dollar): this.
+ (handle_destructor_dollar): New.
+ * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
+ (grammar_declaration): Use it.
+ * data/bison.simple (yystos): Is always defined.
+ (yydestructor): New.
+ * tests/actions.at (Destructors): New.
+ * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * src/symlist.h, src/symlist.c (symbol_list_length): New.
+ * src/scan-gram.l (handle_dollar, handle_at): Compute the
+ rule_length only when needed.
+ * src/output.c (actions_output, token_definitions_output): Output
+ the full M4 block.
+ * src/symtab.c: Don't access directly to the symbol tag, use
+ symbol_tag_get.
+ * src/parse-gram.y: Use symbol_list_free.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
+ (symbol_list_prepend, get_type_name): Move to...
+ * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
+ (symbol_list_prepend, symbol_list_n_type_name_get): here.
+ Adjust all callers.
+ (symbol_list_free): New.
+ * src/scan-gram.l (handle_dollar): Takes a location.
+ * tests/input.at (Invalid $n): Adjust.
+
+2002-06-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h, src/reader.c (symbol_list_new): Export it.
+ (symbol_list_prepend): New.
+ * src/parse-gram.y (%union): `list' is a new member.
+ (symbols.1): New, replaces...
+ (terms_to_prec.1, nterms_to_type.1): these.
+ * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
+ Take a location as additional argument.
+ Adjust all callers.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y: Move %token in the declaration section so that
+ we don't depend upon CVS Bison.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (state_rule_lookaheads_print): New.
+ * src/print.c (print_core): Use it.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (log_resolution): Accept the rule involved in
+ the sr conflicts instead of the lookahead number that points to
+ that rule.
+ (flush_reduce): Accept the current lookahead vector as argument,
+ instead of the index in LA.
+ (resolve_sr_conflict): Accept the current number of lookahead
+ bitset to consider for the STATE, instead of the index in LA.
+ (set_conflicts): Adjust.
+ * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (state_t): Replace the `lookaheadsp' member, a
+ short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
+ Adjust all dependencies.
+ * src/lalr.c (initialize_lookaheads): Split into...
+ (states_lookaheads_count, states_lookaheads_initialize): these.
+ (lalr): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
+ out of...
+ (grammar_rules_print): here.
+ * src/reduce.c (reduce_output): Use it.
+ * tests/reduce.at (Useless Rules, Reduced Automaton)
+ (Underivable Rules): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ Copy BYacc's nice way to report the grammar.
+
+ * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
+ New.
+ Don't print the rules' location, it is confusing and useless.
+ (rule_print): Use grammar_rhs_print.
+ * src/print.c (print_grammar): Use grammar_rules_print.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ Complete and rationalize `useless thing' warnings.
+
+ * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
+ (symbol_tag_print): New.
+ Use them everywhere in place of accessing directly the tag member.
+ * src/gram.h, src/gram.c (rule_print): New.
+ Use it where a rule used to be printed `by hand'.
+ * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
+ (reduce_grammar_tables): Report the useless rules.
+ (reduce_print): Useless things are a warning, not an error.
+ Report it as such.
+ * tests/reduce.at (Useless Nonterminals, Useless Rules):
+ (Reduced Automaton, Underivable Rules): Adjust.
+ * tests/regression.at (Web2c Report, Web2c Report): Adjust.
+ * tests/conflicts.at (Unresolved SR Conflicts)
+ (Solved SR Conflicts): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ Let symbols have a location.
+
+ * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
+ (getsym): Adjust.
+ Adjust all callers.
+ * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
+ Use location_t, not int.
+ * src/symtab.c (symbol_check_defined): Take advantage of the
+ location.
+ * tests/regression.at (Invalid inputs): Adjust.
+
+2002-06-15 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
+ (input): Don't try to initialize yylloc here, do it in the
+ scanner.
+ * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
+ * src/gram.h (rule_t): Change line and action_line into location
+ and action_location, of location_t type.
+ Adjust all dependencies.
+ * src/location.h, src/location.c (empty_location): New.
+ * src/reader.h, src/reader.c (grammar_start_symbol_set)
+ (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
+ (grammar_current_rule_symbol_append)
+ (grammar_current_rule_action_append): Expect a location as argument.
+ * src/reader.c (grammar_midrule_action): Adjust to attach an
+ action's location as dummy symbol location.
+ * src/symtab.h, src/symtab.c (startsymbol_location): New.
+ * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
+ the line numbers.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ Grammar declarations may be found in the grammar section.
+
+ * src/parse-gram.y (rules_or_grammar_declaration): New.
+ (declarations): Each declaration may end with a semicolon, not
+ just...
+ (grammar_declaration): `"%union"'.
+ (grammar): Branch to rules_or_grammar_declaration.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ * src/main.c (main): Invoke scanner_free.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (m4_invoke): Extracted from...
+ (output_skeleton): here.
+ Free tempfile.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ * src/parse-gram.y (directives, directive, gram)
+ (grammar_directives, precedence_directives, precedence_directive):
+ Rename as...
+ (declarations, declaration, grammar, grammar_declaration)
+ (precedence_declaration, precedence_declarator): these.
+ (symbol_declaration): New.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (action_obstack): Remove, unused.
+ (output_obstack): Remove it, and all its dependencies, as it is no
+ longer needed.
+ * src/reader.c (epilogue_set): Build the epilogue in the
+ muscle_obstack.
+ * src/output.h, src/output.c (muscle_obstack): Move to...
+ * src/muscle_tab.h, src/muscle_tab.h: here.
+ (muscle_init): Initialize muscle_obstack.
+ (muscle_free): New.
+ * src/main.c (main): Call it.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ * src/location.h: New, extracted from...
+ * src/reader.h: here.
+ * src/Makefile.am (noinst_HEADERS): Merge into
+ (bison_SOURCES): this.
+ Add location.h.
+ * src/parse-gram.y: Use location_t instead of Bison's.
+ * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
+ Use location_t instead of ints.
+
+2002-06-14 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple, data/bison.c++: Be sure to restore the
+ current #line when returning to the skeleton contents after having
+ exposed the input file's #line.
+
+2002-06-12 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
+ eager.
+ * tests/actions.at (Exotic Dollars): New.
+
+2002-06-12 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
+ ['"/] too eagerly.
+ * tests/input.at (Torturing the Scanner): New.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
+ [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
+ [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
+ * src/reader.h, src/scan-gram.l (scanner_initialize): this.
+ * src/reader.c (reader): Use it.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
+ Adjust all callers.
+ (scanner_last_string_free): New.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
+ (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
+ (last_string, YY_OBS_FREE): New.
+ Use them when returning an ID.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ Have Bison grammars parsed by a Bison grammar.
+
+ * src/reader.c, src/reader.h (prologue_augment): New.
+ * src/reader.c (copy_definition): Remove.
+
+ * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
+ (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
+ (grammar_current_rule_prec_set, grammar_current_rule_check)
+ (grammar_current_rule_symbol_append)
+ (grammar_current_rule_action_append): Export.
+ * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
+ (symbol_list_action_append): Remove.
+ Hook the routines from reader.
+ * src/scan-gram.l: In INITIAL, characters and strings are tokens.
+ * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
+
+ * src/reader.c (read_declarations): Remove, unused.
+
+ * src/parse-gram.y: Handle the epilogue.
+ * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
+ (grammar_start_symbol_set): this.
+ * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
+ * src/reader.c (readgram): Remove, unused.
+ (reader): Adjust to insert eoftoken and axiom where appropriate.
+
+ * src/reader.c (copy_dollar): Replace with...
+ * src/scan-gram.h (handle_dollar): this.
+ * src/parse-gram.y: Remove `%thong'.
+
+ * src/reader.c (copy_at): Replace with...
+ * src/scan-gram.h (handle_at): this.
+
+ * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
+ New.
+
+ * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
+ time being.
+
+ * src/reader.h, src/reader.c (grammar_rule_end): New.
+
+ * src/parse.y (current_type, current_class): New.
+ Implement `%nterm', `%token' support.
+ Merge `%term' into `%token'.
+ (string_as_id): New.
+ * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
+ type name.
+
+ * src/parse-gram.y: Be sure to handle properly the beginning of
+ rules.
+
+ * src/parse-gram.y: Handle %type.
+ * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
+
+ * src/parse-gram.y: More directives support.
+ * src/options.c: No longer handle source directives.
+
+ * src/parse-gram.y: Fix %output.
+
+ * src/parse-gram.y: Handle %union.
+ Use the prologue locations.
+ * src/reader.c (parse_union_decl): Remove.
+
+ * src/reader.h, src/reader.c (epilogue_set): New.
+ * src/parse-gram.y: Use it.
+
+ * data/bison.simple, data/bison.c++: b4_stype is now either not
+ defined, then default to int, or to the contents of %union,
+ without `union' itself.
+ Adjust.
+ * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
+
+ * src/output.c (actions_output): Don't output braces, as they are
+ already handled by the scanner.
+
+ * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
+ characters to themselves.
+
+ * tests/reduce.at (Reduced Automaton): End the grammars with %% so
+ that the epilogue has a proper #line.
+
+ * src/parse-gram.y: Handle precedence/associativity.
+
+ * src/symtab.c (symbol_precedence_set): Requires the symbol to be
+ a terminal.
+ * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
+ * tests/calc.at: Do not use `%token "foo"' as it makes not sense
+ at all to define terminals that cannot be emitted.
+
+ * src/scan-gram.l: Escape M4 characters.
+
+ * src/scan-gram.l: Working properly with escapes in user
+ strings/characters.
+
+ * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
+ (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
+ grammar.
+ Use more modest sizes, as for the time being the parser does not
+ release memory, and therefore the process swallows a huge amount
+ of memory.
+
+ * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
+ stricter %token grammar.
+
+ * src/symtab.h (associativity): Add `undef_assoc'.
+ (symbol_precedence_set): Do nothing when passed an undef_assoc.
+ * src/symtab.c (symbol_check_alias_consistence): Adjust.
+
+ * tests/regression.at (Invalid %directive): Remove, as it is now
+ meaningless.
+ (Invalid inputs): Adjust to the new error messages.
+ (Token definitions): The new grammar doesn't allow too many
+ eccentricities.
+
+ * src/lex.h, src/lex.c: Remove.
+ * src/reader.c (lastprec, skip_to_char, read_signed_integer)
+ (copy_character, copy_string2, copy_string, copy_identifier)
+ (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
+ (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
+ (parse_action): Remove.
+ * po/POTFILES.in: Adjust.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_action): Don't store directly into the
+ rule's action member: return the action as a string.
+ Don't require `rule_length' as an argument: compute it.
+ (grammar_current_rule_symbol_append)
+ (grammar_current_rule_action_append): New, eved out from
+ (readgram): here.
+ Remove `action_flag', `rulelength', unused now.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (grammar_current_rule_prec_set).
+ (grammar_current_rule_check): New, eved out from...
+ (readgram): here.
+ Remove `xaction', `first_rhs': useless.
+ * tests/input.at (Type clashes): New.
+ * tests/existing.at (GNU Cim Grammar): Adjust.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (grammar_midrule_action): New, Eved out from
+ (readgram): here.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
+ New.
+ (readgram): Use them as replacement of inlined code, crule and
+ crule1.
+
+2002-06-11 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (grammar_end, grammar_symbol_append): New.
+ (readgram): Use them.
+ Make the use of `p' as local as possible.
+
+2002-06-10 Akim Demaille <akim@epita.fr>
+
+ GCJ's parser requires the tokens to be defined before the prologue.
+
+ * data/bison.simple: Output the token definition before the user's
+ prologue.
+ * tests/regression.at (Braces parsing, Duplicate string)
+ (Mixing %token styles): Check the output from bison.
+ (Early token definitions): New.
+
+2002-06-10 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (symbol_user_token_number_set): Don't complain when
+ assigning twice the same user number to a token, so that we can
+ use it in...
+ * src/lex.c (lex): here.
+ Also use `symbol_class_set' instead of hand written code.
+ * src/reader.c (parse_assoc_decl): Likewise.
+
+2002-06-10 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c, src/symtab.c (symbol_class_set)
+ (symbol_user_token_number_set): New.
+ * src/reader.c (parse_token_decl): Use them.
+ Use a switch instead of ifs.
+ Use a single argument.
+
+2002-06-10 Akim Demaille <akim@epita.fr>
+
+ Remove `%thong' support as it is undocumented, unused, duplicates
+ `%token's job, and creates useless e-mail traffic with people who
+ want to know what it is, why it is undocumented, unused, and
+ duplicates `%token's job.
+
+ * src/reader.c (parse_thong_decl): Remove.
+ * src/options.c (option_table): Remove "thong".
+ * src/lex.h (tok_thong): Remove.
+
+2002-06-10 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c, src/symtab.c (symbol_type_set)
+ (symbol_precedence_set): New.
+ * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
+ (value_components_used): Remove, unused.
+
+2002-06-09 Akim Demaille <akim@epita.fr>
+
+ Move symbols handling code out of the reader.
+
+ * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
+ (axiom): Move to...
+ * src/symtab.h, src/symtab.c: here.
+
+ * src/gram.c (start_symbol): Remove: use startsymbol->number.
+ * src/reader.c (startval): Rename as...
+ * src/symtab.h, src/symtab.c (startsymbol): this.
+ * src/reader.c: Adjust.
+
+ * src/reader.c (symbol_check_defined, symbol_make_alias)
+ (symbol_check_alias_consistence, symbol_pack, symbol_translation)
+ (token_translations_init)
+ Move to...
+ * src/symtab.c: here.
+ * src/reader.c (packsymbols): Move to...
+ * src/symtab.h, src/symtab.c (symbols_pack): here.
+ * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
+ argument.
+
+2002-06-03 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
+ then statements.
+
+2002-06-03 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
+ structs with non literals.
+ * src/scan-skel.l: never-interactive.
+ * src/conflicts.c (enum conflict_resolution_e): No trailing
+ comma.
+ * src/getargs.c (usage): Split long literal strings.
+ Reported by Hans Aberg.
+
+2002-05-28 Akim Demaille <akim@epita.fr>
+
+ * data/bison.c++: Use C++ ostreams.
+ (cdebug_): New member.
+
+2002-05-28 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_skeleton): Be sure to allocate enough room
+ for `/' _and_ for `\0' in full_skeleton.
+
+2002-05-28 Akim Demaille <akim@epita.fr>
+
+ * data/bison.c++: Catch up with bison.simple:
+ 2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+ and Paul Eggert <eggert@twinsun.com>: `error' handing.
+ 2002-05-26 Akim Demaille <akim@epita.fr>: stos_, token_number_,
+ and popping traces.
+
+2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * src/output.c (output_skeleton): Put an explicit path in front of
+ the skeleton file name, rather than relying on the -I directory,
+ to partially alleviate effects of having a skeleton file lying around
+ in the current directory.
+
+2002-05-27 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * src/conflicts.c (log_resolution): Correct typo:
+ obstack_printf should be obstack_fgrow1.
+
+2002-05-26 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (state_t): `solved_conflicts' is a new member.
+ * src/LR0.c (new_state): Set it to 0.
+ * src/conflicts.h, src/conflicts.c (print_conflicts)
+ (free_conflicts, solve_conflicts): Rename as...
+ (conflicts_print, conflicts_free, conflicts_solve): these.
+ Adjust callers.
+ * src/conflicts.c (enum conflict_resolution_e)
+ (solved_conflicts_obstack): New, used by...
+ (log_resolution): this.
+ Adjust to attach the conflict resolution to each state.
+ Complete the description with the precedence/associativity
+ information.
+ (resolve_sr_conflict): Adjust.
+ * src/print.c (print_state): Output its solved_conflicts.
+ * tests/conflicts.at (Unresolved SR Conflicts)
+ (Solved SR Conflicts): Exercise --report=all.
+
+2002-05-26 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
+ * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
+ * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
+ (token_number_t, item_number_as_token_number)
+ (token_number_as_item_number, muscle_insert_token_number_table):
+ Rename as...
+ (symbol_number_t, item_number_as_symbol_number)
+ (symbol_number_as_item_number, muscle_insert_symbol_number_table):
+ these, since it is more appropriate.
+
+2002-05-26 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
+ `Error:' lines.
+ * data/bison.simple (yystos) [YYDEBUG]: New.
+ (yyparse) [YYDEBUG]: Display the symbols which are popped during
+ error recovery.
+ * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
+
+2002-05-25 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Debugging): Split into...
+ (Tracing): this new section, its former contents, and...
+ (Understanding): this new section.
+ * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
+ by...
+ (report_flag): this.
+ Adjust all dependencies.
+ (report_args, report_types, report_argmatch): New.
+ (usage, getargs): Report/support -r, --report.
+ * src/options.h
+ (struct option_table_struct): Rename as..,
+ (struct option_table_s): this.
+ Rename the `set_flag' member to `flag' to match with getopt_long's
+ struct.
+ * src/options.c (option_table): Split verbose into an entry for
+ %verbose, and another for --verbose.
+ Support --report/-r, so remove -r from the obsolete --raw.
+ * src/print.c: Attach full item sets and lookaheads reports to
+ report_flag instead of trace_flag.
+ * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
+
+2002-05-24 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+ and Paul Eggert <eggert@twinsun.com>
+
+ * data/bison.simple (yyparse): Correct error handling to conform to
+ POSIX and yacc. Specifically, after syntax error is discovered,
+ do not reduce further before shifting the error token.
+ Clean up the code a bit by removing the labels yyerrdefault,
+ yyerrhandle, yyerrpop.
+ * NEWS: Document the above.
+
+2002-05-20 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * data/bison.simple (yyr1): Don't use yy_token_number_type as element
+ type; it isn't always big enough, since it doesn't necessarily
+ include non-terminals.
+ (yytranslate): Expand definition of yy_token_number_type, so that
+ the latter can be removed.
+ (yy_token_number_type): Remove, only one use.
+ * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
+ don't use TokenNumberType as element type.
+
+ * tests/regression.at: Modify expected output to agree with change
+ to yyr1 and yytranslate.
+
+2002-05-13 Florian Krohm <florian@edamail.fishkill.ibm.com>
+
+ * src/reader.c (parse_action): Use copy_character instead of
+ obstack_1grow.
+
+2002-05-13 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Token definitions): Prototype yylex and
+ yyerror.
+
+2002-05-12 Paul Hilfinger <Hilfinger@CS.Berkeley.EDU>
+
+ * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
+ * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
+ 32-bit arithmetic.
+ * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
+
+2002-05-07 Akim Demaille <akim@epita.fr>
+
+ * tests/synclines.at: Be sure to prototype yylex and yyerror to
+ avoid GCC warnings.
+
+2002-05-07 Akim Demaille <akim@epita.fr>
+
+ Kill GCC warnings.
+
+ * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
+ over the RHS of each rule.
+ * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
+ * src/state.h (state_t): Member `nitems' is unsigned short.
+ * src/LR0.c (get_state): Adjust.
+ * src/reader.c (packgram): Likewise.
+ * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
+ `Type'.
+ (muscle_insert_int_table): Remove, unused.
+ (prepare_rules): Remove `max'.
+
+2002-05-06 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (print_firsts): Display of the symbol tags.
+ (bitmatrix_print): Move to...
+ * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
+ here.
+ * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
+
+2002-05-06 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
+ hash_do_for_each.
+
+2002-05-06 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (new_state, get_state): Instead of using the global
+ `kernel_size' and `kernel_base', have two new arguments:
+ `core_size' and `core'.
+ Adjust callers.
+
+2002-05-06 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (packgram): No longer end `ritem' with a 0
+ sentinel: it is not used.
+
+2002-05-05 Akim Demaille <akim@epita.fr>
+
+ New experimental feature: display the lookaheads in the report and
+ graph.
+
+ * src/print (print_core): When --trace-flag, display the rules
+ lookaheads.
+ * src/print_graph.c (print_core): Likewise.
+ Swap the arguments.
+ Adjust caller.
+
+2002-05-05 Akim Demaille <akim@epita.fr>
+
+ * tests/torture.at (Many lookaheads): New test.
+
+2002-05-05 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
+ (GENERATE_MUSCLE_INSERT_TABLE): this.
+ (output_int_table, output_unsigned_int_table, output_short_table)
+ (output_token_number_table, output_item_number_table): Replace with...
+ (muscle_insert_int_table, muscle_insert_unsigned_int_table)
+ (muscle_insert_short_table, muscle_insert_token_number_table)
+ (muscle_insert_item_number_table): these.
+ Adjust all callers.
+ (prepare_tokens): Don't free `translations', since...
+ * src/reader.h, src/reader.c (grammar_free): do it.
+ Move to...
+ * src/gram.h, src/gram.c (grammar_free): here.
+ * data/bison.simple, data/bison.c++: b4_token_number_max is now
+ b4_translate_max.
+
+2002-05-05 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_unsigned_int_table): New.
+ (prepare_rules): `i' is unsigned.
+ `prhs', `rline', `r2' are unsigned int.
+ Rename muscle `rhs_number_max' as `rhs_max'.
+ Output muscles `prhs_max', `rline_max', and `r2_max'.
+ Free rline and r1.
+ * data/bison.simple, data/bison.c++: Adjust to use these muscles
+ to compute types instead of constant types.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-05-04 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h (SALIAS, SUNDEF): Rename as...
+ (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
+ Adjust dependencies.
+ * src/output.c (token_definitions_output): Be sure not to output a
+ `#define 'a'' when fed with `%token 'a' "a"'.
+ * tests/regression.at (Token definitions): New.
+
+2002-05-03 Paul Eggert <eggert@twinsun.com>
+
+ * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
+ for K&R C.
+
+2002-05-03 gettextize <bug-gnu-gettext@gnu.org>
+
+ * Makefile.am (SUBDIRS): Remove intl.
+ (EXTRA_DIST): Add config/config.rpath.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (m4_if): Don't output empty enums.
+ And actually, output valid enum definitions :(.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * configure.bat: Remove, completely obsolete.
+ * Makefile.am (EXTRA_DIST): Adjust.
+ Don't distribute config.rpath...
+ * config/Makefile.am (EXTRA_DIST): Do it.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * configure.in (GETTEXT_VERSION): New.
+ Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (b4_token_enum): New.
+ (b4_token_defines): Use it to output tokens both as #define and
+ enums.
+ Suggested by Paul Eggert.
+ * src/output.c (token_definitions_output): Don't output spurious
+ white spaces.
+
+2002-05-03 Akim Demaille <akim@epita.fr>
+
+ * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
+
+2002-05-02 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
+ Update the stack class, give a try to deque as the default container.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (yyparse): Do not implement @$ = @1.
+ (YYLLOC_DEFAULT): Adjust to do it.
+ * doc/bison.texinfo (Location Default Action): Fix.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_braces): Merge into...
+ (parse_action): this.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * configure.in (ALL_LINGUAS): Remove.
+ * po/LINGUAS, hr.po: New.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ Remove the so called hairy (semantic) parsers.
+
+ * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
+ * src/gram.h, src/gram.c (semantic_parser): Remove.
+ (rule_t): Remove the guard and guard_line members.
+ * src/lex.h (token_t): remove tok_guard.
+ * src/options.c (option_table): Remove %guard and %semantic_parser
+ support.
+ * src/output.c, src/output.h (guards_output): Remove.
+ (prepare): Adjust.
+ (token_definitions_output): Don't output the `T'
+ tokens (???).
+ (output_skeleton): Don't output the guards.
+ * src/files.c, src/files.c (attrsfile): Remove.
+ * src/reader.c (symbol_list): Remove the guard and guard_line
+ members.
+ Adjust dependencies.
+ (parse_guard): Remove.
+ * data/bison.hairy: Remove.
+ * doc/bison.texinfo (Environment Variables): Remove occurrences of
+ BISON_HAIRY.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
+ (parse_guard): Rename the formal argument `stack_offset' as
+ `rule_length', which is more readable.
+ Adjust callers.
+ (copy_at, copy_dollar): Instead of outputting the hard coded
+ values of $$, $n and so forth, output invocation to b4_lhs_value,
+ b4_lhs_location, b4_rhs_value, and b4_rhs_location.
+ Note: this patch partially drops `semantic-parser' support: it
+ always does `rule_length - n', where semantic parsers ought to
+ always use `-n'.
+ * data/bison.simple, data/bison.c++ (b4_lhs_value)
+ (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ * configure.in (AC_INIT): Bump to 1.49b.
+ (AM_INIT_AUTOMAKE): Short invocation.
+
+2002-05-02 Akim Demaille <akim@epita.fr>
+
+ Version 1.49a.
+
+2002-05-01 Akim Demaille <akim@epita.fr>
+
+ * src/skeleton.h: Remove.
+
+2002-05-01 Akim Demaille <akim@epita.fr>
+
+ * src/skeleton.h: Fix the #endif.
+ Reported by Magnus Fromreide.
+
+2002-04-26 Paul Eggert <eggert@twinsun.com>
+
+ * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
+ Define if we define YYSTYPE and YYLTYPE, respectively.
+ (YYCOPY): Fix [] quoting problem in the non-GCC case.
+
+2002-04-25 Robert Anisko <robert@lrde.epita.fr>
+
+ * src/scan-skel.l: Postprocess quadrigraphs.
+
+ * src/reader.c (copy_character): New function, used to output
+ single characters while replacing `[' and `]' with quadrigraphs, to
+ avoid troubles with M4 quotes.
+ (copy_comment): Output characters with copy_character.
+ (read_additionnal_code): Likewise.
+ (copy_string2): Likewise.
+ (copy_definition): Likewise.
+
+ * tests/calc.at: Exercise M4 quoting.
+
+2002-04-25 Akim Demaille <akim@epita.fr>
+
+ * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
+ between `!' and the command.
+ Reported by Paul Eggert.
+
+2002-04-24 Robert Anisko <robert@lrde.epita.fr>
+
+ * tests/calc.at: Exercise prologue splitting.
+
+ * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
+ `b4_post_prologue' instead of `b4_prologue'.
+
+ * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
+ muscles.
+ (output): Free pre_prologue_obstack and post_prologue_obstack.
+ * src/files.h, src/files.c (attrs_obstack): Remove.
+ (pre_prologue_obstack, post_prologue_obstack): New.
+ * src/reader.c (copy_definition): Add a parameter to specify the
+ obstack to fill, instead of using attrs_obstack unconditionally.
+ (read_declarations): Pass pre_prologue_obstack to copy_definition if
+ `%union' has not yet been seen, pass post_prologue_obstack otherwise.
+
+2002-04-23 Paul Eggert <eggert@twinsun.com>
+
+ * data/bison.simple: Remove unnecessary commentary and white
+ space differences from 1_29-branch.
+ Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
+
+ (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
+ YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
+ if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
+ constructors or destructors.
+
+ (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
+
+2002-04-23 Akim Demaille <akim@epita.fr>
+
+ * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
+ * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
+ location with columns.
+ * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
+ All reported by Paul Eggert.
+
+2002-04-22 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (dump_grammar): Move to...
+ * src/gram.h, src/gram.c (grammar_dump): here.
+ Be sure to separate long item numbers.
+ Don't read the members of a rule's prec if its nil.
+
+2002-04-22 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (table_size, table_grow): New.
+ (MAXTABLE): Remove, replace uses with table_size.
+ (pack_vector): Instead of dying when the table is too big, grow it.
+
+2002-04-22 Akim Demaille <akim@epita.fr>
+
+ * data/bison.simple (yyr1): Its type is that of a token number.
+ * data/bison.c++ (r1_): Likewise.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-22 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (token_translations_init): 256 is now the default
+ value for the error token, i.e., it will be assigned another
+ number if the user assigned 256 to one of her tokens.
+ (reader): Don't force 256 to error.
+ * doc/bison.texinfo (Symbols): Adjust.
+ * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
+ (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
+ etc. instead of 10, 20, 30 (which was used to `jump' over error
+ (256) and undefined (2)).
+
+2002-04-22 Akim Demaille <akim@epita.fr>
+
+ Propagate more token_number_t.
+
+ * src/gram.h (token_number_as_item_number)
+ (item_number_as_token_number): New.
+ * src/output.c (GENERATE_OUTPUT_TABLE): New.
+ Use it to create output_item_number_table and
+ output_token_number_table.
+ * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
+ * src/lex.c, src/nullable.c, src/output.c, src/print.c,
+ * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
+ * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
+
+2002-04-22 Akim Demaille <akim@epita.fr>
+
+ * src/output.h, src/output.c (get_lines_number): Remove.
+
+2002-04-19 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Actions): Make clear that `|' is not the same
+ as Lex/Flex'.
+ (Debugging): More details about enabling the debugging features.
+ (Table of Symbols): Describe $$, $n, @$, and @n.
+ Suggested by Tim Josling.
+
+2002-04-19 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Remove the uses of the obsolete @refill.
+
+2002-04-10 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Rely on HAVE_LIMITS_H.
+ Suggested by Paul Eggert.
+
+2002-04-09 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
+ full stderr, and strip it according to the bison options, instead
+ of composing the error message from different bits.
+ This makes it easier to check for several error messages.
+ Adjust all the invocations.
+ Add an invocation exercising the error token.
+ Add an invocation demonstrating a stupid error message.
+ (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
+ Adjust the tests.
+ Error message are for stderr, not stdout.
+
+2002-04-09 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (error_token_number): Remove, use
+ errtoken->number.
+ * src/reader.c (reader): Don't specify the user token number (2)
+ for $undefined, as it uselessly prevents using it.
+ * src/gram.h (token_number_t): Move to...
+ * src/symtab.h: here.
+ (state_t.number): Is a token_number_t.
+ * src/print.c, src/reader.c: Use undeftoken->number instead of
+ hard coded 2.
+ (Even though this 2 is not the same as above: the number of the
+ undeftoken remains being 2, it is its user token number which
+ might not be 2).
+ * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
+ `user_token_number_max'.
+ Output `undef_token_number'.
+ * data/bison.simple, data/bison.c++: Use them.
+ Be sure to map invalid yylex return values to
+ `undef_token_number'. This saves us from gratuitous SEGV.
+
+ * tests/conflicts.at (Solved SR Conflicts)
+ (Unresolved SR Conflicts): Adjust.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-08 Akim Demaille <akim@epita.fr>
+
+ * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
+ Adding #line.
+ Remove the duplicate `typedefs'.
+ (RhsNumberType): Fix the declaration and various other typos.
+ Use __ofile__.
+ * data/bison.simple: Use __ofile__.
+ * src/scan-skel.l: Handle __ofile__.
+
+2002-04-08 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (item_number_t): New, the type of item numbers in
+ RITEM. Note that it must be able to code symbol numbers as
+ positive number, and the negation of rule numbers as negative
+ numbers.
+ Adjust all dependencies (pretty many).
+ * src/reduce.c (rule): Remove this `short *' pointer: use
+ item_number_t.
+ * src/system.h (MINSHORT, MAXSHORT): Remove.
+ Include `limits.h'.
+ Adjust dependencies to using SHRT_MAX and SHRT_MIN.
+ (shortcpy): Remove.
+ (MAXTABLE): Move to...
+ * src/output.c (MAXTABLE): here.
+ (prepare_rules): Use output_int_table to output rhs.
+ * data/bison.simple, data/bison.c++: Adjust.
+ * tests/torture.at (Big triangle): Move the limit from 254 to
+ 500.
+ * tests/regression.at (Web2c Actions): Ajust.
+
+ Trying with bigger grammars shows various phenomena: at 3000 (28Mb
+ of grammar file) bison is killed by my system, at 2000 (12Mb) bison
+ passes, but produces negative #line number, once fixed, GCC is
+ killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
+ C), it passes.
+ * src/state.h (state_h): Code input lines on ints, not shorts.
+
+2002-04-08 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (reduce_grammar): First reduce the nonterminals,
+ and then the grammar.
+
+2002-04-08 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: No longer using strndup.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
+ * src/output.c (output_table_data): Return the longest number.
+ (prepare_tokens): Output `token_number_max').
+ * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
+ New.
+ Use them to define yy_token_number_type/TokenNumberType.
+ Use this type for yytranslate.
+ * tests/torture.at (Big triangle): Push the limit from 124 to
+ 253.
+ * tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * tests/torture.at (Big triangle): New.
+ (GNU AWK Grammar, GNU Cim Grammar): Move to...
+ * tests/existing.at: here.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
+ nritems.
+ Adjust dependencies.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c: Normalize increments to prefix form.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c, symtab.c: Remove debugging code.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ Rename all the `bucket's as `symbol_t'.
+
+ * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
+ * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
+ * src/symtab.c, src/symtab.h (bucket): Rename as...
+ (symbol_t): this.
+ (symbol_list_new, bucket_check_defined, bucket_make_alias)
+ (bucket_check_alias_consistence, bucket_pack, bucket_translation)
+ (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
+ (buckets_new, buckets_free, buckets_do): Rename as...
+ (symbol_list_new, symbol_check_defined, symbol_make_alias)
+ (symbol_check_alias_consistence, symbol_pack, symbol_translation)
+ (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
+ (symbols_new, symbols_free, symbols_do): these.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ Use lib/hash for the symbol table.
+
+ * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
+ EOF.
+ * src/lex.c (lex): Set the `number' member of new terminals.
+ * src/reader.c (bucket_check_defined, bucket_make_alias)
+ (bucket_check_alias_consistence, bucket_translation): New.
+ (reader, grammar_free, readgram, token_translations_init)
+ (packsymbols): Adjust.
+ (reader): Number the predefined tokens.
+ * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
+ for predefined tokens.
+ * src/symtab.h (bucket): Remove all the hash table related
+ members.
+ * src/symtab.c (symtab): Replace by...
+ (bucket_table): this.
+ (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
+ (buckets_new, buckets_do): New.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
+ (start_symbol, max_user_token_number, semantic_parser)
+ (error_token_number): Initialize.
+ * src/reader.c (grammar, start_flag, startval, typed, lastprec):
+ Initialize.
+ (reader): Don't.
+ (errtoken, eoftoken, undeftoken, axiom): Extern.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_s): prec and precsym are now pointers
+ to the bucket giving the priority/associativity.
+ Member `associativity' removed: useless.
+ * src/reduce.c, src/conflicts.c: Adjust.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
+ Properly escape the symbols' TAG when outputting them.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h (LA): Is a bitsetv, not bitset*.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h, src/lalr.c (LAruleno): Replace with...
+ (LArule): this, which is an array to rule_t*.
+ * src/print.c, src/conflicts.c: Adjust.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_t): Rename `number' as `user_number'.
+ `number' is a new member.
+ Adjust dependencies.
+ * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ As a result of the previous patch, it is no longer needed
+ to reorder ritem itself.
+
+ * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ Be sure never to walk through RITEMS, but use only data related to
+ the rules themselves. RITEMS should be banished.
+
+ * src/output.c (output_token_translations): Rename as...
+ (prepare_tokens): this.
+ In addition to `translate', prepare the muscles `tname' and
+ `toknum', which were handled by...
+ (output_rule_data): this.
+ Remove, and move the remainder of its outputs into...
+ (prepare_rules): this new routines, which also merges content from
+ (output_gram): this.
+ (prepare_rules): Be sure never to walk through RITEMS.
+ (output_stos): Rename as...
+ (prepare_stos): this.
+ (output): Always invoke prepare_states, after all, just don't use it
+ in the output if you don't need it.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (new_state): Display `nstates' as the name of the
+ newly created state.
+ Adjust to initialize first_state and last_state if needed.
+ Be sure to distinguish the initial from the final state.
+ (new_states): Create the itemset of the initial state, and use
+ new_state.
+ * src/closure.c (closure): Now that the initial state has its
+ items properly set, there is no need for a special case when
+ creating `ruleset'.
+
+ As a result, now the rule 0, reducing to $axiom, is visible in the
+ outputs. Adjust the test suite.
+
+ * tests/conflicts.at (Solved SR Conflicts)
+ (Unresolved SR Conflicts): Adjust.
+ * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
+ * tests/conflicts.at (S/R in initial): New.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
+ the RHS of the rules.
+ * src/output.c (output_gram): Likewise.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
+ bucket.
+ Adjust all dependencies.
+ * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
+ `number' of the buckets too.
+ * src/gram.h: Include `symtab.h'.
+ (associativity): Move to...
+ * src/symtab.h: here.
+ No longer include `gram.h'.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (rules_rhs_length): New.
+ (ritem_longest_rhs): Use it.
+ * src/gram.h (rule_t): `number' is a new member.
+ * src/reader.c (packgram): Set it.
+ * src/reduce.c (reduce_grammar_tables): Move the useless rules at
+ the end of `rules', and count them out of `nrules'.
+ (reduce_output, dump_grammar): Adjust.
+ * src/print.c (print_grammar): It is no longer needed to check for
+ the usefulness of a rule, as useless rules are beyond `nrules + 1'.
+ * tests/reduce.at (Reduced Automaton): New test.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
+ lacking `+ 1' to nrules, Bison reported as useless a token if it
+ was used solely to set the precedence of the last rule...
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * data/bison.c++, data/bison.simple: Don't output the current file
+ name in #line, to avoid useless diffs between two identical
+ outputs under different names.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
+ Normalize loops to using `< nrules + 1', not `<= nrules'.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * TODO: Update.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
+ bucket.value as bucket.number.
+
+2002-04-07 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
+ * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
+ * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
+ RHS, instead of being an index in RITEMS.
+
+2002-04-04 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo: Update copyright date.
+ (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
+ (Symbols): Warn about running Bison in one character set,
+ but compiling and/or running in an incompatible one.
+ Warn about character code 256, too.
+
+2002-04-03 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.data (YYSTACK_ALLOC): Depend on whether
+ YYERROR_VERBOSE is nonzero, not whether it is defined.
+
+ Merge changes from bison-1_29-branch.
+
+2002-03-20 Paul Eggert <eggert@twinsun.com>
+
+ Merge fixes from Debian bison_1.34-1.diff.
+
+ * configure.in (AC_PREREQ): 2.53.
+
+2002-03-20 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (log_resolution): Argument `resolution' is const.
+
+2002-03-19 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (YYCOPY): New macro.
+ (YYSTACK_RELOCATE): Use it.
+ Remove Type arg; no longer needed. All callers changed.
+ (yymemcpy): Remove; no longer needed.
+
+ * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
+ * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-03-19 Akim Demaille <akim@epita.fr>
+
+ Test and fix the #line outputs.
+
+ * tests/atlocal.at (GCC): New.
+ * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
+ (Prologue synch line, %union synch line, Postprologue synch line)
+ (Action synch line, Epilogue synch line): New tests.
+ * src/reader.c (parse_union_decl): Define the muscle stype_line.
+ * data/bison.simple, data/bison.c++: Use it.
+
+2002-03-19 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
+ (Solved SR Conflicts, %expect not enough, %expect right)
+ (%expect too much): Move to...
+ * tests/conflicts.at: this new file.
+
+2002-03-19 Akim Demaille <akim@epita.fr>
+
+ * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
+ * data/bison.simple, data/bison.c++: Handle the `#define' part, so
+ that we can move to enums for instance.
+ * src/output.c (token_definitions_output): Output a list of
+ `token-name, token-number' instead of the #define.
+ (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
+
+2002-03-14 Akim Demaille <akim@epita.fr>
+
+ Use Gettext 0.11.1.
+
+2002-03-09 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Make the user able to add members to the generated
+ parser by subclassing.
+
+2002-03-05 Robert Anisko <robert@lrde.epita.fr>
+
+ * src/reader.c (read_additionnal_code): `c' should be an integer, not
+ a character.
+ Reported by Nicolas Tisserand and Nicolas Burrus.
+
+2002-03-04 Robert Anisko <robert@lrde.epita.fr>
+
+ * src/reader.c: Warn about lacking semi-colons, do not complain.
+
+2002-03-04 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Remove a debug line.
+
+2002-03-04 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Unmerge value as yylval and value as yyval. Unmerge
+ location as yylloc and location as yyloc. Use YYLLOC_DEFAULT, and
+ provide a default implementation.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
+ * tests/output.at (AT_CHECK_OUTPUT): Likewise.
+ * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
+ * tests/semantic.at (Parsing Guards): Similarly.
+ * src/reader.at (readgram): Complain if the last rule is not ended
+ with a semi-colon.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
+ * src/closure.c: here.
+ (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
+ RTC.
+ * src/warshall.h, src/warshall.c: Remove.
+ * tests/sets.at (Broken Closure): Adjust.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_skeleton): tempdir is const.
+ bytes_read is unused.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
+ * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
+ Update.
+ From Michael Hayes.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (closure): `r' is unused.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * tests/sets.at (Broken Closure): Add the ending `;'.
+ * src/reader.at (readgram): Complain if a rule is not ended with a
+ semi-colon.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
+ (count_sr_conflicts): Use bitset_count.
+ * src/reduce.c (inaccessable_symbols): Ditto.
+ (bits_size): Remove.
+ * src/warshall.h, src/warshall.c: Convert to bitsetv.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
+ * src/reduce.c: Remove the `bitset_zero's following the
+ `bitset_create's, as now it is performed by the latter.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
+ * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
+ * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
+ latest sources from Michael.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output): Don't free the grammar.
+ * src/reader.c (grammar_free): New.
+ * src/main.c (main): Call it and don't free symtab here.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
+ before returning.
+ Reported by Benoit Perrot.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ Use bitset operations when possible, not loops over bits.
+
+ * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
+ bitset_or.
+ * src/print.c (print_reductions): Use bitset_and, bitset_andn.
+ * src/reduce.c (useless_nonterminals): Formatting changes.
+ * src/warshall.c (TC): Use bitset_or.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
+ * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
+ Ditto.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (F): Now a bitset*.
+ Adjust all dependencies.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (shiftset, lookaheadset): Now bitset.
+ Adjust all dependencies.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/L0.c, src/LR0.h (nstates): Be size_t.
+ Adjust comparisons (signed vs unsigned).
+ * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
+ bitset*.
+ Adjust all dependencies.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (firsts): Now, also a bitset.
+ Adjust all dependencies.
+ (varsetsize): Remove, now unused.
+ * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/print.c: Convert to use bitset.h, not hand coded iterations
+ over ints.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (ruleset): Be a bitset.
+ (rulesetsize): Remove.
+
+2002-03-04 Akim Demaille <akim@epita.fr>
+
+ * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
+ * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
+ * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
+ * src/closure.c (fderives): Be an array of bitsets.
+
+2002-02-28 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Merge the two generated headers. Insert a copyright
+ notice in each output file.
+
+2002-02-28 Akim Demaille <akim@epita.fr>
+
+ * data/bison.c++: Copy the prologue of bison.simple to fetch
+ useful M4 definitions, such as b4_header_guard.
+
+2002-02-25 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (version): Give the name of the authors, and use a
+ translator friendly scheme for the bgr
+ copyright notice.
+
+2002-02-25 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (header_output): Remove, now handled completely via
+ M4.
+
+2002-02-25 Akim Demaille <akim@epita.fr>
+
+ * m4/m4.m4: New, from CVS Autoconf.
+ * configure.in: Invoke it.
+ * src/output.c (output_skeleton): Use its result instead of the
+ hard coded name.
+
+2002-02-25 Akim Demaille <akim@epita.fr>
+
+ * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
+ Fileutils 4.1.5.
+ * configure.in: Invoke UTILS_FUNC_MKSTEMP.
+ * src/output.c (output_skeleton): Use mkstemp to create a real
+ temporary file.
+ Move the filling of `skeleton' and its muscle to...
+ (prepare): here.
+ (output): Move the definition of the prologue muscle to...
+ (prepare): here.
+ * src/system.h (DEFAULT_TMPDIR): New.
+
+2002-02-14 Paul Eggert <eggert@twinsun.com>
+
+ Remove the support for C++ namespace cleanliness; it was
+ causing more problems than it was curing, since it didn't work
+ properly on some nonstandard C++ compilers. This can wait
+ for a proper C++ parser.
+
+ * NEWS: Document this.
+ * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
+ of C++, as it's treated like C now.
+ * src/bison.simple (YYSTD): Remove.
+ (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
+ Treat C++ just like Standard C instead of trying to support
+ namespace cleanliness.
+
+2002-02-14 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (else): Adjust to Andreas' change.
+
+2002-02-14 Akim Demaille <akim@epita.fr>
+
+ * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
+
+2002-02-13 Andreas Schwab <schwab@suse.de>
+
+ * src/output.c (output_rule_data): Don't output NULL, it might
+ not be defined yet.
+
+2002-02-11 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
+ (Copyright notice): Update.
+
+2002-02-11 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (%nonassoc and eof): Don't include
+ nonportable headers.
+
+2002-02-08 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Correct error recovery. Make the user able to
+ initialize the starting location.
+
+2002-02-07 Akim Demaille <akim@epita.fr>
+
+ * tests/input.at: New.
+
+2002-02-07 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Replace some direct m4 expansions by constants. Be
+ more consistent when naming methods and variables. Put preprocessor
+ directives around tables only needed for debugging.
+
+2002-02-07 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
+ C++ parsers.
+ (yy::b4_name::parse): Use print_.
+
+2002-02-07 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
+
+2002-02-07 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
+ C++ parsers.
+ (yy::b4_name::parse): Build verbose error messages, and use error_.
+
+2002-02-06 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Fix m4 quoting in comments.
+
+2002-02-06 Robert Anisko <robert@lrde.epita.fr>
+
+ * data/bison.c++: Adjust the parser code. Fix some muscles that were
+ not expanded by m4.
+
+2002-02-05 Akim Demaille <akim@epita.fr>
+
+ * data/bison.c++: Adjust to the M4 back end.
+ More is certainly needed.
+
+2002-02-05 Akim Demaille <akim@epita.fr>
+
+ Give a try to M4 as a back end.
+
+ * lib/readpipe.c: New, from wdiff.
+ * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
+ BISON_HAIRY.
+ * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
+ specific values. Now it is m4 that performs the lookup.
+ * src/parse-skel.y: Remove.
+ * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
+ * src/output.c (actions_output, guards_output)
+ (token_definitions_output): No longer keeps track of the output
+ line number, hence remove the second argument.
+ (guards_output): Check against the guard member of a rule, not the
+ action member.
+ Adjust callers.
+ (output_skeleton): Don't look for the skeleton location, let m4 do
+ that.
+ Create `/tmp/muscles.m4'. This is temporary, a proper temporary
+ file will be used.
+ Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
+ (prepare): Given that for the time being changesyntax is not
+ usable in M4, rename the muscles using `-' to `_'.
+ Define `defines_flag', `output_parser_name' and `output_header_name'.
+ * src/output.h (actions_output, guards_output)
+ (token_definitions_output): Adjust prototypes.
+ * src/scan-skel.l: Instead of scanning the skeletons, it now
+ processes the output of m4: `__oline__' and `#output'.
+ * data/bison.simple: Adjust to be used by M4(sugar).
+ * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
+ to date.
+ * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
+ instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
+ * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
+ shamelessly stolen from CVS Autoconf.
+
+2002-02-05 Akim Demaille <akim@epita.fr>
+
+ * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
+ * configure.in: Check for the declarations of free and malloc.
+ * src/muscle_tab.c: Adjust.
+
+2002-02-05 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
+ which have no values.
+
+2002-02-05 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
+ * data/: here.
+
+2002-01-29 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (YYSIZE_T): Do not define merely because
+ YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
+ On some platforms, <alloca.h> does not declare YYSTD (size_t).
+
+2002-01-27 Akim Demaille <akim@epita.fr>
+
+ Fix `%nonassoc and eof'.
+
+ * src/state.c (errs_dup): Aaaah! The failure was due to bytes
+ which were not properly copied! Replace
+ memcpy (res->errs, src->errs, src->nerrs);
+ with
+ memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
+ !!!
+ * tests/regression.at (%nonassoc and eof): Adjust to newest
+ Autotest: `.' is not in the PATH.
+
+2002-01-27 Akim Demaille <akim@epita.fr>
+
+ * tests/sets.at (AT_EXTRACT_SETS): New.
+ (Nullable): Use it.
+ (Firsts): New.
+
+2002-01-26 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at, tests/calc.at, tests/headers.at,
+ * tests/torture.at: Adjust to the newest Autotest which no longer
+ forces `.' in the PATH.
+
+2002-01-25 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (%nonassoc and eof): New.
+ Suggested by Robert Anisko.
+
+2002-01-24 Akim Demaille <akim@epita.fr>
+
+ Bison dumps core when trying to complain about broken input files.
+ Reported by Cris van Pelt.
+
+ * src/lex.c (parse_percent_token): Be sure to set token_buffer.
+ * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
+ into...
+ (Invalid inputs): Strengthen: exercise parse_percent_token.
+
+2002-01-24 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/Makefile.am: Add bison.c++.
+ * src/bison.c++: New skeleton.
+
+2002-01-21 Paolo Bonzini <bonzini@gnu.org>
+
+ * po/it.po: New.
+
+2002-01-21 Kees Zeelenberg <kzlg@users.sourceforge.net>
+
+ * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
+
+2002-01-20 Marc Autret <marc@gnu.org>
+
+ * src/files.c (compute_output_file_names): Fix
+
+2002-01-20 Marc Autret <marc@gnu.org>
+
+ * tests/output.at: New test.
+ * src/files.c (compute_base_names): Don't map extensions when
+ the YACC flag is set, use defaults.
+ Reported by Evgeny Stambulchik.
+
+2002-01-20 Marc Autret <marc@gnu.org>
+
+ * src/system.h: Need to define __attribute__ away for non-GCC
+ compilers as well (i.e., the vendor C compiler).
+ Suggested by Albert Chin-A-Young.
+
+2002-01-11 Tim Van Holder <tim.van.holder@pandora.be>
+
+ * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
+ canonical definition.
+ * src/system.h: Use the canonical definition for PARAMS (avoids
+ a conflict with the macro from lib/hash.h).
+
+2002-01-11 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Use AC_FUNC_STRNLEN.
+ Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
+
+2002-01-09 Akim Demaille <akim@epita.fr>
+
+ * src/files.c, src/files.h (output_infix): New.
+ (tab_extension): Remove.
+ (compute_base_names): Compute the former, drop the latter.
+ * src/output.c (prepare): Insert the muscles `output-infix', and
+ `output-suffix'.
+ * src/parse-skel.y (string, string.1): New.
+ (section.header): Use it.
+ (section.yacc): Remove.
+ (prefix): Remove too.
+ * src/scan-skel.l: Adjust.
+ * src/bison.simple, src/bison.hairy: Adjust.
+
+2002-01-09 Akim Demaille <akim@epita.fr>
+
+ * configure.in (WERROR_CFLAGS): Compute it.
+ * src/Makefile.am (CFLAGS): Pass it.
+ * tests/atlocal.in (CFLAGS): Idem.
+ * src/files.c: Fix a few warnings.
+ (get_extension_index): Remove, unused.
+
+2002-01-08 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (AS_FILE_NAME): New.
+ (getargs): Use it to convert DOSish file names.
+ * src/files.c (base_name): Rename as full_base_name to avoid
+ clashes with `base_name ()'.
+ (filename_split): New.
+ (compute_base_names): N-th rewrite, using filename_split.
+
+2002-01-08 Akim Demaille <akim@epita.fr>
+
+ * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
+ New, stolen from the Fileutils 4.1.
+ * lib/Makefile.am (libbison_a_SOURCES): Adjust.
+ * configure.in: Check for the presence of memrchr, and of its
+ prototype.
+
+2002-01-07 Tim Van Holder <tim.van.holder@pandora.be>
+
+ * lib/hash.h (__P): Added definition for this macro.
+ * src/Makefile.am: Add parse-skel.c and scan-skel.c to
+ BUILT_SOURCES, to ensure they are generated first.
+ * src/parse-skel.y: Use YYERROR_VERBOSE instead of
+ %error-verbose to allow bootstrapping with bison 1.30x.
+
+2002-01-06 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_braces): Don't fetch the next char, the
+ convention is to fetch on entry.
+ * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
+ 'switch' without a following semicolon.
+ * tests/regression.at (braces parsing): New.
+
+2002-01-06 Akim Demaille <akim@epita.fr>
+
+ Bison is dead wrong in its RR conflict reports.
+
+ * tests/torture.at (GNU Cim Grammar): New.
+ * src/conflicts.c (count_rr_conflicts): Fix.
+
+2002-01-06 Akim Demaille <akim@epita.fr>
+
+ Creating package.m4 from configure.ac causes too many problems.
+
+ * tests/Makefile.am (package.m4): Create it by hand,
+ AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
+
+2002-01-06 Akim Demaille <akim@epita.fr>
+
+ * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
+ skeleton.h.
+
+2002-01-04 Paul Eggert <eggert@twinsun.com>
+
+ * doc/bison.texinfo (Debugging):
+ Remove YYSTDERR; it's no longer defined or used.
+ Also, s/cstdio.h/cstdio/.
+
+2002-01-03 Akim Demaille <akim@epita.fr>
+
+ * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
+
+2002-01-03 Akim Demaille <akim@epita.fr>
+
+ * src/parse-skel.y (process_skeleton): Don't bind the parser's
+ tracing code to --trace, wait for a better --trace option, with
+ args.
+
+2002-01-03 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
+ The ISO C++ standard is extremely clear about it: stderr is
+ considered a macro, not a regular symbol (see table 94 `Header
+ <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
+ Therefore std:: does not apply to it. It still does with fprintf.
+ Also, s/cstdio.h/cstdio/.
+
+2002-01-03 Akim Demaille <akim@epita.fr>
+
+ * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
+ for non system headers.
+
+2002-01-02 Akim Demaille <akim@epita.fr>
+
+ Equip the skeleton chain with location tracking, runtime trace,
+ pure parser and scanner.
+
+ * src/parse-skel.y: Request a pure parser, locations, and prefix
+ renaming.
+ (%union): Having several members with the same type does not help
+ type mismatches, simplify.
+ (YYPRINT, yyprint): New.
+ (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
+ (skel_error): this.
+ Handle locations.
+ * src/scan-skel.l: Adjust to these changes.
+ * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
+ (LOCATION_PRINT, skel_control_t): New.
+
+2001-12-30 Akim Demaille <akim@epita.fr>
+
+ * src/parse-skel.y: Get rid of the shift/reduce conflict:
+ replace `gb' with BLANKS.
+ * src/scan-skel.l: Adjust.
+
+2001-12-30 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: We don't need nor want bcopy.
+ Throw away MS-DOS crap: we don't need getpid.
+ * configure.in: We don't need strndup. It was even causing
+ problems: because Flex includes the headers *before* us,
+ _GNU_SOURCE is not defined by config.h, and therefore strndup was
+ not visible.
+ * lib/xstrndup.c: New.
+ * src/scan-skel.l: Use it.
+ Be sure to initialize yylval.muscle member when scanning a MUSCLE.
+ * src/parse-skel.y: Use %directives instead of #defines.
+
+2001-12-30 Akim Demaille <akim@epita.fr>
+
+ * src/skeleton.h: New.
+ * src/output.c (output_parser, output_master_parser): Remove, dead
+ code.
+ * src/output.h (get_lines_number, actions_output, guards_output)
+ (token_definitions_output): Prototype them.
+ * src/parse-skel.y: Add the license notice.
+ Include output.h and skeleton.h.
+ (process_skeleton): Returns void, and takes a single parameter.
+ * src/scan-skel.l: Add the license notice.
+ Include skeleton.h.
+ Don't use %option yylineno: it seems that then Flex imagines
+ REJECT has been used, and therefore it won't reallocate its
+ buffers (which makes no other sense to me than a bug). It results
+ in warnings for `unused: yy_flex_realloc'.
+
+2001-12-30 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+ (MUSCLE_INSERT_PREFIX): ...to there.
+ * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+ (MUSCLE_INSERT_PREFIX): Move from here...
+
+ * src/bison.hairy: Add a section directive. Put braces around muscle
+ names. This parser skeleton is still broken, but Bison should not
+ choke on a bad muscle 'syntax'.
+ * src/bison.simple: Add a section directive. Put braces around muscle
+ names.
+
+ * src/files.h (strsuffix, stringappend): Add declarations.
+ (tab_extension): Add declaration.
+ (short_base_name): Add declaration.
+
+ * src/files.c (strsuffix, stringappend): No longer static. These
+ functions are used in the skeleton parser.
+ (tab_extension): New.
+ (compute_base_names): Use the computations done in this function
+ to guess if the generated parsers should have '.tab' in their
+ names.
+ (short_base_name): No longer static.
+
+ * src/output.c (output_skeleton): New.
+ (output): Disable call to output_master_parser, and give a try to
+ a new skeleton handling system.
+ (guards_output, actions_output): No longer static.
+ (token_definitions_output, get_lines_number): No longer static.
+
+ * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
+
+ * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
+ parse-skel.y.
+
+ * src/parse-skel.y: New file.
+ * src/scan-skel.l: New file.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ %name-prefix is broken.
+
+ * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
+ Adjust all dependencies.
+ * tests/headers.at (export YYLTYPE): Strengthen this test: use
+ %name-prefix.
+
+ Renaming yylval but not yylloc is not consistent. Now we do.
+
+ * src/bison.simple: Prefix yylloc if used.
+ * doc/bison.texinfo (Decl Summary): Document that.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Promote `%long-directive' over
+ `%long_directive'.
+ Remove all references to fixed-output-files, yacc is enough.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
+ user prologue. These are defaults.
+ * tests/actions.at (Mid-rule actions): Make sure the user can
+ define YYDEBUG and YYERROR_VERBOSE.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (header_output): Don't forget to export YYLTYPE and
+ yylloc.
+ * tests/headers.at (export YYLTYPE): New, make sure it does.
+ * tests/regression.at (%union and --defines, Invalid CPP headers):
+ Move to...
+ * tests/headers.at: here.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * tests/actions.at (Mid-rule actions): Output on a single line
+ instead of several.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Formatting changes.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ Don't store the token defs in a muscle, just be ready to output it
+ on command. Now possible via `symbols'. Fixes a memory leak.
+
+ * src/output.c (token_definitions_output): New.
+ (output_parser, header_output): Use it.
+ * src/reader.c (symbols_save): Remove.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple: Do not provide a default for YYSTYPE and
+ YYLTYPE before the user's prologue. Otherwise it's hardly... a
+ default.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ Mid-rule actions are simply... ignored!
+
+ * src/reader.c (readgram): Be sure to attach mid-rule actions to
+ the empty-rule associated to the dummy symbol, not to the host
+ rule.
+ * tests/actions.at (Mid-rule actions): New.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ Memory leak.
+
+ * src/reader.c (reader): Free grammar.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ Memory leak.
+
+ * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
+ since it allocates it for each state, although only one is needed.
+ (allocate_storage): Do it here.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/options.h, src/options.c (create_long_option_table): Rename
+ as...
+ (long_option_table_new): this, with a clearer prototype.
+ (percent_table): Remove, unused,
+ * src/getargs.c (getargs): Adjust.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
+ * src/print.c, src/print_graph.c, src/state.h: Rename state_table
+ as states.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (build_relations): Rename `states' as `states1'.
+ Sorry, I don't understand exactly what it is, no better name...
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
+ * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
+ * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
+ as rules.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
+ ago.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c, src/reader.h (user_toknums): Remove.
+ Adjust all users to use symbols[i]->user_token_number.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/gram.c, src/gram.h (sprec, sassoc): Remove.
+ Adjust all users to use symbols[i]->prec or ->assoc.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c, src/reader.h (tags): Remove.
+ Adjust all users to use symbols[i]->tag.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h, src/gram.c (symbols): New, similar to state_table
+ and rule_table.
+ * src/reader.c (packsymbols): Fill this table.
+ Drop sprec.
+ * src/conflicts.c (resolve_sr_conflict): Adjust.
+ * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
+ single table.
+ Use symbols[i]->tag instead of tags[i].
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
+ In addition, put a comment in there, to replace...
+ * tests/regression.at (%union and C comments): Remove.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Web2c Actions): Blindly move the actual
+ output as expected output. The contents *seem* right to me, but I
+ can't pretend reading perfectly parser tables... Nonetheless, all
+ the other tests pass correctly, the table look OK, even though the
+ presence of `$axiom' is to be noted: AFAICS it is useless (but
+ harmless).
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (readgram): Don't add the rule 0 if there were no
+ rules read. In other words, add it _after_ having performed
+ grammar sanity checks.
+ Fixes the `tests/regression.at (Invalid input: 1)' Failure.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
+ visible, and some states have now a different number.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (readgram): Bind the initial rule's lineno to that
+ of the first rule.
+ * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
+ (Solved SR Conflicts): Adjust rule 0's line number.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ Fix the `GAWK Grammar' failure.
+
+ * src/LR0.c (final_state): Initialize to -1 so that we do compute
+ the reductions of the first state which was mistakenly confused
+ with the final state because precisely final_state was initialized
+ to 0.
+ * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
+ now noticed by Bison.
+ * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
+ have a reduction on $default.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
+ rule line numbers.
+ * src/closure.c (print_closure): Likewise.
+ * src/derives.c (print_derives): Likewise.
+ * tests/sets.at (Nullable): Adjust: the rule numbers are correct
+ now.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (lookaheads_print): New.
+ (lalr): Call it when --trace-flag.
+ * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
+ are dumped.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
+ when walking through ritem, even via rule->rhs.
+ * src/reduce.c (dump_grammar, useful_production, reduce_output)
+ (useful_production, useless_nonterminals): Likewise.
+ (reduce_grammar_tables): Likewise, plus update nritems.
+ * src/nullable.c (set_nullable): Likewise.
+ * src/lalr.c (build_relations): Likewise.
+ * tests/sets.at (Nullable): Adjust.
+ Fortunately, now, the $axiom is no longer nullable.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (generate_states): Use nritems, not nitems, nor using
+ the 0-sentinel.
+ * src/gram.c (ritem_longest_rhs): Likewise.
+ * src/reduce.c (nonterminals_reduce): Likewise.
+ * src/print_graph.c (print_graph): Likewise.
+ * src/output.c (output_rule_data): Likewise.
+ * src/nullable.c (set_nullable): Likewise.
+
+2001-12-29 Akim Demaille <akim@epita.fr>
+
+ * src/output.c: Comment changes.
+
+2001-12-27 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
+ cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
+ Sparc, as they were causing more porting problems than the
+ (minor) performance improvement was worth.
+
+ Also, catch up with 1.31's YYSTD.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_gram): Rely on nritems, not the
+ 0-sentinel. See below.
+ Use -1 as separator, not 0.
+ * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
+ Rely on -1 as separator in yyrhs, instead of 0.
+ * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
+ twice `Now at end of input', therefore there are two lines less to
+ expect.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Unresolved SR Conflicts):
+ (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
+ below.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (new_state): Recognize the final state by the fact it
+ is reached by eoftoken.
+ (insert_start_shifting_state, insert_eof_shifting_state)
+ (insert_accepting_state, augment_automaton): Remove, since now
+ these states are automatically computed from the initial state.
+ (generate_states): Adjust.
+ * src/print.c: When reporting a rule number to the user, substract
+ 1, so that the axiom rule is rule 0, and the first user rule is 1.
+ * src/reduce.c: Likewise.
+ * src/print_graph.c (print_core): For the time being, just as for
+ the report, depend upon --trace-flags to dump the full set of
+ items.
+ * src/reader.c (readgram): Once the grammar read, insert the rule
+ 0: `$axiom: START-SYMBOL $'.
+ * tests/set.at: Adjust: rule 0 is now displayed, and since the
+ number of the states has changed (the final state is no longer
+ necessarily the last), catch up.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ Try to make the use of the eoftoken valid. Given that its value
+ is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
+ is used instead of > 0 where appropriate, (ii), depend upon nritems
+ instead of the 0-sentinel.
+
+ * src/gram.h, src/gram.c (nritems): New.
+ Expected to be duplication of nitems, but for the time being...
+ * src/reader.c (packgram): Assert nritems and nitems are equal.
+ * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
+ * src/closure.c (print_closure, print_fderives): Likewise.
+ * src/gram.c (ritem_print): Likewise.
+ * src/print.c (print_core, print_grammar): Likewise.
+ * src/print_graph.c: Likewise.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/main.c (main): If there are complains after grammar
+ reductions, then output the report anyway if requested, then die.
+ * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
+ * src/reader.c (eoftoken): New.
+ (parse_token_decl): If the token being defined has value `0', it
+ is the eoftoken.
+ (packsymbols): No longer hack `tags' to insert `$' by hand.
+ Be sure to preserve the value of the eoftoken.
+ (reader): Make sure eoftoken is defined.
+ Initialize nsyms to 0: now eoftoken is created just like the others.
+ * src/print.c (print_grammar): Don't special case the eof token.
+ * src/regression.at: Adjust: `$' has value 0, not -1, which was a
+ lie anyway, albeit pleasant.
+ * tests/calc.at: Exercise error messages with eoftoken.
+ Change the grammar so that empty input is invalid.
+ Adjust expectations.
+ When yyungeting, be sure to use a valid yylloc: use last_yylloc.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Check the protos of strchr ans strspn.
+ Replace strchr if needed.
+ * src/system.h: Provide the protos of strchr, strspn and memchr if
+ missing.
+ * lib/strchr.c: New.
+ * src/reader.c (symbols_save): Use strchr.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/print.c, src/print_graph.c (escape): New.
+ Use it to quote the TAGS outputs.
+ * src/print_graph.c (print_state): Now errors are in red, and
+ reductions in green.
+ Prefer high to wide: output the state number on a line of its own.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (reductions_new): New.
+ * src/LR0.c (set_state_table): Let all the states have a
+ `reductions', even if reduced to 0.
+ (save_reductions): Adjust.
+ * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
+ * src/print.c (print_reductions, print_actions): Adjust.
+ * src/output.c (action_row): Adjust.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/state.h, src/state.c (errs_new, errs_dup): New.
+ * src/LR0.c (set_state_table): Let all the states have an errs,
+ even if reduced to 0.
+ * src/print.c (print_errs, print_reductions): Adjust.
+ * src/output.c (output_actions, action_row): Adjust.
+ * src/conflicts.c (resolve_sr_conflict): Adjust.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
+ * src/print.c: here.
+ (lookaheadset, shiftset): New, used as additional storage by
+ print_reductions.
+ (print_results): Adjust.
+ (print_shifts, print_gotos, print_errs): New, extracted from...
+ (print_actions): here.
+ * src/print_graph.c (print_actions): Remove dead code.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
+ `$n' and `@n'.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
+ (build_relations): Adjust.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (set_goto_map): Remove a wrong but benign loop
+ duplication.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (packgram): Catch nitems overflows.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/files.c, src/files.h (guard_obstack): Remove.
+ * src/output.c (output): Adjust.
+ * src/reader.c (parse_braces): New, factoring...
+ (copy_action, copy_guard): these two which are renamed as...
+ (parse_action, parse_guard): these.
+ As a voluntary consequence, using braces around guards is now
+ mandatory.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_t): `guard' and `guard_line' are new members.
+ * src/reader.c (symbol_list): `guard' and `guard_line' are new
+ members.
+ (symbol_list_new): Adjust.
+ (copy_action): action_line is the first line, not the last.
+ (copy_guard): Just as for actions, store the `action' only, not
+ the switch/case/break flesh.
+ Don't parse the user action that might follow the guard, let...
+ (readgram): do it, i.e., now, there can be an action after a
+ guard.
+ In other words the guard is just explicitly optional.
+ (packgram): Adjust.
+ * src/output.c (guards_output): New.
+ (output_parser): Call it when needed.
+ (output): Also free the guard and attrs obstacks.
+ * src/files.c, src/files.h (obstack_save): Remove.
+ (output_files): Remove.
+ As a result, if one needs the former `.act' file, using an
+ appropriate skeleton which requires actions and guards is now
+ required.
+ * src/main.c (main): Adjust.
+ * tests/semantic.at: New.
+ * tests/regression.at: Use `input.y' as input file name.
+ Avoid 8+3 problems by requiring input.c when the test needs the
+ parser.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (symbol_list_new): Be sure to initialize all the
+ fields.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ All the hacks using a final pseudo state are now useless.
+
+ * src/LR0.c (set_state_table): state_table holds exactly nstates.
+ * src/lalr.c (nLA): New.
+ (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
+ instead of lookaheadsp from the pseudo state (nstate + 1).
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (action_row, token_actions): Use a state_t instead
+ of a integer, and nlookaheads instead of the following state's
+ lookaheadsp.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (log_resolution, flush_shift)
+ (resolve_sr_conflict, set_conflicts, solve_conflicts)
+ (count_sr_conflicts, count_rr_conflicts, conflicts_output)
+ (conflicts_print, print_reductions): Use a state_t instead of an
+ integer when referring to a state.
+ As much as possible, depend upon nlookaheads, instead of the
+ `lookaheadsp' member of the following state (since lookaheads of
+ successive states are successive, the difference between state n + 1
+ and n served as the number of lookaheads for state n).
+ * src/lalr.c (add_lookback_edge): Likewise.
+ * src/print.c (print_core, print_actions, print_state)
+ (print_results): Likewise.
+ * src/print_graph.c (print_core, print_actions, print_state)
+ (print_graph): Likewise.
+ * src/conflicts.h: Adjust.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/bison.hairy: Formatting/comment changes.
+ ANSIfy.
+ Remove `register' indications.
+ Add plenty of `static'.
+
+2001-12-27 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (prepare): Drop the muscle `ntbase' which
+ duplicates ntokens.
+ * src/bison.simple: Formatting/comment changes.
+ Use YYNTOKENS only, which is documented, but not YYNTBASE, which
+ is an undocumented synonym.
+
+2001-12-22 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_table_data): Change the prototype to use
+ `int' for array ranges: some invocations do pass an int, not a
+ short.
+ Reported by Wayne Green.
+
+2001-12-22 Akim Demaille <akim@epita.fr>
+
+ Some actions of web2c.y are improperly triggered.
+ Reported by Mike Castle.
+
+ * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
+ * tests/regression.at (Web2c): Rename as...
+ (Web2c Report): this.
+ (Web2c Actions): New.
+
+2001-12-22 Akim Demaille <akim@epita.fr>
+
+ Reductions in web2c.y are improperly reported.
+ Reported by Mike Castle.
+
+ * src/conflicts.c (print_reductions): Fix.
+ * tests/regression.at (Web2c): New.
+
+2001-12-18 Akim Demaille <akim@epita.fr>
+
+ Some host fail on `assert (!"foo")', which expands to
+ ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
+ Reported by Nelson Beebee.
+
+ * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
+ `#define it_succeeded 0' and `assert (it_succeeded)'.
+
+2001-12-17 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple: Don't hard code the skeleton line and filename.
+ * src/output.c (output_parser): Rename 'line' as 'output_line'.
+ New line counter 'skeleton_line' (skeleton-line muscle).
+
+2001-12-17 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
+ YYDEBUG must be defined to a nonzero value.
+
+ * src/bison.simple (yytname): Do not assume that the user defines
+ YYDEBUG to a properly parenthesized expression.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (state_t): Rename lookaheads as lookaheadsp.
+ nlookaheads is a new member.
+ Adjust all users.
+ * src/lalr.h (nlookaheads): Remove this orphan declaration.
+ * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
+ state.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/files.h, src/files.c (open_files, close_files): Remove.
+ * src/main.c (main): Don't open/close files, nor invoke lex_free,
+ let...
+ * src/reader.c (reader): Do it.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (print_reductions): Formatting changes.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (flush_shift): Also adjust lookaheadset.
+ (flush_reduce): New.
+ (resolve_sr_conflict): Adjust.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_obstack): Be static and rename as...
+ (format_obstack): this, to avoid any confusion with files.c's
+ output_obstack.
+ * src/reader.h (muscle_obstack): Move to...
+ * src/output.h: here, since it's defined in output.c.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (action_row, save_column, default_goto)
+ (sort_actions, matching_state, pack_vector): Better variable
+ locality.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/output.c: Various formatting changes.
+
+2001-12-17 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (output_files): Free the output_obstack.
+ * src/main.c (main): Call print and print_graph conditionally.
+ * src/print.c (print): Work unconditionally.
+ * src/print_graph.c (print_graph): Work unconditionally.
+ * src/conflicts.c (log_resolution): Output only if verbose_flag.
+
+2001-12-16 Marc Autret <autret_m@epita.fr>
+
+ * src/output.c (actions_output): Fix. When we use %no-lines,
+ there is one less line per action.
+
+2001-12-16 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple: Remove a useless #line directive.
+ s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
+ * src/output.c (get_lines_number): New.
+ (output_parser): Adjust, now takes care about the lines of a
+ output muscles.
+ Fix line numbering.
+ (actions_output): Computes the number of lines taken by actions.
+ (output_master_parser): Insert new skeleton which is the name of
+ the output parser file name.
+
+2001-12-15 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
+
+2001-12-15 Marc Autret <autret_m@epita.fr>
+
+ * src/output.c (output_gram): Keep track of the hairy one.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ Make `make distcheck' work.
+
+ * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
+ system.h which uses libgettext.h.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ * src/nullable.c (set_nullable): Useless rules must be skipped,
+ otherwise, since we range over their symbols, we might look at a
+ nonterminal which no longer ``exists'', i.e., it is not counted in
+ `nvars', hence we overflow our arrays.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ The header can also be produced directly, without any obstack!
+ Yahoo!
+
+ * src/files.c, src/files.h (defines_obstack): Remove.
+ (compute_header_macro): Global.
+ (defines_obstack_save): Remove.
+ * src/reader.c (parse_union_decl): No longer output to
+ defines_obstack: its content can be found in the `stype' muscle
+ anyway.
+ (output_token_translations): Merge into...
+ (symbols_output): this.
+ Rename as...
+ (symbols_save): this.
+ (reader): Adjust.
+ * src/output.c (header_output): New.
+ (output): Call it.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_union_decl): Instead of handling two obstack
+ simultaneously, use one to define the `stype' muscle, and use the
+ value of the latter to fill defines_obstack.
+ (copy_comment): Remove.
+ (copy_comment2): Work for a single obstack.
+ Rename as...
+ (copy_comment): this.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ * src/lex.c, src/lex.h (xgetc): No longer static.
+ * src/reader.c (parse_union_decl): Revamp.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ Still making progress in separating Bison into (i) input, (ii)
+ process, (iii) output: now we can directly output the parser file
+ without using table_obstack at all.
+
+ * src/files.c, src/files.h (table_obstack): Bye bye.
+ (parser_file_name): New.
+ * src/files.c (compute_output_file_names): Compute it.
+ * src/output.c (actions_output, output_parser)
+ (output_master_parser): To a file instead of an obstack.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ Attach actions to rules, instead of pre-outputting them to
+ actions_obstack.
+
+ * src/gram.h (rule_t): action and action_line are new members.
+ * src/reader.c (symbol_list): Likewise.
+ (copy_action): Save the actions within the rule.
+ (packgram): Save them in rule_table.
+ * src/output.c (actions_output): New.
+ (output_parser): Use it on `%%actions'.
+ (output_rule_data): Don't free rule_table.
+ (output): Do it.
+ (prepare): Don't save the `action' muscle.
+ * src/bison.simple: s/%%action/%%actions/.
+
+2001-12-15 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_action): When --yacc, don't append a `;'
+ to the user action: let it fail if lacking.
+ Suggested by Arnold Robbins and Tom Tromey.
+
+2001-12-14 Akim Demaille <akim@epita.fr>
+
+ * src/lex.c (literalchar): Simply return the char you decoded, non
+ longer mess around with obstacks and int pointers.
+ Adjust all callers.
+
+2001-12-14 Akim Demaille <akim@epita.fr>
+
+ * src/lex.c (literalchar): Don't escape the special characters,
+ just decode them, and keep them as char (before, eol was output as
+ the 2 char string `\n' etc.).
+ * src/output.c (output_rule_data): Use quotearg to output the
+ token strings.
+
+2001-12-13 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
+ Do not infringe on the global user namespace when using C++.
+ (YYFPRINTF, YYSTDERR): New macros, needed for the above.
+ All uses of `fprintf' and `stderr' changed.
+
+ * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
+
+2001-12-13 Akim Demaille <akim@epita.fr>
+
+ The computation of nullable is broken: it doesn't handle empty
+ RHS's properly.
+
+ * tests/torture.at (GNU AWK Grammar): New.
+ * tests/sets.at (Nullable): New.
+ * src/nullable.c (set_nullable): Instead of blindly looping over
+ `ritems', loop over the rules, and then over their rhs's.
+
+ Work around Autotest bugs.
+
+ * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
+ frame, because Autotest understand lines starting with a `+' as
+ traces from the shell. Then, they are not processed properly.
+ Admittedly an Autotest bug, but we don't have time to wait for
+ Autotest to catch up.
+ * tests/regression.at (Broken Closure): Adjust to the new table
+ frames.
+ Move to...
+ * tests/sets.at: here.
+
+2001-12-13 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (closure): Use nrules instead of playing tricks
+ with BITS_PER_WORD.
+
+2001-12-13 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (print_actions): Output the handling of `$' as the
+ traces do: shifting the token EOF. Before EOF was treated as a
+ nonterminal.
+ * tests/regression.at: Adjust some tests.
+ * src/print_graph.c (print_core): Complete the set of items via
+ closure. The next-to-final and final states are still unsatisfying,
+ but that's to be addressed elsewhere.
+ No longer output the rule numbers, but do output the state number.
+ A single loop for the shifts + gotos is enough, but picked a
+ distinct color for each.
+ (print_graph): Initialize and finalize closure.
+
+2001-12-13 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (readgram): Remove dead code, an strip useless
+ braces.
+ (get_type): Remove, unused.
+
+2001-12-12 Akim Demaille <akim@epita.fr>
+
+ * src/complain.h, src/complain.c: Remove error_one_per_line, rely
+ on that of lib/error.c.
+
+2001-12-12 Akim Demaille <akim@epita.fr>
+
+ Some hosts don't like `/' in includes.
+
+ * src/system.h: Include libgettext.h without qualifying the path.
+ * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
+ $(top_srcdir).
+
+2001-12-11 Marc Autret <autret_m@epita.fr>
+
+ * src/output.c (output_parser): Remove useless muscle.
+
+2001-12-11 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple: Remove #line just before %%epilogue. It
+ is now handled in ...
+ * src/reader.c (read_additionnal_code): Add the output of a
+ #line for the epilogue.
+
+2001-12-10 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (copy_definition): Re-use CPP-outed code which
+ replace precedent remove.
+ * src/bison.simple: Remove #line before %%prologue because
+ %%input-line is wrong at this time.
+
+2001-12-10 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (symbols_output): Clean up.
+ * src/output.c (output_gram, output): Clean up.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (initialize_lookaheads): New. Extracted from...
+ * src/LR0.c (set_state_table): here.
+ * src/lalr.c (lalr): Call it.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (shifts): Remove the `number' member: shifts are
+ attached to state, hence no longer need to be labelled with a
+ state number.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ Now that states have a complete set of members, the linked list of
+ shifts is useless: just fill directly the state's shifts member.
+
+ * src/state.h (shifts): Remove the `next' member.
+ * src/LR0.c (first_state, last_state): Remove.
+ Adjust the callers.
+ (augment_automaton): Don't look for the shifts that must be added
+ a shift on EOF: it is those of the state we looked for! But now,
+ since shifts are attached, it is no longer needed to looking
+ merely by its id: its number.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (augment_automaton): Better variable locality.
+ Remove an impossible branch: if there is a state corresponding to
+ the start symbol being shifted, then there is shift for the start
+ symbol from the initial state.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
+ only when appropriate: when insert_start_shifting_state' is not
+ invoked.
+ * tests/regression.at (Rule Line Numbers): Adjust.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (augment_automaton): Now that all states have shifts,
+ merge the two cases addition shifts to the initial state.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (set_state_table): Move to...
+ * src/LR0.c: here.
+ * src/lalr.c (lalr): Don't call it...
+ * src/LR0.c (generate_states): do it.
+ * src/LR0.h (first_state): Remove, only the table is used.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.h (first_shift, first_reduction): Remove.
+ * src/lalr.c: Don't use first_shift: find shifts through the
+ states.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c: Attach shifts to states as soon as they are
+ computed.
+ * src/lalr.c (set_state_table): Instead of assigning shifts to
+ state, just assert that the mapping was properly done.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (insert_start_shift): Rename as...
+ (insert_start_shifting_state): this.
+ (insert_eof_shifting_state, insert_accepting_state): New.
+ (augment_automaton): Adjust.
+ Better locality of the variables.
+ When looking if the start_symbol is shifted from the initial
+ state, using `while (... symbol != start_symbol ...)' sounds
+ better than `while (... symbol < start_symbol ...)': If fail
+ to see how the order between symbols could be relevant!
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.h: Don't declare `spec_name_prefix' and
+ `spec_file_prefix', declared by src/files.h.
+ * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
+ * src/muscle_tab.c (muscle_init): Default prefix to NULL.
+ * src/output.c (prepare): Adjust.
+ * src/reader.c (symbols_output): Likewise.
+ * src/vmsgetargs.c: Vaguely adjust, but who cares?
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/muscle_tab.c (muscle_init): NULL is a better default than
+ `"0"'.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (reader): Calling symbols_output once is enough.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ Now that states have a complete set of members, the linked list of
+ reductions is useless: just fill directly the state's reductions
+ member.
+
+ * src/state.h (struct reductions): Remove member `number' and
+ `next'.
+ * src/LR0.c (first_reduction, last_reduction): Remove.
+ (save_reductions): Don't link the new reductions, store them in
+ this_state.
+ * src/lalr.c (set_state_table): No need to attach reductions to
+ states, it's already done.
+ * src/output.c (output_actions): No longer free the shifts, then
+ the reductions, then the states: free all the states and their
+ members.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/options.c (OPTN, DRTV, BOTH): New.
+ (option_table): Use them.
+
+ * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
+ the job of system.h.
+ * src/options.c: Don't include stdio.h and xalloc.h for the same
+ reasons.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output, prepare): Make sure the values of the
+ muscles `action' and `prologue' are 0-terminated.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ Clean up GCC warnings.
+
+ * src/reader.c (copy_action): `buf' is not used.
+ (parse_skel_decl): Be static.
+ * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
+ * src/options.h (create_long_option_table): Have a real prototype.
+ * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
+ (hash_delete_at): Return const void *.
+ Adjust casts to preserve the const.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Require 2.52g.
+ M4 is not needed, but AUTOM4TE is.
+ * m4/m4.m4: Remove.
+ * tests/Makefile.am: Adjust.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ One structure for states is enough, even though theoretically
+ there are LR(0) states and LALR(1) states.
+
+ * src/lalr.h (state_t): Remove.
+ (state_table): Be state_t **, not state_t *.
+ * src/state.h (core, CORE_ALLOC): Rename as...
+ (state_t, STATE_ALLOC): this.
+ Add the LALR(1) members: shifts, reductions, errs.
+ * src/LR0.c (state_table): Rename as...
+ (state_hash): this, to avoid name clashes with the global
+ `state_table'.
+ * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
+ * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
+
+2001-12-10 Akim Demaille <akim@epita.fr>
+
+ Bison dumps core on bash.y.
+ Reported by Pascal Bart.
+
+ * src/warshall.c (bitmatrix_print): New.
+ (TC): Use it.
+ When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
+ j must be the outer loop.
+ * tests/regression.at (Broken Closure): New.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
+ its argument.
+ Reported by Peter Hamorsky.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (err_table): Remove.
+ (resolve_sr_conflict): Adjust.
+ * src/lalr.h (state_t.reduction_table, state_t.shift_table):
+ Rename as...
+ (state_t.reductions, state_t.shifts): this.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (reduce_grammar_tables): No longer disable the
+ removal of useless rules via CPP but via `if (0)', so that the
+ compiler still check the code is valid.
+ For instance, it should have noticed `rline' no longer exists: use
+ the `line' member of rule_t.
+ * src/gram.c (dummy, rline): Remove, unused.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (pack_vector): Use assert, not berror.
+ * src/main.c (berror): Remove, unused.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ New experimental feature: if --verbose --trace output all the
+ items of a state, not only its kernel.
+
+ * src/print.c (print_core): If `trace_flag', then invoke closure
+ before outputting the items of the state (print_core is no longer
+ a correct name them).
+ (print_results): Invoke new_closure/free_closure if needed.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
+ * src/closure.c, src/closure.h (itemsetsize): Rename as...
+ (nitemset): for consistency with the rest of the project.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (print_closure): Improve.
+ (closure): Use it for printing input and output.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
+ indexed by nonterminals.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
+ what it was!).
+ * src/warshall.h: Remove accidental duplication of the content.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (set_fderives): De-obfuscate.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (print_firsts, print_fderives): De-obfuscate.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (set_firsts): De-obfuscate.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (action_row): De-obfuscate
+ using the good o' techniques: arrays not pointers, variable
+ locality, BITISSET, RESETBIT etc.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ Pessimize the code to simplify it: from now on, all the states
+ have a valid SHIFTS, which NSHIFTS is possibly 0.
+
+ * src/LR0.c (shifts_new): Be global and move to..
+ * src/state.c, src/state.h: here.
+ * src/conflicts, src/lalr.c, src/output.c, src/print.c,
+ * src/print_graph: Adjust.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
+ * src/conflicts.c: Use it.
+ Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
+ incorrectly ``simplified''.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
+ using the good o' techniques: arrays not pointers, variable
+ locality, BITISSET, RESETBIT etc.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (SHIFT_SYMBOL): New.
+ * src/conflicts.c: Use it to deobfuscate.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
+ (print_reductions): De-obfuscate using the good o' techniques:
+ arrays not pointers, variable locality, BITISSET.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (print_reductions): Arrays, not pointers.
+ Use BITISSET.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (print_reductions): Pessimize, but clarify.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (print_reductions): Improve variable locality.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (print_reductions): Pessimize, but clarify.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (print_reductions): Improve variable locality.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
+ * src/lalr.c: Use them.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (augment_automaton): Formatting changes.
+ Better variable locality.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (matrix_print): New.
+ (transpose): Use it.
+ Use arrays instead of pointers.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (maxrhs): Move to...
+ * src/gram.c, src/gram.h (ritem_longest_rhs): here.
+ * src/lalr.c (build_relations): Adjust.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (transpose): Free the memory allocated to the
+ argument, as it is replaced by the results by the unique caller.
+ (build_relations): Merely invoke transpose: it handles the memory
+ deallocation.
+ Improve variable locality.
+ Avoid variables used as mere abbreviations.
+ (compute_lookaheads): Use arrays instead of pointers.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (initialize_F): Improve variable locality.
+ Avoid variables used as mere abbreviations.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/derives.c (print_derives): Display the ruleno.
+ * src/lalr.c (initialize_F, transpose): Better variable locality
+ to improve readability.
+ Avoid variables used as mere abbreviations.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (traverse): Use arrays instead of pointers.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
+ the handling of squeue.
+ `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ Because useless nonterminals are now kept alive (instead of being
+ `destroyed'), we now sometimes examine them, and store information
+ related to them. Hence we need to know their number, and adjust
+ memory allocations.
+
+ * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
+ static.
+ * src/LR0.c (allocate_itemsets): The memory allocated to
+ `symbol_count' was used for two different purpose: once to count
+ the number of occurrences of each symbol, and later reassigned to
+ `shift_symbol', containing the symbol that can be shifted from a
+ given state.
+ Deobfuscate, i.e., allocate, use and free `symbol_count' here
+ only, and...
+ (new_itemsets): Allocate `shift_symbol' here.
+ (allocate_itemsets): symbol_count includes useless nonterminals.
+ Make room for them.
+ (free_storage): Use `free', not `XFREE', for pointers that cannot
+ be null.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/nullable.c (set_nullable): Deobfuscate the handling of
+ ritem.
+ `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
+
+2001-12-05 Akim Demaille <akim@epita.fr>
+
+ * src/gram.c, src/gram.h (ritem_print): New.
+ * src/gram.c (dummy): Remove, now there is actual code in gram.c.
+ (This useless function was defined only to work around VMS linkers
+ that can't handle compilation units with variables only).
+ * src/reduce.c (dump_grammar): Use it to trace the construction of
+ ritem.
+
+2001-12-04 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (union yyalloc): Change member names
+ to be the same as the stack names.
+ (yyparse): yyptr is now union yyalloc *, not char *.
+ (YYSTACK_RELOCATE): Likewise. This avoids a GCC warning,
+ and may generate better code on some machines.
+ (yystpcpy): Use prototype if __STDC__ is defined, not just
+ if __cplusplus is defined.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ * configure.in (WARNING_CFLAGS): Add -Werror when possible.
+ (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
+ Gettext doesn't compile cleanly, and dies with -Werror.
+ * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
+ Include WARNING_CFLAGS here.
+ * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
+ before being defined.
+
+2001-11-27 Paul Eggert <eggert@twinsun.com>
+
+ * lib/quotearg.h (quotearg_n, quotearg_n_style):
+ First arg is int, not unsigned.
+ * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
+ (SIZE_MAX, UINT_MAX): New macros.
+ (quotearg_n_options): Abort if N is negative.
+ Avoid overflow check on hosts where size_t is 64 bits and int
+ is 32 bits, as overflow is impossible there.
+ Fix off-by-one typo that caused unnecessary reallocation.
+
+2001-11-29 Paul Eggert <eggert@twinsun.com>
+
+ Name space cleanup in generated parser.
+
+ * doc/bison.texinfo (Bison Parser): Discuss system headers
+ and their effect on the user name space.
+
+ * src/bison.simple:
+ (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
+ YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
+ i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
+
+ (YYSIZE_T): New macro. Use it instead of size_t, to avoid infringing
+ on user names when possible.
+
+ (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
+ Simplify test for whather <alloca.h> exists.
+
+ (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
+
+ (<stdio.h>): Include if YYDEBUG.
+
+ (yymemcpy): Renamed from __yy_memcpy. Do not define unless
+ ! defined (yyoverflow) && ! defined (yymemcpy).
+
+ (yymemcpy, yyparse): Rename local variables as needed so that
+ they all begin with 'yy'.
+
+ (yystrlen, yystpcpy): New functions.
+
+ (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
+ All uses changed.
+
+ (yyparse): size_t -> YYSIZE_T. Use yystrlen and yystpcpy
+ instead of relying on string.h functions. Use YYSTACK_ALLOC
+ and YYSTACK_FREE instead of malloc and free.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
+ before their first uses.
+ (YYBISON, YYPURE): Move to the top of the output.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ * tests/reduce.at (Useless Nonterminals): Fix.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
+ if body instead of `;' to pacify GCC's warnings.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ Instead of mapping the LHS of unused rules to -1, keep the LHS
+ valid, but flag the rules as invalid.
+
+ * src/gram.h (rule_t): `useful' is a new member.
+ * src/print.c (print_grammar): Adjust.
+ * src/derives.c (set_derives): Likewise.
+ * src/reader.c (packgram, reduce_output): Likewise.
+ * src/reduce.c (reduce_grammar_tables): Likewise.
+ * tests/reduce.at (Underivable Rules, Useless Rules): New.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (reduce_output): Formatting changes.
+ * src/print.c (print_results, print_grammar): Likewise.
+ * tests/regression.at (Rule Line Numbers)
+ (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (nonterminals_reduce): Instead of throwing away
+ useless nonterminals, move them at the end of the symbol arrays.
+ (reduce_output): Adjust.
+ * tests/reduce.at (Useless Nonterminals): Adjust.
+
+2001-11-30 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c: Various comment/formatting changes.
+ (nonterminals_reduce): New, extracted from...
+ (reduce_grammar_tables): here.
+ (reduce_grammar): Call nonterminals_reduce.
+
+2001-11-29 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (YYSTACK_REALLOC): Remove.
+ (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
+ (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
+ New macros.
+ (union yyalloc): New type.
+ (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
+ an arbitrary restriction on hosts where size_t is wider than int.
+
+ (yyparse): Don't dump core if alloca or malloc fails; instead, report
+ a parser stack overflow. Allocate just one block of memory for all
+ three stacks, instead of allocating three blocks; this typically is
+ faster and reduces fragmentation.
+
+ Do not limit the number of items in the stack to a value that fits
+ in 'int', as this is an arbitrary limit on hosts with 64-bit
+ size_t and 32-bit int.
+
+2001-11-29 Marc Autret <autret_m@epita.fr>
+
+ * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
+ of defining YYERROR_VERBOSE.
+ [AT_DATA]: $4 is now out of C declarations in the prologue.
+
+2001-11-28 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (parse_dquoted_param): New.
+ (parse_skel_decl): Use it.
+ * src/lex.h: Add its prototype.
+ * src/lex.c (literalchar): Become not static.
+
+2001-11-28 Marc Autret <autret_m@epita.fr>
+
+ * src/output.h: And put its extern declaration here.
+ * src/output.c (error_verbose): Define here.
+ (prepare): Echo name modification.
+ * src/getargs.h: Clean its extern declaration.
+ * src/getargs.c (error_verbose_flag): Remove.
+ (getargs): Remove case 'e'.
+ * src/options.c (option_table): 'error-verbose' is now seen as simple
+ percent option.
+ Include output.h.
+
+ * src/reader.c (read_declarations): Remove case tok_include.
+ (parse_include_decl): Remove.
+ * src/lex.h (token_t): Remove tok_include.
+ * src/options.c (option_table): 'include' is now a simple command line
+ option.
+
+2001-11-28 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple: Adjust muscle names.
+ * src/muscle_tab.c (muscle_init): Also rename the muscles.
+ * src/output.c (prepare): s/_/-/ for the muscles names.
+ (output_parser): When scanning for a muscle, allow '-' instead of '_'.
+
+2001-11-28 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple: Fix debug.
+ [YYERROR_VERBOSE]: Re-integrate as an internal macro.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (shifts_new): New.
+ (save_shifts, insert_start_shift, augment_automaton): Use it.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (closure): `b' and `ruleno' denote the same value:
+ keep ruleno only.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (closure): Instead of looping over word in array
+ then bits in words, loop over bits in array.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (closure): No longer optimize the special case
+ where all the bits of `ruleset[r]' are set to 0, to make the code
+ clearer.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (closure): `r' and `c' are new variables, used to
+ de-obfuscate accesses to RULESET and CORE.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (reduce_print): Use ngettext.
+ (dump_grammar): Improve the trace accuracy.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (dump_grammar): Don't translate trace messages.
+
+2001-11-28 Akim Demaille <akim@epita.fr>
+
+ * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
+ * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
+ as all tags are free'ed afterwards.
+ From Enrico Scholz.
+
+2001-11-27 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
+ use alloca when we didn't want to, and vice versa.
+
+2001-11-27 Marc Autret <autret_m@epita.fr>
+
+ * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
+ initialization.
+ * src/output.c (prepare): Remove its update.
+
+2001-11-27 Marc Autret <autret_m@epita.fr>
+
+ * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
+ Use %error-verbose.
+
+2001-11-27 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple: Remove YYERROR_VERBOSE using.
+ Use %%error_verbose.
+ (yyparse): Likewise.
+ * src/output.c (prepare): Give its final value.
+ * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
+ * src/getargs.h: Add its extern declaration.
+ * src/getargs.c (error_verbose_flag): New int.
+ (getargs): Update to catch new case.
+ * src/options.c (option_table): 'error-verbose' is a new option.
+ (shortopts): Update.
+
+2001-11-27 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Use intl/libgettext.h.
+ * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
+
+2001-11-27 Akim Demaille <akim@epita.fr>
+
+ * tests/torture.at (Exploding the Stack Size with Malloc):
+ s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
+
+2001-11-27 Akim Demaille <akim@epita.fr>
+
+ * src/files.c: Include error.h.
+ Reported by Hans Aberg.
+
+2001-11-26 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (parse_include_decl): New, not yet implemented.
+ (read_declarations): Add case tok_include.
+ * src/getargs.h (include): Add its extern definition.
+ * src/getargs.c (include): New const char *.
+ (getargs): Add case '-I'.
+ * src/options.c (option_table): Add include as command line and
+ percent option.
+ * src/lex.h (token_t): Add tok_include.
+
+2001-11-26 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (readgram): Make sure rules for mid-rule actions
+ have a lineno equal to that of their host rule.
+ Reported by Hans Aberg.
+ * tests/regression.at (Rule Line Numbers): New.
+
+2001-11-26 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
+ size_ts.
+
+2001-11-26 Akim Demaille <akim@epita.fr>
+
+ * src/complain.c, src/complain.h (error): Remove, provided by
+ lib/error.[ch].
+
+2001-11-26 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (read_declarations): Don't abort on tok_illegal,
+ issue an error message.
+ * tests/regression.at (Invalid %directive): New.
+ Reported by Hans Aberg.
+
+2001-11-26 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
+ * lib/Makefile.am (libbison_a_SOURCES): Adjust.
+
+2001-11-26 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (conflicts_print): Don't complain at all when
+ there are no reduce/reduce conflicts, and as many shift/reduce
+ conflicts as expected.
+ * tests/regression.at (%expect right): Adjust.
+
+2001-11-23 Akim Demaille <akim@epita.fr>
+
+ * lib/alloca.c: Update, from fileutils.
+
+2001-11-23 Akim Demaille <akim@epita.fr>
+
+ * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
+
+2001-11-23 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Include alloca.h.
+ * src/main.c (main) [C_ALLOCA]: Call alloca (0).
+
+2001-11-23 Akim Demaille <akim@epita.fr>
+
+ * src/print_graph.c (print_actions): Remove `rule', unused.
+ * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
+ pacify GCC's signed < unsigned warnings.
+ * src/closure.c (itemsetsize): Likewise.
+ * src/reader.c (symbol_list_new): Static.
+
+2001-11-23 Akim Demaille <akim@epita.fr>
+
+ Attaching lineno to buckets is stupid, since only one copy of each
+ symbol is kept, only the line of the first occurrence is kept too.
+
+ * src/symtab.h, src/symtab.c (bucket): Remove the line member.
+ * src/reader.c (rline_allocated): Remove, unused.
+ (symbol_list): Have a `line' member.
+ (symbol_list_new): New.
+ (readgram): Use it.
+ * src/print.c (print_grammar): Output the rule line numbers.
+ * tests/regression.at (Solved SR Conflicts)
+ (Unresolved SR Conflicts): Adjust.
+ Reported by Hans Aberg.
+
+2001-11-22 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
+
+2001-11-22 Marc Autret <autret_m@epita.fr>
+
+ * src/muscle_tab.c (muscle_init): Remove initialization of
+ skeleton muscle.
+ * src/output.c (output_master_parser): Do it here.
+
+2001-11-20 Akim Demaille <akim@epita.fr>
+
+ * po/sv.po: New.
+ * configure.in (ALL_LINGUAS): Adjust.
+ * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
+ longer contains strings to translate.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (conflicts_print): Add a missing \n.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/nullable.c (nullable_print): New.
+ (set_nullable): Call it when tracing.
+ Better locality of variables.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/print.c (print_actions): Better locality of variables.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/derives.c (print_derives): Fix and enrich.
+ * src/closure.c (print_fderives): Likewise.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (itemsetend): Remove, replaced with...
+ (itemsetsize): new.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (kernel_end): Remove, replaced with...
+ (kernel_size): new.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (set_conflicts): Use arrays instead of pointers
+ to clarify.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c (closure): Use arrays instead of pointers to clarify.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c, src/derives.c, src/nullable.c: Adjust various
+ trace messages.
+ * src/LR0.c: Likewise.
+ (allocate_itemsets): Use arrays instead of pointers to clarify.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (statistics_flag): Replace with...
+ (trace_flag): New.
+ (longopts): Accept --trace instead of --statistics.
+ * src/getargs.h, src/options.c: Adjust.
+ * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
+ * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
+ pointers to clarify the code.
+ (save_reductions, save_shifts): Factor common parts of alternatives.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (new_state, get_state): Complete TRACE code.
+ * src/closure.c: Include `reader.h' to get `tags', needed by the
+ trace code.
+ Rename the conditional DEBUG as TRACE.
+ Output consistently TRACEs to stderr, not stdout.
+ * src/derives.c: Likewise.
+ * src/reduce.c: (inaccessable_symbols): Using if is better style
+ than goto.
+ Use `#if TRACE' instead of `#if 0' for tracing code.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/system.h (LIST_FREE, shortcpy): New.
+ * src/LR0.c: Use them.
+ * src/output.c (free_itemsets, free_reductions, free_shifts):
+ Remove, replaced by LIST_FREE.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
+ (REDUCTIONS_ALLOC): New.
+ * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
+ allocation.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.c (new_state): Complete trace code.
+ * src/nullable.c (set_nullable): Don't translate traces.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/print_graph.c (print_core): Better locality of variables.
+ * src/print.c (print_core): Likewise.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/vcg.c: You do the output, so you are responsible of the
+ handling of VCG syntax, in particular: use quotearg.
+ * src/print_graph.c: Don't.
+ (print_actions): Don't output the actions as part of the nodes,
+ since that's the job of the edges.
+ (print_state): Don't output by hand: fill the node description,
+ and ask for its output.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple (yyparse): When verbosely reporting an error,
+ no longer put additional quotes around token names.
+ * tests/calc.at: Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
+ * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
+ * src/output.c: Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
+ (rule_t): this.
+ * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (rule_t): New.
+ (rule_table): New.
+ (rrhs, rlhs): Remove, part of state_t.
+ * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
+ * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
+ * src/reader.c, src/reduce.c: Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (symbols_output): New, extracted from...
+ (packsymbols): Here.
+ (reader): Call it.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
+ (maxrhs): this new function.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (F): New macro to access the variable F.
+ Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h (LA): New macro to access the variable LA.
+ * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+ * src/lalr.c: Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.c (initialize_LA): Only initialize LA. Let...
+ (set_state_table): handle the `lookaheads' members.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h (lookaheads): Removed array, whose contents is now
+ a member of...
+ (state_t): this structure.
+ * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+ Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h (consistent): Removed array, whose contents is now
+ a member of...
+ (state_t): this structure.
+ * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+ Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
+ contents are now members of...
+ (state_t): this structure.
+ * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+ Adjust.
+
+2001-11-19 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h (state_t): New.
+ (state_table): Be a state_t * instead of a core **.
+ (accessing_symbol): Remove, part of state_t.
+ * src/lalr.c: Adjust.
+ (set_accessing_symbol): Merge into...
+ (set_state_table): this.
+ * src/print_graph.c, src/conflicts.c: Adjust.
+
+2001-11-14 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at, tests/output.at, tests/regression.at,
+ * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
+ now the tests are run in private dirs, therefore AC_CLEANUP and
+ family can be simplified to 0-ary.
+ * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
+ use abs. path to find config.h.
+ * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
+ stderr, there can be way too much random noise.
+ Instead pass -Werror to GCC and rely on the exit status.
+ Reported by Wolfram Wagner.
+
+2001-11-14 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
+ defined only if yyoverflow is defined, to avoid `warning: unused
+ variable `yyvs1''.
+ Reported by The Test Suite.
+
+2001-11-14 Akim Demaille <akim@epita.fr>
+
+ * src/print.c: Include reduce.h.
+ Reported by Hans Aberg.
+
+2001-11-14 Akim Demaille <akim@epita.fr>
+
+ * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
+ Revert a previous patch: these are really const.
+ * src/conflicts.c (conflict_report): Additional useless pair of
+ braces to pacify GCC's warnings for `if () if () {} else {}'.
+ * src/lex.c (parse_percent_token): Replace equal_offset with
+ arg_offset.
+ arg is const.
+ Be sure to strdup `arg' when used, since there is no reason for
+ token_buffer not to change.
+
+2001-11-14 Akim Demaille <akim@epita.fr>
+
+ * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
+ definition.
+ * src/main.c (main): Use them.
+ Suggested by Hans Aberg.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/system.h (ngettext): Now that we use ngettext, be sure to
+ provide a default definition when NLS are not used.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
+ Use @kbd to denote user input.
+ (Language and Grammar): ANSIfy the example.
+ Adjust its layout for info/notinfo.
+ (Location Tracking Calc): Output error messages to stderr.
+ Output locations in a more GNUtically correct way.
+ Fix a couple of Englishos.
+ Adjust @group/@end group pairs.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ %expect was not functioning at all.
+
+ * src/conflicts.c (expected_conflicts): Set to -1.
+ (conflict_report): Use ngettext.
+ (conflicts_print): Check %expect and make its violation an error.
+ * doc/bison.texinfo (Expect Decl): Adjust.
+ * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
+ * tests/regression.at (%expect not enough, %expect right)
+ (%expect too much): New.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Conflicts): Rename as...
+ (Unresolved SR Conflicts): this.
+ (Solved SR Conflicts): New.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.c (print_results): Rename as...
+ (reduce_output): This.
+ Output to OUT, passed as argument, instead of output_obstack.
+ (dump_grammar): Likewise.
+ (reduce_free): New.
+ Also free V1.
+ (reduce_grammar): No longer call reduce_output, since...
+ * src/print.c (print_results): do it.
+ * src/main.c (main): Call reduce_free;
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (print_reductions): Accept OUT as argument.
+ Output to it, not to output_obstack.
+ * src/print.c (print_actions): Adjust.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
+ the result instead of using...
+ (src_total, rrc_total, src_count, rrc_count): Remove.
+ (any_conflicts): Remove.
+ (print_conflicts): Split into...
+ (conflicts_print, conflicts_output): New.
+ * src/conflicts.h: Adjust.
+ * src/main.c (main): Invoke both conflicts_output and conflicts_print.
+ * src/print.c (print_grammar): Issue `\n' between two rules.
+ * tests/regression.at (Conflicts): New.
+ Reported by Tom Lane.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Invalid input): Remove, duplicate with
+ ``Invalid input: 1''.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * tests/torture.at (AT_DATA_STACK_TORTURE)
+ (Exploding the Stack Size with Alloca)
+ (Exploding the Stack Size with Malloc): New.
+
+2001-11-12 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple (YYSTACK_REALLOC): New.
+ (yyparse) [!yyoverflow]: Use it and free the old stack.
+ Reported by Per Allansson.
+
+2001-11-12 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/bison.simple: Define type yystype instead of YYSTYPE, and
+ define CPP macro, which substitute YYSTYPE by yystype.
+ * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
+ with yyltype/YYLTYPE. This allows inclusion of the generated
+ header within the parser if the compiler, such as GGC, accepts
+ multiple equivalent #defines.
+ From Akim.
+
+2001-11-05 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (symbols_output): New, extracted from...
+ (packsymbols): here.
+ (reader): Adjust.
+
+2001-11-05 Akim Demaille <akim@epita.fr>
+
+ * src/lex.c (parse_percent_token): s/quotearg/quote/.
+
+2001-11-05 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
+ pattern.
+
+2001-11-05 Akim Demaille <akim@epita.fr>
+
+ * src/options.h (struct option_table_struct): set_flags is void*.
+ * src/options.c (longopts): Support `--output' and `%output'.
+ (usage): Adjust.
+ * src/lex.h (tok_setopt): Remove, replaced with...
+ (tok_intopt, tok_stropt): these new guys.
+ * src/lex.c (getopt.h): Not needed.
+ (token_buffer, unlexed_token_buffer): Not const.
+ (percent_table): Promote `-' over `_' in directive names.
+ Active `%name-prefix', `file-prefix', and `output'.
+ (parse_percent_token): Accept possible arguments to directives.
+ Promote `-' over `_' in directive names.
+
+2001-11-04 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Decl Summary): Split the list into
+ `directives for grammars' and `directives for bison'.
+ Sort'em.
+ Add description of `%name-prefix', `file-prefix', and `output'.
+ Promote `-' over `_' in directive names.
+ (Bison Options): s/%locactions/%locations/. Nice Freudian slip.
+ Simplify the description of `--name-prefix'.
+ Promote `-' over `_' in directive names.
+ Promote `--output' over `--output-file'.
+ Fix the description of `--defines'.
+ * tests/output.at: Exercise %file-prefix and %output.
+
+2001-11-02 Akim Demaille <akim@epita.fr>
+
+ * doc/refcard.tex: Update.
+
+2001-11-02 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.h (SUNDEF): New.
+ * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
+ stand for `uninitialized', instead of 0.
+ * src/reader.c (packsymbols, parse_thong_decl): Adjust.
+ * src/lex.c (lex): Adjust.
+
+ * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
+ Number it 0.
+ Let yylex return it instead of a plain 0.
+ Reported by Dick Streefland.
+
+2001-11-02 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Mixing %token styles): New test.
+
+2001-11-02 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_thong_decl): Formatting changes.
+ (token_translations_init): New, extracted from...
+ (packsymbols): Here.
+ Adjust.
+
+2001-11-01 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
+ Check that `9foo.y' produces correct cpp guards.
+ * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
+ guards.
+ Reported by Wwp.
+
+2001-11-01 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Invalid input: 2): New.
+ * src/lex.c (unlexed_token_buffer): New.
+ (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
+ too.
+ Reported by Wwp.
+
+2001-11-01 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at: Catch up with 1.30.
+ * configure.in: Bump to 1.49a.
+ Adjust to newer Autotest.
+
+2001-10-19 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/conflicts.c: Move global variables rrc_total and src_total ...
+ (print_conflicts): here.
+ * src/output.c (output): Free global variable user_toknums.
+ * src/lex.c (token_obstack): Become static.
+
+2001-10-18 Akim Demaille <akim@epita.fr>
+
+ * tests/atlocal.in (GCC): Add.
+ * tests/calc.at: s/m4_match/m4_bmatch/.
+ s/m4_patsubst/m4_bpatsubst/.
+ (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
+ * configure.in: AC_SUBST(GCC).
+
+2001-10-14 Marc Autret <autret_m@epita.fr>
+
+ * src/options.c (create_long_option_table): Fix.
+
+2001-10-10 Akim Demaille <akim@epita.fr>
+
+ * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
+
+2001-10-04 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_union_decl): Push the caracters in
+ union_obstack, not attrs_obstack.
+
+2001-10-04 Akim Demaille <akim@epita.fr>
+
+ Merge in the branch 1.29.
+
+ * src/reader.c (packsymbols): Use a temporary obstack for
+ `%%tokendef', since output_stack is already used elsewhere.
+
+ 2001-10-02 Akim Demaille <akim@epita.fr>
+
+ Bump 1.29d.
+
+ 2001-10-02 Akim Demaille <akim@epita.fr>
+
+ Version 1.29c.
+
+ 2001-10-02 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Invalid CPP headers): New.
+ From Alexander Belopolsky.
+ * src/files.c (compute_header_macro): Map non alnum chars to `_'.
+
+ 2001-10-02 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.at (Invalid input): New.
+ * src/lex.c (lex): Be sure to set `token_buffer' in any case.
+ Reported by Shura.
+
+ 2001-10-02 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at: Now that --debug works, the tests must be adjusted.
+
+ 2001-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_parser): Assert `skeleton'.
+ * src/files.c (skeleton_find): Look harder for skeletons on DOSish
+ systems.
+ From Shura.
+
+ 2001-10-01 Marc Autret <autret_m@epita.fr>
+
+ * src/lex.h: Echo modifications.
+ * src/lex.c (unlex): Parameter is now token_t.
+ From Hans Aberg.
+
+ 2001-10-01 Marc Autret <autret_m@epita.fr>
+
+ * src/main.c: Include lex.h.
+ From Hans Aberg.
+
+ 2001-09-29 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
+
+ 2001-09-28 Akim Demaille <akim@epita.fr>
+
+ * tests/testsuite.at: Update to newer Autotest.
+ * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
+
+ 2001-09-27 Akim Demaille <akim@epita.fr>
+
+ Position independent wrapper.
+
+ * tests/bison: Remove.
+ * tests/bison.in: New.
+ * configure.in: Adjust.
+
+ 2001-09-27 Paul Eggert <eggert@twinsun.com>
+
+ Port quotearg fixes from tar 1.13.24.
+
+ * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
+ tm to be declared.
+ (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
+ (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
+
+ * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
+ * m4/mbrtowc.m4: New file.
+ * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
+ Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
+
+ 2001-09-27 Akim Demaille <akim@epita.fr>
+
+ Bump to 1.29c.
+
+ 2001-09-27 Akim Demaille <akim@epita.fr>
+
+ Version 1.29b.
+
+ 2001-09-25 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Include `xalloc.h'.
+ Remove it from the C files.
+ * src/files.c (output_files): Free the obstacks.
+ * src/lex.c (init_lex): Rename as...
+ (lex_init): this.
+ (lex_free): New.
+ * src/main.c (main): Use it.
+
+ 2001-09-24 Marc Autret <autret_m@epita.fr>
+
+ * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
+ to output informations in fout (FILE*).
+ (open_graph, close_graph): Likewise.
+ (output_graph, output_edge, output_node): Likewise.
+ * src/vcg.h: Update function prototypes.
+ * src/print_graph.c (print_graph): Open output graph file.
+ (print_actions): Adjust.
+ * src/files.h: Remove extern declaration.
+ * src/files.c: Remove graph_obstack declaration.
+ (open_files): Remove graph_obstack initialization.
+ (output_files): Remove graph_obstack saving.
+
+ 2001-09-24 Marc Autret <autret_m@epita.fr>
+
+ * src/files.c (compute_output_file_names): Fix.
+
+ 2001-09-24 Marc Autret <autret_m@epita.fr>,
+ Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (reader): Remove call to free_symtab ().
+ * src/main.c (main): Call it here.
+ Include symtab.h.
+ * src/conflicts.c (initialize_conflicts): Rename as...
+ (solve_conflicts): this.
+ * src/print.c (print_core, print_actions, print_state)
+ (print_grammar): Dump to a file instead a `output_obstack'.
+ (print_results): Dump `output_obstack', and then proceed with the
+ FILE *.
+ * src/files.c (compute_output_file_names, close_files): New.
+ (output_files): Adjust.
+ * src/main.c (main): Adjust.
+
+ 2001-09-23 Marc Autret <autret_m@epita.fr>
+
+ * src/files.c (compute_header_macro): Computes header macro name
+ from spec_defines_file when given.
+
+ 2001-09-23 Marc Autret <autret_m@epita.fr>
+
+ * src/files.c (output_files): Add default extensions.
+
+ 2001-09-22 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (finalize_conflicts): Rename as...
+ (free_conflicts): this.
+
+ 2001-09-22 Akim Demaille <akim@epita.fr>
+
+ * src/gram.c (gram_free): Rename back as...
+ (dummy): this.
+ (output_token_translations): Free `token_translations'.
+ * src/symtab.c (free_symtab): Free the tag field.
+
+ 2001-09-22 Akim Demaille <akim@epita.fr>
+
+ Remove `translations' as it is always set to true.
+
+ * src/gram.h: Adjust.
+ * src/reader.c (packsymbols, parse_token_decl): Adjust
+ * src/print.c (print_grammar): Adjust.
+ * src/output.c (output_token_translations): Adjust.
+ * src/lex.c (lex): Adjust.
+ * src/gram.c: Be sure the set pointers to NULL.
+ (dummy): Rename as...
+ (gram_free): this.
+
+ 2001-09-22 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Invoke AM_LIB_DMALLOC.
+ * src/system.h: Use dmalloc.
+ * src/LR0.c: Be sure to have pointers initialized to NULL.
+ (allocate_itemsets): Allocate kernel_items only if needed.
+
+ 2001-09-22 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Bump to 1.29b.
+ * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
+ * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
+ need xmalloc.c in calc.y.
+ From Pascal Bart.
+
+ 2001-09-21 Akim Demaille <akim@epita.fr>
+
+ Version 1.29a.
+ * Makefile.maint, config/config.guess, config/config.sub,
+ * config/missing: Update from masters.
+ * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
+ upon package.m4.
+ * configure.in (ALL_LINGUAS): Add `tr'.
+
+ 2001-09-21 Akim Demaille <akim@epita.fr>
+
+ * tests/Makefile.am (package.m4): Move to...
+ ($(srcdir)/$(TESTSUITE)): here.
+
+ 2001-09-20 Akim Demaille <akim@epita.fr>
+
+ * src/complain.c: No longer try to be standalone: use system.h.
+ Don't assume __STDC__ is defined to 1. Just test if it is defined.
+ * src/complain.h: Likewise.
+ * src/reduce.c (useless_nonterminals, inaccessable_symbols):
+ Remove the unused variable `n'.
+ From Albert Chin-A-Young.
+
+ 2001-09-18 Marc Autret <autret_m@epita.fr>
+
+ * doc/bison.1: Update.
+ * doc/bison.texinfo (Bison Options): Update --defines and --graph
+ descriptions.
+ (Option Cross Key): Update.
+ Add --graph.
+
+ 2001-09-18 Marc Autret <autret_m@epita.fr>
+
+ * tests/regression.at: New test (comment in %union).
+
+ 2001-09-18 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
+ do that.
+ Reported by Keith Browne.
+
+ 2001-09-18 Marc Autret <autret_m@epita.fr>
+
+ * tests/output.at: Add tests for --defines and --graph.
+
+ 2001-09-18 Marc Autret <autret_m@epita.fr>
+
+ * tests/output.at: Removes tests of %{header,src}_extension features.
+
+ 2001-09-18 Akim Demaille <akim@epita.fr>
+
+ * tests/Makefile.am (package.m4): New.
+ * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
+ (_AT_CHECK_CALC_ERROR): Likewise.
+ Factor the `, ' part of verbose error messages.
+
+ 2001-09-18 Marc Autret <autret_m@epita.fr>
+
+ * src/getargs.c (longopts): Declare --defines and --graph as options
+ with optional arguments.
+ * src/files.h: Add extern declarations.
+ * src/files.c (spec_graph_file, spec_defines_file): New.
+ (output_files): Update.
+ Remove CPP-outed code.
+
+ 2001-09-18 Marc Autret <autret_m@epita.fr>
+
+ Turn off %{source,header}_extension feature.
+
+ * src/files.c (compute_exts_from_gf): Update.
+ (compute_exts_from_src): Update.
+ (output_files): CPP-out useless code.
+ * src/files.h: Remove {header,source}_extension extern declarations.
+ * src/reader.c (parse_dquoted_param): CPP-out.
+ (parse_header_extension_decl): Remove.
+ (parse_source_extension_decl): Remove.
+ (read_declarations): Remove cases tok_{hdrext,srcext}.
+ * src/lex.c (percent_table): Remove {header,source}_extension entries.
+ * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
+
+ 2001-09-10 Akim Demaille <akim@epita.fr>
+
+ * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
+ (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
+ (AT_CHECK_OUTPUT): this.
+ Merely check ls' exit status, its output is useless.
+
+ 2001-09-10 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.at: Use m4_match.
+ (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
+
+ 2001-09-10 Marc Autret <autret_m@epita.fr>,
+ Akim Demaille <akim@epita.fr>
+
+ * src/vcg.h (graph_s): color, textcolor, bordercolor are now
+ enum color_e.
+ * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
+ to `normal'.
+ * src/reader.c (parse_token_decl): Initialize token with tok_eof.
+ * src/lex.h: Adjust prototype.
+ (token_t): Add `tok_undef'.
+ * src/lex.c (struct percent_table_struct): Retval is now a token_t.
+ (parse_percent_token): Now returns token_t.
+ Add default statement in switch.
+ (lex): Separate `c' as an input variable, from the token_t result
+ part.
+ (unlexed): Is a token_t.
+
+ 2001-09-10 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Bump to 1.29a.
+
+ 2001-09-07 Akim Demaille <akim@epita.fr>
+
+ Version 1.29.
+
+ 2001-08-30 Akim Demaille <akim@epita.fr>
+
+ * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
+ * m4/atconfig.m4: Remove.
+ * tests/testsuite.at, tests/atlocal.in, tests/output.at,
+ * tests/bison: New.
+ * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
+ m4_if, m4_patsubst, and m4_regexp.
+ * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
+ `input' file instead of echo.
+
+ 2001-08-29 Akim Demaille <akim@epita.fr>
+
+ Bump to 1.28e.
+
+ 2001-08-29 Akim Demaille <akim@epita.fr>
+
+ Version 1.28d.
+
+ 2001-08-29 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (yyparse): Don't take the address of an
+ item before the start of an array, as that doesn't conform to
+ the C Standard.
+
+ 2001-08-29 Robert Anisko <anisko_r@epita.fr>
+
+ * doc/bison.texinfo (Location Tracking Calc): New node.
+
+ 2001-08-29 Paul Eggert <eggert@twinsun.com>
+
+ * src/output.c (output): Do not define const, as this now
+ causes more problems than it cures.
+
+ 2001-08-29 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
+ the nodes.
+ Be sure to tag the `detailmenu'.
+
+ 2001-08-29 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint (do-po-update): Wget refuses to overwrite files:
+ download in a tmp dir.
+
+ 2001-08-28 Marc Autret <autret_m@epita.fr>
+
+ * config/depcomp: New file.
+
+ 2001-08-28 Marc Autret <autret_m@epita.fr>
+
+ * doc/bison.1 (mandoc): Adjust.
+ From Juan Manuel Guerrero.
+
+ 2001-08-28 Marc Autret <autret_m@epita.fr>
+
+ * src/print_graph.c (print_state): Fix.
+
+ 2001-08-27 Marc Autret <autret_m@epita.fr>
+
+ * src/vcg.h (classname_s, infoname_s, node_s): Constify the
+ char * members.
+ Echo modifications to the functions prototypes.
+ * src/vcg.c (add_classname, add_infoname): Adjust arguments.
+
+ 2001-08-27 Marc Autret <autret_m@epita.fr>
+
+ * src/vcg.c: Include `xalloc.h'.
+ (add_colorentry): New.
+ (add_classname): New.
+ (add_infoname): New.
+ * src/vcg.h: Add new prototypes.
+
+ 2001-08-27 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Sync. again with CVS Autoconf.
+
+ 2001-08-27 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Formatting changes.
+ (po-update, cvs-update, update): New targets.
+ (AMTAR): Remove.
+
+ 2001-08-27 Akim Demaille <akim@epita.fr>
+
+ * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
+ * Makefile.maint: Sync. with CVS Autoconf.
+
+ 2001-08-27 Marc Autret <autret_m@epita.fr>
+
+ * src/vcg.h (struct infoname_s): New.
+ (struct colorentry_s): New.
+ (graph_s): New fields {vertical,horizontal}_order in structure.
+ Add `infoname' field.
+ Add `colorentry' field;
+ * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
+ (G_HORIZONTAL_ORDER): New.
+ (G_INFONAME): New.
+ (G_COLORENTRY): New.
+ * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
+ Add output of `infoname'.
+ Add output of `colorentry'.
+
+ 2001-08-27 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
+ This one shadowed a global parameter.
+
+ 2001-08-24 Marc Autret <autret_m@epita.fr>
+
+ * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
+ instead of `unsigned'.
+ (print_state): Do not call obstack_object_size () in obstack_grow ()
+ to avoid macro variables shadowing.
+
+ 2001-08-23 Marc Autret <autret_m@epita.fr>
+
+ * src/lex.c (percent_table): Typo: s/naem/name/.
+ Add graph option.
+ Normalize new options declarations.
+
+ 2001-08-20 Pascal Bart <pascal.bart@epita.fr>
+
+ * tests/suite.at: Exercise %header_extension and %source_extension.
+
+ 2001-08-16 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (parse_dquoted_param): New.
+ (parse_header_extension_decl): Use it.
+ (parse_source_extension_decl): Likewise.
+
+ 2001-08-16 Marc Autret <autret_m@epita.fr>
+
+ * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
+ (get_xxxx_str): Use assert () instead of complain ().
+ Remove return invokations in default cases.
+ (get_decision_str): Modify default behaviour. Remove second argument.
+ Echo modifications on calls.
+ (output_graph): Fix.
+
+ 2001-08-16 Marc Autret <autret_m@epita.fr>
+
+ * src/getargs.c (usage): Update with ``-g, --graph''.
+
+ 2001-08-16 Marc Autret <autret_m@epita.fr>
+
+ * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
+ (Option Cross Key): Likewise.
+ * doc/bison.1: Update.
+
+2001-09-25 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/output.c (output_master_parser): Don't finish action_obstack.
+ (output_parser): Don't care about the muscle action, here.
+ (prepare): Copy the action_obstack in the action muscle.
+ (output): Free action_obstack.
+
+2001-09-23 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/reader.c (parse_union_decl): Add new obstack union_obstack. Which
+ will contain `%union' declaration.
+ (parse_union_decl): Delete #line directive output.
+ (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
+ informations about %union.
+ (parse_union_decl): Copy the union_obstack in the muscle stype.
+ * src/bison.simple: Add new #line directive.
+ Add typdef %%stype YYSTYPE.
+
+2001-09-23 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/bison.simple: Add new `#line' directive.
+
+2001-09-22 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/bison.simple: New `#line' directive.
+ * src/output.c (output_parser): Support new dynamic muscle input_line.
+
+2001-09-22 Marc Autret <autret_m@epita.fr>
+
+ * src/output.c (output_master_parser): New.
+ (output_parser): Be more re-entrant.
+
+2001-09-21 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (copy_definition, parse_union_decl): Update and use
+ `linef' muscle.
+ (copy_action): Likewise.
+ Use obstack_1grow ().
+ * src/muscle_tab.c (muscle_init): Add muscle `linef'.
+
+2001-09-21 Marc Autret <autret_m@epita.fr>
+
+ * src/options.c (option_table): Adjust.
+ * src/lex.c (parse_percent_token): Fix.
+
+2001-09-20 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/options.c (symtab.h): Include it, need by lex.h.
+
+2001-09-20 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/lex.c (parse_percent_token): Change type of variable `tx', which
+ is now an option_table_struct*.
+ (option_strcmp): New function option_strcmp.
+ (parse_percent_token): Call option_strcmp.
+ * src/getargs.c (xalloc.h, options.h): Include it.
+ (getargs): Call create_long_option_table.
+ (getargs): Free longopts at the end of the function.
+ (shortopts): Move in options.c.
+ * src/options.c (create_long_option_table): New function. Convert
+ information from option_table to option structure.
+ * src/reader.c (options.h): Include it.
+
+ * src/Makefile.am: Adjust.
+ * src/options.c (option_table): Create from longopts and percent_table.
+ * src/getargs.c (longopts): Delete.
+ * src/lex.c (struct percent_table_struct): Delete.
+ (percent_table): Delete.
+ (options.h): Include it.
+ * src/options.c: Create.
+ * src/options.h: Create.
+ Declare enum opt_access_e.
+ Define struct option_table_struct.
+
+2001-09-20 Marc Autret <autret_m@epita.fr>
+
+ * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
+ sections of Bison.
+
+2001-09-19 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/bison.simple: s/%%filename/%%skeleton.
+ * src/muscle_tab.c (getargs.h): Include it.
+ (muscle_init): Insert new muscle skeleton.
+
+2001-09-18 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/output.c (output_parser): Delete unused variable actions_dumped.
+
+2001-09-07 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/output.c (output): Delete call to reader_output_yylsp.
+ * src/reader.c (reader): Likewise.
+ * src/reader.h: Delete declaration of reader_output_yylsp.
+
+2001-09-02 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c: Include muscle_tab.h.
+ (parse_union_decl): Update.
+ (parse_macro_decl): Rename parse_muscle_decl.
+ Update to use renamed functions and variable.
+ (read_declarations, copy_action, read_additionnal_code, : Updated
+ with correct variables and functions names.
+ (packsymbols, reader): Likewise.
+
+ * src/reader.h (muscle_obstack): Extern declaration update.
+
+ * src/output.c: Include muscle_tab.h
+ In all functions using macro_insert, change by using muscle_insert ().
+ (macro_obstack): Rename muscle_obstack.
+ Echo modifications in the whole file.
+ (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
+ (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
+ (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
+
+ * src/muscle_tab.h: Update double inclusion macros.
+ (macro_entry_s): Rename muscle_entry_s.
+ Update prototypes.
+
+ * src/muscle_tab.c: Include muscle_tab.h.
+ Rename macro_tabble to muscle_table.
+ (mhash1, mhash2, mcmp): Use muscle_entry.
+ (macro_init): Rename muscle_init. Update.
+ (macro_insert): Rename muscle_insert. Update.
+ (macro_find): Rename muscle_find. Update.
+
+ * src/main.c: Include muscle_tab.h.
+ (main): Call muscle_init ().
+ * src/Makefile.am (bison_SOURCES): Echo modifications.
+
+2001-09-02 Marc Autret <autret_m@epita.fr>
+
+ Now the files macro_tab.[ch] are named muscle_tab.[ch].
+
+ * src/muscle_tab.c, src/muscle_tab.h: Add files.
+
+2001-09-02 Marc Autret <autret_m@epita.fr>
+
+ * src/macrotab.c, src/macrotab.h: Remove.
+
+2001-09-01 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/reader.c (copy_guard): Use muscle to specify the `#line'
+ filename.
+
+2001-09-01 Marc Autret <autret_m@epita.fr>
+
+ * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
+ to an explicit value to activate the feature. We do it here.
+
+2001-08-31 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/output.c (prepare): Delete the `filename' muscule insertion.
+ * src/reader.c (copy_action): Use `filename' muscule with `#line'.
+ (parse_union_decl): Likewise.
+ * src/macrotab.c (macro_init): Initialize filename by infile.
+
+2001-08-31 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple (YYLSP_NEEDED): New definition.
+ * src/output.c (prepare): Add macro insertion of `locations_flag'
+
+2001-08-31 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/output.c (prepare): Delete insertion of previous muscles,
+ and insert the `prefix' muscles.
+ * src/macrotab.c (macro_init): Likewise.
+ (macro_init): Initialization prefix directive by `yy'.
+ * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
+ %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
+ yylval, yydebug, yyerror, yynerrs and yyparse.
+ New directive `#define' to substitute yydebug, ... with option
+ name_prefix.
+
+2001-08-31 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/main.c (main): Standardize.
+ * src/output.c (output_table_data, output_parser): Likewise.
+ * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
+
+2001-08-31 Pascal Bart <pascal.bart@epita.fr>, Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (read_additionnal_code): Rename %%user_code to
+ %%epilogue.
+ * src/output.c (output): Rename %%declarations to %%prologue.
+ * src/bison.simple: Echo modifications.
+
+2001-08-31 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (readgram): CleanUp.
+ (output_token_defines): Likewise.
+ (packsymbols): Likewise.
+ (reader): Likewise.
+ * src/output.c (output): CPP-out useless code.
+
+2001-08-31 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/reader.c (reader): Delete obsolete call to function
+ output_trailers and output_headers.
+ * src/output.h: Remove obsolete functions prototypes of output_headers
+ and output_trailers.
+
+2001-08-30 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/main.c: Include macrotab.h.
+ * src/macrotab.h (macro_entry_s): Constify fields.
+ Adjust functions prototypes.
+ * src/macrotab.c (macro_insert): Constify key and value.
+ (macro_find): Constify key.
+ (macro_insert): Include 'xalloc.h'
+ (macro_insert): Use XMALLOC.
+ (macro_find): Constify return value.
+ * src/output.c (output_table_data): Rename table to table_data.
+ (output_parser): Constify macro_key, macro_value.
+
+2001-08-30 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (parse_skel_decl): New.
+ (read_declarations): Add case `tok_skel', call parse_skel_decl ().
+ * src/lex.h (token_t): New token `tok_skel'.
+ * src/lex.c (percent_table): Add skeleton option entry.
+ Standardize.
+
+2001-08-29 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple: Add %%user_code directive at the end.
+ * src/reader.c (read_additionnal_code): New.
+ (reader): Use it.
+ * src/output.c (output_program): Remove.
+ (output): Update.
+
+2001-08-28 Marc Autret <autret_m@epita.fr>
+
+ * src/output.c (output_actions): Clean up.
+ (output_gram): CPP-out useless code.
+ * src/reader.c (reader): Clean up, CPP-out useless code.
+
+2001-08-28 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/output.c (output): Copy attrs_obstack in the '%%definitions'
+ directive.
+ * src/bison.simple: Add `%%definitions'.
+
+2001-08-28 Marc Autret <autret_m@epita.fr>
+
+ * config/depcomp: New file.
+
+2001-08-27 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (yyparse): Don't take the address of an
+ item before the start of an array, as that doesn't conform to
+ the C Standard.
+
+2001-08-27 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/output.c (output): Remove the initialization of the macro
+ obstack. It was done too late here.
+
+ * src/reader.c (parse_macro_decl): Fix. Use of the macro obstack was
+ completely wrong.
+ (reader): Initialize the macro obstack here, since we need it to grow
+ '%define' directives.
+
+ * src/reader.h: Declare the macro obstack as extern.
+
+2001-08-27 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/output.c (output_parser): Fix. Store single '%' characters in
+ the output obstack instead of throwing them away.
+
+2001-08-27 Akim Demaille <akim@epita.fr>
+
+ * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * lib/Makefile.am: Adjust.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/bison.simple: Update and add '%%' directives.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/reader.c (reader): Remove calls to 'output_headers' and
+ 'output_trailers'. Remove some C output.
+ (readgram): Disable a piece of code that was writing a default
+ definition for 'YYSTYPE'.
+ (reader_output_yylsp): Remove.
+ (packsymbols): Output token defintions to a macro.
+ (copy_definition): Disable C output.
+
+ * src/reader.c (parse_macro_decl): New function used to parse macro
+ declarations.
+ (copy_string2): Put the body of copy_string into this new function.
+ Add a parameter to let the caller choose whether he wants to copy the
+ string delimiters or not.
+ (copy_string): Be a simple call to copy_string2 with the last argument
+ bound to true.
+ (read_declarations): Add case for macro definition.
+ (copy_identifier): New.
+ (parse_macro_decl): Read macro identifiers using copy_identifier
+ rather than lex.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/output.c (prepare): Add prefixed names.
+ (output_parser): Output semantic actions.
+ (output_parser): Fix bug on '%%line' directives.
+
+ * src/output.c (output_headers): Remove. The C code printed by this
+ function should now be in the skeletons.
+ (output_trailers): Remove.
+ (output): Disable call to 'reader_output_yylsp'.
+ (output_rule_data): Do not output tables to the table obstack.
+
+ * src/output.c: Remove some C dedicated output.
+ Improve the use of macro and output obstacks.
+ (output_defines): Remove.
+
+ * src/output.c (output_token_translations): Associate 'translate'
+ table with a macro. No output to the table obstack.
+ (output_gram): Same for 'rhs' and 'prhs'.
+ (output_stos): Same for 'stos'.
+ (output_rule_data): Same for 'r1' and 'r2'.
+ (token_actions): Same for 'defact'.
+ (goto_actions): Same for 'defgoto'.
+ (output_base): Same for 'pact' and 'pgoto'.
+ (output_table): Same for 'table'.
+ (output_check): Same for 'check'.
+
+ * src/output.c (output_table_data): New function.
+ (output_short_table): Remove.
+ (output_short_or_char_table): Remove.
+
+ * src/output.c (output_parser): Replace most of the skeleton copy code
+ with something new. Skeletons are now processed character by character
+ rather than line by line, and Bison looks for '%%' macros. This is the
+ first step in making Bison's output process (a lot) more flexible.
+ (output_parser): Use the macro table.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/main.c (main): Initialize the macro table.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/lex.c (percent_table): Add tok_define.
+ * src/lex.h: Add tok_define.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * src/macrotab.c: New file.
+ * src/macrotab.h: New file.
+ * src/Makefile.am: Update.
+
+2001-08-25 Robert Anisko <robert.anisko@epita.fr>
+
+ * lib/hash.c: New file.
+ * lib/hash.h: New file.
+ * lib/Makefile.am: Update.
+
+2001-08-15 Akim Demaille <akim@epita.fr>
+
+ Version 1.28c.
+
+2001-08-15 Marc Autret <autret_m@epita.fr>
+
+ * src/reader.c (readgram): Indent output macro YYSTYPE.
+ (packsymbols): Likewise.
+ (output_token_defines): Likewise.
+ * src/files.c: Standardize.
+ (compute_header_macro): New.
+ (defines_obstack_save): New. Use compute_header_macro.
+ (output_files): Update. Use defines_obstack_save.
+
+2001-08-15 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo (Table of Symbols): Document
+ YYSTACK_USE_ALLOCA.
+
+2001-08-15 Akim Demaille <akim@epita.fr>
+
+ * missing: Update from CVS Automake.
+ * config/config.guess, config/config.sub, config/texinfo.tex:
+ Update from gnu.org.
+
+2001-08-15 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint: Sync with CVS Autoconf.
+
+2001-08-14 Pascal Bart <pascal.bart@epita.fr>
+
+ * doc/bison.texinfo: Include GNU Free Documentation License from
+ `fdl.texi'.
+ * doc/fdl.texi: Add to package.
+
+2001-08-14 Marc Autret <autret_m@epita.fr>
+
+ Turn on %{source,header}_extension features.
+
+ * src/lex.c (percent_table): Un-CPP out header_extension and
+ source_extension.
+ * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
+ (compute_exts_from_src): Remove conditions. It restores priorities
+ between options.
+
+2001-08-14 Marc Autret <autret_m@epita.fr>
+
+ * src/files.c (compute_base_names): Add extensions computing when
+ `--file-prefix' used.
+ Standardize function calls.
+
+2001-08-13 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
+ defining it (defined but null disables alloca).
+
+2001-08-13 Marc Autret <autret_m@epita.fr>
+
+ * src/bison.simple (_yy_memcpy): CPP reformat.
+
+2001-08-13 Pascal Bart <pascal.bart@epita.fr>
+
+ * tests/atconfig.in (CPPFLAGS): Fix.
+
+2001-08-10 Pascal Bart <pascal.bart@epita.fr>
+
+ * doc/bison.texinfo: Include GNU General Public License from
+ `gpl.texi'.
+ * doc/gpl.texi: Add to package.
+
+2001-08-10 Marc Autret <autret_m@epita.fr>
+
+ * src/print_graph.h: Fix.
+ * src/reader.c (read_declarations): Use parse_header_extension_decl ().
+
+2001-08-10 Akim Demaille <akim@epita.fr>
+
+ * src/system.h: Provide default declarations for stpcpy, strndup,
+ and strnlen.
+
+2001-08-10 Robert Anisko <anisko_r@epita.fr>
+
+ * doc/bison.texinfo (Locations): Update @$ stuff.
+
+2001-08-09 Robert Anisko <anisko_r@epita.fr>
+
+ * src/bison.simple (YYLLOC_DEFAULT): Update.
+ (yyparse): Adjust.
+
+2001-08-08 Marc Autret <autret_m@epita.fr>
+
+ * doc/bison.texinfo: Change @samp{$<@dots{}>} to
+ @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
+ Reported by Fabrice Bauzac.
+
+2001-08-08 Marc Autret <autret_m@epita.fr>
+
+ * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
+ * src/vcg.c (output_node): Fix.
+ * src/vcg.h: Cleanup.
+ * src/print_graph.c: Add comments.
+ (node_output_size): New global variable. Simplify the formatting of
+ the VCG graph output.
+ (print_actions): Unused code is now used. It notifies the final state
+ and no action states in the VCG graph. It also give the reduce actions.
+ The `shift and goto' edges are red and the `go to state' edges are
+ blue.
+ Get the current node name and node_obstack by argument.
+ (node_obstack): New variable.
+ (print_state): Manage node_obstack.
+ (print_core): Use node_obstack given by argument.
+ A node is not only computed here but in print_actions also.
+ (print_graph): CPP out useless code instead of commenting it.
+
+2001-08-07 Pascal Bart <pascal.bart@epita.fr>
+
+ * tests/atconfig.in (CPPFLAGS): Fix.
+
+2001-08-07 Akim Demaille <akim@epita.fr>
+
+ * src/print_graph.c (quote): New.
+ (print_core): Use it.
+
+2001-08-06 Akim Demaille <akim@epita.fr>, Marc Autret <autret_m@epita.fr>
+
+ * src/vcg.c (complain.h): Include it.
+ Unepitaize `return' invocations.
+ [NDEBUG] (main): Remove.
+ * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
+ * src/files.c (open_files): Initialize graph_obstack.
+ * src/print_graph.c (print_actions): CPP out useless code.
+ (print_core): Don't output the last `\n' in labels.
+ Use `quote'.
+ * src/files.c (output_files): Output the VCG file.
+ * src/main.c (main): Invoke print_graph ();
+
+2001-08-06 Marc Autret <autret_m@epita.fr>
+
+ Automaton VCG graph output.
+ Using option ``-g'' or long option ``--graph'', you can generate
+ a gram_filename.vcg file containing a VCG description of the LALR (1)
+ automaton of your grammar.
+
+ * src/main.c: Call to print_graph() function.
+ * src/getargs.h: Update.
+ * src/getargs.c (options): Update to catch `-g' and `--graph' options.
+ (graph_flag): New flag.
+ (longopts): Update.
+ (getargs): Add case `g'.
+ * src/files.c (graph_obstack): New obstack struct.
+ (open_files): Initialize new obstack.
+ (output_files): Saves graph_obstack if required.
+ * src/files.h (graph_obstack): New extern declaration.
+ * src/Makefile.am: Add new source files.
+
+2001-08-06 Marc Autret <autret_m@epita.fr>
+
+ * src/print_graph.c, src/print_graph.h (graph): New.
+ * src/vcg.h: New file.
+ * src/vcg.c: New file, VCG graph handling.
+
+2001-08-06 Marc Autret <autret_m@epita.fr>
+
+ Add of %source_extension and %header_extension which specify
+ the source or/and the header output file extension.
+
+ * src/files.c (compute_base_names): Remove initialisation of
+ src_extension and header_extension.
+ (compute_exts_from_gf): Update.
+ (compute_exts_from_src): Update.
+ (output_files): Update.
+ * src/reader.c (parse_header_extension_decl): New.
+ (parse_source_extension_decl): New.
+ (read_declarations): New case statements for the new tokens.
+ * src/lex.c (percent_table): Add entries for %source_extension
+ and %header_extension.
+ * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
+
+2001-08-06 Marc Autret <autret_m@epita.fr>
+
+ * configure.in: Bump to 1.28c.
+ * doc/bison.texinfo: Texinfo thingies.
+
+2001-08-04 Pascal Bart <pascal.bart@epita.fr>
+
+ * tests/atconfig.in (CPPFLAGS): Add.
+ * tests/calc.at (AT_CHECK): Use CPPFLAGS.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ Version 1.28b.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ * tests/Makefile.am (check-local): Ship testsuite.
+ * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
+ Include `string.h'.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Try using -Wformat when compiling.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Bump to 1.28b.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ * src/complain.c: Adjust strerror_r portability issues.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ Version 1.28a.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c, src/getarg.h (skeleton)): Constify.
+ * src/lex.c (literalchar): Avoid name clashes on `buf'.
+ * src/getargs.c: Include complain.h.
+ * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
+ * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (readgram): Display hidden chars in error messages.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ Update to gettext 0.10.39.
+
+2001-08-03 Akim Demaille <akim@epita.fr>
+
+ * lib/strspn.c: New.
+
+2001-08-01 Marc Autret <autret_m@epita.fr>
+
+ * doc/bison.texinfo: Update.
+ * doc/bison.1 (mandoc): Update.
+ * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
+ * src/files.c: Support output files extensions computing.
+ (src_extension): New static variable.
+ (header_extension): New static variable.
+ (tr): New function.
+ (get_extension_index): New function, gets the index of an extension
+ filename in a string.
+ (compute_exts_from_gf): New function, computes extensions from the
+ grammar file extension.
+ (compute_exts_from_src): New functions, computes extensions from the
+ C source file extension, file given by ``-o'' option.
+ (compute_base_names): Update.
+ (output_files): Update.
+
+2001-08-01 Robert Anisko <anisko_r@epita.fr>
+
+ * doc/bison.texi: Document @$.
+ (Locations): New section.
+
+2001-07-18 Akim Demaille <akim@epita.fr>
+
+ * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
+ * config/prev-version.txt, config/move-if-change: New.
+ * Makefile.am: Adjust.
+
+2001-07-08 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/bison.simple (yyparse): Suppress warning `comparaison
+ between signed and unsigned'.
+
+2001-07-05 Pascal Bart <pascal.bart@epita.fr>
+
+ * src/getargs.h (raw_flag): Remove.
+ * src/getargs.c: Die on `-r'/`--raw'.
+ * src/lex.c (parse_percent_token): Die on `%raw'.
+ * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
+ * tests/calc.at: Suppress test with option `--raw'.
+
+2001-07-14 Akim Demaille <akim@epita.fr>
+
+ * config/: New.
+ * configure.in: Require Autoconf 2.50.
+ Update to gettext 0.10.38.
+
+2001-03-16 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: ANSIfy the examples.
+
+2001-03-16 Akim Demaille <akim@epita.fr>
+
+ * getargs.c (skeleton): New variable.
+ (longopts): --skeleton is a new option.
+ (shortopts, getargs): -S is a new option.
+ * getargs.h: Declare skeleton.
+ * output.c (output_parser): Use it.
+
+2001-03-16 Akim Demaille <akim@epita.fr>
+
+ * m4/strerror_r.m4: New.
+ * m4/error.m4: Run AC_FUNC_STRERROR_R.
+ * lib/error.h, lib/error.c: Update.
+
+2001-03-16 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (longopts): Clean up.
+
+2001-02-21 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (gensym): `gensym_count' is your own.
+ Use a static buf to create the symbol name, as token_buffer is no
+ longer a buffer.
+
+2001-02-08 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (conflict_report): Be sure not to append to res
+ between two calls, which could happen if both first sprintf were
+ skipped, but not the first cp += strlen.
+
+2001-02-08 Akim Demaille <akim@epita.fr>
+
+ * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
+ New, from fileutils 4.0.37.
+ * configure.in: Require Autoconf 2.49c. I took some time before
+ making this decision. This is the only way out for portability
+ issues in Bison, it would mean way too much duplicate effort to
+ import in Bison features implemented in 2.49c since 2.13.
+ AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
+
+2001-02-02 Akim Demaille <akim@epita.fr>
+
+ * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
+ * lib/xalloc.h, lib/xmalloc.c: Update.
+
+2001-01-19 Akim Demaille <akim@epita.fr>
+
+ Get rid of the ad hoc handling of token_buffer in the scanner: use
+ the obstacks.
+
+ * src/lex.c (token_obstack): New.
+ (init_lex): Initialize it. No longer call...
+ (grow_token_buffer): this. Remove it.
+ Adjust all the places which used it to use the obstack.
+
+2001-01-19 Akim Demaille <akim@epita.fr>
+
+ * src/lex.h: Rename all the tokens:
+ s/\bENDFILE\b/tok_eof/g;
+ s/\bIDENTIFIER\b/tok_identifier/g;
+ etc.
+ Let them be enums, not #define, to ease debugging.
+ Adjust all the code.
+
+2001-01-18 Akim Demaille <akim@epita.fr>
+
+ * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
+ * src/lex.c (maxtoken, grow_token_buffer): Static.
+
+2001-01-18 Akim Demaille <akim@epita.fr>
+
+ Since we now use obstacks, more % directives can be enabled.
+
+ * src/lex.c (percent_table): Also accept `%yacc',
+ `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
+ `%debug'.
+ Handle the actions for `%semantic_parser' and `%pure_parser' here,
+ instead of returning a token.
+ * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
+ * src/reader.c (read_declarations): Adjust.
+ * src/files.c (open_files): Don't call `compute_base_names', don't
+ compute `attrsfile' since they depend upon data which might be
+ *in* the input file now.
+ (output_files): Do it here.
+ * src/output.c (output_headers): Document the fact that this patch
+ introduces a guaranteed SEGV for semantic parsers.
+ * doc/bison.texinfo: Document them.
+ * tests/suite.at: Exercise these %options.
+
+2000-12-20 Akim Demaille <akim@epita.fr>
+
+ Also handle the output file (--verbose) with obstacks.
+
+ * files.c (foutput): Remove.
+ (output_obstack): New.
+ Adjust all dependencies.
+ * src/conflicts.c: Return a string.
+ * src/system.h (obstack_grow_string): Rename as...
+ (obstack_sgrow): this. Be ready to work with non literals.
+ (obstack_fgrow4): New.
+
+2000-12-20 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (open_files): Fix the computation of short_base_name
+ in the case of `-o foo.tab.c'.
+
+2000-12-20 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
+ (copy_dollar): Now that everything uses obstacks, get rid of the
+ FILE * parameters.
+
+2000-12-20 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (open_files): Actually the `.output' file is based
+ on the short_base_name, not base_name.
+ * tests/suite.at (Checking output file names): Adjust.
+
+2000-12-20 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1: Remove, we now use directly...
+ * src/bison.simple: this.
+ * src/Makefile.am: Use pkgdata instead of data.
+
+2000-12-20 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (guard_obstack): New.
+ (open_files): Initialize it.
+ (output_files): Dump it...
+ * src/files.h: Export it.
+ * src/reader.c (copy_guard): Use it.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (outfile, defsfile, actfile): Removed as global
+ vars.
+ (open_files): Don't compute them.
+ (output_files): Adjust.
+ (base_name, short_base_name): Be global.
+ Adjust dependencies.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (strsuffix): New.
+ (stringappend): Be just like strcat but allocate.
+ (base_names): Eve out from open_files.
+ Try to simplify the rather hairy computation of base_name and
+ short_base_name.
+ (open_files): Use it.
+ * tests/suite.at (Checking output file names): New test.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ * src/system.h (obstack_grow_literal_string): Rename as...
+ (obstack_grow_string): this.
+ * src/output.c (output_parser): Recognize `%% actions' instead of
+ `$'.
+ * src/bison.s1: s/$/%% actions/.
+ * src/bison.hairy: Likewise.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_parser): Compute the `#line' lines when
+ there are.
+ * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
+ Suggested by Hans Aberg.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ Let the handling of the skeleton files be local to the procedures
+ that use it.
+
+ * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
+ longer static.
+ (fparser, open_extra_files): Remove.
+ (open_files, output_files): Don't take care of fparser.
+ * src/files.h: Adjust.
+ * src/output.c (output_parser): Open and close the file to the
+ skeleton.
+ * src/reader.c (read_declarations): When %semantic_parser, open
+ fguard.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
+ * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (open_files): Yipee! We no longer need all the code
+ looking for `/tmp' since we have no tmp file.
+
+2000-12-19 Akim Demaille <akim@epita.fr>
+
+ * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
+ New macros.
+ * src/files.c (open_files): Less dependency on MSDOS etc.
+
+2000-12-14 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1 (YYLLOC_DEFAULT): New macro.
+ Provide a default definition.
+ Use it when executing the default @ action.
+ * src/reader.c (reader_output_yylsp): No longer include
+ `timestamp' and `text' in the default YYLTYPE.
+
+2000-12-12 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_definition, parse_union_decl, copy_action)
+ (copy_guard): Quote the file names.
+ Reported by Laurent Mascherpa.
+
+2000-12-12 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_headers, output_program, output): Be sure
+ to escape special characters when outputting filenames.
+ (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
+ (output_headers): Don't depend on them, Use ACTSTR.
+
+2000-11-17 Akim Demaille <akim@epita.fr>
+
+ * lib/obstack.h: Formatting changes.
+ (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
+ prevents type checking.
+ (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
+ cast the value to (void *): assigning a `foo *' to a `void *'
+ variable is valid.
+ (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
+ * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
+ append characters.
+
+2000-11-17 Akim Demaille <akim@epita.fr>
+
+ * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
+ as...
+ (suite.m4, regression.m4, calc.m4): these.
+ * tests/atgeneral.m4: Update from CVS Autoconf.
+
+2000-11-17 Akim Demaille <akim@epita.fr>
+
+ * tests/regression.m4 (%union and --defines): New test,
+ demonstrating a current bug in the obstack implementation.
+
+2000-11-17 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
+ macros.
+ Use them to declare the variables which are global or local to
+ `yyparse'.
+
+2000-11-17 Akim Demaille <akim@epita.fr>
+
+ * acconfig.h: Remove, no longer used.
+
+2000-11-07 Akim Demaille <akim@epita.fr>
+
+ * src: s/Copyright (C)/Copyright/g.
+
+2000-11-07 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
+ defining.
+ * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
+
+2000-11-07 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
+ Merge in a single CPP if/else.
+
+2000-11-07 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output): Remove useless variables.
+ * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
+ argument `data' for consistency with the prototypes.
+ Qualify it `const'.
+ (obstack_copy, obstack_copy0): Rename the second argument as
+ `address' for consistency. Qualify it `const'.
+ * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
+ (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
+ `const' their input argument (`data' or `address').
+ Adjust the corresponding macros to include `const' in casts.
+
+2000-11-03 Akim Demaille <akim@epita.fr>
+
+ * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
+ s/PFILE1/BISON_HAIRY/.
+ Adjust dependencies.
+
+2000-11-03 Akim Demaille <akim@epita.fr>
+
+ For some reason, this was not applied.
+
+ * src/files.c [VMS]: No longer include `ssdef.h', no longer define
+ `unlink': it's no longer used.
+
+2000-11-03 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (skeleton_find): New function, eved out of...
+ (open_files, open_extra_files): here.
+
+2000-11-03 Akim Demaille <akim@epita.fr>
+
+ Don't use `atexit'.
+
+ * src/files.c (obstack_save): New function.
+ (done): Rename as...
+ (output_files): this.
+ Use `obstack_save'.
+ * src/main.c (main): Don't use `atexit' to register `done', since
+ it no longer has to remove tmp files, just call `output_files'
+ when there are no errors.
+
+2000-11-02 Akim Demaille <akim@epita.fr>
+
+ * src/files.c [VMS]: No longer include `ssdef.h', no longer define
+ `unlink': it's no longer used.
+ * src/files.h: Formatting changes.
+
+2000-11-02 Akim Demaille <akim@epita.fr>
+
+ Remove the last uses of mktemp and unlink/delete.
+
+ * src/files.c (fdefines, ftable): Removed.
+ (defines_ostack, table_obstack): New.
+ Adjust dependencies of the former into uses of the latter.
+ * src/output.c (output_short_or_char_table, output_short_table):
+ Convert to using obstacks.
+ * src/reader.c (copy_comment2): Accept one FILE * and two
+ obstacks.
+ (output_token_defines, reader_output_yylsp): Use obstacks.
+ * src/system.h (obstack_fgrow3): New.
+ * po/POTFILES.in: Adjust.
+
+2000-11-01 Akim Demaille <akim@epita.fr>
+
+ Change each use of `fattrs' into a use of `attrs_obstack'.
+
+ * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
+ * src/files.c (fattrs): Remove.
+ (attrs_obstack): New.
+ Adjust all dependencies.
+ (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
+
+2000-11-01 Akim Demaille <akim@epita.fr>
+
+ Introduce obstacks.
+ Change each use of `faction' into a use of `action_obstack'.
+
+ * lib/obstack.h, lib/obstack.c: New files.
+ * src/files.c (faction): Remove.
+ (action_obstack): New.
+ Adjust all dependencies.
+
+2000-10-20 Akim Demaille <akim@epita.fr>
+
+ * lib/quote.h (PARAMS): New macro. Use it.
+
+2000-10-16 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_short_or_char_table): New function.
+ (output_short_table, output_token_translations): Use it.
+ (goto_actions): Use output_short_table.
+
+2000-10-16 Akim Demaille <akim@epita.fr>
+
+ * src/symtab.c (bucket_new): New function.
+ (getsym): Use it.
+
+ * src/output.c (output_short_table): New argument to display the
+ comment associated with the table.
+ Adjust dependencies.
+ (output_gram): Use it.
+ (output_rule_data): Nicer output layout for YYTNAME.
+
+2000-10-16 Akim Demaille <akim@epita.fr>
+
+ * src/lex.c (read_typename): New function.
+ (lex): Use it.
+ * src/reader.c (copy_dollar): Likewise.
+
+2000-10-16 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_comment2): Expect the input stream to be on
+ the `/' which is suspected to open a comment, instead of being
+ called after `//' or `/*' was read.
+ (copy_comment, copy_definition, parse_union_decl, copy_action)
+ (copy_guard): Adjust.
+
+2000-10-16 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_expect_decl): Use `skip_white_space' and
+ `read_signed_integer'.
+
+2000-10-16 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_dollar): New function.
+ (copy_guard, copy_action): Use it.
+
+2000-10-16 Akim Demaille <akim@epita.fr>
+
+ * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
+ * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
+ New files, from Fileutils 4.0.27.
+ * src/main.c (printable_version): Remove.
+ * src/lex.c, src/reader.c: Use `quote'.
+
+2000-10-04 Akim Demaille <akim@epita.fr>
+
+ * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
+
+2000-10-04 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Various typos spotted by Neil Booth.
+
+2000-10-04 Akim Demaille <akim@epita.fr>
+
+ When a literal string is used to define two different tokens,
+ `bison -v' segfaults.
+ Reported by Piotr Gackiewicz, and fixed by Neil Booth.
+
+ * tests/regression.m4: New file.
+ Include the core of the sample provided by Piotr Gackiewicz.
+ * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
+ properly.
+
+2000-10-04 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (parse_expect_decl): Keep `count' within the size
+ of `buffer'.
+ From Neil Booth.
+
+2000-10-02 Paul Eggert <eggert@twinsun.com>
+
+ * bison.s1 (yyparse): Assign the default value
+ unconditionally, to avoid a GCC warning and make the parser a
+ tad smaller.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (getargs): Don't dump `--help' on unrecognized
+ options.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/derives.c, src/print.c, src/reduce.c: To ease the
+ translation, move some `\n' out of the translated strings.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ The location tracking mechanism is precious for parse error
+ messages. Nevertheless, it is enabled only when `@n' is used in
+ the grammar, which is a different issue (you can use it in error
+ message, but not in the grammar per se). Therefore, there should
+ be another means to enable it.
+
+ * src/getargs.c (getargs): Support `--locations'.
+ (usage): Report it.
+ * src/getargs.h (locationsflag): Export it.
+ * src/lex.c (percent_table): Support `%locations'.
+ * src/reader.c (yylsp_needed): Remove this variable, now replaced
+ with `locationsflag'.
+ * doc/bison.texinfo: Document `--locations' and `%locations'.
+ Sort the options.
+ * tests/calc.m4: Test it.
+
+ For regularity of the names, replace each
+ (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
+ (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
+ In addition replace each `flag' with `_flag'.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ Also test parse error messages, including with YYERROR_VERBOSE.
+
+ * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
+ associative).
+ Use it to check the computations.
+ Use it to check `nonassoc' is honored.
+ (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
+ `--yyerror-verbose'.
+ (_AT_CHECK_CALC): Adjust to this option.
+ (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ Test also `--verbose', `--defines' and `--name-prefix'. Testing
+ the latter demonstrates a flaw in the handling of non debugging
+ parsers introduced by myself on 2000-03-16: `#define yydebug 0'
+ was used in order to simplify:
+
+ #if YYDEBUG
+ if (yydebug)
+ {
+ ...
+ }
+ #endif
+
+ into
+
+ if (yydebug)
+ {
+ ...
+ }
+
+ unfortunately this leads to a CPP conflict when
+ `--name-prefix=foo' is used since it produces `#define yydebug
+ foodebug'.
+
+ * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
+ (YYDPRINTF): New macro.
+ Spread its use.
+ * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
+ the bison options.
+ Also test `--verbose', `--defines' and `--name-prefix'.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ Improve the readability of the produced parsers.
+
+ * src/bison.s1: Formatting changes.
+ Improve the comment related to the `$' mark.
+ (yydefault): Don't fall through to `yyresume': `goto' there.
+ * src/output.c (output_parser): When the `$' is met, skip the end
+ of its line.
+ New variable, `number_of_dollar_signs', to check there's exactly
+ one `$' in the parser skeleton.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * lib/xstrdup.c: New file, from the fileutils.
+ * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
+ (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
+ instead of strlen + xmalloc + strcpy.
+ * src/symtab.c (copys): Remove, use xstrdup instead.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/gram.h (associativity): New enum type which replaces the
+ former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
+ `right_assoc', `left_assoc' and `non_assoc'.
+ Adjust all dependencies.
+ * src/reader.c: Formatting changes.
+ (LTYPESTR): Don't define it, use it as a literal in
+ `reader_output_yylsp'.
+ * src/symtab.h (symbol_class): New enum type which replaces the
+ former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
+ `sunknown', `stoken and `snterm'.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (fixed_outfiles): Rename as...
+ (yaccflag): for consistency and accuracy.
+ Adjust dependencies.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ Use the more standard files `xalloc.h' and `xmalloc.c' instead of
+ Bison's `allocate.c' and `alloc.h'. This patch was surprisingly
+ difficult and introduced a lot of core dump. It turns out that
+ Bison used an implementation of `xmalloc' based on `calloc', and
+ at various places it does depend upon the initialization to 0. I
+ have not tried to isolate the pertinent places, and all the former
+ calls to Bison's `xmalloc' are now using `XCALLOC'. Someday,
+ someone should address this issue.
+
+ * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
+ * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
+ files.
+ Adjust dependencies.
+ * src/warshall.h: New file.
+ Propagate.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ Various anti-`extern in *.c' changes.
+
+ * src/system.h: Include `assert.h'.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/state.h (nstates, final_state, first_state, first_shift)
+ (first_reduction): Move their exportation from here...
+ * src/LR0.h: to here.
+ Adjust dependencies.
+ * src/getargs.c (statisticsflag): New variable.
+ Add support for `--statistics'.
+ Adjust dependencies.
+
+ Remove a lot of now useless `extern' statements in most files.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/LR0.h: New file.
+ Propagate its use.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/print.h: New file.
+ Propagate its use.
+ * src/print.c: Formatting and ordering changes.
+ (verbose, terse): Replace with...
+ (print_results): this new function.
+ Adjust dependencies.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/conflicts.c (conflict_report): New function.
+ (conflict_log, verbose_conflict_log): Replace with...
+ (print_conflicts): this function.
+ Adjust dependencies.
+ * src/conflicts.h: New file.
+ Propagate its inclusion.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/nullable.h: New file.
+ Propagate its inclusion.
+ * src/nullable.c: Formatting changes.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/reduce.h: New file.
+ Propagate its inclusion.
+ * src/reduce.c: Topological sort and other formatting changes.
+ (bool, TRUE, FALSE): Move their definition to...
+ * src/system.h: here.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/files.c: Formatting changes.
+ (tryopen, tryclose, openfiles): Rename as...
+ (xfopen, xfclose, open_files): this.
+ (stringappend): static.
+ * src/files.h: Complete the list of exported symbols.
+ Propagate its use.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/reader.h: New file.
+ Propagate its use instead of tedious list of `extern' and
+ prototypes.
+ * src/reader.c: Formatting changes, topological sort,
+ s/register//.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/lex.h: Prototype `lex.c' exported functions.
+ * src/reader.c: Adjust.
+ * src/lex.c: Formatting changes.
+ (safegetc): Rename as...
+ (xgetc): this.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/lalr.h: New file.
+ Propagate its inclusion instead of prototypes and `extern'.
+ * src/lalr.c: Formatting changes, topological sorting etc.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (token_actions): Introduce a temporary array,
+ YYDEFACT, that makes it possible for this function to use
+ output_short_table.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ `user_toknums' is output as a `short[]' in `output.c', while it is
+ defined as a `int[]' in `reader.c'. For consistency with the
+ other output tables, `user_toknums' is now defined as a table of
+ shorts.
+
+ * src/reader.c (user_toknums): Be a short table instead of an int
+ table.
+ Adjust dependencies.
+
+ Factor the short table outputs.
+
+ * src/output.c (output_short_table): New function.
+ * src/output.c (output_gram, output_stos, output_rule_data)
+ (output_base, output_table, output_check): Use it.
+
+2000-10-02 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output): Topological sort of the functions, in
+ order to get rid of the `static' prototypes.
+ No longer use `register'.
+ * src/output.h: New file.
+ Propagate its inclusion in files explicitly prototyping functions
+ from output.c.
+
+2000-09-21 Akim Demaille <akim@epita.fr>
+
+ * src/atgeneral.m4: Update from Autoconf.
+
+2000-09-21 Akim Demaille <akim@epita.fr>
+
+ * src/closure.h: New file.
+ * src/closure.c: Formatting changes, topological sort over the
+ functions, use of closure.h.
+ (initialize_closure, finalize_closure): Rename as...
+ (new_closure, free_closure): these. Adjust dependencies.
+ * src/LR0.c: Formatting changes, topological sort, use of
+ cloture.h.
+ (initialize_states): Rename as...
+ (new_states): this.
+ * src/Makefile.am (noinst_HEADERS): Adjust.
+
+2000-09-20 Akim Demaille <akim@epita.fr>
+
+ * src/acconfig.h: Don't protect config.h against multiple
+ inclusion.
+ Don't define PARAMS.
+ * src/system.h: Define PARAMS.
+ Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
+ purpose of config.h. system.h must not try to fix wrong
+ definitions in config.h.
+
+2000-09-20 Akim Demaille <akim@epita.fr>
+
+ * src/derives.h: New file.
+ * src/main.c, src/derives.h: Use it.
+ Formatting changes.
+ * src/Makefile.am (noinst_HEADERS): Adjust.
+
+2000-09-20 Akim Demaille <akim@epita.fr>
+
+ * tests/atgeneral.m4: Update from Autoconf.
+ * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
+ (AT_CHECK_CALC): New macros.
+ Use these macros to test bison with options `', `--raw',
+ `--debug', `--yacc', `--yacc --debug'.
+
+2000-09-19 Akim Demaille <akim@epita.fr>
+
+ * src/output.c: Formatting changes.
+ * src/machine.h: Remove, leaving its contents in...
+ * src/system.h: here.
+ Include stdio.h.
+ Adjust all dependencies on stdio.h and machine.h.
+ * src/getargs.h: New file.
+ Let all `extern' declarations about getargs.c be replaced with
+ inclusion of `getargs.h'.
+ * src/Makefile.am (noinst_HEADERS): Adjust.
+
+ * tests/calc.m4 (yyin): Be initialized in main, not on the global
+ scope.
+ (yyerror): Returns void, not int.
+ * doc/bison.texinfo: Formatting changes.
+
+2000-09-19 Akim Demaille <akim@epita.fr>
+
+ * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
+ portable.
+
+2000-09-18 Akim Demaille <akim@epita.fr>
+
+ * configure.in: Append WARNING_CFLAGS to CFLAGS.
+ * src/Makefile.am (INCLUDES): Don't.
+ Be ready to fetch headers in lib/.
+
+2000-09-18 Akim Demaille <akim@epita.fr>
+
+ * doc/bison.texinfo: Update the copyright.
+ ANSIfy and GNUify the examples.
+ Remove the old menu.
+
+2000-09-18 Akim Demaille <akim@epita.fr>
+
+ First set of tests: use the `calc' example from the documentation.
+
+ * src/bison.s1 (yyparse): Condition the code using `yytname' which
+ is defined only when YYDEBUG is.
+ * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
+ * src/files.c (tryopen, tryclose): Formatting changes.
+ Move to the top and be static.
+ * src/reader.c (read_signed_integer): Likewise.
+ * tests/calc.m4: New file.
+ * Makefile.am, suite.m4: Adjust.
+ * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
+
+2000-09-18 Akim Demaille <akim@epita.fr>
+
+ Add support for an Autotest test suite for Bison.
+
+ * m4/m4.m4, m4/atconfig.m4: New files.
+ * m4/Makefile.am (EXTRA_DIST): Adjust.
+ * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
+ files.
+ * src/getargs.c: Display a more standard --version message.
+ * src/reader.c (reader): Formatting changes.
+ No longer depend upon VERSION_STRING.
+ * configure.in: No longer use `dnl'.
+ Set up the test suite and the new directory `tests/.
+ (VERSION_STRING): Remove.
+
+2000-04-14 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_comment2): New function, same as former
+ `copy_comment', but outputs into two FILE *.
+ (copy_comment): Use it.
+ (parse_union_decl): Use it.
+ (get_type, parse_start_decl): Use the same `invalid' message.
+ (parse_start_decl, parse_union_decl): Use the same `multiple'
+ message.
+ (parse_union_decl, copy_guard, copy_action): Use the same
+ `unmatched' message.
+ * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
+
+2000-03-31 Akim Demaille <akim@epita.fr>
+
+ * src/files.c (tryopen, tryclose): Move to the top.
+ Be static.
+
+2000-03-31 Akim Demaille <akim@epita.fr>
+
+ * src/main.c (main): Don't call `done', exit does it.
+
+2000-03-31 Akim Demaille <akim@epita.fr>
+
+ * allocate.c: s/return (foo)/return foo/.
+ * lalr.c: Likewise.
+ * LR0.c: Likewise.
+ * output.c: Likewise.
+ * reader.c: Likewise.
+ * symtab.c: Likewise.
+ * vmsgetargs.c: Likewise.
+
+2000-03-31 Akim Demaille <akim@epita.fr>
+
+ Clean up the error reporting functions.
+
+ * src/report.c: New file.
+ * src/report.h: Likewise.
+ * src/Makefile.am: Adjust.
+ * m4/error.m4: New file.
+ * m4/Makefile.am: Adjust.
+ * configure.in (jm_PREREQ_ERROR): Call it.
+ * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
+ Remove.
+ (fatal, fatals): Remove. All callers use complain.c::fatal.
+ (warn, warni, warns, warnss, warnss): Remove. All callers use
+ complain.c::complain.
+ (toomany): Remove, use fatal instead.
+ * src/files.c (done): No argument, use complain_message_count.
+ * src/main.c (main): Register `done' to `atexit'.
+
+ * src/getargs.c (usage): More `fputs', less `fprintf'.
+
+2000-03-28 Akim Demaille <akim@epita.fr>
+
+ * lib/: New directory.
+ * Makefile.am (SUBDIRS): Adjust.
+ * configure.in: Adjust.
+ (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
+ useless.
+ * src/alloca.c: Moved to lib/.
+ * src/getopt.c: Likewise.
+ * src/getopt1.c: Likewise.
+ * src/getopt.h: Likewise.
+ * src/ansi2knr.c: Likewise.
+ * src/ansi2knr.1: Likewise.
+ * src/Makefile.am: Adjust.
+ * lib/Makefile.am: New file.
+
+2000-03-28 Akim Demaille <akim@epita.fr>
+
+ * src/getargs.c (usage): Refresh the help message.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/getopt1.c: Updated from textutils 2.0e
+ * src/getopt.c: Likewise.
+ * src/getopt.h: Likewise.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/Makefile.am (bison.simple): Fix the awk program: quote only
+ the file name, not the whole `#line LINE FILE'.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ On syntax errors, report the token on which we choked.
+
+ * src/bison.s1 (yyparse): In the label yyerrlab, when
+ YYERROR_VERBOSE, add yychar in msg.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_at): New function.
+ (copy_guard): Use it.
+ (copy_action): Use it.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ Be kind to translators, save some useless translations.
+
+ * src/main.c (banner): New function.
+ (fatal_banner): Use it.
+ (warn_banner): Use it.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_definition): Use copy_string and
+ copy_comment. Removed now unused `match', `ended',
+ `cplus_comment'.
+ (copy_comment, copy_string): Moved, to be visible from
+ copy_definition.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_string): Declare `static inline'. No
+ problems with inline, since it is checked by configure.
+ (copy_comment): Likewise.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (packsymbols): Formatting changes.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_comment): New function, factored out from:
+ (copy_action): Use it. Removed now unused `match', `ended',
+ `cplus_comment'.
+ (copy_guard): Likewise.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/reader.c (copy_string): New function, factored out from:
+ (copy_action): Use it.
+ (copy_guard): Likewise.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ Change the handling of @s so that they behave exactly like $s.
+ There is now a pseudo variable @$ (readble and writable), location
+ of the lhs of the rule (by default ranging from the location of
+ the first symbol of the rhs, to the location of the last symbol,
+ or, if the rhs is empty, YYLLOC).
+
+ * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
+ yyval.
+ (yyparse): When providing a default semantic action, provide a
+ default location action.
+ (after the $): No longer change `*YYLSP', just stack YYLOC the
+ same way you stack YYVAL.
+ * src/reader.c (read_declarations): Use warns.
+ (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
+ (copy_action, case '@'): Likewise.
+ Use a standard error message, to save useless work from
+ translators.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1: Formatting and cosmetics changes.
+ * src/reader.c: Likewise.
+ Update the Copyright notice.
+
+2000-03-17 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1 (#line): All set to `#line' only, since the
+ Makefile now handles them.
+
+2000-03-16 Akim Demaille <akim@epita.fr>
+
+ * src/output.c (output_rule_data): Output the documentation of
+ some of the tables.
+ (Copyright notice): Update.
+ Formatting changes.
+
+2000-03-16 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1 [!YYDEBUG]: Define yydebug to 0. This allows to
+ remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
+ One `#if YYDEBUG' remains, since it uses variables which are
+ defined only if `YYDEBUG != 0'.
+
+2000-03-16 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
+ and related variables so that the similarities are highlighted.
+
+2000-03-16 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1: Properly indent CPP directives.
+
+2000-03-16 Akim Demaille <akim@epita.fr>
+
+ * src/bison.s1: Properly indent the `alloca' CPP section.
+
+2000-03-16 Akim Demaille <akim@epita.fr>
+
+ Do not hard code values of directories in `configure.in'.
+ Update the `configure' tool chain.
+
+ * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
+ src/makefile.am.
+ (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
+ (AC_OUTPUT): Add m4/Makefile.
+ Bump to bison 1.28a, 1.29 has never been released.
+ * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
+ handled via src/Makefile.am.
+ (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
+ HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
+ autoheader.
+ * Makefile.am (SUBDIRS): Add m4.
+ (ACLOCAL_AM_FLAGS): New variable.
+ (AUTOMAKE_OPTIONS): Add check-news.
+ * src/Makefile.am (bison.simple): Use awk to replace #line lines with
+ the proper line number and file name.
+ (DEFS): Propagate the location of bison library files and of the
+ locale files.
+ (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
+ builddir.
+ * acinclude.m4: Remove, replaced by the directory m4.
+ * m4/Makefile.am (EXTRA_DIST): New variable.
+ * m4/gettext.m4: New file, from the fileutils.
+ * m4/lcmessage.m4: Likewise
+ * m4/progtest.m4: Likewise.
+ * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
+
+2000-03-10 Akim Demaille <akim@epita.fr>
+
+ * src/closure.c:
+ Formatting changes of various comments.
+ Respect the GNU coding standards at various places.
+ Don't use `_()' when no translation is needed.
+
+1999-12-13 Jesse Thilo <jthilo@gnu.org>
+
+ * src/files.c:
+ OS/2 honors TMPDIR environment variable.
+
+1999-12-13 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/bison.texinfo: Tweaked spelling and grammar.
+ Updated ISBN.
+ Removed reference to price of printed copy.
+ Mention BISON_SIMPLE and BISON_HAIRY.
+
+1999-12-13 Jesse Thilo <jthilo@gnu.org>
+
+ * configure.in, NEWS:
+ Bison 1.29 released.
+
+1999-10-27 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
+ Added reference card.
+
+1999-07-26 Jesse Thilo <jthilo@gnu.org>
+
+ * po/ru.po: Added Russian translation.
+
+1999-07-26 Jesse Thilo <jthilo@gnu.org>
+
+ * configure.in: Added Russian translation.
+
+1999-07-06 Jesse Thilo <jthilo@gnu.org>
+
+ * configure.in, NEWS, README:
+ Released version 1.28.
+
+1999-06-14 Jesse Thilo <jthilo@gnu.org>
+
+ * src/system.h:
+ Squashed redefinition warning on some systems.
+
+ * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
+ Have configure build version string instead of relying on ANSI string
+ concatentation.
+
+1999-06-14 Jesse Thilo <jthilo@gnu.org>
+
+ * po/POTFILES.in: Got rid of version.c.
+
+1999-06-14 Jesse Thilo <jthilo@gnu.org>
+
+ * acconfig.h, configure.in:
+ Have configure build version string instead of relying on ANSI string
+ concatentation.
+
+1999-06-08 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/bison.1:
+ Dropped mention of `+' for long-named options.
+
+1999-05-30 Jesse Thilo <jthilo@gnu.org>
+
+ * src/files.c: Added <unistd.h> for unlink().
+
+ * src/Makefile.am, src/system.h:
+ I18n fixes.
+
+1999-05-30 Jesse Thilo <jthilo@gnu.org>
+
+ * README: Added a FAQ list.
+
+ * configure.in, acconfig.h:
+ I18n fixes.
+
+1999-05-30 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/FAQ, doc/Makefile.am:
+ Added a FAQ list.
+
+1999-05-19 Jesse Thilo <jthilo@gnu.org>
+
+ * src/alloc.h, src/symtab.h, src/version.c:
+ Protected inclusion of "config.h" with HAVE_CONFIG_H.
+
+1999-04-18 Jesse Thilo <jthilo@gnu.org>
+
+ * src/.cvsignore, src/Makefile.am:
+ Reorganized: sources in `src', documentation in `doc'.
+
+ * src/lex.c (literalchar):
+ fixed the code for escaping double quotes (thanks
+ Jonathan Czisny.)
+
+1999-04-18 Jesse Thilo <jthilo@gnu.org>
+
+ * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
+ Adjusted paths to reflect directory reorganization.
+
+1999-04-18 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/.cvsignore, doc/Makefile.am:
+ Reorganized: sources in `src', documentation in `doc'.
+
+1999-04-18 Jesse Thilo <jthilo@gnu.org>
+
+ * configure.in:
+ Updated AC_INIT file to reflect directory reorganization.
+
+ * configure.in, .cvsignore, Makefile.am, POTFILES.in:
+ Reorganized: sources in `src', documentation in `doc'.
+
+1999-04-13 Jesse Thilo <jthilo@gnu.org>
+
+ * src/allocate.c:
+ Don't declare calloc() and realloc() if not necessary.
+
+1999-04-13 Jesse Thilo <jthilo@gnu.org>
+
+ * configure.in, acconfig.h, acinclude.m4:
+ Don't declare calloc() and realloc() if not necessary.
+
+1999-03-23 Jesse Thilo <jthilo@gnu.org>
+
+ * po/.cvsignore: Added i18n support.
+
+1999-03-23 Jesse Thilo <jthilo@gnu.org>
+
+ * acconfig.h, configure.in, Makefile.am:
+ Added i18n support.
+
+1999-03-22 Jesse Thilo <jthilo@gnu.org>
+
+ * src/bison.s1: Fixed #line numbers.
+
+1999-03-15 Jesse Thilo <jthilo@gnu.org>
+
+ * po/es.po, po/fr.po, po/nl.po, po/de.po:
+ Added PO files from Translation Project.
+
+1999-03-03 Jesse Thilo <jthilo@gnu.org>
+
+ * Makefile.am:
+ Added support for non-ANSI compilers (ansi2knr).
+
+1999-02-16 Jesse Thilo <jthilo@gnu.org>
+
+ * configure.in: Bumped version number to 1.27.
+
+ * Makefile.am:
+ Added `bison.simple' to list of files removed by `make distclean'.
+
+1999-02-12 Jesse Thilo <jthilo@gnu.org>
+
+ * src/files.c, src/files.h:
+ Defined locations of parser files in config.h instead of Makefile.
+
+1999-02-12 Jesse Thilo <jthilo@gnu.org>
+
+ * acconfig.h, acinclude.m4, configure.in, Makefile.am:
+ Defined locations of parser files in config.h instead of Makefile.
+
+1999-02-09 Jesse Thilo <jthilo@gnu.org>
+
+ * Makefile.am:
+ Removed inappropriate use of $< macro.
+
+1999-02-05 Jesse Thilo <jthilo@gnu.org>
+
+ * po/Makefile.in.in, po/POTFILES.in:
+ Add `po' directory skeleton.
+
+1999-01-27 Jesse Thilo <jthilo@gnu.org>
+
+ * README: Document help-bison list.
+
+ * configure.in: Add check for mkstemp().
+
+1999-01-20 Jesse Thilo <jthilo@gnu.org>
+
+ * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
+ Hush a few compiler warnings.
+
+ * src/files.c:
+ Add tryclose(), which verifies that fclose was successful.
+ Hush a couple of compiler warnings.
+
+1999-01-20 Jesse Thilo <jthilo@gnu.org>
+
+ * Makefile.am, OChangeLog:
+ ChangeLog is now automatically generated. Include the old version as
+ OChangeLog.
+
+1999-01-14 Jesse Thilo <jthilo@gnu.org>
+
+ * src/gram.h, src/lalr.c, src/lex.c, src/lex.h, src/machine.h, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/state.h, src/symtab.c, src/symtab.h, src/types.h, src/vmsgetargs.c, src/warshall.c, src/allocate.c, src/alloc.h, src/bison.s1, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/files.h, src/getargs.c, src/gram.c, src/LR0.c:
+ Update FSF address.
+
+1999-01-14 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/bison.texinfo: Fix formatting glitch.
+
+ * doc/bison.texinfo: Update FSF address.
+
+1999-01-14 Jesse Thilo <jthilo@gnu.org>
+
+ * acconfig.h: Update FSF address.
+
+1999-01-08 Jesse Thilo <jthilo@gnu.org>
+
+ * src/system.h:
+ Don't define PACKAGE here, since config.h defines it.
+
+1998-12-30 Jesse Thilo <jthilo@gnu.org>
+
+ * src/reader.c: Update copyright date.
+
+ * src/main.c:
+ Ditch sprintf to statically-sized buffers in fatal/warn functions in
+ favor of output directly to stderr (avoids buffer overruns).
+
+ * src/reader.c: Some checks for premature EOF.
+
+ * src/allocate.c, src/alloc.h, src/closure.c, src/conflicts.c, src/derives.c, src/getargs.c, src/gram.c, src/lalr.c, src/lex.c, src/LR0.c, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reduce.c, src/symtab.c, src/symtab.h, src/warshall.c:
+ Use prototypes if the compiler understands them.
+
+ * src/files.c: Honor TMPDIR on Unix hosts.
+ Use prototypes if the compiler understands them.
+
+ * src/reader.c:
+ Fix a couple of buffer overrun bugs.
+ Use prototypes if the compiler understands them.
+
+ * src/system.h: Include unistd.h and ctype.h.
+ Use #ifdef instead of #if for NLS symbols.
+
+1998-12-30 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/bison.texinfo:
+ Delete comment "consider using @set for edition number, etc..." since
+ we now are doing so.
+
+1998-12-30 Jesse Thilo <jthilo@gnu.org>
+
+ * configure.in:
+ Use prototypes if the compiler understands them.
+
+ * NEWS: Document 1.26 highlights.
+
+ * Makefile.am: Require Automake 1.3 or later.
+
+ * acconfig.h:
+ Use prototypes if the compiler understands them.
+
+1998-12-29 Jesse Thilo <jthilo@gnu.org>
+
+ * src/version.c:
+ Use VERSION symbol from automake for version number.
+
+1998-12-29 Jesse Thilo <jthilo@gnu.org>
+
+ * acconfig.h, configure.in, version.cin:
+ Use VERSION symbol from automake for version number.
+
+1998-11-28 Jesse Thilo <jthilo@gnu.org>
+
+ * Makefile.am:
+ Distribute original version of simple parser (bison.s1), not built
+ version (bison.simple).
+
+1998-11-28 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/bison.texinfo: Add info dir entry.
+
+ * doc/bison.texinfo:
+ Let automake put version number into documentation.
+
+1998-11-26 Jesse Thilo <jthilo@gnu.org>
+
+ * src/bison.cld, src/build.com, src/vmshlp.mar:
+ Add non-RCS files from /gd/gnu/bison.
+
+1998-11-26 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/bison.1:
+ Document the BISON_HAIRY and BISON_SIMPLE variables.
+
+1998-11-25 Jesse Thilo <jthilo@gnu.org>
+
+ * src/version.c: Build version.c automatically.
+
+ * src/reader.c:
+ Fix token numbering (used to start at 258, not 257).
+
+ * src/system.h: Include config.h.
+
+ * src/getargs.c: Update bug report address.
+
+ * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
+ Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
+
+1998-11-25 Jesse Thilo <jthilo@gnu.org>
+
+ * Makefile.am:
+ Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
+
+ * configure.in, version.cin:
+ Build version.c automatically.
+
+ * AUTHORS: Add AUTHORS file.
+
+ * README: Update bug report address.
+
+ * bison.simple:
+ Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
+
+ * configure.in, Makefile.am, Makefile.in, stamp-h.in:
+ Add automake stuff.
+
+1998-11-25 Jesse Thilo <jthilo@gnu.org>
+
+ * doc/bison.texinfo: Clean up some formatting.
+
+1998-05-05 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.texinfo:
+ Explain better why to make a pure parser.
+
+1998-01-05 Richard Stallman <rms@gnu.org>
+
+ * src/files.c (openfiles):
+ [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
+ find a temporary directory, if possible. Do not unlink files while
+ they are open.
+
+1997-08-25 Richard Stallman <rms@gnu.org>
+
+ * src/reader.c (stack_offset;):
+ Change some warni to warns.
+
+ * src/lex.c (literalchar): Use warns, not warni.
+
+1997-06-28 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: Add a Bison version comment.
+
+ * src/main.c (fatal, warn, berror):
+ Use program_name.
+
+1997-06-28 Richard Stallman <rms@gnu.org>
+
+ * Makefile.in (bison_version): New variable.
+ (dist): Use that variable.
+ (bison.s1): Substitute the Bison version into bison.simple.
+
+ * bison.simple: Add a Bison version comment.
+
+1997-06-18 Richard Stallman <rms@gnu.org>
+
+ * src/main.c (fatal, warn, berror):
+ Make error messages standard.
+ (toomany): Improve error message text.
+
+ * src/LR0.c, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/lalr.c, src/lex.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/symtab.c:
+ new.h renamed to alloc.h.
+
+1997-06-18 Richard Stallman <rms@gnu.org>
+
+ * Makefile.in: new.h renamed to alloc.h.
+
+1997-05-24 Richard Stallman <rms@gnu.org>
+
+ * src/lex.c (literalchar):
+ Fix the code for escaping \, " and '.
+
+ (lex): Avoid trouble when there are many chars
+ to discard in a char literal with just several chars in it.
+
+1997-05-17 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1:
+ Use malloc, if using alloca is troublesome.
+ (YYSTACK_USE_ALLOCA): New flag macro.
+ Define it for some systems and compilers.
+ (YYSTACK_ALLOC): New macro.
+ (yyparse): Use YYSTACK_ALLOC to allocate stack.
+ If it was malloc'd, free it.
+
+1997-05-17 Richard Stallman <rms@gnu.org>
+
+ * bison.simple:
+ Use malloc, if using alloca is troublesome.
+ (YYSTACK_USE_ALLOCA): New flag macro.
+ Define it for some systems and compilers.
+ (YYSTACK_ALLOC): New macro.
+ (yyparse): Use YYSTACK_ALLOC to allocate stack.
+ If it was malloc'd, free it.
+
+1997-04-23 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1:
+ (alloca) [__hpux]: Always define as __builtin_alloca.
+
+1997-04-23 Richard Stallman <rms@gnu.org>
+
+ * bison.simple:
+ (alloca) [__hpux]: Always define as __builtin_alloca.
+
+1997-04-22 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1:
+ [__hpux]: Include alloca.h (right for HPUX 10)
+ instead of declaring alloca (right for HPUX 9).
+
+ * src/bison.s1 (__yy_memcpy):
+ Declare arg `count' as unsigned int.
+ (yyparse): Cast third arg to __yy_memcpy to unsigned int.
+
+1997-04-22 Richard Stallman <rms@gnu.org>
+
+ * bison.simple:
+ [__hpux]: Include alloca.h (right for HPUX 10)
+ instead of declaring alloca (right for HPUX 9).
+
+ * bison.simple (__yy_memcpy):
+ Declare arg `count' as unsigned int.
+ (yyparse): Cast third arg to __yy_memcpy to unsigned int.
+
+1997-01-03 Richard Stallman <rms@gnu.org>
+
+ * src/allocate.c: [__STDC__ or _MSC_VER]:
+ Declare calloc and realloc to return void *.
+
+1997-01-02 Richard Stallman <rms@gnu.org>
+
+ * src/system.h:
+ [_MSC_VER]: Include stdlib.h and process.h.
+ [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
+
+ * src/main.c (main): Return FAILURE as a value.
+ (printable_version): Declare arg as int, not char.
+
+1997-01-02 Richard Stallman <rms@gnu.org>
+
+ * Makefile.in (dist):
+ Explicitly check for symlinks, and copy them.
+
+1996-12-19 Richard Stallman <rms@gnu.org>
+
+ * src/files.c:
+ [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
+
+1996-12-18 Paul Eggert <eggert@gnu.org>
+
+ * src/bison.s1 (yyparse):
+ If __GNUC__ and YYPARSE_PARAM are both defined,
+ declare yyparse to have a void * argument.
+
+1996-12-18 Paul Eggert <eggert@gnu.org>
+
+ * bison.simple (yyparse):
+ If __GNUC__ and YYPARSE_PARAM are both defined,
+ declare yyparse to have a void * argument.
+
+1996-12-17 Richard Stallman <rms@gnu.org>
+
+ * src/reduce.c (nbits): Add some casts.
+
+1996-08-12 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: Test _MSDOS as well as _MSDOS_.
+
+1996-08-12 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: Test _MSDOS as well as _MSDOS_.
+
+1996-07-31 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1:
+ [__sun && __i386]: Include alloca.h.
+
+1996-07-31 Richard Stallman <rms@gnu.org>
+
+ * bison.simple:
+ [__sun && __i386]: Include alloca.h.
+
+1996-07-30 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: Comment change.
+
+ * src/bison.s1: Test _MSDOS_, not MSDOS.
+
+1996-07-30 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: Comment change.
+
+ * bison.simple: Test _MSDOS_, not MSDOS.
+
+1996-06-01 Richard Stallman <rms@gnu.org>
+
+ * src/reduce.c, src/reader.c, src/print.c, src/output.c, src/nullable.c, src/lex.c, src/lalr.c, src/getargs.c, src/derives.c, src/conflicts.c, src/closure.c, src/allocate.c:
+ Insert `_' macro around many string constants.
+
+ * src/main.c:
+ Insert `_' macro around many string constants.
+
+ (main): Call setlocale, bindtextdomain and textdomain.
+
+ * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
+ [! HAVE_LOCALE_H] (setlocale): Define as no-op.
+ [ENABLE_NLS]: Include libintl.h.
+ [ENABLE_NLS] (gettext): Define.
+ [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
+ (N_, PACKAGE, LOCALEDIR): New macros.
+
+1996-06-01 Richard Stallman <rms@gnu.org>
+
+ * POTFILES.in: New file.
+
+ * Makefile.in (allocate.o):
+ Define target explicitly.
+
+ * Makefile.in (CFLAGS): Set to @CFLAGS@.
+ (LDFLAGS): Set to @LDFLAGS@.
+ (configure): Run autoconf only if preceding `cd' succeeds.
+ (bison.s1): Redirect output to temporary file then move the
+ temporary to the target, rather than redirecting directly to bison.s1.
+ (clean): Remove config.status and config.log.
+ (distclean): Don't remove config.status here.
+
+1996-05-12 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1:
+ (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
+
+1996-05-12 Richard Stallman <rms@gnu.org>
+
+ * bison.simple:
+ (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
+
+1996-05-11 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1 (__yy_memcpy):
+ Really reorder the args, as was supposedly done on Feb 14 1995.
+ (yyparse): Calls changed accordingly.
+
+1996-05-11 Richard Stallman <rms@gnu.org>
+
+ * Makefile.in (dist): Don't use $(srcdir).
+
+ * bison.simple (__yy_memcpy):
+ Really reorder the args, as was supposedly done on Feb 14 1995.
+ (yyparse): Calls changed accordingly.
+
+1996-01-27 Richard Stallman <rms@gnu.org>
+
+ * src/output.c (output_rule_data):
+ Test YYERROR_VERBOSE in the conditional
+ around the definition of ttyname.
+
+1995-12-29 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1:
+ Fix line numbers in #line commands.
+
+1995-12-29 Richard Stallman <rms@gnu.org>
+
+ * bison.simple:
+ Fix line numbers in #line commands.
+
+1995-12-27 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1 (YYPARSE_PARAM_DECL):
+ In C++, make it always null.
+ (YYPARSE_PARAM_ARG): New macro.
+ (yyparse): Use YYPARSE_PARAM_ARG.
+
+1995-12-27 Richard Stallman <rms@gnu.org>
+
+ * bison.simple (YYPARSE_PARAM_DECL):
+ In C++, make it always null.
+ (YYPARSE_PARAM_ARG): New macro.
+ (yyparse): Use YYPARSE_PARAM_ARG.
+
+1995-11-29 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.texinfo:
+ Describe literal string tokens, %raw, %no_lines, %token_table.
+
+1995-11-29 Daniel Hagerty <hag@gnu.org>
+
+ * doc/bison.texinfo: Fixed update date
+
+1995-10-16 Richard Stallman <rms@gnu.org>
+
+ * src/version.c: Version 1.25.
+
+1995-10-16 Richard Stallman <rms@gnu.org>
+
+ * NEWS: *** empty log message ***
+
+1995-10-16 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.1, doc/bison.rnh:
+ Add new options.
+
+1995-10-15 Richard Stallman <rms@gnu.org>
+
+ * src/vmsgetargs.c, src/getargs.c:
+ Added -n, -k, and -raw switches.
+ (noparserflag, toknumflag, rawtoknumflag): New variables.
+
+ * src/symtab.h (SALIAS):
+ New #define for adding aliases to %token.
+ (struct bucket): Added `alias' field.
+
+ * src/reduce.c (reduce_grammar):
+ Revise error message.
+ (print_notices): Remove final `.' from error message.
+
+ * src/reader.c (reader_output_yylsp):
+ New function.
+ (readgram): Use `#if 0' around code that accepted %command
+ inside grammar rules: The documentation doesn't allow it,
+ and it will fail since the %command processors scan for the next %.
+ (parse_token_decl): Extended the %token
+ declaration to allow a multi-character symbol as an alias.
+ (parse_thong_decl): New function.
+ (read_declarations): Added %thong declarations.
+ (read_declarations): Handle NOOP to deal with allowing
+ % declarations as another means to specify the flags.
+ (readgram): Allow %prec prior to semantics embedded in a rule.
+ (skip_to_char, read_declarations, copy_definition)
+ (parse_token_decl, parse_start_decl, parse_type_decl)
+ (parse_assoc_decl, parse_union_decl, parse_expect_decl)
+ (get_type_name, copy_guard, copy_action, readgram)
+ (get_type, packsymbols): Revised most error messages.
+ Changed `fatal' to `warnxxx' to avoid aborting for error.
+ Revised and use multiple warnxxx functions to avoid using VARARGS1.
+ (read_declarations): Improve the error message for
+ an invalid character. Do not abort.
+ (read_declarations, copy_guard, copy_action): Use
+ printable_version to avoid unprintable characters in printed output.
+ (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
+ (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
+ Allow the type of a non-terminal can be given
+ more than once, as long as all specifications give the same type.
+
+ * src/output.c:
+ (output_headers, output_trailers, output, output_gram)
+ (output_rule_data): Implement noparserflag variable.
+ Implement toknumflag variable.
+ (output): Call reader_output_yylsp to output LTYPESTR.
+
+ * src/main.c (main):
+ If reader sees an error, don't process the grammar.
+ (fatals): Updated to not use VARARGS1.
+ (printable_version, int_to_string, warn, warni, warns, warnss)
+ (warnsss): New error reporting functions. Avoid abort for error.
+
+ * src/lex.h:
+ Added THONG and NOOP for alias processing.
+ Added SETOPT for the new code that allows setting options with %flags.
+
+ * src/lex.c:
+ Include getopt.h. Add some extern decls.
+ (safegetc): New function to deal with EOF gracefully.
+ (literalchar); new function to deal with reading \ escapes.
+ (lex): Use literalchar.
+ (lex): Implemented "..." tokens.
+ (literalchar, lex, parse_percent_token): Made tokenbuffer
+ always contain the token. This includes growing the token
+ buffer while reading an integer.
+ (parse_percent_token): Replaced if-else statement with percent_table.
+ (parse_percent_token): Added % declarations as another
+ way to specify the flags -n, -l, and -r. Also added hooks for
+ -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
+ major changes to files.c.
+ (lex) Retain in the incoming stream a character following
+ an incorrect '/'.
+ (skip_white_space, lex): Revised most error messages
+ and changed fatal to warn to avoid aborting.
+ (percent_table): Added %thong declarations.
+
+ * src/gram.h: Comment changes.
+
+ * src/files.c (openfiles, open_extra_files, done):
+ Add faction flag
+ and actfile file. Handle noparserflag. Both for -n switch.
+
+ * src/conflicts.c (resolve_sr_conflict):
+ Remove use of alloca.
+
+1995-06-01 Jim Meyering <meyering@gnu.org>
+
+ * doc/bison.texinfo: *** empty log message ***
+
+1995-05-06 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: Comment change.
+
+1995-05-06 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: Comment change.
+
+1995-05-03 Richard Stallman <rms@gnu.org>
+
+ * src/version.c: Version now 1.24.
+
+ * src/bison.s1: Change distribution terms.
+
+ * src/version.c: Version now 1.23.
+
+1995-05-03 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.texinfo:
+ Rewrite "Conditions for Using Bison".
+ Update version to 1.24.
+
+1995-05-03 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: Change distribution terms.
+
+1995-02-23 Richard Stallman <rms@gnu.org>
+
+ * src/files.c: Test __VMS_POSIX as well as VMS.
+
+1995-02-14 Jim Meyering <meyering@gnu.org>
+
+ * src/bison.s1 (__yy_memcpy):
+ Renamed from __yy_bcopy to avoid
+ confusion. Reverse FROM and TO arguments to be consistent with
+ those of memcpy.
+
+1995-02-14 Jim Meyering <meyering@gnu.org>
+
+ * bison.simple (__yy_memcpy):
+ Renamed from __yy_bcopy to avoid
+ confusion. Reverse FROM and TO arguments to be consistent with
+ those of memcpy.
+
+1994-11-10 David J. MacKenzie <djm@gnu.org>
+
+ * NEWS: reformat
+
+ * NEWS: New file.
+
+ * Makefile.in (DISTFILES): Include NEWS.
+
+ * Makefile.in (DISTFILES):
+ Include install-sh, not install.sh.
+
+ * configure.in: Update to Autoconf v2 macro names.
+
+1994-10-05 David J. MacKenzie <djm@gnu.org>
+
+ * Makefile.in: fix typo
+
+ * Makefile.in (prefix, exec_prefix):
+ Let configure set them.
+
+1994-09-28 David J. MacKenzie <djm@gnu.org>
+
+ * Makefile.in: Set datadir to $(prefix)/share.
+
+1994-09-15 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1:
+ Update copyright notice and GPL version.
+
+1994-09-15 Richard Stallman <rms@gnu.org>
+
+ * bison.simple:
+ Update copyright notice and GPL version.
+
+1994-07-12 Richard Stallman <rms@gnu.org>
+
+ * src/reduce.c, src/reader.c:
+ entered into RCS
+
+1994-05-05 David J. MacKenzie <djm@gnu.org>
+
+ * Makefile.in: entered into RCS
+
+1994-03-26 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: entered into RCS
+
+1994-03-26 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: entered into RCS
+
+1994-03-25 Richard Stallman <rms@gnu.org>
+
+ * src/main.c: entered into RCS
+
+1994-03-24 Richard Stallman <rms@gnu.org>
+
+ * src/conflicts.c: entered into RCS
+
+1994-01-02 Richard Stallman <rms@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-11-21 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: *** empty log message ***
+
+1993-11-21 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.texinfo: entered into RCS
+
+ * doc/bison.texinfo: *** empty log message ***
+
+1993-11-21 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: *** empty log message ***
+
+1993-10-25 David J. MacKenzie <djm@gnu.org>
+
+ * doc/bison.texinfo: *** empty log message ***
+
+1993-10-19 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: *** empty log message ***
+
+1993-10-19 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: *** empty log message ***
+
+1993-10-14 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: *** empty log message ***
+
+1993-10-14 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: *** empty log message ***
+
+1993-09-14 David J. MacKenzie <djm@gnu.org>
+
+ * doc/bison.texinfo: *** empty log message ***
+
+1993-09-13 Noah Friedman <friedman@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-09-10 Richard Stallman <rms@gnu.org>
+
+ * src/conflicts.c: *** empty log message ***
+
+ * src/system.h: entered into RCS
+
+1993-09-10 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.1: entered into RCS
+
+1993-09-06 Noah Friedman <friedman@gnu.org>
+
+ * src/version.c: entered into RCS
+
+1993-09-06 Noah Friedman <friedman@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-07-30 David J. MacKenzie <djm@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-07-24 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: *** empty log message ***
+
+1993-07-24 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: *** empty log message ***
+
+1993-07-08 David J. MacKenzie <djm@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-07-04 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: *** empty log message ***
+
+1993-07-04 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: *** empty log message ***
+
+1993-06-26 David J. MacKenzie <djm@gnu.org>
+
+ * src/getargs.c: entered into RCS
+
+1993-06-26 David J. MacKenzie <djm@gnu.org>
+
+ * doc/bison.texinfo: *** empty log message ***
+
+ * doc/bison.1: New file.
+
+1993-06-25 Richard Stallman <rms@gnu.org>
+
+ * src/getargs.c: New file.
+
+1993-06-16 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: *** empty log message ***
+
+1993-06-16 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: *** empty log message ***
+
+1993-06-03 Richard Stallman <rms@gnu.org>
+
+ * src/bison.s1: New file.
+
+1993-06-03 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.texinfo: *** empty log message ***
+
+1993-06-03 Richard Stallman <rms@gnu.org>
+
+ * bison.simple: New file.
+
+1993-05-19 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.texinfo: New file.
+
+1993-05-07 Noah Friedman <friedman@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-04-28 Noah Friedman <friedman@gnu.org>
+
+ * src/reader.c: *** empty log message ***
+
+1993-04-23 Noah Friedman <friedman@gnu.org>
+
+ * src/alloc.h: entered into RCS
+
+1993-04-20 David J. MacKenzie <djm@gnu.org>
+
+ * src/version.c: *** empty log message ***
+
+ * src/files.c, src/allocate.c:
+ entered into RCS
+
+ * src/reader.c: *** empty log message ***
+
+ * src/lex.c: entered into RCS
+
+ * src/conflicts.c: New file.
+
+ * src/symtab.c: entered into RCS
+
+ * src/alloc.h: New file.
+
+ * src/LR0.c: entered into RCS
+
+1993-04-18 Noah Friedman <friedman@gnu.org>
+
+ * src/reader.c: New file.
+
+ * src/version.c: *** empty log message ***
+
+1993-04-18 Noah Friedman <friedman@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-04-17 Noah Friedman <friedman@gnu.org>
+
+ * Makefile.in: *** empty log message ***
+
+1993-04-15 Richard Stallman <rms@gnu.org>
+
+ * src/main.c, src/files.c:
+ New file.
+
+1993-04-15 Noah Friedman <friedman@gnu.org>
+
+ * configure.in: entered into RCS
+
+ * configure.in: *** empty log message ***
+
+ * configure.in: New file.
+
+1993-04-14 Richard Stallman <rms@gnu.org>
+
+ * Makefile.in: New file.
+
+1993-04-13 Richard Stallman <rms@gnu.org>
+
+ * src/version.c: New file.
+
+1993-03-25 Richard Stallman <rms@gnu.org>
+
+ * src/output.c: entered into RCS
+
+1992-09-25 Richard Stallman <rms@gnu.org>
+
+ * configure.bat: entered into RCS
+
+1992-06-22 Richard Stallman <rms@gnu.org>
+
+ * src/vmsgetargs.c: entered into RCS
+
+1992-06-22 Richard Stallman <rms@gnu.org>
+
+ * doc/bison.rnh: entered into RCS
+
+1992-04-20 David J. MacKenzie <djm@gnu.org>
+
+ * README: entered into RCS
+
+1992-01-22 Richard Stallman <rms@gnu.org>
+
+ * src/machine.h: entered into RCS
+
+1991-12-21 Richard Stallman <rms@gnu.org>
+
+ * src/lalr.c, src/closure.c:
+ entered into RCS
+
+1991-12-20 Richard Stallman <rms@gnu.org>
+
+ * src/state.h: entered into RCS
+
+1991-12-18 Richard Stallman <rms@gnu.org>
+
+ * src/print.c, src/nullable.c, src/derives.c:
+ entered into RCS
+
+1991-11-03 David J. MacKenzie <djm@gnu.org>
+
+ * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
+ entered into RCS
+
+1988-09-09 Richard Stallman <rms@gnu.org>
+
+ * src/bison.hairy: entered into RCS
+
+1987-12-16 Richard Stallman <rms@gnu.org>
+
+ * REFERENCES: entered into RCS
+
+
+ -----
+
+ Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free
+ Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without
+ modification, are permitted provided the copyright notice and this
+ notice are preserved.
diff --git a/GNUmakefile b/GNUmakefile
new file mode 100644
index 0000000..675af82
--- /dev/null
+++ b/GNUmakefile
@@ -0,0 +1,58 @@
+# Having a separate GNUmakefile lets me `include' the dynamically
+# generated rules created via Makefile.maint as well as Makefile.maint itself.
+# This makefile is used only if you run GNU Make.
+# It is necessary if you want to build targets usually of interest
+# only to the maintainer.
+
+# Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Systems where /bin/sh is not the default shell need this. The $(shell)
+# command below won't work with e.g. stock DOS/Windows shells.
+ifeq ($(wildcard /bin/s[h]),/bin/sh)
+SHELL = /bin/sh
+else
+# will be used only with the next shell-test line, then overwritten
+# by a configured-in value
+SHELL = sh
+endif
+
+have-Makefile := $(shell test -f Makefile && echo yes)
+
+# If the user runs GNU make but has not yet run ./configure,
+# give them a diagnostic.
+ifeq ($(have-Makefile),yes)
+
+# Make tar archive easier to reproduce.
+export TAR_OPTIONS = --owner=0 --group=0 --numeric-owner
+
+include Makefile
+include $(srcdir)/Makefile.cfg
+include $(srcdir)/Makefile.maint
+
+else
+
+all:
+ @echo There seems to be no Makefile in this directory.
+ @echo "You must run ./configure before running \`make'."
+ @exit 1
+
+endif
+
+# Tell version 3.79 and up of GNU make to not build goals in this
+# directory in parallel. This is necessary in case someone tries to
+# build multiple targets on one command line.
+.NOTPARALLEL:
diff --git a/INSTALL b/INSTALL
new file mode 100644
index 0000000..23e5f25
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,236 @@
+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005 Free
+Software Foundation, Inc.
+
+This file is free documentation; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+
+Basic Installation
+==================
+
+These are generic installation instructions.
+
+ The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation. It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions. Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+ It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring. (Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.)
+
+ If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release. If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+ The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'. You only need
+`configure.ac' if you want to change it or regenerate `configure' using
+a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+ 1. `cd' to the directory containing the package's source code and type
+ `./configure' to configure the package for your system. If you're
+ using `csh' on an old version of System V, you might need to type
+ `sh ./configure' instead to prevent `csh' from trying to execute
+ `configure' itself.
+
+ Running `configure' takes awhile. While running, it prints some
+ messages telling which features it is checking for.
+
+ 2. Type `make' to compile the package.
+
+ 3. Optionally, type `make check' to run any self-tests that come with
+ the package.
+
+ 4. Type `make install' to install the programs and any data files and
+ documentation.
+
+ 5. You can remove the program binaries and object files from the
+ source code directory by typing `make clean'. To also remove the
+ files that `configure' created (so you can compile the package for
+ a different kind of computer), type `make distclean'. There is
+ also a `make maintainer-clean' target, but that is intended mainly
+ for the package's developers. If you use it, you may have to get
+ all sorts of other programs in order to regenerate files that came
+ with the distribution.
+
+Compilers and Options
+=====================
+
+Some systems require unusual options for compilation or linking that the
+`configure' script does not know about. Run `./configure --help' for
+details on some of the pertinent environment variables.
+
+ You can give `configure' initial values for configuration parameters
+by setting variables in the command line or in the environment. Here
+is an example:
+
+ ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
+
+ *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory. To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'. `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script. `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+ If you have to use a `make' that does not support the `VPATH'
+variable, you have to compile the package for one architecture at a
+time in the source code directory. After you have installed the
+package for one architecture, use `make distclean' before reconfiguring
+for another architecture.
+
+Installation Names
+==================
+
+By default, `make install' installs the package's commands under
+`/usr/local/bin', include files under `/usr/local/include', etc. You
+can specify an installation prefix other than `/usr/local' by giving
+`configure' the option `--prefix=PREFIX'.
+
+ You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files. If you
+pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+PREFIX as the prefix for installing programs and libraries.
+Documentation and other data files still use the regular prefix.
+
+ In addition, if you use an unusual directory layout you can give
+options like `--bindir=DIR' to specify different values for particular
+kinds of files. Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+ If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System). The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+ For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+There may be some features `configure' cannot figure out automatically,
+but needs to determine by the type of machine the package will run on.
+Usually, assuming the package is built to be run on the _same_
+architectures, `configure' can figure that out, but if it prints a
+message saying it cannot guess the machine type, give it the
+`--build=TYPE' option. TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+ CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+ OS KERNEL-OS
+
+ See the file `config.sub' for the possible values of each field. If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the machine type.
+
+ If you are _building_ compiler tools for cross-compiling, you should
+use the option `--target=TYPE' to select the type of system they will
+produce code for.
+
+ If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the
+"host" platform (i.e., that on which the generated programs will
+eventually be run) with `--host=TYPE'.
+
+Sharing Defaults
+================
+
+If you want to set default values for `configure' scripts to share, you
+can create a site shell script called `config.site' that gives default
+values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists. Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+Variables not defined in a site shell script can be set in the
+environment passed to `configure'. However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost. In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'. For example:
+
+ ./configure CC=/usr/local2/bin/gcc
+
+causes the specified `gcc' to be used as the C compiler (unless it is
+overridden in the site shell script). Here is a another example:
+
+ /bin/bash ./configure CONFIG_SHELL=/bin/bash
+
+Here the `CONFIG_SHELL=/bin/bash' operand causes subsequent
+configuration-related scripts to be executed by `/bin/bash'.
+
+`configure' Invocation
+======================
+
+`configure' recognizes the following options to control how it operates.
+
+`--help'
+`-h'
+ Print a summary of the options to `configure', and exit.
+
+`--version'
+`-V'
+ Print the version of Autoconf used to generate the `configure'
+ script, and exit.
+
+`--cache-file=FILE'
+ Enable the cache: use and save the results of the tests in FILE,
+ traditionally `config.cache'. FILE defaults to `/dev/null' to
+ disable caching.
+
+`--config-cache'
+`-C'
+ Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+ Do not print messages saying which checks are being made. To
+ suppress all normal output, redirect it to `/dev/null' (any error
+ messages will still be shown).
+
+`--srcdir=DIR'
+ Look for the package's source code in directory DIR. Usually
+ `configure' can determine that directory automatically.
+
+`configure' also accepts some other, not widely useful, options. Run
+`configure --help' for more details.
+
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..41b2ee4
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,704 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+srcdir = .
+top_srcdir = .
+
+pkgdatadir = $(datadir)/bison
+pkglibdir = $(libdir)/bison
+pkgincludedir = $(includedir)/bison
+top_builddir = .
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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+install_sh_DATA = $(install_sh) -c -m 644
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+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
+subdir = .
+DIST_COMMON = README $(am__configure_deps) $(srcdir)/Makefile.am \
+ $(srcdir)/Makefile.in $(srcdir)/config.hin \
+ $(top_srcdir)/configure ABOUT-NLS AUTHORS COPYING ChangeLog \
+ INSTALL NEWS THANKS TODO
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+CONFIG_HEADER = config.h
+CONFIG_CLEAN_FILES =
+SOURCES =
+DIST_SOURCES =
+RECURSIVE_TARGETS = all-recursive check-recursive dvi-recursive \
+ html-recursive info-recursive install-data-recursive \
+ install-exec-recursive install-info-recursive \
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+am__remove_distdir = \
+ { test ! -d $(distdir) \
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+DIST_ARCHIVES = $(distdir).tar.gz $(distdir).tar.bz2
+GZIP_ENV = --best
+distuninstallcheck_listfiles = find . -type f -print
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diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..f247e24
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,37 @@
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+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
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+## (at your option) any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
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index 0000000..fb15523
--- /dev/null
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+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
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+ mkdir $(distdir)
+ $(mkdir_p) $(distdir)/djgpp $(distdir)/m4 $(distdir)/po $(distdir)/runtime-po $(distdir)/tests
+ @srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+ list='$(DISTFILES)'; for file in $$list; do \
+ case $$file in \
+ $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+ $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+ esac; \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+ dir="/$$dir"; \
+ $(mkdir_p) "$(distdir)$$dir"; \
+ else \
+ dir=''; \
+ fi; \
+ if test -d $$d/$$file; then \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+ list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+ if test "$$subdir" = .; then :; else \
+ test -d "$(distdir)/$$subdir" \
+ || $(mkdir_p) "$(distdir)/$$subdir" \
+ || exit 1; \
+ distdir=`$(am__cd) $(distdir) && pwd`; \
+ top_distdir=`$(am__cd) $(top_distdir) && pwd`; \
+ (cd $$subdir && \
+ $(MAKE) $(AM_MAKEFLAGS) \
+ top_distdir="$$top_distdir" \
+ distdir="$$distdir/$$subdir" \
+ distdir) \
+ || exit 1; \
+ fi; \
+ done
+ -find $(distdir) -type d ! -perm -777 -exec chmod a+rwx {} \; -o \
+ ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
+ ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
+ ! -type d ! -perm -444 -exec $(SHELL) $(install_sh) -c -m a+r {} {} \; \
+ || chmod -R a+r $(distdir)
+dist-gzip: distdir
+ tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+ $(am__remove_distdir)
+dist-bzip2: distdir
+ tardir=$(distdir) && $(am__tar) | bzip2 -9 -c >$(distdir).tar.bz2
+ $(am__remove_distdir)
+
+dist-tarZ: distdir
+ tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
+ $(am__remove_distdir)
+
+dist-shar: distdir
+ shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+ $(am__remove_distdir)
+
+dist-zip: distdir
+ -rm -f $(distdir).zip
+ zip -rq $(distdir).zip $(distdir)
+ $(am__remove_distdir)
+
+dist dist-all: distdir
+ tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+ tardir=$(distdir) && $(am__tar) | bzip2 -9 -c >$(distdir).tar.bz2
+ $(am__remove_distdir)
+
+# This target untars the dist file and tries a VPATH configuration. Then
+# it guarantees that the distribution is self-contained by making another
+# tarfile.
+distcheck: dist
+ case '$(DIST_ARCHIVES)' in \
+ *.tar.gz*) \
+ GZIP=$(GZIP_ENV) gunzip -c $(distdir).tar.gz | $(am__untar) ;;\
+ *.tar.bz2*) \
+ bunzip2 -c $(distdir).tar.bz2 | $(am__untar) ;;\
+ *.tar.Z*) \
+ uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
+ *.shar.gz*) \
+ GZIP=$(GZIP_ENV) gunzip -c $(distdir).shar.gz | unshar ;;\
+ *.zip*) \
+ unzip $(distdir).zip ;;\
+ esac
+ chmod -R a-w $(distdir); chmod a+w $(distdir)
+ mkdir $(distdir)/_build
+ mkdir $(distdir)/_inst
+ chmod a-w $(distdir)
+ dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
+ && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
+ && cd $(distdir)/_build \
+ && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+ $(DISTCHECK_CONFIGURE_FLAGS) \
+ && $(MAKE) $(AM_MAKEFLAGS) \
+ && $(MAKE) $(AM_MAKEFLAGS) dvi \
+ && $(MAKE) $(AM_MAKEFLAGS) check \
+ && $(MAKE) $(AM_MAKEFLAGS) install \
+ && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+ && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+ && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
+ distuninstallcheck \
+ && chmod -R a-w "$$dc_install_base" \
+ && ({ \
+ (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
+ && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+ && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+ && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+ distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+ } || { rm -rf "$$dc_destdir"; exit 1; }) \
+ && rm -rf "$$dc_destdir" \
+ && $(MAKE) $(AM_MAKEFLAGS) dist \
+ && rm -rf $(DIST_ARCHIVES) \
+ && $(MAKE) $(AM_MAKEFLAGS) distcleancheck
+ $(am__remove_distdir)
+ @(echo "$(distdir) archives ready for distribution: "; \
+ list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
+ sed -e '1{h;s/./=/g;p;x;}' -e '$${p;x;}'
+distuninstallcheck:
+ @cd $(distuninstallcheck_dir) \
+ && test `$(distuninstallcheck_listfiles) | wc -l` -le 1 \
+ || { echo "ERROR: files left after uninstall:" ; \
+ if test -n "$(DESTDIR)"; then \
+ echo " (check DESTDIR support)"; \
+ fi ; \
+ $(distuninstallcheck_listfiles) ; \
+ exit 1; } >&2
+distcleancheck: distclean
+ @if test '$(srcdir)' = . ; then \
+ echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+ exit 1 ; \
+ fi
+ @test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+ || { echo "ERROR: files left in build directory after distclean:" ; \
+ $(distcleancheck_listfiles) ; \
+ exit 1; } >&2
+check-am: all-am
+check: check-recursive
+all-am: Makefile $(DATA) config.h
+installdirs: installdirs-recursive
+installdirs-am:
+ for dir in "$(DESTDIR)$(aclocaldir)"; do \
+ test -z "$$dir" || $(mkdir_p) "$$dir"; \
+ done
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-recursive
+ -rm -f $(am__CONFIG_DISTCLEAN_FILES)
+ -rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-hdr distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+info: info-recursive
+
+info-am:
+
+install-data-am: install-aclocalDATA
+
+install-exec-am:
+
+install-info: install-info-recursive
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+ -rm -f $(am__CONFIG_DISTCLEAN_FILES)
+ -rm -rf $(top_srcdir)/autom4te.cache
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am: uninstall-aclocalDATA uninstall-info-am
+
+uninstall-info: uninstall-info-recursive
+
+.PHONY: $(RECURSIVE_TARGETS) CTAGS GTAGS all all-am am--refresh check \
+ check-am clean clean-generic clean-recursive ctags \
+ ctags-recursive dist dist-all dist-bzip2 dist-gzip dist-shar \
+ dist-tarZ dist-zip distcheck distclean distclean-generic \
+ distclean-hdr distclean-recursive distclean-tags \
+ distcleancheck distdir distuninstallcheck dvi dvi-am html \
+ html-am info info-am install install-aclocalDATA install-am \
+ install-data install-data-am install-exec install-exec-am \
+ install-info install-info-am install-man install-strip \
+ installcheck installcheck-am installdirs installdirs-am \
+ maintainer-clean maintainer-clean-generic \
+ maintainer-clean-recursive mostlyclean mostlyclean-generic \
+ mostlyclean-recursive pdf pdf-am ps ps-am tags tags-recursive \
+ uninstall uninstall-aclocalDATA uninstall-am uninstall-info-am
+
+
+.PHONY: maintainer-check
+maintainer-check:
+ cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/Makefile.maint b/Makefile.maint
new file mode 100644
index 0000000..9bae6be
--- /dev/null
+++ b/Makefile.maint
@@ -0,0 +1,639 @@
+# -*-Makefile-*-
+# This Makefile fragment is shared between the coreutils,
+# CPPI, Bison, and Autoconf.
+
+## Copyright (C) 2001-2006 Free Software Foundation, Inc.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2, or (at your option)
+## any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301, USA.
+
+# This is reported not to work with make-3.79.1
+# ME := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
+ME := Makefile.maint
+
+# Do not save the original name or timestamp in the .tar.gz file.
+# Use --rsyncable if available.
+gzip_rsyncable = \
+ (gzip --help|grep rsyncable) >/dev/null 2>&1 && echo --rsyncable
+GZIP_ENV = "--no-name --best `$(gzip_rsyncable)`"
+
+CVS = cvs
+
+# cvsu is part of the cvsutils package: http://www.red-bean.com/cvsutils/
+CVS_LIST = sh -c ' \
+ if test -x $(srcdir)/build-aux/cvsu; then \
+ $(srcdir)/build-aux/cvsu --find --types=AFGM $$*; \
+ else \
+ awk -F/ '\''{ \
+ if (!$$1 && $$3 !~ /^-/) { \
+ f=FILENAME; \
+ sub(/CVS\/Entries/, "", f); \
+ print f $$2; \
+ }}'\'' \
+ $$(find $${*-*} -name Entries -print) /dev/null; \
+ fi \
+ ' dummy
+
+CVS_LIST_EXCEPT = \
+ $(CVS_LIST) | if test -f .x-$@; then grep -vEf .x-$@; else grep -v ChangeLog; fi
+
+ifeq ($(origin prev_version_file), undefined)
+ prev_version_file = .prev-version
+endif
+
+PREV_VERSION := $(shell cat $(prev_version_file))
+VERSION_REGEXP = $(subst .,\.,$(VERSION))
+
+tag-package = $(shell echo "$(PACKAGE)" | tr '[:lower:]' '[:upper:]')
+tag-this-version = $(subst .,_,$(VERSION))
+this-cvs-tag = $(tag-package)-$(tag-this-version)
+my_distdir = $(PACKAGE)-$(VERSION)
+
+# Old releases are stored here.
+# Used for diffs and xdeltas.
+release_archive_dir ?= ../release
+
+# Prevent programs like 'sort' from considering distinct strings to be equal.
+# Doing it here saves us from having to set LC_ALL elsewhere in this file.
+export LC_ALL = C
+
+
+
+## --------------- ##
+## Sanity checks. ##
+## --------------- ##
+
+# FIXME: add a check to prohibit definition in src/*.c of symbols defined
+# in system.h. E.g. today I removed from tail.c a useless definition of
+# ENOSYS. It was useless because system.h ensures it's defined.
+
+# Checks that don't require cvs.
+# Run `changelog-check' last, as previous test may reveal problems requiring
+# new ChangeLog entries.
+local-checks-available = \
+ po-check copyright-check writable-files m4-check author_mark_check \
+ changelog-check strftime-check $(syntax-check-rules) \
+ makefile_path_separator_check \
+ makefile-check
+.PHONY: $(local-checks-available)
+
+local-check = $(filter-out $(local-checks-to-skip), $(local-checks-available))
+
+.PHONY: $(syntax-check-rules)
+syntax-check-rules = \
+ sc_cast_of_argument_to_free \
+ sc_cast_of_x_alloc_return_value \
+ sc_cast_of_alloca_return_value \
+ sc_changelog \
+ sc_dd_max_sym_length \
+ sc_error_exit_success \
+ sc_file_system \
+ sc_no_if_have_config_h \
+ sc_obsolete_symbols \
+ sc_prohibit_atoi_atof \
+ sc_prohibit_jm_in_m4 \
+ sc_prohibit_assert_without_use \
+ sc_require_config_h \
+ sc_root_tests \
+ sc_space_tab \
+ sc_sun_os_names \
+ sc_system_h_headers \
+ sc_tight_scope \
+ sc_trailing_blank \
+ sc_two_space_separator_in_usage \
+ sc_unmarked_diagnostics \
+ sc_useless_cpp_parens
+
+syntax-check: $(syntax-check-rules)
+# @grep -nE '# *include <(limits|std(def|arg|bool))\.h>' \
+# $$(find -type f -name '*.[chly]') && \
+# { echo '$(ME): found conditional include' 1>&2; \
+# exit 1; } || :
+
+# grep -nE '^# *include <(string|stdlib)\.h>' \
+# $(srcdir)/{lib,src}/*.[chy] && \
+# { echo '$(ME): FIXME' 1>&2; \
+# exit 1; } || :
+# FIXME: don't allow `#include .strings\.h' anywhere
+
+sc_cast_of_argument_to_free:
+ @grep -nE '\<free \(\(' $(srcdir)/{lib,src}/*.[chly] && \
+ { echo '$(ME): don'\''t cast free argument' 1>&2; \
+ exit 1; } || :
+
+sc_cast_of_x_alloc_return_value:
+ @grep -nE --exclude=$(srcdir)/lib/regex.c \
+ '\*\) *x(m|c|re)alloc\>' \
+ $(srcdir)/{lib,src}/*.[chy] && \
+ { echo '$(ME): don'\''t cast x*alloc return value' 1>&2; \
+ exit 1; } || :
+
+sc_cast_of_alloca_return_value:
+ @grep -nE '\*\) *alloca\>' \
+ $(srcdir)/src/*.[chy] && \
+ { echo '$(ME): don'\''t cast alloca return value' 1>&2; \
+ exit 1; } || :
+
+sc_space_tab:
+ @grep -n '[ ] ' $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): found SPACE-TAB sequence; remove the SPACE' \
+ 1>&2; exit 1; } || :
+
+# Don't use the old ato* functions in `real' code.
+# They provide no error checking mechanism.
+# Instead, use strto* functions.
+sc_prohibit_atoi_atof:
+ @grep -nE '\<ato([filq]|ll)\>' $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): do not use ato''f, ato''i, ato''l, ato''ll, or ato''q' \
+ 1>&2; exit 1; } || :
+
+# Using EXIT_SUCCESS as the first argument to error is misleading,
+# since when that parameter is 0, error does not exit. Use `0' instead.
+sc_error_exit_success:
+ @grep -nF 'error (EXIT_SUCCESS,' \
+ $$(find -type f -name '*.[chly]') && \
+ { echo '$(ME): found error (EXIT_SUCCESS' 1>&2; \
+ exit 1; } || :
+
+sc_file_system:
+ @grep -ni 'file''system' $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): found use of "file''system";' \
+ 'rewrite to use "file system"' 1>&2; \
+ exit 1; } || :
+
+sc_no_if_have_config_h:
+ @grep -n '^# *if HAVE_CONFIG_H' $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): found use of #if HAVE_CONFIG_H; use #ifdef' \
+ 1>&2; exit 1; } || :
+
+# Nearly all .c files must include <config.h>.
+sc_require_config_h:
+ @grep -L '^# *include <config\.h>' \
+ $$($(CVS_LIST_EXCEPT) | grep '\.c$$') \
+ | grep . && \
+ { echo '$(ME): the above files do not include <config.h>' \
+ 1>&2; exit 1; } || :
+
+# Prohibit the inclusion of assert.h without an actual use of assert.
+sc_prohibit_assert_without_use:
+ @files=$$(grep -l '# *include <assert\.h>' \
+ $$($(CVS_LIST_EXCEPT) | grep '\.c$$')) && \
+ grep -L '\<assert (' $$files \
+ | grep . && \
+ { echo "$(ME): the above files include <assert.h> but don't use it" \
+ 1>&2; exit 1; } || :
+
+sc_obsolete_symbols:
+ @grep -nE '\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
+ $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): do not use HAVE''_FCNTL_H or O''_NDELAY' \
+ 1>&2; exit 1; } || :
+
+# FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
+
+# Each nonempty line must start with a year number, or a TAB.
+sc_changelog:
+ @grep -n '^[^12 ]' $$(find . -maxdepth 2 -name ChangeLog) && \
+ { echo '$(ME): found unexpected prefix in a ChangeLog' 1>&2; \
+ exit 1; } || :
+
+# Ensure that dd's definition of LONGEST_SYMBOL stays in sync
+# with the strings from the two affected variables.
+dd_c = $(srcdir)/src/dd.c
+sc_dd_max_sym_length:
+ifneq ($(wildcard $(dd_c)),)
+ @len=$$( (sed -n '/conversions\[\] =$$/,/^};/p' $(dd_c);\
+ sed -n '/flags\[\] =$$/,/^};/p' $(dd_c) ) \
+ |sed -n '/"/s/^[^"]*"\([^"]*\)".*/\1/p' \
+ | wc --max-line-length); \
+ max=$$(sed -n '/^#define LONGEST_SYMBOL /s///p' $(dd_c) \
+ |tr -d '"' | wc --max-line-length); \
+ if test "$$len" = "$$max"; then :; else \
+ echo 'dd.c: LONGEST_SYMBOL is not longest' 1>&2; \
+ exit 1; \
+ fi
+endif
+
+# Many m4 macros names once began with `jm_'.
+# On 2004-04-13, they were all changed to start with gl_ instead.
+# Make sure that none are inadvertently reintroduced.
+sc_prohibit_jm_in_m4:
+ @grep -nE 'jm_[A-Z]' \
+ $$($(CVS_LIST) $(srcdir)/m4 |grep '\.m4$$') && \
+ { echo '$(ME): do not use jm_ in m4 macro names' \
+ 1>&2; exit 1; } || :
+
+sc_root_tests:
+ @t1=sc-root.expected; t2=sc-root.actual; \
+ grep -nl '^PRIV_CHECK_ARG=require-root' \
+ $$($(CVS_LIST) tests) |sed s,tests,., |sort > $$t1; \
+ sed -n 's, cd \([^ ]*\) .*MAKE..check TESTS=\(.*\),./\1/\2,p' \
+ $(srcdir)/tests/Makefile.am |sort > $$t2; \
+ diff -u $$t1 $$t2 || diff=1; \
+ rm -f $$t1 $$t2; \
+ test "$$diff" \
+ && { echo 'tests/Makefile.am: missing check-root action'>&2; \
+ exit 1; } || :
+
+# Create a list of regular expressions matching the names
+# of files included from system.h. Exclude a couple.
+.re-list:
+ @sed -n '/^# *include /s///p' $(srcdir)/src/system.h \
+ | grep -Ev 'sys/(param|file)\.h' \
+ | sed 's/ .*//;;s/^["<]/^# *include [<"]/;s/\.h[">]$$/\\.h[">]/' \
+ > $@-t
+ @mv $@-t $@
+
+# Files in src/ should not include directly any of
+# the headers already included via system.h.
+sc_system_h_headers: .re-list
+ @if test -f $(srcdir)/src/system.h; then \
+ trap 'rc=$$?; rm -f .re-list; exit $$rc' 0 1 2 3 15; \
+ grep -nE -f .re-list \
+ $$($(CVS_LIST) src | \
+ grep -Ev '((copy|system)\.h|parse-gram\.c)$$') \
+ && { echo '$(ME): the above are already included via system.h'\
+ 1>&2; exit 1; } || :; \
+ fi
+
+sc_sun_os_names:
+ @grep -nEi \
+ 'solaris[^[:alnum:]]*2\.(7|8|9|[1-9][0-9])|sunos[^[:alnum:]][6-9]' \
+ $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): found misuse of Sun OS version numbers' 1>&2; \
+ exit 1; } || :
+
+sc_tight_scope:
+ $(MAKE) -C src $@
+
+sc_trailing_blank:
+ @grep -n '[ ]$$' $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): found trailing blank(s)' \
+ 1>&2; exit 1; } || :
+
+sc_two_space_separator_in_usage:
+ @grep -n '^ *--[a-z][0-9A-Za-z-]* [^ ].*\\$$' \
+ $$($(CVS_LIST_EXCEPT)) && \
+ { echo "$(ME): help2man requires at least two spaces between"; \
+ echo "$(ME): an option and its description"; \
+ 1>&2; exit 1; } || :
+
+# Look for diagnostics that aren't marked for translation.
+# This won't find any for which error's format string is on a separate line.
+sc_unmarked_diagnostics:
+ @grep -nE \
+ '\<error \([^"]*"[^"]*[a-z]{3}' $$($(CVS_LIST_EXCEPT)) \
+ | grep -v '_''(' && \
+ { echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
+ exit 1; } || :
+
+# Avoid useless parentheses like those in this example:
+# #if defined (SYMBOL) || defined (SYM2)
+sc_useless_cpp_parens:
+ @grep -n '^# *if .*defined *(' $$($(CVS_LIST_EXCEPT)) && \
+ { echo '$(ME): found useless parentheses in cpp directive' \
+ 1>&2; exit 1; } || :
+
+# Ensure that date's --help output stays in sync with the info
+# documentation for GNU strftime. The only exception is %N,
+# which date accepts but GNU strftime does not.
+extract_char = sed 's/^[^%][^%]*%\(.\).*/\1/'
+strftime-check:
+ if test -f $(srcdir)/src/date.c; then \
+ grep '^ %. ' $(srcdir)/src/date.c | sort \
+ | $(extract_char) > $@-src; \
+ { echo N; \
+ info libc date calendar format | grep '^ `%.'\' \
+ | $(extract_char); } | sort > $@-info; \
+ diff -u $@-src $@-info || exit 1; \
+ rm -f $@-src $@-info; \
+ fi
+
+# Ensure that we use only the standard $(VAR) notation,
+# not @...@ in Makefile.am, now that we can rely on automake
+# to emit a definition for each substituted variable.
+makefile-check:
+ grep -nE '@[A-Z_0-9]+@' `find . -name Makefile.am` \
+ && { echo 'Makefile.maint: use $$(...), not @...@' 1>&2; exit 1; } || :
+
+news-date-check: NEWS
+ today=`date +%Y-%m-%d`; \
+ if head NEWS | grep '^\*.* $(VERSION_REGEXP) ('$$today')' \
+ >/dev/null; then \
+ :; \
+ else \
+ echo "version or today's date is not in NEWS" 1>&2; \
+ exit 1; \
+ fi
+
+changelog-check:
+ if head ChangeLog | grep 'Version $(VERSION_REGEXP)\.$$' \
+ >/dev/null; then \
+ :; \
+ else \
+ echo "$(VERSION) not in ChangeLog" 1>&2; \
+ exit 1; \
+ fi
+
+m4-check:
+ @grep -n 'AC_DEFUN([^[]' m4/*.m4 \
+ && { echo 'Makefile.maint: quote the first arg to AC_DEFUN' 1>&2; \
+ exit 1; } || :
+
+# Verify that all source files using _() are listed in po/POTFILES.in.
+# FIXME: don't hard-code file names below; use a more general mechanism.
+po-check:
+ if test -f po/POTFILES.in; then \
+ grep -E -v '^(#|$$)' po/POTFILES.in \
+ | grep -v '^src/false\.c$$' | sort > $@-1; \
+ files=; \
+ for file in $$($(CVS_LIST_EXCEPT)) lib/*.[ch]; do \
+ case $$file in \
+ djgpp/* | man/*) continue;; \
+ esac; \
+ case $$file in \
+ *.[ch]) \
+ base=`expr " $$file" : ' \(.*\)\..'`; \
+ { test -f $$base.l || test -f $$base.y; } && continue;; \
+ esac; \
+ files="$$files $$file"; \
+ done; \
+ grep -E -l '\bN?_\([^)"]*("|$$)' $$files | sort -u > $@-2; \
+ diff -u $@-1 $@-2 || exit 1; \
+ rm -f $@-1 $@-2; \
+ fi
+
+# In a definition of #define AUTHORS "... and ..." where the RHS contains
+# the English word `and', the string must be marked with `N_ (...)' so that
+# gettext recognizes it as a string requiring translation.
+author_mark_check:
+ @grep -n '^# *define AUTHORS "[^"]* and ' src/*.c |grep -v ' N_ (' && \
+ { echo 'Makefile.maint: enclose the above strings in N_ (...)' 1>&2; \
+ exit 1; } || :
+
+# Sometimes it is useful to change the PATH environment variable
+# in Makefiles. When doing so, it's better not to use the Unix-centric
+# path separator of `:', but rather the automake-provided `@PATH_SEPARATOR@'.
+# It'd be better to use `find -print0 ...|xargs -0 ...', but less portable,
+# and there probably aren't many projects with so many Makefile.am files
+# that we'd have to worry about limits on command line length.
+msg = 'Makefile.maint: Do not use `:'\'' above; use @PATH_SEPARATOR@ instead'
+makefile_path_separator_check:
+ @grep -n 'PATH=.*:' `find $(srcdir) -name Makefile.am` \
+ && { echo $(msg) 1>&2; exit 1; } || :
+
+# Check that `make alpha' will not fail at the end of the process.
+writable-files:
+ if test -d $(release_archive_dir); then :; else \
+ mkdir $(release_archive_dir); \
+ fi
+ for file in $(distdir).tar.gz $(xd-delta) \
+ $(release_archive_dir)/$(distdir).tar.gz \
+ $(release_archive_dir)/$(xd-delta); do \
+ test -e $$file || continue; \
+ test -w $$file \
+ || { echo ERROR: $$file is not writable; fail=1; }; \
+ done; \
+ test "$$fail" && exit 1 || :
+
+v_etc_file = lib/version-etc.c
+# Make sure that the copyright date in $(v_etc_file) is up to date.
+copyright-check:
+ @if test -f $(v_etc_file); then \
+ grep 'enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' $(v_etc_file) \
+ >/dev/null \
+ || { echo 'out of date copyright in $(v_etc_file); update it' 1>&2; \
+ exit 1; }; \
+ fi
+
+
+# Sanity checks with the CVS repository.
+cvs-tag-check:
+ echo $(this-cvs-tag); \
+ if $(CVS) -n log -h README | grep -e $(this-cvs-tag): >/dev/null; then \
+ echo "$(this-cvs-tag) as already been used; not tagging" 1>&2; \
+ exit 1; \
+ else :; fi
+
+cvs-diff-check:
+ if $(CVS) diff >cvs-diffs; then \
+ rm cvs-diffs; \
+ else \
+ echo "Some files are locally modified:" 1>&2; \
+ cat cvs-diffs; \
+ exit 1; \
+ fi
+
+cvs-check: cvs-diff-check cvs-tag-check
+
+maintainer-distcheck: changelog-check
+ $(MAKE) distcheck
+ $(MAKE) my-distcheck
+
+
+# Tag before making distribution. Also, don't make a distribution if
+# checks fail. Also, make sure the NEWS file is up-to-date.
+# FIXME: use dist-hook/my-dist like distcheck-hook/my-distcheck.
+cvs-dist: $(local-check) cvs-check maintainer-distcheck
+ $(CVS) update po
+ $(CVS) tag -c $(this-cvs-tag)
+ $(MAKE) dist
+
+# Use this to make sure we don't run these programs when building
+# from a virgin tgz file, below.
+null_AM_MAKEFLAGS = \
+ ACLOCAL=false \
+ AUTOCONF=false \
+ AUTOMAKE=false \
+ AUTOHEADER=false \
+ MAKEINFO=false
+
+# Detect format-string/arg-list mismatches that would normally be obscured
+# by the use of _(). The --disable-nls effectively defines away that macro,
+# and building with CFLAGS='-Wformat -Werror' causes any format warning to be
+# treated as a failure. Also, check for shadowing problems with -Wshadow.
+# These CFLAGS are pretty strict. If you build this target, you probably
+# have to have a recent version of gcc and glibc headers.
+TMPDIR ?= /tmp
+t=$(TMPDIR)/$(PACKAGE)/test
+my-distcheck: $(local-check) $(release_archive_dir)/$(prev-tgz)
+ -rm -rf $(t)
+ mkdir -p $(t)
+ GZIP=$(GZIP_ENV) $(AMTAR) -C $(t) -zxf $(distdir).tar.gz
+ cd $(t)/$(distdir) \
+ && ./configure --disable-nls \
+ && $(MAKE) CFLAGS='-Werror -Wall -Wformat -Wshadow' \
+ AM_MAKEFLAGS='$(null_AM_MAKEFLAGS)' \
+ && $(MAKE) dvi \
+ && $(MAKE) check \
+ && $(MAKE) distclean
+ (cd $(t) && mv $(distdir) $(distdir).old \
+ && $(AMTAR) -zxf - ) < $(distdir).tar.gz
+ diff -ur $(t)/$(distdir).old $(t)/$(distdir)
+ -rm -rf $(t)
+ @echo "========================"; \
+ echo "$(distdir).tar.gz is ready for distribution"; \
+ echo "========================"
+
+WGET = wget
+WGETFLAGS = -C off
+
+rel-check:
+ tarz=/tmp/rel-check-tarz-$$$$; \
+ md5_tmp=/tmp/rel-check-md5-$$$$; \
+ set -e; \
+ trap 'status=$$?; rm -f $$tarz $$md5_tmp; exit $$status' 0 1 2 3 15; \
+ $(WGET) $(WGETFLAGS) -q --output-document=$$tarz $(url); \
+ echo "$(md5) -" > $$md5_tmp; \
+ md5sum -c $$md5_tmp < $$tarz
+
+prev-tgz = $(PACKAGE)-$(PREV_VERSION).tar.gz
+xd-delta = $(PACKAGE)-$(PREV_VERSION)-$(VERSION).xdelta
+
+rel-files = $(xd-delta) $(DIST_ARCHIVES)
+announcement: NEWS ChangeLog $(rel-files)
+ @./announce-gen \
+ --release-type=$(RELEASE_TYPE) \
+ --package=$(PACKAGE) \
+ --prev=$(PREV_VERSION) \
+ --curr=$(VERSION) \
+ --release-archive-directory=$(release_archive_dir) \
+ --gpg-key-id=$(gpg_key_ID) \
+ --news=NEWS \
+ $(addprefix --url-dir=, $(url_dir_list)) \
+
+
+## ---------------- ##
+## Updating files. ##
+## ---------------- ##
+
+ftp-gnu = ftp://ftp.gnu.org/gnu
+www-gnu = http://www.gnu.org
+
+# Use mv, if you don't have/want move-if-change.
+move_if_change ?= move-if-change
+
+
+# --------------------- #
+# Updating everything. #
+# --------------------- #
+
+.PHONY: update
+local_updates ?= wget-update cvs-update po-update
+update: $(local_updates)
+
+
+# ------------------- #
+# Updating PO files. #
+# ------------------- #
+
+po_repo = http://www.iro.umontreal.ca/contrib/po/maint/$(PACKAGE)
+.PHONY: do-po-update po-update
+do-po-update:
+ tmppo=/tmp/$(PACKAGE)-$(VERSION)-po &&\
+ rm -rf $$tmppo && \
+ mkdir $$tmppo && \
+ (cd $$tmppo && \
+ $(WGET) $(WGETFLAGS) -r -l1 -nd --no-parent -A '*.po' $(po_repo)) &&\
+ cp $$tmppo/*.po po
+ cd po && $(MAKE) update-po
+ $(MAKE) po-check
+
+po-update:
+ if test -d "po"; then \
+ $(MAKE) do-po-update; \
+ fi
+
+# -------------------------- #
+# Updating GNU build tools. #
+# -------------------------- #
+
+# The following pseudo table associates a local directory and a URL
+# with each of the files that belongs to some other package and is
+# regularly updated from the specified URL.
+wget_files ?= \
+ $(srcdir)/build-aux/config.guess \
+ $(srcdir)/build-aux/config.sub \
+ $(srcdir)/build-aux/texinfo.tex \
+ $(srcdir)/src/ansi2knr.c
+
+get-targets = $(patsubst %, get-%, $(wget_files))
+
+config.guess-url_prefix = $(ftp-gnu)/build-aux/
+config.sub-url_prefix = $(ftp-gnu)/build-aux/
+
+ansi2knr.c-url_prefix = ftp://ftp.cs.wisc.edu/ghost/
+
+texinfo.tex-url_prefix = $(ftp-gnu)/texinfo/
+
+standards.texi-url_prefix = $(www-gnu)/prep/
+make-stds.texi-url_prefix = $(standards.texi-url_prefix)
+
+target = $(patsubst get-%, %, $@)
+url = $($(notdir $(target))-url_prefix)$(notdir $(target))
+
+.PHONY: $(get-targets)
+$(get-targets):
+ $(WGET) $(WGETFLAGS) $(url) -O $(target).t \
+ && $(move_if_change) $(target).t $(target)
+
+cvs_files ?= \
+ $(srcdir)/build-aux/depcomp \
+ $(srcdir)/build-aux/install-sh \
+ $(srcdir)/build-aux/missing \
+ $(srcdir)/build-aux/mkinstalldirs \
+ $(srcdir)/src/ansi2knr.c
+automake_repo=:pserver:anoncvs:anoncvs@sources.redhat.com:/cvs/automake
+.PHONY: wget-update
+wget-update: $(get-targets)
+
+.PHONY: cvs-update
+cvs-update:
+ fail=; \
+ for f in $(cvs_files); do \
+ test -f $$f || { echo "*** skipping $$f" 1>&2; continue; }; \
+ cvs diff $$f > /dev/null \
+ || { echo "*** $$f is locally modified; skipping it" 1>&2; \
+ fail=yes; continue; }; \
+ file=$$(basename $$f); \
+ echo checking out $$file...; \
+ $(CVS) -d $(automake_repo) co -p automake/lib/$$file> $$f.t \
+ && $(move_if_change) $$f.t $$f; \
+ done; \
+ test "$$fail" && exit 1
+
+emit_upload_commands:
+ @echo =====================================
+ @echo =====================================
+ @echo "$(srcdir)/gnupload $(GNUPLOADFLAGS) \\"
+ @echo " --to $(gnu_rel_host):coreutils \\"
+ @echo " $(rel-files)"
+ @echo '# send the /tmp/announcement e-mail'
+ @echo =====================================
+ @echo =====================================
+
+$(xd-delta): $(release_archive_dir)/$(prev-tgz) $(distdir).tar.gz
+ xdelta delta -9 $^ $@ || :
+
+.PHONY: alpha beta major
+alpha beta major: news-date-check $(local-check)
+ $(MAKE) cvs-dist
+ $(MAKE) $(xd-delta)
+ $(MAKE) -s announcement RELEASE_TYPE=$@ > /tmp/announce-$(my_distdir)
+ ln $(rel-files) $(release_archive_dir)
+ chmod a-w $(rel-files)
+ $(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
+ echo $(VERSION) > $(prev_version_file)
+ $(CVS) ci -m. $(prev_version_file)
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..3dca4fe
--- /dev/null
+++ b/NEWS
@@ -0,0 +1,732 @@
+Bison News
+----------
+
+Changes in version 2.3, 2006-06-05:
+
+* GLR grammars should now use `YYRECOVERING ()' instead of `YYRECOVERING',
+ for compatibility with LALR(1) grammars.
+
+* It is now documented that any definition of YYSTYPE or YYLTYPE should
+ be to a type name that does not contain parentheses or brackets.
+
+Changes in version 2.2, 2006-05-19:
+
+* The distribution terms for all Bison-generated parsers now permit
+ using the parsers in nonfree programs. Previously, this permission
+ was granted only for Bison-generated LALR(1) parsers in C.
+
+* %name-prefix changes the namespace name in C++ outputs.
+
+* The C++ parsers export their token_type.
+
+* Bison now allows multiple %union declarations, and concatenates
+ their contents together.
+
+* New warning: unused values
+ Right-hand side symbols whose values are not used are reported,
+ if the symbols have destructors. For instance:
+
+ exp: exp "?" exp ":" exp { $1 ? $1 : $3; }
+ | exp "+" exp
+ ;
+
+ will trigger a warning about $$ and $5 in the first rule, and $3 in
+ the second ($1 is copied to $$ by the default rule). This example
+ most likely contains three errors, and could be rewritten as:
+
+ exp: exp "?" exp ":" exp
+ { $$ = $1 ? $3 : $5; free ($1 ? $5 : $3); free ($1); }
+ | exp "+" exp
+ { $$ = $1 ? $1 : $3; if ($1) free ($3); }
+ ;
+
+ However, if the original actions were really intended, memory leaks
+ and all, the warnings can be suppressed by letting Bison believe the
+ values are used, e.g.:
+
+ exp: exp "?" exp ":" exp { $1 ? $1 : $3; (void) ($$, $5); }
+ | exp "+" exp { $$ = $1; (void) $3; }
+ ;
+
+ If there are mid-rule actions, the warning is issued if no action
+ uses it. The following triggers no warning: $1 and $3 are used.
+
+ exp: exp { push ($1); } '+' exp { push ($3); sum (); };
+
+ The warning is intended to help catching lost values and memory leaks.
+ If a value is ignored, its associated memory typically is not reclaimed.
+
+* %destructor vs. YYABORT, YYACCEPT, and YYERROR.
+ Destructors are now called when user code invokes YYABORT, YYACCEPT,
+ and YYERROR, for all objects on the stack, other than objects
+ corresponding to the right-hand side of the current rule.
+
+* %expect, %expect-rr
+ Incorrect numbers of expected conflicts are now actual errors,
+ instead of warnings.
+
+* GLR, YACC parsers.
+ The %parse-params are available in the destructors (and the
+ experimental printers) as per the documentation.
+
+* Bison now warns if it finds a stray `$' or `@' in an action.
+
+* %require "VERSION"
+ This specifies that the grammar file depends on features implemented
+ in Bison version VERSION or higher.
+
+* lalr1.cc: The token and value types are now class members.
+ The tokens were defined as free form enums and cpp macros. YYSTYPE
+ was defined as a free form union. They are now class members:
+ tokens are enumerations of the `yy::parser::token' struct, and the
+ semantic values have the `yy::parser::semantic_type' type.
+
+ If you do not want or can update to this scheme, the directive
+ `%define "global_tokens_and_yystype" "1"' triggers the global
+ definition of tokens and YYSTYPE. This change is suitable both
+ for previous releases of Bison, and this one.
+
+ If you wish to update, then make sure older version of Bison will
+ fail using `%require "2.2"'.
+
+* DJGPP support added.
+
+Changes in version 2.1, 2005-09-16:
+
+* The C++ lalr1.cc skeleton supports %lex-param.
+
+* Bison-generated parsers now support the translation of diagnostics like
+ "syntax error" into languages other than English. The default
+ language is still English. For details, please see the new
+ Internationalization section of the Bison manual. Software
+ distributors should also see the new PACKAGING file. Thanks to
+ Bruno Haible for this new feature.
+
+* Wording in the Bison-generated parsers has been changed slightly to
+ simplify translation. In particular, the message "memory exhausted"
+ has replaced "parser stack overflow", as the old message was not
+ always accurate for modern Bison-generated parsers.
+
+* Destructors are now called when the parser aborts, for all symbols left
+ behind on the stack. Also, the start symbol is now destroyed after a
+ successful parse. In both cases, the behavior was formerly inconsistent.
+
+* When generating verbose diagnostics, Bison-generated parsers no longer
+ quote the literal strings associated with tokens. For example, for
+ a syntax error associated with '%token NUM "number"' they might
+ print 'syntax error, unexpected number' instead of 'syntax error,
+ unexpected "number"'.
+
+Changes in version 2.0, 2004-12-25:
+
+* Possibly-incompatible changes
+
+ - Bison-generated parsers no longer default to using the alloca function
+ (when available) to extend the parser stack, due to widespread
+ problems in unchecked stack-overflow detection. You can "#define
+ YYSTACK_USE_ALLOCA 1" to require the use of alloca, but please read
+ the manual to determine safe values for YYMAXDEPTH in that case.
+
+ - Error token location.
+ During error recovery, the location of the syntax error is updated
+ to cover the whole sequence covered by the error token: it includes
+ the shifted symbols thrown away during the first part of the error
+ recovery, and the lookahead rejected during the second part.
+
+ - Semicolon changes:
+ . Stray semicolons are no longer allowed at the start of a grammar.
+ . Semicolons are now required after in-grammar declarations.
+
+ - Unescaped newlines are no longer allowed in character constants or
+ string literals. They were never portable, and GCC 3.4.0 has
+ dropped support for them. Better diagnostics are now generated if
+ forget a closing quote.
+
+ - NUL bytes are no longer allowed in Bison string literals, unfortunately.
+
+* New features
+
+ - GLR grammars now support locations.
+
+ - New directive: %initial-action.
+ This directive allows the user to run arbitrary code (including
+ initializing @$) from yyparse before parsing starts.
+
+ - A new directive "%expect-rr N" specifies the expected number of
+ reduce/reduce conflicts in GLR parsers.
+
+ - %token numbers can now be hexadecimal integers, e.g., `%token FOO 0x12d'.
+ This is a GNU extension.
+
+ - The option `--report=lookahead' was changed to `--report=look-ahead'.
+ The old spelling still works, but is not documented and will be
+ removed.
+
+ - Experimental %destructor support has been added to lalr1.cc.
+
+ - New configure option --disable-yacc, to disable installation of the
+ yacc command and -ly library introduced in 1.875 for POSIX conformance.
+
+* Bug fixes
+
+ - For now, %expect-count violations are now just warnings, not errors.
+ This is for compatibility with Bison 1.75 and earlier (when there are
+ reduce/reduce conflicts) and with Bison 1.30 and earlier (when there
+ are too many or too few shift/reduce conflicts). However, in future
+ versions of Bison we plan to improve the %expect machinery so that
+ these violations will become errors again.
+
+ - Within Bison itself, numbers (e.g., goto numbers) are no longer
+ arbitrarily limited to 16-bit counts.
+
+ - Semicolons are now allowed before "|" in grammar rules, as POSIX requires.
+
+Changes in version 1.875, 2003-01-01:
+
+* The documentation license has been upgraded to version 1.2
+ of the GNU Free Documentation License.
+
+* syntax error processing
+
+ - In Yacc-style parsers YYLLOC_DEFAULT is now used to compute error
+ locations too. This fixes bugs in error-location computation.
+
+ - %destructor
+ It is now possible to reclaim the memory associated to symbols
+ discarded during error recovery. This feature is still experimental.
+
+ - %error-verbose
+ This new directive is preferred over YYERROR_VERBOSE.
+
+ - #defining yyerror to steal internal variables is discouraged.
+ It is not guaranteed to work forever.
+
+* POSIX conformance
+
+ - Semicolons are once again optional at the end of grammar rules.
+ This reverts to the behavior of Bison 1.33 and earlier, and improves
+ compatibility with Yacc.
+
+ - `parse error' -> `syntax error'
+ Bison now uniformly uses the term `syntax error'; formerly, the code
+ and manual sometimes used the term `parse error' instead. POSIX
+ requires `syntax error' in diagnostics, and it was thought better to
+ be consistent.
+
+ - The documentation now emphasizes that yylex and yyerror must be
+ declared before use. C99 requires this.
+
+ - Bison now parses C99 lexical constructs like UCNs and
+ backslash-newline within C escape sequences, as POSIX 1003.1-2001 requires.
+
+ - File names are properly escaped in C output. E.g., foo\bar.y is
+ output as "foo\\bar.y".
+
+ - Yacc command and library now available
+ The Bison distribution now installs a `yacc' command, as POSIX requires.
+ Also, Bison now installs a small library liby.a containing
+ implementations of Yacc-compatible yyerror and main functions.
+ This library is normally not useful, but POSIX requires it.
+
+ - Type clashes now generate warnings, not errors.
+
+ - If the user does not define YYSTYPE as a macro, Bison now declares it
+ using typedef instead of defining it as a macro.
+ For consistency, YYLTYPE is also declared instead of defined.
+
+* Other compatibility issues
+
+ - %union directives can now have a tag before the `{', e.g., the
+ directive `%union foo {...}' now generates the C code
+ `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
+ The default union tag is `YYSTYPE', for compatibility with Solaris 9 Yacc.
+ For consistency, YYLTYPE's struct tag is now `YYLTYPE' not `yyltype'.
+ This is for compatibility with both Yacc and Bison 1.35.
+
+ - `;' is output before the terminating `}' of an action, for
+ compatibility with Bison 1.35.
+
+ - Bison now uses a Yacc-style format for conflict reports, e.g.,
+ `conflicts: 2 shift/reduce, 1 reduce/reduce'.
+
+ - `yystype' and `yyltype' are now obsolescent macros instead of being
+ typedefs or tags; they are no longer documented and are planned to be
+ withdrawn in a future release.
+
+* GLR parser notes
+
+ - GLR and inline
+ Users of Bison have to decide how they handle the portability of the
+ C keyword `inline'.
+
+ - `parsing stack overflow...' -> `parser stack overflow'
+ GLR parsers now report `parser stack overflow' as per the Bison manual.
+
+* Bison now warns if it detects conflicting outputs to the same file,
+ e.g., it generates a warning for `bison -d -o foo.h foo.y' since
+ that command outputs both code and header to foo.h.
+
+* #line in output files
+ - --no-line works properly.
+
+* Bison can no longer be built by a K&R C compiler; it requires C89 or
+ later to be built. This change originally took place a few versions
+ ago, but nobody noticed until we recently asked someone to try
+ building Bison with a K&R C compiler.
+
+Changes in version 1.75, 2002-10-14:
+
+* Bison should now work on 64-bit hosts.
+
+* Indonesian translation thanks to Tedi Heriyanto.
+
+* GLR parsers
+ Fix spurious parse errors.
+
+* Pure parsers
+ Some people redefine yyerror to steal yyparse' private variables.
+ Reenable this trick until an official feature replaces it.
+
+* Type Clashes
+ In agreement with POSIX and with other Yaccs, leaving a default
+ action is valid when $$ is untyped, and $1 typed:
+
+ untyped: ... typed;
+
+ but the converse remains an error:
+
+ typed: ... untyped;
+
+* Values of mid-rule actions
+ The following code:
+
+ foo: { ... } { $$ = $1; } ...
+
+ was incorrectly rejected: $1 is defined in the second mid-rule
+ action, and is equal to the $$ of the first mid-rule action.
+
+Changes in version 1.50, 2002-10-04:
+
+* GLR parsing
+ The declaration
+ %glr-parser
+ causes Bison to produce a Generalized LR (GLR) parser, capable of handling
+ almost any context-free grammar, ambiguous or not. The new declarations
+ %dprec and %merge on grammar rules allow parse-time resolution of
+ ambiguities. Contributed by Paul Hilfinger.
+
+ Unfortunately Bison 1.50 does not work properly on 64-bit hosts
+ like the Alpha, so please stick to 32-bit hosts for now.
+
+* Output Directory
+ When not in Yacc compatibility mode, when the output file was not
+ specified, running `bison foo/bar.y' created `foo/bar.c'. It
+ now creates `bar.c'.
+
+* Undefined token
+ The undefined token was systematically mapped to 2 which prevented
+ the use of 2 by the user. This is no longer the case.
+
+* Unknown token numbers
+ If yylex returned an out of range value, yyparse could die. This is
+ no longer the case.
+
+* Error token
+ According to POSIX, the error token must be 256.
+ Bison extends this requirement by making it a preference: *if* the
+ user specified that one of her tokens is numbered 256, then error
+ will be mapped onto another number.
+
+* Verbose error messages
+ They no longer report `..., expecting error or...' for states where
+ error recovery is possible.
+
+* End token
+ Defaults to `$end' instead of `$'.
+
+* Error recovery now conforms to documentation and to POSIX
+ When a Bison-generated parser encounters a syntax error, it now pops
+ the stack until it finds a state that allows shifting the error
+ token. Formerly, it popped the stack until it found a state that
+ allowed some non-error action other than a default reduction on the
+ error token. The new behavior has long been the documented behavior,
+ and has long been required by POSIX. For more details, please see
+ Paul Eggert, "Reductions during Bison error handling" (2002-05-20)
+ <http://lists.gnu.org/archive/html/bug-bison/2002-05/msg00038.html>.
+
+* Traces
+ Popped tokens and nonterminals are now reported.
+
+* Larger grammars
+ Larger grammars are now supported (larger token numbers, larger grammar
+ size (= sum of the LHS and RHS lengths), larger LALR tables).
+ Formerly, many of these numbers ran afoul of 16-bit limits;
+ now these limits are 32 bits on most hosts.
+
+* Explicit initial rule
+ Bison used to play hacks with the initial rule, which the user does
+ not write. It is now explicit, and visible in the reports and
+ graphs as rule 0.
+
+* Useless rules
+ Before, Bison reported the useless rules, but, although not used,
+ included them in the parsers. They are now actually removed.
+
+* Useless rules, useless nonterminals
+ They are now reported, as a warning, with their locations.
+
+* Rules never reduced
+ Rules that can never be reduced because of conflicts are now
+ reported.
+
+* Incorrect `Token not used'
+ On a grammar such as
+
+ %token useless useful
+ %%
+ exp: '0' %prec useful;
+
+ where a token was used to set the precedence of the last rule,
+ bison reported both `useful' and `useless' as useless tokens.
+
+* Revert the C++ namespace changes introduced in 1.31
+ as they caused too many portability hassles.
+
+* Default locations
+ By an accident of design, the default computation of @$ was
+ performed after another default computation was performed: @$ = @1.
+ The latter is now removed: YYLLOC_DEFAULT is fully responsible of
+ the computation of @$.
+
+* Token end-of-file
+ The token end of file may be specified by the user, in which case,
+ the user symbol is used in the reports, the graphs, and the verbose
+ error messages instead of `$end', which remains being the default.
+ For instance
+ %token MYEOF 0
+ or
+ %token MYEOF 0 "end of file"
+
+* Semantic parser
+ This old option, which has been broken for ages, is removed.
+
+* New translations
+ Brazilian Portuguese, thanks to Alexandre Folle de Menezes.
+ Croatian, thanks to Denis Lackovic.
+
+* Incorrect token definitions
+ When given `%token 'a' "A"', Bison used to output `#define 'a' 65'.
+
+* Token definitions as enums
+ Tokens are output both as the traditional #define's, and, provided
+ the compiler supports ANSI C or is a C++ compiler, as enums.
+ This lets debuggers display names instead of integers.
+
+* Reports
+ In addition to --verbose, bison supports --report=THINGS, which
+ produces additional information:
+ - itemset
+ complete the core item sets with their closure
+ - lookahead [changed to `look-ahead' in 1.875e and later]
+ explicitly associate look-ahead tokens to items
+ - solved
+ describe shift/reduce conflicts solving.
+ Bison used to systematically output this information on top of
+ the report. Solved conflicts are now attached to their states.
+
+* Type clashes
+ Previous versions don't complain when there is a type clash on
+ the default action if the rule has a mid-rule action, such as in:
+
+ %type <foo> bar
+ %%
+ bar: '0' {} '0';
+
+ This is fixed.
+
+* GNU M4 is now required when using Bison.
+
+Changes in version 1.35, 2002-03-25:
+
+* C Skeleton
+ Some projects use Bison's C parser with C++ compilers, and define
+ YYSTYPE as a class. The recent adjustment of C parsers for data
+ alignment and 64 bit architectures made this impossible.
+
+ Because for the time being no real solution for C++ parser
+ generation exists, kludges were implemented in the parser to
+ maintain this use. In the future, when Bison has C++ parsers, this
+ kludge will be disabled.
+
+ This kludge also addresses some C++ problems when the stack was
+ extended.
+
+Changes in version 1.34, 2002-03-12:
+
+* File name clashes are detected
+ $ bison foo.y -d -o foo.x
+ fatal error: header and parser would both be named `foo.x'
+
+* A missing `;' at the end of a rule triggers a warning
+ In accordance with POSIX, and in agreement with other
+ Yacc implementations, Bison will mandate this semicolon in the near
+ future. This eases the implementation of a Bison parser of Bison
+ grammars by making this grammar LALR(1) instead of LR(2). To
+ facilitate the transition, this release introduces a warning.
+
+* Revert the C++ namespace changes introduced in 1.31, as they caused too
+ many portability hassles.
+
+* DJGPP support added.
+
+* Fix test suite portability problems.
+
+Changes in version 1.33, 2002-02-07:
+
+* Fix C++ issues
+ Groff could not be compiled for the definition of size_t was lacking
+ under some conditions.
+
+* Catch invalid @n
+ As is done with $n.
+
+Changes in version 1.32, 2002-01-23:
+
+* Fix Yacc output file names
+
+* Portability fixes
+
+* Italian, Dutch translations
+
+Changes in version 1.31, 2002-01-14:
+
+* Many Bug Fixes
+
+* GNU Gettext and %expect
+ GNU Gettext asserts 10 s/r conflicts, but there are 7. Now that
+ Bison dies on incorrect %expectations, we fear there will be
+ too many bug reports for Gettext, so _for the time being_, %expect
+ does not trigger an error when the input file is named `plural.y'.
+
+* Use of alloca in parsers
+ If YYSTACK_USE_ALLOCA is defined to 0, then the parsers will use
+ malloc exclusively. Since 1.29, but was not NEWS'ed.
+
+ alloca is used only when compiled with GCC, to avoid portability
+ problems as on AIX.
+
+* yyparse now returns 2 if memory is exhausted; formerly it dumped core.
+
+* When the generated parser lacks debugging code, YYDEBUG is now 0
+ (as POSIX requires) instead of being undefined.
+
+* User Actions
+ Bison has always permitted actions such as { $$ = $1 }: it adds the
+ ending semicolon. Now if in Yacc compatibility mode, the semicolon
+ is no longer output: one has to write { $$ = $1; }.
+
+* Better C++ compliance
+ The output parsers try to respect C++ namespaces.
+ [This turned out to be a failed experiment, and it was reverted later.]
+
+* Reduced Grammars
+ Fixed bugs when reporting useless nonterminals.
+
+* 64 bit hosts
+ The parsers work properly on 64 bit hosts.
+
+* Error messages
+ Some calls to strerror resulted in scrambled or missing error messages.
+
+* %expect
+ When the number of shift/reduce conflicts is correct, don't issue
+ any warning.
+
+* The verbose report includes the rule line numbers.
+
+* Rule line numbers are fixed in traces.
+
+* Swedish translation
+
+* Parse errors
+ Verbose parse error messages from the parsers are better looking.
+ Before: parse error: unexpected `'/'', expecting `"number"' or `'-'' or `'(''
+ Now: parse error: unexpected '/', expecting "number" or '-' or '('
+
+* Fixed parser memory leaks.
+ When the generated parser was using malloc to extend its stacks, the
+ previous allocations were not freed.
+
+* Fixed verbose output file.
+ Some newlines were missing.
+ Some conflicts in state descriptions were missing.
+
+* Fixed conflict report.
+ Option -v was needed to get the result.
+
+* %expect
+ Was not used.
+ Mismatches are errors, not warnings.
+
+* Fixed incorrect processing of some invalid input.
+
+* Fixed CPP guards: 9foo.h uses BISON_9FOO_H instead of 9FOO_H.
+
+* Fixed some typos in the documentation.
+
+* %token MY_EOF 0 is supported.
+ Before, MY_EOF was silently renumbered as 257.
+
+* doc/refcard.tex is updated.
+
+* %output, %file-prefix, %name-prefix.
+ New.
+
+* --output
+ New, aliasing `--output-file'.
+
+Changes in version 1.30, 2001-10-26:
+
+* `--defines' and `--graph' have now an optional argument which is the
+ output file name. `-d' and `-g' do not change; they do not take any
+ argument.
+
+* `%source_extension' and `%header_extension' are removed, failed
+ experiment.
+
+* Portability fixes.
+
+Changes in version 1.29, 2001-09-07:
+
+* The output file does not define const, as this caused problems when used
+ with common autoconfiguration schemes. If you still use ancient compilers
+ that lack const, compile with the equivalent of the C compiler option
+ `-Dconst='. autoconf's AC_C_CONST macro provides one way to do this.
+
+* Added `-g' and `--graph'.
+
+* The Bison manual is now distributed under the terms of the GNU FDL.
+
+* The input and the output files has automatically a similar extension.
+
+* Russian translation added.
+
+* NLS support updated; should hopefully be less troublesome.
+
+* Added the old Bison reference card.
+
+* Added `--locations' and `%locations'.
+
+* Added `-S' and `--skeleton'.
+
+* `%raw', `-r', `--raw' is disabled.
+
+* Special characters are escaped when output. This solves the problems
+ of the #line lines with path names including backslashes.
+
+* New directives.
+ `%yacc', `%fixed_output_files', `%defines', `%no_parser', `%verbose',
+ `%debug', `%source_extension' and `%header_extension'.
+
+* @$
+ Automatic location tracking.
+
+Changes in version 1.28, 1999-07-06:
+
+* Should compile better now with K&R compilers.
+
+* Added NLS.
+
+* Fixed a problem with escaping the double quote character.
+
+* There is now a FAQ.
+
+Changes in version 1.27:
+
+* The make rule which prevented bison.simple from being created on
+ some systems has been fixed.
+
+Changes in version 1.26:
+
+* Bison now uses automake.
+
+* New mailing lists: <bug-bison@gnu.org> and <help-bison@gnu.org>.
+
+* Token numbers now start at 257 as previously documented, not 258.
+
+* Bison honors the TMPDIR environment variable.
+
+* A couple of buffer overruns have been fixed.
+
+* Problems when closing files should now be reported.
+
+* Generated parsers should now work even on operating systems which do
+ not provide alloca().
+
+Changes in version 1.25, 1995-10-16:
+
+* Errors in the input grammar are not fatal; Bison keeps reading
+the grammar file, and reports all the errors found in it.
+
+* Tokens can now be specified as multiple-character strings: for
+example, you could use "<=" for a token which looks like <=, instead
+of chosing a name like LESSEQ.
+
+* The %token_table declaration says to write a table of tokens (names
+and numbers) into the parser file. The yylex function can use this
+table to recognize multiple-character string tokens, or for other
+purposes.
+
+* The %no_lines declaration says not to generate any #line preprocessor
+directives in the parser file.
+
+* The %raw declaration says to use internal Bison token numbers, not
+Yacc-compatible token numbers, when token names are defined as macros.
+
+* The --no-parser option produces the parser tables without including
+the parser engine; a project can now use its own parser engine.
+The actions go into a separate file called NAME.act, in the form of
+a switch statement body.
+
+Changes in version 1.23:
+
+The user can define YYPARSE_PARAM as the name of an argument to be
+passed into yyparse. The argument should have type void *. It should
+actually point to an object. Grammar actions can access the variable
+by casting it to the proper pointer type.
+
+Line numbers in output file corrected.
+
+Changes in version 1.22:
+
+--help option added.
+
+Changes in version 1.20:
+
+Output file does not redefine const for C++.
+
+Local Variables:
+mode: outline
+End:
+
+-----
+
+Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+2004, 2005, 2006 Free Software Foundation, Inc.
+
+This file is part of Bison, the GNU Compiler Compiler.
+
+Bison is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+Bison is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with autoconf; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
diff --git a/OChangeLog b/OChangeLog
new file mode 100644
index 0000000..5ae60b9
--- /dev/null
+++ b/OChangeLog
@@ -0,0 +1,1500 @@
+1998-01-04 J.J. van der Heijden <J.J.vanderHeijden@student.utwente.nl>
+
+ * src/files.c (openfiles) [_WIN32 && !__CYGWIN32__]: Use TEMP or
+ Temp to find a temporary directory, if possible. Do not unlink
+ files while they are open.
+
+1997-08-25 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/reader.c (stack_offset;): Change some warni to warns.
+
+ * src/lex.c (literalchar): Use warns, not warni.
+
+1997-06-28 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple: Add a Bison version comment.
+
+ * Makefile.in (bison_version): New variable.
+ (dist): Use that variable.
+ (bison.s1): Substitute the Bison version into bison.simple.
+
+ * src/main.c (fatal, warn, berror): Use program_name.
+
+1997-06-18 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * Makefile.in: new.h renamed to alloc.h.
+ * src/*.c: src/new.h renamed to src/alloc.h.
+
+ * src/alloc.h: Renamed from src/new.h.
+
+1997-06-15 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/main.c (fatal, warn, berror): Make error messages standard.
+ (toomany): Improve error message text.
+
+1997-05-24 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/lex.c (literalchar): Fix the code for escaping \, " and '.
+
+1997-05-23 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/lex.c (lex): Avoid trouble when there are many chars
+ to discard in a char literal with just several chars in it.
+
+1997-05-17 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple: Use malloc, if using alloca is troublesome.
+ (YYSTACK_USE_ALLOCA): New flag macro.
+ Define it for some systems and compilers.
+ (YYSTACK_ALLOC): New macro.
+ (yyparse): Use YYSTACK_ALLOC to allocate stack.
+ If it was malloc'd, free it.
+
+1997-05-02 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple [_AIX]: Don't include malloc.h.
+
+1997-04-23 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple (alloca) [__hpux]: Always define as
+ __builtin_alloca.
+
+1997-04-22 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple (__yy_memcpy): Declare arg `count' as unsigned
+ int.
+ (yyparse): Cast third arg to __yy_memcpy to unsigned int.
+
+ * src/bison.simple (alloca) [__hpux]: Include alloca.h (right for
+ HPUX 10) instead of declaring alloca (right for HPUX 9).
+
+1997-01-02 Richard Stallman <rms@ethanol.gnu.ai.mit.edu>
+
+ * src/allocate.c [__STDC__ or _MSC_VER]:
+ Declare calloc and realloc to return void *.
+
+ * Makefile.in (dist): Explicitly check for symlinks, and copy them.
+
+1996-12-17 Paul Eggert <eggert@twinsun.com>
+
+ * src/bison.simple (yyparse): If __GNUC__ and YYPARSE_PARAM are
+ both defined, declare yyparse to have a void * argument.
+
+1996-12-17 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/system.h [_MSC_VER]: Include stdlib.h and process.h.
+ [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
+
+ * src/reduce.c (nbits): Add some casts.
+
+ * src/main.c (main): Return FAILURE as a value.
+ (printable_version): Declare arg as int, not char.
+
+ * src/files.c [_MSC_VER] (XPFILE, XPFILE1): Define, if not already
+ defined.
+
+1996-12-16 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/main.c (printable_version): Use type `int' for the arg.
+
+1996-08-12 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple: Test _MSDOS as well as _MSDOS_.
+
+1996-07-31 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple [__sun && __i386]: Include alloca.h.
+
+1996-07-30 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * src/bison.simple: Test _MSDOS_, not MSDOS.
+
+1996-06-01 Richard Stallman <rms@psilocin.gnu.ai.mit.edu>
+
+ * All files: Insert `_' macro around many string constants.
+
+ * src/system.h [HAVE_LOCALE_H]: Include locale.h.
+ [! HAVE_LOCALE_H] (setlocale): Define as no-op.
+ [ENABLE_NLS]: Include libintl.h.
+ [ENABLE_NLS] (gettext): Define.
+ [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
+ (N_, PACKAGE, LOCALEDIR): New macros.
+
+ * src/main.c (main): Call setlocale, bindtextdomain and textdomain.
+
+ * POTFILES.in: New file.
+
+ * Makefile.in (allocate.o): Define target explicitly.
+
+1996-06-01 Jim Meyering <meyering@na-net.ornl.gov>
+
+ * Makefile.in (CFLAGS): Set to @CFLAGS@.
+ (LDFLAGS): Set to @LDFLAGS@.
+ (configure): Run autoconf only if preceding `cd' succeeds.
+ (src/bison.s1): Redirect output to temporary file then move the
+ temporary to the target, rather than redirecting directly to
+ src/bison.s1.
+ (clean): Remove config.status and config.log.
+ (distclean): Don't remove config.status here.
+
+1996-05-12 Jim Meyering <meyering@na-net.ornl.gov>
+
+ * src/bison.simple (__yy_memcpy) [__cplusplus]: Reorder declarations
+ of variables f and t.
+
+1996-05-11 Richard Stallman <rms@delasyd.gnu.ai.mit.edu>
+
+ * Version 1.25 released.
+
+ * Makefile.in (dist): Don't use $(srcdir).
+
+ * src/bison.simple (__yy_memcpy): Really reorder the args, as was
+ supposedly done on Feb 14 1995.
+ (yyparse): Calls changed accordingly.
+
+1996-01-24 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/output.c (output_rule_data): Test YYERROR_VERBOSE in the
+ conditional around the definition of ttyname.
+
+1995-12-28 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Fix line numbers in #line commands.
+
+1995-12-24 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (YYPARSE_PARAM_DECL): In C++, make it always
+ null.
+ (YYPARSE_PARAM_ARG): New macro.
+ (yyparse): Use YYPARSE_PARAM_ARG.
+
+1995-10-15 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/version.c: Version now 1.25.
+
+ * src/main.c (warn): Set `failure'.
+
+1995-08-01 Wilfred J. Hansen <wjh+@cmu.edu>
+
+ * src/bison.cld, src/getargs.c, src/vmsgetargs.c: Added -n, -k,
+ and -raw switches.
+ (noparserflag, toknumflag, rawtoknumflag): New variables.
+
+ * src/conflicts.c (resolve_sr_conflict): Remove use of alloca.
+
+ * src/files.c (openfiles, open_extra_files, done): Add faction flag
+ and actfile file. Handle noparserflag. Both for -n switch.
+
+ * src/lex.c: Include getopt.h. Add some extern decls.
+ (safegetc): New function to deal with EOF gracefully.
+ (literalchar); new function to deal with reading \ escapes.
+ (lex): Use literalchar.
+ (lex): Implemented "..." tokens.
+ (literalchar, lex, parse_percent_token): Made tokenbuffer
+ always contain the token. This includes growing the token
+ buffer while reading an integer.
+ (parse_percent_token): Replaced if-else statement with percent_table.
+ (parse_percent_token): Added % declarations as another
+ way to specify the flags -n, -l, and -r. Also added hooks for
+ -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
+ major changes to src/files.c.
+ (lex) Retain in the incoming stream a character following
+ an incorrect '/'.
+ (skip_white_space, lex): Revised most error messages
+ and changed fatal to warn to avoid aborting.
+ (percent_table): Added %thong declarations.
+
+ * src/lex.h: Added THONG and NOOP for alias processing.
+ Added SETOPT for the new code that allows setting options with %flags.
+
+ * src/main.c (main): If reader sees an error, don't process the
+ grammar.
+ (fatals): Updated to not use VARARGS1.
+ (printable_version, int_to_string, warn, warni, warns, warnss)
+ (warnsss): New error reporting functions. Avoid abort for error.
+
+ * src/output.c (output_headers, output_trailers, output, output_gram)
+ (output_rule_data): Implement noparserflag variable.
+ Implement toknumflag variable.
+ (output): Call reader_output_yylsp to output LTYPESTR.
+
+ * src/reader.c (reader_output_yylsp): New function.
+ (readgram): Use `#if 0' around code that accepted %command inside
+ grammar rules: The documentation doesn't allow it, and it will
+ fail since the %command processors scan for the next %.
+ (parse_token_decl): Extended the %token declaration to allow a
+ multi-character symbol as an alias.
+ (parse_thong_decl): New function.
+ (read_declarations): Added %thong declarations.
+ (read_declarations): Handle NOOP to deal with allowing %
+ declarations as another means to specify the flags.
+ (readgram): Allow %prec prior to semantics embedded in a rule.
+ (skip_to_char, read_declarations, copy_definition)
+ (parse_token_decl, parse_start_decl, parse_type_decl)
+ (parse_assoc_decl, parse_union_decl, parse_expect_decl)
+ (get_type_name, copy_guard, copy_action, readgram)
+ (get_type, packsymbols): Revised most error messages. Changed
+ `fatal' to `warnxxx' to avoid aborting for error. Revised and use
+ multiple warnxxx functions to avoid using VARARGS1.
+ (read_declarations): Improve the error message for an invalid
+ character. Do not abort.
+ (read_declarations, copy_guard, copy_action): Use
+ printable_version to avoid unprintable characters in printed
+ output.
+ (parse_expect_decl): Error if argument to %expect exceeds 10
+ digits.
+ (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
+ Allow the type of a non-terminal can be given more than once, as
+ long as all specifications give the same type.
+
+ * src/reduce.c (reduce_grammar): Revise an error message.
+ (print_notices): Remove final `.' from error message.
+
+ * src/symtab.h (SALIAS): New #define for adding aliases to %token.
+ (struct bucket): Added `alias' field.
+
+1995-05-03 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Change distribution terms.
+
+ * src/version.c: Version now 1.23. No, 1.24.
+
+1995-02-23 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/files.c: Test __VMS_POSIX as well as VMS.
+
+1995-02-14 Jim Meyering <meyering@comco.com>
+
+ * src/bison.simple (__yy_memcpy): Renamed from __yy_bcopy to avoid
+ confusion. Reverse FROM and TO arguments to be consistent with
+ those of memcpy.
+
+1994-11-10 David J. MacKenzie <djm@duality.gnu.ai.mit.edu>
+
+ * Makefile.in (DISTFILES): Include install-sh, not install.sh.
+ Include NEWS.
+
+ * configure.in: Update to Autoconf v2 macro names.
+
+1994-10-04 David J. MacKenzie <djm@duality.gnu.ai.mit.edu>
+
+ * Makefile.in (prefix, exec_prefix): Let configure set them.
+
+1994-09-28 David J. MacKenzie <djm@duality.gnu.ai.mit.edu>
+
+ * Makefile.in: Set datadir to $(prefix)/share.
+
+1994-07-12 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/reader.c (reader): Rename undefined-token token to
+ `$undefined.'.
+
+1994-05-05 David J. MacKenzie <djm@nutrimat.gnu.ai.mit.edu>
+
+ * Makefile.in (DISTFILES): Add install.sh.
+ (install): Remove chmod commands.
+
+1994-03-26 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Fix #line commands.
+
+1994-03-24 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/conflicts.c (print_reductions): Increment both fp1 and fp2
+ while printing reductions in multi-rule case.
+
+1994-01-02 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (LDFLAGS): Make it empty by default.
+ (bison): Use CFLAGS.
+
+1993-11-21 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (YYLEX): Take notice of YYLEX_PARAM.
+
+1993-10-18 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (YYPARSE_PARAM_DECL): Always define this.
+
+1993-10-14 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (yyparse): Support YYPARSE_PARAM.
+
+1993-09-13 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * Makefile.in (check): New target.
+
+1993-09-10 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/conflicts.c (alloca): #undef before defining.
+
+ * src/system.h (bcopy): Don't define if already defined.
+
+1993-09-06 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * Version 1.22 released.
+
+ * mkinstalldirs: New file.
+
+ * Makefile.in (dist): Use .gz for extension, not .z.
+ (DISTFILES): New variable.
+ (dist): Use it instead of explicit file list.
+ Try to link each file separately, then copy file if ln fails.
+ (installdirs): Use mkinstalldirs script.
+
+1993-07-29 David J. MacKenzie <djm@wookumz.gnu.ai.mit.edu>
+
+ * Makefile.in (config.status): Run config.status --recheck, not
+ configure, to get the right args passed.
+
+1993-07-24 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (yyparse): Init yychar1 to avoid warning.
+
+1993-07-04 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (yyparse): Don't set yyval when yylen is 0.
+
+1993-06-26 David J. MacKenzie <djm@wookumz.gnu.ai.mit.edu>
+
+ * src/getargs.c (getargs): Exit after printing the version number.
+ Add --help and -h options.
+ (usage): New function.
+
+1993-06-25 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/getargs.c (longopts): Allow `output' as an alternative.
+
+1993-06-16 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (yyparse): Conditionalize the entire call to
+ yyoverflow, not just two arguments in it.
+
+1993-06-03 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple [__hpux] (alloca): Don't specify arg types.
+
+1993-05-07 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * Makefile.in (install): Depend on `uninstall' and `installdirs'.
+ (installdirs): New target.
+
+1993-04-28 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * src/reader.c: Remove declaration of atoi.
+
+1993-04-23 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * src/new.h [!__STDC__] (FREE): Check x != 0.
+ Make expr to call `free' evaluate to 0.
+
+1993-04-20 David J. MacKenzie <djm@kropotkin.gnu.ai.mit.edu>
+
+ * src/files.c [MSDOS]: Use xmalloc, not malloc.
+ * src/allocate.c (xmalloc): Renamed from mallocate. Remove old
+ wrapper.
+ * src/conflicts.c, src/symtab.c, src/files.c, src/LR0.c,
+ src/new.h: Change callers.
+ * src/allocate.c (xrealloc): New function.
+ * src/new.h: Declare it.
+ * src/lex.c, src/reader.c: Use it.
+
+1993-04-18 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * Version 1.21 released.
+
+ * src/reader.c : Don't declare `realloc'.
+
+ * Makefile.in (bison.s1): use `rm -f' since it's quieter.
+ (dist): make gzipped tar file.
+
+1993-04-16 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * Makefile.in (Makefile, config.status, configure): New targets.
+
+1993-04-15 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/main.c: Don't declare `abort'.
+
+ * src/files.c: Don't declare `exit'.
+
+1993-04-15 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * configure.in: Add AC_CONST.
+
+1993-04-14 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (all): Depend on bison.s1.
+
+1993-04-13 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Version 1.20 released.
+
+1993-03-24 Richard Stallman <rms@wookumz.gnu.ai.mit.edu>
+
+ * src/output.c (output_headers): Rename yynerrs if -p.
+
+1993-03-18 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * src/system.h: Don't try to include stdlib.h unless HAVE_STDLIB_H
+ is defined.
+
+ * configure.in: Check for stdlib.h.
+
+1993-03-17 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple [__hpux, not __GNUC__]: Declare alloca.
+ (yyparse): When printing the expected token types for an error,
+ Avoid negative indexes in yycheck and yytname.
+
+1993-03-13 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (files.o, .c.o): Put CPPFLAGS and CFLAGS last.
+
+1993-03-01 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Test __sgi like __sparc.
+
+1993-02-17 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/conflicts.c (resolve_sr_conflict): Add extra parens in
+ alloca call.
+
+ * src/bison.simple [__GNUC__] (yyparse): Declare with prototype.
+
+1993-01-15 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/conflicts.c (print_reduction): Near end, increment fp2 when
+ mask recycles.
+
+1993-01-13 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (bison.s1): New target. Modifies bison.simple.
+ (install): Install bison.s1, without changing it.
+ (clean): Delete bison.s1.
+
+1993-01-04 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/reader.c (reader): Put Bison version in comment in output
+ file.
+
+1992-12-22 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/files.c (openfiles): Use .output, not .out, for outfile,
+ regardless of spec_name_prefix.
+
+1992-12-15 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/output.c (output_gram): Include yyrhs in the same #if as
+ yyprhs.
+
+1992-12-15 Noah Friedman <friedman@nutrimat.gnu.ai.mit.edu>
+
+ * src/output.c (output): output directives checking for
+ __cplusplus as well as __STDC__ to determine when to define
+ "const" as an empty token. (Patch from Wolfgang Glunz
+ <wogl@sun11a.zfe.siemens.de>)
+
+1992-12-08 David J. MacKenzie <djm@kropotkin.gnu.ai.mit.edu>
+
+ * src/system.h, src/conflicts.c: Replace USG with HAVE_STRING_H
+ and HAVE_MEMORY_H.
+
+1992-11-21 David J. MacKenzie <djm@goldman.gnu.ai.mit.edu>
+
+ * Makefile.in: Set and use $(MAKEINFO).
+
+1992-11-20 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/files.c (done) [MSDOS]: Delete the tmpdefsfile with the
+ rest.
+
+1992-10-08 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (dist): Put configure.bat in the distribution.
+
+1992-10-01 David J. MacKenzie <djm@goldman.gnu.ai.mit.edu>
+
+ * Makefile.in (install): cd to $(srcdir) before installing info
+ files.
+
+1992-09-30 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (files.o): Supply $(DEFS), and $(CPPFLAGS).
+
+1992-09-25 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Version 1.19 released.
+
+ * src/reader.c (parse_union_decl): Fix ending of C++ comment;
+ don't lose the char after the newline.
+
+ * configure.bat: New file.
+
+1992-09-24 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/conflicts.c: Check for using alloca.h as getopt.c does.
+
+1992-09-06 Karl Berry <karl@hayley>
+
+ * src/files.c (openfiles): open `fdefines' after we have assigned
+ a name to `tmpdefsfile', and only if `definesflag' is set.
+ (done): only create the real .tab.h file if `definesflag' is set.
+ * src/reader.c (packsymbols): don't close `fdefines' here.
+
+1992-09-05 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/files.c (openfiles): Open fdefines as temp file, like
+ ftable.
+ (done): Copy temp defines file to real one, like main output file.
+
+1992-08-21 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (dist): Don't release mergedir.awk
+ (install): Use sed, not awk. Don't depend on mergedir.awk.
+ * mergedir.awk: File effectively deleted.
+
+1992-07-29 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Test __sparc along with __sparc__.
+
+1992-07-11 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/lex.c (skip_white_space): Count \n just once at end of c++
+ comment.
+
+1992-06-26 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Comment fix; #line command updated.
+
+1992-06-24 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (install): Specify full new file name for the
+ executable.
+
+1992-06-22 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (dist): Include bison.rnh in distribution.
+
+Sun Jun 21 22:42:13 1992 Eric Youngdale <youngdale@v6550c.nrl.navy.mil>
+
+ Clean up rough edges in VMS port of bison, add support for
+ remaining command line options.
+
+ * src/bison.cld: Add /version, /yacc, /file_prefix, and
+ /name_prefix switches.
+
+ * src/build.com: General cleanup: add logic to automatically sense
+ which C compiler is present; add code to cwd to the directory that
+ contains bison sources; do not define XPFILE, XPFILE1
+ (correct defaults are applied in src/file.c).
+
+ * src/files.c: Append _tab, not .tab when using /file_prefix under
+ VMS.
+
+ * src/system.h: Include string.h instead of strings.h (a la USG).
+
+ * src/vmsgetargs.c: Add support for all switches added to
+ src/bison.cld.
+
+1992-06-21 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (install): Always specify new file name for install.
+ Redirect awk output to temp file and install that.
+
+1992-05-27 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (yyparse): Make yybackup and yyerrlab1 always
+ be used.
+
+1992-05-22 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (dist): Depend on bison.info
+ (bison.info): Delete spurious <.
+
+1992-05-17 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (.c.o): New rule. Use $(DEFS) directly.
+ (CFLAGS): Use just -g by default.
+ (CDEBUG): Variable deleted.
+
+1992-05-07 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/reader.c (copy_guard): Fix typo skipping comment.
+
+1992-05-04 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Version 1.18.
+
+ * src/getargs.c (getargs): Change '0' to 0 in case for long
+ options.
+
+1992-04-19 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/reader.c (packsymbols): Handle -p when declaring yylval.
+
+1992-04-18 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/output.c (output_gram): Output #endif properly at end of
+ decl.
+
+1992-03-30 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Version 1.17.
+
+ * Makefile.in (clean): Don't delete configuration files or TAGS.
+ (distclean): New target; do delete those.
+
+1992-03-28 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/output.c (output_gram): Conditionalize yyprhs on YYDEBUG.
+
+ * src/LR0.c (augment_automaton): If copying sp->shifts to insert
+ new shift, handle case of inserting at end.
+
+1992-03-21 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/lex.c (skip_white_space): Handle C++ comments.
+ * src/reader.c (copy_definition, parse_union_decl, copy_guard):
+ (copy_action): Likewise.
+
+1992-03-08 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (YYPOPSTACK): Fix typo.
+
+1992-02-29 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (install): Install bison.info* files one by one.
+
+1992-02-28 David J. MacKenzie <djm@wookumz.gnu.ai.mit.edu>
+
+ * src/bison.1: Document long options as starting with `--', not
+ `+'.
+
+1992-02-01 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/getargs.c (getargs): Accept value 0 from getopt_long.
+
+1992-01-30 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in (mostlyclean): Renamed from `clean'.
+ (clean): Renamed from 'distclean'. Dep on mostlyclean, not
+ realclean.
+ (realclean): Dep on clean.
+
+1992-01-27 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Use malloc, not xmalloc, and handle failure
+ explicitly.
+
+1992-01-26 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/conflicts.c (total_conflicts): Delete unused arg to fprintf.
+
+1992-01-21 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Version 1.16.
+
+1992-01-06 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile (distclean): Depend on clean, not realclean. Don't rm
+ TAGS.
+ (realclean): rm TAGS here.
+
+ * src/symtab.c (free_symtab): Don't free the type names.
+
+1991-12-29 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/machine.h: MSDOS has 32-bit ints if __GO32__.
+
+1991-12-25 David J. MacKenzie <djm@wookumz.gnu.ai.mit.edu>
+
+ * src/bison.simple [_AIX]: Indent `#pragma alloca', so old C
+ compilers don't choke on it.
+
+1991-12-23 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/getopt.c, src/getopt1.c, src/getopt.h: Link them to standard
+ source location.
+ * src/alloca.c: Likewise.
+ * Makefile.in (dist): Copy those files from current dir.
+
+ * src/getargs.c: Update usage message.
+
+ * src/LR0.c (augment_automaton): Put new shift in proper order.
+
+1991-12-20 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/conflicts.c: Use memcpy if ANSI C library.
+
+ * src/closure.c (set_fderives): Delete redundant assignment to
+ vrow.
+
+ * src/closure.c (print_firsts): Fix bounds and offset checking
+ tags.
+
+ * src/closure.c (tags): Declare just once at start of file.
+
+ * src/LR0.c (allocate_itemsets): Eliminate unused var max.
+ (augment_automaton): Test sp is non-null.
+
+ * src/lalr.c (initialize_LA): Make the vectors at least 1 element
+ long.
+
+ * src/reader.c (readgram): Remove separate YYSTYPE default for
+ MSDOS.
+
+1991-12-18 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/print.c (print_grammar): Don't print disabled rules.
+
+1991-12-17 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/lex.c (lex): Parse hex escapes properly.
+ Handle \v when filling token_buffer.
+
+ * src/lex.c: Include new.h.
+ (token_buffer): Change to a pointer.
+ (init_lex): Allocate initial buffer.
+ (grow_token_buffer): New function.
+ (lex, parse_percent_token): Use that.
+
+ * src/reader.c (read_declarations): Call open_extra_files just
+ once.
+ (parse_token_decl): Don't free previous typename value. Don't
+ increment nvars if symbol is already a nonterminal.
+ (parse_union_decl): Catch unmatched close-brace.
+ (parse_expect_decl): Null-terminate buffer.
+ (copy_guard): Set brace_flag for {, not for }.
+
+ * src/reader.c: Fix %% in calls to fatal.
+
+ * src/reader.c (token_buffer): Just one extern decl, at top level.
+ Declare as pointer.
+
+ * src/symtab.c (free_symtab): Free type_name fields. Free symtab
+ itself.
+
+1991-11-25 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Handle alloca for AIX.
+
+ * Makefile.in (mandir): Compute default using manext.
+
+1991-11-02 David J. MacKenzie <djm@wookumz.gnu.ai.mit.edu>
+
+ * Update all files to GPL version 2.
+
+1991-09-06 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple (__yy_bcopy): Use builtin if GCC version 2.
+
+1991-08-26 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/reader.c (parse_assoc_decl): Error if same symbol gets two
+ precs.
+
+1991-08-26 David J. MacKenzie <djm@pogo.gnu.ai.mit.edu>
+
+ * Makefile.in, configure: Only put $< in Makefile if using VPATH,
+ because older makes don't understand it.
+
+1991-08-23 David J. MacKenzie <djm@apple-gunkies>
+
+ * src/conflicts.c [_AIX]: #pragma alloca.
+ * src/reduce.c: Don't define TRUE and FALSE if already defined.
+
+1991-08-12 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile.in: Add deps on system.h.
+ (install): Add some deps.
+
+1991-08-02 David J. MacKenzie <djm@apple-gunkies>
+
+ * Makefile.in (dist): Include texinfo.tex.
+
+ * configure: Create config.status. Remove it and Makefile if
+ interrupted while creating them.
+
+1991-08-01 David J. MacKenzie <djm@apple-gunkies>
+
+ * configure: Check for +srcdir etc. arg and look for
+ Makefile.in in that directory. Set VPATH if srcdir is not `.'.
+ * Makefile.in (prefix): Renamed from DESTDIR.
+
+1991-07-31 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/print.c (print_grammar): Make output prettier. Break lines.
+
+1991-07-30 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/print.c (print_grammar): New function.
+ (verbose): Call it instead of printing token names here.
+
+1991-07-22 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/vmsgetargs.c (spec_name_prefix, spec_file_prefix): Define
+ variables.
+
+1991-07-10 David J. MacKenzie <djm@wookumz.gnu.ai.mit.edu>
+
+ * configure, Makefile.in: $(INSTALLPROG) -> $(INSTALL),
+ $(INSTALLTEXT) -> $(INSTALLDATA).
+
+1991-07-09 David J. MacKenzie <djm@wookumz.gnu.ai.mit.edu>
+
+ * src/bison.simple: Don't include malloc.h if __TURBOC__.
+
+1991-07-06 David J. MacKenzie <djm@geech.gnu.ai.mit.edu>
+
+ * Replace Makefile with configure and Makefile.in. Update README
+ with current compilation instructions.
+
+1991-07-01 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/reader.c (reader): Make the output define YYBISON.
+
+1991-06-20 David J. MacKenzie <djm@geech.gnu.ai.mit.edu>
+
+ * Makefile (MANDIR, MANEXT): Install man page in
+ /usr/local/man/man1/bison.1 by default, instead of
+ /usr/man/manl/bison.l, for consistency with other GNU programs.
+ * Makefile: Rename BINDIR et al. to lowercase to conform to
+ GNU coding standards.
+ (install): Make man page non-executable.
+
+1991-05-31 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile (bison.info): New target.
+ (realclean): New target.
+
+1991-05-02 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/bison.simple: Use YYPRINT to print a token, if it's defined.
+
+1991-04-29 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/lalr.c (transpose): Rename R to R_arg.
+ (initialize_LA): Avoid shadowing variable j.
+
+ * src/reader.c (packsymbols): Avoid shadowing variable i.
+
+ * src/files.c: Declare exit and perror.
+
+ * src/machine.h: Define MAXSHORT and MINSHORT for the eta-10.
+
+1991-04-02 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * src/allocate.c (mallocate): Always allocate at least one byte.
+
+1991-03-19 Richard Stallman <rms@mole.gnu.ai.mit.edu>
+
+ * Makefile (dist): Put alloca.c into distribution.
+
+1991-03-06 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/print.c (print_actions): Nicer output for final states.
+
+1991-02-21 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/output.c (output_rule_data): Break lines in yytline based on
+ hpos.
+
+1991-02-07 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/bison.simple (yyparse): Move decl of yylsa before use.
+
+1991-01-15 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * Version 1.14.
+
+ * src/output.c (output_rule_data): Handle NULL in tags[i].
+
+1991-01-11 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/bison.simple: On MSDOS, include malloc.h.
+
+1990-12-29 David J. MacKenzie <djm@wookumz.ai.mit.edu>
+
+ * src/files.c: Use `mallocate' instead of `xmalloc' so no extra
+ decl is needed.
+
+1990-12-19 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/reader.c (readgram): Alternate YYSTYPE defn for MSDOS.
+ * src/files.c [MSDOS]: Declare xmalloc.
+
+1990-12-13 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/output.c (output_rule_data): Put all symbols in yytname.
+
+ * src/bison.simple (yyparse): Delete extra fprintf arg
+ when printing a result of reduction.
+
+1990-12-10 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/reader.c (packsymbols): Don't declare yylval if pure_parser.
+
+1990-10-30 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * Version 1.12.
+
+ * src/LR0.c (augment_automaton): Fix bugs adding sp2 to chain of
+ shifts.
+
+1990-10-23 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/bison.simple: Don't define alloca if already defined.
+
+1990-10-21 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/getopt.c: On VMS, use string.h.
+
+ * src/main.c (main): Return type int.
+
+1990-09-10 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/output.c (output_headers): Output macro defs for -p.
+
+ * src/reader.c (readgram): Handle consecutive actions.
+
+ * src/getargs.c (getargs): Rename -a to -p.
+ * src/files.c (openfiles): Change names used for -b.
+
+1990-08-27 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/reduce.c (reduce_grammar_tables): Don't map rlhs of disabled
+ rule.
+
+1990-08-26 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/closure.c (print_firsts, print_fderives): Use BITISSET to
+ test bits.
+
+1990-08-23 Richard Stallman <rms@mole.ai.mit.edu>
+
+ * src/closure.c (print_firsts): vrowsize => varsetsize.
+ (print_fderives): rrowsize => rulesetsize.
+
+1990-08-10 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple (alloca): Don't define if already defined.
+ (__yy_bcopy): Alternate definition for C++.
+
+1990-07-11 David J. MacKenzie <djm@albert.ai.mit.edu>
+
+ * src/getargs.c (getargs): Mention +yacc in usage message.
+
+1990-07-10 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (parse_token_decl, copy_action): Set
+ value_components_used if appropriate.
+ (readgram): Inhibit output of YYSTYPE definition in that case.
+
+1990-06-30 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/output.c (output_parser): Define YYPURE if pure, and not
+ otherwise. Don't define YYIMPURE.
+ * src/bison.simple: Adjust conditionals accordingly.
+ * src/bison.simple (YYLEX): If locations not in use, don't pass
+ &yylloc.
+
+1990-06-28 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/getargs.c (longopts): Add `yacc'.
+
+1990-06-28 David J. MacKenzie <djm@apple-gunkies>
+
+ * src/getargs.c (getargs): Add long options.
+ * Makefile: Link with getopt1.o and add getopt1.c and getopt.h to
+ dist.
+
+ * Move version number and description back into version.c from
+ Makefile and getargs.c.
+ * Makefile (dist): Extract version number from version.c.
+
+1990-06-26 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/output.c (output): Always call output_gram.
+ * src/bison.simple (yyparse): Print rhs and lhs symbols of
+ reduction rule.
+
+1990-06-21 David J. MacKenzie <djm@albert.ai.mit.edu>
+
+ * src/main.c: New global var `program_name' to hold argv[0] for
+ error messages.
+ * src/allocate.c, src/files.c, src/getargs.c, src/reader.c: Use
+ `program_name' in messages instead of hardcoded "bison".
+
+1990-06-20 David J. MacKenzie <djm@albert.ai.mit.edu>
+
+ * Makefile: Specify Bison version here. Add rule to pass it to
+ version.c. Encode it in distribution directory and tar file names.
+ * src/version.c: Use version number from Makefile.
+ * src/getargs.c (getargs): Print additional text that used to be
+ part of version_string in version.c. Use -V instead of -version
+ to print Bison version info. Print a usage message and exit if
+ given an invalid option.
+
+1990-06-19 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple: Fix a #line.
+
+ * Makefile (INSTALL): New parameter.
+ (install): Use that.
+ (CFLAGS): Move definition to top.
+
+1990-06-17 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (parse_type_decl): Ignore semicolon.
+ Remove excess % from error messages.
+
+1990-06-16 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Version 1.11.
+
+ * Makefile (install): Ensure installed files readable.
+
+Tue Jun 12 12:50:56 EDT 1990 Jay Fenlason <hack@ai.mit.edu>
+
+ * src/getargs.c: Declare spec_file_prefix
+
+ * src/lex.c (lex): \a is '\007' instead of '007'
+
+ * src/reader.c: include machine.h
+
+ * src/files.h: Declare extern spec_name_prefix.
+
+ Trivial patch from Thorsten Ohl <td12@ddagsi3.bitnet>
+
+1990-05-31 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Version 1.10.
+
+ * src/bison.simple (YYBACKUP, YYRECOVERING): New macros.
+ (YYINITDEPTH): This is what used to be YYMAXDEPTH.
+ (YYMAXDEPTH): This is what used to be YYMAXLIMIT.
+ If the value is 0, use the default instead.
+ (yyparse): Return 2 on stack overflow.
+
+1990-05-30 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple (YYERROR): Jump to new label; don't print error
+ message.
+ (yyparse): Define label yyerrlab1.
+
+1990-05-16 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/files.c (openfiles): Support -b.
+ * src/getargs.c (getargs): Likewise.
+
+ * src/reader.c (readgram): Error if too many symbols.
+
+ * src/lex.c (lex): Handle \a. Make error msgs more reliable.
+ * src/reader.c (read_declarations): Make error msgs more reliable.
+
+1990-05-13 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Version 1.09.
+
+ * src/reduce.c (reduce_grammar_tables): Fix backward test.
+
+1990-05-12 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Makefile (bison-dist.*): Rename targets and files to bison.*.
+ (bison.tar): Make tar file to unpack into subdirectory named `bison'.
+
+1990-04-30 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reduce.c (reduce_grammar_tables): Set rlhs to -1 for useless
+ rules.
+ * src/nullable.c (set_nullable): Ignore those rules.
+ * src/derives.c (set_derives): Likewise.
+
+1990-04-23 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple (yyparse): Mention rule number as well as line
+ number.
+
+1990-03-29 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple (__yy_bcopy): New function.
+ (yyparse): Use that, not bcopy.
+
+1990-03-28 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/print.c (print_actions): Don't alter i and j spuriously when
+ errp==0.
+
+1990-03-12 Jim Kingdon <kingdon@pogo.ai.mit.edu>
+
+ * src/bison.simple [__GNUC__]: Use builtin_alloca.
+
+1990-03-07 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Makefile (install): Use mergedir.awk to process bison.simple
+ for installation.
+
+ * src/bison.simple (yyparse): New feature to include possible valid
+ tokens in parse error message.
+
+1990-03-03 Richard Stallman <rms@geech>
+
+ * Version 1.08.
+
+1990-02-26 Jim Kingdon <kingdon@pogo.ai.mit.edu>
+
+ * src/print.c (print_actions)
+ * src/conflicts.c (print_reductions): Change "shift %d" to
+ "shift, and go to state %d" and "reduce %d" to "reduce using rule %d"
+ and "goto %d" to "go to state %d".
+ * src/print.c (print_core): Change "(%d)" to "(rule %d)".
+
+1990-02-20 Jay Fenlason <hack@wookumz.ai.mit.edu>
+
+ * src/bison.simple: Comment out unused yyresume: label.
+
+1990-02-09 Jay Fenlason <hack@wookumz.ai.mit.edu>
+
+ * src/bison.simple : surround all declarations and (remaining)
+ uses of yyls* and yylloc with #ifdef YYLSP_NEEDED This will
+ significantly cut down on stack usage, and gets rid of
+ unused-variable msgs from GCC.
+
+1990-01-31 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/files.c (done) [VMS]: Don't delete files that weren't used.
+ [VMS]: Let user override XPFILE and XPFILE1.
+
+1990-01-03 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Version 1.07.
+
+1989-12-16 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/gram.c (dummy): New function.
+
+ * src/reader.c (readgram): Detect error if two consec actions.
+
+1989-11-15 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reduce.c (reduce_grammar_tables): Update rline like other
+ tables.
+
+ * Makefile (install): Install the man page.
+
+1989-11-11 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/output.c (output_rule_data): Write #if YYDEBUG around yyrline.
+
+1989-10-18 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Version 1.06.
+
+ * src/vmsgetargs.c (getargs): Downcase specified output file name.
+
+1989-10-13 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (readgram): Warn if there is no default to use for
+ $$ and one is needed.
+
+1989-09-29 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Version 1.05.
+
+ * src/vmsgetargs.h (getargs): Process outfile option.
+
+1989-09-08 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Version 1.04.
+
+ * src/reader.c (parse_union_decl): Count newlines even in
+ comments.
+
+1989-09-06 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/files.c (openfiles): short_base_length was always ==
+ base_length.
+
+1989-08-24 Richard Stallman <rms@apple-gunkies.ai.mit.edu>
+
+ * Version 1.03.
+
+ * src/files.c (openfiles): Write output into same dir as input, by
+ default.
+
+1989-08-23 Jay Fenlason <hack@gnu>
+
+ * Makefile: Include system.h in bison-dist.tar
+
+1989-08-15 Richard Stallman <rms@hobbes.ai.mit.edu>
+
+ * version 1.03.
+
+ * src/reader.c (reader): Output LTYPESTR to fdefines
+ only after reading the grammar.
+
+1989-08-06 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (read_declarations): Put space before comment
+ to avoid bug in Green Hills C compiler.
+
+1989-06-19 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/allocate.c (xmalloc): New function.
+
+1989-06-16 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/build.com: Compile and link reduce.c.
+
+1989-06-09 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reduce.c (reduce_grammar_tables): Adjust start_symbol when
+ #s change.
+
+1989-05-27 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (copy_definition, copy_guard): Don't object to
+ \-newline inside strings.
+
+1989-05-22 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/files.c (openfiles): Alternate file names for MSDOS.
+ (open_extra_files): Likewise.
+ (done): On MSDOS, unlink temp files here, not in openfiles.
+
+ * src/machine.h (BITS_PER_WORD): 16 on MSDOS.
+ (MAXTABLE): Now defined in this file.
+
+ * src/system.h: New file includes system-dependent headers.
+ All relevant .c files include it.
+
+1989-04-27 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/version.c: Version 1.01.
+
+1989-04-18 Randall Smith <randy@apple-gunkies.ai.mit.edu>
+
+ * src/conflicts.c (total_conflicts): Fixed typo in yacc style
+ output; mention conflicts if > 0.
+
+1989-04-15 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (packsymbols): Start new symbols after 256.
+
+1989-04-12 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (reader): Always assign code 256 to `error' token.
+ Always set `translations' to 1 so this code gets handled.
+ * src/bison.simple (YYERRCODE): Define it.
+
+1989-04-11 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/conflicts.c: If GNU C, use builtin alloca.
+
+ * Makefile (install): Delete parser files before copying them.
+
+1989-03-30 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/getargs.c (getargs): Turn off checking of name Bison was
+ invoked by.
+
+ * Makefile (dist): Include ChangeLog in distrib.
+
+1989-03-23 Jay Fenlason <hack@apple-gunkies.ai.mit.edu>
+
+ * src/LR0.c src/closure.c src/conflicts.c src/derives.c
+ src/files.c src/getargs.c src/lalr.c src/lex.c src/main.c
+ src/nullable.c src/output.c src/print.c src/reader.c src/reduce.c
+ src/symtab.c src/warshall.c: A first pass at getting gcc -Wall to
+ shut up. Mostly declared functions as void, etc.
+
+ * src/reduce.c moved 'extern int fixed_outfiles;' into print_notices
+ where it belongs.
+
+1989-03-01 Randall Smith <randy@apple-gunkies.ai.mit.edu>
+
+ * src/types.h, src/symtab.h, src/state.h, src/new.h,
+ src/machine.h, src/lex.h, src/gram.h, src/files.h, src/closure.c,
+ src/vmsgetargs.c, src/warshall.c, src/symtab.c, src/reduce.c,
+ src/reader.c, src/print.c, src/output.c, src/nullable.c,
+ src/main.c, src/lex.c, src/lalr.c, src/gram.c, src/getargs.c,
+ src/files.c, src/derives.c, src/conflicts.c, src/allocate.c,
+ src/LR0.c, Makefile, src/bison.simple: Changed copyright notices
+ to be in accord with the new General Public License.
+ * COPYING: Made a link to the new copying file.
+
+1989-02-22 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/new.h (FREE): Alternate definition for __STDC__ avoids error
+ if `free' returns void.
+
+1989-02-21 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (read_declarations): Double a `%' in a format string.
+ (copy_definition, parse_start_decl, parse_token_decl): Likewise.
+ (parse_type_decl, parse_union_decl, copy_guard, readgram, get_type).
+ (copy_action): change a `fatal' to `fatals'.
+
+ * src/lalr.c (map_goto): Initial high-end of binary search was off
+ by 1.
+
+1989-02-18 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple [sparc]: Include alloca.h.
+
+1989-02-15 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (packsymbols): Write decl of yylval into .tab.h file.
+
+1989-01-28 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple: Avoid comments on `#line' lines.
+
+ * src/reader.c (LTYPESTR): Rearrange to avoid whitespace after
+ \-newline.
+
+1989-01-09 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/conflicts.c (total_conflicts): if -y, use output syntax
+ POSIX wants.
+ * src/reduce.c (print_notices): likewise.
+
+ * src/lex.c (lex): Handle \v, and \x hex escapes.
+
+ * src/reader.c (reader): Merge output_ltype into here. Don't
+ output YYLTYPE definition to .tab.h file unless the @ construct is
+ used.
+
+ * src/bison.simple: Define YYERROR, YYABORT, YYACCEPT here.
+ * src/reader.c (output_ltype): Don't output them here.
+
+ * src/bison.simple: YYDEBUG now should be 0 or 1.
+ * src/output.c (output): For YYDEBUG, output conditional to define it
+ only if not previously defined.
+
+1989-01-02 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple (yyparse) [YYPURE]: Add local yynerrs.
+ (yydebug): Declare global, but don't initialize, regardless of
+ YYPURE.
+ (yyparse): Don't declare yydebug here.
+
+1988-12-22 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reduce.c (print_notices): Typo in message.
+
+1988-12-11 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/output.c (pack_table): Free only nonzero the elts of froms &
+ tos.
+
+1988-12-08 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/gram.c (rprecsym): New vector indicates the %prec symbol for
+ a rule.
+ * src/reader.c (packgram): Allocate it and fill it in.
+ * src/reduce.c (inaccessable_symbols): Use it to set V1.
+ * src/reduce.c (print_results): Don't complain about useless token
+ if it's in V1.
+
+1988-12-05 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/machine.h (RESETBIT, BITISSET): New macros.
+ (SETBIT, WORDSIZE): Change to use BITS_PER_WORD.
+
+ * src/reduce.c: New file, by David Bakin. Reduces the grammar.
+ * Makefile: Compile it, link it, put it in dist.
+
+ * src/main.c (main): Call reduce_grammar (in reduce.c).
+
+1988-11-17 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/conflicts.c: Don't declare alloca if including alloca.h.
+
+ * src/bison.cld: Define qualifiers `nolines', `debug'.
+ * src/vmsgetargs.c (getargs): Handle them.
+
+ * src/output.c (output_program): Notice `nolinesflag'.
+
+ * src/output.c (output_parser): Simplify logic for -l and #line.
+ Avoid writing EOF char into output.
+
+1988-10-12 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Implement `-l' option.
+ * src/getopt.c: Set flag `nolinesflag'.
+ * src/reader.c (copy_definition, parse_union_decl, copy_guard,
+ copy_action) Obey that flag; don't generate #line.
+ * src/output.c (output_parser): Discard #line's when copying the
+ parser.
+
+1988-09-12 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (copy_guard): Fix brace-counting for
+ brace-surrounded guard.
+
+1988-09-08 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/bison.simple: Correct number in #line command.
+ (yyparse): Call YYABORT instead of YYERROR, due to last change in
+ output_ltype.
+
+1988-09-05 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * Makefile: New variable LIBS. Alternatives for USG.
+ * src/conflicts.c [USG]: Define bcopy.
+ * src/symtab.c [USG]: Include string.h instead of strings.h.
+
+ * src/conflicts.c [sparc]: Include alloca.h.
+
+1988-08-02 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (parse_token_decl): Ignore commas.
+
+1988-06-25 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/reader.c (output_ltype): Make YYERROR yacc-compatible (like
+ YYFAIL).
+
+1988-06-24 Richard Stallman <rms@sugar-bombs.ai.mit.edu>
+
+ * src/getargs.c (getargs): -t sets debugflag.
+ Eliminate upper case duplicate options.
+ * src/output.c (output): If debugflag, output `#define YYDEBUG'.
+
+1988-05-26 Richard Stallman <rms@frosted-flakes.ai.mit.edu>
+
+ * src/allocate.c (mallocate): New name for `allocate' (which loses
+ in VMS). Calls changed in LR0.c, conflicts.c, symtab.c, new.h.
+
+ * src/getargs.c (getargs): If argv[0] is "yacc", set fixed_outfiles.
+
+1988-05-17 Richard Stallman <rms@frosted-flakes.ai.mit.edu>
+
+ * src/conflicts.c: Declare alloca.
+ * src/reader.c: Declare realloc.
+ * src/warshall.c (TC): Fix one arithmetic op that was omitted last
+ time.
+
+1988-05-05 Richard Stallman <rms@frosted-flakes.ai.mit.edu>
+
+ * src/bison.simple: Conditionalize most refs to yylsp on
+ YYLSP_NEEDED.
+ * src/reader.c (copy_guard, copy_action): Notice if `@' is used.
+ (reader): If it was, output `#define YYLSP_NEEDED'.
+
+1988-04-18 Richard Stallman <rms@rice-krispies.ai.mit.edu>
+
+ * src/bison.simple: New variable yynerr counts calls to yyerror.
+
+ * src/lex.c (lex, case '='): Update lineno when skipping a newline.
+
+ * src/reader.c (parse_expect_decl): ungetc the char that ends the
+ number; don't read any further. This handles multi-line comments
+ right and avoids incorrect lineno.
+
+ * src/reader.c: Delete duplicate decl of symval.
+
+ * src/warshall.c (RTC, TC): Cast ptrs to char *, not unsigned, for
+ arith.
diff --git a/PACKAGING b/PACKAGING
new file mode 100644
index 0000000..dd285c9
--- /dev/null
+++ b/PACKAGING
@@ -0,0 +1,56 @@
+Packaging hints for binary package distributors
+===============================================
+
+Although the source of the bison package comes as a single package,
+in distributions of binary packages the installed files should
+be split into two packages:
+
+ bison-runtime
+ Contents: Runtime libraries and programs.
+ Audience: Anyone who wants to run internationalized programs
+ that contain Bison-generated parsers.
+
+ bison
+ Contents: Tools and documentation for developers that use Bison.
+ Audience: Anyone who wants to develop programs that use parsers.
+ Dependencies: requires bison-runtime.
+
+The 'bison-runtime' binary package is much smaller than the 'bison'
+binary package. It should be included in any distribution that
+contains localized programs that use the diagnostics contained in
+Bison-generated parsers.
+
+If you want to install both packages at the same time, you simply do
+at the toplevel directory:
+
+ ./configure
+ make
+ make install
+
+After installation, the file
+
+ $prefix/share/locale/*/LC_MESSAGES/bison-runtime.mo
+
+belongs to the bison-runtime package; all other installed files belong
+to the bison package.
+
+-----
+
+Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+
+This file is part of Bison, the GNU Compiler Compiler.
+
+Bison is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+Bison is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with autoconf; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
diff --git a/README b/README
new file mode 100644
index 0000000..a053f4b
--- /dev/null
+++ b/README
@@ -0,0 +1,41 @@
+This directory contains the Bison parser generator.
+
+See the file INSTALL for generic compilation and installation instructions.
+See the file doc/FAQ for frequently asked questions.
+
+Bison requires GNU m4 1.4.3 or later. See:
+
+ftp://ftp.gnu.org/gnu/m4/m4-1.4.3.tar.gz
+
+Bison can work with pre-1.4.3 distributions of GNU m4 if they are
+sufficiently patched, but if you encounter a bug with an older
+distribution and report a bug we will probably suggest that you
+upgrade to 1.4.3 as the first step in trying to fix it.
+
+Please send bug reports to <bug-bison@gnu.org>. Please include the
+version number from `bison --version', and a complete, self-contained
+test case in each bug report.
+
+If you have questions about using Bison and the documentation does
+not answer them, please send mail to <help-bison@gnu.org>.
+
+-----
+
+Copyright (C) 1992, 1998, 1999, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+This file is part of Bison, the GNU Compiler Compiler.
+
+Bison is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+Bison is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with autoconf; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
diff --git a/THANKS b/THANKS
new file mode 100644
index 0000000..c00580e
--- /dev/null
+++ b/THANKS
@@ -0,0 +1,90 @@
+Bison was originally written by Robert Corbett. It would not be what
+it is today without the invaluable help of these people:
+
+Airy Andre Airy.Andre@edf.fr
+Akim Demaille akim@freefriends.org
+Albert Chin-A-Young china@thewrittenword.com
+Alexander Belopolsky alexb@rentec.com
+Alexandre Duret-Lutz adl@src.lip6.fr
+Andreas Schwab schwab@suse.de
+Andrew Suffield asuffield@users.sourceforge.net
+Anthony Heading ajrh@ajrh.net
+Arnold Robbins arnold@skeeve.com
+Art Haas ahaas@neosoft.com
+Baron Schwartz baron@sequent.org
+Benoit Perrot benoit.perrot@epita.fr
+Bert Deknuydt Bert.Deknuydt@esat.kuleuven.ac.be
+Bruce Lilly blilly@erols.com
+Bruno Haible bruno@clisp.org
+Charles-Henri de Boysson de-boy_c@epita.fr
+Cris Bailiff c.bailiff+bison@awayweb.com
+Cris van Pelt cris@amf03054.office.wxs.nl
+Daniel Hagerty hag@gnu.org
+David J. MacKenzie djm@gnu.org
+Derek M. Jones derek@knosof.co.uk
+Dick Streefland dick.streefland@altium.nl
+Enrico Scholz enrico.scholz@informatik.tu-chemnitz.de
+Evgeny Stambulchik fnevgeny@plasma-gate.weizmann.ac.il
+Fabrice Bauzac noon@cote-dazur.com
+Florian Krohm florian@edamail.fishkill.ibm.com
+Frank Heckenbach frank@g-n-u.de
+Guido Trentalancia trentalg@aston.ac.uk
+H. Merijn Brand h.m.brand@hccnet.nl
+Hans Aberg haberg@matematik.su.se
+Jan Nieuwenhuizen janneke@gnu.org
+Jesse Thilo jthilo@gnu.org
+Jim Kent jkent@arch.sel.sony.com
+Jim Meyering jim@meyering.net
+Joel E. Denny jdenny@ces.clemson.edu
+Juan Manuel Guerrero ST001906@HRZ1.HRZ.TU-Darmstadt.De
+Kees Zeelenberg kzlg@users.sourceforge.net
+Keith Browne kbrowne@legato.com
+Laurent Mascherpa laurent.mascherpa@epita.fr
+Magnus Fromreide magfr@lysator.liu.se
+Marc Autret autret_m@epita.fr
+Martin Mokrejs mmokrejs@natur.cuni.cz
+Martin Nylin martin.nylin@linuxmail.org
+Matt Kraai kraai@alumni.cmu.edu
+Matt Rosing rosing@peakfive.com
+Michael Hayes m.hayes@elec.canterbury.ac.nz
+Mickael Labau labau_m@epita.fr
+Mike Castle dalgoda@ix.netcom.com
+Neil Booth NeilB@earthling.net
+Nelson H. F. Beebe beebe@math.utah.edu
+Nicolas Burrus nicolas.burrus@epita.fr
+Nicolas Tisserand nicolas.tisserand@epita.fr
+Noah Friedman friedman@gnu.org
+Oleg Smolsky oleg.smolsky@pacific-simulators.co.nz
+Pascal Bart pascal.bart@epita.fr
+Paul Eggert eggert@cs.ucla.edu
+Paul Hilfinger Hilfinger@CS.Berkeley.EDU
+Per Allansson per@appgate.com
+Peter Fales psfales@lucent.com
+Peter Hamorsky hamo@upjs.sk
+Piotr Gackiewicz gacek@intertel.com.pl
+Quoc Peyrot chojin@lrde.epita.fr
+R Blake blakers@mac.com
+Raja R Harinath harinath@cs.umn.edu
+Richard Stallman rms@gnu.org
+Robert Anisko anisko_r@epita.fr
+Shura debil_urod@ngs.ru
+Steve Murphy murf@parsetree.com
+Tim Josling tej@melbpc.org.au
+Tim Van Holder tim.van.holder@pandora.be
+Tom Lane tgl@sss.pgh.pa.us
+Tom Tromey tromey@cygnus.com
+Tommy Nordgren tommy.nordgren@chello.se
+Troy A. Johnson troyj@ecn.purdue.edu
+Vin Shelton acs@alumni.princeton.edu
+Wayne Green wayne@infosavvy.com
+Wolfram Wagner ww@mpi-sb.mpg.de
+Wwp subscript@free.fr
+Zack Weinberg zack@codesourcery.com
+ twlevo@xs4all.nl
+
+Many people are not named here because we lost track of them. We
+thank them! Please, help us keeping this list up to date.
+
+Local Variables:
+mode: text
+End:
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..76ca736
--- /dev/null
+++ b/TODO
@@ -0,0 +1,328 @@
+-*- outline -*-
+
+* Header guards
+
+From Franc,ois: should we keep the directory part in the CPP guard?
+
+
+* Yacc.c: CPP Macros
+
+Do some people use YYPURE, YYLSP_NEEDED like we do in the test suite?
+They should not: it is not documented. But if they need to, let's
+find something clean (not like YYLSP_NEEDED...).
+
+
+* Documentation
+Before releasing, make sure the documentation ("Understanding your
+parser") refers to the current `output' format.
+
+* lalr1.cc
+** vector
+Move to using vector, drop stack.hh.
+
+** I18n
+Catch up with yacc.c.
+
+* Report
+
+** GLR
+How would Paul like to display the conflicted actions? In particular,
+what when two reductions are possible on a given look-ahead token, but one is
+part of $default. Should we make the two reductions explicit, or just
+keep $default? See the following point.
+
+** Disabled Reductions
+See `tests/conflicts.at (Defaulted Conflicted Reduction)', and decide
+what we want to do.
+
+** Documentation
+Extend with error productions. The hard part will probably be finding
+the right rule so that a single state does not exhibit too many yet
+undocumented ``features''. Maybe an empty action ought to be
+presented too. Shall we try to make a single grammar with all these
+features, or should we have several very small grammars?
+
+** --report=conflict-path
+Provide better assistance for understanding the conflicts by providing
+a sample text exhibiting the (LALR) ambiguity. See the paper from
+DeRemer and Penello: they already provide the algorithm.
+
+
+* Extensions
+
+** Labeling the symbols
+Have a look at the Lemon parser generator: instead of $1, $2 etc. they
+can name the values. This is much more pleasant. For instance:
+
+ exp (res): exp (a) '+' exp (b) { $res = $a + $b; };
+
+I love this. I have been bitten too often by the removal of the
+symbol, and forgetting to shift all the $n to $n-1. If you are
+unlucky, it compiles...
+
+But instead of using $a etc., we can use regular variables. And
+instead of using (), I propose to use `:' (again). Paul suggests
+supporting `->' in addition to `:' to separate LHS and RHS. In other
+words:
+
+ r:exp -> a:exp '+' b:exp { r = a + b; };
+
+That requires an significant improvement of the grammar parser. Using
+GLR would be nice. It also requires that Bison know the type of the
+symbols (which will be useful for %include anyway). So we have some
+time before...
+
+Note that there remains the problem of locations: `@r'?
+
+
+** $-1
+We should find a means to provide an access to values deep in the
+stack. For instance, instead of
+
+ baz: qux { $$ = $<foo>-1 + $<bar>0 + $1; }
+
+we should be able to have:
+
+ foo($foo) bar($bar) baz($bar): qux($qux) { $baz = $foo + $bar + $qux; }
+
+Or something like this.
+
+** %if and the like
+It should be possible to have %if/%else/%endif. The implementation is
+not clear: should it be lexical or syntactic. Vadim Maslow thinks it
+must be in the scanner: we must not parse what is in a switched off
+part of %if. Akim Demaille thinks it should be in the parser, so as
+to avoid falling into another CPP mistake.
+
+** -D, --define-muscle NAME=VALUE
+To define muscles via cli. Or maybe support directly NAME=VALUE?
+
+** XML Output
+There are couple of available extensions of Bison targeting some XML
+output. Some day we should consider including them. One issue is
+that they seem to be quite orthogonal to the parsing technique, and
+seem to depend mostly on the possibility to have some code triggered
+for each reduction. As a matter of fact, such hooks could also be
+used to generate the yydebug traces. Some generic scheme probably
+exists in there.
+
+XML output for GNU Bison and gcc
+ http://www.cs.may.ie/~jpower/Research/bisonXML/
+
+XML output for GNU Bison
+ http://yaxx.sourceforge.net/
+
+* Unit rules
+Maybe we could expand unit rules, i.e., transform
+
+ exp: arith | bool;
+ arith: exp '+' exp;
+ bool: exp '&' exp;
+
+into
+
+ exp: exp '+' exp | exp '&' exp;
+
+when there are no actions. This can significantly speed up some
+grammars. I can't find the papers. In particular the book `LR
+parsing: Theory and Practice' is impossible to find, but according to
+`Parsing Techniques: a Practical Guide', it includes information about
+this issue. Does anybody have it?
+
+
+
+* Documentation
+
+** History/Bibliography
+Some history of Bison and some bibliography would be most welcome.
+Are there any Texinfo standards for bibliography?
+
+
+
+* Java, Fortran, etc.
+
+
+** Java
+
+There are a couple of proposed outputs:
+
+- BYACC/J
+ which is based on Byacc.
+ <http://troi.lincom-asg.com/~rjamison/byacc/>
+
+- Bison Java
+ which is based on Bison.
+ <http://www.goice.co.jp/member/mo/hack-progs/bison-java.html>
+
+Sebastien Serrurier (serrur_s@epita.fr) is working on this: he is
+expected to contact the authors, design the output, and implement it
+into Bison.
+
+
+* Coding system independence
+Paul notes:
+
+ Currently Bison assumes 8-bit bytes (i.e. that UCHAR_MAX is
+ 255). It also assumes that the 8-bit character encoding is
+ the same for the invocation of 'bison' as it is for the
+ invocation of 'cc', but this is not necessarily true when
+ people run bison on an ASCII host and then use cc on an EBCDIC
+ host. I don't think these topics are worth our time
+ addressing (unless we find a gung-ho volunteer for EBCDIC or
+ PDP-10 ports :-) but they should probably be documented
+ somewhere.
+
+ More importantly, Bison does not currently allow NUL bytes in
+ tokens, either via escapes (e.g., "x\0y") or via a NUL byte in
+ the source code. This should get fixed.
+
+* --graph
+Show reductions.
+
+* Broken options ?
+** %no-parser
+** %token-table
+** Skeleton strategy
+Must we keep %no-parser? %token-table?
+
+* src/print_graph.c
+Find the best graph parameters.
+
+* BTYacc
+See if we can integrate backtracking in Bison. Charles-Henri de
+Boysson <de-boy_c@epita.fr> is working on this, and already has some
+results. Vadim Maslow, the maintainer of BTYacc was contacted, and we
+stay in touch with him. Adjusting the Bison grammar parser will be
+needed to support some extra BTYacc features. This is less urgent.
+
+** Keeping the conflicted actions
+First, analyze the differences between byacc and btyacc (I'm referring
+to the executables). Find where the conflicts are preserved.
+
+** Compare with the GLR tables
+See how isomorphic the way BTYacc and the way the GLR adjustments in
+Bison are compatible. *As much as possible* one should try to use the
+same implementation in the Bison executables. I insist: it should be
+very feasible to use the very same conflict tables.
+
+** Adjust the skeletons
+Import the skeletons for C and C++.
+
+** Improve the skeletons
+Have them support yysymprint, yydestruct and so forth.
+
+
+* Precedence
+
+** Partial order
+It is unfortunate that there is a total order for precedence. It
+makes it impossible to have modular precedence information. We should
+move to partial orders (sounds like series/parallel orders to me).
+
+This will be possible with a Bison parser for the grammar, as it will
+make it much easier to extend the grammar.
+
+** Correlation b/w precedence and associativity
+Also, I fail to understand why we have to assign the same
+associativity to operators with the same precedence. For instance,
+why can't I decide that the precedence of * and / is the same, but the
+latter is nonassoc?
+
+If there is really no profound motivation, we should find a new syntax
+to allow specifying this.
+
+** RR conflicts
+See if we can use precedence between rules to solve RR conflicts. See
+what POSIX says.
+
+
+* $undefined
+From Hans:
+- If the Bison generated parser experiences an undefined number in the
+character range, that character is written out in diagnostic messages, an
+addition to the $undefined value.
+
+Suggest: Change the name $undefined to undefined; looks better in outputs.
+
+
+* Default Action
+From Hans:
+- For use with my C++ parser, I transported the "switch (yyn)" statement
+that Bison writes to the bison.simple skeleton file. This way, I can remove
+the current default rule $$ = $1 implementation, which causes a double
+assignment to $$ which may not be OK under C++, replacing it with a
+"default:" part within the switch statement.
+
+Note that the default rule $$ = $1, when typed, is perfectly OK under C,
+but in the C++ implementation I made, this rule is different from
+$<type_name>$ = $<type_name>1. I therefore think that one should implement
+a Bison option where every typed default rule is explicitly written out
+(same typed ruled can of course be grouped together).
+
+Note: Robert Anisko handles this. He knows how to do it.
+
+
+* Warnings
+It would be nice to have warning support. See how Autoconf handles
+them, it is fairly well described there. It would be very nice to
+implement this in such a way that other programs could use
+lib/warnings.[ch].
+
+Don't work on this without first announcing you do, as I already have
+thought about it, and know many of the components that can be used to
+implement it.
+
+
+* Pre and post actions.
+From: Florian Krohm <florian@edamail.fishkill.ibm.com>
+Subject: YYACT_EPILOGUE
+To: bug-bison@gnu.org
+X-Sent: 1 week, 4 days, 14 hours, 38 minutes, 11 seconds ago
+
+The other day I had the need for explicitly building the parse tree. I
+used %locations for that and defined YYLLOC_DEFAULT to call a function
+that returns the tree node for the production. Easy. But I also needed
+to assign the S-attribute to the tree node. That cannot be done in
+YYLLOC_DEFAULT, because it is invoked before the action is executed.
+The way I solved this was to define a macro YYACT_EPILOGUE that would
+be invoked after the action. For reasons of symmetry I also added
+YYACT_PROLOGUE. Although I had no use for that I can envision how it
+might come in handy for debugging purposes.
+All is needed is to add
+
+#if YYLSP_NEEDED
+ YYACT_EPILOGUE (yyval, (yyvsp - yylen), yylen, yyloc, (yylsp - yylen));
+#else
+ YYACT_EPILOGUE (yyval, (yyvsp - yylen), yylen);
+#endif
+
+at the proper place to bison.simple. Ditto for YYACT_PROLOGUE.
+
+I was wondering what you think about adding YYACT_PROLOGUE/EPILOGUE
+to bison. If you're interested, I'll work on a patch.
+
+* Move to Graphviz
+Well, VCG seems really dead. Move to Graphviz instead. Also, equip
+the parser with a means to create the (visual) parse tree.
+
+-----
+
+Copyright (C) 2001, 2002, 2003, 2004, 2006 Free Software Foundation,
+Inc.
+
+This file is part of Bison, the GNU Compiler Compiler.
+
+Bison is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+Bison is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Bison; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
diff --git a/aclocal.m4 b/aclocal.m4
new file mode 100644
index 0000000..3c5426a
--- /dev/null
+++ b/aclocal.m4
@@ -0,0 +1,924 @@
+# generated automatically by aclocal 1.9.6 -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+# Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_AUTOMAKE_VERSION(VERSION)
+# ----------------------------
+# Automake X.Y traces this macro to ensure aclocal.m4 has been
+# generated from the m4 files accompanying Automake X.Y.
+AC_DEFUN([AM_AUTOMAKE_VERSION], [am__api_version="1.9"])
+
+# AM_SET_CURRENT_AUTOMAKE_VERSION
+# -------------------------------
+# Call AM_AUTOMAKE_VERSION so it can be traced.
+# This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
+AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
+ [AM_AUTOMAKE_VERSION([1.9.6])])
+
+# AM_AUX_DIR_EXPAND -*- Autoconf -*-
+
+# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
+# $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to
+# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
+#
+# Of course, Automake must honor this variable whenever it calls a
+# tool from the auxiliary directory. The problem is that $srcdir (and
+# therefore $ac_aux_dir as well) can be either absolute or relative,
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+# it makes $ac_aux_dir quite unusable in subdirectories: in the top
+# source directory, any form will work fine, but in subdirectories a
+# relative path needs to be adjusted first.
+#
+# $ac_aux_dir/missing
+# fails when called from a subdirectory if $ac_aux_dir is relative
+# $top_srcdir/$ac_aux_dir/missing
+# fails if $ac_aux_dir is absolute,
+# fails when called from a subdirectory in a VPATH build with
+# a relative $ac_aux_dir
+#
+# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
+# are both prefixed by $srcdir. In an in-source build this is usually
+# harmless because $srcdir is `.', but things will broke when you
+# start a VPATH build or use an absolute $srcdir.
+#
+# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
+# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
+# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
+# and then we would define $MISSING as
+# MISSING="\${SHELL} $am_aux_dir/missing"
+# This will work as long as MISSING is not called from configure, because
+# unfortunately $(top_srcdir) has no meaning in configure.
+# However there are other variables, like CC, which are often used in
+# configure, and could therefore not use this "fixed" $ac_aux_dir.
+#
+# Another solution, used here, is to always expand $ac_aux_dir to an
+# absolute PATH. The drawback is that using absolute paths prevent a
+# configured tree to be moved without reconfiguration.
+
+AC_DEFUN([AM_AUX_DIR_EXPAND],
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+AC_PREREQ([2.50])dnl
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+])
+
+
+# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 4
+
+# This was merged into AC_PROG_CC in Autoconf.
+
+AU_DEFUN([AM_PROG_CC_STDC],
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+AC_DIAGNOSE([obsolete], [$0:
+ your code should no longer depend upon `am_cv_prog_cc_stdc', but upon
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+ you adjust the code. You can also remove the above call to
+ AC_PROG_CC if you already called it elsewhere.])
+am_cv_prog_cc_stdc=$ac_cv_prog_cc_stdc
+])
+AU_DEFUN([fp_PROG_CC_STDC])
+
+# AM_CONDITIONAL -*- Autoconf -*-
+
+# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 7
+
+# AM_CONDITIONAL(NAME, SHELL-CONDITION)
+# -------------------------------------
+# Define a conditional.
+AC_DEFUN([AM_CONDITIONAL],
+[AC_PREREQ(2.52)dnl
+ ifelse([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
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+ AC_MSG_ERROR([[conditional "$1" was never defined.
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+fi])])
+
+
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 8
+
+# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# written in clear, in which case automake, when reading aclocal.m4,
+# will think it sees a *use*, and therefore will trigger all it's
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+# _AM_DEPENDENCIES(NAME)
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+ echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
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+ ;;
+ none) break ;;
+ esac
+ # We check with `-c' and `-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
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+ if depmode=$depmode \
+ source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
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+ # icc: Command line warning: ignoring option '-M'; no argument required
+ # The diagnosis changed in icc 8.0:
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+# Generate code to set up dependency tracking. -*- Autoconf -*-
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+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+#serial 3
+
+# _AM_OUTPUT_DEPENDENCY_COMMANDS
+# ------------------------------
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+ # Check whether this is an Automake generated Makefile or not.
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+ # Find all dependency output files, they are included files with
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+# AM_OUTPUT_DEPENDENCY_COMMANDS
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+ [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
+])
+
+# Do all the work for Automake. -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 12
+
+# This macro actually does too much. Some checks are only needed if
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+echo "timestamp for $1" >`AS_DIRNAME([$1])`/stamp-h[]$_am_stamp_count])
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+# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
+#
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+# AM_PROG_INSTALL_SH
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+# Copyright (C) 2003, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+#
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+# gives unlimited permission to copy and/or distribute it,
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+
+# serial 3
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+# AM_MAKE_INCLUDE()
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+# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
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+# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2005
+# Free Software Foundation, Inc.
+#
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+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+# serial 4
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+[AC_MSG_CHECKING([whether build environment is sane])
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments. Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+ set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+ if test "$[*]" = "X"; then
+ # -L didn't work.
+ set X `ls -t $srcdir/configure conftest.file`
+ fi
+ rm -f conftest.file
+ if test "$[*]" != "X $srcdir/configure conftest.file" \
+ && test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+ # If neither matched, then we have a broken ls. This can happen
+ # if, for instance, CONFIG_SHELL is bash and it inherits a
+ # broken ls alias from the environment. This has actually
+ # happened. Such a system could not be considered "sane".
+ AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
+alias in your environment])
+ fi
+
+ test "$[2]" = conftest.file
+ )
+then
+ # Ok.
+ :
+else
+ AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT(yes)])
+
+# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor `install' (even GNU) is that you can't
+# specify the program used to strip binaries. This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in `make install-strip', and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'. However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
+if test "$cross_compiling" != no; then
+ AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Check how to create a tarball. -*- Autoconf -*-
+
+# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of `v7', `ustar', or `pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+# tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+# $(am__untar) < result.tar
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.
+AM_MISSING_PROG([AMTAR], [tar])
+m4_if([$1], [v7],
+ [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
+ [m4_case([$1], [ustar],, [pax],,
+ [m4_fatal([Unknown tar format])])
+AC_MSG_CHECKING([how to create a $1 tar archive])
+# Loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+_am_tools=${am_cv_prog_tar_$1-$_am_tools}
+# Do not fold the above two line into one, because Tru64 sh and
+# Solaris sh will not grok spaces in the rhs of `-'.
+for _am_tool in $_am_tools
+do
+ case $_am_tool in
+ gnutar)
+ for _am_tar in tar gnutar gtar;
+ do
+ AM_RUN_LOG([$_am_tar --version]) && break
+ done
+ am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+ am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+ am__untar="$_am_tar -xf -"
+ ;;
+ plaintar)
+ # Must skip GNU tar: if it does not support --format= it doesn't create
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+ am__tar='tar chf - "$$tardir"'
+ am__tar_='tar chf - "$tardir"'
+ am__untar='tar xf -'
+ ;;
+ pax)
+ am__tar='pax -L -x $1 -w "$$tardir"'
+ am__tar_='pax -L -x $1 -w "$tardir"'
+ am__untar='pax -r'
+ ;;
+ cpio)
+ am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+ am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+ am__untar='cpio -i -H $1 -d'
+ ;;
+ none)
+ am__tar=false
+ am__tar_=false
+ am__untar=false
+ ;;
+ esac
+
+ # If the value was cached, stop now. We just wanted to have am__tar
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+ test -n "${am_cv_prog_tar_$1}" && break
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+ AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
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+ AM_RUN_LOG([$am__untar <conftest.tar])
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+
+AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
+m4_include([m4/bison-i18n.m4])
+m4_include([m4/c-working.m4])
+m4_include([m4/cxx.m4])
+m4_include([m4/dirname.m4])
+m4_include([m4/dmalloc.m4])
+m4_include([m4/dos.m4])
+m4_include([m4/error.m4])
+m4_include([m4/exitfail.m4])
+m4_include([m4/extensions.m4])
+m4_include([m4/getopt.m4])
+m4_include([m4/gettext_gl.m4])
+m4_include([m4/gnulib.m4])
+m4_include([m4/hard-locale.m4])
+m4_include([m4/hash.m4])
+m4_include([m4/iconv.m4])
+m4_include([m4/inttypes_h_gl.m4])
+m4_include([m4/lib-ld_gl.m4])
+m4_include([m4/lib-link.m4])
+m4_include([m4/lib-prefix_gl.m4])
+m4_include([m4/m4.m4])
+m4_include([m4/mbrtowc.m4])
+m4_include([m4/mbstate_t.m4])
+m4_include([m4/mbswidth.m4])
+m4_include([m4/nls.m4])
+m4_include([m4/obstack.m4])
+m4_include([m4/onceonly.m4])
+m4_include([m4/po_gl.m4])
+m4_include([m4/progtest.m4])
+m4_include([m4/quote.m4])
+m4_include([m4/quotearg.m4])
+m4_include([m4/stdbool.m4])
+m4_include([m4/stdint_h_gl.m4])
+m4_include([m4/stdio-safer.m4])
+m4_include([m4/stpcpy.m4])
+m4_include([m4/strdup.m4])
+m4_include([m4/strerror.m4])
+m4_include([m4/strndup.m4])
+m4_include([m4/strnlen.m4])
+m4_include([m4/strtol.m4])
+m4_include([m4/strtoul.m4])
+m4_include([m4/strverscmp.m4])
+m4_include([m4/subpipe.m4])
+m4_include([m4/timevar.m4])
+m4_include([m4/uintmax_t_gl.m4])
+m4_include([m4/ulonglong_gl.m4])
+m4_include([m4/unistd-safer.m4])
+m4_include([m4/unistd_h.m4])
+m4_include([m4/unlocked-io.m4])
+m4_include([m4/warning.m4])
+m4_include([m4/xalloc.m4])
+m4_include([m4/xstrndup.m4])
diff --git a/build-aux/Makefile b/build-aux/Makefile
new file mode 100644
index 0000000..54f34ca
--- /dev/null
+++ b/build-aux/Makefile
@@ -0,0 +1,356 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# build-aux/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+srcdir = .
+top_srcdir = ..
+
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+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = /usr/bin/install -c
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
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+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
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+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-info-am
+
+.PHONY: all all-am check check-am clean clean-generic distclean \
+ distclean-generic distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-exec \
+ install-exec-am install-info install-info-am install-man \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-generic pdf pdf-am ps ps-am uninstall uninstall-am \
+ uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/build-aux/Makefile.am b/build-aux/Makefile.am
new file mode 100644
index 0000000..0e2ef7a
--- /dev/null
+++ b/build-aux/Makefile.am
@@ -0,0 +1,2 @@
+## Process this file with automake to produce Makefile.in -*-Makefile-*-
+EXTRA_DIST = prev-version.txt
diff --git a/build-aux/Makefile.in b/build-aux/Makefile.in
new file mode 100644
index 0000000..8a90fc8
--- /dev/null
+++ b/build-aux/Makefile.in
@@ -0,0 +1,356 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = build-aux
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in config.guess \
+ config.rpath config.sub depcomp install-sh mdate-sh missing \
+ mkinstalldirs texinfo.tex ylwrap
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
+ $(top_srcdir)/m4/c-working.m4 $(top_srcdir)/m4/cxx.m4 \
+ $(top_srcdir)/m4/dirname.m4 $(top_srcdir)/m4/dmalloc.m4 \
+ $(top_srcdir)/m4/dos.m4 $(top_srcdir)/m4/error.m4 \
+ $(top_srcdir)/m4/exitfail.m4 $(top_srcdir)/m4/extensions.m4 \
+ $(top_srcdir)/m4/getopt.m4 $(top_srcdir)/m4/gettext_gl.m4 \
+ $(top_srcdir)/m4/gnulib.m4 $(top_srcdir)/m4/hard-locale.m4 \
+ $(top_srcdir)/m4/hash.m4 $(top_srcdir)/m4/iconv.m4 \
+ $(top_srcdir)/m4/inttypes_h_gl.m4 \
+ $(top_srcdir)/m4/lib-ld_gl.m4 $(top_srcdir)/m4/lib-link.m4 \
+ $(top_srcdir)/m4/lib-prefix_gl.m4 $(top_srcdir)/m4/m4.m4 \
+ $(top_srcdir)/m4/mbrtowc.m4 $(top_srcdir)/m4/mbstate_t.m4 \
+ $(top_srcdir)/m4/mbswidth.m4 $(top_srcdir)/m4/nls.m4 \
+ $(top_srcdir)/m4/obstack.m4 $(top_srcdir)/m4/onceonly.m4 \
+ $(top_srcdir)/m4/po_gl.m4 $(top_srcdir)/m4/progtest.m4 \
+ $(top_srcdir)/m4/quote.m4 $(top_srcdir)/m4/quotearg.m4 \
+ $(top_srcdir)/m4/stdbool.m4 $(top_srcdir)/m4/stdint_h_gl.m4 \
+ $(top_srcdir)/m4/stdio-safer.m4 $(top_srcdir)/m4/stpcpy.m4 \
+ $(top_srcdir)/m4/strdup.m4 $(top_srcdir)/m4/strerror.m4 \
+ $(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
+ $(top_srcdir)/m4/strtol.m4 $(top_srcdir)/m4/strtoul.m4 \
+ $(top_srcdir)/m4/strverscmp.m4 $(top_srcdir)/m4/subpipe.m4 \
+ $(top_srcdir)/m4/timevar.m4 $(top_srcdir)/m4/uintmax_t_gl.m4 \
+ $(top_srcdir)/m4/ulonglong_gl.m4 \
+ $(top_srcdir)/m4/unistd-safer.m4 $(top_srcdir)/m4/unistd_h.m4 \
+ $(top_srcdir)/m4/unlocked-io.m4 $(top_srcdir)/m4/warning.m4 \
+ $(top_srcdir)/m4/xalloc.m4 $(top_srcdir)/m4/xstrndup.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/build-aux/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+SOURCES =
+DIST_SOURCES =
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMDEP_FALSE = @AMDEP_FALSE@
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+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOM4TE = @AUTOM4TE@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BISON_CXX_WORKS = @BISON_CXX_WORKS@
+BISON_CXX_WORKS_FALSE = @BISON_CXX_WORKS_FALSE@
+BISON_CXX_WORKS_TRUE = @BISON_CXX_WORKS_TRUE@
+BISON_LOCALEDIR = @BISON_LOCALEDIR@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
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+GCC = @GCC@
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+HAVE__BOOL = @HAVE__BOOL@
+INSTALL_DATA = @INSTALL_DATA@
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+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+INTLLIBS = @INTLLIBS@
+INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@
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+M4 = @M4@
+MAKEINFO = @MAKEINFO@
+MKINSTALLDIRS = @MKINSTALLDIRS@
+MSGFMT = @MSGFMT@
+MSGMERGE = @MSGMERGE@
+O0CFLAGS = @O0CFLAGS@
+O0CXXFLAGS = @O0CXXFLAGS@
+OBJEXT = @OBJEXT@
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+PACKAGE_TARNAME = @PACKAGE_TARNAME@
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+PATH_SEPARATOR = @PATH_SEPARATOR@
+POSUB = @POSUB@
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+SET_MAKE = @SET_MAKE@
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+STDBOOL_H = @STDBOOL_H@
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+UNISTD_H = @UNISTD_H@
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+VALGRIND = @VALGRIND@
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+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
+WERROR_CFLAGS = @WERROR_CFLAGS@
+XGETTEXT = @XGETTEXT@
+YACC = @YACC@
+YACC_LIBRARY = @YACC_LIBRARY@
+YACC_SCRIPT = @YACC_SCRIPT@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
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+ac_ct_STRIP = @ac_ct_STRIP@
+aclocaldir = @aclocaldir@
+am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
+am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
+am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
+am__fastdepCXX_TRUE = @am__fastdepCXX_TRUE@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
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+bindir = @bindir@
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+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+datadir = @datadir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+EXTRA_DIST = prev-version.txt
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+ && exit 0; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu build-aux/Makefile'; \
+ cd $(top_srcdir) && \
+ $(AUTOMAKE) --gnu build-aux/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+ esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+uninstall-info-am:
+tags: TAGS
+TAGS:
+
+ctags: CTAGS
+CTAGS:
+
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+ list='$(DISTFILES)'; for file in $$list; do \
+ case $$file in \
+ $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+ $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+ esac; \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+ dir="/$$dir"; \
+ $(mkdir_p) "$(distdir)$$dir"; \
+ else \
+ dir=''; \
+ fi; \
+ if test -d $$d/$$file; then \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-am
+ -rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-info-am
+
+.PHONY: all all-am check check-am clean clean-generic distclean \
+ distclean-generic distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-exec \
+ install-exec-am install-info install-info-am install-man \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-generic pdf pdf-am ps ps-am uninstall uninstall-am \
+ uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/build-aux/config.guess b/build-aux/config.guess
new file mode 100755
index 0000000..917bbc5
--- /dev/null
+++ b/build-aux/config.guess
@@ -0,0 +1,1463 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+# 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+timestamp='2005-07-08'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+# 02110-1301, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+
+# Originally written by Per Bothner <per@bothner.com>.
+# Please send patches to <config-patches@gnu.org>. Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# This script attempts to guess a canonical system name similar to
+# config.sub. If it succeeds, it prints the system name on stdout, and
+# exits with 0. Otherwise, it exits with 1.
+#
+# The plan is that this can be called by configure scripts if you
+# don't specify an explicit build system type.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+ -h, --help print this help, then exit
+ -t, --time-stamp print date of last modification, then exit
+ -v, --version print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+ case $1 in
+ --time-stamp | --time* | -t )
+ echo "$timestamp" ; exit ;;
+ --version | -v )
+ echo "$version" ; exit ;;
+ --help | --h* | -h )
+ echo "$usage"; exit ;;
+ -- ) # Stop option processing
+ shift; break ;;
+ - ) # Use stdin as input.
+ break ;;
+ -* )
+ echo "$me: invalid option $1$help" >&2
+ exit 1 ;;
+ * )
+ break ;;
+ esac
+done
+
+if test $# != 0; then
+ echo "$me: too many arguments$help" >&2
+ exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,) echo "int x;" > $dummy.c ;
+ for c in cc gcc c89 c99 ; do
+ if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+ CC_FOR_BUILD="$c"; break ;
+ fi ;
+ done ;
+ if test x"$CC_FOR_BUILD" = x ; then
+ CC_FOR_BUILD=no_compiler_found ;
+ fi
+ ;;
+ ,,*) CC_FOR_BUILD=$CC ;;
+ ,*,*) CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+ PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+ *:NetBSD:*:*)
+ # NetBSD (nbsd) targets should (where applicable) match one or
+ # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+ # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
+ # switched to ELF, *-*-netbsd* would select the old
+ # object file format. This provides both forward
+ # compatibility and a consistent mechanism for selecting the
+ # object file format.
+ #
+ # Note: NetBSD doesn't particularly care about the vendor
+ # portion of the name. We always set it to "unknown".
+ sysctl="sysctl -n hw.machine_arch"
+ UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+ /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+ case "${UNAME_MACHINE_ARCH}" in
+ armeb) machine=armeb-unknown ;;
+ arm*) machine=arm-unknown ;;
+ sh3el) machine=shl-unknown ;;
+ sh3eb) machine=sh-unknown ;;
+ *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+ esac
+ # The Operating System including object format, if it has switched
+ # to ELF recently, or will in the future.
+ case "${UNAME_MACHINE_ARCH}" in
+ arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+ eval $set_cc_for_build
+ if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+ | grep __ELF__ >/dev/null
+ then
+ # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+ # Return netbsd for either. FIX?
+ os=netbsd
+ else
+ os=netbsdelf
+ fi
+ ;;
+ *)
+ os=netbsd
+ ;;
+ esac
+ # The OS release
+ # Debian GNU/NetBSD machines have a different userland, and
+ # thus, need a distinct triplet. However, they do not need
+ # kernel version information, so it can be replaced with a
+ # suitable tag, in the style of linux-gnu.
+ case "${UNAME_VERSION}" in
+ Debian*)
+ release='-gnu'
+ ;;
+ *)
+ release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+ ;;
+ esac
+ # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+ # contains redundant information, the shorter form:
+ # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+ echo "${machine}-${os}${release}"
+ exit ;;
+ *:OpenBSD:*:*)
+ UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+ echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
+ exit ;;
+ *:ekkoBSD:*:*)
+ echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+ exit ;;
+ macppc:MirBSD:*:*)
+ echo powerppc-unknown-mirbsd${UNAME_RELEASE}
+ exit ;;
+ *:MirBSD:*:*)
+ echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+ exit ;;
+ alpha:OSF1:*:*)
+ case $UNAME_RELEASE in
+ *4.0)
+ UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+ ;;
+ *5.*)
+ UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+ ;;
+ esac
+ # According to Compaq, /usr/sbin/psrinfo has been available on
+ # OSF/1 and Tru64 systems produced since 1995. I hope that
+ # covers most systems running today. This code pipes the CPU
+ # types through head -n 1, so we only detect the type of CPU 0.
+ ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+ case "$ALPHA_CPU_TYPE" in
+ "EV4 (21064)")
+ UNAME_MACHINE="alpha" ;;
+ "EV4.5 (21064)")
+ UNAME_MACHINE="alpha" ;;
+ "LCA4 (21066/21068)")
+ UNAME_MACHINE="alpha" ;;
+ "EV5 (21164)")
+ UNAME_MACHINE="alphaev5" ;;
+ "EV5.6 (21164A)")
+ UNAME_MACHINE="alphaev56" ;;
+ "EV5.6 (21164PC)")
+ UNAME_MACHINE="alphapca56" ;;
+ "EV5.7 (21164PC)")
+ UNAME_MACHINE="alphapca57" ;;
+ "EV6 (21264)")
+ UNAME_MACHINE="alphaev6" ;;
+ "EV6.7 (21264A)")
+ UNAME_MACHINE="alphaev67" ;;
+ "EV6.8CB (21264C)")
+ UNAME_MACHINE="alphaev68" ;;
+ "EV6.8AL (21264B)")
+ UNAME_MACHINE="alphaev68" ;;
+ "EV6.8CX (21264D)")
+ UNAME_MACHINE="alphaev68" ;;
+ "EV6.9A (21264/EV69A)")
+ UNAME_MACHINE="alphaev69" ;;
+ "EV7 (21364)")
+ UNAME_MACHINE="alphaev7" ;;
+ "EV7.9 (21364A)")
+ UNAME_MACHINE="alphaev79" ;;
+ esac
+ # A Pn.n version is a patched version.
+ # A Vn.n version is a released version.
+ # A Tn.n version is a released field test version.
+ # A Xn.n version is an unreleased experimental baselevel.
+ # 1.2 uses "1.2" for uname -r.
+ echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+ exit ;;
+ Alpha\ *:Windows_NT*:*)
+ # How do we know it's Interix rather than the generic POSIX subsystem?
+ # Should we change UNAME_MACHINE based on the output of uname instead
+ # of the specific Alpha model?
+ echo alpha-pc-interix
+ exit ;;
+ 21064:Windows_NT:50:3)
+ echo alpha-dec-winnt3.5
+ exit ;;
+ Amiga*:UNIX_System_V:4.0:*)
+ echo m68k-unknown-sysv4
+ exit ;;
+ *:[Aa]miga[Oo][Ss]:*:*)
+ echo ${UNAME_MACHINE}-unknown-amigaos
+ exit ;;
+ *:[Mm]orph[Oo][Ss]:*:*)
+ echo ${UNAME_MACHINE}-unknown-morphos
+ exit ;;
+ *:OS/390:*:*)
+ echo i370-ibm-openedition
+ exit ;;
+ *:z/VM:*:*)
+ echo s390-ibm-zvmoe
+ exit ;;
+ *:OS400:*:*)
+ echo powerpc-ibm-os400
+ exit ;;
+ arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+ echo arm-acorn-riscix${UNAME_RELEASE}
+ exit ;;
+ arm:riscos:*:*|arm:RISCOS:*:*)
+ echo arm-unknown-riscos
+ exit ;;
+ SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+ echo hppa1.1-hitachi-hiuxmpp
+ exit ;;
+ Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+ # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+ if test "`(/bin/universe) 2>/dev/null`" = att ; then
+ echo pyramid-pyramid-sysv3
+ else
+ echo pyramid-pyramid-bsd
+ fi
+ exit ;;
+ NILE*:*:*:dcosx)
+ echo pyramid-pyramid-svr4
+ exit ;;
+ DRS?6000:unix:4.0:6*)
+ echo sparc-icl-nx6
+ exit ;;
+ DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+ case `/usr/bin/uname -p` in
+ sparc) echo sparc-icl-nx7; exit ;;
+ esac ;;
+ sun4H:SunOS:5.*:*)
+ echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+ exit ;;
+ sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+ echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+ exit ;;
+ i86pc:SunOS:5.*:*)
+ echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+ exit ;;
+ sun4*:SunOS:6*:*)
+ # According to config.sub, this is the proper way to canonicalize
+ # SunOS6. Hard to guess exactly what SunOS6 will be like, but
+ # it's likely to be more like Solaris than SunOS4.
+ echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+ exit ;;
+ sun4*:SunOS:*:*)
+ case "`/usr/bin/arch -k`" in
+ Series*|S4*)
+ UNAME_RELEASE=`uname -v`
+ ;;
+ esac
+ # Japanese Language versions have a version number like `4.1.3-JL'.
+ echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+ exit ;;
+ sun3*:SunOS:*:*)
+ echo m68k-sun-sunos${UNAME_RELEASE}
+ exit ;;
+ sun*:*:4.2BSD:*)
+ UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+ test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+ case "`/bin/arch`" in
+ sun3)
+ echo m68k-sun-sunos${UNAME_RELEASE}
+ ;;
+ sun4)
+ echo sparc-sun-sunos${UNAME_RELEASE}
+ ;;
+ esac
+ exit ;;
+ aushp:SunOS:*:*)
+ echo sparc-auspex-sunos${UNAME_RELEASE}
+ exit ;;
+ # The situation for MiNT is a little confusing. The machine name
+ # can be virtually everything (everything which is not
+ # "atarist" or "atariste" at least should have a processor
+ # > m68000). The system name ranges from "MiNT" over "FreeMiNT"
+ # to the lowercase version "mint" (or "freemint"). Finally
+ # the system name "TOS" denotes a system which is actually not
+ # MiNT. But MiNT is downward compatible to TOS, so this should
+ # be no problem.
+ atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+ echo m68k-atari-mint${UNAME_RELEASE}
+ exit ;;
+ atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+ echo m68k-atari-mint${UNAME_RELEASE}
+ exit ;;
+ *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+ echo m68k-atari-mint${UNAME_RELEASE}
+ exit ;;
+ milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+ echo m68k-milan-mint${UNAME_RELEASE}
+ exit ;;
+ hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+ echo m68k-hades-mint${UNAME_RELEASE}
+ exit ;;
+ *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+ echo m68k-unknown-mint${UNAME_RELEASE}
+ exit ;;
+ m68k:machten:*:*)
+ echo m68k-apple-machten${UNAME_RELEASE}
+ exit ;;
+ powerpc:machten:*:*)
+ echo powerpc-apple-machten${UNAME_RELEASE}
+ exit ;;
+ RISC*:Mach:*:*)
+ echo mips-dec-mach_bsd4.3
+ exit ;;
+ RISC*:ULTRIX:*:*)
+ echo mips-dec-ultrix${UNAME_RELEASE}
+ exit ;;
+ VAX*:ULTRIX*:*:*)
+ echo vax-dec-ultrix${UNAME_RELEASE}
+ exit ;;
+ 2020:CLIX:*:* | 2430:CLIX:*:*)
+ echo clipper-intergraph-clix${UNAME_RELEASE}
+ exit ;;
+ mips:*:*:UMIPS | mips:*:*:RISCos)
+ eval $set_cc_for_build
+ sed 's/^ //' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h> /* for printf() prototype */
+ int main (int argc, char *argv[]) {
+#else
+ int main (argc, argv) int argc; char *argv[]; {
+#endif
+ #if defined (host_mips) && defined (MIPSEB)
+ #if defined (SYSTYPE_SYSV)
+ printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+ #endif
+ #if defined (SYSTYPE_SVR4)
+ printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+ #endif
+ #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+ printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+ #endif
+ #endif
+ exit (-1);
+ }
+EOF
+ $CC_FOR_BUILD -o $dummy $dummy.c &&
+ dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+ SYSTEM_NAME=`$dummy $dummyarg` &&
+ { echo "$SYSTEM_NAME"; exit; }
+ echo mips-mips-riscos${UNAME_RELEASE}
+ exit ;;
+ Motorola:PowerMAX_OS:*:*)
+ echo powerpc-motorola-powermax
+ exit ;;
+ Motorola:*:4.3:PL8-*)
+ echo powerpc-harris-powermax
+ exit ;;
+ Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+ echo powerpc-harris-powermax
+ exit ;;
+ Night_Hawk:Power_UNIX:*:*)
+ echo powerpc-harris-powerunix
+ exit ;;
+ m88k:CX/UX:7*:*)
+ echo m88k-harris-cxux7
+ exit ;;
+ m88k:*:4*:R4*)
+ echo m88k-motorola-sysv4
+ exit ;;
+ m88k:*:3*:R3*)
+ echo m88k-motorola-sysv3
+ exit ;;
+ AViiON:dgux:*:*)
+ # DG/UX returns AViiON for all architectures
+ UNAME_PROCESSOR=`/usr/bin/uname -p`
+ if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+ then
+ if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+ [ ${TARGET_BINARY_INTERFACE}x = x ]
+ then
+ echo m88k-dg-dgux${UNAME_RELEASE}
+ else
+ echo m88k-dg-dguxbcs${UNAME_RELEASE}
+ fi
+ else
+ echo i586-dg-dgux${UNAME_RELEASE}
+ fi
+ exit ;;
+ M88*:DolphinOS:*:*) # DolphinOS (SVR3)
+ echo m88k-dolphin-sysv3
+ exit ;;
+ M88*:*:R3*:*)
+ # Delta 88k system running SVR3
+ echo m88k-motorola-sysv3
+ exit ;;
+ XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+ echo m88k-tektronix-sysv3
+ exit ;;
+ Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+ echo m68k-tektronix-bsd
+ exit ;;
+ *:IRIX*:*:*)
+ echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+ exit ;;
+ ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+ echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id
+ exit ;; # Note that: echo "'`uname -s`'" gives 'AIX '
+ i*86:AIX:*:*)
+ echo i386-ibm-aix
+ exit ;;
+ ia64:AIX:*:*)
+ if [ -x /usr/bin/oslevel ] ; then
+ IBM_REV=`/usr/bin/oslevel`
+ else
+ IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+ fi
+ echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+ exit ;;
+ *:AIX:2:3)
+ if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+ eval $set_cc_for_build
+ sed 's/^ //' << EOF >$dummy.c
+ #include <sys/systemcfg.h>
+
+ main()
+ {
+ if (!__power_pc())
+ exit(1);
+ puts("powerpc-ibm-aix3.2.5");
+ exit(0);
+ }
+EOF
+ if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+ then
+ echo "$SYSTEM_NAME"
+ else
+ echo rs6000-ibm-aix3.2.5
+ fi
+ elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+ echo rs6000-ibm-aix3.2.4
+ else
+ echo rs6000-ibm-aix3.2
+ fi
+ exit ;;
+ *:AIX:*:[45])
+ IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+ if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+ IBM_ARCH=rs6000
+ else
+ IBM_ARCH=powerpc
+ fi
+ if [ -x /usr/bin/oslevel ] ; then
+ IBM_REV=`/usr/bin/oslevel`
+ else
+ IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+ fi
+ echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+ exit ;;
+ *:AIX:*:*)
+ echo rs6000-ibm-aix
+ exit ;;
+ ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+ echo romp-ibm-bsd4.4
+ exit ;;
+ ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
+ echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to
+ exit ;; # report: romp-ibm BSD 4.3
+ *:BOSX:*:*)
+ echo rs6000-bull-bosx
+ exit ;;
+ DPX/2?00:B.O.S.:*:*)
+ echo m68k-bull-sysv3
+ exit ;;
+ 9000/[34]??:4.3bsd:1.*:*)
+ echo m68k-hp-bsd
+ exit ;;
+ hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+ echo m68k-hp-bsd4.4
+ exit ;;
+ 9000/[34678]??:HP-UX:*:*)
+ HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+ case "${UNAME_MACHINE}" in
+ 9000/31? ) HP_ARCH=m68000 ;;
+ 9000/[34]?? ) HP_ARCH=m68k ;;
+ 9000/[678][0-9][0-9])
+ if [ -x /usr/bin/getconf ]; then
+ sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+ sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+ case "${sc_cpu_version}" in
+ 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+ 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+ 532) # CPU_PA_RISC2_0
+ case "${sc_kernel_bits}" in
+ 32) HP_ARCH="hppa2.0n" ;;
+ 64) HP_ARCH="hppa2.0w" ;;
+ '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20
+ esac ;;
+ esac
+ fi
+ if [ "${HP_ARCH}" = "" ]; then
+ eval $set_cc_for_build
+ sed 's/^ //' << EOF >$dummy.c
+
+ #define _HPUX_SOURCE
+ #include <stdlib.h>
+ #include <unistd.h>
+
+ int main ()
+ {
+ #if defined(_SC_KERNEL_BITS)
+ long bits = sysconf(_SC_KERNEL_BITS);
+ #endif
+ long cpu = sysconf (_SC_CPU_VERSION);
+
+ switch (cpu)
+ {
+ case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+ case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+ case CPU_PA_RISC2_0:
+ #if defined(_SC_KERNEL_BITS)
+ switch (bits)
+ {
+ case 64: puts ("hppa2.0w"); break;
+ case 32: puts ("hppa2.0n"); break;
+ default: puts ("hppa2.0"); break;
+ } break;
+ #else /* !defined(_SC_KERNEL_BITS) */
+ puts ("hppa2.0"); break;
+ #endif
+ default: puts ("hppa1.0"); break;
+ }
+ exit (0);
+ }
+EOF
+ (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+ test -z "$HP_ARCH" && HP_ARCH=hppa
+ fi ;;
+ esac
+ if [ ${HP_ARCH} = "hppa2.0w" ]
+ then
+ eval $set_cc_for_build
+
+ # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+ # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler
+ # generating 64-bit code. GNU and HP use different nomenclature:
+ #
+ # $ CC_FOR_BUILD=cc ./config.guess
+ # => hppa2.0w-hp-hpux11.23
+ # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+ # => hppa64-hp-hpux11.23
+
+ if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+ grep __LP64__ >/dev/null
+ then
+ HP_ARCH="hppa2.0w"
+ else
+ HP_ARCH="hppa64"
+ fi
+ fi
+ echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+ exit ;;
+ ia64:HP-UX:*:*)
+ HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+ echo ia64-hp-hpux${HPUX_REV}
+ exit ;;
+ 3050*:HI-UX:*:*)
+ eval $set_cc_for_build
+ sed 's/^ //' << EOF >$dummy.c
+ #include <unistd.h>
+ int
+ main ()
+ {
+ long cpu = sysconf (_SC_CPU_VERSION);
+ /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+ true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct
+ results, however. */
+ if (CPU_IS_PA_RISC (cpu))
+ {
+ switch (cpu)
+ {
+ case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+ case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+ case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+ default: puts ("hppa-hitachi-hiuxwe2"); break;
+ }
+ }
+ else if (CPU_IS_HP_MC68K (cpu))
+ puts ("m68k-hitachi-hiuxwe2");
+ else puts ("unknown-hitachi-hiuxwe2");
+ exit (0);
+ }
+EOF
+ $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+ { echo "$SYSTEM_NAME"; exit; }
+ echo unknown-hitachi-hiuxwe2
+ exit ;;
+ 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+ echo hppa1.1-hp-bsd
+ exit ;;
+ 9000/8??:4.3bsd:*:*)
+ echo hppa1.0-hp-bsd
+ exit ;;
+ *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+ echo hppa1.0-hp-mpeix
+ exit ;;
+ hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+ echo hppa1.1-hp-osf
+ exit ;;
+ hp8??:OSF1:*:*)
+ echo hppa1.0-hp-osf
+ exit ;;
+ i*86:OSF1:*:*)
+ if [ -x /usr/sbin/sysversion ] ; then
+ echo ${UNAME_MACHINE}-unknown-osf1mk
+ else
+ echo ${UNAME_MACHINE}-unknown-osf1
+ fi
+ exit ;;
+ parisc*:Lites*:*:*)
+ echo hppa1.1-hp-lites
+ exit ;;
+ C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+ echo c1-convex-bsd
+ exit ;;
+ C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+ if getsysinfo -f scalar_acc
+ then echo c32-convex-bsd
+ else echo c2-convex-bsd
+ fi
+ exit ;;
+ C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+ echo c34-convex-bsd
+ exit ;;
+ C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+ echo c38-convex-bsd
+ exit ;;
+ C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+ echo c4-convex-bsd
+ exit ;;
+ CRAY*Y-MP:*:*:*)
+ echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*[A-Z]90:*:*:*)
+ echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+ -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*TS:*:*:*)
+ echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*T3E:*:*:*)
+ echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*SV1:*:*:*)
+ echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ *:UNICOS/mp:*:*)
+ echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+ FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+ FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+ FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+ echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+ exit ;;
+ 5000:UNIX_System_V:4.*:*)
+ FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+ FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+ echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+ exit ;;
+ i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+ echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+ exit ;;
+ sparc*:BSD/OS:*:*)
+ echo sparc-unknown-bsdi${UNAME_RELEASE}
+ exit ;;
+ *:BSD/OS:*:*)
+ echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+ exit ;;
+ *:FreeBSD:*:*)
+ echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+ exit ;;
+ i*:CYGWIN*:*)
+ echo ${UNAME_MACHINE}-pc-cygwin
+ exit ;;
+ i*:MINGW*:*)
+ echo ${UNAME_MACHINE}-pc-mingw32
+ exit ;;
+ i*:windows32*:*)
+ # uname -m includes "-pc" on this system.
+ echo ${UNAME_MACHINE}-mingw32
+ exit ;;
+ i*:PW*:*)
+ echo ${UNAME_MACHINE}-pc-pw32
+ exit ;;
+ x86:Interix*:[34]*)
+ echo i586-pc-interix${UNAME_RELEASE}|sed -e 's/\..*//'
+ exit ;;
+ [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
+ echo i${UNAME_MACHINE}-pc-mks
+ exit ;;
+ i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+ # How do we know it's Interix rather than the generic POSIX subsystem?
+ # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+ # UNAME_MACHINE based on the output of uname instead of i386?
+ echo i586-pc-interix
+ exit ;;
+ i*:UWIN*:*)
+ echo ${UNAME_MACHINE}-pc-uwin
+ exit ;;
+ amd64:CYGWIN*:*:*)
+ echo x86_64-unknown-cygwin
+ exit ;;
+ p*:CYGWIN*:*)
+ echo powerpcle-unknown-cygwin
+ exit ;;
+ prep*:SunOS:5.*:*)
+ echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+ exit ;;
+ *:GNU:*:*)
+ # the GNU system
+ echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+ exit ;;
+ *:GNU/*:*:*)
+ # other systems with GNU libc and userland
+ echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
+ exit ;;
+ i*86:Minix:*:*)
+ echo ${UNAME_MACHINE}-pc-minix
+ exit ;;
+ arm*:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ cris:Linux:*:*)
+ echo cris-axis-linux-gnu
+ exit ;;
+ crisv32:Linux:*:*)
+ echo crisv32-axis-linux-gnu
+ exit ;;
+ frv:Linux:*:*)
+ echo frv-unknown-linux-gnu
+ exit ;;
+ ia64:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ m32r*:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ m68*:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ mips:Linux:*:*)
+ eval $set_cc_for_build
+ sed 's/^ //' << EOF >$dummy.c
+ #undef CPU
+ #undef mips
+ #undef mipsel
+ #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+ CPU=mipsel
+ #else
+ #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+ CPU=mips
+ #else
+ CPU=
+ #endif
+ #endif
+EOF
+ eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
+ test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+ ;;
+ mips64:Linux:*:*)
+ eval $set_cc_for_build
+ sed 's/^ //' << EOF >$dummy.c
+ #undef CPU
+ #undef mips64
+ #undef mips64el
+ #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+ CPU=mips64el
+ #else
+ #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+ CPU=mips64
+ #else
+ CPU=
+ #endif
+ #endif
+EOF
+ eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
+ test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+ ;;
+ ppc:Linux:*:*)
+ echo powerpc-unknown-linux-gnu
+ exit ;;
+ ppc64:Linux:*:*)
+ echo powerpc64-unknown-linux-gnu
+ exit ;;
+ alpha:Linux:*:*)
+ case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+ EV5) UNAME_MACHINE=alphaev5 ;;
+ EV56) UNAME_MACHINE=alphaev56 ;;
+ PCA56) UNAME_MACHINE=alphapca56 ;;
+ PCA57) UNAME_MACHINE=alphapca56 ;;
+ EV6) UNAME_MACHINE=alphaev6 ;;
+ EV67) UNAME_MACHINE=alphaev67 ;;
+ EV68*) UNAME_MACHINE=alphaev68 ;;
+ esac
+ objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null
+ if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
+ echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+ exit ;;
+ parisc:Linux:*:* | hppa:Linux:*:*)
+ # Look for CPU level
+ case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+ PA7*) echo hppa1.1-unknown-linux-gnu ;;
+ PA8*) echo hppa2.0-unknown-linux-gnu ;;
+ *) echo hppa-unknown-linux-gnu ;;
+ esac
+ exit ;;
+ parisc64:Linux:*:* | hppa64:Linux:*:*)
+ echo hppa64-unknown-linux-gnu
+ exit ;;
+ s390:Linux:*:* | s390x:Linux:*:*)
+ echo ${UNAME_MACHINE}-ibm-linux
+ exit ;;
+ sh64*:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ sh*:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ sparc:Linux:*:* | sparc64:Linux:*:*)
+ echo ${UNAME_MACHINE}-unknown-linux-gnu
+ exit ;;
+ x86_64:Linux:*:*)
+ echo x86_64-unknown-linux-gnu
+ exit ;;
+ i*86:Linux:*:*)
+ # The BFD linker knows what the default object file format is, so
+ # first see if it will tell us. cd to the root directory to prevent
+ # problems with other programs or directories called `ld' in the path.
+ # Set LC_ALL=C to ensure ld outputs messages in English.
+ ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \
+ | sed -ne '/supported targets:/!d
+ s/[ ][ ]*/ /g
+ s/.*supported targets: *//
+ s/ .*//
+ p'`
+ case "$ld_supported_targets" in
+ elf32-i386)
+ TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu"
+ ;;
+ a.out-i386-linux)
+ echo "${UNAME_MACHINE}-pc-linux-gnuaout"
+ exit ;;
+ coff-i386)
+ echo "${UNAME_MACHINE}-pc-linux-gnucoff"
+ exit ;;
+ "")
+ # Either a pre-BFD a.out linker (linux-gnuoldld) or
+ # one that does not give us useful --help.
+ echo "${UNAME_MACHINE}-pc-linux-gnuoldld"
+ exit ;;
+ esac
+ # Determine whether the default compiler is a.out or elf
+ eval $set_cc_for_build
+ sed 's/^ //' << EOF >$dummy.c
+ #include <features.h>
+ #ifdef __ELF__
+ # ifdef __GLIBC__
+ # if __GLIBC__ >= 2
+ LIBC=gnu
+ # else
+ LIBC=gnulibc1
+ # endif
+ # else
+ LIBC=gnulibc1
+ # endif
+ #else
+ #ifdef __INTEL_COMPILER
+ LIBC=gnu
+ #else
+ LIBC=gnuaout
+ #endif
+ #endif
+ #ifdef __dietlibc__
+ LIBC=dietlibc
+ #endif
+EOF
+ eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=`
+ test x"${LIBC}" != x && {
+ echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+ exit
+ }
+ test x"${TENTATIVE}" != x && { echo "${TENTATIVE}"; exit; }
+ ;;
+ i*86:DYNIX/ptx:4*:*)
+ # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+ # earlier versions are messed up and put the nodename in both
+ # sysname and nodename.
+ echo i386-sequent-sysv4
+ exit ;;
+ i*86:UNIX_SV:4.2MP:2.*)
+ # Unixware is an offshoot of SVR4, but it has its own version
+ # number series starting with 2...
+ # I am not positive that other SVR4 systems won't match this,
+ # I just have to hope. -- rms.
+ # Use sysv4.2uw... so that sysv4* matches it.
+ echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+ exit ;;
+ i*86:OS/2:*:*)
+ # If we were able to find `uname', then EMX Unix compatibility
+ # is probably installed.
+ echo ${UNAME_MACHINE}-pc-os2-emx
+ exit ;;
+ i*86:XTS-300:*:STOP)
+ echo ${UNAME_MACHINE}-unknown-stop
+ exit ;;
+ i*86:atheos:*:*)
+ echo ${UNAME_MACHINE}-unknown-atheos
+ exit ;;
+ i*86:syllable:*:*)
+ echo ${UNAME_MACHINE}-pc-syllable
+ exit ;;
+ i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*)
+ echo i386-unknown-lynxos${UNAME_RELEASE}
+ exit ;;
+ i*86:*DOS:*:*)
+ echo ${UNAME_MACHINE}-pc-msdosdjgpp
+ exit ;;
+ i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+ UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+ if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+ echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+ else
+ echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+ fi
+ exit ;;
+ i*86:*:5:[678]*)
+ # UnixWare 7.x, OpenUNIX and OpenServer 6.
+ case `/bin/uname -X | grep "^Machine"` in
+ *486*) UNAME_MACHINE=i486 ;;
+ *Pentium) UNAME_MACHINE=i586 ;;
+ *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+ esac
+ echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+ exit ;;
+ i*86:*:3.2:*)
+ if test -f /usr/options/cb.name; then
+ UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+ echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+ elif /bin/uname -X 2>/dev/null >/dev/null ; then
+ UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+ (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+ (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+ && UNAME_MACHINE=i586
+ (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+ && UNAME_MACHINE=i686
+ (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+ && UNAME_MACHINE=i686
+ echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+ else
+ echo ${UNAME_MACHINE}-pc-sysv32
+ fi
+ exit ;;
+ pc:*:*:*)
+ # Left here for compatibility:
+ # uname -m prints for DJGPP always 'pc', but it prints nothing about
+ # the processor, so we play safe by assuming i386.
+ echo i386-pc-msdosdjgpp
+ exit ;;
+ Intel:Mach:3*:*)
+ echo i386-pc-mach3
+ exit ;;
+ paragon:*:*:*)
+ echo i860-intel-osf1
+ exit ;;
+ i860:*:4.*:*) # i860-SVR4
+ if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+ echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+ else # Add other i860-SVR4 vendors below as they are discovered.
+ echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4
+ fi
+ exit ;;
+ mini*:CTIX:SYS*5:*)
+ # "miniframe"
+ echo m68010-convergent-sysv
+ exit ;;
+ mc68k:UNIX:SYSTEM5:3.51m)
+ echo m68k-convergent-sysv
+ exit ;;
+ M680?0:D-NIX:5.3:*)
+ echo m68k-diab-dnix
+ exit ;;
+ M68*:*:R3V[5678]*:*)
+ test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+ 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+ OS_REL=''
+ test -r /etc/.relid \
+ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+ /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+ && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+ /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+ 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+ /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+ && { echo i486-ncr-sysv4; exit; } ;;
+ m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+ echo m68k-unknown-lynxos${UNAME_RELEASE}
+ exit ;;
+ mc68030:UNIX_System_V:4.*:*)
+ echo m68k-atari-sysv4
+ exit ;;
+ TSUNAMI:LynxOS:2.*:*)
+ echo sparc-unknown-lynxos${UNAME_RELEASE}
+ exit ;;
+ rs6000:LynxOS:2.*:*)
+ echo rs6000-unknown-lynxos${UNAME_RELEASE}
+ exit ;;
+ PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*)
+ echo powerpc-unknown-lynxos${UNAME_RELEASE}
+ exit ;;
+ SM[BE]S:UNIX_SV:*:*)
+ echo mips-dde-sysv${UNAME_RELEASE}
+ exit ;;
+ RM*:ReliantUNIX-*:*:*)
+ echo mips-sni-sysv4
+ exit ;;
+ RM*:SINIX-*:*:*)
+ echo mips-sni-sysv4
+ exit ;;
+ *:SINIX-*:*:*)
+ if uname -p 2>/dev/null >/dev/null ; then
+ UNAME_MACHINE=`(uname -p) 2>/dev/null`
+ echo ${UNAME_MACHINE}-sni-sysv4
+ else
+ echo ns32k-sni-sysv
+ fi
+ exit ;;
+ PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+ # says <Richard.M.Bartel@ccMail.Census.GOV>
+ echo i586-unisys-sysv4
+ exit ;;
+ *:UNIX_System_V:4*:FTX*)
+ # From Gerald Hewes <hewes@openmarket.com>.
+ # How about differentiating between stratus architectures? -djm
+ echo hppa1.1-stratus-sysv4
+ exit ;;
+ *:*:*:FTX*)
+ # From seanf@swdc.stratus.com.
+ echo i860-stratus-sysv4
+ exit ;;
+ i*86:VOS:*:*)
+ # From Paul.Green@stratus.com.
+ echo ${UNAME_MACHINE}-stratus-vos
+ exit ;;
+ *:VOS:*:*)
+ # From Paul.Green@stratus.com.
+ echo hppa1.1-stratus-vos
+ exit ;;
+ mc68*:A/UX:*:*)
+ echo m68k-apple-aux${UNAME_RELEASE}
+ exit ;;
+ news*:NEWS-OS:6*:*)
+ echo mips-sony-newsos6
+ exit ;;
+ R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+ if [ -d /usr/nec ]; then
+ echo mips-nec-sysv${UNAME_RELEASE}
+ else
+ echo mips-unknown-sysv${UNAME_RELEASE}
+ fi
+ exit ;;
+ BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only.
+ echo powerpc-be-beos
+ exit ;;
+ BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only.
+ echo powerpc-apple-beos
+ exit ;;
+ BePC:BeOS:*:*) # BeOS running on Intel PC compatible.
+ echo i586-pc-beos
+ exit ;;
+ SX-4:SUPER-UX:*:*)
+ echo sx4-nec-superux${UNAME_RELEASE}
+ exit ;;
+ SX-5:SUPER-UX:*:*)
+ echo sx5-nec-superux${UNAME_RELEASE}
+ exit ;;
+ SX-6:SUPER-UX:*:*)
+ echo sx6-nec-superux${UNAME_RELEASE}
+ exit ;;
+ Power*:Rhapsody:*:*)
+ echo powerpc-apple-rhapsody${UNAME_RELEASE}
+ exit ;;
+ *:Rhapsody:*:*)
+ echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+ exit ;;
+ *:Darwin:*:*)
+ UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+ case $UNAME_PROCESSOR in
+ *86) UNAME_PROCESSOR=i686 ;;
+ unknown) UNAME_PROCESSOR=powerpc ;;
+ esac
+ echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
+ exit ;;
+ *:procnto*:*:* | *:QNX:[0123456789]*:*)
+ UNAME_PROCESSOR=`uname -p`
+ if test "$UNAME_PROCESSOR" = "x86"; then
+ UNAME_PROCESSOR=i386
+ UNAME_MACHINE=pc
+ fi
+ echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+ exit ;;
+ *:QNX:*:4*)
+ echo i386-pc-qnx
+ exit ;;
+ NSE-?:NONSTOP_KERNEL:*:*)
+ echo nse-tandem-nsk${UNAME_RELEASE}
+ exit ;;
+ NSR-?:NONSTOP_KERNEL:*:*)
+ echo nsr-tandem-nsk${UNAME_RELEASE}
+ exit ;;
+ *:NonStop-UX:*:*)
+ echo mips-compaq-nonstopux
+ exit ;;
+ BS2000:POSIX*:*:*)
+ echo bs2000-siemens-sysv
+ exit ;;
+ DS/*:UNIX_System_V:*:*)
+ echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+ exit ;;
+ *:Plan9:*:*)
+ # "uname -m" is not consistent, so use $cputype instead. 386
+ # is converted to i386 for consistency with other x86
+ # operating systems.
+ if test "$cputype" = "386"; then
+ UNAME_MACHINE=i386
+ else
+ UNAME_MACHINE="$cputype"
+ fi
+ echo ${UNAME_MACHINE}-unknown-plan9
+ exit ;;
+ *:TOPS-10:*:*)
+ echo pdp10-unknown-tops10
+ exit ;;
+ *:TENEX:*:*)
+ echo pdp10-unknown-tenex
+ exit ;;
+ KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+ echo pdp10-dec-tops20
+ exit ;;
+ XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+ echo pdp10-xkl-tops20
+ exit ;;
+ *:TOPS-20:*:*)
+ echo pdp10-unknown-tops20
+ exit ;;
+ *:ITS:*:*)
+ echo pdp10-unknown-its
+ exit ;;
+ SEI:*:*:SEIUX)
+ echo mips-sei-seiux${UNAME_RELEASE}
+ exit ;;
+ *:DragonFly:*:*)
+ echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+ exit ;;
+ *:*VMS:*:*)
+ UNAME_MACHINE=`(uname -p) 2>/dev/null`
+ case "${UNAME_MACHINE}" in
+ A*) echo alpha-dec-vms ; exit ;;
+ I*) echo ia64-dec-vms ; exit ;;
+ V*) echo vax-dec-vms ; exit ;;
+ esac ;;
+ *:XENIX:*:SysV)
+ echo i386-pc-xenix
+ exit ;;
+ i*86:skyos:*:*)
+ echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+ exit ;;
+esac
+
+#echo '(No uname command or uname output not recognized.)' 1>&2
+#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
+
+eval $set_cc_for_build
+cat >$dummy.c <<EOF
+#ifdef _SEQUENT_
+# include <sys/types.h>
+# include <sys/utsname.h>
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+ /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed,
+ I don't know.... */
+ printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include <sys/param.h>
+ printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+ "4"
+#else
+ ""
+#endif
+ ); exit (0);
+#endif
+#endif
+
+#if defined (__arm) && defined (__acorn) && defined (__unix)
+ printf ("arm-acorn-riscix\n"); exit (0);
+#endif
+
+#if defined (hp300) && !defined (hpux)
+ printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+ int version;
+ version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+ if (version < 4)
+ printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+ else
+ printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
+ exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+ printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+ printf ("ns32k-encore-mach\n"); exit (0);
+#else
+ printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+ printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+ printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+ printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+ struct utsname un;
+
+ uname(&un);
+
+ if (strncmp(un.version, "V2", 2) == 0) {
+ printf ("i386-sequent-ptx2\n"); exit (0);
+ }
+ if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+ printf ("i386-sequent-ptx1\n"); exit (0);
+ }
+ printf ("i386-sequent-ptx\n"); exit (0);
+
+#endif
+
+#if defined (vax)
+# if !defined (ultrix)
+# include <sys/param.h>
+# if defined (BSD)
+# if BSD == 43
+ printf ("vax-dec-bsd4.3\n"); exit (0);
+# else
+# if BSD == 199006
+ printf ("vax-dec-bsd4.3reno\n"); exit (0);
+# else
+ printf ("vax-dec-bsd\n"); exit (0);
+# endif
+# endif
+# else
+ printf ("vax-dec-bsd\n"); exit (0);
+# endif
+# else
+ printf ("vax-dec-ultrix\n"); exit (0);
+# endif
+#endif
+
+#if defined (alliant) && defined (i860)
+ printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+ exit (1);
+}
+EOF
+
+$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
+ { echo "$SYSTEM_NAME"; exit; }
+
+# Apollos put the system type in the environment.
+
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
+
+# Convex versions that predate uname can use getsysinfo(1)
+
+if [ -x /usr/convex/getsysinfo ]
+then
+ case `getsysinfo -f cpu_type` in
+ c1*)
+ echo c1-convex-bsd
+ exit ;;
+ c2*)
+ if getsysinfo -f scalar_acc
+ then echo c32-convex-bsd
+ else echo c2-convex-bsd
+ fi
+ exit ;;
+ c34*)
+ echo c34-convex-bsd
+ exit ;;
+ c38*)
+ echo c38-convex-bsd
+ exit ;;
+ c4*)
+ echo c4-convex-bsd
+ exit ;;
+ esac
+fi
+
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+ http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.guess
+and
+ http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/config/config/config.sub
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo = `(hostinfo) 2>/dev/null`
+/bin/universe = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/build-aux/config.rpath b/build-aux/config.rpath
new file mode 100755
index 0000000..c492a93
--- /dev/null
+++ b/build-aux/config.rpath
@@ -0,0 +1,614 @@
+#! /bin/sh
+# Output a system dependent set of variables, describing how to set the
+# run time search path of shared libraries in an executable.
+#
+# Copyright 1996-2006 Free Software Foundation, Inc.
+# Taken from GNU libtool, 2001
+# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+#
+# The first argument passed to this file is the canonical host specification,
+# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or
+# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# The environment variables CC, GCC, LDFLAGS, LD, with_gnu_ld
+# should be set by the caller.
+#
+# The set of defined variables is at the end of this script.
+
+# Known limitations:
+# - On IRIX 6.5 with CC="cc", the run time search patch must not be longer
+# than 256 bytes, otherwise the compiler driver will dump core. The only
+# known workaround is to choose shorter directory names for the build
+# directory and/or the installation directory.
+
+# All known linkers require a `.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+shrext=.so
+
+host="$1"
+host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+
+# Code taken from libtool.m4's _LT_CC_BASENAME.
+
+for cc_temp in $CC""; do
+ case $cc_temp in
+ compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+ distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+ \-*) ;;
+ *) break;;
+ esac
+done
+cc_basename=`echo "$cc_temp" | sed -e 's%^.*/%%'`
+
+# Code taken from libtool.m4's AC_LIBTOOL_PROG_COMPILER_PIC.
+
+wl=
+if test "$GCC" = yes; then
+ wl='-Wl,'
+else
+ case "$host_os" in
+ aix*)
+ wl='-Wl,'
+ ;;
+ darwin*)
+ case $cc_basename in
+ xlc*)
+ wl='-Wl,'
+ ;;
+ esac
+ ;;
+ mingw* | pw32* | os2*)
+ ;;
+ hpux9* | hpux10* | hpux11*)
+ wl='-Wl,'
+ ;;
+ irix5* | irix6* | nonstopux*)
+ wl='-Wl,'
+ ;;
+ newsos6)
+ ;;
+ linux*)
+ case $cc_basename in
+ icc* | ecc*)
+ wl='-Wl,'
+ ;;
+ pgcc | pgf77 | pgf90)
+ wl='-Wl,'
+ ;;
+ ccc*)
+ wl='-Wl,'
+ ;;
+ como)
+ wl='-lopt='
+ ;;
+ *)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*)
+ wl='-Wl,'
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+ osf3* | osf4* | osf5*)
+ wl='-Wl,'
+ ;;
+ sco3.2v5*)
+ ;;
+ solaris*)
+ wl='-Wl,'
+ ;;
+ sunos4*)
+ wl='-Qoption ld '
+ ;;
+ sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+ wl='-Wl,'
+ ;;
+ sysv4*MP*)
+ ;;
+ unicos*)
+ wl='-Wl,'
+ ;;
+ uts4*)
+ ;;
+ esac
+fi
+
+# Code taken from libtool.m4's AC_LIBTOOL_PROG_LD_SHLIBS.
+
+hardcode_libdir_flag_spec=
+hardcode_libdir_separator=
+hardcode_direct=no
+hardcode_minus_L=no
+
+case "$host_os" in
+ cygwin* | mingw* | pw32*)
+ # FIXME: the MSVC++ port hasn't been tested in a loooong time
+ # When not using gcc, we currently assume that we are using
+ # Microsoft Visual C++.
+ if test "$GCC" != yes; then
+ with_gnu_ld=no
+ fi
+ ;;
+ interix*)
+ # we just hope/assume this is gcc and not c89 (= MSVC++)
+ with_gnu_ld=yes
+ ;;
+ openbsd*)
+ with_gnu_ld=no
+ ;;
+esac
+
+ld_shlibs=yes
+if test "$with_gnu_ld" = yes; then
+ # Set some defaults for GNU ld with shared library support. These
+ # are reset later if shared libraries are not supported. Putting them
+ # here allows them to be overridden if necessary.
+ # Unlike libtool, we use -rpath here, not --rpath, since the documented
+ # option of GNU ld is called -rpath, not --rpath.
+ hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ case "$host_os" in
+ aix3* | aix4* | aix5*)
+ # On AIX/PPC, the GNU linker is very broken
+ if test "$host_cpu" != ia64; then
+ ld_shlibs=no
+ fi
+ ;;
+ amigaos*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+ # that the semantics of dynamic libraries on AmigaOS, at least up
+ # to version 4, is to share data among multiple programs linked
+ # with the same dynamic library. Since this doesn't match the
+ # behavior of shared libraries on other platforms, we cannot use
+ # them.
+ ld_shlibs=no
+ ;;
+ beos*)
+ if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+ :
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ cygwin* | mingw* | pw32*)
+ # hardcode_libdir_flag_spec is actually meaningless, as there is
+ # no search path for DLLs.
+ hardcode_libdir_flag_spec='-L$libdir'
+ if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
+ :
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ interix3*)
+ hardcode_direct=no
+ hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+ ;;
+ linux*)
+ if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+ :
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ netbsd*)
+ ;;
+ solaris*)
+ if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
+ ld_shlibs=no
+ elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+ :
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+ case `$LD -v 2>&1` in
+ *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+ ld_shlibs=no
+ ;;
+ *)
+ if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+ hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-rpath,$libdir`'
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ esac
+ ;;
+ sunos4*)
+ hardcode_direct=yes
+ ;;
+ *)
+ if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
+ :
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ esac
+ if test "$ld_shlibs" = no; then
+ hardcode_libdir_flag_spec=
+ fi
+else
+ case "$host_os" in
+ aix3*)
+ # Note: this linker hardcodes the directories in LIBPATH if there
+ # are no directories specified by -L.
+ hardcode_minus_L=yes
+ if test "$GCC" = yes; then
+ # Neither direct hardcoding nor static linking is supported with a
+ # broken collect2.
+ hardcode_direct=unsupported
+ fi
+ ;;
+ aix4* | aix5*)
+ if test "$host_cpu" = ia64; then
+ # On IA64, the linker does run time linking by default, so we don't
+ # have to do anything special.
+ aix_use_runtimelinking=no
+ else
+ aix_use_runtimelinking=no
+ # Test if we are trying to use run time linking or normal
+ # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+ # need to do runtime linking.
+ case $host_os in aix4.[23]|aix4.[23].*|aix5*)
+ for ld_flag in $LDFLAGS; do
+ if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+ aix_use_runtimelinking=yes
+ break
+ fi
+ done
+ ;;
+ esac
+ fi
+ hardcode_direct=yes
+ hardcode_libdir_separator=':'
+ if test "$GCC" = yes; then
+ case $host_os in aix4.[012]|aix4.[012].*)
+ collect2name=`${CC} -print-prog-name=collect2`
+ if test -f "$collect2name" && \
+ strings "$collect2name" | grep resolve_lib_name >/dev/null
+ then
+ # We have reworked collect2
+ hardcode_direct=yes
+ else
+ # We have old collect2
+ hardcode_direct=unsupported
+ hardcode_minus_L=yes
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_libdir_separator=
+ fi
+ ;;
+ esac
+ fi
+ # Begin _LT_AC_SYS_LIBPATH_AIX.
+ echo 'int main () { return 0; }' > conftest.c
+ ${CC} ${LDFLAGS} conftest.c -o conftest
+ aix_libpath=`dump -H conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
+}'`
+ if test -z "$aix_libpath"; then
+ aix_libpath=`dump -HX64 conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
+}'`
+ fi
+ if test -z "$aix_libpath"; then
+ aix_libpath="/usr/lib:/lib"
+ fi
+ rm -f conftest.c conftest
+ # End _LT_AC_SYS_LIBPATH_AIX.
+ if test "$aix_use_runtimelinking" = yes; then
+ hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+ else
+ if test "$host_cpu" = ia64; then
+ hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+ else
+ hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+ fi
+ fi
+ ;;
+ amigaos*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ # see comment about different semantics on the GNU ld section
+ ld_shlibs=no
+ ;;
+ bsdi[45]*)
+ ;;
+ cygwin* | mingw* | pw32*)
+ # When not using gcc, we currently assume that we are using
+ # Microsoft Visual C++.
+ # hardcode_libdir_flag_spec is actually meaningless, as there is
+ # no search path for DLLs.
+ hardcode_libdir_flag_spec=' '
+ libext=lib
+ ;;
+ darwin* | rhapsody*)
+ hardcode_direct=no
+ if test "$GCC" = yes ; then
+ :
+ else
+ case $cc_basename in
+ xlc*)
+ ;;
+ *)
+ ld_shlibs=no
+ ;;
+ esac
+ fi
+ ;;
+ dgux*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ ;;
+ freebsd1*)
+ ld_shlibs=no
+ ;;
+ freebsd2.2*)
+ hardcode_libdir_flag_spec='-R$libdir'
+ hardcode_direct=yes
+ ;;
+ freebsd2*)
+ hardcode_direct=yes
+ hardcode_minus_L=yes
+ ;;
+ freebsd* | kfreebsd*-gnu | dragonfly*)
+ hardcode_libdir_flag_spec='-R$libdir'
+ hardcode_direct=yes
+ ;;
+ hpux9*)
+ hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+ hardcode_libdir_separator=:
+ hardcode_direct=yes
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ hardcode_minus_L=yes
+ ;;
+ hpux10*)
+ if test "$with_gnu_ld" = no; then
+ hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+ hardcode_libdir_separator=:
+ hardcode_direct=yes
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ hardcode_minus_L=yes
+ fi
+ ;;
+ hpux11*)
+ if test "$with_gnu_ld" = no; then
+ hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+ hardcode_libdir_separator=:
+ case $host_cpu in
+ hppa*64*|ia64*)
+ hardcode_direct=no
+ ;;
+ *)
+ hardcode_direct=yes
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ hardcode_minus_L=yes
+ ;;
+ esac
+ fi
+ ;;
+ irix5* | irix6* | nonstopux*)
+ hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ hardcode_libdir_separator=:
+ ;;
+ netbsd*)
+ hardcode_libdir_flag_spec='-R$libdir'
+ hardcode_direct=yes
+ ;;
+ newsos6)
+ hardcode_direct=yes
+ hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ hardcode_libdir_separator=:
+ ;;
+ openbsd*)
+ hardcode_direct=yes
+ if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+ hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+ else
+ case "$host_os" in
+ openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+ hardcode_libdir_flag_spec='-R$libdir'
+ ;;
+ *)
+ hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+ ;;
+ esac
+ fi
+ ;;
+ os2*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ ;;
+ osf3*)
+ hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ hardcode_libdir_separator=:
+ ;;
+ osf4* | osf5*)
+ if test "$GCC" = yes; then
+ hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ else
+ # Both cc and cxx compiler support -rpath directly
+ hardcode_libdir_flag_spec='-rpath $libdir'
+ fi
+ hardcode_libdir_separator=:
+ ;;
+ solaris*)
+ hardcode_libdir_flag_spec='-R$libdir'
+ ;;
+ sunos4*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_direct=yes
+ hardcode_minus_L=yes
+ ;;
+ sysv4)
+ case $host_vendor in
+ sni)
+ hardcode_direct=yes # is this really true???
+ ;;
+ siemens)
+ hardcode_direct=no
+ ;;
+ motorola)
+ hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+ ;;
+ esac
+ ;;
+ sysv4.3*)
+ ;;
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ ld_shlibs=yes
+ fi
+ ;;
+ sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7*)
+ ;;
+ sysv5* | sco3.2v5* | sco5v6*)
+ hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-R,$libdir`'
+ hardcode_libdir_separator=':'
+ ;;
+ uts4*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ ;;
+ *)
+ ld_shlibs=no
+ ;;
+ esac
+fi
+
+# Check dynamic linker characteristics
+# Code taken from libtool.m4's AC_LIBTOOL_SYS_DYNAMIC_LINKER.
+libname_spec='lib$name'
+case "$host_os" in
+ aix3*)
+ ;;
+ aix4* | aix5*)
+ ;;
+ amigaos*)
+ ;;
+ beos*)
+ ;;
+ bsdi[45]*)
+ ;;
+ cygwin* | mingw* | pw32*)
+ shrext=.dll
+ ;;
+ darwin* | rhapsody*)
+ shrext=.dylib
+ ;;
+ dgux*)
+ ;;
+ freebsd1*)
+ ;;
+ kfreebsd*-gnu)
+ ;;
+ freebsd* | dragonfly*)
+ ;;
+ gnu*)
+ ;;
+ hpux9* | hpux10* | hpux11*)
+ case $host_cpu in
+ ia64*)
+ shrext=.so
+ ;;
+ hppa*64*)
+ shrext=.sl
+ ;;
+ *)
+ shrext=.sl
+ ;;
+ esac
+ ;;
+ interix3*)
+ ;;
+ irix5* | irix6* | nonstopux*)
+ case "$host_os" in
+ irix5* | nonstopux*)
+ libsuff= shlibsuff=
+ ;;
+ *)
+ case $LD in
+ *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= ;;
+ *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 ;;
+ *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 ;;
+ *) libsuff= shlibsuff= ;;
+ esac
+ ;;
+ esac
+ ;;
+ linux*oldld* | linux*aout* | linux*coff*)
+ ;;
+ linux*)
+ ;;
+ knetbsd*-gnu)
+ ;;
+ netbsd*)
+ ;;
+ newsos6)
+ ;;
+ nto-qnx*)
+ ;;
+ openbsd*)
+ ;;
+ os2*)
+ libname_spec='$name'
+ shrext=.dll
+ ;;
+ osf3* | osf4* | osf5*)
+ ;;
+ solaris*)
+ ;;
+ sunos4*)
+ ;;
+ sysv4 | sysv4.3*)
+ ;;
+ sysv4*MP*)
+ ;;
+ sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+ ;;
+ uts4*)
+ ;;
+esac
+
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+escaped_wl=`echo "X$wl" | sed -e 's/^X//' -e "$sed_quote_subst"`
+shlibext=`echo "$shrext" | sed -e 's,^\.,,'`
+escaped_hardcode_libdir_flag_spec=`echo "X$hardcode_libdir_flag_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
+
+LC_ALL=C sed -e 's/^\([a-zA-Z0-9_]*\)=/acl_cv_\1=/' <<EOF
+
+# How to pass a linker flag through the compiler.
+wl="$escaped_wl"
+
+# Static library suffix (normally "a").
+libext="$libext"
+
+# Shared library suffix (normally "so").
+shlibext="$shlibext"
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec="$escaped_hardcode_libdir_flag_spec"
+
+# Whether we need a single -rpath flag with a separated argument.
+hardcode_libdir_separator="$hardcode_libdir_separator"
+
+# Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
+# resulting binary.
+hardcode_direct="$hardcode_direct"
+
+# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
+# resulting binary.
+hardcode_minus_L="$hardcode_minus_L"
+
+EOF
diff --git a/build-aux/config.sub b/build-aux/config.sub
new file mode 100755
index 0000000..1c366df
--- /dev/null
+++ b/build-aux/config.sub
@@ -0,0 +1,1579 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+# 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+timestamp='2005-07-08'
+
+# This file is (in principle) common to ALL GNU software.
+# The presence of a machine in this file suggests that SOME GNU software
+# can handle that machine. It does not imply ALL GNU software can.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+# 02110-1301, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+
+# Please send patches to <config-patches@gnu.org>. Submit a context
+# diff and a properly formatted ChangeLog entry.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support. The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+ $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+ -h, --help print this help, then exit
+ -t, --time-stamp print date of last modification, then exit
+ -v, --version print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+ case $1 in
+ --time-stamp | --time* | -t )
+ echo "$timestamp" ; exit ;;
+ --version | -v )
+ echo "$version" ; exit ;;
+ --help | --h* | -h )
+ echo "$usage"; exit ;;
+ -- ) # Stop option processing
+ shift; break ;;
+ - ) # Use stdin as input.
+ break ;;
+ -* )
+ echo "$me: invalid option $1$help"
+ exit 1 ;;
+
+ *local*)
+ # First pass through any local machine types.
+ echo $1
+ exit ;;
+
+ * )
+ break ;;
+ esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+ exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+ exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+ nto-qnx* | linux-gnu* | linux-dietlibc | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | \
+ kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | storm-chaos* | os2-emx* | rtmk-nova*)
+ os=-$maybe_os
+ basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+ ;;
+ *)
+ basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+ if [ $basic_machine != $1 ]
+ then os=`echo $1 | sed 's/.*-/-/'`
+ else os=; fi
+ ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work. We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+ -sun*os*)
+ # Prevent following clause from handling this invalid input.
+ ;;
+ -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+ -apple | -axis | -knuth | -cray)
+ os=
+ basic_machine=$1
+ ;;
+ -sim | -cisco | -oki | -wec | -winbond)
+ os=
+ basic_machine=$1
+ ;;
+ -scout)
+ ;;
+ -wrs)
+ os=-vxworks
+ basic_machine=$1
+ ;;
+ -chorusos*)
+ os=-chorusos
+ basic_machine=$1
+ ;;
+ -chorusrdb)
+ os=-chorusrdb
+ basic_machine=$1
+ ;;
+ -hiux*)
+ os=-hiuxwe2
+ ;;
+ -sco5)
+ os=-sco3.2v5
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco4)
+ os=-sco3.2v4
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco3.2.[4-9]*)
+ os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco3.2v[4-9]*)
+ # Don't forget version if it is 3.2v4 or newer.
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco*)
+ os=-sco3.2v2
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -udk*)
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -isc)
+ os=-isc2.2
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -clix*)
+ basic_machine=clipper-intergraph
+ ;;
+ -isc*)
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -lynx*)
+ os=-lynxos
+ ;;
+ -ptx*)
+ basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+ ;;
+ -windowsnt*)
+ os=`echo $os | sed -e 's/windowsnt/winnt/'`
+ ;;
+ -psos*)
+ os=-psos
+ ;;
+ -mint | -mint[0-9]*)
+ basic_machine=m68k-atari
+ os=-mint
+ ;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+ # Recognize the basic CPU types without company name.
+ # Some are omitted here because they have special meanings below.
+ 1750a | 580 \
+ | a29k \
+ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+ | am33_2.0 \
+ | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr \
+ | bfin \
+ | c4x | clipper \
+ | d10v | d30v | dlx | dsp16xx \
+ | fr30 | frv \
+ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+ | i370 | i860 | i960 | ia64 \
+ | ip2k | iq2000 \
+ | m32r | m32rle | m68000 | m68k | m88k | maxq | mcore \
+ | mips | mipsbe | mipseb | mipsel | mipsle \
+ | mips16 \
+ | mips64 | mips64el \
+ | mips64vr | mips64vrel \
+ | mips64orion | mips64orionel \
+ | mips64vr4100 | mips64vr4100el \
+ | mips64vr4300 | mips64vr4300el \
+ | mips64vr5000 | mips64vr5000el \
+ | mips64vr5900 | mips64vr5900el \
+ | mipsisa32 | mipsisa32el \
+ | mipsisa32r2 | mipsisa32r2el \
+ | mipsisa64 | mipsisa64el \
+ | mipsisa64r2 | mipsisa64r2el \
+ | mipsisa64sb1 | mipsisa64sb1el \
+ | mipsisa64sr71k | mipsisa64sr71kel \
+ | mipstx39 | mipstx39el \
+ | mn10200 | mn10300 \
+ | ms1 \
+ | msp430 \
+ | ns16k | ns32k \
+ | or32 \
+ | pdp10 | pdp11 | pj | pjl \
+ | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+ | pyramid \
+ | sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | shbe | shle | sh[1234]le | sh3ele \
+ | sh64 | sh64le \
+ | sparc | sparc64 | sparc64b | sparc86x | sparclet | sparclite \
+ | sparcv8 | sparcv9 | sparcv9b \
+ | strongarm \
+ | tahoe | thumb | tic4x | tic80 | tron \
+ | v850 | v850e \
+ | we32k \
+ | x86 | xscale | xscalee[bl] | xstormy16 | xtensa \
+ | z8k)
+ basic_machine=$basic_machine-unknown
+ ;;
+ m32c)
+ basic_machine=$basic_machine-unknown
+ ;;
+ m6811 | m68hc11 | m6812 | m68hc12)
+ # Motorola 68HC11/12.
+ basic_machine=$basic_machine-unknown
+ os=-none
+ ;;
+ m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+ ;;
+
+ # We use `pc' rather than `unknown'
+ # because (1) that's what they normally are, and
+ # (2) the word "unknown" tends to confuse beginning users.
+ i*86 | x86_64)
+ basic_machine=$basic_machine-pc
+ ;;
+ # Object if more than one company name word.
+ *-*-*)
+ echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+ exit 1
+ ;;
+ # Recognize the basic CPU types with company name.
+ 580-* \
+ | a29k-* \
+ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \
+ | avr-* \
+ | bfin-* | bs2000-* \
+ | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
+ | clipper-* | craynv-* | cydra-* \
+ | d10v-* | d30v-* | dlx-* \
+ | elxsi-* \
+ | f30[01]-* | f700-* | fr30-* | frv-* | fx80-* \
+ | h8300-* | h8500-* \
+ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+ | i*86-* | i860-* | i960-* | ia64-* \
+ | ip2k-* | iq2000-* \
+ | m32r-* | m32rle-* \
+ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+ | m88110-* | m88k-* | maxq-* | mcore-* \
+ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+ | mips16-* \
+ | mips64-* | mips64el-* \
+ | mips64vr-* | mips64vrel-* \
+ | mips64orion-* | mips64orionel-* \
+ | mips64vr4100-* | mips64vr4100el-* \
+ | mips64vr4300-* | mips64vr4300el-* \
+ | mips64vr5000-* | mips64vr5000el-* \
+ | mips64vr5900-* | mips64vr5900el-* \
+ | mipsisa32-* | mipsisa32el-* \
+ | mipsisa32r2-* | mipsisa32r2el-* \
+ | mipsisa64-* | mipsisa64el-* \
+ | mipsisa64r2-* | mipsisa64r2el-* \
+ | mipsisa64sb1-* | mipsisa64sb1el-* \
+ | mipsisa64sr71k-* | mipsisa64sr71kel-* \
+ | mipstx39-* | mipstx39el-* \
+ | mmix-* \
+ | ms1-* \
+ | msp430-* \
+ | none-* | np1-* | ns16k-* | ns32k-* \
+ | orion-* \
+ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+ | pyramid-* \
+ | romp-* | rs6000-* \
+ | sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | shbe-* \
+ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+ | sparc-* | sparc64-* | sparc64b-* | sparc86x-* | sparclet-* \
+ | sparclite-* \
+ | sparcv8-* | sparcv9-* | sparcv9b-* | strongarm-* | sv1-* | sx?-* \
+ | tahoe-* | thumb-* \
+ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+ | tron-* \
+ | v850-* | v850e-* | vax-* \
+ | we32k-* \
+ | x86-* | x86_64-* | xps100-* | xscale-* | xscalee[bl]-* \
+ | xstormy16-* | xtensa-* \
+ | ymp-* \
+ | z8k-*)
+ ;;
+ m32c-*)
+ ;;
+ # Recognize the various machine names and aliases which stand
+ # for a CPU type and a company and sometimes even an OS.
+ 386bsd)
+ basic_machine=i386-unknown
+ os=-bsd
+ ;;
+ 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+ basic_machine=m68000-att
+ ;;
+ 3b*)
+ basic_machine=we32k-att
+ ;;
+ a29khif)
+ basic_machine=a29k-amd
+ os=-udi
+ ;;
+ abacus)
+ basic_machine=abacus-unknown
+ ;;
+ adobe68k)
+ basic_machine=m68010-adobe
+ os=-scout
+ ;;
+ alliant | fx80)
+ basic_machine=fx80-alliant
+ ;;
+ altos | altos3068)
+ basic_machine=m68k-altos
+ ;;
+ am29k)
+ basic_machine=a29k-none
+ os=-bsd
+ ;;
+ amd64)
+ basic_machine=x86_64-pc
+ ;;
+ amd64-*)
+ basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ amdahl)
+ basic_machine=580-amdahl
+ os=-sysv
+ ;;
+ amiga | amiga-*)
+ basic_machine=m68k-unknown
+ ;;
+ amigaos | amigados)
+ basic_machine=m68k-unknown
+ os=-amigaos
+ ;;
+ amigaunix | amix)
+ basic_machine=m68k-unknown
+ os=-sysv4
+ ;;
+ apollo68)
+ basic_machine=m68k-apollo
+ os=-sysv
+ ;;
+ apollo68bsd)
+ basic_machine=m68k-apollo
+ os=-bsd
+ ;;
+ aux)
+ basic_machine=m68k-apple
+ os=-aux
+ ;;
+ balance)
+ basic_machine=ns32k-sequent
+ os=-dynix
+ ;;
+ c90)
+ basic_machine=c90-cray
+ os=-unicos
+ ;;
+ convex-c1)
+ basic_machine=c1-convex
+ os=-bsd
+ ;;
+ convex-c2)
+ basic_machine=c2-convex
+ os=-bsd
+ ;;
+ convex-c32)
+ basic_machine=c32-convex
+ os=-bsd
+ ;;
+ convex-c34)
+ basic_machine=c34-convex
+ os=-bsd
+ ;;
+ convex-c38)
+ basic_machine=c38-convex
+ os=-bsd
+ ;;
+ cray | j90)
+ basic_machine=j90-cray
+ os=-unicos
+ ;;
+ craynv)
+ basic_machine=craynv-cray
+ os=-unicosmp
+ ;;
+ cr16c)
+ basic_machine=cr16c-unknown
+ os=-elf
+ ;;
+ crds | unos)
+ basic_machine=m68k-crds
+ ;;
+ crisv32 | crisv32-* | etraxfs*)
+ basic_machine=crisv32-axis
+ ;;
+ cris | cris-* | etrax*)
+ basic_machine=cris-axis
+ ;;
+ crx)
+ basic_machine=crx-unknown
+ os=-elf
+ ;;
+ da30 | da30-*)
+ basic_machine=m68k-da30
+ ;;
+ decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+ basic_machine=mips-dec
+ ;;
+ decsystem10* | dec10*)
+ basic_machine=pdp10-dec
+ os=-tops10
+ ;;
+ decsystem20* | dec20*)
+ basic_machine=pdp10-dec
+ os=-tops20
+ ;;
+ delta | 3300 | motorola-3300 | motorola-delta \
+ | 3300-motorola | delta-motorola)
+ basic_machine=m68k-motorola
+ ;;
+ delta88)
+ basic_machine=m88k-motorola
+ os=-sysv3
+ ;;
+ djgpp)
+ basic_machine=i586-pc
+ os=-msdosdjgpp
+ ;;
+ dpx20 | dpx20-*)
+ basic_machine=rs6000-bull
+ os=-bosx
+ ;;
+ dpx2* | dpx2*-bull)
+ basic_machine=m68k-bull
+ os=-sysv3
+ ;;
+ ebmon29k)
+ basic_machine=a29k-amd
+ os=-ebmon
+ ;;
+ elxsi)
+ basic_machine=elxsi-elxsi
+ os=-bsd
+ ;;
+ encore | umax | mmax)
+ basic_machine=ns32k-encore
+ ;;
+ es1800 | OSE68k | ose68k | ose | OSE)
+ basic_machine=m68k-ericsson
+ os=-ose
+ ;;
+ fx2800)
+ basic_machine=i860-alliant
+ ;;
+ genix)
+ basic_machine=ns32k-ns
+ ;;
+ gmicro)
+ basic_machine=tron-gmicro
+ os=-sysv
+ ;;
+ go32)
+ basic_machine=i386-pc
+ os=-go32
+ ;;
+ h3050r* | hiux*)
+ basic_machine=hppa1.1-hitachi
+ os=-hiuxwe2
+ ;;
+ h8300hms)
+ basic_machine=h8300-hitachi
+ os=-hms
+ ;;
+ h8300xray)
+ basic_machine=h8300-hitachi
+ os=-xray
+ ;;
+ h8500hms)
+ basic_machine=h8500-hitachi
+ os=-hms
+ ;;
+ harris)
+ basic_machine=m88k-harris
+ os=-sysv3
+ ;;
+ hp300-*)
+ basic_machine=m68k-hp
+ ;;
+ hp300bsd)
+ basic_machine=m68k-hp
+ os=-bsd
+ ;;
+ hp300hpux)
+ basic_machine=m68k-hp
+ os=-hpux
+ ;;
+ hp3k9[0-9][0-9] | hp9[0-9][0-9])
+ basic_machine=hppa1.0-hp
+ ;;
+ hp9k2[0-9][0-9] | hp9k31[0-9])
+ basic_machine=m68000-hp
+ ;;
+ hp9k3[2-9][0-9])
+ basic_machine=m68k-hp
+ ;;
+ hp9k6[0-9][0-9] | hp6[0-9][0-9])
+ basic_machine=hppa1.0-hp
+ ;;
+ hp9k7[0-79][0-9] | hp7[0-79][0-9])
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k78[0-9] | hp78[0-9])
+ # FIXME: really hppa2.0-hp
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+ # FIXME: really hppa2.0-hp
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k8[0-9][13679] | hp8[0-9][13679])
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k8[0-9][0-9] | hp8[0-9][0-9])
+ basic_machine=hppa1.0-hp
+ ;;
+ hppa-next)
+ os=-nextstep3
+ ;;
+ hppaosf)
+ basic_machine=hppa1.1-hp
+ os=-osf
+ ;;
+ hppro)
+ basic_machine=hppa1.1-hp
+ os=-proelf
+ ;;
+ i370-ibm* | ibm*)
+ basic_machine=i370-ibm
+ ;;
+# I'm not sure what "Sysv32" means. Should this be sysv3.2?
+ i*86v32)
+ basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+ os=-sysv32
+ ;;
+ i*86v4*)
+ basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+ os=-sysv4
+ ;;
+ i*86v)
+ basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+ os=-sysv
+ ;;
+ i*86sol2)
+ basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+ os=-solaris2
+ ;;
+ i386mach)
+ basic_machine=i386-mach
+ os=-mach
+ ;;
+ i386-vsta | vsta)
+ basic_machine=i386-unknown
+ os=-vsta
+ ;;
+ iris | iris4d)
+ basic_machine=mips-sgi
+ case $os in
+ -irix*)
+ ;;
+ *)
+ os=-irix4
+ ;;
+ esac
+ ;;
+ isi68 | isi)
+ basic_machine=m68k-isi
+ os=-sysv
+ ;;
+ m88k-omron*)
+ basic_machine=m88k-omron
+ ;;
+ magnum | m3230)
+ basic_machine=mips-mips
+ os=-sysv
+ ;;
+ merlin)
+ basic_machine=ns32k-utek
+ os=-sysv
+ ;;
+ mingw32)
+ basic_machine=i386-pc
+ os=-mingw32
+ ;;
+ miniframe)
+ basic_machine=m68000-convergent
+ ;;
+ *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+ basic_machine=m68k-atari
+ os=-mint
+ ;;
+ mips3*-*)
+ basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+ ;;
+ mips3*)
+ basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+ ;;
+ monitor)
+ basic_machine=m68k-rom68k
+ os=-coff
+ ;;
+ morphos)
+ basic_machine=powerpc-unknown
+ os=-morphos
+ ;;
+ msdos)
+ basic_machine=i386-pc
+ os=-msdos
+ ;;
+ mvs)
+ basic_machine=i370-ibm
+ os=-mvs
+ ;;
+ ncr3000)
+ basic_machine=i486-ncr
+ os=-sysv4
+ ;;
+ netbsd386)
+ basic_machine=i386-unknown
+ os=-netbsd
+ ;;
+ netwinder)
+ basic_machine=armv4l-rebel
+ os=-linux
+ ;;
+ news | news700 | news800 | news900)
+ basic_machine=m68k-sony
+ os=-newsos
+ ;;
+ news1000)
+ basic_machine=m68030-sony
+ os=-newsos
+ ;;
+ news-3600 | risc-news)
+ basic_machine=mips-sony
+ os=-newsos
+ ;;
+ necv70)
+ basic_machine=v70-nec
+ os=-sysv
+ ;;
+ next | m*-next )
+ basic_machine=m68k-next
+ case $os in
+ -nextstep* )
+ ;;
+ -ns2*)
+ os=-nextstep2
+ ;;
+ *)
+ os=-nextstep3
+ ;;
+ esac
+ ;;
+ nh3000)
+ basic_machine=m68k-harris
+ os=-cxux
+ ;;
+ nh[45]000)
+ basic_machine=m88k-harris
+ os=-cxux
+ ;;
+ nindy960)
+ basic_machine=i960-intel
+ os=-nindy
+ ;;
+ mon960)
+ basic_machine=i960-intel
+ os=-mon960
+ ;;
+ nonstopux)
+ basic_machine=mips-compaq
+ os=-nonstopux
+ ;;
+ np1)
+ basic_machine=np1-gould
+ ;;
+ nsr-tandem)
+ basic_machine=nsr-tandem
+ ;;
+ op50n-* | op60c-*)
+ basic_machine=hppa1.1-oki
+ os=-proelf
+ ;;
+ openrisc | openrisc-*)
+ basic_machine=or32-unknown
+ ;;
+ os400)
+ basic_machine=powerpc-ibm
+ os=-os400
+ ;;
+ OSE68000 | ose68000)
+ basic_machine=m68000-ericsson
+ os=-ose
+ ;;
+ os68k)
+ basic_machine=m68k-none
+ os=-os68k
+ ;;
+ pa-hitachi)
+ basic_machine=hppa1.1-hitachi
+ os=-hiuxwe2
+ ;;
+ paragon)
+ basic_machine=i860-intel
+ os=-osf
+ ;;
+ pbd)
+ basic_machine=sparc-tti
+ ;;
+ pbb)
+ basic_machine=m68k-tti
+ ;;
+ pc532 | pc532-*)
+ basic_machine=ns32k-pc532
+ ;;
+ pentium | p5 | k5 | k6 | nexgen | viac3)
+ basic_machine=i586-pc
+ ;;
+ pentiumpro | p6 | 6x86 | athlon | athlon_*)
+ basic_machine=i686-pc
+ ;;
+ pentiumii | pentium2 | pentiumiii | pentium3)
+ basic_machine=i686-pc
+ ;;
+ pentium4)
+ basic_machine=i786-pc
+ ;;
+ pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+ basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ pentiumpro-* | p6-* | 6x86-* | athlon-*)
+ basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+ basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ pentium4-*)
+ basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ pn)
+ basic_machine=pn-gould
+ ;;
+ power) basic_machine=power-ibm
+ ;;
+ ppc) basic_machine=powerpc-unknown
+ ;;
+ ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ ppcle | powerpclittle | ppc-le | powerpc-little)
+ basic_machine=powerpcle-unknown
+ ;;
+ ppcle-* | powerpclittle-*)
+ basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ ppc64) basic_machine=powerpc64-unknown
+ ;;
+ ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+ basic_machine=powerpc64le-unknown
+ ;;
+ ppc64le-* | powerpc64little-*)
+ basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+ ;;
+ ps2)
+ basic_machine=i386-ibm
+ ;;
+ pw32)
+ basic_machine=i586-unknown
+ os=-pw32
+ ;;
+ rom68k)
+ basic_machine=m68k-rom68k
+ os=-coff
+ ;;
+ rm[46]00)
+ basic_machine=mips-siemens
+ ;;
+ rtpc | rtpc-*)
+ basic_machine=romp-ibm
+ ;;
+ s390 | s390-*)
+ basic_machine=s390-ibm
+ ;;
+ s390x | s390x-*)
+ basic_machine=s390x-ibm
+ ;;
+ sa29200)
+ basic_machine=a29k-amd
+ os=-udi
+ ;;
+ sb1)
+ basic_machine=mipsisa64sb1-unknown
+ ;;
+ sb1el)
+ basic_machine=mipsisa64sb1el-unknown
+ ;;
+ sei)
+ basic_machine=mips-sei
+ os=-seiux
+ ;;
+ sequent)
+ basic_machine=i386-sequent
+ ;;
+ sh)
+ basic_machine=sh-hitachi
+ os=-hms
+ ;;
+ sh64)
+ basic_machine=sh64-unknown
+ ;;
+ sparclite-wrs | simso-wrs)
+ basic_machine=sparclite-wrs
+ os=-vxworks
+ ;;
+ sps7)
+ basic_machine=m68k-bull
+ os=-sysv2
+ ;;
+ spur)
+ basic_machine=spur-unknown
+ ;;
+ st2000)
+ basic_machine=m68k-tandem
+ ;;
+ stratus)
+ basic_machine=i860-stratus
+ os=-sysv4
+ ;;
+ sun2)
+ basic_machine=m68000-sun
+ ;;
+ sun2os3)
+ basic_machine=m68000-sun
+ os=-sunos3
+ ;;
+ sun2os4)
+ basic_machine=m68000-sun
+ os=-sunos4
+ ;;
+ sun3os3)
+ basic_machine=m68k-sun
+ os=-sunos3
+ ;;
+ sun3os4)
+ basic_machine=m68k-sun
+ os=-sunos4
+ ;;
+ sun4os3)
+ basic_machine=sparc-sun
+ os=-sunos3
+ ;;
+ sun4os4)
+ basic_machine=sparc-sun
+ os=-sunos4
+ ;;
+ sun4sol2)
+ basic_machine=sparc-sun
+ os=-solaris2
+ ;;
+ sun3 | sun3-*)
+ basic_machine=m68k-sun
+ ;;
+ sun4)
+ basic_machine=sparc-sun
+ ;;
+ sun386 | sun386i | roadrunner)
+ basic_machine=i386-sun
+ ;;
+ sv1)
+ basic_machine=sv1-cray
+ os=-unicos
+ ;;
+ symmetry)
+ basic_machine=i386-sequent
+ os=-dynix
+ ;;
+ t3e)
+ basic_machine=alphaev5-cray
+ os=-unicos
+ ;;
+ t90)
+ basic_machine=t90-cray
+ os=-unicos
+ ;;
+ tic54x | c54x*)
+ basic_machine=tic54x-unknown
+ os=-coff
+ ;;
+ tic55x | c55x*)
+ basic_machine=tic55x-unknown
+ os=-coff
+ ;;
+ tic6x | c6x*)
+ basic_machine=tic6x-unknown
+ os=-coff
+ ;;
+ tx39)
+ basic_machine=mipstx39-unknown
+ ;;
+ tx39el)
+ basic_machine=mipstx39el-unknown
+ ;;
+ toad1)
+ basic_machine=pdp10-xkl
+ os=-tops20
+ ;;
+ tower | tower-32)
+ basic_machine=m68k-ncr
+ ;;
+ tpf)
+ basic_machine=s390x-ibm
+ os=-tpf
+ ;;
+ udi29k)
+ basic_machine=a29k-amd
+ os=-udi
+ ;;
+ ultra3)
+ basic_machine=a29k-nyu
+ os=-sym1
+ ;;
+ v810 | necv810)
+ basic_machine=v810-nec
+ os=-none
+ ;;
+ vaxv)
+ basic_machine=vax-dec
+ os=-sysv
+ ;;
+ vms)
+ basic_machine=vax-dec
+ os=-vms
+ ;;
+ vpp*|vx|vx-*)
+ basic_machine=f301-fujitsu
+ ;;
+ vxworks960)
+ basic_machine=i960-wrs
+ os=-vxworks
+ ;;
+ vxworks68)
+ basic_machine=m68k-wrs
+ os=-vxworks
+ ;;
+ vxworks29k)
+ basic_machine=a29k-wrs
+ os=-vxworks
+ ;;
+ w65*)
+ basic_machine=w65-wdc
+ os=-none
+ ;;
+ w89k-*)
+ basic_machine=hppa1.1-winbond
+ os=-proelf
+ ;;
+ xbox)
+ basic_machine=i686-pc
+ os=-mingw32
+ ;;
+ xps | xps100)
+ basic_machine=xps100-honeywell
+ ;;
+ ymp)
+ basic_machine=ymp-cray
+ os=-unicos
+ ;;
+ z8k-*-coff)
+ basic_machine=z8k-unknown
+ os=-sim
+ ;;
+ none)
+ basic_machine=none-none
+ os=-none
+ ;;
+
+# Here we handle the default manufacturer of certain CPU types. It is in
+# some cases the only manufacturer, in others, it is the most popular.
+ w89k)
+ basic_machine=hppa1.1-winbond
+ ;;
+ op50n)
+ basic_machine=hppa1.1-oki
+ ;;
+ op60c)
+ basic_machine=hppa1.1-oki
+ ;;
+ romp)
+ basic_machine=romp-ibm
+ ;;
+ mmix)
+ basic_machine=mmix-knuth
+ ;;
+ rs6000)
+ basic_machine=rs6000-ibm
+ ;;
+ vax)
+ basic_machine=vax-dec
+ ;;
+ pdp10)
+ # there are many clones, so DEC is not a safe bet
+ basic_machine=pdp10-unknown
+ ;;
+ pdp11)
+ basic_machine=pdp11-dec
+ ;;
+ we32k)
+ basic_machine=we32k-att
+ ;;
+ sh[1234] | sh[24]a | sh[34]eb | sh[1234]le | sh[23]ele)
+ basic_machine=sh-unknown
+ ;;
+ sparc | sparcv8 | sparcv9 | sparcv9b)
+ basic_machine=sparc-sun
+ ;;
+ cydra)
+ basic_machine=cydra-cydrome
+ ;;
+ orion)
+ basic_machine=orion-highlevel
+ ;;
+ orion105)
+ basic_machine=clipper-highlevel
+ ;;
+ mac | mpw | mac-mpw)
+ basic_machine=m68k-apple
+ ;;
+ pmac | pmac-mpw)
+ basic_machine=powerpc-apple
+ ;;
+ *-unknown)
+ # Make sure to match an already-canonicalized machine name.
+ ;;
+ *)
+ echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+ exit 1
+ ;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+ *-digital*)
+ basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+ ;;
+ *-commodore*)
+ basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+ ;;
+ *)
+ ;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+ # First match some system type aliases
+ # that might get confused with valid system types.
+ # -solaris* is a basic system type, with this one exception.
+ -solaris1 | -solaris1.*)
+ os=`echo $os | sed -e 's|solaris1|sunos4|'`
+ ;;
+ -solaris)
+ os=-solaris2
+ ;;
+ -svr4*)
+ os=-sysv4
+ ;;
+ -unixware*)
+ os=-sysv4.2uw
+ ;;
+ -gnu/linux*)
+ os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+ ;;
+ # First accept the basic system types.
+ # The portable systems comes first.
+ # Each alternative MUST END IN A *, to match a version number.
+ # -sysv* is not here because it comes later, after sysvr4.
+ -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+ | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
+ | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
+ | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+ | -aos* \
+ | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+ | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+ | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* | -openbsd* \
+ | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+ | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+ | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+ | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+ | -chorusos* | -chorusrdb* \
+ | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+ | -mingw32* | -linux-gnu* | -linux-uclibc* | -uxpv* | -beos* | -mpeix* | -udk* \
+ | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+ | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+ | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+ | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+ | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+ | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+ | -skyos* | -haiku*)
+ # Remember, each alternative MUST END IN *, to match a version number.
+ ;;
+ -qnx*)
+ case $basic_machine in
+ x86-* | i*86-*)
+ ;;
+ *)
+ os=-nto$os
+ ;;
+ esac
+ ;;
+ -nto-qnx*)
+ ;;
+ -nto*)
+ os=`echo $os | sed -e 's|nto|nto-qnx|'`
+ ;;
+ -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+ | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+ | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+ ;;
+ -mac*)
+ os=`echo $os | sed -e 's|mac|macos|'`
+ ;;
+ -linux-dietlibc)
+ os=-linux-dietlibc
+ ;;
+ -linux*)
+ os=`echo $os | sed -e 's|linux|linux-gnu|'`
+ ;;
+ -sunos5*)
+ os=`echo $os | sed -e 's|sunos5|solaris2|'`
+ ;;
+ -sunos6*)
+ os=`echo $os | sed -e 's|sunos6|solaris3|'`
+ ;;
+ -opened*)
+ os=-openedition
+ ;;
+ -os400*)
+ os=-os400
+ ;;
+ -wince*)
+ os=-wince
+ ;;
+ -osfrose*)
+ os=-osfrose
+ ;;
+ -osf*)
+ os=-osf
+ ;;
+ -utek*)
+ os=-bsd
+ ;;
+ -dynix*)
+ os=-bsd
+ ;;
+ -acis*)
+ os=-aos
+ ;;
+ -atheos*)
+ os=-atheos
+ ;;
+ -syllable*)
+ os=-syllable
+ ;;
+ -386bsd)
+ os=-bsd
+ ;;
+ -ctix* | -uts*)
+ os=-sysv
+ ;;
+ -nova*)
+ os=-rtmk-nova
+ ;;
+ -ns2 )
+ os=-nextstep2
+ ;;
+ -nsk*)
+ os=-nsk
+ ;;
+ # Preserve the version number of sinix5.
+ -sinix5.*)
+ os=`echo $os | sed -e 's|sinix|sysv|'`
+ ;;
+ -sinix*)
+ os=-sysv4
+ ;;
+ -tpf*)
+ os=-tpf
+ ;;
+ -triton*)
+ os=-sysv3
+ ;;
+ -oss*)
+ os=-sysv3
+ ;;
+ -svr4)
+ os=-sysv4
+ ;;
+ -svr3)
+ os=-sysv3
+ ;;
+ -sysvr4)
+ os=-sysv4
+ ;;
+ # This must come after -sysvr4.
+ -sysv*)
+ ;;
+ -ose*)
+ os=-ose
+ ;;
+ -es1800*)
+ os=-ose
+ ;;
+ -xenix)
+ os=-xenix
+ ;;
+ -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+ os=-mint
+ ;;
+ -aros*)
+ os=-aros
+ ;;
+ -kaos*)
+ os=-kaos
+ ;;
+ -zvmoe)
+ os=-zvmoe
+ ;;
+ -none)
+ ;;
+ *)
+ # Get rid of the `-' at the beginning of $os.
+ os=`echo $os | sed 's/[^-]*-//'`
+ echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+ exit 1
+ ;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system. Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+ *-acorn)
+ os=-riscix1.2
+ ;;
+ arm*-rebel)
+ os=-linux
+ ;;
+ arm*-semi)
+ os=-aout
+ ;;
+ c4x-* | tic4x-*)
+ os=-coff
+ ;;
+ # This must come before the *-dec entry.
+ pdp10-*)
+ os=-tops20
+ ;;
+ pdp11-*)
+ os=-none
+ ;;
+ *-dec | vax-*)
+ os=-ultrix4.2
+ ;;
+ m68*-apollo)
+ os=-domain
+ ;;
+ i386-sun)
+ os=-sunos4.0.2
+ ;;
+ m68000-sun)
+ os=-sunos3
+ # This also exists in the configure program, but was not the
+ # default.
+ # os=-sunos4
+ ;;
+ m68*-cisco)
+ os=-aout
+ ;;
+ mips*-cisco)
+ os=-elf
+ ;;
+ mips*-*)
+ os=-elf
+ ;;
+ or32-*)
+ os=-coff
+ ;;
+ *-tti) # must be before sparc entry or we get the wrong os.
+ os=-sysv3
+ ;;
+ sparc-* | *-sun)
+ os=-sunos4.1.1
+ ;;
+ *-be)
+ os=-beos
+ ;;
+ *-haiku)
+ os=-haiku
+ ;;
+ *-ibm)
+ os=-aix
+ ;;
+ *-knuth)
+ os=-mmixware
+ ;;
+ *-wec)
+ os=-proelf
+ ;;
+ *-winbond)
+ os=-proelf
+ ;;
+ *-oki)
+ os=-proelf
+ ;;
+ *-hp)
+ os=-hpux
+ ;;
+ *-hitachi)
+ os=-hiux
+ ;;
+ i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+ os=-sysv
+ ;;
+ *-cbm)
+ os=-amigaos
+ ;;
+ *-dg)
+ os=-dgux
+ ;;
+ *-dolphin)
+ os=-sysv3
+ ;;
+ m68k-ccur)
+ os=-rtu
+ ;;
+ m88k-omron*)
+ os=-luna
+ ;;
+ *-next )
+ os=-nextstep
+ ;;
+ *-sequent)
+ os=-ptx
+ ;;
+ *-crds)
+ os=-unos
+ ;;
+ *-ns)
+ os=-genix
+ ;;
+ i370-*)
+ os=-mvs
+ ;;
+ *-next)
+ os=-nextstep3
+ ;;
+ *-gould)
+ os=-sysv
+ ;;
+ *-highlevel)
+ os=-bsd
+ ;;
+ *-encore)
+ os=-bsd
+ ;;
+ *-sgi)
+ os=-irix
+ ;;
+ *-siemens)
+ os=-sysv4
+ ;;
+ *-masscomp)
+ os=-rtu
+ ;;
+ f30[01]-fujitsu | f700-fujitsu)
+ os=-uxpv
+ ;;
+ *-rom68k)
+ os=-coff
+ ;;
+ *-*bug)
+ os=-coff
+ ;;
+ *-apple)
+ os=-macos
+ ;;
+ *-atari*)
+ os=-mint
+ ;;
+ *)
+ os=-none
+ ;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer. We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+ *-unknown)
+ case $os in
+ -riscix*)
+ vendor=acorn
+ ;;
+ -sunos*)
+ vendor=sun
+ ;;
+ -aix*)
+ vendor=ibm
+ ;;
+ -beos*)
+ vendor=be
+ ;;
+ -hpux*)
+ vendor=hp
+ ;;
+ -mpeix*)
+ vendor=hp
+ ;;
+ -hiux*)
+ vendor=hitachi
+ ;;
+ -unos*)
+ vendor=crds
+ ;;
+ -dgux*)
+ vendor=dg
+ ;;
+ -luna*)
+ vendor=omron
+ ;;
+ -genix*)
+ vendor=ns
+ ;;
+ -mvs* | -opened*)
+ vendor=ibm
+ ;;
+ -os400*)
+ vendor=ibm
+ ;;
+ -ptx*)
+ vendor=sequent
+ ;;
+ -tpf*)
+ vendor=ibm
+ ;;
+ -vxsim* | -vxworks* | -windiss*)
+ vendor=wrs
+ ;;
+ -aux*)
+ vendor=apple
+ ;;
+ -hms*)
+ vendor=hitachi
+ ;;
+ -mpw* | -macos*)
+ vendor=apple
+ ;;
+ -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+ vendor=atari
+ ;;
+ -vos*)
+ vendor=stratus
+ ;;
+ esac
+ basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+ ;;
+esac
+
+echo $basic_machine$os
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/build-aux/depcomp b/build-aux/depcomp
new file mode 100755
index 0000000..04701da
--- /dev/null
+++ b/build-aux/depcomp
@@ -0,0 +1,530 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2005-07-09.11
+
+# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+ '')
+ echo "$0: No command. Try \`$0 --help' for more information." 1>&2
+ exit 1;
+ ;;
+ -h | --h*)
+ cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+ depmode Dependency tracking mode.
+ source Source file read by `PROGRAMS ARGS'.
+ object Object file output by `PROGRAMS ARGS'.
+ DEPDIR directory where to store dependencies.
+ depfile Dependency file to output.
+ tmpdepfile Temporary file to use when outputing dependencies.
+ libtool Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+ exit $?
+ ;;
+ -v | --v*)
+ echo "depcomp $scriptversion"
+ exit $?
+ ;;
+esac
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+ echo "depcomp: Variables source, object and depmode must be set" 1>&2
+ exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+ sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags. We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write. Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+ # HP compiler uses -M and no extra arg.
+ gccflag=-M
+ depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+ # This is just like dashmstdout with a different argument.
+ dashmflag=-xM
+ depmode=dashmstdout
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want. Yay! Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff. Hmm.
+ "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ mv "$tmpdepfile" "$depfile"
+ ;;
+
+gcc)
+## There are various ways to get dependency output from gcc. Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+## up in a subdir. Having to rename by hand is ugly.
+## (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+## -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+## than renaming).
+ if test -z "$gccflag"; then
+ gccflag=-MD,
+ fi
+ "$@" -Wp,"$gccflag$tmpdepfile"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+ sed -e 's/^[^:]*: / /' \
+ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header). We avoid this by adding
+## dummy dependencies for each header file. Too bad gcc doesn't do
+## this for us directly.
+ tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'. On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+hp)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+sgi)
+ if test "$libtool" = yes; then
+ "$@" "-Wp,-MDupdate,$tmpdepfile"
+ else
+ "$@" -MDupdate "$tmpdepfile"
+ fi
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+
+ if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
+ echo "$object : \\" > "$depfile"
+
+ # Clip off the initial element (the dependent). Don't try to be
+ # clever and replace this with sed code, as IRIX sed won't handle
+ # lines with more than a fixed number of characters (4096 in
+ # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
+ # the IRIX cc adds comments like `#:fec' to the end of the
+ # dependency line.
+ tr ' ' '
+' < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+ tr '
+' ' ' >> $depfile
+ echo >> $depfile
+
+ # The second pass generates a dummy entry for each header file.
+ tr ' ' '
+' < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+ >> $depfile
+ else
+ # The sourcefile does not contain any dependencies, so just
+ # store a dummy comment line, to avoid errors with the Makefile
+ # "include basename.Plo" scheme.
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+aix)
+ # The C for AIX Compiler uses -M and outputs the dependencies
+ # in a .u file. In older versions, this file always lives in the
+ # current directory. Also, the AIX compiler puts `$object:' at the
+ # start of each line; $object doesn't have directory information.
+ # Version 6 uses the directory in both cases.
+ stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
+ tmpdepfile="$stripped.u"
+ if test "$libtool" = yes; then
+ "$@" -Wc,-M
+ else
+ "$@" -M
+ fi
+ stat=$?
+
+ if test -f "$tmpdepfile"; then :
+ else
+ stripped=`echo "$stripped" | sed 's,^.*/,,'`
+ tmpdepfile="$stripped.u"
+ fi
+
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+
+ if test -f "$tmpdepfile"; then
+ outname="$stripped.o"
+ # Each line is of the form `foo.o: dependent.h'.
+ # Do two passes, one to just change these to
+ # `$object: dependent.h' and one to simply `dependent.h:'.
+ sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
+ sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
+ else
+ # The sourcefile does not contain any dependencies, so just
+ # store a dummy comment line, to avoid errors with the Makefile
+ # "include basename.Plo" scheme.
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+icc)
+ # Intel's C compiler understands `-MD -MF file'. However on
+ # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+ # ICC 7.0 will fill foo.d with something like
+ # foo.o: sub/foo.c
+ # foo.o: sub/foo.h
+ # which is wrong. We want:
+ # sub/foo.o: sub/foo.c
+ # sub/foo.o: sub/foo.h
+ # sub/foo.c:
+ # sub/foo.h:
+ # ICC 7.1 will output
+ # foo.o: sub/foo.c sub/foo.h
+ # and will wrap long lines using \ :
+ # foo.o: sub/foo.c ... \
+ # sub/foo.h ... \
+ # ...
+
+ "$@" -MD -MF "$tmpdepfile"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ # Each line is of the form `foo.o: dependent.h',
+ # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+ # Do two passes, one to just change these to
+ # `$object: dependent.h' and one to simply `dependent.h:'.
+ sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+ # Some versions of the HPUX 10.20 sed can't process this invocation
+ # correctly. Breaking it into two sed invocations is a workaround.
+ sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
+ sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+tru64)
+ # The Tru64 compiler uses -MD to generate dependencies as a side
+ # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+ # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+ # dependencies in `foo.d' instead, so we check for that too.
+ # Subdirectories are respected.
+ dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+ test "x$dir" = "x$object" && dir=
+ base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+
+ if test "$libtool" = yes; then
+ # With Tru64 cc, shared objects can also be used to make a
+ # static library. This mecanism is used in libtool 1.4 series to
+ # handle both shared and static libraries in a single compilation.
+ # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
+ #
+ # With libtool 1.5 this exception was removed, and libtool now
+ # generates 2 separate objects for the 2 libraries. These two
+ # compilations output dependencies in in $dir.libs/$base.o.d and
+ # in $dir$base.o.d. We have to check for both files, because
+ # one of the two compilations can be disabled. We should prefer
+ # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+ # automatically cleaned when .libs/ is deleted, while ignoring
+ # the former would cause a distcleancheck panic.
+ tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
+ tmpdepfile2=$dir$base.o.d # libtool 1.5
+ tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
+ tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
+ "$@" -Wc,-MD
+ else
+ tmpdepfile1=$dir$base.o.d
+ tmpdepfile2=$dir$base.d
+ tmpdepfile3=$dir$base.d
+ tmpdepfile4=$dir$base.d
+ "$@" -MD
+ fi
+
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+ exit $stat
+ fi
+
+ for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+ do
+ test -f "$tmpdepfile" && break
+ done
+ if test -f "$tmpdepfile"; then
+ sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+ # That's a tab and a space in the [].
+ sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+ else
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+#nosideeffect)
+ # This comment above is used by automake to tell side-effect
+ # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout, regardless of -o.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test $1 != '--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ # Remove `-o $object'.
+ IFS=" "
+ for arg
+ do
+ case $arg in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # $arg
+ ;;
+ esac
+ done
+
+ test -z "$dashmflag" && dashmflag=-M
+ # Require at least two characters before searching for `:'
+ # in the target name. This is to cope with DOS-style filenames:
+ # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+ "$@" $dashmflag |
+ sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
+ rm -f "$depfile"
+ cat < "$tmpdepfile" > "$depfile"
+ tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+dashXmstdout)
+ # This case only exists to satisfy depend.m4. It is never actually
+ # run, as this mode is specially recognized in the preamble.
+ exit 1
+ ;;
+
+makedepend)
+ "$@" || exit $?
+ # Remove any Libtool call
+ if test "$libtool" = yes; then
+ while test $1 != '--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+ # X makedepend
+ shift
+ cleared=no
+ for arg in "$@"; do
+ case $cleared in
+ no)
+ set ""; shift
+ cleared=yes ;;
+ esac
+ case "$arg" in
+ -D*|-I*)
+ set fnord "$@" "$arg"; shift ;;
+ # Strip any option that makedepend may not understand. Remove
+ # the object too, otherwise makedepend will parse it as a source file.
+ -*|$object)
+ ;;
+ *)
+ set fnord "$@" "$arg"; shift ;;
+ esac
+ done
+ obj_suffix="`echo $object | sed 's/^.*\././'`"
+ touch "$tmpdepfile"
+ ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+ rm -f "$depfile"
+ cat < "$tmpdepfile" > "$depfile"
+ sed '1,2d' "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile" "$tmpdepfile".bak
+ ;;
+
+cpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test $1 != '--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ # Remove `-o $object'.
+ IFS=" "
+ for arg
+ do
+ case $arg in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # $arg
+ ;;
+ esac
+ done
+
+ "$@" -E |
+ sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+ -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+ sed '$ s: \\$::' > "$tmpdepfile"
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ cat < "$tmpdepfile" >> "$depfile"
+ sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+msvisualcpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout, regardless of -o,
+ # because we must use -o when running libtool.
+ "$@" || exit $?
+ IFS=" "
+ for arg
+ do
+ case "$arg" in
+ "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+ set fnord "$@"
+ shift
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift
+ shift
+ ;;
+ esac
+ done
+ "$@" -E |
+ sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
+ echo " " >> "$depfile"
+ . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+none)
+ exec "$@"
+ ;;
+
+*)
+ echo "Unknown depmode $depmode" 1>&2
+ exit 1
+ ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/build-aux/install-sh b/build-aux/install-sh
new file mode 100755
index 0000000..4d4a951
--- /dev/null
+++ b/build-aux/install-sh
@@ -0,0 +1,323 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2005-05-14.22
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch. It can only install one file at a time, a restriction
+# shared with many OS's install programs.
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+
+chmodcmd="$chmodprog 0755"
+chowncmd=
+chgrpcmd=
+stripcmd=
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=
+dst=
+dir_arg=
+dstarg=
+no_target_directory=
+
+usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+ or: $0 [OPTION]... SRCFILES... DIRECTORY
+ or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+ or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+-c (ignored)
+-d create directories instead of installing files.
+-g GROUP $chgrpprog installed files to GROUP.
+-m MODE $chmodprog installed files to MODE.
+-o USER $chownprog installed files to USER.
+-s $stripprog installed files.
+-t DIRECTORY install into DIRECTORY.
+-T report an error if DSTFILE is a directory.
+--help display this help and exit.
+--version display version info and exit.
+
+Environment variables override the default commands:
+ CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
+"
+
+while test -n "$1"; do
+ case $1 in
+ -c) shift
+ continue;;
+
+ -d) dir_arg=true
+ shift
+ continue;;
+
+ -g) chgrpcmd="$chgrpprog $2"
+ shift
+ shift
+ continue;;
+
+ --help) echo "$usage"; exit $?;;
+
+ -m) chmodcmd="$chmodprog $2"
+ shift
+ shift
+ continue;;
+
+ -o) chowncmd="$chownprog $2"
+ shift
+ shift
+ continue;;
+
+ -s) stripcmd=$stripprog
+ shift
+ continue;;
+
+ -t) dstarg=$2
+ shift
+ shift
+ continue;;
+
+ -T) no_target_directory=true
+ shift
+ continue;;
+
+ --version) echo "$0 $scriptversion"; exit $?;;
+
+ *) # When -d is used, all remaining arguments are directories to create.
+ # When -t is used, the destination is already specified.
+ test -n "$dir_arg$dstarg" && break
+ # Otherwise, the last argument is the destination. Remove it from $@.
+ for arg
+ do
+ if test -n "$dstarg"; then
+ # $@ is not empty: it contains at least $arg.
+ set fnord "$@" "$dstarg"
+ shift # fnord
+ fi
+ shift # arg
+ dstarg=$arg
+ done
+ break;;
+ esac
+done
+
+if test -z "$1"; then
+ if test -z "$dir_arg"; then
+ echo "$0: no input file specified." >&2
+ exit 1
+ fi
+ # It's OK to call `install-sh -d' without argument.
+ # This can happen when creating conditional directories.
+ exit 0
+fi
+
+for src
+do
+ # Protect names starting with `-'.
+ case $src in
+ -*) src=./$src ;;
+ esac
+
+ if test -n "$dir_arg"; then
+ dst=$src
+ src=
+
+ if test -d "$dst"; then
+ mkdircmd=:
+ chmodcmd=
+ else
+ mkdircmd=$mkdirprog
+ fi
+ else
+ # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+ # might cause directories to be created, which would be especially bad
+ # if $src (and thus $dsttmp) contains '*'.
+ if test ! -f "$src" && test ! -d "$src"; then
+ echo "$0: $src does not exist." >&2
+ exit 1
+ fi
+
+ if test -z "$dstarg"; then
+ echo "$0: no destination specified." >&2
+ exit 1
+ fi
+
+ dst=$dstarg
+ # Protect names starting with `-'.
+ case $dst in
+ -*) dst=./$dst ;;
+ esac
+
+ # If destination is a directory, append the input filename; won't work
+ # if double slashes aren't ignored.
+ if test -d "$dst"; then
+ if test -n "$no_target_directory"; then
+ echo "$0: $dstarg: Is a directory" >&2
+ exit 1
+ fi
+ dst=$dst/`basename "$src"`
+ fi
+ fi
+
+ # This sed command emulates the dirname command.
+ dstdir=`echo "$dst" | sed -e 's,/*$,,;s,[^/]*$,,;s,/*$,,;s,^$,.,'`
+
+ # Make sure that the destination directory exists.
+
+ # Skip lots of stat calls in the usual case.
+ if test ! -d "$dstdir"; then
+ defaultIFS='
+ '
+ IFS="${IFS-$defaultIFS}"
+
+ oIFS=$IFS
+ # Some sh's can't handle IFS=/ for some reason.
+ IFS='%'
+ set x `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
+ shift
+ IFS=$oIFS
+
+ pathcomp=
+
+ while test $# -ne 0 ; do
+ pathcomp=$pathcomp$1
+ shift
+ if test ! -d "$pathcomp"; then
+ $mkdirprog "$pathcomp"
+ # mkdir can fail with a `File exist' error in case several
+ # install-sh are creating the directory concurrently. This
+ # is OK.
+ test -d "$pathcomp" || exit
+ fi
+ pathcomp=$pathcomp/
+ done
+ fi
+
+ if test -n "$dir_arg"; then
+ $doit $mkdircmd "$dst" \
+ && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
+ && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
+ && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
+ && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
+
+ else
+ dstfile=`basename "$dst"`
+
+ # Make a couple of temp file names in the proper directory.
+ dsttmp=$dstdir/_inst.$$_
+ rmtmp=$dstdir/_rm.$$_
+
+ # Trap to clean up those temp files at exit.
+ trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+ trap '(exit $?); exit' 1 2 13 15
+
+ # Copy the file name to the temp name.
+ $doit $cpprog "$src" "$dsttmp" &&
+
+ # and set any options; do chmod last to preserve setuid bits.
+ #
+ # If any of these fail, we abort the whole thing. If we want to
+ # ignore errors from any of these, just make sure not to ignore
+ # errors from the above "$doit $cpprog $src $dsttmp" command.
+ #
+ { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
+ && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
+ && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
+ && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
+
+ # Now rename the file to the real destination.
+ { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
+ || {
+ # The rename failed, perhaps because mv can't rename something else
+ # to itself, or perhaps because mv is so ancient that it does not
+ # support -f.
+
+ # Now remove or move aside any old file at destination location.
+ # We try this two ways since rm can't unlink itself on some
+ # systems and the destination file might be busy for other
+ # reasons. In this case, the final cleanup might fail but the new
+ # file should still install successfully.
+ {
+ if test -f "$dstdir/$dstfile"; then
+ $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
+ || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
+ || {
+ echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
+ (exit 1); exit 1
+ }
+ else
+ :
+ fi
+ } &&
+
+ # Now rename the file to the real destination.
+ $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
+ }
+ }
+ fi || { (exit 1); exit 1; }
+done
+
+# The final little trick to "correctly" pass the exit status to the exit trap.
+{
+ (exit 0); exit 0
+}
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/build-aux/mdate-sh b/build-aux/mdate-sh
new file mode 100755
index 0000000..cd916c0
--- /dev/null
+++ b/build-aux/mdate-sh
@@ -0,0 +1,201 @@
+#!/bin/sh
+# Get modification time of a file or directory and pretty-print it.
+
+scriptversion=2005-06-29.22
+
+# Copyright (C) 1995, 1996, 1997, 2003, 2004, 2005 Free Software
+# Foundation, Inc.
+# written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, June 1995
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+case $1 in
+ '')
+ echo "$0: No file. Try \`$0 --help' for more information." 1>&2
+ exit 1;
+ ;;
+ -h | --h*)
+ cat <<\EOF
+Usage: mdate-sh [--help] [--version] FILE
+
+Pretty-print the modification time of FILE.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+ exit $?
+ ;;
+ -v | --v*)
+ echo "mdate-sh $scriptversion"
+ exit $?
+ ;;
+esac
+
+# Prevent date giving response in another language.
+LANG=C
+export LANG
+LC_ALL=C
+export LC_ALL
+LC_TIME=C
+export LC_TIME
+
+# GNU ls changes its time format in response to the TIME_STYLE
+# variable. Since we cannot assume `unset' works, revert this
+# variable to its documented default.
+if test "${TIME_STYLE+set}" = set; then
+ TIME_STYLE=posix-long-iso
+ export TIME_STYLE
+fi
+
+save_arg1=$1
+
+# Find out how to get the extended ls output of a file or directory.
+if ls -L /dev/null 1>/dev/null 2>&1; then
+ ls_command='ls -L -l -d'
+else
+ ls_command='ls -l -d'
+fi
+
+# A `ls -l' line looks as follows on OS/2.
+# drwxrwx--- 0 Aug 11 2001 foo
+# This differs from Unix, which adds ownership information.
+# drwxrwx--- 2 root root 4096 Aug 11 2001 foo
+#
+# To find the date, we split the line on spaces and iterate on words
+# until we find a month. This cannot work with files whose owner is a
+# user named `Jan', or `Feb', etc. However, it's unlikely that `/'
+# will be owned by a user whose name is a month. So we first look at
+# the extended ls output of the root directory to decide how many
+# words should be skipped to get the date.
+
+# On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below.
+set x`ls -l -d /`
+
+# Find which argument is the month.
+month=
+command=
+until test $month
+do
+ shift
+ # Add another shift to the command.
+ command="$command shift;"
+ case $1 in
+ Jan) month=January; nummonth=1;;
+ Feb) month=February; nummonth=2;;
+ Mar) month=March; nummonth=3;;
+ Apr) month=April; nummonth=4;;
+ May) month=May; nummonth=5;;
+ Jun) month=June; nummonth=6;;
+ Jul) month=July; nummonth=7;;
+ Aug) month=August; nummonth=8;;
+ Sep) month=September; nummonth=9;;
+ Oct) month=October; nummonth=10;;
+ Nov) month=November; nummonth=11;;
+ Dec) month=December; nummonth=12;;
+ esac
+done
+
+# Get the extended ls output of the file or directory.
+set dummy x`eval "$ls_command \"\$save_arg1\""`
+
+# Remove all preceding arguments
+eval $command
+
+# Because of the dummy argument above, month is in $2.
+#
+# On a POSIX system, we should have
+#
+# $# = 5
+# $1 = file size
+# $2 = month
+# $3 = day
+# $4 = year or time
+# $5 = filename
+#
+# On Darwin 7.7.0 and 7.6.0, we have
+#
+# $# = 4
+# $1 = day
+# $2 = month
+# $3 = year or time
+# $4 = filename
+
+# Get the month.
+case $2 in
+ Jan) month=January; nummonth=1;;
+ Feb) month=February; nummonth=2;;
+ Mar) month=March; nummonth=3;;
+ Apr) month=April; nummonth=4;;
+ May) month=May; nummonth=5;;
+ Jun) month=June; nummonth=6;;
+ Jul) month=July; nummonth=7;;
+ Aug) month=August; nummonth=8;;
+ Sep) month=September; nummonth=9;;
+ Oct) month=October; nummonth=10;;
+ Nov) month=November; nummonth=11;;
+ Dec) month=December; nummonth=12;;
+esac
+
+case $3 in
+ ???*) day=$1;;
+ *) day=$3; shift;;
+esac
+
+# Here we have to deal with the problem that the ls output gives either
+# the time of day or the year.
+case $3 in
+ *:*) set `date`; eval year=\$$#
+ case $2 in
+ Jan) nummonthtod=1;;
+ Feb) nummonthtod=2;;
+ Mar) nummonthtod=3;;
+ Apr) nummonthtod=4;;
+ May) nummonthtod=5;;
+ Jun) nummonthtod=6;;
+ Jul) nummonthtod=7;;
+ Aug) nummonthtod=8;;
+ Sep) nummonthtod=9;;
+ Oct) nummonthtod=10;;
+ Nov) nummonthtod=11;;
+ Dec) nummonthtod=12;;
+ esac
+ # For the first six month of the year the time notation can also
+ # be used for files modified in the last year.
+ if (expr $nummonth \> $nummonthtod) > /dev/null;
+ then
+ year=`expr $year - 1`
+ fi;;
+ *) year=$3;;
+esac
+
+# The result.
+echo $day $month $year
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/build-aux/missing b/build-aux/missing
new file mode 100755
index 0000000..894e786
--- /dev/null
+++ b/build-aux/missing
@@ -0,0 +1,360 @@
+#! /bin/sh
+# Common stub for a few missing GNU programs while installing.
+
+scriptversion=2005-06-08.21
+
+# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+ echo 1>&2 "Try \`$0 --help' for more information"
+ exit 1
+fi
+
+run=:
+
+# In the cases where this matters, `missing' is being run in the
+# srcdir already.
+if test -f configure.ac; then
+ configure_ac=configure.ac
+else
+ configure_ac=configure.in
+fi
+
+msg="missing on your system"
+
+case "$1" in
+--run)
+ # Try to run requested program, and just exit if it succeeds.
+ run=
+ shift
+ "$@" && exit 0
+ # Exit code 63 means version mismatch. This often happens
+ # when the user try to use an ancient version of a tool on
+ # a file that requires a minimum version. In this case we
+ # we should proceed has if the program had been absent, or
+ # if --run hadn't been passed.
+ if test $? = 63; then
+ run=:
+ msg="probably too old"
+ fi
+ ;;
+
+ -h|--h|--he|--hel|--help)
+ echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+error status if there is no known handling for PROGRAM.
+
+Options:
+ -h, --help display this help and exit
+ -v, --version output version information and exit
+ --run try to run the given command, and emulate it if it fails
+
+Supported PROGRAM values:
+ aclocal touch file \`aclocal.m4'
+ autoconf touch file \`configure'
+ autoheader touch file \`config.h.in'
+ automake touch all \`Makefile.in' files
+ bison create \`y.tab.[ch]', if possible, from existing .[ch]
+ flex create \`lex.yy.c', if possible, from existing .c
+ help2man touch the output file
+ lex create \`lex.yy.c', if possible, from existing .c
+ makeinfo touch the output file
+ tar try tar, gnutar, gtar, then tar without non-portable flags
+ yacc create \`y.tab.[ch]', if possible, from existing .[ch]
+
+Send bug reports to <bug-automake@gnu.org>."
+ exit $?
+ ;;
+
+ -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+ echo "missing $scriptversion (GNU Automake)"
+ exit $?
+ ;;
+
+ -*)
+ echo 1>&2 "$0: Unknown \`$1' option"
+ echo 1>&2 "Try \`$0 --help' for more information"
+ exit 1
+ ;;
+
+esac
+
+# Now exit if we have it, but it failed. Also exit now if we
+# don't have it and --version was passed (most likely to detect
+# the program).
+case "$1" in
+ lex|yacc)
+ # Not GNU programs, they don't have --version.
+ ;;
+
+ tar)
+ if test -n "$run"; then
+ echo 1>&2 "ERROR: \`tar' requires --run"
+ exit 1
+ elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+ exit 1
+ fi
+ ;;
+
+ *)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+ # Could not run --version or --help. This is probably someone
+ # running `$TOOL --version' or `$TOOL --help' to check whether
+ # $TOOL exists and not knowing $TOOL uses missing.
+ exit 1
+ fi
+ ;;
+esac
+
+# If it does not exist, or fails to run (possibly an outdated version),
+# try to emulate it.
+case "$1" in
+ aclocal*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`acinclude.m4' or \`${configure_ac}'. You might want
+ to install the \`Automake' and \`Perl' packages. Grab them from
+ any GNU archive site."
+ touch aclocal.m4
+ ;;
+
+ autoconf)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`${configure_ac}'. You might want to install the
+ \`Autoconf' and \`GNU m4' packages. Grab them from any GNU
+ archive site."
+ touch configure
+ ;;
+
+ autoheader)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`acconfig.h' or \`${configure_ac}'. You might want
+ to install the \`Autoconf' and \`GNU m4' packages. Grab them
+ from any GNU archive site."
+ files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
+ test -z "$files" && files="config.h"
+ touch_files=
+ for f in $files; do
+ case "$f" in
+ *:*) touch_files="$touch_files "`echo "$f" |
+ sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+ *) touch_files="$touch_files $f.in";;
+ esac
+ done
+ touch $touch_files
+ ;;
+
+ automake*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
+ You might want to install the \`Automake' and \`Perl' packages.
+ Grab them from any GNU archive site."
+ find . -type f -name Makefile.am -print |
+ sed 's/\.am$/.in/' |
+ while read f; do touch "$f"; done
+ ;;
+
+ autom4te)
+ echo 1>&2 "\
+WARNING: \`$1' is needed, but is $msg.
+ You might have modified some files without having the
+ proper tools for further handling them.
+ You can get \`$1' as part of \`Autoconf' from any GNU
+ archive site."
+
+ file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
+ test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
+ if test -f "$file"; then
+ touch $file
+ else
+ test -z "$file" || exec >$file
+ echo "#! /bin/sh"
+ echo "# Created by GNU Automake missing as a replacement of"
+ echo "# $ $@"
+ echo "exit 0"
+ chmod +x $file
+ exit 1
+ fi
+ ;;
+
+ bison|yacc)
+ echo 1>&2 "\
+WARNING: \`$1' $msg. You should only need it if
+ you modified a \`.y' file. You may need the \`Bison' package
+ in order for those modifications to take effect. You can get
+ \`Bison' from any GNU archive site."
+ rm -f y.tab.c y.tab.h
+ if [ $# -ne 1 ]; then
+ eval LASTARG="\${$#}"
+ case "$LASTARG" in
+ *.y)
+ SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+ if [ -f "$SRCFILE" ]; then
+ cp "$SRCFILE" y.tab.c
+ fi
+ SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+ if [ -f "$SRCFILE" ]; then
+ cp "$SRCFILE" y.tab.h
+ fi
+ ;;
+ esac
+ fi
+ if [ ! -f y.tab.h ]; then
+ echo >y.tab.h
+ fi
+ if [ ! -f y.tab.c ]; then
+ echo 'main() { return 0; }' >y.tab.c
+ fi
+ ;;
+
+ lex|flex)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified a \`.l' file. You may need the \`Flex' package
+ in order for those modifications to take effect. You can get
+ \`Flex' from any GNU archive site."
+ rm -f lex.yy.c
+ if [ $# -ne 1 ]; then
+ eval LASTARG="\${$#}"
+ case "$LASTARG" in
+ *.l)
+ SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+ if [ -f "$SRCFILE" ]; then
+ cp "$SRCFILE" lex.yy.c
+ fi
+ ;;
+ esac
+ fi
+ if [ ! -f lex.yy.c ]; then
+ echo 'main() { return 0; }' >lex.yy.c
+ fi
+ ;;
+
+ help2man)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified a dependency of a manual page. You may need the
+ \`Help2man' package in order for those modifications to take
+ effect. You can get \`Help2man' from any GNU archive site."
+
+ file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+ if test -z "$file"; then
+ file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
+ fi
+ if [ -f "$file" ]; then
+ touch $file
+ else
+ test -z "$file" || exec >$file
+ echo ".ab help2man is required to generate this page"
+ exit 1
+ fi
+ ;;
+
+ makeinfo)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified a \`.texi' or \`.texinfo' file, or any other file
+ indirectly affecting the aspect of the manual. The spurious
+ call might also be the consequence of using a buggy \`make' (AIX,
+ DU, IRIX). You might want to install the \`Texinfo' package or
+ the \`GNU make' package. Grab either from any GNU archive site."
+ # The file to touch is that specified with -o ...
+ file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+ if test -z "$file"; then
+ # ... or it is the one specified with @setfilename ...
+ infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
+ file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $infile`
+ # ... or it is derived from the source name (dir/f.texi becomes f.info)
+ test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
+ fi
+ # If the file does not exist, the user really needs makeinfo;
+ # let's fail without touching anything.
+ test -f $file || exit 1
+ touch $file
+ ;;
+
+ tar)
+ shift
+
+ # We have already tried tar in the generic part.
+ # Look for gnutar/gtar before invocation to avoid ugly error
+ # messages.
+ if (gnutar --version > /dev/null 2>&1); then
+ gnutar "$@" && exit 0
+ fi
+ if (gtar --version > /dev/null 2>&1); then
+ gtar "$@" && exit 0
+ fi
+ firstarg="$1"
+ if shift; then
+ case "$firstarg" in
+ *o*)
+ firstarg=`echo "$firstarg" | sed s/o//`
+ tar "$firstarg" "$@" && exit 0
+ ;;
+ esac
+ case "$firstarg" in
+ *h*)
+ firstarg=`echo "$firstarg" | sed s/h//`
+ tar "$firstarg" "$@" && exit 0
+ ;;
+ esac
+ fi
+
+ echo 1>&2 "\
+WARNING: I can't seem to be able to run \`tar' with the given arguments.
+ You may want to install GNU tar or Free paxutils, or check the
+ command line arguments."
+ exit 1
+ ;;
+
+ *)
+ echo 1>&2 "\
+WARNING: \`$1' is needed, and is $msg.
+ You might have modified some files without having the
+ proper tools for further handling them. Check the \`README' file,
+ it often tells you about the needed prerequisites for installing
+ this package. You may also peek at any GNU archive site, in case
+ some other package would contain this missing \`$1' program."
+ exit 1
+ ;;
+esac
+
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/build-aux/mkinstalldirs b/build-aux/mkinstalldirs
new file mode 100755
index 0000000..259dbfc
--- /dev/null
+++ b/build-aux/mkinstalldirs
@@ -0,0 +1,158 @@
+#! /bin/sh
+# mkinstalldirs --- make directory hierarchy
+
+scriptversion=2005-06-29.22
+
+# Original author: Noah Friedman <friedman@prep.ai.mit.edu>
+# Created: 1993-05-16
+# Public domain.
+#
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+errstatus=0
+dirmode=
+
+usage="\
+Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ...
+
+Create each directory DIR (with mode MODE, if specified), including all
+leading file name components.
+
+Report bugs to <bug-automake@gnu.org>."
+
+# process command line arguments
+while test $# -gt 0 ; do
+ case $1 in
+ -h | --help | --h*) # -h for help
+ echo "$usage"
+ exit $?
+ ;;
+ -m) # -m PERM arg
+ shift
+ test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
+ dirmode=$1
+ shift
+ ;;
+ --version)
+ echo "$0 $scriptversion"
+ exit $?
+ ;;
+ --) # stop option processing
+ shift
+ break
+ ;;
+ -*) # unknown option
+ echo "$usage" 1>&2
+ exit 1
+ ;;
+ *) # first non-opt arg
+ break
+ ;;
+ esac
+done
+
+for file
+do
+ if test -d "$file"; then
+ shift
+ else
+ break
+ fi
+done
+
+case $# in
+ 0) exit 0 ;;
+esac
+
+# Solaris 8's mkdir -p isn't thread-safe. If you mkdir -p a/b and
+# mkdir -p a/c at the same time, both will detect that a is missing,
+# one will create a, then the other will try to create a and die with
+# a "File exists" error. This is a problem when calling mkinstalldirs
+# from a parallel make. We use --version in the probe to restrict
+# ourselves to GNU mkdir, which is thread-safe.
+case $dirmode in
+ '')
+ if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
+ echo "mkdir -p -- $*"
+ exec mkdir -p -- "$@"
+ else
+ # On NextStep and OpenStep, the `mkdir' command does not
+ # recognize any option. It will interpret all options as
+ # directories to create, and then abort because `.' already
+ # exists.
+ test -d ./-p && rmdir ./-p
+ test -d ./--version && rmdir ./--version
+ fi
+ ;;
+ *)
+ if mkdir -m "$dirmode" -p --version . >/dev/null 2>&1 &&
+ test ! -d ./--version; then
+ echo "mkdir -m $dirmode -p -- $*"
+ exec mkdir -m "$dirmode" -p -- "$@"
+ else
+ # Clean up after NextStep and OpenStep mkdir.
+ for d in ./-m ./-p ./--version "./$dirmode";
+ do
+ test -d $d && rmdir $d
+ done
+ fi
+ ;;
+esac
+
+for file
+do
+ case $file in
+ /*) pathcomp=/ ;;
+ *) pathcomp= ;;
+ esac
+ oIFS=$IFS
+ IFS=/
+ set fnord $file
+ shift
+ IFS=$oIFS
+
+ for d
+ do
+ test "x$d" = x && continue
+
+ pathcomp=$pathcomp$d
+ case $pathcomp in
+ -*) pathcomp=./$pathcomp ;;
+ esac
+
+ if test ! -d "$pathcomp"; then
+ echo "mkdir $pathcomp"
+
+ mkdir "$pathcomp" || lasterr=$?
+
+ if test ! -d "$pathcomp"; then
+ errstatus=$lasterr
+ else
+ if test ! -z "$dirmode"; then
+ echo "chmod $dirmode $pathcomp"
+ lasterr=
+ chmod "$dirmode" "$pathcomp" || lasterr=$?
+
+ if test ! -z "$lasterr"; then
+ errstatus=$lasterr
+ fi
+ fi
+ fi
+ fi
+
+ pathcomp=$pathcomp/
+ done
+done
+
+exit $errstatus
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/build-aux/prev-version.txt b/build-aux/prev-version.txt
new file mode 100644
index 0000000..cd5ac03
--- /dev/null
+++ b/build-aux/prev-version.txt
@@ -0,0 +1 @@
+2.0
diff --git a/build-aux/texinfo.tex b/build-aux/texinfo.tex
new file mode 100644
index 0000000..ff2c406
--- /dev/null
+++ b/build-aux/texinfo.tex
@@ -0,0 +1,7210 @@
+% texinfo.tex -- TeX macros to handle Texinfo files.
+%
+% Load plain if necessary, i.e., if running under initex.
+\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
+%
+\def\texinfoversion{2005-07-05.19}
+%
+% Copyright (C) 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
+% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software
+% Foundation, Inc.
+%
+% This texinfo.tex file is free software; you can redistribute it and/or
+% modify it under the terms of the GNU General Public License as
+% published by the Free Software Foundation; either version 2, or (at
+% your option) any later version.
+%
+% This texinfo.tex file is distributed in the hope that it will be
+% useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+% of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+% General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this texinfo.tex file; see the file COPYING. If not, write
+% to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+% Boston, MA 02110-1301, USA.
+%
+% As a special exception, when this file is read by TeX when processing
+% a Texinfo source document, you may use the result without
+% restriction. (This has been our intent since Texinfo was invented.)
+%
+% Please try the latest version of texinfo.tex before submitting bug
+% reports; you can get the latest version from:
+% http://www.gnu.org/software/texinfo/ (the Texinfo home page), or
+% ftp://tug.org/tex/texinfo.tex
+% (and all CTAN mirrors, see http://www.ctan.org).
+% The texinfo.tex in any given distribution could well be out
+% of date, so if that's what you're using, please check.
+%
+% Send bug reports to bug-texinfo@gnu.org. Please include including a
+% complete document in each bug report with which we can reproduce the
+% problem. Patches are, of course, greatly appreciated.
+%
+% To process a Texinfo manual with TeX, it's most reliable to use the
+% texi2dvi shell script that comes with the distribution. For a simple
+% manual foo.texi, however, you can get away with this:
+% tex foo.texi
+% texindex foo.??
+% tex foo.texi
+% tex foo.texi
+% dvips foo.dvi -o # or whatever; this makes foo.ps.
+% The extra TeX runs get the cross-reference information correct.
+% Sometimes one run after texindex suffices, and sometimes you need more
+% than two; texi2dvi does it as many times as necessary.
+%
+% It is possible to adapt texinfo.tex for other languages, to some
+% extent. You can get the existing language-specific files from the
+% full Texinfo distribution.
+%
+% The GNU Texinfo home page is http://www.gnu.org/software/texinfo.
+
+
+\message{Loading texinfo [version \texinfoversion]:}
+
+% If in a .fmt file, print the version number
+% and turn on active characters that we couldn't do earlier because
+% they might have appeared in the input file name.
+\everyjob{\message{[Texinfo version \texinfoversion]}%
+ \catcode`+=\active \catcode`\_=\active}
+
+\message{Basics,}
+\chardef\other=12
+
+% We never want plain's \outer definition of \+ in Texinfo.
+% For @tex, we can use \tabalign.
+\let\+ = \relax
+
+% Save some plain tex macros whose names we will redefine.
+\let\ptexb=\b
+\let\ptexbullet=\bullet
+\let\ptexc=\c
+\let\ptexcomma=\,
+\let\ptexdot=\.
+\let\ptexdots=\dots
+\let\ptexend=\end
+\let\ptexequiv=\equiv
+\let\ptexexclam=\!
+\let\ptexfootnote=\footnote
+\let\ptexgtr=>
+\let\ptexhat=^
+\let\ptexi=\i
+\let\ptexindent=\indent
+\let\ptexinsert=\insert
+\let\ptexlbrace=\{
+\let\ptexless=<
+\let\ptexnewwrite\newwrite
+\let\ptexnoindent=\noindent
+\let\ptexplus=+
+\let\ptexrbrace=\}
+\let\ptexslash=\/
+\let\ptexstar=\*
+\let\ptext=\t
+
+% If this character appears in an error message or help string, it
+% starts a new line in the output.
+\newlinechar = `^^J
+
+% Use TeX 3.0's \inputlineno to get the line number, for better error
+% messages, but if we're using an old version of TeX, don't do anything.
+%
+\ifx\inputlineno\thisisundefined
+ \let\linenumber = \empty % Pre-3.0.
+\else
+ \def\linenumber{l.\the\inputlineno:\space}
+\fi
+
+% Set up fixed words for English if not already set.
+\ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi
+\ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi
+\ifx\putwordfile\undefined \gdef\putwordfile{file}\fi
+\ifx\putwordin\undefined \gdef\putwordin{in}\fi
+\ifx\putwordIndexIsEmpty\undefined \gdef\putwordIndexIsEmpty{(Index is empty)}\fi
+\ifx\putwordIndexNonexistent\undefined \gdef\putwordIndexNonexistent{(Index is nonexistent)}\fi
+\ifx\putwordInfo\undefined \gdef\putwordInfo{Info}\fi
+\ifx\putwordInstanceVariableof\undefined \gdef\putwordInstanceVariableof{Instance Variable of}\fi
+\ifx\putwordMethodon\undefined \gdef\putwordMethodon{Method on}\fi
+\ifx\putwordNoTitle\undefined \gdef\putwordNoTitle{No Title}\fi
+\ifx\putwordof\undefined \gdef\putwordof{of}\fi
+\ifx\putwordon\undefined \gdef\putwordon{on}\fi
+\ifx\putwordpage\undefined \gdef\putwordpage{page}\fi
+\ifx\putwordsection\undefined \gdef\putwordsection{section}\fi
+\ifx\putwordSection\undefined \gdef\putwordSection{Section}\fi
+\ifx\putwordsee\undefined \gdef\putwordsee{see}\fi
+\ifx\putwordSee\undefined \gdef\putwordSee{See}\fi
+\ifx\putwordShortTOC\undefined \gdef\putwordShortTOC{Short Contents}\fi
+\ifx\putwordTOC\undefined \gdef\putwordTOC{Table of Contents}\fi
+%
+\ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi
+\ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi
+\ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi
+\ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi
+\ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi
+\ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi
+\ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi
+\ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi
+\ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi
+\ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi
+\ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi
+\ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi
+%
+\ifx\putwordDefmac\undefined \gdef\putwordDefmac{Macro}\fi
+\ifx\putwordDefspec\undefined \gdef\putwordDefspec{Special Form}\fi
+\ifx\putwordDefvar\undefined \gdef\putwordDefvar{Variable}\fi
+\ifx\putwordDefopt\undefined \gdef\putwordDefopt{User Option}\fi
+\ifx\putwordDeffunc\undefined \gdef\putwordDeffunc{Function}\fi
+
+% In some macros, we cannot use the `\? notation---the left quote is
+% in some cases the escape char.
+\chardef\backChar = `\\
+\chardef\colonChar = `\:
+\chardef\commaChar = `\,
+\chardef\dotChar = `\.
+\chardef\exclamChar= `\!
+\chardef\plusChar = `\+
+\chardef\questChar = `\?
+\chardef\semiChar = `\;
+\chardef\underChar = `\_
+
+\chardef\spaceChar = `\ %
+\chardef\spacecat = 10
+\def\spaceisspace{\catcode\spaceChar=\spacecat}
+
+{% for help with debugging.
+ % example usage: \expandafter\show\activebackslash
+ \catcode`\! = 0 \catcode`\\ = \active
+ !global!def!activebackslash{\}
+}
+
+% Ignore a token.
+%
+\def\gobble#1{}
+
+% The following is used inside several \edef's.
+\def\makecsname#1{\expandafter\noexpand\csname#1\endcsname}
+
+% Hyphenation fixes.
+\hyphenation{
+ Flor-i-da Ghost-script Ghost-view Mac-OS Post-Script
+ ap-pen-dix bit-map bit-maps
+ data-base data-bases eshell fall-ing half-way long-est man-u-script
+ man-u-scripts mini-buf-fer mini-buf-fers over-view par-a-digm
+ par-a-digms rath-er rec-tan-gu-lar ro-bot-ics se-vere-ly set-up spa-ces
+ spell-ing spell-ings
+ stand-alone strong-est time-stamp time-stamps which-ever white-space
+ wide-spread wrap-around
+}
+
+% Margin to add to right of even pages, to left of odd pages.
+\newdimen\bindingoffset
+\newdimen\normaloffset
+\newdimen\pagewidth \newdimen\pageheight
+
+% For a final copy, take out the rectangles
+% that mark overfull boxes (in case you have decided
+% that the text looks ok even though it passes the margin).
+%
+\def\finalout{\overfullrule=0pt}
+
+% @| inserts a changebar to the left of the current line. It should
+% surround any changed text. This approach does *not* work if the
+% change spans more than two lines of output. To handle that, we would
+% have adopt a much more difficult approach (putting marks into the main
+% vertical list for the beginning and end of each change).
+%
+\def\|{%
+ % \vadjust can only be used in horizontal mode.
+ \leavevmode
+ %
+ % Append this vertical mode material after the current line in the output.
+ \vadjust{%
+ % We want to insert a rule with the height and depth of the current
+ % leading; that is exactly what \strutbox is supposed to record.
+ \vskip-\baselineskip
+ %
+ % \vadjust-items are inserted at the left edge of the type. So
+ % the \llap here moves out into the left-hand margin.
+ \llap{%
+ %
+ % For a thicker or thinner bar, change the `1pt'.
+ \vrule height\baselineskip width1pt
+ %
+ % This is the space between the bar and the text.
+ \hskip 12pt
+ }%
+ }%
+}
+
+% Sometimes it is convenient to have everything in the transcript file
+% and nothing on the terminal. We don't just call \tracingall here,
+% since that produces some useless output on the terminal. We also make
+% some effort to order the tracing commands to reduce output in the log
+% file; cf. trace.sty in LaTeX.
+%
+\def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
+\def\loggingall{%
+ \tracingstats2
+ \tracingpages1
+ \tracinglostchars2 % 2 gives us more in etex
+ \tracingparagraphs1
+ \tracingoutput1
+ \tracingmacros2
+ \tracingrestores1
+ \showboxbreadth\maxdimen \showboxdepth\maxdimen
+ \ifx\eTeXversion\undefined\else % etex gives us more logging
+ \tracingscantokens1
+ \tracingifs1
+ \tracinggroups1
+ \tracingnesting2
+ \tracingassigns1
+ \fi
+ \tracingcommands3 % 3 gives us more in etex
+ \errorcontextlines16
+}%
+
+% add check for \lastpenalty to plain's definitions. If the last thing
+% we did was a \nobreak, we don't want to insert more space.
+%
+\def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount
+ \removelastskip\penalty-50\smallskip\fi\fi}
+\def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount
+ \removelastskip\penalty-100\medskip\fi\fi}
+\def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount
+ \removelastskip\penalty-200\bigskip\fi\fi}
+
+% For @cropmarks command.
+% Do @cropmarks to get crop marks.
+%
+\newif\ifcropmarks
+\let\cropmarks = \cropmarkstrue
+%
+% Dimensions to add cropmarks at corners.
+% Added by P. A. MacKay, 12 Nov. 1986
+%
+\newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
+\newdimen\cornerlong \cornerlong=1pc
+\newdimen\cornerthick \cornerthick=.3pt
+\newdimen\topandbottommargin \topandbottommargin=.75in
+
+% Main output routine.
+\chardef\PAGE = 255
+\output = {\onepageout{\pagecontents\PAGE}}
+
+\newbox\headlinebox
+\newbox\footlinebox
+
+% \onepageout takes a vbox as an argument. Note that \pagecontents
+% does insertions, but you have to call it yourself.
+\def\onepageout#1{%
+ \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
+ %
+ \ifodd\pageno \advance\hoffset by \bindingoffset
+ \else \advance\hoffset by -\bindingoffset\fi
+ %
+ % Do this outside of the \shipout so @code etc. will be expanded in
+ % the headline as they should be, not taken literally (outputting ''code).
+ \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
+ \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
+ %
+ {%
+ % Have to do this stuff outside the \shipout because we want it to
+ % take effect in \write's, yet the group defined by the \vbox ends
+ % before the \shipout runs.
+ %
+ \indexdummies % don't expand commands in the output.
+ \shipout\vbox{%
+ % Do this early so pdf references go to the beginning of the page.
+ \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi
+ %
+ \ifcropmarks \vbox to \outervsize\bgroup
+ \hsize = \outerhsize
+ \vskip-\topandbottommargin
+ \vtop to0pt{%
+ \line{\ewtop\hfil\ewtop}%
+ \nointerlineskip
+ \line{%
+ \vbox{\moveleft\cornerthick\nstop}%
+ \hfill
+ \vbox{\moveright\cornerthick\nstop}%
+ }%
+ \vss}%
+ \vskip\topandbottommargin
+ \line\bgroup
+ \hfil % center the page within the outer (page) hsize.
+ \ifodd\pageno\hskip\bindingoffset\fi
+ \vbox\bgroup
+ \fi
+ %
+ \unvbox\headlinebox
+ \pagebody{#1}%
+ \ifdim\ht\footlinebox > 0pt
+ % Only leave this space if the footline is nonempty.
+ % (We lessened \vsize for it in \oddfootingxxx.)
+ % The \baselineskip=24pt in plain's \makefootline has no effect.
+ \vskip 2\baselineskip
+ \unvbox\footlinebox
+ \fi
+ %
+ \ifcropmarks
+ \egroup % end of \vbox\bgroup
+ \hfil\egroup % end of (centering) \line\bgroup
+ \vskip\topandbottommargin plus1fill minus1fill
+ \boxmaxdepth = \cornerthick
+ \vbox to0pt{\vss
+ \line{%
+ \vbox{\moveleft\cornerthick\nsbot}%
+ \hfill
+ \vbox{\moveright\cornerthick\nsbot}%
+ }%
+ \nointerlineskip
+ \line{\ewbot\hfil\ewbot}%
+ }%
+ \egroup % \vbox from first cropmarks clause
+ \fi
+ }% end of \shipout\vbox
+ }% end of group with \indexdummies
+ \advancepageno
+ \ifnum\outputpenalty>-20000 \else\dosupereject\fi
+}
+
+\newinsert\margin \dimen\margin=\maxdimen
+
+\def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
+{\catcode`\@ =11
+\gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
+% marginal hacks, juha@viisa.uucp (Juha Takala)
+\ifvoid\margin\else % marginal info is present
+ \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi
+\dimen@=\dp#1 \unvbox#1
+\ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
+\ifr@ggedbottom \kern-\dimen@ \vfil \fi}
+}
+
+% Here are the rules for the cropmarks. Note that they are
+% offset so that the space between them is truly \outerhsize or \outervsize
+% (P. A. MacKay, 12 November, 1986)
+%
+\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
+\def\nstop{\vbox
+ {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
+\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
+\def\nsbot{\vbox
+ {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
+
+% Parse an argument, then pass it to #1. The argument is the rest of
+% the input line (except we remove a trailing comment). #1 should be a
+% macro which expects an ordinary undelimited TeX argument.
+%
+\def\parsearg{\parseargusing{}}
+\def\parseargusing#1#2{%
+ \def\next{#2}%
+ \begingroup
+ \obeylines
+ \spaceisspace
+ #1%
+ \parseargline\empty% Insert the \empty token, see \finishparsearg below.
+}
+
+{\obeylines %
+ \gdef\parseargline#1^^M{%
+ \endgroup % End of the group started in \parsearg.
+ \argremovecomment #1\comment\ArgTerm%
+ }%
+}
+
+% First remove any @comment, then any @c comment.
+\def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm}
+\def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm}
+
+% Each occurence of `\^^M' or `<space>\^^M' is replaced by a single space.
+%
+% \argremovec might leave us with trailing space, e.g.,
+% @end itemize @c foo
+% This space token undergoes the same procedure and is eventually removed
+% by \finishparsearg.
+%
+\def\argcheckspaces#1\^^M{\argcheckspacesX#1\^^M \^^M}
+\def\argcheckspacesX#1 \^^M{\argcheckspacesY#1\^^M}
+\def\argcheckspacesY#1\^^M#2\^^M#3\ArgTerm{%
+ \def\temp{#3}%
+ \ifx\temp\empty
+ % We cannot use \next here, as it holds the macro to run;
+ % thus we reuse \temp.
+ \let\temp\finishparsearg
+ \else
+ \let\temp\argcheckspaces
+ \fi
+ % Put the space token in:
+ \temp#1 #3\ArgTerm
+}
+
+% If a _delimited_ argument is enclosed in braces, they get stripped; so
+% to get _exactly_ the rest of the line, we had to prevent such situation.
+% We prepended an \empty token at the very beginning and we expand it now,
+% just before passing the control to \next.
+% (Similarily, we have to think about #3 of \argcheckspacesY above: it is
+% either the null string, or it ends with \^^M---thus there is no danger
+% that a pair of braces would be stripped.
+%
+% But first, we have to remove the trailing space token.
+%
+\def\finishparsearg#1 \ArgTerm{\expandafter\next\expandafter{#1}}
+
+% \parseargdef\foo{...}
+% is roughly equivalent to
+% \def\foo{\parsearg\Xfoo}
+% \def\Xfoo#1{...}
+%
+% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my
+% favourite TeX trick. --kasal, 16nov03
+
+\def\parseargdef#1{%
+ \expandafter \doparseargdef \csname\string#1\endcsname #1%
+}
+\def\doparseargdef#1#2{%
+ \def#2{\parsearg#1}%
+ \def#1##1%
+}
+
+% Several utility definitions with active space:
+{
+ \obeyspaces
+ \gdef\obeyedspace{ }
+
+ % Make each space character in the input produce a normal interword
+ % space in the output. Don't allow a line break at this space, as this
+ % is used only in environments like @example, where each line of input
+ % should produce a line of output anyway.
+ %
+ \gdef\sepspaces{\obeyspaces\let =\tie}
+
+ % If an index command is used in an @example environment, any spaces
+ % therein should become regular spaces in the raw index file, not the
+ % expansion of \tie (\leavevmode \penalty \@M \ ).
+ \gdef\unsepspaces{\let =\space}
+}
+
+
+\def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
+
+% Define the framework for environments in texinfo.tex. It's used like this:
+%
+% \envdef\foo{...}
+% \def\Efoo{...}
+%
+% It's the responsibility of \envdef to insert \begingroup before the
+% actual body; @end closes the group after calling \Efoo. \envdef also
+% defines \thisenv, so the current environment is known; @end checks
+% whether the environment name matches. The \checkenv macro can also be
+% used to check whether the current environment is the one expected.
+%
+% Non-false conditionals (@iftex, @ifset) don't fit into this, so they
+% are not treated as enviroments; they don't open a group. (The
+% implementation of @end takes care not to call \endgroup in this
+% special case.)
+
+
+% At runtime, environments start with this:
+\def\startenvironment#1{\begingroup\def\thisenv{#1}}
+% initialize
+\let\thisenv\empty
+
+% ... but they get defined via ``\envdef\foo{...}'':
+\long\def\envdef#1#2{\def#1{\startenvironment#1#2}}
+\def\envparseargdef#1#2{\parseargdef#1{\startenvironment#1#2}}
+
+% Check whether we're in the right environment:
+\def\checkenv#1{%
+ \def\temp{#1}%
+ \ifx\thisenv\temp
+ \else
+ \badenverr
+ \fi
+}
+
+% Evironment mismatch, #1 expected:
+\def\badenverr{%
+ \errhelp = \EMsimple
+ \errmessage{This command can appear only \inenvironment\temp,
+ not \inenvironment\thisenv}%
+}
+\def\inenvironment#1{%
+ \ifx#1\empty
+ out of any environment%
+ \else
+ in environment \expandafter\string#1%
+ \fi
+}
+
+% @end foo executes the definition of \Efoo.
+% But first, it executes a specialized version of \checkenv
+%
+\parseargdef\end{%
+ \if 1\csname iscond.#1\endcsname
+ \else
+ % The general wording of \badenverr may not be ideal, but... --kasal, 06nov03
+ \expandafter\checkenv\csname#1\endcsname
+ \csname E#1\endcsname
+ \endgroup
+ \fi
+}
+
+\newhelp\EMsimple{Press RETURN to continue.}
+
+
+%% Simple single-character @ commands
+
+% @@ prints an @
+% Kludge this until the fonts are right (grr).
+\def\@{{\tt\char64}}
+
+% This is turned off because it was never documented
+% and you can use @w{...} around a quote to suppress ligatures.
+%% Define @` and @' to be the same as ` and '
+%% but suppressing ligatures.
+%\def\`{{`}}
+%\def\'{{'}}
+
+% Used to generate quoted braces.
+\def\mylbrace {{\tt\char123}}
+\def\myrbrace {{\tt\char125}}
+\let\{=\mylbrace
+\let\}=\myrbrace
+\begingroup
+ % Definitions to produce \{ and \} commands for indices,
+ % and @{ and @} for the aux/toc files.
+ \catcode`\{ = \other \catcode`\} = \other
+ \catcode`\[ = 1 \catcode`\] = 2
+ \catcode`\! = 0 \catcode`\\ = \other
+ !gdef!lbracecmd[\{]%
+ !gdef!rbracecmd[\}]%
+ !gdef!lbraceatcmd[@{]%
+ !gdef!rbraceatcmd[@}]%
+!endgroup
+
+% @comma{} to avoid , parsing problems.
+\let\comma = ,
+
+% Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
+% Others are defined by plain TeX: @` @' @" @^ @~ @= @u @v @H.
+\let\, = \c
+\let\dotaccent = \.
+\def\ringaccent#1{{\accent23 #1}}
+\let\tieaccent = \t
+\let\ubaraccent = \b
+\let\udotaccent = \d
+
+% Other special characters: @questiondown @exclamdown @ordf @ordm
+% Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss.
+\def\questiondown{?`}
+\def\exclamdown{!`}
+\def\ordf{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{a}}}
+\def\ordm{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{o}}}
+
+% Dotless i and dotless j, used for accents.
+\def\imacro{i}
+\def\jmacro{j}
+\def\dotless#1{%
+ \def\temp{#1}%
+ \ifx\temp\imacro \ptexi
+ \else\ifx\temp\jmacro \j
+ \else \errmessage{@dotless can be used only with i or j}%
+ \fi\fi
+}
+
+% The \TeX{} logo, as in plain, but resetting the spacing so that a
+% period following counts as ending a sentence. (Idea found in latex.)
+%
+\edef\TeX{\TeX \spacefactor=1000 }
+
+% @LaTeX{} logo. Not quite the same results as the definition in
+% latex.ltx, since we use a different font for the raised A; it's most
+% convenient for us to use an explicitly smaller font, rather than using
+% the \scriptstyle font (since we don't reset \scriptstyle and
+% \scriptscriptstyle).
+%
+\def\LaTeX{%
+ L\kern-.36em
+ {\setbox0=\hbox{T}%
+ \vbox to \ht0{\hbox{\selectfonts\lllsize A}\vss}}%
+ \kern-.15em
+ \TeX
+}
+
+% Be sure we're in horizontal mode when doing a tie, since we make space
+% equivalent to this in @example-like environments. Otherwise, a space
+% at the beginning of a line will start with \penalty -- and
+% since \penalty is valid in vertical mode, we'd end up putting the
+% penalty on the vertical list instead of in the new paragraph.
+{\catcode`@ = 11
+ % Avoid using \@M directly, because that causes trouble
+ % if the definition is written into an index file.
+ \global\let\tiepenalty = \@M
+ \gdef\tie{\leavevmode\penalty\tiepenalty\ }
+}
+
+% @: forces normal size whitespace following.
+\def\:{\spacefactor=1000 }
+
+% @* forces a line break.
+\def\*{\hfil\break\hbox{}\ignorespaces}
+
+% @/ allows a line break.
+\let\/=\allowbreak
+
+% @. is an end-of-sentence period.
+\def\.{.\spacefactor=\endofsentencespacefactor\space}
+
+% @! is an end-of-sentence bang.
+\def\!{!\spacefactor=\endofsentencespacefactor\space}
+
+% @? is an end-of-sentence query.
+\def\?{?\spacefactor=\endofsentencespacefactor\space}
+
+% @frenchspacing on|off says whether to put extra space after punctuation.
+%
+\def\onword{on}
+\def\offword{off}
+%
+\parseargdef\frenchspacing{%
+ \def\temp{#1}%
+ \ifx\temp\onword \plainfrenchspacing
+ \else\ifx\temp\offword \plainnonfrenchspacing
+ \else
+ \errhelp = \EMsimple
+ \errmessage{Unknown @frenchspacing option `\temp', must be on/off}%
+ \fi\fi
+}
+
+% @w prevents a word break. Without the \leavevmode, @w at the
+% beginning of a paragraph, when TeX is still in vertical mode, would
+% produce a whole line of output instead of starting the paragraph.
+\def\w#1{\leavevmode\hbox{#1}}
+
+% @group ... @end group forces ... to be all on one page, by enclosing
+% it in a TeX vbox. We use \vtop instead of \vbox to construct the box
+% to keep its height that of a normal line. According to the rules for
+% \topskip (p.114 of the TeXbook), the glue inserted is
+% max (\topskip - \ht (first item), 0). If that height is large,
+% therefore, no glue is inserted, and the space between the headline and
+% the text is small, which looks bad.
+%
+% Another complication is that the group might be very large. This can
+% cause the glue on the previous page to be unduly stretched, because it
+% does not have much material. In this case, it's better to add an
+% explicit \vfill so that the extra space is at the bottom. The
+% threshold for doing this is if the group is more than \vfilllimit
+% percent of a page (\vfilllimit can be changed inside of @tex).
+%
+\newbox\groupbox
+\def\vfilllimit{0.7}
+%
+\envdef\group{%
+ \ifnum\catcode`\^^M=\active \else
+ \errhelp = \groupinvalidhelp
+ \errmessage{@group invalid in context where filling is enabled}%
+ \fi
+ \startsavinginserts
+ %
+ \setbox\groupbox = \vtop\bgroup
+ % Do @comment since we are called inside an environment such as
+ % @example, where each end-of-line in the input causes an
+ % end-of-line in the output. We don't want the end-of-line after
+ % the `@group' to put extra space in the output. Since @group
+ % should appear on a line by itself (according to the Texinfo
+ % manual), we don't worry about eating any user text.
+ \comment
+}
+%
+% The \vtop produces a box with normal height and large depth; thus, TeX puts
+% \baselineskip glue before it, and (when the next line of text is done)
+% \lineskip glue after it. Thus, space below is not quite equal to space
+% above. But it's pretty close.
+\def\Egroup{%
+ % To get correct interline space between the last line of the group
+ % and the first line afterwards, we have to propagate \prevdepth.
+ \endgraf % Not \par, as it may have been set to \lisppar.
+ \global\dimen1 = \prevdepth
+ \egroup % End the \vtop.
+ % \dimen0 is the vertical size of the group's box.
+ \dimen0 = \ht\groupbox \advance\dimen0 by \dp\groupbox
+ % \dimen2 is how much space is left on the page (more or less).
+ \dimen2 = \pageheight \advance\dimen2 by -\pagetotal
+ % if the group doesn't fit on the current page, and it's a big big
+ % group, force a page break.
+ \ifdim \dimen0 > \dimen2
+ \ifdim \pagetotal < \vfilllimit\pageheight
+ \page
+ \fi
+ \fi
+ \box\groupbox
+ \prevdepth = \dimen1
+ \checkinserts
+}
+%
+% TeX puts in an \escapechar (i.e., `@') at the beginning of the help
+% message, so this ends up printing `@group can only ...'.
+%
+\newhelp\groupinvalidhelp{%
+group can only be used in environments such as @example,^^J%
+where each line of input produces a line of output.}
+
+% @need space-in-mils
+% forces a page break if there is not space-in-mils remaining.
+
+\newdimen\mil \mil=0.001in
+
+% Old definition--didn't work.
+%\parseargdef\need{\par %
+%% This method tries to make TeX break the page naturally
+%% if the depth of the box does not fit.
+%{\baselineskip=0pt%
+%\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak
+%\prevdepth=-1000pt
+%}}
+
+\parseargdef\need{%
+ % Ensure vertical mode, so we don't make a big box in the middle of a
+ % paragraph.
+ \par
+ %
+ % If the @need value is less than one line space, it's useless.
+ \dimen0 = #1\mil
+ \dimen2 = \ht\strutbox
+ \advance\dimen2 by \dp\strutbox
+ \ifdim\dimen0 > \dimen2
+ %
+ % Do a \strut just to make the height of this box be normal, so the
+ % normal leading is inserted relative to the preceding line.
+ % And a page break here is fine.
+ \vtop to #1\mil{\strut\vfil}%
+ %
+ % TeX does not even consider page breaks if a penalty added to the
+ % main vertical list is 10000 or more. But in order to see if the
+ % empty box we just added fits on the page, we must make it consider
+ % page breaks. On the other hand, we don't want to actually break the
+ % page after the empty box. So we use a penalty of 9999.
+ %
+ % There is an extremely small chance that TeX will actually break the
+ % page at this \penalty, if there are no other feasible breakpoints in
+ % sight. (If the user is using lots of big @group commands, which
+ % almost-but-not-quite fill up a page, TeX will have a hard time doing
+ % good page breaking, for example.) However, I could not construct an
+ % example where a page broke at this \penalty; if it happens in a real
+ % document, then we can reconsider our strategy.
+ \penalty9999
+ %
+ % Back up by the size of the box, whether we did a page break or not.
+ \kern -#1\mil
+ %
+ % Do not allow a page break right after this kern.
+ \nobreak
+ \fi
+}
+
+% @br forces paragraph break (and is undocumented).
+
+\let\br = \par
+
+% @page forces the start of a new page.
+%
+\def\page{\par\vfill\supereject}
+
+% @exdent text....
+% outputs text on separate line in roman font, starting at standard page margin
+
+% This records the amount of indent in the innermost environment.
+% That's how much \exdent should take out.
+\newskip\exdentamount
+
+% This defn is used inside fill environments such as @defun.
+\parseargdef\exdent{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}
+
+% This defn is used inside nofill environments such as @example.
+\parseargdef\nofillexdent{{\advance \leftskip by -\exdentamount
+ \leftline{\hskip\leftskip{\rm#1}}}}
+
+% @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current
+% paragraph. For more general purposes, use the \margin insertion
+% class. WHICH is `l' or `r'.
+%
+\newskip\inmarginspacing \inmarginspacing=1cm
+\def\strutdepth{\dp\strutbox}
+%
+\def\doinmargin#1#2{\strut\vadjust{%
+ \nobreak
+ \kern-\strutdepth
+ \vtop to \strutdepth{%
+ \baselineskip=\strutdepth
+ \vss
+ % if you have multiple lines of stuff to put here, you'll need to
+ % make the vbox yourself of the appropriate size.
+ \ifx#1l%
+ \llap{\ignorespaces #2\hskip\inmarginspacing}%
+ \else
+ \rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}%
+ \fi
+ \null
+ }%
+}}
+\def\inleftmargin{\doinmargin l}
+\def\inrightmargin{\doinmargin r}
+%
+% @inmargin{TEXT [, RIGHT-TEXT]}
+% (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right;
+% else use TEXT for both).
+%
+\def\inmargin#1{\parseinmargin #1,,\finish}
+\def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing.
+ \setbox0 = \hbox{\ignorespaces #2}%
+ \ifdim\wd0 > 0pt
+ \def\lefttext{#1}% have both texts
+ \def\righttext{#2}%
+ \else
+ \def\lefttext{#1}% have only one text
+ \def\righttext{#1}%
+ \fi
+ %
+ \ifodd\pageno
+ \def\temp{\inrightmargin\righttext}% odd page -> outside is right margin
+ \else
+ \def\temp{\inleftmargin\lefttext}%
+ \fi
+ \temp
+}
+
+% @include file insert text of that file as input.
+%
+\def\include{\parseargusing\filenamecatcodes\includezzz}
+\def\includezzz#1{%
+ \pushthisfilestack
+ \def\thisfile{#1}%
+ {%
+ \makevalueexpandable
+ \def\temp{\input #1 }%
+ \expandafter
+ }\temp
+ \popthisfilestack
+}
+\def\filenamecatcodes{%
+ \catcode`\\=\other
+ \catcode`~=\other
+ \catcode`^=\other
+ \catcode`_=\other
+ \catcode`|=\other
+ \catcode`<=\other
+ \catcode`>=\other
+ \catcode`+=\other
+ \catcode`-=\other
+}
+
+\def\pushthisfilestack{%
+ \expandafter\pushthisfilestackX\popthisfilestack\StackTerm
+}
+\def\pushthisfilestackX{%
+ \expandafter\pushthisfilestackY\thisfile\StackTerm
+}
+\def\pushthisfilestackY #1\StackTerm #2\StackTerm {%
+ \gdef\popthisfilestack{\gdef\thisfile{#1}\gdef\popthisfilestack{#2}}%
+}
+
+\def\popthisfilestack{\errthisfilestackempty}
+\def\errthisfilestackempty{\errmessage{Internal error:
+ the stack of filenames is empty.}}
+
+\def\thisfile{}
+
+% @center line
+% outputs that line, centered.
+%
+\parseargdef\center{%
+ \ifhmode
+ \let\next\centerH
+ \else
+ \let\next\centerV
+ \fi
+ \next{\hfil \ignorespaces#1\unskip \hfil}%
+}
+\def\centerH#1{%
+ {%
+ \hfil\break
+ \advance\hsize by -\leftskip
+ \advance\hsize by -\rightskip
+ \line{#1}%
+ \break
+ }%
+}
+\def\centerV#1{\line{\kern\leftskip #1\kern\rightskip}}
+
+% @sp n outputs n lines of vertical space
+
+\parseargdef\sp{\vskip #1\baselineskip}
+
+% @comment ...line which is ignored...
+% @c is the same as @comment
+% @ignore ... @end ignore is another way to write a comment
+
+\def\comment{\begingroup \catcode`\^^M=\other%
+\catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
+\commentxxx}
+{\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
+
+\let\c=\comment
+
+% @paragraphindent NCHARS
+% We'll use ems for NCHARS, close enough.
+% NCHARS can also be the word `asis' or `none'.
+% We cannot feasibly implement @paragraphindent asis, though.
+%
+\def\asisword{asis} % no translation, these are keywords
+\def\noneword{none}
+%
+\parseargdef\paragraphindent{%
+ \def\temp{#1}%
+ \ifx\temp\asisword
+ \else
+ \ifx\temp\noneword
+ \defaultparindent = 0pt
+ \else
+ \defaultparindent = #1em
+ \fi
+ \fi
+ \parindent = \defaultparindent
+}
+
+% @exampleindent NCHARS
+% We'll use ems for NCHARS like @paragraphindent.
+% It seems @exampleindent asis isn't necessary, but
+% I preserve it to make it similar to @paragraphindent.
+\parseargdef\exampleindent{%
+ \def\temp{#1}%
+ \ifx\temp\asisword
+ \else
+ \ifx\temp\noneword
+ \lispnarrowing = 0pt
+ \else
+ \lispnarrowing = #1em
+ \fi
+ \fi
+}
+
+% @firstparagraphindent WORD
+% If WORD is `none', then suppress indentation of the first paragraph
+% after a section heading. If WORD is `insert', then do indent at such
+% paragraphs.
+%
+% The paragraph indentation is suppressed or not by calling
+% \suppressfirstparagraphindent, which the sectioning commands do.
+% We switch the definition of this back and forth according to WORD.
+% By default, we suppress indentation.
+%
+\def\suppressfirstparagraphindent{\dosuppressfirstparagraphindent}
+\def\insertword{insert}
+%
+\parseargdef\firstparagraphindent{%
+ \def\temp{#1}%
+ \ifx\temp\noneword
+ \let\suppressfirstparagraphindent = \dosuppressfirstparagraphindent
+ \else\ifx\temp\insertword
+ \let\suppressfirstparagraphindent = \relax
+ \else
+ \errhelp = \EMsimple
+ \errmessage{Unknown @firstparagraphindent option `\temp'}%
+ \fi\fi
+}
+
+% Here is how we actually suppress indentation. Redefine \everypar to
+% \kern backwards by \parindent, and then reset itself to empty.
+%
+% We also make \indent itself not actually do anything until the next
+% paragraph.
+%
+\gdef\dosuppressfirstparagraphindent{%
+ \gdef\indent{%
+ \restorefirstparagraphindent
+ \indent
+ }%
+ \gdef\noindent{%
+ \restorefirstparagraphindent
+ \noindent
+ }%
+ \global\everypar = {%
+ \kern -\parindent
+ \restorefirstparagraphindent
+ }%
+}
+
+\gdef\restorefirstparagraphindent{%
+ \global \let \indent = \ptexindent
+ \global \let \noindent = \ptexnoindent
+ \global \everypar = {}%
+}
+
+
+% @asis just yields its argument. Used with @table, for example.
+%
+\def\asis#1{#1}
+
+% @math outputs its argument in math mode.
+%
+% One complication: _ usually means subscripts, but it could also mean
+% an actual _ character, as in @math{@var{some_variable} + 1}. So make
+% _ active, and distinguish by seeing if the current family is \slfam,
+% which is what @var uses.
+{
+ \catcode\underChar = \active
+ \gdef\mathunderscore{%
+ \catcode\underChar=\active
+ \def_{\ifnum\fam=\slfam \_\else\sb\fi}%
+ }
+}
+% Another complication: we want \\ (and @\) to output a \ character.
+% FYI, plain.tex uses \\ as a temporary control sequence (why?), but
+% this is not advertised and we don't care. Texinfo does not
+% otherwise define @\.
+%
+% The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\.
+\def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi}
+%
+\def\math{%
+ \tex
+ \mathunderscore
+ \let\\ = \mathbackslash
+ \mathactive
+ $\finishmath
+}
+\def\finishmath#1{#1$\endgroup} % Close the group opened by \tex.
+
+% Some active characters (such as <) are spaced differently in math.
+% We have to reset their definitions in case the @math was an argument
+% to a command which sets the catcodes (such as @item or @section).
+%
+{
+ \catcode`^ = \active
+ \catcode`< = \active
+ \catcode`> = \active
+ \catcode`+ = \active
+ \gdef\mathactive{%
+ \let^ = \ptexhat
+ \let< = \ptexless
+ \let> = \ptexgtr
+ \let+ = \ptexplus
+ }
+}
+
+% @bullet and @minus need the same treatment as @math, just above.
+\def\bullet{$\ptexbullet$}
+\def\minus{$-$}
+
+% @dots{} outputs an ellipsis using the current font.
+% We do .5em per period so that it has the same spacing in a typewriter
+% font as three actual period characters.
+%
+\def\dots{%
+ \leavevmode
+ \hbox to 1.5em{%
+ \hskip 0pt plus 0.25fil
+ .\hfil.\hfil.%
+ \hskip 0pt plus 0.5fil
+ }%
+}
+
+% @enddots{} is an end-of-sentence ellipsis.
+%
+\def\enddots{%
+ \dots
+ \spacefactor=\endofsentencespacefactor
+}
+
+% @comma{} is so commas can be inserted into text without messing up
+% Texinfo's parsing.
+%
+\let\comma = ,
+
+% @refill is a no-op.
+\let\refill=\relax
+
+% If working on a large document in chapters, it is convenient to
+% be able to disable indexing, cross-referencing, and contents, for test runs.
+% This is done with @novalidate (before @setfilename).
+%
+\newif\iflinks \linkstrue % by default we want the aux files.
+\let\novalidate = \linksfalse
+
+% @setfilename is done at the beginning of every texinfo file.
+% So open here the files we need to have open while reading the input.
+% This makes it possible to make a .fmt file for texinfo.
+\def\setfilename{%
+ \fixbackslash % Turn off hack to swallow `\input texinfo'.
+ \iflinks
+ \tryauxfile
+ % Open the new aux file. TeX will close it automatically at exit.
+ \immediate\openout\auxfile=\jobname.aux
+ \fi % \openindices needs to do some work in any case.
+ \openindices
+ \let\setfilename=\comment % Ignore extra @setfilename cmds.
+ %
+ % If texinfo.cnf is present on the system, read it.
+ % Useful for site-wide @afourpaper, etc.
+ \openin 1 texinfo.cnf
+ \ifeof 1 \else \input texinfo.cnf \fi
+ \closein 1
+ %
+ \comment % Ignore the actual filename.
+}
+
+% Called from \setfilename.
+%
+\def\openindices{%
+ \newindex{cp}%
+ \newcodeindex{fn}%
+ \newcodeindex{vr}%
+ \newcodeindex{tp}%
+ \newcodeindex{ky}%
+ \newcodeindex{pg}%
+}
+
+% @bye.
+\outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
+
+
+\message{pdf,}
+% adobe `portable' document format
+\newcount\tempnum
+\newcount\lnkcount
+\newtoks\filename
+\newcount\filenamelength
+\newcount\pgn
+\newtoks\toksA
+\newtoks\toksB
+\newtoks\toksC
+\newtoks\toksD
+\newbox\boxA
+\newcount\countA
+\newif\ifpdf
+\newif\ifpdfmakepagedest
+
+% when pdftex is run in dvi mode, \pdfoutput is defined (so \pdfoutput=1
+% can be set). So we test for \relax and 0 as well as \undefined,
+% borrowed from ifpdf.sty.
+\ifx\pdfoutput\undefined
+\else
+ \ifx\pdfoutput\relax
+ \else
+ \ifcase\pdfoutput
+ \else
+ \pdftrue
+ \fi
+ \fi
+\fi
+
+% PDF uses PostScript string constants for the names of xref targets, to
+% for display in the outlines, and in other places. Thus, we have to
+% double any backslashes. Otherwise, a name like "\node" will be
+% interpreted as a newline (\n), followed by o, d, e. Not good.
+% http://www.ntg.nl/pipermail/ntg-pdftex/2004-July/000654.html
+% (and related messages, the final outcome is that it is up to the TeX
+% user to double the backslashes and otherwise make the string valid, so
+% that's we do).
+
+% double active backslashes.
+%
+{\catcode`\@=0 \catcode`\\=\active
+ @gdef@activebackslash{@catcode`@\=@active @otherbackslash}
+ @gdef@activebackslashdouble{%
+ @catcode@backChar=@active
+ @let\=@doublebackslash}
+}
+
+% To handle parens, we must adopt a different approach, since parens are
+% not active characters. hyperref.dtx (which has the same problem as
+% us) handles it with this amazing macro to replace tokens. I've
+% tinkered with it a little for texinfo, but it's definitely from there.
+%
+% #1 is the tokens to replace.
+% #2 is the replacement.
+% #3 is the control sequence with the string.
+%
+\def\HyPsdSubst#1#2#3{%
+ \def\HyPsdReplace##1#1##2\END{%
+ ##1%
+ \ifx\\##2\\%
+ \else
+ #2%
+ \HyReturnAfterFi{%
+ \HyPsdReplace##2\END
+ }%
+ \fi
+ }%
+ \xdef#3{\expandafter\HyPsdReplace#3#1\END}%
+}
+\long\def\HyReturnAfterFi#1\fi{\fi#1}
+
+% #1 is a control sequence in which to do the replacements.
+\def\backslashparens#1{%
+ \xdef#1{#1}% redefine it as its expansion; the definition is simply
+ % \lastnode when called from \setref -> \pdfmkdest.
+ \HyPsdSubst{(}{\backslashlparen}{#1}%
+ \HyPsdSubst{)}{\backslashrparen}{#1}%
+}
+
+{\catcode\exclamChar = 0 \catcode\backChar = \other
+ !gdef!backslashlparen{\(}%
+ !gdef!backslashrparen{\)}%
+}
+
+\ifpdf
+ \input pdfcolor
+ \pdfcatalog{/PageMode /UseOutlines}%
+ \def\dopdfimage#1#2#3{%
+ \def\imagewidth{#2}%
+ \def\imageheight{#3}%
+ % without \immediate, pdftex seg faults when the same image is
+ % included twice. (Version 3.14159-pre-1.0-unofficial-20010704.)
+ \ifnum\pdftexversion < 14
+ \immediate\pdfimage
+ \else
+ \immediate\pdfximage
+ \fi
+ \ifx\empty\imagewidth\else width \imagewidth \fi
+ \ifx\empty\imageheight\else height \imageheight \fi
+ \ifnum\pdftexversion<13
+ #1.pdf%
+ \else
+ {#1.pdf}%
+ \fi
+ \ifnum\pdftexversion < 14 \else
+ \pdfrefximage \pdflastximage
+ \fi}
+ \def\pdfmkdest#1{{%
+ % We have to set dummies so commands such as @code, and characters
+ % such as \, aren't expanded when present in a section title.
+ \atdummies
+ \activebackslashdouble
+ \def\pdfdestname{#1}%
+ \backslashparens\pdfdestname
+ \pdfdest name{\pdfdestname} xyz%
+ }}%
+ %
+ % used to mark target names; must be expandable.
+ \def\pdfmkpgn#1{#1}%
+ %
+ \let\linkcolor = \Blue % was Cyan, but that seems light?
+ \def\endlink{\Black\pdfendlink}
+ % Adding outlines to PDF; macros for calculating structure of outlines
+ % come from Petr Olsak
+ \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
+ \else \csname#1\endcsname \fi}
+ \def\advancenumber#1{\tempnum=\expnumber{#1}\relax
+ \advance\tempnum by 1
+ \expandafter\xdef\csname#1\endcsname{\the\tempnum}}
+ %
+ % #1 is the section text, which is what will be displayed in the
+ % outline by the pdf viewer. #2 is the pdf expression for the number
+ % of subentries (or empty, for subsubsections). #3 is the node text,
+ % which might be empty if this toc entry had no corresponding node.
+ % #4 is the page number
+ %
+ \def\dopdfoutline#1#2#3#4{%
+ % Generate a link to the node text if that exists; else, use the
+ % page number. We could generate a destination for the section
+ % text in the case where a section has no node, but it doesn't
+ % seem worth the trouble, since most documents are normally structured.
+ \def\pdfoutlinedest{#3}%
+ \ifx\pdfoutlinedest\empty
+ \def\pdfoutlinedest{#4}%
+ \else
+ % Doubled backslashes in the name.
+ {\activebackslashdouble \xdef\pdfoutlinedest{#3}%
+ \backslashparens\pdfoutlinedest}%
+ \fi
+ %
+ % Also double the backslashes in the display string.
+ {\activebackslashdouble \xdef\pdfoutlinetext{#1}%
+ \backslashparens\pdfoutlinetext}%
+ %
+ \pdfoutline goto name{\pdfmkpgn{\pdfoutlinedest}}#2{\pdfoutlinetext}%
+ }
+ %
+ \def\pdfmakeoutlines{%
+ \begingroup
+ % Thanh's hack / proper braces in bookmarks
+ \edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace
+ \edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace
+ %
+ % Read toc silently, to get counts of subentries for \pdfoutline.
+ \def\numchapentry##1##2##3##4{%
+ \def\thischapnum{##2}%
+ \def\thissecnum{0}%
+ \def\thissubsecnum{0}%
+ }%
+ \def\numsecentry##1##2##3##4{%
+ \advancenumber{chap\thischapnum}%
+ \def\thissecnum{##2}%
+ \def\thissubsecnum{0}%
+ }%
+ \def\numsubsecentry##1##2##3##4{%
+ \advancenumber{sec\thissecnum}%
+ \def\thissubsecnum{##2}%
+ }%
+ \def\numsubsubsecentry##1##2##3##4{%
+ \advancenumber{subsec\thissubsecnum}%
+ }%
+ \def\thischapnum{0}%
+ \def\thissecnum{0}%
+ \def\thissubsecnum{0}%
+ %
+ % use \def rather than \let here because we redefine \chapentry et
+ % al. a second time, below.
+ \def\appentry{\numchapentry}%
+ \def\appsecentry{\numsecentry}%
+ \def\appsubsecentry{\numsubsecentry}%
+ \def\appsubsubsecentry{\numsubsubsecentry}%
+ \def\unnchapentry{\numchapentry}%
+ \def\unnsecentry{\numsecentry}%
+ \def\unnsubsecentry{\numsubsecentry}%
+ \def\unnsubsubsecentry{\numsubsubsecentry}%
+ \readdatafile{toc}%
+ %
+ % Read toc second time, this time actually producing the outlines.
+ % The `-' means take the \expnumber as the absolute number of
+ % subentries, which we calculated on our first read of the .toc above.
+ %
+ % We use the node names as the destinations.
+ \def\numchapentry##1##2##3##4{%
+ \dopdfoutline{##1}{count-\expnumber{chap##2}}{##3}{##4}}%
+ \def\numsecentry##1##2##3##4{%
+ \dopdfoutline{##1}{count-\expnumber{sec##2}}{##3}{##4}}%
+ \def\numsubsecentry##1##2##3##4{%
+ \dopdfoutline{##1}{count-\expnumber{subsec##2}}{##3}{##4}}%
+ \def\numsubsubsecentry##1##2##3##4{% count is always zero
+ \dopdfoutline{##1}{}{##3}{##4}}%
+ %
+ % PDF outlines are displayed using system fonts, instead of
+ % document fonts. Therefore we cannot use special characters,
+ % since the encoding is unknown. For example, the eogonek from
+ % Latin 2 (0xea) gets translated to a | character. Info from
+ % Staszek Wawrykiewicz, 19 Jan 2004 04:09:24 +0100.
+ %
+ % xx to do this right, we have to translate 8-bit characters to
+ % their "best" equivalent, based on the @documentencoding. Right
+ % now, I guess we'll just let the pdf reader have its way.
+ \indexnofonts
+ \setupdatafile
+ \activebackslash
+ \input \jobname.toc
+ \endgroup
+ }
+ %
+ \def\skipspaces#1{\def\PP{#1}\def\D{|}%
+ \ifx\PP\D\let\nextsp\relax
+ \else\let\nextsp\skipspaces
+ \ifx\p\space\else\addtokens{\filename}{\PP}%
+ \advance\filenamelength by 1
+ \fi
+ \fi
+ \nextsp}
+ \def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax}
+ \ifnum\pdftexversion < 14
+ \let \startlink \pdfannotlink
+ \else
+ \let \startlink \pdfstartlink
+ \fi
+ \def\pdfurl#1{%
+ \begingroup
+ \normalturnoffactive\def\@{@}%
+ \makevalueexpandable
+ \leavevmode\Red
+ \startlink attr{/Border [0 0 0]}%
+ user{/Subtype /Link /A << /S /URI /URI (#1) >>}%
+ \endgroup}
+ \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}}
+ \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
+ \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks}
+ \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}}
+ \def\maketoks{%
+ \expandafter\poptoks\the\toksA|ENDTOKS|\relax
+ \ifx\first0\adn0
+ \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3
+ \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6
+ \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9
+ \else
+ \ifnum0=\countA\else\makelink\fi
+ \ifx\first.\let\next=\done\else
+ \let\next=\maketoks
+ \addtokens{\toksB}{\the\toksD}
+ \ifx\first,\addtokens{\toksB}{\space}\fi
+ \fi
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+ \next}
+ \def\makelink{\addtokens{\toksB}%
+ {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
+ \def\pdflink#1{%
+ \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
+ \linkcolor #1\endlink}
+ \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
+\else
+ \let\pdfmkdest = \gobble
+ \let\pdfurl = \gobble
+ \let\endlink = \relax
+ \let\linkcolor = \relax
+ \let\pdfmakeoutlines = \relax
+\fi % \ifx\pdfoutput
+
+
+\message{fonts,}
+
+% Change the current font style to #1, remembering it in \curfontstyle.
+% For now, we do not accumulate font styles: @b{@i{foo}} prints foo in
+% italics, not bold italics.
+%
+\def\setfontstyle#1{%
+ \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd.
+ \csname ten#1\endcsname % change the current font
+}
+
+% Select #1 fonts with the current style.
+%
+\def\selectfonts#1{\csname #1fonts\endcsname \csname\curfontstyle\endcsname}
+
+\def\rm{\fam=0 \setfontstyle{rm}}
+\def\it{\fam=\itfam \setfontstyle{it}}
+\def\sl{\fam=\slfam \setfontstyle{sl}}
+\def\bf{\fam=\bffam \setfontstyle{bf}}\def\bfstylename{bf}
+\def\tt{\fam=\ttfam \setfontstyle{tt}}
+
+% Texinfo sort of supports the sans serif font style, which plain TeX does not.
+% So we set up a \sf.
+\newfam\sffam
+\def\sf{\fam=\sffam \setfontstyle{sf}}
+\let\li = \sf % Sometimes we call it \li, not \sf.
+
+% We don't need math for this font style.
+\def\ttsl{\setfontstyle{ttsl}}
+
+% Default leading.
+\newdimen\textleading \textleading = 13.2pt
+
+% Set the baselineskip to #1, and the lineskip and strut size
+% correspondingly. There is no deep meaning behind these magic numbers
+% used as factors; they just match (closely enough) what Knuth defined.
+%
+\def\lineskipfactor{.08333}
+\def\strutheightpercent{.70833}
+\def\strutdepthpercent {.29167}
+%
+\def\setleading#1{%
+ \normalbaselineskip = #1\relax
+ \normallineskip = \lineskipfactor\normalbaselineskip
+ \normalbaselines
+ \setbox\strutbox =\hbox{%
+ \vrule width0pt height\strutheightpercent\baselineskip
+ depth \strutdepthpercent \baselineskip
+ }%
+}
+
+% Set the font macro #1 to the font named #2, adding on the
+% specified font prefix (normally `cm').
+% #3 is the font's design size, #4 is a scale factor
+\def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4}
+
+% Use cm as the default font prefix.
+% To specify the font prefix, you must define \fontprefix
+% before you read in texinfo.tex.
+\ifx\fontprefix\undefined
+\def\fontprefix{cm}
+\fi
+% Support font families that don't use the same naming scheme as CM.
+\def\rmshape{r}
+\def\rmbshape{bx} %where the normal face is bold
+\def\bfshape{b}
+\def\bxshape{bx}
+\def\ttshape{tt}
+\def\ttbshape{tt}
+\def\ttslshape{sltt}
+\def\itshape{ti}
+\def\itbshape{bxti}
+\def\slshape{sl}
+\def\slbshape{bxsl}
+\def\sfshape{ss}
+\def\sfbshape{ss}
+\def\scshape{csc}
+\def\scbshape{csc}
+
+% Text fonts (11.2pt, magstep1).
+\def\textnominalsize{11pt}
+\edef\mainmagstep{\magstephalf}
+\setfont\textrm\rmshape{10}{\mainmagstep}
+\setfont\texttt\ttshape{10}{\mainmagstep}
+\setfont\textbf\bfshape{10}{\mainmagstep}
+\setfont\textit\itshape{10}{\mainmagstep}
+\setfont\textsl\slshape{10}{\mainmagstep}
+\setfont\textsf\sfshape{10}{\mainmagstep}
+\setfont\textsc\scshape{10}{\mainmagstep}
+\setfont\textttsl\ttslshape{10}{\mainmagstep}
+\font\texti=cmmi10 scaled \mainmagstep
+\font\textsy=cmsy10 scaled \mainmagstep
+
+% A few fonts for @defun names and args.
+\setfont\defbf\bfshape{10}{\magstep1}
+\setfont\deftt\ttshape{10}{\magstep1}
+\setfont\defttsl\ttslshape{10}{\magstep1}
+\def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf}
+
+% Fonts for indices, footnotes, small examples (9pt).
+\def\smallnominalsize{9pt}
+\setfont\smallrm\rmshape{9}{1000}
+\setfont\smalltt\ttshape{9}{1000}
+\setfont\smallbf\bfshape{10}{900}
+\setfont\smallit\itshape{9}{1000}
+\setfont\smallsl\slshape{9}{1000}
+\setfont\smallsf\sfshape{9}{1000}
+\setfont\smallsc\scshape{10}{900}
+\setfont\smallttsl\ttslshape{10}{900}
+\font\smalli=cmmi9
+\font\smallsy=cmsy9
+
+% Fonts for small examples (8pt).
+\def\smallernominalsize{8pt}
+\setfont\smallerrm\rmshape{8}{1000}
+\setfont\smallertt\ttshape{8}{1000}
+\setfont\smallerbf\bfshape{10}{800}
+\setfont\smallerit\itshape{8}{1000}
+\setfont\smallersl\slshape{8}{1000}
+\setfont\smallersf\sfshape{8}{1000}
+\setfont\smallersc\scshape{10}{800}
+\setfont\smallerttsl\ttslshape{10}{800}
+\font\smalleri=cmmi8
+\font\smallersy=cmsy8
+
+% Fonts for title page (20.4pt):
+\def\titlenominalsize{20pt}
+\setfont\titlerm\rmbshape{12}{\magstep3}
+\setfont\titleit\itbshape{10}{\magstep4}
+\setfont\titlesl\slbshape{10}{\magstep4}
+\setfont\titlett\ttbshape{12}{\magstep3}
+\setfont\titlettsl\ttslshape{10}{\magstep4}
+\setfont\titlesf\sfbshape{17}{\magstep1}
+\let\titlebf=\titlerm
+\setfont\titlesc\scbshape{10}{\magstep4}
+\font\titlei=cmmi12 scaled \magstep3
+\font\titlesy=cmsy10 scaled \magstep4
+\def\authorrm{\secrm}
+\def\authortt{\sectt}
+
+% Chapter (and unnumbered) fonts (17.28pt).
+\def\chapnominalsize{17pt}
+\setfont\chaprm\rmbshape{12}{\magstep2}
+\setfont\chapit\itbshape{10}{\magstep3}
+\setfont\chapsl\slbshape{10}{\magstep3}
+\setfont\chaptt\ttbshape{12}{\magstep2}
+\setfont\chapttsl\ttslshape{10}{\magstep3}
+\setfont\chapsf\sfbshape{17}{1000}
+\let\chapbf=\chaprm
+\setfont\chapsc\scbshape{10}{\magstep3}
+\font\chapi=cmmi12 scaled \magstep2
+\font\chapsy=cmsy10 scaled \magstep3
+
+% Section fonts (14.4pt).
+\def\secnominalsize{14pt}
+\setfont\secrm\rmbshape{12}{\magstep1}
+\setfont\secit\itbshape{10}{\magstep2}
+\setfont\secsl\slbshape{10}{\magstep2}
+\setfont\sectt\ttbshape{12}{\magstep1}
+\setfont\secttsl\ttslshape{10}{\magstep2}
+\setfont\secsf\sfbshape{12}{\magstep1}
+\let\secbf\secrm
+\setfont\secsc\scbshape{10}{\magstep2}
+\font\seci=cmmi12 scaled \magstep1
+\font\secsy=cmsy10 scaled \magstep2
+
+% Subsection fonts (13.15pt).
+\def\ssecnominalsize{13pt}
+\setfont\ssecrm\rmbshape{12}{\magstephalf}
+\setfont\ssecit\itbshape{10}{1315}
+\setfont\ssecsl\slbshape{10}{1315}
+\setfont\ssectt\ttbshape{12}{\magstephalf}
+\setfont\ssecttsl\ttslshape{10}{1315}
+\setfont\ssecsf\sfbshape{12}{\magstephalf}
+\let\ssecbf\ssecrm
+\setfont\ssecsc\scbshape{10}{1315}
+\font\sseci=cmmi12 scaled \magstephalf
+\font\ssecsy=cmsy10 scaled 1315
+
+% Reduced fonts for @acro in text (10pt).
+\def\reducednominalsize{10pt}
+\setfont\reducedrm\rmshape{10}{1000}
+\setfont\reducedtt\ttshape{10}{1000}
+\setfont\reducedbf\bfshape{10}{1000}
+\setfont\reducedit\itshape{10}{1000}
+\setfont\reducedsl\slshape{10}{1000}
+\setfont\reducedsf\sfshape{10}{1000}
+\setfont\reducedsc\scshape{10}{1000}
+\setfont\reducedttsl\ttslshape{10}{1000}
+\font\reducedi=cmmi10
+\font\reducedsy=cmsy10
+
+% In order for the font changes to affect most math symbols and letters,
+% we have to define the \textfont of the standard families. Since
+% texinfo doesn't allow for producing subscripts and superscripts except
+% in the main text, we don't bother to reset \scriptfont and
+% \scriptscriptfont (which would also require loading a lot more fonts).
+%
+\def\resetmathfonts{%
+ \textfont0=\tenrm \textfont1=\teni \textfont2=\tensy
+ \textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf
+ \textfont\ttfam=\tentt \textfont\sffam=\tensf
+}
+
+% The font-changing commands redefine the meanings of \tenSTYLE, instead
+% of just \STYLE. We do this because \STYLE needs to also set the
+% current \fam for math mode. Our \STYLE (e.g., \rm) commands hardwire
+% \tenSTYLE to set the current font.
+%
+% Each font-changing command also sets the names \lsize (one size lower)
+% and \lllsize (three sizes lower). These relative commands are used in
+% the LaTeX logo and acronyms.
+%
+% This all needs generalizing, badly.
+%
+\def\textfonts{%
+ \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
+ \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
+ \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy
+ \let\tenttsl=\textttsl
+ \def\curfontsize{text}%
+ \def\lsize{reduced}\def\lllsize{smaller}%
+ \resetmathfonts \setleading{\textleading}}
+\def\titlefonts{%
+ \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
+ \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
+ \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
+ \let\tenttsl=\titlettsl
+ \def\curfontsize{title}%
+ \def\lsize{chap}\def\lllsize{subsec}%
+ \resetmathfonts \setleading{25pt}}
+\def\titlefont#1{{\titlefonts\rm #1}}
+\def\chapfonts{%
+ \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
+ \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
+ \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy
+ \let\tenttsl=\chapttsl
+ \def\curfontsize{chap}%
+ \def\lsize{sec}\def\lllsize{text}%
+ \resetmathfonts \setleading{19pt}}
+\def\secfonts{%
+ \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
+ \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
+ \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy
+ \let\tenttsl=\secttsl
+ \def\curfontsize{sec}%
+ \def\lsize{subsec}\def\lllsize{reduced}%
+ \resetmathfonts \setleading{16pt}}
+\def\subsecfonts{%
+ \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
+ \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
+ \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy
+ \let\tenttsl=\ssecttsl
+ \def\curfontsize{ssec}%
+ \def\lsize{text}\def\lllsize{small}%
+ \resetmathfonts \setleading{15pt}}
+\let\subsubsecfonts = \subsecfonts
+\def\reducedfonts{%
+ \let\tenrm=\reducedrm \let\tenit=\reducedit \let\tensl=\reducedsl
+ \let\tenbf=\reducedbf \let\tentt=\reducedtt \let\reducedcaps=\reducedsc
+ \let\tensf=\reducedsf \let\teni=\reducedi \let\tensy=\reducedsy
+ \let\tenttsl=\reducedttsl
+ \def\curfontsize{reduced}%
+ \def\lsize{small}\def\lllsize{smaller}%
+ \resetmathfonts \setleading{10.5pt}}
+\def\smallfonts{%
+ \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl
+ \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc
+ \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy
+ \let\tenttsl=\smallttsl
+ \def\curfontsize{small}%
+ \def\lsize{smaller}\def\lllsize{smaller}%
+ \resetmathfonts \setleading{10.5pt}}
+\def\smallerfonts{%
+ \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl
+ \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc
+ \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy
+ \let\tenttsl=\smallerttsl
+ \def\curfontsize{smaller}%
+ \def\lsize{smaller}\def\lllsize{smaller}%
+ \resetmathfonts \setleading{9.5pt}}
+
+% Set the fonts to use with the @small... environments.
+\let\smallexamplefonts = \smallfonts
+
+% About \smallexamplefonts. If we use \smallfonts (9pt), @smallexample
+% can fit this many characters:
+% 8.5x11=86 smallbook=72 a4=90 a5=69
+% If we use \scriptfonts (8pt), then we can fit this many characters:
+% 8.5x11=90+ smallbook=80 a4=90+ a5=77
+% For me, subjectively, the few extra characters that fit aren't worth
+% the additional smallness of 8pt. So I'm making the default 9pt.
+%
+% By the way, for comparison, here's what fits with @example (10pt):
+% 8.5x11=71 smallbook=60 a4=75 a5=58
+%
+% I wish the USA used A4 paper.
+% --karl, 24jan03.
+
+
+% Set up the default fonts, so we can use them for creating boxes.
+%
+\textfonts \rm
+
+% Define these so they can be easily changed for other fonts.
+\def\angleleft{$\langle$}
+\def\angleright{$\rangle$}
+
+% Count depth in font-changes, for error checks
+\newcount\fontdepth \fontdepth=0
+
+% Fonts for short table of contents.
+\setfont\shortcontrm\rmshape{12}{1000}
+\setfont\shortcontbf\bfshape{10}{\magstep1} % no cmb12
+\setfont\shortcontsl\slshape{12}{1000}
+\setfont\shortconttt\ttshape{12}{1000}
+
+%% Add scribe-like font environments, plus @l for inline lisp (usually sans
+%% serif) and @ii for TeX italic
+
+% \smartitalic{ARG} outputs arg in italics, followed by an italic correction
+% unless the following character is such as not to need one.
+\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else
+ \ptexslash\fi\fi\fi}
+\def\smartslanted#1{{\ifusingtt\ttsl\sl #1}\futurelet\next\smartitalicx}
+\def\smartitalic#1{{\ifusingtt\ttsl\it #1}\futurelet\next\smartitalicx}
+
+% like \smartslanted except unconditionally uses \ttsl.
+% @var is set to this for defun arguments.
+\def\ttslanted#1{{\ttsl #1}\futurelet\next\smartitalicx}
+
+% like \smartslanted except unconditionally use \sl. We never want
+% ttsl for book titles, do we?
+\def\cite#1{{\sl #1}\futurelet\next\smartitalicx}
+
+\let\i=\smartitalic
+\let\slanted=\smartslanted
+\let\var=\smartslanted
+\let\dfn=\smartslanted
+\let\emph=\smartitalic
+
+% @b, explicit bold.
+\def\b#1{{\bf #1}}
+\let\strong=\b
+
+% @sansserif, explicit sans.
+\def\sansserif#1{{\sf #1}}
+
+% We can't just use \exhyphenpenalty, because that only has effect at
+% the end of a paragraph. Restore normal hyphenation at the end of the
+% group within which \nohyphenation is presumably called.
+%
+\def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation}
+\def\restorehyphenation{\hyphenchar\font = `- }
+
+% Set sfcode to normal for the chars that usually have another value.
+% Can't use plain's \frenchspacing because it uses the `\x notation, and
+% sometimes \x has an active definition that messes things up.
+%
+\catcode`@=11
+ \def\plainfrenchspacing{%
+ \sfcode\dotChar =\@m \sfcode\questChar=\@m \sfcode\exclamChar=\@m
+ \sfcode\colonChar=\@m \sfcode\semiChar =\@m \sfcode\commaChar =\@m
+ \def\endofsentencespacefactor{1000}% for @. and friends
+ }
+ \def\plainnonfrenchspacing{%
+ \sfcode`\.3000\sfcode`\?3000\sfcode`\!3000
+ \sfcode`\:2000\sfcode`\;1500\sfcode`\,1250
+ \def\endofsentencespacefactor{3000}% for @. and friends
+ }
+\catcode`@=\other
+\def\endofsentencespacefactor{3000}% default
+
+\def\t#1{%
+ {\tt \rawbackslash \plainfrenchspacing #1}%
+ \null
+}
+\def\samp#1{`\tclose{#1}'\null}
+\setfont\keyrm\rmshape{8}{1000}
+\font\keysy=cmsy9
+\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
+ \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
+ \vbox{\hrule\kern-0.4pt
+ \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
+ \kern-0.4pt\hrule}%
+ \kern-.06em\raise0.4pt\hbox{\angleright}}}}
+% The old definition, with no lozenge:
+%\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null}
+\def\ctrl #1{{\tt \rawbackslash \hat}#1}
+
+% @file, @option are the same as @samp.
+\let\file=\samp
+\let\option=\samp
+
+% @code is a modification of @t,
+% which makes spaces the same size as normal in the surrounding text.
+\def\tclose#1{%
+ {%
+ % Change normal interword space to be same as for the current font.
+ \spaceskip = \fontdimen2\font
+ %
+ % Switch to typewriter.
+ \tt
+ %
+ % But `\ ' produces the large typewriter interword space.
+ \def\ {{\spaceskip = 0pt{} }}%
+ %
+ % Turn off hyphenation.
+ \nohyphenation
+ %
+ \rawbackslash
+ \plainfrenchspacing
+ #1%
+ }%
+ \null
+}
+
+% We *must* turn on hyphenation at `-' and `_' in @code.
+% Otherwise, it is too hard to avoid overfull hboxes
+% in the Emacs manual, the Library manual, etc.
+
+% Unfortunately, TeX uses one parameter (\hyphenchar) to control
+% both hyphenation at - and hyphenation within words.
+% We must therefore turn them both off (\tclose does that)
+% and arrange explicitly to hyphenate at a dash.
+% -- rms.
+{
+ \catcode`\-=\active
+ \catcode`\_=\active
+ %
+ \global\def\code{\begingroup
+ \catcode`\-=\active \catcode`\_=\active
+ \ifallowcodebreaks
+ \let-\codedash
+ \let_\codeunder
+ \else
+ \let-\realdash
+ \let_\realunder
+ \fi
+ \codex
+ }
+}
+
+\def\realdash{-}
+\def\codedash{-\discretionary{}{}{}}
+\def\codeunder{%
+ % this is all so @math{@code{var_name}+1} can work. In math mode, _
+ % is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.)
+ % will therefore expand the active definition of _, which is us
+ % (inside @code that is), therefore an endless loop.
+ \ifusingtt{\ifmmode
+ \mathchar"075F % class 0=ordinary, family 7=ttfam, pos 0x5F=_.
+ \else\normalunderscore \fi
+ \discretionary{}{}{}}%
+ {\_}%
+}
+\def\codex #1{\tclose{#1}\endgroup}
+
+% An additional complication: the above will allow breaks after, e.g.,
+% each of the four underscores in __typeof__. This is undesirable in
+% some manuals, especially if they don't have long identifiers in
+% general. @allowcodebreaks provides a way to control this.
+%
+\newif\ifallowcodebreaks \allowcodebreakstrue
+
+\def\keywordtrue{true}
+\def\keywordfalse{false}
+
+\parseargdef\allowcodebreaks{%
+ \def\txiarg{#1}%
+ \ifx\txiarg\keywordtrue
+ \allowcodebreakstrue
+ \else\ifx\txiarg\keywordfalse
+ \allowcodebreaksfalse
+ \else
+ \errhelp = \EMsimple
+ \errmessage{Unknown @allowcodebreaks option `\txiarg'}%
+ \fi\fi
+}
+
+% @kbd is like @code, except that if the argument is just one @key command,
+% then @kbd has no effect.
+
+% @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
+% `example' (@kbd uses ttsl only inside of @example and friends),
+% or `code' (@kbd uses normal tty font always).
+\parseargdef\kbdinputstyle{%
+ \def\txiarg{#1}%
+ \ifx\txiarg\worddistinct
+ \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
+ \else\ifx\txiarg\wordexample
+ \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
+ \else\ifx\txiarg\wordcode
+ \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
+ \else
+ \errhelp = \EMsimple
+ \errmessage{Unknown @kbdinputstyle option `\txiarg'}%
+ \fi\fi\fi
+}
+\def\worddistinct{distinct}
+\def\wordexample{example}
+\def\wordcode{code}
+
+% Default is `distinct.'
+\kbdinputstyle distinct
+
+\def\xkey{\key}
+\def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
+\ifx\one\xkey\ifx\threex\three \key{#2}%
+\else{\tclose{\kbdfont\look}}\fi
+\else{\tclose{\kbdfont\look}}\fi}
+
+% For @indicateurl, @env, @command quotes seem unnecessary, so use \code.
+\let\indicateurl=\code
+\let\env=\code
+\let\command=\code
+
+% @uref (abbreviation for `urlref') takes an optional (comma-separated)
+% second argument specifying the text to display and an optional third
+% arg as text to display instead of (rather than in addition to) the url
+% itself. First (mandatory) arg is the url. Perhaps eventually put in
+% a hypertex \special here.
+%
+\def\uref#1{\douref #1,,,\finish}
+\def\douref#1,#2,#3,#4\finish{\begingroup
+ \unsepspaces
+ \pdfurl{#1}%
+ \setbox0 = \hbox{\ignorespaces #3}%
+ \ifdim\wd0 > 0pt
+ \unhbox0 % third arg given, show only that
+ \else
+ \setbox0 = \hbox{\ignorespaces #2}%
+ \ifdim\wd0 > 0pt
+ \ifpdf
+ \unhbox0 % PDF: 2nd arg given, show only it
+ \else
+ \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
+ \fi
+ \else
+ \code{#1}% only url given, so show it
+ \fi
+ \fi
+ \endlink
+\endgroup}
+
+% @url synonym for @uref, since that's how everyone uses it.
+%
+\let\url=\uref
+
+% rms does not like angle brackets --karl, 17may97.
+% So now @email is just like @uref, unless we are pdf.
+%
+%\def\email#1{\angleleft{\tt #1}\angleright}
+\ifpdf
+ \def\email#1{\doemail#1,,\finish}
+ \def\doemail#1,#2,#3\finish{\begingroup
+ \unsepspaces
+ \pdfurl{mailto:#1}%
+ \setbox0 = \hbox{\ignorespaces #2}%
+ \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
+ \endlink
+ \endgroup}
+\else
+ \let\email=\uref
+\fi
+
+% Check if we are currently using a typewriter font. Since all the
+% Computer Modern typewriter fonts have zero interword stretch (and
+% shrink), and it is reasonable to expect all typewriter fonts to have
+% this property, we can check that font parameter.
+%
+\def\ifmonospace{\ifdim\fontdimen3\font=0pt }
+
+% Typeset a dimension, e.g., `in' or `pt'. The only reason for the
+% argument is to make the input look right: @dmn{pt} instead of @dmn{}pt.
+%
+\def\dmn#1{\thinspace #1}
+
+\def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
+
+% @l was never documented to mean ``switch to the Lisp font'',
+% and it is not used as such in any manual I can find. We need it for
+% Polish suppressed-l. --karl, 22sep96.
+%\def\l#1{{\li #1}\null}
+
+% Explicit font changes: @r, @sc, undocumented @ii.
+\def\r#1{{\rm #1}} % roman font
+\def\sc#1{{\smallcaps#1}} % smallcaps font
+\def\ii#1{{\it #1}} % italic font
+
+% @acronym for "FBI", "NATO", and the like.
+% We print this one point size smaller, since it's intended for
+% all-uppercase.
+%
+\def\acronym#1{\doacronym #1,,\finish}
+\def\doacronym#1,#2,#3\finish{%
+ {\selectfonts\lsize #1}%
+ \def\temp{#2}%
+ \ifx\temp\empty \else
+ \space ({\unsepspaces \ignorespaces \temp \unskip})%
+ \fi
+}
+
+% @abbr for "Comput. J." and the like.
+% No font change, but don't do end-of-sentence spacing.
+%
+\def\abbr#1{\doabbr #1,,\finish}
+\def\doabbr#1,#2,#3\finish{%
+ {\plainfrenchspacing #1}%
+ \def\temp{#2}%
+ \ifx\temp\empty \else
+ \space ({\unsepspaces \ignorespaces \temp \unskip})%
+ \fi
+}
+
+% @pounds{} is a sterling sign, which Knuth put in the CM italic font.
+%
+\def\pounds{{\it\$}}
+
+% @euro{} comes from a separate font, depending on the current style.
+% We use the free feym* fonts from the eurosym package by Henrik
+% Theiling, which support regular, slanted, bold and bold slanted (and
+% "outlined" (blackboard board, sort of) versions, which we don't need).
+% It is available from http://www.ctan.org/tex-archive/fonts/eurosym.
+%
+% Although only regular is the truly official Euro symbol, we ignore
+% that. The Euro is designed to be slightly taller than the regular
+% font height.
+%
+% feymr - regular
+% feymo - slanted
+% feybr - bold
+% feybo - bold slanted
+%
+% There is no good (free) typewriter version, to my knowledge.
+% A feymr10 euro is ~7.3pt wide, while a normal cmtt10 char is ~5.25pt wide.
+% Hmm.
+%
+% Also doesn't work in math. Do we need to do math with euro symbols?
+% Hope not.
+%
+%
+\def\euro{{\eurofont e}}
+\def\eurofont{%
+ % We set the font at each command, rather than predefining it in
+ % \textfonts and the other font-switching commands, so that
+ % installations which never need the symbol don't have to have the
+ % font installed.
+ %
+ % There is only one designed size (nominal 10pt), so we always scale
+ % that to the current nominal size.
+ %
+ % By the way, simply using "at 1em" works for cmr10 and the like, but
+ % does not work for cmbx10 and other extended/shrunken fonts.
+ %
+ \def\eurosize{\csname\curfontsize nominalsize\endcsname}%
+ %
+ \ifx\curfontstyle\bfstylename
+ % bold:
+ \font\thiseurofont = \ifusingit{feybo10}{feybr10} at \eurosize
+ \else
+ % regular:
+ \font\thiseurofont = \ifusingit{feymo10}{feymr10} at \eurosize
+ \fi
+ \thiseurofont
+}
+
+% @registeredsymbol - R in a circle. The font for the R should really
+% be smaller yet, but lllsize is the best we can do for now.
+% Adapted from the plain.tex definition of \copyright.
+%
+\def\registeredsymbol{%
+ $^{{\ooalign{\hfil\raise.07ex\hbox{\selectfonts\lllsize R}%
+ \hfil\crcr\Orb}}%
+ }$%
+}
+
+% Laurent Siebenmann reports \Orb undefined with:
+% Textures 1.7.7 (preloaded format=plain 93.10.14) (68K) 16 APR 2004 02:38
+% so we'll define it if necessary.
+%
+\ifx\Orb\undefined
+\def\Orb{\mathhexbox20D}
+\fi
+
+
+\message{page headings,}
+
+\newskip\titlepagetopglue \titlepagetopglue = 1.5in
+\newskip\titlepagebottomglue \titlepagebottomglue = 2pc
+
+% First the title page. Must do @settitle before @titlepage.
+\newif\ifseenauthor
+\newif\iffinishedtitlepage
+
+% Do an implicit @contents or @shortcontents after @end titlepage if the
+% user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
+%
+\newif\ifsetcontentsaftertitlepage
+ \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
+\newif\ifsetshortcontentsaftertitlepage
+ \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
+
+\parseargdef\shorttitlepage{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}%
+ \endgroup\page\hbox{}\page}
+
+\envdef\titlepage{%
+ % Open one extra group, as we want to close it in the middle of \Etitlepage.
+ \begingroup
+ \parindent=0pt \textfonts
+ % Leave some space at the very top of the page.
+ \vglue\titlepagetopglue
+ % No rule at page bottom unless we print one at the top with @title.
+ \finishedtitlepagetrue
+ %
+ % Most title ``pages'' are actually two pages long, with space
+ % at the top of the second. We don't want the ragged left on the second.
+ \let\oldpage = \page
+ \def\page{%
+ \iffinishedtitlepage\else
+ \finishtitlepage
+ \fi
+ \let\page = \oldpage
+ \page
+ \null
+ }%
+}
+
+\def\Etitlepage{%
+ \iffinishedtitlepage\else
+ \finishtitlepage
+ \fi
+ % It is important to do the page break before ending the group,
+ % because the headline and footline are only empty inside the group.
+ % If we use the new definition of \page, we always get a blank page
+ % after the title page, which we certainly don't want.
+ \oldpage
+ \endgroup
+ %
+ % Need this before the \...aftertitlepage checks so that if they are
+ % in effect the toc pages will come out with page numbers.
+ \HEADINGSon
+ %
+ % If they want short, they certainly want long too.
+ \ifsetshortcontentsaftertitlepage
+ \shortcontents
+ \contents
+ \global\let\shortcontents = \relax
+ \global\let\contents = \relax
+ \fi
+ %
+ \ifsetcontentsaftertitlepage
+ \contents
+ \global\let\contents = \relax
+ \global\let\shortcontents = \relax
+ \fi
+}
+
+\def\finishtitlepage{%
+ \vskip4pt \hrule height 2pt width \hsize
+ \vskip\titlepagebottomglue
+ \finishedtitlepagetrue
+}
+
+%%% Macros to be used within @titlepage:
+
+\let\subtitlerm=\tenrm
+\def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}
+
+\def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines
+ \let\tt=\authortt}
+
+\parseargdef\title{%
+ \checkenv\titlepage
+ \leftline{\titlefonts\rm #1}
+ % print a rule at the page bottom also.
+ \finishedtitlepagefalse
+ \vskip4pt \hrule height 4pt width \hsize \vskip4pt
+}
+
+\parseargdef\subtitle{%
+ \checkenv\titlepage
+ {\subtitlefont \rightline{#1}}%
+}
+
+% @author should come last, but may come many times.
+% It can also be used inside @quotation.
+%
+\parseargdef\author{%
+ \def\temp{\quotation}%
+ \ifx\thisenv\temp
+ \def\quotationauthor{#1}% printed in \Equotation.
+ \else
+ \checkenv\titlepage
+ \ifseenauthor\else \vskip 0pt plus 1filll \seenauthortrue \fi
+ {\authorfont \leftline{#1}}%
+ \fi
+}
+
+
+%%% Set up page headings and footings.
+
+\let\thispage=\folio
+
+\newtoks\evenheadline % headline on even pages
+\newtoks\oddheadline % headline on odd pages
+\newtoks\evenfootline % footline on even pages
+\newtoks\oddfootline % footline on odd pages
+
+% Now make TeX use those variables
+\headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
+ \else \the\evenheadline \fi}}
+\footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
+ \else \the\evenfootline \fi}\HEADINGShook}
+\let\HEADINGShook=\relax
+
+% Commands to set those variables.
+% For example, this is what @headings on does
+% @evenheading @thistitle|@thispage|@thischapter
+% @oddheading @thischapter|@thispage|@thistitle
+% @evenfooting @thisfile||
+% @oddfooting ||@thisfile
+
+
+\def\evenheading{\parsearg\evenheadingxxx}
+\def\evenheadingxxx #1{\evenheadingyyy #1\|\|\|\|\finish}
+\def\evenheadingyyy #1\|#2\|#3\|#4\finish{%
+\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
+
+\def\oddheading{\parsearg\oddheadingxxx}
+\def\oddheadingxxx #1{\oddheadingyyy #1\|\|\|\|\finish}
+\def\oddheadingyyy #1\|#2\|#3\|#4\finish{%
+\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
+
+\parseargdef\everyheading{\oddheadingxxx{#1}\evenheadingxxx{#1}}%
+
+\def\evenfooting{\parsearg\evenfootingxxx}
+\def\evenfootingxxx #1{\evenfootingyyy #1\|\|\|\|\finish}
+\def\evenfootingyyy #1\|#2\|#3\|#4\finish{%
+\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
+
+\def\oddfooting{\parsearg\oddfootingxxx}
+\def\oddfootingxxx #1{\oddfootingyyy #1\|\|\|\|\finish}
+\def\oddfootingyyy #1\|#2\|#3\|#4\finish{%
+ \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}%
+ %
+ % Leave some space for the footline. Hopefully ok to assume
+ % @evenfooting will not be used by itself.
+ \global\advance\pageheight by -\baselineskip
+ \global\advance\vsize by -\baselineskip
+}
+
+\parseargdef\everyfooting{\oddfootingxxx{#1}\evenfootingxxx{#1}}
+
+
+% @headings double turns headings on for double-sided printing.
+% @headings single turns headings on for single-sided printing.
+% @headings off turns them off.
+% @headings on same as @headings double, retained for compatibility.
+% @headings after turns on double-sided headings after this page.
+% @headings doubleafter turns on double-sided headings after this page.
+% @headings singleafter turns on single-sided headings after this page.
+% By default, they are off at the start of a document,
+% and turned `on' after @end titlepage.
+
+\def\headings #1 {\csname HEADINGS#1\endcsname}
+
+\def\HEADINGSoff{%
+\global\evenheadline={\hfil} \global\evenfootline={\hfil}
+\global\oddheadline={\hfil} \global\oddfootline={\hfil}}
+\HEADINGSoff
+% When we turn headings on, set the page number to 1.
+% For double-sided printing, put current file name in lower left corner,
+% chapter name on inside top of right hand pages, document
+% title on inside top of left hand pages, and page numbers on outside top
+% edge of all pages.
+\def\HEADINGSdouble{%
+\global\pageno=1
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\folio\hfil\thistitle}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chapoddpage
+}
+\let\contentsalignmacro = \chappager
+
+% For single-sided printing, chapter title goes across top left of page,
+% page number on top right.
+\def\HEADINGSsingle{%
+\global\pageno=1
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\thischapter\hfil\folio}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chappager
+}
+\def\HEADINGSon{\HEADINGSdouble}
+
+\def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
+\let\HEADINGSdoubleafter=\HEADINGSafter
+\def\HEADINGSdoublex{%
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\folio\hfil\thistitle}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chapoddpage
+}
+
+\def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
+\def\HEADINGSsinglex{%
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\thischapter\hfil\folio}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chappager
+}
+
+% Subroutines used in generating headings
+% This produces Day Month Year style of output.
+% Only define if not already defined, in case a txi-??.tex file has set
+% up a different format (e.g., txi-cs.tex does this).
+\ifx\today\undefined
+\def\today{%
+ \number\day\space
+ \ifcase\month
+ \or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr
+ \or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug
+ \or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec
+ \fi
+ \space\number\year}
+\fi
+
+% @settitle line... specifies the title of the document, for headings.
+% It generates no output of its own.
+\def\thistitle{\putwordNoTitle}
+\def\settitle{\parsearg{\gdef\thistitle}}
+
+
+\message{tables,}
+% Tables -- @table, @ftable, @vtable, @item(x).
+
+% default indentation of table text
+\newdimen\tableindent \tableindent=.8in
+% default indentation of @itemize and @enumerate text
+\newdimen\itemindent \itemindent=.3in
+% margin between end of table item and start of table text.
+\newdimen\itemmargin \itemmargin=.1in
+
+% used internally for \itemindent minus \itemmargin
+\newdimen\itemmax
+
+% Note @table, @ftable, and @vtable define @item, @itemx, etc., with
+% these defs.
+% They also define \itemindex
+% to index the item name in whatever manner is desired (perhaps none).
+
+\newif\ifitemxneedsnegativevskip
+
+\def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
+
+\def\internalBitem{\smallbreak \parsearg\itemzzz}
+\def\internalBitemx{\itemxpar \parsearg\itemzzz}
+
+\def\itemzzz #1{\begingroup %
+ \advance\hsize by -\rightskip
+ \advance\hsize by -\tableindent
+ \setbox0=\hbox{\itemindicate{#1}}%
+ \itemindex{#1}%
+ \nobreak % This prevents a break before @itemx.
+ %
+ % If the item text does not fit in the space we have, put it on a line
+ % by itself, and do not allow a page break either before or after that
+ % line. We do not start a paragraph here because then if the next
+ % command is, e.g., @kindex, the whatsit would get put into the
+ % horizontal list on a line by itself, resulting in extra blank space.
+ \ifdim \wd0>\itemmax
+ %
+ % Make this a paragraph so we get the \parskip glue and wrapping,
+ % but leave it ragged-right.
+ \begingroup
+ \advance\leftskip by-\tableindent
+ \advance\hsize by\tableindent
+ \advance\rightskip by0pt plus1fil
+ \leavevmode\unhbox0\par
+ \endgroup
+ %
+ % We're going to be starting a paragraph, but we don't want the
+ % \parskip glue -- logically it's part of the @item we just started.
+ \nobreak \vskip-\parskip
+ %
+ % Stop a page break at the \parskip glue coming up. However, if
+ % what follows is an environment such as @example, there will be no
+ % \parskip glue; then the negative vskip we just inserted would
+ % cause the example and the item to crash together. So we use this
+ % bizarre value of 10001 as a signal to \aboveenvbreak to insert
+ % \parskip glue after all. Section titles are handled this way also.
+ %
+ \penalty 10001
+ \endgroup
+ \itemxneedsnegativevskipfalse
+ \else
+ % The item text fits into the space. Start a paragraph, so that the
+ % following text (if any) will end up on the same line.
+ \noindent
+ % Do this with kerns and \unhbox so that if there is a footnote in
+ % the item text, it can migrate to the main vertical list and
+ % eventually be printed.
+ \nobreak\kern-\tableindent
+ \dimen0 = \itemmax \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0
+ \unhbox0
+ \nobreak\kern\dimen0
+ \endgroup
+ \itemxneedsnegativevskiptrue
+ \fi
+}
+
+\def\item{\errmessage{@item while not in a list environment}}
+\def\itemx{\errmessage{@itemx while not in a list environment}}
+
+% @table, @ftable, @vtable.
+\envdef\table{%
+ \let\itemindex\gobble
+ \tablecheck{table}%
+}
+\envdef\ftable{%
+ \def\itemindex ##1{\doind {fn}{\code{##1}}}%
+ \tablecheck{ftable}%
+}
+\envdef\vtable{%
+ \def\itemindex ##1{\doind {vr}{\code{##1}}}%
+ \tablecheck{vtable}%
+}
+\def\tablecheck#1{%
+ \ifnum \the\catcode`\^^M=\active
+ \endgroup
+ \errmessage{This command won't work in this context; perhaps the problem is
+ that we are \inenvironment\thisenv}%
+ \def\next{\doignore{#1}}%
+ \else
+ \let\next\tablex
+ \fi
+ \next
+}
+\def\tablex#1{%
+ \def\itemindicate{#1}%
+ \parsearg\tabley
+}
+\def\tabley#1{%
+ {%
+ \makevalueexpandable
+ \edef\temp{\noexpand\tablez #1\space\space\space}%
+ \expandafter
+ }\temp \endtablez
+}
+\def\tablez #1 #2 #3 #4\endtablez{%
+ \aboveenvbreak
+ \ifnum 0#1>0 \advance \leftskip by #1\mil \fi
+ \ifnum 0#2>0 \tableindent=#2\mil \fi
+ \ifnum 0#3>0 \advance \rightskip by #3\mil \fi
+ \itemmax=\tableindent
+ \advance \itemmax by -\itemmargin
+ \advance \leftskip by \tableindent
+ \exdentamount=\tableindent
+ \parindent = 0pt
+ \parskip = \smallskipamount
+ \ifdim \parskip=0pt \parskip=2pt \fi
+ \let\item = \internalBitem
+ \let\itemx = \internalBitemx
+}
+\def\Etable{\endgraf\afterenvbreak}
+\let\Eftable\Etable
+\let\Evtable\Etable
+\let\Eitemize\Etable
+\let\Eenumerate\Etable
+
+% This is the counter used by @enumerate, which is really @itemize
+
+\newcount \itemno
+
+\envdef\itemize{\parsearg\doitemize}
+
+\def\doitemize#1{%
+ \aboveenvbreak
+ \itemmax=\itemindent
+ \advance\itemmax by -\itemmargin
+ \advance\leftskip by \itemindent
+ \exdentamount=\itemindent
+ \parindent=0pt
+ \parskip=\smallskipamount
+ \ifdim\parskip=0pt \parskip=2pt \fi
+ \def\itemcontents{#1}%
+ % @itemize with no arg is equivalent to @itemize @bullet.
+ \ifx\itemcontents\empty\def\itemcontents{\bullet}\fi
+ \let\item=\itemizeitem
+}
+
+% Definition of @item while inside @itemize and @enumerate.
+%
+\def\itemizeitem{%
+ \advance\itemno by 1 % for enumerations
+ {\let\par=\endgraf \smallbreak}% reasonable place to break
+ {%
+ % If the document has an @itemize directly after a section title, a
+ % \nobreak will be last on the list, and \sectionheading will have
+ % done a \vskip-\parskip. In that case, we don't want to zero
+ % parskip, or the item text will crash with the heading. On the
+ % other hand, when there is normal text preceding the item (as there
+ % usually is), we do want to zero parskip, or there would be too much
+ % space. In that case, we won't have a \nobreak before. At least
+ % that's the theory.
+ \ifnum\lastpenalty<10000 \parskip=0in \fi
+ \noindent
+ \hbox to 0pt{\hss \itemcontents \kern\itemmargin}%
+ \vadjust{\penalty 1200}}% not good to break after first line of item.
+ \flushcr
+}
+
+% \splitoff TOKENS\endmark defines \first to be the first token in
+% TOKENS, and \rest to be the remainder.
+%
+\def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
+
+% Allow an optional argument of an uppercase letter, lowercase letter,
+% or number, to specify the first label in the enumerated list. No
+% argument is the same as `1'.
+%
+\envparseargdef\enumerate{\enumeratey #1 \endenumeratey}
+\def\enumeratey #1 #2\endenumeratey{%
+ % If we were given no argument, pretend we were given `1'.
+ \def\thearg{#1}%
+ \ifx\thearg\empty \def\thearg{1}\fi
+ %
+ % Detect if the argument is a single token. If so, it might be a
+ % letter. Otherwise, the only valid thing it can be is a number.
+ % (We will always have one token, because of the test we just made.
+ % This is a good thing, since \splitoff doesn't work given nothing at
+ % all -- the first parameter is undelimited.)
+ \expandafter\splitoff\thearg\endmark
+ \ifx\rest\empty
+ % Only one token in the argument. It could still be anything.
+ % A ``lowercase letter'' is one whose \lccode is nonzero.
+ % An ``uppercase letter'' is one whose \lccode is both nonzero, and
+ % not equal to itself.
+ % Otherwise, we assume it's a number.
+ %
+ % We need the \relax at the end of the \ifnum lines to stop TeX from
+ % continuing to look for a <number>.
+ %
+ \ifnum\lccode\expandafter`\thearg=0\relax
+ \numericenumerate % a number (we hope)
+ \else
+ % It's a letter.
+ \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax
+ \lowercaseenumerate % lowercase letter
+ \else
+ \uppercaseenumerate % uppercase letter
+ \fi
+ \fi
+ \else
+ % Multiple tokens in the argument. We hope it's a number.
+ \numericenumerate
+ \fi
+}
+
+% An @enumerate whose labels are integers. The starting integer is
+% given in \thearg.
+%
+\def\numericenumerate{%
+ \itemno = \thearg
+ \startenumeration{\the\itemno}%
+}
+
+% The starting (lowercase) letter is in \thearg.
+\def\lowercaseenumerate{%
+ \itemno = \expandafter`\thearg
+ \startenumeration{%
+ % Be sure we're not beyond the end of the alphabet.
+ \ifnum\itemno=0
+ \errmessage{No more lowercase letters in @enumerate; get a bigger
+ alphabet}%
+ \fi
+ \char\lccode\itemno
+ }%
+}
+
+% The starting (uppercase) letter is in \thearg.
+\def\uppercaseenumerate{%
+ \itemno = \expandafter`\thearg
+ \startenumeration{%
+ % Be sure we're not beyond the end of the alphabet.
+ \ifnum\itemno=0
+ \errmessage{No more uppercase letters in @enumerate; get a bigger
+ alphabet}
+ \fi
+ \char\uccode\itemno
+ }%
+}
+
+% Call \doitemize, adding a period to the first argument and supplying the
+% common last two arguments. Also subtract one from the initial value in
+% \itemno, since @item increments \itemno.
+%
+\def\startenumeration#1{%
+ \advance\itemno by -1
+ \doitemize{#1.}\flushcr
+}
+
+% @alphaenumerate and @capsenumerate are abbreviations for giving an arg
+% to @enumerate.
+%
+\def\alphaenumerate{\enumerate{a}}
+\def\capsenumerate{\enumerate{A}}
+\def\Ealphaenumerate{\Eenumerate}
+\def\Ecapsenumerate{\Eenumerate}
+
+
+% @multitable macros
+% Amy Hendrickson, 8/18/94, 3/6/96
+%
+% @multitable ... @end multitable will make as many columns as desired.
+% Contents of each column will wrap at width given in preamble. Width
+% can be specified either with sample text given in a template line,
+% or in percent of \hsize, the current width of text on page.
+
+% Table can continue over pages but will only break between lines.
+
+% To make preamble:
+%
+% Either define widths of columns in terms of percent of \hsize:
+% @multitable @columnfractions .25 .3 .45
+% @item ...
+%
+% Numbers following @columnfractions are the percent of the total
+% current hsize to be used for each column. You may use as many
+% columns as desired.
+
+
+% Or use a template:
+% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
+% @item ...
+% using the widest term desired in each column.
+
+% Each new table line starts with @item, each subsequent new column
+% starts with @tab. Empty columns may be produced by supplying @tab's
+% with nothing between them for as many times as empty columns are needed,
+% ie, @tab@tab@tab will produce two empty columns.
+
+% @item, @tab do not need to be on their own lines, but it will not hurt
+% if they are.
+
+% Sample multitable:
+
+% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
+% @item first col stuff @tab second col stuff @tab third col
+% @item
+% first col stuff
+% @tab
+% second col stuff
+% @tab
+% third col
+% @item first col stuff @tab second col stuff
+% @tab Many paragraphs of text may be used in any column.
+%
+% They will wrap at the width determined by the template.
+% @item@tab@tab This will be in third column.
+% @end multitable
+
+% Default dimensions may be reset by user.
+% @multitableparskip is vertical space between paragraphs in table.
+% @multitableparindent is paragraph indent in table.
+% @multitablecolmargin is horizontal space to be left between columns.
+% @multitablelinespace is space to leave between table items, baseline
+% to baseline.
+% 0pt means it depends on current normal line spacing.
+%
+\newskip\multitableparskip
+\newskip\multitableparindent
+\newdimen\multitablecolspace
+\newskip\multitablelinespace
+\multitableparskip=0pt
+\multitableparindent=6pt
+\multitablecolspace=12pt
+\multitablelinespace=0pt
+
+% Macros used to set up halign preamble:
+%
+\let\endsetuptable\relax
+\def\xendsetuptable{\endsetuptable}
+\let\columnfractions\relax
+\def\xcolumnfractions{\columnfractions}
+\newif\ifsetpercent
+
+% #1 is the @columnfraction, usually a decimal number like .5, but might
+% be just 1. We just use it, whatever it is.
+%
+\def\pickupwholefraction#1 {%
+ \global\advance\colcount by 1
+ \expandafter\xdef\csname col\the\colcount\endcsname{#1\hsize}%
+ \setuptable
+}
+
+\newcount\colcount
+\def\setuptable#1{%
+ \def\firstarg{#1}%
+ \ifx\firstarg\xendsetuptable
+ \let\go = \relax
+ \else
+ \ifx\firstarg\xcolumnfractions
+ \global\setpercenttrue
+ \else
+ \ifsetpercent
+ \let\go\pickupwholefraction
+ \else
+ \global\advance\colcount by 1
+ \setbox0=\hbox{#1\unskip\space}% Add a normal word space as a
+ % separator; typically that is always in the input, anyway.
+ \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
+ \fi
+ \fi
+ \ifx\go\pickupwholefraction
+ % Put the argument back for the \pickupwholefraction call, so
+ % we'll always have a period there to be parsed.
+ \def\go{\pickupwholefraction#1}%
+ \else
+ \let\go = \setuptable
+ \fi%
+ \fi
+ \go
+}
+
+% multitable-only commands.
+%
+% @headitem starts a heading row, which we typeset in bold.
+% Assignments have to be global since we are inside the implicit group
+% of an alignment entry. Note that \everycr resets \everytab.
+\def\headitem{\checkenv\multitable \crcr \global\everytab={\bf}\the\everytab}%
+%
+% A \tab used to include \hskip1sp. But then the space in a template
+% line is not enough. That is bad. So let's go back to just `&' until
+% we encounter the problem it was intended to solve again.
+% --karl, nathan@acm.org, 20apr99.
+\def\tab{\checkenv\multitable &\the\everytab}%
+
+% @multitable ... @end multitable definitions:
+%
+\newtoks\everytab % insert after every tab.
+%
+\envdef\multitable{%
+ \vskip\parskip
+ \startsavinginserts
+ %
+ % @item within a multitable starts a normal row.
+ % We use \def instead of \let so that if one of the multitable entries
+ % contains an @itemize, we don't choke on the \item (seen as \crcr aka
+ % \endtemplate) expanding \doitemize.
+ \def\item{\crcr}%
+ %
+ \tolerance=9500
+ \hbadness=9500
+ \setmultitablespacing
+ \parskip=\multitableparskip
+ \parindent=\multitableparindent
+ \overfullrule=0pt
+ \global\colcount=0
+ %
+ \everycr = {%
+ \noalign{%
+ \global\everytab={}%
+ \global\colcount=0 % Reset the column counter.
+ % Check for saved footnotes, etc.
+ \checkinserts
+ % Keeps underfull box messages off when table breaks over pages.
+ %\filbreak
+ % Maybe so, but it also creates really weird page breaks when the
+ % table breaks over pages. Wouldn't \vfil be better? Wait until the
+ % problem manifests itself, so it can be fixed for real --karl.
+ }%
+ }%
+ %
+ \parsearg\domultitable
+}
+\def\domultitable#1{%
+ % To parse everything between @multitable and @item:
+ \setuptable#1 \endsetuptable
+ %
+ % This preamble sets up a generic column definition, which will
+ % be used as many times as user calls for columns.
+ % \vtop will set a single line and will also let text wrap and
+ % continue for many paragraphs if desired.
+ \halign\bgroup &%
+ \global\advance\colcount by 1
+ \multistrut
+ \vtop{%
+ % Use the current \colcount to find the correct column width:
+ \hsize=\expandafter\csname col\the\colcount\endcsname
+ %
+ % In order to keep entries from bumping into each other
+ % we will add a \leftskip of \multitablecolspace to all columns after
+ % the first one.
+ %
+ % If a template has been used, we will add \multitablecolspace
+ % to the width of each template entry.
+ %
+ % If the user has set preamble in terms of percent of \hsize we will
+ % use that dimension as the width of the column, and the \leftskip
+ % will keep entries from bumping into each other. Table will start at
+ % left margin and final column will justify at right margin.
+ %
+ % Make sure we don't inherit \rightskip from the outer environment.
+ \rightskip=0pt
+ \ifnum\colcount=1
+ % The first column will be indented with the surrounding text.
+ \advance\hsize by\leftskip
+ \else
+ \ifsetpercent \else
+ % If user has not set preamble in terms of percent of \hsize
+ % we will advance \hsize by \multitablecolspace.
+ \advance\hsize by \multitablecolspace
+ \fi
+ % In either case we will make \leftskip=\multitablecolspace:
+ \leftskip=\multitablecolspace
+ \fi
+ % Ignoring space at the beginning and end avoids an occasional spurious
+ % blank line, when TeX decides to break the line at the space before the
+ % box from the multistrut, so the strut ends up on a line by itself.
+ % For example:
+ % @multitable @columnfractions .11 .89
+ % @item @code{#}
+ % @tab Legal holiday which is valid in major parts of the whole country.
+ % Is automatically provided with highlighting sequences respectively
+ % marking characters.
+ \noindent\ignorespaces##\unskip\multistrut
+ }\cr
+}
+\def\Emultitable{%
+ \crcr
+ \egroup % end the \halign
+ \global\setpercentfalse
+}
+
+\def\setmultitablespacing{%
+ \def\multistrut{\strut}% just use the standard line spacing
+ %
+ % Compute \multitablelinespace (if not defined by user) for use in
+ % \multitableparskip calculation. We used define \multistrut based on
+ % this, but (ironically) that caused the spacing to be off.
+ % See bug-texinfo report from Werner Lemberg, 31 Oct 2004 12:52:20 +0100.
+\ifdim\multitablelinespace=0pt
+\setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip
+\global\advance\multitablelinespace by-\ht0
+\fi
+%% Test to see if parskip is larger than space between lines of
+%% table. If not, do nothing.
+%% If so, set to same dimension as multitablelinespace.
+\ifdim\multitableparskip>\multitablelinespace
+\global\multitableparskip=\multitablelinespace
+\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
+ %% than skip between lines in the table.
+\fi%
+\ifdim\multitableparskip=0pt
+\global\multitableparskip=\multitablelinespace
+\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
+ %% than skip between lines in the table.
+\fi}
+
+
+\message{conditionals,}
+
+% @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotplaintext,
+% @ifnotxml always succeed. They currently do nothing; we don't
+% attempt to check whether the conditionals are properly nested. But we
+% have to remember that they are conditionals, so that @end doesn't
+% attempt to close an environment group.
+%
+\def\makecond#1{%
+ \expandafter\let\csname #1\endcsname = \relax
+ \expandafter\let\csname iscond.#1\endcsname = 1
+}
+\makecond{iftex}
+\makecond{ifnotdocbook}
+\makecond{ifnothtml}
+\makecond{ifnotinfo}
+\makecond{ifnotplaintext}
+\makecond{ifnotxml}
+
+% Ignore @ignore, @ifhtml, @ifinfo, and the like.
+%
+\def\direntry{\doignore{direntry}}
+\def\documentdescription{\doignore{documentdescription}}
+\def\docbook{\doignore{docbook}}
+\def\html{\doignore{html}}
+\def\ifdocbook{\doignore{ifdocbook}}
+\def\ifhtml{\doignore{ifhtml}}
+\def\ifinfo{\doignore{ifinfo}}
+\def\ifnottex{\doignore{ifnottex}}
+\def\ifplaintext{\doignore{ifplaintext}}
+\def\ifxml{\doignore{ifxml}}
+\def\ignore{\doignore{ignore}}
+\def\menu{\doignore{menu}}
+\def\xml{\doignore{xml}}
+
+% Ignore text until a line `@end #1', keeping track of nested conditionals.
+%
+% A count to remember the depth of nesting.
+\newcount\doignorecount
+
+\def\doignore#1{\begingroup
+ % Scan in ``verbatim'' mode:
+ \catcode`\@ = \other
+ \catcode`\{ = \other
+ \catcode`\} = \other
+ %
+ % Make sure that spaces turn into tokens that match what \doignoretext wants.
+ \spaceisspace
+ %
+ % Count number of #1's that we've seen.
+ \doignorecount = 0
+ %
+ % Swallow text until we reach the matching `@end #1'.
+ \dodoignore{#1}%
+}
+
+{ \catcode`_=11 % We want to use \_STOP_ which cannot appear in texinfo source.
+ \obeylines %
+ %
+ \gdef\dodoignore#1{%
+ % #1 contains the command name as a string, e.g., `ifinfo'.
+ %
+ % Define a command to find the next `@end #1', which must be on a line
+ % by itself.
+ \long\def\doignoretext##1^^M@end #1{\doignoretextyyy##1^^M@#1\_STOP_}%
+ % And this command to find another #1 command, at the beginning of a
+ % line. (Otherwise, we would consider a line `@c @ifset', for
+ % example, to count as an @ifset for nesting.)
+ \long\def\doignoretextyyy##1^^M@#1##2\_STOP_{\doignoreyyy{##2}\_STOP_}%
+ %
+ % And now expand that command.
+ \obeylines %
+ \doignoretext ^^M%
+ }%
+}
+
+\def\doignoreyyy#1{%
+ \def\temp{#1}%
+ \ifx\temp\empty % Nothing found.
+ \let\next\doignoretextzzz
+ \else % Found a nested condition, ...
+ \advance\doignorecount by 1
+ \let\next\doignoretextyyy % ..., look for another.
+ % If we're here, #1 ends with ^^M\ifinfo (for example).
+ \fi
+ \next #1% the token \_STOP_ is present just after this macro.
+}
+
+% We have to swallow the remaining "\_STOP_".
+%
+\def\doignoretextzzz#1{%
+ \ifnum\doignorecount = 0 % We have just found the outermost @end.
+ \let\next\enddoignore
+ \else % Still inside a nested condition.
+ \advance\doignorecount by -1
+ \let\next\doignoretext % Look for the next @end.
+ \fi
+ \next
+}
+
+% Finish off ignored text.
+\def\enddoignore{\endgroup\ignorespaces}
+
+
+% @set VAR sets the variable VAR to an empty value.
+% @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
+%
+% Since we want to separate VAR from REST-OF-LINE (which might be
+% empty), we can't just use \parsearg; we have to insert a space of our
+% own to delimit the rest of the line, and then take it out again if we
+% didn't need it.
+% We rely on the fact that \parsearg sets \catcode`\ =10.
+%
+\parseargdef\set{\setyyy#1 \endsetyyy}
+\def\setyyy#1 #2\endsetyyy{%
+ {%
+ \makevalueexpandable
+ \def\temp{#2}%
+ \edef\next{\gdef\makecsname{SET#1}}%
+ \ifx\temp\empty
+ \next{}%
+ \else
+ \setzzz#2\endsetzzz
+ \fi
+ }%
+}
+% Remove the trailing space \setxxx inserted.
+\def\setzzz#1 \endsetzzz{\next{#1}}
+
+% @clear VAR clears (i.e., unsets) the variable VAR.
+%
+\parseargdef\clear{%
+ {%
+ \makevalueexpandable
+ \global\expandafter\let\csname SET#1\endcsname=\relax
+ }%
+}
+
+% @value{foo} gets the text saved in variable foo.
+\def\value{\begingroup\makevalueexpandable\valuexxx}
+\def\valuexxx#1{\expandablevalue{#1}\endgroup}
+{
+ \catcode`\- = \active \catcode`\_ = \active
+ %
+ \gdef\makevalueexpandable{%
+ \let\value = \expandablevalue
+ % We don't want these characters active, ...
+ \catcode`\-=\other \catcode`\_=\other
+ % ..., but we might end up with active ones in the argument if
+ % we're called from @code, as @code{@value{foo-bar_}}, though.
+ % So \let them to their normal equivalents.
+ \let-\realdash \let_\normalunderscore
+ }
+}
+
+% We have this subroutine so that we can handle at least some @value's
+% properly in indexes (we call \makevalueexpandable in \indexdummies).
+% The command has to be fully expandable (if the variable is set), since
+% the result winds up in the index file. This means that if the
+% variable's value contains other Texinfo commands, it's almost certain
+% it will fail (although perhaps we could fix that with sufficient work
+% to do a one-level expansion on the result, instead of complete).
+%
+\def\expandablevalue#1{%
+ \expandafter\ifx\csname SET#1\endcsname\relax
+ {[No value for ``#1'']}%
+ \message{Variable `#1', used in @value, is not set.}%
+ \else
+ \csname SET#1\endcsname
+ \fi
+}
+
+% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
+% with @set.
+%
+% To get special treatment of `@end ifset,' call \makeond and the redefine.
+%
+\makecond{ifset}
+\def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}}
+\def\doifset#1#2{%
+ {%
+ \makevalueexpandable
+ \let\next=\empty
+ \expandafter\ifx\csname SET#2\endcsname\relax
+ #1% If not set, redefine \next.
+ \fi
+ \expandafter
+ }\next
+}
+\def\ifsetfail{\doignore{ifset}}
+
+% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
+% defined with @set, or has been undefined with @clear.
+%
+% The `\else' inside the `\doifset' parameter is a trick to reuse the
+% above code: if the variable is not set, do nothing, if it is set,
+% then redefine \next to \ifclearfail.
+%
+\makecond{ifclear}
+\def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}}
+\def\ifclearfail{\doignore{ifclear}}
+
+% @dircategory CATEGORY -- specify a category of the dir file
+% which this file should belong to. Ignore this in TeX.
+\let\dircategory=\comment
+
+% @defininfoenclose.
+\let\definfoenclose=\comment
+
+
+\message{indexing,}
+% Index generation facilities
+
+% Define \newwrite to be identical to plain tex's \newwrite
+% except not \outer, so it can be used within macros and \if's.
+\edef\newwrite{\makecsname{ptexnewwrite}}
+
+% \newindex {foo} defines an index named foo.
+% It automatically defines \fooindex such that
+% \fooindex ...rest of line... puts an entry in the index foo.
+% It also defines \fooindfile to be the number of the output channel for
+% the file that accumulates this index. The file's extension is foo.
+% The name of an index should be no more than 2 characters long
+% for the sake of vms.
+%
+\def\newindex#1{%
+ \iflinks
+ \expandafter\newwrite \csname#1indfile\endcsname
+ \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
+ \fi
+ \expandafter\xdef\csname#1index\endcsname{% % Define @#1index
+ \noexpand\doindex{#1}}
+}
+
+% @defindex foo == \newindex{foo}
+%
+\def\defindex{\parsearg\newindex}
+
+% Define @defcodeindex, like @defindex except put all entries in @code.
+%
+\def\defcodeindex{\parsearg\newcodeindex}
+%
+\def\newcodeindex#1{%
+ \iflinks
+ \expandafter\newwrite \csname#1indfile\endcsname
+ \openout \csname#1indfile\endcsname \jobname.#1
+ \fi
+ \expandafter\xdef\csname#1index\endcsname{%
+ \noexpand\docodeindex{#1}}%
+}
+
+
+% @synindex foo bar makes index foo feed into index bar.
+% Do this instead of @defindex foo if you don't want it as a separate index.
+%
+% @syncodeindex foo bar similar, but put all entries made for index foo
+% inside @code.
+%
+\def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}}
+\def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}}
+
+% #1 is \doindex or \docodeindex, #2 the index getting redefined (foo),
+% #3 the target index (bar).
+\def\dosynindex#1#2#3{%
+ % Only do \closeout if we haven't already done it, else we'll end up
+ % closing the target index.
+ \expandafter \ifx\csname donesynindex#2\endcsname \undefined
+ % The \closeout helps reduce unnecessary open files; the limit on the
+ % Acorn RISC OS is a mere 16 files.
+ \expandafter\closeout\csname#2indfile\endcsname
+ \expandafter\let\csname\donesynindex#2\endcsname = 1
+ \fi
+ % redefine \fooindfile:
+ \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname
+ \expandafter\let\csname#2indfile\endcsname=\temp
+ % redefine \fooindex:
+ \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}%
+}
+
+% Define \doindex, the driver for all \fooindex macros.
+% Argument #1 is generated by the calling \fooindex macro,
+% and it is "foo", the name of the index.
+
+% \doindex just uses \parsearg; it calls \doind for the actual work.
+% This is because \doind is more useful to call from other macros.
+
+% There is also \dosubind {index}{topic}{subtopic}
+% which makes an entry in a two-level index such as the operation index.
+
+\def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
+\def\singleindexer #1{\doind{\indexname}{#1}}
+
+% like the previous two, but they put @code around the argument.
+\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
+\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
+
+% Take care of Texinfo commands that can appear in an index entry.
+% Since there are some commands we want to expand, and others we don't,
+% we have to laboriously prevent expansion for those that we don't.
+%
+\def\indexdummies{%
+ \escapechar = `\\ % use backslash in output files.
+ \def\@{@}% change to @@ when we switch to @ as escape char in index files.
+ \def\ {\realbackslash\space }%
+ % Need these in case \tex is in effect and \{ is a \delimiter again.
+ % But can't use \lbracecmd and \rbracecmd because texindex assumes
+ % braces and backslashes are used only as delimiters.
+ \let\{ = \mylbrace
+ \let\} = \myrbrace
+ %
+ % Do the redefinitions.
+ \commondummies
+}
+
+% For the aux and toc files, @ is the escape character. So we want to
+% redefine everything using @ as the escape character (instead of
+% \realbackslash, still used for index files). When everything uses @,
+% this will be simpler.
+%
+\def\atdummies{%
+ \def\@{@@}%
+ \def\ {@ }%
+ \let\{ = \lbraceatcmd
+ \let\} = \rbraceatcmd
+ %
+ % Do the redefinitions.
+ \commondummies
+}
+
+% Called from \indexdummies and \atdummies.
+%
+\def\commondummies{%
+ %
+ % \definedummyword defines \#1 as \string\#1\space, thus effectively
+ % preventing its expansion. This is used only for control% words,
+ % not control letters, because the \space would be incorrect for
+ % control characters, but is needed to separate the control word
+ % from whatever follows.
+ %
+ % For control letters, we have \definedummyletter, which omits the
+ % space.
+ %
+ % These can be used both for control words that take an argument and
+ % those that do not. If it is followed by {arg} in the input, then
+ % that will dutifully get written to the index (or wherever).
+ %
+ \def\definedummyword ##1{\def##1{\string##1\space}}%
+ \def\definedummyletter##1{\def##1{\string##1}}%
+ \let\definedummyaccent\definedummyletter
+ %
+ \commondummiesnofonts
+ %
+ \definedummyletter\_%
+ %
+ % Non-English letters.
+ \definedummyword\AA
+ \definedummyword\AE
+ \definedummyword\L
+ \definedummyword\OE
+ \definedummyword\O
+ \definedummyword\aa
+ \definedummyword\ae
+ \definedummyword\l
+ \definedummyword\oe
+ \definedummyword\o
+ \definedummyword\ss
+ \definedummyword\exclamdown
+ \definedummyword\questiondown
+ \definedummyword\ordf
+ \definedummyword\ordm
+ %
+ % Although these internal commands shouldn't show up, sometimes they do.
+ \definedummyword\bf
+ \definedummyword\gtr
+ \definedummyword\hat
+ \definedummyword\less
+ \definedummyword\sf
+ \definedummyword\sl
+ \definedummyword\tclose
+ \definedummyword\tt
+ %
+ \definedummyword\LaTeX
+ \definedummyword\TeX
+ %
+ % Assorted special characters.
+ \definedummyword\bullet
+ \definedummyword\comma
+ \definedummyword\copyright
+ \definedummyword\registeredsymbol
+ \definedummyword\dots
+ \definedummyword\enddots
+ \definedummyword\equiv
+ \definedummyword\error
+ \definedummyword\euro
+ \definedummyword\expansion
+ \definedummyword\minus
+ \definedummyword\pounds
+ \definedummyword\point
+ \definedummyword\print
+ \definedummyword\result
+ %
+ % We want to disable all macros so that they are not expanded by \write.
+ \macrolist
+ %
+ \normalturnoffactive
+ %
+ % Handle some cases of @value -- where it does not contain any
+ % (non-fully-expandable) commands.
+ \makevalueexpandable
+}
+
+% \commondummiesnofonts: common to \commondummies and \indexnofonts.
+%
+% Better have this without active chars.
+{
+ \catcode`\~=\other
+ \gdef\commondummiesnofonts{%
+ % Control letters and accents.
+ \definedummyletter\!%
+ \definedummyaccent\"%
+ \definedummyaccent\'%
+ \definedummyletter\*%
+ \definedummyaccent\,%
+ \definedummyletter\.%
+ \definedummyletter\/%
+ \definedummyletter\:%
+ \definedummyaccent\=%
+ \definedummyletter\?%
+ \definedummyaccent\^%
+ \definedummyaccent\`%
+ \definedummyaccent\~%
+ \definedummyword\u
+ \definedummyword\v
+ \definedummyword\H
+ \definedummyword\dotaccent
+ \definedummyword\ringaccent
+ \definedummyword\tieaccent
+ \definedummyword\ubaraccent
+ \definedummyword\udotaccent
+ \definedummyword\dotless
+ %
+ % Texinfo font commands.
+ \definedummyword\b
+ \definedummyword\i
+ \definedummyword\r
+ \definedummyword\sc
+ \definedummyword\t
+ %
+ % Commands that take arguments.
+ \definedummyword\acronym
+ \definedummyword\cite
+ \definedummyword\code
+ \definedummyword\command
+ \definedummyword\dfn
+ \definedummyword\emph
+ \definedummyword\env
+ \definedummyword\file
+ \definedummyword\kbd
+ \definedummyword\key
+ \definedummyword\math
+ \definedummyword\option
+ \definedummyword\samp
+ \definedummyword\strong
+ \definedummyword\tie
+ \definedummyword\uref
+ \definedummyword\url
+ \definedummyword\var
+ \definedummyword\verb
+ \definedummyword\w
+ }
+}
+
+% \indexnofonts is used when outputting the strings to sort the index
+% by, and when constructing control sequence names. It eliminates all
+% control sequences and just writes whatever the best ASCII sort string
+% would be for a given command (usually its argument).
+%
+\def\indexnofonts{%
+ % Accent commands should become @asis.
+ \def\definedummyaccent##1{\let##1\asis}%
+ % We can just ignore other control letters.
+ \def\definedummyletter##1{\let##1\empty}%
+ % Hopefully, all control words can become @asis.
+ \let\definedummyword\definedummyaccent
+ %
+ \commondummiesnofonts
+ %
+ % Don't no-op \tt, since it isn't a user-level command
+ % and is used in the definitions of the active chars like <, >, |, etc.
+ % Likewise with the other plain tex font commands.
+ %\let\tt=\asis
+ %
+ \def\ { }%
+ \def\@{@}%
+ % how to handle braces?
+ \def\_{\normalunderscore}%
+ %
+ % Non-English letters.
+ \def\AA{AA}%
+ \def\AE{AE}%
+ \def\L{L}%
+ \def\OE{OE}%
+ \def\O{O}%
+ \def\aa{aa}%
+ \def\ae{ae}%
+ \def\l{l}%
+ \def\oe{oe}%
+ \def\o{o}%
+ \def\ss{ss}%
+ \def\exclamdown{!}%
+ \def\questiondown{?}%
+ \def\ordf{a}%
+ \def\ordm{o}%
+ %
+ \def\LaTeX{LaTeX}%
+ \def\TeX{TeX}%
+ %
+ % Assorted special characters.
+ % (The following {} will end up in the sort string, but that's ok.)
+ \def\bullet{bullet}%
+ \def\comma{,}%
+ \def\copyright{copyright}%
+ \def\registeredsymbol{R}%
+ \def\dots{...}%
+ \def\enddots{...}%
+ \def\equiv{==}%
+ \def\error{error}%
+ \def\euro{euro}%
+ \def\expansion{==>}%
+ \def\minus{-}%
+ \def\pounds{pounds}%
+ \def\point{.}%
+ \def\print{-|}%
+ \def\result{=>}%
+ %
+ % We need to get rid of all macros, leaving only the arguments (if present).
+ % Of course this is not nearly correct, but it is the best we can do for now.
+ % makeinfo does not expand macros in the argument to @deffn, which ends up
+ % writing an index entry, and texindex isn't prepared for an index sort entry
+ % that starts with \.
+ %
+ % Since macro invocations are followed by braces, we can just redefine them
+ % to take a single TeX argument. The case of a macro invocation that
+ % goes to end-of-line is not handled.
+ %
+ \macrolist
+}
+
+\let\indexbackslash=0 %overridden during \printindex.
+\let\SETmarginindex=\relax % put index entries in margin (undocumented)?
+
+% Most index entries go through here, but \dosubind is the general case.
+% #1 is the index name, #2 is the entry text.
+\def\doind#1#2{\dosubind{#1}{#2}{}}
+
+% Workhorse for all \fooindexes.
+% #1 is name of index, #2 is stuff to put there, #3 is subentry --
+% empty if called from \doind, as we usually are (the main exception
+% is with most defuns, which call us directly).
+%
+\def\dosubind#1#2#3{%
+ \iflinks
+ {%
+ % Store the main index entry text (including the third arg).
+ \toks0 = {#2}%
+ % If third arg is present, precede it with a space.
+ \def\thirdarg{#3}%
+ \ifx\thirdarg\empty \else
+ \toks0 = \expandafter{\the\toks0 \space #3}%
+ \fi
+ %
+ \edef\writeto{\csname#1indfile\endcsname}%
+ %
+ \ifvmode
+ \dosubindsanitize
+ \else
+ \dosubindwrite
+ \fi
+ }%
+ \fi
+}
+
+% Write the entry in \toks0 to the index file:
+%
+\def\dosubindwrite{%
+ % Put the index entry in the margin if desired.
+ \ifx\SETmarginindex\relax\else
+ \insert\margin{\hbox{\vrule height8pt depth3pt width0pt \the\toks0}}%
+ \fi
+ %
+ % Remember, we are within a group.
+ \indexdummies % Must do this here, since \bf, etc expand at this stage
+ \def\backslashcurfont{\indexbackslash}% \indexbackslash isn't defined now
+ % so it will be output as is; and it will print as backslash.
+ %
+ % Process the index entry with all font commands turned off, to
+ % get the string to sort by.
+ {\indexnofonts
+ \edef\temp{\the\toks0}% need full expansion
+ \xdef\indexsorttmp{\temp}%
+ }%
+ %
+ % Set up the complete index entry, with both the sort key and
+ % the original text, including any font commands. We write
+ % three arguments to \entry to the .?? file (four in the
+ % subentry case), texindex reduces to two when writing the .??s
+ % sorted result.
+ \edef\temp{%
+ \write\writeto{%
+ \string\entry{\indexsorttmp}{\noexpand\folio}{\the\toks0}}%
+ }%
+ \temp
+}
+
+% Take care of unwanted page breaks:
+%
+% If a skip is the last thing on the list now, preserve it
+% by backing up by \lastskip, doing the \write, then inserting
+% the skip again. Otherwise, the whatsit generated by the
+% \write will make \lastskip zero. The result is that sequences
+% like this:
+% @end defun
+% @tindex whatever
+% @defun ...
+% will have extra space inserted, because the \medbreak in the
+% start of the @defun won't see the skip inserted by the @end of
+% the previous defun.
+%
+% But don't do any of this if we're not in vertical mode. We
+% don't want to do a \vskip and prematurely end a paragraph.
+%
+% Avoid page breaks due to these extra skips, too.
+%
+% But wait, there is a catch there:
+% We'll have to check whether \lastskip is zero skip. \ifdim is not
+% sufficient for this purpose, as it ignores stretch and shrink parts
+% of the skip. The only way seems to be to check the textual
+% representation of the skip.
+%
+% The following is almost like \def\zeroskipmacro{0.0pt} except that
+% the ``p'' and ``t'' characters have catcode \other, not 11 (letter).
+%
+\edef\zeroskipmacro{\expandafter\the\csname z@skip\endcsname}
+%
+% ..., ready, GO:
+%
+\def\dosubindsanitize{%
+ % \lastskip and \lastpenalty cannot both be nonzero simultaneously.
+ \skip0 = \lastskip
+ \edef\lastskipmacro{\the\lastskip}%
+ \count255 = \lastpenalty
+ %
+ % If \lastskip is nonzero, that means the last item was a
+ % skip. And since a skip is discardable, that means this
+ % -\skip0 glue we're inserting is preceded by a
+ % non-discardable item, therefore it is not a potential
+ % breakpoint, therefore no \nobreak needed.
+ \ifx\lastskipmacro\zeroskipmacro
+ \else
+ \vskip-\skip0
+ \fi
+ %
+ \dosubindwrite
+ %
+ \ifx\lastskipmacro\zeroskipmacro
+ % If \lastskip was zero, perhaps the last item was a penalty, and
+ % perhaps it was >=10000, e.g., a \nobreak. In that case, we want
+ % to re-insert the same penalty (values >10000 are used for various
+ % signals); since we just inserted a non-discardable item, any
+ % following glue (such as a \parskip) would be a breakpoint. For example:
+ %
+ % @deffn deffn-whatever
+ % @vindex index-whatever
+ % Description.
+ % would allow a break between the index-whatever whatsit
+ % and the "Description." paragraph.
+ \ifnum\count255>9999 \penalty\count255 \fi
+ \else
+ % On the other hand, if we had a nonzero \lastskip,
+ % this make-up glue would be preceded by a non-discardable item
+ % (the whatsit from the \write), so we must insert a \nobreak.
+ \nobreak\vskip\skip0
+ \fi
+}
+
+% The index entry written in the file actually looks like
+% \entry {sortstring}{page}{topic}
+% or
+% \entry {sortstring}{page}{topic}{subtopic}
+% The texindex program reads in these files and writes files
+% containing these kinds of lines:
+% \initial {c}
+% before the first topic whose initial is c
+% \entry {topic}{pagelist}
+% for a topic that is used without subtopics
+% \primary {topic}
+% for the beginning of a topic that is used with subtopics
+% \secondary {subtopic}{pagelist}
+% for each subtopic.
+
+% Define the user-accessible indexing commands
+% @findex, @vindex, @kindex, @cindex.
+
+\def\findex {\fnindex}
+\def\kindex {\kyindex}
+\def\cindex {\cpindex}
+\def\vindex {\vrindex}
+\def\tindex {\tpindex}
+\def\pindex {\pgindex}
+
+\def\cindexsub {\begingroup\obeylines\cindexsub}
+{\obeylines %
+\gdef\cindexsub "#1" #2^^M{\endgroup %
+\dosubind{cp}{#2}{#1}}}
+
+% Define the macros used in formatting output of the sorted index material.
+
+% @printindex causes a particular index (the ??s file) to get printed.
+% It does not print any chapter heading (usually an @unnumbered).
+%
+\parseargdef\printindex{\begingroup
+ \dobreak \chapheadingskip{10000}%
+ %
+ \smallfonts \rm
+ \tolerance = 9500
+ \everypar = {}% don't want the \kern\-parindent from indentation suppression.
+ %
+ % See if the index file exists and is nonempty.
+ % Change catcode of @ here so that if the index file contains
+ % \initial {@}
+ % as its first line, TeX doesn't complain about mismatched braces
+ % (because it thinks @} is a control sequence).
+ \catcode`\@ = 11
+ \openin 1 \jobname.#1s
+ \ifeof 1
+ % \enddoublecolumns gets confused if there is no text in the index,
+ % and it loses the chapter title and the aux file entries for the
+ % index. The easiest way to prevent this problem is to make sure
+ % there is some text.
+ \putwordIndexNonexistent
+ \else
+ %
+ % If the index file exists but is empty, then \openin leaves \ifeof
+ % false. We have to make TeX try to read something from the file, so
+ % it can discover if there is anything in it.
+ \read 1 to \temp
+ \ifeof 1
+ \putwordIndexIsEmpty
+ \else
+ % Index files are almost Texinfo source, but we use \ as the escape
+ % character. It would be better to use @, but that's too big a change
+ % to make right now.
+ \def\indexbackslash{\backslashcurfont}%
+ \catcode`\\ = 0
+ \escapechar = `\\
+ \begindoublecolumns
+ \input \jobname.#1s
+ \enddoublecolumns
+ \fi
+ \fi
+ \closein 1
+\endgroup}
+
+% These macros are used by the sorted index file itself.
+% Change them to control the appearance of the index.
+
+\def\initial#1{{%
+ % Some minor font changes for the special characters.
+ \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
+ %
+ % Remove any glue we may have, we'll be inserting our own.
+ \removelastskip
+ %
+ % We like breaks before the index initials, so insert a bonus.
+ \nobreak
+ \vskip 0pt plus 3\baselineskip
+ \penalty 0
+ \vskip 0pt plus -3\baselineskip
+ %
+ % Typeset the initial. Making this add up to a whole number of
+ % baselineskips increases the chance of the dots lining up from column
+ % to column. It still won't often be perfect, because of the stretch
+ % we need before each entry, but it's better.
+ %
+ % No shrink because it confuses \balancecolumns.
+ \vskip 1.67\baselineskip plus .5\baselineskip
+ \leftline{\secbf #1}%
+ % Do our best not to break after the initial.
+ \nobreak
+ \vskip .33\baselineskip plus .1\baselineskip
+}}
+
+% \entry typesets a paragraph consisting of the text (#1), dot leaders, and
+% then page number (#2) flushed to the right margin. It is used for index
+% and table of contents entries. The paragraph is indented by \leftskip.
+%
+% A straightforward implementation would start like this:
+% \def\entry#1#2{...
+% But this frozes the catcodes in the argument, and can cause problems to
+% @code, which sets - active. This problem was fixed by a kludge---
+% ``-'' was active throughout whole index, but this isn't really right.
+%
+% The right solution is to prevent \entry from swallowing the whole text.
+% --kasal, 21nov03
+\def\entry{%
+ \begingroup
+ %
+ % Start a new paragraph if necessary, so our assignments below can't
+ % affect previous text.
+ \par
+ %
+ % Do not fill out the last line with white space.
+ \parfillskip = 0in
+ %
+ % No extra space above this paragraph.
+ \parskip = 0in
+ %
+ % Do not prefer a separate line ending with a hyphen to fewer lines.
+ \finalhyphendemerits = 0
+ %
+ % \hangindent is only relevant when the entry text and page number
+ % don't both fit on one line. In that case, bob suggests starting the
+ % dots pretty far over on the line. Unfortunately, a large
+ % indentation looks wrong when the entry text itself is broken across
+ % lines. So we use a small indentation and put up with long leaders.
+ %
+ % \hangafter is reset to 1 (which is the value we want) at the start
+ % of each paragraph, so we need not do anything with that.
+ \hangindent = 2em
+ %
+ % When the entry text needs to be broken, just fill out the first line
+ % with blank space.
+ \rightskip = 0pt plus1fil
+ %
+ % A bit of stretch before each entry for the benefit of balancing
+ % columns.
+ \vskip 0pt plus1pt
+ %
+ % Swallow the left brace of the text (first parameter):
+ \afterassignment\doentry
+ \let\temp =
+}
+\def\doentry{%
+ \bgroup % Instead of the swallowed brace.
+ \noindent
+ \aftergroup\finishentry
+ % And now comes the text of the entry.
+}
+\def\finishentry#1{%
+ % #1 is the page number.
+ %
+ % The following is kludged to not output a line of dots in the index if
+ % there are no page numbers. The next person who breaks this will be
+ % cursed by a Unix daemon.
+ \def\tempa{{\rm }}%
+ \def\tempb{#1}%
+ \edef\tempc{\tempa}%
+ \edef\tempd{\tempb}%
+ \ifx\tempc\tempd
+ \ %
+ \else
+ %
+ % If we must, put the page number on a line of its own, and fill out
+ % this line with blank space. (The \hfil is overwhelmed with the
+ % fill leaders glue in \indexdotfill if the page number does fit.)
+ \hfil\penalty50
+ \null\nobreak\indexdotfill % Have leaders before the page number.
+ %
+ % The `\ ' here is removed by the implicit \unskip that TeX does as
+ % part of (the primitive) \par. Without it, a spurious underfull
+ % \hbox ensues.
+ \ifpdf
+ \pdfgettoks#1.%
+ \ \the\toksA
+ \else
+ \ #1%
+ \fi
+ \fi
+ \par
+ \endgroup
+}
+
+% Like \dotfill except takes at least 1 em.
+\def\indexdotfill{\cleaders
+ \hbox{$\mathsurround=0pt \mkern1.5mu ${\it .}$ \mkern1.5mu$}\hskip 1em plus 1fill}
+
+\def\primary #1{\line{#1\hfil}}
+
+\newskip\secondaryindent \secondaryindent=0.5cm
+\def\secondary#1#2{{%
+ \parfillskip=0in
+ \parskip=0in
+ \hangindent=1in
+ \hangafter=1
+ \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill
+ \ifpdf
+ \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
+ \else
+ #2
+ \fi
+ \par
+}}
+
+% Define two-column mode, which we use to typeset indexes.
+% Adapted from the TeXbook, page 416, which is to say,
+% the manmac.tex format used to print the TeXbook itself.
+\catcode`\@=11
+
+\newbox\partialpage
+\newdimen\doublecolumnhsize
+
+\def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
+ % Grab any single-column material above us.
+ \output = {%
+ %
+ % Here is a possibility not foreseen in manmac: if we accumulate a
+ % whole lot of material, we might end up calling this \output
+ % routine twice in a row (see the doublecol-lose test, which is
+ % essentially a couple of indexes with @setchapternewpage off). In
+ % that case we just ship out what is in \partialpage with the normal
+ % output routine. Generally, \partialpage will be empty when this
+ % runs and this will be a no-op. See the indexspread.tex test case.
+ \ifvoid\partialpage \else
+ \onepageout{\pagecontents\partialpage}%
+ \fi
+ %
+ \global\setbox\partialpage = \vbox{%
+ % Unvbox the main output page.
+ \unvbox\PAGE
+ \kern-\topskip \kern\baselineskip
+ }%
+ }%
+ \eject % run that output routine to set \partialpage
+ %
+ % Use the double-column output routine for subsequent pages.
+ \output = {\doublecolumnout}%
+ %
+ % Change the page size parameters. We could do this once outside this
+ % routine, in each of @smallbook, @afourpaper, and the default 8.5x11
+ % format, but then we repeat the same computation. Repeating a couple
+ % of assignments once per index is clearly meaningless for the
+ % execution time, so we may as well do it in one place.
+ %
+ % First we halve the line length, less a little for the gutter between
+ % the columns. We compute the gutter based on the line length, so it
+ % changes automatically with the paper format. The magic constant
+ % below is chosen so that the gutter has the same value (well, +-<1pt)
+ % as it did when we hard-coded it.
+ %
+ % We put the result in a separate register, \doublecolumhsize, so we
+ % can restore it in \pagesofar, after \hsize itself has (potentially)
+ % been clobbered.
+ %
+ \doublecolumnhsize = \hsize
+ \advance\doublecolumnhsize by -.04154\hsize
+ \divide\doublecolumnhsize by 2
+ \hsize = \doublecolumnhsize
+ %
+ % Double the \vsize as well. (We don't need a separate register here,
+ % since nobody clobbers \vsize.)
+ \vsize = 2\vsize
+}
+
+% The double-column output routine for all double-column pages except
+% the last.
+%
+\def\doublecolumnout{%
+ \splittopskip=\topskip \splitmaxdepth=\maxdepth
+ % Get the available space for the double columns -- the normal
+ % (undoubled) page height minus any material left over from the
+ % previous page.
+ \dimen@ = \vsize
+ \divide\dimen@ by 2
+ \advance\dimen@ by -\ht\partialpage
+ %
+ % box0 will be the left-hand column, box2 the right.
+ \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
+ \onepageout\pagesofar
+ \unvbox255
+ \penalty\outputpenalty
+}
+%
+% Re-output the contents of the output page -- any previous material,
+% followed by the two boxes we just split, in box0 and box2.
+\def\pagesofar{%
+ \unvbox\partialpage
+ %
+ \hsize = \doublecolumnhsize
+ \wd0=\hsize \wd2=\hsize
+ \hbox to\pagewidth{\box0\hfil\box2}%
+}
+%
+% All done with double columns.
+\def\enddoublecolumns{%
+ \output = {%
+ % Split the last of the double-column material. Leave it on the
+ % current page, no automatic page break.
+ \balancecolumns
+ %
+ % If we end up splitting too much material for the current page,
+ % though, there will be another page break right after this \output
+ % invocation ends. Having called \balancecolumns once, we do not
+ % want to call it again. Therefore, reset \output to its normal
+ % definition right away. (We hope \balancecolumns will never be
+ % called on to balance too much material, but if it is, this makes
+ % the output somewhat more palatable.)
+ \global\output = {\onepageout{\pagecontents\PAGE}}%
+ }%
+ \eject
+ \endgroup % started in \begindoublecolumns
+ %
+ % \pagegoal was set to the doubled \vsize above, since we restarted
+ % the current page. We're now back to normal single-column
+ % typesetting, so reset \pagegoal to the normal \vsize (after the
+ % \endgroup where \vsize got restored).
+ \pagegoal = \vsize
+}
+%
+% Called at the end of the double column material.
+\def\balancecolumns{%
+ \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120.
+ \dimen@ = \ht0
+ \advance\dimen@ by \topskip
+ \advance\dimen@ by-\baselineskip
+ \divide\dimen@ by 2 % target to split to
+ %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}%
+ \splittopskip = \topskip
+ % Loop until we get a decent breakpoint.
+ {%
+ \vbadness = 10000
+ \loop
+ \global\setbox3 = \copy0
+ \global\setbox1 = \vsplit3 to \dimen@
+ \ifdim\ht3>\dimen@
+ \global\advance\dimen@ by 1pt
+ \repeat
+ }%
+ %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}%
+ \setbox0=\vbox to\dimen@{\unvbox1}%
+ \setbox2=\vbox to\dimen@{\unvbox3}%
+ %
+ \pagesofar
+}
+\catcode`\@ = \other
+
+
+\message{sectioning,}
+% Chapters, sections, etc.
+
+% \unnumberedno is an oxymoron, of course. But we count the unnumbered
+% sections so that we can refer to them unambiguously in the pdf
+% outlines by their "section number". We avoid collisions with chapter
+% numbers by starting them at 10000. (If a document ever has 10000
+% chapters, we're in trouble anyway, I'm sure.)
+\newcount\unnumberedno \unnumberedno = 10000
+\newcount\chapno
+\newcount\secno \secno=0
+\newcount\subsecno \subsecno=0
+\newcount\subsubsecno \subsubsecno=0
+
+% This counter is funny since it counts through charcodes of letters A, B, ...
+\newcount\appendixno \appendixno = `\@
+%
+% \def\appendixletter{\char\the\appendixno}
+% We do the following ugly conditional instead of the above simple
+% construct for the sake of pdftex, which needs the actual
+% letter in the expansion, not just typeset.
+%
+\def\appendixletter{%
+ \ifnum\appendixno=`A A%
+ \else\ifnum\appendixno=`B B%
+ \else\ifnum\appendixno=`C C%
+ \else\ifnum\appendixno=`D D%
+ \else\ifnum\appendixno=`E E%
+ \else\ifnum\appendixno=`F F%
+ \else\ifnum\appendixno=`G G%
+ \else\ifnum\appendixno=`H H%
+ \else\ifnum\appendixno=`I I%
+ \else\ifnum\appendixno=`J J%
+ \else\ifnum\appendixno=`K K%
+ \else\ifnum\appendixno=`L L%
+ \else\ifnum\appendixno=`M M%
+ \else\ifnum\appendixno=`N N%
+ \else\ifnum\appendixno=`O O%
+ \else\ifnum\appendixno=`P P%
+ \else\ifnum\appendixno=`Q Q%
+ \else\ifnum\appendixno=`R R%
+ \else\ifnum\appendixno=`S S%
+ \else\ifnum\appendixno=`T T%
+ \else\ifnum\appendixno=`U U%
+ \else\ifnum\appendixno=`V V%
+ \else\ifnum\appendixno=`W W%
+ \else\ifnum\appendixno=`X X%
+ \else\ifnum\appendixno=`Y Y%
+ \else\ifnum\appendixno=`Z Z%
+ % The \the is necessary, despite appearances, because \appendixletter is
+ % expanded while writing the .toc file. \char\appendixno is not
+ % expandable, thus it is written literally, thus all appendixes come out
+ % with the same letter (or @) in the toc without it.
+ \else\char\the\appendixno
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
+
+% Each @chapter defines this as the name of the chapter.
+% page headings and footings can use it. @section does likewise.
+% However, they are not reliable, because we don't use marks.
+\def\thischapter{}
+\def\thissection{}
+
+\newcount\absseclevel % used to calculate proper heading level
+\newcount\secbase\secbase=0 % @raisesections/@lowersections modify this count
+
+% @raisesections: treat @section as chapter, @subsection as section, etc.
+\def\raisesections{\global\advance\secbase by -1}
+\let\up=\raisesections % original BFox name
+
+% @lowersections: treat @chapter as section, @section as subsection, etc.
+\def\lowersections{\global\advance\secbase by 1}
+\let\down=\lowersections % original BFox name
+
+% we only have subsub.
+\chardef\maxseclevel = 3
+%
+% A numbered section within an unnumbered changes to unnumbered too.
+% To achive this, remember the "biggest" unnum. sec. we are currently in:
+\chardef\unmlevel = \maxseclevel
+%
+% Trace whether the current chapter is an appendix or not:
+% \chapheadtype is "N" or "A", unnumbered chapters are ignored.
+\def\chapheadtype{N}
+
+% Choose a heading macro
+% #1 is heading type
+% #2 is heading level
+% #3 is text for heading
+\def\genhead#1#2#3{%
+ % Compute the abs. sec. level:
+ \absseclevel=#2
+ \advance\absseclevel by \secbase
+ % Make sure \absseclevel doesn't fall outside the range:
+ \ifnum \absseclevel < 0
+ \absseclevel = 0
+ \else
+ \ifnum \absseclevel > 3
+ \absseclevel = 3
+ \fi
+ \fi
+ % The heading type:
+ \def\headtype{#1}%
+ \if \headtype U%
+ \ifnum \absseclevel < \unmlevel
+ \chardef\unmlevel = \absseclevel
+ \fi
+ \else
+ % Check for appendix sections:
+ \ifnum \absseclevel = 0
+ \edef\chapheadtype{\headtype}%
+ \else
+ \if \headtype A\if \chapheadtype N%
+ \errmessage{@appendix... within a non-appendix chapter}%
+ \fi\fi
+ \fi
+ % Check for numbered within unnumbered:
+ \ifnum \absseclevel > \unmlevel
+ \def\headtype{U}%
+ \else
+ \chardef\unmlevel = 3
+ \fi
+ \fi
+ % Now print the heading:
+ \if \headtype U%
+ \ifcase\absseclevel
+ \unnumberedzzz{#3}%
+ \or \unnumberedseczzz{#3}%
+ \or \unnumberedsubseczzz{#3}%
+ \or \unnumberedsubsubseczzz{#3}%
+ \fi
+ \else
+ \if \headtype A%
+ \ifcase\absseclevel
+ \appendixzzz{#3}%
+ \or \appendixsectionzzz{#3}%
+ \or \appendixsubseczzz{#3}%
+ \or \appendixsubsubseczzz{#3}%
+ \fi
+ \else
+ \ifcase\absseclevel
+ \chapterzzz{#3}%
+ \or \seczzz{#3}%
+ \or \numberedsubseczzz{#3}%
+ \or \numberedsubsubseczzz{#3}%
+ \fi
+ \fi
+ \fi
+ \suppressfirstparagraphindent
+}
+
+% an interface:
+\def\numhead{\genhead N}
+\def\apphead{\genhead A}
+\def\unnmhead{\genhead U}
+
+% @chapter, @appendix, @unnumbered. Increment top-level counter, reset
+% all lower-level sectioning counters to zero.
+%
+% Also set \chaplevelprefix, which we prepend to @float sequence numbers
+% (e.g., figures), q.v. By default (before any chapter), that is empty.
+\let\chaplevelprefix = \empty
+%
+\outer\parseargdef\chapter{\numhead0{#1}} % normally numhead0 calls chapterzzz
+\def\chapterzzz#1{%
+ % section resetting is \global in case the chapter is in a group, such
+ % as an @include file.
+ \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
+ \global\advance\chapno by 1
+ %
+ % Used for \float.
+ \gdef\chaplevelprefix{\the\chapno.}%
+ \resetallfloatnos
+ %
+ \message{\putwordChapter\space \the\chapno}%
+ %
+ % Write the actual heading.
+ \chapmacro{#1}{Ynumbered}{\the\chapno}%
+ %
+ % So @section and the like are numbered underneath this chapter.
+ \global\let\section = \numberedsec
+ \global\let\subsection = \numberedsubsec
+ \global\let\subsubsection = \numberedsubsubsec
+}
+
+\outer\parseargdef\appendix{\apphead0{#1}} % normally apphead0 calls appendixzzz
+\def\appendixzzz#1{%
+ \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
+ \global\advance\appendixno by 1
+ \gdef\chaplevelprefix{\appendixletter.}%
+ \resetallfloatnos
+ %
+ \def\appendixnum{\putwordAppendix\space \appendixletter}%
+ \message{\appendixnum}%
+ %
+ \chapmacro{#1}{Yappendix}{\appendixletter}%
+ %
+ \global\let\section = \appendixsec
+ \global\let\subsection = \appendixsubsec
+ \global\let\subsubsection = \appendixsubsubsec
+}
+
+\outer\parseargdef\unnumbered{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz
+\def\unnumberedzzz#1{%
+ \global\secno=0 \global\subsecno=0 \global\subsubsecno=0
+ \global\advance\unnumberedno by 1
+ %
+ % Since an unnumbered has no number, no prefix for figures.
+ \global\let\chaplevelprefix = \empty
+ \resetallfloatnos
+ %
+ % This used to be simply \message{#1}, but TeX fully expands the
+ % argument to \message. Therefore, if #1 contained @-commands, TeX
+ % expanded them. For example, in `@unnumbered The @cite{Book}', TeX
+ % expanded @cite (which turns out to cause errors because \cite is meant
+ % to be executed, not expanded).
+ %
+ % Anyway, we don't want the fully-expanded definition of @cite to appear
+ % as a result of the \message, we just want `@cite' itself. We use
+ % \the<toks register> to achieve this: TeX expands \the<toks> only once,
+ % simply yielding the contents of <toks register>. (We also do this for
+ % the toc entries.)
+ \toks0 = {#1}%
+ \message{(\the\toks0)}%
+ %
+ \chapmacro{#1}{Ynothing}{\the\unnumberedno}%
+ %
+ \global\let\section = \unnumberedsec
+ \global\let\subsection = \unnumberedsubsec
+ \global\let\subsubsection = \unnumberedsubsubsec
+}
+
+% @centerchap is like @unnumbered, but the heading is centered.
+\outer\parseargdef\centerchap{%
+ % Well, we could do the following in a group, but that would break
+ % an assumption that \chapmacro is called at the outermost level.
+ % Thus we are safer this way: --kasal, 24feb04
+ \let\centerparametersmaybe = \centerparameters
+ \unnmhead0{#1}%
+ \let\centerparametersmaybe = \relax
+}
+
+% @top is like @unnumbered.
+\let\top\unnumbered
+
+% Sections.
+\outer\parseargdef\numberedsec{\numhead1{#1}} % normally calls seczzz
+\def\seczzz#1{%
+ \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1
+ \sectionheading{#1}{sec}{Ynumbered}{\the\chapno.\the\secno}%
+}
+
+\outer\parseargdef\appendixsection{\apphead1{#1}} % normally calls appendixsectionzzz
+\def\appendixsectionzzz#1{%
+ \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1
+ \sectionheading{#1}{sec}{Yappendix}{\appendixletter.\the\secno}%
+}
+\let\appendixsec\appendixsection
+
+\outer\parseargdef\unnumberedsec{\unnmhead1{#1}} % normally calls unnumberedseczzz
+\def\unnumberedseczzz#1{%
+ \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1
+ \sectionheading{#1}{sec}{Ynothing}{\the\unnumberedno.\the\secno}%
+}
+
+% Subsections.
+\outer\parseargdef\numberedsubsec{\numhead2{#1}} % normally calls numberedsubseczzz
+\def\numberedsubseczzz#1{%
+ \global\subsubsecno=0 \global\advance\subsecno by 1
+ \sectionheading{#1}{subsec}{Ynumbered}{\the\chapno.\the\secno.\the\subsecno}%
+}
+
+\outer\parseargdef\appendixsubsec{\apphead2{#1}} % normally calls appendixsubseczzz
+\def\appendixsubseczzz#1{%
+ \global\subsubsecno=0 \global\advance\subsecno by 1
+ \sectionheading{#1}{subsec}{Yappendix}%
+ {\appendixletter.\the\secno.\the\subsecno}%
+}
+
+\outer\parseargdef\unnumberedsubsec{\unnmhead2{#1}} %normally calls unnumberedsubseczzz
+\def\unnumberedsubseczzz#1{%
+ \global\subsubsecno=0 \global\advance\subsecno by 1
+ \sectionheading{#1}{subsec}{Ynothing}%
+ {\the\unnumberedno.\the\secno.\the\subsecno}%
+}
+
+% Subsubsections.
+\outer\parseargdef\numberedsubsubsec{\numhead3{#1}} % normally numberedsubsubseczzz
+\def\numberedsubsubseczzz#1{%
+ \global\advance\subsubsecno by 1
+ \sectionheading{#1}{subsubsec}{Ynumbered}%
+ {\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno}%
+}
+
+\outer\parseargdef\appendixsubsubsec{\apphead3{#1}} % normally appendixsubsubseczzz
+\def\appendixsubsubseczzz#1{%
+ \global\advance\subsubsecno by 1
+ \sectionheading{#1}{subsubsec}{Yappendix}%
+ {\appendixletter.\the\secno.\the\subsecno.\the\subsubsecno}%
+}
+
+\outer\parseargdef\unnumberedsubsubsec{\unnmhead3{#1}} %normally unnumberedsubsubseczzz
+\def\unnumberedsubsubseczzz#1{%
+ \global\advance\subsubsecno by 1
+ \sectionheading{#1}{subsubsec}{Ynothing}%
+ {\the\unnumberedno.\the\secno.\the\subsecno.\the\subsubsecno}%
+}
+
+% These macros control what the section commands do, according
+% to what kind of chapter we are in (ordinary, appendix, or unnumbered).
+% Define them by default for a numbered chapter.
+\let\section = \numberedsec
+\let\subsection = \numberedsubsec
+\let\subsubsection = \numberedsubsubsec
+
+% Define @majorheading, @heading and @subheading
+
+% NOTE on use of \vbox for chapter headings, section headings, and such:
+% 1) We use \vbox rather than the earlier \line to permit
+% overlong headings to fold.
+% 2) \hyphenpenalty is set to 10000 because hyphenation in a
+% heading is obnoxious; this forbids it.
+% 3) Likewise, headings look best if no \parindent is used, and
+% if justification is not attempted. Hence \raggedright.
+
+
+\def\majorheading{%
+ {\advance\chapheadingskip by 10pt \chapbreak }%
+ \parsearg\chapheadingzzz
+}
+
+\def\chapheading{\chapbreak \parsearg\chapheadingzzz}
+\def\chapheadingzzz#1{%
+ {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt\raggedright
+ \rm #1\hfill}}%
+ \bigskip \par\penalty 200\relax
+ \suppressfirstparagraphindent
+}
+
+% @heading, @subheading, @subsubheading.
+\parseargdef\heading{\sectionheading{#1}{sec}{Yomitfromtoc}{}
+ \suppressfirstparagraphindent}
+\parseargdef\subheading{\sectionheading{#1}{subsec}{Yomitfromtoc}{}
+ \suppressfirstparagraphindent}
+\parseargdef\subsubheading{\sectionheading{#1}{subsubsec}{Yomitfromtoc}{}
+ \suppressfirstparagraphindent}
+
+% These macros generate a chapter, section, etc. heading only
+% (including whitespace, linebreaking, etc. around it),
+% given all the information in convenient, parsed form.
+
+%%% Args are the skip and penalty (usually negative)
+\def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
+
+%%% Define plain chapter starts, and page on/off switching for it
+% Parameter controlling skip before chapter headings (if needed)
+
+\newskip\chapheadingskip
+
+\def\chapbreak{\dobreak \chapheadingskip {-4000}}
+\def\chappager{\par\vfill\supereject}
+\def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi}
+
+\def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
+
+\def\CHAPPAGoff{%
+\global\let\contentsalignmacro = \chappager
+\global\let\pchapsepmacro=\chapbreak
+\global\let\pagealignmacro=\chappager}
+
+\def\CHAPPAGon{%
+\global\let\contentsalignmacro = \chappager
+\global\let\pchapsepmacro=\chappager
+\global\let\pagealignmacro=\chappager
+\global\def\HEADINGSon{\HEADINGSsingle}}
+
+\def\CHAPPAGodd{%
+\global\let\contentsalignmacro = \chapoddpage
+\global\let\pchapsepmacro=\chapoddpage
+\global\let\pagealignmacro=\chapoddpage
+\global\def\HEADINGSon{\HEADINGSdouble}}
+
+\CHAPPAGon
+
+% Chapter opening.
+%
+% #1 is the text, #2 is the section type (Ynumbered, Ynothing,
+% Yappendix, Yomitfromtoc), #3 the chapter number.
+%
+% To test against our argument.
+\def\Ynothingkeyword{Ynothing}
+\def\Yomitfromtockeyword{Yomitfromtoc}
+\def\Yappendixkeyword{Yappendix}
+%
+\def\chapmacro#1#2#3{%
+ \pchapsepmacro
+ {%
+ \chapfonts \rm
+ %
+ % Have to define \thissection before calling \donoderef, because the
+ % xref code eventually uses it. On the other hand, it has to be called
+ % after \pchapsepmacro, or the headline will change too soon.
+ \gdef\thissection{#1}%
+ \gdef\thischaptername{#1}%
+ %
+ % Only insert the separating space if we have a chapter/appendix
+ % number, and don't print the unnumbered ``number''.
+ \def\temptype{#2}%
+ \ifx\temptype\Ynothingkeyword
+ \setbox0 = \hbox{}%
+ \def\toctype{unnchap}%
+ \gdef\thischapter{#1}%
+ \else\ifx\temptype\Yomitfromtockeyword
+ \setbox0 = \hbox{}% contents like unnumbered, but no toc entry
+ \def\toctype{omit}%
+ \gdef\thischapter{}%
+ \else\ifx\temptype\Yappendixkeyword
+ \setbox0 = \hbox{\putwordAppendix{} #3\enspace}%
+ \def\toctype{app}%
+ % We don't substitute the actual chapter name into \thischapter
+ % because we don't want its macros evaluated now. And we don't
+ % use \thissection because that changes with each section.
+ %
+ \xdef\thischapter{\putwordAppendix{} \appendixletter:
+ \noexpand\thischaptername}%
+ \else
+ \setbox0 = \hbox{#3\enspace}%
+ \def\toctype{numchap}%
+ \xdef\thischapter{\putwordChapter{} \the\chapno:
+ \noexpand\thischaptername}%
+ \fi\fi\fi
+ %
+ % Write the toc entry for this chapter. Must come before the
+ % \donoderef, because we include the current node name in the toc
+ % entry, and \donoderef resets it to empty.
+ \writetocentry{\toctype}{#1}{#3}%
+ %
+ % For pdftex, we have to write out the node definition (aka, make
+ % the pdfdest) after any page break, but before the actual text has
+ % been typeset. If the destination for the pdf outline is after the
+ % text, then jumping from the outline may wind up with the text not
+ % being visible, for instance under high magnification.
+ \donoderef{#2}%
+ %
+ % Typeset the actual heading.
+ \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
+ \hangindent=\wd0 \centerparametersmaybe
+ \unhbox0 #1\par}%
+ }%
+ \nobreak\bigskip % no page break after a chapter title
+ \nobreak
+}
+
+% @centerchap -- centered and unnumbered.
+\let\centerparametersmaybe = \relax
+\def\centerparameters{%
+ \advance\rightskip by 3\rightskip
+ \leftskip = \rightskip
+ \parfillskip = 0pt
+}
+
+
+% I don't think this chapter style is supported any more, so I'm not
+% updating it with the new noderef stuff. We'll see. --karl, 11aug03.
+%
+\def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
+%
+\def\unnchfopen #1{%
+\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt\raggedright
+ \rm #1\hfill}}\bigskip \par\nobreak
+}
+\def\chfopen #1#2{\chapoddpage {\chapfonts
+\vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
+\par\penalty 5000 %
+}
+\def\centerchfopen #1{%
+\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt
+ \hfill {\rm #1}\hfill}}\bigskip \par\nobreak
+}
+\def\CHAPFopen{%
+ \global\let\chapmacro=\chfopen
+ \global\let\centerchapmacro=\centerchfopen}
+
+
+% Section titles. These macros combine the section number parts and
+% call the generic \sectionheading to do the printing.
+%
+\newskip\secheadingskip
+\def\secheadingbreak{\dobreak \secheadingskip{-1000}}
+
+% Subsection titles.
+\newskip\subsecheadingskip
+\def\subsecheadingbreak{\dobreak \subsecheadingskip{-500}}
+
+% Subsubsection titles.
+\def\subsubsecheadingskip{\subsecheadingskip}
+\def\subsubsecheadingbreak{\subsecheadingbreak}
+
+
+% Print any size, any type, section title.
+%
+% #1 is the text, #2 is the section level (sec/subsec/subsubsec), #3 is
+% the section type for xrefs (Ynumbered, Ynothing, Yappendix), #4 is the
+% section number.
+%
+\def\sectionheading#1#2#3#4{%
+ {%
+ % Switch to the right set of fonts.
+ \csname #2fonts\endcsname \rm
+ %
+ % Insert space above the heading.
+ \csname #2headingbreak\endcsname
+ %
+ % Only insert the space after the number if we have a section number.
+ \def\sectionlevel{#2}%
+ \def\temptype{#3}%
+ %
+ \ifx\temptype\Ynothingkeyword
+ \setbox0 = \hbox{}%
+ \def\toctype{unn}%
+ \gdef\thissection{#1}%
+ \else\ifx\temptype\Yomitfromtockeyword
+ % for @headings -- no section number, don't include in toc,
+ % and don't redefine \thissection.
+ \setbox0 = \hbox{}%
+ \def\toctype{omit}%
+ \let\sectionlevel=\empty
+ \else\ifx\temptype\Yappendixkeyword
+ \setbox0 = \hbox{#4\enspace}%
+ \def\toctype{app}%
+ \gdef\thissection{#1}%
+ \else
+ \setbox0 = \hbox{#4\enspace}%
+ \def\toctype{num}%
+ \gdef\thissection{#1}%
+ \fi\fi\fi
+ %
+ % Write the toc entry (before \donoderef). See comments in \chfplain.
+ \writetocentry{\toctype\sectionlevel}{#1}{#4}%
+ %
+ % Write the node reference (= pdf destination for pdftex).
+ % Again, see comments in \chfplain.
+ \donoderef{#3}%
+ %
+ % Output the actual section heading.
+ \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
+ \hangindent=\wd0 % zero if no section number
+ \unhbox0 #1}%
+ }%
+ % Add extra space after the heading -- half of whatever came above it.
+ % Don't allow stretch, though.
+ \kern .5 \csname #2headingskip\endcsname
+ %
+ % Do not let the kern be a potential breakpoint, as it would be if it
+ % was followed by glue.
+ \nobreak
+ %
+ % We'll almost certainly start a paragraph next, so don't let that
+ % glue accumulate. (Not a breakpoint because it's preceded by a
+ % discardable item.)
+ \vskip-\parskip
+ %
+ % This is purely so the last item on the list is a known \penalty >
+ % 10000. This is so \startdefun can avoid allowing breakpoints after
+ % section headings. Otherwise, it would insert a valid breakpoint between:
+ %
+ % @section sec-whatever
+ % @deffn def-whatever
+ \penalty 10001
+}
+
+
+\message{toc,}
+% Table of contents.
+\newwrite\tocfile
+
+% Write an entry to the toc file, opening it if necessary.
+% Called from @chapter, etc.
+%
+% Example usage: \writetocentry{sec}{Section Name}{\the\chapno.\the\secno}
+% We append the current node name (if any) and page number as additional
+% arguments for the \{chap,sec,...}entry macros which will eventually
+% read this. The node name is used in the pdf outlines as the
+% destination to jump to.
+%
+% We open the .toc file for writing here instead of at @setfilename (or
+% any other fixed time) so that @contents can be anywhere in the document.
+% But if #1 is `omit', then we don't do anything. This is used for the
+% table of contents chapter openings themselves.
+%
+\newif\iftocfileopened
+\def\omitkeyword{omit}%
+%
+\def\writetocentry#1#2#3{%
+ \edef\writetoctype{#1}%
+ \ifx\writetoctype\omitkeyword \else
+ \iftocfileopened\else
+ \immediate\openout\tocfile = \jobname.toc
+ \global\tocfileopenedtrue
+ \fi
+ %
+ \iflinks
+ {\atdummies
+ \edef\temp{%
+ \write\tocfile{@#1entry{#2}{#3}{\lastnode}{\noexpand\folio}}}%
+ \temp
+ }
+ \fi
+ \fi
+ %
+ % Tell \shipout to create a pdf destination on each page, if we're
+ % writing pdf. These are used in the table of contents. We can't
+ % just write one on every page because the title pages are numbered
+ % 1 and 2 (the page numbers aren't printed), and so are the first
+ % two pages of the document. Thus, we'd have two destinations named
+ % `1', and two named `2'.
+ \ifpdf \global\pdfmakepagedesttrue \fi
+}
+
+
+% These characters do not print properly in the Computer Modern roman
+% fonts, so we must take special care. This is more or less redundant
+% with the Texinfo input format setup at the end of this file.
+%
+\def\activecatcodes{%
+ \catcode`\"=\active
+ \catcode`\$=\active
+ \catcode`\<=\active
+ \catcode`\>=\active
+ \catcode`\\=\active
+ \catcode`\^=\active
+ \catcode`\_=\active
+ \catcode`\|=\active
+ \catcode`\~=\active
+}
+
+
+% Read the toc file, which is essentially Texinfo input.
+\def\readtocfile{%
+ \setupdatafile
+ \activecatcodes
+ \input \jobname.toc
+}
+
+\newskip\contentsrightmargin \contentsrightmargin=1in
+\newcount\savepageno
+\newcount\lastnegativepageno \lastnegativepageno = -1
+
+% Prepare to read what we've written to \tocfile.
+%
+\def\startcontents#1{%
+ % If @setchapternewpage on, and @headings double, the contents should
+ % start on an odd page, unlike chapters. Thus, we maintain
+ % \contentsalignmacro in parallel with \pagealignmacro.
+ % From: Torbjorn Granlund <tege@matematik.su.se>
+ \contentsalignmacro
+ \immediate\closeout\tocfile
+ %
+ % Don't need to put `Contents' or `Short Contents' in the headline.
+ % It is abundantly clear what they are.
+ \def\thischapter{}%
+ \chapmacro{#1}{Yomitfromtoc}{}%
+ %
+ \savepageno = \pageno
+ \begingroup % Set up to handle contents files properly.
+ \raggedbottom % Worry more about breakpoints than the bottom.
+ \advance\hsize by -\contentsrightmargin % Don't use the full line length.
+ %
+ % Roman numerals for page numbers.
+ \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi
+}
+
+
+% Normal (long) toc.
+\def\contents{%
+ \startcontents{\putwordTOC}%
+ \openin 1 \jobname.toc
+ \ifeof 1 \else
+ \readtocfile
+ \fi
+ \vfill \eject
+ \contentsalignmacro % in case @setchapternewpage odd is in effect
+ \ifeof 1 \else
+ \pdfmakeoutlines
+ \fi
+ \closein 1
+ \endgroup
+ \lastnegativepageno = \pageno
+ \global\pageno = \savepageno
+}
+
+% And just the chapters.
+\def\summarycontents{%
+ \startcontents{\putwordShortTOC}%
+ %
+ \let\numchapentry = \shortchapentry
+ \let\appentry = \shortchapentry
+ \let\unnchapentry = \shortunnchapentry
+ % We want a true roman here for the page numbers.
+ \secfonts
+ \let\rm=\shortcontrm \let\bf=\shortcontbf
+ \let\sl=\shortcontsl \let\tt=\shortconttt
+ \rm
+ \hyphenpenalty = 10000
+ \advance\baselineskip by 1pt % Open it up a little.
+ \def\numsecentry##1##2##3##4{}
+ \let\appsecentry = \numsecentry
+ \let\unnsecentry = \numsecentry
+ \let\numsubsecentry = \numsecentry
+ \let\appsubsecentry = \numsecentry
+ \let\unnsubsecentry = \numsecentry
+ \let\numsubsubsecentry = \numsecentry
+ \let\appsubsubsecentry = \numsecentry
+ \let\unnsubsubsecentry = \numsecentry
+ \openin 1 \jobname.toc
+ \ifeof 1 \else
+ \readtocfile
+ \fi
+ \closein 1
+ \vfill \eject
+ \contentsalignmacro % in case @setchapternewpage odd is in effect
+ \endgroup
+ \lastnegativepageno = \pageno
+ \global\pageno = \savepageno
+}
+\let\shortcontents = \summarycontents
+
+% Typeset the label for a chapter or appendix for the short contents.
+% The arg is, e.g., `A' for an appendix, or `3' for a chapter.
+%
+\def\shortchaplabel#1{%
+ % This space should be enough, since a single number is .5em, and the
+ % widest letter (M) is 1em, at least in the Computer Modern fonts.
+ % But use \hss just in case.
+ % (This space doesn't include the extra space that gets added after
+ % the label; that gets put in by \shortchapentry above.)
+ %
+ % We'd like to right-justify chapter numbers, but that looks strange
+ % with appendix letters. And right-justifying numbers and
+ % left-justifying letters looks strange when there is less than 10
+ % chapters. Have to read the whole toc once to know how many chapters
+ % there are before deciding ...
+ \hbox to 1em{#1\hss}%
+}
+
+% These macros generate individual entries in the table of contents.
+% The first argument is the chapter or section name.
+% The last argument is the page number.
+% The arguments in between are the chapter number, section number, ...
+
+% Chapters, in the main contents.
+\def\numchapentry#1#2#3#4{\dochapentry{#2\labelspace#1}{#4}}
+%
+% Chapters, in the short toc.
+% See comments in \dochapentry re vbox and related settings.
+\def\shortchapentry#1#2#3#4{%
+ \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#4\egroup}%
+}
+
+% Appendices, in the main contents.
+% Need the word Appendix, and a fixed-size box.
+%
+\def\appendixbox#1{%
+ % We use M since it's probably the widest letter.
+ \setbox0 = \hbox{\putwordAppendix{} M}%
+ \hbox to \wd0{\putwordAppendix{} #1\hss}}
+%
+\def\appentry#1#2#3#4{\dochapentry{\appendixbox{#2}\labelspace#1}{#4}}
+
+% Unnumbered chapters.
+\def\unnchapentry#1#2#3#4{\dochapentry{#1}{#4}}
+\def\shortunnchapentry#1#2#3#4{\tocentry{#1}{\doshortpageno\bgroup#4\egroup}}
+
+% Sections.
+\def\numsecentry#1#2#3#4{\dosecentry{#2\labelspace#1}{#4}}
+\let\appsecentry=\numsecentry
+\def\unnsecentry#1#2#3#4{\dosecentry{#1}{#4}}
+
+% Subsections.
+\def\numsubsecentry#1#2#3#4{\dosubsecentry{#2\labelspace#1}{#4}}
+\let\appsubsecentry=\numsubsecentry
+\def\unnsubsecentry#1#2#3#4{\dosubsecentry{#1}{#4}}
+
+% And subsubsections.
+\def\numsubsubsecentry#1#2#3#4{\dosubsubsecentry{#2\labelspace#1}{#4}}
+\let\appsubsubsecentry=\numsubsubsecentry
+\def\unnsubsubsecentry#1#2#3#4{\dosubsubsecentry{#1}{#4}}
+
+% This parameter controls the indentation of the various levels.
+% Same as \defaultparindent.
+\newdimen\tocindent \tocindent = 15pt
+
+% Now for the actual typesetting. In all these, #1 is the text and #2 is the
+% page number.
+%
+% If the toc has to be broken over pages, we want it to be at chapters
+% if at all possible; hence the \penalty.
+\def\dochapentry#1#2{%
+ \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip
+ \begingroup
+ \chapentryfonts
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+ \endgroup
+ \nobreak\vskip .25\baselineskip plus.1\baselineskip
+}
+
+\def\dosecentry#1#2{\begingroup
+ \secentryfonts \leftskip=\tocindent
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+\endgroup}
+
+\def\dosubsecentry#1#2{\begingroup
+ \subsecentryfonts \leftskip=2\tocindent
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+\endgroup}
+
+\def\dosubsubsecentry#1#2{\begingroup
+ \subsubsecentryfonts \leftskip=3\tocindent
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+\endgroup}
+
+% We use the same \entry macro as for the index entries.
+\let\tocentry = \entry
+
+% Space between chapter (or whatever) number and the title.
+\def\labelspace{\hskip1em \relax}
+
+\def\dopageno#1{{\rm #1}}
+\def\doshortpageno#1{{\rm #1}}
+
+\def\chapentryfonts{\secfonts \rm}
+\def\secentryfonts{\textfonts}
+\def\subsecentryfonts{\textfonts}
+\def\subsubsecentryfonts{\textfonts}
+
+
+\message{environments,}
+% @foo ... @end foo.
+
+% @point{}, @result{}, @expansion{}, @print{}, @equiv{}.
+%
+% Since these characters are used in examples, it should be an even number of
+% \tt widths. Each \tt character is 1en, so two makes it 1em.
+%
+\def\point{$\star$}
+\def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
+\def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}
+\def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
+\def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}
+
+% The @error{} command.
+% Adapted from the TeXbook's \boxit.
+%
+\newbox\errorbox
+%
+{\tentt \global\dimen0 = 3em}% Width of the box.
+\dimen2 = .55pt % Thickness of rules
+% The text. (`r' is open on the right, `e' somewhat less so on the left.)
+\setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt}
+%
+\setbox\errorbox=\hbox to \dimen0{\hfil
+ \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
+ \advance\hsize by -2\dimen2 % Rules.
+ \vbox{%
+ \hrule height\dimen2
+ \hbox{\vrule width\dimen2 \kern3pt % Space to left of text.
+ \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
+ \kern3pt\vrule width\dimen2}% Space to right.
+ \hrule height\dimen2}
+ \hfil}
+%
+\def\error{\leavevmode\lower.7ex\copy\errorbox}
+
+% @tex ... @end tex escapes into raw Tex temporarily.
+% One exception: @ is still an escape character, so that @end tex works.
+% But \@ or @@ will get a plain tex @ character.
+
+\envdef\tex{%
+ \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
+ \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
+ \catcode `\^=7 \catcode `\_=8 \catcode `\~=\active \let~=\tie
+ \catcode `\%=14
+ \catcode `\+=\other
+ \catcode `\"=\other
+ \catcode `\|=\other
+ \catcode `\<=\other
+ \catcode `\>=\other
+ \escapechar=`\\
+ %
+ \let\b=\ptexb
+ \let\bullet=\ptexbullet
+ \let\c=\ptexc
+ \let\,=\ptexcomma
+ \let\.=\ptexdot
+ \let\dots=\ptexdots
+ \let\equiv=\ptexequiv
+ \let\!=\ptexexclam
+ \let\i=\ptexi
+ \let\indent=\ptexindent
+ \let\noindent=\ptexnoindent
+ \let\{=\ptexlbrace
+ \let\+=\tabalign
+ \let\}=\ptexrbrace
+ \let\/=\ptexslash
+ \let\*=\ptexstar
+ \let\t=\ptext
+ \let\frenchspacing=\plainfrenchspacing
+ %
+ \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}%
+ \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}%
+ \def\@{@}%
+}
+% There is no need to define \Etex.
+
+% Define @lisp ... @end lisp.
+% @lisp environment forms a group so it can rebind things,
+% including the definition of @end lisp (which normally is erroneous).
+
+% Amount to narrow the margins by for @lisp.
+\newskip\lispnarrowing \lispnarrowing=0.4in
+
+% This is the definition that ^^M gets inside @lisp, @example, and other
+% such environments. \null is better than a space, since it doesn't
+% have any width.
+\def\lisppar{\null\endgraf}
+
+% This space is always present above and below environments.
+\newskip\envskipamount \envskipamount = 0pt
+
+% Make spacing and below environment symmetrical. We use \parskip here
+% to help in doing that, since in @example-like environments \parskip
+% is reset to zero; thus the \afterenvbreak inserts no space -- but the
+% start of the next paragraph will insert \parskip.
+%
+\def\aboveenvbreak{{%
+ % =10000 instead of <10000 because of a special case in \itemzzz and
+ % \sectionheading, q.v.
+ \ifnum \lastpenalty=10000 \else
+ \advance\envskipamount by \parskip
+ \endgraf
+ \ifdim\lastskip<\envskipamount
+ \removelastskip
+ % it's not a good place to break if the last penalty was \nobreak
+ % or better ...
+ \ifnum\lastpenalty<10000 \penalty-50 \fi
+ \vskip\envskipamount
+ \fi
+ \fi
+}}
+
+\let\afterenvbreak = \aboveenvbreak
+
+% \nonarrowing is a flag. If "set", @lisp etc don't narrow margins; it will
+% also clear it, so that its embedded environments do the narrowing again.
+\let\nonarrowing=\relax
+
+% @cartouche ... @end cartouche: draw rectangle w/rounded corners around
+% environment contents.
+\font\circle=lcircle10
+\newdimen\circthick
+\newdimen\cartouter\newdimen\cartinner
+\newskip\normbskip\newskip\normpskip\newskip\normlskip
+\circthick=\fontdimen8\circle
+%
+\def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth
+\def\ctr{{\hskip 6pt\circle\char'010}}
+\def\cbl{{\circle\char'012\hskip -6pt}}
+\def\cbr{{\hskip 6pt\circle\char'011}}
+\def\carttop{\hbox to \cartouter{\hskip\lskip
+ \ctl\leaders\hrule height\circthick\hfil\ctr
+ \hskip\rskip}}
+\def\cartbot{\hbox to \cartouter{\hskip\lskip
+ \cbl\leaders\hrule height\circthick\hfil\cbr
+ \hskip\rskip}}
+%
+\newskip\lskip\newskip\rskip
+
+\envdef\cartouche{%
+ \ifhmode\par\fi % can't be in the midst of a paragraph.
+ \startsavinginserts
+ \lskip=\leftskip \rskip=\rightskip
+ \leftskip=0pt\rightskip=0pt % we want these *outside*.
+ \cartinner=\hsize \advance\cartinner by-\lskip
+ \advance\cartinner by-\rskip
+ \cartouter=\hsize
+ \advance\cartouter by 18.4pt % allow for 3pt kerns on either
+ % side, and for 6pt waste from
+ % each corner char, and rule thickness
+ \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
+ % Flag to tell @lisp, etc., not to narrow margin.
+ \let\nonarrowing = t%
+ \vbox\bgroup
+ \baselineskip=0pt\parskip=0pt\lineskip=0pt
+ \carttop
+ \hbox\bgroup
+ \hskip\lskip
+ \vrule\kern3pt
+ \vbox\bgroup
+ \kern3pt
+ \hsize=\cartinner
+ \baselineskip=\normbskip
+ \lineskip=\normlskip
+ \parskip=\normpskip
+ \vskip -\parskip
+ \comment % For explanation, see the end of \def\group.
+}
+\def\Ecartouche{%
+ \ifhmode\par\fi
+ \kern3pt
+ \egroup
+ \kern3pt\vrule
+ \hskip\rskip
+ \egroup
+ \cartbot
+ \egroup
+ \checkinserts
+}
+
+
+% This macro is called at the beginning of all the @example variants,
+% inside a group.
+\def\nonfillstart{%
+ \aboveenvbreak
+ \hfuzz = 12pt % Don't be fussy
+ \sepspaces % Make spaces be word-separators rather than space tokens.
+ \let\par = \lisppar % don't ignore blank lines
+ \obeylines % each line of input is a line of output
+ \parskip = 0pt
+ \parindent = 0pt
+ \emergencystretch = 0pt % don't try to avoid overfull boxes
+ \ifx\nonarrowing\relax
+ \advance \leftskip by \lispnarrowing
+ \exdentamount=\lispnarrowing
+ \else
+ \let\nonarrowing = \relax
+ \fi
+ \let\exdent=\nofillexdent
+}
+
+% If you want all examples etc. small: @set dispenvsize small.
+% If you want even small examples the full size: @set dispenvsize nosmall.
+% This affects the following displayed environments:
+% @example, @display, @format, @lisp
+%
+\def\smallword{small}
+\def\nosmallword{nosmall}
+\let\SETdispenvsize\relax
+\def\setnormaldispenv{%
+ \ifx\SETdispenvsize\smallword
+ \smallexamplefonts \rm
+ \fi
+}
+\def\setsmalldispenv{%
+ \ifx\SETdispenvsize\nosmallword
+ \else
+ \smallexamplefonts \rm
+ \fi
+}
+
+% We often define two environments, @foo and @smallfoo.
+% Let's do it by one command:
+\def\makedispenv #1#2{
+ \expandafter\envdef\csname#1\endcsname {\setnormaldispenv #2}
+ \expandafter\envdef\csname small#1\endcsname {\setsmalldispenv #2}
+ \expandafter\let\csname E#1\endcsname \afterenvbreak
+ \expandafter\let\csname Esmall#1\endcsname \afterenvbreak
+}
+
+% Define two synonyms:
+\def\maketwodispenvs #1#2#3{
+ \makedispenv{#1}{#3}
+ \makedispenv{#2}{#3}
+}
+
+% @lisp: indented, narrowed, typewriter font; @example: same as @lisp.
+%
+% @smallexample and @smalllisp: use smaller fonts.
+% Originally contributed by Pavel@xerox.
+%
+\maketwodispenvs {lisp}{example}{%
+ \nonfillstart
+ \tt
+ \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special.
+ \gobble % eat return
+}
+
+% @display/@smalldisplay: same as @lisp except keep current font.
+%
+\makedispenv {display}{%
+ \nonfillstart
+ \gobble
+}
+
+% @format/@smallformat: same as @display except don't narrow margins.
+%
+\makedispenv{format}{%
+ \let\nonarrowing = t%
+ \nonfillstart
+ \gobble
+}
+
+% @flushleft: same as @format, but doesn't obey \SETdispenvsize.
+\envdef\flushleft{%
+ \let\nonarrowing = t%
+ \nonfillstart
+ \gobble
+}
+\let\Eflushleft = \afterenvbreak
+
+% @flushright.
+%
+\envdef\flushright{%
+ \let\nonarrowing = t%
+ \nonfillstart
+ \advance\leftskip by 0pt plus 1fill
+ \gobble
+}
+\let\Eflushright = \afterenvbreak
+
+
+% @quotation does normal linebreaking (hence we can't use \nonfillstart)
+% and narrows the margins. We keep \parskip nonzero in general, since
+% we're doing normal filling. So, when using \aboveenvbreak and
+% \afterenvbreak, temporarily make \parskip 0.
+%
+\envdef\quotation{%
+ {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
+ \parindent=0pt
+ %
+ % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
+ \ifx\nonarrowing\relax
+ \advance\leftskip by \lispnarrowing
+ \advance\rightskip by \lispnarrowing
+ \exdentamount = \lispnarrowing
+ \else
+ \let\nonarrowing = \relax
+ \fi
+ \parsearg\quotationlabel
+}
+
+% We have retained a nonzero parskip for the environment, since we're
+% doing normal filling.
+%
+\def\Equotation{%
+ \par
+ \ifx\quotationauthor\undefined\else
+ % indent a bit.
+ \leftline{\kern 2\leftskip \sl ---\quotationauthor}%
+ \fi
+ {\parskip=0pt \afterenvbreak}%
+}
+
+% If we're given an argument, typeset it in bold with a colon after.
+\def\quotationlabel#1{%
+ \def\temp{#1}%
+ \ifx\temp\empty \else
+ {\bf #1: }%
+ \fi
+}
+
+
+% LaTeX-like @verbatim...@end verbatim and @verb{<char>...<char>}
+% If we want to allow any <char> as delimiter,
+% we need the curly braces so that makeinfo sees the @verb command, eg:
+% `@verbx...x' would look like the '@verbx' command. --janneke@gnu.org
+%
+% [Knuth]: Donald Ervin Knuth, 1996. The TeXbook.
+%
+% [Knuth] p.344; only we need to do the other characters Texinfo sets
+% active too. Otherwise, they get lost as the first character on a
+% verbatim line.
+\def\dospecials{%
+ \do\ \do\\\do\{\do\}\do\$\do\&%
+ \do\#\do\^\do\^^K\do\_\do\^^A\do\%\do\~%
+ \do\<\do\>\do\|\do\@\do+\do\"%
+}
+%
+% [Knuth] p. 380
+\def\uncatcodespecials{%
+ \def\do##1{\catcode`##1=\other}\dospecials}
+%
+% [Knuth] pp. 380,381,391
+% Disable Spanish ligatures ?` and !` of \tt font
+\begingroup
+ \catcode`\`=\active\gdef`{\relax\lq}
+\endgroup
+%
+% Setup for the @verb command.
+%
+% Eight spaces for a tab
+\begingroup
+ \catcode`\^^I=\active
+ \gdef\tabeightspaces{\catcode`\^^I=\active\def^^I{\ \ \ \ \ \ \ \ }}
+\endgroup
+%
+\def\setupverb{%
+ \tt % easiest (and conventionally used) font for verbatim
+ \def\par{\leavevmode\endgraf}%
+ \catcode`\`=\active
+ \tabeightspaces
+ % Respect line breaks,
+ % print special symbols as themselves, and
+ % make each space count
+ % must do in this order:
+ \obeylines \uncatcodespecials \sepspaces
+}
+
+% Setup for the @verbatim environment
+%
+% Real tab expansion
+\newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount
+%
+\def\starttabbox{\setbox0=\hbox\bgroup}
+\begingroup
+ \catcode`\^^I=\active
+ \gdef\tabexpand{%
+ \catcode`\^^I=\active
+ \def^^I{\leavevmode\egroup
+ \dimen0=\wd0 % the width so far, or since the previous tab
+ \divide\dimen0 by\tabw
+ \multiply\dimen0 by\tabw % compute previous multiple of \tabw
+ \advance\dimen0 by\tabw % advance to next multiple of \tabw
+ \wd0=\dimen0 \box0 \starttabbox
+ }%
+ }
+\endgroup
+\def\setupverbatim{%
+ \let\nonarrowing = t%
+ \nonfillstart
+ % Easiest (and conventionally used) font for verbatim
+ \tt
+ \def\par{\leavevmode\egroup\box0\endgraf}%
+ \catcode`\`=\active
+ \tabexpand
+ % Respect line breaks,
+ % print special symbols as themselves, and
+ % make each space count
+ % must do in this order:
+ \obeylines \uncatcodespecials \sepspaces
+ \everypar{\starttabbox}%
+}
+
+% Do the @verb magic: verbatim text is quoted by unique
+% delimiter characters. Before first delimiter expect a
+% right brace, after last delimiter expect closing brace:
+%
+% \def\doverb'{'<char>#1<char>'}'{#1}
+%
+% [Knuth] p. 382; only eat outer {}
+\begingroup
+ \catcode`[=1\catcode`]=2\catcode`\{=\other\catcode`\}=\other
+ \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next]
+\endgroup
+%
+\def\verb{\begingroup\setupverb\doverb}
+%
+%
+% Do the @verbatim magic: define the macro \doverbatim so that
+% the (first) argument ends when '@end verbatim' is reached, ie:
+%
+% \def\doverbatim#1@end verbatim{#1}
+%
+% For Texinfo it's a lot easier than for LaTeX,
+% because texinfo's \verbatim doesn't stop at '\end{verbatim}':
+% we need not redefine '\', '{' and '}'.
+%
+% Inspired by LaTeX's verbatim command set [latex.ltx]
+%
+\begingroup
+ \catcode`\ =\active
+ \obeylines %
+ % ignore everything up to the first ^^M, that's the newline at the end
+ % of the @verbatim input line itself. Otherwise we get an extra blank
+ % line in the output.
+ \xdef\doverbatim#1^^M#2@end verbatim{#2\noexpand\end\gobble verbatim}%
+ % We really want {...\end verbatim} in the body of the macro, but
+ % without the active space; thus we have to use \xdef and \gobble.
+\endgroup
+%
+\envdef\verbatim{%
+ \setupverbatim\doverbatim
+}
+\let\Everbatim = \afterenvbreak
+
+
+% @verbatiminclude FILE - insert text of file in verbatim environment.
+%
+\def\verbatiminclude{\parseargusing\filenamecatcodes\doverbatiminclude}
+%
+\def\doverbatiminclude#1{%
+ {%
+ \makevalueexpandable
+ \setupverbatim
+ \input #1
+ \afterenvbreak
+ }%
+}
+
+% @copying ... @end copying.
+% Save the text away for @insertcopying later.
+%
+% We save the uninterpreted tokens, rather than creating a box.
+% Saving the text in a box would be much easier, but then all the
+% typesetting commands (@smallbook, font changes, etc.) have to be done
+% beforehand -- and a) we want @copying to be done first in the source
+% file; b) letting users define the frontmatter in as flexible order as
+% possible is very desirable.
+%
+\def\copying{\checkenv{}\begingroup\scanargctxt\docopying}
+\def\docopying#1@end copying{\endgroup\def\copyingtext{#1}}
+%
+\def\insertcopying{%
+ \begingroup
+ \parindent = 0pt % paragraph indentation looks wrong on title page
+ \scanexp\copyingtext
+ \endgroup
+}
+
+\message{defuns,}
+% @defun etc.
+
+\newskip\defbodyindent \defbodyindent=.4in
+\newskip\defargsindent \defargsindent=50pt
+\newskip\deflastargmargin \deflastargmargin=18pt
+
+% Start the processing of @deffn:
+\def\startdefun{%
+ \ifnum\lastpenalty<10000
+ \medbreak
+ \else
+ % If there are two @def commands in a row, we'll have a \nobreak,
+ % which is there to keep the function description together with its
+ % header. But if there's nothing but headers, we need to allow a
+ % break somewhere. Check specifically for penalty 10002, inserted
+ % by \defargscommonending, instead of 10000, since the sectioning
+ % commands also insert a nobreak penalty, and we don't want to allow
+ % a break between a section heading and a defun.
+ %
+ \ifnum\lastpenalty=10002 \penalty2000 \fi
+ %
+ % Similarly, after a section heading, do not allow a break.
+ % But do insert the glue.
+ \medskip % preceded by discardable penalty, so not a breakpoint
+ \fi
+ %
+ \parindent=0in
+ \advance\leftskip by \defbodyindent
+ \exdentamount=\defbodyindent
+}
+
+\def\dodefunx#1{%
+ % First, check whether we are in the right environment:
+ \checkenv#1%
+ %
+ % As above, allow line break if we have multiple x headers in a row.
+ % It's not a great place, though.
+ \ifnum\lastpenalty=10002 \penalty3000 \fi
+ %
+ % And now, it's time to reuse the body of the original defun:
+ \expandafter\gobbledefun#1%
+}
+\def\gobbledefun#1\startdefun{}
+
+% \printdefunline \deffnheader{text}
+%
+\def\printdefunline#1#2{%
+ \begingroup
+ % call \deffnheader:
+ #1#2 \endheader
+ % common ending:
+ \interlinepenalty = 10000
+ \advance\rightskip by 0pt plus 1fil
+ \endgraf
+ \nobreak\vskip -\parskip
+ \penalty 10002 % signal to \startdefun and \dodefunx
+ % Some of the @defun-type tags do not enable magic parentheses,
+ % rendering the following check redundant. But we don't optimize.
+ \checkparencounts
+ \endgroup
+}
+
+\def\Edefun{\endgraf\medbreak}
+
+% \makedefun{deffn} creates \deffn, \deffnx and \Edeffn;
+% the only thing remainnig is to define \deffnheader.
+%
+\def\makedefun#1{%
+ \expandafter\let\csname E#1\endcsname = \Edefun
+ \edef\temp{\noexpand\domakedefun
+ \makecsname{#1}\makecsname{#1x}\makecsname{#1header}}%
+ \temp
+}
+
+% \domakedefun \deffn \deffnx \deffnheader
+%
+% Define \deffn and \deffnx, without parameters.
+% \deffnheader has to be defined explicitly.
+%
+\def\domakedefun#1#2#3{%
+ \envdef#1{%
+ \startdefun
+ \parseargusing\activeparens{\printdefunline#3}%
+ }%
+ \def#2{\dodefunx#1}%
+ \def#3%
+}
+
+%%% Untyped functions:
+
+% @deffn category name args
+\makedefun{deffn}{\deffngeneral{}}
+
+% @deffn category class name args
+\makedefun{defop}#1 {\defopon{#1\ \putwordon}}
+
+% \defopon {category on}class name args
+\def\defopon#1#2 {\deffngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} }
+
+% \deffngeneral {subind}category name args
+%
+\def\deffngeneral#1#2 #3 #4\endheader{%
+ % Remember that \dosubind{fn}{foo}{} is equivalent to \doind{fn}{foo}.
+ \dosubind{fn}{\code{#3}}{#1}%
+ \defname{#2}{}{#3}\magicamp\defunargs{#4\unskip}%
+}
+
+%%% Typed functions:
+
+% @deftypefn category type name args
+\makedefun{deftypefn}{\deftypefngeneral{}}
+
+% @deftypeop category class type name args
+\makedefun{deftypeop}#1 {\deftypeopon{#1\ \putwordon}}
+
+% \deftypeopon {category on}class type name args
+\def\deftypeopon#1#2 {\deftypefngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} }
+
+% \deftypefngeneral {subind}category type name args
+%
+\def\deftypefngeneral#1#2 #3 #4 #5\endheader{%
+ \dosubind{fn}{\code{#4}}{#1}%
+ \defname{#2}{#3}{#4}\defunargs{#5\unskip}%
+}
+
+%%% Typed variables:
+
+% @deftypevr category type var args
+\makedefun{deftypevr}{\deftypecvgeneral{}}
+
+% @deftypecv category class type var args
+\makedefun{deftypecv}#1 {\deftypecvof{#1\ \putwordof}}
+
+% \deftypecvof {category of}class type var args
+\def\deftypecvof#1#2 {\deftypecvgeneral{\putwordof\ \code{#2}}{#1\ \code{#2}} }
+
+% \deftypecvgeneral {subind}category type var args
+%
+\def\deftypecvgeneral#1#2 #3 #4 #5\endheader{%
+ \dosubind{vr}{\code{#4}}{#1}%
+ \defname{#2}{#3}{#4}\defunargs{#5\unskip}%
+}
+
+%%% Untyped variables:
+
+% @defvr category var args
+\makedefun{defvr}#1 {\deftypevrheader{#1} {} }
+
+% @defcv category class var args
+\makedefun{defcv}#1 {\defcvof{#1\ \putwordof}}
+
+% \defcvof {category of}class var args
+\def\defcvof#1#2 {\deftypecvof{#1}#2 {} }
+
+%%% Type:
+% @deftp category name args
+\makedefun{deftp}#1 #2 #3\endheader{%
+ \doind{tp}{\code{#2}}%
+ \defname{#1}{}{#2}\defunargs{#3\unskip}%
+}
+
+% Remaining @defun-like shortcuts:
+\makedefun{defun}{\deffnheader{\putwordDeffunc} }
+\makedefun{defmac}{\deffnheader{\putwordDefmac} }
+\makedefun{defspec}{\deffnheader{\putwordDefspec} }
+\makedefun{deftypefun}{\deftypefnheader{\putwordDeffunc} }
+\makedefun{defvar}{\defvrheader{\putwordDefvar} }
+\makedefun{defopt}{\defvrheader{\putwordDefopt} }
+\makedefun{deftypevar}{\deftypevrheader{\putwordDefvar} }
+\makedefun{defmethod}{\defopon\putwordMethodon}
+\makedefun{deftypemethod}{\deftypeopon\putwordMethodon}
+\makedefun{defivar}{\defcvof\putwordInstanceVariableof}
+\makedefun{deftypeivar}{\deftypecvof\putwordInstanceVariableof}
+
+% \defname, which formats the name of the @def (not the args).
+% #1 is the category, such as "Function".
+% #2 is the return type, if any.
+% #3 is the function name.
+%
+% We are followed by (but not passed) the arguments, if any.
+%
+\def\defname#1#2#3{%
+ % Get the values of \leftskip and \rightskip as they were outside the @def...
+ \advance\leftskip by -\defbodyindent
+ %
+ % How we'll format the type name. Putting it in brackets helps
+ % distinguish it from the body text that may end up on the next line
+ % just below it.
+ \def\temp{#1}%
+ \setbox0=\hbox{\kern\deflastargmargin \ifx\temp\empty\else [\rm\temp]\fi}
+ %
+ % Figure out line sizes for the paragraph shape.
+ % The first line needs space for \box0; but if \rightskip is nonzero,
+ % we need only space for the part of \box0 which exceeds it:
+ \dimen0=\hsize \advance\dimen0 by -\wd0 \advance\dimen0 by \rightskip
+ % The continuations:
+ \dimen2=\hsize \advance\dimen2 by -\defargsindent
+ % (plain.tex says that \dimen1 should be used only as global.)
+ \parshape 2 0in \dimen0 \defargsindent \dimen2
+ %
+ % Put the type name to the right margin.
+ \noindent
+ \hbox to 0pt{%
+ \hfil\box0 \kern-\hsize
+ % \hsize has to be shortened this way:
+ \kern\leftskip
+ % Intentionally do not respect \rightskip, since we need the space.
+ }%
+ %
+ % Allow all lines to be underfull without complaint:
+ \tolerance=10000 \hbadness=10000
+ \exdentamount=\defbodyindent
+ {%
+ % defun fonts. We use typewriter by default (used to be bold) because:
+ % . we're printing identifiers, they should be in tt in principle.
+ % . in languages with many accents, such as Czech or French, it's
+ % common to leave accents off identifiers. The result looks ok in
+ % tt, but exceedingly strange in rm.
+ % . we don't want -- and --- to be treated as ligatures.
+ % . this still does not fix the ?` and !` ligatures, but so far no
+ % one has made identifiers using them :).
+ \df \tt
+ \def\temp{#2}% return value type
+ \ifx\temp\empty\else \tclose{\temp} \fi
+ #3% output function name
+ }%
+ {\rm\enskip}% hskip 0.5 em of \tenrm
+ %
+ \boldbrax
+ % arguments will be output next, if any.
+}
+
+% Print arguments in slanted roman (not ttsl), inconsistently with using
+% tt for the name. This is because literal text is sometimes needed in
+% the argument list (groff manual), and ttsl and tt are not very
+% distinguishable. Prevent hyphenation at `-' chars.
+%
+\def\defunargs#1{%
+ % use sl by default (not ttsl),
+ % tt for the names.
+ \df \sl \hyphenchar\font=0
+ %
+ % On the other hand, if an argument has two dashes (for instance), we
+ % want a way to get ttsl. Let's try @var for that.
+ \let\var=\ttslanted
+ #1%
+ \sl\hyphenchar\font=45
+}
+
+% We want ()&[] to print specially on the defun line.
+%
+\def\activeparens{%
+ \catcode`\(=\active \catcode`\)=\active
+ \catcode`\[=\active \catcode`\]=\active
+ \catcode`\&=\active
+}
+
+% Make control sequences which act like normal parenthesis chars.
+\let\lparen = ( \let\rparen = )
+
+% Be sure that we always have a definition for `(', etc. For example,
+% if the fn name has parens in it, \boldbrax will not be in effect yet,
+% so TeX would otherwise complain about undefined control sequence.
+{
+ \activeparens
+ \global\let(=\lparen \global\let)=\rparen
+ \global\let[=\lbrack \global\let]=\rbrack
+ \global\let& = \&
+
+ \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
+ \gdef\magicamp{\let&=\amprm}
+}
+
+\newcount\parencount
+
+% If we encounter &foo, then turn on ()-hacking afterwards
+\newif\ifampseen
+\def\amprm#1 {\ampseentrue{\bf\ }}
+
+\def\parenfont{%
+ \ifampseen
+ % At the first level, print parens in roman,
+ % otherwise use the default font.
+ \ifnum \parencount=1 \rm \fi
+ \else
+ % The \sf parens (in \boldbrax) actually are a little bolder than
+ % the contained text. This is especially needed for [ and ] .
+ \sf
+ \fi
+}
+\def\infirstlevel#1{%
+ \ifampseen
+ \ifnum\parencount=1
+ #1%
+ \fi
+ \fi
+}
+\def\bfafterword#1 {#1 \bf}
+
+\def\opnr{%
+ \global\advance\parencount by 1
+ {\parenfont(}%
+ \infirstlevel \bfafterword
+}
+\def\clnr{%
+ {\parenfont)}%
+ \infirstlevel \sl
+ \global\advance\parencount by -1
+}
+
+\newcount\brackcount
+\def\lbrb{%
+ \global\advance\brackcount by 1
+ {\bf[}%
+}
+\def\rbrb{%
+ {\bf]}%
+ \global\advance\brackcount by -1
+}
+
+\def\checkparencounts{%
+ \ifnum\parencount=0 \else \badparencount \fi
+ \ifnum\brackcount=0 \else \badbrackcount \fi
+}
+\def\badparencount{%
+ \errmessage{Unbalanced parentheses in @def}%
+ \global\parencount=0
+}
+\def\badbrackcount{%
+ \errmessage{Unbalanced square braces in @def}%
+ \global\brackcount=0
+}
+
+
+\message{macros,}
+% @macro.
+
+% To do this right we need a feature of e-TeX, \scantokens,
+% which we arrange to emulate with a temporary file in ordinary TeX.
+\ifx\eTeXversion\undefined
+ \newwrite\macscribble
+ \def\scantokens#1{%
+ \toks0={#1}%
+ \immediate\openout\macscribble=\jobname.tmp
+ \immediate\write\macscribble{\the\toks0}%
+ \immediate\closeout\macscribble
+ \input \jobname.tmp
+ }
+\fi
+
+\def\scanmacro#1{%
+ \begingroup
+ \newlinechar`\^^M
+ \let\xeatspaces\eatspaces
+ % Undo catcode changes of \startcontents and \doprintindex
+ % When called from @insertcopying or (short)caption, we need active
+ % backslash to get it printed correctly. Previously, we had
+ % \catcode`\\=\other instead. We'll see whether a problem appears
+ % with macro expansion. --kasal, 19aug04
+ \catcode`\@=0 \catcode`\\=\active \escapechar=`\@
+ % ... and \example
+ \spaceisspace
+ %
+ % Append \endinput to make sure that TeX does not see the ending newline.
+ %
+ % I've verified that it is necessary both for e-TeX and for ordinary TeX
+ % --kasal, 29nov03
+ \scantokens{#1\endinput}%
+ \endgroup
+}
+
+\def\scanexp#1{%
+ \edef\temp{\noexpand\scanmacro{#1}}%
+ \temp
+}
+
+\newcount\paramno % Count of parameters
+\newtoks\macname % Macro name
+\newif\ifrecursive % Is it recursive?
+
+% List of all defined macros in the form
+% \definedummyword\macro1\definedummyword\macro2...
+% Currently is also contains all @aliases; the list can be split
+% if there is a need.
+\def\macrolist{}
+
+% Add the macro to \macrolist
+\def\addtomacrolist#1{\expandafter \addtomacrolistxxx \csname#1\endcsname}
+\def\addtomacrolistxxx#1{%
+ \toks0 = \expandafter{\macrolist\definedummyword#1}%
+ \xdef\macrolist{\the\toks0}%
+}
+
+% Utility routines.
+% This does \let #1 = #2, with \csnames; that is,
+% \let \csname#1\endcsname = \csname#2\endcsname
+% (except of course we have to play expansion games).
+%
+\def\cslet#1#2{%
+ \expandafter\let
+ \csname#1\expandafter\endcsname
+ \csname#2\endcsname
+}
+
+% Trim leading and trailing spaces off a string.
+% Concepts from aro-bend problem 15 (see CTAN).
+{\catcode`\@=11
+\gdef\eatspaces #1{\expandafter\trim@\expandafter{#1 }}
+\gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@}
+\gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @}
+\def\unbrace#1{#1}
+\unbrace{\gdef\trim@@@ #1 } #2@{#1}
+}
+
+% Trim a single trailing ^^M off a string.
+{\catcode`\^^M=\other \catcode`\Q=3%
+\gdef\eatcr #1{\eatcra #1Q^^MQ}%
+\gdef\eatcra#1^^MQ{\eatcrb#1Q}%
+\gdef\eatcrb#1Q#2Q{#1}%
+}
+
+% Macro bodies are absorbed as an argument in a context where
+% all characters are catcode 10, 11 or 12, except \ which is active
+% (as in normal texinfo). It is necessary to change the definition of \.
+
+% It's necessary to have hard CRs when the macro is executed. This is
+% done by making ^^M (\endlinechar) catcode 12 when reading the macro
+% body, and then making it the \newlinechar in \scanmacro.
+
+\def\scanctxt{%
+ \catcode`\"=\other
+ \catcode`\+=\other
+ \catcode`\<=\other
+ \catcode`\>=\other
+ \catcode`\@=\other
+ \catcode`\^=\other
+ \catcode`\_=\other
+ \catcode`\|=\other
+ \catcode`\~=\other
+}
+
+\def\scanargctxt{%
+ \scanctxt
+ \catcode`\\=\other
+ \catcode`\^^M=\other
+}
+
+\def\macrobodyctxt{%
+ \scanctxt
+ \catcode`\{=\other
+ \catcode`\}=\other
+ \catcode`\^^M=\other
+ \usembodybackslash
+}
+
+\def\macroargctxt{%
+ \scanctxt
+ \catcode`\\=\other
+}
+
+% \mbodybackslash is the definition of \ in @macro bodies.
+% It maps \foo\ => \csname macarg.foo\endcsname => #N
+% where N is the macro parameter number.
+% We define \csname macarg.\endcsname to be \realbackslash, so
+% \\ in macro replacement text gets you a backslash.
+
+{\catcode`@=0 @catcode`@\=@active
+ @gdef@usembodybackslash{@let\=@mbodybackslash}
+ @gdef@mbodybackslash#1\{@csname macarg.#1@endcsname}
+}
+\expandafter\def\csname macarg.\endcsname{\realbackslash}
+
+\def\macro{\recursivefalse\parsearg\macroxxx}
+\def\rmacro{\recursivetrue\parsearg\macroxxx}
+
+\def\macroxxx#1{%
+ \getargs{#1}% now \macname is the macname and \argl the arglist
+ \ifx\argl\empty % no arguments
+ \paramno=0%
+ \else
+ \expandafter\parsemargdef \argl;%
+ \fi
+ \if1\csname ismacro.\the\macname\endcsname
+ \message{Warning: redefining \the\macname}%
+ \else
+ \expandafter\ifx\csname \the\macname\endcsname \relax
+ \else \errmessage{Macro name \the\macname\space already defined}\fi
+ \global\cslet{macsave.\the\macname}{\the\macname}%
+ \global\expandafter\let\csname ismacro.\the\macname\endcsname=1%
+ \addtomacrolist{\the\macname}%
+ \fi
+ \begingroup \macrobodyctxt
+ \ifrecursive \expandafter\parsermacbody
+ \else \expandafter\parsemacbody
+ \fi}
+
+\parseargdef\unmacro{%
+ \if1\csname ismacro.#1\endcsname
+ \global\cslet{#1}{macsave.#1}%
+ \global\expandafter\let \csname ismacro.#1\endcsname=0%
+ % Remove the macro name from \macrolist:
+ \begingroup
+ \expandafter\let\csname#1\endcsname \relax
+ \let\definedummyword\unmacrodo
+ \xdef\macrolist{\macrolist}%
+ \endgroup
+ \else
+ \errmessage{Macro #1 not defined}%
+ \fi
+}
+
+% Called by \do from \dounmacro on each macro. The idea is to omit any
+% macro definitions that have been changed to \relax.
+%
+\def\unmacrodo#1{%
+ \ifx #1\relax
+ % remove this
+ \else
+ \noexpand\definedummyword \noexpand#1%
+ \fi
+}
+
+% This makes use of the obscure feature that if the last token of a
+% <parameter list> is #, then the preceding argument is delimited by
+% an opening brace, and that opening brace is not consumed.
+\def\getargs#1{\getargsxxx#1{}}
+\def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
+\def\getmacname #1 #2\relax{\macname={#1}}
+\def\getmacargs#1{\def\argl{#1}}
+
+% Parse the optional {params} list. Set up \paramno and \paramlist
+% so \defmacro knows what to do. Define \macarg.blah for each blah
+% in the params list, to be ##N where N is the position in that list.
+% That gets used by \mbodybackslash (above).
+
+% We need to get `macro parameter char #' into several definitions.
+% The technique used is stolen from LaTeX: let \hash be something
+% unexpandable, insert that wherever you need a #, and then redefine
+% it to # just before using the token list produced.
+%
+% The same technique is used to protect \eatspaces till just before
+% the macro is used.
+
+\def\parsemargdef#1;{\paramno=0\def\paramlist{}%
+ \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,}
+\def\parsemargdefxxx#1,{%
+ \if#1;\let\next=\relax
+ \else \let\next=\parsemargdefxxx
+ \advance\paramno by 1%
+ \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
+ {\xeatspaces{\hash\the\paramno}}%
+ \edef\paramlist{\paramlist\hash\the\paramno,}%
+ \fi\next}
+
+% These two commands read recursive and nonrecursive macro bodies.
+% (They're different since rec and nonrec macros end differently.)
+
+\long\def\parsemacbody#1@end macro%
+{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
+\long\def\parsermacbody#1@end rmacro%
+{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
+
+% This defines the macro itself. There are six cases: recursive and
+% nonrecursive macros of zero, one, and many arguments.
+% Much magic with \expandafter here.
+% \xdef is used so that macro definitions will survive the file
+% they're defined in; @include reads the file inside a group.
+\def\defmacro{%
+ \let\hash=##% convert placeholders to macro parameter chars
+ \ifrecursive
+ \ifcase\paramno
+ % 0
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \noexpand\scanmacro{\temp}}%
+ \or % 1
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \noexpand\braceorline
+ \expandafter\noexpand\csname\the\macname xxx\endcsname}%
+ \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
+ \egroup\noexpand\scanmacro{\temp}}%
+ \else % many
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \noexpand\csname\the\macname xx\endcsname}%
+ \expandafter\xdef\csname\the\macname xx\endcsname##1{%
+ \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
+ \expandafter\expandafter
+ \expandafter\xdef
+ \expandafter\expandafter
+ \csname\the\macname xxx\endcsname
+ \paramlist{\egroup\noexpand\scanmacro{\temp}}%
+ \fi
+ \else
+ \ifcase\paramno
+ % 0
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \noexpand\norecurse{\the\macname}%
+ \noexpand\scanmacro{\temp}\egroup}%
+ \or % 1
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \noexpand\braceorline
+ \expandafter\noexpand\csname\the\macname xxx\endcsname}%
+ \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
+ \egroup
+ \noexpand\norecurse{\the\macname}%
+ \noexpand\scanmacro{\temp}\egroup}%
+ \else % many
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \expandafter\noexpand\csname\the\macname xx\endcsname}%
+ \expandafter\xdef\csname\the\macname xx\endcsname##1{%
+ \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
+ \expandafter\expandafter
+ \expandafter\xdef
+ \expandafter\expandafter
+ \csname\the\macname xxx\endcsname
+ \paramlist{%
+ \egroup
+ \noexpand\norecurse{\the\macname}%
+ \noexpand\scanmacro{\temp}\egroup}%
+ \fi
+ \fi}
+
+\def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
+
+% \braceorline decides whether the next nonwhitespace character is a
+% {. If so it reads up to the closing }, if not, it reads the whole
+% line. Whatever was read is then fed to the next control sequence
+% as an argument (by \parsebrace or \parsearg)
+\def\braceorline#1{\let\next=#1\futurelet\nchar\braceorlinexxx}
+\def\braceorlinexxx{%
+ \ifx\nchar\bgroup\else
+ \expandafter\parsearg
+ \fi \next}
+
+
+% @alias.
+% We need some trickery to remove the optional spaces around the equal
+% sign. Just make them active and then expand them all to nothing.
+\def\alias{\parseargusing\obeyspaces\aliasxxx}
+\def\aliasxxx #1{\aliasyyy#1\relax}
+\def\aliasyyy #1=#2\relax{%
+ {%
+ \expandafter\let\obeyedspace=\empty
+ \addtomacrolist{#1}%
+ \xdef\next{\global\let\makecsname{#1}=\makecsname{#2}}%
+ }%
+ \next
+}
+
+
+\message{cross references,}
+
+\newwrite\auxfile
+
+\newif\ifhavexrefs % True if xref values are known.
+\newif\ifwarnedxrefs % True if we warned once that they aren't known.
+
+% @inforef is relatively simple.
+\def\inforef #1{\inforefzzz #1,,,,**}
+\def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}},
+ node \samp{\ignorespaces#1{}}}
+
+% @node's only job in TeX is to define \lastnode, which is used in
+% cross-references. The @node line might or might not have commas, and
+% might or might not have spaces before the first comma, like:
+% @node foo , bar , ...
+% We don't want such trailing spaces in the node name.
+%
+\parseargdef\node{\checkenv{}\donode #1 ,\finishnodeparse}
+%
+% also remove a trailing comma, in case of something like this:
+% @node Help-Cross, , , Cross-refs
+\def\donode#1 ,#2\finishnodeparse{\dodonode #1,\finishnodeparse}
+\def\dodonode#1,#2\finishnodeparse{\gdef\lastnode{#1}}
+
+\let\nwnode=\node
+\let\lastnode=\empty
+
+% Write a cross-reference definition for the current node. #1 is the
+% type (Ynumbered, Yappendix, Ynothing).
+%
+\def\donoderef#1{%
+ \ifx\lastnode\empty\else
+ \setref{\lastnode}{#1}%
+ \global\let\lastnode=\empty
+ \fi
+}
+
+% @anchor{NAME} -- define xref target at arbitrary point.
+%
+\newcount\savesfregister
+%
+\def\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi}
+\def\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi}
+\def\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces}
+
+% \setref{NAME}{SNT} defines a cross-reference point NAME (a node or an
+% anchor), which consists of three parts:
+% 1) NAME-title - the current sectioning name taken from \thissection,
+% or the anchor name.
+% 2) NAME-snt - section number and type, passed as the SNT arg, or
+% empty for anchors.
+% 3) NAME-pg - the page number.
+%
+% This is called from \donoderef, \anchor, and \dofloat. In the case of
+% floats, there is an additional part, which is not written here:
+% 4) NAME-lof - the text as it should appear in a @listoffloats.
+%
+\def\setref#1#2{%
+ \pdfmkdest{#1}%
+ \iflinks
+ {%
+ \atdummies % preserve commands, but don't expand them
+ \edef\writexrdef##1##2{%
+ \write\auxfile{@xrdef{#1-% #1 of \setref, expanded by the \edef
+ ##1}{##2}}% these are parameters of \writexrdef
+ }%
+ \toks0 = \expandafter{\thissection}%
+ \immediate \writexrdef{title}{\the\toks0 }%
+ \immediate \writexrdef{snt}{\csname #2\endcsname}% \Ynumbered etc.
+ \writexrdef{pg}{\folio}% will be written later, during \shipout
+ }%
+ \fi
+}
+
+% @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is
+% the node name, #2 the name of the Info cross-reference, #3 the printed
+% node name, #4 the name of the Info file, #5 the name of the printed
+% manual. All but the node name can be omitted.
+%
+\def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
+\def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
+\def\ref#1{\xrefX[#1,,,,,,,]}
+\def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
+ \unsepspaces
+ \def\printedmanual{\ignorespaces #5}%
+ \def\printedrefname{\ignorespaces #3}%
+ \setbox1=\hbox{\printedmanual\unskip}%
+ \setbox0=\hbox{\printedrefname\unskip}%
+ \ifdim \wd0 = 0pt
+ % No printed node name was explicitly given.
+ \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax
+ % Use the node name inside the square brackets.
+ \def\printedrefname{\ignorespaces #1}%
+ \else
+ % Use the actual chapter/section title appear inside
+ % the square brackets. Use the real section title if we have it.
+ \ifdim \wd1 > 0pt
+ % It is in another manual, so we don't have it.
+ \def\printedrefname{\ignorespaces #1}%
+ \else
+ \ifhavexrefs
+ % We know the real title if we have the xref values.
+ \def\printedrefname{\refx{#1-title}{}}%
+ \else
+ % Otherwise just copy the Info node name.
+ \def\printedrefname{\ignorespaces #1}%
+ \fi%
+ \fi
+ \fi
+ \fi
+ %
+ % Make link in pdf output.
+ \ifpdf
+ \leavevmode
+ \getfilename{#4}%
+ {\turnoffactive
+ % See comments at \activebackslashdouble.
+ {\activebackslashdouble \xdef\pdfxrefdest{#1}%
+ \backslashparens\pdfxrefdest}%
+ %
+ \ifnum\filenamelength>0
+ \startlink attr{/Border [0 0 0]}%
+ goto file{\the\filename.pdf} name{\pdfxrefdest}%
+ \else
+ \startlink attr{/Border [0 0 0]}%
+ goto name{\pdfmkpgn{\pdfxrefdest}}%
+ \fi
+ }%
+ \linkcolor
+ \fi
+ %
+ % Float references are printed completely differently: "Figure 1.2"
+ % instead of "[somenode], p.3". We distinguish them by the
+ % LABEL-title being set to a magic string.
+ {%
+ % Have to otherify everything special to allow the \csname to
+ % include an _ in the xref name, etc.
+ \indexnofonts
+ \turnoffactive
+ \expandafter\global\expandafter\let\expandafter\Xthisreftitle
+ \csname XR#1-title\endcsname
+ }%
+ \iffloat\Xthisreftitle
+ % If the user specified the print name (third arg) to the ref,
+ % print it instead of our usual "Figure 1.2".
+ \ifdim\wd0 = 0pt
+ \refx{#1-snt}%
+ \else
+ \printedrefname
+ \fi
+ %
+ % if the user also gave the printed manual name (fifth arg), append
+ % "in MANUALNAME".
+ \ifdim \wd1 > 0pt
+ \space \putwordin{} \cite{\printedmanual}%
+ \fi
+ \else
+ % node/anchor (non-float) references.
+ %
+ % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
+ % insert empty discretionaries after hyphens, which means that it will
+ % not find a line break at a hyphen in a node names. Since some manuals
+ % are best written with fairly long node names, containing hyphens, this
+ % is a loss. Therefore, we give the text of the node name again, so it
+ % is as if TeX is seeing it for the first time.
+ \ifdim \wd1 > 0pt
+ \putwordsection{} ``\printedrefname'' \putwordin{} \cite{\printedmanual}%
+ \else
+ % _ (for example) has to be the character _ for the purposes of the
+ % control sequence corresponding to the node, but it has to expand
+ % into the usual \leavevmode...\vrule stuff for purposes of
+ % printing. So we \turnoffactive for the \refx-snt, back on for the
+ % printing, back off for the \refx-pg.
+ {\turnoffactive
+ % Only output a following space if the -snt ref is nonempty; for
+ % @unnumbered and @anchor, it won't be.
+ \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}%
+ \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
+ }%
+ % output the `[mynode]' via a macro so it can be overridden.
+ \xrefprintnodename\printedrefname
+ %
+ % But we always want a comma and a space:
+ ,\space
+ %
+ % output the `page 3'.
+ \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
+ \fi
+ \fi
+ \endlink
+\endgroup}
+
+% This macro is called from \xrefX for the `[nodename]' part of xref
+% output. It's a separate macro only so it can be changed more easily,
+% since square brackets don't work well in some documents. Particularly
+% one that Bob is working on :).
+%
+\def\xrefprintnodename#1{[#1]}
+
+% Things referred to by \setref.
+%
+\def\Ynothing{}
+\def\Yomitfromtoc{}
+\def\Ynumbered{%
+ \ifnum\secno=0
+ \putwordChapter@tie \the\chapno
+ \else \ifnum\subsecno=0
+ \putwordSection@tie \the\chapno.\the\secno
+ \else \ifnum\subsubsecno=0
+ \putwordSection@tie \the\chapno.\the\secno.\the\subsecno
+ \else
+ \putwordSection@tie \the\chapno.\the\secno.\the\subsecno.\the\subsubsecno
+ \fi\fi\fi
+}
+\def\Yappendix{%
+ \ifnum\secno=0
+ \putwordAppendix@tie @char\the\appendixno{}%
+ \else \ifnum\subsecno=0
+ \putwordSection@tie @char\the\appendixno.\the\secno
+ \else \ifnum\subsubsecno=0
+ \putwordSection@tie @char\the\appendixno.\the\secno.\the\subsecno
+ \else
+ \putwordSection@tie
+ @char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno
+ \fi\fi\fi
+}
+
+% Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
+% If its value is nonempty, SUFFIX is output afterward.
+%
+\def\refx#1#2{%
+ {%
+ \indexnofonts
+ \otherbackslash
+ \expandafter\global\expandafter\let\expandafter\thisrefX
+ \csname XR#1\endcsname
+ }%
+ \ifx\thisrefX\relax
+ % If not defined, say something at least.
+ \angleleft un\-de\-fined\angleright
+ \iflinks
+ \ifhavexrefs
+ \message{\linenumber Undefined cross reference `#1'.}%
+ \else
+ \ifwarnedxrefs\else
+ \global\warnedxrefstrue
+ \message{Cross reference values unknown; you must run TeX again.}%
+ \fi
+ \fi
+ \fi
+ \else
+ % It's defined, so just use it.
+ \thisrefX
+ \fi
+ #2% Output the suffix in any case.
+}
+
+% This is the macro invoked by entries in the aux file. Usually it's
+% just a \def (we prepend XR to the control sequence name to avoid
+% collisions). But if this is a float type, we have more work to do.
+%
+\def\xrdef#1#2{%
+ \expandafter\gdef\csname XR#1\endcsname{#2}% remember this xref value.
+ %
+ % Was that xref control sequence that we just defined for a float?
+ \expandafter\iffloat\csname XR#1\endcsname
+ % it was a float, and we have the (safe) float type in \iffloattype.
+ \expandafter\let\expandafter\floatlist
+ \csname floatlist\iffloattype\endcsname
+ %
+ % Is this the first time we've seen this float type?
+ \expandafter\ifx\floatlist\relax
+ \toks0 = {\do}% yes, so just \do
+ \else
+ % had it before, so preserve previous elements in list.
+ \toks0 = \expandafter{\floatlist\do}%
+ \fi
+ %
+ % Remember this xref in the control sequence \floatlistFLOATTYPE,
+ % for later use in \listoffloats.
+ \expandafter\xdef\csname floatlist\iffloattype\endcsname{\the\toks0{#1}}%
+ \fi
+}
+
+% Read the last existing aux file, if any. No error if none exists.
+%
+\def\tryauxfile{%
+ \openin 1 \jobname.aux
+ \ifeof 1 \else
+ \readdatafile{aux}%
+ \global\havexrefstrue
+ \fi
+ \closein 1
+}
+
+\def\setupdatafile{%
+ \catcode`\^^@=\other
+ \catcode`\^^A=\other
+ \catcode`\^^B=\other
+ \catcode`\^^C=\other
+ \catcode`\^^D=\other
+ \catcode`\^^E=\other
+ \catcode`\^^F=\other
+ \catcode`\^^G=\other
+ \catcode`\^^H=\other
+ \catcode`\^^K=\other
+ \catcode`\^^L=\other
+ \catcode`\^^N=\other
+ \catcode`\^^P=\other
+ \catcode`\^^Q=\other
+ \catcode`\^^R=\other
+ \catcode`\^^S=\other
+ \catcode`\^^T=\other
+ \catcode`\^^U=\other
+ \catcode`\^^V=\other
+ \catcode`\^^W=\other
+ \catcode`\^^X=\other
+ \catcode`\^^Z=\other
+ \catcode`\^^[=\other
+ \catcode`\^^\=\other
+ \catcode`\^^]=\other
+ \catcode`\^^^=\other
+ \catcode`\^^_=\other
+ % It was suggested to set the catcode of ^ to 7, which would allow ^^e4 etc.
+ % in xref tags, i.e., node names. But since ^^e4 notation isn't
+ % supported in the main text, it doesn't seem desirable. Furthermore,
+ % that is not enough: for node names that actually contain a ^
+ % character, we would end up writing a line like this: 'xrdef {'hat
+ % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first
+ % argument, and \hat is not an expandable control sequence. It could
+ % all be worked out, but why? Either we support ^^ or we don't.
+ %
+ % The other change necessary for this was to define \auxhat:
+ % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter
+ % and then to call \auxhat in \setq.
+ %
+ \catcode`\^=\other
+ %
+ % Special characters. Should be turned off anyway, but...
+ \catcode`\~=\other
+ \catcode`\[=\other
+ \catcode`\]=\other
+ \catcode`\"=\other
+ \catcode`\_=\other
+ \catcode`\|=\other
+ \catcode`\<=\other
+ \catcode`\>=\other
+ \catcode`\$=\other
+ \catcode`\#=\other
+ \catcode`\&=\other
+ \catcode`\%=\other
+ \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
+ %
+ % This is to support \ in node names and titles, since the \
+ % characters end up in a \csname. It's easier than
+ % leaving it active and making its active definition an actual \
+ % character. What I don't understand is why it works in the *value*
+ % of the xrdef. Seems like it should be a catcode12 \, and that
+ % should not typeset properly. But it works, so I'm moving on for
+ % now. --karl, 15jan04.
+ \catcode`\\=\other
+ %
+ % Make the characters 128-255 be printing characters.
+ {%
+ \count1=128
+ \def\loop{%
+ \catcode\count1=\other
+ \advance\count1 by 1
+ \ifnum \count1<256 \loop \fi
+ }%
+ }%
+ %
+ % @ is our escape character in .aux files, and we need braces.
+ \catcode`\{=1
+ \catcode`\}=2
+ \catcode`\@=0
+}
+
+\def\readdatafile#1{%
+\begingroup
+ \setupdatafile
+ \input\jobname.#1
+\endgroup}
+
+\message{insertions,}
+% including footnotes.
+
+\newcount \footnoteno
+
+% The trailing space in the following definition for supereject is
+% vital for proper filling; pages come out unaligned when you do a
+% pagealignmacro call if that space before the closing brace is
+% removed. (Generally, numeric constants should always be followed by a
+% space to prevent strange expansion errors.)
+\def\supereject{\par\penalty -20000\footnoteno =0 }
+
+% @footnotestyle is meaningful for info output only.
+\let\footnotestyle=\comment
+
+{\catcode `\@=11
+%
+% Auto-number footnotes. Otherwise like plain.
+\gdef\footnote{%
+ \let\indent=\ptexindent
+ \let\noindent=\ptexnoindent
+ \global\advance\footnoteno by \@ne
+ \edef\thisfootno{$^{\the\footnoteno}$}%
+ %
+ % In case the footnote comes at the end of a sentence, preserve the
+ % extra spacing after we do the footnote number.
+ \let\@sf\empty
+ \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\ptexslash\fi
+ %
+ % Remove inadvertent blank space before typesetting the footnote number.
+ \unskip
+ \thisfootno\@sf
+ \dofootnote
+}%
+
+% Don't bother with the trickery in plain.tex to not require the
+% footnote text as a parameter. Our footnotes don't need to be so general.
+%
+% Oh yes, they do; otherwise, @ifset (and anything else that uses
+% \parseargline) fails inside footnotes because the tokens are fixed when
+% the footnote is read. --karl, 16nov96.
+%
+\gdef\dofootnote{%
+ \insert\footins\bgroup
+ % We want to typeset this text as a normal paragraph, even if the
+ % footnote reference occurs in (for example) a display environment.
+ % So reset some parameters.
+ \hsize=\pagewidth
+ \interlinepenalty\interfootnotelinepenalty
+ \splittopskip\ht\strutbox % top baseline for broken footnotes
+ \splitmaxdepth\dp\strutbox
+ \floatingpenalty\@MM
+ \leftskip\z@skip
+ \rightskip\z@skip
+ \spaceskip\z@skip
+ \xspaceskip\z@skip
+ \parindent\defaultparindent
+ %
+ \smallfonts \rm
+ %
+ % Because we use hanging indentation in footnotes, a @noindent appears
+ % to exdent this text, so make it be a no-op. makeinfo does not use
+ % hanging indentation so @noindent can still be needed within footnote
+ % text after an @example or the like (not that this is good style).
+ \let\noindent = \relax
+ %
+ % Hang the footnote text off the number. Use \everypar in case the
+ % footnote extends for more than one paragraph.
+ \everypar = {\hang}%
+ \textindent{\thisfootno}%
+ %
+ % Don't crash into the line above the footnote text. Since this
+ % expands into a box, it must come within the paragraph, lest it
+ % provide a place where TeX can split the footnote.
+ \footstrut
+ \futurelet\next\fo@t
+}
+}%end \catcode `\@=11
+
+% In case a @footnote appears in a vbox, save the footnote text and create
+% the real \insert just after the vbox finished. Otherwise, the insertion
+% would be lost.
+% Similarily, if a @footnote appears inside an alignment, save the footnote
+% text to a box and make the \insert when a row of the table is finished.
+% And the same can be done for other insert classes. --kasal, 16nov03.
+
+% Replace the \insert primitive by a cheating macro.
+% Deeper inside, just make sure that the saved insertions are not spilled
+% out prematurely.
+%
+\def\startsavinginserts{%
+ \ifx \insert\ptexinsert
+ \let\insert\saveinsert
+ \else
+ \let\checkinserts\relax
+ \fi
+}
+
+% This \insert replacement works for both \insert\footins{foo} and
+% \insert\footins\bgroup foo\egroup, but it doesn't work for \insert27{foo}.
+%
+\def\saveinsert#1{%
+ \edef\next{\noexpand\savetobox \makeSAVEname#1}%
+ \afterassignment\next
+ % swallow the left brace
+ \let\temp =
+}
+\def\makeSAVEname#1{\makecsname{SAVE\expandafter\gobble\string#1}}
+\def\savetobox#1{\global\setbox#1 = \vbox\bgroup \unvbox#1}
+
+\def\checksaveins#1{\ifvoid#1\else \placesaveins#1\fi}
+
+\def\placesaveins#1{%
+ \ptexinsert \csname\expandafter\gobblesave\string#1\endcsname
+ {\box#1}%
+}
+
+% eat @SAVE -- beware, all of them have catcode \other:
+{
+ \def\dospecials{\do S\do A\do V\do E} \uncatcodespecials % ;-)
+ \gdef\gobblesave @SAVE{}
+}
+
+% initialization:
+\def\newsaveins #1{%
+ \edef\next{\noexpand\newsaveinsX \makeSAVEname#1}%
+ \next
+}
+\def\newsaveinsX #1{%
+ \csname newbox\endcsname #1%
+ \expandafter\def\expandafter\checkinserts\expandafter{\checkinserts
+ \checksaveins #1}%
+}
+
+% initialize:
+\let\checkinserts\empty
+\newsaveins\footins
+\newsaveins\margin
+
+
+% @image. We use the macros from epsf.tex to support this.
+% If epsf.tex is not installed and @image is used, we complain.
+%
+% Check for and read epsf.tex up front. If we read it only at @image
+% time, we might be inside a group, and then its definitions would get
+% undone and the next image would fail.
+\openin 1 = epsf.tex
+\ifeof 1 \else
+ % Do not bother showing banner with epsf.tex v2.7k (available in
+ % doc/epsf.tex and on ctan).
+ \def\epsfannounce{\toks0 = }%
+ \input epsf.tex
+\fi
+\closein 1
+%
+% We will only complain once about lack of epsf.tex.
+\newif\ifwarnednoepsf
+\newhelp\noepsfhelp{epsf.tex must be installed for images to
+ work. It is also included in the Texinfo distribution, or you can get
+ it from ftp://tug.org/tex/epsf.tex.}
+%
+\def\image#1{%
+ \ifx\epsfbox\undefined
+ \ifwarnednoepsf \else
+ \errhelp = \noepsfhelp
+ \errmessage{epsf.tex not found, images will be ignored}%
+ \global\warnednoepsftrue
+ \fi
+ \else
+ \imagexxx #1,,,,,\finish
+ \fi
+}
+%
+% Arguments to @image:
+% #1 is (mandatory) image filename; we tack on .eps extension.
+% #2 is (optional) width, #3 is (optional) height.
+% #4 is (ignored optional) html alt text.
+% #5 is (ignored optional) extension.
+% #6 is just the usual extra ignored arg for parsing this stuff.
+\newif\ifimagevmode
+\def\imagexxx#1,#2,#3,#4,#5,#6\finish{\begingroup
+ \catcode`\^^M = 5 % in case we're inside an example
+ \normalturnoffactive % allow _ et al. in names
+ % If the image is by itself, center it.
+ \ifvmode
+ \imagevmodetrue
+ \nobreak\bigskip
+ % Usually we'll have text after the image which will insert
+ % \parskip glue, so insert it here too to equalize the space
+ % above and below.
+ \nobreak\vskip\parskip
+ \nobreak
+ \line\bgroup\hss
+ \fi
+ %
+ % Output the image.
+ \ifpdf
+ \dopdfimage{#1}{#2}{#3}%
+ \else
+ % \epsfbox itself resets \epsf?size at each figure.
+ \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi
+ \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi
+ \epsfbox{#1.eps}%
+ \fi
+ %
+ \ifimagevmode \hss \egroup \bigbreak \fi % space after the image
+\endgroup}
+
+
+% @float FLOATTYPE,LABEL,LOC ... @end float for displayed figures, tables,
+% etc. We don't actually implement floating yet, we always include the
+% float "here". But it seemed the best name for the future.
+%
+\envparseargdef\float{\eatcommaspace\eatcommaspace\dofloat#1, , ,\finish}
+
+% There may be a space before second and/or third parameter; delete it.
+\def\eatcommaspace#1, {#1,}
+
+% #1 is the optional FLOATTYPE, the text label for this float, typically
+% "Figure", "Table", "Example", etc. Can't contain commas. If omitted,
+% this float will not be numbered and cannot be referred to.
+%
+% #2 is the optional xref label. Also must be present for the float to
+% be referable.
+%
+% #3 is the optional positioning argument; for now, it is ignored. It
+% will somehow specify the positions allowed to float to (here, top, bottom).
+%
+% We keep a separate counter for each FLOATTYPE, which we reset at each
+% chapter-level command.
+\let\resetallfloatnos=\empty
+%
+\def\dofloat#1,#2,#3,#4\finish{%
+ \let\thiscaption=\empty
+ \let\thisshortcaption=\empty
+ %
+ % don't lose footnotes inside @float.
+ %
+ % BEWARE: when the floats start float, we have to issue warning whenever an
+ % insert appears inside a float which could possibly float. --kasal, 26may04
+ %
+ \startsavinginserts
+ %
+ % We can't be used inside a paragraph.
+ \par
+ %
+ \vtop\bgroup
+ \def\floattype{#1}%
+ \def\floatlabel{#2}%
+ \def\floatloc{#3}% we do nothing with this yet.
+ %
+ \ifx\floattype\empty
+ \let\safefloattype=\empty
+ \else
+ {%
+ % the floattype might have accents or other special characters,
+ % but we need to use it in a control sequence name.
+ \indexnofonts
+ \turnoffactive
+ \xdef\safefloattype{\floattype}%
+ }%
+ \fi
+ %
+ % If label is given but no type, we handle that as the empty type.
+ \ifx\floatlabel\empty \else
+ % We want each FLOATTYPE to be numbered separately (Figure 1,
+ % Table 1, Figure 2, ...). (And if no label, no number.)
+ %
+ \expandafter\getfloatno\csname\safefloattype floatno\endcsname
+ \global\advance\floatno by 1
+ %
+ {%
+ % This magic value for \thissection is output by \setref as the
+ % XREFLABEL-title value. \xrefX uses it to distinguish float
+ % labels (which have a completely different output format) from
+ % node and anchor labels. And \xrdef uses it to construct the
+ % lists of floats.
+ %
+ \edef\thissection{\floatmagic=\safefloattype}%
+ \setref{\floatlabel}{Yfloat}%
+ }%
+ \fi
+ %
+ % start with \parskip glue, I guess.
+ \vskip\parskip
+ %
+ % Don't suppress indentation if a float happens to start a section.
+ \restorefirstparagraphindent
+}
+
+% we have these possibilities:
+% @float Foo,lbl & @caption{Cap}: Foo 1.1: Cap
+% @float Foo,lbl & no caption: Foo 1.1
+% @float Foo & @caption{Cap}: Foo: Cap
+% @float Foo & no caption: Foo
+% @float ,lbl & Caption{Cap}: 1.1: Cap
+% @float ,lbl & no caption: 1.1
+% @float & @caption{Cap}: Cap
+% @float & no caption:
+%
+\def\Efloat{%
+ \let\floatident = \empty
+ %
+ % In all cases, if we have a float type, it comes first.
+ \ifx\floattype\empty \else \def\floatident{\floattype}\fi
+ %
+ % If we have an xref label, the number comes next.
+ \ifx\floatlabel\empty \else
+ \ifx\floattype\empty \else % if also had float type, need tie first.
+ \appendtomacro\floatident{\tie}%
+ \fi
+ % the number.
+ \appendtomacro\floatident{\chaplevelprefix\the\floatno}%
+ \fi
+ %
+ % Start the printed caption with what we've constructed in
+ % \floatident, but keep it separate; we need \floatident again.
+ \let\captionline = \floatident
+ %
+ \ifx\thiscaption\empty \else
+ \ifx\floatident\empty \else
+ \appendtomacro\captionline{: }% had ident, so need a colon between
+ \fi
+ %
+ % caption text.
+ \appendtomacro\captionline{\scanexp\thiscaption}%
+ \fi
+ %
+ % If we have anything to print, print it, with space before.
+ % Eventually this needs to become an \insert.
+ \ifx\captionline\empty \else
+ \vskip.5\parskip
+ \captionline
+ %
+ % Space below caption.
+ \vskip\parskip
+ \fi
+ %
+ % If have an xref label, write the list of floats info. Do this
+ % after the caption, to avoid chance of it being a breakpoint.
+ \ifx\floatlabel\empty \else
+ % Write the text that goes in the lof to the aux file as
+ % \floatlabel-lof. Besides \floatident, we include the short
+ % caption if specified, else the full caption if specified, else nothing.
+ {%
+ \atdummies
+ % since we read the caption text in the macro world, where ^^M
+ % is turned into a normal character, we have to scan it back, so
+ % we don't write the literal three characters "^^M" into the aux file.
+ \scanexp{%
+ \xdef\noexpand\gtemp{%
+ \ifx\thisshortcaption\empty
+ \thiscaption
+ \else
+ \thisshortcaption
+ \fi
+ }%
+ }%
+ \immediate\write\auxfile{@xrdef{\floatlabel-lof}{\floatident
+ \ifx\gtemp\empty \else : \gtemp \fi}}%
+ }%
+ \fi
+ \egroup % end of \vtop
+ %
+ % place the captured inserts
+ %
+ % BEWARE: when the floats start float, we have to issue warning whenever an
+ % insert appears inside a float which could possibly float. --kasal, 26may04
+ %
+ \checkinserts
+}
+
+% Append the tokens #2 to the definition of macro #1, not expanding either.
+%
+\def\appendtomacro#1#2{%
+ \expandafter\def\expandafter#1\expandafter{#1#2}%
+}
+
+% @caption, @shortcaption
+%
+\def\caption{\docaption\thiscaption}
+\def\shortcaption{\docaption\thisshortcaption}
+\def\docaption{\checkenv\float \bgroup\scanargctxt\defcaption}
+\def\defcaption#1#2{\egroup \def#1{#2}}
+
+% The parameter is the control sequence identifying the counter we are
+% going to use. Create it if it doesn't exist and assign it to \floatno.
+\def\getfloatno#1{%
+ \ifx#1\relax
+ % Haven't seen this figure type before.
+ \csname newcount\endcsname #1%
+ %
+ % Remember to reset this floatno at the next chap.
+ \expandafter\gdef\expandafter\resetallfloatnos
+ \expandafter{\resetallfloatnos #1=0 }%
+ \fi
+ \let\floatno#1%
+}
+
+% \setref calls this to get the XREFLABEL-snt value. We want an @xref
+% to the FLOATLABEL to expand to "Figure 3.1". We call \setref when we
+% first read the @float command.
+%
+\def\Yfloat{\floattype@tie \chaplevelprefix\the\floatno}%
+
+% Magic string used for the XREFLABEL-title value, so \xrefX can
+% distinguish floats from other xref types.
+\def\floatmagic{!!float!!}
+
+% #1 is the control sequence we are passed; we expand into a conditional
+% which is true if #1 represents a float ref. That is, the magic
+% \thissection value which we \setref above.
+%
+\def\iffloat#1{\expandafter\doiffloat#1==\finish}
+%
+% #1 is (maybe) the \floatmagic string. If so, #2 will be the
+% (safe) float type for this float. We set \iffloattype to #2.
+%
+\def\doiffloat#1=#2=#3\finish{%
+ \def\temp{#1}%
+ \def\iffloattype{#2}%
+ \ifx\temp\floatmagic
+}
+
+% @listoffloats FLOATTYPE - print a list of floats like a table of contents.
+%
+\parseargdef\listoffloats{%
+ \def\floattype{#1}% floattype
+ {%
+ % the floattype might have accents or other special characters,
+ % but we need to use it in a control sequence name.
+ \indexnofonts
+ \turnoffactive
+ \xdef\safefloattype{\floattype}%
+ }%
+ %
+ % \xrdef saves the floats as a \do-list in \floatlistSAFEFLOATTYPE.
+ \expandafter\ifx\csname floatlist\safefloattype\endcsname \relax
+ \ifhavexrefs
+ % if the user said @listoffloats foo but never @float foo.
+ \message{\linenumber No `\safefloattype' floats to list.}%
+ \fi
+ \else
+ \begingroup
+ \leftskip=\tocindent % indent these entries like a toc
+ \let\do=\listoffloatsdo
+ \csname floatlist\safefloattype\endcsname
+ \endgroup
+ \fi
+}
+
+% This is called on each entry in a list of floats. We're passed the
+% xref label, in the form LABEL-title, which is how we save it in the
+% aux file. We strip off the -title and look up \XRLABEL-lof, which
+% has the text we're supposed to typeset here.
+%
+% Figures without xref labels will not be included in the list (since
+% they won't appear in the aux file).
+%
+\def\listoffloatsdo#1{\listoffloatsdoentry#1\finish}
+\def\listoffloatsdoentry#1-title\finish{{%
+ % Can't fully expand XR#1-lof because it can contain anything. Just
+ % pass the control sequence. On the other hand, XR#1-pg is just the
+ % page number, and we want to fully expand that so we can get a link
+ % in pdf output.
+ \toksA = \expandafter{\csname XR#1-lof\endcsname}%
+ %
+ % use the same \entry macro we use to generate the TOC and index.
+ \edef\writeentry{\noexpand\entry{\the\toksA}{\csname XR#1-pg\endcsname}}%
+ \writeentry
+}}
+
+\message{localization,}
+% and i18n.
+
+% @documentlanguage is usually given very early, just after
+% @setfilename. If done too late, it may not override everything
+% properly. Single argument is the language abbreviation.
+% It would be nice if we could set up a hyphenation file here.
+%
+\parseargdef\documentlanguage{%
+ \tex % read txi-??.tex file in plain TeX.
+ % Read the file if it exists.
+ \openin 1 txi-#1.tex
+ \ifeof 1
+ \errhelp = \nolanghelp
+ \errmessage{Cannot read language file txi-#1.tex}%
+ \else
+ \input txi-#1.tex
+ \fi
+ \closein 1
+ \endgroup
+}
+\newhelp\nolanghelp{The given language definition file cannot be found or
+is empty. Maybe you need to install it? In the current directory
+should work if nowhere else does.}
+
+
+% @documentencoding should change something in TeX eventually, most
+% likely, but for now just recognize it.
+\let\documentencoding = \comment
+
+
+% Page size parameters.
+%
+\newdimen\defaultparindent \defaultparindent = 15pt
+
+\chapheadingskip = 15pt plus 4pt minus 2pt
+\secheadingskip = 12pt plus 3pt minus 2pt
+\subsecheadingskip = 9pt plus 2pt minus 2pt
+
+% Prevent underfull vbox error messages.
+\vbadness = 10000
+
+% Don't be so finicky about underfull hboxes, either.
+\hbadness = 2000
+
+% Following George Bush, just get rid of widows and orphans.
+\widowpenalty=10000
+\clubpenalty=10000
+
+% Use TeX 3.0's \emergencystretch to help line breaking, but if we're
+% using an old version of TeX, don't do anything. We want the amount of
+% stretch added to depend on the line length, hence the dependence on
+% \hsize. We call this whenever the paper size is set.
+%
+\def\setemergencystretch{%
+ \ifx\emergencystretch\thisisundefined
+ % Allow us to assign to \emergencystretch anyway.
+ \def\emergencystretch{\dimen0}%
+ \else
+ \emergencystretch = .15\hsize
+ \fi
+}
+
+% Parameters in order: 1) textheight; 2) textwidth;
+% 3) voffset; 4) hoffset; 5) binding offset; 6) topskip;
+% 7) physical page height; 8) physical page width.
+%
+% We also call \setleading{\textleading}, so the caller should define
+% \textleading. The caller should also set \parskip.
+%
+\def\internalpagesizes#1#2#3#4#5#6#7#8{%
+ \voffset = #3\relax
+ \topskip = #6\relax
+ \splittopskip = \topskip
+ %
+ \vsize = #1\relax
+ \advance\vsize by \topskip
+ \outervsize = \vsize
+ \advance\outervsize by 2\topandbottommargin
+ \pageheight = \vsize
+ %
+ \hsize = #2\relax
+ \outerhsize = \hsize
+ \advance\outerhsize by 0.5in
+ \pagewidth = \hsize
+ %
+ \normaloffset = #4\relax
+ \bindingoffset = #5\relax
+ %
+ \ifpdf
+ \pdfpageheight #7\relax
+ \pdfpagewidth #8\relax
+ \fi
+ %
+ \setleading{\textleading}
+ %
+ \parindent = \defaultparindent
+ \setemergencystretch
+}
+
+% @letterpaper (the default).
+\def\letterpaper{{\globaldefs = 1
+ \parskip = 3pt plus 2pt minus 1pt
+ \textleading = 13.2pt
+ %
+ % If page is nothing but text, make it come out even.
+ \internalpagesizes{46\baselineskip}{6in}%
+ {\voffset}{.25in}%
+ {\bindingoffset}{36pt}%
+ {11in}{8.5in}%
+}}
+
+% Use @smallbook to reset parameters for 7x9.25 trim size.
+\def\smallbook{{\globaldefs = 1
+ \parskip = 2pt plus 1pt
+ \textleading = 12pt
+ %
+ \internalpagesizes{7.5in}{5in}%
+ {\voffset}{.25in}%
+ {\bindingoffset}{16pt}%
+ {9.25in}{7in}%
+ %
+ \lispnarrowing = 0.3in
+ \tolerance = 700
+ \hfuzz = 1pt
+ \contentsrightmargin = 0pt
+ \defbodyindent = .5cm
+}}
+
+% Use @smallerbook to reset parameters for 6x9 trim size.
+% (Just testing, parameters still in flux.)
+\def\smallerbook{{\globaldefs = 1
+ \parskip = 1.5pt plus 1pt
+ \textleading = 12pt
+ %
+ \internalpagesizes{7.4in}{4.8in}%
+ {-.2in}{-.4in}%
+ {0pt}{14pt}%
+ {9in}{6in}%
+ %
+ \lispnarrowing = 0.25in
+ \tolerance = 700
+ \hfuzz = 1pt
+ \contentsrightmargin = 0pt
+ \defbodyindent = .4cm
+}}
+
+% Use @afourpaper to print on European A4 paper.
+\def\afourpaper{{\globaldefs = 1
+ \parskip = 3pt plus 2pt minus 1pt
+ \textleading = 13.2pt
+ %
+ % Double-side printing via postscript on Laserjet 4050
+ % prints double-sided nicely when \bindingoffset=10mm and \hoffset=-6mm.
+ % To change the settings for a different printer or situation, adjust
+ % \normaloffset until the front-side and back-side texts align. Then
+ % do the same for \bindingoffset. You can set these for testing in
+ % your texinfo source file like this:
+ % @tex
+ % \global\normaloffset = -6mm
+ % \global\bindingoffset = 10mm
+ % @end tex
+ \internalpagesizes{51\baselineskip}{160mm}
+ {\voffset}{\hoffset}%
+ {\bindingoffset}{44pt}%
+ {297mm}{210mm}%
+ %
+ \tolerance = 700
+ \hfuzz = 1pt
+ \contentsrightmargin = 0pt
+ \defbodyindent = 5mm
+}}
+
+% Use @afivepaper to print on European A5 paper.
+% From romildo@urano.iceb.ufop.br, 2 July 2000.
+% He also recommends making @example and @lisp be small.
+\def\afivepaper{{\globaldefs = 1
+ \parskip = 2pt plus 1pt minus 0.1pt
+ \textleading = 12.5pt
+ %
+ \internalpagesizes{160mm}{120mm}%
+ {\voffset}{\hoffset}%
+ {\bindingoffset}{8pt}%
+ {210mm}{148mm}%
+ %
+ \lispnarrowing = 0.2in
+ \tolerance = 800
+ \hfuzz = 1.2pt
+ \contentsrightmargin = 0pt
+ \defbodyindent = 2mm
+ \tableindent = 12mm
+}}
+
+% A specific text layout, 24x15cm overall, intended for A4 paper.
+\def\afourlatex{{\globaldefs = 1
+ \afourpaper
+ \internalpagesizes{237mm}{150mm}%
+ {\voffset}{4.6mm}%
+ {\bindingoffset}{7mm}%
+ {297mm}{210mm}%
+ %
+ % Must explicitly reset to 0 because we call \afourpaper.
+ \globaldefs = 0
+}}
+
+% Use @afourwide to print on A4 paper in landscape format.
+\def\afourwide{{\globaldefs = 1
+ \afourpaper
+ \internalpagesizes{241mm}{165mm}%
+ {\voffset}{-2.95mm}%
+ {\bindingoffset}{7mm}%
+ {297mm}{210mm}%
+ \globaldefs = 0
+}}
+
+% @pagesizes TEXTHEIGHT[,TEXTWIDTH]
+% Perhaps we should allow setting the margins, \topskip, \parskip,
+% and/or leading, also. Or perhaps we should compute them somehow.
+%
+\parseargdef\pagesizes{\pagesizesyyy #1,,\finish}
+\def\pagesizesyyy#1,#2,#3\finish{{%
+ \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi
+ \globaldefs = 1
+ %
+ \parskip = 3pt plus 2pt minus 1pt
+ \setleading{\textleading}%
+ %
+ \dimen0 = #1
+ \advance\dimen0 by \voffset
+ %
+ \dimen2 = \hsize
+ \advance\dimen2 by \normaloffset
+ %
+ \internalpagesizes{#1}{\hsize}%
+ {\voffset}{\normaloffset}%
+ {\bindingoffset}{44pt}%
+ {\dimen0}{\dimen2}%
+}}
+
+% Set default to letter.
+%
+\letterpaper
+
+
+\message{and turning on texinfo input format.}
+
+% Define macros to output various characters with catcode for normal text.
+\catcode`\"=\other
+\catcode`\~=\other
+\catcode`\^=\other
+\catcode`\_=\other
+\catcode`\|=\other
+\catcode`\<=\other
+\catcode`\>=\other
+\catcode`\+=\other
+\catcode`\$=\other
+\def\normaldoublequote{"}
+\def\normaltilde{~}
+\def\normalcaret{^}
+\def\normalunderscore{_}
+\def\normalverticalbar{|}
+\def\normalless{<}
+\def\normalgreater{>}
+\def\normalplus{+}
+\def\normaldollar{$}%$ font-lock fix
+
+% This macro is used to make a character print one way in \tt
+% (where it can probably be output as-is), and another way in other fonts,
+% where something hairier probably needs to be done.
+%
+% #1 is what to print if we are indeed using \tt; #2 is what to print
+% otherwise. Since all the Computer Modern typewriter fonts have zero
+% interword stretch (and shrink), and it is reasonable to expect all
+% typewriter fonts to have this, we can check that font parameter.
+%
+\def\ifusingtt#1#2{\ifdim \fontdimen3\font=0pt #1\else #2\fi}
+
+% Same as above, but check for italic font. Actually this also catches
+% non-italic slanted fonts since it is impossible to distinguish them from
+% italic fonts. But since this is only used by $ and it uses \sl anyway
+% this is not a problem.
+\def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi}
+
+% Turn off all special characters except @
+% (and those which the user can use as if they were ordinary).
+% Most of these we simply print from the \tt font, but for some, we can
+% use math or other variants that look better in normal text.
+
+\catcode`\"=\active
+\def\activedoublequote{{\tt\char34}}
+\let"=\activedoublequote
+\catcode`\~=\active
+\def~{{\tt\char126}}
+\chardef\hat=`\^
+\catcode`\^=\active
+\def^{{\tt \hat}}
+
+\catcode`\_=\active
+\def_{\ifusingtt\normalunderscore\_}
+\let\realunder=_
+% Subroutine for the previous macro.
+\def\_{\leavevmode \kern.07em \vbox{\hrule width.3em height.1ex}\kern .07em }
+
+\catcode`\|=\active
+\def|{{\tt\char124}}
+\chardef \less=`\<
+\catcode`\<=\active
+\def<{{\tt \less}}
+\chardef \gtr=`\>
+\catcode`\>=\active
+\def>{{\tt \gtr}}
+\catcode`\+=\active
+\def+{{\tt \char 43}}
+\catcode`\$=\active
+\def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix
+
+% If a .fmt file is being used, characters that might appear in a file
+% name cannot be active until we have parsed the command line.
+% So turn them off again, and have \everyjob (or @setfilename) turn them on.
+% \otherifyactive is called near the end of this file.
+\def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
+
+\catcode`\@=0
+
+% \backslashcurfont outputs one backslash character in current font,
+% as in \char`\\.
+\global\chardef\backslashcurfont=`\\
+\global\let\rawbackslashxx=\backslashcurfont % let existing .??s files work
+
+% \rawbackslash defines an active \ to do \backslashcurfont.
+% \otherbackslash defines an active \ to be a literal `\' character with
+% catcode other.
+{\catcode`\\=\active
+ @gdef@rawbackslash{@let\=@backslashcurfont}
+ @gdef@otherbackslash{@let\=@realbackslash}
+}
+
+% \realbackslash is an actual character `\' with catcode other, and
+% \doublebackslash is two of them (for the pdf outlines).
+{\catcode`\\=\other @gdef@realbackslash{\} @gdef@doublebackslash{\\}}
+
+% \normalbackslash outputs one backslash in fixed width font.
+\def\normalbackslash{{\tt\backslashcurfont}}
+
+\catcode`\\=\active
+
+% Used sometimes to turn off (effectively) the active characters
+% even after parsing them.
+@def@turnoffactive{%
+ @let"=@normaldoublequote
+ @let\=@realbackslash
+ @let~=@normaltilde
+ @let^=@normalcaret
+ @let_=@normalunderscore
+ @let|=@normalverticalbar
+ @let<=@normalless
+ @let>=@normalgreater
+ @let+=@normalplus
+ @let$=@normaldollar %$ font-lock fix
+ @unsepspaces
+}
+
+% Same as @turnoffactive except outputs \ as {\tt\char`\\} instead of
+% the literal character `\'. (Thus, \ is not expandable when this is in
+% effect.)
+%
+@def@normalturnoffactive{@turnoffactive @let\=@normalbackslash}
+
+% Make _ and + \other characters, temporarily.
+% This is canceled by @fixbackslash.
+@otherifyactive
+
+% If a .fmt file is being used, we don't want the `\input texinfo' to show up.
+% That is what \eatinput is for; after that, the `\' should revert to printing
+% a backslash.
+%
+@gdef@eatinput input texinfo{@fixbackslash}
+@global@let\ = @eatinput
+
+% On the other hand, perhaps the file did not have a `\input texinfo'. Then
+% the first `\{ in the file would cause an error. This macro tries to fix
+% that, assuming it is called before the first `\' could plausibly occur.
+% Also turn back on active characters that might appear in the input
+% file name, in case not using a pre-dumped format.
+%
+@gdef@fixbackslash{%
+ @ifx\@eatinput @let\ = @normalbackslash @fi
+ @catcode`+=@active
+ @catcode`@_=@active
+}
+
+% Say @foo, not \foo, in error messages.
+@escapechar = `@@
+
+% These look ok in all fonts, so just make them not special.
+@catcode`@& = @other
+@catcode`@# = @other
+@catcode`@% = @other
+
+
+@c Local variables:
+@c eval: (add-hook 'write-file-hooks 'time-stamp)
+@c page-delimiter: "^\\\\message"
+@c time-stamp-start: "def\\\\texinfoversion{"
+@c time-stamp-format: "%:y-%02m-%02d.%02H"
+@c time-stamp-end: "}"
+@c End:
+
+@c vim:sw=2:
+
+@ignore
+ arch-tag: e1b36e32-c96e-4135-a41a-0b2efa2ea115
+@end ignore
diff --git a/build-aux/ylwrap b/build-aux/ylwrap
new file mode 100755
index 0000000..102bd89
--- /dev/null
+++ b/build-aux/ylwrap
@@ -0,0 +1,223 @@
+#! /bin/sh
+# ylwrap - wrapper for lex/yacc invocations.
+
+scriptversion=2005-05-14.22
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+#
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+case "$1" in
+ '')
+ echo "$0: No files given. Try \`$0 --help' for more information." 1>&2
+ exit 1
+ ;;
+ --basedir)
+ basedir=$2
+ shift 2
+ ;;
+ -h|--h*)
+ cat <<\EOF
+Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
+
+Wrapper for lex/yacc invocations, renaming files as desired.
+
+ INPUT is the input file
+ OUTPUT is one file PROG generates
+ DESIRED is the file we actually want instead of OUTPUT
+ PROGRAM is program to run
+ ARGS are passed to PROG
+
+Any number of OUTPUT,DESIRED pairs may be used.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+ exit $?
+ ;;
+ -v|--v*)
+ echo "ylwrap $scriptversion"
+ exit $?
+ ;;
+esac
+
+
+# The input.
+input="$1"
+shift
+case "$input" in
+ [\\/]* | ?:[\\/]*)
+ # Absolute path; do nothing.
+ ;;
+ *)
+ # Relative path. Make it absolute.
+ input="`pwd`/$input"
+ ;;
+esac
+
+pairlist=
+while test "$#" -ne 0; do
+ if test "$1" = "--"; then
+ shift
+ break
+ fi
+ pairlist="$pairlist $1"
+ shift
+done
+
+# The program to run.
+prog="$1"
+shift
+# Make any relative path in $prog absolute.
+case "$prog" in
+ [\\/]* | ?:[\\/]*) ;;
+ *[\\/]*) prog="`pwd`/$prog" ;;
+esac
+
+# FIXME: add hostname here for parallel makes that run commands on
+# other machines. But that might take us over the 14-char limit.
+dirname=ylwrap$$
+trap "cd `pwd`; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15
+mkdir $dirname || exit 1
+
+cd $dirname
+
+case $# in
+ 0) $prog "$input" ;;
+ *) $prog "$@" "$input" ;;
+esac
+ret=$?
+
+if test $ret -eq 0; then
+ set X $pairlist
+ shift
+ first=yes
+ # Since DOS filename conventions don't allow two dots,
+ # the DOS version of Bison writes out y_tab.c instead of y.tab.c
+ # and y_tab.h instead of y.tab.h. Test to see if this is the case.
+ y_tab_nodot="no"
+ if test -f y_tab.c || test -f y_tab.h; then
+ y_tab_nodot="yes"
+ fi
+
+ # The directory holding the input.
+ input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
+ # Quote $INPUT_DIR so we can use it in a regexp.
+ # FIXME: really we should care about more than `.' and `\'.
+ input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
+
+ while test "$#" -ne 0; do
+ from="$1"
+ # Handle y_tab.c and y_tab.h output by DOS
+ if test $y_tab_nodot = "yes"; then
+ if test $from = "y.tab.c"; then
+ from="y_tab.c"
+ else
+ if test $from = "y.tab.h"; then
+ from="y_tab.h"
+ fi
+ fi
+ fi
+ if test -f "$from"; then
+ # If $2 is an absolute path name, then just use that,
+ # otherwise prepend `../'.
+ case "$2" in
+ [\\/]* | ?:[\\/]*) target="$2";;
+ *) target="../$2";;
+ esac
+
+ # We do not want to overwrite a header file if it hasn't
+ # changed. This avoid useless recompilations. However the
+ # parser itself (the first file) should always be updated,
+ # because it is the destination of the .y.c rule in the
+ # Makefile. Divert the output of all other files to a temporary
+ # file so we can compare them to existing versions.
+ if test $first = no; then
+ realtarget="$target"
+ target="tmp-`echo $target | sed s/.*[\\/]//g`"
+ fi
+ # Edit out `#line' or `#' directives.
+ #
+ # We don't want the resulting debug information to point at
+ # an absolute srcdir; it is better for it to just mention the
+ # .y file with no path.
+ #
+ # We want to use the real output file name, not yy.lex.c for
+ # instance.
+ #
+ # We want the include guards to be adjusted too.
+ FROM=`echo "$from" | sed \
+ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
+ -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
+ TARGET=`echo "$2" | sed \
+ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
+ -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
+
+ sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
+ -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?
+
+ # Check whether header files must be updated.
+ if test $first = no; then
+ if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
+ echo "$2" is unchanged
+ rm -f "$target"
+ else
+ echo updating "$2"
+ mv -f "$target" "$realtarget"
+ fi
+ fi
+ else
+ # A missing file is only an error for the first file. This
+ # is a blatant hack to let us support using "yacc -d". If -d
+ # is not specified, we don't want an error when the header
+ # file is "missing".
+ if test $first = yes; then
+ ret=1
+ fi
+ fi
+ shift
+ shift
+ first=no
+ done
+else
+ ret=$?
+fi
+
+# Remove the directory.
+cd ..
+rm -rf $dirname
+
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..ebd4aeb
--- /dev/null
+++ b/config.h
@@ -0,0 +1,414 @@
+/* config.h. Generated by configure. */
+/* config.hin. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if translation of program messages to the user's native
+ language is requested. */
+#define ENABLE_NLS 1
+
+/* Define on systems for which file names may have a so-called `drive letter'
+ prefix, define this to compute the length of that prefix, including the
+ colon. */
+#define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 0
+
+/* Define if the backslash character may also serve as a file name component
+ separator. */
+#define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 0
+
+#if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
+# define FILE_SYSTEM_PREFIX_LEN(Filename) \
+ ((Filename)[0] && (Filename)[1] == ':' ? 2 : 0)
+#else
+# define FILE_SYSTEM_PREFIX_LEN(Filename) 0
+#endif
+
+/* Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the
+ CoreFoundation framework. */
+/* #undef HAVE_CFLOCALECOPYCURRENT */
+
+/* Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in
+ the CoreFoundation framework. */
+/* #undef HAVE_CFPREFERENCESCOPYAPPVALUE */
+
+/* Define to 1 if the system has the type `clock_t'. */
+#define HAVE_CLOCK_T 1
+
+/* Define if the GNU dcgettext() function is already present or preinstalled.
+ */
+#define HAVE_DCGETTEXT 1
+
+/* Define to 1 if you have the declaration of `clearerr_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_CLEARERR_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `clock', and to 0 if you don't.
+ */
+#define HAVE_DECL_CLOCK 0
+
+/* Define to 1 if you have the declaration of `feof_unlocked', and to 0 if you
+ don't. */
+#define HAVE_DECL_FEOF_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `ferror_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_FERROR_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `fflush_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_FFLUSH_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `fgets_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_FGETS_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `fputc_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_FPUTC_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `fputs_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_FPUTS_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `fread_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_FREAD_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `fwrite_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_FWRITE_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `getchar_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_GETCHAR_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `getc_unlocked', and to 0 if you
+ don't. */
+#define HAVE_DECL_GETC_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `getenv', and to 0 if you don't.
+ */
+#define HAVE_DECL_GETENV 1
+
+/* Define to 1 if you have the declaration of `getrusage', and to 0 if you
+ don't. */
+#define HAVE_DECL_GETRUSAGE 1
+
+/* Define to 1 if you have a declaration of mbswidth() in <wchar.h>, and to 0
+ otherwise. */
+#define HAVE_DECL_MBSWIDTH_IN_WCHAR_H 0
+
+/* Define to 1 if you have the declaration of `putchar_unlocked', and to 0 if
+ you don't. */
+#define HAVE_DECL_PUTCHAR_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `putc_unlocked', and to 0 if you
+ don't. */
+#define HAVE_DECL_PUTC_UNLOCKED 1
+
+/* Define to 1 if you have the declaration of `strdup', and to 0 if you don't.
+ */
+#define HAVE_DECL_STRDUP 1
+
+/* Define to 1 if you have the declaration of `strerror_r', and to 0 if you
+ don't. */
+#define HAVE_DECL_STRERROR_R 1
+
+/* Define to 1 if you have the declaration of `strndup', and to 0 if you
+ don't. */
+#define HAVE_DECL_STRNDUP 1
+
+/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
+ don't. */
+#define HAVE_DECL_STRNLEN 1
+
+/* Define to 1 if you have the declaration of `sysconf', and to 0 if you
+ don't. */
+#define HAVE_DECL_SYSCONF 1
+
+/* Define to 1 if you have the declaration of `times', and to 0 if you don't.
+ */
+#define HAVE_DECL_TIMES 1
+
+/* Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.
+ */
+#define HAVE_DECL_WCWIDTH 1
+
+/* Define to 1 if you have the `dup2' function. */
+#define HAVE_DUP2 1
+
+/* Define to 1 if you have the `fork' function. */
+#define HAVE_FORK 1
+
+/* Define to 1 if you have the <getopt.h> header file. */
+#define HAVE_GETOPT_H 1
+
+/* Define to 1 if you have the `getopt_long_only' function. */
+#define HAVE_GETOPT_LONG_ONLY 1
+
+/* Define if the GNU gettext() function is already present or preinstalled. */
+#define HAVE_GETTEXT 1
+
+/* Define if you have the iconv() function. */
+/* #undef HAVE_ICONV */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define if <inttypes.h> exists, doesn't clash with <sys/types.h>, and
+ declares uintmax_t. */
+#define HAVE_INTTYPES_H_WITH_UINTMAX 1
+
+/* Define to 1 if you have the `isascii' function. */
+#define HAVE_ISASCII 1
+
+/* Define to 1 if you have the `iswcntrl' function. */
+#define HAVE_ISWCNTRL 1
+
+/* Define to 1 if you have the `iswprint' function. */
+#define HAVE_ISWPRINT 1
+
+/* Define to 1 if you have the <locale.h> header file. */
+#define HAVE_LOCALE_H 1
+
+/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
+ to 0 otherwise. */
+#define HAVE_MALLOC 1
+
+/* Define to 1 if mbrtowc and mbstate_t are properly declared. */
+#define HAVE_MBRTOWC 1
+
+/* Define to 1 if you have the `mbsinit' function. */
+#define HAVE_MBSINIT 1
+
+/* Define to 1 if <wchar.h> declares mbstate_t. */
+#define HAVE_MBSTATE_T 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if libc includes obstacks. */
+#define HAVE_OBSTACK 1
+
+/* Define to 1 if you have the `setlocale' function. */
+#define HAVE_SETLOCALE 1
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#define HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define if <stdint.h> exists, doesn't clash with <sys/types.h>, and declares
+ uintmax_t. */
+#define HAVE_STDINT_H_WITH_UINTMAX 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the `stpcpy' function. */
+#define HAVE_STPCPY 1
+
+/* Define to 1 if you have the `strdup' function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the `strerror' function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the `strerror_r' function. */
+#define HAVE_STRERROR_R 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define if you have the strndup() function and it works. */
+#define HAVE_STRNDUP 1
+
+/* Define to 1 if you have the `strtol' function. */
+#define HAVE_STRTOL 1
+
+/* Define to 1 if you have the `strtoul' function. */
+#define HAVE_STRTOUL 1
+
+/* Define to 1 if the system has the type `struct tms'. */
+#define HAVE_STRUCT_TMS 1
+
+/* Define to 1 if you have the `strverscmp' function. */
+#define HAVE_STRVERSCMP 1
+
+/* Define to 1 if you have the <sys/resource.h> header file. */
+#define HAVE_SYS_RESOURCE_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/times.h> header file. */
+#define HAVE_SYS_TIMES_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+#define HAVE_SYS_WAIT_H 1
+
+/* Define to 1 if you have the `times' function. */
+#define HAVE_TIMES 1
+
+/* Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>. */
+#define HAVE_UINTMAX_T 1
+
+/* Define to 1 if the system has the type `uintptr_t'. */
+#define HAVE_UINTPTR_T 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define if you have the 'unsigned long long' type. */
+#define HAVE_UNSIGNED_LONG_LONG 1
+
+/* Define to 1 if you have the `vfork' function. */
+#define HAVE_VFORK 1
+
+/* Define to 1 if you have the <vfork.h> header file. */
+/* #undef HAVE_VFORK_H */
+
+/* Define to 1 if you have the `waitpid' function. */
+#define HAVE_WAITPID 1
+
+/* Define to 1 if you have the <wchar.h> header file. */
+#define HAVE_WCHAR_H 1
+
+/* Define to 1 if you have the <wctype.h> header file. */
+#define HAVE_WCTYPE_H 1
+
+/* Define to 1 if you have the `wcwidth' function. */
+#define HAVE_WCWIDTH 1
+
+/* Define to 1 if `fork' works. */
+#define HAVE_WORKING_FORK 1
+
+/* Define to 1 if `vfork' works. */
+#define HAVE_WORKING_VFORK 1
+
+/* Define to 1 if the system has the type `_Bool'. */
+#define HAVE__BOOL 1
+
+#if FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
+# define ISSLASH(C) ((C) == '/' || (C) == '\\')
+#else
+# define ISSLASH(C) ((C) == '/')
+#endif
+
+/* Define to the GNU M4 executable name. */
+#define M4 "/usr/bin/m4"
+
+/* Name of package */
+#define PACKAGE "bison"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "GNU Bison"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "GNU Bison 2.3"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "bison"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "2.3"
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if strerror_r returns char *. */
+#define STRERROR_R_CHAR_P 1
+
+/* Define to 1 if you want getc etc. to use unlocked I/O if available.
+ Unlocked I/O can improve performance in unithreaded apps, but it is not
+ safe for multithreaded apps. */
+#define USE_UNLOCKED_IO 1
+
+/* Version number of package */
+#define VERSION "2.3"
+
+/* Define if using the dmalloc debugging malloc package */
+/* #undef WITH_DMALLOC */
+
+/* Define to 1 to internationalize bison runtime messages. */
+#define YYENABLE_NLS 1
+
+/* Define to 1 if `lex' declares `yytext' as a `char *' by default, not a
+ `char[]'. */
+#define YYTEXT_POINTER 1
+
+/* Define to 1 if on AIX 3.
+ System headers sometimes define this.
+ We just want to avoid a redefinition error message. */
+#ifndef _ALL_SOURCE
+/* # undef _ALL_SOURCE */
+#endif
+
+/* Enable GNU extensions on systems that have them. */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
+/* Define to 1 if on MINIX. */
+/* #undef _MINIX */
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+ this defined. */
+/* #undef _POSIX_1_SOURCE */
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+/* #undef _POSIX_SOURCE */
+
+/* Enable extensions on Solaris. */
+#ifndef __EXTENSIONS__
+# define __EXTENSIONS__ 1
+#endif
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# define _POSIX_PTHREAD_SEMANTICS 1
+#endif
+
+/* Define to rpl_ if the getopt replacement functions and variables should be
+ used. */
+/* #undef __GETOPT_PREFIX */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+ calls it, or to nothing if 'inline' is not supported under any name. */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to 1 if the compiler is checking for lint. */
+/* #undef lint */
+
+/* Define to rpl_malloc if the replacement function should be used. */
+/* #undef malloc */
+
+/* Define to a type if <wchar.h> does not define. */
+/* #undef mbstate_t */
+
+/* Define to `int' if <sys/types.h> does not define. */
+/* #undef pid_t */
+
+/* Define to rpl_strndup if the replacement function should be used, */
+/* #undef strndup */
+
+/* Define to rpl_strnlen if the replacement function should be used. */
+/* #undef strnlen */
+
+/* Define to unsigned long or unsigned long long if <stdint.h> and
+ <inttypes.h> don't define. */
+/* #undef uintmax_t */
+
+/* Define as `fork' if `vfork' does not work. */
+/* #undef vfork */
diff --git a/config.hin b/config.hin
new file mode 100644
index 0000000..ff0c48b
--- /dev/null
+++ b/config.hin
@@ -0,0 +1,413 @@
+/* config.hin. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if translation of program messages to the user's native
+ language is requested. */
+#undef ENABLE_NLS
+
+/* Define on systems for which file names may have a so-called `drive letter'
+ prefix, define this to compute the length of that prefix, including the
+ colon. */
+#undef FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
+
+/* Define if the backslash character may also serve as a file name component
+ separator. */
+#undef FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
+
+#if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
+# define FILE_SYSTEM_PREFIX_LEN(Filename) \
+ ((Filename)[0] && (Filename)[1] == ':' ? 2 : 0)
+#else
+# define FILE_SYSTEM_PREFIX_LEN(Filename) 0
+#endif
+
+/* Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the
+ CoreFoundation framework. */
+#undef HAVE_CFLOCALECOPYCURRENT
+
+/* Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in
+ the CoreFoundation framework. */
+#undef HAVE_CFPREFERENCESCOPYAPPVALUE
+
+/* Define to 1 if the system has the type `clock_t'. */
+#undef HAVE_CLOCK_T
+
+/* Define if the GNU dcgettext() function is already present or preinstalled.
+ */
+#undef HAVE_DCGETTEXT
+
+/* Define to 1 if you have the declaration of `clearerr_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_CLEARERR_UNLOCKED
+
+/* Define to 1 if you have the declaration of `clock', and to 0 if you don't.
+ */
+#undef HAVE_DECL_CLOCK
+
+/* Define to 1 if you have the declaration of `feof_unlocked', and to 0 if you
+ don't. */
+#undef HAVE_DECL_FEOF_UNLOCKED
+
+/* Define to 1 if you have the declaration of `ferror_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_FERROR_UNLOCKED
+
+/* Define to 1 if you have the declaration of `fflush_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_FFLUSH_UNLOCKED
+
+/* Define to 1 if you have the declaration of `fgets_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_FGETS_UNLOCKED
+
+/* Define to 1 if you have the declaration of `fputc_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_FPUTC_UNLOCKED
+
+/* Define to 1 if you have the declaration of `fputs_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_FPUTS_UNLOCKED
+
+/* Define to 1 if you have the declaration of `fread_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_FREAD_UNLOCKED
+
+/* Define to 1 if you have the declaration of `fwrite_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_FWRITE_UNLOCKED
+
+/* Define to 1 if you have the declaration of `getchar_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_GETCHAR_UNLOCKED
+
+/* Define to 1 if you have the declaration of `getc_unlocked', and to 0 if you
+ don't. */
+#undef HAVE_DECL_GETC_UNLOCKED
+
+/* Define to 1 if you have the declaration of `getenv', and to 0 if you don't.
+ */
+#undef HAVE_DECL_GETENV
+
+/* Define to 1 if you have the declaration of `getrusage', and to 0 if you
+ don't. */
+#undef HAVE_DECL_GETRUSAGE
+
+/* Define to 1 if you have a declaration of mbswidth() in <wchar.h>, and to 0
+ otherwise. */
+#undef HAVE_DECL_MBSWIDTH_IN_WCHAR_H
+
+/* Define to 1 if you have the declaration of `putchar_unlocked', and to 0 if
+ you don't. */
+#undef HAVE_DECL_PUTCHAR_UNLOCKED
+
+/* Define to 1 if you have the declaration of `putc_unlocked', and to 0 if you
+ don't. */
+#undef HAVE_DECL_PUTC_UNLOCKED
+
+/* Define to 1 if you have the declaration of `strdup', and to 0 if you don't.
+ */
+#undef HAVE_DECL_STRDUP
+
+/* Define to 1 if you have the declaration of `strerror_r', and to 0 if you
+ don't. */
+#undef HAVE_DECL_STRERROR_R
+
+/* Define to 1 if you have the declaration of `strndup', and to 0 if you
+ don't. */
+#undef HAVE_DECL_STRNDUP
+
+/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
+ don't. */
+#undef HAVE_DECL_STRNLEN
+
+/* Define to 1 if you have the declaration of `sysconf', and to 0 if you
+ don't. */
+#undef HAVE_DECL_SYSCONF
+
+/* Define to 1 if you have the declaration of `times', and to 0 if you don't.
+ */
+#undef HAVE_DECL_TIMES
+
+/* Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.
+ */
+#undef HAVE_DECL_WCWIDTH
+
+/* Define to 1 if you have the `dup2' function. */
+#undef HAVE_DUP2
+
+/* Define to 1 if you have the `fork' function. */
+#undef HAVE_FORK
+
+/* Define to 1 if you have the <getopt.h> header file. */
+#undef HAVE_GETOPT_H
+
+/* Define to 1 if you have the `getopt_long_only' function. */
+#undef HAVE_GETOPT_LONG_ONLY
+
+/* Define if the GNU gettext() function is already present or preinstalled. */
+#undef HAVE_GETTEXT
+
+/* Define if you have the iconv() function. */
+#undef HAVE_ICONV
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define if <inttypes.h> exists, doesn't clash with <sys/types.h>, and
+ declares uintmax_t. */
+#undef HAVE_INTTYPES_H_WITH_UINTMAX
+
+/* Define to 1 if you have the `isascii' function. */
+#undef HAVE_ISASCII
+
+/* Define to 1 if you have the `iswcntrl' function. */
+#undef HAVE_ISWCNTRL
+
+/* Define to 1 if you have the `iswprint' function. */
+#undef HAVE_ISWPRINT
+
+/* Define to 1 if you have the <locale.h> header file. */
+#undef HAVE_LOCALE_H
+
+/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
+ to 0 otherwise. */
+#undef HAVE_MALLOC
+
+/* Define to 1 if mbrtowc and mbstate_t are properly declared. */
+#undef HAVE_MBRTOWC
+
+/* Define to 1 if you have the `mbsinit' function. */
+#undef HAVE_MBSINIT
+
+/* Define to 1 if <wchar.h> declares mbstate_t. */
+#undef HAVE_MBSTATE_T
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if libc includes obstacks. */
+#undef HAVE_OBSTACK
+
+/* Define to 1 if you have the `setlocale' function. */
+#undef HAVE_SETLOCALE
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#undef HAVE_STDBOOL_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define if <stdint.h> exists, doesn't clash with <sys/types.h>, and declares
+ uintmax_t. */
+#undef HAVE_STDINT_H_WITH_UINTMAX
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the `stpcpy' function. */
+#undef HAVE_STPCPY
+
+/* Define to 1 if you have the `strdup' function. */
+#undef HAVE_STRDUP
+
+/* Define to 1 if you have the `strerror' function. */
+#undef HAVE_STRERROR
+
+/* Define to 1 if you have the `strerror_r' function. */
+#undef HAVE_STRERROR_R
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define if you have the strndup() function and it works. */
+#undef HAVE_STRNDUP
+
+/* Define to 1 if you have the `strtol' function. */
+#undef HAVE_STRTOL
+
+/* Define to 1 if you have the `strtoul' function. */
+#undef HAVE_STRTOUL
+
+/* Define to 1 if the system has the type `struct tms'. */
+#undef HAVE_STRUCT_TMS
+
+/* Define to 1 if you have the `strverscmp' function. */
+#undef HAVE_STRVERSCMP
+
+/* Define to 1 if you have the <sys/resource.h> header file. */
+#undef HAVE_SYS_RESOURCE_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/times.h> header file. */
+#undef HAVE_SYS_TIMES_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have <sys/wait.h> that is POSIX.1 compatible. */
+#undef HAVE_SYS_WAIT_H
+
+/* Define to 1 if you have the `times' function. */
+#undef HAVE_TIMES
+
+/* Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>. */
+#undef HAVE_UINTMAX_T
+
+/* Define to 1 if the system has the type `uintptr_t'. */
+#undef HAVE_UINTPTR_T
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define if you have the 'unsigned long long' type. */
+#undef HAVE_UNSIGNED_LONG_LONG
+
+/* Define to 1 if you have the `vfork' function. */
+#undef HAVE_VFORK
+
+/* Define to 1 if you have the <vfork.h> header file. */
+#undef HAVE_VFORK_H
+
+/* Define to 1 if you have the `waitpid' function. */
+#undef HAVE_WAITPID
+
+/* Define to 1 if you have the <wchar.h> header file. */
+#undef HAVE_WCHAR_H
+
+/* Define to 1 if you have the <wctype.h> header file. */
+#undef HAVE_WCTYPE_H
+
+/* Define to 1 if you have the `wcwidth' function. */
+#undef HAVE_WCWIDTH
+
+/* Define to 1 if `fork' works. */
+#undef HAVE_WORKING_FORK
+
+/* Define to 1 if `vfork' works. */
+#undef HAVE_WORKING_VFORK
+
+/* Define to 1 if the system has the type `_Bool'. */
+#undef HAVE__BOOL
+
+#if FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
+# define ISSLASH(C) ((C) == '/' || (C) == '\\')
+#else
+# define ISSLASH(C) ((C) == '/')
+#endif
+
+/* Define to the GNU M4 executable name. */
+#undef M4
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Define to 1 if strerror_r returns char *. */
+#undef STRERROR_R_CHAR_P
+
+/* Define to 1 if you want getc etc. to use unlocked I/O if available.
+ Unlocked I/O can improve performance in unithreaded apps, but it is not
+ safe for multithreaded apps. */
+#undef USE_UNLOCKED_IO
+
+/* Version number of package */
+#undef VERSION
+
+/* Define if using the dmalloc debugging malloc package */
+#undef WITH_DMALLOC
+
+/* Define to 1 to internationalize bison runtime messages. */
+#undef YYENABLE_NLS
+
+/* Define to 1 if `lex' declares `yytext' as a `char *' by default, not a
+ `char[]'. */
+#undef YYTEXT_POINTER
+
+/* Define to 1 if on AIX 3.
+ System headers sometimes define this.
+ We just want to avoid a redefinition error message. */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+
+/* Enable GNU extensions on systems that have them. */
+#ifndef _GNU_SOURCE
+# undef _GNU_SOURCE
+#endif
+
+/* Define to 1 if on MINIX. */
+#undef _MINIX
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+ this defined. */
+#undef _POSIX_1_SOURCE
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+#undef _POSIX_SOURCE
+
+/* Enable extensions on Solaris. */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
+#endif
+
+/* Define to rpl_ if the getopt replacement functions and variables should be
+ used. */
+#undef __GETOPT_PREFIX
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+ calls it, or to nothing if 'inline' is not supported under any name. */
+#ifndef __cplusplus
+#undef inline
+#endif
+
+/* Define to 1 if the compiler is checking for lint. */
+#undef lint
+
+/* Define to rpl_malloc if the replacement function should be used. */
+#undef malloc
+
+/* Define to a type if <wchar.h> does not define. */
+#undef mbstate_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef pid_t
+
+/* Define to rpl_strndup if the replacement function should be used, */
+#undef strndup
+
+/* Define to rpl_strnlen if the replacement function should be used. */
+#undef strnlen
+
+/* Define to unsigned long or unsigned long long if <stdint.h> and
+ <inttypes.h> don't define. */
+#undef uintmax_t
+
+/* Define as `fork' if `vfork' does not work. */
+#undef vfork
diff --git a/config.log b/config.log
new file mode 100644
index 0000000..3d02da7
--- /dev/null
+++ b/config.log
@@ -0,0 +1,2439 @@
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by GNU Bison configure 2.3, which was
+generated by GNU Autoconf 2.59. Invocation command line was
+
+ $ ./configure --prefix /home/phanna/src/bison
+
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = phanna.cnc.corp.google.com
+uname -m = x86_64
+uname -r = 2.6.18.5-gg34workstation-mixed64-32
+uname -s = Linux
+uname -v = #1 SMP Thu May 8 01:31:23 UTC 2008
+
+/usr/bin/uname -p = unknown
+/bin/uname -X = unknown
+
+/bin/arch = x86_64
+/usr/bin/arch -k = unknown
+/usr/convex/getsysinfo = unknown
+hostinfo = unknown
+/bin/machine = unknown
+/usr/bin/oslevel = unknown
+/bin/universe = unknown
+
+PATH: /usr/local/symlinks
+PATH: /usr/local/scripts
+PATH: /usr/local/sbin
+PATH: /usr/local/bin
+PATH: /usr/sbin
+PATH: /usr/bin
+PATH: /sbin
+PATH: /bin
+PATH: /usr/bin/X11
+PATH: /home/phanna/jswat-4.2/bin
+PATH: /usr/local/google/workspace/WebKit/out/host/linux-x86/bin
+PATH: /usr/local/google/workspace/WebKit/prebuilt/Linux/toolchain/arm-elf
+PATH: /usr/local/google/workspace/WebKit/tools/qtools
+PATH: /usr/local/google/workspace/WebKit/prebuilt/Linux/toolchain-eabi-4.2.1/bin
+PATH: /usr/local/google/workspace/WebKit/prebuilt/Linux/toolchain-eabi-4.2.1/bin
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+configure:1402: checking for a BSD-compatible install
+configure:1457: result: /usr/bin/install -c
+configure:1468: checking whether build environment is sane
+configure:1511: result: yes
+configure:1576: checking for gawk
+configure:1592: found /usr/bin/gawk
+configure:1602: result: gawk
+configure:1612: checking whether make sets $(MAKE)
+configure:1632: result: yes
+configure:1821: checking for style of include used by make
+configure:1849: result: GNU
+configure:1920: checking for gcc
+configure:1936: found /usr/bin/gcc
+configure:1946: result: gcc
+configure:2190: checking for C compiler version
+configure:2193: gcc --version </dev/null >&5
+gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+Copyright (C) 2006 Free Software Foundation, Inc.
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+configure:2196: $? = 0
+configure:2198: gcc -v </dev/null >&5
+Using built-in specs.
+Target: i486-linux-gnu
+Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.0 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-awt=gtk-default --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --with-tune=pentium4 --enable-checking=release i486-linux-gnu
+Thread model: posix
+gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+configure:2201: $? = 0
+configure:2203: gcc -V </dev/null >&5
+gcc: '-V' option must have argument
+configure:2206: $? = 1
+configure:2229: checking for C compiler default output file name
+configure:2232: gcc conftest.c >&5
+configure:2235: $? = 0
+configure:2281: result: a.out
+configure:2286: checking whether the C compiler works
+configure:2292: ./a.out
+configure:2295: $? = 0
+configure:2312: result: yes
+configure:2319: checking whether we are cross compiling
+configure:2321: result: no
+configure:2324: checking for suffix of executables
+configure:2326: gcc -o conftest conftest.c >&5
+configure:2329: $? = 0
+configure:2354: result:
+configure:2360: checking for suffix of object files
+configure:2381: gcc -c conftest.c >&5
+configure:2384: $? = 0
+configure:2406: result: o
+configure:2410: checking whether we are using the GNU C compiler
+configure:2434: gcc -c conftest.c >&5
+configure:2440: $? = 0
+configure:2443: test -z || test ! -s conftest.err
+configure:2446: $? = 0
+configure:2449: test -s conftest.o
+configure:2452: $? = 0
+configure:2465: result: yes
+configure:2471: checking whether gcc accepts -g
+configure:2492: gcc -c -g conftest.c >&5
+configure:2498: $? = 0
+configure:2501: test -z || test ! -s conftest.err
+configure:2504: $? = 0
+configure:2507: test -s conftest.o
+configure:2510: $? = 0
+configure:2521: result: yes
+configure:2538: checking for gcc option to accept ANSI C
+configure:2608: gcc -c -g -O2 conftest.c >&5
+configure:2614: $? = 0
+configure:2617: test -z || test ! -s conftest.err
+configure:2620: $? = 0
+configure:2623: test -s conftest.o
+configure:2626: $? = 0
+configure:2644: result: none needed
+configure:2662: gcc -c -g -O2 conftest.c >&5
+conftest.c:2: error: syntax error before 'me'
+configure:2668: $? = 1
+configure: failed program was:
+| #ifndef __cplusplus
+| choke me
+| #endif
+configure:2800: checking dependency style of gcc
+configure:2890: result: gcc3
+configure:2913: checking how to run the C preprocessor
+configure:2948: gcc -E conftest.c
+configure:2954: $? = 0
+configure:2986: gcc -E conftest.c
+conftest.c:12:28: error: ac_nonexistent.h: No such file or directory
+configure:2992: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| /* end confdefs.h. */
+| #include <ac_nonexistent.h>
+configure:3031: result: gcc -E
+configure:3055: gcc -E conftest.c
+configure:3061: $? = 0
+configure:3093: gcc -E conftest.c
+conftest.c:12:28: error: ac_nonexistent.h: No such file or directory
+configure:3099: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| /* end confdefs.h. */
+| #include <ac_nonexistent.h>
+configure:3143: checking for egrep
+configure:3153: result: grep -E
+configure:3159: checking for AIX
+configure:3181: result: no
+configure:3187: checking for ANSI C header files
+configure:3212: gcc -c -g -O2 conftest.c >&5
+configure:3218: $? = 0
+configure:3221: test -z || test ! -s conftest.err
+configure:3224: $? = 0
+configure:3227: test -s conftest.o
+configure:3230: $? = 0
+configure:3319: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c: In function 'main':
+conftest.c:29: warning: incompatible implicit declaration of built-in function 'exit'
+configure:3322: $? = 0
+configure:3324: ./conftest
+configure:3327: $? = 0
+configure:3342: result: yes
+configure:3366: checking for sys/types.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for sys/stat.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for stdlib.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for string.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for memory.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for strings.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for inttypes.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for stdint.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3366: checking for unistd.h
+configure:3382: gcc -c -g -O2 conftest.c >&5
+configure:3388: $? = 0
+configure:3391: test -z || test ! -s conftest.err
+configure:3394: $? = 0
+configure:3397: test -s conftest.o
+configure:3400: $? = 0
+configure:3411: result: yes
+configure:3433: checking minix/config.h usability
+configure:3445: gcc -c -g -O2 conftest.c >&5
+conftest.c:56:26: error: minix/config.h: No such file or directory
+configure:3451: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| /* end confdefs.h. */
+| #include <stdio.h>
+| #if HAVE_SYS_TYPES_H
+| # include <sys/types.h>
+| #endif
+| #if HAVE_SYS_STAT_H
+| # include <sys/stat.h>
+| #endif
+| #if STDC_HEADERS
+| # include <stdlib.h>
+| # include <stddef.h>
+| #else
+| # if HAVE_STDLIB_H
+| # include <stdlib.h>
+| # endif
+| #endif
+| #if HAVE_STRING_H
+| # if !STDC_HEADERS && HAVE_MEMORY_H
+| # include <memory.h>
+| # endif
+| # include <string.h>
+| #endif
+| #if HAVE_STRINGS_H
+| # include <strings.h>
+| #endif
+| #if HAVE_INTTYPES_H
+| # include <inttypes.h>
+| #else
+| # if HAVE_STDINT_H
+| # include <stdint.h>
+| # endif
+| #endif
+| #if HAVE_UNISTD_H
+| # include <unistd.h>
+| #endif
+| #include <minix/config.h>
+configure:3473: result: no
+configure:3477: checking minix/config.h presence
+configure:3487: gcc -E conftest.c
+conftest.c:22:26: error: minix/config.h: No such file or directory
+configure:3493: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| /* end confdefs.h. */
+| #include <minix/config.h>
+configure:3513: result: no
+configure:3548: checking for minix/config.h
+configure:3555: result: no
+configure:3594: checking whether it is safe to define __EXTENSIONS__
+configure:3617: gcc -c -g -O2 conftest.c >&5
+configure:3623: $? = 0
+configure:3626: test -z || test ! -s conftest.err
+configure:3629: $? = 0
+configure:3632: test -s conftest.o
+configure:3635: $? = 0
+configure:3646: result: yes
+configure:3706: checking for gcc
+configure:3732: result: gcc
+configure:3976: checking for C compiler version
+configure:3979: gcc --version </dev/null >&5
+gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+Copyright (C) 2006 Free Software Foundation, Inc.
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+configure:3982: $? = 0
+configure:3984: gcc -v </dev/null >&5
+Using built-in specs.
+Target: i486-linux-gnu
+Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.0 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-awt=gtk-default --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --with-tune=pentium4 --enable-checking=release i486-linux-gnu
+Thread model: posix
+gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+configure:3987: $? = 0
+configure:3989: gcc -V </dev/null >&5
+gcc: '-V' option must have argument
+configure:3992: $? = 1
+configure:3995: checking whether we are using the GNU C compiler
+configure:4050: result: yes
+configure:4056: checking whether gcc accepts -g
+configure:4106: result: yes
+configure:4123: checking for gcc option to accept ANSI C
+configure:4229: result: none needed
+configure:4247: gcc -c -g -O2 conftest.c >&5
+conftest.c:2: error: syntax error before 'me'
+configure:4253: $? = 1
+configure: failed program was:
+| #ifndef __cplusplus
+| choke me
+| #endif
+configure:4385: checking dependency style of gcc
+configure:4475: result: gcc3
+configure:4538: checking for gcc
+configure:4564: result: gcc
+configure:4808: checking for C compiler version
+configure:4811: gcc --version </dev/null >&5
+gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+Copyright (C) 2006 Free Software Foundation, Inc.
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+configure:4814: $? = 0
+configure:4816: gcc -v </dev/null >&5
+Using built-in specs.
+Target: i486-linux-gnu
+Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.0 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-awt=gtk-default --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --with-tune=pentium4 --enable-checking=release i486-linux-gnu
+Thread model: posix
+gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+configure:4819: $? = 0
+configure:4821: gcc -V </dev/null >&5
+gcc: '-V' option must have argument
+configure:4824: $? = 1
+configure:4827: checking whether we are using the GNU C compiler
+configure:4882: result: yes
+configure:4888: checking whether gcc accepts -g
+configure:4938: result: yes
+configure:4955: checking for gcc option to accept ANSI C
+configure:5061: result: none needed
+configure:5079: gcc -c -g -O2 conftest.c >&5
+conftest.c:2: error: syntax error before 'me'
+configure:5085: $? = 1
+configure: failed program was:
+| #ifndef __cplusplus
+| choke me
+| #endif
+configure:5217: checking dependency style of gcc
+configure:5307: result: gcc3
+configure:6007: gcc -c -g -O2 conftest.c >&5
+configure:6013: $? = 0
+configure:6016: test -z || test ! -s conftest.err
+configure:6019: $? = 0
+configure:6022: test -s conftest.o
+configure:6025: $? = 0
+configure:6064: checking for flex
+configure:6080: found /usr/bin/flex
+configure:6090: result: flex
+configure:6103: checking for yywrap in -lfl
+configure:6133: gcc -o conftest -g -O2 conftest.c -lfl >&5
+configure:6139: $? = 0
+configure:6142: test -z || test ! -s conftest.err
+configure:6145: $? = 0
+configure:6148: test -s conftest
+configure:6151: $? = 0
+configure:6164: result: yes
+configure:6241: checking lex output file root
+configure:6252: flex conftest.l
+configure:6255: $? = 0
+configure:6267: result: lex.yy
+configure:6272: checking whether yytext is a pointer
+configure:6288: gcc -o conftest -g -O2 conftest.c -lfl >&5
+configure:6294: $? = 0
+configure:6297: test -z || test ! -s conftest.err
+configure:6300: $? = 0
+configure:6303: test -s conftest
+configure:6306: $? = 0
+configure:6320: result: yes
+configure:6335: checking for bison
+configure:6351: found /usr/bin/bison
+configure:6361: result: bison -y
+configure:6413: checking for ranlib
+configure:6429: found /usr/bin/ranlib
+configure:6440: result: ranlib
+configure:6456: checking for gm4
+configure:6489: result: no
+configure:6456: checking for gnum4
+configure:6489: result: no
+configure:6456: checking for m4
+configure:6474: found /usr/bin/m4
+configure:6486: result: /usr/bin/m4
+configure:6497: checking whether m4 supports frozen files
+configure:6509: result: yes
+configure:6541: checking locale.h usability
+configure:6553: gcc -c -g -O2 conftest.c >&5
+configure:6559: $? = 0
+configure:6562: test -z || test ! -s conftest.err
+configure:6565: $? = 0
+configure:6568: test -s conftest.o
+configure:6571: $? = 0
+configure:6581: result: yes
+configure:6585: checking locale.h presence
+configure:6595: gcc -E conftest.c
+configure:6601: $? = 0
+configure:6621: result: yes
+configure:6656: checking for locale.h
+configure:6663: result: yes
+configure:6541: checking wchar.h usability
+configure:6553: gcc -c -g -O2 conftest.c >&5
+configure:6559: $? = 0
+configure:6562: test -z || test ! -s conftest.err
+configure:6565: $? = 0
+configure:6568: test -s conftest.o
+configure:6571: $? = 0
+configure:6581: result: yes
+configure:6585: checking wchar.h presence
+configure:6595: gcc -E conftest.c
+configure:6601: $? = 0
+configure:6621: result: yes
+configure:6656: checking for wchar.h
+configure:6663: result: yes
+configure:6541: checking wctype.h usability
+configure:6553: gcc -c -g -O2 conftest.c >&5
+configure:6559: $? = 0
+configure:6562: test -z || test ! -s conftest.err
+configure:6565: $? = 0
+configure:6568: test -s conftest.o
+configure:6571: $? = 0
+configure:6581: result: yes
+configure:6585: checking wctype.h presence
+configure:6595: gcc -E conftest.c
+configure:6601: $? = 0
+configure:6621: result: yes
+configure:6656: checking for wctype.h
+configure:6663: result: yes
+configure:6688: checking for stdbool.h that conforms to C99
+configure:6776: gcc -c -g -O2 conftest.c >&5
+configure:6782: $? = 0
+configure:6785: test -z || test ! -s conftest.err
+configure:6788: $? = 0
+configure:6791: test -s conftest.o
+configure:6794: $? = 0
+configure:6805: result: yes
+configure:6807: checking for _Bool
+configure:6831: gcc -c -g -O2 conftest.c >&5
+configure:6837: $? = 0
+configure:6840: test -z || test ! -s conftest.err
+configure:6843: $? = 0
+configure:6846: test -s conftest.o
+configure:6849: $? = 0
+configure:6860: result: yes
+configure:6899: checking for inline
+configure:6920: gcc -c -g -O2 conftest.c >&5
+configure:6926: $? = 0
+configure:6929: test -z || test ! -s conftest.err
+configure:6932: $? = 0
+configure:6935: test -s conftest.o
+configure:6938: $? = 0
+configure:6950: result: inline
+configure:6971: checking for uintptr_t
+configure:6995: gcc -c -g -O2 conftest.c >&5
+configure:7001: $? = 0
+configure:7004: test -z || test ! -s conftest.err
+configure:7007: $? = 0
+configure:7010: test -s conftest.o
+configure:7013: $? = 0
+configure:7024: result: yes
+configure:7045: checking for setlocale
+configure:7102: gcc -o conftest -g -O2 conftest.c >&5
+configure:7108: $? = 0
+configure:7111: test -z || test ! -s conftest.err
+configure:7114: $? = 0
+configure:7117: test -s conftest
+configure:7120: $? = 0
+configure:7132: result: yes
+configure:7045: checking for isascii
+configure:7102: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c:57: warning: conflicting types for built-in function 'isascii'
+configure:7108: $? = 0
+configure:7111: test -z || test ! -s conftest.err
+configure:7114: $? = 0
+configure:7117: test -s conftest
+configure:7120: $? = 0
+configure:7132: result: yes
+configure:7045: checking for iswprint
+configure:7102: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c:58: warning: conflicting types for built-in function 'iswprint'
+configure:7108: $? = 0
+configure:7111: test -z || test ! -s conftest.err
+configure:7114: $? = 0
+configure:7117: test -s conftest
+configure:7120: $? = 0
+configure:7132: result: yes
+configure:7045: checking for mbsinit
+configure:7102: gcc -o conftest -g -O2 conftest.c >&5
+configure:7108: $? = 0
+configure:7111: test -z || test ! -s conftest.err
+configure:7114: $? = 0
+configure:7117: test -s conftest
+configure:7120: $? = 0
+configure:7132: result: yes
+configure:7154: checking if malloc debugging is wanted
+configure:7175: result: no
+configure:7180: checking for pid_t
+configure:7204: gcc -c -g -O2 conftest.c >&5
+configure:7210: $? = 0
+configure:7213: test -z || test ! -s conftest.err
+configure:7216: $? = 0
+configure:7219: test -s conftest.o
+configure:7222: $? = 0
+configure:7233: result: yes
+configure:7245: checking for sys/wait.h that is POSIX.1 compatible
+configure:7276: gcc -c -g -O2 conftest.c >&5
+configure:7282: $? = 0
+configure:7285: test -z || test ! -s conftest.err
+configure:7288: $? = 0
+configure:7291: test -s conftest.o
+configure:7294: $? = 0
+configure:7305: result: yes
+configure:7320: checking for dup2
+configure:7377: gcc -o conftest -g -O2 conftest.c >&5
+configure:7383: $? = 0
+configure:7386: test -z || test ! -s conftest.err
+configure:7389: $? = 0
+configure:7392: test -s conftest
+configure:7395: $? = 0
+configure:7407: result: yes
+configure:7320: checking for waitpid
+configure:7377: gcc -o conftest -g -O2 conftest.c >&5
+configure:7383: $? = 0
+configure:7386: test -z || test ! -s conftest.err
+configure:7389: $? = 0
+configure:7392: test -s conftest
+configure:7395: $? = 0
+configure:7407: result: yes
+configure:7423: checking for unistd.h
+configure:7428: result: yes
+configure:7432: checking vfork.h usability
+configure:7444: gcc -c -g -O2 conftest.c >&5
+conftest.c:74:19: error: vfork.h: No such file or directory
+configure:7450: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| /* end confdefs.h. */
+| #include <stdio.h>
+| #if HAVE_SYS_TYPES_H
+| # include <sys/types.h>
+| #endif
+| #if HAVE_SYS_STAT_H
+| # include <sys/stat.h>
+| #endif
+| #if STDC_HEADERS
+| # include <stdlib.h>
+| # include <stddef.h>
+| #else
+| # if HAVE_STDLIB_H
+| # include <stdlib.h>
+| # endif
+| #endif
+| #if HAVE_STRING_H
+| # if !STDC_HEADERS && HAVE_MEMORY_H
+| # include <memory.h>
+| # endif
+| # include <string.h>
+| #endif
+| #if HAVE_STRINGS_H
+| # include <strings.h>
+| #endif
+| #if HAVE_INTTYPES_H
+| # include <inttypes.h>
+| #else
+| # if HAVE_STDINT_H
+| # include <stdint.h>
+| # endif
+| #endif
+| #if HAVE_UNISTD_H
+| # include <unistd.h>
+| #endif
+| #include <vfork.h>
+configure:7472: result: no
+configure:7476: checking vfork.h presence
+configure:7486: gcc -E conftest.c
+conftest.c:40:19: error: vfork.h: No such file or directory
+configure:7492: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| /* end confdefs.h. */
+| #include <vfork.h>
+configure:7512: result: no
+configure:7547: checking for vfork.h
+configure:7554: result: no
+configure:7572: checking for fork
+configure:7629: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c:64: warning: conflicting types for built-in function 'fork'
+configure:7635: $? = 0
+configure:7638: test -z || test ! -s conftest.err
+configure:7641: $? = 0
+configure:7644: test -s conftest
+configure:7647: $? = 0
+configure:7659: result: yes
+configure:7572: checking for vfork
+configure:7629: gcc -o conftest -g -O2 conftest.c >&5
+configure:7635: $? = 0
+configure:7638: test -z || test ! -s conftest.err
+configure:7641: $? = 0
+configure:7644: test -s conftest
+configure:7647: $? = 0
+configure:7659: result: yes
+configure:7670: checking for working fork
+configure:7693: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c: In function 'main':
+conftest.c:10: warning: incompatible implicit declaration of built-in function 'exit'
+configure:7696: $? = 0
+configure:7698: ./conftest
+configure:7701: $? = 0
+configure:7715: result: yes
+configure:7736: checking for working vfork
+configure:7869: result: yes
+configure:7916: checking sys/time.h usability
+configure:7928: gcc -c -g -O2 conftest.c >&5
+configure:7934: $? = 0
+configure:7937: test -z || test ! -s conftest.err
+configure:7940: $? = 0
+configure:7943: test -s conftest.o
+configure:7946: $? = 0
+configure:7956: result: yes
+configure:7960: checking sys/time.h presence
+configure:7970: gcc -E conftest.c
+configure:7976: $? = 0
+configure:7996: result: yes
+configure:8031: checking for sys/time.h
+configure:8038: result: yes
+configure:7916: checking sys/times.h usability
+configure:7928: gcc -c -g -O2 conftest.c >&5
+configure:7934: $? = 0
+configure:7937: test -z || test ! -s conftest.err
+configure:7940: $? = 0
+configure:7943: test -s conftest.o
+configure:7946: $? = 0
+configure:7956: result: yes
+configure:7960: checking sys/times.h presence
+configure:7970: gcc -E conftest.c
+configure:7976: $? = 0
+configure:7996: result: yes
+configure:8031: checking for sys/times.h
+configure:8038: result: yes
+configure:8055: checking for sys/resource.h
+configure:8078: gcc -c -g -O2 conftest.c >&5
+configure:8084: $? = 0
+configure:8087: test -z || test ! -s conftest.err
+configure:8090: $? = 0
+configure:8093: test -s conftest.o
+configure:8096: $? = 0
+configure:8107: result: yes
+configure:8122: checking for times
+configure:8179: gcc -o conftest -g -O2 conftest.c >&5
+configure:8185: $? = 0
+configure:8188: test -z || test ! -s conftest.err
+configure:8191: $? = 0
+configure:8194: test -s conftest
+configure:8197: $? = 0
+configure:8209: result: yes
+configure:8220: checking whether getrusage is declared
+configure:8255: gcc -c -g -O2 conftest.c >&5
+configure:8261: $? = 0
+configure:8264: test -z || test ! -s conftest.err
+configure:8267: $? = 0
+configure:8270: test -s conftest.o
+configure:8273: $? = 0
+configure:8284: result: yes
+configure:8300: checking whether times is declared
+configure:8335: gcc -c -g -O2 conftest.c >&5
+configure:8341: $? = 0
+configure:8344: test -z || test ! -s conftest.err
+configure:8347: $? = 0
+configure:8350: test -s conftest.o
+configure:8353: $? = 0
+configure:8364: result: yes
+configure:8380: checking whether clock is declared
+configure:8415: gcc -c -g -O2 conftest.c >&5
+conftest.c: In function 'main':
+conftest.c:99: error: 'clock' undeclared (first use in this function)
+conftest.c:99: error: (Each undeclared identifier is reported only once
+conftest.c:99: error: for each function it appears in.)
+configure:8421: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| #define HAVE_FORK 1
+| #define HAVE_VFORK 1
+| #define HAVE_WORKING_VFORK 1
+| #define HAVE_WORKING_FORK 1
+| #define HAVE_SYS_TIME_H 1
+| #define HAVE_SYS_TIMES_H 1
+| #define HAVE_SYS_RESOURCE_H 1
+| #define HAVE_TIMES 1
+| #define HAVE_DECL_GETRUSAGE 1
+| #define HAVE_DECL_TIMES 1
+| /* end confdefs.h. */
+| #include <stdio.h>
+| #if HAVE_SYS_TYPES_H
+| # include <sys/types.h>
+| #endif
+| #if HAVE_SYS_STAT_H
+| # include <sys/stat.h>
+| #endif
+| #if STDC_HEADERS
+| # include <stdlib.h>
+| # include <stddef.h>
+| #else
+| # if HAVE_STDLIB_H
+| # include <stdlib.h>
+| # endif
+| #endif
+| #if HAVE_STRING_H
+| # if !STDC_HEADERS && HAVE_MEMORY_H
+| # include <memory.h>
+| # endif
+| # include <string.h>
+| #endif
+| #if HAVE_STRINGS_H
+| # include <strings.h>
+| #endif
+| #if HAVE_INTTYPES_H
+| # include <inttypes.h>
+| #else
+| # if HAVE_STDINT_H
+| # include <stdint.h>
+| # endif
+| #endif
+| #if HAVE_UNISTD_H
+| # include <unistd.h>
+| #endif
+| #if HAVE_SYS_TIME_H
+| # include <sys/time.h>
+| #endif
+| #if HAVE_SYS_TIMES_H
+| # include <sys/times.h>
+| #endif
+| #if HAVE_SYS_RESOURCE_H
+| # include <sys/resource.h>
+| #endif
+|
+|
+| int
+| main ()
+| {
+| #ifndef clock
+| char *p = (char *) clock;
+| #endif
+|
+| ;
+| return 0;
+| }
+configure:8444: result: no
+configure:8460: checking whether sysconf is declared
+configure:8495: gcc -c -g -O2 conftest.c >&5
+configure:8501: $? = 0
+configure:8504: test -z || test ! -s conftest.err
+configure:8507: $? = 0
+configure:8510: test -s conftest.o
+configure:8513: $? = 0
+configure:8524: result: yes
+configure:8543: checking for clock_t
+configure:8578: gcc -c -g -O2 conftest.c >&5
+configure:8584: $? = 0
+configure:8587: test -z || test ! -s conftest.err
+configure:8590: $? = 0
+configure:8593: test -s conftest.o
+configure:8596: $? = 0
+configure:8607: result: yes
+configure:8617: checking for struct tms
+configure:8652: gcc -c -g -O2 conftest.c >&5
+configure:8658: $? = 0
+configure:8661: test -z || test ! -s conftest.err
+configure:8664: $? = 0
+configure:8667: test -s conftest.o
+configure:8670: $? = 0
+configure:8681: result: yes
+configure:8696: checking whether system is Windows or MSDOS
+configure:8720: gcc -c -g -O2 conftest.c >&5
+conftest.c: In function 'main':
+conftest.c:59: error: 'neither' undeclared (first use in this function)
+conftest.c:59: error: (Each undeclared identifier is reported only once
+conftest.c:59: error: for each function it appears in.)
+conftest.c:59: error: syntax error before 'MSDOS'
+configure:8726: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| #define HAVE_FORK 1
+| #define HAVE_VFORK 1
+| #define HAVE_WORKING_VFORK 1
+| #define HAVE_WORKING_FORK 1
+| #define HAVE_SYS_TIME_H 1
+| #define HAVE_SYS_TIMES_H 1
+| #define HAVE_SYS_RESOURCE_H 1
+| #define HAVE_TIMES 1
+| #define HAVE_DECL_GETRUSAGE 1
+| #define HAVE_DECL_TIMES 1
+| #define HAVE_DECL_CLOCK 0
+| #define HAVE_DECL_SYSCONF 1
+| #define HAVE_CLOCK_T 1
+| #define HAVE_STRUCT_TMS 1
+| /* end confdefs.h. */
+|
+| int
+| main ()
+| {
+| #if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
+| neither MSDOS nor Windows
+| #endif
+| ;
+| return 0;
+| }
+configure:8750: result: no
+configure:8779: checking whether strerror_r is declared
+configure:8803: gcc -c -g -O2 conftest.c >&5
+configure:8809: $? = 0
+configure:8812: test -z || test ! -s conftest.err
+configure:8815: $? = 0
+configure:8818: test -s conftest.o
+configure:8821: $? = 0
+configure:8832: result: yes
+configure:8854: checking for strerror_r
+configure:8911: gcc -o conftest -g -O2 conftest.c >&5
+configure:8917: $? = 0
+configure:8920: test -z || test ! -s conftest.err
+configure:8923: $? = 0
+configure:8926: test -s conftest
+configure:8929: $? = 0
+configure:8941: result: yes
+configure:8951: checking whether strerror_r returns char *
+configure:8979: gcc -c -g -O2 conftest.c >&5
+configure:8985: $? = 0
+configure:8988: test -z || test ! -s conftest.err
+configure:8991: $? = 0
+configure:8994: test -s conftest.o
+configure:8997: $? = 0
+configure:9057: result: yes
+configure:9083: checking getopt.h usability
+configure:9095: gcc -c -g -O2 conftest.c >&5
+configure:9101: $? = 0
+configure:9104: test -z || test ! -s conftest.err
+configure:9107: $? = 0
+configure:9110: test -s conftest.o
+configure:9113: $? = 0
+configure:9123: result: yes
+configure:9127: checking getopt.h presence
+configure:9137: gcc -E conftest.c
+configure:9143: $? = 0
+configure:9163: result: yes
+configure:9198: checking for getopt.h
+configure:9205: result: yes
+configure:9227: checking for getopt_long_only
+configure:9284: gcc -o conftest -g -O2 conftest.c >&5
+configure:9290: $? = 0
+configure:9293: test -z || test ! -s conftest.err
+configure:9296: $? = 0
+configure:9299: test -s conftest
+configure:9302: $? = 0
+configure:9314: result: yes
+configure:9329: checking whether optreset is declared
+configure:9354: gcc -c -g -O2 conftest.c >&5
+conftest.c: In function 'main':
+conftest.c:67: error: 'optreset' undeclared (first use in this function)
+conftest.c:67: error: (Each undeclared identifier is reported only once
+conftest.c:67: error: for each function it appears in.)
+configure:9360: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| #define HAVE_FORK 1
+| #define HAVE_VFORK 1
+| #define HAVE_WORKING_VFORK 1
+| #define HAVE_WORKING_FORK 1
+| #define HAVE_SYS_TIME_H 1
+| #define HAVE_SYS_TIMES_H 1
+| #define HAVE_SYS_RESOURCE_H 1
+| #define HAVE_TIMES 1
+| #define HAVE_DECL_GETRUSAGE 1
+| #define HAVE_DECL_TIMES 1
+| #define HAVE_DECL_CLOCK 0
+| #define HAVE_DECL_SYSCONF 1
+| #define HAVE_CLOCK_T 1
+| #define HAVE_STRUCT_TMS 1
+| #define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 0
+| #define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 0
+| #define HAVE_DECL_STRERROR_R 1
+| #define HAVE_STRERROR_R 1
+| #define STRERROR_R_CHAR_P 1
+| #define HAVE_GETOPT_H 1
+| #define HAVE_GETOPT_LONG_ONLY 1
+| /* end confdefs.h. */
+| #include <getopt.h>
+|
+| int
+| main ()
+| {
+| #ifndef optreset
+| char *p = (char *) optreset;
+| #endif
+|
+| ;
+| return 0;
+| }
+configure:9383: result: no
+configure:9392: checking for working GNU getopt function
+configure:9483: gcc -o conftest -g -O2 conftest.c >&5
+configure:9486: $? = 0
+configure:9488: ./conftest
+conftest: invalid option -- +
+configure:9491: $? = 0
+configure:9505: result: yes
+configure:9513: checking whether getenv is declared
+configure:9537: gcc -c -g -O2 conftest.c >&5
+configure:9543: $? = 0
+configure:9546: test -z || test ! -s conftest.err
+configure:9549: $? = 0
+configure:9552: test -s conftest.o
+configure:9555: $? = 0
+configure:9566: result: yes
+configure:9600: checking whether NLS is requested
+configure:9609: result: yes
+configure:9647: checking for msgfmt
+configure: trying /usr/bin/msgfmt...
+0 translated messages.
+configure:9679: result: /usr/bin/msgfmt
+configure:9688: checking for gmsgfmt
+configure:9719: result: /usr/bin/msgfmt
+configure:9758: checking for xgettext
+configure: trying /usr/bin/xgettext...
+/usr/bin/xgettext: warning: file `/dev/null' extension `' is unknown; will try C
+configure:9790: result: /usr/bin/xgettext
+configure:9830: checking for msgmerge
+configure: trying /usr/bin/msgmerge...
+configure:9861: result: /usr/bin/msgmerge
+configure:9918: checking build system type
+configure:9936: result: x86_64-unknown-linux-gnu
+configure:9944: checking host system type
+configure:9958: result: x86_64-unknown-linux-gnu
+configure:9990: checking for ld used by GCC
+configure:10054: result: /usr/bin/ld
+configure:10063: checking if the linker (/usr/bin/ld) is GNU ld
+configure:10076: result: yes
+configure:10083: checking for shared library run path origin
+configure:10096: result: done
+configure:10547: checking for inttypes.h
+configure:10569: gcc -c -g -O2 conftest.c >&5
+configure:10575: $? = 0
+configure:10578: test -z || test ! -s conftest.err
+configure:10581: $? = 0
+configure:10584: test -s conftest.o
+configure:10587: $? = 0
+configure:10598: result: yes
+configure:10609: checking for stdint.h
+configure:10631: gcc -c -g -O2 conftest.c >&5
+configure:10637: $? = 0
+configure:10640: test -z || test ! -s conftest.err
+configure:10643: $? = 0
+configure:10646: test -s conftest.o
+configure:10649: $? = 0
+configure:10660: result: yes
+configure:10671: checking for unsigned long long
+configure:10693: gcc -o conftest -g -O2 conftest.c >&5
+configure:10699: $? = 0
+configure:10702: test -z || test ! -s conftest.err
+configure:10705: $? = 0
+configure:10708: test -s conftest
+configure:10711: $? = 0
+configure:10723: result: yes
+configure:10755: checking whether strdup is declared
+configure:10779: gcc -c -g -O2 conftest.c >&5
+configure:10785: $? = 0
+configure:10788: test -z || test ! -s conftest.err
+configure:10791: $? = 0
+configure:10794: test -s conftest.o
+configure:10797: $? = 0
+configure:10808: result: yes
+configure:10828: checking whether strndup is declared
+configure:10852: gcc -c -g -O2 conftest.c >&5
+configure:10858: $? = 0
+configure:10861: test -z || test ! -s conftest.err
+configure:10864: $? = 0
+configure:10867: test -s conftest.o
+configure:10870: $? = 0
+configure:10881: result: yes
+configure:10901: checking whether strnlen is declared
+configure:10925: gcc -c -g -O2 conftest.c >&5
+configure:10931: $? = 0
+configure:10934: test -z || test ! -s conftest.err
+configure:10937: $? = 0
+configure:10940: test -s conftest.o
+configure:10943: $? = 0
+configure:10954: result: yes
+configure:10974: checking whether clearerr_unlocked is declared
+configure:10998: gcc -c -g -O2 conftest.c >&5
+configure:11004: $? = 0
+configure:11007: test -z || test ! -s conftest.err
+configure:11010: $? = 0
+configure:11013: test -s conftest.o
+configure:11016: $? = 0
+configure:11027: result: yes
+configure:11047: checking whether feof_unlocked is declared
+configure:11071: gcc -c -g -O2 conftest.c >&5
+configure:11077: $? = 0
+configure:11080: test -z || test ! -s conftest.err
+configure:11083: $? = 0
+configure:11086: test -s conftest.o
+configure:11089: $? = 0
+configure:11100: result: yes
+configure:11120: checking whether ferror_unlocked is declared
+configure:11144: gcc -c -g -O2 conftest.c >&5
+configure:11150: $? = 0
+configure:11153: test -z || test ! -s conftest.err
+configure:11156: $? = 0
+configure:11159: test -s conftest.o
+configure:11162: $? = 0
+configure:11173: result: yes
+configure:11193: checking whether fflush_unlocked is declared
+configure:11217: gcc -c -g -O2 conftest.c >&5
+configure:11223: $? = 0
+configure:11226: test -z || test ! -s conftest.err
+configure:11229: $? = 0
+configure:11232: test -s conftest.o
+configure:11235: $? = 0
+configure:11246: result: yes
+configure:11266: checking whether fgets_unlocked is declared
+configure:11290: gcc -c -g -O2 conftest.c >&5
+configure:11296: $? = 0
+configure:11299: test -z || test ! -s conftest.err
+configure:11302: $? = 0
+configure:11305: test -s conftest.o
+configure:11308: $? = 0
+configure:11319: result: yes
+configure:11339: checking whether fputc_unlocked is declared
+configure:11363: gcc -c -g -O2 conftest.c >&5
+configure:11369: $? = 0
+configure:11372: test -z || test ! -s conftest.err
+configure:11375: $? = 0
+configure:11378: test -s conftest.o
+configure:11381: $? = 0
+configure:11392: result: yes
+configure:11412: checking whether fputs_unlocked is declared
+configure:11436: gcc -c -g -O2 conftest.c >&5
+configure:11442: $? = 0
+configure:11445: test -z || test ! -s conftest.err
+configure:11448: $? = 0
+configure:11451: test -s conftest.o
+configure:11454: $? = 0
+configure:11465: result: yes
+configure:11485: checking whether fread_unlocked is declared
+configure:11509: gcc -c -g -O2 conftest.c >&5
+configure:11515: $? = 0
+configure:11518: test -z || test ! -s conftest.err
+configure:11521: $? = 0
+configure:11524: test -s conftest.o
+configure:11527: $? = 0
+configure:11538: result: yes
+configure:11558: checking whether fwrite_unlocked is declared
+configure:11582: gcc -c -g -O2 conftest.c >&5
+configure:11588: $? = 0
+configure:11591: test -z || test ! -s conftest.err
+configure:11594: $? = 0
+configure:11597: test -s conftest.o
+configure:11600: $? = 0
+configure:11611: result: yes
+configure:11631: checking whether getc_unlocked is declared
+configure:11655: gcc -c -g -O2 conftest.c >&5
+configure:11661: $? = 0
+configure:11664: test -z || test ! -s conftest.err
+configure:11667: $? = 0
+configure:11670: test -s conftest.o
+configure:11673: $? = 0
+configure:11684: result: yes
+configure:11704: checking whether getchar_unlocked is declared
+configure:11728: gcc -c -g -O2 conftest.c >&5
+configure:11734: $? = 0
+configure:11737: test -z || test ! -s conftest.err
+configure:11740: $? = 0
+configure:11743: test -s conftest.o
+configure:11746: $? = 0
+configure:11757: result: yes
+configure:11777: checking whether putc_unlocked is declared
+configure:11801: gcc -c -g -O2 conftest.c >&5
+configure:11807: $? = 0
+configure:11810: test -z || test ! -s conftest.err
+configure:11813: $? = 0
+configure:11816: test -s conftest.o
+configure:11819: $? = 0
+configure:11830: result: yes
+configure:11850: checking whether putchar_unlocked is declared
+configure:11874: gcc -c -g -O2 conftest.c >&5
+configure:11880: $? = 0
+configure:11883: test -z || test ! -s conftest.err
+configure:11886: $? = 0
+configure:11889: test -s conftest.o
+configure:11892: $? = 0
+configure:11903: result: yes
+configure:11940: checking for error_at_line
+configure:11961: gcc -o conftest -g -O2 conftest.c >&5
+configure:11967: $? = 0
+configure:11970: test -z || test ! -s conftest.err
+configure:11973: $? = 0
+configure:11976: test -s conftest
+configure:11979: $? = 0
+configure:11991: result: yes
+configure:12085: checking for CFPreferencesCopyAppValue
+configure:12110: gcc -o conftest -g -O2 -I/System/Library/Frameworks/CoreFoundation.framework/Headers conftest.c -framework CoreFoundation >&5
+gcc: CoreFoundation: No such file or directory
+cc1: error: unrecognized command line option "-framework"
+configure:12116: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| #define HAVE_FORK 1
+| #define HAVE_VFORK 1
+| #define HAVE_WORKING_VFORK 1
+| #define HAVE_WORKING_FORK 1
+| #define HAVE_SYS_TIME_H 1
+| #define HAVE_SYS_TIMES_H 1
+| #define HAVE_SYS_RESOURCE_H 1
+| #define HAVE_TIMES 1
+| #define HAVE_DECL_GETRUSAGE 1
+| #define HAVE_DECL_TIMES 1
+| #define HAVE_DECL_CLOCK 0
+| #define HAVE_DECL_SYSCONF 1
+| #define HAVE_CLOCK_T 1
+| #define HAVE_STRUCT_TMS 1
+| #define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 0
+| #define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 0
+| #define HAVE_DECL_STRERROR_R 1
+| #define HAVE_STRERROR_R 1
+| #define STRERROR_R_CHAR_P 1
+| #define HAVE_GETOPT_H 1
+| #define HAVE_GETOPT_LONG_ONLY 1
+| #define HAVE_DECL_GETENV 1
+| #define HAVE_INTTYPES_H_WITH_UINTMAX 1
+| #define HAVE_STDINT_H_WITH_UINTMAX 1
+| #define HAVE_UNSIGNED_LONG_LONG 1
+| #define HAVE_UINTMAX_T 1
+| #define HAVE_DECL_STRDUP 1
+| #define HAVE_DECL_STRNDUP 1
+| #define HAVE_DECL_STRNLEN 1
+| #define HAVE_DECL_CLEARERR_UNLOCKED 1
+| #define HAVE_DECL_FEOF_UNLOCKED 1
+| #define HAVE_DECL_FERROR_UNLOCKED 1
+| #define HAVE_DECL_FFLUSH_UNLOCKED 1
+| #define HAVE_DECL_FGETS_UNLOCKED 1
+| #define HAVE_DECL_FPUTC_UNLOCKED 1
+| #define HAVE_DECL_FPUTS_UNLOCKED 1
+| #define HAVE_DECL_FREAD_UNLOCKED 1
+| #define HAVE_DECL_FWRITE_UNLOCKED 1
+| #define HAVE_DECL_GETC_UNLOCKED 1
+| #define HAVE_DECL_GETCHAR_UNLOCKED 1
+| #define HAVE_DECL_PUTC_UNLOCKED 1
+| #define HAVE_DECL_PUTCHAR_UNLOCKED 1
+| /* end confdefs.h. */
+| #include <CFPreferences.h>
+| int
+| main ()
+| {
+| CFPreferencesCopyAppValue(NULL, NULL)
+| ;
+| return 0;
+| }
+configure:12142: result: no
+configure:12151: checking for CFLocaleCopyCurrent
+configure:12176: gcc -o conftest -g -O2 -I/System/Library/Frameworks/CoreFoundation.framework/Headers conftest.c -framework CoreFoundation >&5
+gcc: CoreFoundation: No such file or directory
+cc1: error: unrecognized command line option "-framework"
+configure:12182: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| #define HAVE_FORK 1
+| #define HAVE_VFORK 1
+| #define HAVE_WORKING_VFORK 1
+| #define HAVE_WORKING_FORK 1
+| #define HAVE_SYS_TIME_H 1
+| #define HAVE_SYS_TIMES_H 1
+| #define HAVE_SYS_RESOURCE_H 1
+| #define HAVE_TIMES 1
+| #define HAVE_DECL_GETRUSAGE 1
+| #define HAVE_DECL_TIMES 1
+| #define HAVE_DECL_CLOCK 0
+| #define HAVE_DECL_SYSCONF 1
+| #define HAVE_CLOCK_T 1
+| #define HAVE_STRUCT_TMS 1
+| #define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 0
+| #define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 0
+| #define HAVE_DECL_STRERROR_R 1
+| #define HAVE_STRERROR_R 1
+| #define STRERROR_R_CHAR_P 1
+| #define HAVE_GETOPT_H 1
+| #define HAVE_GETOPT_LONG_ONLY 1
+| #define HAVE_DECL_GETENV 1
+| #define HAVE_INTTYPES_H_WITH_UINTMAX 1
+| #define HAVE_STDINT_H_WITH_UINTMAX 1
+| #define HAVE_UNSIGNED_LONG_LONG 1
+| #define HAVE_UINTMAX_T 1
+| #define HAVE_DECL_STRDUP 1
+| #define HAVE_DECL_STRNDUP 1
+| #define HAVE_DECL_STRNLEN 1
+| #define HAVE_DECL_CLEARERR_UNLOCKED 1
+| #define HAVE_DECL_FEOF_UNLOCKED 1
+| #define HAVE_DECL_FERROR_UNLOCKED 1
+| #define HAVE_DECL_FFLUSH_UNLOCKED 1
+| #define HAVE_DECL_FGETS_UNLOCKED 1
+| #define HAVE_DECL_FPUTC_UNLOCKED 1
+| #define HAVE_DECL_FPUTS_UNLOCKED 1
+| #define HAVE_DECL_FREAD_UNLOCKED 1
+| #define HAVE_DECL_FWRITE_UNLOCKED 1
+| #define HAVE_DECL_GETC_UNLOCKED 1
+| #define HAVE_DECL_GETCHAR_UNLOCKED 1
+| #define HAVE_DECL_PUTC_UNLOCKED 1
+| #define HAVE_DECL_PUTCHAR_UNLOCKED 1
+| /* end confdefs.h. */
+| #include <CFLocale.h>
+| int
+| main ()
+| {
+| CFLocaleCopyCurrent();
+| ;
+| return 0;
+| }
+configure:12208: result: no
+configure:12225: checking whether NLS is requested
+configure:12234: result: yes
+configure:12252: checking for GNU gettext in libc
+configure:12276: gcc -o conftest -g -O2 conftest.c >&5
+configure:12282: $? = 0
+configure:12285: test -z || test ! -s conftest.err
+configure:12288: $? = 0
+configure:12291: test -s conftest
+configure:12294: $? = 0
+configure:12306: result: yes
+configure:13010: checking whether to use NLS
+configure:13012: result: yes
+configure:13015: checking where the gettext function comes from
+configure:13026: result: libc
+configure:13122: checking for stdlib.h
+configure:13127: result: yes
+configure:13266: checking for GNU libc compatible malloc
+configure:13295: gcc -o conftest -g -O2 conftest.c >&5
+configure:13298: $? = 0
+configure:13300: ./conftest
+configure:13303: $? = 0
+configure:13317: result: yes
+configure:13377: checking for iswcntrl
+configure:13434: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c:111: warning: conflicting types for built-in function 'iswcntrl'
+configure:13440: $? = 0
+configure:13443: test -z || test ! -s conftest.err
+configure:13446: $? = 0
+configure:13449: test -s conftest
+configure:13452: $? = 0
+configure:13464: result: yes
+configure:13377: checking for wcwidth
+configure:13434: gcc -o conftest -g -O2 conftest.c >&5
+configure:13440: $? = 0
+configure:13443: test -z || test ! -s conftest.err
+configure:13446: $? = 0
+configure:13449: test -s conftest
+configure:13452: $? = 0
+configure:13464: result: yes
+configure:13475: checking whether mbrtowc and mbstate_t are properly declared
+configure:13500: gcc -o conftest -g -O2 conftest.c >&5
+configure:13506: $? = 0
+configure:13509: test -z || test ! -s conftest.err
+configure:13512: $? = 0
+configure:13515: test -s conftest
+configure:13518: $? = 0
+configure:13530: result: yes
+configure:13541: checking whether wcwidth is declared
+configure:13574: gcc -c -g -O2 conftest.c >&5
+configure:13580: $? = 0
+configure:13583: test -z || test ! -s conftest.err
+configure:13586: $? = 0
+configure:13589: test -s conftest.o
+configure:13592: $? = 0
+configure:13603: result: yes
+configure:13616: checking whether mbswidth is declared in <wchar.h>
+configure:13643: gcc -c -g -O2 conftest.c >&5
+conftest.c: In function 'main':
+conftest.c:100: error: 'mbswidth' undeclared (first use in this function)
+conftest.c:100: error: (Each undeclared identifier is reported only once
+conftest.c:100: error: for each function it appears in.)
+configure:13649: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| #define HAVE_FORK 1
+| #define HAVE_VFORK 1
+| #define HAVE_WORKING_VFORK 1
+| #define HAVE_WORKING_FORK 1
+| #define HAVE_SYS_TIME_H 1
+| #define HAVE_SYS_TIMES_H 1
+| #define HAVE_SYS_RESOURCE_H 1
+| #define HAVE_TIMES 1
+| #define HAVE_DECL_GETRUSAGE 1
+| #define HAVE_DECL_TIMES 1
+| #define HAVE_DECL_CLOCK 0
+| #define HAVE_DECL_SYSCONF 1
+| #define HAVE_CLOCK_T 1
+| #define HAVE_STRUCT_TMS 1
+| #define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 0
+| #define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 0
+| #define HAVE_DECL_STRERROR_R 1
+| #define HAVE_STRERROR_R 1
+| #define STRERROR_R_CHAR_P 1
+| #define HAVE_GETOPT_H 1
+| #define HAVE_GETOPT_LONG_ONLY 1
+| #define HAVE_DECL_GETENV 1
+| #define HAVE_INTTYPES_H_WITH_UINTMAX 1
+| #define HAVE_STDINT_H_WITH_UINTMAX 1
+| #define HAVE_UNSIGNED_LONG_LONG 1
+| #define HAVE_UINTMAX_T 1
+| #define HAVE_DECL_STRDUP 1
+| #define HAVE_DECL_STRNDUP 1
+| #define HAVE_DECL_STRNLEN 1
+| #define HAVE_DECL_CLEARERR_UNLOCKED 1
+| #define HAVE_DECL_FEOF_UNLOCKED 1
+| #define HAVE_DECL_FERROR_UNLOCKED 1
+| #define HAVE_DECL_FFLUSH_UNLOCKED 1
+| #define HAVE_DECL_FGETS_UNLOCKED 1
+| #define HAVE_DECL_FPUTC_UNLOCKED 1
+| #define HAVE_DECL_FPUTS_UNLOCKED 1
+| #define HAVE_DECL_FREAD_UNLOCKED 1
+| #define HAVE_DECL_FWRITE_UNLOCKED 1
+| #define HAVE_DECL_GETC_UNLOCKED 1
+| #define HAVE_DECL_GETCHAR_UNLOCKED 1
+| #define HAVE_DECL_PUTC_UNLOCKED 1
+| #define HAVE_DECL_PUTCHAR_UNLOCKED 1
+| #define ENABLE_NLS 1
+| #define HAVE_GETTEXT 1
+| #define HAVE_DCGETTEXT 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_MALLOC 1
+| #define HAVE_ISWCNTRL 1
+| #define HAVE_WCWIDTH 1
+| #define HAVE_MBRTOWC 1
+| #define HAVE_DECL_WCWIDTH 1
+| /* end confdefs.h. */
+|
+| #if HAVE_WCHAR_H
+| # include <wchar.h>
+| #endif
+|
+| int
+| main ()
+| {
+|
+| char *p = (char *) mbswidth;
+|
+| ;
+| return 0;
+| }
+configure:13672: result: no
+configure:13685: checking for mbstate_t
+configure:13707: gcc -c -g -O2 conftest.c >&5
+configure:13713: $? = 0
+configure:13716: test -z || test ! -s conftest.err
+configure:13719: $? = 0
+configure:13722: test -s conftest.o
+configure:13725: $? = 0
+configure:13736: result: yes
+configure:13754: checking for obstacks
+configure:13775: gcc -o conftest -g -O2 conftest.c >&5
+configure:13781: $? = 0
+configure:13784: test -z || test ! -s conftest.err
+configure:13787: $? = 0
+configure:13790: test -s conftest
+configure:13793: $? = 0
+configure:13805: result: yes
+configure:13878: checking for mbstate_t
+configure:13929: result: yes
+configure:13945: checking whether mbrtowc and mbstate_t are properly declared
+configure:14000: result: yes
+configure:14051: checking for stpcpy
+configure:14108: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c:120: warning: conflicting types for built-in function 'stpcpy'
+configure:14114: $? = 0
+configure:14117: test -z || test ! -s conftest.err
+configure:14120: $? = 0
+configure:14123: test -s conftest
+configure:14126: $? = 0
+configure:14138: result: yes
+configure:14172: checking for strdup
+configure:14229: gcc -o conftest -g -O2 conftest.c >&5
+conftest.c:121: warning: conflicting types for built-in function 'strdup'
+configure:14235: $? = 0
+configure:14238: test -z || test ! -s conftest.err
+configure:14241: $? = 0
+configure:14244: test -s conftest
+configure:14247: $? = 0
+configure:14259: result: yes
+configure:14294: checking for strerror
+configure:14351: gcc -o conftest -g -O2 conftest.c >&5
+configure:14357: $? = 0
+configure:14360: test -z || test ! -s conftest.err
+configure:14363: $? = 0
+configure:14366: test -s conftest
+configure:14369: $? = 0
+configure:14381: result: yes
+configure:14422: checking for working strndup
+configure:14474: gcc -o conftest -g -O2 conftest.c >&5
+configure:14477: $? = 0
+configure:14479: ./conftest
+configure:14482: $? = 0
+configure:14496: result: yes
+configure:14527: checking for working strnlen
+configure:14566: gcc -o conftest -g -O2 conftest.c >&5
+configure:14569: $? = 0
+configure:14571: ./conftest
+configure:14574: $? = 0
+configure:14588: result: yes
+configure:14626: checking for strtol
+configure:14683: gcc -o conftest -g -O2 conftest.c >&5
+configure:14689: $? = 0
+configure:14692: test -z || test ! -s conftest.err
+configure:14695: $? = 0
+configure:14698: test -s conftest
+configure:14701: $? = 0
+configure:14713: result: yes
+configure:14752: checking for strtoul
+configure:14809: gcc -o conftest -g -O2 conftest.c >&5
+configure:14815: $? = 0
+configure:14818: test -z || test ! -s conftest.err
+configure:14821: $? = 0
+configure:14824: test -s conftest
+configure:14827: $? = 0
+configure:14839: result: yes
+configure:14884: checking for strverscmp
+configure:14941: gcc -o conftest -g -O2 conftest.c >&5
+configure:14947: $? = 0
+configure:14950: test -z || test ! -s conftest.err
+configure:14953: $? = 0
+configure:14956: test -s conftest
+configure:14959: $? = 0
+configure:14971: result: yes
+configure:15004: checking for unistd.h
+configure:15009: result: yes
+configure:15386: checking for valgrind
+configure:15415: result: no
+configure:15474: checking for g++
+configure:15490: found /usr/bin/g++
+configure:15500: result: g++
+configure:15516: checking for C++ compiler version
+configure:15519: g++ --version </dev/null >&5
+g++ (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+Copyright (C) 2006 Free Software Foundation, Inc.
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+configure:15522: $? = 0
+configure:15524: g++ -v </dev/null >&5
+Using built-in specs.
+Target: i486-linux-gnu
+Configured with: ../src/configure -v --enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.0 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-awt=gtk-default --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr --disable-werror --with-tune=pentium4 --enable-checking=release i486-linux-gnu
+Thread model: posix
+gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
+configure:15527: $? = 0
+configure:15529: g++ -V </dev/null >&5
+g++: '-V' option must have argument
+configure:15532: $? = 1
+configure:15535: checking whether we are using the GNU C++ compiler
+configure:15559: g++ -c conftest.cc >&5
+configure:15565: $? = 0
+configure:15568: test -z || test ! -s conftest.err
+configure:15571: $? = 0
+configure:15574: test -s conftest.o
+configure:15577: $? = 0
+configure:15590: result: yes
+configure:15596: checking whether g++ accepts -g
+configure:15617: g++ -c -g conftest.cc >&5
+configure:15623: $? = 0
+configure:15626: test -z || test ! -s conftest.err
+configure:15629: $? = 0
+configure:15632: test -s conftest.o
+configure:15635: $? = 0
+configure:15646: result: yes
+configure:15688: g++ -c -g -O2 conftest.cc >&5
+configure:15694: $? = 0
+configure:15697: test -z || test ! -s conftest.err
+configure:15700: $? = 0
+configure:15703: test -s conftest.o
+configure:15706: $? = 0
+configure:15732: g++ -c -g -O2 conftest.cc >&5
+conftest.cc: In function 'int main()':
+conftest.cc:110: error: 'exit' was not declared in this scope
+configure:15738: $? = 1
+configure: failed program was:
+| /* confdefs.h. */
+|
+| #define PACKAGE_NAME "GNU Bison"
+| #define PACKAGE_TARNAME "bison"
+| #define PACKAGE_VERSION "2.3"
+| #define PACKAGE_STRING "GNU Bison 2.3"
+| #define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+| #define PACKAGE "bison"
+| #define VERSION "2.3"
+| #define _GNU_SOURCE 1
+| #define STDC_HEADERS 1
+| #define HAVE_SYS_TYPES_H 1
+| #define HAVE_SYS_STAT_H 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_STRING_H 1
+| #define HAVE_MEMORY_H 1
+| #define HAVE_STRINGS_H 1
+| #define HAVE_INTTYPES_H 1
+| #define HAVE_STDINT_H 1
+| #define HAVE_UNISTD_H 1
+| #define __EXTENSIONS__ 1
+| #define _POSIX_PTHREAD_SEMANTICS 1
+| #define YYTEXT_POINTER 1
+| #define M4 "/usr/bin/m4"
+| #define HAVE_LOCALE_H 1
+| #define HAVE_WCHAR_H 1
+| #define HAVE_WCTYPE_H 1
+| #define HAVE__BOOL 1
+| #define HAVE_STDBOOL_H 1
+| #define HAVE_UINTPTR_T 1
+| #define HAVE_SETLOCALE 1
+| #define HAVE_ISASCII 1
+| #define HAVE_ISWPRINT 1
+| #define HAVE_MBSINIT 1
+| #define HAVE_SYS_WAIT_H 1
+| #define HAVE_DUP2 1
+| #define HAVE_WAITPID 1
+| #define HAVE_UNISTD_H 1
+| #define HAVE_FORK 1
+| #define HAVE_VFORK 1
+| #define HAVE_WORKING_VFORK 1
+| #define HAVE_WORKING_FORK 1
+| #define HAVE_SYS_TIME_H 1
+| #define HAVE_SYS_TIMES_H 1
+| #define HAVE_SYS_RESOURCE_H 1
+| #define HAVE_TIMES 1
+| #define HAVE_DECL_GETRUSAGE 1
+| #define HAVE_DECL_TIMES 1
+| #define HAVE_DECL_CLOCK 0
+| #define HAVE_DECL_SYSCONF 1
+| #define HAVE_CLOCK_T 1
+| #define HAVE_STRUCT_TMS 1
+| #define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 0
+| #define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 0
+| #define HAVE_DECL_STRERROR_R 1
+| #define HAVE_STRERROR_R 1
+| #define STRERROR_R_CHAR_P 1
+| #define HAVE_GETOPT_H 1
+| #define HAVE_GETOPT_LONG_ONLY 1
+| #define HAVE_DECL_GETENV 1
+| #define HAVE_INTTYPES_H_WITH_UINTMAX 1
+| #define HAVE_STDINT_H_WITH_UINTMAX 1
+| #define HAVE_UNSIGNED_LONG_LONG 1
+| #define HAVE_UINTMAX_T 1
+| #define HAVE_DECL_STRDUP 1
+| #define HAVE_DECL_STRNDUP 1
+| #define HAVE_DECL_STRNLEN 1
+| #define HAVE_DECL_CLEARERR_UNLOCKED 1
+| #define HAVE_DECL_FEOF_UNLOCKED 1
+| #define HAVE_DECL_FERROR_UNLOCKED 1
+| #define HAVE_DECL_FFLUSH_UNLOCKED 1
+| #define HAVE_DECL_FGETS_UNLOCKED 1
+| #define HAVE_DECL_FPUTC_UNLOCKED 1
+| #define HAVE_DECL_FPUTS_UNLOCKED 1
+| #define HAVE_DECL_FREAD_UNLOCKED 1
+| #define HAVE_DECL_FWRITE_UNLOCKED 1
+| #define HAVE_DECL_GETC_UNLOCKED 1
+| #define HAVE_DECL_GETCHAR_UNLOCKED 1
+| #define HAVE_DECL_PUTC_UNLOCKED 1
+| #define HAVE_DECL_PUTCHAR_UNLOCKED 1
+| #define ENABLE_NLS 1
+| #define HAVE_GETTEXT 1
+| #define HAVE_DCGETTEXT 1
+| #define HAVE_STDLIB_H 1
+| #define HAVE_MALLOC 1
+| #define HAVE_ISWCNTRL 1
+| #define HAVE_WCWIDTH 1
+| #define HAVE_MBRTOWC 1
+| #define HAVE_DECL_WCWIDTH 1
+| #define HAVE_DECL_MBSWIDTH_IN_WCHAR_H 0
+| #define HAVE_MBSTATE_T 1
+| #define HAVE_OBSTACK 1
+| #define HAVE_MBSTATE_T 1
+| #define HAVE_MBRTOWC 1
+| #define HAVE_STPCPY 1
+| #define HAVE_STRDUP 1
+| #define HAVE_STRERROR 1
+| #define HAVE_STRNDUP 1
+| #define HAVE_STRTOL 1
+| #define HAVE_STRTOUL 1
+| #define HAVE_STRVERSCMP 1
+| #define HAVE_UNISTD_H 1
+| #define USE_UNLOCKED_IO 1
+| #define YYENABLE_NLS 1
+| /* end confdefs.h. */
+|
+| int
+| main ()
+| {
+| exit (42);
+| ;
+| return 0;
+| }
+configure:15688: g++ -c -g -O2 conftest.cc >&5
+configure:15694: $? = 0
+configure:15697: test -z || test ! -s conftest.err
+configure:15700: $? = 0
+configure:15703: test -s conftest.o
+configure:15706: $? = 0
+configure:15732: g++ -c -g -O2 conftest.cc >&5
+configure:15738: $? = 0
+configure:15741: test -z || test ! -s conftest.err
+configure:15744: $? = 0
+configure:15747: test -s conftest.o
+configure:15750: $? = 0
+configure:15775: checking dependency style of g++
+configure:15865: result: gcc3
+configure:15884: checking whether g++ builds executables that work
+configure:15924: g++ -c -g -O2 conftest.cc >&5
+configure:15930: $? = 0
+configure:15933: test -z || test ! -s conftest.err
+configure:15936: $? = 0
+configure:15939: test -s conftest.o
+configure:15942: $? = 0
+configure:15945: g++ -o conftest -g -O2 conftest.o >&5
+configure:15948: $? = 0
+configure:15954: ./conftest
+configure:15957: $? = 0
+configure:15980: result: yes
+configure:16151: creating ./config.status
+
+## ---------------------- ##
+## Running config.status. ##
+## ---------------------- ##
+
+This file was extended by GNU Bison config.status 2.3, which was
+generated by GNU Autoconf 2.59. Invocation command line was
+
+ CONFIG_FILES =
+ CONFIG_HEADERS =
+ CONFIG_LINKS =
+ CONFIG_COMMANDS =
+ $ ./config.status
+
+on phanna.cnc.corp.google.com
+
+config.status:802: creating runtime-po/Makefile.in
+config.status:802: creating tests/Makefile
+config.status:802: creating tests/atlocal
+config.status:802: creating tests/bison
+config.status:802: creating Makefile
+config.status:802: creating build-aux/Makefile
+config.status:802: creating po/Makefile.in
+config.status:802: creating data/Makefile
+config.status:802: creating examples/Makefile
+config.status:802: creating examples/calc++/Makefile
+config.status:802: creating lib/Makefile
+config.status:802: creating src/Makefile
+config.status:802: creating doc/Makefile
+config.status:872: creating config.h
+config.status:1364: executing depfiles commands
+config.status:1364: executing default-1 commands
+config.status:1364: executing tests/atconfig commands
+
+## ---------------- ##
+## Cache variables. ##
+## ---------------- ##
+
+ac_cv_build=x86_64-unknown-linux-gnu
+ac_cv_build_alias=x86_64-unknown-linux-gnu
+ac_cv_c_compiler_gnu=yes
+ac_cv_c_inline=inline
+ac_cv_cxx_compiler_gnu=yes
+ac_cv_env_CC_set=
+ac_cv_env_CC_value=
+ac_cv_env_CFLAGS_set=
+ac_cv_env_CFLAGS_value=
+ac_cv_env_CPPFLAGS_set=
+ac_cv_env_CPPFLAGS_value=
+ac_cv_env_CPP_set=
+ac_cv_env_CPP_value=
+ac_cv_env_CXXFLAGS_set=
+ac_cv_env_CXXFLAGS_value=
+ac_cv_env_CXX_set=
+ac_cv_env_CXX_value=
+ac_cv_env_LDFLAGS_set=
+ac_cv_env_LDFLAGS_value=
+ac_cv_env_build_alias_set=
+ac_cv_env_build_alias_value=
+ac_cv_env_host_alias_set=
+ac_cv_env_host_alias_value=
+ac_cv_env_target_alias_set=
+ac_cv_env_target_alias_value=
+ac_cv_exeext=
+ac_cv_func_dup2=yes
+ac_cv_func_fork=yes
+ac_cv_func_fork_works=yes
+ac_cv_func_getopt_long_only=yes
+ac_cv_func_isascii=yes
+ac_cv_func_iswcntrl=yes
+ac_cv_func_iswprint=yes
+ac_cv_func_malloc_0_nonnull=yes
+ac_cv_func_mbsinit=yes
+ac_cv_func_obstack=yes
+ac_cv_func_setlocale=yes
+ac_cv_func_stpcpy=yes
+ac_cv_func_strdup=yes
+ac_cv_func_strerror=yes
+ac_cv_func_strerror_r=yes
+ac_cv_func_strerror_r_char_p=yes
+ac_cv_func_strnlen_working=yes
+ac_cv_func_strtol=yes
+ac_cv_func_strtoul=yes
+ac_cv_func_strverscmp=yes
+ac_cv_func_times=yes
+ac_cv_func_vfork=yes
+ac_cv_func_vfork_works=yes
+ac_cv_func_waitpid=yes
+ac_cv_func_wcwidth=yes
+ac_cv_have_decl_clearerr_unlocked=yes
+ac_cv_have_decl_clock=no
+ac_cv_have_decl_feof_unlocked=yes
+ac_cv_have_decl_ferror_unlocked=yes
+ac_cv_have_decl_fflush_unlocked=yes
+ac_cv_have_decl_fgets_unlocked=yes
+ac_cv_have_decl_fputc_unlocked=yes
+ac_cv_have_decl_fputs_unlocked=yes
+ac_cv_have_decl_fread_unlocked=yes
+ac_cv_have_decl_fwrite_unlocked=yes
+ac_cv_have_decl_getc_unlocked=yes
+ac_cv_have_decl_getchar_unlocked=yes
+ac_cv_have_decl_getenv=yes
+ac_cv_have_decl_getrusage=yes
+ac_cv_have_decl_mbswidth=no
+ac_cv_have_decl_optreset=no
+ac_cv_have_decl_putc_unlocked=yes
+ac_cv_have_decl_putchar_unlocked=yes
+ac_cv_have_decl_strdup=yes
+ac_cv_have_decl_strerror_r=yes
+ac_cv_have_decl_strndup=yes
+ac_cv_have_decl_strnlen=yes
+ac_cv_have_decl_sysconf=yes
+ac_cv_have_decl_times=yes
+ac_cv_have_decl_wcwidth=yes
+ac_cv_header_getopt_h=yes
+ac_cv_header_inttypes_h=yes
+ac_cv_header_locale_h=yes
+ac_cv_header_memory_h=yes
+ac_cv_header_minix_config_h=no
+ac_cv_header_stdbool_h=yes
+ac_cv_header_stdc=yes
+ac_cv_header_stdint_h=yes
+ac_cv_header_stdlib_h=yes
+ac_cv_header_string_h=yes
+ac_cv_header_strings_h=yes
+ac_cv_header_sys_resource_h=yes
+ac_cv_header_sys_stat_h=yes
+ac_cv_header_sys_time_h=yes
+ac_cv_header_sys_times_h=yes
+ac_cv_header_sys_types_h=yes
+ac_cv_header_sys_wait_h=yes
+ac_cv_header_unistd_h=yes
+ac_cv_header_vfork_h=no
+ac_cv_header_wchar_h=yes
+ac_cv_header_wctype_h=yes
+ac_cv_host=x86_64-unknown-linux-gnu
+ac_cv_host_alias=x86_64-unknown-linux-gnu
+ac_cv_lib_error_at_line=yes
+ac_cv_lib_fl_yywrap=yes
+ac_cv_objext=o
+ac_cv_path_GMSGFMT=/usr/bin/msgfmt
+ac_cv_path_M4=/usr/bin/m4
+ac_cv_path_MSGFMT=/usr/bin/msgfmt
+ac_cv_path_MSGMERGE=/usr/bin/msgmerge
+ac_cv_path_XGETTEXT=/usr/bin/xgettext
+ac_cv_path_install='/usr/bin/install -c'
+ac_cv_prog_AWK=gawk
+ac_cv_prog_CPP='gcc -E'
+ac_cv_prog_LEX=flex
+ac_cv_prog_YACC='bison -y'
+ac_cv_prog_ac_ct_CC=gcc
+ac_cv_prog_ac_ct_CXX=g++
+ac_cv_prog_ac_ct_RANLIB=ranlib
+ac_cv_prog_cc_g=yes
+ac_cv_prog_cc_stdc=
+ac_cv_prog_cxx_g=yes
+ac_cv_prog_egrep='grep -E'
+ac_cv_prog_gnu_m4=yes
+ac_cv_prog_lex_root=lex.yy
+ac_cv_prog_lex_yytext_pointer=yes
+ac_cv_prog_make_make_set=yes
+ac_cv_safe_to_define___extensions__=yes
+ac_cv_type__Bool=yes
+ac_cv_type_clock_t=yes
+ac_cv_type_mbstate_t=yes
+ac_cv_type_pid_t=yes
+ac_cv_type_struct_tms=yes
+ac_cv_type_uintptr_t=yes
+ac_cv_type_unsigned_long_long=yes
+ac_cv_win_or_dos=no
+acl_cv_hardcode_direct=no
+acl_cv_hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+acl_cv_hardcode_libdir_separator=
+acl_cv_hardcode_minus_L=no
+acl_cv_libext=a
+acl_cv_path_LD=/usr/bin/ld
+acl_cv_prog_gnu_ld=yes
+acl_cv_rpath=done
+acl_cv_shlibext=so
+acl_cv_wl=-Wl,
+am_cv_CC_dependencies_compiler_type=gcc3
+am_cv_CXX_dependencies_compiler_type=gcc3
+am_cv_prog_cc_stdc=
+bison_cv_cxx_works=yes
+gl_cv_func_gnu_getopt=yes
+gl_cv_func_mbrtowc=yes
+gl_cv_func_strndup=yes
+gl_cv_header_inttypes_h=yes
+gl_cv_header_stdint_h=yes
+gt_cv_func_CFLocaleCopyCurrent=no
+gt_cv_func_CFPreferencesCopyAppValue=no
+gt_cv_func_gnugettext1_libc=yes
+
+## ----------------- ##
+## Output variables. ##
+## ----------------- ##
+
+ACLOCAL='${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run aclocal-1.9'
+AMDEPBACKSLASH='\'
+AMDEP_FALSE='#'
+AMDEP_TRUE=''
+AMTAR='${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run tar'
+AUTOCONF='${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoconf'
+AUTOHEADER='${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoheader'
+AUTOM4TE='${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autom4te'
+AUTOMAKE='${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run automake-1.9'
+AWK='gawk'
+BISON_CXX_WORKS=':'
+BISON_CXX_WORKS_FALSE='#'
+BISON_CXX_WORKS_TRUE=''
+BISON_LOCALEDIR='/usr/share/locale'
+CC='gcc'
+CCDEPMODE='depmode=gcc3'
+CFLAGS='-g -O2'
+CPP='gcc -E'
+CPPFLAGS=''
+CXX='g++'
+CXXDEPMODE='depmode=gcc3'
+CXXFLAGS='-g -O2'
+CYGPATH_W='echo'
+DEFS='-DHAVE_CONFIG_H'
+DEPDIR='.deps'
+ECHO_C=''
+ECHO_N='-n'
+ECHO_T=''
+EGREP='grep -E'
+EXEEXT=''
+GCC='yes'
+GETOPT_H=''
+GMSGFMT='/usr/bin/msgfmt'
+HAVE__BOOL='1'
+INSTALL_DATA='${INSTALL} -m 644'
+INSTALL_PROGRAM='${INSTALL}'
+INSTALL_SCRIPT='${INSTALL}'
+INSTALL_STRIP_PROGRAM='${SHELL} $(install_sh) -c -s'
+INTLLIBS=''
+INTL_MACOSX_LIBS=''
+LDFLAGS=''
+LEX='flex'
+LEXLIB='-lfl'
+LEX_OUTPUT_ROOT='lex.yy'
+LIBICONV='-liconv'
+LIBINTL=''
+LIBOBJS=' dirname$U.o exitfail$U.o hard-locale$U.o hash$U.o quote$U.o quotearg$U.o fopen-safer$U.o dup-safer$U.o fd-safer$U.o pipe-safer$U.o xmalloc$U.o'
+LIBS=''
+LTLIBICONV='-liconv'
+LTLIBINTL=''
+LTLIBOBJS=' dirname$U.lo exitfail$U.lo hard-locale$U.lo hash$U.lo quote$U.lo quotearg$U.lo fopen-safer$U.lo dup-safer$U.lo fd-safer$U.lo pipe-safer$U.lo xmalloc$U.lo'
+M4='/usr/bin/m4'
+MAKEINFO='${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run makeinfo'
+MKINSTALLDIRS='$(top_builddir)/build-aux/mkinstalldirs'
+MSGFMT='/usr/bin/msgfmt'
+MSGMERGE='/usr/bin/msgmerge'
+O0CFLAGS='-g '
+O0CXXFLAGS='-g '
+OBJEXT='o'
+PACKAGE='bison'
+PACKAGE_BUGREPORT='bug-bison@gnu.org'
+PACKAGE_NAME='GNU Bison'
+PACKAGE_STRING='GNU Bison 2.3'
+PACKAGE_TARNAME='bison'
+PACKAGE_VERSION='2.3'
+PATH_SEPARATOR=':'
+POSUB='po'
+RANLIB='ranlib'
+SET_MAKE=''
+SHELL='/bin/sh'
+STDBOOL_H=''
+STRIP=''
+UNISTD_H=''
+USE_NLS='yes'
+VALGRIND=''
+VERSION='2.3'
+WARNING_CFLAGS=''
+WARNING_CXXFLAGS=''
+WERROR_CFLAGS=''
+XGETTEXT='/usr/bin/xgettext'
+YACC='bison -y'
+YACC_LIBRARY='liby.a'
+YACC_SCRIPT='yacc'
+ac_ct_CC='gcc'
+ac_ct_CXX='g++'
+ac_ct_RANLIB='ranlib'
+ac_ct_STRIP=''
+aclocaldir='${datadir}/aclocal'
+am__fastdepCC_FALSE='#'
+am__fastdepCC_TRUE=''
+am__fastdepCXX_FALSE='#'
+am__fastdepCXX_TRUE=''
+am__include='include'
+am__leading_dot='.'
+am__quote=''
+am__tar='${AMTAR} chof - "$$tardir"'
+am__untar='${AMTAR} xf -'
+bindir='${exec_prefix}/bin'
+build='x86_64-unknown-linux-gnu'
+build_alias=''
+build_cpu='x86_64'
+build_os='linux-gnu'
+build_vendor='unknown'
+datadir='${prefix}/share'
+exec_prefix='${prefix}'
+host='x86_64-unknown-linux-gnu'
+host_alias=''
+host_cpu='x86_64'
+host_os='linux-gnu'
+host_vendor='unknown'
+includedir='${prefix}/include'
+infodir='${prefix}/info'
+install_sh='/usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/install-sh'
+libdir='${exec_prefix}/lib'
+libexecdir='${exec_prefix}/libexec'
+localstatedir='${prefix}/var'
+mandir='${prefix}/man'
+mkdir_p='mkdir -p --'
+oldincludedir='/usr/include'
+prefix='/home/phanna/src/bison'
+program_transform_name='s,x,x,'
+sbindir='${exec_prefix}/sbin'
+sharedstatedir='${prefix}/com'
+sysconfdir='${prefix}/etc'
+target_alias=''
+
+## ----------- ##
+## confdefs.h. ##
+## ----------- ##
+
+#define ENABLE_NLS 1
+#define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX 0
+#define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR 0
+#define HAVE_CLOCK_T 1
+#define HAVE_DCGETTEXT 1
+#define HAVE_DECL_CLEARERR_UNLOCKED 1
+#define HAVE_DECL_CLOCK 0
+#define HAVE_DECL_FEOF_UNLOCKED 1
+#define HAVE_DECL_FERROR_UNLOCKED 1
+#define HAVE_DECL_FFLUSH_UNLOCKED 1
+#define HAVE_DECL_FGETS_UNLOCKED 1
+#define HAVE_DECL_FPUTC_UNLOCKED 1
+#define HAVE_DECL_FPUTS_UNLOCKED 1
+#define HAVE_DECL_FREAD_UNLOCKED 1
+#define HAVE_DECL_FWRITE_UNLOCKED 1
+#define HAVE_DECL_GETCHAR_UNLOCKED 1
+#define HAVE_DECL_GETC_UNLOCKED 1
+#define HAVE_DECL_GETENV 1
+#define HAVE_DECL_GETRUSAGE 1
+#define HAVE_DECL_MBSWIDTH_IN_WCHAR_H 0
+#define HAVE_DECL_PUTCHAR_UNLOCKED 1
+#define HAVE_DECL_PUTC_UNLOCKED 1
+#define HAVE_DECL_STRDUP 1
+#define HAVE_DECL_STRERROR_R 1
+#define HAVE_DECL_STRNDUP 1
+#define HAVE_DECL_STRNLEN 1
+#define HAVE_DECL_SYSCONF 1
+#define HAVE_DECL_TIMES 1
+#define HAVE_DECL_WCWIDTH 1
+#define HAVE_DUP2 1
+#define HAVE_FORK 1
+#define HAVE_GETOPT_H 1
+#define HAVE_GETOPT_LONG_ONLY 1
+#define HAVE_GETTEXT 1
+#define HAVE_INTTYPES_H 1
+#define HAVE_INTTYPES_H_WITH_UINTMAX 1
+#define HAVE_ISASCII 1
+#define HAVE_ISWCNTRL 1
+#define HAVE_ISWPRINT 1
+#define HAVE_LOCALE_H 1
+#define HAVE_MALLOC 1
+#define HAVE_MBRTOWC 1
+#define HAVE_MBRTOWC 1
+#define HAVE_MBSINIT 1
+#define HAVE_MBSTATE_T 1
+#define HAVE_MBSTATE_T 1
+#define HAVE_MEMORY_H 1
+#define HAVE_OBSTACK 1
+#define HAVE_SETLOCALE 1
+#define HAVE_STDBOOL_H 1
+#define HAVE_STDINT_H 1
+#define HAVE_STDINT_H_WITH_UINTMAX 1
+#define HAVE_STDLIB_H 1
+#define HAVE_STDLIB_H 1
+#define HAVE_STPCPY 1
+#define HAVE_STRDUP 1
+#define HAVE_STRERROR 1
+#define HAVE_STRERROR_R 1
+#define HAVE_STRINGS_H 1
+#define HAVE_STRING_H 1
+#define HAVE_STRNDUP 1
+#define HAVE_STRTOL 1
+#define HAVE_STRTOUL 1
+#define HAVE_STRUCT_TMS 1
+#define HAVE_STRVERSCMP 1
+#define HAVE_SYS_RESOURCE_H 1
+#define HAVE_SYS_STAT_H 1
+#define HAVE_SYS_TIMES_H 1
+#define HAVE_SYS_TIME_H 1
+#define HAVE_SYS_TYPES_H 1
+#define HAVE_SYS_WAIT_H 1
+#define HAVE_TIMES 1
+#define HAVE_UINTMAX_T 1
+#define HAVE_UINTPTR_T 1
+#define HAVE_UNISTD_H 1
+#define HAVE_UNISTD_H 1
+#define HAVE_UNISTD_H 1
+#define HAVE_UNSIGNED_LONG_LONG 1
+#define HAVE_VFORK 1
+#define HAVE_WAITPID 1
+#define HAVE_WCHAR_H 1
+#define HAVE_WCTYPE_H 1
+#define HAVE_WCWIDTH 1
+#define HAVE_WORKING_FORK 1
+#define HAVE_WORKING_VFORK 1
+#define HAVE__BOOL 1
+#define M4 "/usr/bin/m4"
+#define PACKAGE "bison"
+#define PACKAGE_BUGREPORT "bug-bison@gnu.org"
+#define PACKAGE_NAME "GNU Bison"
+#define PACKAGE_STRING "GNU Bison 2.3"
+#define PACKAGE_TARNAME "bison"
+#define PACKAGE_VERSION "2.3"
+#define STDC_HEADERS 1
+#define STRERROR_R_CHAR_P 1
+#define USE_UNLOCKED_IO 1
+#define VERSION "2.3"
+#define YYENABLE_NLS 1
+#define YYTEXT_POINTER 1
+#define _GNU_SOURCE 1
+#define _POSIX_PTHREAD_SEMANTICS 1
+#define __EXTENSIONS__ 1
+#endif
+#ifdef __cplusplus
+extern "C" void std::exit (int) throw (); using std::exit;
+
+configure: exit 0
diff --git a/config.status b/config.status
new file mode 100755
index 0000000..0c4904a
--- /dev/null
+++ b/config.status
@@ -0,0 +1,1587 @@
+#! /bin/sh
+# Generated by configure.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+SHELL=${CONFIG_SHELL-/bin/sh}
+## --------------------- ##
+## M4sh Initialization. ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+ # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '${1+"$@"}'='"$@"'
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+ set -o posix
+fi
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# Support unset when possible.
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+ as_unset=unset
+else
+ as_unset=false
+fi
+
+
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+ LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+ LC_TELEPHONE LC_TIME
+do
+ if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+ eval $as_var=C; export $as_var
+ else
+ $as_unset $as_var
+ fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)$' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+ /^X\/\(\/\/\)$/{ s//\1/; q; }
+ /^X\/\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" || {
+ # Find who we are. Look in the path if we contain no path at all
+ # relative or not.
+ case $0 in
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+ ;;
+ esac
+ # We did not find ourselves, most probably we were run as `sh COMMAND'
+ # in which case we are not to be found in the path.
+ if test "x$as_myself" = x; then
+ as_myself=$0
+ fi
+ if test ! -f "$as_myself"; then
+ { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
+echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+ case $CONFIG_SHELL in
+ '')
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for as_base in sh bash ksh sh5; do
+ case $as_dir in
+ /*)
+ if ("$as_dir/$as_base" -c '
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
+ $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
+ $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
+ CONFIG_SHELL=$as_dir/$as_base
+ export CONFIG_SHELL
+ exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+ fi;;
+ esac
+ done
+done
+;;
+ esac
+
+ # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+ # uniformly replaced by the line number. The first 'sed' inserts a
+ # line-number line before each line; the second 'sed' does the real
+ # work. The second script uses 'N' to pair each line-number line
+ # with the numbered line, and appends trailing '-' during
+ # substitution so that $LINENO is not a special case at line end.
+ # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+ # second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
+ sed '=' <$as_myself |
+ sed '
+ N
+ s,$,-,
+ : loop
+ s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+ t loop
+ s,-$,,
+ s,^['$as_cr_digits']*\n,,
+ ' >$as_me.lineno &&
+ chmod +x $as_me.lineno ||
+ { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
+echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
+ { (exit 1); exit 1; }; }
+
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensible to this).
+ . ./$as_me.lineno
+ # Exit status is that of the last command.
+ exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+ *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T=' ' ;;
+ *c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+ *) ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+ # We could just check for DJGPP; but this test a) works b) is more generic
+ # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+ if test -f conf$$.exe; then
+ # Don't use ln at all; we don't have any links
+ as_ln_s='cp -p'
+ else
+ as_ln_s='ln -s'
+ fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+else
+ as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+if mkdir -p . 2>/dev/null; then
+ as_mkdir_p=:
+else
+ test -d ./-p && rmdir ./-p
+ as_mkdir_p=false
+fi
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS=" $as_nl"
+
+# CDPATH.
+$as_unset CDPATH
+
+exec 6>&1
+
+# Open the log real soon, to keep \$[0] and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling. Logging --version etc. is OK.
+exec 5>>config.log
+{
+ echo
+ sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+} >&5
+cat >&5 <<_CSEOF
+
+This file was extended by GNU Bison $as_me 2.3, which was
+generated by GNU Autoconf 2.59. Invocation command line was
+
+ CONFIG_FILES = $CONFIG_FILES
+ CONFIG_HEADERS = $CONFIG_HEADERS
+ CONFIG_LINKS = $CONFIG_LINKS
+ CONFIG_COMMANDS = $CONFIG_COMMANDS
+ $ $0 $@
+
+_CSEOF
+echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
+echo >&5
+config_files=" runtime-po/Makefile.in tests/Makefile tests/atlocal tests/bison Makefile build-aux/Makefile po/Makefile.in data/Makefile examples/Makefile examples/calc++/Makefile lib/Makefile src/Makefile doc/Makefile"
+config_headers=" config.h:config.hin"
+config_commands=" depfiles default-1 tests/atconfig"
+
+ac_cs_usage="\
+\`$as_me' instantiates files from templates according to the
+current configuration.
+
+Usage: $0 [OPTIONS] [FILE]...
+
+ -h, --help print this help, then exit
+ -V, --version print version number, then exit
+ -q, --quiet do not print progress messages
+ -d, --debug don't remove temporary files
+ --recheck update $as_me by reconfiguring in the same conditions
+ --file=FILE[:TEMPLATE]
+ instantiate the configuration file FILE
+ --header=FILE[:TEMPLATE]
+ instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to <bug-autoconf@gnu.org>."
+ac_cs_version="\
+GNU Bison config.status 2.3
+configured by ./configure, generated by GNU Autoconf 2.59,
+ with options \"'--prefix' '/home/phanna/src/bison'\"
+
+Copyright (C) 2003 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+srcdir=.
+INSTALL="/usr/bin/install -c"
+# If no file are specified by the user, then we need to provide default
+# value. By we need to know if files were specified by the user.
+ac_need_defaults=:
+while test $# != 0
+do
+ case $1 in
+ --*=*)
+ ac_option=`expr "x$1" : 'x\([^=]*\)='`
+ ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
+ ac_shift=:
+ ;;
+ -*)
+ ac_option=$1
+ ac_optarg=$2
+ ac_shift=shift
+ ;;
+ *) # This is not an option, so the user has probably given explicit
+ # arguments.
+ ac_option=$1
+ ac_need_defaults=false;;
+ esac
+
+ case $ac_option in
+ # Handling of the options.
+ -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+ ac_cs_recheck=: ;;
+ --version | --vers* | -V )
+ echo "$ac_cs_version"; exit 0 ;;
+ --he | --h)
+ # Conflict between --help and --header
+ { { echo "$as_me:$LINENO: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&2;}
+ { (exit 1); exit 1; }; };;
+ --help | --hel | -h )
+ echo "$ac_cs_usage"; exit 0 ;;
+ --debug | --d* | -d )
+ debug=: ;;
+ --file | --fil | --fi | --f )
+ $ac_shift
+ CONFIG_FILES="$CONFIG_FILES $ac_optarg"
+ ac_need_defaults=false;;
+ --header | --heade | --head | --hea )
+ $ac_shift
+ CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
+ ac_need_defaults=false;;
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil | --si | --s)
+ ac_cs_silent=: ;;
+
+ # This is an error.
+ -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&2;}
+ { (exit 1); exit 1; }; } ;;
+
+ *) ac_config_targets="$ac_config_targets $1" ;;
+
+ esac
+ shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+ exec 6>/dev/null
+ ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+if $ac_cs_recheck; then
+ echo "running /bin/sh ./configure " '--prefix' '/home/phanna/src/bison' $ac_configure_extra_args " --no-create --no-recursion" >&6
+ exec /bin/sh ./configure '--prefix' '/home/phanna/src/bison' $ac_configure_extra_args --no-create --no-recursion
+fi
+
+#
+# INIT-COMMANDS section.
+#
+
+AMDEP_TRUE="" ac_aux_dir="build-aux"
+# Capture the value of obsolete ALL_LINGUAS because we need it to compute
+ # POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES, CATALOGS. But hide it
+ # from automake.
+ eval 'OBSOLETE_ALL_LINGUAS''=""'
+ # Capture the value of LINGUAS because we need it to compute CATALOGS.
+ LINGUAS="%UNSET%"
+
+
+for ac_config_target in $ac_config_targets
+do
+ case "$ac_config_target" in
+ # Handling of arguments.
+ "runtime-po/Makefile.in" ) CONFIG_FILES="$CONFIG_FILES runtime-po/Makefile.in" ;;
+ "tests/Makefile" ) CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;;
+ "tests/atlocal" ) CONFIG_FILES="$CONFIG_FILES tests/atlocal" ;;
+ "tests/bison" ) CONFIG_FILES="$CONFIG_FILES tests/bison" ;;
+ "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+ "build-aux/Makefile" ) CONFIG_FILES="$CONFIG_FILES build-aux/Makefile" ;;
+ "po/Makefile.in" ) CONFIG_FILES="$CONFIG_FILES po/Makefile.in" ;;
+ "data/Makefile" ) CONFIG_FILES="$CONFIG_FILES data/Makefile" ;;
+ "examples/Makefile" ) CONFIG_FILES="$CONFIG_FILES examples/Makefile" ;;
+ "examples/calc++/Makefile" ) CONFIG_FILES="$CONFIG_FILES examples/calc++/Makefile" ;;
+ "lib/Makefile" ) CONFIG_FILES="$CONFIG_FILES lib/Makefile" ;;
+ "src/Makefile" ) CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+ "doc/Makefile" ) CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
+ "depfiles" ) CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+ "default-1" ) CONFIG_COMMANDS="$CONFIG_COMMANDS default-1" ;;
+ "tests/atconfig" ) CONFIG_COMMANDS="$CONFIG_COMMANDS tests/atconfig" ;;
+ "config.h" ) CONFIG_HEADERS="$CONFIG_HEADERS config.h:config.hin" ;;
+ *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
+echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
+ { (exit 1); exit 1; }; };;
+ esac
+done
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used. Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+ test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+ test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+ test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience. Make it in the build tree
+# simply because there is no reason to put it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Create a temporary directory, and hook for its removal unless debugging.
+$debug ||
+{
+ trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
+ trap '{ (exit 1); exit 1; }' 1 2 13 15
+}
+
+# Create a (secure) tmp directory for tmp files.
+
+{
+ tmp=`(umask 077 && mktemp -d -q "./confstatXXXXXX") 2>/dev/null` &&
+ test -n "$tmp" && test -d "$tmp"
+} ||
+{
+ tmp=./confstat$$-$RANDOM
+ (umask 077 && mkdir $tmp)
+} ||
+{
+ echo "$me: cannot create a temporary directory in ." >&2
+ { (exit 1); exit 1; }
+}
+
+
+#
+# CONFIG_FILES section.
+#
+
+# No need to generate the scripts if there are no CONFIG_FILES.
+# This happens for instance when ./config.status config.h
+if test -n "$CONFIG_FILES"; then
+ # Protect against being on the right side of a sed subst in config.status.
+ sed 's/,@/@@/; s/@,/@@/; s/,;t t$/@;t t/; /@;t t$/s/[\\&,]/\\&/g;
+ s/@@/,@/; s/@@/@,/; s/@;t t$/,;t t/' >$tmp/subs.sed <<\CEOF
+s,@SHELL@,/bin/sh,;t t
+s,@PATH_SEPARATOR@,:,;t t
+s,@PACKAGE_NAME@,GNU Bison,;t t
+s,@PACKAGE_TARNAME@,bison,;t t
+s,@PACKAGE_VERSION@,2.3,;t t
+s,@PACKAGE_STRING@,GNU Bison 2.3,;t t
+s,@PACKAGE_BUGREPORT@,bug-bison@gnu.org,;t t
+s,@exec_prefix@,${prefix},;t t
+s,@prefix@,/home/phanna/src/bison,;t t
+s,@program_transform_name@,s,x,x,,;t t
+s,@bindir@,${exec_prefix}/bin,;t t
+s,@sbindir@,${exec_prefix}/sbin,;t t
+s,@libexecdir@,${exec_prefix}/libexec,;t t
+s,@datadir@,${prefix}/share,;t t
+s,@sysconfdir@,${prefix}/etc,;t t
+s,@sharedstatedir@,${prefix}/com,;t t
+s,@localstatedir@,${prefix}/var,;t t
+s,@libdir@,${exec_prefix}/lib,;t t
+s,@includedir@,${prefix}/include,;t t
+s,@oldincludedir@,/usr/include,;t t
+s,@infodir@,${prefix}/info,;t t
+s,@mandir@,${prefix}/man,;t t
+s,@build_alias@,,;t t
+s,@host_alias@,,;t t
+s,@target_alias@,,;t t
+s,@DEFS@,-DHAVE_CONFIG_H,;t t
+s,@ECHO_C@,,;t t
+s,@ECHO_N@,-n,;t t
+s,@ECHO_T@,,;t t
+s,@LIBS@,,;t t
+s,@INSTALL_PROGRAM@,${INSTALL},;t t
+s,@INSTALL_SCRIPT@,${INSTALL},;t t
+s,@INSTALL_DATA@,${INSTALL} -m 644,;t t
+s,@CYGPATH_W@,echo,;t t
+s,@PACKAGE@,bison,;t t
+s,@VERSION@,2.3,;t t
+s,@ACLOCAL@,${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run aclocal-1.9,;t t
+s,@AUTOCONF@,${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoconf,;t t
+s,@AUTOMAKE@,${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run automake-1.9,;t t
+s,@AUTOHEADER@,${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoheader,;t t
+s,@MAKEINFO@,${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run makeinfo,;t t
+s,@install_sh@,/usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/install-sh,;t t
+s,@STRIP@,,;t t
+s,@ac_ct_STRIP@,,;t t
+s,@INSTALL_STRIP_PROGRAM@,${SHELL} $(install_sh) -c -s,;t t
+s,@mkdir_p@,mkdir -p --,;t t
+s,@AWK@,gawk,;t t
+s,@SET_MAKE@,,;t t
+s,@am__leading_dot@,.,;t t
+s,@AMTAR@,${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run tar,;t t
+s,@am__tar@,${AMTAR} chof - "$$tardir",;t t
+s,@am__untar@,${AMTAR} xf -,;t t
+s,@CC@,gcc,;t t
+s,@CFLAGS@,-g -O2,;t t
+s,@LDFLAGS@,,;t t
+s,@CPPFLAGS@,,;t t
+s,@ac_ct_CC@,gcc,;t t
+s,@EXEEXT@,,;t t
+s,@OBJEXT@,o,;t t
+s,@DEPDIR@,.deps,;t t
+s,@am__include@,include,;t t
+s,@am__quote@,,;t t
+s,@AMDEP_TRUE@,,;t t
+s,@AMDEP_FALSE@,#,;t t
+s,@AMDEPBACKSLASH@,\,;t t
+s,@CCDEPMODE@,depmode=gcc3,;t t
+s,@am__fastdepCC_TRUE@,,;t t
+s,@am__fastdepCC_FALSE@,#,;t t
+s,@CPP@,gcc -E,;t t
+s,@EGREP@,grep -E,;t t
+s,@WARNING_CFLAGS@,,;t t
+s,@WERROR_CFLAGS@,,;t t
+s,@WARNING_CXXFLAGS@,,;t t
+s,@YACC_SCRIPT@,yacc,;t t
+s,@YACC_LIBRARY@,liby.a,;t t
+s,@LEX@,flex,;t t
+s,@LEXLIB@,-lfl,;t t
+s,@LEX_OUTPUT_ROOT@,lex.yy,;t t
+s,@YACC@,bison -y,;t t
+s,@RANLIB@,ranlib,;t t
+s,@ac_ct_RANLIB@,ranlib,;t t
+s,@M4@,/usr/bin/m4,;t t
+s,@STDBOOL_H@,,;t t
+s,@HAVE__BOOL@,1,;t t
+s,@LIBOBJS@, dirname$U.o exitfail$U.o hard-locale$U.o hash$U.o quote$U.o quotearg$U.o fopen-safer$U.o dup-safer$U.o fd-safer$U.o pipe-safer$U.o xmalloc$U.o,;t t
+s,@GETOPT_H@,,;t t
+s,@MKINSTALLDIRS@,$(top_builddir)/build-aux/mkinstalldirs,;t t
+s,@USE_NLS@,yes,;t t
+s,@MSGFMT@,/usr/bin/msgfmt,;t t
+s,@GMSGFMT@,/usr/bin/msgfmt,;t t
+s,@XGETTEXT@,/usr/bin/xgettext,;t t
+s,@MSGMERGE@,/usr/bin/msgmerge,;t t
+s,@build@,x86_64-unknown-linux-gnu,;t t
+s,@build_cpu@,x86_64,;t t
+s,@build_vendor@,unknown,;t t
+s,@build_os@,linux-gnu,;t t
+s,@host@,x86_64-unknown-linux-gnu,;t t
+s,@host_cpu@,x86_64,;t t
+s,@host_vendor@,unknown,;t t
+s,@host_os@,linux-gnu,;t t
+s,@INTL_MACOSX_LIBS@,,;t t
+s,@LIBICONV@,-liconv,;t t
+s,@LTLIBICONV@,-liconv,;t t
+s,@INTLLIBS@,,;t t
+s,@LIBINTL@,,;t t
+s,@LTLIBINTL@,,;t t
+s,@POSUB@,po,;t t
+s,@UNISTD_H@,,;t t
+s,@BISON_LOCALEDIR@,/usr/share/locale,;t t
+s,@aclocaldir@,${datadir}/aclocal,;t t
+s,@VALGRIND@,,;t t
+s,@CXX@,g++,;t t
+s,@CXXFLAGS@,-g -O2,;t t
+s,@ac_ct_CXX@,g++,;t t
+s,@CXXDEPMODE@,depmode=gcc3,;t t
+s,@am__fastdepCXX_TRUE@,,;t t
+s,@am__fastdepCXX_FALSE@,#,;t t
+s,@BISON_CXX_WORKS@,:,;t t
+s,@BISON_CXX_WORKS_TRUE@,,;t t
+s,@BISON_CXX_WORKS_FALSE@,#,;t t
+s,@AUTOM4TE@,${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autom4te,;t t
+s,@GCC@,yes,;t t
+s,@O0CFLAGS@,-g ,;t t
+s,@O0CXXFLAGS@,-g ,;t t
+s,@LTLIBOBJS@, dirname$U.lo exitfail$U.lo hard-locale$U.lo hash$U.lo quote$U.lo quotearg$U.lo fopen-safer$U.lo dup-safer$U.lo fd-safer$U.lo pipe-safer$U.lo xmalloc$U.lo,;t t
+CEOF
+
+ # Split the substitutions into bite-sized pieces for seds with
+ # small command number limits, like on Digital OSF/1 and HP-UX.
+ ac_max_sed_lines=48
+ ac_sed_frag=1 # Number of current file.
+ ac_beg=1 # First line for current file.
+ ac_end=$ac_max_sed_lines # Line after last line for current file.
+ ac_more_lines=:
+ ac_sed_cmds=
+ while $ac_more_lines; do
+ if test $ac_beg -gt 1; then
+ sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+ else
+ sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+ fi
+ if test ! -s $tmp/subs.frag; then
+ ac_more_lines=false
+ else
+ # The purpose of the label and of the branching condition is to
+ # speed up the sed processing (if there are no `@' at all, there
+ # is no need to browse any of the substitutions).
+ # These are the two extra sed commands mentioned above.
+ (echo ':t
+ /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
+ if test -z "$ac_sed_cmds"; then
+ ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
+ else
+ ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
+ fi
+ ac_sed_frag=`expr $ac_sed_frag + 1`
+ ac_beg=$ac_end
+ ac_end=`expr $ac_end + $ac_max_sed_lines`
+ fi
+ done
+ if test -z "$ac_sed_cmds"; then
+ ac_sed_cmds=cat
+ fi
+fi # test -n "$CONFIG_FILES"
+
+for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
+ # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+ case $ac_file in
+ - | *:- | *:-:* ) # input from stdin
+ cat >$tmp/stdin
+ ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ * ) ac_file_in=$ac_file.in ;;
+ esac
+
+ # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
+ ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_file" : 'X\(//\)[^/]' \| \
+ X"$ac_file" : 'X\(//\)$' \| \
+ X"$ac_file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p "$ac_dir"
+ else
+ as_dir="$ac_dir"
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+
+# Do not use `cd foo && pwd` to compute absolute paths, because
+# the directories may not exist.
+case `pwd` in
+.) ac_abs_builddir="$ac_dir";;
+*)
+ case "$ac_dir" in
+ .) ac_abs_builddir=`pwd`;;
+ [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
+ *) ac_abs_builddir=`pwd`/"$ac_dir";;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_builddir=${ac_top_builddir}.;;
+*)
+ case ${ac_top_builddir}. in
+ .) ac_abs_top_builddir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
+ *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_srcdir=$ac_srcdir;;
+*)
+ case $ac_srcdir in
+ .) ac_abs_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
+ *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_srcdir=$ac_top_srcdir;;
+*)
+ case $ac_top_srcdir in
+ .) ac_abs_top_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
+ *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
+ esac;;
+esac
+
+
+ case $INSTALL in
+ [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+ *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
+ esac
+
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ if test x"$ac_file" = x-; then
+ configure_input=
+ else
+ configure_input="$ac_file. "
+ fi
+ configure_input=$configure_input"Generated from `echo $ac_file_in |
+ sed 's,.*/,,'` by configure."
+
+ # First look for the input files in the build tree, otherwise in the
+ # src tree.
+ ac_file_inputs=`IFS=:
+ for f in $ac_file_in; do
+ case $f in
+ -) echo $tmp/stdin ;;
+ [\\/$]*)
+ # Absolute (can't be DOS-style, as IFS=:)
+ test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ echo "$f";;
+ *) # Relative
+ if test -f "$f"; then
+ # Build tree
+ echo "$f"
+ elif test -f "$srcdir/$f"; then
+ # Source tree
+ echo "$srcdir/$f"
+ else
+ # /dev/null tree
+ { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ fi;;
+ esac
+ done` || { (exit 1); exit 1; }
+
+ if test x"$ac_file" != x-; then
+ { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+ rm -f "$ac_file"
+ fi
+ sed "/^[ ]*VPATH[ ]*=/{
+s/:*\$(srcdir):*/:/;
+s/:*\${srcdir}:*/:/;
+s/:*@srcdir@:*/:/;
+s/^\([^=]*=[ ]*\):*/\1/;
+s/:*$//;
+s/^[^=]*=[ ]*$//;
+}
+
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s,@configure_input@,$configure_input,;t t
+s,@srcdir@,$ac_srcdir,;t t
+s,@abs_srcdir@,$ac_abs_srcdir,;t t
+s,@top_srcdir@,$ac_top_srcdir,;t t
+s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
+s,@builddir@,$ac_builddir,;t t
+s,@abs_builddir@,$ac_abs_builddir,;t t
+s,@top_builddir@,$ac_top_builddir,;t t
+s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
+s,@INSTALL@,$ac_INSTALL,;t t
+" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
+ rm -f $tmp/stdin
+ if test x"$ac_file" != x-; then
+ mv $tmp/out $ac_file
+ else
+ cat $tmp/out
+ rm -f $tmp/out
+ fi
+
+ # Run the commands associated with the file.
+ case $ac_file in
+ tests/bison ) chmod +x tests/bison ;;
+ esac
+done
+
+#
+# CONFIG_HEADER section.
+#
+
+# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
+# NAME is the cpp macro being defined and VALUE is the value it is being given.
+#
+# ac_d sets the value in "#define NAME VALUE" lines.
+ac_dA='s,^\([ ]*\)#\([ ]*define[ ][ ]*\)'
+ac_dB='[ ].*$,\1#\2'
+ac_dC=' '
+ac_dD=',;t'
+# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
+ac_uA='s,^\([ ]*\)#\([ ]*\)undef\([ ][ ]*\)'
+ac_uB='$,\1#\2define\3'
+ac_uC=' '
+ac_uD=',;t'
+
+for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
+ # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+ case $ac_file in
+ - | *:- | *:-:* ) # input from stdin
+ cat >$tmp/stdin
+ ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ * ) ac_file_in=$ac_file.in ;;
+ esac
+
+ test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+
+ # First look for the input files in the build tree, otherwise in the
+ # src tree.
+ ac_file_inputs=`IFS=:
+ for f in $ac_file_in; do
+ case $f in
+ -) echo $tmp/stdin ;;
+ [\\/$]*)
+ # Absolute (can't be DOS-style, as IFS=:)
+ test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ # Do quote $f, to prevent DOS paths from being IFS'd.
+ echo "$f";;
+ *) # Relative
+ if test -f "$f"; then
+ # Build tree
+ echo "$f"
+ elif test -f "$srcdir/$f"; then
+ # Source tree
+ echo "$srcdir/$f"
+ else
+ # /dev/null tree
+ { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ fi;;
+ esac
+ done` || { (exit 1); exit 1; }
+ # Remove the trailing spaces.
+ sed 's/[ ]*$//' $ac_file_inputs >$tmp/in
+
+ # Handle all the #define templates only if necessary.
+ if grep "^[ ]*#[ ]*define" $tmp/in >/dev/null; then
+ # If there are no defines, we may have an empty if/fi
+ :
+ cat >$tmp/defines.sed <<CEOF
+/^[ ]*#[ ]*define/!b
+t clr
+: clr
+${ac_dA}PACKAGE_NAME${ac_dB}PACKAGE_NAME${ac_dC}"GNU Bison"${ac_dD}
+${ac_dA}PACKAGE_TARNAME${ac_dB}PACKAGE_TARNAME${ac_dC}"bison"${ac_dD}
+${ac_dA}PACKAGE_VERSION${ac_dB}PACKAGE_VERSION${ac_dC}"2.3"${ac_dD}
+${ac_dA}PACKAGE_STRING${ac_dB}PACKAGE_STRING${ac_dC}"GNU Bison 2.3"${ac_dD}
+${ac_dA}PACKAGE_BUGREPORT${ac_dB}PACKAGE_BUGREPORT${ac_dC}"bug-bison@gnu.org"${ac_dD}
+${ac_dA}PACKAGE${ac_dB}PACKAGE${ac_dC}"bison"${ac_dD}
+${ac_dA}VERSION${ac_dB}VERSION${ac_dC}"2.3"${ac_dD}
+${ac_dA}_GNU_SOURCE${ac_dB}_GNU_SOURCE${ac_dC}1${ac_dD}
+${ac_dA}STDC_HEADERS${ac_dB}STDC_HEADERS${ac_dC}1${ac_dD}
+${ac_dA}HAVE_SYS_TYPES_H${ac_dB}HAVE_SYS_TYPES_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_SYS_STAT_H${ac_dB}HAVE_SYS_STAT_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STDLIB_H${ac_dB}HAVE_STDLIB_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRING_H${ac_dB}HAVE_STRING_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_MEMORY_H${ac_dB}HAVE_MEMORY_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRINGS_H${ac_dB}HAVE_STRINGS_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_INTTYPES_H${ac_dB}HAVE_INTTYPES_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STDINT_H${ac_dB}HAVE_STDINT_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_UNISTD_H${ac_dB}HAVE_UNISTD_H${ac_dC}1${ac_dD}
+${ac_dA}__EXTENSIONS__${ac_dB}__EXTENSIONS__${ac_dC}1${ac_dD}
+${ac_dA}_POSIX_PTHREAD_SEMANTICS${ac_dB}_POSIX_PTHREAD_SEMANTICS${ac_dC}1${ac_dD}
+${ac_dA}YYTEXT_POINTER${ac_dB}YYTEXT_POINTER${ac_dC}1${ac_dD}
+${ac_dA}M4${ac_dB}M4${ac_dC}"/usr/bin/m4"${ac_dD}
+${ac_dA}HAVE_LOCALE_H${ac_dB}HAVE_LOCALE_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_WCHAR_H${ac_dB}HAVE_WCHAR_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_WCTYPE_H${ac_dB}HAVE_WCTYPE_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE__BOOL${ac_dB}HAVE__BOOL${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STDBOOL_H${ac_dB}HAVE_STDBOOL_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_UINTPTR_T${ac_dB}HAVE_UINTPTR_T${ac_dC}1${ac_dD}
+${ac_dA}HAVE_SETLOCALE${ac_dB}HAVE_SETLOCALE${ac_dC}1${ac_dD}
+${ac_dA}HAVE_ISASCII${ac_dB}HAVE_ISASCII${ac_dC}1${ac_dD}
+${ac_dA}HAVE_ISWPRINT${ac_dB}HAVE_ISWPRINT${ac_dC}1${ac_dD}
+${ac_dA}HAVE_MBSINIT${ac_dB}HAVE_MBSINIT${ac_dC}1${ac_dD}
+${ac_dA}HAVE_SYS_WAIT_H${ac_dB}HAVE_SYS_WAIT_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DUP2${ac_dB}HAVE_DUP2${ac_dC}1${ac_dD}
+${ac_dA}HAVE_WAITPID${ac_dB}HAVE_WAITPID${ac_dC}1${ac_dD}
+${ac_dA}HAVE_UNISTD_H${ac_dB}HAVE_UNISTD_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_FORK${ac_dB}HAVE_FORK${ac_dC}1${ac_dD}
+${ac_dA}HAVE_VFORK${ac_dB}HAVE_VFORK${ac_dC}1${ac_dD}
+CEOF
+ sed -f $tmp/defines.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+
+ cat >$tmp/defines.sed <<CEOF
+/^[ ]*#[ ]*define/!b
+t clr
+: clr
+${ac_dA}HAVE_WORKING_VFORK${ac_dB}HAVE_WORKING_VFORK${ac_dC}1${ac_dD}
+${ac_dA}HAVE_WORKING_FORK${ac_dB}HAVE_WORKING_FORK${ac_dC}1${ac_dD}
+${ac_dA}HAVE_SYS_TIME_H${ac_dB}HAVE_SYS_TIME_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_SYS_TIMES_H${ac_dB}HAVE_SYS_TIMES_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_SYS_RESOURCE_H${ac_dB}HAVE_SYS_RESOURCE_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_TIMES${ac_dB}HAVE_TIMES${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_GETRUSAGE${ac_dB}HAVE_DECL_GETRUSAGE${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_TIMES${ac_dB}HAVE_DECL_TIMES${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_CLOCK${ac_dB}HAVE_DECL_CLOCK${ac_dC}0${ac_dD}
+${ac_dA}HAVE_DECL_SYSCONF${ac_dB}HAVE_DECL_SYSCONF${ac_dC}1${ac_dD}
+${ac_dA}HAVE_CLOCK_T${ac_dB}HAVE_CLOCK_T${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRUCT_TMS${ac_dB}HAVE_STRUCT_TMS${ac_dC}1${ac_dD}
+${ac_dA}FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX${ac_dB}FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX${ac_dC}0${ac_dD}
+${ac_dA}FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR${ac_dB}FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR${ac_dC}0${ac_dD}
+${ac_dA}HAVE_DECL_STRERROR_R${ac_dB}HAVE_DECL_STRERROR_R${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRERROR_R${ac_dB}HAVE_STRERROR_R${ac_dC}1${ac_dD}
+${ac_dA}STRERROR_R_CHAR_P${ac_dB}STRERROR_R_CHAR_P${ac_dC}1${ac_dD}
+${ac_dA}HAVE_GETOPT_H${ac_dB}HAVE_GETOPT_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_GETOPT_LONG_ONLY${ac_dB}HAVE_GETOPT_LONG_ONLY${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_GETENV${ac_dB}HAVE_DECL_GETENV${ac_dC}1${ac_dD}
+${ac_dA}HAVE_INTTYPES_H_WITH_UINTMAX${ac_dB}HAVE_INTTYPES_H_WITH_UINTMAX${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STDINT_H_WITH_UINTMAX${ac_dB}HAVE_STDINT_H_WITH_UINTMAX${ac_dC}1${ac_dD}
+${ac_dA}HAVE_UNSIGNED_LONG_LONG${ac_dB}HAVE_UNSIGNED_LONG_LONG${ac_dC}1${ac_dD}
+${ac_dA}HAVE_UINTMAX_T${ac_dB}HAVE_UINTMAX_T${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_STRDUP${ac_dB}HAVE_DECL_STRDUP${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_STRNDUP${ac_dB}HAVE_DECL_STRNDUP${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_STRNLEN${ac_dB}HAVE_DECL_STRNLEN${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_CLEARERR_UNLOCKED${ac_dB}HAVE_DECL_CLEARERR_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FEOF_UNLOCKED${ac_dB}HAVE_DECL_FEOF_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FERROR_UNLOCKED${ac_dB}HAVE_DECL_FERROR_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FFLUSH_UNLOCKED${ac_dB}HAVE_DECL_FFLUSH_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FGETS_UNLOCKED${ac_dB}HAVE_DECL_FGETS_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FPUTC_UNLOCKED${ac_dB}HAVE_DECL_FPUTC_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FPUTS_UNLOCKED${ac_dB}HAVE_DECL_FPUTS_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FREAD_UNLOCKED${ac_dB}HAVE_DECL_FREAD_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_FWRITE_UNLOCKED${ac_dB}HAVE_DECL_FWRITE_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_GETC_UNLOCKED${ac_dB}HAVE_DECL_GETC_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_GETCHAR_UNLOCKED${ac_dB}HAVE_DECL_GETCHAR_UNLOCKED${ac_dC}1${ac_dD}
+CEOF
+ sed -f $tmp/defines.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+
+ cat >$tmp/defines.sed <<CEOF
+/^[ ]*#[ ]*define/!b
+t clr
+: clr
+${ac_dA}HAVE_DECL_PUTC_UNLOCKED${ac_dB}HAVE_DECL_PUTC_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_PUTCHAR_UNLOCKED${ac_dB}HAVE_DECL_PUTCHAR_UNLOCKED${ac_dC}1${ac_dD}
+${ac_dA}ENABLE_NLS${ac_dB}ENABLE_NLS${ac_dC}1${ac_dD}
+${ac_dA}HAVE_GETTEXT${ac_dB}HAVE_GETTEXT${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DCGETTEXT${ac_dB}HAVE_DCGETTEXT${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STDLIB_H${ac_dB}HAVE_STDLIB_H${ac_dC}1${ac_dD}
+${ac_dA}HAVE_MALLOC${ac_dB}HAVE_MALLOC${ac_dC}1${ac_dD}
+${ac_dA}HAVE_ISWCNTRL${ac_dB}HAVE_ISWCNTRL${ac_dC}1${ac_dD}
+${ac_dA}HAVE_WCWIDTH${ac_dB}HAVE_WCWIDTH${ac_dC}1${ac_dD}
+${ac_dA}HAVE_MBRTOWC${ac_dB}HAVE_MBRTOWC${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_WCWIDTH${ac_dB}HAVE_DECL_WCWIDTH${ac_dC}1${ac_dD}
+${ac_dA}HAVE_DECL_MBSWIDTH_IN_WCHAR_H${ac_dB}HAVE_DECL_MBSWIDTH_IN_WCHAR_H${ac_dC}0${ac_dD}
+${ac_dA}HAVE_MBSTATE_T${ac_dB}HAVE_MBSTATE_T${ac_dC}1${ac_dD}
+${ac_dA}HAVE_OBSTACK${ac_dB}HAVE_OBSTACK${ac_dC}1${ac_dD}
+${ac_dA}HAVE_MBSTATE_T${ac_dB}HAVE_MBSTATE_T${ac_dC}1${ac_dD}
+${ac_dA}HAVE_MBRTOWC${ac_dB}HAVE_MBRTOWC${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STPCPY${ac_dB}HAVE_STPCPY${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRDUP${ac_dB}HAVE_STRDUP${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRERROR${ac_dB}HAVE_STRERROR${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRNDUP${ac_dB}HAVE_STRNDUP${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRTOL${ac_dB}HAVE_STRTOL${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRTOUL${ac_dB}HAVE_STRTOUL${ac_dC}1${ac_dD}
+${ac_dA}HAVE_STRVERSCMP${ac_dB}HAVE_STRVERSCMP${ac_dC}1${ac_dD}
+${ac_dA}HAVE_UNISTD_H${ac_dB}HAVE_UNISTD_H${ac_dC}1${ac_dD}
+${ac_dA}USE_UNLOCKED_IO${ac_dB}USE_UNLOCKED_IO${ac_dC}1${ac_dD}
+${ac_dA}YYENABLE_NLS${ac_dB}YYENABLE_NLS${ac_dC}1${ac_dD}
+CEOF
+ sed -f $tmp/defines.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+
+ fi # grep
+
+ # Handle all the #undef templates
+ cat >$tmp/undefs.sed <<CEOF
+/^[ ]*#[ ]*undef/!b
+t clr
+: clr
+${ac_uA}PACKAGE_NAME${ac_uB}PACKAGE_NAME${ac_uC}"GNU Bison"${ac_uD}
+${ac_uA}PACKAGE_TARNAME${ac_uB}PACKAGE_TARNAME${ac_uC}"bison"${ac_uD}
+${ac_uA}PACKAGE_VERSION${ac_uB}PACKAGE_VERSION${ac_uC}"2.3"${ac_uD}
+${ac_uA}PACKAGE_STRING${ac_uB}PACKAGE_STRING${ac_uC}"GNU Bison 2.3"${ac_uD}
+${ac_uA}PACKAGE_BUGREPORT${ac_uB}PACKAGE_BUGREPORT${ac_uC}"bug-bison@gnu.org"${ac_uD}
+${ac_uA}PACKAGE${ac_uB}PACKAGE${ac_uC}"bison"${ac_uD}
+${ac_uA}VERSION${ac_uB}VERSION${ac_uC}"2.3"${ac_uD}
+${ac_uA}_GNU_SOURCE${ac_uB}_GNU_SOURCE${ac_uC}1${ac_uD}
+${ac_uA}STDC_HEADERS${ac_uB}STDC_HEADERS${ac_uC}1${ac_uD}
+${ac_uA}HAVE_SYS_TYPES_H${ac_uB}HAVE_SYS_TYPES_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_SYS_STAT_H${ac_uB}HAVE_SYS_STAT_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STDLIB_H${ac_uB}HAVE_STDLIB_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRING_H${ac_uB}HAVE_STRING_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_MEMORY_H${ac_uB}HAVE_MEMORY_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRINGS_H${ac_uB}HAVE_STRINGS_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_INTTYPES_H${ac_uB}HAVE_INTTYPES_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STDINT_H${ac_uB}HAVE_STDINT_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_UNISTD_H${ac_uB}HAVE_UNISTD_H${ac_uC}1${ac_uD}
+${ac_uA}__EXTENSIONS__${ac_uB}__EXTENSIONS__${ac_uC}1${ac_uD}
+${ac_uA}_POSIX_PTHREAD_SEMANTICS${ac_uB}_POSIX_PTHREAD_SEMANTICS${ac_uC}1${ac_uD}
+${ac_uA}YYTEXT_POINTER${ac_uB}YYTEXT_POINTER${ac_uC}1${ac_uD}
+${ac_uA}M4${ac_uB}M4${ac_uC}"/usr/bin/m4"${ac_uD}
+${ac_uA}HAVE_LOCALE_H${ac_uB}HAVE_LOCALE_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_WCHAR_H${ac_uB}HAVE_WCHAR_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_WCTYPE_H${ac_uB}HAVE_WCTYPE_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE__BOOL${ac_uB}HAVE__BOOL${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STDBOOL_H${ac_uB}HAVE_STDBOOL_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_UINTPTR_T${ac_uB}HAVE_UINTPTR_T${ac_uC}1${ac_uD}
+${ac_uA}HAVE_SETLOCALE${ac_uB}HAVE_SETLOCALE${ac_uC}1${ac_uD}
+${ac_uA}HAVE_ISASCII${ac_uB}HAVE_ISASCII${ac_uC}1${ac_uD}
+${ac_uA}HAVE_ISWPRINT${ac_uB}HAVE_ISWPRINT${ac_uC}1${ac_uD}
+${ac_uA}HAVE_MBSINIT${ac_uB}HAVE_MBSINIT${ac_uC}1${ac_uD}
+${ac_uA}HAVE_SYS_WAIT_H${ac_uB}HAVE_SYS_WAIT_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DUP2${ac_uB}HAVE_DUP2${ac_uC}1${ac_uD}
+${ac_uA}HAVE_WAITPID${ac_uB}HAVE_WAITPID${ac_uC}1${ac_uD}
+${ac_uA}HAVE_UNISTD_H${ac_uB}HAVE_UNISTD_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_FORK${ac_uB}HAVE_FORK${ac_uC}1${ac_uD}
+${ac_uA}HAVE_VFORK${ac_uB}HAVE_VFORK${ac_uC}1${ac_uD}
+CEOF
+ sed -f $tmp/undefs.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+
+ cat >$tmp/undefs.sed <<CEOF
+/^[ ]*#[ ]*undef/!b
+t clr
+: clr
+${ac_uA}HAVE_WORKING_VFORK${ac_uB}HAVE_WORKING_VFORK${ac_uC}1${ac_uD}
+${ac_uA}HAVE_WORKING_FORK${ac_uB}HAVE_WORKING_FORK${ac_uC}1${ac_uD}
+${ac_uA}HAVE_SYS_TIME_H${ac_uB}HAVE_SYS_TIME_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_SYS_TIMES_H${ac_uB}HAVE_SYS_TIMES_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_SYS_RESOURCE_H${ac_uB}HAVE_SYS_RESOURCE_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_TIMES${ac_uB}HAVE_TIMES${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_GETRUSAGE${ac_uB}HAVE_DECL_GETRUSAGE${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_TIMES${ac_uB}HAVE_DECL_TIMES${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_CLOCK${ac_uB}HAVE_DECL_CLOCK${ac_uC}0${ac_uD}
+${ac_uA}HAVE_DECL_SYSCONF${ac_uB}HAVE_DECL_SYSCONF${ac_uC}1${ac_uD}
+${ac_uA}HAVE_CLOCK_T${ac_uB}HAVE_CLOCK_T${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRUCT_TMS${ac_uB}HAVE_STRUCT_TMS${ac_uC}1${ac_uD}
+${ac_uA}FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX${ac_uB}FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX${ac_uC}0${ac_uD}
+${ac_uA}FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR${ac_uB}FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR${ac_uC}0${ac_uD}
+${ac_uA}HAVE_DECL_STRERROR_R${ac_uB}HAVE_DECL_STRERROR_R${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRERROR_R${ac_uB}HAVE_STRERROR_R${ac_uC}1${ac_uD}
+${ac_uA}STRERROR_R_CHAR_P${ac_uB}STRERROR_R_CHAR_P${ac_uC}1${ac_uD}
+${ac_uA}HAVE_GETOPT_H${ac_uB}HAVE_GETOPT_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_GETOPT_LONG_ONLY${ac_uB}HAVE_GETOPT_LONG_ONLY${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_GETENV${ac_uB}HAVE_DECL_GETENV${ac_uC}1${ac_uD}
+${ac_uA}HAVE_INTTYPES_H_WITH_UINTMAX${ac_uB}HAVE_INTTYPES_H_WITH_UINTMAX${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STDINT_H_WITH_UINTMAX${ac_uB}HAVE_STDINT_H_WITH_UINTMAX${ac_uC}1${ac_uD}
+${ac_uA}HAVE_UNSIGNED_LONG_LONG${ac_uB}HAVE_UNSIGNED_LONG_LONG${ac_uC}1${ac_uD}
+${ac_uA}HAVE_UINTMAX_T${ac_uB}HAVE_UINTMAX_T${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_STRDUP${ac_uB}HAVE_DECL_STRDUP${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_STRNDUP${ac_uB}HAVE_DECL_STRNDUP${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_STRNLEN${ac_uB}HAVE_DECL_STRNLEN${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_CLEARERR_UNLOCKED${ac_uB}HAVE_DECL_CLEARERR_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FEOF_UNLOCKED${ac_uB}HAVE_DECL_FEOF_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FERROR_UNLOCKED${ac_uB}HAVE_DECL_FERROR_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FFLUSH_UNLOCKED${ac_uB}HAVE_DECL_FFLUSH_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FGETS_UNLOCKED${ac_uB}HAVE_DECL_FGETS_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FPUTC_UNLOCKED${ac_uB}HAVE_DECL_FPUTC_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FPUTS_UNLOCKED${ac_uB}HAVE_DECL_FPUTS_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FREAD_UNLOCKED${ac_uB}HAVE_DECL_FREAD_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_FWRITE_UNLOCKED${ac_uB}HAVE_DECL_FWRITE_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_GETC_UNLOCKED${ac_uB}HAVE_DECL_GETC_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_GETCHAR_UNLOCKED${ac_uB}HAVE_DECL_GETCHAR_UNLOCKED${ac_uC}1${ac_uD}
+CEOF
+ sed -f $tmp/undefs.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+
+ cat >$tmp/undefs.sed <<CEOF
+/^[ ]*#[ ]*undef/!b
+t clr
+: clr
+${ac_uA}HAVE_DECL_PUTC_UNLOCKED${ac_uB}HAVE_DECL_PUTC_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_PUTCHAR_UNLOCKED${ac_uB}HAVE_DECL_PUTCHAR_UNLOCKED${ac_uC}1${ac_uD}
+${ac_uA}ENABLE_NLS${ac_uB}ENABLE_NLS${ac_uC}1${ac_uD}
+${ac_uA}HAVE_GETTEXT${ac_uB}HAVE_GETTEXT${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DCGETTEXT${ac_uB}HAVE_DCGETTEXT${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STDLIB_H${ac_uB}HAVE_STDLIB_H${ac_uC}1${ac_uD}
+${ac_uA}HAVE_MALLOC${ac_uB}HAVE_MALLOC${ac_uC}1${ac_uD}
+${ac_uA}HAVE_ISWCNTRL${ac_uB}HAVE_ISWCNTRL${ac_uC}1${ac_uD}
+${ac_uA}HAVE_WCWIDTH${ac_uB}HAVE_WCWIDTH${ac_uC}1${ac_uD}
+${ac_uA}HAVE_MBRTOWC${ac_uB}HAVE_MBRTOWC${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_WCWIDTH${ac_uB}HAVE_DECL_WCWIDTH${ac_uC}1${ac_uD}
+${ac_uA}HAVE_DECL_MBSWIDTH_IN_WCHAR_H${ac_uB}HAVE_DECL_MBSWIDTH_IN_WCHAR_H${ac_uC}0${ac_uD}
+${ac_uA}HAVE_MBSTATE_T${ac_uB}HAVE_MBSTATE_T${ac_uC}1${ac_uD}
+${ac_uA}HAVE_OBSTACK${ac_uB}HAVE_OBSTACK${ac_uC}1${ac_uD}
+${ac_uA}HAVE_MBSTATE_T${ac_uB}HAVE_MBSTATE_T${ac_uC}1${ac_uD}
+${ac_uA}HAVE_MBRTOWC${ac_uB}HAVE_MBRTOWC${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STPCPY${ac_uB}HAVE_STPCPY${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRDUP${ac_uB}HAVE_STRDUP${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRERROR${ac_uB}HAVE_STRERROR${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRNDUP${ac_uB}HAVE_STRNDUP${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRTOL${ac_uB}HAVE_STRTOL${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRTOUL${ac_uB}HAVE_STRTOUL${ac_uC}1${ac_uD}
+${ac_uA}HAVE_STRVERSCMP${ac_uB}HAVE_STRVERSCMP${ac_uC}1${ac_uD}
+${ac_uA}HAVE_UNISTD_H${ac_uB}HAVE_UNISTD_H${ac_uC}1${ac_uD}
+${ac_uA}USE_UNLOCKED_IO${ac_uB}USE_UNLOCKED_IO${ac_uC}1${ac_uD}
+${ac_uA}YYENABLE_NLS${ac_uB}YYENABLE_NLS${ac_uC}1${ac_uD}
+s,^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
+CEOF
+ sed -f $tmp/undefs.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ if test x"$ac_file" = x-; then
+ echo "/* Generated by configure. */" >$tmp/config.h
+ else
+ echo "/* $ac_file. Generated by configure. */" >$tmp/config.h
+ fi
+ cat $tmp/in >>$tmp/config.h
+ rm -f $tmp/in
+ if test x"$ac_file" != x-; then
+ if diff $ac_file $tmp/config.h >/dev/null 2>&1; then
+ { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
+echo "$as_me: $ac_file is unchanged" >&6;}
+ else
+ ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_file" : 'X\(//\)[^/]' \| \
+ X"$ac_file" : 'X\(//\)$' \| \
+ X"$ac_file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p "$ac_dir"
+ else
+ as_dir="$ac_dir"
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ rm -f $ac_file
+ mv $tmp/config.h $ac_file
+ fi
+ else
+ cat $tmp/config.h
+ rm -f $tmp/config.h
+ fi
+# Compute $ac_file's index in $config_headers.
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+ case $_am_header in
+ $ac_file | $ac_file:* )
+ break ;;
+ * )
+ _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+ esac
+done
+echo "timestamp for $ac_file" >`(dirname $ac_file) 2>/dev/null ||
+$as_expr X$ac_file : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X$ac_file : 'X\(//\)[^/]' \| \
+ X$ac_file : 'X\(//\)$' \| \
+ X$ac_file : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X$ac_file |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`/stamp-h$_am_stamp_count
+done
+
+#
+# CONFIG_COMMANDS section.
+#
+for ac_file in : $CONFIG_COMMANDS; do test "x$ac_file" = x: && continue
+ ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
+ ac_source=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_dir=`(dirname "$ac_dest") 2>/dev/null ||
+$as_expr X"$ac_dest" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_dest" : 'X\(//\)[^/]' \| \
+ X"$ac_dest" : 'X\(//\)$' \| \
+ X"$ac_dest" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_dest" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p "$ac_dir"
+ else
+ as_dir="$ac_dir"
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+
+# Do not use `cd foo && pwd` to compute absolute paths, because
+# the directories may not exist.
+case `pwd` in
+.) ac_abs_builddir="$ac_dir";;
+*)
+ case "$ac_dir" in
+ .) ac_abs_builddir=`pwd`;;
+ [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
+ *) ac_abs_builddir=`pwd`/"$ac_dir";;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_builddir=${ac_top_builddir}.;;
+*)
+ case ${ac_top_builddir}. in
+ .) ac_abs_top_builddir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
+ *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_srcdir=$ac_srcdir;;
+*)
+ case $ac_srcdir in
+ .) ac_abs_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
+ *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_srcdir=$ac_top_srcdir;;
+*)
+ case $ac_top_srcdir in
+ .) ac_abs_top_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
+ *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
+ esac;;
+esac
+
+
+ { echo "$as_me:$LINENO: executing $ac_dest commands" >&5
+echo "$as_me: executing $ac_dest commands" >&6;}
+ case $ac_dest in
+ depfiles ) test x"$AMDEP_TRUE" != x"" || for mf in $CONFIG_FILES; do
+ # Strip MF so we end up with the name of the file.
+ mf=`echo "$mf" | sed -e 's/:.*$//'`
+ # Check whether this is an Automake generated Makefile or not.
+ # We used to match only the files named `Makefile.in', but
+ # some people rename them; so instead we look at the file content.
+ # Grep'ing the first line is not enough: some people post-process
+ # each Makefile.in and add a new line on top of each file to say so.
+ # So let's grep whole file.
+ if grep '^#.*generated by automake' $mf > /dev/null 2>&1; then
+ dirpart=`(dirname "$mf") 2>/dev/null ||
+$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$mf" : 'X\(//\)[^/]' \| \
+ X"$mf" : 'X\(//\)$' \| \
+ X"$mf" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$mf" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ else
+ continue
+ fi
+ # Extract the definition of DEPDIR, am__include, and am__quote
+ # from the Makefile without running `make'.
+ DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+ test -z "$DEPDIR" && continue
+ am__include=`sed -n 's/^am__include = //p' < "$mf"`
+ test -z "am__include" && continue
+ am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+ # When using ansi2knr, U may be empty or an underscore; expand it
+ U=`sed -n 's/^U = //p' < "$mf"`
+ # Find all dependency output files, they are included files with
+ # $(DEPDIR) in their names. We invoke sed twice because it is the
+ # simplest approach to changing $(DEPDIR) to its actual value in the
+ # expansion.
+ for file in `sed -n "
+ s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+ sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+ # Make sure the directory exists.
+ test -f "$dirpart/$file" && continue
+ fdir=`(dirname "$file") 2>/dev/null ||
+$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$file" : 'X\(//\)[^/]' \| \
+ X"$file" : 'X\(//\)$' \| \
+ X"$file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p $dirpart/$fdir
+ else
+ as_dir=$dirpart/$fdir
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory $dirpart/$fdir" >&5
+echo "$as_me: error: cannot create directory $dirpart/$fdir" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ # echo "creating $dirpart/$file"
+ echo '# dummy' > "$dirpart/$file"
+ done
+done
+ ;;
+ default-1 )
+ for ac_file in $CONFIG_FILES; do
+ # Support "outfile[:infile[:infile...]]"
+ case "$ac_file" in
+ *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+ esac
+ # PO directories have a Makefile.in generated from Makefile.in.in.
+ case "$ac_file" in */Makefile.in)
+ # Adjust a relative srcdir.
+ ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
+ ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+ ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
+ # In autoconf-2.13 it is called $ac_given_srcdir.
+ # In autoconf-2.50 it is called $srcdir.
+ test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
+ case "$ac_given_srcdir" in
+ .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
+ /*) top_srcdir="$ac_given_srcdir" ;;
+ *) top_srcdir="$ac_dots$ac_given_srcdir" ;;
+ esac
+ # Treat a directory as a PO directory if and only if it has a
+ # POTFILES.in file. This allows packages to have multiple PO
+ # directories under different names or in different locations.
+ if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
+ rm -f "$ac_dir/POTFILES"
+ test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
+ cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES"
+ POMAKEFILEDEPS="POTFILES.in"
+ # ALL_LINGUAS, POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES depend
+ # on $ac_dir but don't depend on user-specified configuration
+ # parameters.
+ if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
+ # The LINGUAS file contains the set of available languages.
+ if test -n "$OBSOLETE_ALL_LINGUAS"; then
+ test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
+ fi
+ ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" "$ac_given_srcdir/$ac_dir/LINGUAS"`
+ # Hide the ALL_LINGUAS assigment from automake.
+ eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
+ POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS"
+ else
+ # The set of available languages was given in configure.in.
+ eval 'ALL_LINGUAS''=$OBSOLETE_ALL_LINGUAS'
+ fi
+ # Compute POFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po)
+ # Compute UPDATEPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).po-update)
+ # Compute DUMMYPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).nop)
+ # Compute GMOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo)
+ case "$ac_given_srcdir" in
+ .) srcdirpre= ;;
+ *) srcdirpre='$(srcdir)/' ;;
+ esac
+ POFILES=
+ UPDATEPOFILES=
+ DUMMYPOFILES=
+ GMOFILES=
+ for lang in $ALL_LINGUAS; do
+ POFILES="$POFILES $srcdirpre$lang.po"
+ UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
+ DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
+ GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
+ done
+ # CATALOGS depends on both $ac_dir and the user's LINGUAS
+ # environment variable.
+ INST_LINGUAS=
+ if test -n "$ALL_LINGUAS"; then
+ for presentlang in $ALL_LINGUAS; do
+ useit=no
+ if test "%UNSET%" != "$LINGUAS"; then
+ desiredlanguages="$LINGUAS"
+ else
+ desiredlanguages="$ALL_LINGUAS"
+ fi
+ for desiredlang in $desiredlanguages; do
+ # Use the presentlang catalog if desiredlang is
+ # a. equal to presentlang, or
+ # b. a variant of presentlang (because in this case,
+ # presentlang can be used as a fallback for messages
+ # which are not translated in the desiredlang catalog).
+ case "$desiredlang" in
+ "$presentlang"*) useit=yes;;
+ esac
+ done
+ if test $useit = yes; then
+ INST_LINGUAS="$INST_LINGUAS $presentlang"
+ fi
+ done
+ fi
+ CATALOGS=
+ if test -n "$INST_LINGUAS"; then
+ for lang in $INST_LINGUAS; do
+ CATALOGS="$CATALOGS $lang.gmo"
+ done
+ fi
+ test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
+ sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" -e "s|@POMAKEFILEDEPS@|$POMAKEFILEDEPS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
+ for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do
+ if test -f "$f"; then
+ case "$f" in
+ *.orig | *.bak | *~) ;;
+ *) cat "$f" >> "$ac_dir/Makefile" ;;
+ esac
+ fi
+ done
+ fi
+ ;;
+ esac
+ done ;;
+ tests/atconfig ) cat >tests/atconfig <<ATEOF
+# Configurable variable values for building test suites.
+# Generated by $0.
+# Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+
+# The test suite will define top_srcdir=$at_top_srcdir/../.. etc.
+at_testdir='tests'
+abs_builddir='$ac_abs_builddir'
+at_srcdir='$ac_srcdir'
+abs_srcdir='$ac_abs_srcdir'
+at_top_srcdir='$ac_top_srcdir'
+abs_top_srcdir='$ac_abs_top_srcdir'
+at_top_builddir='$ac_top_builddir'
+abs_top_builddir='$ac_abs_top_builddir'
+
+AUTOTEST_PATH='tests'
+
+SHELL=\${CONFIG_SHELL-'$SHELL'}
+ATEOF
+ ;;
+ esac
+done
+
+{ (exit 0); exit 0; }
diff --git a/configure b/configure
new file mode 100755
index 0000000..40270df
--- /dev/null
+++ b/configure
@@ -0,0 +1,17646 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.59 for GNU Bison 2.3.
+#
+# Report bugs to <bug-bison@gnu.org>.
+#
+# Copyright (C) 2003 Free Software Foundation, Inc.
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## --------------------- ##
+## M4sh Initialization. ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+ # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '${1+"$@"}'='"$@"'
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+ set -o posix
+fi
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# Support unset when possible.
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+ as_unset=unset
+else
+ as_unset=false
+fi
+
+
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+ LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+ LC_TELEPHONE LC_TIME
+do
+ if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+ eval $as_var=C; export $as_var
+ else
+ $as_unset $as_var
+ fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)$' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+ /^X\/\(\/\/\)$/{ s//\1/; q; }
+ /^X\/\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" || {
+ # Find who we are. Look in the path if we contain no path at all
+ # relative or not.
+ case $0 in
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+ ;;
+ esac
+ # We did not find ourselves, most probably we were run as `sh COMMAND'
+ # in which case we are not to be found in the path.
+ if test "x$as_myself" = x; then
+ as_myself=$0
+ fi
+ if test ! -f "$as_myself"; then
+ { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
+ { (exit 1); exit 1; }; }
+ fi
+ case $CONFIG_SHELL in
+ '')
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for as_base in sh bash ksh sh5; do
+ case $as_dir in
+ /*)
+ if ("$as_dir/$as_base" -c '
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
+ $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
+ $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
+ CONFIG_SHELL=$as_dir/$as_base
+ export CONFIG_SHELL
+ exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+ fi;;
+ esac
+ done
+done
+;;
+ esac
+
+ # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+ # uniformly replaced by the line number. The first 'sed' inserts a
+ # line-number line before each line; the second 'sed' does the real
+ # work. The second script uses 'N' to pair each line-number line
+ # with the numbered line, and appends trailing '-' during
+ # substitution so that $LINENO is not a special case at line end.
+ # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+ # second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
+ sed '=' <$as_myself |
+ sed '
+ N
+ s,$,-,
+ : loop
+ s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+ t loop
+ s,-$,,
+ s,^['$as_cr_digits']*\n,,
+ ' >$as_me.lineno &&
+ chmod +x $as_me.lineno ||
+ { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
+ { (exit 1); exit 1; }; }
+
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensible to this).
+ . ./$as_me.lineno
+ # Exit status is that of the last command.
+ exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+ *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T=' ' ;;
+ *c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+ *) ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+ # We could just check for DJGPP; but this test a) works b) is more generic
+ # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+ if test -f conf$$.exe; then
+ # Don't use ln at all; we don't have any links
+ as_ln_s='cp -p'
+ else
+ as_ln_s='ln -s'
+ fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+else
+ as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+if mkdir -p . 2>/dev/null; then
+ as_mkdir_p=:
+else
+ test -d ./-p && rmdir ./-p
+ as_mkdir_p=false
+fi
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS=" $as_nl"
+
+# CDPATH.
+$as_unset CDPATH
+
+
+# Name of the host.
+# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+exec 6>&1
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_config_libobj_dir=.
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+# Maximum number of lines to put in a shell here document.
+# This variable seems obsolete. It should probably be removed, and
+# only ac_max_sed_lines should be used.
+: ${ac_max_here_lines=38}
+
+# Identity of this package.
+PACKAGE_NAME='GNU Bison'
+PACKAGE_TARNAME='bison'
+PACKAGE_VERSION='2.3'
+PACKAGE_STRING='GNU Bison 2.3'
+PACKAGE_BUGREPORT='bug-bison@gnu.org'
+
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# if HAVE_STDLIB_H
+# include <stdlib.h>
+# endif
+#endif
+#if HAVE_STRING_H
+# if !STDC_HEADERS && HAVE_MEMORY_H
+# include <memory.h>
+# endif
+# include <string.h>
+#endif
+#if HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#else
+# if HAVE_STDINT_H
+# include <stdint.h>
+# endif
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+gl_header_list=
+gl_func_list=
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CPP EGREP WARNING_CFLAGS WERROR_CFLAGS WARNING_CXXFLAGS YACC_SCRIPT YACC_LIBRARY LEX LEXLIB LEX_OUTPUT_ROOT YACC RANLIB ac_ct_RANLIB M4 STDBOOL_H HAVE__BOOL LIBOBJS GETOPT_H MKINSTALLDIRS USE_NLS MSGFMT GMSGFMT XGETTEXT MSGMERGE build build_cpu build_vendor build_os host host_cpu host_vendor host_os INTL_MACOSX_LIBS LIBICONV LTLIBICONV INTLLIBS LIBINTL LTLIBINTL POSUB UNISTD_H BISON_LOCALEDIR aclocaldir VALGRIND CXX CXXFLAGS ac_ct_CXX CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE BISON_CXX_WORKS BISON_CXX_WORKS_TRUE BISON_CXX_WORKS_FALSE AUTOM4TE GCC O0CFLAGS O0CXXFLAGS LTLIBOBJS'
+ac_subst_files=''
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datadir='${prefix}/share'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+libdir='${exec_prefix}/lib'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+infodir='${prefix}/info'
+mandir='${prefix}/man'
+
+ac_prev=
+for ac_option
+do
+ # If the previous option needs an argument, assign it.
+ if test -n "$ac_prev"; then
+ eval "$ac_prev=\$ac_option"
+ ac_prev=
+ continue
+ fi
+
+ ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`
+
+ # Accept the important Cygnus configure options, so we can diagnose typos.
+
+ case $ac_option in
+
+ -bindir | --bindir | --bindi | --bind | --bin | --bi)
+ ac_prev=bindir ;;
+ -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+ bindir=$ac_optarg ;;
+
+ -build | --build | --buil | --bui | --bu)
+ ac_prev=build_alias ;;
+ -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+ build_alias=$ac_optarg ;;
+
+ -cache-file | --cache-file | --cache-fil | --cache-fi \
+ | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+ ac_prev=cache_file ;;
+ -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+ | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+ cache_file=$ac_optarg ;;
+
+ --config-cache | -C)
+ cache_file=config.cache ;;
+
+ -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+ ac_prev=datadir ;;
+ -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+ | --da=*)
+ datadir=$ac_optarg ;;
+
+ -disable-* | --disable-*)
+ ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+ { (exit 1); exit 1; }; }
+ ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+ eval "enable_$ac_feature=no" ;;
+
+ -enable-* | --enable-*)
+ ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+ { (exit 1); exit 1; }; }
+ ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+ case $ac_option in
+ *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
+ *) ac_optarg=yes ;;
+ esac
+ eval "enable_$ac_feature='$ac_optarg'" ;;
+
+ -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+ | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+ | --exec | --exe | --ex)
+ ac_prev=exec_prefix ;;
+ -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+ | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+ | --exec=* | --exe=* | --ex=*)
+ exec_prefix=$ac_optarg ;;
+
+ -gas | --gas | --ga | --g)
+ # Obsolete; use --with-gas.
+ with_gas=yes ;;
+
+ -help | --help | --hel | --he | -h)
+ ac_init_help=long ;;
+ -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+ ac_init_help=recursive ;;
+ -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+ ac_init_help=short ;;
+
+ -host | --host | --hos | --ho)
+ ac_prev=host_alias ;;
+ -host=* | --host=* | --hos=* | --ho=*)
+ host_alias=$ac_optarg ;;
+
+ -includedir | --includedir | --includedi | --included | --include \
+ | --includ | --inclu | --incl | --inc)
+ ac_prev=includedir ;;
+ -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+ | --includ=* | --inclu=* | --incl=* | --inc=*)
+ includedir=$ac_optarg ;;
+
+ -infodir | --infodir | --infodi | --infod | --info | --inf)
+ ac_prev=infodir ;;
+ -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+ infodir=$ac_optarg ;;
+
+ -libdir | --libdir | --libdi | --libd)
+ ac_prev=libdir ;;
+ -libdir=* | --libdir=* | --libdi=* | --libd=*)
+ libdir=$ac_optarg ;;
+
+ -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+ | --libexe | --libex | --libe)
+ ac_prev=libexecdir ;;
+ -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+ | --libexe=* | --libex=* | --libe=*)
+ libexecdir=$ac_optarg ;;
+
+ -localstatedir | --localstatedir | --localstatedi | --localstated \
+ | --localstate | --localstat | --localsta | --localst \
+ | --locals | --local | --loca | --loc | --lo)
+ ac_prev=localstatedir ;;
+ -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+ | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+ | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+ localstatedir=$ac_optarg ;;
+
+ -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+ ac_prev=mandir ;;
+ -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+ mandir=$ac_optarg ;;
+
+ -nfp | --nfp | --nf)
+ # Obsolete; use --without-fp.
+ with_fp=no ;;
+
+ -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+ | --no-cr | --no-c | -n)
+ no_create=yes ;;
+
+ -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+ | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+ no_recursion=yes ;;
+
+ -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+ | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+ | --oldin | --oldi | --old | --ol | --o)
+ ac_prev=oldincludedir ;;
+ -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+ | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+ | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+ oldincludedir=$ac_optarg ;;
+
+ -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+ ac_prev=prefix ;;
+ -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+ prefix=$ac_optarg ;;
+
+ -program-prefix | --program-prefix | --program-prefi | --program-pref \
+ | --program-pre | --program-pr | --program-p)
+ ac_prev=program_prefix ;;
+ -program-prefix=* | --program-prefix=* | --program-prefi=* \
+ | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+ program_prefix=$ac_optarg ;;
+
+ -program-suffix | --program-suffix | --program-suffi | --program-suff \
+ | --program-suf | --program-su | --program-s)
+ ac_prev=program_suffix ;;
+ -program-suffix=* | --program-suffix=* | --program-suffi=* \
+ | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+ program_suffix=$ac_optarg ;;
+
+ -program-transform-name | --program-transform-name \
+ | --program-transform-nam | --program-transform-na \
+ | --program-transform-n | --program-transform- \
+ | --program-transform | --program-transfor \
+ | --program-transfo | --program-transf \
+ | --program-trans | --program-tran \
+ | --progr-tra | --program-tr | --program-t)
+ ac_prev=program_transform_name ;;
+ -program-transform-name=* | --program-transform-name=* \
+ | --program-transform-nam=* | --program-transform-na=* \
+ | --program-transform-n=* | --program-transform-=* \
+ | --program-transform=* | --program-transfor=* \
+ | --program-transfo=* | --program-transf=* \
+ | --program-trans=* | --program-tran=* \
+ | --progr-tra=* | --program-tr=* | --program-t=*)
+ program_transform_name=$ac_optarg ;;
+
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil)
+ silent=yes ;;
+
+ -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+ ac_prev=sbindir ;;
+ -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+ | --sbi=* | --sb=*)
+ sbindir=$ac_optarg ;;
+
+ -sharedstatedir | --sharedstatedir | --sharedstatedi \
+ | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+ | --sharedst | --shareds | --shared | --share | --shar \
+ | --sha | --sh)
+ ac_prev=sharedstatedir ;;
+ -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+ | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+ | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+ | --sha=* | --sh=*)
+ sharedstatedir=$ac_optarg ;;
+
+ -site | --site | --sit)
+ ac_prev=site ;;
+ -site=* | --site=* | --sit=*)
+ site=$ac_optarg ;;
+
+ -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+ ac_prev=srcdir ;;
+ -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+ srcdir=$ac_optarg ;;
+
+ -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+ | --syscon | --sysco | --sysc | --sys | --sy)
+ ac_prev=sysconfdir ;;
+ -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+ | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+ sysconfdir=$ac_optarg ;;
+
+ -target | --target | --targe | --targ | --tar | --ta | --t)
+ ac_prev=target_alias ;;
+ -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+ target_alias=$ac_optarg ;;
+
+ -v | -verbose | --verbose | --verbos | --verbo | --verb)
+ verbose=yes ;;
+
+ -version | --version | --versio | --versi | --vers | -V)
+ ac_init_version=: ;;
+
+ -with-* | --with-*)
+ ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid package name: $ac_package" >&2
+ { (exit 1); exit 1; }; }
+ ac_package=`echo $ac_package| sed 's/-/_/g'`
+ case $ac_option in
+ *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
+ *) ac_optarg=yes ;;
+ esac
+ eval "with_$ac_package='$ac_optarg'" ;;
+
+ -without-* | --without-*)
+ ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid package name: $ac_package" >&2
+ { (exit 1); exit 1; }; }
+ ac_package=`echo $ac_package | sed 's/-/_/g'`
+ eval "with_$ac_package=no" ;;
+
+ --x)
+ # Obsolete; use --with-x.
+ with_x=yes ;;
+
+ -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+ | --x-incl | --x-inc | --x-in | --x-i)
+ ac_prev=x_includes ;;
+ -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+ | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+ x_includes=$ac_optarg ;;
+
+ -x-libraries | --x-libraries | --x-librarie | --x-librari \
+ | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+ ac_prev=x_libraries ;;
+ -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+ | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+ x_libraries=$ac_optarg ;;
+
+ -*) { echo "$as_me: error: unrecognized option: $ac_option
+Try \`$0 --help' for more information." >&2
+ { (exit 1); exit 1; }; }
+ ;;
+
+ *=*)
+ ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
+ { (exit 1); exit 1; }; }
+ ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
+ eval "$ac_envvar='$ac_optarg'"
+ export $ac_envvar ;;
+
+ *)
+ # FIXME: should be removed in autoconf 3.0.
+ echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+ expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+ echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+ : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
+ ;;
+
+ esac
+done
+
+if test -n "$ac_prev"; then
+ ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+ { echo "$as_me: error: missing argument to $ac_option" >&2
+ { (exit 1); exit 1; }; }
+fi
+
+# Be sure to have absolute paths.
+for ac_var in exec_prefix prefix
+do
+ eval ac_val=$`echo $ac_var`
+ case $ac_val in
+ [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
+ *) { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
+ { (exit 1); exit 1; }; };;
+ esac
+done
+
+# Be sure to have absolute paths.
+for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
+ localstatedir libdir includedir oldincludedir infodir mandir
+do
+ eval ac_val=$`echo $ac_var`
+ case $ac_val in
+ [\\/$]* | ?:[\\/]* ) ;;
+ *) { echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
+ { (exit 1); exit 1; }; };;
+ esac
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+ if test "x$build_alias" = x; then
+ cross_compiling=maybe
+ echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
+ If a cross compiler is detected then cross compile mode will be used." >&2
+ elif test "x$build_alias" != "x$host_alias"; then
+ cross_compiling=yes
+ fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+ ac_srcdir_defaulted=yes
+ # Try the directory containing this script, then its parent.
+ ac_confdir=`(dirname "$0") 2>/dev/null ||
+$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$0" : 'X\(//\)[^/]' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$0" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ srcdir=$ac_confdir
+ if test ! -r $srcdir/$ac_unique_file; then
+ srcdir=..
+ fi
+else
+ ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+ if test "$ac_srcdir_defaulted" = yes; then
+ { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
+ { (exit 1); exit 1; }; }
+ else
+ { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
+ { (exit 1); exit 1; }; }
+ fi
+fi
+(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
+ { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
+ { (exit 1); exit 1; }; }
+srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
+ac_env_build_alias_set=${build_alias+set}
+ac_env_build_alias_value=$build_alias
+ac_cv_env_build_alias_set=${build_alias+set}
+ac_cv_env_build_alias_value=$build_alias
+ac_env_host_alias_set=${host_alias+set}
+ac_env_host_alias_value=$host_alias
+ac_cv_env_host_alias_set=${host_alias+set}
+ac_cv_env_host_alias_value=$host_alias
+ac_env_target_alias_set=${target_alias+set}
+ac_env_target_alias_value=$target_alias
+ac_cv_env_target_alias_set=${target_alias+set}
+ac_cv_env_target_alias_value=$target_alias
+ac_env_CC_set=${CC+set}
+ac_env_CC_value=$CC
+ac_cv_env_CC_set=${CC+set}
+ac_cv_env_CC_value=$CC
+ac_env_CFLAGS_set=${CFLAGS+set}
+ac_env_CFLAGS_value=$CFLAGS
+ac_cv_env_CFLAGS_set=${CFLAGS+set}
+ac_cv_env_CFLAGS_value=$CFLAGS
+ac_env_LDFLAGS_set=${LDFLAGS+set}
+ac_env_LDFLAGS_value=$LDFLAGS
+ac_cv_env_LDFLAGS_set=${LDFLAGS+set}
+ac_cv_env_LDFLAGS_value=$LDFLAGS
+ac_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_env_CPPFLAGS_value=$CPPFLAGS
+ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_cv_env_CPPFLAGS_value=$CPPFLAGS
+ac_env_CPP_set=${CPP+set}
+ac_env_CPP_value=$CPP
+ac_cv_env_CPP_set=${CPP+set}
+ac_cv_env_CPP_value=$CPP
+ac_env_CXX_set=${CXX+set}
+ac_env_CXX_value=$CXX
+ac_cv_env_CXX_set=${CXX+set}
+ac_cv_env_CXX_value=$CXX
+ac_env_CXXFLAGS_set=${CXXFLAGS+set}
+ac_env_CXXFLAGS_value=$CXXFLAGS
+ac_cv_env_CXXFLAGS_set=${CXXFLAGS+set}
+ac_cv_env_CXXFLAGS_value=$CXXFLAGS
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+ # Omit some internal or obsolete options to make the list less imposing.
+ # This message is too long to be a string in the A/UX 3.1 sh.
+ cat <<_ACEOF
+\`configure' configures GNU Bison 2.3 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE. See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+ -h, --help display this help and exit
+ --help=short display options specific to this package
+ --help=recursive display the short help of all the included packages
+ -V, --version display version information and exit
+ -q, --quiet, --silent do not print \`checking...' messages
+ --cache-file=FILE cache test results in FILE [disabled]
+ -C, --config-cache alias for \`--cache-file=config.cache'
+ -n, --no-create do not create output files
+ --srcdir=DIR find the sources in DIR [configure dir or \`..']
+
+_ACEOF
+
+ cat <<_ACEOF
+Installation directories:
+ --prefix=PREFIX install architecture-independent files in PREFIX
+ [$ac_default_prefix]
+ --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
+ [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+ --bindir=DIR user executables [EPREFIX/bin]
+ --sbindir=DIR system admin executables [EPREFIX/sbin]
+ --libexecdir=DIR program executables [EPREFIX/libexec]
+ --datadir=DIR read-only architecture-independent data [PREFIX/share]
+ --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
+ --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
+ --localstatedir=DIR modifiable single-machine data [PREFIX/var]
+ --libdir=DIR object code libraries [EPREFIX/lib]
+ --includedir=DIR C header files [PREFIX/include]
+ --oldincludedir=DIR C header files for non-gcc [/usr/include]
+ --infodir=DIR info documentation [PREFIX/info]
+ --mandir=DIR man documentation [PREFIX/man]
+_ACEOF
+
+ cat <<\_ACEOF
+
+Program names:
+ --program-prefix=PREFIX prepend PREFIX to installed program names
+ --program-suffix=SUFFIX append SUFFIX to installed program names
+ --program-transform-name=PROGRAM run sed PROGRAM on installed program names
+
+System types:
+ --build=BUILD configure for building on BUILD [guessed]
+ --host=HOST cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+ case $ac_init_help in
+ short | recursive ) echo "Configuration of GNU Bison 2.3:";;
+ esac
+ cat <<\_ACEOF
+
+Optional Features:
+ --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
+ --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
+ --disable-dependency-tracking speeds up one-time build
+ --enable-dependency-tracking do not reject slow dependency extractors
+ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)
+ --disable-yacc do not build a yacc command or an -ly library
+ --disable-nls do not use Native Language Support
+ --disable-rpath do not hardcode runtime library paths
+
+Optional Packages:
+ --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
+ --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)
+ --with-dmalloc use dmalloc, as in
+ http://www.dmalloc.com/dmalloc.tar.gz
+ --with-gnu-ld assume the C compiler uses GNU ld default=no
+ --with-libiconv-prefix[=DIR] search for libiconv in DIR/include and DIR/lib
+ --without-libiconv-prefix don't search for libiconv in includedir and libdir
+ --with-libintl-prefix[=DIR] search for libintl in DIR/include and DIR/lib
+ --without-libintl-prefix don't search for libintl in includedir and libdir
+
+Some influential environment variables:
+ CC C compiler command
+ CFLAGS C compiler flags
+ LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
+ nonstandard directory <lib dir>
+ CPPFLAGS C/C++ preprocessor flags, e.g. -I<include dir> if you have
+ headers in a nonstandard directory <include dir>
+ CPP C preprocessor
+ CXX C++ compiler command
+ CXXFLAGS C++ compiler flags
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to <bug-bison@gnu.org>.
+_ACEOF
+fi
+
+if test "$ac_init_help" = "recursive"; then
+ # If there are subdirs, report their specific --help.
+ ac_popdir=`pwd`
+ for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+ test -d $ac_dir || continue
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+
+# Do not use `cd foo && pwd` to compute absolute paths, because
+# the directories may not exist.
+case `pwd` in
+.) ac_abs_builddir="$ac_dir";;
+*)
+ case "$ac_dir" in
+ .) ac_abs_builddir=`pwd`;;
+ [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
+ *) ac_abs_builddir=`pwd`/"$ac_dir";;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_builddir=${ac_top_builddir}.;;
+*)
+ case ${ac_top_builddir}. in
+ .) ac_abs_top_builddir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
+ *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_srcdir=$ac_srcdir;;
+*)
+ case $ac_srcdir in
+ .) ac_abs_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
+ *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_srcdir=$ac_top_srcdir;;
+*)
+ case $ac_top_srcdir in
+ .) ac_abs_top_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
+ *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
+ esac;;
+esac
+
+ cd $ac_dir
+ # Check for guested configure; otherwise get Cygnus style configure.
+ if test -f $ac_srcdir/configure.gnu; then
+ echo
+ $SHELL $ac_srcdir/configure.gnu --help=recursive
+ elif test -f $ac_srcdir/configure; then
+ echo
+ $SHELL $ac_srcdir/configure --help=recursive
+ elif test -f $ac_srcdir/configure.ac ||
+ test -f $ac_srcdir/configure.in; then
+ echo
+ $ac_configure --help
+ else
+ echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+ fi
+ cd "$ac_popdir"
+ done
+fi
+
+test -n "$ac_init_help" && exit 0
+if $ac_init_version; then
+ cat <<\_ACEOF
+GNU Bison configure 2.3
+generated by GNU Autoconf 2.59
+
+Copyright (C) 2003 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+ exit 0
+fi
+exec 5>config.log
+cat >&5 <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by GNU Bison $as_me 2.3, which was
+generated by GNU Autoconf 2.59. Invocation command line was
+
+ $ $0 $@
+
+_ACEOF
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown`
+
+/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown`
+/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+hostinfo = `(hostinfo) 2>/dev/null || echo unknown`
+/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown`
+/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown`
+/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ echo "PATH: $as_dir"
+done
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_sep=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+ for ac_arg
+ do
+ case $ac_arg in
+ -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil)
+ continue ;;
+ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+ ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+ esac
+ case $ac_pass in
+ 1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
+ 2)
+ ac_configure_args1="$ac_configure_args1 '$ac_arg'"
+ if test $ac_must_keep_next = true; then
+ ac_must_keep_next=false # Got value, back to normal.
+ else
+ case $ac_arg in
+ *=* | --config-cache | -C | -disable-* | --disable-* \
+ | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+ | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+ | -with-* | --with-* | -without-* | --without-* | --x)
+ case "$ac_configure_args0 " in
+ "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+ esac
+ ;;
+ -* ) ac_must_keep_next=true ;;
+ esac
+ fi
+ ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
+ # Get rid of the leading space.
+ ac_sep=" "
+ ;;
+ esac
+ done
+done
+$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
+$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log. We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Be sure not to use single quotes in there, as some shells,
+# such as our DU 5.0 friend, will then `close' the trap.
+trap 'exit_status=$?
+ # Save into config.log some information that might help in debugging.
+ {
+ echo
+
+ cat <<\_ASBOX
+## ---------------- ##
+## Cache variables. ##
+## ---------------- ##
+_ASBOX
+ echo
+ # The following way of writing the cache mishandles newlines in values,
+{
+ (set) 2>&1 |
+ case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
+ *ac_space=\ *)
+ sed -n \
+ "s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
+ s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
+ ;;
+ *)
+ sed -n \
+ "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+ ;;
+ esac;
+}
+ echo
+
+ cat <<\_ASBOX
+## ----------------- ##
+## Output variables. ##
+## ----------------- ##
+_ASBOX
+ echo
+ for ac_var in $ac_subst_vars
+ do
+ eval ac_val=$`echo $ac_var`
+ echo "$ac_var='"'"'$ac_val'"'"'"
+ done | sort
+ echo
+
+ if test -n "$ac_subst_files"; then
+ cat <<\_ASBOX
+## ------------- ##
+## Output files. ##
+## ------------- ##
+_ASBOX
+ echo
+ for ac_var in $ac_subst_files
+ do
+ eval ac_val=$`echo $ac_var`
+ echo "$ac_var='"'"'$ac_val'"'"'"
+ done | sort
+ echo
+ fi
+
+ if test -s confdefs.h; then
+ cat <<\_ASBOX
+## ----------- ##
+## confdefs.h. ##
+## ----------- ##
+_ASBOX
+ echo
+ sed "/^$/d" confdefs.h | sort
+ echo
+ fi
+ test "$ac_signal" != 0 &&
+ echo "$as_me: caught signal $ac_signal"
+ echo "$as_me: exit $exit_status"
+ } >&5
+ rm -f core *.core &&
+ rm -rf conftest* confdefs* conf$$* $ac_clean_files &&
+ exit $exit_status
+ ' 0
+for ac_signal in 1 2 13 15; do
+ trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo >confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer explicitly selected file to automatically selected ones.
+if test -z "$CONFIG_SITE"; then
+ if test "x$prefix" != xNONE; then
+ CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+ else
+ CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+ fi
+fi
+for ac_site_file in $CONFIG_SITE; do
+ if test -r "$ac_site_file"; then
+ { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
+echo "$as_me: loading site script $ac_site_file" >&6;}
+ sed 's/^/| /' "$ac_site_file" >&5
+ . "$ac_site_file"
+ fi
+done
+
+if test -r "$cache_file"; then
+ # Some versions of bash will fail to source /dev/null (special
+ # files actually), so we avoid doing that.
+ if test -f "$cache_file"; then
+ { echo "$as_me:$LINENO: loading cache $cache_file" >&5
+echo "$as_me: loading cache $cache_file" >&6;}
+ case $cache_file in
+ [\\/]* | ?:[\\/]* ) . $cache_file;;
+ *) . ./$cache_file;;
+ esac
+ fi
+else
+ { echo "$as_me:$LINENO: creating cache $cache_file" >&5
+echo "$as_me: creating cache $cache_file" >&6;}
+ >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in `(set) 2>&1 |
+ sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
+ eval ac_old_set=\$ac_cv_env_${ac_var}_set
+ eval ac_new_set=\$ac_env_${ac_var}_set
+ eval ac_old_val="\$ac_cv_env_${ac_var}_value"
+ eval ac_new_val="\$ac_env_${ac_var}_value"
+ case $ac_old_set,$ac_new_set in
+ set,)
+ { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+ ac_cache_corrupted=: ;;
+ ,set)
+ { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+ ac_cache_corrupted=: ;;
+ ,);;
+ *)
+ if test "x$ac_old_val" != "x$ac_new_val"; then
+ { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+ { echo "$as_me:$LINENO: former value: $ac_old_val" >&5
+echo "$as_me: former value: $ac_old_val" >&2;}
+ { echo "$as_me:$LINENO: current value: $ac_new_val" >&5
+echo "$as_me: current value: $ac_new_val" >&2;}
+ ac_cache_corrupted=:
+ fi;;
+ esac
+ # Pass precious variables to config.status.
+ if test "$ac_new_set" = set; then
+ case $ac_new_val in
+ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+ ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+ *) ac_arg=$ac_var=$ac_new_val ;;
+ esac
+ case " $ac_configure_args " in
+ *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
+ *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+ esac
+ fi
+done
+if $ac_cache_corrupted; then
+ { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
+echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+ { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
+echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+gl_header_list="$gl_header_list locale.h"
+gl_func_list="$gl_func_list setlocale"
+gl_header_list="$gl_header_list wchar.h"
+gl_header_list="$gl_header_list wctype.h"
+gl_func_list="$gl_func_list isascii"
+gl_func_list="$gl_func_list iswprint"
+gl_func_list="$gl_func_list mbsinit"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ac_aux_dir=
+for ac_dir in build-aux $srcdir/build-aux; do
+ if test -f $ac_dir/install-sh; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/install-sh -c"
+ break
+ elif test -f $ac_dir/install.sh; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/install.sh -c"
+ break
+ elif test -f $ac_dir/shtool; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/shtool install -c"
+ break
+ fi
+done
+if test -z "$ac_aux_dir"; then
+ { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in build-aux $srcdir/build-aux" >&5
+echo "$as_me: error: cannot find install-sh or install.sh in build-aux $srcdir/build-aux" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"
+ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
+
+case m4 in
+ [\\/]* | ?:[\\/]* ) ac_macro_dir=m4 ;;
+ *) ac_macro_dir=$srcdir/m4 ;;
+esac
+if test -d "$ac_macro_dir"; then :
+else
+ { { echo "$as_me:$LINENO: error: cannot find macro directory \`m4'" >&5
+echo "$as_me: error: cannot find macro directory \`m4'" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+
+# We don't have a file m4/Makefile.am, so we need Automake 1.8 or later.
+am__api_version="1.9"
+# Find a good install program. We prefer a C program (faster),
+# so one script is as good as another. But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
+if test -z "$INSTALL"; then
+if test "${ac_cv_path_install+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in
+ ./ | .// | /cC/* | \
+ /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+ ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
+ /usr/ucb/* ) ;;
+ *)
+ # OSF1 and SCO ODT 3.0 have their own names for install.
+ # Don't use installbsd from OSF since it installs stuff as root
+ # by default.
+ for ac_prog in ginstall scoinst install; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+ if test $ac_prog = install &&
+ grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # AIX install. It has an incompatible calling convention.
+ :
+ elif test $ac_prog = install &&
+ grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # program-specific install script used by HP pwplus--don't use.
+ :
+ else
+ ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+ break 3
+ fi
+ fi
+ done
+ done
+ ;;
+esac
+done
+
+
+fi
+ if test "${ac_cv_path_install+set}" = set; then
+ INSTALL=$ac_cv_path_install
+ else
+ # As a last resort, use the slow shell script. We don't cache a
+ # path for INSTALL within a source directory, because that will
+ # break other packages using the cache if that directory is
+ # removed, or if the path is relative.
+ INSTALL=$ac_install_sh
+ fi
+fi
+echo "$as_me:$LINENO: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+echo "$as_me:$LINENO: checking whether build environment is sane" >&5
+echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments. Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+ set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+ if test "$*" = "X"; then
+ # -L didn't work.
+ set X `ls -t $srcdir/configure conftest.file`
+ fi
+ rm -f conftest.file
+ if test "$*" != "X $srcdir/configure conftest.file" \
+ && test "$*" != "X conftest.file $srcdir/configure"; then
+
+ # If neither matched, then we have a broken ls. This can happen
+ # if, for instance, CONFIG_SHELL is bash and it inherits a
+ # broken ls alias from the environment. This has actually
+ # happened. Such a system could not be considered "sane".
+ { { echo "$as_me:$LINENO: error: ls -t appears to fail. Make sure there is not a broken
+alias in your environment" >&5
+echo "$as_me: error: ls -t appears to fail. Make sure there is not a broken
+alias in your environment" >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+
+ test "$2" = conftest.file
+ )
+then
+ # Ok.
+ :
+else
+ { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
+Check your system clock" >&5
+echo "$as_me: error: newly created file is older than distributed files!
+Check your system clock" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+test "$program_prefix" != NONE &&
+ program_transform_name="s,^,$program_prefix,;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+ program_transform_name="s,\$,$program_suffix,;$program_transform_name"
+# Double any \ or $. echo might interpret backslashes.
+# By default was `s,x,x', remove it if useless.
+cat <<\_ACEOF >conftest.sed
+s/[\\$]/&&/g;s/;s,x,x,$//
+_ACEOF
+program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
+rm conftest.sed
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+ am_missing_run="$MISSING --run "
+else
+ am_missing_run=
+ { echo "$as_me:$LINENO: WARNING: \`missing' script is too old or missing" >&5
+echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
+fi
+
+if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
+ # We used to keeping the `.' as first argument, in order to
+ # allow $(mkdir_p) to be used without argument. As in
+ # $(mkdir_p) $(somedir)
+ # where $(somedir) is conditionally defined. However this is wrong
+ # for two reasons:
+ # 1. if the package is installed by a user who cannot write `.'
+ # make install will fail,
+ # 2. the above comment should most certainly read
+ # $(mkdir_p) $(DESTDIR)$(somedir)
+ # so it does not work when $(somedir) is undefined and
+ # $(DESTDIR) is not.
+ # To support the latter case, we have to write
+ # test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
+ # so the `.' trick is pointless.
+ mkdir_p='mkdir -p --'
+else
+ # On NextStep and OpenStep, the `mkdir' command does not
+ # recognize any option. It will interpret all options as
+ # directories to create, and then abort because `.' already
+ # exists.
+ for d in ./-p ./--version;
+ do
+ test -d $d && rmdir $d
+ done
+ # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
+ if test -f "$ac_aux_dir/mkinstalldirs"; then
+ mkdir_p='$(mkinstalldirs)'
+ else
+ mkdir_p='$(install_sh) -d'
+ fi
+fi
+
+for ac_prog in gawk mawk nawk awk
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_AWK+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$AWK"; then
+ ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_AWK="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+ echo "$as_me:$LINENO: result: $AWK" >&5
+echo "${ECHO_T}$AWK" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$AWK" && break
+done
+
+echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
+set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'`
+if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.make <<\_ACEOF
+all:
+ @echo 'ac_maketemp="$(MAKE)"'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
+if test -n "$ac_maketemp"; then
+ eval ac_cv_prog_make_${ac_make}_set=yes
+else
+ eval ac_cv_prog_make_${ac_make}_set=no
+fi
+rm -f conftest.make
+fi
+if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
+ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+ SET_MAKE=
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+ SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+ am__leading_dot=.
+else
+ am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+# test to see if srcdir already configured
+if test "`cd $srcdir && pwd`" != "`pwd`" &&
+ test -f $srcdir/config.status; then
+ { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
+echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+ if (cygpath --version) >/dev/null 2>/dev/null; then
+ CYGPATH_W='cygpath -w'
+ else
+ CYGPATH_W=echo
+ fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='bison'
+ VERSION='2.3'
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+install_sh=${install_sh-"$am_aux_dir/install-sh"}
+
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'. However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_STRIP+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$STRIP"; then
+ ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+ echo "$as_me:$LINENO: result: $STRIP" >&5
+echo "${ECHO_T}$STRIP" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+ ac_ct_STRIP=$STRIP
+ # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_STRIP"; then
+ ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_STRIP="strip"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+ test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":"
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+ echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
+echo "${ECHO_T}$ac_ct_STRIP" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ STRIP=$ac_ct_STRIP
+else
+ STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+
+# We need awk for the "check" target. The system "awk" is bad on
+# some platforms.
+# Always define AMTAR for backward compatibility.
+
+AMTAR=${AMTAR-"${am_missing_run}tar"}
+
+am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
+
+
+
+
+
+ ac_config_headers="$ac_config_headers config.h:config.hin"
+
+
+
+cat >>confdefs.h <<\_ACEOF
+#define _GNU_SOURCE 1
+_ACEOF
+
+
+DEPDIR="${am__leading_dot}deps"
+
+ ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+ @echo done
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
+echo $ECHO_N "checking for style of include used by $am_make... $ECHO_C" >&6
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
+ am__include=include
+ am__quote=
+ _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+ echo '.include "confinc"' > confmf
+ if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+ am__include=.include
+ am__quote="\""
+ _am_result=BSD
+ fi
+fi
+
+
+echo "$as_me:$LINENO: result: $_am_result" >&5
+echo "${ECHO_T}$_am_result" >&6
+rm -f confinc confmf
+
+# Check whether --enable-dependency-tracking or --disable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then
+ enableval="$enable_dependency_tracking"
+
+fi;
+if test "x$enable_dependency_tracking" != xno; then
+ am_depcomp="$ac_aux_dir/depcomp"
+ AMDEPBACKSLASH='\'
+fi
+
+
+if test "x$enable_dependency_tracking" != xno; then
+ AMDEP_TRUE=
+ AMDEP_FALSE='#'
+else
+ AMDEP_TRUE='#'
+ AMDEP_FALSE=
+fi
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+fi
+if test -z "$CC"; then
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+ ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+ ac_prog_rejected=yes
+ continue
+ fi
+ ac_cv_prog_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+if test $ac_prog_rejected = yes; then
+ # We found a bogon in the path, so make sure we never use it.
+ set dummy $ac_cv_prog_CC
+ shift
+ if test $# != 0; then
+ # We chose a different compiler from the bogus one.
+ # However, it has the same basename, so the bogon will be chosen
+ # first if we set CC to just the basename; use the full file name.
+ shift
+ ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+ fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ for ac_prog in cl
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$CC" && break
+ done
+fi
+if test -z "$CC"; then
+ ac_ct_CC=$CC
+ for ac_prog in cl
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$ac_ct_CC" && break
+done
+
+ CC=$ac_ct_CC
+fi
+
+fi
+
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&5
+echo "$as_me: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+ "checking for C compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+ (eval $ac_compiler --version </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+ (eval $ac_compiler -v </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+ (eval $ac_compiler -V </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+echo "$as_me:$LINENO: checking for C compiler default output file name" >&5
+echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6
+ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
+ (eval $ac_link_default) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; then
+ # Find the output, starting from the most likely. This scheme is
+# not robust to junk in `.', hence go to wildcards (a.*) only as a last
+# resort.
+
+# Be careful to initialize this variable, since it used to be cached.
+# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
+ac_cv_exeext=
+# b.out is created by i960 compilers.
+for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out
+do
+ test -f "$ac_file" || continue
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj )
+ ;;
+ conftest.$ac_ext )
+ # This is the source file.
+ ;;
+ [ab].out )
+ # We found the default executable, but exeext='' is most
+ # certainly right.
+ break;;
+ *.* )
+ ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+ # FIXME: I believe we export ac_cv_exeext for Libtool,
+ # but it would be cool to find out if it's true. Does anybody
+ # maintain Libtool? --akim.
+ export ac_cv_exeext
+ break;;
+ * )
+ break;;
+ esac
+done
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { echo "$as_me:$LINENO: error: C compiler cannot create executables
+See \`config.log' for more details." >&5
+echo "$as_me: error: C compiler cannot create executables
+See \`config.log' for more details." >&2;}
+ { (exit 77); exit 77; }; }
+fi
+
+ac_exeext=$ac_cv_exeext
+echo "$as_me:$LINENO: result: $ac_file" >&5
+echo "${ECHO_T}$ac_file" >&6
+
+# Check the compiler produces executables we can run. If not, either
+# the compiler is broken, or we cross compile.
+echo "$as_me:$LINENO: checking whether the C compiler works" >&5
+echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6
+# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
+# If not cross compiling, check that we can run a simple program.
+if test "$cross_compiling" != yes; then
+ if { ac_try='./$ac_file'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cross_compiling=no
+ else
+ if test "$cross_compiling" = maybe; then
+ cross_compiling=yes
+ else
+ { { echo "$as_me:$LINENO: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+ fi
+fi
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+rm -f a.out a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+# Check the compiler produces executables we can run. If not, either
+# the compiler is broken, or we cross compile.
+echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
+echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
+echo "$as_me:$LINENO: result: $cross_compiling" >&5
+echo "${ECHO_T}$cross_compiling" >&6
+
+echo "$as_me:$LINENO: checking for suffix of executables" >&5
+echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; then
+ # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+ test -f "$ac_file" || continue
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
+ *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+ export ac_cv_exeext
+ break;;
+ * ) break;;
+ esac
+done
+else
+ { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest$ac_cv_exeext
+echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
+echo "${ECHO_T}$ac_cv_exeext" >&6
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+echo "$as_me:$LINENO: checking for suffix of object files" >&5
+echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
+if test "${ac_cv_objext+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; then
+ for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
+ *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+ break;;
+ esac
+done
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
+echo "${ECHO_T}$ac_cv_objext" >&6
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
+if test "${ac_cv_c_compiler_gnu+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+#ifndef __GNUC__
+ choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_compiler_gnu=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
+GCC=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+CFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_g+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_g=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cc_g=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
+if test "$ac_test_CFLAGS" = set; then
+ CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+ if test "$GCC" = yes; then
+ CFLAGS="-g -O2"
+ else
+ CFLAGS="-g"
+ fi
+else
+ if test "$GCC" = yes; then
+ CFLAGS="-O2"
+ else
+ CFLAGS=
+ fi
+fi
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
+echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_stdc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
+ function prototypes and stuff, but not '\xHH' hex character constants.
+ These don't provoke an error unfortunately, instead are silently treated
+ as 'x'. The following induces an error, until -std1 is added to get
+ proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
+ array size at least. It's necessary to write '\x00'==0 to get something
+ that's true only with -std1. */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+ ;
+ return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX -qlanglvl=ansi
+# Ultrix and OSF/1 -std1
+# HP-UX 10.20 and later -Ae
+# HP-UX older versions -Aa -D_HPUX_SOURCE
+# SVR4 -Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$ac_save_CC $ac_arg"
+ rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+ x|xno)
+ echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+ *)
+ echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
+ CC="$CC $ac_cv_prog_cc_stdc" ;;
+esac
+
+# Some people use a C++ compiler to compile C. Since we use `exit',
+# in C++ we need to declare it. In case someone uses the same compiler
+# for both compiling C and C++ we need to have the C++ compiler decide
+# the declaration of exit, since it's the most demanding environment.
+cat >conftest.$ac_ext <<_ACEOF
+#ifndef __cplusplus
+ choke me
+#endif
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ for ac_declaration in \
+ '' \
+ 'extern "C" void std::exit (int) throw (); using std::exit;' \
+ 'extern "C" void std::exit (int); using std::exit;' \
+ 'extern "C" void exit (int) throw ();' \
+ 'extern "C" void exit (int);' \
+ 'void exit (int);'
+do
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+#include <stdlib.h>
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+ echo '#ifdef __cplusplus' >>confdefs.h
+ echo $ac_declaration >>confdefs.h
+ echo '#endif' >>confdefs.h
+fi
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CC" am_compiler_list=
+
+echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
+if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+ # We make a subdir and do the tests there. Otherwise we can end up
+ # making bogus files that we don't know about and never remove. For
+ # instance it was reported that on HP-UX the gcc test will end up
+ # making a dummy file named `D' -- because `-MD' means `put the output
+ # in D'.
+ mkdir conftest.dir
+ # Copy depcomp to subdir because otherwise we won't find it if we're
+ # using a relative directory.
+ cp "$am_depcomp" conftest.dir
+ cd conftest.dir
+ # We will build objects and dependencies in a subdirectory because
+ # it helps to detect inapplicable dependency modes. For instance
+ # both Tru64's cc and ICC support -MD to output dependencies as a
+ # side effect of compilation, but ICC will put the dependencies in
+ # the current directory while Tru64 will put them in the object
+ # directory.
+ mkdir sub
+
+ am_cv_CC_dependencies_compiler_type=none
+ if test "$am_compiler_list" = ""; then
+ am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+ fi
+ for depmode in $am_compiler_list; do
+ # Setup a source with many dependencies, because some compilers
+ # like to wrap large dependency lists on column 80 (with \), and
+ # we should not choose a depcomp mode which is confused by this.
+ #
+ # We need to recreate these files for each test, as the compiler may
+ # overwrite some of them when testing with obscure command lines.
+ # This happens at least with the AIX C compiler.
+ : > sub/conftest.c
+ for i in 1 2 3 4 5 6; do
+ echo '#include "conftst'$i'.h"' >> sub/conftest.c
+ # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+ # Solaris 8's {/usr,}/bin/sh.
+ touch sub/conftst$i.h
+ done
+ echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+ case $depmode in
+ nosideeffect)
+ # after this tag, mechanisms are not by side-effect, so they'll
+ # only be used when explicitly requested
+ if test "x$enable_dependency_tracking" = xyes; then
+ continue
+ else
+ break
+ fi
+ ;;
+ none) break ;;
+ esac
+ # We check with `-c' and `-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
+ # handle `-M -o', and we need to detect this.
+ if depmode=$depmode \
+ source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+ depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+ $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+ >/dev/null 2>conftest.err &&
+ grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+ grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+ ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+ # icc doesn't choke on unknown options, it will just issue warnings
+ # or remarks (even with -Werror). So we grep stderr for any message
+ # that says an option was ignored or not supported.
+ # When given -MP, icc 7.0 and 7.1 complain thusly:
+ # icc: Command line warning: ignoring option '-M'; no argument required
+ # The diagnosis changed in icc 8.0:
+ # icc: Command line remark: option '-MP' not supported
+ if (grep 'ignoring option' conftest.err ||
+ grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+ am_cv_CC_dependencies_compiler_type=$depmode
+ break
+ fi
+ fi
+ done
+
+ cd ..
+ rm -rf conftest.dir
+else
+ am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CC_dependencies_compiler_type" >&6
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+
+
+if
+ test "x$enable_dependency_tracking" != xno \
+ && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+ am__fastdepCC_TRUE=
+ am__fastdepCC_FALSE='#'
+else
+ am__fastdepCC_TRUE='#'
+ am__fastdepCC_FALSE=
+fi
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
+echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+ CPP=
+fi
+if test -z "$CPP"; then
+ if test "${ac_cv_prog_CPP+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ # Double quotes because CPP needs to be expanded
+ for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+ do
+ ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether non-existent headers
+ # can be detected and how.
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ # Broken: success on invalid input.
+continue
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+ break
+fi
+
+ done
+ ac_cv_prog_CPP=$CPP
+
+fi
+ CPP=$ac_cv_prog_CPP
+else
+ ac_cv_prog_CPP=$CPP
+fi
+echo "$as_me:$LINENO: result: $CPP" >&5
+echo "${ECHO_T}$CPP" >&6
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether non-existent headers
+ # can be detected and how.
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ # Broken: success on invalid input.
+continue
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+ :
+else
+ { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." >&5
+echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+echo "$as_me:$LINENO: checking for egrep" >&5
+echo $ECHO_N "checking for egrep... $ECHO_C" >&6
+if test "${ac_cv_prog_egrep+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if echo a | (grep -E '(a|b)') >/dev/null 2>&1
+ then ac_cv_prog_egrep='grep -E'
+ else ac_cv_prog_egrep='egrep'
+ fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
+echo "${ECHO_T}$ac_cv_prog_egrep" >&6
+ EGREP=$ac_cv_prog_egrep
+
+
+
+echo "$as_me:$LINENO: checking for AIX" >&5
+echo $ECHO_N "checking for AIX... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#ifdef _AIX
+ yes
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "yes" >/dev/null 2>&1; then
+ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+cat >>confdefs.h <<\_ACEOF
+#define _ALL_SOURCE 1
+_ACEOF
+
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest*
+
+
+echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
+if test "${ac_cv_header_stdc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_header_stdc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_header_stdc=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+ # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "memchr" >/dev/null 2>&1; then
+ :
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "free" >/dev/null 2>&1; then
+ :
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+ if test "$cross_compiling" = yes; then
+ :
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <ctype.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+ (('a' <= (c) && (c) <= 'i') \
+ || ('j' <= (c) && (c) <= 'r') \
+ || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+ int i;
+ for (i = 0; i < 256; i++)
+ if (XOR (islower (i), ISLOWER (i))
+ || toupper (i) != TOUPPER (i))
+ exit(2);
+ exit (0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_header_stdc=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+echo "${ECHO_T}$ac_cv_header_stdc" >&6
+if test $ac_cv_header_stdc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STDC_HEADERS 1
+_ACEOF
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+
+
+
+
+
+
+
+
+
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+ inttypes.h stdint.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_Header=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_Header=no"
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+if test "${ac_cv_header_minix_config_h+set}" = set; then
+ echo "$as_me:$LINENO: checking for minix/config.h" >&5
+echo $ECHO_N "checking for minix/config.h... $ECHO_C" >&6
+if test "${ac_cv_header_minix_config_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_minix_config_h" >&5
+echo "${ECHO_T}$ac_cv_header_minix_config_h" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking minix/config.h usability" >&5
+echo $ECHO_N "checking minix/config.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <minix/config.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking minix/config.h presence" >&5
+echo $ECHO_N "checking minix/config.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <minix/config.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: minix/config.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: minix/config.h: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: minix/config.h: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: minix/config.h: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: minix/config.h: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: minix/config.h: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: minix/config.h: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: minix/config.h: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to bug-bison@gnu.org ##
+## -------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for minix/config.h" >&5
+echo $ECHO_N "checking for minix/config.h... $ECHO_C" >&6
+if test "${ac_cv_header_minix_config_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_header_minix_config_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_minix_config_h" >&5
+echo "${ECHO_T}$ac_cv_header_minix_config_h" >&6
+
+fi
+if test $ac_cv_header_minix_config_h = yes; then
+ MINIX=yes
+else
+ MINIX=
+fi
+
+
+if test "$MINIX" = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define _POSIX_SOURCE 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define _POSIX_1_SOURCE 2
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define _MINIX 1
+_ACEOF
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+ echo "$as_me:$LINENO: checking whether it is safe to define __EXTENSIONS__" >&5
+echo $ECHO_N "checking whether it is safe to define __EXTENSIONS__... $ECHO_C" >&6
+if test "${ac_cv_safe_to_define___extensions__+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #define __EXTENSIONS__ 1
+ $ac_includes_default
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_safe_to_define___extensions__=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_safe_to_define___extensions__=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_safe_to_define___extensions__" >&5
+echo "${ECHO_T}$ac_cv_safe_to_define___extensions__" >&6
+ test $ac_cv_safe_to_define___extensions__ = yes &&
+ cat >>confdefs.h <<\_ACEOF
+#define __EXTENSIONS__ 1
+_ACEOF
+
+ cat >>confdefs.h <<\_ACEOF
+#define _POSIX_PTHREAD_SEMANTICS 1
+_ACEOF
+
+
+
+# Checks for the compiler.
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+fi
+if test -z "$CC"; then
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+ ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+ ac_prog_rejected=yes
+ continue
+ fi
+ ac_cv_prog_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+if test $ac_prog_rejected = yes; then
+ # We found a bogon in the path, so make sure we never use it.
+ set dummy $ac_cv_prog_CC
+ shift
+ if test $# != 0; then
+ # We chose a different compiler from the bogus one.
+ # However, it has the same basename, so the bogon will be chosen
+ # first if we set CC to just the basename; use the full file name.
+ shift
+ ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+ fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ for ac_prog in cl
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$CC" && break
+ done
+fi
+if test -z "$CC"; then
+ ac_ct_CC=$CC
+ for ac_prog in cl
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$ac_ct_CC" && break
+done
+
+ CC=$ac_ct_CC
+fi
+
+fi
+
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&5
+echo "$as_me: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+ "checking for C compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+ (eval $ac_compiler --version </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+ (eval $ac_compiler -v </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+ (eval $ac_compiler -V </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+
+echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
+if test "${ac_cv_c_compiler_gnu+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+#ifndef __GNUC__
+ choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_compiler_gnu=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
+GCC=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+CFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_g+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_g=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cc_g=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
+if test "$ac_test_CFLAGS" = set; then
+ CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+ if test "$GCC" = yes; then
+ CFLAGS="-g -O2"
+ else
+ CFLAGS="-g"
+ fi
+else
+ if test "$GCC" = yes; then
+ CFLAGS="-O2"
+ else
+ CFLAGS=
+ fi
+fi
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
+echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_stdc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
+ function prototypes and stuff, but not '\xHH' hex character constants.
+ These don't provoke an error unfortunately, instead are silently treated
+ as 'x'. The following induces an error, until -std1 is added to get
+ proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
+ array size at least. It's necessary to write '\x00'==0 to get something
+ that's true only with -std1. */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+ ;
+ return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX -qlanglvl=ansi
+# Ultrix and OSF/1 -std1
+# HP-UX 10.20 and later -Ae
+# HP-UX older versions -Aa -D_HPUX_SOURCE
+# SVR4 -Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$ac_save_CC $ac_arg"
+ rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+ x|xno)
+ echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+ *)
+ echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
+ CC="$CC $ac_cv_prog_cc_stdc" ;;
+esac
+
+# Some people use a C++ compiler to compile C. Since we use `exit',
+# in C++ we need to declare it. In case someone uses the same compiler
+# for both compiling C and C++ we need to have the C++ compiler decide
+# the declaration of exit, since it's the most demanding environment.
+cat >conftest.$ac_ext <<_ACEOF
+#ifndef __cplusplus
+ choke me
+#endif
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ for ac_declaration in \
+ '' \
+ 'extern "C" void std::exit (int) throw (); using std::exit;' \
+ 'extern "C" void std::exit (int); using std::exit;' \
+ 'extern "C" void exit (int) throw ();' \
+ 'extern "C" void exit (int);' \
+ 'void exit (int);'
+do
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+#include <stdlib.h>
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+ echo '#ifdef __cplusplus' >>confdefs.h
+ echo $ac_declaration >>confdefs.h
+ echo '#endif' >>confdefs.h
+fi
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CC" am_compiler_list=
+
+echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
+if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+ # We make a subdir and do the tests there. Otherwise we can end up
+ # making bogus files that we don't know about and never remove. For
+ # instance it was reported that on HP-UX the gcc test will end up
+ # making a dummy file named `D' -- because `-MD' means `put the output
+ # in D'.
+ mkdir conftest.dir
+ # Copy depcomp to subdir because otherwise we won't find it if we're
+ # using a relative directory.
+ cp "$am_depcomp" conftest.dir
+ cd conftest.dir
+ # We will build objects and dependencies in a subdirectory because
+ # it helps to detect inapplicable dependency modes. For instance
+ # both Tru64's cc and ICC support -MD to output dependencies as a
+ # side effect of compilation, but ICC will put the dependencies in
+ # the current directory while Tru64 will put them in the object
+ # directory.
+ mkdir sub
+
+ am_cv_CC_dependencies_compiler_type=none
+ if test "$am_compiler_list" = ""; then
+ am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+ fi
+ for depmode in $am_compiler_list; do
+ # Setup a source with many dependencies, because some compilers
+ # like to wrap large dependency lists on column 80 (with \), and
+ # we should not choose a depcomp mode which is confused by this.
+ #
+ # We need to recreate these files for each test, as the compiler may
+ # overwrite some of them when testing with obscure command lines.
+ # This happens at least with the AIX C compiler.
+ : > sub/conftest.c
+ for i in 1 2 3 4 5 6; do
+ echo '#include "conftst'$i'.h"' >> sub/conftest.c
+ # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+ # Solaris 8's {/usr,}/bin/sh.
+ touch sub/conftst$i.h
+ done
+ echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+ case $depmode in
+ nosideeffect)
+ # after this tag, mechanisms are not by side-effect, so they'll
+ # only be used when explicitly requested
+ if test "x$enable_dependency_tracking" = xyes; then
+ continue
+ else
+ break
+ fi
+ ;;
+ none) break ;;
+ esac
+ # We check with `-c' and `-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
+ # handle `-M -o', and we need to detect this.
+ if depmode=$depmode \
+ source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+ depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+ $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+ >/dev/null 2>conftest.err &&
+ grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+ grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+ ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+ # icc doesn't choke on unknown options, it will just issue warnings
+ # or remarks (even with -Werror). So we grep stderr for any message
+ # that says an option was ignored or not supported.
+ # When given -MP, icc 7.0 and 7.1 complain thusly:
+ # icc: Command line warning: ignoring option '-M'; no argument required
+ # The diagnosis changed in icc 8.0:
+ # icc: Command line remark: option '-MP' not supported
+ if (grep 'ignoring option' conftest.err ||
+ grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+ am_cv_CC_dependencies_compiler_type=$depmode
+ break
+ fi
+ fi
+ done
+
+ cd ..
+ rm -rf conftest.dir
+else
+ am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CC_dependencies_compiler_type" >&6
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+
+
+if
+ test "x$enable_dependency_tracking" != xno \
+ && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+ am__fastdepCC_TRUE=
+ am__fastdepCC_FALSE='#'
+else
+ am__fastdepCC_TRUE='#'
+ am__fastdepCC_FALSE=
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+fi
+if test -z "$CC"; then
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+ ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+ ac_prog_rejected=yes
+ continue
+ fi
+ ac_cv_prog_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+if test $ac_prog_rejected = yes; then
+ # We found a bogon in the path, so make sure we never use it.
+ set dummy $ac_cv_prog_CC
+ shift
+ if test $# != 0; then
+ # We chose a different compiler from the bogus one.
+ # However, it has the same basename, so the bogon will be chosen
+ # first if we set CC to just the basename; use the full file name.
+ shift
+ ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+ fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ for ac_prog in cl
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$CC" && break
+ done
+fi
+if test -z "$CC"; then
+ ac_ct_CC=$CC
+ for ac_prog in cl
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$ac_ct_CC" && break
+done
+
+ CC=$ac_ct_CC
+fi
+
+fi
+
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&5
+echo "$as_me: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+ "checking for C compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+ (eval $ac_compiler --version </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+ (eval $ac_compiler -v </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+ (eval $ac_compiler -V </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+
+echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
+if test "${ac_cv_c_compiler_gnu+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+#ifndef __GNUC__
+ choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_compiler_gnu=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
+GCC=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+CFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_g+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_g=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cc_g=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
+if test "$ac_test_CFLAGS" = set; then
+ CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+ if test "$GCC" = yes; then
+ CFLAGS="-g -O2"
+ else
+ CFLAGS="-g"
+ fi
+else
+ if test "$GCC" = yes; then
+ CFLAGS="-O2"
+ else
+ CFLAGS=
+ fi
+fi
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
+echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_stdc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
+ function prototypes and stuff, but not '\xHH' hex character constants.
+ These don't provoke an error unfortunately, instead are silently treated
+ as 'x'. The following induces an error, until -std1 is added to get
+ proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
+ array size at least. It's necessary to write '\x00'==0 to get something
+ that's true only with -std1. */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+ ;
+ return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX -qlanglvl=ansi
+# Ultrix and OSF/1 -std1
+# HP-UX 10.20 and later -Ae
+# HP-UX older versions -Aa -D_HPUX_SOURCE
+# SVR4 -Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$ac_save_CC $ac_arg"
+ rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+ x|xno)
+ echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+ *)
+ echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
+ CC="$CC $ac_cv_prog_cc_stdc" ;;
+esac
+
+# Some people use a C++ compiler to compile C. Since we use `exit',
+# in C++ we need to declare it. In case someone uses the same compiler
+# for both compiling C and C++ we need to have the C++ compiler decide
+# the declaration of exit, since it's the most demanding environment.
+cat >conftest.$ac_ext <<_ACEOF
+#ifndef __cplusplus
+ choke me
+#endif
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ for ac_declaration in \
+ '' \
+ 'extern "C" void std::exit (int) throw (); using std::exit;' \
+ 'extern "C" void std::exit (int); using std::exit;' \
+ 'extern "C" void exit (int) throw ();' \
+ 'extern "C" void exit (int);' \
+ 'void exit (int);'
+do
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+#include <stdlib.h>
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+ echo '#ifdef __cplusplus' >>confdefs.h
+ echo $ac_declaration >>confdefs.h
+ echo '#endif' >>confdefs.h
+fi
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CC" am_compiler_list=
+
+echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
+if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+ # We make a subdir and do the tests there. Otherwise we can end up
+ # making bogus files that we don't know about and never remove. For
+ # instance it was reported that on HP-UX the gcc test will end up
+ # making a dummy file named `D' -- because `-MD' means `put the output
+ # in D'.
+ mkdir conftest.dir
+ # Copy depcomp to subdir because otherwise we won't find it if we're
+ # using a relative directory.
+ cp "$am_depcomp" conftest.dir
+ cd conftest.dir
+ # We will build objects and dependencies in a subdirectory because
+ # it helps to detect inapplicable dependency modes. For instance
+ # both Tru64's cc and ICC support -MD to output dependencies as a
+ # side effect of compilation, but ICC will put the dependencies in
+ # the current directory while Tru64 will put them in the object
+ # directory.
+ mkdir sub
+
+ am_cv_CC_dependencies_compiler_type=none
+ if test "$am_compiler_list" = ""; then
+ am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+ fi
+ for depmode in $am_compiler_list; do
+ # Setup a source with many dependencies, because some compilers
+ # like to wrap large dependency lists on column 80 (with \), and
+ # we should not choose a depcomp mode which is confused by this.
+ #
+ # We need to recreate these files for each test, as the compiler may
+ # overwrite some of them when testing with obscure command lines.
+ # This happens at least with the AIX C compiler.
+ : > sub/conftest.c
+ for i in 1 2 3 4 5 6; do
+ echo '#include "conftst'$i'.h"' >> sub/conftest.c
+ # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+ # Solaris 8's {/usr,}/bin/sh.
+ touch sub/conftst$i.h
+ done
+ echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+ case $depmode in
+ nosideeffect)
+ # after this tag, mechanisms are not by side-effect, so they'll
+ # only be used when explicitly requested
+ if test "x$enable_dependency_tracking" = xyes; then
+ continue
+ else
+ break
+ fi
+ ;;
+ none) break ;;
+ esac
+ # We check with `-c' and `-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
+ # handle `-M -o', and we need to detect this.
+ if depmode=$depmode \
+ source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+ depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+ $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+ >/dev/null 2>conftest.err &&
+ grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+ grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+ ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+ # icc doesn't choke on unknown options, it will just issue warnings
+ # or remarks (even with -Werror). So we grep stderr for any message
+ # that says an option was ignored or not supported.
+ # When given -MP, icc 7.0 and 7.1 complain thusly:
+ # icc: Command line warning: ignoring option '-M'; no argument required
+ # The diagnosis changed in icc 8.0:
+ # icc: Command line remark: option '-MP' not supported
+ if (grep 'ignoring option' conftest.err ||
+ grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+ am_cv_CC_dependencies_compiler_type=$depmode
+ break
+ fi
+ fi
+ done
+
+ cd ..
+ rm -rf conftest.dir
+else
+ am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CC_dependencies_compiler_type" >&6
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+
+
+if
+ test "x$enable_dependency_tracking" != xno \
+ && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+ am__fastdepCC_TRUE=
+ am__fastdepCC_FALSE='#'
+else
+ am__fastdepCC_TRUE='#'
+ am__fastdepCC_FALSE=
+fi
+
+
+
+am_cv_prog_cc_stdc=$ac_cv_prog_cc_stdc
+
+# Check whether --enable-gcc-warnings or --disable-gcc-warnings was given.
+if test "${enable_gcc_warnings+set}" = set; then
+ enableval="$enable_gcc_warnings"
+ case "${enableval}" in
+ yes|no) ;;
+ *) { { echo "$as_me:$LINENO: error: bad value ${enableval} for gcc-warnings option" >&5
+echo "$as_me: error: bad value ${enableval} for gcc-warnings option" >&2;}
+ { (exit 1); exit 1; }; } ;;
+ esac
+else
+ enableval=no
+fi;
+if test "${enableval}" = yes; then
+ echo "$as_me:$LINENO: checking whether compiler accepts -Werror" >&5
+echo $ECHO_N "checking whether compiler accepts -Werror... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Werror"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ WERROR_CFLAGS=$WARNING_CFLAGS
+
+ WARNING_CFLAGS=
+ echo "$as_me:$LINENO: checking whether compiler accepts -W" >&5
+echo $ECHO_N "checking whether compiler accepts -W... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -W"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -W"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wall" >&5
+echo $ECHO_N "checking whether compiler accepts -Wall... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wall"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wall"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wcast-align" >&5
+echo $ECHO_N "checking whether compiler accepts -Wcast-align... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wcast-align"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wcast-align"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wcast-qual" >&5
+echo $ECHO_N "checking whether compiler accepts -Wcast-qual... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wcast-qual"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wcast-qual"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wformat" >&5
+echo $ECHO_N "checking whether compiler accepts -Wformat... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wformat"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wformat"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wwrite-strings" >&5
+echo $ECHO_N "checking whether compiler accepts -Wwrite-strings... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wwrite-strings"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wwrite-strings"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ WARNING_CXXFLAGS=$WARNING_CFLAGS
+
+ # The following warnings are not suitable for C++.
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wbad-function-cast" >&5
+echo $ECHO_N "checking whether compiler accepts -Wbad-function-cast... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wbad-function-cast"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wbad-function-cast"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wmissing-declarations" >&5
+echo $ECHO_N "checking whether compiler accepts -Wmissing-declarations... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wmissing-declarations"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wmissing-declarations"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wmissing-prototypes" >&5
+echo $ECHO_N "checking whether compiler accepts -Wmissing-prototypes... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wmissing-prototypes"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wmissing-prototypes"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wshadow" >&5
+echo $ECHO_N "checking whether compiler accepts -Wshadow... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wshadow"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wshadow"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+ echo "$as_me:$LINENO: checking whether compiler accepts -Wstrict-prototypes" >&5
+echo $ECHO_N "checking whether compiler accepts -Wstrict-prototypes... $ECHO_C" >&6
+
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Wstrict-prototypes"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+int x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ WARNING_CFLAGS="$WARNING_CFLAGS -Wstrict-prototypes"
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$ac_save_CFLAGS"
+
+cat >>confdefs.h <<\_ACEOF
+#define lint 1
+_ACEOF
+
+fi
+
+
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <limits.h>
+ int test_array[CHAR_BIT];
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { echo "$as_me:$LINENO: error: cannot compile a simple C program
+See \`config.log' for more details." >&5
+echo "$as_me: error: cannot compile a simple C program
+See \`config.log' for more details." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+# Check whether --enable-yacc or --disable-yacc was given.
+if test "${enable_yacc+set}" = set; then
+ enableval="$enable_yacc"
+
+else
+ enable_yacc=yes
+fi;
+case $enable_yacc in
+yes)
+ YACC_SCRIPT=yacc
+ YACC_LIBRARY=liby.a;;
+*)
+ YACC_SCRIPT=
+ YACC_LIBRARY=;;
+esac
+
+
+
+# Checks for programs.
+for ac_prog in flex lex
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_LEX+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$LEX"; then
+ ac_cv_prog_LEX="$LEX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_LEX="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+LEX=$ac_cv_prog_LEX
+if test -n "$LEX"; then
+ echo "$as_me:$LINENO: result: $LEX" >&5
+echo "${ECHO_T}$LEX" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$LEX" && break
+done
+test -n "$LEX" || LEX=":"
+
+if test -z "$LEXLIB"
+then
+ echo "$as_me:$LINENO: checking for yywrap in -lfl" >&5
+echo $ECHO_N "checking for yywrap in -lfl... $ECHO_C" >&6
+if test "${ac_cv_lib_fl_yywrap+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lfl $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char yywrap ();
+int
+main ()
+{
+yywrap ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_fl_yywrap=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_fl_yywrap=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_fl_yywrap" >&5
+echo "${ECHO_T}$ac_cv_lib_fl_yywrap" >&6
+if test $ac_cv_lib_fl_yywrap = yes; then
+ LEXLIB="-lfl"
+else
+ echo "$as_me:$LINENO: checking for yywrap in -ll" >&5
+echo $ECHO_N "checking for yywrap in -ll... $ECHO_C" >&6
+if test "${ac_cv_lib_l_yywrap+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-ll $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char yywrap ();
+int
+main ()
+{
+yywrap ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_l_yywrap=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_l_yywrap=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_l_yywrap" >&5
+echo "${ECHO_T}$ac_cv_lib_l_yywrap" >&6
+if test $ac_cv_lib_l_yywrap = yes; then
+ LEXLIB="-ll"
+fi
+
+fi
+
+fi
+
+if test "x$LEX" != "x:"; then
+ echo "$as_me:$LINENO: checking lex output file root" >&5
+echo $ECHO_N "checking lex output file root... $ECHO_C" >&6
+if test "${ac_cv_prog_lex_root+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ # The minimal lex program is just a single line: %%. But some broken lexes
+# (Solaris, I think it was) want two %% lines, so accommodate them.
+cat >conftest.l <<_ACEOF
+%%
+%%
+_ACEOF
+{ (eval echo "$as_me:$LINENO: \"$LEX conftest.l\"") >&5
+ (eval $LEX conftest.l) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+if test -f lex.yy.c; then
+ ac_cv_prog_lex_root=lex.yy
+elif test -f lexyy.c; then
+ ac_cv_prog_lex_root=lexyy
+else
+ { { echo "$as_me:$LINENO: error: cannot find output from $LEX; giving up" >&5
+echo "$as_me: error: cannot find output from $LEX; giving up" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_lex_root" >&5
+echo "${ECHO_T}$ac_cv_prog_lex_root" >&6
+rm -f conftest.l
+LEX_OUTPUT_ROOT=$ac_cv_prog_lex_root
+
+echo "$as_me:$LINENO: checking whether yytext is a pointer" >&5
+echo $ECHO_N "checking whether yytext is a pointer... $ECHO_C" >&6
+if test "${ac_cv_prog_lex_yytext_pointer+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ # POSIX says lex can declare yytext either as a pointer or an array; the
+# default is implementation-dependent. Figure out which it is, since
+# not all implementations provide the %pointer and %array declarations.
+ac_cv_prog_lex_yytext_pointer=no
+echo 'extern char *yytext;' >>$LEX_OUTPUT_ROOT.c
+ac_save_LIBS=$LIBS
+LIBS="$LIBS $LEXLIB"
+cat >conftest.$ac_ext <<_ACEOF
+`cat $LEX_OUTPUT_ROOT.c`
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_lex_yytext_pointer=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_save_LIBS
+rm -f "${LEX_OUTPUT_ROOT}.c"
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_lex_yytext_pointer" >&5
+echo "${ECHO_T}$ac_cv_prog_lex_yytext_pointer" >&6
+if test $ac_cv_prog_lex_yytext_pointer = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define YYTEXT_POINTER 1
+_ACEOF
+
+fi
+
+fi
+for ac_prog in 'bison -y' byacc
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_YACC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$YACC"; then
+ ac_cv_prog_YACC="$YACC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_YACC="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+YACC=$ac_cv_prog_YACC
+if test -n "$YACC"; then
+ echo "$as_me:$LINENO: result: $YACC" >&5
+echo "${ECHO_T}$YACC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$YACC" && break
+done
+test -n "$YACC" || YACC="yacc"
+
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_RANLIB+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$RANLIB"; then
+ ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+ echo "$as_me:$LINENO: result: $RANLIB" >&5
+echo "${ECHO_T}$RANLIB" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+ ac_ct_RANLIB=$RANLIB
+ # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_RANLIB"; then
+ ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_RANLIB="ranlib"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+ test -z "$ac_cv_prog_ac_ct_RANLIB" && ac_cv_prog_ac_ct_RANLIB=":"
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+ echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
+echo "${ECHO_T}$ac_ct_RANLIB" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ RANLIB=$ac_ct_RANLIB
+else
+ RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+for ac_prog in gm4 gnum4 m4
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_M4+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ case $M4 in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_M4="$M4" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_M4="$as_dir/$ac_word$ac_exec_ext"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+ ;;
+esac
+fi
+M4=$ac_cv_path_M4
+
+if test -n "$M4"; then
+ echo "$as_me:$LINENO: result: $M4" >&5
+echo "${ECHO_T}$M4" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$M4" && break
+done
+test -n "$M4" || M4="m4"
+
+echo "$as_me:$LINENO: checking whether m4 supports frozen files" >&5
+echo $ECHO_N "checking whether m4 supports frozen files... $ECHO_C" >&6
+if test "${ac_cv_prog_gnu_m4+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_prog_gnu_m4=no
+if test x"$M4" != x; then
+ case `$M4 --help < /dev/null 2>&1` in
+ *reload-state*) ac_cv_prog_gnu_m4=yes ;;
+ esac
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_gnu_m4" >&5
+echo "${ECHO_T}$ac_cv_prog_gnu_m4" >&6
+if test x"$ac_cv_prog_gnu_m4" != xyes; then
+ { { echo "$as_me:$LINENO: error: GNU M4 1.4 is required" >&5
+echo "$as_me: error: GNU M4 1.4 is required" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define M4 "$M4"
+_ACEOF
+
+
+# Checks for header files.
+
+
+
+
+
+for ac_header in $gl_header_list
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to bug-bison@gnu.org ##
+## -------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+
+
+
+
+ :
+
+
+
+
+
+echo "$as_me:$LINENO: checking for stdbool.h that conforms to C99" >&5
+echo $ECHO_N "checking for stdbool.h that conforms to C99... $ECHO_C" >&6
+if test "${ac_cv_header_stdbool_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #include <stdbool.h>
+ #ifndef bool
+ "error: bool is not defined"
+ #endif
+ #ifndef false
+ "error: false is not defined"
+ #endif
+ #if false
+ "error: false is not 0"
+ #endif
+ #ifndef true
+ "error: true is not defined"
+ #endif
+ #if true != 1
+ "error: true is not 1"
+ #endif
+ #ifndef __bool_true_false_are_defined
+ "error: __bool_true_false_are_defined is not defined"
+ #endif
+
+ struct s { _Bool s: 1; _Bool t; } s;
+
+ char a[true == 1 ? 1 : -1];
+ char b[false == 0 ? 1 : -1];
+ char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+ char d[(bool) 0.5 == true ? 1 : -1];
+ bool e = &s;
+ char f[(_Bool) 0.0 == false ? 1 : -1];
+ char g[true];
+ char h[sizeof (_Bool)];
+ char i[sizeof s.t];
+ enum { j = false, k = true, l = false * true, m = true * 256 };
+ _Bool n[m];
+ char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+ char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+ #if defined __xlc__ || defined __GNUC__
+ /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
+ reported by James Lemley on 2005-10-05; see
+ http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+ This test is not quite right, since xlc is allowed to
+ reject this program, as the initializer for xlcbug is
+ not one of the forms that C requires support for.
+ However, doing the test right would require a run-time
+ test, and that would make cross-compilation harder.
+ Let us hope that IBM fixes the xlc bug, and also adds
+ support for this kind of constant expression. In the
+ meantime, this test will reject xlc, which is OK, since
+ our stdbool.h substitute should suffice. We also test
+ this with GCC, where it should work, to detect more
+ quickly whether someone messes up the test in the
+ future. */
+ char digs[] = "0123456789";
+ int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
+ #endif
+ /* Catch a bug in an HP-UX C compiler. See
+ http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+ http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+ */
+ _Bool q = true;
+ _Bool *pq = &q;
+
+int
+main ()
+{
+
+ *pq |= q;
+ *pq |= ! q;
+ /* Refer to every declared value, to avoid compiler optimizations. */
+ return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+ + !m + !n + !o + !p + !q + !pq);
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_header_stdbool_h=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_header_stdbool_h=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_stdbool_h" >&5
+echo "${ECHO_T}$ac_cv_header_stdbool_h" >&6
+ echo "$as_me:$LINENO: checking for _Bool" >&5
+echo $ECHO_N "checking for _Bool... $ECHO_C" >&6
+if test "${ac_cv_type__Bool+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+if ((_Bool *) 0)
+ return 0;
+if (sizeof (_Bool))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type__Bool=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type__Bool=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type__Bool" >&5
+echo "${ECHO_T}$ac_cv_type__Bool" >&6
+if test $ac_cv_type__Bool = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE__BOOL 1
+_ACEOF
+
+
+fi
+
+ if test $ac_cv_header_stdbool_h = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_STDBOOL_H 1
+_ACEOF
+
+ fi
+
+
+
+ # Define two additional variables used in the Makefile substitution.
+
+ if test "$ac_cv_header_stdbool_h" = yes; then
+ STDBOOL_H=''
+ else
+ STDBOOL_H='stdbool.h'
+ fi
+
+
+ if test "$ac_cv_type__Bool" = yes; then
+ HAVE__BOOL=1
+ else
+ HAVE__BOOL=0
+ fi
+
+
+
+# Checks for compiler characteristics.
+echo "$as_me:$LINENO: checking for inline" >&5
+echo $ECHO_N "checking for inline... $ECHO_C" >&6
+if test "${ac_cv_c_inline+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_c_inline=no
+for ac_kw in inline __inline__ __inline; do
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#ifndef __cplusplus
+typedef int foo_t;
+static $ac_kw foo_t static_foo () {return 0; }
+$ac_kw foo_t foo () {return 0; }
+#endif
+
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_c_inline=$ac_kw; break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5
+echo "${ECHO_T}$ac_cv_c_inline" >&6
+
+
+case $ac_cv_c_inline in
+ inline | yes) ;;
+ *)
+ case $ac_cv_c_inline in
+ no) ac_val=;;
+ *) ac_val=$ac_cv_c_inline;;
+ esac
+ cat >>confdefs.h <<_ACEOF
+#ifndef __cplusplus
+#define inline $ac_val
+#endif
+_ACEOF
+ ;;
+esac
+
+
+# Checks for types.
+echo "$as_me:$LINENO: checking for uintptr_t" >&5
+echo $ECHO_N "checking for uintptr_t... $ECHO_C" >&6
+if test "${ac_cv_type_uintptr_t+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+if ((uintptr_t *) 0)
+ return 0;
+if (sizeof (uintptr_t))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_uintptr_t=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_uintptr_t=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_uintptr_t" >&5
+echo "${ECHO_T}$ac_cv_type_uintptr_t" >&6
+if test $ac_cv_type_uintptr_t = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_UINTPTR_T 1
+_ACEOF
+
+
+fi
+
+
+# Checks for library functions.
+
+
+
+
+
+for ac_func in $gl_func_list
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+
+
+
+
+
+ :
+
+
+
+
+
+echo "$as_me:$LINENO: checking if malloc debugging is wanted" >&5
+echo $ECHO_N "checking if malloc debugging is wanted... $ECHO_C" >&6
+
+# Check whether --with-dmalloc or --without-dmalloc was given.
+if test "${with_dmalloc+set}" = set; then
+ withval="$with_dmalloc"
+ if test "$withval" = yes; then
+ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+cat >>confdefs.h <<\_ACEOF
+#define WITH_DMALLOC 1
+_ACEOF
+
+ LIBS="$LIBS -ldmalloc"
+ LDFLAGS="$LDFLAGS -g"
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi;
+
+
+ echo "$as_me:$LINENO: checking for pid_t" >&5
+echo $ECHO_N "checking for pid_t... $ECHO_C" >&6
+if test "${ac_cv_type_pid_t+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+if ((pid_t *) 0)
+ return 0;
+if (sizeof (pid_t))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_pid_t=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_pid_t=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_pid_t" >&5
+echo "${ECHO_T}$ac_cv_type_pid_t" >&6
+if test $ac_cv_type_pid_t = yes; then
+ :
+else
+
+cat >>confdefs.h <<_ACEOF
+#define pid_t int
+_ACEOF
+
+fi
+
+ echo "$as_me:$LINENO: checking for sys/wait.h that is POSIX.1 compatible" >&5
+echo $ECHO_N "checking for sys/wait.h that is POSIX.1 compatible... $ECHO_C" >&6
+if test "${ac_cv_header_sys_wait_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <sys/types.h>
+#include <sys/wait.h>
+#ifndef WEXITSTATUS
+# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
+#endif
+#ifndef WIFEXITED
+# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
+#endif
+
+int
+main ()
+{
+ int s;
+ wait (&s);
+ s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_header_sys_wait_h=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_header_sys_wait_h=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_sys_wait_h" >&5
+echo "${ECHO_T}$ac_cv_header_sys_wait_h" >&6
+if test $ac_cv_header_sys_wait_h = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SYS_WAIT_H 1
+_ACEOF
+
+fi
+
+
+
+for ac_func in dup2 waitpid
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+
+for ac_header in unistd.h vfork.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to bug-bison@gnu.org ##
+## -------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+for ac_func in fork vfork
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+if test "x$ac_cv_func_fork" = xyes; then
+ echo "$as_me:$LINENO: checking for working fork" >&5
+echo $ECHO_N "checking for working fork... $ECHO_C" >&6
+if test "${ac_cv_func_fork_works+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_func_fork_works=cross
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* By Ruediger Kuhlmann. */
+ #include <sys/types.h>
+ #if HAVE_UNISTD_H
+ # include <unistd.h>
+ #endif
+ /* Some systems only have a dummy stub for fork() */
+ int main ()
+ {
+ if (fork() < 0)
+ exit (1);
+ exit (0);
+ }
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_fork_works=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_func_fork_works=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_fork_works" >&5
+echo "${ECHO_T}$ac_cv_func_fork_works" >&6
+
+else
+ ac_cv_func_fork_works=$ac_cv_func_fork
+fi
+if test "x$ac_cv_func_fork_works" = xcross; then
+ case $host in
+ *-*-amigaos* | *-*-msdosdjgpp*)
+ # Override, as these systems have only a dummy fork() stub
+ ac_cv_func_fork_works=no
+ ;;
+ *)
+ ac_cv_func_fork_works=yes
+ ;;
+ esac
+ { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&5
+echo "$as_me: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&2;}
+fi
+ac_cv_func_vfork_works=$ac_cv_func_vfork
+if test "x$ac_cv_func_vfork" = xyes; then
+ echo "$as_me:$LINENO: checking for working vfork" >&5
+echo $ECHO_N "checking for working vfork... $ECHO_C" >&6
+if test "${ac_cv_func_vfork_works+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_func_vfork_works=cross
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Thanks to Paul Eggert for this test. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#if HAVE_VFORK_H
+# include <vfork.h>
+#endif
+/* On some sparc systems, changes by the child to local and incoming
+ argument registers are propagated back to the parent. The compiler
+ is told about this with #include <vfork.h>, but some compilers
+ (e.g. gcc -O) don't grok <vfork.h>. Test for this by using a
+ static variable whose address is put into a register that is
+ clobbered by the vfork. */
+static void
+#ifdef __cplusplus
+sparc_address_test (int arg)
+# else
+sparc_address_test (arg) int arg;
+#endif
+{
+ static pid_t child;
+ if (!child) {
+ child = vfork ();
+ if (child < 0) {
+ perror ("vfork");
+ _exit(2);
+ }
+ if (!child) {
+ arg = getpid();
+ write(-1, "", 0);
+ _exit (arg);
+ }
+ }
+}
+
+int
+main ()
+{
+ pid_t parent = getpid ();
+ pid_t child;
+
+ sparc_address_test (0);
+
+ child = vfork ();
+
+ if (child == 0) {
+ /* Here is another test for sparc vfork register problems. This
+ test uses lots of local variables, at least as many local
+ variables as main has allocated so far including compiler
+ temporaries. 4 locals are enough for gcc 1.40.3 on a Solaris
+ 4.1.3 sparc, but we use 8 to be safe. A buggy compiler should
+ reuse the register of parent for one of the local variables,
+ since it will think that parent can't possibly be used any more
+ in this routine. Assigning to the local variable will thus
+ munge parent in the parent process. */
+ pid_t
+ p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(),
+ p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid();
+ /* Convince the compiler that p..p7 are live; otherwise, it might
+ use the same hardware register for all 8 local variables. */
+ if (p != p1 || p != p2 || p != p3 || p != p4
+ || p != p5 || p != p6 || p != p7)
+ _exit(1);
+
+ /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent
+ from child file descriptors. If the child closes a descriptor
+ before it execs or exits, this munges the parent's descriptor
+ as well. Test for this by closing stdout in the child. */
+ _exit(close(fileno(stdout)) != 0);
+ } else {
+ int status;
+ struct stat st;
+
+ while (wait(&status) != child)
+ ;
+ exit(
+ /* Was there some problem with vforking? */
+ child < 0
+
+ /* Did the child fail? (This shouldn't happen.) */
+ || status
+
+ /* Did the vfork/compiler bug occur? */
+ || parent != getpid()
+
+ /* Did the file descriptor bug occur? */
+ || fstat(fileno(stdout), &st) != 0
+ );
+ }
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_vfork_works=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_func_vfork_works=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_vfork_works" >&5
+echo "${ECHO_T}$ac_cv_func_vfork_works" >&6
+
+fi;
+if test "x$ac_cv_func_fork_works" = xcross; then
+ ac_cv_func_vfork_works=$ac_cv_func_vfork
+ { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&5
+echo "$as_me: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&2;}
+fi
+
+if test "x$ac_cv_func_vfork_works" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_WORKING_VFORK 1
+_ACEOF
+
+else
+
+cat >>confdefs.h <<\_ACEOF
+#define vfork fork
+_ACEOF
+
+fi
+if test "x$ac_cv_func_fork_works" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_WORKING_FORK 1
+_ACEOF
+
+fi
+
+
+
+
+for ac_header in sys/time.h sys/times.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to bug-bison@gnu.org ##
+## -------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+for ac_header in sys/resource.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+
+
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_Header=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_Header=no"
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+for ac_func in times
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+echo "$as_me:$LINENO: checking whether getrusage is declared" >&5
+echo $ECHO_N "checking whether getrusage is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_getrusage+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
+
+int
+main ()
+{
+#ifndef getrusage
+ char *p = (char *) getrusage;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_getrusage=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_getrusage=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_getrusage" >&5
+echo "${ECHO_T}$ac_cv_have_decl_getrusage" >&6
+if test $ac_cv_have_decl_getrusage = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETRUSAGE 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETRUSAGE 0
+_ACEOF
+
+
+fi
+echo "$as_me:$LINENO: checking whether times is declared" >&5
+echo $ECHO_N "checking whether times is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_times+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
+
+int
+main ()
+{
+#ifndef times
+ char *p = (char *) times;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_times=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_times=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_times" >&5
+echo "${ECHO_T}$ac_cv_have_decl_times" >&6
+if test $ac_cv_have_decl_times = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_TIMES 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_TIMES 0
+_ACEOF
+
+
+fi
+echo "$as_me:$LINENO: checking whether clock is declared" >&5
+echo $ECHO_N "checking whether clock is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_clock+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
+
+int
+main ()
+{
+#ifndef clock
+ char *p = (char *) clock;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_clock=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_clock=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_clock" >&5
+echo "${ECHO_T}$ac_cv_have_decl_clock" >&6
+if test $ac_cv_have_decl_clock = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_CLOCK 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_CLOCK 0
+_ACEOF
+
+
+fi
+echo "$as_me:$LINENO: checking whether sysconf is declared" >&5
+echo $ECHO_N "checking whether sysconf is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_sysconf+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
+
+int
+main ()
+{
+#ifndef sysconf
+ char *p = (char *) sysconf;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_sysconf=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_sysconf=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_sysconf" >&5
+echo "${ECHO_T}$ac_cv_have_decl_sysconf" >&6
+if test $ac_cv_have_decl_sysconf = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SYSCONF 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SYSCONF 0
+_ACEOF
+
+
+fi
+
+
+
+echo "$as_me:$LINENO: checking for clock_t" >&5
+echo $ECHO_N "checking for clock_t... $ECHO_C" >&6
+if test "${ac_cv_type_clock_t+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
+
+int
+main ()
+{
+if ((clock_t *) 0)
+ return 0;
+if (sizeof (clock_t))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_clock_t=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_clock_t=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_clock_t" >&5
+echo "${ECHO_T}$ac_cv_type_clock_t" >&6
+if test $ac_cv_type_clock_t = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_CLOCK_T 1
+_ACEOF
+
+
+fi
+echo "$as_me:$LINENO: checking for struct tms" >&5
+echo $ECHO_N "checking for struct tms... $ECHO_C" >&6
+if test "${ac_cv_type_struct_tms+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
+
+int
+main ()
+{
+if ((struct tms *) 0)
+ return 0;
+if (sizeof (struct tms))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_struct_tms=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_struct_tms=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_struct_tms" >&5
+echo "${ECHO_T}$ac_cv_type_struct_tms" >&6
+if test $ac_cv_type_struct_tms = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STRUCT_TMS 1
+_ACEOF
+
+
+fi
+
+
+
+# gnulib and gettext.
+
+ echo "$as_me:$LINENO: checking whether system is Windows or MSDOS" >&5
+echo $ECHO_N "checking whether system is Windows or MSDOS... $ECHO_C" >&6
+if test "${ac_cv_win_or_dos+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
+neither MSDOS nor Windows
+#endif
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_win_or_dos=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_win_or_dos=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_win_or_dos" >&5
+echo "${ECHO_T}$ac_cv_win_or_dos" >&6
+
+ if test x"$ac_cv_win_or_dos" = xyes; then
+ ac_fs_accepts_drive_letter_prefix=1
+ ac_fs_backslash_is_file_name_separator=1
+ else
+ ac_fs_accepts_drive_letter_prefix=0
+ ac_fs_backslash_is_file_name_separator=0
+ fi
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX $ac_fs_accepts_drive_letter_prefix
+_ACEOF
+
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR $ac_fs_backslash_is_file_name_separator
+_ACEOF
+
+
+echo "$as_me:$LINENO: checking whether strerror_r is declared" >&5
+echo $ECHO_N "checking whether strerror_r is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strerror_r+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strerror_r
+ char *p = (char *) strerror_r;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_strerror_r=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_strerror_r=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strerror_r" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strerror_r" >&6
+if test $ac_cv_have_decl_strerror_r = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR_R 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR_R 0
+_ACEOF
+
+
+fi
+
+
+
+for ac_func in strerror_r
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+echo "$as_me:$LINENO: checking whether strerror_r returns char *" >&5
+echo $ECHO_N "checking whether strerror_r returns char *... $ECHO_C" >&6
+if test "${ac_cv_func_strerror_r_char_p+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ ac_cv_func_strerror_r_char_p=no
+ if test $ac_cv_have_decl_strerror_r = yes; then
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+
+ char buf[100];
+ char x = *strerror_r (0, buf, sizeof buf);
+ char *p = strerror_r (0, buf, sizeof buf);
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_strerror_r_char_p=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ else
+ # strerror_r is not declared. Choose between
+ # systems that have relatively inaccessible declarations for the
+ # function. BeOS and DEC UNIX 4.0 fall in this category, but the
+ # former has a strerror_r that returns char*, while the latter
+ # has a strerror_r that returns `int'.
+ # This test should segfault on the DEC system.
+ if test "$cross_compiling" = yes; then
+ :
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+ extern char *strerror_r ();
+int
+main ()
+{
+char buf[100];
+ char x = *strerror_r (0, buf, sizeof buf);
+ exit (!isalpha (x));
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_strerror_r_char_p=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+ fi
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_strerror_r_char_p" >&5
+echo "${ECHO_T}$ac_cv_func_strerror_r_char_p" >&6
+if test $ac_cv_func_strerror_r_char_p = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STRERROR_R_CHAR_P 1
+_ACEOF
+
+fi
+
+
+ if test -z "$GETOPT_H"; then
+
+for ac_header in getopt.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to bug-bison@gnu.org ##
+## -------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ GETOPT_H=getopt.h
+fi
+
+done
+
+ fi
+
+ if test -z "$GETOPT_H"; then
+
+for ac_func in getopt_long_only
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ GETOPT_H=getopt.h
+fi
+done
+
+ fi
+
+ if test -z "$GETOPT_H"; then
+ echo "$as_me:$LINENO: checking whether optreset is declared" >&5
+echo $ECHO_N "checking whether optreset is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_optreset+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <getopt.h>
+
+int
+main ()
+{
+#ifndef optreset
+ char *p = (char *) optreset;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_optreset=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_optreset=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_optreset" >&5
+echo "${ECHO_T}$ac_cv_have_decl_optreset" >&6
+if test $ac_cv_have_decl_optreset = yes; then
+ GETOPT_H=getopt.h
+fi
+
+ fi
+
+ if test -z "$GETOPT_H"; then
+ echo "$as_me:$LINENO: checking for working GNU getopt function" >&5
+echo $ECHO_N "checking for working GNU getopt function... $ECHO_C" >&6
+if test "${gl_cv_func_gnu_getopt+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ echo "$as_me:$LINENO: checking whether getopt_clip is declared" >&5
+echo $ECHO_N "checking whether getopt_clip is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_getopt_clip+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <getopt.h>
+
+int
+main ()
+{
+#ifndef getopt_clip
+ char *p = (char *) getopt_clip;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_getopt_clip=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_getopt_clip=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_getopt_clip" >&5
+echo "${ECHO_T}$ac_cv_have_decl_getopt_clip" >&6
+if test $ac_cv_have_decl_getopt_clip = yes; then
+ gl_cv_func_gnu_getopt=no
+else
+ gl_cv_func_gnu_getopt=yes
+fi
+
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <getopt.h>
+int
+main ()
+{
+
+ char *myargv[3];
+ myargv[0] = "conftest";
+ myargv[1] = "-+";
+ myargv[2] = 0;
+ return getopt (2, myargv, "+a") != '?';
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gl_cv_func_gnu_getopt=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+gl_cv_func_gnu_getopt=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $gl_cv_func_gnu_getopt" >&5
+echo "${ECHO_T}$gl_cv_func_gnu_getopt" >&6
+ if test "$gl_cv_func_gnu_getopt" = "no"; then
+ GETOPT_H=getopt.h
+ fi
+ fi
+
+
+ echo "$as_me:$LINENO: checking whether getenv is declared" >&5
+echo $ECHO_N "checking whether getenv is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_getenv+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef getenv
+ char *p = (char *) getenv;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_getenv=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_getenv=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_getenv" >&5
+echo "${ECHO_T}$ac_cv_have_decl_getenv" >&6
+if test $ac_cv_have_decl_getenv = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETENV 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETENV 0
+_ACEOF
+
+
+fi
+
+
+
+
+
+ MKINSTALLDIRS=
+ if test -n "$ac_aux_dir"; then
+ case "$ac_aux_dir" in
+ /*) MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs" ;;
+ *) MKINSTALLDIRS="\$(top_builddir)/$ac_aux_dir/mkinstalldirs" ;;
+ esac
+ fi
+ if test -z "$MKINSTALLDIRS"; then
+ MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
+ fi
+
+
+
+ echo "$as_me:$LINENO: checking whether NLS is requested" >&5
+echo $ECHO_N "checking whether NLS is requested... $ECHO_C" >&6
+ # Check whether --enable-nls or --disable-nls was given.
+if test "${enable_nls+set}" = set; then
+ enableval="$enable_nls"
+ USE_NLS=$enableval
+else
+ USE_NLS=yes
+fi;
+ echo "$as_me:$LINENO: result: $USE_NLS" >&5
+echo "${ECHO_T}$USE_NLS" >&6
+
+
+
+
+
+
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+# Find out how to test for executable files. Don't use a zero-byte file,
+# as systems may use methods other than mode bits to determine executability.
+cat >conf$$.file <<_ASEOF
+#! /bin/sh
+exit 0
+_ASEOF
+chmod +x conf$$.file
+if test -x conf$$.file >/dev/null 2>&1; then
+ ac_executable_p="test -x"
+else
+ ac_executable_p="test -f"
+fi
+rm -f conf$$.file
+
+# Extract the first word of "msgfmt", so it can be a program name with args.
+set dummy msgfmt; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_MSGFMT+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ case "$MSGFMT" in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_MSGFMT="$MSGFMT" # Let the user override the test with a path.
+ ;;
+ *)
+ ac_save_IFS="$IFS"; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH; do
+ IFS="$ac_save_IFS"
+ test -z "$ac_dir" && ac_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then
+ echo "$as_me: trying $ac_dir/$ac_word..." >&5
+ if $ac_dir/$ac_word --statistics /dev/null >&5 2>&1 &&
+ (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
+ ac_cv_path_MSGFMT="$ac_dir/$ac_word$ac_exec_ext"
+ break 2
+ fi
+ fi
+ done
+ done
+ IFS="$ac_save_IFS"
+ test -z "$ac_cv_path_MSGFMT" && ac_cv_path_MSGFMT=":"
+ ;;
+esac
+fi
+MSGFMT="$ac_cv_path_MSGFMT"
+if test "$MSGFMT" != ":"; then
+ echo "$as_me:$LINENO: result: $MSGFMT" >&5
+echo "${ECHO_T}$MSGFMT" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ # Extract the first word of "gmsgfmt", so it can be a program name with args.
+set dummy gmsgfmt; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_GMSGFMT+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ case $GMSGFMT in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_GMSGFMT="$GMSGFMT" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_GMSGFMT="$as_dir/$ac_word$ac_exec_ext"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+ test -z "$ac_cv_path_GMSGFMT" && ac_cv_path_GMSGFMT="$MSGFMT"
+ ;;
+esac
+fi
+GMSGFMT=$ac_cv_path_GMSGFMT
+
+if test -n "$GMSGFMT"; then
+ echo "$as_me:$LINENO: result: $GMSGFMT" >&5
+echo "${ECHO_T}$GMSGFMT" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+
+
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+# Find out how to test for executable files. Don't use a zero-byte file,
+# as systems may use methods other than mode bits to determine executability.
+cat >conf$$.file <<_ASEOF
+#! /bin/sh
+exit 0
+_ASEOF
+chmod +x conf$$.file
+if test -x conf$$.file >/dev/null 2>&1; then
+ ac_executable_p="test -x"
+else
+ ac_executable_p="test -f"
+fi
+rm -f conf$$.file
+
+# Extract the first word of "xgettext", so it can be a program name with args.
+set dummy xgettext; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_XGETTEXT+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ case "$XGETTEXT" in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_XGETTEXT="$XGETTEXT" # Let the user override the test with a path.
+ ;;
+ *)
+ ac_save_IFS="$IFS"; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH; do
+ IFS="$ac_save_IFS"
+ test -z "$ac_dir" && ac_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then
+ echo "$as_me: trying $ac_dir/$ac_word..." >&5
+ if $ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >&5 2>&1 &&
+ (if $ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
+ ac_cv_path_XGETTEXT="$ac_dir/$ac_word$ac_exec_ext"
+ break 2
+ fi
+ fi
+ done
+ done
+ IFS="$ac_save_IFS"
+ test -z "$ac_cv_path_XGETTEXT" && ac_cv_path_XGETTEXT=":"
+ ;;
+esac
+fi
+XGETTEXT="$ac_cv_path_XGETTEXT"
+if test "$XGETTEXT" != ":"; then
+ echo "$as_me:$LINENO: result: $XGETTEXT" >&5
+echo "${ECHO_T}$XGETTEXT" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ rm -f messages.po
+
+
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+# Find out how to test for executable files. Don't use a zero-byte file,
+# as systems may use methods other than mode bits to determine executability.
+cat >conf$$.file <<_ASEOF
+#! /bin/sh
+exit 0
+_ASEOF
+chmod +x conf$$.file
+if test -x conf$$.file >/dev/null 2>&1; then
+ ac_executable_p="test -x"
+else
+ ac_executable_p="test -f"
+fi
+rm -f conf$$.file
+
+# Extract the first word of "msgmerge", so it can be a program name with args.
+set dummy msgmerge; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_MSGMERGE+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ case "$MSGMERGE" in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_MSGMERGE="$MSGMERGE" # Let the user override the test with a path.
+ ;;
+ *)
+ ac_save_IFS="$IFS"; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH; do
+ IFS="$ac_save_IFS"
+ test -z "$ac_dir" && ac_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then
+ echo "$as_me: trying $ac_dir/$ac_word..." >&5
+ if $ac_dir/$ac_word --update -q /dev/null /dev/null >&5 2>&1; then
+ ac_cv_path_MSGMERGE="$ac_dir/$ac_word$ac_exec_ext"
+ break 2
+ fi
+ fi
+ done
+ done
+ IFS="$ac_save_IFS"
+ test -z "$ac_cv_path_MSGMERGE" && ac_cv_path_MSGMERGE=":"
+ ;;
+esac
+fi
+MSGMERGE="$ac_cv_path_MSGMERGE"
+if test "$MSGMERGE" != ":"; then
+ echo "$as_me:$LINENO: result: $MSGMERGE" >&5
+echo "${ECHO_T}$MSGMERGE" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+
+ if test "$GMSGFMT" != ":"; then
+ if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 &&
+ (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
+ : ;
+ else
+ GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'`
+ echo "$as_me:$LINENO: result: found $GMSGFMT program is not GNU msgfmt; ignore it" >&5
+echo "${ECHO_T}found $GMSGFMT program is not GNU msgfmt; ignore it" >&6
+ GMSGFMT=":"
+ fi
+ fi
+
+ if test "$XGETTEXT" != ":"; then
+ if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >/dev/null 2>&1 &&
+ (if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
+ : ;
+ else
+ echo "$as_me:$LINENO: result: found xgettext program is not GNU xgettext; ignore it" >&5
+echo "${ECHO_T}found xgettext program is not GNU xgettext; ignore it" >&6
+ XGETTEXT=":"
+ fi
+ rm -f messages.po
+ fi
+
+ ac_config_commands="$ac_config_commands default-1"
+
+
+
+ if test "X$prefix" = "XNONE"; then
+ acl_final_prefix="$ac_default_prefix"
+ else
+ acl_final_prefix="$prefix"
+ fi
+ if test "X$exec_prefix" = "XNONE"; then
+ acl_final_exec_prefix='${prefix}'
+ else
+ acl_final_exec_prefix="$exec_prefix"
+ fi
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
+ prefix="$acl_save_prefix"
+
+# Make sure we can run config.sub.
+$ac_config_sub sun4 >/dev/null 2>&1 ||
+ { { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5
+echo "$as_me: error: cannot run $ac_config_sub" >&2;}
+ { (exit 1); exit 1; }; }
+
+echo "$as_me:$LINENO: checking build system type" >&5
+echo $ECHO_N "checking build system type... $ECHO_C" >&6
+if test "${ac_cv_build+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_build_alias=$build_alias
+test -z "$ac_cv_build_alias" &&
+ ac_cv_build_alias=`$ac_config_guess`
+test -z "$ac_cv_build_alias" &&
+ { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
+echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
+ { (exit 1); exit 1; }; }
+ac_cv_build=`$ac_config_sub $ac_cv_build_alias` ||
+ { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_build_alias failed" >&5
+echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed" >&2;}
+ { (exit 1); exit 1; }; }
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+echo "${ECHO_T}$ac_cv_build" >&6
+build=$ac_cv_build
+build_cpu=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+build_vendor=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+build_os=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+
+
+echo "$as_me:$LINENO: checking host system type" >&5
+echo $ECHO_N "checking host system type... $ECHO_C" >&6
+if test "${ac_cv_host+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_host_alias=$host_alias
+test -z "$ac_cv_host_alias" &&
+ ac_cv_host_alias=$ac_cv_build_alias
+ac_cv_host=`$ac_config_sub $ac_cv_host_alias` ||
+ { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_host_alias failed" >&5
+echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;}
+ { (exit 1); exit 1; }; }
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_host" >&5
+echo "${ECHO_T}$ac_cv_host" >&6
+host=$ac_cv_host
+host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+
+
+
+# Check whether --with-gnu-ld or --without-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then
+ withval="$with_gnu_ld"
+ test "$withval" = no || with_gnu_ld=yes
+else
+ with_gnu_ld=no
+fi;
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+ac_prog=ld
+if test "$GCC" = yes; then
+ # Check if gcc -print-prog-name=ld gives a path.
+ echo "$as_me:$LINENO: checking for ld used by GCC" >&5
+echo $ECHO_N "checking for ld used by GCC... $ECHO_C" >&6
+ case $host in
+ *-*-mingw*)
+ # gcc leaves a trailing carriage return which upsets mingw
+ ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+ *)
+ ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+ esac
+ case $ac_prog in
+ # Accept absolute paths.
+ [\\/]* | [A-Za-z]:[\\/]*)
+ re_direlt='/[^/][^/]*/\.\./'
+ # Canonicalize the path of ld
+ ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
+ while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+ ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
+ done
+ test -z "$LD" && LD="$ac_prog"
+ ;;
+ "")
+ # If it fails, then pretend we aren't using GCC.
+ ac_prog=ld
+ ;;
+ *)
+ # If it is relative, then search for the first ld in PATH.
+ with_gnu_ld=unknown
+ ;;
+ esac
+elif test "$with_gnu_ld" = yes; then
+ echo "$as_me:$LINENO: checking for GNU ld" >&5
+echo $ECHO_N "checking for GNU ld... $ECHO_C" >&6
+else
+ echo "$as_me:$LINENO: checking for non-GNU ld" >&5
+echo $ECHO_N "checking for non-GNU ld... $ECHO_C" >&6
+fi
+if test "${acl_cv_path_LD+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -z "$LD"; then
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+ for ac_dir in $PATH; do
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+ acl_cv_path_LD="$ac_dir/$ac_prog"
+ # Check to see if the program is GNU ld. I'd rather use --version,
+ # but apparently some GNU ld's only accept -v.
+ # Break only if it was the GNU/non-GNU ld that we prefer.
+ case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
+ *GNU* | *'with BFD'*)
+ test "$with_gnu_ld" != no && break ;;
+ *)
+ test "$with_gnu_ld" != yes && break ;;
+ esac
+ fi
+ done
+ IFS="$ac_save_ifs"
+else
+ acl_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$acl_cv_path_LD"
+if test -n "$LD"; then
+ echo "$as_me:$LINENO: result: $LD" >&5
+echo "${ECHO_T}$LD" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+test -z "$LD" && { { echo "$as_me:$LINENO: error: no acceptable ld found in \$PATH" >&5
+echo "$as_me: error: no acceptable ld found in \$PATH" >&2;}
+ { (exit 1); exit 1; }; }
+echo "$as_me:$LINENO: checking if the linker ($LD) is GNU ld" >&5
+echo $ECHO_N "checking if the linker ($LD) is GNU ld... $ECHO_C" >&6
+if test "${acl_cv_prog_gnu_ld+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ # I'd rather use --version here, but apparently some GNU ld's only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+ acl_cv_prog_gnu_ld=yes ;;
+*)
+ acl_cv_prog_gnu_ld=no ;;
+esac
+fi
+echo "$as_me:$LINENO: result: $acl_cv_prog_gnu_ld" >&5
+echo "${ECHO_T}$acl_cv_prog_gnu_ld" >&6
+with_gnu_ld=$acl_cv_prog_gnu_ld
+
+
+
+
+ echo "$as_me:$LINENO: checking for shared library run path origin" >&5
+echo $ECHO_N "checking for shared library run path origin... $ECHO_C" >&6
+if test "${acl_cv_rpath+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
+ ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
+ . ./conftest.sh
+ rm -f ./conftest.sh
+ acl_cv_rpath=done
+
+fi
+echo "$as_me:$LINENO: result: $acl_cv_rpath" >&5
+echo "${ECHO_T}$acl_cv_rpath" >&6
+ wl="$acl_cv_wl"
+ libext="$acl_cv_libext"
+ shlibext="$acl_cv_shlibext"
+ hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
+ hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
+ hardcode_direct="$acl_cv_hardcode_direct"
+ hardcode_minus_L="$acl_cv_hardcode_minus_L"
+ # Check whether --enable-rpath or --disable-rpath was given.
+if test "${enable_rpath+set}" = set; then
+ enableval="$enable_rpath"
+ :
+else
+ enable_rpath=yes
+fi;
+
+
+ acl_libdirstem=lib
+ searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
+ if test -n "$searchpath"; then
+ acl_save_IFS="${IFS= }"; IFS=":"
+ for searchdir in $searchpath; do
+ if test -d "$searchdir"; then
+ case "$searchdir" in
+ */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
+ *) searchdir=`cd "$searchdir" && pwd`
+ case "$searchdir" in
+ */lib64 ) acl_libdirstem=lib64 ;;
+ esac ;;
+ esac
+ fi
+ done
+ IFS="$acl_save_IFS"
+ fi
+
+
+
+
+
+
+
+
+ use_additional=yes
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+
+# Check whether --with-libiconv-prefix or --without-libiconv-prefix was given.
+if test "${with_libiconv_prefix+set}" = set; then
+ withval="$with_libiconv_prefix"
+
+ if test "X$withval" = "Xno"; then
+ use_additional=no
+ else
+ if test "X$withval" = "X"; then
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ else
+ additional_includedir="$withval/include"
+ additional_libdir="$withval/$acl_libdirstem"
+ fi
+ fi
+
+fi;
+ LIBICONV=
+ LTLIBICONV=
+ INCICONV=
+ rpathdirs=
+ ltrpathdirs=
+ names_already_handled=
+ names_next_round='iconv '
+ while test -n "$names_next_round"; do
+ names_this_round="$names_next_round"
+ names_next_round=
+ for name in $names_this_round; do
+ already_handled=
+ for n in $names_already_handled; do
+ if test "$n" = "$name"; then
+ already_handled=yes
+ break
+ fi
+ done
+ if test -z "$already_handled"; then
+ names_already_handled="$names_already_handled $name"
+ uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
+ eval value=\"\$HAVE_LIB$uppername\"
+ if test -n "$value"; then
+ if test "$value" = yes; then
+ eval value=\"\$LIB$uppername\"
+ test -z "$value" || LIBICONV="${LIBICONV}${LIBICONV:+ }$value"
+ eval value=\"\$LTLIB$uppername\"
+ test -z "$value" || LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }$value"
+ else
+ :
+ fi
+ else
+ found_dir=
+ found_la=
+ found_so=
+ found_a=
+ if test $use_additional = yes; then
+ if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then
+ found_dir="$additional_libdir"
+ found_so="$additional_libdir/lib$name.$shlibext"
+ if test -f "$additional_libdir/lib$name.la"; then
+ found_la="$additional_libdir/lib$name.la"
+ fi
+ else
+ if test -f "$additional_libdir/lib$name.$libext"; then
+ found_dir="$additional_libdir"
+ found_a="$additional_libdir/lib$name.$libext"
+ if test -f "$additional_libdir/lib$name.la"; then
+ found_la="$additional_libdir/lib$name.la"
+ fi
+ fi
+ fi
+ fi
+ if test "X$found_dir" = "X"; then
+ for x in $LDFLAGS $LTLIBICONV; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ case "$x" in
+ -L*)
+ dir=`echo "X$x" | sed -e 's/^X-L//'`
+ if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then
+ found_dir="$dir"
+ found_so="$dir/lib$name.$shlibext"
+ if test -f "$dir/lib$name.la"; then
+ found_la="$dir/lib$name.la"
+ fi
+ else
+ if test -f "$dir/lib$name.$libext"; then
+ found_dir="$dir"
+ found_a="$dir/lib$name.$libext"
+ if test -f "$dir/lib$name.la"; then
+ found_la="$dir/lib$name.la"
+ fi
+ fi
+ fi
+ ;;
+ esac
+ if test "X$found_dir" != "X"; then
+ break
+ fi
+ done
+ fi
+ if test "X$found_dir" != "X"; then
+ LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-L$found_dir -l$name"
+ if test "X$found_so" != "X"; then
+ if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/$acl_libdirstem"; then
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+ else
+ haveit=
+ for x in $ltrpathdirs; do
+ if test "X$x" = "X$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ ltrpathdirs="$ltrpathdirs $found_dir"
+ fi
+ if test "$hardcode_direct" = yes; then
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+ else
+ if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+ haveit=
+ for x in $rpathdirs; do
+ if test "X$x" = "X$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ rpathdirs="$rpathdirs $found_dir"
+ fi
+ else
+ haveit=
+ for x in $LDFLAGS $LIBICONV; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-L$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ LIBICONV="${LIBICONV}${LIBICONV:+ }-L$found_dir"
+ fi
+ if test "$hardcode_minus_L" != no; then
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$found_so"
+ else
+ LIBICONV="${LIBICONV}${LIBICONV:+ }-l$name"
+ fi
+ fi
+ fi
+ fi
+ else
+ if test "X$found_a" != "X"; then
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$found_a"
+ else
+ LIBICONV="${LIBICONV}${LIBICONV:+ }-L$found_dir -l$name"
+ fi
+ fi
+ additional_includedir=
+ case "$found_dir" in
+ */$acl_libdirstem | */$acl_libdirstem/)
+ basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
+ additional_includedir="$basedir/include"
+ ;;
+ esac
+ if test "X$additional_includedir" != "X"; then
+ if test "X$additional_includedir" != "X/usr/include"; then
+ haveit=
+ if test "X$additional_includedir" = "X/usr/local/include"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ for x in $CPPFLAGS $INCICONV; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-I$additional_includedir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_includedir"; then
+ INCICONV="${INCICONV}${INCICONV:+ }-I$additional_includedir"
+ fi
+ fi
+ fi
+ fi
+ fi
+ if test -n "$found_la"; then
+ save_libdir="$libdir"
+ case "$found_la" in
+ */* | *\\*) . "$found_la" ;;
+ *) . "./$found_la" ;;
+ esac
+ libdir="$save_libdir"
+ for dep in $dependency_libs; do
+ case "$dep" in
+ -L*)
+ additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
+ if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
+ haveit=
+ if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ haveit=
+ for x in $LDFLAGS $LIBICONV; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-L$additional_libdir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_libdir"; then
+ LIBICONV="${LIBICONV}${LIBICONV:+ }-L$additional_libdir"
+ fi
+ fi
+ haveit=
+ for x in $LDFLAGS $LTLIBICONV; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-L$additional_libdir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_libdir"; then
+ LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-L$additional_libdir"
+ fi
+ fi
+ fi
+ fi
+ ;;
+ -R*)
+ dir=`echo "X$dep" | sed -e 's/^X-R//'`
+ if test "$enable_rpath" != no; then
+ haveit=
+ for x in $rpathdirs; do
+ if test "X$x" = "X$dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ rpathdirs="$rpathdirs $dir"
+ fi
+ haveit=
+ for x in $ltrpathdirs; do
+ if test "X$x" = "X$dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ ltrpathdirs="$ltrpathdirs $dir"
+ fi
+ fi
+ ;;
+ -l*)
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
+ ;;
+ *.la)
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
+ ;;
+ *)
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$dep"
+ LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }$dep"
+ ;;
+ esac
+ done
+ fi
+ else
+ LIBICONV="${LIBICONV}${LIBICONV:+ }-l$name"
+ LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-l$name"
+ fi
+ fi
+ fi
+ done
+ done
+ if test "X$rpathdirs" != "X"; then
+ if test -n "$hardcode_libdir_separator"; then
+ alldirs=
+ for found_dir in $rpathdirs; do
+ alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
+ done
+ acl_save_libdir="$libdir"
+ libdir="$alldirs"
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ libdir="$acl_save_libdir"
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$flag"
+ else
+ for found_dir in $rpathdirs; do
+ acl_save_libdir="$libdir"
+ libdir="$found_dir"
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ libdir="$acl_save_libdir"
+ LIBICONV="${LIBICONV}${LIBICONV:+ }$flag"
+ done
+ fi
+ fi
+ if test "X$ltrpathdirs" != "X"; then
+ for found_dir in $ltrpathdirs; do
+ LTLIBICONV="${LTLIBICONV}${LTLIBICONV:+ }-R$found_dir"
+ done
+ fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ echo "$as_me:$LINENO: checking for inttypes.h" >&5
+echo $ECHO_N "checking for inttypes.h... $ECHO_C" >&6
+if test "${gl_cv_header_inttypes_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <sys/types.h>
+#include <inttypes.h>
+int
+main ()
+{
+uintmax_t i = (uintmax_t) -1;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gl_cv_header_inttypes_h=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gl_cv_header_inttypes_h=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $gl_cv_header_inttypes_h" >&5
+echo "${ECHO_T}$gl_cv_header_inttypes_h" >&6
+ if test $gl_cv_header_inttypes_h = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_INTTYPES_H_WITH_UINTMAX 1
+_ACEOF
+
+ fi
+
+
+ echo "$as_me:$LINENO: checking for stdint.h" >&5
+echo $ECHO_N "checking for stdint.h... $ECHO_C" >&6
+if test "${gl_cv_header_stdint_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <sys/types.h>
+#include <stdint.h>
+int
+main ()
+{
+uintmax_t i = (uintmax_t) -1;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gl_cv_header_stdint_h=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gl_cv_header_stdint_h=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $gl_cv_header_stdint_h" >&5
+echo "${ECHO_T}$gl_cv_header_stdint_h" >&6
+ if test $gl_cv_header_stdint_h = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STDINT_H_WITH_UINTMAX 1
+_ACEOF
+
+ fi
+
+
+ echo "$as_me:$LINENO: checking for unsigned long long" >&5
+echo $ECHO_N "checking for unsigned long long... $ECHO_C" >&6
+if test "${ac_cv_type_unsigned_long_long+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+unsigned long long ull = 1ULL; int i = 63;
+int
+main ()
+{
+unsigned long long ullmax = (unsigned long long) -1;
+ return ull << i | ull >> i | ullmax / ull | ullmax % ull;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_unsigned_long_long=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_unsigned_long_long=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_unsigned_long_long" >&5
+echo "${ECHO_T}$ac_cv_type_unsigned_long_long" >&6
+ if test $ac_cv_type_unsigned_long_long = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_UNSIGNED_LONG_LONG 1
+_ACEOF
+
+ fi
+
+
+
+
+ if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then
+
+ test $ac_cv_type_unsigned_long_long = yes \
+ && ac_type='unsigned long long' \
+ || ac_type='unsigned long'
+
+cat >>confdefs.h <<_ACEOF
+#define uintmax_t $ac_type
+_ACEOF
+
+ else
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_UINTMAX_T 1
+_ACEOF
+
+ fi
+
+
+ echo "$as_me:$LINENO: checking whether strdup is declared" >&5
+echo $ECHO_N "checking whether strdup is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strdup+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strdup
+ char *p = (char *) strdup;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_strdup=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_strdup=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strdup" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strdup" >&6
+if test $ac_cv_have_decl_strdup = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRDUP 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRDUP 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether strndup is declared" >&5
+echo $ECHO_N "checking whether strndup is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strndup+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strndup
+ char *p = (char *) strndup;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_strndup=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_strndup=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strndup" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strndup" >&6
+if test $ac_cv_have_decl_strndup = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRNDUP 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRNDUP 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether strnlen is declared" >&5
+echo $ECHO_N "checking whether strnlen is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strnlen+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strnlen
+ char *p = (char *) strnlen;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_strnlen=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_strnlen=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strnlen" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strnlen" >&6
+if test $ac_cv_have_decl_strnlen = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRNLEN 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRNLEN 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether clearerr_unlocked is declared" >&5
+echo $ECHO_N "checking whether clearerr_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_clearerr_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef clearerr_unlocked
+ char *p = (char *) clearerr_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_clearerr_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_clearerr_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_clearerr_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_clearerr_unlocked" >&6
+if test $ac_cv_have_decl_clearerr_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_CLEARERR_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_CLEARERR_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether feof_unlocked is declared" >&5
+echo $ECHO_N "checking whether feof_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_feof_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef feof_unlocked
+ char *p = (char *) feof_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_feof_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_feof_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_feof_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_feof_unlocked" >&6
+if test $ac_cv_have_decl_feof_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FEOF_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FEOF_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether ferror_unlocked is declared" >&5
+echo $ECHO_N "checking whether ferror_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_ferror_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef ferror_unlocked
+ char *p = (char *) ferror_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_ferror_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_ferror_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_ferror_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_ferror_unlocked" >&6
+if test $ac_cv_have_decl_ferror_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FERROR_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FERROR_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether fflush_unlocked is declared" >&5
+echo $ECHO_N "checking whether fflush_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_fflush_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef fflush_unlocked
+ char *p = (char *) fflush_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_fflush_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_fflush_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_fflush_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_fflush_unlocked" >&6
+if test $ac_cv_have_decl_fflush_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FFLUSH_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FFLUSH_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether fgets_unlocked is declared" >&5
+echo $ECHO_N "checking whether fgets_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_fgets_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef fgets_unlocked
+ char *p = (char *) fgets_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_fgets_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_fgets_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_fgets_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_fgets_unlocked" >&6
+if test $ac_cv_have_decl_fgets_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FGETS_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FGETS_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether fputc_unlocked is declared" >&5
+echo $ECHO_N "checking whether fputc_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_fputc_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef fputc_unlocked
+ char *p = (char *) fputc_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_fputc_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_fputc_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_fputc_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_fputc_unlocked" >&6
+if test $ac_cv_have_decl_fputc_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FPUTC_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FPUTC_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether fputs_unlocked is declared" >&5
+echo $ECHO_N "checking whether fputs_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_fputs_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef fputs_unlocked
+ char *p = (char *) fputs_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_fputs_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_fputs_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_fputs_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_fputs_unlocked" >&6
+if test $ac_cv_have_decl_fputs_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FPUTS_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FPUTS_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether fread_unlocked is declared" >&5
+echo $ECHO_N "checking whether fread_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_fread_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef fread_unlocked
+ char *p = (char *) fread_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_fread_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_fread_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_fread_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_fread_unlocked" >&6
+if test $ac_cv_have_decl_fread_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FREAD_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FREAD_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether fwrite_unlocked is declared" >&5
+echo $ECHO_N "checking whether fwrite_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_fwrite_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef fwrite_unlocked
+ char *p = (char *) fwrite_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_fwrite_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_fwrite_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_fwrite_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_fwrite_unlocked" >&6
+if test $ac_cv_have_decl_fwrite_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FWRITE_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FWRITE_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether getc_unlocked is declared" >&5
+echo $ECHO_N "checking whether getc_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_getc_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef getc_unlocked
+ char *p = (char *) getc_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_getc_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_getc_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_getc_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_getc_unlocked" >&6
+if test $ac_cv_have_decl_getc_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETC_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETC_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether getchar_unlocked is declared" >&5
+echo $ECHO_N "checking whether getchar_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_getchar_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef getchar_unlocked
+ char *p = (char *) getchar_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_getchar_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_getchar_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_getchar_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_getchar_unlocked" >&6
+if test $ac_cv_have_decl_getchar_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETCHAR_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETCHAR_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether putc_unlocked is declared" >&5
+echo $ECHO_N "checking whether putc_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_putc_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef putc_unlocked
+ char *p = (char *) putc_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_putc_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_putc_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_putc_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_putc_unlocked" >&6
+if test $ac_cv_have_decl_putc_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PUTC_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PUTC_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether putchar_unlocked is declared" >&5
+echo $ECHO_N "checking whether putchar_unlocked is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_putchar_unlocked+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+#ifndef putchar_unlocked
+ char *p = (char *) putchar_unlocked;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_putchar_unlocked=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_putchar_unlocked=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_putchar_unlocked" >&5
+echo "${ECHO_T}$ac_cv_have_decl_putchar_unlocked" >&6
+if test $ac_cv_have_decl_putchar_unlocked = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PUTCHAR_UNLOCKED 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PUTCHAR_UNLOCKED 0
+_ACEOF
+
+
+fi
+
+
+
+
+
+
+
+ case $LIBOBJS in
+ "dirname.$ac_objext" | \
+ *" dirname.$ac_objext" | \
+ "dirname.$ac_objext "* | \
+ *" dirname.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS dirname.$ac_objext" ;;
+esac
+
+
+
+
+
+
+
+ echo "$as_me:$LINENO: checking for error_at_line" >&5
+echo $ECHO_N "checking for error_at_line... $ECHO_C" >&6
+if test "${ac_cv_lib_error_at_line+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+error_at_line (0, 0, "", 0, "");
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_error_at_line=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_error_at_line=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_error_at_line" >&5
+echo "${ECHO_T}$ac_cv_lib_error_at_line" >&6
+if test $ac_cv_lib_error_at_line = no; then
+ case $LIBOBJS in
+ "error.$ac_objext" | \
+ *" error.$ac_objext" | \
+ "error.$ac_objext "* | \
+ *" error.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS error.$ac_objext" ;;
+esac
+
+fi
+
+
+
+ :
+
+
+
+
+
+
+ case $LIBOBJS in
+ "exitfail.$ac_objext" | \
+ *" exitfail.$ac_objext" | \
+ "exitfail.$ac_objext "* | \
+ *" exitfail.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS exitfail.$ac_objext" ;;
+esac
+
+
+ :
+
+
+
+
+
+ if test -n "$GETOPT_H"; then
+
+ case $LIBOBJS in
+ "getopt.$ac_objext" | \
+ *" getopt.$ac_objext" | \
+ "getopt.$ac_objext "* | \
+ *" getopt.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS getopt.$ac_objext" ;;
+esac
+
+ case $LIBOBJS in
+ "getopt1.$ac_objext" | \
+ *" getopt1.$ac_objext" | \
+ "getopt1.$ac_objext "* | \
+ *" getopt1.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS getopt1.$ac_objext" ;;
+esac
+
+
+ GETOPT_H=getopt.h
+
+cat >>confdefs.h <<\_ACEOF
+#define __GETOPT_PREFIX rpl_
+_ACEOF
+
+
+
+
+
+ :
+
+
+
+
+
+
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ echo "$as_me:$LINENO: checking for CFPreferencesCopyAppValue" >&5
+echo $ECHO_N "checking for CFPreferencesCopyAppValue... $ECHO_C" >&6
+if test "${gt_cv_func_CFPreferencesCopyAppValue+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ gt_save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers"
+ gt_save_LIBS="$LIBS"
+ LIBS="$LIBS -framework CoreFoundation"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <CFPreferences.h>
+int
+main ()
+{
+CFPreferencesCopyAppValue(NULL, NULL)
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gt_cv_func_CFPreferencesCopyAppValue=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gt_cv_func_CFPreferencesCopyAppValue=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ CPPFLAGS="$gt_save_CPPFLAGS"
+ LIBS="$gt_save_LIBS"
+fi
+echo "$as_me:$LINENO: result: $gt_cv_func_CFPreferencesCopyAppValue" >&5
+echo "${ECHO_T}$gt_cv_func_CFPreferencesCopyAppValue" >&6
+ if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_CFPREFERENCESCOPYAPPVALUE 1
+_ACEOF
+
+ fi
+ echo "$as_me:$LINENO: checking for CFLocaleCopyCurrent" >&5
+echo $ECHO_N "checking for CFLocaleCopyCurrent... $ECHO_C" >&6
+if test "${gt_cv_func_CFLocaleCopyCurrent+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ gt_save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers"
+ gt_save_LIBS="$LIBS"
+ LIBS="$LIBS -framework CoreFoundation"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <CFLocale.h>
+int
+main ()
+{
+CFLocaleCopyCurrent();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gt_cv_func_CFLocaleCopyCurrent=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gt_cv_func_CFLocaleCopyCurrent=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ CPPFLAGS="$gt_save_CPPFLAGS"
+ LIBS="$gt_save_LIBS"
+fi
+echo "$as_me:$LINENO: result: $gt_cv_func_CFLocaleCopyCurrent" >&5
+echo "${ECHO_T}$gt_cv_func_CFLocaleCopyCurrent" >&6
+ if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_CFLOCALECOPYCURRENT 1
+_ACEOF
+
+ fi
+ INTL_MACOSX_LIBS=
+ if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+ INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+ fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether NLS is requested" >&5
+echo $ECHO_N "checking whether NLS is requested... $ECHO_C" >&6
+ # Check whether --enable-nls or --disable-nls was given.
+if test "${enable_nls+set}" = set; then
+ enableval="$enable_nls"
+ USE_NLS=$enableval
+else
+ USE_NLS=yes
+fi;
+ echo "$as_me:$LINENO: result: $USE_NLS" >&5
+echo "${ECHO_T}$USE_NLS" >&6
+
+
+
+
+ LIBINTL=
+ LTLIBINTL=
+ POSUB=
+
+ if test "$USE_NLS" = "yes"; then
+ gt_use_preinstalled_gnugettext=no
+
+
+
+
+
+
+ echo "$as_me:$LINENO: checking for GNU gettext in libc" >&5
+echo $ECHO_N "checking for GNU gettext in libc... $ECHO_C" >&6
+if test "${gt_cv_func_gnugettext1_libc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <libintl.h>
+extern int _nl_msg_cat_cntr;
+extern int *_nl_domain_bindings;
+int
+main ()
+{
+bindtextdomain ("", "");
+return * gettext ("") + _nl_msg_cat_cntr + *_nl_domain_bindings
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gt_cv_func_gnugettext1_libc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gt_cv_func_gnugettext1_libc=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $gt_cv_func_gnugettext1_libc" >&5
+echo "${ECHO_T}$gt_cv_func_gnugettext1_libc" >&6
+
+ if test "$gt_cv_func_gnugettext1_libc" != "yes"; then
+
+
+
+
+
+ am_save_CPPFLAGS="$CPPFLAGS"
+
+ for element in $INCICONV; do
+ haveit=
+ for x in $CPPFLAGS; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X$element"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
+ fi
+ done
+
+
+ echo "$as_me:$LINENO: checking for iconv" >&5
+echo $ECHO_N "checking for iconv... $ECHO_C" >&6
+if test "${am_cv_func_iconv+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+ am_cv_func_iconv="no, consider installing GNU libiconv"
+ am_cv_lib_iconv=no
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+ iconv(cd,NULL,NULL,NULL,NULL);
+ iconv_close(cd);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ am_cv_func_iconv=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ if test "$am_cv_func_iconv" != yes; then
+ am_save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBICONV"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+ iconv(cd,NULL,NULL,NULL,NULL);
+ iconv_close(cd);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ am_cv_lib_iconv=yes
+ am_cv_func_iconv=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ LIBS="$am_save_LIBS"
+ fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_func_iconv" >&5
+echo "${ECHO_T}$am_cv_func_iconv" >&6
+ if test "$am_cv_func_iconv" = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_ICONV 1
+_ACEOF
+
+ fi
+ if test "$am_cv_lib_iconv" = yes; then
+ echo "$as_me:$LINENO: checking how to link with libiconv" >&5
+echo $ECHO_N "checking how to link with libiconv... $ECHO_C" >&6
+ echo "$as_me:$LINENO: result: $LIBICONV" >&5
+echo "${ECHO_T}$LIBICONV" >&6
+ else
+ CPPFLAGS="$am_save_CPPFLAGS"
+ LIBICONV=
+ LTLIBICONV=
+ fi
+
+
+
+
+
+
+
+ use_additional=yes
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+
+# Check whether --with-libintl-prefix or --without-libintl-prefix was given.
+if test "${with_libintl_prefix+set}" = set; then
+ withval="$with_libintl_prefix"
+
+ if test "X$withval" = "Xno"; then
+ use_additional=no
+ else
+ if test "X$withval" = "X"; then
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ else
+ additional_includedir="$withval/include"
+ additional_libdir="$withval/$acl_libdirstem"
+ fi
+ fi
+
+fi;
+ LIBINTL=
+ LTLIBINTL=
+ INCINTL=
+ rpathdirs=
+ ltrpathdirs=
+ names_already_handled=
+ names_next_round='intl '
+ while test -n "$names_next_round"; do
+ names_this_round="$names_next_round"
+ names_next_round=
+ for name in $names_this_round; do
+ already_handled=
+ for n in $names_already_handled; do
+ if test "$n" = "$name"; then
+ already_handled=yes
+ break
+ fi
+ done
+ if test -z "$already_handled"; then
+ names_already_handled="$names_already_handled $name"
+ uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
+ eval value=\"\$HAVE_LIB$uppername\"
+ if test -n "$value"; then
+ if test "$value" = yes; then
+ eval value=\"\$LIB$uppername\"
+ test -z "$value" || LIBINTL="${LIBINTL}${LIBINTL:+ }$value"
+ eval value=\"\$LTLIB$uppername\"
+ test -z "$value" || LTLIBINTL="${LTLIBINTL}${LTLIBINTL:+ }$value"
+ else
+ :
+ fi
+ else
+ found_dir=
+ found_la=
+ found_so=
+ found_a=
+ if test $use_additional = yes; then
+ if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then
+ found_dir="$additional_libdir"
+ found_so="$additional_libdir/lib$name.$shlibext"
+ if test -f "$additional_libdir/lib$name.la"; then
+ found_la="$additional_libdir/lib$name.la"
+ fi
+ else
+ if test -f "$additional_libdir/lib$name.$libext"; then
+ found_dir="$additional_libdir"
+ found_a="$additional_libdir/lib$name.$libext"
+ if test -f "$additional_libdir/lib$name.la"; then
+ found_la="$additional_libdir/lib$name.la"
+ fi
+ fi
+ fi
+ fi
+ if test "X$found_dir" = "X"; then
+ for x in $LDFLAGS $LTLIBINTL; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ case "$x" in
+ -L*)
+ dir=`echo "X$x" | sed -e 's/^X-L//'`
+ if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then
+ found_dir="$dir"
+ found_so="$dir/lib$name.$shlibext"
+ if test -f "$dir/lib$name.la"; then
+ found_la="$dir/lib$name.la"
+ fi
+ else
+ if test -f "$dir/lib$name.$libext"; then
+ found_dir="$dir"
+ found_a="$dir/lib$name.$libext"
+ if test -f "$dir/lib$name.la"; then
+ found_la="$dir/lib$name.la"
+ fi
+ fi
+ fi
+ ;;
+ esac
+ if test "X$found_dir" != "X"; then
+ break
+ fi
+ done
+ fi
+ if test "X$found_dir" != "X"; then
+ LTLIBINTL="${LTLIBINTL}${LTLIBINTL:+ }-L$found_dir -l$name"
+ if test "X$found_so" != "X"; then
+ if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/$acl_libdirstem"; then
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$found_so"
+ else
+ haveit=
+ for x in $ltrpathdirs; do
+ if test "X$x" = "X$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ ltrpathdirs="$ltrpathdirs $found_dir"
+ fi
+ if test "$hardcode_direct" = yes; then
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$found_so"
+ else
+ if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$found_so"
+ haveit=
+ for x in $rpathdirs; do
+ if test "X$x" = "X$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ rpathdirs="$rpathdirs $found_dir"
+ fi
+ else
+ haveit=
+ for x in $LDFLAGS $LIBINTL; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-L$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ LIBINTL="${LIBINTL}${LIBINTL:+ }-L$found_dir"
+ fi
+ if test "$hardcode_minus_L" != no; then
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$found_so"
+ else
+ LIBINTL="${LIBINTL}${LIBINTL:+ }-l$name"
+ fi
+ fi
+ fi
+ fi
+ else
+ if test "X$found_a" != "X"; then
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$found_a"
+ else
+ LIBINTL="${LIBINTL}${LIBINTL:+ }-L$found_dir -l$name"
+ fi
+ fi
+ additional_includedir=
+ case "$found_dir" in
+ */$acl_libdirstem | */$acl_libdirstem/)
+ basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
+ additional_includedir="$basedir/include"
+ ;;
+ esac
+ if test "X$additional_includedir" != "X"; then
+ if test "X$additional_includedir" != "X/usr/include"; then
+ haveit=
+ if test "X$additional_includedir" = "X/usr/local/include"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ for x in $CPPFLAGS $INCINTL; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-I$additional_includedir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_includedir"; then
+ INCINTL="${INCINTL}${INCINTL:+ }-I$additional_includedir"
+ fi
+ fi
+ fi
+ fi
+ fi
+ if test -n "$found_la"; then
+ save_libdir="$libdir"
+ case "$found_la" in
+ */* | *\\*) . "$found_la" ;;
+ *) . "./$found_la" ;;
+ esac
+ libdir="$save_libdir"
+ for dep in $dependency_libs; do
+ case "$dep" in
+ -L*)
+ additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
+ if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
+ haveit=
+ if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ haveit=
+ for x in $LDFLAGS $LIBINTL; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-L$additional_libdir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_libdir"; then
+ LIBINTL="${LIBINTL}${LIBINTL:+ }-L$additional_libdir"
+ fi
+ fi
+ haveit=
+ for x in $LDFLAGS $LTLIBINTL; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X-L$additional_libdir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_libdir"; then
+ LTLIBINTL="${LTLIBINTL}${LTLIBINTL:+ }-L$additional_libdir"
+ fi
+ fi
+ fi
+ fi
+ ;;
+ -R*)
+ dir=`echo "X$dep" | sed -e 's/^X-R//'`
+ if test "$enable_rpath" != no; then
+ haveit=
+ for x in $rpathdirs; do
+ if test "X$x" = "X$dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ rpathdirs="$rpathdirs $dir"
+ fi
+ haveit=
+ for x in $ltrpathdirs; do
+ if test "X$x" = "X$dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ ltrpathdirs="$ltrpathdirs $dir"
+ fi
+ fi
+ ;;
+ -l*)
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
+ ;;
+ *.la)
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
+ ;;
+ *)
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$dep"
+ LTLIBINTL="${LTLIBINTL}${LTLIBINTL:+ }$dep"
+ ;;
+ esac
+ done
+ fi
+ else
+ LIBINTL="${LIBINTL}${LIBINTL:+ }-l$name"
+ LTLIBINTL="${LTLIBINTL}${LTLIBINTL:+ }-l$name"
+ fi
+ fi
+ fi
+ done
+ done
+ if test "X$rpathdirs" != "X"; then
+ if test -n "$hardcode_libdir_separator"; then
+ alldirs=
+ for found_dir in $rpathdirs; do
+ alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
+ done
+ acl_save_libdir="$libdir"
+ libdir="$alldirs"
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ libdir="$acl_save_libdir"
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$flag"
+ else
+ for found_dir in $rpathdirs; do
+ acl_save_libdir="$libdir"
+ libdir="$found_dir"
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ libdir="$acl_save_libdir"
+ LIBINTL="${LIBINTL}${LIBINTL:+ }$flag"
+ done
+ fi
+ fi
+ if test "X$ltrpathdirs" != "X"; then
+ for found_dir in $ltrpathdirs; do
+ LTLIBINTL="${LTLIBINTL}${LTLIBINTL:+ }-R$found_dir"
+ done
+ fi
+
+ echo "$as_me:$LINENO: checking for GNU gettext in libintl" >&5
+echo $ECHO_N "checking for GNU gettext in libintl... $ECHO_C" >&6
+if test "${gt_cv_func_gnugettext1_libintl+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ gt_save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $INCINTL"
+ gt_save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBINTL"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <libintl.h>
+extern int _nl_msg_cat_cntr;
+extern
+#ifdef __cplusplus
+"C"
+#endif
+const char *_nl_expand_alias (const char *);
+int
+main ()
+{
+bindtextdomain ("", "");
+return * gettext ("") + _nl_msg_cat_cntr + *_nl_expand_alias ("")
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gt_cv_func_gnugettext1_libintl=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gt_cv_func_gnugettext1_libintl=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ if test "$gt_cv_func_gnugettext1_libintl" != yes && test -n "$LIBICONV"; then
+ LIBS="$LIBS $LIBICONV"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <libintl.h>
+extern int _nl_msg_cat_cntr;
+extern
+#ifdef __cplusplus
+"C"
+#endif
+const char *_nl_expand_alias (const char *);
+int
+main ()
+{
+bindtextdomain ("", "");
+return * gettext ("") + _nl_msg_cat_cntr + *_nl_expand_alias ("")
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ LIBINTL="$LIBINTL $LIBICONV"
+ LTLIBINTL="$LTLIBINTL $LTLIBICONV"
+ gt_cv_func_gnugettext1_libintl=yes
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ fi
+ CPPFLAGS="$gt_save_CPPFLAGS"
+ LIBS="$gt_save_LIBS"
+fi
+echo "$as_me:$LINENO: result: $gt_cv_func_gnugettext1_libintl" >&5
+echo "${ECHO_T}$gt_cv_func_gnugettext1_libintl" >&6
+ fi
+
+ if test "$gt_cv_func_gnugettext1_libc" = "yes" \
+ || { test "$gt_cv_func_gnugettext1_libintl" = "yes" \
+ && test "$PACKAGE" != gettext-runtime \
+ && test "$PACKAGE" != gettext-tools; }; then
+ gt_use_preinstalled_gnugettext=yes
+ else
+ LIBINTL=
+ LTLIBINTL=
+ INCINTL=
+ fi
+
+
+
+ if test -n "$INTL_MACOSX_LIBS"; then
+ if test "$gt_use_preinstalled_gnugettext" = "yes" \
+ || test "$nls_cv_use_gnu_gettext" = "yes"; then
+ LIBINTL="$LIBINTL $INTL_MACOSX_LIBS"
+ LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS"
+ fi
+ fi
+
+ if test "$gt_use_preinstalled_gnugettext" = "yes" \
+ || test "$nls_cv_use_gnu_gettext" = "yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define ENABLE_NLS 1
+_ACEOF
+
+ else
+ USE_NLS=no
+ fi
+ fi
+
+ echo "$as_me:$LINENO: checking whether to use NLS" >&5
+echo $ECHO_N "checking whether to use NLS... $ECHO_C" >&6
+ echo "$as_me:$LINENO: result: $USE_NLS" >&5
+echo "${ECHO_T}$USE_NLS" >&6
+ if test "$USE_NLS" = "yes"; then
+ echo "$as_me:$LINENO: checking where the gettext function comes from" >&5
+echo $ECHO_N "checking where the gettext function comes from... $ECHO_C" >&6
+ if test "$gt_use_preinstalled_gnugettext" = "yes"; then
+ if test "$gt_cv_func_gnugettext1_libintl" = "yes"; then
+ gt_source="external libintl"
+ else
+ gt_source="libc"
+ fi
+ else
+ gt_source="included intl directory"
+ fi
+ echo "$as_me:$LINENO: result: $gt_source" >&5
+echo "${ECHO_T}$gt_source" >&6
+ fi
+
+ if test "$USE_NLS" = "yes"; then
+
+ if test "$gt_use_preinstalled_gnugettext" = "yes"; then
+ if test "$gt_cv_func_gnugettext1_libintl" = "yes"; then
+ echo "$as_me:$LINENO: checking how to link with libintl" >&5
+echo $ECHO_N "checking how to link with libintl... $ECHO_C" >&6
+ echo "$as_me:$LINENO: result: $LIBINTL" >&5
+echo "${ECHO_T}$LIBINTL" >&6
+
+ for element in $INCINTL; do
+ haveit=
+ for x in $CPPFLAGS; do
+
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ eval x=\"$x\"
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+
+ if test "X$x" = "X$element"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
+ fi
+ done
+
+ fi
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETTEXT 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_DCGETTEXT 1
+_ACEOF
+
+ fi
+
+ POSUB=po
+ fi
+
+
+
+ INTLLIBS="$LIBINTL"
+
+
+
+
+
+
+
+
+
+
+
+ case $LIBOBJS in
+ "hard-locale.$ac_objext" | \
+ *" hard-locale.$ac_objext" | \
+ "hard-locale.$ac_objext "* | \
+ *" hard-locale.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS hard-locale.$ac_objext" ;;
+esac
+
+
+
+
+
+ case $LIBOBJS in
+ "hash.$ac_objext" | \
+ *" hash.$ac_objext" | \
+ "hash.$ac_objext "* | \
+ *" hash.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS hash.$ac_objext" ;;
+esac
+
+
+
+
+
+
+
+for ac_header in stdlib.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to bug-bison@gnu.org ##
+## -------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+echo "$as_me:$LINENO: checking for GNU libc compatible malloc" >&5
+echo $ECHO_N "checking for GNU libc compatible malloc... $ECHO_C" >&6
+if test "${ac_cv_func_malloc_0_nonnull+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_func_malloc_0_nonnull=no
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#if STDC_HEADERS || HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+char *malloc ();
+#endif
+
+int
+main ()
+{
+exit (malloc (0) ? 0 : 1);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_malloc_0_nonnull=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_func_malloc_0_nonnull=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_malloc_0_nonnull" >&5
+echo "${ECHO_T}$ac_cv_func_malloc_0_nonnull" >&6
+if test $ac_cv_func_malloc_0_nonnull = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MALLOC 1
+_ACEOF
+
+else
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_MALLOC 0
+_ACEOF
+
+ case $LIBOBJS in
+ "malloc.$ac_objext" | \
+ *" malloc.$ac_objext" | \
+ "malloc.$ac_objext "* | \
+ *" malloc.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS malloc.$ac_objext" ;;
+esac
+
+
+cat >>confdefs.h <<\_ACEOF
+#define malloc rpl_malloc
+_ACEOF
+
+fi
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+
+
+
+
+
+
+
+for ac_func in iswcntrl wcwidth
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+ echo "$as_me:$LINENO: checking whether mbrtowc and mbstate_t are properly declared" >&5
+echo $ECHO_N "checking whether mbrtowc and mbstate_t are properly declared... $ECHO_C" >&6
+if test "${gl_cv_func_mbrtowc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <wchar.h>
+int
+main ()
+{
+wchar_t wc;
+ char const s[] = "";
+ size_t n = 1;
+ mbstate_t state;
+ return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gl_cv_func_mbrtowc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gl_cv_func_mbrtowc=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $gl_cv_func_mbrtowc" >&5
+echo "${ECHO_T}$gl_cv_func_mbrtowc" >&6
+ if test $gl_cv_func_mbrtowc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MBRTOWC 1
+_ACEOF
+
+ fi
+
+
+ echo "$as_me:$LINENO: checking whether wcwidth is declared" >&5
+echo $ECHO_N "checking whether wcwidth is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_wcwidth+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* AIX 3.2.5 declares wcwidth in <string.h>. */
+#if HAVE_STRING_H
+# include <string.h>
+#endif
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
+int
+main ()
+{
+
+#ifndef wcwidth
+ char *p = (char *) wcwidth;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_wcwidth=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_wcwidth=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_wcwidth" >&5
+echo "${ECHO_T}$ac_cv_have_decl_wcwidth" >&6
+ if test $ac_cv_have_decl_wcwidth = yes; then
+ ac_val=1
+ else
+ ac_val=0
+ fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_WCWIDTH $ac_val
+_ACEOF
+
+
+ echo "$as_me:$LINENO: checking whether mbswidth is declared in <wchar.h>" >&5
+echo $ECHO_N "checking whether mbswidth is declared in <wchar.h>... $ECHO_C" >&6
+if test "${ac_cv_have_decl_mbswidth+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
+int
+main ()
+{
+
+ char *p = (char *) mbswidth;
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_have_decl_mbswidth=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_mbswidth=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_mbswidth" >&5
+echo "${ECHO_T}$ac_cv_have_decl_mbswidth" >&6
+ if test $ac_cv_have_decl_mbswidth = yes; then
+ ac_val=1
+ else
+ ac_val=0
+ fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MBSWIDTH_IN_WCHAR_H $ac_val
+_ACEOF
+
+
+ echo "$as_me:$LINENO: checking for mbstate_t" >&5
+echo $ECHO_N "checking for mbstate_t... $ECHO_C" >&6
+if test "${ac_cv_type_mbstate_t+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+# include <wchar.h>
+int
+main ()
+{
+mbstate_t x; return sizeof x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_mbstate_t=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_mbstate_t=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_mbstate_t" >&5
+echo "${ECHO_T}$ac_cv_type_mbstate_t" >&6
+ if test $ac_cv_type_mbstate_t = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MBSTATE_T 1
+_ACEOF
+
+ else
+
+cat >>confdefs.h <<\_ACEOF
+#define mbstate_t int
+_ACEOF
+
+ fi
+
+
+
+ echo "$as_me:$LINENO: checking for obstacks" >&5
+echo $ECHO_N "checking for obstacks... $ECHO_C" >&6
+if test "${ac_cv_func_obstack+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include "obstack.h"
+int
+main ()
+{
+struct obstack *mem; obstack_free(mem,(char *) 0)
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_obstack=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_obstack=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_obstack" >&5
+echo "${ECHO_T}$ac_cv_func_obstack" >&6
+if test $ac_cv_func_obstack = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_OBSTACK 1
+_ACEOF
+
+else
+ case $LIBOBJS in
+ "obstack.$ac_objext" | \
+ *" obstack.$ac_objext" | \
+ "obstack.$ac_objext "* | \
+ *" obstack.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS obstack.$ac_objext" ;;
+esac
+
+fi
+
+ if test $ac_cv_func_obstack = no; then
+
+
+
+
+ :
+
+ fi
+
+
+
+
+ case $LIBOBJS in
+ "quote.$ac_objext" | \
+ *" quote.$ac_objext" | \
+ "quote.$ac_objext "* | \
+ *" quote.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS quote.$ac_objext" ;;
+esac
+
+
+
+
+
+
+ case $LIBOBJS in
+ "quotearg.$ac_objext" | \
+ *" quotearg.$ac_objext" | \
+ "quotearg.$ac_objext "* | \
+ *" quotearg.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS quotearg.$ac_objext" ;;
+esac
+
+
+
+ :
+
+
+
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+
+
+ echo "$as_me:$LINENO: checking for mbstate_t" >&5
+echo $ECHO_N "checking for mbstate_t... $ECHO_C" >&6
+if test "${ac_cv_type_mbstate_t+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+# include <wchar.h>
+int
+main ()
+{
+mbstate_t x; return sizeof x;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_mbstate_t=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_mbstate_t=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_mbstate_t" >&5
+echo "${ECHO_T}$ac_cv_type_mbstate_t" >&6
+ if test $ac_cv_type_mbstate_t = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MBSTATE_T 1
+_ACEOF
+
+ else
+
+cat >>confdefs.h <<\_ACEOF
+#define mbstate_t int
+_ACEOF
+
+ fi
+
+ echo "$as_me:$LINENO: checking whether mbrtowc and mbstate_t are properly declared" >&5
+echo $ECHO_N "checking whether mbrtowc and mbstate_t are properly declared... $ECHO_C" >&6
+if test "${gl_cv_func_mbrtowc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <wchar.h>
+int
+main ()
+{
+wchar_t wc;
+ char const s[] = "";
+ size_t n = 1;
+ mbstate_t state;
+ return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gl_cv_func_mbrtowc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+gl_cv_func_mbrtowc=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $gl_cv_func_mbrtowc" >&5
+echo "${ECHO_T}$gl_cv_func_mbrtowc" >&6
+ if test $gl_cv_func_mbrtowc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_MBRTOWC 1
+_ACEOF
+
+ fi
+
+
+
+
+
+
+ # Define two additional variables used in the Makefile substitution.
+
+ if test "$ac_cv_header_stdbool_h" = yes; then
+ STDBOOL_H=''
+ else
+ STDBOOL_H='stdbool.h'
+ fi
+
+
+ if test "$ac_cv_type__Bool" = yes; then
+ HAVE__BOOL=1
+ else
+ HAVE__BOOL=0
+ fi
+
+
+
+
+
+ case $LIBOBJS in
+ "fopen-safer.$ac_objext" | \
+ *" fopen-safer.$ac_objext" | \
+ "fopen-safer.$ac_objext "* | \
+ *" fopen-safer.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS fopen-safer.$ac_objext" ;;
+esac
+
+
+
+
+
+
+
+for ac_func in stpcpy
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ case $LIBOBJS in
+ "$ac_func.$ac_objext" | \
+ *" $ac_func.$ac_objext" | \
+ "$ac_func.$ac_objext "* | \
+ *" $ac_func.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext" ;;
+esac
+
+fi
+done
+
+
+ if test $ac_cv_func_stpcpy = no; then
+
+ :
+
+ fi
+
+
+
+
+
+
+for ac_func in strdup
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ case $LIBOBJS in
+ "$ac_func.$ac_objext" | \
+ *" $ac_func.$ac_objext" | \
+ "$ac_func.$ac_objext "* | \
+ *" $ac_func.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext" ;;
+esac
+
+fi
+done
+
+
+
+ :
+
+
+
+
+
+ :
+
+
+
+
+for ac_func in strerror
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ case $LIBOBJS in
+ "$ac_func.$ac_objext" | \
+ *" $ac_func.$ac_objext" | \
+ "$ac_func.$ac_objext "* | \
+ *" $ac_func.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext" ;;
+esac
+
+fi
+done
+
+
+ if test $ac_cv_func_strerror = no; then
+
+ :
+
+ fi
+
+
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ # AIX 4.3.3, AIX 5.1 have a function that fails to add the terminating '\0'.
+ echo "$as_me:$LINENO: checking for working strndup" >&5
+echo $ECHO_N "checking for working strndup... $ECHO_C" >&6
+if test "${gl_cv_func_strndup+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+#ifdef _AIX
+ too risky
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "too risky" >/dev/null 2>&1; then
+ gl_cv_func_strndup=no
+else
+ gl_cv_func_strndup=yes
+fi
+rm -f conftest*
+
+else
+ cat >conftest.$ac_ext <<_ACEOF
+
+ /* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <string.h>
+int
+main ()
+{
+
+#ifndef HAVE_DECL_STRNDUP
+ extern char *strndup (const char *, size_t);
+#endif
+ char *s;
+ s = strndup ("some longer string", 15);
+ free (s);
+ s = strndup ("shorter string", 13);
+ return s[13] != '\0';
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ gl_cv_func_strndup=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+gl_cv_func_strndup=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $gl_cv_func_strndup" >&5
+echo "${ECHO_T}$gl_cv_func_strndup" >&6
+ if test $gl_cv_func_strndup = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_STRNDUP 1
+_ACEOF
+
+ else
+ case $LIBOBJS in
+ "strndup.$ac_objext" | \
+ *" strndup.$ac_objext" | \
+ "strndup.$ac_objext "* | \
+ *" strndup.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS strndup.$ac_objext" ;;
+esac
+
+
+cat >>confdefs.h <<\_ACEOF
+#define strndup rpl_strndup
+_ACEOF
+
+ :
+ fi
+
+
+
+
+
+
+
+ echo "$as_me:$LINENO: checking for working strnlen" >&5
+echo $ECHO_N "checking for working strnlen... $ECHO_C" >&6
+if test "${ac_cv_func_strnlen_working+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_func_strnlen_working=no
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+int
+main ()
+{
+
+#define S "foobar"
+#define S_LEN (sizeof S - 1)
+
+ /* At least one implementation is buggy: that of AIX 4.3 would
+ give strnlen (S, 1) == 3. */
+
+ int i;
+ for (i = 0; i < S_LEN + 1; ++i)
+ {
+ int expected = i <= S_LEN ? i : S_LEN;
+ if (strnlen (S, i) != expected)
+ exit (1);
+ }
+ exit (0);
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_strnlen_working=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_func_strnlen_working=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_strnlen_working" >&5
+echo "${ECHO_T}$ac_cv_func_strnlen_working" >&6
+test $ac_cv_func_strnlen_working = no && case $LIBOBJS in
+ "strnlen.$ac_objext" | \
+ *" strnlen.$ac_objext" | \
+ "strnlen.$ac_objext "* | \
+ *" strnlen.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS strnlen.$ac_objext" ;;
+esac
+
+
+ if test $ac_cv_func_strnlen_working = no; then
+ # This is necessary because automake-1.6.1 doens't understand
+ # that the above use of AC_FUNC_STRNLEN means we may have to use
+ # lib/strnlen.c.
+ #AC_LIBOBJ(strnlen)
+
+cat >>confdefs.h <<\_ACEOF
+#define strnlen rpl_strnlen
+_ACEOF
+
+
+
+ :
+
+
+
+
+
+
+ fi
+
+
+
+
+for ac_func in strtol
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ case $LIBOBJS in
+ "$ac_func.$ac_objext" | \
+ *" $ac_func.$ac_objext" | \
+ "$ac_func.$ac_objext "* | \
+ *" $ac_func.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext" ;;
+esac
+
+fi
+done
+
+
+ if test $ac_cv_func_strtol = no; then
+
+
+
+ :
+
+
+
+
+
+
+ fi
+
+
+
+
+for ac_func in strtoul
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ case $LIBOBJS in
+ "$ac_func.$ac_objext" | \
+ *" $ac_func.$ac_objext" | \
+ "$ac_func.$ac_objext "* | \
+ *" $ac_func.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext" ;;
+esac
+
+fi
+done
+
+
+ if test $ac_cv_func_strtoul = no; then
+
+
+
+
+ :
+
+
+
+
+
+
+
+ fi
+
+
+
+
+
+
+
+
+for ac_func in strverscmp
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ case $LIBOBJS in
+ "$ac_func.$ac_objext" | \
+ *" $ac_func.$ac_objext" | \
+ "$ac_func.$ac_objext "* | \
+ *" $ac_func.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext" ;;
+esac
+
+fi
+done
+
+
+ if test $ac_cv_func_strverscmp = no; then
+
+ :
+
+ fi
+
+
+
+
+for ac_header in unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## -------------------------------- ##
+## Report this to bug-bison@gnu.org ##
+## -------------------------------- ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+ UNISTD_H=''
+
+else
+
+ UNISTD_H='unistd.h'
+
+fi
+
+done
+
+
+
+
+
+
+ case $LIBOBJS in
+ "dup-safer.$ac_objext" | \
+ *" dup-safer.$ac_objext" | \
+ "dup-safer.$ac_objext "* | \
+ *" dup-safer.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS dup-safer.$ac_objext" ;;
+esac
+
+ case $LIBOBJS in
+ "fd-safer.$ac_objext" | \
+ *" fd-safer.$ac_objext" | \
+ "fd-safer.$ac_objext "* | \
+ *" fd-safer.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS fd-safer.$ac_objext" ;;
+esac
+
+ case $LIBOBJS in
+ "pipe-safer.$ac_objext" | \
+ *" pipe-safer.$ac_objext" | \
+ "pipe-safer.$ac_objext "* | \
+ *" pipe-safer.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS pipe-safer.$ac_objext" ;;
+esac
+
+
+
+
+
+
+
+cat >>confdefs.h <<\_ACEOF
+#define USE_UNLOCKED_IO 1
+_ACEOF
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+
+
+
+
+
+
+ case $LIBOBJS in
+ "xmalloc.$ac_objext" | \
+ *" xmalloc.$ac_objext" | \
+ "xmalloc.$ac_objext "* | \
+ *" xmalloc.$ac_objext "* ) ;;
+ *) LIBOBJS="$LIBOBJS xmalloc.$ac_objext" ;;
+esac
+
+
+
+ :
+
+
+
+ :
+
+
+
+
+
+
+ :
+
+
+
+
+# We use po/Makevars, so we need at least gettext 0.12.
+
+
+ if test -z "$USE_NLS"; then
+ echo "The BISON-I18N macro is used without being preceded by AM-GNU-GETTEXT." 1>&2
+ exit 1
+ fi
+ BISON_LOCALEDIR=
+ if test "$USE_NLS" = yes; then
+ if test -n "$YACC"; then
+ case "$YACC" in
+ *bison*)
+ if ($YACC --print-localedir) >/dev/null 2>&1; then
+ BISON_LOCALEDIR=`$YACC --print-localedir`
+ fi
+ ;;
+ esac
+ else
+ if test -n "$BISON"; then
+ if test "$BISON" != ":"; then
+ if ($BISON --print-localedir) >/dev/null 2>&1; then
+ BISON_LOCALEDIR=`$BISON --print-localedir`
+ fi
+ fi
+ fi
+ fi
+
+ if test -n "$BISON_LOCALEDIR"; then
+ USER_LINGUAS="${LINGUAS-%UNSET%}"
+ if test -n "$USER_LINGUAS"; then
+ BISON_USE_NLS=yes
+ else
+ BISON_USE_NLS=no
+ fi
+ else
+ BISON_USE_NLS=no
+ fi
+ else
+ BISON_USE_NLS=no
+ fi
+ if test $BISON_USE_NLS = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define YYENABLE_NLS 1
+_ACEOF
+
+ fi
+
+
+# Internationalized parsers.
+ ac_config_files="$ac_config_files runtime-po/Makefile.in"
+
+# Autoconf macros for packages using internationalized parsers.
+aclocaldir='${datadir}/aclocal'
+
+
+# Initialize the test suite.
+ ac_config_commands="$ac_config_commands tests/atconfig"
+
+
+ ac_config_files="$ac_config_files tests/Makefile tests/atlocal"
+
+ ac_config_files="$ac_config_files tests/bison"
+
+for ac_prog in valgrind
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_VALGRIND+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$VALGRIND"; then
+ ac_cv_prog_VALGRIND="$VALGRIND" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_VALGRIND="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+VALGRIND=$ac_cv_prog_VALGRIND
+if test -n "$VALGRIND"; then
+ echo "$as_me:$LINENO: result: $VALGRIND" >&5
+echo "${ECHO_T}$VALGRIND" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$VALGRIND" && break
+done
+
+ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+ for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CXX+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CXX"; then
+ ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+ echo "$as_me:$LINENO: result: $CXX" >&5
+echo "${ECHO_T}$CXX" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$CXX" && break
+ done
+fi
+if test -z "$CXX"; then
+ ac_ct_CXX=$CXX
+ for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CXX"; then
+ ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CXX="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
+echo "${ECHO_T}$ac_ct_CXX" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$ac_ct_CXX" && break
+done
+test -n "$ac_ct_CXX" || ac_ct_CXX="g++"
+
+ CXX=$ac_ct_CXX
+fi
+
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+ "checking for C++ compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+ (eval $ac_compiler --version </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+ (eval $ac_compiler -v </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+ (eval $ac_compiler -V </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+
+echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
+if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+#ifndef __GNUC__
+ choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_compiler_gnu=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
+GXX=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+CXXFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
+echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cxx_g+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cxx_g=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cxx_g=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6
+if test "$ac_test_CXXFLAGS" = set; then
+ CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+ if test "$GXX" = yes; then
+ CXXFLAGS="-g -O2"
+ else
+ CXXFLAGS="-g"
+ fi
+else
+ if test "$GXX" = yes; then
+ CXXFLAGS="-O2"
+ else
+ CXXFLAGS=
+ fi
+fi
+for ac_declaration in \
+ '' \
+ 'extern "C" void std::exit (int) throw (); using std::exit;' \
+ 'extern "C" void std::exit (int); using std::exit;' \
+ 'extern "C" void exit (int) throw ();' \
+ 'extern "C" void exit (int);' \
+ 'void exit (int);'
+do
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+#include <stdlib.h>
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+ echo '#ifdef __cplusplus' >>confdefs.h
+ echo $ac_declaration >>confdefs.h
+ echo '#endif' >>confdefs.h
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CXX" am_compiler_list=
+
+echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
+if test "${am_cv_CXX_dependencies_compiler_type+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+ # We make a subdir and do the tests there. Otherwise we can end up
+ # making bogus files that we don't know about and never remove. For
+ # instance it was reported that on HP-UX the gcc test will end up
+ # making a dummy file named `D' -- because `-MD' means `put the output
+ # in D'.
+ mkdir conftest.dir
+ # Copy depcomp to subdir because otherwise we won't find it if we're
+ # using a relative directory.
+ cp "$am_depcomp" conftest.dir
+ cd conftest.dir
+ # We will build objects and dependencies in a subdirectory because
+ # it helps to detect inapplicable dependency modes. For instance
+ # both Tru64's cc and ICC support -MD to output dependencies as a
+ # side effect of compilation, but ICC will put the dependencies in
+ # the current directory while Tru64 will put them in the object
+ # directory.
+ mkdir sub
+
+ am_cv_CXX_dependencies_compiler_type=none
+ if test "$am_compiler_list" = ""; then
+ am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+ fi
+ for depmode in $am_compiler_list; do
+ # Setup a source with many dependencies, because some compilers
+ # like to wrap large dependency lists on column 80 (with \), and
+ # we should not choose a depcomp mode which is confused by this.
+ #
+ # We need to recreate these files for each test, as the compiler may
+ # overwrite some of them when testing with obscure command lines.
+ # This happens at least with the AIX C compiler.
+ : > sub/conftest.c
+ for i in 1 2 3 4 5 6; do
+ echo '#include "conftst'$i'.h"' >> sub/conftest.c
+ # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+ # Solaris 8's {/usr,}/bin/sh.
+ touch sub/conftst$i.h
+ done
+ echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+ case $depmode in
+ nosideeffect)
+ # after this tag, mechanisms are not by side-effect, so they'll
+ # only be used when explicitly requested
+ if test "x$enable_dependency_tracking" = xyes; then
+ continue
+ else
+ break
+ fi
+ ;;
+ none) break ;;
+ esac
+ # We check with `-c' and `-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
+ # handle `-M -o', and we need to detect this.
+ if depmode=$depmode \
+ source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+ depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+ $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+ >/dev/null 2>conftest.err &&
+ grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+ grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+ ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+ # icc doesn't choke on unknown options, it will just issue warnings
+ # or remarks (even with -Werror). So we grep stderr for any message
+ # that says an option was ignored or not supported.
+ # When given -MP, icc 7.0 and 7.1 complain thusly:
+ # icc: Command line warning: ignoring option '-M'; no argument required
+ # The diagnosis changed in icc 8.0:
+ # icc: Command line remark: option '-MP' not supported
+ if (grep 'ignoring option' conftest.err ||
+ grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+ am_cv_CXX_dependencies_compiler_type=$depmode
+ break
+ fi
+ fi
+ done
+
+ cd ..
+ rm -rf conftest.dir
+else
+ am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_CXX_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CXX_dependencies_compiler_type" >&6
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+
+
+if
+ test "x$enable_dependency_tracking" != xno \
+ && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
+ am__fastdepCXX_TRUE=
+ am__fastdepCXX_FALSE='#'
+else
+ am__fastdepCXX_TRUE='#'
+ am__fastdepCXX_FALSE=
+fi
+
+
+
+
+ echo "$as_me:$LINENO: checking whether $CXX builds executables that work" >&5
+echo $ECHO_N "checking whether $CXX builds executables that work... $ECHO_C" >&6
+if test "${bison_cv_cxx_works+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+ bison_cv_cxx_works=no
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <cstdlib>
+ #include <iostream>
+ #include <map>
+ #include <string>
+ using namespace std;
+int
+main ()
+{
+std::cerr << "";
+ cout << "";
+ typedef std::pair<unsigned int, int> uipair;
+ std::map<unsigned int, int> m;
+ std::map<unsigned int, int>::iterator i;
+ m.insert (uipair (4, -4));
+ for (i = m.begin (); i != m.end (); ++i)
+ if (i->first != 4)
+ return 1;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ if { ac_try='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_objext $LIBS >&5'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ if test "$cross_compiling" = yes; then
+ bison_cv_cxx_works=cross
+else
+ if { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ bison_cv_cxx_works=yes
+fi
+
+fi
+
+fi
+
+ rm -f conftest$ac_exeext
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $bison_cv_cxx_works" >&5
+echo "${ECHO_T}$bison_cv_cxx_works" >&6
+
+ case $bison_cv_cxx_works in
+ yes)
+ BISON_CXX_WORKS=':';;
+ no | cross)
+ BISON_CXX_WORKS='exit 77';;
+ esac
+
+
+
+
+if test $bison_cv_cxx_works = yes; then
+ BISON_CXX_WORKS_TRUE=
+ BISON_CXX_WORKS_FALSE='#'
+else
+ BISON_CXX_WORKS_TRUE='#'
+ BISON_CXX_WORKS_FALSE=
+fi
+
+
+
+AUTOM4TE=${AUTOM4TE-"${am_missing_run}autom4te"}
+
+# Needed by tests/atlocal.in.
+
+O0CFLAGS=`echo $CFLAGS | sed 's/-O[0-9] *//'`
+
+O0CXXFLAGS=`echo $CXXFLAGS | sed 's/-O[0-9] *//'`
+
+
+ ac_config_files="$ac_config_files Makefile build-aux/Makefile po/Makefile.in data/Makefile examples/Makefile examples/calc++/Makefile lib/Makefile src/Makefile doc/Makefile"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems. If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+{
+ (set) 2>&1 |
+ case `(ac_space=' '; set | grep ac_space) 2>&1` in
+ *ac_space=\ *)
+ # `set' does not quote correctly, so add quotes (double-quote
+ # substitution turns \\\\ into \\, and sed turns \\ into \).
+ sed -n \
+ "s/'/'\\\\''/g;
+ s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+ ;;
+ *)
+ # `set' quotes correctly as required by POSIX, so do not add quotes.
+ sed -n \
+ "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+ ;;
+ esac;
+} |
+ sed '
+ t clear
+ : clear
+ s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+ t end
+ /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+ : end' >>confcache
+if diff $cache_file confcache >/dev/null 2>&1; then :; else
+ if test -w $cache_file; then
+ test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
+ cat confcache >$cache_file
+ else
+ echo "not updating unwritable cache $cache_file"
+ fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# VPATH may cause trouble with some makes, so we remove $(srcdir),
+# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+ ac_vpsub='/^[ ]*VPATH[ ]*=/{
+s/:*\$(srcdir):*/:/;
+s/:*\${srcdir}:*/:/;
+s/:*@srcdir@:*/:/;
+s/^\([^=]*=[ ]*\):*/\1/;
+s/:*$//;
+s/^[^=]*=[ ]*$//;
+}'
+fi
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+ # 1. Remove the extension, and $U if already installed.
+ ac_i=`echo "$ac_i" |
+ sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
+ # 2. Add them.
+ ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
+ ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+ { { echo "$as_me:$LINENO: error: conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+ { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+ { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+ { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
+ { { echo "$as_me:$LINENO: error: conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+if test -z "${BISON_CXX_WORKS_TRUE}" && test -z "${BISON_CXX_WORKS_FALSE}"; then
+ { { echo "$as_me:$LINENO: error: conditional \"BISON_CXX_WORKS\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+echo "$as_me: error: conditional \"BISON_CXX_WORKS\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+: ${CONFIG_STATUS=./config.status}
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
+echo "$as_me: creating $CONFIG_STATUS" >&6;}
+cat >$CONFIG_STATUS <<_ACEOF
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+SHELL=\${CONFIG_SHELL-$SHELL}
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+## --------------------- ##
+## M4sh Initialization. ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+ # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '${1+"$@"}'='"$@"'
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+ set -o posix
+fi
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# Support unset when possible.
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+ as_unset=unset
+else
+ as_unset=false
+fi
+
+
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+ LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+ LC_TELEPHONE LC_TIME
+do
+ if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+ eval $as_var=C; export $as_var
+ else
+ $as_unset $as_var
+ fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)$' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+ /^X\/\(\/\/\)$/{ s//\1/; q; }
+ /^X\/\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" || {
+ # Find who we are. Look in the path if we contain no path at all
+ # relative or not.
+ case $0 in
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+ ;;
+ esac
+ # We did not find ourselves, most probably we were run as `sh COMMAND'
+ # in which case we are not to be found in the path.
+ if test "x$as_myself" = x; then
+ as_myself=$0
+ fi
+ if test ! -f "$as_myself"; then
+ { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
+echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+ case $CONFIG_SHELL in
+ '')
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for as_base in sh bash ksh sh5; do
+ case $as_dir in
+ /*)
+ if ("$as_dir/$as_base" -c '
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
+ $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
+ $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
+ CONFIG_SHELL=$as_dir/$as_base
+ export CONFIG_SHELL
+ exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+ fi;;
+ esac
+ done
+done
+;;
+ esac
+
+ # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+ # uniformly replaced by the line number. The first 'sed' inserts a
+ # line-number line before each line; the second 'sed' does the real
+ # work. The second script uses 'N' to pair each line-number line
+ # with the numbered line, and appends trailing '-' during
+ # substitution so that $LINENO is not a special case at line end.
+ # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+ # second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
+ sed '=' <$as_myself |
+ sed '
+ N
+ s,$,-,
+ : loop
+ s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+ t loop
+ s,-$,,
+ s,^['$as_cr_digits']*\n,,
+ ' >$as_me.lineno &&
+ chmod +x $as_me.lineno ||
+ { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
+echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
+ { (exit 1); exit 1; }; }
+
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensible to this).
+ . ./$as_me.lineno
+ # Exit status is that of the last command.
+ exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+ *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T=' ' ;;
+ *c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+ *) ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+ # We could just check for DJGPP; but this test a) works b) is more generic
+ # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+ if test -f conf$$.exe; then
+ # Don't use ln at all; we don't have any links
+ as_ln_s='cp -p'
+ else
+ as_ln_s='ln -s'
+ fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+else
+ as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+if mkdir -p . 2>/dev/null; then
+ as_mkdir_p=:
+else
+ test -d ./-p && rmdir ./-p
+ as_mkdir_p=false
+fi
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS=" $as_nl"
+
+# CDPATH.
+$as_unset CDPATH
+
+exec 6>&1
+
+# Open the log real soon, to keep \$[0] and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling. Logging --version etc. is OK.
+exec 5>>config.log
+{
+ echo
+ sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+} >&5
+cat >&5 <<_CSEOF
+
+This file was extended by GNU Bison $as_me 2.3, which was
+generated by GNU Autoconf 2.59. Invocation command line was
+
+ CONFIG_FILES = $CONFIG_FILES
+ CONFIG_HEADERS = $CONFIG_HEADERS
+ CONFIG_LINKS = $CONFIG_LINKS
+ CONFIG_COMMANDS = $CONFIG_COMMANDS
+ $ $0 $@
+
+_CSEOF
+echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
+echo >&5
+_ACEOF
+
+# Files that config.status was made for.
+if test -n "$ac_config_files"; then
+ echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_headers"; then
+ echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_links"; then
+ echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_commands"; then
+ echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+ac_cs_usage="\
+\`$as_me' instantiates files from templates according to the
+current configuration.
+
+Usage: $0 [OPTIONS] [FILE]...
+
+ -h, --help print this help, then exit
+ -V, --version print version number, then exit
+ -q, --quiet do not print progress messages
+ -d, --debug don't remove temporary files
+ --recheck update $as_me by reconfiguring in the same conditions
+ --file=FILE[:TEMPLATE]
+ instantiate the configuration file FILE
+ --header=FILE[:TEMPLATE]
+ instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to <bug-autoconf@gnu.org>."
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+ac_cs_version="\\
+GNU Bison config.status 2.3
+configured by $0, generated by GNU Autoconf 2.59,
+ with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
+
+Copyright (C) 2003 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+srcdir=$srcdir
+INSTALL="$INSTALL"
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+# If no file are specified by the user, then we need to provide default
+# value. By we need to know if files were specified by the user.
+ac_need_defaults=:
+while test $# != 0
+do
+ case $1 in
+ --*=*)
+ ac_option=`expr "x$1" : 'x\([^=]*\)='`
+ ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
+ ac_shift=:
+ ;;
+ -*)
+ ac_option=$1
+ ac_optarg=$2
+ ac_shift=shift
+ ;;
+ *) # This is not an option, so the user has probably given explicit
+ # arguments.
+ ac_option=$1
+ ac_need_defaults=false;;
+ esac
+
+ case $ac_option in
+ # Handling of the options.
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+ -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+ ac_cs_recheck=: ;;
+ --version | --vers* | -V )
+ echo "$ac_cs_version"; exit 0 ;;
+ --he | --h)
+ # Conflict between --help and --header
+ { { echo "$as_me:$LINENO: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&2;}
+ { (exit 1); exit 1; }; };;
+ --help | --hel | -h )
+ echo "$ac_cs_usage"; exit 0 ;;
+ --debug | --d* | -d )
+ debug=: ;;
+ --file | --fil | --fi | --f )
+ $ac_shift
+ CONFIG_FILES="$CONFIG_FILES $ac_optarg"
+ ac_need_defaults=false;;
+ --header | --heade | --head | --hea )
+ $ac_shift
+ CONFIG_HEADERS="$CONFIG_HEADERS $ac_optarg"
+ ac_need_defaults=false;;
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil | --si | --s)
+ ac_cs_silent=: ;;
+
+ # This is an error.
+ -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&2;}
+ { (exit 1); exit 1; }; } ;;
+
+ *) ac_config_targets="$ac_config_targets $1" ;;
+
+ esac
+ shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+ exec 6>/dev/null
+ ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+if \$ac_cs_recheck; then
+ echo "running $SHELL $0 " $ac_configure_args \$ac_configure_extra_args " --no-create --no-recursion" >&6
+ exec $SHELL $0 $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+fi
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+#
+# INIT-COMMANDS section.
+#
+
+AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+# Capture the value of obsolete ALL_LINGUAS because we need it to compute
+ # POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES, CATALOGS. But hide it
+ # from automake.
+ eval 'OBSOLETE_ALL_LINGUAS''="$ALL_LINGUAS"'
+ # Capture the value of LINGUAS because we need it to compute CATALOGS.
+ LINGUAS="${LINGUAS-%UNSET%}"
+
+
+_ACEOF
+
+
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+for ac_config_target in $ac_config_targets
+do
+ case "$ac_config_target" in
+ # Handling of arguments.
+ "runtime-po/Makefile.in" ) CONFIG_FILES="$CONFIG_FILES runtime-po/Makefile.in" ;;
+ "tests/Makefile" ) CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;;
+ "tests/atlocal" ) CONFIG_FILES="$CONFIG_FILES tests/atlocal" ;;
+ "tests/bison" ) CONFIG_FILES="$CONFIG_FILES tests/bison" ;;
+ "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+ "build-aux/Makefile" ) CONFIG_FILES="$CONFIG_FILES build-aux/Makefile" ;;
+ "po/Makefile.in" ) CONFIG_FILES="$CONFIG_FILES po/Makefile.in" ;;
+ "data/Makefile" ) CONFIG_FILES="$CONFIG_FILES data/Makefile" ;;
+ "examples/Makefile" ) CONFIG_FILES="$CONFIG_FILES examples/Makefile" ;;
+ "examples/calc++/Makefile" ) CONFIG_FILES="$CONFIG_FILES examples/calc++/Makefile" ;;
+ "lib/Makefile" ) CONFIG_FILES="$CONFIG_FILES lib/Makefile" ;;
+ "src/Makefile" ) CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+ "doc/Makefile" ) CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
+ "depfiles" ) CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+ "default-1" ) CONFIG_COMMANDS="$CONFIG_COMMANDS default-1" ;;
+ "tests/atconfig" ) CONFIG_COMMANDS="$CONFIG_COMMANDS tests/atconfig" ;;
+ "config.h" ) CONFIG_HEADERS="$CONFIG_HEADERS config.h:config.hin" ;;
+ *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
+echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
+ { (exit 1); exit 1; }; };;
+ esac
+done
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used. Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+ test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+ test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+ test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience. Make it in the build tree
+# simply because there is no reason to put it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Create a temporary directory, and hook for its removal unless debugging.
+$debug ||
+{
+ trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
+ trap '{ (exit 1); exit 1; }' 1 2 13 15
+}
+
+# Create a (secure) tmp directory for tmp files.
+
+{
+ tmp=`(umask 077 && mktemp -d -q "./confstatXXXXXX") 2>/dev/null` &&
+ test -n "$tmp" && test -d "$tmp"
+} ||
+{
+ tmp=./confstat$$-$RANDOM
+ (umask 077 && mkdir $tmp)
+} ||
+{
+ echo "$me: cannot create a temporary directory in ." >&2
+ { (exit 1); exit 1; }
+}
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+
+#
+# CONFIG_FILES section.
+#
+
+# No need to generate the scripts if there are no CONFIG_FILES.
+# This happens for instance when ./config.status config.h
+if test -n "\$CONFIG_FILES"; then
+ # Protect against being on the right side of a sed subst in config.status.
+ sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
+ s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF
+s,@SHELL@,$SHELL,;t t
+s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
+s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
+s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
+s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
+s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
+s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
+s,@exec_prefix@,$exec_prefix,;t t
+s,@prefix@,$prefix,;t t
+s,@program_transform_name@,$program_transform_name,;t t
+s,@bindir@,$bindir,;t t
+s,@sbindir@,$sbindir,;t t
+s,@libexecdir@,$libexecdir,;t t
+s,@datadir@,$datadir,;t t
+s,@sysconfdir@,$sysconfdir,;t t
+s,@sharedstatedir@,$sharedstatedir,;t t
+s,@localstatedir@,$localstatedir,;t t
+s,@libdir@,$libdir,;t t
+s,@includedir@,$includedir,;t t
+s,@oldincludedir@,$oldincludedir,;t t
+s,@infodir@,$infodir,;t t
+s,@mandir@,$mandir,;t t
+s,@build_alias@,$build_alias,;t t
+s,@host_alias@,$host_alias,;t t
+s,@target_alias@,$target_alias,;t t
+s,@DEFS@,$DEFS,;t t
+s,@ECHO_C@,$ECHO_C,;t t
+s,@ECHO_N@,$ECHO_N,;t t
+s,@ECHO_T@,$ECHO_T,;t t
+s,@LIBS@,$LIBS,;t t
+s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,;t t
+s,@INSTALL_SCRIPT@,$INSTALL_SCRIPT,;t t
+s,@INSTALL_DATA@,$INSTALL_DATA,;t t
+s,@CYGPATH_W@,$CYGPATH_W,;t t
+s,@PACKAGE@,$PACKAGE,;t t
+s,@VERSION@,$VERSION,;t t
+s,@ACLOCAL@,$ACLOCAL,;t t
+s,@AUTOCONF@,$AUTOCONF,;t t
+s,@AUTOMAKE@,$AUTOMAKE,;t t
+s,@AUTOHEADER@,$AUTOHEADER,;t t
+s,@MAKEINFO@,$MAKEINFO,;t t
+s,@install_sh@,$install_sh,;t t
+s,@STRIP@,$STRIP,;t t
+s,@ac_ct_STRIP@,$ac_ct_STRIP,;t t
+s,@INSTALL_STRIP_PROGRAM@,$INSTALL_STRIP_PROGRAM,;t t
+s,@mkdir_p@,$mkdir_p,;t t
+s,@AWK@,$AWK,;t t
+s,@SET_MAKE@,$SET_MAKE,;t t
+s,@am__leading_dot@,$am__leading_dot,;t t
+s,@AMTAR@,$AMTAR,;t t
+s,@am__tar@,$am__tar,;t t
+s,@am__untar@,$am__untar,;t t
+s,@CC@,$CC,;t t
+s,@CFLAGS@,$CFLAGS,;t t
+s,@LDFLAGS@,$LDFLAGS,;t t
+s,@CPPFLAGS@,$CPPFLAGS,;t t
+s,@ac_ct_CC@,$ac_ct_CC,;t t
+s,@EXEEXT@,$EXEEXT,;t t
+s,@OBJEXT@,$OBJEXT,;t t
+s,@DEPDIR@,$DEPDIR,;t t
+s,@am__include@,$am__include,;t t
+s,@am__quote@,$am__quote,;t t
+s,@AMDEP_TRUE@,$AMDEP_TRUE,;t t
+s,@AMDEP_FALSE@,$AMDEP_FALSE,;t t
+s,@AMDEPBACKSLASH@,$AMDEPBACKSLASH,;t t
+s,@CCDEPMODE@,$CCDEPMODE,;t t
+s,@am__fastdepCC_TRUE@,$am__fastdepCC_TRUE,;t t
+s,@am__fastdepCC_FALSE@,$am__fastdepCC_FALSE,;t t
+s,@CPP@,$CPP,;t t
+s,@EGREP@,$EGREP,;t t
+s,@WARNING_CFLAGS@,$WARNING_CFLAGS,;t t
+s,@WERROR_CFLAGS@,$WERROR_CFLAGS,;t t
+s,@WARNING_CXXFLAGS@,$WARNING_CXXFLAGS,;t t
+s,@YACC_SCRIPT@,$YACC_SCRIPT,;t t
+s,@YACC_LIBRARY@,$YACC_LIBRARY,;t t
+s,@LEX@,$LEX,;t t
+s,@LEXLIB@,$LEXLIB,;t t
+s,@LEX_OUTPUT_ROOT@,$LEX_OUTPUT_ROOT,;t t
+s,@YACC@,$YACC,;t t
+s,@RANLIB@,$RANLIB,;t t
+s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t
+s,@M4@,$M4,;t t
+s,@STDBOOL_H@,$STDBOOL_H,;t t
+s,@HAVE__BOOL@,$HAVE__BOOL,;t t
+s,@LIBOBJS@,$LIBOBJS,;t t
+s,@GETOPT_H@,$GETOPT_H,;t t
+s,@MKINSTALLDIRS@,$MKINSTALLDIRS,;t t
+s,@USE_NLS@,$USE_NLS,;t t
+s,@MSGFMT@,$MSGFMT,;t t
+s,@GMSGFMT@,$GMSGFMT,;t t
+s,@XGETTEXT@,$XGETTEXT,;t t
+s,@MSGMERGE@,$MSGMERGE,;t t
+s,@build@,$build,;t t
+s,@build_cpu@,$build_cpu,;t t
+s,@build_vendor@,$build_vendor,;t t
+s,@build_os@,$build_os,;t t
+s,@host@,$host,;t t
+s,@host_cpu@,$host_cpu,;t t
+s,@host_vendor@,$host_vendor,;t t
+s,@host_os@,$host_os,;t t
+s,@INTL_MACOSX_LIBS@,$INTL_MACOSX_LIBS,;t t
+s,@LIBICONV@,$LIBICONV,;t t
+s,@LTLIBICONV@,$LTLIBICONV,;t t
+s,@INTLLIBS@,$INTLLIBS,;t t
+s,@LIBINTL@,$LIBINTL,;t t
+s,@LTLIBINTL@,$LTLIBINTL,;t t
+s,@POSUB@,$POSUB,;t t
+s,@UNISTD_H@,$UNISTD_H,;t t
+s,@BISON_LOCALEDIR@,$BISON_LOCALEDIR,;t t
+s,@aclocaldir@,$aclocaldir,;t t
+s,@VALGRIND@,$VALGRIND,;t t
+s,@CXX@,$CXX,;t t
+s,@CXXFLAGS@,$CXXFLAGS,;t t
+s,@ac_ct_CXX@,$ac_ct_CXX,;t t
+s,@CXXDEPMODE@,$CXXDEPMODE,;t t
+s,@am__fastdepCXX_TRUE@,$am__fastdepCXX_TRUE,;t t
+s,@am__fastdepCXX_FALSE@,$am__fastdepCXX_FALSE,;t t
+s,@BISON_CXX_WORKS@,$BISON_CXX_WORKS,;t t
+s,@BISON_CXX_WORKS_TRUE@,$BISON_CXX_WORKS_TRUE,;t t
+s,@BISON_CXX_WORKS_FALSE@,$BISON_CXX_WORKS_FALSE,;t t
+s,@AUTOM4TE@,$AUTOM4TE,;t t
+s,@GCC@,$GCC,;t t
+s,@O0CFLAGS@,$O0CFLAGS,;t t
+s,@O0CXXFLAGS@,$O0CXXFLAGS,;t t
+s,@LTLIBOBJS@,$LTLIBOBJS,;t t
+CEOF
+
+_ACEOF
+
+ cat >>$CONFIG_STATUS <<\_ACEOF
+ # Split the substitutions into bite-sized pieces for seds with
+ # small command number limits, like on Digital OSF/1 and HP-UX.
+ ac_max_sed_lines=48
+ ac_sed_frag=1 # Number of current file.
+ ac_beg=1 # First line for current file.
+ ac_end=$ac_max_sed_lines # Line after last line for current file.
+ ac_more_lines=:
+ ac_sed_cmds=
+ while $ac_more_lines; do
+ if test $ac_beg -gt 1; then
+ sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+ else
+ sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+ fi
+ if test ! -s $tmp/subs.frag; then
+ ac_more_lines=false
+ else
+ # The purpose of the label and of the branching condition is to
+ # speed up the sed processing (if there are no `@' at all, there
+ # is no need to browse any of the substitutions).
+ # These are the two extra sed commands mentioned above.
+ (echo ':t
+ /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
+ if test -z "$ac_sed_cmds"; then
+ ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
+ else
+ ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
+ fi
+ ac_sed_frag=`expr $ac_sed_frag + 1`
+ ac_beg=$ac_end
+ ac_end=`expr $ac_end + $ac_max_sed_lines`
+ fi
+ done
+ if test -z "$ac_sed_cmds"; then
+ ac_sed_cmds=cat
+ fi
+fi # test -n "$CONFIG_FILES"
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
+ # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+ case $ac_file in
+ - | *:- | *:-:* ) # input from stdin
+ cat >$tmp/stdin
+ ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ * ) ac_file_in=$ac_file.in ;;
+ esac
+
+ # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
+ ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_file" : 'X\(//\)[^/]' \| \
+ X"$ac_file" : 'X\(//\)$' \| \
+ X"$ac_file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p "$ac_dir"
+ else
+ as_dir="$ac_dir"
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+
+# Do not use `cd foo && pwd` to compute absolute paths, because
+# the directories may not exist.
+case `pwd` in
+.) ac_abs_builddir="$ac_dir";;
+*)
+ case "$ac_dir" in
+ .) ac_abs_builddir=`pwd`;;
+ [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
+ *) ac_abs_builddir=`pwd`/"$ac_dir";;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_builddir=${ac_top_builddir}.;;
+*)
+ case ${ac_top_builddir}. in
+ .) ac_abs_top_builddir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
+ *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_srcdir=$ac_srcdir;;
+*)
+ case $ac_srcdir in
+ .) ac_abs_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
+ *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_srcdir=$ac_top_srcdir;;
+*)
+ case $ac_top_srcdir in
+ .) ac_abs_top_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
+ *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
+ esac;;
+esac
+
+
+ case $INSTALL in
+ [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+ *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
+ esac
+
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ if test x"$ac_file" = x-; then
+ configure_input=
+ else
+ configure_input="$ac_file. "
+ fi
+ configure_input=$configure_input"Generated from `echo $ac_file_in |
+ sed 's,.*/,,'` by configure."
+
+ # First look for the input files in the build tree, otherwise in the
+ # src tree.
+ ac_file_inputs=`IFS=:
+ for f in $ac_file_in; do
+ case $f in
+ -) echo $tmp/stdin ;;
+ [\\/$]*)
+ # Absolute (can't be DOS-style, as IFS=:)
+ test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ echo "$f";;
+ *) # Relative
+ if test -f "$f"; then
+ # Build tree
+ echo "$f"
+ elif test -f "$srcdir/$f"; then
+ # Source tree
+ echo "$srcdir/$f"
+ else
+ # /dev/null tree
+ { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ fi;;
+ esac
+ done` || { (exit 1); exit 1; }
+
+ if test x"$ac_file" != x-; then
+ { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+ rm -f "$ac_file"
+ fi
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+ sed "$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s,@configure_input@,$configure_input,;t t
+s,@srcdir@,$ac_srcdir,;t t
+s,@abs_srcdir@,$ac_abs_srcdir,;t t
+s,@top_srcdir@,$ac_top_srcdir,;t t
+s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
+s,@builddir@,$ac_builddir,;t t
+s,@abs_builddir@,$ac_abs_builddir,;t t
+s,@top_builddir@,$ac_top_builddir,;t t
+s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
+s,@INSTALL@,$ac_INSTALL,;t t
+" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
+ rm -f $tmp/stdin
+ if test x"$ac_file" != x-; then
+ mv $tmp/out $ac_file
+ else
+ cat $tmp/out
+ rm -f $tmp/out
+ fi
+
+ # Run the commands associated with the file.
+ case $ac_file in
+ tests/bison ) chmod +x tests/bison ;;
+ esac
+done
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+#
+# CONFIG_HEADER section.
+#
+
+# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
+# NAME is the cpp macro being defined and VALUE is the value it is being given.
+#
+# ac_d sets the value in "#define NAME VALUE" lines.
+ac_dA='s,^\([ ]*\)#\([ ]*define[ ][ ]*\)'
+ac_dB='[ ].*$,\1#\2'
+ac_dC=' '
+ac_dD=',;t'
+# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
+ac_uA='s,^\([ ]*\)#\([ ]*\)undef\([ ][ ]*\)'
+ac_uB='$,\1#\2define\3'
+ac_uC=' '
+ac_uD=',;t'
+
+for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
+ # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+ case $ac_file in
+ - | *:- | *:-:* ) # input from stdin
+ cat >$tmp/stdin
+ ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ * ) ac_file_in=$ac_file.in ;;
+ esac
+
+ test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+
+ # First look for the input files in the build tree, otherwise in the
+ # src tree.
+ ac_file_inputs=`IFS=:
+ for f in $ac_file_in; do
+ case $f in
+ -) echo $tmp/stdin ;;
+ [\\/$]*)
+ # Absolute (can't be DOS-style, as IFS=:)
+ test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ # Do quote $f, to prevent DOS paths from being IFS'd.
+ echo "$f";;
+ *) # Relative
+ if test -f "$f"; then
+ # Build tree
+ echo "$f"
+ elif test -f "$srcdir/$f"; then
+ # Source tree
+ echo "$srcdir/$f"
+ else
+ # /dev/null tree
+ { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ fi;;
+ esac
+ done` || { (exit 1); exit 1; }
+ # Remove the trailing spaces.
+ sed 's/[ ]*$//' $ac_file_inputs >$tmp/in
+
+_ACEOF
+
+# Transform confdefs.h into two sed scripts, `conftest.defines' and
+# `conftest.undefs', that substitutes the proper values into
+# config.h.in to produce config.h. The first handles `#define'
+# templates, and the second `#undef' templates.
+# And first: Protect against being on the right side of a sed subst in
+# config.status. Protect against being in an unquoted here document
+# in config.status.
+rm -f conftest.defines conftest.undefs
+# Using a here document instead of a string reduces the quoting nightmare.
+# Putting comments in sed scripts is not portable.
+#
+# `end' is used to avoid that the second main sed command (meant for
+# 0-ary CPP macros) applies to n-ary macro definitions.
+# See the Autoconf documentation for `clear'.
+cat >confdef2sed.sed <<\_ACEOF
+s/[\\&,]/\\&/g
+s,[\\$`],\\&,g
+t clear
+: clear
+s,^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*\)\(([^)]*)\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp
+t end
+s,^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
+: end
+_ACEOF
+# If some macros were called several times there might be several times
+# the same #defines, which is useless. Nevertheless, we may not want to
+# sort them, since we want the *last* AC-DEFINE to be honored.
+uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines
+sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs
+rm -f confdef2sed.sed
+
+# This sed command replaces #undef with comments. This is necessary, for
+# example, in the case of _POSIX_SOURCE, which is predefined and required
+# on some systems where configure will not decide to define it.
+cat >>conftest.undefs <<\_ACEOF
+s,^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
+_ACEOF
+
+# Break up conftest.defines because some shells have a limit on the size
+# of here documents, and old seds have small limits too (100 cmds).
+echo ' # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
+echo ' if grep "^[ ]*#[ ]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
+echo ' # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
+echo ' :' >>$CONFIG_STATUS
+rm -f conftest.tail
+while grep . conftest.defines >/dev/null
+do
+ # Write a limited-size here document to $tmp/defines.sed.
+ echo ' cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS
+ # Speed up: don't consider the non `#define' lines.
+ echo '/^[ ]*#[ ]*define/!b' >>$CONFIG_STATUS
+ # Work around the forget-to-reset-the-flag bug.
+ echo 't clr' >>$CONFIG_STATUS
+ echo ': clr' >>$CONFIG_STATUS
+ sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS
+ echo 'CEOF
+ sed -f $tmp/defines.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+ sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail
+ rm -f conftest.defines
+ mv conftest.tail conftest.defines
+done
+rm -f conftest.defines
+echo ' fi # grep' >>$CONFIG_STATUS
+echo >>$CONFIG_STATUS
+
+# Break up conftest.undefs because some shells have a limit on the size
+# of here documents, and old seds have small limits too (100 cmds).
+echo ' # Handle all the #undef templates' >>$CONFIG_STATUS
+rm -f conftest.tail
+while grep . conftest.undefs >/dev/null
+do
+ # Write a limited-size here document to $tmp/undefs.sed.
+ echo ' cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS
+ # Speed up: don't consider the non `#undef'
+ echo '/^[ ]*#[ ]*undef/!b' >>$CONFIG_STATUS
+ # Work around the forget-to-reset-the-flag bug.
+ echo 't clr' >>$CONFIG_STATUS
+ echo ': clr' >>$CONFIG_STATUS
+ sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS
+ echo 'CEOF
+ sed -f $tmp/undefs.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+ sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail
+ rm -f conftest.undefs
+ mv conftest.tail conftest.undefs
+done
+rm -f conftest.undefs
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ if test x"$ac_file" = x-; then
+ echo "/* Generated by configure. */" >$tmp/config.h
+ else
+ echo "/* $ac_file. Generated by configure. */" >$tmp/config.h
+ fi
+ cat $tmp/in >>$tmp/config.h
+ rm -f $tmp/in
+ if test x"$ac_file" != x-; then
+ if diff $ac_file $tmp/config.h >/dev/null 2>&1; then
+ { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
+echo "$as_me: $ac_file is unchanged" >&6;}
+ else
+ ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_file" : 'X\(//\)[^/]' \| \
+ X"$ac_file" : 'X\(//\)$' \| \
+ X"$ac_file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p "$ac_dir"
+ else
+ as_dir="$ac_dir"
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ rm -f $ac_file
+ mv $tmp/config.h $ac_file
+ fi
+ else
+ cat $tmp/config.h
+ rm -f $tmp/config.h
+ fi
+# Compute $ac_file's index in $config_headers.
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+ case $_am_header in
+ $ac_file | $ac_file:* )
+ break ;;
+ * )
+ _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+ esac
+done
+echo "timestamp for $ac_file" >`(dirname $ac_file) 2>/dev/null ||
+$as_expr X$ac_file : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X$ac_file : 'X\(//\)[^/]' \| \
+ X$ac_file : 'X\(//\)$' \| \
+ X$ac_file : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X$ac_file |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`/stamp-h$_am_stamp_count
+done
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+#
+# CONFIG_COMMANDS section.
+#
+for ac_file in : $CONFIG_COMMANDS; do test "x$ac_file" = x: && continue
+ ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
+ ac_source=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_dir=`(dirname "$ac_dest") 2>/dev/null ||
+$as_expr X"$ac_dest" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_dest" : 'X\(//\)[^/]' \| \
+ X"$ac_dest" : 'X\(//\)$' \| \
+ X"$ac_dest" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_dest" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p "$ac_dir"
+ else
+ as_dir="$ac_dir"
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+
+# Do not use `cd foo && pwd` to compute absolute paths, because
+# the directories may not exist.
+case `pwd` in
+.) ac_abs_builddir="$ac_dir";;
+*)
+ case "$ac_dir" in
+ .) ac_abs_builddir=`pwd`;;
+ [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
+ *) ac_abs_builddir=`pwd`/"$ac_dir";;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_builddir=${ac_top_builddir}.;;
+*)
+ case ${ac_top_builddir}. in
+ .) ac_abs_top_builddir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
+ *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_srcdir=$ac_srcdir;;
+*)
+ case $ac_srcdir in
+ .) ac_abs_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
+ *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
+ esac;;
+esac
+case $ac_abs_builddir in
+.) ac_abs_top_srcdir=$ac_top_srcdir;;
+*)
+ case $ac_top_srcdir in
+ .) ac_abs_top_srcdir=$ac_abs_builddir;;
+ [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
+ *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
+ esac;;
+esac
+
+
+ { echo "$as_me:$LINENO: executing $ac_dest commands" >&5
+echo "$as_me: executing $ac_dest commands" >&6;}
+ case $ac_dest in
+ depfiles ) test x"$AMDEP_TRUE" != x"" || for mf in $CONFIG_FILES; do
+ # Strip MF so we end up with the name of the file.
+ mf=`echo "$mf" | sed -e 's/:.*$//'`
+ # Check whether this is an Automake generated Makefile or not.
+ # We used to match only the files named `Makefile.in', but
+ # some people rename them; so instead we look at the file content.
+ # Grep'ing the first line is not enough: some people post-process
+ # each Makefile.in and add a new line on top of each file to say so.
+ # So let's grep whole file.
+ if grep '^#.*generated by automake' $mf > /dev/null 2>&1; then
+ dirpart=`(dirname "$mf") 2>/dev/null ||
+$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$mf" : 'X\(//\)[^/]' \| \
+ X"$mf" : 'X\(//\)$' \| \
+ X"$mf" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$mf" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ else
+ continue
+ fi
+ # Extract the definition of DEPDIR, am__include, and am__quote
+ # from the Makefile without running `make'.
+ DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+ test -z "$DEPDIR" && continue
+ am__include=`sed -n 's/^am__include = //p' < "$mf"`
+ test -z "am__include" && continue
+ am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+ # When using ansi2knr, U may be empty or an underscore; expand it
+ U=`sed -n 's/^U = //p' < "$mf"`
+ # Find all dependency output files, they are included files with
+ # $(DEPDIR) in their names. We invoke sed twice because it is the
+ # simplest approach to changing $(DEPDIR) to its actual value in the
+ # expansion.
+ for file in `sed -n "
+ s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+ sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+ # Make sure the directory exists.
+ test -f "$dirpart/$file" && continue
+ fdir=`(dirname "$file") 2>/dev/null ||
+$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$file" : 'X\(//\)[^/]' \| \
+ X"$file" : 'X\(//\)$' \| \
+ X"$file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { if $as_mkdir_p; then
+ mkdir -p $dirpart/$fdir
+ else
+ as_dir=$dirpart/$fdir
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory $dirpart/$fdir" >&5
+echo "$as_me: error: cannot create directory $dirpart/$fdir" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+ # echo "creating $dirpart/$file"
+ echo '# dummy' > "$dirpart/$file"
+ done
+done
+ ;;
+ default-1 )
+ for ac_file in $CONFIG_FILES; do
+ # Support "outfile[:infile[:infile...]]"
+ case "$ac_file" in
+ *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+ esac
+ # PO directories have a Makefile.in generated from Makefile.in.in.
+ case "$ac_file" in */Makefile.in)
+ # Adjust a relative srcdir.
+ ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
+ ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+ ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
+ # In autoconf-2.13 it is called $ac_given_srcdir.
+ # In autoconf-2.50 it is called $srcdir.
+ test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
+ case "$ac_given_srcdir" in
+ .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
+ /*) top_srcdir="$ac_given_srcdir" ;;
+ *) top_srcdir="$ac_dots$ac_given_srcdir" ;;
+ esac
+ # Treat a directory as a PO directory if and only if it has a
+ # POTFILES.in file. This allows packages to have multiple PO
+ # directories under different names or in different locations.
+ if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
+ rm -f "$ac_dir/POTFILES"
+ test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
+ cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES"
+ POMAKEFILEDEPS="POTFILES.in"
+ # ALL_LINGUAS, POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES depend
+ # on $ac_dir but don't depend on user-specified configuration
+ # parameters.
+ if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
+ # The LINGUAS file contains the set of available languages.
+ if test -n "$OBSOLETE_ALL_LINGUAS"; then
+ test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
+ fi
+ ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" "$ac_given_srcdir/$ac_dir/LINGUAS"`
+ # Hide the ALL_LINGUAS assigment from automake.
+ eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
+ POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS"
+ else
+ # The set of available languages was given in configure.in.
+ eval 'ALL_LINGUAS''=$OBSOLETE_ALL_LINGUAS'
+ fi
+ # Compute POFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po)
+ # Compute UPDATEPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).po-update)
+ # Compute DUMMYPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).nop)
+ # Compute GMOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo)
+ case "$ac_given_srcdir" in
+ .) srcdirpre= ;;
+ *) srcdirpre='$(srcdir)/' ;;
+ esac
+ POFILES=
+ UPDATEPOFILES=
+ DUMMYPOFILES=
+ GMOFILES=
+ for lang in $ALL_LINGUAS; do
+ POFILES="$POFILES $srcdirpre$lang.po"
+ UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
+ DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
+ GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
+ done
+ # CATALOGS depends on both $ac_dir and the user's LINGUAS
+ # environment variable.
+ INST_LINGUAS=
+ if test -n "$ALL_LINGUAS"; then
+ for presentlang in $ALL_LINGUAS; do
+ useit=no
+ if test "%UNSET%" != "$LINGUAS"; then
+ desiredlanguages="$LINGUAS"
+ else
+ desiredlanguages="$ALL_LINGUAS"
+ fi
+ for desiredlang in $desiredlanguages; do
+ # Use the presentlang catalog if desiredlang is
+ # a. equal to presentlang, or
+ # b. a variant of presentlang (because in this case,
+ # presentlang can be used as a fallback for messages
+ # which are not translated in the desiredlang catalog).
+ case "$desiredlang" in
+ "$presentlang"*) useit=yes;;
+ esac
+ done
+ if test $useit = yes; then
+ INST_LINGUAS="$INST_LINGUAS $presentlang"
+ fi
+ done
+ fi
+ CATALOGS=
+ if test -n "$INST_LINGUAS"; then
+ for lang in $INST_LINGUAS; do
+ CATALOGS="$CATALOGS $lang.gmo"
+ done
+ fi
+ test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
+ sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" -e "s|@POMAKEFILEDEPS@|$POMAKEFILEDEPS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
+ for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do
+ if test -f "$f"; then
+ case "$f" in
+ *.orig | *.bak | *~) ;;
+ *) cat "$f" >> "$ac_dir/Makefile" ;;
+ esac
+ fi
+ done
+ fi
+ ;;
+ esac
+ done ;;
+ tests/atconfig ) cat >tests/atconfig <<ATEOF
+# Configurable variable values for building test suites.
+# Generated by $0.
+# Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+
+# The test suite will define top_srcdir=$at_top_srcdir/../.. etc.
+at_testdir='tests'
+abs_builddir='$ac_abs_builddir'
+at_srcdir='$ac_srcdir'
+abs_srcdir='$ac_abs_srcdir'
+at_top_srcdir='$ac_top_srcdir'
+abs_top_srcdir='$ac_abs_top_srcdir'
+at_top_builddir='$ac_top_builddir'
+abs_top_builddir='$ac_abs_top_builddir'
+
+AUTOTEST_PATH='tests'
+
+SHELL=\${CONFIG_SHELL-'$SHELL'}
+ATEOF
+ ;;
+ esac
+done
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+{ (exit 0); exit 0; }
+_ACEOF
+chmod +x $CONFIG_STATUS
+ac_clean_files=$ac_clean_files_save
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded. So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status. When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+ ac_cs_success=:
+ ac_config_status_args=
+ test "$silent" = yes &&
+ ac_config_status_args="$ac_config_status_args --quiet"
+ exec 5>/dev/null
+ $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+ exec 5>>config.log
+ # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+ # would make configure fail if this is the last instruction.
+ $ac_cs_success || { (exit 1); exit 1; }
+fi
+
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..7804b02
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,144 @@
+# Configure template for GNU Bison. -*-Autoconf-*-
+#
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# This file uses AC_CONFIG_MACRO_DIR, so we need Autoconf 2.58 or better.
+# But Autoconf 2.58 has a bug in the way that it generates tests: it
+# puts the wrong absolute path names in the tests. So we need at
+# least Autoconf 2.59.
+AC_PREREQ(2.59)
+
+AC_INIT([GNU Bison], [2.3], [bug-bison@gnu.org])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
+
+# We don't have a file m4/Makefile.am, so we need Automake 1.8 or later.
+AM_INIT_AUTOMAKE([1.8 check-news readme-alpha dist-bzip2])
+AC_CONFIG_HEADERS([config.h:config.hin])
+
+gl_USE_SYSTEM_EXTENSIONS
+
+# Checks for the compiler.
+AC_PROG_CC
+AM_PROG_CC_STDC
+AC_ARG_ENABLE(gcc-warnings,
+[ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)],
+[case "${enableval}" in
+ yes|no) ;;
+ *) AC_MSG_ERROR([bad value ${enableval} for gcc-warnings option]) ;;
+ esac],
+ [enableval=no])
+if test "${enableval}" = yes; then
+ BISON_WARNING(-Werror)
+ AC_SUBST([WERROR_CFLAGS], [$WARNING_CFLAGS])
+ WARNING_CFLAGS=
+ BISON_WARNING(-W)
+ BISON_WARNING(-Wall)
+ BISON_WARNING(-Wcast-align)
+ BISON_WARNING(-Wcast-qual)
+ BISON_WARNING(-Wformat)
+ BISON_WARNING(-Wwrite-strings)
+ AC_SUBST([WARNING_CXXFLAGS], [$WARNING_CFLAGS])
+ # The following warnings are not suitable for C++.
+ BISON_WARNING(-Wbad-function-cast)
+ BISON_WARNING(-Wmissing-declarations)
+ BISON_WARNING(-Wmissing-prototypes)
+ BISON_WARNING(-Wshadow)
+ BISON_WARNING(-Wstrict-prototypes)
+ AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
+fi
+
+BISON_TEST_FOR_WORKING_C_COMPILER
+
+AC_ARG_ENABLE([yacc],
+ [AC_HELP_STRING([--disable-yacc],
+ [do not build a yacc command or an -ly library])],
+ , [enable_yacc=yes])
+case $enable_yacc in
+yes)
+ YACC_SCRIPT=yacc
+ YACC_LIBRARY=liby.a;;
+*)
+ YACC_SCRIPT=
+ YACC_LIBRARY=;;
+esac
+AC_SUBST([YACC_SCRIPT])
+AC_SUBST([YACC_LIBRARY])
+
+# Checks for programs.
+AC_PROG_LEX
+AC_PROG_YACC
+AC_PROG_RANLIB
+BISON_PROG_GNU_M4
+if test x"$ac_cv_prog_gnu_m4" != xyes; then
+ AC_MSG_ERROR([GNU M4 1.4 is required])
+fi
+AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.])
+
+# Checks for header files.
+AC_CHECK_HEADERS_ONCE([locale.h])
+AM_STDBOOL_H
+
+# Checks for compiler characteristics.
+AC_C_INLINE
+
+# Checks for types.
+AC_CHECK_TYPES([uintptr_t])
+
+# Checks for library functions.
+AC_CHECK_FUNCS_ONCE([setlocale])
+AM_WITH_DMALLOC
+BISON_PREREQ_SUBPIPE
+BISON_PREREQ_TIMEVAR
+
+# gnulib and gettext.
+GNULIB_AUTOCONF_SNIPPET
+# We use po/Makevars, so we need at least gettext 0.12.
+AM_GNU_GETTEXT_VERSION([0.12])
+BISON_I18N
+
+# Internationalized parsers.
+AC_CONFIG_FILES([runtime-po/Makefile.in])
+# Autoconf macros for packages using internationalized parsers.
+aclocaldir='${datadir}/aclocal'
+AC_SUBST([aclocaldir])
+
+# Initialize the test suite.
+AC_CONFIG_TESTDIR(tests)
+AC_CONFIG_FILES([tests/Makefile tests/atlocal])
+AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison])
+AC_CHECK_PROGS([VALGRIND], [valgrind])
+AC_PROG_CXX
+BISON_TEST_FOR_WORKING_CXX_COMPILER
+AM_MISSING_PROG([AUTOM4TE], [autom4te])
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new file mode 100644
index 0000000..b69236d
--- /dev/null
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+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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diff --git a/data/Makefile.am b/data/Makefile.am
new file mode 100644
index 0000000..7c4ccf9
--- /dev/null
+++ b/data/Makefile.am
@@ -0,0 +1,23 @@
+## Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301 USA
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+dist_pkgdata_DATA = README \
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diff --git a/data/Makefile.in b/data/Makefile.in
new file mode 100644
index 0000000..3a5f561
--- /dev/null
+++ b/data/Makefile.in
@@ -0,0 +1,412 @@
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+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+# This program is distributed in the hope that it will be useful,
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+ $(top_srcdir)/m4/stdbool.m4 $(top_srcdir)/m4/stdint_h_gl.m4 \
+ $(top_srcdir)/m4/stdio-safer.m4 $(top_srcdir)/m4/stpcpy.m4 \
+ $(top_srcdir)/m4/strdup.m4 $(top_srcdir)/m4/strerror.m4 \
+ $(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
+ $(top_srcdir)/m4/strtol.m4 $(top_srcdir)/m4/strtoul.m4 \
+ $(top_srcdir)/m4/strverscmp.m4 $(top_srcdir)/m4/subpipe.m4 \
+ $(top_srcdir)/m4/timevar.m4 $(top_srcdir)/m4/uintmax_t_gl.m4 \
+ $(top_srcdir)/m4/ulonglong_gl.m4 \
+ $(top_srcdir)/m4/unistd-safer.m4 $(top_srcdir)/m4/unistd_h.m4 \
+ $(top_srcdir)/m4/unlocked-io.m4 $(top_srcdir)/m4/warning.m4 \
+ $(top_srcdir)/m4/xalloc.m4 $(top_srcdir)/m4/xstrndup.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/build-aux/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+SOURCES =
+DIST_SOURCES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+ $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+ *) f=$$p;; \
+ esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(m4sugardir)" "$(DESTDIR)$(pkgdatadir)"
+dist_m4sugarDATA_INSTALL = $(INSTALL_DATA)
+dist_pkgdataDATA_INSTALL = $(INSTALL_DATA)
+DATA = $(dist_m4sugar_DATA) $(dist_pkgdata_DATA)
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMDEP_FALSE = @AMDEP_FALSE@
+AMDEP_TRUE = @AMDEP_TRUE@
+AMTAR = @AMTAR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOM4TE = @AUTOM4TE@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BISON_CXX_WORKS = @BISON_CXX_WORKS@
+BISON_CXX_WORKS_FALSE = @BISON_CXX_WORKS_FALSE@
+BISON_CXX_WORKS_TRUE = @BISON_CXX_WORKS_TRUE@
+BISON_LOCALEDIR = @BISON_LOCALEDIR@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CXX = @CXX@
+CXXDEPMODE = @CXXDEPMODE@
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+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
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+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+GCC = @GCC@
+GETOPT_H = @GETOPT_H@
+GMSGFMT = @GMSGFMT@
+HAVE__BOOL = @HAVE__BOOL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+INTLLIBS = @INTLLIBS@
+INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBICONV = @LIBICONV@
+LIBINTL = @LIBINTL@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LTLIBICONV = @LTLIBICONV@
+LTLIBINTL = @LTLIBINTL@
+LTLIBOBJS = @LTLIBOBJS@
+M4 = @M4@
+MAKEINFO = @MAKEINFO@
+MKINSTALLDIRS = @MKINSTALLDIRS@
+MSGFMT = @MSGFMT@
+MSGMERGE = @MSGMERGE@
+O0CFLAGS = @O0CFLAGS@
+O0CXXFLAGS = @O0CXXFLAGS@
+OBJEXT = @OBJEXT@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+POSUB = @POSUB@
+RANLIB = @RANLIB@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STDBOOL_H = @STDBOOL_H@
+STRIP = @STRIP@
+UNISTD_H = @UNISTD_H@
+USE_NLS = @USE_NLS@
+VALGRIND = @VALGRIND@
+VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
+WERROR_CFLAGS = @WERROR_CFLAGS@
+XGETTEXT = @XGETTEXT@
+YACC = @YACC@
+YACC_LIBRARY = @YACC_LIBRARY@
+YACC_SCRIPT = @YACC_SCRIPT@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_RANLIB = @ac_ct_RANLIB@
+ac_ct_STRIP = @ac_ct_STRIP@
+aclocaldir = @aclocaldir@
+am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
+am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
+am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
+am__fastdepCXX_TRUE = @am__fastdepCXX_TRUE@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+datadir = @datadir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+dist_pkgdata_DATA = README \
+ c.m4 yacc.c glr.c \
+ c++.m4 location.cc lalr1.cc glr.cc
+
+m4sugardir = $(pkgdatadir)/m4sugar
+dist_m4sugar_DATA = m4sugar/m4sugar.m4
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+ && exit 0; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu data/Makefile'; \
+ cd $(top_srcdir) && \
+ $(AUTOMAKE) --gnu data/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+ esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+uninstall-info-am:
+install-dist_m4sugarDATA: $(dist_m4sugar_DATA)
+ @$(NORMAL_INSTALL)
+ test -z "$(m4sugardir)" || $(mkdir_p) "$(DESTDIR)$(m4sugardir)"
+ @list='$(dist_m4sugar_DATA)'; for p in $$list; do \
+ if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+ f=$(am__strip_dir) \
+ echo " $(dist_m4sugarDATA_INSTALL) '$$d$$p' '$(DESTDIR)$(m4sugardir)/$$f'"; \
+ $(dist_m4sugarDATA_INSTALL) "$$d$$p" "$(DESTDIR)$(m4sugardir)/$$f"; \
+ done
+
+uninstall-dist_m4sugarDATA:
+ @$(NORMAL_UNINSTALL)
+ @list='$(dist_m4sugar_DATA)'; for p in $$list; do \
+ f=$(am__strip_dir) \
+ echo " rm -f '$(DESTDIR)$(m4sugardir)/$$f'"; \
+ rm -f "$(DESTDIR)$(m4sugardir)/$$f"; \
+ done
+install-dist_pkgdataDATA: $(dist_pkgdata_DATA)
+ @$(NORMAL_INSTALL)
+ test -z "$(pkgdatadir)" || $(mkdir_p) "$(DESTDIR)$(pkgdatadir)"
+ @list='$(dist_pkgdata_DATA)'; for p in $$list; do \
+ if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+ f=$(am__strip_dir) \
+ echo " $(dist_pkgdataDATA_INSTALL) '$$d$$p' '$(DESTDIR)$(pkgdatadir)/$$f'"; \
+ $(dist_pkgdataDATA_INSTALL) "$$d$$p" "$(DESTDIR)$(pkgdatadir)/$$f"; \
+ done
+
+uninstall-dist_pkgdataDATA:
+ @$(NORMAL_UNINSTALL)
+ @list='$(dist_pkgdata_DATA)'; for p in $$list; do \
+ f=$(am__strip_dir) \
+ echo " rm -f '$(DESTDIR)$(pkgdatadir)/$$f'"; \
+ rm -f "$(DESTDIR)$(pkgdatadir)/$$f"; \
+ done
+tags: TAGS
+TAGS:
+
+ctags: CTAGS
+CTAGS:
+
+
+distdir: $(DISTFILES)
+ $(mkdir_p) $(distdir)/m4sugar
+ @srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+ list='$(DISTFILES)'; for file in $$list; do \
+ case $$file in \
+ $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+ $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+ esac; \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+ dir="/$$dir"; \
+ $(mkdir_p) "$(distdir)$$dir"; \
+ else \
+ dir=''; \
+ fi; \
+ if test -d $$d/$$file; then \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(DATA)
+installdirs:
+ for dir in "$(DESTDIR)$(m4sugardir)" "$(DESTDIR)$(pkgdatadir)"; do \
+ test -z "$$dir" || $(mkdir_p) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-am
+ -rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am: install-dist_m4sugarDATA install-dist_pkgdataDATA
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-dist_m4sugarDATA uninstall-dist_pkgdataDATA \
+ uninstall-info-am
+
+.PHONY: all all-am check check-am clean clean-generic distclean \
+ distclean-generic distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am \
+ install-dist_m4sugarDATA install-dist_pkgdataDATA install-exec \
+ install-exec-am install-info install-info-am install-man \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-generic pdf pdf-am ps ps-am uninstall uninstall-am \
+ uninstall-dist_m4sugarDATA uninstall-dist_pkgdataDATA \
+ uninstall-info-am
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/data/README b/data/README
new file mode 100644
index 0000000..2267791
--- /dev/null
+++ b/data/README
@@ -0,0 +1,45 @@
+-*- outline -*-
+
+This directory contains Bison skeletons: the general shapes of the
+different parser kinds, that are specialized for specific grammars by
+the bison program.
+
+Currently, there are only three supported skeletons:
+
+- yacc.c
+ It used to be named bison.simple: it corresponds to C Yacc
+ compatible LALR(1) parsers.
+
+- lalr1.cc
+ Produces a C++ parser class. It is still very experimental, and not
+ yet supported. Please, subscribe to bison-patches@gnu.org.
+
+- glr.c
+ A Generalized LR C parser based on Bison's LALR(1) tables.
+
+These skeletons are the only ones supported by the Bison team.
+Because the interface between skeletons and the bison program is not
+finished, *we are not bound to it*. In particular, Bison is not
+mature enough for us to consider that ``foreign skeletons'' are
+supported.
+
+-----
+
+Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Bison.
+
+GNU Bison is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Bison is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Bison; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
diff --git a/data/c++.m4 b/data/c++.m4
new file mode 100644
index 0000000..57aee0c
--- /dev/null
+++ b/data/c++.m4
@@ -0,0 +1,122 @@
+m4_divert(-1) -*- Autoconf -*-
+
+# C++ skeleton for Bison
+
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+m4_include(b4_pkgdatadir/[c.m4])
+
+## ---------------- ##
+## Default values. ##
+## ---------------- ##
+
+# Default parser class name.
+m4_define_default([b4_parser_class_name], [parser])
+m4_define_default([b4_location_type], [location])
+m4_define_default([b4_filename_type], [std::string])
+m4_define_default([b4_namespace], m4_defn([b4_prefix]))
+
+
+# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -----------------------------------------------------
+# Output the definition of the tokens as enums.
+m4_define([b4_token_enums],
+[/* Tokens. */
+ enum yytokentype {
+m4_map_sep([ b4_token_enum], [,
+],
+ [$@])
+ };
+])
+
+
+## ----------------- ##
+## Semantic Values. ##
+## ----------------- ##
+
+
+# b4_lhs_value([TYPE])
+# --------------------
+# Expansion of $<TYPE>$.
+m4_define([b4_lhs_value],
+[(yyval[]m4_ifval([$1], [.$1]))])
+
+
+# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
+# --------------------------------------
+# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
+# symbols on RHS.
+m4_define([b4_rhs_value],
+[(yysemantic_stack_@{($1) - ($2)@}m4_ifval([$3], [.$3]))])
+
+# b4_lhs_location()
+# -----------------
+# Expansion of @$.
+m4_define([b4_lhs_location],
+[(yyloc)])
+
+
+# b4_rhs_location(RULE-LENGTH, NUM)
+# ---------------------------------
+# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
+# on RHS.
+m4_define([b4_rhs_location],
+[(yylocation_stack_@{($1) - ($2)@})])
+
+
+# b4_parse_param_decl
+# -------------------
+# Extra formal arguments of the constructor.
+# Change the parameter names from "foo" into "foo_yyarg", so that
+# there is no collision bw the user chosen attribute name, and the
+# argument name in the constructor.
+m4_define([b4_parse_param_decl],
+[m4_ifset([b4_parse_param],
+ [m4_map_sep([b4_parse_param_decl_1], [, ], [b4_parse_param])])])
+
+m4_define([b4_parse_param_decl_1],
+[$1_yyarg])
+
+
+
+# b4_parse_param_cons
+# -------------------
+# Extra initialisations of the constructor.
+m4_define([b4_parse_param_cons],
+ [m4_ifset([b4_parse_param],
+ [,
+ b4_cc_constructor_calls(b4_parse_param)])])
+m4_define([b4_cc_constructor_calls],
+ [m4_map_sep([b4_cc_constructor_call], [,
+ ], [$@])])
+m4_define([b4_cc_constructor_call],
+ [$2 ($2_yyarg)])
+
+# b4_parse_param_vars
+# -------------------
+# Extra instance variables.
+m4_define([b4_parse_param_vars],
+ [m4_ifset([b4_parse_param],
+ [
+ /* User arguments. */
+b4_cc_var_decls(b4_parse_param)])])
+m4_define([b4_cc_var_decls],
+ [m4_map_sep([b4_cc_var_decl], [
+], [$@])])
+m4_define([b4_cc_var_decl],
+ [ $1;])
diff --git a/data/c.m4 b/data/c.m4
new file mode 100644
index 0000000..f10e090
--- /dev/null
+++ b/data/c.m4
@@ -0,0 +1,534 @@
+m4_divert(-1) -*- Autoconf -*-
+
+# C M4 Macros for Bison.
+# Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+
+## ---------------- ##
+## Identification. ##
+## ---------------- ##
+
+# b4_copyright(TITLE, YEARS)
+# --------------------------
+m4_define([b4_copyright],
+[/* A Bison parser, made by GNU Bison b4_version. */
+
+/* $1
+
+m4_text_wrap([Copyright (C) $2 Free Software Foundation, Inc.], [ ])
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */])
+
+
+# b4_identification
+# -----------------
+m4_define([b4_identification],
+[/* Identify Bison output. */
+[#]define YYBISON 1
+
+/* Bison version. */
+[#]define YYBISON_VERSION "b4_version"
+
+/* Skeleton name. */
+[#]define YYSKELETON_NAME b4_skeleton
+
+/* Pure parsers. */
+[#]define YYPURE b4_pure_flag
+
+/* Using locations. */
+[#]define YYLSP_NEEDED b4_locations_flag
+])
+
+
+
+## ---------------- ##
+## Default values. ##
+## ---------------- ##
+
+m4_define_default([b4_epilogue], [])
+
+
+
+## ------------------------ ##
+## Pure/impure interfaces. ##
+## ------------------------ ##
+
+
+# b4_user_args
+# ------------
+m4_define([b4_user_args],
+[m4_ifset([b4_parse_param], [, b4_c_args(b4_parse_param)])])
+
+
+# b4_parse_param
+# --------------
+# If defined, b4_parse_param arrives double quoted, but below we prefer
+# it to be single quoted.
+m4_define_default([b4_parse_param])
+m4_define([b4_parse_param],
+b4_parse_param))
+
+
+# b4_parse_param_for(DECL, FORMAL, BODY)
+# ---------------------------------------
+# Iterate over the user parameters, binding the declaration to DECL,
+# the formal name to FORMAL, and evaluating the BODY.
+m4_define([b4_parse_param_for],
+[m4_foreach([$1_$2], m4_defn([b4_parse_param]),
+[m4_pushdef([$1], m4_fst($1_$2))dnl
+m4_pushdef([$2], m4_shift($1_$2))dnl
+$3[]dnl
+m4_popdef([$2])dnl
+m4_popdef([$1])dnl
+])])
+
+# b4_parse_param_use
+# ------------------
+# `YYUSE' all the parse-params.
+m4_define([b4_parse_param_use],
+[b4_parse_param_for([Decl], [Formal], [ YYUSE (Formal);
+])dnl
+])
+
+## ------------ ##
+## Data Types. ##
+## ------------ ##
+
+
+# b4_ints_in(INT1, INT2, LOW, HIGH)
+# ---------------------------------
+# Return 1 iff both INT1 and INT2 are in [LOW, HIGH], 0 otherwise.
+m4_define([b4_ints_in],
+[m4_eval([$3 <= $1 && $1 <= $4 && $3 <= $2 && $2 <= $4])])
+
+
+# b4_int_type(MIN, MAX)
+# ---------------------
+# Return the smallest int type able to handle numbers ranging from
+# MIN to MAX (included).
+m4_define([b4_int_type],
+[m4_if(b4_ints_in($@, [0], [255]), [1], [unsigned char],
+ b4_ints_in($@, [-128], [127]), [1], [signed char],
+
+ b4_ints_in($@, [0], [65535]), [1], [unsigned short int],
+ b4_ints_in($@, [-32768], [32767]), [1], [short int],
+
+ m4_eval([0 <= $1]), [1], [unsigned int],
+
+ [int])])
+
+
+# b4_int_type_for(NAME)
+# ---------------------
+# Return the smallest int type able to handle numbers ranging from
+# `NAME_min' to `NAME_max' (included).
+m4_define([b4_int_type_for],
+[b4_int_type($1_min, $1_max)])
+
+
+## ------------------ ##
+## Decoding options. ##
+## ------------------ ##
+
+# b4_flag_if(FLAG, IF-TRUE, IF-FALSE)
+# -----------------------------------
+# Run IF-TRUE if b4_FLAG_flag is 1, IF-FALSE if FLAG is 0, otherwise fail.
+m4_define([b4_flag_if],
+[m4_case(b4_$1_flag,
+ [0], [$3],
+ [1], [$2],
+ [m4_fatal([invalid $1 value: ]$1)])])
+
+
+# b4_define_flag_if(FLAG)
+# -----------------------
+# Define "b4_FLAG_if(IF-TRUE, IF-FALSE)" that depends on the
+# value of the Boolean FLAG.
+m4_define([b4_define_flag_if],
+[_b4_define_flag_if($[1], $[2], [$1])])
+
+# _b4_define_flag_if($1, $2, FLAG)
+# --------------------------------
+# This macro works around the impossibility to define macros
+# inside macros, because issuing `[$1]' is not possible in M4 :(.
+# This sucks hard, GNU M4 should really provide M5 like $$1.
+m4_define([_b4_define_flag_if],
+[m4_if([$1$2], $[1]$[2], [],
+ [m4_fatal([$0: Invalid arguments: $@])])dnl
+m4_define([b4_$3_if],
+ [b4_flag_if([$3], [$1], [$2])])])
+
+
+# b4_FLAG_if(IF-TRUE, IF-FALSE)
+# -----------------------------
+# Expand IF-TRUE, if FLAG is true, IF-FALSE otherwise.
+b4_define_flag_if([defines]) # Whether headers are requested.
+b4_define_flag_if([error_verbose]) # Wheter error are verbose.
+b4_define_flag_if([locations]) # Whether locations are tracked.
+b4_define_flag_if([pure]) # Whether the interface is pure.
+
+
+
+## ------------------------- ##
+## Assigning token numbers. ##
+## ------------------------- ##
+
+# b4_token_define(TOKEN-NAME, TOKEN-NUMBER)
+# -----------------------------------------
+# Output the definition of this token as #define.
+m4_define([b4_token_define],
+[#define $1 $2
+])
+
+
+# b4_token_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -------------------------------------------------------
+# Output the definition of the tokens (if there are) as #defines.
+m4_define([b4_token_defines],
+[m4_if([$@], [[]], [],
+[/* Tokens. */
+m4_map([b4_token_define], [$@])])
+])
+
+
+# b4_token_enum(TOKEN-NAME, TOKEN-NUMBER)
+# ---------------------------------------
+# Output the definition of this token as an enum.
+m4_define([b4_token_enum],
+[$1 = $2])
+
+
+# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -----------------------------------------------------
+# Output the definition of the tokens (if there are) as enums.
+m4_define([b4_token_enums],
+[m4_if([$@], [[]], [],
+[/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+m4_map_sep([ b4_token_enum], [,
+],
+ [$@])
+ };
+#endif
+])])
+
+
+# b4_token_enums_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -------------------------------------------------------------
+# Output the definition of the tokens (if there are) as enums and #defines.
+m4_define([b4_token_enums_defines],
+[b4_token_enums($@)b4_token_defines($@)
+])
+
+
+
+## --------------------------------------------- ##
+## Defining C functions in both K&R and ANSI-C. ##
+## --------------------------------------------- ##
+
+
+# b4_modern_c
+# -----------
+# A predicate useful in #if to determine whether C is ancient or modern.
+#
+# If __STDC__ is defined, the compiler is modern. IBM xlc 7.0 when run
+# as 'cc' doesn't define __STDC__ (or __STDC_VERSION__) for pedantic
+# reasons, but it defines __C99__FUNC__ so check that as well.
+# Microsoft C normally doesn't define these macros, but it defines _MSC_VER.
+# Consider a C++ compiler to be modern if it defines __cplusplus.
+#
+m4_define([b4_c_modern],
+ [[(defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)]])
+
+# b4_c_function_def(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# ----------------------------------------------------------
+# Declare the function NAME.
+m4_define([b4_c_function_def],
+[#if b4_c_modern
+b4_c_ansi_function_def($@)
+#else
+$2
+$1 (b4_c_knr_formal_names(m4_shiftn(2, $@)))
+b4_c_knr_formal_decls(m4_shiftn(2, $@))
+#endif[]dnl
+])
+
+
+# b4_c_ansi_function_def(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# ---------------------------------------------------------------
+# Declare the function NAME in ANSI.
+m4_define([b4_c_ansi_function_def],
+[$2
+$1 (b4_c_ansi_formals(m4_shiftn(2, $@)))[]dnl
+])
+
+
+# b4_c_ansi_formals([DECL1, NAME1], ...)
+# --------------------------------------
+# Output the arguments ANSI-C definition.
+m4_define([b4_c_ansi_formals],
+[m4_case([$@],
+ [], [void],
+ [[]], [void],
+ [m4_map_sep([b4_c_ansi_formal], [, ], [$@])])])
+
+m4_define([b4_c_ansi_formal],
+[$1])
+
+
+# b4_c_knr_formal_names([DECL1, NAME1], ...)
+# ------------------------------------------
+# Output the argument names.
+m4_define([b4_c_knr_formal_names],
+[m4_map_sep([b4_c_knr_formal_name], [, ], [$@])])
+
+m4_define([b4_c_knr_formal_name],
+[$2])
+
+
+# b4_c_knr_formal_decls([DECL1, NAME1], ...)
+# ------------------------------------------
+# Output the K&R argument declarations.
+m4_define([b4_c_knr_formal_decls],
+[m4_map_sep([b4_c_knr_formal_decl],
+ [
+],
+ [$@])])
+
+m4_define([b4_c_knr_formal_decl],
+[ $1;])
+
+
+
+## ------------------------------------------------------------ ##
+## Declaring (prototyping) C functions in both K&R and ANSI-C. ##
+## ------------------------------------------------------------ ##
+
+
+# b4_c_function_decl(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# -----------------------------------------------------------
+# Declare the function NAME.
+m4_define([b4_c_function_decl],
+[#if defined __STDC__ || defined __cplusplus
+b4_c_ansi_function_decl($@)
+#else
+$2 $1 ();
+#endif[]dnl
+])
+
+
+# b4_c_ansi_function_decl(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# ----------------------------------------------------------------
+# Declare the function NAME.
+m4_define([b4_c_ansi_function_decl],
+[$2 $1 (b4_c_ansi_formals(m4_shiftn(2, $@)));[]dnl
+])
+
+
+
+
+## --------------------- ##
+## Calling C functions. ##
+## --------------------- ##
+
+
+# b4_c_function_call(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# -----------------------------------------------------------
+# Call the function NAME with arguments NAME1, NAME2 etc.
+m4_define([b4_c_function_call],
+[$1 (b4_c_args(m4_shiftn(2, $@)))[]dnl
+])
+
+
+# b4_c_args([DECL1, NAME1], ...)
+# ------------------------------
+# Output the arguments NAME1, NAME2...
+m4_define([b4_c_args],
+[m4_map_sep([b4_c_arg], [, ], [$@])])
+
+m4_define([b4_c_arg],
+[$2])
+
+
+## ----------- ##
+## Synclines. ##
+## ----------- ##
+
+# b4_syncline(LINE, FILE)
+# -----------------------
+m4_define([b4_syncline],
+[b4_flag_if([synclines], [[#]line $1 $2])])
+
+
+
+## -------------- ##
+## User actions. ##
+## -------------- ##
+
+# b4_symbol_actions(FILENAME, LINENO,
+# SYMBOL-TAG, SYMBOL-NUM,
+# SYMBOL-ACTION, SYMBOL-TYPENAME)
+# -------------------------------------------------
+m4_define([b4_symbol_actions],
+[m4_pushdef([b4_dollar_dollar],
+ [m4_ifval([$6], [(yyvaluep->$6)], [(*yyvaluep)])])dnl
+m4_pushdef([b4_at_dollar], [(*yylocationp)])dnl
+ case $4: /* $3 */
+b4_syncline([$2], [$1])
+ $5;
+b4_syncline([@oline@], [@ofile@])
+ break;
+m4_popdef([b4_at_dollar])dnl
+m4_popdef([b4_dollar_dollar])dnl
+])
+
+
+# b4_yydestruct_generate(FUNCTION-DECLARATOR)
+# -------------------------------------------
+# Generate the "yydestruct" function, which declaration is issued using
+# FUNCTION-DECLARATOR, which may be "b4_c_ansi_function_def" for ISO C
+# or "b4_c_function_def" for K&R.
+m4_define_default([b4_yydestruct_generate],
+[[/*-----------------------------------------------.
+| Release the memory associated to this symbol. |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+]$1([yydestruct],
+ [static void],
+ [[const char *yymsg], [yymsg]],
+ [[int yytype], [yytype]],
+ [[YYSTYPE *yyvaluep], [yyvaluep]][]dnl
+b4_locations_if( [, [[YYLTYPE *yylocationp], [yylocationp]]])[]dnl
+m4_ifset([b4_parse_param], [, b4_parse_param]))[
+{
+ YYUSE (yyvaluep);
+]b4_locations_if([ YYUSE (yylocationp);
+])dnl
+b4_parse_param_use[]dnl
+[
+ if (!yymsg)
+ yymsg = "Deleting";
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+]m4_map([b4_symbol_actions], m4_defn([b4_symbol_destructors]))[
+ default:
+ break;
+ }
+}]dnl
+])
+
+
+# b4_yy_symbol_print_generate(FUNCTION-DECLARATOR)
+# ------------------------------------------------
+# Generate the "yy_symbol_print" function, which declaration is issued using
+# FUNCTION-DECLARATOR, which may be "b4_c_ansi_function_def" for ISO C
+# or "b4_c_function_def" for K&R.
+m4_define_default([b4_yy_symbol_print_generate],
+[[
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+/*ARGSUSED*/
+]$1([yy_symbol_value_print],
+ [static void],
+ [[FILE *yyoutput], [yyoutput]],
+ [[int yytype], [yytype]],
+ [[YYSTYPE const * const yyvaluep], [yyvaluep]][]dnl
+b4_locations_if([, [[YYLTYPE const * const yylocationp], [yylocationp]]])[]dnl
+m4_ifset([b4_parse_param], [, b4_parse_param]))[
+{
+ if (!yyvaluep)
+ return;
+]b4_locations_if([ YYUSE (yylocationp);
+])dnl
+b4_parse_param_use[]dnl
+[# ifdef YYPRINT
+ if (yytype < YYNTOKENS)
+ YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+ YYUSE (yyoutput);
+# endif
+ switch (yytype)
+ {
+]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
+[ default:
+ break;
+ }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+]$1([yy_symbol_print],
+ [static void],
+ [[FILE *yyoutput], [yyoutput]],
+ [[int yytype], [yytype]],
+ [[YYSTYPE const * const yyvaluep], [yyvaluep]][]dnl
+b4_locations_if([, [[YYLTYPE const * const yylocationp], [yylocationp]]])[]dnl
+m4_ifset([b4_parse_param], [, b4_parse_param]))[
+{
+ if (yytype < YYNTOKENS)
+ YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+ else
+ YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+]b4_locations_if([ YY_LOCATION_PRINT (yyoutput, *yylocationp);
+ YYFPRINTF (yyoutput, ": ");
+])dnl
+[ yy_symbol_value_print (yyoutput, yytype, yyvaluep]dnl
+b4_locations_if([, yylocationp])[]b4_user_args[);
+ YYFPRINTF (yyoutput, ")");
+}]dnl
+])
diff --git a/data/glr.c b/data/glr.c
new file mode 100644
index 0000000..b872bf4
--- /dev/null
+++ b/data/glr.c
@@ -0,0 +1,2616 @@
+m4_divert(-1) -*- C -*-
+
+# GLR skeleton for Bison
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+
+m4_include(b4_pkgdatadir/[c.m4])
+
+## ---------------- ##
+## Default values. ##
+## ---------------- ##
+
+# Stack parameters.
+m4_define_default([b4_stack_depth_max], [10000])
+m4_define_default([b4_stack_depth_init], [200])
+
+
+
+## ------------------------ ##
+## Pure/impure interfaces. ##
+## ------------------------ ##
+
+
+# b4_user_formals
+# ---------------
+# The possible parse-params formal arguments preceded by a comma.
+#
+# This is not shared with yacc.c in c.m4 because GLR relies on ISO C
+# formal argument declarations.
+m4_define([b4_user_formals],
+[m4_ifset([b4_parse_param], [, b4_c_ansi_formals(b4_parse_param)])])
+
+
+# b4_lex_param
+# ------------
+# Accumule in b4_lex_param all the yylex arguments.
+# Yes, this is quite ugly...
+m4_define([b4_lex_param],
+m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
+b4_locations_if([, [[YYLTYPE *], [&yylloc]]])])dnl
+m4_ifdef([b4_lex_param], [, ]b4_lex_param)))
+
+
+# b4_yyerror_args
+# ---------------
+# Optional effective arguments passed to yyerror: user args plus yylloc, and
+# a trailing comma.
+m4_define([b4_yyerror_args],
+[b4_pure_if([b4_locations_if([yylocp, ])])dnl
+m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
+
+
+# b4_lyyerror_args
+# ----------------
+# Same as above, but on the look-ahead, hence &yylloc instead of yylocp.
+m4_define([b4_lyyerror_args],
+[b4_pure_if([b4_locations_if([&yylloc, ])])dnl
+m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
+
+
+# b4_pure_args
+# ------------
+# Same as b4_yyerror_args, but with a leading comma.
+m4_define([b4_pure_args],
+[b4_pure_if([b4_locations_if([, yylocp])])[]b4_user_args])
+
+
+# b4_lpure_args
+# -------------
+# Same as above, but on the look-ahead, hence &yylloc instead of yylocp.
+m4_define([b4_lpure_args],
+[b4_pure_if([b4_locations_if([, &yylloc])])[]b4_user_args])
+
+
+# b4_pure_formals
+# ---------------
+# Arguments passed to yyerror: user formals plus yylocp.
+m4_define([b4_pure_formals],
+[b4_pure_if([b4_locations_if([, YYLTYPE *yylocp])])[]b4_user_formals])
+
+
+## ----------------- ##
+## Semantic Values. ##
+## ----------------- ##
+
+
+# b4_lhs_value([TYPE])
+# --------------------
+# Expansion of $<TYPE>$.
+m4_define([b4_lhs_value],
+[((*yyvalp)[]m4_ifval([$1], [.$1]))])
+
+
+# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
+# --------------------------------------
+# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
+# symbols on RHS.
+m4_define([b4_rhs_value],
+[(((yyGLRStackItem const *)yyvsp)@{YYFILL (($2) - ($1))@}.yystate.yysemantics.yysval[]m4_ifval([$3], [.$3]))])
+
+
+
+## ----------- ##
+## Locations. ##
+## ----------- ##
+
+# b4_lhs_location()
+# -----------------
+# Expansion of @$.
+m4_define([b4_lhs_location],
+[(*yylocp)])
+
+
+# b4_rhs_location(RULE-LENGTH, NUM)
+# ---------------------------------
+# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
+# on RHS.
+m4_define([b4_rhs_location],
+[(((yyGLRStackItem const *)yyvsp)@{YYFILL (($2) - ($1))@}.yystate.yyloc)])
+
+
+
+## -------------- ##
+## Output files. ##
+## -------------- ##
+
+# We do want M4 expansion after # for CPP macros.
+m4_changecom()
+m4_divert(0)dnl
+@output @output_parser_name@
+b4_copyright([Skeleton implementation for Bison GLR parsers in C],
+ [2002, 2003, 2004, 2005, 2006])
+[
+/* C GLR parser skeleton written by Paul Hilfinger. */
+
+]b4_identification
+
+m4_if(b4_prefix, [yy], [],
+[/* Substitute the variable and function names. */
+#define yyparse b4_prefix[]parse
+#define yylex b4_prefix[]lex
+#define yyerror b4_prefix[]error
+#define yylval b4_prefix[]lval
+#define yychar b4_prefix[]char
+#define yydebug b4_prefix[]debug
+#define yynerrs b4_prefix[]nerrs
+#define yylloc b4_prefix[]lloc])
+
+dnl # b4_shared_declarations
+dnl # ----------------------
+dnl # Declaration that might either go into the header (if --defines)
+dnl # or open coded in the parser body.
+m4_define([b4_shared_declarations],
+[b4_token_enums(b4_tokens)[
+
+/* Copy the first part of user declarations. */
+]b4_pre_prologue[
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+]m4_ifdef([b4_stype],
+[typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])
+b4_stype
+/* Line __line__ of glr.c. */
+b4_syncline([@oline@], [@ofile@])
+ YYSTYPE;],
+[typedef int YYSTYPE;])[
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+]b4_locations_if([
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+],[
+ char yydummy;
+])[
+} YYLTYPE;
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+]])
+
+b4_defines_if([#include @output_header_name@],
+ [b4_shared_declarations])[
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG ]b4_debug_flag[
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE ]b4_token_table[
+#endif
+
+/* Default (constant) value used for initialization for null
+ right-hand sides. Unlike the standard yacc.c template,
+ here we set the default value of $$ to a zeroed-out value.
+ Since the default value is undefined, this behavior is
+ technically correct. */
+static YYSTYPE yyval_default;
+
+/* Copy the second part of user declarations. */
+]b4_post_prologue[
+
+]/* Line __line__ of glr.c. */
+b4_syncline([@oline@], [@ofile@])
+[
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+#ifndef YY_
+# if YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(n) (n)
+#else
+]b4_c_function_def([YYID], [static int], [[int i], [i]])[
+{
+ return i;
+}
+#endif
+
+#ifndef YYFREE
+# define YYFREE free
+#endif
+#ifndef YYMALLOC
+# define YYMALLOC malloc
+#endif
+#ifndef YYREALLOC
+# define YYREALLOC realloc
+#endif
+
+#define YYSIZEMAX ((size_t) -1)
+
+#ifdef __cplusplus
+ typedef bool yybool;
+#else
+ typedef unsigned char yybool;
+#endif
+#define yytrue 1
+#define yyfalse 0
+
+#ifndef YYSETJMP
+# include <setjmp.h>
+# define YYJMP_BUF jmp_buf
+# define YYSETJMP(env) setjmp (env)
+# define YYLONGJMP(env, val) longjmp (env, val)
+#endif
+
+/*-----------------.
+| GCC extensions. |
+`-----------------*/
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later. */
+# if (! defined __GNUC__ || __GNUC__ < 2 \
+ || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
+# define __attribute__(Spec) /* empty */
+# endif
+#endif
+
+]b4_locations_if([#define YYOPTIONAL_LOC(Name) Name],[
+#ifdef __cplusplus
+# define YYOPTIONAL_LOC(Name) /* empty */
+#else
+# define YYOPTIONAL_LOC(Name) Name __attribute__ ((__unused__))
+#endif])[
+
+#ifndef YYASSERT
+# define YYASSERT(condition) ((void) ((condition) || (abort (), 0)))
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL ]b4_final_state_number[
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST ]b4_last[
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS ]b4_tokens_number[
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS ]b4_nterms_number[
+/* YYNRULES -- Number of rules. */
+#define YYNRULES ]b4_rules_number[
+/* YYNRULES -- Number of states. */
+#define YYNSTATES ]b4_states_number[
+/* YYMAXRHS -- Maximum number of symbols on right-hand side of rule. */
+#define YYMAXRHS ]b4_r2_max[
+/* YYMAXLEFT -- Maximum number of symbols to the left of a handle
+ accessed by $0, $-1, etc., in any rule. */
+#define YYMAXLEFT ]b4_max_left_semantic_context[
+
+/* YYTRANSLATE(X) -- Bison symbol number corresponding to X. */
+#define YYUNDEFTOK ]b4_undef_token_number[
+#define YYMAXUTOK ]b4_user_token_number_max[
+
+#define YYTRANSLATE(YYX) \
+ ((YYX <= 0) ? YYEOF : \
+ (unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
+{
+ ]b4_translate[
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
+{
+ ]b4_prhs[
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
+{
+ ]b4_rhs[
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const ]b4_int_type_for([b4_rline])[ yyrline[] =
+{
+ ]b4_rline[
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ ]b4_tname[
+};
+#endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const ]b4_int_type_for([b4_r1])[ yyr1[] =
+{
+ ]b4_r1[
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const ]b4_int_type_for([b4_r2])[ yyr2[] =
+{
+ ]b4_r2[
+};
+
+/* YYDPREC[RULE-NUM] -- Dynamic precedence of rule #RULE-NUM (0 if none). */
+static const ]b4_int_type_for([b4_dprec])[ yydprec[] =
+{
+ ]b4_dprec[
+};
+
+/* YYMERGER[RULE-NUM] -- Index of merging function for rule #RULE-NUM. */
+static const ]b4_int_type_for([b4_merger])[ yymerger[] =
+{
+ ]b4_merger[
+};
+
+/* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
+ doesn't specify something else to do. Zero means the default is an
+ error. */
+static const ]b4_int_type_for([b4_defact])[ yydefact[] =
+{
+ ]b4_defact[
+};
+
+/* YYPDEFGOTO[NTERM-NUM]. */
+static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
+{
+ ]b4_defgoto[
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF ]b4_pact_ninf[
+static const ]b4_int_type_for([b4_pact])[ yypact[] =
+{
+ ]b4_pact[
+};
+
+/* YYPGOTO[NTERM-NUM]. */
+static const ]b4_int_type_for([b4_pgoto])[ yypgoto[] =
+{
+ ]b4_pgoto[
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says.
+ If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF ]b4_table_ninf[
+static const ]b4_int_type_for([b4_table])[ yytable[] =
+{
+ ]b4_table[
+};
+
+/* YYCONFLP[YYPACT[STATE-NUM]] -- Pointer into YYCONFL of start of
+ list of conflicting reductions corresponding to action entry for
+ state STATE-NUM in yytable. 0 means no conflicts. The list in
+ yyconfl is terminated by a rule number of 0. */
+static const ]b4_int_type_for([b4_conflict_list_heads])[ yyconflp[] =
+{
+ ]b4_conflict_list_heads[
+};
+
+/* YYCONFL[I] -- lists of conflicting rule numbers, each terminated by
+ 0, pointed into by YYCONFLP. */
+]dnl Do not use b4_int_type_for here, since there are places where
+dnl pointers onto yyconfl are taken, which type is "short int *".
+dnl We probably ought to introduce a type for confl.
+[static const short int yyconfl[] =
+{
+ ]b4_conflicting_rules[
+};
+
+static const ]b4_int_type_for([b4_check])[ yycheck[] =
+{
+ ]b4_check[
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const ]b4_int_type_for([b4_stos])[ yystos[] =
+{
+ ]b4_stos[
+};
+
+
+/* Prevent warning if -Wmissing-prototypes. */
+]b4_c_ansi_function_decl([yyparse], [int], b4_parse_param)[
+
+/* Error token number */
+#define YYTERROR 1
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+]b4_locations_if([[
+#define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
+
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+#endif
+]],[
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) ((void) 0)
+#endif
+])[
+
+#ifndef YY_LOCATION_PRINT
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments. */
+#define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
+
+]b4_pure_if(
+[
+#undef yynerrs
+#define yynerrs (yystackp->yyerrcnt)
+#undef yychar
+#define yychar (yystackp->yyrawchar)
+#undef yylval
+#define yylval (yystackp->yyval)
+#undef yylloc
+#define yylloc (yystackp->yyloc)
+m4_if(b4_prefix[], [yy], [],
+[#define b4_prefix[]nerrs yynerrs
+#define b4_prefix[]char yychar
+#define b4_prefix[]lval yylval
+#define b4_prefix[]lloc yylloc])],
+[YYSTYPE yylval;
+
+YYLTYPE yylloc;
+
+int yynerrs;
+int yychar;])[
+
+static const int YYEOF = 0;
+static const int YYEMPTY = -2;
+
+typedef enum { yyok, yyaccept, yyabort, yyerr } YYRESULTTAG;
+
+#define YYCHK(YYE) \
+ do { YYRESULTTAG yyflag = YYE; if (yyflag != yyok) return yyflag; } \
+ while (YYID (0))
+
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+]b4_yy_symbol_print_generate([b4_c_ansi_function_def])[
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, Type, \
+ Value]b4_locations_if([, Location])[]b4_user_args[); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+
+#else /* !YYDEBUG */
+
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+
+#endif /* !YYDEBUG */
+
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH ]b4_stack_depth_init[
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
+
+ Do not make this value too large; the results are undefined if
+ SIZE_MAX < YYMAXDEPTH * sizeof (GLRStackItem)
+ evaluated with infinite-precision integer arithmetic. */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH ]b4_stack_depth_max[
+#endif
+
+/* Minimum number of free items on the stack allowed after an
+ allocation. This is to allow allocation and initialization
+ to be completed by functions that call yyexpandGLRStack before the
+ stack is expanded, thus insuring that all necessary pointers get
+ properly redirected to new data. */
+#define YYHEADROOM 2
+
+#ifndef YYSTACKEXPANDABLE
+# if (! defined __cplusplus \
+ || (]b4_locations_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+ && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))
+# define YYSTACKEXPANDABLE 1
+# else
+# define YYSTACKEXPANDABLE 0
+# endif
+#endif
+
+#if YYSTACKEXPANDABLE
+# define YY_RESERVE_GLRSTACK(Yystack) \
+ do { \
+ if (Yystack->yyspaceLeft < YYHEADROOM) \
+ yyexpandGLRStack (Yystack); \
+ } while (YYID (0))
+#else
+# define YY_RESERVE_GLRSTACK(Yystack) \
+ do { \
+ if (Yystack->yyspaceLeft < YYHEADROOM) \
+ yyMemoryExhausted (Yystack); \
+ } while (YYID (0))
+#endif
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static size_t
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ size_t yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return strlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+#endif /* !YYERROR_VERBOSE */
+
+/** State numbers, as in LALR(1) machine */
+typedef int yyStateNum;
+
+/** Rule numbers, as in LALR(1) machine */
+typedef int yyRuleNum;
+
+/** Grammar symbol */
+typedef short int yySymbol;
+
+/** Item references, as in LALR(1) machine */
+typedef short int yyItemNum;
+
+typedef struct yyGLRState yyGLRState;
+typedef struct yyGLRStateSet yyGLRStateSet;
+typedef struct yySemanticOption yySemanticOption;
+typedef union yyGLRStackItem yyGLRStackItem;
+typedef struct yyGLRStack yyGLRStack;
+
+struct yyGLRState {
+ /** Type tag: always true. */
+ yybool yyisState;
+ /** Type tag for yysemantics. If true, yysval applies, otherwise
+ * yyfirstVal applies. */
+ yybool yyresolved;
+ /** Number of corresponding LALR(1) machine state. */
+ yyStateNum yylrState;
+ /** Preceding state in this stack */
+ yyGLRState* yypred;
+ /** Source position of the first token produced by my symbol */
+ size_t yyposn;
+ union {
+ /** First in a chain of alternative reductions producing the
+ * non-terminal corresponding to this state, threaded through
+ * yynext. */
+ yySemanticOption* yyfirstVal;
+ /** Semantic value for this state. */
+ YYSTYPE yysval;
+ } yysemantics;
+ /** Source location for this state. */
+ YYLTYPE yyloc;
+};
+
+struct yyGLRStateSet {
+ yyGLRState** yystates;
+ /** During nondeterministic operation, yylookaheadNeeds tracks which
+ * stacks have actually needed the current lookahead. During deterministic
+ * operation, yylookaheadNeeds[0] is not maintained since it would merely
+ * duplicate yychar != YYEMPTY. */
+ yybool* yylookaheadNeeds;
+ size_t yysize, yycapacity;
+};
+
+struct yySemanticOption {
+ /** Type tag: always false. */
+ yybool yyisState;
+ /** Rule number for this reduction */
+ yyRuleNum yyrule;
+ /** The last RHS state in the list of states to be reduced. */
+ yyGLRState* yystate;
+ /** The lookahead for this reduction. */
+ int yyrawchar;
+ YYSTYPE yyval;
+ YYLTYPE yyloc;
+ /** Next sibling in chain of options. To facilitate merging,
+ * options are chained in decreasing order by address. */
+ yySemanticOption* yynext;
+};
+
+/** Type of the items in the GLR stack. The yyisState field
+ * indicates which item of the union is valid. */
+union yyGLRStackItem {
+ yyGLRState yystate;
+ yySemanticOption yyoption;
+};
+
+struct yyGLRStack {
+ int yyerrState;
+]b4_locations_if([[ /* To compute the location of the error token. */
+ yyGLRStackItem yyerror_range[3];]])[
+]b4_pure_if(
+[
+ int yyerrcnt;
+ int yyrawchar;
+ YYSTYPE yyval;
+ YYLTYPE yyloc;
+])[
+ YYJMP_BUF yyexception_buffer;
+ yyGLRStackItem* yyitems;
+ yyGLRStackItem* yynextFree;
+ size_t yyspaceLeft;
+ yyGLRState* yysplitPoint;
+ yyGLRState* yylastDeleted;
+ yyGLRStateSet yytops;
+};
+
+#if YYSTACKEXPANDABLE
+static void yyexpandGLRStack (yyGLRStack* yystackp);
+#endif
+
+static void yyFail (yyGLRStack* yystackp]b4_pure_formals[, const char* yymsg)
+ __attribute__ ((__noreturn__));
+static void
+yyFail (yyGLRStack* yystackp]b4_pure_formals[, const char* yymsg)
+{
+ if (yymsg != NULL)
+ yyerror (]b4_yyerror_args[yymsg);
+ YYLONGJMP (yystackp->yyexception_buffer, 1);
+}
+
+static void yyMemoryExhausted (yyGLRStack* yystackp)
+ __attribute__ ((__noreturn__));
+static void
+yyMemoryExhausted (yyGLRStack* yystackp)
+{
+ YYLONGJMP (yystackp->yyexception_buffer, 2);
+}
+
+#if YYDEBUG || YYERROR_VERBOSE
+/** A printable representation of TOKEN. */
+static inline const char*
+yytokenName (yySymbol yytoken)
+{
+ if (yytoken == YYEMPTY)
+ return "";
+
+ return yytname[yytoken];
+}
+#endif
+
+/** Fill in YYVSP[YYLOW1 .. YYLOW0-1] from the chain of states starting
+ * at YYVSP[YYLOW0].yystate.yypred. Leaves YYVSP[YYLOW1].yystate.yypred
+ * containing the pointer to the next state in the chain. */
+static void yyfillin (yyGLRStackItem *, int, int) __attribute__ ((__unused__));
+static void
+yyfillin (yyGLRStackItem *yyvsp, int yylow0, int yylow1)
+{
+ yyGLRState* s;
+ int i;
+ s = yyvsp[yylow0].yystate.yypred;
+ for (i = yylow0-1; i >= yylow1; i -= 1)
+ {
+ YYASSERT (s->yyresolved);
+ yyvsp[i].yystate.yyresolved = yytrue;
+ yyvsp[i].yystate.yysemantics.yysval = s->yysemantics.yysval;
+ yyvsp[i].yystate.yyloc = s->yyloc;
+ s = yyvsp[i].yystate.yypred = s->yypred;
+ }
+}
+
+/* Do nothing if YYNORMAL or if *YYLOW <= YYLOW1. Otherwise, fill in
+ * YYVSP[YYLOW1 .. *YYLOW-1] as in yyfillin and set *YYLOW = YYLOW1.
+ * For convenience, always return YYLOW1. */
+static inline int yyfill (yyGLRStackItem *, int *, int, yybool)
+ __attribute__ ((__unused__));
+static inline int
+yyfill (yyGLRStackItem *yyvsp, int *yylow, int yylow1, yybool yynormal)
+{
+ if (!yynormal && yylow1 < *yylow)
+ {
+ yyfillin (yyvsp, *yylow, yylow1);
+ *yylow = yylow1;
+ }
+ return yylow1;
+}
+
+/** Perform user action for rule number YYN, with RHS length YYRHSLEN,
+ * and top stack item YYVSP. YYLVALP points to place to put semantic
+ * value ($$), and yylocp points to place for location information
+ * (@@$). Returns yyok for normal return, yyaccept for YYACCEPT,
+ * yyerr for YYERROR, yyabort for YYABORT. */
+/*ARGSUSED*/ static YYRESULTTAG
+yyuserAction (yyRuleNum yyn, int yyrhslen, yyGLRStackItem* yyvsp,
+ YYSTYPE* yyvalp,
+ YYLTYPE* YYOPTIONAL_LOC (yylocp),
+ yyGLRStack* yystackp
+ ]b4_user_formals[)
+{
+ yybool yynormal __attribute__ ((__unused__)) =
+ (yystackp->yysplitPoint == NULL);
+ int yylow;
+]b4_parse_param_use[]dnl
+[# undef yyerrok
+# define yyerrok (yystackp->yyerrState = 0)
+# undef YYACCEPT
+# define YYACCEPT return yyaccept
+# undef YYABORT
+# define YYABORT return yyabort
+# undef YYERROR
+# define YYERROR return yyerrok, yyerr
+# undef YYRECOVERING
+# define YYRECOVERING() (yystackp->yyerrState != 0)
+# undef yyclearin
+# define yyclearin (yychar = YYEMPTY)
+# undef YYFILL
+# define YYFILL(N) yyfill (yyvsp, &yylow, N, yynormal)
+# undef YYBACKUP
+# define YYBACKUP(Token, Value) \
+ return yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")), \
+ yyerrok, yyerr
+
+ yylow = 1;
+ if (yyrhslen == 0)
+ *yyvalp = yyval_default;
+ else
+ *yyvalp = yyvsp[YYFILL (1-yyrhslen)].yystate.yysemantics.yysval;
+ YYLLOC_DEFAULT ((*yylocp), (yyvsp - yyrhslen), yyrhslen);
+]b4_locations_if([[ yystackp->yyerror_range[1].yystate.yyloc = *yylocp;
+]])[
+ switch (yyn)
+ {
+ ]b4_actions
+/* Line __line__ of glr.c. */
+b4_syncline([@oline@], [@ofile@])[
+ default: break;
+ }
+
+ return yyok;
+# undef yyerrok
+# undef YYABORT
+# undef YYACCEPT
+# undef YYERROR
+# undef YYBACKUP
+# undef yyclearin
+# undef YYRECOVERING
+}
+
+
+/*ARGSUSED*/ static void
+yyuserMerge (int yyn, YYSTYPE* yy0, YYSTYPE* yy1)
+{
+ YYUSE (yy0);
+ YYUSE (yy1);
+
+ switch (yyn)
+ {
+ ]b4_mergers[
+ default: break;
+ }
+}
+
+ /* Bison grammar-table manipulation. */
+
+]b4_yydestruct_generate([b4_c_ansi_function_def])[
+
+/** Number of symbols composing the right hand side of rule #RULE. */
+static inline int
+yyrhsLength (yyRuleNum yyrule)
+{
+ return yyr2[yyrule];
+}
+
+static void
+yydestroyGLRState (char const *yymsg, yyGLRState *yys]b4_user_formals[)
+{
+ if (yys->yyresolved)
+ yydestruct (yymsg, yystos[yys->yylrState],
+ &yys->yysemantics.yysval]b4_locations_if([, &yys->yyloc])[]b4_user_args[);
+ else
+ {
+#if YYDEBUG
+ if (yydebug)
+ {
+ if (yys->yysemantics.yyfirstVal)
+ YYFPRINTF (stderr, "%s unresolved ", yymsg);
+ else
+ YYFPRINTF (stderr, "%s incomplete ", yymsg);
+ yy_symbol_print (stderr, yystos[yys->yylrState],
+ NULL]b4_locations_if([, &yys->yyloc])[]b4_user_args[);
+ YYFPRINTF (stderr, "\n");
+ }
+#endif
+
+ if (yys->yysemantics.yyfirstVal)
+ {
+ yySemanticOption *yyoption = yys->yysemantics.yyfirstVal;
+ yyGLRState *yyrh;
+ int yyn;
+ for (yyrh = yyoption->yystate, yyn = yyrhsLength (yyoption->yyrule);
+ yyn > 0;
+ yyrh = yyrh->yypred, yyn -= 1)
+ yydestroyGLRState (yymsg, yyrh]b4_user_args[);
+ }
+ }
+}
+
+/** Left-hand-side symbol for rule #RULE. */
+static inline yySymbol
+yylhsNonterm (yyRuleNum yyrule)
+{
+ return yyr1[yyrule];
+}
+
+#define yyis_pact_ninf(yystate) \
+ ]m4_if(m4_eval(b4_pact_ninf < b4_pact_min), [1],
+ [0],
+ [((yystate) == YYPACT_NINF)])[
+
+/** True iff LR state STATE has only a default reduction (regardless
+ * of token). */
+static inline yybool
+yyisDefaultedState (yyStateNum yystate)
+{
+ return yyis_pact_ninf (yypact[yystate]);
+}
+
+/** The default reduction for STATE, assuming it has one. */
+static inline yyRuleNum
+yydefaultAction (yyStateNum yystate)
+{
+ return yydefact[yystate];
+}
+
+#define yyis_table_ninf(yytable_value) \
+ ]m4_if(m4_eval(b4_table_ninf < b4_table_min), [1],
+ [YYID (0)],
+ [((yytable_value) == YYTABLE_NINF)])[
+
+/** Set *YYACTION to the action to take in YYSTATE on seeing YYTOKEN.
+ * Result R means
+ * R < 0: Reduce on rule -R.
+ * R = 0: Error.
+ * R > 0: Shift to state R.
+ * Set *CONFLICTS to a pointer into yyconfl to 0-terminated list of
+ * conflicting reductions.
+ */
+static inline void
+yygetLRActions (yyStateNum yystate, int yytoken,
+ int* yyaction, const short int** yyconflicts)
+{
+ int yyindex = yypact[yystate] + yytoken;
+ if (yyindex < 0 || YYLAST < yyindex || yycheck[yyindex] != yytoken)
+ {
+ *yyaction = -yydefact[yystate];
+ *yyconflicts = yyconfl;
+ }
+ else if (! yyis_table_ninf (yytable[yyindex]))
+ {
+ *yyaction = yytable[yyindex];
+ *yyconflicts = yyconfl + yyconflp[yyindex];
+ }
+ else
+ {
+ *yyaction = 0;
+ *yyconflicts = yyconfl + yyconflp[yyindex];
+ }
+}
+
+static inline yyStateNum
+yyLRgotoState (yyStateNum yystate, yySymbol yylhs)
+{
+ int yyr;
+ yyr = yypgoto[yylhs - YYNTOKENS] + yystate;
+ if (0 <= yyr && yyr <= YYLAST && yycheck[yyr] == yystate)
+ return yytable[yyr];
+ else
+ return yydefgoto[yylhs - YYNTOKENS];
+}
+
+static inline yybool
+yyisShiftAction (int yyaction)
+{
+ return 0 < yyaction;
+}
+
+static inline yybool
+yyisErrorAction (int yyaction)
+{
+ return yyaction == 0;
+}
+
+ /* GLRStates */
+
+/** Return a fresh GLRStackItem. Callers should call
+ * YY_RESERVE_GLRSTACK afterwards to make sure there is sufficient
+ * headroom. */
+
+static inline yyGLRStackItem*
+yynewGLRStackItem (yyGLRStack* yystackp, yybool yyisState)
+{
+ yyGLRStackItem* yynewItem = yystackp->yynextFree;
+ yystackp->yyspaceLeft -= 1;
+ yystackp->yynextFree += 1;
+ yynewItem->yystate.yyisState = yyisState;
+ return yynewItem;
+}
+
+/** Add a new semantic action that will execute the action for rule
+ * RULENUM on the semantic values in RHS to the list of
+ * alternative actions for STATE. Assumes that RHS comes from
+ * stack #K of *STACKP. */
+static void
+yyaddDeferredAction (yyGLRStack* yystackp, size_t yyk, yyGLRState* yystate,
+ yyGLRState* rhs, yyRuleNum yyrule)
+{
+ yySemanticOption* yynewOption =
+ &yynewGLRStackItem (yystackp, yyfalse)->yyoption;
+ yynewOption->yystate = rhs;
+ yynewOption->yyrule = yyrule;
+ if (yystackp->yytops.yylookaheadNeeds[yyk])
+ {
+ yynewOption->yyrawchar = yychar;
+ yynewOption->yyval = yylval;
+ yynewOption->yyloc = yylloc;
+ }
+ else
+ yynewOption->yyrawchar = YYEMPTY;
+ yynewOption->yynext = yystate->yysemantics.yyfirstVal;
+ yystate->yysemantics.yyfirstVal = yynewOption;
+
+ YY_RESERVE_GLRSTACK (yystackp);
+}
+
+ /* GLRStacks */
+
+/** Initialize SET to a singleton set containing an empty stack. */
+static yybool
+yyinitStateSet (yyGLRStateSet* yyset)
+{
+ yyset->yysize = 1;
+ yyset->yycapacity = 16;
+ yyset->yystates = (yyGLRState**) YYMALLOC (16 * sizeof yyset->yystates[0]);
+ if (! yyset->yystates)
+ return yyfalse;
+ yyset->yystates[0] = NULL;
+ yyset->yylookaheadNeeds =
+ (yybool*) YYMALLOC (16 * sizeof yyset->yylookaheadNeeds[0]);
+ if (! yyset->yylookaheadNeeds)
+ {
+ YYFREE (yyset->yystates);
+ return yyfalse;
+ }
+ return yytrue;
+}
+
+static void yyfreeStateSet (yyGLRStateSet* yyset)
+{
+ YYFREE (yyset->yystates);
+ YYFREE (yyset->yylookaheadNeeds);
+}
+
+/** Initialize STACK to a single empty stack, with total maximum
+ * capacity for all stacks of SIZE. */
+static yybool
+yyinitGLRStack (yyGLRStack* yystackp, size_t yysize)
+{
+ yystackp->yyerrState = 0;
+ yynerrs = 0;
+ yystackp->yyspaceLeft = yysize;
+ yystackp->yyitems =
+ (yyGLRStackItem*) YYMALLOC (yysize * sizeof yystackp->yynextFree[0]);
+ if (!yystackp->yyitems)
+ return yyfalse;
+ yystackp->yynextFree = yystackp->yyitems;
+ yystackp->yysplitPoint = NULL;
+ yystackp->yylastDeleted = NULL;
+ return yyinitStateSet (&yystackp->yytops);
+}
+
+
+#if YYSTACKEXPANDABLE
+# define YYRELOC(YYFROMITEMS,YYTOITEMS,YYX,YYTYPE) \
+ &((YYTOITEMS) - ((YYFROMITEMS) - (yyGLRStackItem*) (YYX)))->YYTYPE
+
+/** If STACK is expandable, extend it. WARNING: Pointers into the
+ stack from outside should be considered invalid after this call.
+ We always expand when there are 1 or fewer items left AFTER an
+ allocation, so that we can avoid having external pointers exist
+ across an allocation. */
+static void
+yyexpandGLRStack (yyGLRStack* yystackp)
+{
+ yyGLRStackItem* yynewItems;
+ yyGLRStackItem* yyp0, *yyp1;
+ size_t yysize, yynewSize;
+ size_t yyn;
+ yysize = yystackp->yynextFree - yystackp->yyitems;
+ if (YYMAXDEPTH - YYHEADROOM < yysize)
+ yyMemoryExhausted (yystackp);
+ yynewSize = 2*yysize;
+ if (YYMAXDEPTH < yynewSize)
+ yynewSize = YYMAXDEPTH;
+ yynewItems = (yyGLRStackItem*) YYMALLOC (yynewSize * sizeof yynewItems[0]);
+ if (! yynewItems)
+ yyMemoryExhausted (yystackp);
+ for (yyp0 = yystackp->yyitems, yyp1 = yynewItems, yyn = yysize;
+ 0 < yyn;
+ yyn -= 1, yyp0 += 1, yyp1 += 1)
+ {
+ *yyp1 = *yyp0;
+ if (*(yybool *) yyp0)
+ {
+ yyGLRState* yys0 = &yyp0->yystate;
+ yyGLRState* yys1 = &yyp1->yystate;
+ if (yys0->yypred != NULL)
+ yys1->yypred =
+ YYRELOC (yyp0, yyp1, yys0->yypred, yystate);
+ if (! yys0->yyresolved && yys0->yysemantics.yyfirstVal != NULL)
+ yys1->yysemantics.yyfirstVal =
+ YYRELOC(yyp0, yyp1, yys0->yysemantics.yyfirstVal, yyoption);
+ }
+ else
+ {
+ yySemanticOption* yyv0 = &yyp0->yyoption;
+ yySemanticOption* yyv1 = &yyp1->yyoption;
+ if (yyv0->yystate != NULL)
+ yyv1->yystate = YYRELOC (yyp0, yyp1, yyv0->yystate, yystate);
+ if (yyv0->yynext != NULL)
+ yyv1->yynext = YYRELOC (yyp0, yyp1, yyv0->yynext, yyoption);
+ }
+ }
+ if (yystackp->yysplitPoint != NULL)
+ yystackp->yysplitPoint = YYRELOC (yystackp->yyitems, yynewItems,
+ yystackp->yysplitPoint, yystate);
+
+ for (yyn = 0; yyn < yystackp->yytops.yysize; yyn += 1)
+ if (yystackp->yytops.yystates[yyn] != NULL)
+ yystackp->yytops.yystates[yyn] =
+ YYRELOC (yystackp->yyitems, yynewItems,
+ yystackp->yytops.yystates[yyn], yystate);
+ YYFREE (yystackp->yyitems);
+ yystackp->yyitems = yynewItems;
+ yystackp->yynextFree = yynewItems + yysize;
+ yystackp->yyspaceLeft = yynewSize - yysize;
+}
+#endif
+
+static void
+yyfreeGLRStack (yyGLRStack* yystackp)
+{
+ YYFREE (yystackp->yyitems);
+ yyfreeStateSet (&yystackp->yytops);
+}
+
+/** Assuming that S is a GLRState somewhere on STACK, update the
+ * splitpoint of STACK, if needed, so that it is at least as deep as
+ * S. */
+static inline void
+yyupdateSplit (yyGLRStack* yystackp, yyGLRState* yys)
+{
+ if (yystackp->yysplitPoint != NULL && yystackp->yysplitPoint > yys)
+ yystackp->yysplitPoint = yys;
+}
+
+/** Invalidate stack #K in STACK. */
+static inline void
+yymarkStackDeleted (yyGLRStack* yystackp, size_t yyk)
+{
+ if (yystackp->yytops.yystates[yyk] != NULL)
+ yystackp->yylastDeleted = yystackp->yytops.yystates[yyk];
+ yystackp->yytops.yystates[yyk] = NULL;
+}
+
+/** Undelete the last stack that was marked as deleted. Can only be
+ done once after a deletion, and only when all other stacks have
+ been deleted. */
+static void
+yyundeleteLastStack (yyGLRStack* yystackp)
+{
+ if (yystackp->yylastDeleted == NULL || yystackp->yytops.yysize != 0)
+ return;
+ yystackp->yytops.yystates[0] = yystackp->yylastDeleted;
+ yystackp->yytops.yysize = 1;
+ YYDPRINTF ((stderr, "Restoring last deleted stack as stack #0.\n"));
+ yystackp->yylastDeleted = NULL;
+}
+
+static inline void
+yyremoveDeletes (yyGLRStack* yystackp)
+{
+ size_t yyi, yyj;
+ yyi = yyj = 0;
+ while (yyj < yystackp->yytops.yysize)
+ {
+ if (yystackp->yytops.yystates[yyi] == NULL)
+ {
+ if (yyi == yyj)
+ {
+ YYDPRINTF ((stderr, "Removing dead stacks.\n"));
+ }
+ yystackp->yytops.yysize -= 1;
+ }
+ else
+ {
+ yystackp->yytops.yystates[yyj] = yystackp->yytops.yystates[yyi];
+ /* In the current implementation, it's unnecessary to copy
+ yystackp->yytops.yylookaheadNeeds[yyi] since, after
+ yyremoveDeletes returns, the parser immediately either enters
+ deterministic operation or shifts a token. However, it doesn't
+ hurt, and the code might evolve to need it. */
+ yystackp->yytops.yylookaheadNeeds[yyj] =
+ yystackp->yytops.yylookaheadNeeds[yyi];
+ if (yyj != yyi)
+ {
+ YYDPRINTF ((stderr, "Rename stack %lu -> %lu.\n",
+ (unsigned long int) yyi, (unsigned long int) yyj));
+ }
+ yyj += 1;
+ }
+ yyi += 1;
+ }
+}
+
+/** Shift to a new state on stack #K of STACK, corresponding to LR state
+ * LRSTATE, at input position POSN, with (resolved) semantic value SVAL. */
+static inline void
+yyglrShift (yyGLRStack* yystackp, size_t yyk, yyStateNum yylrState,
+ size_t yyposn,
+ YYSTYPE* yyvalp, YYLTYPE* yylocp)
+{
+ yyGLRState* yynewState = &yynewGLRStackItem (yystackp, yytrue)->yystate;
+
+ yynewState->yylrState = yylrState;
+ yynewState->yyposn = yyposn;
+ yynewState->yyresolved = yytrue;
+ yynewState->yypred = yystackp->yytops.yystates[yyk];
+ yynewState->yysemantics.yysval = *yyvalp;
+ yynewState->yyloc = *yylocp;
+ yystackp->yytops.yystates[yyk] = yynewState;
+
+ YY_RESERVE_GLRSTACK (yystackp);
+}
+
+/** Shift stack #K of YYSTACK, to a new state corresponding to LR
+ * state YYLRSTATE, at input position YYPOSN, with the (unresolved)
+ * semantic value of YYRHS under the action for YYRULE. */
+static inline void
+yyglrShiftDefer (yyGLRStack* yystackp, size_t yyk, yyStateNum yylrState,
+ size_t yyposn, yyGLRState* rhs, yyRuleNum yyrule)
+{
+ yyGLRState* yynewState = &yynewGLRStackItem (yystackp, yytrue)->yystate;
+
+ yynewState->yylrState = yylrState;
+ yynewState->yyposn = yyposn;
+ yynewState->yyresolved = yyfalse;
+ yynewState->yypred = yystackp->yytops.yystates[yyk];
+ yynewState->yysemantics.yyfirstVal = NULL;
+ yystackp->yytops.yystates[yyk] = yynewState;
+
+ /* Invokes YY_RESERVE_GLRSTACK. */
+ yyaddDeferredAction (yystackp, yyk, yynewState, rhs, yyrule);
+}
+
+/** Pop the symbols consumed by reduction #RULE from the top of stack
+ * #K of STACK, and perform the appropriate semantic action on their
+ * semantic values. Assumes that all ambiguities in semantic values
+ * have been previously resolved. Set *VALP to the resulting value,
+ * and *LOCP to the computed location (if any). Return value is as
+ * for userAction. */
+static inline YYRESULTTAG
+yydoAction (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
+ YYSTYPE* yyvalp, YYLTYPE* yylocp]b4_user_formals[)
+{
+ int yynrhs = yyrhsLength (yyrule);
+
+ if (yystackp->yysplitPoint == NULL)
+ {
+ /* Standard special case: single stack. */
+ yyGLRStackItem* rhs = (yyGLRStackItem*) yystackp->yytops.yystates[yyk];
+ YYASSERT (yyk == 0);
+ yystackp->yynextFree -= yynrhs;
+ yystackp->yyspaceLeft += yynrhs;
+ yystackp->yytops.yystates[0] = & yystackp->yynextFree[-1].yystate;
+ return yyuserAction (yyrule, yynrhs, rhs,
+ yyvalp, yylocp, yystackp]b4_user_args[);
+ }
+ else
+ {
+ /* At present, doAction is never called in nondeterministic
+ * mode, so this branch is never taken. It is here in
+ * anticipation of a future feature that will allow immediate
+ * evaluation of selected actions in nondeterministic mode. */
+ int yyi;
+ yyGLRState* yys;
+ yyGLRStackItem yyrhsVals[YYMAXRHS + YYMAXLEFT + 1];
+ yys = yyrhsVals[YYMAXRHS + YYMAXLEFT].yystate.yypred
+ = yystackp->yytops.yystates[yyk];]b4_locations_if([[
+ if (yynrhs == 0)
+ /* Set default location. */
+ yyrhsVals[YYMAXRHS + YYMAXLEFT - 1].yystate.yyloc = yys->yyloc;]])[
+ for (yyi = 0; yyi < yynrhs; yyi += 1)
+ {
+ yys = yys->yypred;
+ YYASSERT (yys);
+ }
+ yyupdateSplit (yystackp, yys);
+ yystackp->yytops.yystates[yyk] = yys;
+ return yyuserAction (yyrule, yynrhs, yyrhsVals + YYMAXRHS + YYMAXLEFT - 1,
+ yyvalp, yylocp, yystackp]b4_user_args[);
+ }
+}
+
+#if !YYDEBUG
+# define YY_REDUCE_PRINT(Args)
+#else
+# define YY_REDUCE_PRINT(Args) \
+do { \
+ if (yydebug) \
+ yy_reduce_print Args; \
+} while (YYID (0))
+
+/*----------------------------------------------------------.
+| Report that the RULE is going to be reduced on stack #K. |
+`----------------------------------------------------------*/
+
+/*ARGSUSED*/ static inline void
+yy_reduce_print (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
+ YYSTYPE* yyvalp, YYLTYPE* yylocp]b4_user_formals[)
+{
+ int yynrhs = yyrhsLength (yyrule);
+ yybool yynormal __attribute__ ((__unused__)) =
+ (yystackp->yysplitPoint == NULL);
+ yyGLRStackItem* yyvsp = (yyGLRStackItem*) yystackp->yytops.yystates[yyk];
+ int yylow = 1;
+ int yyi;
+ YYUSE (yyvalp);
+ YYUSE (yylocp);
+]b4_parse_param_use[]dnl
+[ YYFPRINTF (stderr, "Reducing stack %lu by rule %d (line %lu):\n",
+ (unsigned long int) yyk, yyrule - 1,
+ (unsigned long int) yyrline[yyrule]);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ fprintf (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &]b4_rhs_value(yynrhs, yyi + 1)[
+ ]b4_locations_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
+ b4_user_args[);
+ fprintf (stderr, "\n");
+ }
+}
+#endif
+
+/** Pop items off stack #K of STACK according to grammar rule RULE,
+ * and push back on the resulting nonterminal symbol. Perform the
+ * semantic action associated with RULE and store its value with the
+ * newly pushed state, if FORCEEVAL or if STACK is currently
+ * unambiguous. Otherwise, store the deferred semantic action with
+ * the new state. If the new state would have an identical input
+ * position, LR state, and predecessor to an existing state on the stack,
+ * it is identified with that existing state, eliminating stack #K from
+ * the STACK. In this case, the (necessarily deferred) semantic value is
+ * added to the options for the existing state's semantic value.
+ */
+static inline YYRESULTTAG
+yyglrReduce (yyGLRStack* yystackp, size_t yyk, yyRuleNum yyrule,
+ yybool yyforceEval]b4_user_formals[)
+{
+ size_t yyposn = yystackp->yytops.yystates[yyk]->yyposn;
+
+ if (yyforceEval || yystackp->yysplitPoint == NULL)
+ {
+ YYSTYPE yysval;
+ YYLTYPE yyloc;
+
+ YY_REDUCE_PRINT ((yystackp, yyk, yyrule, &yysval, &yyloc]b4_user_args[));
+ YYCHK (yydoAction (yystackp, yyk, yyrule, &yysval,
+ &yyloc]b4_user_args[));
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyrule], &yysval, &yyloc);
+ yyglrShift (yystackp, yyk,
+ yyLRgotoState (yystackp->yytops.yystates[yyk]->yylrState,
+ yylhsNonterm (yyrule)),
+ yyposn, &yysval, &yyloc);
+ }
+ else
+ {
+ size_t yyi;
+ int yyn;
+ yyGLRState* yys, *yys0 = yystackp->yytops.yystates[yyk];
+ yyStateNum yynewLRState;
+
+ for (yys = yystackp->yytops.yystates[yyk], yyn = yyrhsLength (yyrule);
+ 0 < yyn; yyn -= 1)
+ {
+ yys = yys->yypred;
+ YYASSERT (yys);
+ }
+ yyupdateSplit (yystackp, yys);
+ yynewLRState = yyLRgotoState (yys->yylrState, yylhsNonterm (yyrule));
+ YYDPRINTF ((stderr,
+ "Reduced stack %lu by rule #%d; action deferred. Now in state %d.\n",
+ (unsigned long int) yyk, yyrule - 1, yynewLRState));
+ for (yyi = 0; yyi < yystackp->yytops.yysize; yyi += 1)
+ if (yyi != yyk && yystackp->yytops.yystates[yyi] != NULL)
+ {
+ yyGLRState* yyp, *yysplit = yystackp->yysplitPoint;
+ yyp = yystackp->yytops.yystates[yyi];
+ while (yyp != yys && yyp != yysplit && yyp->yyposn >= yyposn)
+ {
+ if (yyp->yylrState == yynewLRState && yyp->yypred == yys)
+ {
+ yyaddDeferredAction (yystackp, yyk, yyp, yys0, yyrule);
+ yymarkStackDeleted (yystackp, yyk);
+ YYDPRINTF ((stderr, "Merging stack %lu into stack %lu.\n",
+ (unsigned long int) yyk,
+ (unsigned long int) yyi));
+ return yyok;
+ }
+ yyp = yyp->yypred;
+ }
+ }
+ yystackp->yytops.yystates[yyk] = yys;
+ yyglrShiftDefer (yystackp, yyk, yynewLRState, yyposn, yys0, yyrule);
+ }
+ return yyok;
+}
+
+static size_t
+yysplitStack (yyGLRStack* yystackp, size_t yyk)
+{
+ if (yystackp->yysplitPoint == NULL)
+ {
+ YYASSERT (yyk == 0);
+ yystackp->yysplitPoint = yystackp->yytops.yystates[yyk];
+ }
+ if (yystackp->yytops.yysize >= yystackp->yytops.yycapacity)
+ {
+ yyGLRState** yynewStates;
+ yybool* yynewLookaheadNeeds;
+
+ yynewStates = NULL;
+
+ if (yystackp->yytops.yycapacity
+ > (YYSIZEMAX / (2 * sizeof yynewStates[0])))
+ yyMemoryExhausted (yystackp);
+ yystackp->yytops.yycapacity *= 2;
+
+ yynewStates =
+ (yyGLRState**) YYREALLOC (yystackp->yytops.yystates,
+ (yystackp->yytops.yycapacity
+ * sizeof yynewStates[0]));
+ if (yynewStates == NULL)
+ yyMemoryExhausted (yystackp);
+ yystackp->yytops.yystates = yynewStates;
+
+ yynewLookaheadNeeds =
+ (yybool*) YYREALLOC (yystackp->yytops.yylookaheadNeeds,
+ (yystackp->yytops.yycapacity
+ * sizeof yynewLookaheadNeeds[0]));
+ if (yynewLookaheadNeeds == NULL)
+ yyMemoryExhausted (yystackp);
+ yystackp->yytops.yylookaheadNeeds = yynewLookaheadNeeds;
+ }
+ yystackp->yytops.yystates[yystackp->yytops.yysize]
+ = yystackp->yytops.yystates[yyk];
+ yystackp->yytops.yylookaheadNeeds[yystackp->yytops.yysize]
+ = yystackp->yytops.yylookaheadNeeds[yyk];
+ yystackp->yytops.yysize += 1;
+ return yystackp->yytops.yysize-1;
+}
+
+/** True iff Y0 and Y1 represent identical options at the top level.
+ * That is, they represent the same rule applied to RHS symbols
+ * that produce the same terminal symbols. */
+static yybool
+yyidenticalOptions (yySemanticOption* yyy0, yySemanticOption* yyy1)
+{
+ if (yyy0->yyrule == yyy1->yyrule)
+ {
+ yyGLRState *yys0, *yys1;
+ int yyn;
+ for (yys0 = yyy0->yystate, yys1 = yyy1->yystate,
+ yyn = yyrhsLength (yyy0->yyrule);
+ yyn > 0;
+ yys0 = yys0->yypred, yys1 = yys1->yypred, yyn -= 1)
+ if (yys0->yyposn != yys1->yyposn)
+ return yyfalse;
+ return yytrue;
+ }
+ else
+ return yyfalse;
+}
+
+/** Assuming identicalOptions (Y0,Y1), destructively merge the
+ * alternative semantic values for the RHS-symbols of Y1 and Y0. */
+static void
+yymergeOptionSets (yySemanticOption* yyy0, yySemanticOption* yyy1)
+{
+ yyGLRState *yys0, *yys1;
+ int yyn;
+ for (yys0 = yyy0->yystate, yys1 = yyy1->yystate,
+ yyn = yyrhsLength (yyy0->yyrule);
+ yyn > 0;
+ yys0 = yys0->yypred, yys1 = yys1->yypred, yyn -= 1)
+ {
+ if (yys0 == yys1)
+ break;
+ else if (yys0->yyresolved)
+ {
+ yys1->yyresolved = yytrue;
+ yys1->yysemantics.yysval = yys0->yysemantics.yysval;
+ }
+ else if (yys1->yyresolved)
+ {
+ yys0->yyresolved = yytrue;
+ yys0->yysemantics.yysval = yys1->yysemantics.yysval;
+ }
+ else
+ {
+ yySemanticOption** yyz0p;
+ yySemanticOption* yyz1;
+ yyz0p = &yys0->yysemantics.yyfirstVal;
+ yyz1 = yys1->yysemantics.yyfirstVal;
+ while (YYID (yytrue))
+ {
+ if (yyz1 == *yyz0p || yyz1 == NULL)
+ break;
+ else if (*yyz0p == NULL)
+ {
+ *yyz0p = yyz1;
+ break;
+ }
+ else if (*yyz0p < yyz1)
+ {
+ yySemanticOption* yyz = *yyz0p;
+ *yyz0p = yyz1;
+ yyz1 = yyz1->yynext;
+ (*yyz0p)->yynext = yyz;
+ }
+ yyz0p = &(*yyz0p)->yynext;
+ }
+ yys1->yysemantics.yyfirstVal = yys0->yysemantics.yyfirstVal;
+ }
+ }
+}
+
+/** Y0 and Y1 represent two possible actions to take in a given
+ * parsing state; return 0 if no combination is possible,
+ * 1 if user-mergeable, 2 if Y0 is preferred, 3 if Y1 is preferred. */
+static int
+yypreference (yySemanticOption* y0, yySemanticOption* y1)
+{
+ yyRuleNum r0 = y0->yyrule, r1 = y1->yyrule;
+ int p0 = yydprec[r0], p1 = yydprec[r1];
+
+ if (p0 == p1)
+ {
+ if (yymerger[r0] == 0 || yymerger[r0] != yymerger[r1])
+ return 0;
+ else
+ return 1;
+ }
+ if (p0 == 0 || p1 == 0)
+ return 0;
+ if (p0 < p1)
+ return 3;
+ if (p1 < p0)
+ return 2;
+ return 0;
+}
+
+static YYRESULTTAG yyresolveValue (yyGLRState* yys,
+ yyGLRStack* yystackp]b4_user_formals[);
+
+
+/** Resolve the previous N states starting at and including state S. If result
+ * != yyok, some states may have been left unresolved possibly with empty
+ * semantic option chains. Regardless of whether result = yyok, each state
+ * has been left with consistent data so that yydestroyGLRState can be invoked
+ * if necessary. */
+static YYRESULTTAG
+yyresolveStates (yyGLRState* yys, int yyn,
+ yyGLRStack* yystackp]b4_user_formals[)
+{
+ if (0 < yyn)
+ {
+ YYASSERT (yys->yypred);
+ YYCHK (yyresolveStates (yys->yypred, yyn-1, yystackp]b4_user_args[));
+ if (! yys->yyresolved)
+ YYCHK (yyresolveValue (yys, yystackp]b4_user_args[));
+ }
+ return yyok;
+}
+
+/** Resolve the states for the RHS of OPT, perform its user action, and return
+ * the semantic value and location. Regardless of whether result = yyok, all
+ * RHS states have been destroyed (assuming the user action destroys all RHS
+ * semantic values if invoked). */
+static YYRESULTTAG
+yyresolveAction (yySemanticOption* yyopt, yyGLRStack* yystackp,
+ YYSTYPE* yyvalp, YYLTYPE* yylocp]b4_user_formals[)
+{
+ yyGLRStackItem yyrhsVals[YYMAXRHS + YYMAXLEFT + 1];
+ int yynrhs;
+ int yychar_current;
+ YYSTYPE yylval_current;
+ YYLTYPE yylloc_current;
+ YYRESULTTAG yyflag;
+
+ yynrhs = yyrhsLength (yyopt->yyrule);
+ yyflag = yyresolveStates (yyopt->yystate, yynrhs, yystackp]b4_user_args[);
+ if (yyflag != yyok)
+ {
+ yyGLRState *yys;
+ for (yys = yyopt->yystate; yynrhs > 0; yys = yys->yypred, yynrhs -= 1)
+ yydestroyGLRState ("Cleanup: popping", yys]b4_user_args[);
+ return yyflag;
+ }
+
+ yyrhsVals[YYMAXRHS + YYMAXLEFT].yystate.yypred = yyopt->yystate;]b4_locations_if([[
+ if (yynrhs == 0)
+ /* Set default location. */
+ yyrhsVals[YYMAXRHS + YYMAXLEFT - 1].yystate.yyloc = yyopt->yystate->yyloc;]])[
+ yychar_current = yychar;
+ yylval_current = yylval;
+ yylloc_current = yylloc;
+ yychar = yyopt->yyrawchar;
+ yylval = yyopt->yyval;
+ yylloc = yyopt->yyloc;
+ yyflag = yyuserAction (yyopt->yyrule, yynrhs,
+ yyrhsVals + YYMAXRHS + YYMAXLEFT - 1,
+ yyvalp, yylocp, yystackp]b4_user_args[);
+ yychar = yychar_current;
+ yylval = yylval_current;
+ yylloc = yylloc_current;
+ return yyflag;
+}
+
+#if YYDEBUG
+static void
+yyreportTree (yySemanticOption* yyx, int yyindent)
+{
+ int yynrhs = yyrhsLength (yyx->yyrule);
+ int yyi;
+ yyGLRState* yys;
+ yyGLRState* yystates[1 + YYMAXRHS];
+ yyGLRState yyleftmost_state;
+
+ for (yyi = yynrhs, yys = yyx->yystate; 0 < yyi; yyi -= 1, yys = yys->yypred)
+ yystates[yyi] = yys;
+ if (yys == NULL)
+ {
+ yyleftmost_state.yyposn = 0;
+ yystates[0] = &yyleftmost_state;
+ }
+ else
+ yystates[0] = yys;
+
+ if (yyx->yystate->yyposn < yys->yyposn + 1)
+ YYFPRINTF (stderr, "%*s%s -> <Rule %d, empty>\n",
+ yyindent, "", yytokenName (yylhsNonterm (yyx->yyrule)),
+ yyx->yyrule - 1);
+ else
+ YYFPRINTF (stderr, "%*s%s -> <Rule %d, tokens %lu .. %lu>\n",
+ yyindent, "", yytokenName (yylhsNonterm (yyx->yyrule)),
+ yyx->yyrule - 1, (unsigned long int) (yys->yyposn + 1),
+ (unsigned long int) yyx->yystate->yyposn);
+ for (yyi = 1; yyi <= yynrhs; yyi += 1)
+ {
+ if (yystates[yyi]->yyresolved)
+ {
+ if (yystates[yyi-1]->yyposn+1 > yystates[yyi]->yyposn)
+ YYFPRINTF (stderr, "%*s%s <empty>\n", yyindent+2, "",
+ yytokenName (yyrhs[yyprhs[yyx->yyrule]+yyi-1]));
+ else
+ YYFPRINTF (stderr, "%*s%s <tokens %lu .. %lu>\n", yyindent+2, "",
+ yytokenName (yyrhs[yyprhs[yyx->yyrule]+yyi-1]),
+ (unsigned long int) (yystates[yyi - 1]->yyposn + 1),
+ (unsigned long int) yystates[yyi]->yyposn);
+ }
+ else
+ yyreportTree (yystates[yyi]->yysemantics.yyfirstVal, yyindent+2);
+ }
+}
+#endif
+
+/*ARGSUSED*/ static YYRESULTTAG
+yyreportAmbiguity (yySemanticOption* yyx0,
+ yySemanticOption* yyx1]b4_pure_formals[)
+{
+ YYUSE (yyx0);
+ YYUSE (yyx1);
+
+#if YYDEBUG
+ YYFPRINTF (stderr, "Ambiguity detected.\n");
+ YYFPRINTF (stderr, "Option 1,\n");
+ yyreportTree (yyx0, 2);
+ YYFPRINTF (stderr, "\nOption 2,\n");
+ yyreportTree (yyx1, 2);
+ YYFPRINTF (stderr, "\n");
+#endif
+
+ yyerror (]b4_yyerror_args[YY_("syntax is ambiguous"));
+ return yyabort;
+}
+
+/** Starting at and including state S1, resolve the location for each of the
+ * previous N1 states that is unresolved. The first semantic option of a state
+ * is always chosen. */
+static void
+yyresolveLocations (yyGLRState* yys1, int yyn1,
+ yyGLRStack *yystackp]b4_user_formals[)
+{
+ if (0 < yyn1)
+ {
+ yyresolveLocations (yys1->yypred, yyn1 - 1, yystackp]b4_user_args[);
+ if (!yys1->yyresolved)
+ {
+ yySemanticOption *yyoption;
+ yyGLRStackItem yyrhsloc[1 + YYMAXRHS];
+ int yynrhs;
+ int yychar_current;
+ YYSTYPE yylval_current;
+ YYLTYPE yylloc_current;
+ yyoption = yys1->yysemantics.yyfirstVal;
+ YYASSERT (yyoption != NULL);
+ yynrhs = yyrhsLength (yyoption->yyrule);
+ if (yynrhs > 0)
+ {
+ yyGLRState *yys;
+ int yyn;
+ yyresolveLocations (yyoption->yystate, yynrhs,
+ yystackp]b4_user_args[);
+ for (yys = yyoption->yystate, yyn = yynrhs;
+ yyn > 0;
+ yys = yys->yypred, yyn -= 1)
+ yyrhsloc[yyn].yystate.yyloc = yys->yyloc;
+ }
+ else
+ {
+ /* Both yyresolveAction and yyresolveLocations traverse the GSS
+ in reverse rightmost order. It is only necessary to invoke
+ yyresolveLocations on a subforest for which yyresolveAction
+ would have been invoked next had an ambiguity not been
+ detected. Thus the location of the previous state (but not
+ necessarily the previous state itself) is guaranteed to be
+ resolved already. */
+ yyGLRState *yyprevious = yyoption->yystate;
+ yyrhsloc[0].yystate.yyloc = yyprevious->yyloc;
+ }
+ yychar_current = yychar;
+ yylval_current = yylval;
+ yylloc_current = yylloc;
+ yychar = yyoption->yyrawchar;
+ yylval = yyoption->yyval;
+ yylloc = yyoption->yyloc;
+ YYLLOC_DEFAULT ((yys1->yyloc), yyrhsloc, yynrhs);
+ yychar = yychar_current;
+ yylval = yylval_current;
+ yylloc = yylloc_current;
+ }
+ }
+}
+
+/** Resolve the ambiguity represented in state S, perform the indicated
+ * actions, and set the semantic value of S. If result != yyok, the chain of
+ * semantic options in S has been cleared instead or it has been left
+ * unmodified except that redundant options may have been removed. Regardless
+ * of whether result = yyok, S has been left with consistent data so that
+ * yydestroyGLRState can be invoked if necessary. */
+static YYRESULTTAG
+yyresolveValue (yyGLRState* yys, yyGLRStack* yystackp]b4_user_formals[)
+{
+ yySemanticOption* yyoptionList = yys->yysemantics.yyfirstVal;
+ yySemanticOption* yybest;
+ yySemanticOption** yypp;
+ yybool yymerge;
+ YYSTYPE yysval;
+ YYRESULTTAG yyflag;
+ YYLTYPE *yylocp = &yys->yyloc;
+
+ yybest = yyoptionList;
+ yymerge = yyfalse;
+ for (yypp = &yyoptionList->yynext; *yypp != NULL; )
+ {
+ yySemanticOption* yyp = *yypp;
+
+ if (yyidenticalOptions (yybest, yyp))
+ {
+ yymergeOptionSets (yybest, yyp);
+ *yypp = yyp->yynext;
+ }
+ else
+ {
+ switch (yypreference (yybest, yyp))
+ {
+ case 0:
+ yyresolveLocations (yys, 1, yystackp]b4_user_args[);
+ return yyreportAmbiguity (yybest, yyp]b4_pure_args[);
+ break;
+ case 1:
+ yymerge = yytrue;
+ break;
+ case 2:
+ break;
+ case 3:
+ yybest = yyp;
+ yymerge = yyfalse;
+ break;
+ default:
+ /* This cannot happen so it is not worth a YYASSERT (yyfalse),
+ but some compilers complain if the default case is
+ omitted. */
+ break;
+ }
+ yypp = &yyp->yynext;
+ }
+ }
+
+ if (yymerge)
+ {
+ yySemanticOption* yyp;
+ int yyprec = yydprec[yybest->yyrule];
+ yyflag = yyresolveAction (yybest, yystackp, &yysval,
+ yylocp]b4_user_args[);
+ if (yyflag == yyok)
+ for (yyp = yybest->yynext; yyp != NULL; yyp = yyp->yynext)
+ {
+ if (yyprec == yydprec[yyp->yyrule])
+ {
+ YYSTYPE yysval_other;
+ YYLTYPE yydummy;
+ yyflag = yyresolveAction (yyp, yystackp, &yysval_other,
+ &yydummy]b4_user_args[);
+ if (yyflag != yyok)
+ {
+ yydestruct ("Cleanup: discarding incompletely merged value for",
+ yystos[yys->yylrState],
+ &yysval]b4_locations_if([, yylocp])[]b4_user_args[);
+ break;
+ }
+ yyuserMerge (yymerger[yyp->yyrule], &yysval, &yysval_other);
+ }
+ }
+ }
+ else
+ yyflag = yyresolveAction (yybest, yystackp, &yysval, yylocp]b4_user_args[);
+
+ if (yyflag == yyok)
+ {
+ yys->yyresolved = yytrue;
+ yys->yysemantics.yysval = yysval;
+ }
+ else
+ yys->yysemantics.yyfirstVal = NULL;
+ return yyflag;
+}
+
+static YYRESULTTAG
+yyresolveStack (yyGLRStack* yystackp]b4_user_formals[)
+{
+ if (yystackp->yysplitPoint != NULL)
+ {
+ yyGLRState* yys;
+ int yyn;
+
+ for (yyn = 0, yys = yystackp->yytops.yystates[0];
+ yys != yystackp->yysplitPoint;
+ yys = yys->yypred, yyn += 1)
+ continue;
+ YYCHK (yyresolveStates (yystackp->yytops.yystates[0], yyn, yystackp
+ ]b4_user_args[));
+ }
+ return yyok;
+}
+
+static void
+yycompressStack (yyGLRStack* yystackp)
+{
+ yyGLRState* yyp, *yyq, *yyr;
+
+ if (yystackp->yytops.yysize != 1 || yystackp->yysplitPoint == NULL)
+ return;
+
+ for (yyp = yystackp->yytops.yystates[0], yyq = yyp->yypred, yyr = NULL;
+ yyp != yystackp->yysplitPoint;
+ yyr = yyp, yyp = yyq, yyq = yyp->yypred)
+ yyp->yypred = yyr;
+
+ yystackp->yyspaceLeft += yystackp->yynextFree - yystackp->yyitems;
+ yystackp->yynextFree = ((yyGLRStackItem*) yystackp->yysplitPoint) + 1;
+ yystackp->yyspaceLeft -= yystackp->yynextFree - yystackp->yyitems;
+ yystackp->yysplitPoint = NULL;
+ yystackp->yylastDeleted = NULL;
+
+ while (yyr != NULL)
+ {
+ yystackp->yynextFree->yystate = *yyr;
+ yyr = yyr->yypred;
+ yystackp->yynextFree->yystate.yypred = &yystackp->yynextFree[-1].yystate;
+ yystackp->yytops.yystates[0] = &yystackp->yynextFree->yystate;
+ yystackp->yynextFree += 1;
+ yystackp->yyspaceLeft -= 1;
+ }
+}
+
+static YYRESULTTAG
+yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
+ size_t yyposn]b4_pure_formals[)
+{
+ int yyaction;
+ const short int* yyconflicts;
+ yyRuleNum yyrule;
+
+ while (yystackp->yytops.yystates[yyk] != NULL)
+ {
+ yyStateNum yystate = yystackp->yytops.yystates[yyk]->yylrState;
+ YYDPRINTF ((stderr, "Stack %lu Entering state %d\n",
+ (unsigned long int) yyk, yystate));
+
+ YYASSERT (yystate != YYFINAL);
+
+ if (yyisDefaultedState (yystate))
+ {
+ yyrule = yydefaultAction (yystate);
+ if (yyrule == 0)
+ {
+ YYDPRINTF ((stderr, "Stack %lu dies.\n",
+ (unsigned long int) yyk));
+ yymarkStackDeleted (yystackp, yyk);
+ return yyok;
+ }
+ YYCHK (yyglrReduce (yystackp, yyk, yyrule, yyfalse]b4_user_args[));
+ }
+ else
+ {
+ yySymbol yytoken;
+ yystackp->yytops.yylookaheadNeeds[yyk] = yytrue;
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+ else
+ yytoken = YYTRANSLATE (yychar);
+ yygetLRActions (yystate, yytoken, &yyaction, &yyconflicts);
+
+ while (*yyconflicts != 0)
+ {
+ size_t yynewStack = yysplitStack (yystackp, yyk);
+ YYDPRINTF ((stderr, "Splitting off stack %lu from %lu.\n",
+ (unsigned long int) yynewStack,
+ (unsigned long int) yyk));
+ YYCHK (yyglrReduce (yystackp, yynewStack,
+ *yyconflicts, yyfalse]b4_user_args[));
+ YYCHK (yyprocessOneStack (yystackp, yynewStack,
+ yyposn]b4_pure_args[));
+ yyconflicts += 1;
+ }
+
+ if (yyisShiftAction (yyaction))
+ break;
+ else if (yyisErrorAction (yyaction))
+ {
+ YYDPRINTF ((stderr, "Stack %lu dies.\n",
+ (unsigned long int) yyk));
+ yymarkStackDeleted (yystackp, yyk);
+ break;
+ }
+ else
+ YYCHK (yyglrReduce (yystackp, yyk, -yyaction,
+ yyfalse]b4_user_args[));
+ }
+ }
+ return yyok;
+}
+
+/*ARGSUSED*/ static void
+yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
+{
+ if (yystackp->yyerrState == 0)
+ {
+#if YYERROR_VERBOSE
+ int yyn;
+ yyn = yypact[yystackp->yytops.yystates[0]->yylrState];
+ if (YYPACT_NINF < yyn && yyn <= YYLAST)
+ {
+ yySymbol yytoken = YYTRANSLATE (yychar);
+ size_t yysize0 = yytnamerr (NULL, yytokenName (yytoken));
+ size_t yysize = yysize0;
+ size_t yysize1;
+ yybool yysize_overflow = yyfalse;
+ char* yymsg = NULL;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ static char const yyexpecting[] = ", expecting %s";
+ static char const yyor[] = " or %s";
+ char yyformat[sizeof yyunexpected
+ + sizeof yyexpecting - 1
+ + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+ * (sizeof yyor - 1))];
+ char const *yyprefix = yyexpecting;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytokenName (yytoken);
+ yyfmt = yystpcpy (yyformat, yyunexpected);
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ yyformat[sizeof yyunexpected - 1] = '\0';
+ break;
+ }
+ yyarg[yycount++] = yytokenName (yyx);
+ yysize1 = yysize + yytnamerr (NULL, yytokenName (yyx));
+ yysize_overflow |= yysize1 < yysize;
+ yysize = yysize1;
+ yyfmt = yystpcpy (yyfmt, yyprefix);
+ yyprefix = yyor;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + strlen (yyf);
+ yysize_overflow |= yysize1 < yysize;
+ yysize = yysize1;
+
+ if (!yysize_overflow)
+ yymsg = (char *) YYMALLOC (yysize);
+
+ if (yymsg)
+ {
+ char *yyp = yymsg;
+ int yyi = 0;
+ while ((*yyp = *yyf))
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
+ yyerror (]b4_lyyerror_args[yymsg);
+ YYFREE (yymsg);
+ }
+ else
+ {
+ yyerror (]b4_lyyerror_args[YY_("syntax error"));
+ yyMemoryExhausted (yystackp);
+ }
+ }
+ else
+#endif /* YYERROR_VERBOSE */
+ yyerror (]b4_lyyerror_args[YY_("syntax error"));
+ yynerrs += 1;
+ }
+}
+
+/* Recover from a syntax error on *YYSTACKP, assuming that *YYSTACKP->YYTOKENP,
+ yylval, and yylloc are the syntactic category, semantic value, and location
+ of the look-ahead. */
+/*ARGSUSED*/ static void
+yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
+{
+ size_t yyk;
+ int yyj;
+
+ if (yystackp->yyerrState == 3)
+ /* We just shifted the error token and (perhaps) took some
+ reductions. Skip tokens until we can proceed. */
+ while (YYID (yytrue))
+ {
+ yySymbol yytoken;
+ if (yychar == YYEOF)
+ yyFail (yystackp][]b4_lpure_args[, NULL);
+ if (yychar != YYEMPTY)
+ {]b4_locations_if([[
+ /* We throw away the lookahead, but the error range
+ of the shifted error token must take it into account. */
+ yyGLRState *yys = yystackp->yytops.yystates[0];
+ yyGLRStackItem yyerror_range[3];
+ yyerror_range[1].yystate.yyloc = yys->yyloc;
+ yyerror_range[2].yystate.yyloc = yylloc;
+ YYLLOC_DEFAULT ((yys->yyloc), yyerror_range, 2);]])[
+ yytoken = YYTRANSLATE (yychar);
+ yydestruct ("Error: discarding",
+ yytoken, &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
+ }
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ yyj = yypact[yystackp->yytops.yystates[0]->yylrState];
+ if (yyis_pact_ninf (yyj))
+ return;
+ yyj += yytoken;
+ if (yyj < 0 || YYLAST < yyj || yycheck[yyj] != yytoken)
+ {
+ if (yydefact[yystackp->yytops.yystates[0]->yylrState] != 0)
+ return;
+ }
+ else if (yytable[yyj] != 0 && ! yyis_table_ninf (yytable[yyj]))
+ return;
+ }
+
+ /* Reduce to one stack. */
+ for (yyk = 0; yyk < yystackp->yytops.yysize; yyk += 1)
+ if (yystackp->yytops.yystates[yyk] != NULL)
+ break;
+ if (yyk >= yystackp->yytops.yysize)
+ yyFail (yystackp][]b4_lpure_args[, NULL);
+ for (yyk += 1; yyk < yystackp->yytops.yysize; yyk += 1)
+ yymarkStackDeleted (yystackp, yyk);
+ yyremoveDeletes (yystackp);
+ yycompressStack (yystackp);
+
+ /* Now pop stack until we find a state that shifts the error token. */
+ yystackp->yyerrState = 3;
+ while (yystackp->yytops.yystates[0] != NULL)
+ {
+ yyGLRState *yys = yystackp->yytops.yystates[0];
+ yyj = yypact[yys->yylrState];
+ if (! yyis_pact_ninf (yyj))
+ {
+ yyj += YYTERROR;
+ if (0 <= yyj && yyj <= YYLAST && yycheck[yyj] == YYTERROR
+ && yyisShiftAction (yytable[yyj]))
+ {
+ /* Shift the error token having adjusted its location. */
+ YYLTYPE yyerrloc;]b4_locations_if([[
+ yystackp->yyerror_range[2].yystate.yyloc = yylloc;
+ YYLLOC_DEFAULT (yyerrloc, (yystackp->yyerror_range), 2);]])[
+ YY_SYMBOL_PRINT ("Shifting", yystos[yytable[yyj]],
+ &yylval, &yyerrloc);
+ yyglrShift (yystackp, 0, yytable[yyj],
+ yys->yyposn, &yylval, &yyerrloc);
+ yys = yystackp->yytops.yystates[0];
+ break;
+ }
+ }
+]b4_locations_if([[ yystackp->yyerror_range[1].yystate.yyloc = yys->yyloc;]])[
+ yydestroyGLRState ("Error: popping", yys]b4_user_args[);
+ yystackp->yytops.yystates[0] = yys->yypred;
+ yystackp->yynextFree -= 1;
+ yystackp->yyspaceLeft += 1;
+ }
+ if (yystackp->yytops.yystates[0] == NULL)
+ yyFail (yystackp][]b4_lpure_args[, NULL);
+}
+
+#define YYCHK1(YYE) \
+ do { \
+ switch (YYE) { \
+ case yyok: \
+ break; \
+ case yyabort: \
+ goto yyabortlab; \
+ case yyaccept: \
+ goto yyacceptlab; \
+ case yyerr: \
+ goto yyuser_error; \
+ default: \
+ goto yybuglab; \
+ } \
+ } while (YYID (0))
+
+
+/*----------.
+| yyparse. |
+`----------*/
+
+]b4_c_ansi_function_def([yyparse], [int], b4_parse_param)[
+{
+ int yyresult;
+ yyGLRStack yystack;
+ yyGLRStack* const yystackp = &yystack;
+ size_t yyposn;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yychar = YYEMPTY;
+ yylval = yyval_default;
+]b4_locations_if([
+#if YYLTYPE_IS_TRIVIAL
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = 0;
+#endif
+])
+m4_ifdef([b4_initial_action], [
+m4_pushdef([b4_at_dollar], [yylloc])dnl
+m4_pushdef([b4_dollar_dollar], [yylval])dnl
+ /* User initialization code. */
+ b4_initial_action
+m4_popdef([b4_dollar_dollar])dnl
+m4_popdef([b4_at_dollar])dnl
+/* Line __line__ of glr.c. */
+b4_syncline([@oline@], [@ofile@])])dnl
+[
+ if (! yyinitGLRStack (yystackp, YYINITDEPTH))
+ goto yyexhaustedlab;
+ switch (YYSETJMP (yystack.yyexception_buffer))
+ {
+ case 0: break;
+ case 1: goto yyabortlab;
+ case 2: goto yyexhaustedlab;
+ default: goto yybuglab;
+ }
+ yyglrShift (&yystack, 0, 0, 0, &yylval, &yylloc);
+ yyposn = 0;
+
+ while (YYID (yytrue))
+ {
+ /* For efficiency, we have two loops, the first of which is
+ specialized to deterministic operation (single stack, no
+ potential ambiguity). */
+ /* Standard mode */
+ while (YYID (yytrue))
+ {
+ yyRuleNum yyrule;
+ int yyaction;
+ const short int* yyconflicts;
+
+ yyStateNum yystate = yystack.yytops.yystates[0]->yylrState;
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+ if (yystate == YYFINAL)
+ goto yyacceptlab;
+ if (yyisDefaultedState (yystate))
+ {
+ yyrule = yydefaultAction (yystate);
+ if (yyrule == 0)
+ {
+]b4_locations_if([[ yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
+ yyreportSyntaxError (&yystack]b4_user_args[);
+ goto yyuser_error;
+ }
+ YYCHK1 (yyglrReduce (&yystack, 0, yyrule, yytrue]b4_user_args[));
+ }
+ else
+ {
+ yySymbol yytoken;
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+ else
+ yytoken = YYTRANSLATE (yychar);
+ yygetLRActions (yystate, yytoken, &yyaction, &yyconflicts);
+ if (*yyconflicts != 0)
+ break;
+ if (yyisShiftAction (yyaction))
+ {
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+ if (yychar != YYEOF)
+ yychar = YYEMPTY;
+ yyposn += 1;
+ yyglrShift (&yystack, 0, yyaction, yyposn, &yylval, &yylloc);
+ if (0 < yystack.yyerrState)
+ yystack.yyerrState -= 1;
+ }
+ else if (yyisErrorAction (yyaction))
+ {
+]b4_locations_if([[ yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
+ yyreportSyntaxError (&yystack]b4_user_args[);
+ goto yyuser_error;
+ }
+ else
+ YYCHK1 (yyglrReduce (&yystack, 0, -yyaction, yytrue]b4_user_args[));
+ }
+ }
+
+ while (YYID (yytrue))
+ {
+ yySymbol yytoken_to_shift;
+ size_t yys;
+
+ for (yys = 0; yys < yystack.yytops.yysize; yys += 1)
+ yystackp->yytops.yylookaheadNeeds[yys] = yychar != YYEMPTY;
+
+ /* yyprocessOneStack returns one of three things:
+
+ - An error flag. If the caller is yyprocessOneStack, it
+ immediately returns as well. When the caller is finally
+ yyparse, it jumps to an error label via YYCHK1.
+
+ - yyok, but yyprocessOneStack has invoked yymarkStackDeleted
+ (&yystack, yys), which sets the top state of yys to NULL. Thus,
+ yyparse's following invocation of yyremoveDeletes will remove
+ the stack.
+
+ - yyok, when ready to shift a token.
+
+ Except in the first case, yyparse will invoke yyremoveDeletes and
+ then shift the next token onto all remaining stacks. This
+ synchronization of the shift (that is, after all preceding
+ reductions on all stacks) helps prevent double destructor calls
+ on yylval in the event of memory exhaustion. */
+
+ for (yys = 0; yys < yystack.yytops.yysize; yys += 1)
+ YYCHK1 (yyprocessOneStack (&yystack, yys, yyposn]b4_lpure_args[));
+ yyremoveDeletes (&yystack);
+ if (yystack.yytops.yysize == 0)
+ {
+ yyundeleteLastStack (&yystack);
+ if (yystack.yytops.yysize == 0)
+ yyFail (&yystack][]b4_lpure_args[, YY_("syntax error"));
+ YYCHK1 (yyresolveStack (&yystack]b4_user_args[));
+ YYDPRINTF ((stderr, "Returning to deterministic operation.\n"));
+]b4_locations_if([[ yystack.yyerror_range[1].yystate.yyloc = yylloc;]])[
+ yyreportSyntaxError (&yystack]b4_user_args[);
+ goto yyuser_error;
+ }
+
+ /* If any yyglrShift call fails, it will fail after shifting. Thus,
+ a copy of yylval will already be on stack 0 in the event of a
+ failure in the following loop. Thus, yychar is set to YYEMPTY
+ before the loop to make sure the user destructor for yylval isn't
+ called twice. */
+ yytoken_to_shift = YYTRANSLATE (yychar);
+ yychar = YYEMPTY;
+ yyposn += 1;
+ for (yys = 0; yys < yystack.yytops.yysize; yys += 1)
+ {
+ int yyaction;
+ const short int* yyconflicts;
+ yyStateNum yystate = yystack.yytops.yystates[yys]->yylrState;
+ yygetLRActions (yystate, yytoken_to_shift, &yyaction,
+ &yyconflicts);
+ /* Note that yyconflicts were handled by yyprocessOneStack. */
+ YYDPRINTF ((stderr, "On stack %lu, ", (unsigned long int) yys));
+ YY_SYMBOL_PRINT ("shifting", yytoken_to_shift, &yylval, &yylloc);
+ yyglrShift (&yystack, yys, yyaction, yyposn,
+ &yylval, &yylloc);
+ YYDPRINTF ((stderr, "Stack %lu now in state #%d\n",
+ (unsigned long int) yys,
+ yystack.yytops.yystates[yys]->yylrState));
+ }
+
+ if (yystack.yytops.yysize == 1)
+ {
+ YYCHK1 (yyresolveStack (&yystack]b4_user_args[));
+ YYDPRINTF ((stderr, "Returning to deterministic operation.\n"));
+ yycompressStack (&yystack);
+ break;
+ }
+ }
+ continue;
+ yyuser_error:
+ yyrecoverSyntaxError (&yystack]b4_user_args[);
+ yyposn = yystack.yytops.yystates[0]->yyposn;
+ }
+
+ yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+ yybuglab:
+ YYASSERT (yyfalse);
+ goto yyabortlab;
+
+ yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+ yyexhaustedlab:
+ yyerror (]b4_lyyerror_args[YY_("memory exhausted"));
+ yyresult = 2;
+ goto yyreturn;
+
+ yyreturn:
+ if (yychar != YYEOF && yychar != YYEMPTY)
+ yydestruct ("Cleanup: discarding lookahead",
+ YYTRANSLATE (yychar),
+ &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
+
+ /* If the stack is well-formed, pop the stack until it is empty,
+ destroying its entries as we go. But free the stack regardless
+ of whether it is well-formed. */
+ if (yystack.yyitems)
+ {
+ yyGLRState** yystates = yystack.yytops.yystates;
+ if (yystates)
+ {
+ size_t yysize = yystack.yytops.yysize;
+ size_t yyk;
+ for (yyk = 0; yyk < yysize; yyk += 1)
+ if (yystates[yyk])
+ {
+ while (yystates[yyk])
+ {
+ yyGLRState *yys = yystates[yyk];
+]b4_locations_if([[ yystack.yyerror_range[1].yystate.yyloc = yys->yyloc;]]
+)[ yydestroyGLRState ("Cleanup: popping", yys]b4_user_args[);
+ yystates[yyk] = yys->yypred;
+ yystack.yynextFree -= 1;
+ yystack.yyspaceLeft += 1;
+ }
+ break;
+ }
+ }
+ yyfreeGLRStack (&yystack);
+ }
+
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+/* DEBUGGING ONLY */
+#ifdef YYDEBUG
+static void yypstack (yyGLRStack* yystackp, size_t yyk)
+ __attribute__ ((__unused__));
+static void yypdumpstack (yyGLRStack* yystackp) __attribute__ ((__unused__));
+
+static void
+yy_yypstack (yyGLRState* yys)
+{
+ if (yys->yypred)
+ {
+ yy_yypstack (yys->yypred);
+ fprintf (stderr, " -> ");
+ }
+ fprintf (stderr, "%d@@%lu", yys->yylrState, (unsigned long int) yys->yyposn);
+}
+
+static void
+yypstates (yyGLRState* yyst)
+{
+ if (yyst == NULL)
+ fprintf (stderr, "<null>");
+ else
+ yy_yypstack (yyst);
+ fprintf (stderr, "\n");
+}
+
+static void
+yypstack (yyGLRStack* yystackp, size_t yyk)
+{
+ yypstates (yystackp->yytops.yystates[yyk]);
+}
+
+#define YYINDEX(YYX) \
+ ((YYX) == NULL ? -1 : (yyGLRStackItem*) (YYX) - yystackp->yyitems)
+
+
+static void
+yypdumpstack (yyGLRStack* yystackp)
+{
+ yyGLRStackItem* yyp;
+ size_t yyi;
+ for (yyp = yystackp->yyitems; yyp < yystackp->yynextFree; yyp += 1)
+ {
+ fprintf (stderr, "%3lu. ", (unsigned long int) (yyp - yystackp->yyitems));
+ if (*(yybool *) yyp)
+ {
+ fprintf (stderr, "Res: %d, LR State: %d, posn: %lu, pred: %ld",
+ yyp->yystate.yyresolved, yyp->yystate.yylrState,
+ (unsigned long int) yyp->yystate.yyposn,
+ (long int) YYINDEX (yyp->yystate.yypred));
+ if (! yyp->yystate.yyresolved)
+ fprintf (stderr, ", firstVal: %ld",
+ (long int) YYINDEX (yyp->yystate.yysemantics.yyfirstVal));
+ }
+ else
+ {
+ fprintf (stderr, "Option. rule: %d, state: %ld, next: %ld",
+ yyp->yyoption.yyrule - 1,
+ (long int) YYINDEX (yyp->yyoption.yystate),
+ (long int) YYINDEX (yyp->yyoption.yynext));
+ }
+ fprintf (stderr, "\n");
+ }
+ fprintf (stderr, "Tops:");
+ for (yyi = 0; yyi < yystackp->yytops.yysize; yyi += 1)
+ fprintf (stderr, "%lu: %ld; ", (unsigned long int) yyi,
+ (long int) YYINDEX (yystackp->yytops.yystates[yyi]));
+ fprintf (stderr, "\n");
+}
+#endif
+]
+
+b4_epilogue
+b4_defines_if(
+[@output @output_header_name@
+b4_copyright([Skeleton interface for Bison GLR parsers in C],
+ [2002, 2003, 2004, 2005, 2006])
+
+b4_shared_declarations
+
+extern YYSTYPE b4_prefix[]lval;
+
+b4_locations_if([b4_pure_if([],
+[extern YYLTYPE b4_prefix[]lloc;])
+])
+])
diff --git a/data/glr.cc b/data/glr.cc
new file mode 100644
index 0000000..d07b5a4
--- /dev/null
+++ b/data/glr.cc
@@ -0,0 +1,389 @@
+m4_divert(-1) -*- C -*-
+
+# C++ GLR skeleton for Bison
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+
+# This skeleton produces a C++ class that encapsulates a C glr parser.
+# This is in order to reduce the maintenance burden. The glr.c
+# skeleton is clean and pure enough so that there are no real
+# problems. The C++ interface is the same as that of lalr1.cc. In
+# fact, glr.c can replace yacc.c without the user noticing any
+# difference, and similarly for glr.cc replacing lalr1.cc.
+#
+# The passing of parse-params
+#
+# The additional arguments are stored as members of the parser
+# object, yyparser. The C routines need to carry yyparser
+# throughout the C parser; that easy: just let yyparser become an
+# additional parse-param. But because the C++ skeleton needs to
+# know the "real" original parse-param, we save them
+# (b4_parse_param_orig). Note that b4_parse_param is overquoted
+# (and c.m4 strips one level of quotes). This is a PITA, and
+# explains why there are so many levels of quotes.
+#
+# The locations
+#
+# We use location.cc just like lalr1.cc, but because glr.c stores
+# the locations in a (C++) union, the position and location classes
+# must not have a constructor. Therefore, contrary to lalr1.cc, we
+# must not define "b4_location_constructors". As a consequence the
+# user must initialize the first positions (in particular the
+# filename member).
+
+# We require a pure interface using locations.
+m4_define([b4_locations_flag], [1])
+m4_define([b4_pure_flag], [1])
+
+# The header is mandatory.
+b4_defines_if([],
+ [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+
+m4_include(b4_pkgdatadir/[c++.m4])
+m4_include(b4_pkgdatadir/[location.cc])
+
+
+# Save the parse parameters.
+m4_define([b4_parse_param_orig], m4_defn([b4_parse_param]))
+
+
+# b4_yy_symbol_print_generate
+# ---------------------------
+# Bypass the default implementation to generate the "yy_symbol_print"
+# and "yy_symbol_value_print" functions.
+m4_define([b4_yy_symbol_print_generate],
+[[
+/*--------------------.
+| Print this symbol. |
+`--------------------*/
+
+]b4_c_ansi_function_def([yy_symbol_print],
+ [static void],
+ [[FILE *], []],
+ [[int yytype], [yytype]],
+ [[const b4_namespace::b4_parser_class_name::semantic_type *yyvaluep],
+ [yyvaluep]],
+ [[const b4_namespace::b4_parser_class_name::location_type *yylocationp],
+ [yylocationp]],
+ b4_parse_param)[
+{
+]b4_parse_param_use[]dnl
+[ yyparser.yy_symbol_print_ (yytype, yyvaluep]b4_locations_if([, yylocationp])[);
+}
+]])
+
+
+# Declare yyerror.
+m4_append([b4_post_prologue],
+[/* Line __line__ of glr.cc. */
+b4_syncline([@oline@], [@ofile@])
+
+b4_c_ansi_function_decl([yyerror],
+ [static void],
+ [[b4_namespace::b4_parser_class_name::location_type *yylocationp], [yylocationp]],
+ b4_parse_param,
+ [[const char* msg], [msg]])])
+
+
+# Define yyerror.
+m4_append([b4_epilogue],
+[/* Line __line__ of glr.cc. */
+b4_syncline([@oline@], [@ofile@])[
+/*------------------.
+| Report an error. |
+`------------------*/
+
+]b4_c_ansi_function_def([yyerror],
+ [static void],
+ [[b4_namespace::b4_parser_class_name::location_type *yylocationp], [yylocationp]],
+ b4_parse_param,
+ [[const char* msg], [msg]])[
+{
+]b4_parse_param_use[]dnl
+[ yyparser.error (*yylocationp, msg);
+}
+
+
+namespace ]b4_namespace[
+{
+]dnl In this section, the parse param are the original parse_params.
+m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
+[ /// Build a parser object.
+ ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)
+ : yycdebug_ (&std::cerr)]b4_parse_param_cons[
+ {
+ }
+
+ ]b4_parser_class_name::~b4_parser_class_name[ ()
+ {
+ }
+
+ int
+ ]b4_parser_class_name[::parse ()
+ {
+ return ::yyparse (*this]b4_user_args[);
+ }
+
+#if YYDEBUG
+ /*--------------------.
+ | Print this symbol. |
+ `--------------------*/
+
+ inline void
+ ]b4_parser_class_name[::yy_symbol_value_print_ (int yytype,
+ const semantic_type* yyvaluep, const location_type* yylocationp)
+ {
+ /* Pacify ``unused variable'' warnings. */
+ YYUSE (yyvaluep);
+ YYUSE (yylocationp);
+ switch (yytype)
+ {
+ ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
+[ default:
+ break;
+ }
+ }
+
+
+ void
+ ]b4_parser_class_name[::yy_symbol_print_ (int yytype,
+ const semantic_type* yyvaluep, const location_type* yylocationp)
+ {
+ *yycdebug_ << (yytype < YYNTOKENS ? "token" : "nterm")
+ << ' ' << yytname[yytype] << " ("
+ << *yylocationp << ": ";
+ yy_symbol_value_print_ (yytype, yyvaluep, yylocationp);
+ *yycdebug_ << ')';
+ }
+
+ std::ostream&
+ ]b4_parser_class_name[::debug_stream () const
+ {
+ return *yycdebug_;
+ }
+
+ void
+ ]b4_parser_class_name[::set_debug_stream (std::ostream& o)
+ {
+ yycdebug_ = &o;
+ }
+
+
+ ]b4_parser_class_name[::debug_level_type
+ ]b4_parser_class_name[::debug_level () const
+ {
+ return ::yydebug;
+ }
+
+ void
+ ]b4_parser_class_name[::set_debug_level (debug_level_type l)
+ {
+ ::yydebug = l;
+ }
+
+#endif /* ! YYDEBUG */
+]m4_popdef([b4_parse_param])dnl
+[} // namespace ]b4_namespace[
+
+]])
+
+
+# Let glr.c believe that the user arguments include the parser itself.
+m4_ifset([b4_parse_param],
+[m4_pushdef([b4_parse_param],
+ m4_dquote([[[b4_namespace::b4_parser_class_name& yyparser], [[yyparser]]],]
+m4_defn([b4_parse_param])))],
+[m4_pushdef([b4_parse_param],
+ [[[[b4_namespace::b4_parser_class_name& yyparser], [[yyparser]]]]])
+])
+m4_include(b4_pkgdatadir/[glr.c])
+m4_popdef([b4_parse_param])
+
+
+@output @output_header_name@
+b4_copyright([Skeleton interface for Bison GLR parsers in C++],
+ [2002, 2003, 2004, 2005, 2006])[
+
+/* C++ GLR parser skeleton written by Akim Demaille. */
+
+#ifndef PARSER_HEADER_H
+# define PARSER_HEADER_H
+
+#include <string>
+#include <iostream>
+
+/* Using locations. */
+#define YYLSP_NEEDED ]b4_locations_flag[
+
+namespace ]b4_namespace[
+{
+ class position;
+ class location;
+}
+
+/* Copy the first part of user declarations. */
+]b4_pre_prologue[
+
+]/* Line __line__ of glr.cc. */
+b4_syncline([@oline@], [@ofile@])[
+
+#include "location.hh"
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG ]b4_debug_flag[
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE ]b4_token_table[
+#endif
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (N) \
+ { \
+ (Current).begin = YYRHSLOC (Rhs, 1).begin; \
+ (Current).end = YYRHSLOC (Rhs, N).end; \
+ } \
+ else \
+ { \
+ (Current).begin = (Current).end = YYRHSLOC (Rhs, 0).end; \
+ } \
+ while (/*CONSTCOND*/ 0)
+#endif
+
+namespace ]b4_namespace[
+{
+ /// A Bison parser.
+ class ]b4_parser_class_name[
+ {
+ public:
+ /// Symbol semantic values.
+#ifndef YYSTYPE
+]m4_ifdef([b4_stype],
+[ union semantic_type
+b4_stype
+/* Line __line__ of lalr1.cc. */
+b4_syncline([@oline@], [@ofile@])
+ ;],
+[ typedef int semantic_type;])[
+#else
+ typedef YYSTYPE semantic_type;
+#endif
+ /// Symbol locations.
+ typedef ]b4_location_type[ location_type;
+ /// Tokens.
+ struct token
+ {
+ ]b4_token_enums(b4_tokens)[
+ };
+ /// Token type.
+ typedef token::yytokentype token_type;
+
+ /// Build a parser object.
+ ]b4_parser_class_name[ (]b4_parse_param_decl[);
+ virtual ~]b4_parser_class_name[ ();
+
+ /// Parse.
+ /// \returns 0 iff parsing succeeded.
+ virtual int parse ();
+
+ /// The current debugging stream.
+ std::ostream& debug_stream () const;
+ /// Set the current debugging stream.
+ void set_debug_stream (std::ostream &);
+
+ /// Type for debugging levels.
+ typedef int debug_level_type;
+ /// The current debugging level.
+ debug_level_type debug_level () const;
+ /// Set the current debugging level.
+ void set_debug_level (debug_level_type l);
+
+ private:
+
+ public:
+ /// Report a syntax error.
+ /// \param loc where the syntax error is found.
+ /// \param msg a description of the syntax error.
+ virtual void error (const location_type& loc, const std::string& msg);
+ private:
+
+#if YYDEBUG
+ public:
+ /// \brief Report a symbol value on the debug stream.
+ /// \param yytype The token type.
+ /// \param yyvaluep Its semantic value.
+ /// \param yylocationp Its location.
+ virtual void yy_symbol_value_print_ (int yytype,
+ const semantic_type* yyvaluep,
+ const location_type* yylocationp);
+ /// \brief Report a symbol on the debug stream.
+ /// \param yytype The token type.
+ /// \param yyvaluep Its semantic value.
+ /// \param yylocationp Its location.
+ virtual void yy_symbol_print_ (int yytype,
+ const semantic_type* yyvaluep,
+ const location_type* yylocationp);
+ private:
+#endif /* ! YYDEBUG */
+
+
+ /// \brief Reclaim the memory associated to a symbol.
+ /// \param yymsg Why this token is reclaimed.
+ /// \param yytype The symbol type.
+ /// \param yyvaluep Its semantic value.
+ /// \param yylocationp Its location.
+ inline void yydestruct_ (const char* yymsg,
+ int yytype,
+ semantic_type* yyvaluep,
+ location_type* yylocationp);
+
+ /* Debugging. */
+ std::ostream* yycdebug_;
+]b4_parse_param_vars[
+ };
+
+]dnl Redirections for glr.c.
+m4_ifset([b4_global_tokens_and_yystype],
+[b4_token_defines(b4_tokens)])
+[
+#ifndef YYSTYPE
+# define YYSTYPE ]b4_namespace[::]b4_parser_class_name[::semantic_type
+#endif
+#ifndef YYLTYPE
+# define YYLTYPE ]b4_namespace[::]b4_parser_class_name[::location_type
+#endif
+
+}
+
+#endif /* ! defined PARSER_HEADER_H */]
diff --git a/data/lalr1.cc b/data/lalr1.cc
new file mode 100644
index 0000000..abcdcd5
--- /dev/null
+++ b/data/lalr1.cc
@@ -0,0 +1,1157 @@
+m4_divert(-1)
+
+# C++ skeleton for Bison
+
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+m4_include(b4_pkgdatadir/[c++.m4])
+
+# The header is mandatory.
+b4_defines_if([],
+ [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+
+# Backward compatibility.
+m4_define([b4_location_constructors])
+m4_include(b4_pkgdatadir/[location.cc])
+
+# We do want M4 expansion after # for CPP macros.
+m4_changecom()
+m4_divert(0)dnl
+b4_defines_if(
+[@output @output_header_name@
+b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
+ [2002, 2003, 2004, 2005, 2006])
+dnl FIXME: This is wrong, we want computed header guards.
+[
+/* C++ LALR(1) parser skeleton written by Akim Demaille. */
+
+#ifndef PARSER_HEADER_H
+# define PARSER_HEADER_H
+
+#include <string>
+#include <iostream>
+#include "stack.hh"
+
+namespace ]b4_namespace[
+{
+ class position;
+ class location;
+}
+
+/* First part of user declarations. */
+]b4_pre_prologue[
+
+]/* Line __line__ of lalr1.cc. */
+b4_syncline([@oline@], [@ofile@])[
+
+]dnl Include location.hh here: it might depend on headers included above.
+[#include "location.hh"
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG ]b4_debug_flag[
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE ]b4_token_table[
+#endif
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+do { \
+ if (N) \
+ { \
+ (Current).begin = (Rhs)[1].begin; \
+ (Current).end = (Rhs)[N].end; \
+ } \
+ else \
+ { \
+ (Current).begin = (Current).end = (Rhs)[0].end; \
+ } \
+} while (false)
+#endif
+
+namespace ]b4_namespace[
+{
+
+ /// A Bison parser.
+ class ]b4_parser_class_name[
+ {
+ public:
+ /// Symbol semantic values.
+#ifndef YYSTYPE
+]m4_ifdef([b4_stype],
+[ union semantic_type
+b4_stype
+/* Line __line__ of lalr1.cc. */
+b4_syncline([@oline@], [@ofile@])
+ ;],
+[ typedef int semantic_type;])[
+#else
+ typedef YYSTYPE semantic_type;
+#endif
+ /// Symbol locations.
+ typedef ]b4_location_type[ location_type;
+ /// Tokens.
+ struct token
+ {
+ ]b4_token_enums(b4_tokens)[
+ };
+ /// Token type.
+ typedef token::yytokentype token_type;
+
+ /// Build a parser object.
+ ]b4_parser_class_name[ (]b4_parse_param_decl[);
+ virtual ~]b4_parser_class_name[ ();
+
+ /// Parse.
+ /// \returns 0 iff parsing succeeded.
+ virtual int parse ();
+
+ /// The current debugging stream.
+ std::ostream& debug_stream () const;
+ /// Set the current debugging stream.
+ void set_debug_stream (std::ostream &);
+
+ /// Type for debugging levels.
+ typedef int debug_level_type;
+ /// The current debugging level.
+ debug_level_type debug_level () const;
+ /// Set the current debugging level.
+ void set_debug_level (debug_level_type l);
+
+ private:
+ /// Report a syntax error.
+ /// \param loc where the syntax error is found.
+ /// \param msg a description of the syntax error.
+ virtual void error (const location_type& loc, const std::string& msg);
+
+ /// Generate an error message.
+ /// \param state the state where the error occurred.
+ /// \param tok the look-ahead token.
+ virtual std::string yysyntax_error_ (int yystate]dnl
+b4_error_verbose_if([, int tok])[);
+
+#if YYDEBUG
+ /// \brief Report a symbol value on the debug stream.
+ /// \param yytype The token type.
+ /// \param yyvaluep Its semantic value.
+ /// \param yylocationp Its location.
+ virtual void yy_symbol_value_print_ (int yytype,
+ const semantic_type* yyvaluep,
+ const location_type* yylocationp);
+ /// \brief Report a symbol on the debug stream.
+ /// \param yytype The token type.
+ /// \param yyvaluep Its semantic value.
+ /// \param yylocationp Its location.
+ virtual void yy_symbol_print_ (int yytype,
+ const semantic_type* yyvaluep,
+ const location_type* yylocationp);
+#endif /* ! YYDEBUG */
+
+
+ /// State numbers.
+ typedef int state_type;
+ /// State stack type.
+ typedef stack<state_type> state_stack_type;
+ /// Semantic value stack type.
+ typedef stack<semantic_type> semantic_stack_type;
+ /// location stack type.
+ typedef stack<location_type> location_stack_type;
+
+ /// The state stack.
+ state_stack_type yystate_stack_;
+ /// The semantic value stack.
+ semantic_stack_type yysemantic_stack_;
+ /// The location stack.
+ location_stack_type yylocation_stack_;
+
+ /// Internal symbol numbers.
+ typedef ]b4_int_type_for([b4_translate])[ token_number_type;
+ /* Tables. */
+ /// For a state, the index in \a yytable_ of its portion.
+ static const ]b4_int_type_for([b4_pact])[ yypact_[];
+ static const ]b4_int_type(b4_pact_ninf, b4_pact_ninf)[ yypact_ninf_;
+
+ /// For a state, default rule to reduce.
+ /// Unless\a yytable_ specifies something else to do.
+ /// Zero means the default is an error.
+ static const ]b4_int_type_for([b4_defact])[ yydefact_[];
+
+ static const ]b4_int_type_for([b4_pgoto])[ yypgoto_[];
+ static const ]b4_int_type_for([b4_defgoto])[ yydefgoto_[];
+
+ /// What to do in a state.
+ /// \a yytable_[yypact_[s]]: what to do in state \a s.
+ /// - if positive, shift that token.
+ /// - if negative, reduce the rule which number is the opposite.
+ /// - if zero, do what YYDEFACT says.
+ static const ]b4_int_type_for([b4_table])[ yytable_[];
+ static const ]b4_int_type(b4_table_ninf, b4_table_ninf)[ yytable_ninf_;
+
+ static const ]b4_int_type_for([b4_check])[ yycheck_[];
+
+ /// For a state, its accessing symbol.
+ static const ]b4_int_type_for([b4_stos])[ yystos_[];
+
+ /// For a rule, its LHS.
+ static const ]b4_int_type_for([b4_r1])[ yyr1_[];
+ /// For a rule, its RHS length.
+ static const ]b4_int_type_for([b4_r2])[ yyr2_[];
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+ /// For a symbol, its name in clear.
+ static const char* const yytname_[];
+#endif
+
+#if YYERROR_VERBOSE
+ /// Convert the symbol name \a n to a form suitable for a diagnostic.
+ virtual std::string yytnamerr_ (const char *n);
+#endif
+
+#if YYDEBUG
+ /// A type to store symbol numbers and -1.
+ typedef ]b4_int_type_for([b4_rhs])[ rhs_number_type;
+ /// A `-1'-separated list of the rules' RHS.
+ static const rhs_number_type yyrhs_[];
+ /// For each rule, the index of the first RHS symbol in \a yyrhs_.
+ static const ]b4_int_type_for([b4_prhs])[ yyprhs_[];
+ /// For each rule, its source line number.
+ static const ]b4_int_type_for([b4_rline])[ yyrline_[];
+ /// For each scanner token number, its symbol number.
+ static const ]b4_int_type_for([b4_toknum])[ yytoken_number_[];
+ /// Report on the debug stream that the rule \a r is going to be reduced.
+ virtual void yy_reduce_print_ (int r);
+ /// Print the state stack on the debug stream.
+ virtual void yystack_print_ ();
+#endif
+
+ /// Convert a scanner token number \a t to a symbol number.
+ token_number_type yytranslate_ (int t);
+
+ /// \brief Reclaim the memory associated to a symbol.
+ /// \param yymsg Why this token is reclaimed.
+ /// \param yytype The symbol type.
+ /// \param yyvaluep Its semantic value.
+ /// \param yylocationp Its location.
+ inline void yydestruct_ (const char* yymsg,
+ int yytype,
+ semantic_type* yyvaluep,
+ location_type* yylocationp);
+
+ /// Pop \a n symbols the three stacks.
+ inline void yypop_ (unsigned int n = 1);
+
+ /* Constants. */
+ static const int yyeof_;
+ /* LAST_ -- Last index in TABLE_. */
+ static const int yylast_;
+ static const int yynnts_;
+ static const int yyempty_;
+ static const int yyfinal_;
+ static const int yyterror_;
+ static const int yyerrcode_;
+ static const int yyntokens_;
+ static const unsigned int yyuser_token_number_max_;
+ static const token_number_type yyundef_token_;
+
+ /* Debugging. */
+ int yydebug_;
+ std::ostream* yycdebug_;
+
+]b4_parse_param_vars[
+ };
+}
+
+]m4_ifset([b4_global_tokens_and_yystype],
+[b4_token_defines(b4_tokens)
+
+#ifndef YYSTYPE
+ /* Redirection for backward compatibility. */
+# define YYSTYPE b4_namespace::b4_parser_class_name::semantic_type
+#endif
+])[
+#endif /* ! defined PARSER_HEADER_H */]
+])dnl
+@output @output_parser_name@
+b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
+ [2002, 2003, 2004, 2005, 2006])
+m4_if(b4_prefix, [yy], [],
+[
+// Take the name prefix into account.
+#define yylex b4_prefix[]lex])
+b4_defines_if([
+#include @output_header_name@])[
+
+/* User implementation prologue. */
+]b4_post_prologue[
+
+]/* Line __line__ of lalr1.cc. */
+b4_syncline([@oline@], [@ofile@])[
+
+#ifndef YY_
+# if YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* FIXME: INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#define YYUSE(e) ((void) (e))
+
+/* A pseudo ostream that takes yydebug_ into account. */
+# define YYCDEBUG \
+ for (bool yydebugcond_ = yydebug_; yydebugcond_; yydebugcond_ = false) \
+ (*yycdebug_)
+
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug_) \
+ { \
+ *yycdebug_ << Title << ' '; \
+ yy_symbol_print_ ((Type), (Value), (Location)); \
+ *yycdebug_ << std::endl; \
+ } \
+} while (false)
+
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug_) \
+ yy_reduce_print_ (Rule); \
+} while (false)
+
+# define YY_STACK_PRINT() \
+do { \
+ if (yydebug_) \
+ yystack_print_ (); \
+} while (false)
+
+#else /* !YYDEBUG */
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_REDUCE_PRINT(Rule)
+# define YY_STACK_PRINT()
+
+#endif /* !YYDEBUG */
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+namespace ]b4_namespace[
+{
+#if YYERROR_VERBOSE
+
+ /* Return YYSTR after stripping away unnecessary quotes and
+ backslashes, so that it's suitable for yyerror. The heuristic is
+ that double-quoting is unnecessary unless the string contains an
+ apostrophe, a comma, or backslash (other than backslash-backslash).
+ YYSTR is taken from yytname. */
+ std::string
+ ]b4_parser_class_name[::yytnamerr_ (const char *yystr)
+ {
+ if (*yystr == '"')
+ {
+ std::string yyr = "";
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ yyr += *yyp;
+ break;
+
+ case '"':
+ return yyr;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ return yystr;
+ }
+
+#endif
+
+ /// Build a parser object.
+ ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)
+ : yydebug_ (false),
+ yycdebug_ (&std::cerr)]b4_parse_param_cons[
+ {
+ }
+
+ ]b4_parser_class_name::~b4_parser_class_name[ ()
+ {
+ }
+
+#if YYDEBUG
+ /*--------------------------------.
+ | Print this symbol on YYOUTPUT. |
+ `--------------------------------*/
+
+ inline void
+ ]b4_parser_class_name[::yy_symbol_value_print_ (int yytype,
+ const semantic_type* yyvaluep, const location_type* yylocationp)
+ {
+ YYUSE (yylocationp);
+ YYUSE (yyvaluep);
+ switch (yytype)
+ {
+ ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
+[ default:
+ break;
+ }
+ }
+
+
+ void
+ ]b4_parser_class_name[::yy_symbol_print_ (int yytype,
+ const semantic_type* yyvaluep, const location_type* yylocationp)
+ {
+ *yycdebug_ << (yytype < yyntokens_ ? "token" : "nterm")
+ << ' ' << yytname_[yytype] << " ("
+ << *yylocationp << ": ";
+ yy_symbol_value_print_ (yytype, yyvaluep, yylocationp);
+ *yycdebug_ << ')';
+ }
+#endif /* ! YYDEBUG */
+
+ void
+ ]b4_parser_class_name[::yydestruct_ (const char* yymsg,
+ int yytype, semantic_type* yyvaluep, location_type* yylocationp)
+ {
+ YYUSE (yylocationp);
+ YYUSE (yymsg);
+ YYUSE (yyvaluep);
+
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+ ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_destructors]))[
+ default:
+ break;
+ }
+ }
+
+ void
+ ]b4_parser_class_name[::yypop_ (unsigned int n)
+ {
+ yystate_stack_.pop (n);
+ yysemantic_stack_.pop (n);
+ yylocation_stack_.pop (n);
+ }
+
+ std::ostream&
+ ]b4_parser_class_name[::debug_stream () const
+ {
+ return *yycdebug_;
+ }
+
+ void
+ ]b4_parser_class_name[::set_debug_stream (std::ostream& o)
+ {
+ yycdebug_ = &o;
+ }
+
+
+ ]b4_parser_class_name[::debug_level_type
+ ]b4_parser_class_name[::debug_level () const
+ {
+ return yydebug_;
+ }
+
+ void
+ ]b4_parser_class_name[::set_debug_level (debug_level_type l)
+ {
+ yydebug_ = l;
+ }
+
+
+ int
+ ]b4_parser_class_name[::parse ()
+ {
+ /// Look-ahead and look-ahead in internal form.
+ int yychar = yyempty_;
+ int yytoken = 0;
+
+ /* State. */
+ int yyn;
+ int yylen = 0;
+ int yystate = 0;
+
+ /* Error handling. */
+ int yynerrs_ = 0;
+ int yyerrstatus_ = 0;
+
+ /// Semantic value of the look-ahead.
+ semantic_type yylval;
+ /// Location of the look-ahead.
+ location_type yylloc;
+ /// The locations where the error started and ended.
+ location yyerror_range[2];
+
+ /// $$.
+ semantic_type yyval;
+ /// @@$.
+ location_type yyloc;
+
+ int yyresult;
+
+ YYCDEBUG << "Starting parse" << std::endl;
+
+]m4_ifdef([b4_initial_action], [
+m4_pushdef([b4_at_dollar], [yylloc])dnl
+m4_pushdef([b4_dollar_dollar], [yylval])dnl
+ /* User initialization code. */
+ b4_initial_action
+m4_popdef([b4_dollar_dollar])dnl
+m4_popdef([b4_at_dollar])dnl
+ /* Line __line__ of yacc.c. */
+b4_syncline([@oline@], [@ofile@])])dnl
+
+ [ /* Initialize the stacks. The initial state will be pushed in
+ yynewstate, since the latter expects the semantical and the
+ location values to have been already stored, initialize these
+ stacks with a primary value. */
+ yystate_stack_ = state_stack_type (0);
+ yysemantic_stack_ = semantic_stack_type (0);
+ yylocation_stack_ = location_stack_type (0);
+ yysemantic_stack_.push (yylval);
+ yylocation_stack_.push (yylloc);
+
+ /* New state. */
+ yynewstate:
+ yystate_stack_.push (yystate);
+ YYCDEBUG << "Entering state " << yystate << std::endl;
+ goto yybackup;
+
+ /* Backup. */
+ yybackup:
+
+ /* Try to take a decision without look-ahead. */
+ yyn = yypact_[yystate];
+ if (yyn == yypact_ninf_)
+ goto yydefault;
+
+ /* Read a look-ahead token. */
+ if (yychar == yyempty_)
+ {
+ YYCDEBUG << "Reading a token: ";
+ yychar = ]b4_c_function_call([yylex], [int],
+ [[YYSTYPE*], [&yylval]][]dnl
+b4_locations_if([, [[location*], [&yylloc]]])dnl
+m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
+ }
+
+
+ /* Convert token to internal form. */
+ if (yychar <= yyeof_)
+ {
+ yychar = yytoken = yyeof_;
+ YYCDEBUG << "Now at end of input." << std::endl;
+ }
+ else
+ {
+ yytoken = yytranslate_ (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || yylast_ < yyn || yycheck_[yyn] != yytoken)
+ goto yydefault;
+
+ /* Reduce or error. */
+ yyn = yytable_[yyn];
+ if (yyn <= 0)
+ {
+ if (yyn == 0 || yyn == yytable_ninf_)
+ goto yyerrlab;
+ yyn = -yyn;
+ goto yyreduce;
+ }
+
+ /* Accept? */
+ if (yyn == yyfinal_)
+ goto yyacceptlab;
+
+ /* Shift the look-ahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the token being shifted unless it is eof. */
+ if (yychar != yyeof_)
+ yychar = yyempty_;
+
+ yysemantic_stack_.push (yylval);
+ yylocation_stack_.push (yylloc);
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus_)
+ --yyerrstatus_;
+
+ yystate = yyn;
+ goto yynewstate;
+
+ /*-----------------------------------------------------------.
+ | yydefault -- do the default action for the current state. |
+ `-----------------------------------------------------------*/
+ yydefault:
+ yyn = yydefact_[yystate];
+ if (yyn == 0)
+ goto yyerrlab;
+ goto yyreduce;
+
+ /*-----------------------------.
+ | yyreduce -- Do a reduction. |
+ `-----------------------------*/
+ yyreduce:
+ yylen = yyr2_[yyn];
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'. Otherwise, use the top of the stack.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. */
+ if (yylen)
+ yyval = yysemantic_stack_[yylen - 1];
+ else
+ yyval = yysemantic_stack_[0];
+
+ {
+ slice<location_type, location_stack_type> slice (yylocation_stack_, yylen);
+ YYLLOC_DEFAULT (yyloc, slice, yylen);
+ }
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ ]b4_actions
+ /* Line __line__ of lalr1.cc. */
+b4_syncline([@oline@], [@ofile@])[
+ default: break;
+ }
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1_[yyn], &yyval, &yyloc);
+
+ yypop_ (yylen);
+ yylen = 0;
+ YY_STACK_PRINT ();
+
+ yysemantic_stack_.push (yyval);
+ yylocation_stack_.push (yyloc);
+
+ /* Shift the result of the reduction. */
+ yyn = yyr1_[yyn];
+ yystate = yypgoto_[yyn - yyntokens_] + yystate_stack_[0];
+ if (0 <= yystate && yystate <= yylast_
+ && yycheck_[yystate] == yystate_stack_[0])
+ yystate = yytable_[yystate];
+ else
+ yystate = yydefgoto_[yyn - yyntokens_];
+ goto yynewstate;
+
+ /*------------------------------------.
+ | yyerrlab -- here on detecting error |
+ `------------------------------------*/
+ yyerrlab:
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus_)
+ {
+ ++yynerrs_;
+ error (yylloc, yysyntax_error_ (yystate]dnl
+b4_error_verbose_if([, yytoken])[));
+ }
+
+ yyerror_range[0] = yylloc;
+ if (yyerrstatus_ == 3)
+ {
+ /* If just tried and failed to reuse look-ahead token after an
+ error, discard it. */
+
+ if (yychar <= yyeof_)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == yyeof_)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct_ ("Error: discarding", yytoken, &yylval, &yylloc);
+ yychar = yyempty_;
+ }
+ }
+
+ /* Else will try to reuse look-ahead token after shifting the error
+ token. */
+ goto yyerrlab1;
+
+
+ /*---------------------------------------------------.
+ | yyerrorlab -- error raised explicitly by YYERROR. |
+ `---------------------------------------------------*/
+ yyerrorlab:
+
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (false)
+ goto yyerrorlab;
+
+ yyerror_range[0] = yylocation_stack_[yylen - 1];
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ yypop_ (yylen);
+ yylen = 0;
+ yystate = yystate_stack_[0];
+ goto yyerrlab1;
+
+ /*-------------------------------------------------------------.
+ | yyerrlab1 -- common code for both syntax error and YYERROR. |
+ `-------------------------------------------------------------*/
+ yyerrlab1:
+ yyerrstatus_ = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact_[yystate];
+ if (yyn != yypact_ninf_)
+ {
+ yyn += yyterror_;
+ if (0 <= yyn && yyn <= yylast_ && yycheck_[yyn] == yyterror_)
+ {
+ yyn = yytable_[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yystate_stack_.height () == 1)
+ YYABORT;
+
+ yyerror_range[0] = yylocation_stack_[0];
+ yydestruct_ ("Error: popping",
+ yystos_[yystate],
+ &yysemantic_stack_[0], &yylocation_stack_[0]);
+ yypop_ ();
+ yystate = yystate_stack_[0];
+ YY_STACK_PRINT ();
+ }
+
+ if (yyn == yyfinal_)
+ goto yyacceptlab;
+
+ yyerror_range[1] = yylloc;
+ // Using YYLLOC is tempting, but would change the location of
+ // the look-ahead. YYLOC is available though.
+ YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+ yysemantic_stack_.push (yylval);
+ yylocation_stack_.push (yyloc);
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos_[yyn],
+ &yysemantic_stack_[0], &yylocation_stack_[0]);
+
+ yystate = yyn;
+ goto yynewstate;
+
+ /* Accept. */
+ yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+ /* Abort. */
+ yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+ yyreturn:
+ if (yychar != yyeof_ && yychar != yyempty_)
+ yydestruct_ ("Cleanup: discarding lookahead", yytoken, &yylval, &yylloc);
+
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ yypop_ (yylen);
+ while (yystate_stack_.height () != 1)
+ {
+ yydestruct_ ("Cleanup: popping",
+ yystos_[yystate_stack_[0]],
+ &yysemantic_stack_[0],
+ &yylocation_stack_[0]);
+ yypop_ ();
+ }
+
+ return yyresult;
+ }
+
+ // Generate an error message.
+ std::string
+ ]b4_parser_class_name[::yysyntax_error_ (int yystate]dnl
+b4_error_verbose_if([, int tok])[)
+ {
+ std::string res;
+ YYUSE (yystate);
+#if YYERROR_VERBOSE
+ int yyn = yypact_[yystate];
+ if (yypact_ninf_ < yyn && yyn <= yylast_)
+ {
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = yylast_ - yyn + 1;
+ int yyxend = yychecklim < yyntokens_ ? yychecklim : yyntokens_;
+ int count = 0;
+ for (int x = yyxbegin; x < yyxend; ++x)
+ if (yycheck_[x + yyn] == x && x != yyterror_)
+ ++count;
+
+ // FIXME: This method of building the message is not compatible
+ // with internationalization. It should work like yacc.c does it.
+ // That is, first build a string that looks like this:
+ // "syntax error, unexpected %s or %s or %s"
+ // Then, invoke YY_ on this string.
+ // Finally, use the string as a format to output
+ // yytname_[tok], etc.
+ // Until this gets fixed, this message appears in English only.
+ res = "syntax error, unexpected ";
+ res += yytnamerr_ (yytname_[tok]);
+ if (count < 5)
+ {
+ count = 0;
+ for (int x = yyxbegin; x < yyxend; ++x)
+ if (yycheck_[x + yyn] == x && x != yyterror_)
+ {
+ res += (!count++) ? ", expecting " : " or ";
+ res += yytnamerr_ (yytname_[x]);
+ }
+ }
+ }
+ else
+#endif
+ res = YY_("syntax error");
+ return res;
+ }
+
+
+ /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+ const ]b4_int_type(b4_pact_ninf, b4_pact_ninf) b4_parser_class_name::yypact_ninf_ = b4_pact_ninf[;
+ const ]b4_int_type_for([b4_pact])[
+ ]b4_parser_class_name[::yypact_[] =
+ {
+ ]b4_pact[
+ };
+
+ /* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
+ doesn't specify something else to do. Zero means the default is an
+ error. */
+ const ]b4_int_type_for([b4_defact])[
+ ]b4_parser_class_name[::yydefact_[] =
+ {
+ ]b4_defact[
+ };
+
+ /* YYPGOTO[NTERM-NUM]. */
+ const ]b4_int_type_for([b4_pgoto])[
+ ]b4_parser_class_name[::yypgoto_[] =
+ {
+ ]b4_pgoto[
+ };
+
+ /* YYDEFGOTO[NTERM-NUM]. */
+ const ]b4_int_type_for([b4_defgoto])[
+ ]b4_parser_class_name[::yydefgoto_[] =
+ {
+ ]b4_defgoto[
+ };
+
+ /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says. */
+ const ]b4_int_type(b4_table_ninf, b4_table_ninf) b4_parser_class_name::yytable_ninf_ = b4_table_ninf[;
+ const ]b4_int_type_for([b4_table])[
+ ]b4_parser_class_name[::yytable_[] =
+ {
+ ]b4_table[
+ };
+
+ /* YYCHECK. */
+ const ]b4_int_type_for([b4_check])[
+ ]b4_parser_class_name[::yycheck_[] =
+ {
+ ]b4_check[
+ };
+
+ /* STOS_[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+ const ]b4_int_type_for([b4_stos])[
+ ]b4_parser_class_name[::yystos_[] =
+ {
+ ]b4_stos[
+ };
+
+#if YYDEBUG
+ /* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding
+ to YYLEX-NUM. */
+ const ]b4_int_type_for([b4_toknum])[
+ ]b4_parser_class_name[::yytoken_number_[] =
+ {
+ ]b4_toknum[
+ };
+#endif
+
+ /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+ const ]b4_int_type_for([b4_r1])[
+ ]b4_parser_class_name[::yyr1_[] =
+ {
+ ]b4_r1[
+ };
+
+ /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+ const ]b4_int_type_for([b4_r2])[
+ ]b4_parser_class_name[::yyr2_[] =
+ {
+ ]b4_r2[
+ };
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+ /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at \a yyntokens_, nonterminals. */
+ const char*
+ const ]b4_parser_class_name[::yytname_[] =
+ {
+ ]b4_tname[
+ };
+#endif
+
+#if YYDEBUG
+ /* YYRHS -- A `-1'-separated list of the rules' RHS. */
+ const ]b4_parser_class_name[::rhs_number_type
+ ]b4_parser_class_name[::yyrhs_[] =
+ {
+ ]b4_rhs[
+ };
+
+ /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+ const ]b4_int_type_for([b4_prhs])[
+ ]b4_parser_class_name[::yyprhs_[] =
+ {
+ ]b4_prhs[
+ };
+
+ /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */
+ const ]b4_int_type_for([b4_rline])[
+ ]b4_parser_class_name[::yyrline_[] =
+ {
+ ]b4_rline[
+ };
+
+ // Print the state stack on the debug stream.
+ void
+ ]b4_parser_class_name[::yystack_print_ ()
+ {
+ *yycdebug_ << "Stack now";
+ for (state_stack_type::const_iterator i = yystate_stack_.begin ();
+ i != yystate_stack_.end (); ++i)
+ *yycdebug_ << ' ' << *i;
+ *yycdebug_ << std::endl;
+ }
+
+ // Report on the debug stream that the rule \a yyrule is going to be reduced.
+ void
+ ]b4_parser_class_name[::yy_reduce_print_ (int yyrule)
+ {
+ unsigned int yylno = yyrline_[yyrule];
+ int yynrhs = yyr2_[yyrule];
+ /* Print the symbols being reduced, and their result. */
+ *yycdebug_ << "Reducing stack by rule " << yyrule - 1
+ << " (line " << yylno << "), ";
+ /* The symbols being reduced. */
+ for (int yyi = 0; yyi < yynrhs; yyi++)
+ YY_SYMBOL_PRINT (" $" << yyi + 1 << " =",
+ yyrhs_[yyprhs_[yyrule] + yyi],
+ &]b4_rhs_value(yynrhs, yyi + 1)[,
+ &]b4_rhs_location(yynrhs, yyi + 1)[);
+ }
+#endif // YYDEBUG
+
+ /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+ ]b4_parser_class_name[::token_number_type
+ ]b4_parser_class_name[::yytranslate_ (int t)
+ {
+ static
+ const token_number_type
+ translate_table[] =
+ {
+ ]b4_translate[
+ };
+ if ((unsigned int) t <= yyuser_token_number_max_)
+ return translate_table[t];
+ else
+ return yyundef_token_;
+ }
+
+ const int ]b4_parser_class_name[::yyeof_ = 0;
+ const int ]b4_parser_class_name[::yylast_ = ]b4_last[;
+ const int ]b4_parser_class_name[::yynnts_ = ]b4_nterms_number[;
+ const int ]b4_parser_class_name[::yyempty_ = -2;
+ const int ]b4_parser_class_name[::yyfinal_ = ]b4_final_state_number[;
+ const int ]b4_parser_class_name[::yyterror_ = 1;
+ const int ]b4_parser_class_name[::yyerrcode_ = 256;
+ const int ]b4_parser_class_name[::yyntokens_ = ]b4_tokens_number[;
+
+ const unsigned int ]b4_parser_class_name[::yyuser_token_number_max_ = ]b4_user_token_number_max[;
+ const ]b4_parser_class_name[::token_number_type ]b4_parser_class_name[::yyundef_token_ = ]b4_undef_token_number[;
+
+} // namespace ]b4_namespace[
+
+]b4_epilogue
+dnl
+@output b4_dir_prefix[]stack.hh
+b4_copyright([Stack handling for Bison parsers in C++],
+ [2002, 2003, 2004, 2005, 2006])[
+
+#ifndef BISON_STACK_HH
+# define BISON_STACK_HH
+
+#include <deque>
+
+namespace ]b4_namespace[
+{
+ template <class T, class S = std::deque<T> >
+ class stack
+ {
+ public:
+
+ // Hide our reversed order.
+ typedef typename S::reverse_iterator iterator;
+ typedef typename S::const_reverse_iterator const_iterator;
+
+ stack () : seq_ ()
+ {
+ }
+
+ stack (unsigned int n) : seq_ (n)
+ {
+ }
+
+ inline
+ T&
+ operator [] (unsigned int i)
+ {
+ return seq_[i];
+ }
+
+ inline
+ const T&
+ operator [] (unsigned int i) const
+ {
+ return seq_[i];
+ }
+
+ inline
+ void
+ push (const T& t)
+ {
+ seq_.push_front (t);
+ }
+
+ inline
+ void
+ pop (unsigned int n = 1)
+ {
+ for (; n; --n)
+ seq_.pop_front ();
+ }
+
+ inline
+ unsigned int
+ height () const
+ {
+ return seq_.size ();
+ }
+
+ inline const_iterator begin () const { return seq_.rbegin (); }
+ inline const_iterator end () const { return seq_.rend (); }
+
+ private:
+
+ S seq_;
+ };
+
+ /// Present a slice of the top of a stack.
+ template <class T, class S = stack<T> >
+ class slice
+ {
+ public:
+
+ slice (const S& stack,
+ unsigned int range) : stack_ (stack),
+ range_ (range)
+ {
+ }
+
+ inline
+ const T&
+ operator [] (unsigned int i) const
+ {
+ return stack_[range_ - i];
+ }
+
+ private:
+
+ const S& stack_;
+ unsigned int range_;
+ };
+}
+
+#endif // not BISON_STACK_HH]
+m4_divert(-1)
diff --git a/data/location.cc b/data/location.cc
new file mode 100644
index 0000000..869320e
--- /dev/null
+++ b/data/location.cc
@@ -0,0 +1,253 @@
+m4_divert(-1)
+
+# C++ skeleton for Bison
+
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# We do want M4 expansion after # for CPP macros.
+m4_changecom()
+m4_divert(0)dnl
+@output b4_dir_prefix[]position.hh
+b4_copyright([Positions for Bison parsers in C++],
+ [2002, 2003, 2004, 2005, 2006])[
+
+/**
+ ** \file position.hh
+ ** Define the ]b4_namespace[::position class.
+ */
+
+#ifndef BISON_POSITION_HH
+# define BISON_POSITION_HH
+
+# include <iostream>
+# include <string>
+
+namespace ]b4_namespace[
+{
+ /// Abstract a position.
+ class position
+ {
+ public:
+]m4_ifdef([b4_location_constructors], [
+ /// Construct a position.
+ position ()
+ : filename (0), line (1), column (0)
+ {
+ }
+
+])[
+ /// Initialization.
+ inline void initialize (]b4_filename_type[* fn)
+ {
+ filename = fn;
+ line = 1;
+ column = 0;
+ }
+
+ /** \name Line and Column related manipulators
+ ** \{ */
+ public:
+ /// (line related) Advance to the COUNT next lines.
+ inline void lines (int count = 1)
+ {
+ column = 0;
+ line += count;
+ }
+
+ /// (column related) Advance to the COUNT next columns.
+ inline void columns (int count = 1)
+ {
+ int leftmost = 0;
+ int current = column;
+ if (leftmost <= current + count)
+ column += count;
+ else
+ column = 0;
+ }
+ /** \} */
+
+ public:
+ /// File name to which this position refers.
+ ]b4_filename_type[* filename;
+ /// Current line number.
+ unsigned int line;
+ /// Current column number.
+ unsigned int column;
+ };
+
+ /// Add and assign a position.
+ inline const position&
+ operator+= (position& res, const int width)
+ {
+ res.columns (width);
+ return res;
+ }
+
+ /// Add two position objects.
+ inline const position
+ operator+ (const position& begin, const int width)
+ {
+ position res = begin;
+ return res += width;
+ }
+
+ /// Add and assign a position.
+ inline const position&
+ operator-= (position& res, const int width)
+ {
+ return res += -width;
+ }
+
+ /// Add two position objects.
+ inline const position
+ operator- (const position& begin, const int width)
+ {
+ return begin + -width;
+ }
+
+ /** \brief Intercept output stream redirection.
+ ** \param ostr the destination output stream
+ ** \param pos a reference to the position to redirect
+ */
+ inline std::ostream&
+ operator<< (std::ostream& ostr, const position& pos)
+ {
+ if (pos.filename)
+ ostr << *pos.filename << ':';
+ return ostr << pos.line << '.' << pos.column;
+ }
+
+}
+#endif // not BISON_POSITION_HH]
+@output b4_dir_prefix[]location.hh
+b4_copyright([Locations for Bison parsers in C++],
+ [2002, 2003, 2004, 2005, 2006])[
+
+/**
+ ** \file location.hh
+ ** Define the ]b4_namespace[::location class.
+ */
+
+#ifndef BISON_LOCATION_HH
+# define BISON_LOCATION_HH
+
+# include <iostream>
+# include <string>
+# include "position.hh"
+
+namespace ]b4_namespace[
+{
+
+ /// Abstract a location.
+ class location
+ {
+ public:
+]m4_ifdef([b4_location_constructors], [
+ /// Construct a location.
+ location ()
+ : begin (), end ()
+ {
+ }
+
+])[
+ /// Initialization.
+ inline void initialize (]b4_filename_type[* fn)
+ {
+ begin.initialize (fn);
+ end = begin;
+ }
+
+ /** \name Line and Column related manipulators
+ ** \{ */
+ public:
+ /// Reset initial location to final location.
+ inline void step ()
+ {
+ begin = end;
+ }
+
+ /// Extend the current location to the COUNT next columns.
+ inline void columns (unsigned int count = 1)
+ {
+ end += count;
+ }
+
+ /// Extend the current location to the COUNT next lines.
+ inline void lines (unsigned int count = 1)
+ {
+ end.lines (count);
+ }
+ /** \} */
+
+
+ public:
+ /// Beginning of the located region.
+ position begin;
+ /// End of the located region.
+ position end;
+ };
+
+ /// Join two location objects to create a location.
+ inline const location operator+ (const location& begin, const location& end)
+ {
+ location res = begin;
+ res.end = end.end;
+ return res;
+ }
+
+ /// Add two location objects.
+ inline const location operator+ (const location& begin, unsigned int width)
+ {
+ location res = begin;
+ res.columns (width);
+ return res;
+ }
+
+ /// Add and assign a location.
+ inline location& operator+= (location& res, unsigned int width)
+ {
+ res.columns (width);
+ return res;
+ }
+
+ /** \brief Intercept output stream redirection.
+ ** \param ostr the destination output stream
+ ** \param loc a reference to the location to redirect
+ **
+ ** Avoid duplicate information.
+ */
+ inline std::ostream& operator<< (std::ostream& ostr, const location& loc)
+ {
+ position last = loc.end - 1;
+ ostr << loc.begin;
+ if (last.filename
+ && (!loc.begin.filename
+ || *loc.begin.filename != *last.filename))
+ ostr << '-' << last;
+ else if (loc.begin.line != last.line)
+ ostr << '-' << last.line << '.' << last.column;
+ else if (loc.begin.column != last.column)
+ ostr << '-' << last.column;
+ return ostr;
+ }
+
+}
+
+#endif // not BISON_LOCATION_HH]
+m4_divert(-1)
+m4_changecom([#])
diff --git a/data/m4sugar/m4sugar.m4 b/data/m4sugar/m4sugar.m4
new file mode 100644
index 0000000..225b7c7
--- /dev/null
+++ b/data/m4sugar/m4sugar.m4
@@ -0,0 +1,1776 @@
+divert(-1)# -*- Autoconf -*-
+# This file is part of Autoconf.
+# Base M4 layer.
+# Requires GNU M4.
+#
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software
+# Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+#
+# As a special exception, the Free Software Foundation gives unlimited
+# permission to copy, distribute and modify the configure scripts that
+# are the output of Autoconf. You need not follow the terms of the GNU
+# General Public License when using or distributing such scripts, even
+# though portions of the text of Autoconf appear in them. The GNU
+# General Public License (GPL) does govern all other use of the material
+# that constitutes the Autoconf program.
+#
+# Certain portions of the Autoconf source text are designed to be copied
+# (in certain cases, depending on the input) into the output of
+# Autoconf. We call these the "data" portions. The rest of the Autoconf
+# source text consists of comments plus executable code that decides which
+# of the data portions to output in any given case. We call these
+# comments and executable code the "non-data" portions. Autoconf never
+# copies any of the non-data portions into its output.
+#
+# This special exception to the GPL applies to versions of Autoconf
+# released by the Free Software Foundation. When you make and
+# distribute a modified version of Autoconf, you may extend this special
+# exception to the GPL to apply to your modified version as well, *unless*
+# your modified version has the potential to copy into its output some
+# of the text that was the non-data portion of the version that you started
+# with. (In other words, unless your change moves or copies text from
+# the non-data portions to the data portions.) If your modification has
+# such potential, you must delete any notice of this special exception
+# to the GPL from your modified version.
+#
+# Written by Akim Demaille.
+#
+
+# Set the quotes, whatever the current quoting system.
+changequote()
+changequote([, ])
+
+# Some old m4's don't support m4exit. But they provide
+# equivalent functionality by core dumping because of the
+# long macros we define.
+ifdef([__gnu__], ,
+[errprint(M4sugar requires GNU M4. Install it before installing M4sugar or
+set the M4 environment variable to its absolute file name.)
+m4exit(2)])
+
+
+## ------------------------------- ##
+## 1. Simulate --prefix-builtins. ##
+## ------------------------------- ##
+
+# m4_define
+# m4_defn
+# m4_undefine
+define([m4_define], defn([define]))
+define([m4_defn], defn([defn]))
+define([m4_undefine], defn([undefine]))
+
+m4_undefine([define])
+m4_undefine([defn])
+m4_undefine([undefine])
+
+
+# m4_copy(SRC, DST)
+# -----------------
+# Define DST as the definition of SRC.
+# What's the difference between:
+# 1. m4_copy([from], [to])
+# 2. m4_define([to], [from($@)])
+# Well, obviously 1 is more expensive in space. Maybe 2 is more expensive
+# in time, but because of the space cost of 1, it's not that obvious.
+# Nevertheless, one huge difference is the handling of `$0'. If `from'
+# uses `$0', then with 1, `to''s `$0' is `to', while it is `from' in 2.
+# The user will certainly prefer to see `to'.
+m4_define([m4_copy],
+[m4_define([$2], m4_defn([$1]))])
+
+
+# m4_rename(SRC, DST)
+# -------------------
+# Rename the macro SRC as DST.
+m4_define([m4_rename],
+[m4_copy([$1], [$2])m4_undefine([$1])])
+
+
+# m4_rename_m4(MACRO-NAME)
+# ------------------------
+# Rename MACRO-NAME as m4_MACRO-NAME.
+m4_define([m4_rename_m4],
+[m4_rename([$1], [m4_$1])])
+
+
+# m4_copy_unm4(m4_MACRO-NAME)
+# ---------------------------
+# Copy m4_MACRO-NAME as MACRO-NAME.
+m4_define([m4_copy_unm4],
+[m4_copy([$1], m4_bpatsubst([$1], [^m4_\(.*\)], [[\1]]))])
+
+
+# Some m4 internals have names colliding with tokens we might use.
+# Rename them a` la `m4 --prefix-builtins'.
+m4_rename_m4([builtin])
+m4_rename_m4([changecom])
+m4_rename_m4([changequote])
+m4_rename_m4([debugfile])
+m4_rename_m4([debugmode])
+m4_rename_m4([decr])
+m4_undefine([divert])
+m4_rename_m4([divnum])
+m4_rename_m4([dumpdef])
+m4_rename_m4([errprint])
+m4_rename_m4([esyscmd])
+m4_rename_m4([eval])
+m4_rename_m4([format])
+m4_rename_m4([ifdef])
+m4_rename([ifelse], [m4_if])
+m4_undefine([include])
+m4_rename_m4([incr])
+m4_rename_m4([index])
+m4_rename_m4([indir])
+m4_rename_m4([len])
+m4_rename([m4exit], [m4_exit])
+m4_rename([m4wrap], [m4_wrap])
+m4_rename_m4([maketemp])
+m4_rename([patsubst], [m4_bpatsubst])
+m4_undefine([popdef])
+m4_rename_m4([pushdef])
+m4_rename([regexp], [m4_bregexp])
+m4_rename_m4([shift])
+m4_undefine([sinclude])
+m4_rename_m4([substr])
+m4_rename_m4([symbols])
+m4_rename_m4([syscmd])
+m4_rename_m4([sysval])
+m4_rename_m4([traceoff])
+m4_rename_m4([traceon])
+m4_rename_m4([translit])
+m4_undefine([undivert])
+
+
+## ------------------- ##
+## 2. Error messages. ##
+## ------------------- ##
+
+
+# m4_location
+# -----------
+m4_define([m4_location],
+[__file__:__line__])
+
+
+# m4_errprintn(MSG)
+# -----------------
+# Same as `errprint', but with the missing end of line.
+m4_define([m4_errprintn],
+[m4_errprint([$1
+])])
+
+
+# m4_warning(MSG)
+# ---------------
+# Warn the user.
+m4_define([m4_warning],
+[m4_errprintn(m4_location[: warning: $1])])
+
+
+# m4_fatal(MSG, [EXIT-STATUS])
+# ----------------------------
+# Fatal the user. :)
+m4_define([m4_fatal],
+[m4_errprintn(m4_location[: error: $1])dnl
+m4_expansion_stack_dump()dnl
+m4_exit(m4_if([$2],, 1, [$2]))])
+
+
+# m4_assert(EXPRESSION, [EXIT-STATUS = 1])
+# ----------------------------------------
+# This macro ensures that EXPRESSION evaluates to true, and exits if
+# EXPRESSION evaluates to false.
+m4_define([m4_assert],
+[m4_if(m4_eval([$1]), 0,
+ [m4_fatal([assert failed: $1], [$2])])])
+
+
+
+## ------------- ##
+## 3. Warnings. ##
+## ------------- ##
+
+
+# _m4_warn(CATEGORY, MESSAGE, STACK-TRACE)
+# ----------------------------------------
+# Report a MESSAGE to the user if the CATEGORY of warnings is enabled.
+# This is for traces only.
+# The STACK-TRACE is a \n-separated list of "LOCATION: MESSAGE".
+m4_define([_m4_warn], [])
+
+
+# m4_warn(CATEGORY, MESSAGE)
+# --------------------------
+# Report a MESSAGE to the user if the CATEGORY of warnings is enabled.
+m4_define([m4_warn],
+[_m4_warn([$1], [$2],
+m4_ifdef([m4_expansion_stack],
+ [m4_defn([m4_expansion_stack])
+m4_location[: the top level]]))dnl
+])
+
+
+
+## ------------------- ##
+## 4. File inclusion. ##
+## ------------------- ##
+
+
+# We also want to neutralize include (and sinclude for symmetry),
+# but we want to extend them slightly: warn when a file is included
+# several times. This is in general a dangerous operation because
+# quite nobody quotes the first argument of m4_define.
+#
+# For instance in the following case:
+# m4_define(foo, [bar])
+# then a second reading will turn into
+# m4_define(bar, [bar])
+# which is certainly not what was meant.
+
+# m4_include_unique(FILE)
+# -----------------------
+# Declare that the FILE was loading; and warn if it has already
+# been included.
+m4_define([m4_include_unique],
+[m4_ifdef([m4_include($1)],
+ [m4_warn([syntax], [file `$1' included several times])])dnl
+m4_define([m4_include($1)])])
+
+
+# m4_include(FILE)
+# ----------------
+# As the builtin include, but warns against multiple inclusions.
+m4_define([m4_include],
+[m4_include_unique([$1])dnl
+m4_builtin([include], [$1])])
+
+
+# m4_sinclude(FILE)
+# -----------------
+# As the builtin sinclude, but warns against multiple inclusions.
+m4_define([m4_sinclude],
+[m4_include_unique([$1])dnl
+m4_builtin([sinclude], [$1])])
+
+
+
+## ------------------------------------ ##
+## 5. Additional branching constructs. ##
+## ------------------------------------ ##
+
+# Both `m4_ifval' and `m4_ifset' tests against the empty string. The
+# difference is that `m4_ifset' is specialized on macros.
+#
+# In case of arguments of macros, eg $[1], it makes little difference.
+# In the case of a macro `FOO', you don't want to check `m4_ifval(FOO,
+# TRUE)', because if `FOO' expands with commas, there is a shifting of
+# the arguments. So you want to run `m4_ifval([FOO])', but then you just
+# compare the *string* `FOO' against `', which, of course fails.
+#
+# So you want a variation of `m4_ifset' that expects a macro name as $[1].
+# If this macro is both defined and defined to a non empty value, then
+# it runs TRUE etc.
+
+
+# m4_ifval(COND, [IF-TRUE], [IF-FALSE])
+# -------------------------------------
+# If COND is not the empty string, expand IF-TRUE, otherwise IF-FALSE.
+# Comparable to m4_ifdef.
+m4_define([m4_ifval],
+[m4_if([$1], [], [$3], [$2])])
+
+
+# m4_n(TEXT)
+# ----------
+# If TEXT is not empty, return TEXT and a new line, otherwise nothing.
+m4_define([m4_n],
+[m4_if([$1],
+ [], [],
+ [$1
+])])
+
+
+# m4_ifvaln(COND, [IF-TRUE], [IF-FALSE])
+# --------------------------------------
+# Same as `m4_ifval', but add an extra newline to IF-TRUE or IF-FALSE
+# unless that argument is empty.
+m4_define([m4_ifvaln],
+[m4_if([$1],
+ [], [m4_n([$3])],
+ [m4_n([$2])])])
+
+
+# m4_ifset(MACRO, [IF-TRUE], [IF-FALSE])
+# --------------------------------------
+# If MACRO has no definition, or of its definition is the empty string,
+# expand IF-FALSE, otherwise IF-TRUE.
+m4_define([m4_ifset],
+[m4_ifdef([$1],
+ [m4_ifval(m4_defn([$1]), [$2], [$3])],
+ [$3])])
+
+
+# m4_ifndef(NAME, [IF-NOT-DEFINED], [IF-DEFINED])
+# -----------------------------------------------
+m4_define([m4_ifndef],
+[m4_ifdef([$1], [$3], [$2])])
+
+
+# m4_case(SWITCH, VAL1, IF-VAL1, VAL2, IF-VAL2, ..., DEFAULT)
+# -----------------------------------------------------------
+# m4 equivalent of
+# switch (SWITCH)
+# {
+# case VAL1:
+# IF-VAL1;
+# break;
+# case VAL2:
+# IF-VAL2;
+# break;
+# ...
+# default:
+# DEFAULT;
+# break;
+# }.
+# All the values are optional, and the macro is robust to active
+# symbols properly quoted.
+m4_define([m4_case],
+[m4_if([$#], 0, [],
+ [$#], 1, [],
+ [$#], 2, [$2],
+ [$1], [$2], [$3],
+ [$0([$1], m4_shiftn(3, $@))])])
+
+
+# m4_bmatch(SWITCH, RE1, VAL1, RE2, VAL2, ..., DEFAULT)
+# -----------------------------------------------------
+# m4 equivalent of
+#
+# if (SWITCH =~ RE1)
+# VAL1;
+# elif (SWITCH =~ RE2)
+# VAL2;
+# elif ...
+# ...
+# else
+# DEFAULT
+#
+# All the values are optional, and the macro is robust to active symbols
+# properly quoted.
+m4_define([m4_bmatch],
+[m4_if([$#], 0, [m4_fatal([$0: too few arguments: $#])],
+ [$#], 1, [m4_fatal([$0: too few arguments: $#: $1])],
+ [$#], 2, [$2],
+ [m4_if(m4_bregexp([$1], [$2]), -1, [$0([$1], m4_shiftn(3, $@))],
+ [$3])])])
+
+
+# m4_car(LIST)
+# m4_cdr(LIST)
+# ------------
+# Manipulate m4 lists.
+m4_define([m4_car], [[$1]])
+m4_define([m4_cdr],
+[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
+ [$#], 1, [],
+ [m4_dquote(m4_shift($@))])])
+
+
+# m4_map(MACRO, LIST)
+# -------------------
+# Invoke MACRO($1), MACRO($2) etc. where $1, $2... are the elements
+# of LIST (which can be lists themselves, for multiple arguments MACROs).
+m4_define([m4_fst], [$1])
+m4_define([m4_map],
+[m4_if([$2], [[]], [],
+ [_m4_map([$1], [$2])])])
+m4_define([_m4_map],
+[m4_ifval([$2],
+ [$1(m4_fst($2))[]_m4_map([$1], m4_cdr($2))])])
+
+
+# m4_map_sep(MACRO, SEPARATOR, LIST)
+# ----------------------------------
+# Invoke MACRO($1), SEPARATOR, MACRO($2), ..., MACRO($N) where $1, $2... $N
+# are the elements of LIST (which can be lists themselves, for multiple
+# arguments MACROs).
+m4_define([m4_map_sep],
+[m4_if([$3], [[]], [],
+ [$1(m4_fst($3))[]_m4_map([$2[]$1], m4_cdr($3))])])
+
+
+## ---------------------------------------- ##
+## 6. Enhanced version of some primitives. ##
+## ---------------------------------------- ##
+
+# m4_bpatsubsts(STRING, RE1, SUBST1, RE2, SUBST2, ...)
+# ----------------------------------------------------
+# m4 equivalent of
+#
+# $_ = STRING;
+# s/RE1/SUBST1/g;
+# s/RE2/SUBST2/g;
+# ...
+#
+# All the values are optional, and the macro is robust to active symbols
+# properly quoted.
+#
+# I would have liked to name this macro `m4_bpatsubst', unfortunately,
+# due to quotation problems, I need to double quote $1 below, therefore
+# the anchors are broken :( I can't let users be trapped by that.
+m4_define([m4_bpatsubsts],
+[m4_if([$#], 0, [m4_fatal([$0: too few arguments: $#])],
+ [$#], 1, [m4_fatal([$0: too few arguments: $#: $1])],
+ [$#], 2, [m4_builtin([patsubst], $@)],
+ [$0(m4_builtin([patsubst], [[$1]], [$2], [$3]),
+ m4_shiftn(3, $@))])])
+
+
+
+# m4_do(STRING, ...)
+# ------------------
+# This macro invokes all its arguments (in sequence, of course). It is
+# useful for making your macros more structured and readable by dropping
+# unnecessary dnl's and have the macros indented properly.
+m4_define([m4_do],
+[m4_if($#, 0, [],
+ $#, 1, [$1],
+ [$1[]m4_do(m4_shift($@))])])
+
+
+# m4_define_default(MACRO, VALUE)
+# -------------------------------
+# If MACRO is undefined, set it to VALUE.
+m4_define([m4_define_default],
+[m4_ifndef([$1], [m4_define($@)])])
+
+
+# m4_default(EXP1, EXP2)
+# ----------------------
+# Returns EXP1 if non empty, otherwise EXP2.
+m4_define([m4_default],
+[m4_ifval([$1], [$1], [$2])])
+
+
+# m4_defn(NAME)
+# -------------
+# Unlike to the original, don't tolerate popping something which is
+# undefined.
+m4_define([m4_defn],
+[m4_ifndef([$1],
+ [m4_fatal([$0: undefined macro: $1])])dnl
+m4_builtin([defn], $@)])
+
+
+# _m4_dumpdefs_up(NAME)
+# ---------------------
+m4_define([_m4_dumpdefs_up],
+[m4_ifdef([$1],
+ [m4_pushdef([_m4_dumpdefs], m4_defn([$1]))dnl
+m4_dumpdef([$1])dnl
+m4_popdef([$1])dnl
+_m4_dumpdefs_up([$1])])])
+
+
+# _m4_dumpdefs_down(NAME)
+# -----------------------
+m4_define([_m4_dumpdefs_down],
+[m4_ifdef([_m4_dumpdefs],
+ [m4_pushdef([$1], m4_defn([_m4_dumpdefs]))dnl
+m4_popdef([_m4_dumpdefs])dnl
+_m4_dumpdefs_down([$1])])])
+
+
+# m4_dumpdefs(NAME)
+# -----------------
+# Similar to `m4_dumpdef(NAME)', but if NAME was m4_pushdef'ed, display its
+# value stack (most recent displayed first).
+m4_define([m4_dumpdefs],
+[_m4_dumpdefs_up([$1])dnl
+_m4_dumpdefs_down([$1])])
+
+
+# m4_popdef(NAME)
+# ---------------
+# Unlike to the original, don't tolerate popping something which is
+# undefined.
+m4_define([m4_popdef],
+[m4_ifndef([$1],
+ [m4_fatal([$0: undefined macro: $1])])dnl
+m4_builtin([popdef], $@)])
+
+
+# m4_quote(ARGS)
+# --------------
+# Return ARGS as a single arguments.
+#
+# It is important to realize the difference between `m4_quote(exp)' and
+# `[exp]': in the first case you obtain the quoted *result* of the
+# expansion of EXP, while in the latter you just obtain the string
+# `exp'.
+m4_define([m4_quote], [[$*]])
+m4_define([m4_dquote], [[$@]])
+
+
+# m4_noquote(STRING)
+# ------------------
+# Return the result of ignoring all quotes in STRING and invoking the
+# macros it contains. Amongst other things useful for enabling macro
+# invocations inside strings with [] blocks (for instance regexps and
+# help-strings).
+m4_define([m4_noquote],
+[m4_changequote(-=<{,}>=-)$1-=<{}>=-m4_changequote([,])])
+
+
+# m4_shiftn(N, ...)
+# -----------------
+# Returns ... shifted N times. Useful for recursive "varargs" constructs.
+m4_define([m4_shiftn],
+[m4_assert(($1 >= 0) && ($# > $1))dnl
+_m4_shiftn($@)])
+
+m4_define([_m4_shiftn],
+[m4_if([$1], 0,
+ [m4_shift($@)],
+ [_m4_shiftn(m4_eval([$1]-1), m4_shift(m4_shift($@)))])])
+
+
+# m4_undefine(NAME)
+# -----------------
+# Unlike to the original, don't tolerate undefining something which is
+# undefined.
+m4_define([m4_undefine],
+[m4_ifndef([$1],
+ [m4_fatal([$0: undefined macro: $1])])dnl
+m4_builtin([undefine], $@)])
+
+
+## -------------------------- ##
+## 7. Implementing m4 loops. ##
+## -------------------------- ##
+
+
+# m4_for(VARIABLE, FIRST, LAST, [STEP = +/-1], EXPRESSION)
+# --------------------------------------------------------
+# Expand EXPRESSION defining VARIABLE to FROM, FROM + 1, ..., TO.
+# Both limits are included, and bounds are checked for consistency.
+m4_define([m4_for],
+[m4_case(m4_sign(m4_eval($3 - $2)),
+ 1, [m4_assert(m4_sign(m4_default($4, 1)) == 1)],
+ -1, [m4_assert(m4_sign(m4_default($4, -1)) == -1)])dnl
+m4_pushdef([$1], [$2])dnl
+m4_if(m4_eval([$3 > $2]), 1,
+ [_m4_for([$1], [$3], m4_default([$4], 1), [$5])],
+ [_m4_for([$1], [$3], m4_default([$4], -1), [$5])])dnl
+m4_popdef([$1])])
+
+
+# _m4_for(VARIABLE, FIRST, LAST, STEP, EXPRESSION)
+# ------------------------------------------------
+# Core of the loop, no consistency checks.
+m4_define([_m4_for],
+[$4[]dnl
+m4_if($1, [$2], [],
+ [m4_define([$1], m4_eval($1+[$3]))_m4_for([$1], [$2], [$3], [$4])])])
+
+
+# Implementing `foreach' loops in m4 is much more tricky than it may
+# seem. Actually, the example of a `foreach' loop in the m4
+# documentation is wrong: it does not quote the arguments properly,
+# which leads to undesirable expansions.
+#
+# The example in the documentation is:
+#
+# | # foreach(VAR, (LIST), STMT)
+# | m4_define([foreach],
+# | [m4_pushdef([$1])_foreach([$1], [$2], [$3])m4_popdef([$1])])
+# | m4_define([_arg1], [$1])
+# | m4_define([_foreach],
+# | [m4_if([$2], [()], ,
+# | [m4_define([$1], _arg1$2)$3[]_foreach([$1],
+# | (shift$2),
+# | [$3])])])
+#
+# But then if you run
+#
+# | m4_define(a, 1)
+# | m4_define(b, 2)
+# | m4_define(c, 3)
+# | foreach([f], [([a], [(b], [c)])], [echo f
+# | ])
+#
+# it gives
+#
+# => echo 1
+# => echo (2,3)
+#
+# which is not what is expected.
+#
+# Of course the problem is that many quotes are missing. So you add
+# plenty of quotes at random places, until you reach the expected
+# result. Alternatively, if you are a quoting wizard, you directly
+# reach the following implementation (but if you really did, then
+# apply to the maintenance of m4sugar!).
+#
+# | # foreach(VAR, (LIST), STMT)
+# | m4_define([foreach], [m4_pushdef([$1])_foreach($@)m4_popdef([$1])])
+# | m4_define([_arg1], [[$1]])
+# | m4_define([_foreach],
+# | [m4_if($2, [()], ,
+# | [m4_define([$1], [_arg1$2])$3[]_foreach([$1],
+# | [(shift$2)],
+# | [$3])])])
+#
+# which this time answers
+#
+# => echo a
+# => echo (b
+# => echo c)
+#
+# Bingo!
+#
+# Well, not quite.
+#
+# With a better look, you realize that the parens are more a pain than
+# a help: since anyway you need to quote properly the list, you end up
+# with always using an outermost pair of parens and an outermost pair
+# of quotes. Rejecting the parens both eases the implementation, and
+# simplifies the use:
+#
+# | # foreach(VAR, (LIST), STMT)
+# | m4_define([foreach], [m4_pushdef([$1])_foreach($@)m4_popdef([$1])])
+# | m4_define([_arg1], [$1])
+# | m4_define([_foreach],
+# | [m4_if($2, [], ,
+# | [m4_define([$1], [_arg1($2)])$3[]_foreach([$1],
+# | [shift($2)],
+# | [$3])])])
+#
+#
+# Now, just replace the `$2' with `m4_quote($2)' in the outer `m4_if'
+# to improve robustness, and you come up with a quite satisfactory
+# implementation.
+
+
+# m4_foreach(VARIABLE, LIST, EXPRESSION)
+# --------------------------------------
+#
+# Expand EXPRESSION assigning each value of the LIST to VARIABLE.
+# LIST should have the form `item_1, item_2, ..., item_n', i.e. the
+# whole list must *quoted*. Quote members too if you don't want them
+# to be expanded.
+#
+# This macro is robust to active symbols:
+# | m4_define(active, [ACT, IVE])
+# | m4_foreach(Var, [active, active], [-Var-])
+# => -ACT--IVE--ACT--IVE-
+#
+# | m4_foreach(Var, [[active], [active]], [-Var-])
+# => -ACT, IVE--ACT, IVE-
+#
+# | m4_foreach(Var, [[[active]], [[active]]], [-Var-])
+# => -active--active-
+m4_define([m4_foreach],
+[m4_pushdef([$1])_m4_foreach($@)m4_popdef([$1])])
+
+m4_define([_m4_foreach],
+[m4_ifval([$2],
+ [m4_define([$1], m4_car($2))$3[]dnl
+_m4_foreach([$1], m4_cdr($2), [$3])])])
+
+
+# m4_foreach_w(VARIABLE, LIST, EXPRESSION)
+# ----------------------------------------
+#
+# Like m4_foreach, but the list is whitespace separated.
+#
+# This macro is robust to active symbols:
+# m4_foreach_w([Var], [ active
+# b act\
+# ive ], [-Var-])end
+# => -active--b--active-end
+#
+m4_define([m4_foreach_w],
+[m4_foreach([$1], m4_split(m4_normalize([$2])), [$3])])
+
+
+
+## --------------------------- ##
+## 8. More diversion support. ##
+## --------------------------- ##
+
+
+# _m4_divert(DIVERSION-NAME or NUMBER)
+# ------------------------------------
+# If DIVERSION-NAME is the name of a diversion, return its number,
+# otherwise if it is a NUMBER return it.
+m4_define([_m4_divert],
+[m4_ifdef([_m4_divert($1)],
+ [m4_indir([_m4_divert($1)])],
+ [$1])])
+
+# KILL is only used to suppress output.
+m4_define([_m4_divert(KILL)], -1)
+
+
+# _m4_divert_n_stack
+# ------------------
+# Print m4_divert_stack with newline prepended, if it's nonempty.
+m4_define([_m4_divert_n_stack],
+[m4_ifdef([m4_divert_stack], [
+m4_defn([m4_divert_stack])])])
+
+
+# m4_divert(DIVERSION-NAME)
+# -------------------------
+# Change the diversion stream to DIVERSION-NAME.
+m4_define([m4_divert],
+[m4_define([m4_divert_stack], m4_location[: $0: $1]_m4_divert_n_stack)dnl
+m4_builtin([divert], _m4_divert([$1]))dnl
+])
+
+
+# m4_divert_push(DIVERSION-NAME)
+# ------------------------------
+# Change the diversion stream to DIVERSION-NAME, while stacking old values.
+m4_define([m4_divert_push],
+[m4_pushdef([m4_divert_stack], m4_location[: $0: $1]_m4_divert_n_stack)dnl
+m4_pushdef([_m4_divert_diversion], [$1])dnl
+m4_builtin([divert], _m4_divert([$1]))dnl
+])
+
+
+# m4_divert_pop([DIVERSION-NAME])
+# -------------------------------
+# Change the diversion stream to its previous value, unstacking it.
+# If specified, verify we left DIVERSION-NAME.
+# When we pop the last value from the stack, we divert to -1.
+m4_define([m4_divert_pop],
+[m4_ifndef([_m4_divert_diversion],
+ [m4_fatal([too many m4_divert_pop])])dnl
+m4_if([$1], [], [],
+ [$1], m4_defn([_m4_divert_diversion]), [],
+ [m4_fatal([$0($1): diversion mismatch: ]_m4_divert_n_stack)])dnl
+m4_popdef([m4_divert_stack])dnl
+m4_popdef([_m4_divert_diversion])dnl
+m4_builtin([divert],
+ m4_ifdef([_m4_divert_diversion],
+ [_m4_divert(m4_defn([_m4_divert_diversion]))],
+ -1))dnl
+])
+
+
+# m4_divert_text(DIVERSION-NAME, CONTENT)
+# ---------------------------------------
+# Output CONTENT into DIVERSION-NAME (which may be a number actually).
+# An end of line is appended for free to CONTENT.
+m4_define([m4_divert_text],
+[m4_divert_push([$1])dnl
+$2
+m4_divert_pop([$1])dnl
+])
+
+
+# m4_divert_once(DIVERSION-NAME, CONTENT)
+# ---------------------------------------
+# Output once CONTENT into DIVERSION-NAME (which may be a number
+# actually). An end of line is appended for free to CONTENT.
+m4_define([m4_divert_once],
+[m4_expand_once([m4_divert_text([$1], [$2])])])
+
+
+# m4_undivert(DIVERSION-NAME)
+# ---------------------------
+# Undivert DIVERSION-NAME.
+m4_define([m4_undivert],
+[m4_builtin([undivert], _m4_divert([$1]))])
+
+
+## -------------------------------------------- ##
+## 8. Defining macros with bells and whistles. ##
+## -------------------------------------------- ##
+
+# `m4_defun' is basically `m4_define' but it equips the macro with the
+# needed machinery for `m4_require'. A macro must be m4_defun'd if
+# either it is m4_require'd, or it m4_require's.
+#
+# Two things deserve attention and are detailed below:
+# 1. Implementation of m4_require
+# 2. Keeping track of the expansion stack
+#
+# 1. Implementation of m4_require
+# ===============================
+#
+# Of course m4_defun AC_PROVIDE's the macro, so that a macro which has
+# been expanded is not expanded again when m4_require'd, but the
+# difficult part is the proper expansion of macros when they are
+# m4_require'd.
+#
+# The implementation is based on two ideas, (i) using diversions to
+# prepare the expansion of the macro and its dependencies (by Franc,ois
+# Pinard), and (ii) expand the most recently m4_require'd macros _after_
+# the previous macros (by Axel Thimm).
+#
+#
+# The first idea: why using diversions?
+# -------------------------------------
+#
+# When a macro requires another, the other macro is expanded in new
+# diversion, GROW. When the outer macro is fully expanded, we first
+# undivert the most nested diversions (GROW - 1...), and finally
+# undivert GROW. To understand why we need several diversions,
+# consider the following example:
+#
+# | m4_defun([TEST1], [Test...REQUIRE([TEST2])1])
+# | m4_defun([TEST2], [Test...REQUIRE([TEST3])2])
+# | m4_defun([TEST3], [Test...3])
+#
+# Because m4_require is not required to be first in the outer macros, we
+# must keep the expansions of the various level of m4_require separated.
+# Right before executing the epilogue of TEST1, we have:
+#
+# GROW - 2: Test...3
+# GROW - 1: Test...2
+# GROW: Test...1
+# BODY:
+#
+# Finally the epilogue of TEST1 undiverts GROW - 2, GROW - 1, and
+# GROW into the regular flow, BODY.
+#
+# GROW - 2:
+# GROW - 1:
+# GROW:
+# BODY: Test...3; Test...2; Test...1
+#
+# (The semicolons are here for clarification, but of course are not
+# emitted.) This is what Autoconf 2.0 (I think) to 2.13 (I'm sure)
+# implement.
+#
+#
+# The second idea: first required first out
+# -----------------------------------------
+#
+# The natural implementation of the idea above is buggy and produces
+# very surprising results in some situations. Let's consider the
+# following example to explain the bug:
+#
+# | m4_defun([TEST1], [REQUIRE([TEST2a])REQUIRE([TEST2b])])
+# | m4_defun([TEST2a], [])
+# | m4_defun([TEST2b], [REQUIRE([TEST3])])
+# | m4_defun([TEST3], [REQUIRE([TEST2a])])
+# |
+# | AC_INIT
+# | TEST1
+#
+# The dependencies between the macros are:
+#
+# 3 --- 2b
+# / \ is m4_require'd by
+# / \ left -------------------- right
+# 2a ------------ 1
+#
+# If you strictly apply the rules given in the previous section you get:
+#
+# GROW - 2: TEST3
+# GROW - 1: TEST2a; TEST2b
+# GROW: TEST1
+# BODY:
+#
+# (TEST2a, although required by TEST3 is not expanded in GROW - 3
+# because is has already been expanded before in GROW - 1, so it has
+# been AC_PROVIDE'd, so it is not expanded again) so when you undivert
+# the stack of diversions, you get:
+#
+# GROW - 2:
+# GROW - 1:
+# GROW:
+# BODY: TEST3; TEST2a; TEST2b; TEST1
+#
+# i.e., TEST2a is expanded after TEST3 although the latter required the
+# former.
+#
+# Starting from 2.50, uses an implementation provided by Axel Thimm.
+# The idea is simple: the order in which macros are emitted must be the
+# same as the one in which macro are expanded. (The bug above can
+# indeed be described as: a macro has been AC_PROVIDE'd, but it is
+# emitted after: the lack of correlation between emission and expansion
+# order is guilty).
+#
+# How to do that? You keeping the stack of diversions to elaborate the
+# macros, but each time a macro is fully expanded, emit it immediately.
+#
+# In the example above, when TEST2a is expanded, but it's epilogue is
+# not run yet, you have:
+#
+# GROW - 2:
+# GROW - 1: TEST2a
+# GROW: Elaboration of TEST1
+# BODY:
+#
+# The epilogue of TEST2a emits it immediately:
+#
+# GROW - 2:
+# GROW - 1:
+# GROW: Elaboration of TEST1
+# BODY: TEST2a
+#
+# TEST2b then requires TEST3, so right before the epilogue of TEST3, you
+# have:
+#
+# GROW - 2: TEST3
+# GROW - 1: Elaboration of TEST2b
+# GROW: Elaboration of TEST1
+# BODY: TEST2a
+#
+# The epilogue of TEST3 emits it:
+#
+# GROW - 2:
+# GROW - 1: Elaboration of TEST2b
+# GROW: Elaboration of TEST1
+# BODY: TEST2a; TEST3
+#
+# TEST2b is now completely expanded, and emitted:
+#
+# GROW - 2:
+# GROW - 1:
+# GROW: Elaboration of TEST1
+# BODY: TEST2a; TEST3; TEST2b
+#
+# and finally, TEST1 is finished and emitted:
+#
+# GROW - 2:
+# GROW - 1:
+# GROW:
+# BODY: TEST2a; TEST3; TEST2b: TEST1
+#
+# The idea is simple, but the implementation is a bit evolved. If you
+# are like me, you will want to see the actual functioning of this
+# implementation to be convinced. The next section gives the full
+# details.
+#
+#
+# The Axel Thimm implementation at work
+# -------------------------------------
+#
+# We consider the macros above, and this configure.ac:
+#
+# AC_INIT
+# TEST1
+#
+# You should keep the definitions of _m4_defun_pro, _m4_defun_epi, and
+# m4_require at hand to follow the steps.
+#
+# This implements tries not to assume that the current diversion is
+# BODY, so as soon as a macro (m4_defun'd) is expanded, we first
+# record the current diversion under the name _m4_divert_dump (denoted
+# DUMP below for short). This introduces an important difference with
+# the previous versions of Autoconf: you cannot use m4_require if you
+# are not inside an m4_defun'd macro, and especially, you cannot
+# m4_require directly from the top level.
+#
+# We have not tried to simulate the old behavior (better yet, we
+# diagnose it), because it is too dangerous: a macro m4_require'd from
+# the top level is expanded before the body of `configure', i.e., before
+# any other test was run. I let you imagine the result of requiring
+# AC_STDC_HEADERS for instance, before AC_PROG_CC was actually run....
+#
+# After AC_INIT was run, the current diversion is BODY.
+# * AC_INIT was run
+# DUMP: undefined
+# diversion stack: BODY |-
+#
+# * TEST1 is expanded
+# The prologue of TEST1 sets _m4_divert_dump, which is the diversion
+# where the current elaboration will be dumped, to the current
+# diversion. It also m4_divert_push to GROW, where the full
+# expansion of TEST1 and its dependencies will be elaborated.
+# DUMP: BODY
+# BODY: empty
+# diversions: GROW, BODY |-
+#
+# * TEST1 requires TEST2a
+# _m4_require_call m4_divert_pushes another temporary diversion,
+# GROW - 1, and expands TEST2a in there.
+# DUMP: BODY
+# BODY: empty
+# GROW - 1: TEST2a
+# diversions: GROW - 1, GROW, BODY |-
+# Than the content of the temporary diversion is moved to DUMP and the
+# temporary diversion is popped.
+# DUMP: BODY
+# BODY: TEST2a
+# diversions: GROW, BODY |-
+#
+# * TEST1 requires TEST2b
+# Again, _m4_require_call pushes GROW - 1 and heads to expand TEST2b.
+# DUMP: BODY
+# BODY: TEST2a
+# diversions: GROW - 1, GROW, BODY |-
+#
+# * TEST2b requires TEST3
+# _m4_require_call pushes GROW - 2 and expands TEST3 here.
+# (TEST3 requires TEST2a, but TEST2a has already been m4_provide'd, so
+# nothing happens.)
+# DUMP: BODY
+# BODY: TEST2a
+# GROW - 2: TEST3
+# diversions: GROW - 2, GROW - 1, GROW, BODY |-
+# Than the diversion is appended to DUMP, and popped.
+# DUMP: BODY
+# BODY: TEST2a; TEST3
+# diversions: GROW - 1, GROW, BODY |-
+#
+# * TEST1 requires TEST2b (contd.)
+# The content of TEST2b is expanded...
+# DUMP: BODY
+# BODY: TEST2a; TEST3
+# GROW - 1: TEST2b,
+# diversions: GROW - 1, GROW, BODY |-
+# ... and moved to DUMP.
+# DUMP: BODY
+# BODY: TEST2a; TEST3; TEST2b
+# diversions: GROW, BODY |-
+#
+# * TEST1 is expanded: epilogue
+# TEST1's own content is in GROW...
+# DUMP: BODY
+# BODY: TEST2a; TEST3; TEST2b
+# GROW: TEST1
+# diversions: BODY |-
+# ... and it's epilogue moves it to DUMP and then undefines DUMP.
+# DUMP: undefined
+# BODY: TEST2a; TEST3; TEST2b; TEST1
+# diversions: BODY |-
+#
+#
+# 2. Keeping track of the expansion stack
+# =======================================
+#
+# When M4 expansion goes wrong it is often extremely hard to find the
+# path amongst macros that drove to the failure. What is needed is
+# the stack of macro `calls'. One could imagine that GNU M4 would
+# maintain a stack of macro expansions, unfortunately it doesn't, so
+# we do it by hand. This is of course extremely costly, but the help
+# this stack provides is worth it. Nevertheless to limit the
+# performance penalty this is implemented only for m4_defun'd macros,
+# not for define'd macros.
+#
+# The scheme is simplistic: each time we enter an m4_defun'd macros,
+# we prepend its name in m4_expansion_stack, and when we exit the
+# macro, we remove it (thanks to pushdef/popdef).
+#
+# In addition, we want to detect circular m4_require dependencies.
+# Each time we expand a macro FOO we define _m4_expanding(FOO); and
+# m4_require(BAR) simply checks whether _m4_expanding(BAR) is defined.
+
+
+# m4_expansion_stack_push(TEXT)
+# -----------------------------
+m4_define([m4_expansion_stack_push],
+[m4_pushdef([m4_expansion_stack],
+ [$1]m4_ifdef([m4_expansion_stack], [
+m4_defn([m4_expansion_stack])]))])
+
+
+# m4_expansion_stack_pop
+# ----------------------
+m4_define([m4_expansion_stack_pop],
+[m4_popdef([m4_expansion_stack])])
+
+
+# m4_expansion_stack_dump
+# -----------------------
+# Dump the expansion stack.
+m4_define([m4_expansion_stack_dump],
+[m4_ifdef([m4_expansion_stack],
+ [m4_errprintn(m4_defn([m4_expansion_stack]))])dnl
+m4_errprintn(m4_location[: the top level])])
+
+
+# _m4_divert(GROW)
+# ----------------
+# This diversion is used by the m4_defun/m4_require machinery. It is
+# important to keep room before GROW because for each nested
+# AC_REQUIRE we use an additional diversion (i.e., two m4_require's
+# will use GROW - 2. More than 3 levels has never seemed to be
+# needed.)
+#
+# ...
+# - GROW - 2
+# m4_require'd code, 2 level deep
+# - GROW - 1
+# m4_require'd code, 1 level deep
+# - GROW
+# m4_defun'd macros are elaborated here.
+
+m4_define([_m4_divert(GROW)], 10000)
+
+
+# _m4_defun_pro(MACRO-NAME)
+# -------------------------
+# The prologue for Autoconf macros.
+m4_define([_m4_defun_pro],
+[m4_ifndef([m4_expansion_stack], [_m4_defun_pro_outer[]])dnl
+m4_expansion_stack_push(m4_defn([m4_location($1)])[: $1 is expanded from...])dnl
+m4_pushdef([_m4_expanding($1)])dnl
+])
+
+m4_define([_m4_defun_pro_outer],
+[m4_copy([_m4_divert_diversion], [_m4_divert_dump])dnl
+m4_divert_push([GROW])dnl
+])
+
+# _m4_defun_epi(MACRO-NAME)
+# -------------------------
+# The Epilogue for Autoconf macros. MACRO-NAME only helps tracing
+# the PRO/EPI pairs.
+m4_define([_m4_defun_epi],
+[m4_popdef([_m4_expanding($1)])dnl
+m4_expansion_stack_pop()dnl
+m4_ifndef([m4_expansion_stack], [_m4_defun_epi_outer[]])dnl
+m4_provide([$1])dnl
+])
+
+m4_define([_m4_defun_epi_outer],
+[m4_undefine([_m4_divert_dump])dnl
+m4_divert_pop([GROW])dnl
+m4_undivert([GROW])dnl
+])
+
+
+# m4_defun(NAME, EXPANSION)
+# -------------------------
+# Define a macro which automatically provides itself. Add machinery
+# so the macro automatically switches expansion to the diversion
+# stack if it is not already using it. In this case, once finished,
+# it will bring back all the code accumulated in the diversion stack.
+# This, combined with m4_require, achieves the topological ordering of
+# macros. We don't use this macro to define some frequently called
+# macros that are not involved in ordering constraints, to save m4
+# processing.
+m4_define([m4_defun],
+[m4_define([m4_location($1)], m4_location)dnl
+m4_define([$1],
+ [_m4_defun_pro([$1])$2[]_m4_defun_epi([$1])])])
+
+
+# m4_defun_once(NAME, EXPANSION)
+# ------------------------------
+# As m4_defun, but issues the EXPANSION only once, and warns if used
+# several times.
+m4_define([m4_defun_once],
+[m4_define([m4_location($1)], m4_location)dnl
+m4_define([$1],
+ [m4_provide_if([$1],
+ [m4_warn([syntax], [$1 invoked multiple times])],
+ [_m4_defun_pro([$1])$2[]_m4_defun_epi([$1])])])])
+
+
+# m4_pattern_forbid(ERE, [WHY])
+# -----------------------------
+# Declare that no token matching the extended regular expression ERE
+# should be seen in the output but if...
+m4_define([m4_pattern_forbid], [])
+
+
+# m4_pattern_allow(ERE)
+# ---------------------
+# ... but if that token matches the extended regular expression ERE.
+# Both used via traces.
+m4_define([m4_pattern_allow], [])
+
+
+## ----------------------------- ##
+## Dependencies between macros. ##
+## ----------------------------- ##
+
+
+# m4_before(THIS-MACRO-NAME, CALLED-MACRO-NAME)
+# ---------------------------------------------
+m4_define([m4_before],
+[m4_provide_if([$2],
+ [m4_warn([syntax], [$2 was called before $1])])])
+
+
+# m4_require(NAME-TO-CHECK, [BODY-TO-EXPAND = NAME-TO-CHECK])
+# -----------------------------------------------------------
+# If NAME-TO-CHECK has never been expanded (actually, if it is not
+# m4_provide'd), expand BODY-TO-EXPAND *before* the current macro
+# expansion. Once expanded, emit it in _m4_divert_dump. Keep track
+# of the m4_require chain in m4_expansion_stack.
+#
+# The normal cases are:
+#
+# - NAME-TO-CHECK == BODY-TO-EXPAND
+# Which you can use for regular macros with or without arguments, e.g.,
+# m4_require([AC_PROG_CC], [AC_PROG_CC])
+# m4_require([AC_CHECK_HEADERS(limits.h)], [AC_CHECK_HEADERS(limits.h)])
+# which is just the same as
+# m4_require([AC_PROG_CC])
+# m4_require([AC_CHECK_HEADERS(limits.h)])
+#
+# - BODY-TO-EXPAND == m4_indir([NAME-TO-CHECK])
+# In the case of macros with irregular names. For instance:
+# m4_require([AC_LANG_COMPILER(C)], [indir([AC_LANG_COMPILER(C)])])
+# which means `if the macro named `AC_LANG_COMPILER(C)' (the parens are
+# part of the name, it is not an argument) has not been run, then
+# call it.'
+# Had you used
+# m4_require([AC_LANG_COMPILER(C)], [AC_LANG_COMPILER(C)])
+# then m4_require would have tried to expand `AC_LANG_COMPILER(C)', i.e.,
+# call the macro `AC_LANG_COMPILER' with `C' as argument.
+#
+# You could argue that `AC_LANG_COMPILER', when it receives an argument
+# such as `C' should dispatch the call to `AC_LANG_COMPILER(C)'. But this
+# `extension' prevents `AC_LANG_COMPILER' from having actual arguments that
+# it passes to `AC_LANG_COMPILER(C)'.
+m4_define([m4_require],
+[m4_ifdef([_m4_expanding($1)],
+ [m4_fatal([$0: circular dependency of $1])])dnl
+m4_ifndef([_m4_divert_dump],
+ [m4_fatal([$0($1): cannot be used outside of an m4_defun'd macro])])dnl
+m4_provide_if([$1],
+ [],
+ [_m4_require_call([$1], [$2])])dnl
+])
+
+
+# _m4_require_call(BODY-TO-EXPAND)
+# --------------------------------
+# If m4_require decides to expand the body, it calls this macro.
+m4_define([_m4_require_call],
+[m4_define([_m4_divert_grow], m4_decr(_m4_divert_grow))dnl
+m4_divert_push(_m4_divert_grow)dnl
+m4_default([$2], [$1])
+m4_provide_if([$1],
+ [],
+ [m4_warn([syntax],
+ [$1 is m4_require'd but not m4_defun'd])])dnl
+m4_divert(m4_defn([_m4_divert_dump]))dnl
+m4_undivert(_m4_divert_grow)dnl
+m4_divert_pop(_m4_divert_grow)dnl
+m4_define([_m4_divert_grow], m4_incr(_m4_divert_grow))dnl
+])
+
+
+# _m4_divert_grow
+# ---------------
+# The counter for _m4_require_call.
+m4_define([_m4_divert_grow], _m4_divert([GROW]))
+
+
+# m4_expand_once(TEXT, [WITNESS = TEXT])
+# --------------------------------------
+# If TEXT has never been expanded, expand it *here*. Use WITNESS as
+# as a memory that TEXT has already been expanded.
+m4_define([m4_expand_once],
+[m4_provide_if(m4_ifval([$2], [[$2]], [[$1]]),
+ [],
+ [m4_provide(m4_ifval([$2], [[$2]], [[$1]]))[]$1])])
+
+
+# m4_provide(MACRO-NAME)
+# ----------------------
+m4_define([m4_provide],
+[m4_define([m4_provide($1)])])
+
+
+# m4_provide_if(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
+# -------------------------------------------------------
+# If MACRO-NAME is provided do IF-PROVIDED, else IF-NOT-PROVIDED.
+# The purpose of this macro is to provide the user with a means to
+# check macros which are provided without letting her know how the
+# information is coded.
+m4_define([m4_provide_if],
+[m4_ifdef([m4_provide($1)],
+ [$2], [$3])])
+
+
+## -------------------- ##
+## 9. Text processing. ##
+## -------------------- ##
+
+
+# m4_cr_letters
+# m4_cr_LETTERS
+# m4_cr_Letters
+# -------------
+m4_define([m4_cr_letters], [abcdefghijklmnopqrstuvwxyz])
+m4_define([m4_cr_LETTERS], [ABCDEFGHIJKLMNOPQRSTUVWXYZ])
+m4_define([m4_cr_Letters],
+m4_defn([m4_cr_letters])dnl
+m4_defn([m4_cr_LETTERS])dnl
+)
+
+
+# m4_cr_digits
+# ------------
+m4_define([m4_cr_digits], [0123456789])
+
+
+# m4_cr_symbols1 & m4_cr_symbols2
+# -------------------------------
+m4_define([m4_cr_symbols1],
+m4_defn([m4_cr_Letters])dnl
+_)
+
+m4_define([m4_cr_symbols2],
+m4_defn([m4_cr_symbols1])dnl
+m4_defn([m4_cr_digits])dnl
+)
+
+
+# m4_re_escape(STRING)
+# --------------------
+# Escape RE active characters in STRING.
+m4_define([m4_re_escape],
+[m4_bpatsubst([$1],
+ [[][*+.?\^$]], [\\\&])])
+
+
+# m4_re_string
+# ------------
+# Regexp for `[a-zA-Z_0-9]*'
+# m4_dquote provides literal [] for the character class.
+m4_define([m4_re_string],
+m4_dquote(m4_defn([m4_cr_symbols2]))dnl
+[*]dnl
+)
+
+
+# m4_re_word
+# ----------
+# Regexp for `[a-zA-Z_][a-zA-Z_0-9]*'
+m4_define([m4_re_word],
+m4_dquote(m4_defn([m4_cr_symbols1]))dnl
+m4_defn([m4_re_string])dnl
+)
+
+
+# m4_tolower(STRING)
+# m4_toupper(STRING)
+# ------------------
+# These macros lowercase and uppercase strings.
+m4_define([m4_tolower],
+[m4_translit([$1], m4_defn([m4_cr_LETTERS]), m4_defn([m4_cr_letters]))])
+m4_define([m4_toupper],
+[m4_translit([$1], m4_defn([m4_cr_letters]), m4_defn([m4_cr_LETTERS]))])
+
+
+# m4_split(STRING, [REGEXP])
+# --------------------------
+#
+# Split STRING into an m4 list of quoted elements. The elements are
+# quoted with [ and ]. Beginning spaces and end spaces *are kept*.
+# Use m4_strip to remove them.
+#
+# REGEXP specifies where to split. Default is [\t ]+.
+#
+# If STRING is empty, the result is an empty list.
+#
+# Pay attention to the m4_changequotes. When m4 reads the definition of
+# m4_split, it still has quotes set to [ and ]. Luckily, these are matched
+# in the macro body, so the definition is stored correctly.
+#
+# Also, notice that $1 is quoted twice, since we want the result to
+# be quoted. Then you should understand that the argument of
+# patsubst is ``STRING'' (i.e., with additional `` and '').
+#
+# This macro is safe on active symbols, i.e.:
+# m4_define(active, ACTIVE)
+# m4_split([active active ])end
+# => [active], [active], []end
+
+m4_define([m4_split],
+[m4_ifval([$1], [_m4_split($@)])])
+
+m4_define([_m4_split],
+[m4_changequote(``, '')dnl
+[dnl Can't use m4_default here instead of m4_if, because m4_default uses
+dnl [ and ] as quotes.
+m4_bpatsubst(````$1'''',
+ m4_if(``$2'',, ``[ ]+'', ``$2''),
+ ``], ['')]dnl
+m4_changequote([, ])])
+
+
+
+# m4_flatten(STRING)
+# ------------------
+# If STRING contains end of lines, replace them with spaces. If there
+# are backslashed end of lines, remove them. This macro is safe with
+# active symbols.
+# m4_define(active, ACTIVE)
+# m4_flatten([active
+# act\
+# ive])end
+# => active activeend
+m4_define([m4_flatten],
+[m4_translit(m4_bpatsubst([[[$1]]], [\\
+]), [
+], [ ])])
+
+
+# m4_strip(STRING)
+# ----------------
+# Expands into STRING with tabs and spaces singled out into a single
+# space, and removing leading and trailing spaces.
+#
+# This macro is robust to active symbols.
+# m4_define(active, ACTIVE)
+# m4_strip([ active <tab> <tab>active ])end
+# => active activeend
+#
+# Because we want to preserve active symbols, STRING must be double-quoted.
+#
+# Then notice the 2 last patterns: they are in charge of removing the
+# leading/trailing spaces. Why not just `[^ ]'? Because they are
+# applied to doubly quoted strings, i.e. more or less [[STRING]]. So
+# if there is a leading space in STRING, then it is the *third*
+# character, since there are two leading `['; equally for the last pattern.
+m4_define([m4_strip],
+[m4_bpatsubsts([[$1]],
+ [[ ]+], [ ],
+ [^\(..\) ], [\1],
+ [ \(..\)$], [\1])])
+
+
+# m4_normalize(STRING)
+# --------------------
+# Apply m4_flatten and m4_strip to STRING.
+#
+# The argument is quoted, so that the macro is robust to active symbols:
+#
+# m4_define(active, ACTIVE)
+# m4_normalize([ act\
+# ive
+# active ])end
+# => active activeend
+
+m4_define([m4_normalize],
+[m4_strip(m4_flatten([$1]))])
+
+
+
+# m4_join(SEP, ARG1, ARG2...)
+# ---------------------------
+# Produce ARG1SEPARG2...SEPARGn.
+m4_defun([m4_join],
+[m4_case([$#],
+ [1], [],
+ [2], [[$2]],
+ [[$2][$1]$0([$1], m4_shiftn(2, $@))])])
+
+
+
+# m4_append(MACRO-NAME, STRING, [SEPARATOR])
+# ------------------------------------------
+# Redefine MACRO-NAME to hold its former content plus `SEPARATOR`'STRING'
+# at the end. It is valid to use this macro with MACRO-NAME undefined,
+# in which case no SEPARATOR is added. Be aware that the criterion is
+# `not being defined', and not `not being empty'.
+#
+# This macro is robust to active symbols. It can be used to grow
+# strings.
+#
+# | m4_define(active, ACTIVE)
+# | m4_append([sentence], [This is an])
+# | m4_append([sentence], [ active ])
+# | m4_append([sentence], [symbol.])
+# | sentence
+# | m4_undefine([active])dnl
+# | sentence
+# => This is an ACTIVE symbol.
+# => This is an active symbol.
+#
+# It can be used to define hooks.
+#
+# | m4_define(active, ACTIVE)
+# | m4_append([hooks], [m4_define([act1], [act2])])
+# | m4_append([hooks], [m4_define([act2], [active])])
+# | m4_undefine([active])
+# | act1
+# | hooks
+# | act1
+# => act1
+# =>
+# => active
+m4_define([m4_append],
+[m4_define([$1],
+ m4_ifdef([$1], [m4_defn([$1])$3])[$2])])
+
+# m4_prepend(MACRO-NAME, STRING, [SEPARATOR])
+# -------------------------------------------
+# Same, but prepend.
+m4_define([m4_prepend],
+[m4_define([$1],
+ [$2]m4_ifdef([$1], [$3[]m4_defn([$1])]))])
+
+# m4_append_uniq(MACRO-NAME, STRING, [SEPARATOR])
+# -----------------------------------------------
+# As `m4_append', but append only if not yet present.
+m4_define([m4_append_uniq],
+[m4_ifdef([$1],
+ [m4_bmatch([$3]m4_defn([$1])[$3], m4_re_escape([$3$2$3]), [],
+ [m4_append($@)])],
+ [m4_append($@)])])
+
+
+# m4_text_wrap(STRING, [PREFIX], [FIRST-PREFIX], [WIDTH])
+# -------------------------------------------------------
+# Expands into STRING wrapped to hold in WIDTH columns (default = 79).
+# If PREFIX is given, each line is prefixed with it. If FIRST-PREFIX is
+# specified, then the first line is prefixed with it. As a special case,
+# if the length of FIRST-PREFIX is greater than that of PREFIX, then
+# FIRST-PREFIX will be left alone on the first line.
+#
+# Typical outputs are:
+#
+# m4_text_wrap([Short string */], [ ], [/* ], 20)
+# => /* Short string */
+#
+# m4_text_wrap([Much longer string */], [ ], [/* ], 20)
+# => /* Much longer
+# => string */
+#
+# m4_text_wrap([Short doc.], [ ], [ --short ], 30)
+# => --short Short doc.
+#
+# m4_text_wrap([Short doc.], [ ], [ --too-wide ], 30)
+# => --too-wide
+# => Short doc.
+#
+# m4_text_wrap([Super long documentation.], [ ], [ --too-wide ], 30)
+# => --too-wide
+# => Super long
+# => documentation.
+#
+# FIXME: there is no checking of a longer PREFIX than WIDTH, but do
+# we really want to bother with people trying each single corner
+# of a software?
+#
+# more important:
+# FIXME: handle quadrigraphs correctly, both in TEXT and in FIRST_PREFIX.
+#
+# This macro does not leave a trailing space behind the last word,
+# what complicates it a bit. The algorithm is stupid simple: all the
+# words are preceded by m4_Separator which is defined to empty for the
+# first word, and then ` ' (single space) for all the others.
+m4_define([m4_text_wrap],
+[m4_pushdef([m4_Prefix], [$2])dnl
+m4_pushdef([m4_Prefix1], m4_default([$3], [m4_Prefix]))dnl
+m4_pushdef([m4_Width], m4_default([$4], 79))dnl
+m4_pushdef([m4_Cursor], m4_len(m4_Prefix1))dnl
+m4_pushdef([m4_Separator], [])dnl
+m4_Prefix1[]dnl
+m4_if(m4_eval(m4_Cursor > m4_len(m4_Prefix)),
+ 1, [m4_define([m4_Cursor], m4_len(m4_Prefix))
+m4_Prefix])[]dnl
+m4_foreach_w([m4_Word], [$1],
+[m4_define([m4_Cursor], m4_eval(m4_Cursor + m4_len(m4_defn([m4_Word])) + 1))dnl
+dnl New line if too long, else insert a space unless it is the first
+dnl of the words.
+m4_if(m4_eval(m4_Cursor > m4_Width),
+ 1, [m4_define([m4_Cursor],
+ m4_eval(m4_len(m4_Prefix) + m4_len(m4_defn([m4_Word])) + 1))]
+m4_Prefix,
+ [m4_Separator])[]dnl
+m4_defn([m4_Word])[]dnl
+m4_define([m4_Separator], [ ])])dnl
+m4_popdef([m4_Separator])dnl
+m4_popdef([m4_Cursor])dnl
+m4_popdef([m4_Width])dnl
+m4_popdef([m4_Prefix1])dnl
+m4_popdef([m4_Prefix])dnl
+])
+
+
+# m4_text_box(MESSAGE, [FRAME-CHARACTER = `-'])
+# ---------------------------------------------
+m4_define([m4_text_box],
+[@%:@@%:@ m4_bpatsubst([$1], [.], m4_if([$2], [], [[-]], [[$2]])) @%:@@%:@
+@%:@@%:@ $1 @%:@@%:@
+@%:@@%:@ m4_bpatsubst([$1], [.], m4_if([$2], [], [[-]], [[$2]])) @%:@@%:@[]dnl
+])
+
+
+# m4_qlen(STRING)
+# ---------------
+# Expands to the length of STRING after autom4te converts all quadrigraphs.
+m4_define([m4_qlen],
+[m4_len(m4_bpatsubsts([[$1]], [@\(<:\|:>\|S|\|%:\)@], [P], [@&t@]))])
+
+
+# m4_qdelta(STRING)
+# -----------------
+# Expands to the net change in the length of STRING from autom4te converting the
+# quadrigraphs in STRING. This number is always negative or zero.
+m4_define([m4_qdelta],
+[m4_eval(m4_qlen([$1]) - m4_len([$1]))])
+
+
+
+## ----------------------- ##
+## 10. Number processing. ##
+## ----------------------- ##
+
+# m4_sign(A)
+# ----------
+#
+# The sign of the integer A.
+m4_define([m4_sign],
+[m4_bmatch([$1],
+ [^-], -1,
+ [^0+], 0,
+ 1)])
+
+# m4_cmp(A, B)
+# ------------
+#
+# Compare two integers.
+# A < B -> -1
+# A = B -> 0
+# A > B -> 1
+m4_define([m4_cmp],
+[m4_sign(m4_eval([$1 - $2]))])
+
+
+# m4_list_cmp(A, B)
+# -----------------
+#
+# Compare the two lists of integers A and B. For instance:
+# m4_list_cmp((1, 0), (1)) -> 0
+# m4_list_cmp((1, 0), (1, 0)) -> 0
+# m4_list_cmp((1, 2), (1, 0)) -> 1
+# m4_list_cmp((1, 2, 3), (1, 2)) -> 1
+# m4_list_cmp((1, 2, -3), (1, 2)) -> -1
+# m4_list_cmp((1, 0), (1, 2)) -> -1
+# m4_list_cmp((1), (1, 2)) -> -1
+m4_define([m4_list_cmp],
+[m4_if([$1$2], [()()], 0,
+ [$1], [()], [$0((0), [$2])],
+ [$2], [()], [$0([$1], (0))],
+ [m4_case(m4_cmp(m4_car$1, m4_car$2),
+ -1, -1,
+ 1, 1,
+ 0, [$0((m4_shift$1), (m4_shift$2))])])])
+
+
+
+## ------------------------ ##
+## 11. Version processing. ##
+## ------------------------ ##
+
+
+# m4_version_unletter(VERSION)
+# ----------------------------
+# Normalize beta version numbers with letters to numbers only for comparison.
+#
+# Nl -> (N+1).-1.(l#)
+#
+#i.e., 2.14a -> 2.15.-1.1, 2.14b -> 2.15.-1.2, etc.
+# This macro is absolutely not robust to active macro, it expects
+# reasonable version numbers and is valid up to `z', no double letters.
+m4_define([m4_version_unletter],
+[m4_translit(m4_bpatsubsts([$1],
+ [\([0-9]+\)\([abcdefghi]\)],
+ [m4_eval(\1 + 1).-1.\2],
+ [\([0-9]+\)\([jklmnopqrs]\)],
+ [m4_eval(\1 + 1).-1.1\2],
+ [\([0-9]+\)\([tuvwxyz]\)],
+ [m4_eval(\1 + 1).-1.2\2]),
+ [abcdefghijklmnopqrstuvwxyz],
+ [12345678901234567890123456])])
+
+
+# m4_version_compare(VERSION-1, VERSION-2)
+# ----------------------------------------
+# Compare the two version numbers and expand into
+# -1 if VERSION-1 < VERSION-2
+# 0 if =
+# 1 if >
+m4_define([m4_version_compare],
+[m4_list_cmp((m4_split(m4_version_unletter([$1]), [\.])),
+ (m4_split(m4_version_unletter([$2]), [\.])))])
+
+
+# m4_PACKAGE_NAME
+# m4_PACKAGE_TARNAME
+# m4_PACKAGE_VERSION
+# m4_PACKAGE_STRING
+# m4_PACKAGE_BUGREPORT
+# --------------------
+#m4_include([m4sugar/version.m4]) # This is needed for Autoconf, but not Bison.
+
+
+# m4_version_prereq(VERSION, [IF-OK], [IF-NOT = FAIL])
+# ----------------------------------------------------
+# Check this Autoconf version against VERSION.
+m4_define([m4_version_prereq],
+[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [$1]), -1,
+ [m4_default([$3],
+ [m4_fatal([Autoconf version $1 or higher is required],
+ 63)])],
+ [$2])[]dnl
+])
+
+
+
+## ------------------- ##
+## 12. File handling. ##
+## ------------------- ##
+
+
+# It is a real pity that M4 comes with no macros to bind a diversion
+# to a file. So we have to deal without, which makes us a lot more
+# fragile that we should.
+
+
+# m4_file_append(FILE-NAME, CONTENT)
+# ----------------------------------
+m4_define([m4_file_append],
+[m4_syscmd([cat >>$1 <<_m4eof
+$2
+_m4eof
+])
+m4_if(m4_sysval, [0], [],
+ [m4_fatal([$0: cannot write: $1])])])
+
+
+
+## ------------------------ ##
+## 13. Setting M4sugar up. ##
+## ------------------------ ##
+
+
+# m4_init
+# -------
+m4_define([m4_init],
+[# All the M4sugar macros start with `m4_', except `dnl' kept as is
+# for sake of simplicity.
+m4_pattern_forbid([^_?m4_])
+m4_pattern_forbid([^dnl$])
+
+# Check the divert push/pop perfect balance.
+m4_wrap([m4_ifdef([_m4_divert_diversion],
+ [m4_fatal([$0: unbalanced m4_divert_push:]_m4_divert_n_stack)])[]])
+
+m4_divert_push([KILL])
+m4_wrap([m4_divert_pop([KILL])[]])
+])
diff --git a/data/yacc.c b/data/yacc.c
new file mode 100644
index 0000000..1e8fa56
--- /dev/null
+++ b/data/yacc.c
@@ -0,0 +1,1529 @@
+m4_divert(-1) -*- C -*-
+
+# Yacc compatible skeleton for Bison
+
+# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+m4_include(b4_pkgdatadir/[c.m4])
+
+## ---------------- ##
+## Default values. ##
+## ---------------- ##
+
+# Stack parameters.
+m4_define_default([b4_stack_depth_max], [10000])
+m4_define_default([b4_stack_depth_init], [200])
+
+
+## ------------------------ ##
+## Pure/impure interfaces. ##
+## ------------------------ ##
+
+
+# b4_yacc_pure_if(IF-TRUE, IF-FALSE)
+# ----------------------------------
+# Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.
+m4_define([b4_yacc_pure_if],
+[b4_pure_if([m4_ifset([b4_parse_param],
+ [$1], [$2])],
+ [$2])])
+
+
+# b4_yyerror_args
+# ---------------
+# Arguments passed to yyerror: user args plus yylloc.
+m4_define([b4_yyerror_args],
+[b4_yacc_pure_if([b4_locations_if([&yylloc, ])])dnl
+m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
+
+
+# b4_lex_param
+# ------------
+# Accumulate in b4_lex_param all the yylex arguments.
+# b4_lex_param arrives quoted twice, but we want to keep only one level.
+m4_define([b4_lex_param],
+m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
+b4_locations_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
+m4_ifdef([b4_lex_param], b4_lex_param)))
+
+
+
+## ------------ ##
+## Data Types. ##
+## ------------ ##
+
+# b4_int_type(MIN, MAX)
+# ---------------------
+# Return the smallest int type able to handle numbers ranging from
+# MIN to MAX (included). Overwrite the version from c.m4, which
+# uses only C89 types, so that the user can override the shorter
+# types, and so that pre-C89 compilers are handled correctly.
+m4_define([b4_int_type],
+[m4_if(b4_ints_in($@, [0], [255]), [1], [yytype_uint8],
+ b4_ints_in($@, [-128], [127]), [1], [yytype_int8],
+
+ b4_ints_in($@, [0], [65535]), [1], [yytype_uint16],
+ b4_ints_in($@, [-32768], [32767]), [1], [yytype_int16],
+
+ m4_eval([0 <= $1]), [1], [unsigned int],
+
+ [int])])
+
+
+## ----------------- ##
+## Semantic Values. ##
+## ----------------- ##
+
+
+# b4_lhs_value([TYPE])
+# --------------------
+# Expansion of $<TYPE>$.
+m4_define([b4_lhs_value],
+[(yyval[]m4_ifval([$1], [.$1]))])
+
+
+# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
+# --------------------------------------
+# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
+# symbols on RHS.
+m4_define([b4_rhs_value],
+[(yyvsp@{($2) - ($1)@}m4_ifval([$3], [.$3]))])
+
+
+
+## ----------- ##
+## Locations. ##
+## ----------- ##
+
+# b4_lhs_location()
+# -----------------
+# Expansion of @$.
+m4_define([b4_lhs_location],
+[(yyloc)])
+
+
+# b4_rhs_location(RULE-LENGTH, NUM)
+# ---------------------------------
+# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
+# on RHS.
+m4_define([b4_rhs_location],
+[(yylsp@{($2) - ($1)@})])
+
+
+
+## --------------------------------------------------------- ##
+## Defining symbol actions, e.g., printers and destructors. ##
+## --------------------------------------------------------- ##
+
+# We do want M4 expansion after # for CPP macros.
+m4_changecom()
+m4_divert(0)dnl
+@output @output_parser_name@
+b4_copyright([Skeleton implementation for Bison's Yacc-like parsers in C],dnl '
+ [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])[
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+ simplifying the original so-called "semantic" parser. */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+ infringing on user name space. This should be done even for local
+ variables, as they might otherwise be expanded by user macros.
+ There are some unavoidable exceptions within include files to
+ define necessary library symbols; they are noted "INFRINGES ON
+ USER NAME SPACE" below. */
+
+]b4_identification
+m4_if(b4_prefix, [yy], [],
+[/* Substitute the variable and function names. */
+#define yyparse b4_prefix[]parse
+#define yylex b4_prefix[]lex
+#define yyerror b4_prefix[]error
+#define yylval b4_prefix[]lval
+#define yychar b4_prefix[]char
+#define yydebug b4_prefix[]debug
+#define yynerrs b4_prefix[]nerrs
+b4_locations_if([#define yylloc b4_prefix[]lloc])])[
+
+]b4_token_enums_defines(b4_tokens)[
+
+/* Copy the first part of user declarations. */
+]b4_pre_prologue[
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG ]b4_debug_flag[
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE ]b4_token_table[
+#endif
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+]m4_ifdef([b4_stype],
+[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE])
+b4_stype
+/* Line __line__ of yacc.c. */
+b4_syncline([@oline@], [@ofile@])
+ YYSTYPE;],
+[typedef int YYSTYPE;])[
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+]b4_locations_if([#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+])[
+
+/* Copy the second part of user declarations. */
+]b4_post_prologue
+
+/* Line __line__ of yacc.c. */
+b4_syncline([@oline@], [@ofile@])[
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif ]b4_c_modern[
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && ]b4_c_modern[
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(n) (n)
+#else
+]b4_c_function_def([YYID], [static int], [[int i], [i]])[
+{
+ return i;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined _STDLIB_H && ]b4_c_modern[
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# endif
+# endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+ /* Pacify GCC's `empty if-body' warning. */
+# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+# ifndef YYSTACK_ALLOC_MAXIMUM
+ /* The OS might guarantee only one guard page at the bottom of the stack,
+ and a page size can be as small as 4096 bytes. So we cannot safely
+ invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
+ to allow for a few compiler-allocated temporary stack slots. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+# endif
+# else
+# define YYSTACK_ALLOC YYMALLOC
+# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined _STDLIB_H \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# if ! defined malloc && ! defined _STDLIB_H && ]b4_c_modern[
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# ifndef YYFREE
+# define YYFREE free
+# if ! defined free && ! defined _STDLIB_H && ]b4_c_modern[
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+ && (! defined __cplusplus \
+ || (]b4_locations_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+ && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member. */
+union yyalloc
+{
+ yytype_int16 yyss;
+ YYSTYPE yyvs;
+ ]b4_locations_if([ YYLTYPE yyls;
+])dnl
+[};
+
+/* The size of the maximum gap between one aligned stack and the next. */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+ N elements. */
+]b4_locations_if(
+[# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ + 2 * YYSTACK_GAP_MAXIMUM)],
+[# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
+ + YYSTACK_GAP_MAXIMUM)])[
+
+/* Copy COUNT objects from FROM to TO. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(To, From, Count) \
+ __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# else
+# define YYCOPY(To, From, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (To)[yyi] = (From)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+
+/* Relocate STACK from its old location to the new one. The
+ local variables YYSIZE and YYSTACKSIZE give the old and new number of
+ elements in the stack, and YYPTR gives the new location of the
+ stack. Advance YYPTR to a properly aligned location for the next
+ stack. */
+# define YYSTACK_RELOCATE(Stack) \
+ do \
+ { \
+ YYSIZE_T yynewbytes; \
+ YYCOPY (&yyptr->Stack, Stack, yysize); \
+ Stack = &yyptr->Stack; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+ yyptr += yynewbytes / sizeof (*yyptr); \
+ } \
+ while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL ]b4_final_state_number[
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST ]b4_last[
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS ]b4_tokens_number[
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS ]b4_nterms_number[
+/* YYNRULES -- Number of rules. */
+#define YYNRULES ]b4_rules_number[
+/* YYNRULES -- Number of states. */
+#define YYNSTATES ]b4_states_number[
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+#define YYUNDEFTOK ]b4_undef_token_number[
+#define YYMAXUTOK ]b4_user_token_number_max[
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
+{
+ ]b4_translate[
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
+{
+ ]b4_prhs[
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
+{
+ ]b4_rhs[
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const ]b4_int_type_for([b4_rline])[ yyrline[] =
+{
+ ]b4_rline[
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ ]b4_tname[
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+ token YYLEX-NUM. */
+static const ]b4_int_type_for([b4_toknum])[ yytoknum[] =
+{
+ ]b4_toknum[
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const ]b4_int_type_for([b4_r1])[ yyr1[] =
+{
+ ]b4_r1[
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const ]b4_int_type_for([b4_r2])[ yyr2[] =
+{
+ ]b4_r2[
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+ STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+ means the default is an error. */
+static const ]b4_int_type_for([b4_defact])[ yydefact[] =
+{
+ ]b4_defact[
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
+{
+ ]b4_defgoto[
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF ]b4_pact_ninf[
+static const ]b4_int_type_for([b4_pact])[ yypact[] =
+{
+ ]b4_pact[
+};
+
+/* YYPGOTO[NTERM-NUM]. */
+static const ]b4_int_type_for([b4_pgoto])[ yypgoto[] =
+{
+ ]b4_pgoto[
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says.
+ If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF ]b4_table_ninf[
+static const ]b4_int_type_for([b4_table])[ yytable[] =
+{
+ ]b4_table[
+};
+
+static const ]b4_int_type_for([b4_check])[ yycheck[] =
+{
+ ]b4_check[
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const ]b4_int_type_for([b4_stos])[ yystos[] =
+{
+ ]b4_stos[
+};
+
+#define yyerrok (yyerrstatus = 0)
+#define yyclearin (yychar = YYEMPTY)
+#define YYEMPTY (-2)
+#define YYEOF 0
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror. This remains here temporarily
+ to ease the transition to the new meaning of YYERROR, for GCC.
+ Once GCC version 2 has supplanted version 1, this can go. */
+
+#define YYFAIL goto yyerrlab
+
+#define YYRECOVERING() (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value) \
+do \
+ if (yychar == YYEMPTY && yylen == 1) \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ yytoken = YYTRANSLATE (yychar); \
+ YYPOPSTACK (1); \
+ goto yybackup; \
+ } \
+ else \
+ { \
+ yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
+ YYERROR; \
+ } \
+while (YYID (0))
+
+
+#define YYTERROR 1
+#define YYERRCODE 256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
+
+#ifndef YY_LOCATION_PRINT
+# if YYLTYPE_IS_TRIVIAL
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments. */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (]b4_pure_if([&yylval[]b4_locations_if([, &yylloc]), ])[YYLEX_PARAM)
+#else
+# define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
+#endif
+
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value]b4_locations_if([, Location])[]b4_user_args[); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+]b4_yy_symbol_print_generate([b4_c_function_def])[
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
+
+]b4_c_function_def([yy_stack_print], [static void],
+ [[yytype_int16 *bottom], [bottom]],
+ [[yytype_int16 *top], [top]])[
+{
+ YYFPRINTF (stderr, "Stack now");
+ for (; bottom <= top; ++bottom)
+ YYFPRINTF (stderr, " %d", *bottom);
+ YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
+
+]b4_c_function_def([yy_reduce_print], [static void],
+ [[YYSTYPE *yyvsp], [yyvsp]],
+ b4_locations_if([[[YYLTYPE *yylsp], [yylsp]],
+ ])[[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,
+ ])b4_parse_param)[
+{
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ fprintf (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &]b4_rhs_value(yynrhs, yyi + 1)[
+ ]b4_locations_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
+ b4_user_args[);
+ fprintf (stderr, "\n");
+ }
+}
+
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug) \
+ yy_reduce_print (yyvsp, ]b4_locations_if([yylsp, ])[Rule]b4_user_args[); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH ]b4_stack_depth_init[
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
+
+ Do not make this value too large; the results are undefined if
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+ evaluated with infinite-precision integer arithmetic. */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH ]b4_stack_depth_max[
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+# if defined __GLIBC__ && defined _STRING_H
+# define yystrlen strlen
+# else
+/* Return the length of YYSTR. */
+]b4_c_function_def([yystrlen], [static YYSIZE_T],
+ [[const char *yystr], [yystr]])[
+{
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
+ continue;
+ return yylen;
+}
+# endif
+# endif
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+]b4_c_function_def([yystpcpy], [static char *],
+ [[char *yydest], [yydest]], [[const char *yysrc], [yysrc]])[
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+ YYCHAR while in state YYSTATE. Return the number of bytes copied,
+ including the terminating null byte. If YYRESULT is null, do not
+ copy anything; just return the number of bytes that would be
+ copied. As a special case, return 0 if an ordinary "syntax error"
+ message will do. Return YYSIZE_MAXIMUM if overflow occurs during
+ size calculation. */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+ int yyn = yypact[yystate];
+
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 0;
+ else
+ {
+ int yytype = YYTRANSLATE (yychar);
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ int yysize_overflow = 0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+
+# if 0
+ /* This is so xgettext sees the translatable formats that are
+ constructed on the fly. */
+ YY_("syntax error, unexpected %s");
+ YY_("syntax error, unexpected %s, expecting %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ static char const yyexpecting[] = ", expecting %s";
+ static char const yyor[] = " or %s";
+ char yyformat[sizeof yyunexpected
+ + sizeof yyexpecting - 1
+ + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+ * (sizeof yyor - 1))];
+ char const *yyprefix = yyexpecting;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytname[yytype];
+ yyfmt = yystpcpy (yyformat, yyunexpected);
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ yyformat[sizeof yyunexpected - 1] = '\0';
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+ yyfmt = yystpcpy (yyfmt, yyprefix);
+ yyprefix = yyor;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + yystrlen (yyf);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+
+ if (yysize_overflow)
+ return YYSIZE_MAXIMUM;
+
+ if (yyresult)
+ {
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ char *yyp = yyresult;
+ int yyi = 0;
+ while ((*yyp = *yyf) != '\0')
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
+ }
+ return yysize;
+ }
+}
+#endif /* YYERROR_VERBOSE */
+
+
+]b4_yydestruct_generate([b4_c_function_def])[
+
+
+/* Prevent warnings from -Wmissing-prototypes. */
+
+#ifdef YYPARSE_PARAM
+]b4_c_function_decl([yyparse], [int],
+ [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])[
+#else /* ! YYPARSE_PARAM */
+]b4_c_function_decl([yyparse], [int], b4_parse_param)[
+#endif /* ! YYPARSE_PARAM */
+
+
+]m4_divert_push([KILL])# ======================== M4 code.
+# b4_declare_parser_variables
+# ---------------------------
+# Declare the variables that are global, or local to YYPARSE if
+# pure-parser.
+m4_define([b4_declare_parser_variables],
+[/* The look-ahead symbol. */
+int yychar;
+
+/* The semantic value of the look-ahead symbol. */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far. */
+int yynerrs;b4_locations_if([
+/* Location data for the look-ahead symbol. */
+YYLTYPE yylloc;])
+])
+m4_divert_pop([KILL])dnl# ====================== End of M4 code.
+
+b4_pure_if([],
+ [b4_declare_parser_variables])
+
+
+/*----------.
+| yyparse. |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+b4_c_function_def([yyparse], [int], [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])
+#else /* ! YYPARSE_PARAM */
+b4_c_function_def([yyparse], [int], b4_parse_param)
+#endif
+{[
+ ]b4_pure_if([b4_declare_parser_variables])[
+ int yystate;
+ int yyn;
+ int yyresult;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+ /* Look-ahead token as an internal (translated) token number. */
+ int yytoken = 0;
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+ /* Three stacks and their tools:
+ `yyss': related to states,
+ `yyvs': related to semantic values,
+ `yyls': related to locations.
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss = yyssa;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs = yyvsa;
+ YYSTYPE *yyvsp;
+
+]b4_locations_if(
+[[ /* The location stack. */
+ YYLTYPE yylsa[YYINITDEPTH];
+ YYLTYPE *yyls = yylsa;
+ YYLTYPE *yylsp;
+ /* The locations where the error started and ended. */
+ YYLTYPE yyerror_range[2];]])[
+
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)]b4_locations_if([, yylsp -= (N)])[)
+
+ YYSIZE_T yystacksize = YYINITDEPTH;
+
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+]b4_locations_if([ YYLTYPE yyloc;])[
+
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yystate = 0;
+ yyerrstatus = 0;
+ yynerrs = 0;
+ yychar = YYEMPTY; /* Cause a token to be read. */
+
+ /* Initialize stack pointers.
+ Waste one element of value and location stack
+ so that they stay on the same level as the state stack.
+ The wasted elements are never initialized. */
+
+ yyssp = yyss;
+ yyvsp = yyvs;
+]b4_locations_if([[ yylsp = yyls;
+#if YYLTYPE_IS_TRIVIAL
+ /* Initialize the default location before parsing starts. */
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = 0;
+#endif
+]])
+m4_ifdef([b4_initial_action], [
+m4_pushdef([b4_at_dollar], [m4_define([b4_at_dollar_used])yylloc])dnl
+m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl
+ /* User initialization code. */
+b4_initial_action
+m4_popdef([b4_dollar_dollar])dnl
+m4_popdef([b4_at_dollar])dnl
+/* Line __line__ of yacc.c. */
+b4_syncline([@oline@], [@ofile@])
+])dnl
+m4_ifdef([b4_dollar_dollar_used],[[ yyvsp[0] = yylval;
+]])dnl
+m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc;
+]])dnl
+[ goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate. |
+`------------------------------------------------------------*/
+ yynewstate:
+ /* In all cases, when you get here, the value and location stacks
+ have just been pushed. So pushing a state here evens the stacks. */
+ yyssp++;
+
+ yysetstate:
+ *yyssp = yystate;
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ {
+ /* Get the current used size of the three stacks, in elements. */
+ YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+ {
+ /* Give user a chance to reallocate the stack. Use copies of
+ these so that the &'s don't force the real ones into
+ memory. */
+ YYSTYPE *yyvs1 = yyvs;
+ yytype_int16 *yyss1 = yyss;
+]b4_locations_if([ YYLTYPE *yyls1 = yyls;])[
+
+ /* Each stack pointer address is followed by the size of the
+ data in use in that stack, in bytes. This used to be a
+ conditional around just the two extra args, but that might
+ be undefined if yyoverflow is a macro. */
+ yyoverflow (YY_("memory exhausted"),
+ &yyss1, yysize * sizeof (*yyssp),
+ &yyvs1, yysize * sizeof (*yyvsp),
+]b4_locations_if([ &yyls1, yysize * sizeof (*yylsp),])[
+ &yystacksize);
+]b4_locations_if([ yyls = yyls1;])[
+ yyss = yyss1;
+ yyvs = yyvs1;
+ }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+ goto yyexhaustedlab;
+# else
+ /* Extend the stack our own way. */
+ if (YYMAXDEPTH <= yystacksize)
+ goto yyexhaustedlab;
+ yystacksize *= 2;
+ if (YYMAXDEPTH < yystacksize)
+ yystacksize = YYMAXDEPTH;
+
+ {
+ yytype_int16 *yyss1 = yyss;
+ union yyalloc *yyptr =
+ (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+ if (! yyptr)
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss);
+ YYSTACK_RELOCATE (yyvs);
+]b4_locations_if([ YYSTACK_RELOCATE (yyls);])[
+# undef YYSTACK_RELOCATE
+ if (yyss1 != yyssa)
+ YYSTACK_FREE (yyss1);
+ }
+# endif
+#endif /* no yyoverflow */
+
+ yyssp = yyss + yysize - 1;
+ yyvsp = yyvs + yysize - 1;
+]b4_locations_if([ yylsp = yyls + yysize - 1;])[
+
+ YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+ (unsigned long int) yystacksize));
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ YYABORT;
+ }
+
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+ goto yybackup;
+
+/*-----------.
+| yybackup. |
+`-----------*/
+yybackup:
+
+ /* Do appropriate processing given the current state. Read a
+ look-ahead token if we need one and don't already have one. */
+
+ /* First try to decide what to do without reference to look-ahead token. */
+ yyn = yypact[yystate];
+ if (yyn == YYPACT_NINF)
+ goto yydefault;
+
+ /* Not known => get a look-ahead token if don't already have one. */
+
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ }
+
+ if (yychar <= YYEOF)
+ {
+ yychar = yytoken = YYEOF;
+ YYDPRINTF ((stderr, "Now at end of input.\n"));
+ }
+ else
+ {
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+ goto yydefault;
+ yyn = yytable[yyn];
+ if (yyn <= 0)
+ {
+ if (yyn == 0 || yyn == YYTABLE_NINF)
+ goto yyerrlab;
+ yyn = -yyn;
+ goto yyreduce;
+ }
+
+ if (yyn == YYFINAL)
+ YYACCEPT;
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus)
+ yyerrstatus--;
+
+ /* Shift the look-ahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the shifted token unless it is eof. */
+ if (yychar != YYEOF)
+ yychar = YYEMPTY;
+
+ yystate = yyn;
+ *++yyvsp = yylval;
+]b4_locations_if([ *++yylsp = yylloc;])[
+ goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state. |
+`-----------------------------------------------------------*/
+yydefault:
+ yyn = yydefact[yystate];
+ if (yyn == 0)
+ goto yyerrlab;
+ goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction. |
+`-----------------------------*/
+yyreduce:
+ /* yyn is the number of a rule to reduce with. */
+ yylen = yyr2[yyn];
+
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. Assigning to YYVAL
+ unconditionally makes the parser a bit smaller, and it avoids a
+ GCC warning that YYVAL may be used uninitialized. */
+ yyval = yyvsp[1-yylen];
+
+]b4_locations_if(
+[[ /* Default location. */
+ YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);]])[
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ ]b4_actions
+/* Line __line__ of yacc.c. */
+b4_syncline([@oline@], [@ofile@])[
+ default: break;
+ }
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+
+ *++yyvsp = yyval;
+]b4_locations_if([ *++yylsp = yyloc;])[
+
+ /* Now `shift' the result of the reduction. Determine what state
+ that goes to, based on the state we popped back to and the rule
+ number reduced by. */
+
+ yyn = yyr1[yyn];
+
+ yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+ if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+ yystate = yytable[yystate];
+ else
+ yystate = yydefgoto[yyn - YYNTOKENS];
+
+ goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus)
+ {
+ ++yynerrs;
+#if ! YYERROR_VERBOSE
+ yyerror (]b4_yyerror_args[YY_("syntax error"));
+#else
+ {
+ YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+ if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+ {
+ YYSIZE_T yyalloc = 2 * yysize;
+ if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+ yyalloc = YYSTACK_ALLOC_MAXIMUM;
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+ if (yymsg)
+ yymsg_alloc = yyalloc;
+ else
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ }
+
+ if (0 < yysize && yysize <= yymsg_alloc)
+ {
+ (void) yysyntax_error (yymsg, yystate, yychar);
+ yyerror (]b4_yyerror_args[yymsg);
+ }
+ else
+ {
+ yyerror (]b4_yyerror_args[YY_("syntax error"));
+ if (yysize != 0)
+ goto yyexhaustedlab;
+ }
+ }
+#endif
+ }
+
+]b4_locations_if([[ yyerror_range[0] = yylloc;]])[
+
+ if (yyerrstatus == 3)
+ {
+ /* If just tried and failed to reuse look-ahead token after an
+ error, discard it. */
+
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
+ yychar = YYEMPTY;
+ }
+ }
+
+ /* Else will try to reuse look-ahead token after shifting the error
+ token. */
+ goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
+
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
+ goto yyerrorlab;
+
+]b4_locations_if([[ yyerror_range[0] = yylsp[1-yylen];
+]])[ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+ yystate = *yyssp;
+ goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
+ yyerrstatus = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact[yystate];
+ if (yyn != YYPACT_NINF)
+ {
+ yyn += YYTERROR;
+ if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+ {
+ yyn = yytable[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yyssp == yyss)
+ YYABORT;
+
+]b4_locations_if([[ yyerror_range[0] = *yylsp;]])[
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
+ YYPOPSTACK (1);
+ yystate = *yyssp;
+ YY_STACK_PRINT (yyss, yyssp);
+ }
+
+ if (yyn == YYFINAL)
+ YYACCEPT;
+
+ *++yyvsp = yylval;
+]b4_locations_if([[
+ yyerror_range[1] = yylloc;
+ /* Using YYLLOC is tempting, but would change the location of
+ the look-ahead. YYLOC is available though. */
+ YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+ *++yylsp = yyloc;]])[
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+ yystate = yyn;
+ goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here. |
+`-------------------------------------*/
+yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here. |
+`-----------------------------------*/
+yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+#ifndef yyoverflow
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (]b4_yyerror_args[YY_("memory exhausted"));
+ yyresult = 2;
+ /* Fall through. */
+#endif
+
+yyreturn:
+ if (yychar != YYEOF && yychar != YYEMPTY)
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ YYPOPSTACK (yylen);
+ YY_STACK_PRINT (yyss, yyssp);
+ while (yyssp != yyss)
+ {
+ yydestruct ("Cleanup: popping",
+ yystos[*yyssp], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
+ YYPOPSTACK (1);
+ }
+#ifndef yyoverflow
+ if (yyss != yyssa)
+ YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+]}
+
+
+b4_epilogue
+b4_defines_if(
+[@output @output_header_name@
+b4_copyright([Skeleton interface for Bison's Yacc-like parsers in C],dnl '
+ [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])
+
+b4_token_enums_defines(b4_tokens)
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+m4_ifdef([b4_stype],
+[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE])
+b4_stype
+/* Line __line__ of yacc.c. */
+b4_syncline([@oline@], [@ofile@])
+ YYSTYPE;],
+[typedef int YYSTYPE;])
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+b4_pure_if([],
+[extern YYSTYPE b4_prefix[]lval;])
+
+b4_locations_if(
+[#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+b4_pure_if([],
+ [extern YYLTYPE b4_prefix[]lloc;])
+])dnl b4_locations_if
+])dnl b4_defines_if
diff --git a/djgpp/Makefile.maint b/djgpp/Makefile.maint
new file mode 100644
index 0000000..2566d15
--- /dev/null
+++ b/djgpp/Makefile.maint
@@ -0,0 +1,38 @@
+# DJGPP Maintainer's Makefile -*-Makefile-*-
+# Requires GNU sed
+
+## Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2, or (at your option)
+## any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software Foundation,
+## Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+top_srcdir = ..
+srcdir = .
+
+SHELL = /bin/sh
+
+all: README
+
+README: README.in $(top_srcdir)/configure
+ PACKAGE=`grep "^[ ]*PACKAGE=" $(top_srcdir)/configure | sed -e 's/^[ ]*PACKAGE=//' -e s/[\"\']//g`; \
+ VERSION=`grep "^[ ]*VERSION=" $(top_srcdir)/configure | sed -e 's/^[ ]*VERSION=//' -e s/[\"\']//g`; \
+ package_version=`echo "$${VERSION}" | sed 's/\.//g'`; \
+ tree_version=`echo "$${VERSION}" | sed 's/\.//2g'`; \
+ sed \
+ -e "s/@V@/$${PACKAGE}-$${VERSION}/g" \
+ -e "s/@VERSION@/$${VERSION}/g" \
+ -e "s/@PACKAGE_VERSION@/$$package_version/g" \
+ -e "s/@TREE_VERSION@/$$tree_version/g" \
+ $(srcdir)/README.in > t-$@
+ mv t-$@ $@
diff --git a/djgpp/README.in b/djgpp/README.in
new file mode 100644
index 0000000..ec3990b
--- /dev/null
+++ b/djgpp/README.in
@@ -0,0 +1,194 @@
+This is a port of GNU Bison @VERSION@ to MSDOS/DJGPP.
+
+Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+1.: DJGPP specific changes.
+ =======================
+
+ The DJGPP port of Bison offers LFN and SFN support depending on which
+ OS it is running. If LFN support is available or not is determinated at
+ run time. If LFN support is available (DOS session under Win9X, Win2K,
+ WinXP, etc.) the standard posix file name extensions will be used.
+ These are: y.tab.c, y.tab.c++, y.tab.h, y.output, etc. If only SFN
+ support is available (plain DOS), then the standard MSDOS short file
+ names will be used. These are: y_tab.c, y_tab.h, y.out, etc.
+ It should be noticed that this bison version needs the m4 program as
+ back end to generate the parser file (y.tab.c etc.) from the skeleton
+ files. This implies that m4 must always be installed to get bison
+ working. m4 will use a couple of m4 scripts that will be installed in
+ /dev/env/DJDIR/share/bison and shall not be removed.
+ It should also be noticed that the skeleton files bison.simple and
+ bison.hairy are no longer supported. This applies also to the environ-
+ ment variables BISON_HAIRY and BISON_SIMPLE. Those variables are *no*
+ longer honored at all.
+ The kind of skeleton file bison.hairy is no longer supported at all.
+ The skeleton file bison.simple is now called yacc.c and is an m4 script.
+ The other two skeleton files supported by this bison version are glr.c
+ and lalr1.cc. The first one is a generalized LR C parser based on
+ Bison's LALR(1) tables and the second one is a experimental C++ parser
+ class.
+ As has been told before, bison uses m4 to generate the parser file.
+ This is done by forking and using pipes for the IPC. MSDOS does not
+ support this functionality so this has been reproduced in the usual
+ way by redirecting stdin and stdout of bison and m4 to temporary files
+ and processing these files in sequence. All the changes to the sources
+ are documented in the djgpp/diffs file.
+
+ Please **read** the docs.
+
+
+2.: Installing the binary package.
+ ==============================
+
+2.1.: Copy the binary distribution into the top DJGPP installation directory,
+ just unzip it preserving the directory structure running *ONE* of the
+ following commands:
+ unzip32 bsn@PACKAGE_VERSION@b.zip or
+ djtarx bsn@PACKAGE_VERSION@b.zip or
+ pkunzip -d bsn@PACKAGE_VERSION@b.zip
+
+
+
+3.: Building the binaries from sources.
+ ===================================
+
+3.1.: Create a temporary directory and copy the source package into the
+ directory. If you download the source distribution from one of the
+ DJGPP sites, just unzip it preserving the directory structure
+ running *ONE* of the following commands:
+ unzip32 bsn@PACKAGE_VERSION@s.zip or
+ djtarx bsn@PACKAGE_VERSION@s.zip or
+ pkunzip -d bsn@PACKAGE_VERSION@s.zip
+ and proceed to the paragraph 3.3, below.
+
+3.2.: Source distributions downloaded from one of the GNU FTP sites need
+ some more work to unpack, if LFN support is not available. If LFN is
+ available then you can extract the source files from the archive with
+ any unzip program and proceed to the paragraph 3.3, below. Any file
+ name issue will be handled by the the DJGPP configuration files.
+ To unpack the source distribution on SFN systems, first, you MUST use
+ the `djunpack' batch file to unzip the package. That is because some
+ file names in the official distributions need to be changed to avoid
+ problems on the various platforms supported by DJGPP.
+ `djunpack' invokes the `djtar' program (that is part of the basic DJGPP
+ development kit) to rename these files on the fly given a file with
+ name mappings; the distribution includes a file `djgpp/fnchange.lst'
+ with the necessary mappings. So you need first to retrieve that batch
+ file, and then invoke it to unpack the distribution. Here's how:
+
+ djtar -x -p -o bison-@VERSION@/djgpp/djunpack.bat bison-@VERSION@.tar.gz > djunpack.bat
+ djunpack bison-@VERSION@.tar.gz
+
+ (The name of the distribution archive and the leading directory of the
+ path to `djunpack.bat' in the distribution will be different for
+ versions of Bison other than @VERSION@.)
+
+ If the argument to `djunpack.bat' include leading directories, it MUST
+ be given with the DOS-style backslashes; Unix-style forward slashes
+ will NOT work.
+
+ If the distribution comes as a .tar.bz2 archive, and your version of
+ `djtar' doesn't support bzip2 decompression, you need to unpack it as
+ follows:
+
+ bnzip2 bison-@VERSION@.tar.bz2
+ djtar -x -p -o bison-@VERSION@/djgpp/djunpack.bat bison-@VERSION@.tar > djunpack.bat
+ djunpack bison-@VERSION@.tar
+
+3.3.: To build the binaries you will need the following binary packages:
+ djdev203.zip (or a later but NOT a prior version)
+ bsh204b.zip (or a later but NOT a prior version)
+ gcc410b.zip, gpp410b.zip, bnu2161b.zip, mak3791b.zip,
+ fil40b.zip, shl20jb.zip, txt20b.zip,
+ txi48b.zip, grep24b.zip, sed415b.zip,
+ m4-144b.zip.
+
+ If you want to run the check you will need also:
+ dif287b.zip
+
+ All this packages can be found in the v2gnu directory of any
+ ftp.delorie.com mirror.
+ You will need bsh204b.zip or later and *NOT* a prior version or
+ the build will fail. The same applies to djdev203.zip. Please note
+ that Bison requires m4-144b.zip or later to work properly. All the
+ other packages are the ones I have used to build the binaries
+ from this source. Previuos versions of this packages may do the
+ job as well but I have not tested this.
+
+3.4.: If for some reason you want to reconfigure the package cd into the top
+ srcdir (bison-@TREE_VERSION@) and run the following commands:
+ del djgpp\config.cache
+ make clean
+ djgpp\config
+
+ Please note that you *MUST* delete the config.cache file in the djgpp
+ subdir or you will not really reconfigure the sources because the
+ configuration informations will be read from the cache file instead
+ of being newly computed.
+ To build the programs in a directory other than where the sources are,
+ you must add the parameter that specifies the source directory,
+ e.g:
+ x:\src\gnu\bison-@TREE_VERSION@\djgpp\config x:/src/gnu/bison-@TREE_VERSION@
+
+ Lets assume you want to build the binaries in a directory placed on a
+ different drive (z:\build in this case) from where the sources are,
+ then you will run the following commands:
+ z:
+ md \build
+ cd \build
+ x:\src\gnu\bison-@TREE_VERSION@\djgpp\config x:/src/gnu/bison-@TREE_VERSION@
+
+ The order of the options and the srcdir option does not matter. You
+ *MUST* use forward slashes to specify the source directory.
+
+ The batch file will set same environment variables, make MSDOS specific
+ modifications to the Makefile.in's and supply all other needed options
+ to the configure script.
+
+3.5.: To compile the package run from the top srcdir the command:
+ make
+
+3.6.: Now you can run the tests if you like. From the top srcdir run the
+ command:
+ make check
+
+ No test should fail but the tests #131 (Doxygen Public Documentation)
+ and #132 (Doxygen Private Documentation) will be skipped. Please note
+ that the testsuite only works with LFN available. On plain DOS, most
+ of the tests will fail due to invalid DOS names.
+
+3.7.: To install the binaries, header, library, catalogs, and info docs
+ run the following command from the top srcdir:
+ make install
+
+ This will install the products into your DJGPP installation tree given
+ by the default prefix "/dev/env/DJDIR". If you prefer to install them
+ into some other directory you will have to set prefix to the appropiate
+ value:
+ make install prefix=z:/some/other/place
+
+
+
+ Send GNU bison specific bug reports to <bug-bison@gnu.org>.
+ Send suggestions and bug reports concerning the DJGPP port to
+ comp.os.msdos.djgpp or <djgpp@delorie.com>.
+
+
+Enjoy.
+
+ Guerrero, Juan Manuel <juan.guerrero@gmx.de>
diff --git a/djgpp/config.bat b/djgpp/config.bat
new file mode 100644
index 0000000..1fb6e61
--- /dev/null
+++ b/djgpp/config.bat
@@ -0,0 +1,480 @@
+@echo off
+Rem Configure Bison for DJGPP.
+
+Rem WARNING WARNING WARNING: This file needs to have DOS CRLF end-of-line
+Rem format, or else stock DOS/Windows shells will refuse to run it.
+
+Rem Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+Rem This program is free software; you can redistribute it and/or modify
+Rem it under the terms of the GNU General Public License as published by
+Rem the Free Software Foundation; either version 2, or (at your option)
+Rem any later version.
+
+Rem This program is distributed in the hope that it will be useful,
+Rem but WITHOUT ANY WARRANTY; without even the implied warranty of
+Rem MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+Rem GNU General Public License for more details.
+
+Rem You should have received a copy of the GNU General Public License
+Rem along with this program; if not, write to the Free Software Foundation,
+Rem Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+echo Configuring Bison for DJGPP v2.x...
+
+Rem The SmallEnv tests protect against fixed and too small size
+Rem of the environment in stock DOS shell.
+
+Rem Find out if NLS is wanted or not,
+Rem if dependency-tracking is wanted or not,
+Rem if caching is wanted or not
+Rem and where the sources are.
+Rem We always default to NLS support,
+Rem no dependency tracking
+Rem and to in place configuration.
+set ARGS=
+set NLS=enabled
+if not "%NLS%" == "enabled" goto SmallEnv
+set CACHING=enabled
+if not "%CACHING%" == "enabled" goto SmallEnv
+set DEPENDENCY_TRACKING=disabled
+if not "%DEPENDENCY_TRACKING%" == "disabled" goto SmallEnv
+set LIBICONV_PREFIX=disabled
+if not "%LIBICONV_PREFIX%" == "disabled" goto SmallEnv
+set LIBINTL_PREFIX=disabled
+if not "%LIBINTL_PREFIX%" == "disabled" goto SmallEnv
+set HTML=enabled
+if not "%HTML%" == "enabled" goto SmallEnv
+set XSRC=.
+if not "%XSRC%" == "." goto SmallEnv
+
+Rem Loop over all arguments.
+Rem Special arguments are: NLS, XSRC, CACHE, STATIC_LIBS, LIBICONV_PREFIX, LIBINTL_PREFIX and DEPS.
+Rem All other arguments are stored into ARGS.
+:ArgLoop
+if "%1" == "nls" goto NextArgument
+if "%1" == "NLS" goto NextArgument
+if "%1" == "no-nls" goto NoNLS
+if "%1" == "no-NLS" goto NoNLS
+if "%1" == "NO-NLS" goto NoNLS
+goto CachingOption
+:NoNLS
+if "%1" == "no-nls" set NLS=disabled
+if "%1" == "no-NLS" set NLS=disabled
+if "%1" == "NO-NLS" set NLS=disabled
+if not "%NLS%" == "disabled" goto SmallEnv
+goto NextArgument
+:CachingOption
+if "%1" == "cache" goto NextArgument
+if "%1" == "CACHE" goto NextArgument
+if "%1" == "no-cache" goto NoCaching
+if "%1" == "no-CACHE" goto NoCaching
+if "%1" == "NO-CACHE" goto NoCaching
+goto DependencyOption
+:NoCaching
+if "%1" == "no-cache" set CACHING=disabled
+if "%1" == "no-CACHE" set CACHING=disabled
+if "%1" == "NO-CACHE" set CACHING=disabled
+if not "%CACHING%" == "disabled" goto SmallEnv
+goto NextArgument
+:DependencyOption
+if "%1" == "no-dep" goto NextArgument
+if "%1" == "no-DEP" goto NextArgument
+if "%1" == "NO-DEP" goto NextArgument
+if "%1" == "dep" goto DependecyTraking
+if "%1" == "DEP" goto DependecyTraking
+goto LibiconvPrefixOption
+:DependecyTraking
+if "%1" == "dep" set DEPENDENCY_TRACKING=enabled
+if "%1" == "DEP" set DEPENDENCY_TRACKING=enabled
+if not "%DEPENDENCY_TRACKING%" == "enabled" goto SmallEnv
+goto NextArgument
+:LibiconvPrefixOption
+if "%1" == "no-libiconvprefix" goto NextArgument
+if "%1" == "no-LIBICONVPREFIX" goto NextArgument
+if "%1" == "NO-LIBICONVPREFIX" goto NextArgument
+if "%1" == "libiconvprefix" goto WithLibiconvPrefix
+if "%1" == "LIBICONVPREFIX" goto WithLibiconvPrefix
+goto LibintlPrefixOption
+:WithLibiconvPrefix
+if "%1" == "libiconvprefix" set LIBICONV_PREFIX=enabled
+if "%1" == "LIBICONVPREFIX" set LIBICONV_PREFIX=enabled
+if not "%LIBICONV_PREFIX%" == "enabled" goto SmallEnv
+goto NextArgument
+:LibintlPrefixOption
+if "%1" == "no-libiconvprefix" goto NextArgument
+if "%1" == "no-LIBICONVPREFIX" goto NextArgument
+if "%1" == "NO-LIBICONVPREFIX" goto NextArgument
+if "%1" == "libintlprefix" goto _WithLibintlPrefix
+if "%1" == "LIBINTLPREFIX" goto _WithLibintlPrefix
+goto HTMLOption
+:_WithLibintlPrefix
+if "%1" == "libintlprefix" set LIBINTL_PREFIX=enabled
+if "%1" == "LIBINTLPREFIX" set LIBINTL_PREFIX=enabled
+if not "%LIBINTL_PREFIX%" == "enabled" goto SmallEnv
+:HTMLOption
+if "%1" == "withhtml" goto NextArgument
+if "%1" == "withHTML" goto NextArgument
+if "%1" == "WITHHTML" goto NextArgument
+if "%1" == "withouthtml" goto _WithoutHTML
+if "%1" == "withoutHTML" goto _WithoutHTML
+if "%1" == "WITHOUTHTML" goto _WithoutHTML
+goto SrcDirOption
+:_WithoutHTML
+if "%1" == "withouthtml" set HTML=disabled
+if "%1" == "withoutHTML" set HTML=disabled
+if "%1" == "WITHOUTHTML" set HTML=disabled
+if not "%HTML%" == "disabled" goto SmallEnv
+goto NextArgument
+:SrcDirOption
+echo %1 | grep -q "/"
+if errorlevel 1 goto CollectArgument
+set XSRC=%1
+if not "%XSRC%" == "%1" goto SmallEnv
+goto NextArgument
+:CollectArgument
+set _ARGS=%ARGS% %1
+if not "%_ARGS%" == "%ARGS% %1" if not "%_ARGS%" == "%ARGS%%1" goto SmallEnv
+echo %_ARGS% | grep -q "[^ ]"
+if not errorlevel 0 set ARGS=%_ARGS%
+set _ARGS=
+:NextArgument
+shift
+if not "%1" == "" goto ArgLoop
+
+Rem Create an arguments file for the configure script.
+echo --srcdir=%XSRC% > arguments
+if "%CACHING%" == "enabled" echo --cache-file=%XSRC%/djgpp/config.cache >> arguments
+if "%DEPENDENCY_TRACKING%" == "enabled" echo --enable-dependency-tracking >> arguments
+if "%DEPENDENCY_TRACKING%" == "disabled" echo --disable-dependency-tracking >> arguments
+if "%LIBICONV_PREFIX%" == "enabled" echo --with-libiconv-prefix >> arguments
+if "%LIBICONV_PREFIX%" == "disabled" echo --without-libiconv-prefix >> arguments
+if "%LIBINTL_PREFIX%" == "enabled" echo --with-libintl-prefix >> arguments
+if "%LIBINTL_PREFIX%" == "disabled" echo --without-libintl-prefix >> arguments
+if "%HTML%" == "enabled" echo --enable-html >> arguments
+if "%HTML%" == "disabled" echo --disable-html >> arguments
+if not "%ARGS%" == "" echo %ARGS% >> arguments
+set ARGS=
+set CACHING=
+set DEPENDENCY_TRACKING=
+set LIBICONV_PREFIX=
+set LIBINTL_PREFIX=
+set HTML=
+
+if "%XSRC%" == "." goto InPlace
+
+:NotInPlace
+redir -e /dev/null update %XSRC%/configure.orig ./configure
+test -f ./configure
+if errorlevel 1 update %XSRC%/configure ./configure
+
+:InPlace
+Rem Update configuration files
+echo Updating configuration scripts...
+test -f ./configure.orig
+if errorlevel 1 update configure configure.orig
+sed -f %XSRC%/djgpp/config.sed configure.orig > configure
+if errorlevel 1 goto SedError
+
+Rem Make sure they have a config.site file
+set CONFIG_SITE=%XSRC%/djgpp/config.site
+if not "%CONFIG_SITE%" == "%XSRC%/djgpp/config.site" goto SmallEnv
+
+Rem Make sure crucial file names are not munged by unpacking
+test -f %XSRC%/po/Makefile.in.in
+if not errorlevel 1 mv -f %XSRC%/po/Makefile.in.in %XSRC%/po/Makefile.in-in
+test -f %XSRC%/po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/po/Makefile.in %XSRC%/po/Makefile.in-in
+test -f %XSRC%/po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/po/Makefile.inin %XSRC%/po/Makefile.in-in
+test -f %XSRC%/po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/po/Makefile.in_in %XSRC%/po/Makefile.in-in
+test -f %XSRC%/po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/po/Makefile_in.in %XSRC%/po/Makefile.in-in
+test -f %XSRC%/runtime-po/Makefile.in.in
+if not errorlevel 1 mv -f %XSRC%/runtime-po/Makefile.in.in %XSRC%/runtime-po/Makefile.in-in
+test -f %XSRC%/runtime-po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/runtime-po/Makefile.in %XSRC%/runtime-po/Makefile.in-in
+test -f %XSRC%/runtime-po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/runtime-po/Makefile.inin %XSRC%/runtime-po/Makefile.in-in
+test -f %XSRC%/runtime-po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/runtime-po/Makefile.in_in %XSRC%/runtime-po/Makefile.in-in
+test -f %XSRC%/runtime-po/Makefile.in-in
+if errorlevel 1 mv -f %XSRC%/runtime-po/Makefile_in.in %XSRC%/runtime-po/Makefile.in-in
+test -f %XSRC%/data/c++.m4
+if not errorlevel 1 mv -f %XSRC%/data/c++.m4 %XSRC%/data/cxx.m4
+test -f %XSRC%/data/cxx.m4
+if errorlevel 1 mv -f %XSRC%/data/cpp.m4 %XSRC%/data/cxx.m4
+:scan_gram_c_Test
+test -f %XSRC%/src/c-scan-gram.c
+if not errorlevel 1 goto scan_skel_c_Test
+test -f %XSRC%/src/scan-gram-c.c
+if not errorlevel 1 mv -f %XSRC%/src/scan-gram-c.c %XSRC%/src/c-scan-gram.c
+:scan_skel_c_Test
+test -f %XSRC%/src/c-scan-skel.c
+if not errorlevel 1 goto FixFiles
+test -f %XSRC%/src/scan-skel-c.c
+if not errorlevel 1 mv -f %XSRC%/src/scan-skel-c.c %XSRC%/src/c-scan-skel.c
+
+:FixFiles
+Rem Fix data/lalr1.cc and data/location.cc to reflect the renaming of c++.m4
+sed "s/c++\.m4/cxx.m4/" %XSRC%/data/lalr1.cc > lalr1.cc
+if errorlevel 1 goto lalr1_ccFileError
+mv ./lalr1.cc %XSRC%/data/lalr1.cc
+sed "s/c++\.m4/cxx.m4/" %XSRC%/data/location.cc > location.cc
+if errorlevel 1 goto location.ccFileError
+mv ./location.cc %XSRC%/data/location.cc
+sed "s/c++\.m4/cxx.m4/" %XSRC%/data/glr.cc > glr.cc
+if errorlevel 1 goto glr.ccFileError
+mv ./glr.cc %XSRC%/data/glr.cc
+
+Rem Define DJGPP specific defs in config.hin
+echo Editing config.hin...
+test -f %XSRC%/config_h.orig
+if errorlevel 1 update %XSRC%/config.hin %XSRC%/config_h.orig
+sed -f %XSRC%/djgpp/config_h.sed %XSRC%/config_h.orig > config.hin
+if errorlevel 1 goto SedError2
+mv -f config.hin %XSRC%/config.hin
+
+
+Rem Fixing ilicit testsuite file name.
+test -f %XSRC%/tests/c++.at
+if not errorlevel 1 mv -f %XSRC%/tests/c++.at %XSRC%/tests/cxx.at
+
+Rem Fixing ilicit calc++ file names in the calc++ directory.
+test -d %XSRC%/examples/calc++
+if not errorlevel 1 mv -f %XSRC%/examples/calc++ %XSRC%/examples/calcxx
+test -d %XSRC%/examples/calcxx
+if errorlevel 1 mv -f %XSRC%/examples/calcpp %XSRC%/examples/calcxx
+test -f %XSRC%/examples/calcxx/calc++-scanner.cc
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-scanner.cc %XSRC%/examples/calcxx/calcxx-scanner.cc
+test -f %XSRC%/examples/calcxx/calcxx-scanner.cc
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-scanner.cc %XSRC%/examples/calcxx/calcxx-scanner.cc
+test -f %XSRC%/examples/calcxx/calc++-scanner.ll
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-scanner.ll %XSRC%/examples/calcxx/calcxx-scanner.ll
+test -f %XSRC%/examples/calcxx/calcxx-scanner.ll
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-scanner.ll %XSRC%/examples/calcxx/calcxx-scanner.ll
+test -f %XSRC%/examples/calcxx/calc++-driver.cc
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-driver.cc %XSRC%/examples/calcxx/calcxx-driver.cc
+test -f %XSRC%/examples/calcxx/calcxx-driver.cc
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-driver.cc %XSRC%/examples/calcxx/calcxx-driver.cc
+test -f %XSRC%/examples/calcxx/calc++-driver.hh
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-driver.hh %XSRC%/examples/calcxx/calcxx-driver.hh
+test -f %XSRC%/examples/calcxx/calcxx-driver.hh
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-driver.hh %XSRC%/examples/calcxx/calcxx-driver.hh
+test -f %XSRC%/examples/calcxx/calc++-parser.cc
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-parser.cc %XSRC%/examples/calcxx/calcxx-parser.cc
+test -f %XSRC%/examples/calcxx/calcxx-parser.cc
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-parser.cc %XSRC%/examples/calcxx/calcxx-parser.cc
+test -f %XSRC%/examples/calcxx/calc++-parser.hh
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-parser.hh %XSRC%/examples/calcxx/calcxx-parser.hh
+test -f %XSRC%/examples/calcxx/calcxx-parser.hh
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-parser.hh %XSRC%/examples/calcxx/calcxx-parser.hh
+test -f %XSRC%/examples/calcxx/calc++-parser.stamp
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-parser.stamp %XSRC%/examples/calcxx/calcxx-parser.stamp
+test -f %XSRC%/examples/calcxx/calcxx-parser.stamp
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-parser.stamp %XSRC%/examples/calcxx/calcxx-parser.stamp
+test -f %XSRC%/examples/calcxx/calc++-parser.yy
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++-parser.yy %XSRC%/examples/calcxx/calcxx-parser.yy
+test -f %XSRC%/examples/calcxx/calcxx-parser.yy
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp-parser.yy %XSRC%/examples/calcxx/calcxx-parser.yy
+test -f %XSRC%/examples/calcxx/calc++.cc
+if not errorlevel 1 mv -f %XSRC%/examples/calcxx/calc++.cc %XSRC%/examples/calcxx/calcxx.cc
+test -f %XSRC%/examples/calcxx/calcxx.cc
+if errorlevel 1 mv -f %XSRC%/examples/calcxx/calcpp.cc %XSRC%/examples/calcxx/calcxx.cc
+
+Rem Fixing #include lines in calcxx files.
+sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx.cc > calcxx.cc
+if errorlevel 1 goto calcxxFileError
+mv ./calcxx.cc %XSRC%/examples/calcxx/calcxx.cc
+sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx-driver.cc > calcxx-driver.cc
+if errorlevel 1 goto calcxxFileError
+mv ./calcxx-driver.cc %XSRC%/examples/calcxx/calcxx-driver.cc
+sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx-driver.hh > calcxx-driver.hh
+if errorlevel 1 goto calcxxFileError
+mv ./calcxx-driver.hh %XSRC%/examples/calcxx/calcxx-driver.hh
+sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx-parser.cc > calcxx-parser.cc
+if errorlevel 1 goto calcxxFileError
+mv ./calcxx-parser.cc %XSRC%/examples/calcxx/calcxx-parser.cc
+sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx-parser.hh > calcxx-parser.hh
+if errorlevel 1 goto calcxxFileError
+mv ./calcxx-parser.hh %XSRC%/examples/calcxx/calcxx-parser.hh
+:sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx-parser.yy > calcxx-parser.yy
+:if errorlevel 1 goto calcxxFileError
+:mv ./calcxx-parser.yy %XSRC%/examples/calcxx/calcxx-parser.yy
+sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx-scanner.cc > calcxx-scanner.cc
+if errorlevel 1 goto calcxxFileError
+mv ./calcxx-scanner.cc %XSRC%/examples/calcxx/calcxx-scanner.cc
+:sed "/#[ ]*include/s/++/xx/" %XSRC%/examples/calcxx/calcxx-scanner.ll > calcxx-scanner.ll
+:if errorlevel 1 goto calcxxFileError
+:mv ./calcxx-scanner.ll %XSRC%/examples/calcxx/calcxx-scanner.ll
+sed "s/calc++/calcxx/" %XSRC%/examples/calcxx/test > test
+if errorlevel 1 goto calcxxFileError
+mv ./test %XSRC%/examples/calcxx/test
+
+
+Rem Fixing the scanner files to make file names 8.3 valid.
+Rem Use only if you want to change the scan-gram.l and scan-skel.l files.
+: sed "/outfile=/s/\.yy/yy/" %XSRC%/src/scan-gram.l > scan-gram.l
+: if errorlevel 1 goto ScannerFileError
+: mv ./scan-gram.l %XSRC%/src/scan-gram.l
+: sed "/outfile=/s/\.yy/yy/" %XSRC%/src/scan-skel.l > scan-skel.l
+: if errorlevel 1 goto ScannerFileError
+: mv ./scan-skel.l %XSRC%/src/scan-skel.l
+
+
+Rem This is required because DOS/Windows are case-insensitive
+Rem to file names, and "make install" will do nothing if Make
+Rem finds a file called `install'.
+if exist INSTALL ren INSTALL INSTALL.txt
+
+Rem Set SHELL to a sane default or some configure tests stop working
+Rem if the package is configured across partitions.
+if not "%SHELL%" == "" goto HomeName
+set SHELL=/bin/sh
+if not "%SHELL%" == "/bin/sh" goto SmallEnv
+echo No SHELL found in the environment, using default value
+
+:HomeName
+Rem Set HOME to a sane default so configure stops complaining.
+if not "%HOME%" == "" goto HostName
+set HOME=%XSRC%/djgpp
+if not "%HOME%" == "%XSRC%/djgpp" goto SmallEnv
+echo No HOME found in the environment, using default value
+
+:HostName
+Rem Set HOSTNAME so it shows in config.status
+if not "%HOSTNAME%" == "" goto hostdone
+if "%windir%" == "" goto msdos
+set OS=MS-Windows
+if not "%OS%" == "MS-Windows" goto SmallEnv
+goto haveos
+:msdos
+set OS=MS-DOS
+if not "%OS%" == "MS-DOS" goto SmallEnv
+:haveos
+if not "%USERNAME%" == "" goto haveuname
+if not "%USER%" == "" goto haveuser
+echo No USERNAME and no USER found in the environment, using default values
+set HOSTNAME=Unknown PC
+if not "%HOSTNAME%" == "Unknown PC" goto SmallEnv
+goto userdone
+:haveuser
+set HOSTNAME=%USER%'s PC
+if not "%HOSTNAME%" == "%USER%'s PC" goto SmallEnv
+goto userdone
+:haveuname
+set HOSTNAME=%USERNAME%'s PC
+if not "%HOSTNAME%" == "%USERNAME%'s PC" goto SmallEnv
+:userdone
+set _HOSTNAME=%HOSTNAME%, %OS%
+if not "%_HOSTNAME%" == "%HOSTNAME%, %OS%" goto SmallEnv
+set HOSTNAME=%_HOSTNAME%
+:hostdone
+set _HOSTNAME=
+set OS=
+
+Rem install-sh is required by the configure script but clashes with the
+Rem various Makefile install-foo targets, so we MUST have it before the
+Rem script runs and rename it afterwards
+test -f %XSRC%/install-sh
+if not errorlevel 1 goto NoRen0
+test -f %XSRC%/install-sh.sh
+if not errorlevel 1 mv -f %XSRC%/install-sh.sh %XSRC%/install-sh
+:NoRen0
+
+if "%NLS%" == "disabled" goto WithoutNLS
+
+:WithNLS
+Rem Check for the needed libraries and binaries.
+test -x /dev/env/DJDIR/bin/msgfmt.exe
+if errorlevel 1 goto MissingNLSTools
+test -x /dev/env/DJDIR/bin/xgettext.exe
+if errorlevel 1 goto MissingNLSTools
+test -f /dev/env/DJDIR/include/libcharset.h
+if errorlevel 1 goto MissingNLSTools
+test -f /dev/env/DJDIR/lib/libcharset.a
+if errorlevel 1 goto MissingNLSTools
+test -f /dev/env/DJDIR/include/iconv.h
+if errorlevel 1 goto MissingNLSTools
+test -f /dev/env/DJDIR/lib/libiconv.a
+if errorlevel 1 goto MissingNLSTools
+test -f /dev/env/DJDIR/include/libintl.h
+if errorlevel 1 goto MissingNLSTools
+test -f /dev/env/DJDIR/lib/libintl.a
+if errorlevel 1 goto MissingNLSTools
+
+Rem Recreate the files in the %XSRC%/po subdir with our ported tools.
+redir -e /dev/null rm %XSRC%/po/*.gmo
+redir -e /dev/null rm %XSRC%/po/bison.pot
+redir -e /dev/null rm %XSRC%/po/cat-id-tbl.c
+redir -e /dev/null rm %XSRC%/po/stamp-cat-id
+
+Rem Update the arguments file for the configure script.
+Rem We prefer without-included-gettext because libintl.a from gettext package
+Rem is the only one that is garanteed to have been ported to DJGPP.
+echo --enable-nls --without-included-gettext >> arguments
+goto ConfigurePackage
+
+:MissingNLSTools
+echo Needed libs/tools for NLS not found. Configuring without NLS.
+:WithoutNLS
+Rem Update the arguments file for the configure script.
+echo --disable-nls >> arguments
+
+:ConfigurePackage
+echo Running the ./configure script...
+sh ./configure @arguments
+if errorlevel 1 goto CfgError
+rm arguments
+echo Done.
+goto End
+
+:lalr1_ccFileError
+echo ./data/lalr1.cc file editing failed!
+goto End
+
+:glr_ccFileError
+echo ./data/glr.cc file editing failed!
+goto End
+
+:location_ccFileError
+echo ./data/location.cc file editing failed!
+goto End
+
+:calcxxFileError
+echo ./examples/calcxx file editing failed!
+goto End
+
+:ScannerFileError
+echo ./scanner file editing failed!
+goto End
+
+:SedError
+echo ./configure script editing failed!
+goto End
+
+:SedError2
+echo ./config.hin editing failed!
+goto End
+
+:CfgError
+echo ./configure script exited abnormally!
+goto End
+
+:SmallEnv
+echo Your environment size is too small. Enlarge it and run me again.
+echo Configuration NOT done!
+
+:End
+test -f %XSRC%/install-sh.sh
+if not errorlevel 1 goto NoRen1
+test -f %XSRC%/install-sh
+if not errorlevel 1 mv -f %XSRC%/install-sh %XSRC%/install-sh.sh
+:NoRen1
+if "%SHELL%" == "/bin/sh" set SHELL=
+if "%HOME%" == "%XSRC%/djgpp" set HOME=
+set CONFIG_SITE=
+set HOSTNAME=
+set NLS=
+set XSRC=
diff --git a/djgpp/config.sed b/djgpp/config.sed
new file mode 100644
index 0000000..0869e8c
--- /dev/null
+++ b/djgpp/config.sed
@@ -0,0 +1,164 @@
+# DJGPP specific configuration file.
+# Sed script for additional DJGPP specific editing
+# of the configure script generated by autoconf 2.57.
+
+
+# Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+# Additional editing of Makefiles
+/(echo[ ]*':t/ a\
+# DJGPP specific Makefile changes.\
+ /^aliaspath * *=/s,:,";",g;t t\
+ /TEXINPUTS=/s,:,";",g;t t\
+ /PATH=/s,:,";",g;t t\
+ s,\\.deps,_deps,g;t t\
+ s,\\.new\\.,_new.,g;t t\
+ s,\\.old\\.,_old.,g;t t\
+ s,c++\\.at,cxx.at,g;t t\
+ s,c++\\.m4,cxx.m4,g;t t\
+ s,calc++,calcxx,g;t t\
+ s,scan-gram-c,c-scan-gram,g;t t\
+ s,scan-skel-c,c-scan-skel,g;t t\
+ s,Makefile\\.in\\.in,Makefile.in-in,g;t t\
+ s,Makefile\\.am\\.in,Makefile.am-in,g;t t\
+ s,(MAKEINFOFLAGS),& --no-split,\
+ /^install-info-am:/,/^$/ {\
+ /@list=/ s,\\\$(INFO_DEPS),& bison.i,\
+ /@for *file/ s,\\\$(INFO_DEPS),& bison.i,\
+ s,file-\\[0-9\\]\\[0-9\\],& \\$\\$file[0-9] \\$\\$file[0-9][0-9],\
+ }\
+ /^\\.y\\.c:/,/^$/ {\
+ /\\\$(YACCCOMPILE)/ {\
+ a\\\
+ -@test -f y.tab.c && mv -f y.tab.c y_tab.c\\\
+ -@test -f y.tab.h && mv -f y.tab.h y_tab.h\
+ }\
+ }\
+/^libbison.a:/ i\\\
+\\$(top_srcdir)/djgpp/subpipe.c: \\$(top_srcdir)/djgpp/subpipe.h\\\
+subpipe.o: \\$(top_srcdir)/djgpp/subpipe.c \\$(top_srcdir)/djgpp/subpipe.h\\\
+ \\$(COMPILE) -c \\$<\
+/^yacc:/ i\\\
+yacc.bat:\\\
+ echo "bison\\$(EXEEXT) -y %1 %2 %3 %4 %5 %6 %7 %8 %9" >\\$@\
+/^bin_SCRIPTS =/s/$/ yacc.bat/\
+/^MOSTLYCLEANFILES = yacc/s/$/ yacc.bat/
+
+
+# Makefile.in.in is renamed to Makefile.in-in.
+/ac_config_files=/,/_ACEOF/ {
+ s|po/Makefile\.in|&:po/Makefile.in-in|
+}
+/CONFIG_FILES=/ s|po/Makefile\.in|&:po/Makefile.in-in|2
+
+# We always use _deps and _libs instead of .deps and .libs, because
+# the latter is an invalid name on 8+3 MS-DOS file system. This makes
+# the generated Makefiles good for every DJGPP installation, not only
+# the one where the package was configured (which could happen to be
+# a Windows box, where leading dots in file names are allowed).
+s,\.deps,_deps,g
+s,\.libs,_libs,g
+/^rmdir[ ]*\.tst/ i\
+am__leading_dot=_
+
+# Replace (command) > /dev/null with `command > /dev/null`, since
+# parenthesized commands always return zero status in the ported Bash,
+# even if the named command doesn't exist
+/if ([^|;`]*null/{
+ s,(,`,
+ s,),,
+ /null[ ]*2>&1/ s,2>&1,&`,
+ /null.*null/ s,null.*null,&`,
+ /null.*null/ !{
+ /null[ ]*2>&1/ !s,null,&`,
+ }
+}
+
+# DOS-style absolute file names should be supported as well
+/\*) top_srcdir=/s,/\*,[\\\\/]* | ?:[\\\\/]*,
+
+# Prevent the spliting of subs.sed.
+# The sed script: subs.sed is split into 48 lines long files.
+# This will produce sed scripts called subs-$ac_sed_frag.sed, where
+# $ac_sed_frag is some unique number. This will not work if the splited
+# sed script contains a multiple line sed command at line #48. In this
+# case the first part of the multiple line sed command will be written
+# at the end of one particular subs-$ac_sed_frag.sed and the rest of the
+# sed command will be written at the begining of the next subs-$ac_sed_frag.sed
+# making both sed script useless.
+# This matches the configure script produced by Autoconf 2.57
+/ac_max_sed_lines=[0-9]/ s,=.*$,=`sed -n "$=" $tmp/subs.sed`,
+
+# The following two items are changes needed for configuring
+# and compiling across partitions.
+# 1) The given srcdir value is always translated from the
+# "x:" syntax into "/dev/x" syntax while we run configure.
+/^[ ]*-srcdir=\*.*$/ a\
+ ac_optarg=`echo "$ac_optarg" | sed "s,^\\([A-Za-z]\\):,/dev/\\1,"`
+/set X `ls -Lt \$srcdir/ i\
+ if `echo $srcdir | grep "^/dev/" - > /dev/null`; then\
+ srcdir=`echo "$srcdir" | sed -e "s%^/dev/%%" -e "s%/%:/%"`\
+ fi
+
+# Autoconf 2.52e generated configure scripts
+# write absolute paths into Makefiles and bison.in
+# making them useless for DJGPP installations for
+# which the package has not been configured for.
+/MISSING=/,/^$/ {
+ /^fi$/ a\
+am_missing_run=`echo "$am_missing_run" | sed 's%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%'`
+}
+/^install_sh=/a\
+install_sh=`echo "$install_sh" | sed 's%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*%${top_srcdir}%'`
+
+# This will only work if the assumption that the
+# testsuite is ran from the following path:
+# ${top_srcdir}/tests/testsuite.dir
+# holds. The explicit names are of no importance.
+# ../../. == ${top_srcdir}
+/\.)[ ]*ac_abs_builddir=/,/^esac$/ {
+ /^esac$/ a\
+ac_abs_builddir=`echo "$ac_abs_builddir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%"`
+}
+/\.)[ ]*ac_abs_top_builddir=/,/^esac$/ {
+ /^esac$/ a\
+ac_abs_top_builddir=`echo "$ac_abs_top_builddir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%"`
+}
+/\.)[ ]*ac_abs_srcdir=/,/^esac$/ {
+ /^esac$/ a\
+ac_abs_srcdir=`echo "$ac_abs_srcdir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../.%"`
+}
+/\.)[ ]*ac_abs_top_srcdir=/,/^esac$/ {
+ /^esac$/ a\
+ac_abs_top_srcdir=`echo "$ac_abs_top_srcdir" | sed "s%/dev.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%;s%.:.*/bison[-_0-9]\\{1,1\\}[-.0-9A-z]*/[^/]*%../../../%"`
+}
+
+# Add DJGPP version information.
+/^#define VERSION/ s/\$VERSION/& (DJGPP port (r1))/
+
+# We need makeinfo to make the html formated docs.
+/\$am_missing_run[ ]*makeinfo/ s,\$am_missing_run,,
+
+# The path to the FORTRAN compiler and libraries
+# shall contain no absolute path reference so it
+# will be good for all djgpp installations.
+/^FLIBS="\$ac_cv_flibs"/ i\
+ac_djgpp_path=`echo "$DJDIR" | sed 's%\\\\\\%/%g' | tr $as_cr_LETTERS $as_cr_letters`\
+ac_cv_flibs=`echo "$ac_cv_flibs" | sed "s%-L$ac_djgpp_path%-L/dev/env/DJDIR%g"`
+
+# The following is not a valid DOS file name
+s/calc++/calcxx/g
diff --git a/djgpp/config.site b/djgpp/config.site
new file mode 100644
index 0000000..a545370
--- /dev/null
+++ b/djgpp/config.site
@@ -0,0 +1,83 @@
+#! /bin/sh
+
+# This is the config.site file for configuring GNU packages
+# which are to be built with DJGPP tools.
+
+# Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+# Include the djgpp subdirectory in PATH, so that getconf is found
+PATH="$srcdir/djgpp:$PATH"
+
+# These two variables are required, otherwise looking for
+# programs along the PATH will not work.
+PATH_SEPARATOR=:
+PATH_EXPAND=y
+
+# This is required in for "test -f foo" to find foo.exe
+export TEST_FINDS_EXE=y
+
+# The root of the DJGPP tree serves as the default prefix
+test "x$prefix" = xNONE && prefix='/dev/env/DJDIR'
+
+# This is required for config.status script to be run, since
+# ./configure runs it by invoking ${CONFIG_SHELL-/bin/sh}
+CONFIG_SHELL=${CONFIG_SHELL='sh'}
+
+# These are set here so the generated Makefile's will be good
+# for every DJGPP installation, not only the one where the
+# package was configured.
+# $INSTALL must be an absolute path name, otherwise config.status
+# will try to prepend ./ and ../ to it when it goes into subdirs.
+INSTALL=${INSTALL='/dev/env/DJDIR/bin/ginstall -c'}
+RANLIB=${RANLIB='ranlib'}
+GMSGFMT=${GMSGFMT='/dev/env/DJDIR/bin/msgfmt'}
+MSGFMT=${MSGFMT='/dev/env/DJDIR/bin/msgfmt'}
+XGETTEXT=${XGETTEXT='/dev/env/DJDIR/bin/xgettext'}
+AWK=${AWK='gawk'}
+
+# A sane default for emacs.
+ac_cv_path_EMACS=${EMACS='/dev/env/DJDIR/gnu/emacs/bin/emacs'}
+
+# A sane default for m4.
+ac_cv_path_M4=${M4='/dev/env/DJDIR/bin/m4'}
+
+# A sane default for grep.
+ac_cv_path_GREP=${GREP='/dev/env/DJDIR/bin/grep'}
+
+# A sane default for egrep.
+ac_cv_path_EGREP=${EGREP='/dev/env/DJDIR/bin/egrep'}
+
+# A sane default for fgrep.
+ac_cv_path_FGREP=${FGREP='/dev/env/DJDIR/bin/fgrep'}
+
+# A sane default for sed.
+ac_cv_path_SED=${SED='/dev/env/DJDIR/bin/sed'}
+
+# These are set here so the generated libtool will be good
+# for every DJGPP installation, not only the one where the
+# package was configured.
+NM=${NM='nm'}
+LD=${LD='ld'}
+
+# Force the test for 'ln -s' to report 'cp -pf'.
+ac_cv_prog_LN_S='cp -pf'
+
+# There is no fork and vfork functionality.
+ac_cv_func_fork=no
+ac_cv_func_vfork=no
+ac_cv_func_pipe=no
diff --git a/djgpp/config_h.sed b/djgpp/config_h.sed
new file mode 100644
index 0000000..a8ea467
--- /dev/null
+++ b/djgpp/config_h.sed
@@ -0,0 +1,29 @@
+# sed script for DJGPP specific editing of config.hin
+
+# Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+$ a\
+\
+\
+/* DJGPP specific defines. */\
+\
+#include <unistd.h>\
+#define TAB_EXT ((pathconf(NULL, _PC_NAME_MAX) > 12) ? ".tab" : "_tab")\
+#define OUTPUT_EXT ((pathconf(NULL, _PC_NAME_MAX) > 12) ? ".output" : ".out")\
+\
+#define DEFAULT_TMPDIR "/dev/env/DJDIR/tmp"
diff --git a/djgpp/djunpack.bat b/djgpp/djunpack.bat
new file mode 100644
index 0000000..5b08a79
--- /dev/null
+++ b/djgpp/djunpack.bat
@@ -0,0 +1,88 @@
+@echo off
+Rem
+Rem WARNING WARNING WARNING: This file needs to have DOS CRLF end-of-line
+Rem format, or else stock DOS/Windows shells will refuse to run it.
+Rem
+Rem This batch file unpacks the Bison distribution while simultaneously
+Rem renaming some of the files whose names are invalid on DOS or conflict
+Rem with other file names after truncation to DOS 8+3 namespace.
+Rem
+Rem Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+Rem
+Rem This program is free software; you can redistribute it and/or modify
+Rem it under the terms of the GNU General Public License as published by
+Rem the Free Software Foundation; either version 2, or (at your option)
+Rem any later version.
+Rem
+Rem This program is distributed in the hope that it will be useful,
+Rem but WITHOUT ANY WARRANTY; without even the implied warranty of
+Rem MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+Rem GNU General Public License for more details.
+Rem
+Rem You should have received a copy of the GNU General Public License
+Rem along with this program; if not, write to the Free Software Foundation,
+Rem Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+Rem
+Rem
+Rem Invoke like this:
+Rem
+Rem djunpack bison-XYZ.tar.gz
+Rem or
+Rem djunpack bison-XYZ.tar.bz2
+Rem
+Rem where XYZ is the version number. If the argument includes leading
+Rem directories, it MUST use backslashes, not forward slashes.
+Rem
+
+set ENVIRONMENT_SIZE_TEST_STRING=ENVIRONMENT_SIZE_TEST_STRING
+if "%ENVIRONMENT_SIZE_TEST_STRING%"=="ENVIRONMENT_SIZE_TEST_STRING" GoTo EnvOk
+Rem If their environment space is too small, re-exec with a larger one
+command.com /e:4096 /c %0 %1
+GoTo End
+
+:EnvOk
+set ENVIRONMENT_SIZE_TEST_STRING=
+if "%1" == "" GoTo NoArgument
+if not exist %1 GoTo NoArchive
+Rem Extract top src dir from archive file.
+djtar -t %1 > top_src.dir
+Rem The following uses a feature of COPY whereby it does not copy
+Rem empty files. We need that because the previous line will create
+Rem an empty fnchange.tmp even if the command failed for some reason.
+copy top_src.dir junk.tmp > nul
+if not exist junk.tmp GoTo NoDjTar
+del junk.tmp
+sed "1{s/^.*bison-/djtar -x -p -o bison-/;s|$|djgpp/fnchange.lst %%1 > fnchange.tmp|};2,$d" top_src.dir > ext_list.bat
+Rem See the comment above about the reason for using COPY.
+copy ext_list.bat junk.tmp > nul
+if not exist junk.tmp GoTo NoSed
+del junk.tmp
+Rem Extract fnchange.lst from archive.
+call ext_list.bat %1
+del ext_list.bat
+sed "1{s|^.*bison-|s/@V@/bison-|;s|$|g|};2,$d" top_src.dir > version.sed
+sed -f version.sed < fnchange.tmp > fnchange.lst
+del version.sed
+del fnchange.tmp
+del top_src.dir
+Rem unpack the source distribution
+djtar -x -n fnchange.lst %1
+del fnchange.lst
+GoTo End
+
+:NoSed
+del junk.tmp
+echo FAIL: Sed is not available.
+GoTo End
+:NoDjTar
+del junk.tmp
+echo FAIL: DJTAR is not available or no fnchange.lst file in %1.
+GoTo End
+:NoArchive
+echo FAIL: the file %1 does not seem to exist.
+echo Remember that %1 cannot use forward slashes, only backslashes.
+GoTo End
+:NoArgument
+echo FAIL: no archive file has been specified.
+echo Remember that the file name cannot use forward slashes, only backslashes.
+:End
diff --git a/djgpp/fnchange.lst b/djgpp/fnchange.lst
new file mode 100644
index 0000000..69a61e6
--- /dev/null
+++ b/djgpp/fnchange.lst
@@ -0,0 +1,2 @@
+@V@/src/scan-gram-c.c @V@/src/c-scan-gram.c
+@V@/src/scan-skel-c.c @V@/src/c-scan-skel.c
diff --git a/djgpp/subpipe.c b/djgpp/subpipe.c
new file mode 100644
index 0000000..33e2a38
--- /dev/null
+++ b/djgpp/subpipe.c
@@ -0,0 +1,285 @@
+/* Subprocesses with pipes.
+
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* Written by Juan Manuel Guerrero <juan.guerrero@gmx.de>. */
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "subpipe.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <process.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "xalloc.h"
+
+
+#ifndef STDIN_FILENO
+# define STDIN_FILENO 0
+#endif
+#ifndef STDOUT_FILENO
+# define STDOUT_FILENO 1
+#endif
+
+
+#include "error.h"
+
+#include "gettext.h"
+#define _(Msgid) gettext (Msgid)
+
+
+/* Initialize this module. */
+
+
+static int old_stdin;
+static int old_stdout;
+static char **arguments;
+static char tmp_file_name[2][L_tmpnam];
+
+#define remove_tmp_file(fd, name) \
+ do { \
+ close ((fd)); \
+ if (unlink ((name))) \
+ error (EXIT_FAILURE, 0, _("removing of `%s' failed"), (name)); \
+ } while (0)
+
+
+void
+init_subpipe(void)
+{
+ int fd;
+
+ strcpy(tmp_file_name[0], "/dev/env/TMPDIR/bnXXXXXX");
+ fd = mkstemp(tmp_file_name[0]);
+ if (fd < 0)
+ error(EXIT_FAILURE, 0, _("creation of a temporary file failed"));
+ close (fd);
+
+ strcpy(tmp_file_name[1], "/dev/env/TMPDIR/bnXXXXXX");
+ fd = mkstemp(tmp_file_name[1]);
+ if (fd < 0)
+ error(EXIT_FAILURE, 0, _("creation of a temporary file failed"));
+ close (fd);
+}
+
+
+/* Create a subprocess that is run as a filter. ARGV is the
+ NULL-terminated argument vector for the subprocess. Store read and
+ write file descriptors for communication with the subprocess into
+ FD[0] and FD[1]: input meant for the process can be written into
+ FD[0], and output from the process can be read from FD[1]. Return
+ the subprocess id.
+
+ Because DOS has neither fork nor pipe functionality to run the subprocess
+ as a filter, the filter is reproduced using temporary files. First bison's
+ stdout is redirected to a temporary file. After bison has produced all of
+ is output, this file is closed and connected to m4's stdin. All m4's output
+ is redirected from m4's stdout to a second temporary file and reopened as
+ bison's stdin. */
+
+pid_t
+create_subpipe(char const *const *argv, int fd[2])
+{
+ int argc;
+ int from_in_fd; /* pipe from bison to m4. */
+ pid_t pid;
+
+
+ pid = getpid();
+
+ /*
+ * Save original stdin and stdout
+ * for later restauration.
+ */
+ old_stdin = dup(STDIN_FILENO);
+ if (old_stdin < 0)
+ error(EXIT_FAILURE, 0, _("saving stdin failed"));
+
+ old_stdout = dup(STDOUT_FILENO);
+ if (old_stdout < 0)
+ error(EXIT_FAILURE, 0, _("saving stdout failed"));
+
+ /*
+ * Save argv for later use.
+ */
+ for (argc = 0; argv[argc]; argc++)
+ ;
+ argc++;
+ arguments = xmalloc(argc * sizeof(arguments[0]));
+ for (argc = 0; argv[argc]; argc++)
+ {
+ arguments[argc] = xmalloc((strlen(argv[argc]) + 1) * sizeof(arguments[0][0]));
+ strcpy(arguments[argc], argv[argc]);
+ }
+ arguments[argc] = NULL;
+
+ /*
+ * All bison's output will be gathered in this temporary file
+ * and will be redirected to m4's stdin.
+ */
+ from_in_fd = open(tmp_file_name[0], O_WRONLY | O_CREAT | O_TRUNC, S_IWUSR);
+ if (from_in_fd < 0)
+ error(EXIT_FAILURE, 0, _("opening of tmpfile failed"));
+ if (dup2(from_in_fd, STDOUT_FILENO) < 0)
+ {
+ remove_tmp_file(from_in_fd, tmp_file_name[0]);
+ error(EXIT_FAILURE, 0, _("redirecting bison's stdout to the temporary file failed"));
+ }
+ close(from_in_fd);
+
+
+ fd[0] = STDOUT_FILENO;
+ return pid;
+}
+
+
+/* A signal handler that just records that a signal has happened. */
+static int child_interrupted;
+
+static void
+signal_catcher(int signo)
+{
+ child_interrupted++;
+}
+
+
+void
+end_of_output_subpipe(pid_t pid, int fd[2])
+{
+ char *program;
+ int from_out_fd = open(tmp_file_name[0], O_RDONLY, S_IRUSR); /* pipe from bison to m4. */
+ int to_in_fd = open(tmp_file_name[1], O_WRONLY | O_CREAT | O_TRUNC, S_IWUSR); /* pipe from m4 to bison. */
+ int status;
+ void (*previous_handler)(int);
+
+
+ program = strrchr(arguments[0], '/');
+ if (program)
+ program++;
+ else
+ program = arguments[0];
+
+ /*
+ * Redirect bison's output to m4's stdin.
+ */
+ if (from_out_fd < 0)
+ error(EXIT_FAILURE, 0, _("opening of tmpfile failed"));
+ if (dup2(from_out_fd, STDIN_FILENO) < 0)
+ {
+ remove_tmp_file(from_out_fd, tmp_file_name[0]);
+ error(EXIT_FAILURE, 0, _("redirecting m4's stdin from the temporary file failed"));
+ }
+ close(from_out_fd);
+
+ /*
+ * All m4's output will be gathered in this temporary file
+ * and will be redirected to bison's stdin.
+ */
+ if (to_in_fd < 0)
+ {
+ remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
+ error(EXIT_FAILURE, 0, _("opening of a temporary file failed"));
+ }
+ if (dup2(to_in_fd, STDOUT_FILENO) < 0)
+ {
+ remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
+ remove_tmp_file(to_in_fd, tmp_file_name[1]);
+ error(EXIT_FAILURE, 0, _("redirecting m4's stdout to a temporary file failed"));
+ }
+ close(to_in_fd);
+
+ /*
+ * Run m4.
+ */
+ child_interrupted = 0;
+ errno = 0;
+ previous_handler = signal(SIGINT, signal_catcher);
+ status = spawnvp(P_WAIT, program, arguments);
+ signal(SIGINT, previous_handler);
+ if (child_interrupted)
+ {
+ remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
+ remove_tmp_file(STDOUT_FILENO, tmp_file_name[1]);
+ error(EXIT_FAILURE, 0, _("subsidiary program `%s' interrupted"), program);
+ }
+ if (status)
+ {
+ remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
+ remove_tmp_file(STDOUT_FILENO, tmp_file_name[1]);
+ error(EXIT_FAILURE, 0, _(errno == ENOENT
+ ? "subsidiary program `%s' not found"
+ : status < 1
+ ? "subsidiary program `%s' failed"
+ : "subsidiary program `%s' failed (status=%i, errno=%i)"), program, status, errno);
+ }
+
+
+ /*
+ * Redirect m4's output to bison's stdin.
+ */
+ if (dup2(old_stdout, STDOUT_FILENO) < 0)
+ error(EXIT_FAILURE, 0, "restore of bison's stdout failed");
+ close(old_stdout);
+ to_in_fd = open(tmp_file_name[1], O_RDONLY, S_IRUSR); /* pipe from m4 to bison. */
+ if (to_in_fd < 0)
+ {
+ remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
+ error(EXIT_FAILURE, 0, _("opening of tmpfile failed"));
+ }
+ if (dup2(to_in_fd, STDIN_FILENO) < 0)
+ {
+ remove_tmp_file(STDIN_FILENO, tmp_file_name[0]);
+ remove_tmp_file(to_in_fd, tmp_file_name[1]);
+ error(EXIT_FAILURE, -1, "dup2");
+ error(EXIT_FAILURE, 0, _("redirecting bison's stdin from the temporary file failed"));
+ }
+ close(to_in_fd);
+
+
+ fd[1] = STDIN_FILENO;
+}
+
+
+/* Free resources, unlink temporary files and restore stdin and stdout. */
+
+void
+reap_subpipe(pid_t pid, char const *program)
+{
+ int argc;
+
+ for (argc = 0; arguments[argc]; argc++)
+ free(arguments[argc]);
+ free(arguments);
+
+ if (unlink(tmp_file_name[0]))
+ error(EXIT_FAILURE, 0, _("removing of `%s' failed"), tmp_file_name[0]);
+ if (unlink(tmp_file_name[1]))
+ error(EXIT_FAILURE, 0, _("removing of `%s' failed"), tmp_file_name[1]);
+
+ if (dup2(old_stdin, STDIN_FILENO) < 0)
+ error(EXIT_FAILURE, 0, "restore of bison's stdin failed");
+ close(old_stdin);
+}
diff --git a/djgpp/subpipe.h b/djgpp/subpipe.h
new file mode 100644
index 0000000..db2eb8c
--- /dev/null
+++ b/djgpp/subpipe.h
@@ -0,0 +1,27 @@
+/* Subprocesses with pipes.
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Juan Manuel Guerrero <juan.guerrero@gmx.de>. */
+
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+void init_subpipe(void);
+pid_t create_subpipe(char const * const *, int[2]);
+void end_of_output_subpipe(pid_t, int[2]);
+void reap_subpipe(pid_t, char const *);
diff --git a/doc/Makefile b/doc/Makefile
new file mode 100644
index 0000000..89398cd
--- /dev/null
+++ b/doc/Makefile
@@ -0,0 +1,597 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# doc/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+srcdir = .
+top_srcdir = ..
+
+pkgdatadir = $(datadir)/bison
+pkglibdir = $(libdir)/bison
+pkgincludedir = $(includedir)/bison
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = /usr/bin/install -c
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
+subdir = doc
+DIST_COMMON = $(bison_TEXINFOS) $(srcdir)/Makefile.am \
+ $(srcdir)/Makefile.in $(srcdir)/stamp-vti \
+ $(srcdir)/version.texi
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
+ $(top_srcdir)/m4/c-working.m4 $(top_srcdir)/m4/cxx.m4 \
+ $(top_srcdir)/m4/dirname.m4 $(top_srcdir)/m4/dmalloc.m4 \
+ $(top_srcdir)/m4/dos.m4 $(top_srcdir)/m4/error.m4 \
+ $(top_srcdir)/m4/exitfail.m4 $(top_srcdir)/m4/extensions.m4 \
+ $(top_srcdir)/m4/getopt.m4 $(top_srcdir)/m4/gettext_gl.m4 \
+ $(top_srcdir)/m4/gnulib.m4 $(top_srcdir)/m4/hard-locale.m4 \
+ $(top_srcdir)/m4/hash.m4 $(top_srcdir)/m4/iconv.m4 \
+ $(top_srcdir)/m4/inttypes_h_gl.m4 \
+ $(top_srcdir)/m4/lib-ld_gl.m4 $(top_srcdir)/m4/lib-link.m4 \
+ $(top_srcdir)/m4/lib-prefix_gl.m4 $(top_srcdir)/m4/m4.m4 \
+ $(top_srcdir)/m4/mbrtowc.m4 $(top_srcdir)/m4/mbstate_t.m4 \
+ $(top_srcdir)/m4/mbswidth.m4 $(top_srcdir)/m4/nls.m4 \
+ $(top_srcdir)/m4/obstack.m4 $(top_srcdir)/m4/onceonly.m4 \
+ $(top_srcdir)/m4/po_gl.m4 $(top_srcdir)/m4/progtest.m4 \
+ $(top_srcdir)/m4/quote.m4 $(top_srcdir)/m4/quotearg.m4 \
+ $(top_srcdir)/m4/stdbool.m4 $(top_srcdir)/m4/stdint_h_gl.m4 \
+ $(top_srcdir)/m4/stdio-safer.m4 $(top_srcdir)/m4/stpcpy.m4 \
+ $(top_srcdir)/m4/strdup.m4 $(top_srcdir)/m4/strerror.m4 \
+ $(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
+ $(top_srcdir)/m4/strtol.m4 $(top_srcdir)/m4/strtoul.m4 \
+ $(top_srcdir)/m4/strverscmp.m4 $(top_srcdir)/m4/subpipe.m4 \
+ $(top_srcdir)/m4/timevar.m4 $(top_srcdir)/m4/uintmax_t_gl.m4 \
+ $(top_srcdir)/m4/ulonglong_gl.m4 \
+ $(top_srcdir)/m4/unistd-safer.m4 $(top_srcdir)/m4/unistd_h.m4 \
+ $(top_srcdir)/m4/unlocked-io.m4 $(top_srcdir)/m4/warning.m4 \
+ $(top_srcdir)/m4/xalloc.m4 $(top_srcdir)/m4/xstrndup.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/build-aux/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+SOURCES =
+DIST_SOURCES =
+INFO_DEPS = $(srcdir)/bison.info
+TEXINFO_TEX = $(top_srcdir)/build-aux/texinfo.tex
+am__TEXINFO_TEX_DIR = $(top_srcdir)/build-aux
+DVIS = bison.dvi
+PDFS = bison.pdf
+PSS = bison.ps
+HTMLS = bison.html
+TEXINFOS = bison.texinfo
+TEXI2DVI = texi2dvi
+TEXI2PDF = $(TEXI2DVI) --pdf --batch
+MAKEINFOHTML = $(MAKEINFO) --html
+AM_MAKEINFOHTMLFLAGS = $(AM_MAKEINFOFLAGS)
+DVIPS = dvips
+am__installdirs = "$(DESTDIR)$(infodir)" "$(DESTDIR)$(man1dir)"
+man1dir = $(mandir)/man1
+NROFF = nroff
+MANS = $(man_MANS)
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run aclocal-1.9
+AMDEP_FALSE = #
+AMDEP_TRUE =
+AMTAR = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run tar
+AUTOCONF = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoconf
+AUTOHEADER = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoheader
+AUTOM4TE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autom4te
+AUTOMAKE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run automake-1.9
+AWK = gawk
+BISON_CXX_WORKS = :
+BISON_CXX_WORKS_FALSE = #
+BISON_CXX_WORKS_TRUE =
+BISON_LOCALEDIR = /usr/share/locale
+CC = gcc
+CCDEPMODE = depmode=gcc3
+CFLAGS = -g -O2
+CPP = gcc -E
+CPPFLAGS =
+CXX = g++
+CXXDEPMODE = depmode=gcc3
+CXXFLAGS = -g -O2
+CYGPATH_W = echo
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+## Process this file with automake to produce Makefile.in -*-Makefile-*-
+## Copyright (C) 2001, 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
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+ relfile=`echo "$$file" | sed 's|^.*/||'`; \
+ echo " install-info --info-dir='$(DESTDIR)$(infodir)' '$(DESTDIR)$(infodir)/$$relfile'";\
+ install-info --info-dir="$(DESTDIR)$(infodir)" "$(DESTDIR)$(infodir)/$$relfile" || :;\
+ done; \
+ else : ; fi
+install-man: install-man1
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-aminfo \
+ maintainer-clean-generic maintainer-clean-vti
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-aminfo mostlyclean-generic mostlyclean-vti
+
+pdf: pdf-am
+
+pdf-am: $(PDFS)
+
+ps: ps-am
+
+ps-am: $(PSS)
+
+uninstall-am: uninstall-info-am uninstall-man
+
+uninstall-man: uninstall-man1
+
+.PHONY: all all-am check check-am clean clean-generic clean-local \
+ dist-info distclean distclean-generic distdir dvi dvi-am html \
+ html-am info info-am install install-am install-data \
+ install-data-am install-exec install-exec-am install-info \
+ install-info-am install-man install-man1 install-strip \
+ installcheck installcheck-am installdirs maintainer-clean \
+ maintainer-clean-aminfo maintainer-clean-generic \
+ maintainer-clean-vti mostlyclean mostlyclean-aminfo \
+ mostlyclean-generic mostlyclean-vti pdf pdf-am ps ps-am \
+ uninstall uninstall-am uninstall-info-am uninstall-man \
+ uninstall-man1
+
+
+clean-local:
+ rm -rf *.t2d
+
+refcard.dvi: refcard.tex
+ tex refcard.tex
+
+refcard.ps: refcard.dvi
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/doc/bison.1 b/doc/bison.1
new file mode 100644
index 0000000..5e1d962
--- /dev/null
+++ b/doc/bison.1
@@ -0,0 +1,369 @@
+.TH BISON 1 local
+.SH NAME
+bison \- GNU Project parser generator (yacc replacement)
+.SH SYNOPSIS
+.B bison
+[
+.BI \-b " file-prefix"
+] [
+.BI \-\-file-prefix= file-prefix
+] [
+.B \-d
+] [
+.BI \-\-defines= defines-file
+] [
+.B \-g
+] [
+.BI \-\-graph= graph-file
+] [
+.B \-k
+] [
+.B \-\-token-table
+] [
+.B \-l
+] [
+.B \-\-no-lines
+] [
+.B \-n
+] [
+.B \-\-no-parser
+] [
+.BI \-o " outfile"
+] [
+.BI \-\-output-file= outfile
+] [
+.BI \-p " prefix"
+] [
+.BI \-\-name-prefix= prefix
+] [
+.B \-t
+] [
+.B \-\-debug
+] [
+.B \-v
+] [
+.B \-\-verbose
+] [
+.B \-V
+] [
+.B \-\-version
+] [
+.B \-y
+] [
+.B \-\-yacc
+] [
+.B \-h
+] [
+.B \-\-help
+] [
+.B \-\-fixed-output-files
+]
+file
+.br
+.B yacc
+[
+.I "similar options and operands"
+]
+.SH DESCRIPTION
+.I Bison
+is a parser generator in the style of
+.IR yacc (1).
+It should be upwardly compatible with input files designed
+for
+.IR yacc .
+.PP
+Input files should follow the
+.I yacc
+convention of ending in
+.BR .y .
+Unlike
+.IR yacc ,
+the generated files do not have fixed names, but instead use the prefix
+of the input file.
+Moreover, if you need to put
+.I C++
+code in the input file, you can end his name by a C++-like extension
+(.ypp or .y++), then bison will follow your extension to name the
+output file (.cpp or .c++).
+For instance, a grammar description file named
+.B parse.yxx
+would produce the generated parser in a file named
+.BR parse.tab.cxx ,
+instead of
+.IR yacc 's
+.B y.tab.c
+or old
+.I Bison
+version's
+.BR parse.tab.c .
+.PP
+This description of the options that can be given to
+.I bison
+is adapted from the node
+.B Invocation
+in the
+.B bison.texinfo
+manual, which should be taken as authoritative.
+.PP
+.I Bison
+supports both traditional single-letter options and mnemonic long
+option names. Long option names are indicated with
+.B \-\-
+instead of
+.BR \- .
+Abbreviations for option names are allowed as long as they
+are unique. When a long option takes an argument, like
+.BR \-\-file-prefix ,
+connect the option name and the argument with
+.BR = .
+.SS OPTIONS
+.TP
+.BI \-b " file-prefix"
+.br
+.ns
+.TP
+.BI \-\-file-prefix= file-prefix
+Specify a prefix to use for all
+.I bison
+output file names. The names are
+chosen as if the input file were named
+\fIfile-prefix\fP\fB.c\fP.
+.TP
+.B \-d
+.br
+.ns
+Write an extra output file containing macro definitions for the token
+type names defined in the grammar and the semantic value type
+.BR YYSTYPE ,
+as well as a few
+.B extern
+variable declarations.
+.sp
+If the parser output file is named
+.IB name .c
+then this file
+is named
+\fIname\fP\fB.h\fP.
+.sp
+This output file is essential if you wish to put the definition of
+.B yylex
+in a separate source file, because
+.B yylex
+needs to be able to refer to token type codes and the variable
+.BR yylval .
+.TP
+.BI \-\-defines= defines-file
+The behavior of
+.B \-\-defines
+is the same than
+.B \-d
+option.
+The only difference is that it has an optional argument which is
+the name of the output filename.
+.TP
+.BI \-g
+.br
+.ns
+Output a VCG definition of the LALR(1) grammar automaton computed by
+Bison. If the grammar file is
+.BR foo.y
+, the VCG output file will be
+.BR foo.vcg .
+.TP
+.BI \-\-graph= graph-file
+The behavior of
+.BI \-\-graph
+is the same than
+.BI \-g
+option. The only difference is that it has an optional argument which
+is the name of the output graph filename.
+.TP
+.B \-k
+.br
+.ns
+.TP
+.B \-\-token-table
+This switch causes the
+.IB name .tab.c
+output to include a list of
+token names in order by their token numbers; this is defined in the array
+.IR yytname .
+Also generated
+are #defines for
+.IR YYNTOKENS ,
+.IR YYNNTS ,
+.IR YYNRULES ,
+and
+.IR YYNSTATES .
+.TP
+.B \-l
+.br
+.ns
+.TP
+.B \-\-no-lines
+Don't put any
+.B #line
+preprocessor commands in the parser file.
+Ordinarily
+.I bison
+puts them in the parser file so that the C compiler
+and debuggers will associate errors with your source file, the
+grammar file. This option causes them to associate errors with the
+parser file, treating it an independent source file in its own right.
+.TP
+.B \-n
+.br
+.ns
+.TP
+.B \-\-no-parser
+Do not generate the parser code into the output; generate only
+declarations. The generated
+.IB name .tab.c
+file will have only
+constant declarations. In addition, a
+.IB name .act
+file is
+generated containing a switch statement body containing all the
+translated actions.
+.TP
+.BI \-o " outfile"
+.br
+.ns
+.TP
+.BI \-\-output-file= outfile
+Specify the name
+.I outfile
+for the parser file.
+.sp
+The other output files' names are constructed from
+.I outfile
+as described under the
+.B \-v
+and
+.B \-d
+switches.
+.TP
+.BI \-p " prefix"
+.br
+.ns
+.TP
+.BI \-\-name-prefix= prefix
+Rename the external symbols used in the parser so that they start with
+.I prefix
+instead of
+.BR yy .
+The precise list of symbols renamed is
+.BR yyparse ,
+.BR yylex ,
+.BR yyerror ,
+.BR yylval ,
+.BR yychar ,
+and
+.BR yydebug .
+.sp
+For example, if you use
+.BR "\-p c" ,
+the names become
+.BR cparse ,
+.BR clex ,
+and so on.
+.TP
+.B \-t
+.br
+.ns
+.TP
+.B \-\-debug
+In the parser file, define the macro
+.B YYDEBUG
+to 1 if it is not already defined,
+so that the debugging facilities are compiled.
+.TP
+.B \-v
+.br
+.ns
+.TP
+.B \-\-verbose
+Write an extra output file containing verbose descriptions of the
+parser states and what is done for each type of look-ahead token in
+that state.
+.sp
+This file also describes all the conflicts, both those resolved by
+operator precedence and the unresolved ones.
+.sp
+The file's name is made by removing
+.B .tab.c
+or
+.B .c
+from the parser output file name, and adding
+.B .output
+instead.
+.sp
+Therefore, if the input file is
+.BR foo.y ,
+then the parser file is called
+.B foo.tab.c
+by default. As a consequence, the verbose
+output file is called
+.BR foo.output .
+.TP
+.B \-V
+.br
+.ns
+.TP
+.B \-\-version
+Print the version number of
+.I bison
+and exit.
+.TP
+.B \-h
+.br
+.ns
+.TP
+.B \-\-help
+Print a summary of the options to
+.I bison
+and exit.
+.TP
+.B \-y
+.br
+.ns
+.TP
+.B \-\-yacc
+.br
+.ns
+.TP
+.B \-\-fixed-output-files
+Equivalent to
+.BR "\-o y.tab.c" ;
+the parser output file is called
+.BR y.tab.c ,
+and the other outputs are called
+.B y.output
+and
+.BR y.tab.h .
+The purpose of this switch is to imitate
+.IR yacc 's
+output file name conventions.
+Thus, the following shell script can substitute for
+.I yacc
+and is often installed as
+.IR yacc :
+.sp
+.RS
+.ft B
+bison \-y "$@"
+.ft R
+.sp
+.RE
+.SH SEE ALSO
+.IR yacc (1)
+.br
+The
+.IR "Bison Reference Manual" ,
+included as the file
+.B bison.texinfo
+in the
+.I bison
+source distribution.
+.SH DIAGNOSTICS
+Self explanatory.
diff --git a/doc/bison.info b/doc/bison.info
new file mode 100644
index 0000000..7907515
--- /dev/null
+++ b/doc/bison.info
Binary files differ
diff --git a/doc/bison.texinfo b/doc/bison.texinfo
new file mode 100644
index 0000000..6c67b59
--- /dev/null
+++ b/doc/bison.texinfo
@@ -0,0 +1,8715 @@
+\input texinfo @c -*-texinfo-*-
+@comment %**start of header
+@setfilename bison.info
+@include version.texi
+@settitle Bison @value{VERSION}
+@setchapternewpage odd
+
+@finalout
+
+@c SMALL BOOK version
+@c This edition has been formatted so that you can format and print it in
+@c the smallbook format.
+@c @smallbook
+
+@c Set following if you want to document %default-prec and %no-default-prec.
+@c This feature is experimental and may change in future Bison versions.
+@c @set defaultprec
+
+@ifnotinfo
+@syncodeindex fn cp
+@syncodeindex vr cp
+@syncodeindex tp cp
+@end ifnotinfo
+@ifinfo
+@synindex fn cp
+@synindex vr cp
+@synindex tp cp
+@end ifinfo
+@comment %**end of header
+
+@copying
+
+This manual is for @acronym{GNU} Bison (version @value{VERSION},
+@value{UPDATED}), the @acronym{GNU} parser generator.
+
+Copyright @copyright{} 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1998,
+1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+@quotation
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the @acronym{GNU} Free Documentation License,
+Version 1.2 or any later version published by the Free Software
+Foundation; with no Invariant Sections, with the Front-Cover texts
+being ``A @acronym{GNU} Manual,'' and with the Back-Cover Texts as in
+(a) below. A copy of the license is included in the section entitled
+``@acronym{GNU} Free Documentation License.''
+
+(a) The @acronym{FSF}'s Back-Cover Text is: ``You have freedom to copy
+and modify this @acronym{GNU} Manual, like @acronym{GNU} software.
+Copies published by the Free Software Foundation raise funds for
+@acronym{GNU} development.''
+@end quotation
+@end copying
+
+@dircategory Software development
+@direntry
+* bison: (bison). @acronym{GNU} parser generator (Yacc replacement).
+@end direntry
+
+@titlepage
+@title Bison
+@subtitle The Yacc-compatible Parser Generator
+@subtitle @value{UPDATED}, Bison Version @value{VERSION}
+
+@author by Charles Donnelly and Richard Stallman
+
+@page
+@vskip 0pt plus 1filll
+@insertcopying
+@sp 2
+Published by the Free Software Foundation @*
+51 Franklin Street, Fifth Floor @*
+Boston, MA 02110-1301 USA @*
+Printed copies are available from the Free Software Foundation.@*
+@acronym{ISBN} 1-882114-44-2
+@sp 2
+Cover art by Etienne Suvasa.
+@end titlepage
+
+@contents
+
+@ifnottex
+@node Top
+@top Bison
+@insertcopying
+@end ifnottex
+
+@menu
+* Introduction::
+* Conditions::
+* Copying:: The @acronym{GNU} General Public License says
+ how you can copy and share Bison
+
+Tutorial sections:
+* Concepts:: Basic concepts for understanding Bison.
+* Examples:: Three simple explained examples of using Bison.
+
+Reference sections:
+* Grammar File:: Writing Bison declarations and rules.
+* Interface:: C-language interface to the parser function @code{yyparse}.
+* Algorithm:: How the Bison parser works at run-time.
+* Error Recovery:: Writing rules for error recovery.
+* Context Dependency:: What to do if your language syntax is too
+ messy for Bison to handle straightforwardly.
+* Debugging:: Understanding or debugging Bison parsers.
+* Invocation:: How to run Bison (to produce the parser source file).
+* C++ Language Interface:: Creating C++ parser objects.
+* FAQ:: Frequently Asked Questions
+* Table of Symbols:: All the keywords of the Bison language are explained.
+* Glossary:: Basic concepts are explained.
+* Copying This Manual:: License for copying this manual.
+* Index:: Cross-references to the text.
+
+@detailmenu
+ --- The Detailed Node Listing ---
+
+The Concepts of Bison
+
+* Language and Grammar:: Languages and context-free grammars,
+ as mathematical ideas.
+* Grammar in Bison:: How we represent grammars for Bison's sake.
+* Semantic Values:: Each token or syntactic grouping can have
+ a semantic value (the value of an integer,
+ the name of an identifier, etc.).
+* Semantic Actions:: Each rule can have an action containing C code.
+* GLR Parsers:: Writing parsers for general context-free languages.
+* Locations Overview:: Tracking Locations.
+* Bison Parser:: What are Bison's input and output,
+ how is the output used?
+* Stages:: Stages in writing and running Bison grammars.
+* Grammar Layout:: Overall structure of a Bison grammar file.
+
+Writing @acronym{GLR} Parsers
+
+* Simple GLR Parsers:: Using @acronym{GLR} parsers on unambiguous grammars.
+* Merging GLR Parses:: Using @acronym{GLR} parsers to resolve ambiguities.
+* GLR Semantic Actions:: Deferred semantic actions have special concerns.
+* Compiler Requirements:: @acronym{GLR} parsers require a modern C compiler.
+
+Examples
+
+* RPN Calc:: Reverse polish notation calculator;
+ a first example with no operator precedence.
+* Infix Calc:: Infix (algebraic) notation calculator.
+ Operator precedence is introduced.
+* Simple Error Recovery:: Continuing after syntax errors.
+* Location Tracking Calc:: Demonstrating the use of @@@var{n} and @@$.
+* Multi-function Calc:: Calculator with memory and trig functions.
+ It uses multiple data-types for semantic values.
+* Exercises:: Ideas for improving the multi-function calculator.
+
+Reverse Polish Notation Calculator
+
+* Decls: Rpcalc Decls. Prologue (declarations) for rpcalc.
+* Rules: Rpcalc Rules. Grammar Rules for rpcalc, with explanation.
+* Lexer: Rpcalc Lexer. The lexical analyzer.
+* Main: Rpcalc Main. The controlling function.
+* Error: Rpcalc Error. The error reporting function.
+* Gen: Rpcalc Gen. Running Bison on the grammar file.
+* Comp: Rpcalc Compile. Run the C compiler on the output code.
+
+Grammar Rules for @code{rpcalc}
+
+* Rpcalc Input::
+* Rpcalc Line::
+* Rpcalc Expr::
+
+Location Tracking Calculator: @code{ltcalc}
+
+* Decls: Ltcalc Decls. Bison and C declarations for ltcalc.
+* Rules: Ltcalc Rules. Grammar rules for ltcalc, with explanations.
+* Lexer: Ltcalc Lexer. The lexical analyzer.
+
+Multi-Function Calculator: @code{mfcalc}
+
+* Decl: Mfcalc Decl. Bison declarations for multi-function calculator.
+* Rules: Mfcalc Rules. Grammar rules for the calculator.
+* Symtab: Mfcalc Symtab. Symbol table management subroutines.
+
+Bison Grammar Files
+
+* Grammar Outline:: Overall layout of the grammar file.
+* Symbols:: Terminal and nonterminal symbols.
+* Rules:: How to write grammar rules.
+* Recursion:: Writing recursive rules.
+* Semantics:: Semantic values and actions.
+* Locations:: Locations and actions.
+* Declarations:: All kinds of Bison declarations are described here.
+* Multiple Parsers:: Putting more than one Bison parser in one program.
+
+Outline of a Bison Grammar
+
+* Prologue:: Syntax and usage of the prologue.
+* Bison Declarations:: Syntax and usage of the Bison declarations section.
+* Grammar Rules:: Syntax and usage of the grammar rules section.
+* Epilogue:: Syntax and usage of the epilogue.
+
+Defining Language Semantics
+
+* Value Type:: Specifying one data type for all semantic values.
+* Multiple Types:: Specifying several alternative data types.
+* Actions:: An action is the semantic definition of a grammar rule.
+* Action Types:: Specifying data types for actions to operate on.
+* Mid-Rule Actions:: Most actions go at the end of a rule.
+ This says when, why and how to use the exceptional
+ action in the middle of a rule.
+
+Tracking Locations
+
+* Location Type:: Specifying a data type for locations.
+* Actions and Locations:: Using locations in actions.
+* Location Default Action:: Defining a general way to compute locations.
+
+Bison Declarations
+
+* Require Decl:: Requiring a Bison version.
+* Token Decl:: Declaring terminal symbols.
+* Precedence Decl:: Declaring terminals with precedence and associativity.
+* Union Decl:: Declaring the set of all semantic value types.
+* Type Decl:: Declaring the choice of type for a nonterminal symbol.
+* Initial Action Decl:: Code run before parsing starts.
+* Destructor Decl:: Declaring how symbols are freed.
+* Expect Decl:: Suppressing warnings about parsing conflicts.
+* Start Decl:: Specifying the start symbol.
+* Pure Decl:: Requesting a reentrant parser.
+* Decl Summary:: Table of all Bison declarations.
+
+Parser C-Language Interface
+
+* Parser Function:: How to call @code{yyparse} and what it returns.
+* Lexical:: You must supply a function @code{yylex}
+ which reads tokens.
+* Error Reporting:: You must supply a function @code{yyerror}.
+* Action Features:: Special features for use in actions.
+* Internationalization:: How to let the parser speak in the user's
+ native language.
+
+The Lexical Analyzer Function @code{yylex}
+
+* Calling Convention:: How @code{yyparse} calls @code{yylex}.
+* Token Values:: How @code{yylex} must return the semantic value
+ of the token it has read.
+* Token Locations:: How @code{yylex} must return the text location
+ (line number, etc.) of the token, if the
+ actions want that.
+* Pure Calling:: How the calling convention differs
+ in a pure parser (@pxref{Pure Decl, ,A Pure (Reentrant) Parser}).
+
+The Bison Parser Algorithm
+
+* Look-Ahead:: Parser looks one token ahead when deciding what to do.
+* Shift/Reduce:: Conflicts: when either shifting or reduction is valid.
+* Precedence:: Operator precedence works by resolving conflicts.
+* Contextual Precedence:: When an operator's precedence depends on context.
+* Parser States:: The parser is a finite-state-machine with stack.
+* Reduce/Reduce:: When two rules are applicable in the same situation.
+* Mystery Conflicts:: Reduce/reduce conflicts that look unjustified.
+* Generalized LR Parsing:: Parsing arbitrary context-free grammars.
+* Memory Management:: What happens when memory is exhausted. How to avoid it.
+
+Operator Precedence
+
+* Why Precedence:: An example showing why precedence is needed.
+* Using Precedence:: How to specify precedence in Bison grammars.
+* Precedence Examples:: How these features are used in the previous example.
+* How Precedence:: How they work.
+
+Handling Context Dependencies
+
+* Semantic Tokens:: Token parsing can depend on the semantic context.
+* Lexical Tie-ins:: Token parsing can depend on the syntactic context.
+* Tie-in Recovery:: Lexical tie-ins have implications for how
+ error recovery rules must be written.
+
+Debugging Your Parser
+
+* Understanding:: Understanding the structure of your parser.
+* Tracing:: Tracing the execution of your parser.
+
+Invoking Bison
+
+* Bison Options:: All the options described in detail,
+ in alphabetical order by short options.
+* Option Cross Key:: Alphabetical list of long options.
+* Yacc Library:: Yacc-compatible @code{yylex} and @code{main}.
+
+C++ Language Interface
+
+* C++ Parsers:: The interface to generate C++ parser classes
+* A Complete C++ Example:: Demonstrating their use
+
+C++ Parsers
+
+* C++ Bison Interface:: Asking for C++ parser generation
+* C++ Semantic Values:: %union vs. C++
+* C++ Location Values:: The position and location classes
+* C++ Parser Interface:: Instantiating and running the parser
+* C++ Scanner Interface:: Exchanges between yylex and parse
+
+A Complete C++ Example
+
+* Calc++ --- C++ Calculator:: The specifications
+* Calc++ Parsing Driver:: An active parsing context
+* Calc++ Parser:: A parser class
+* Calc++ Scanner:: A pure C++ Flex scanner
+* Calc++ Top Level:: Conducting the band
+
+Frequently Asked Questions
+
+* Memory Exhausted:: Breaking the Stack Limits
+* How Can I Reset the Parser:: @code{yyparse} Keeps some State
+* Strings are Destroyed:: @code{yylval} Loses Track of Strings
+* Implementing Gotos/Loops:: Control Flow in the Calculator
+* Multiple start-symbols:: Factoring closely related grammars
+* Secure? Conform?:: Is Bison @acronym{POSIX} safe?
+* I can't build Bison:: Troubleshooting
+* Where can I find help?:: Troubleshouting
+* Bug Reports:: Troublereporting
+* Other Languages:: Parsers in Java and others
+* Beta Testing:: Experimenting development versions
+* Mailing Lists:: Meeting other Bison users
+
+Copying This Manual
+
+* GNU Free Documentation License:: License for copying this manual.
+
+@end detailmenu
+@end menu
+
+@node Introduction
+@unnumbered Introduction
+@cindex introduction
+
+@dfn{Bison} is a general-purpose parser generator that converts an
+annotated context-free grammar into an @acronym{LALR}(1) or
+@acronym{GLR} parser for that grammar. Once you are proficient with
+Bison, you can use it to develop a wide range of language parsers, from those
+used in simple desk calculators to complex programming languages.
+
+Bison is upward compatible with Yacc: all properly-written Yacc grammars
+ought to work with Bison with no change. Anyone familiar with Yacc
+should be able to use Bison with little trouble. You need to be fluent in
+C or C++ programming in order to use Bison or to understand this manual.
+
+We begin with tutorial chapters that explain the basic concepts of using
+Bison and show three explained examples, each building on the last. If you
+don't know Bison or Yacc, start by reading these chapters. Reference
+chapters follow which describe specific aspects of Bison in detail.
+
+Bison was written primarily by Robert Corbett; Richard Stallman made it
+Yacc-compatible. Wilfred Hansen of Carnegie Mellon University added
+multi-character string literals and other features.
+
+This edition corresponds to version @value{VERSION} of Bison.
+
+@node Conditions
+@unnumbered Conditions for Using Bison
+
+The distribution terms for Bison-generated parsers permit using the
+parsers in nonfree programs. Before Bison version 2.2, these extra
+permissions applied only when Bison was generating @acronym{LALR}(1)
+parsers in C@. And before Bison version 1.24, Bison-generated
+parsers could be used only in programs that were free software.
+
+The other @acronym{GNU} programming tools, such as the @acronym{GNU} C
+compiler, have never
+had such a requirement. They could always be used for nonfree
+software. The reason Bison was different was not due to a special
+policy decision; it resulted from applying the usual General Public
+License to all of the Bison source code.
+
+The output of the Bison utility---the Bison parser file---contains a
+verbatim copy of a sizable piece of Bison, which is the code for the
+parser's implementation. (The actions from your grammar are inserted
+into this implementation at one point, but most of the rest of the
+implementation is not changed.) When we applied the @acronym{GPL}
+terms to the skeleton code for the parser's implementation,
+the effect was to restrict the use of Bison output to free software.
+
+We didn't change the terms because of sympathy for people who want to
+make software proprietary. @strong{Software should be free.} But we
+concluded that limiting Bison's use to free software was doing little to
+encourage people to make other software free. So we decided to make the
+practical conditions for using Bison match the practical conditions for
+using the other @acronym{GNU} tools.
+
+This exception applies when Bison is generating code for a parser.
+You can tell whether the exception applies to a Bison output file by
+inspecting the file for text beginning with ``As a special
+exception@dots{}''. The text spells out the exact terms of the
+exception.
+
+@include gpl.texi
+
+@node Concepts
+@chapter The Concepts of Bison
+
+This chapter introduces many of the basic concepts without which the
+details of Bison will not make sense. If you do not already know how to
+use Bison or Yacc, we suggest you start by reading this chapter carefully.
+
+@menu
+* Language and Grammar:: Languages and context-free grammars,
+ as mathematical ideas.
+* Grammar in Bison:: How we represent grammars for Bison's sake.
+* Semantic Values:: Each token or syntactic grouping can have
+ a semantic value (the value of an integer,
+ the name of an identifier, etc.).
+* Semantic Actions:: Each rule can have an action containing C code.
+* GLR Parsers:: Writing parsers for general context-free languages.
+* Locations Overview:: Tracking Locations.
+* Bison Parser:: What are Bison's input and output,
+ how is the output used?
+* Stages:: Stages in writing and running Bison grammars.
+* Grammar Layout:: Overall structure of a Bison grammar file.
+@end menu
+
+@node Language and Grammar
+@section Languages and Context-Free Grammars
+
+@cindex context-free grammar
+@cindex grammar, context-free
+In order for Bison to parse a language, it must be described by a
+@dfn{context-free grammar}. This means that you specify one or more
+@dfn{syntactic groupings} and give rules for constructing them from their
+parts. For example, in the C language, one kind of grouping is called an
+`expression'. One rule for making an expression might be, ``An expression
+can be made of a minus sign and another expression''. Another would be,
+``An expression can be an integer''. As you can see, rules are often
+recursive, but there must be at least one rule which leads out of the
+recursion.
+
+@cindex @acronym{BNF}
+@cindex Backus-Naur form
+The most common formal system for presenting such rules for humans to read
+is @dfn{Backus-Naur Form} or ``@acronym{BNF}'', which was developed in
+order to specify the language Algol 60. Any grammar expressed in
+@acronym{BNF} is a context-free grammar. The input to Bison is
+essentially machine-readable @acronym{BNF}.
+
+@cindex @acronym{LALR}(1) grammars
+@cindex @acronym{LR}(1) grammars
+There are various important subclasses of context-free grammar. Although it
+can handle almost all context-free grammars, Bison is optimized for what
+are called @acronym{LALR}(1) grammars.
+In brief, in these grammars, it must be possible to
+tell how to parse any portion of an input string with just a single
+token of look-ahead. Strictly speaking, that is a description of an
+@acronym{LR}(1) grammar, and @acronym{LALR}(1) involves additional
+restrictions that are
+hard to explain simply; but it is rare in actual practice to find an
+@acronym{LR}(1) grammar that fails to be @acronym{LALR}(1).
+@xref{Mystery Conflicts, ,Mysterious Reduce/Reduce Conflicts}, for
+more information on this.
+
+@cindex @acronym{GLR} parsing
+@cindex generalized @acronym{LR} (@acronym{GLR}) parsing
+@cindex ambiguous grammars
+@cindex nondeterministic parsing
+
+Parsers for @acronym{LALR}(1) grammars are @dfn{deterministic}, meaning
+roughly that the next grammar rule to apply at any point in the input is
+uniquely determined by the preceding input and a fixed, finite portion
+(called a @dfn{look-ahead}) of the remaining input. A context-free
+grammar can be @dfn{ambiguous}, meaning that there are multiple ways to
+apply the grammar rules to get the same inputs. Even unambiguous
+grammars can be @dfn{nondeterministic}, meaning that no fixed
+look-ahead always suffices to determine the next grammar rule to apply.
+With the proper declarations, Bison is also able to parse these more
+general context-free grammars, using a technique known as @acronym{GLR}
+parsing (for Generalized @acronym{LR}). Bison's @acronym{GLR} parsers
+are able to handle any context-free grammar for which the number of
+possible parses of any given string is finite.
+
+@cindex symbols (abstract)
+@cindex token
+@cindex syntactic grouping
+@cindex grouping, syntactic
+In the formal grammatical rules for a language, each kind of syntactic
+unit or grouping is named by a @dfn{symbol}. Those which are built by
+grouping smaller constructs according to grammatical rules are called
+@dfn{nonterminal symbols}; those which can't be subdivided are called
+@dfn{terminal symbols} or @dfn{token types}. We call a piece of input
+corresponding to a single terminal symbol a @dfn{token}, and a piece
+corresponding to a single nonterminal symbol a @dfn{grouping}.
+
+We can use the C language as an example of what symbols, terminal and
+nonterminal, mean. The tokens of C are identifiers, constants (numeric
+and string), and the various keywords, arithmetic operators and
+punctuation marks. So the terminal symbols of a grammar for C include
+`identifier', `number', `string', plus one symbol for each keyword,
+operator or punctuation mark: `if', `return', `const', `static', `int',
+`char', `plus-sign', `open-brace', `close-brace', `comma' and many more.
+(These tokens can be subdivided into characters, but that is a matter of
+lexicography, not grammar.)
+
+Here is a simple C function subdivided into tokens:
+
+@ifinfo
+@example
+int /* @r{keyword `int'} */
+square (int x) /* @r{identifier, open-paren, keyword `int',}
+ @r{identifier, close-paren} */
+@{ /* @r{open-brace} */
+ return x * x; /* @r{keyword `return', identifier, asterisk,}
+ @r{identifier, semicolon} */
+@} /* @r{close-brace} */
+@end example
+@end ifinfo
+@ifnotinfo
+@example
+int /* @r{keyword `int'} */
+square (int x) /* @r{identifier, open-paren, keyword `int', identifier, close-paren} */
+@{ /* @r{open-brace} */
+ return x * x; /* @r{keyword `return', identifier, asterisk, identifier, semicolon} */
+@} /* @r{close-brace} */
+@end example
+@end ifnotinfo
+
+The syntactic groupings of C include the expression, the statement, the
+declaration, and the function definition. These are represented in the
+grammar of C by nonterminal symbols `expression', `statement',
+`declaration' and `function definition'. The full grammar uses dozens of
+additional language constructs, each with its own nonterminal symbol, in
+order to express the meanings of these four. The example above is a
+function definition; it contains one declaration, and one statement. In
+the statement, each @samp{x} is an expression and so is @samp{x * x}.
+
+Each nonterminal symbol must have grammatical rules showing how it is made
+out of simpler constructs. For example, one kind of C statement is the
+@code{return} statement; this would be described with a grammar rule which
+reads informally as follows:
+
+@quotation
+A `statement' can be made of a `return' keyword, an `expression' and a
+`semicolon'.
+@end quotation
+
+@noindent
+There would be many other rules for `statement', one for each kind of
+statement in C.
+
+@cindex start symbol
+One nonterminal symbol must be distinguished as the special one which
+defines a complete utterance in the language. It is called the @dfn{start
+symbol}. In a compiler, this means a complete input program. In the C
+language, the nonterminal symbol `sequence of definitions and declarations'
+plays this role.
+
+For example, @samp{1 + 2} is a valid C expression---a valid part of a C
+program---but it is not valid as an @emph{entire} C program. In the
+context-free grammar of C, this follows from the fact that `expression' is
+not the start symbol.
+
+The Bison parser reads a sequence of tokens as its input, and groups the
+tokens using the grammar rules. If the input is valid, the end result is
+that the entire token sequence reduces to a single grouping whose symbol is
+the grammar's start symbol. If we use a grammar for C, the entire input
+must be a `sequence of definitions and declarations'. If not, the parser
+reports a syntax error.
+
+@node Grammar in Bison
+@section From Formal Rules to Bison Input
+@cindex Bison grammar
+@cindex grammar, Bison
+@cindex formal grammar
+
+A formal grammar is a mathematical construct. To define the language
+for Bison, you must write a file expressing the grammar in Bison syntax:
+a @dfn{Bison grammar} file. @xref{Grammar File, ,Bison Grammar Files}.
+
+A nonterminal symbol in the formal grammar is represented in Bison input
+as an identifier, like an identifier in C@. By convention, it should be
+in lower case, such as @code{expr}, @code{stmt} or @code{declaration}.
+
+The Bison representation for a terminal symbol is also called a @dfn{token
+type}. Token types as well can be represented as C-like identifiers. By
+convention, these identifiers should be upper case to distinguish them from
+nonterminals: for example, @code{INTEGER}, @code{IDENTIFIER}, @code{IF} or
+@code{RETURN}. A terminal symbol that stands for a particular keyword in
+the language should be named after that keyword converted to upper case.
+The terminal symbol @code{error} is reserved for error recovery.
+@xref{Symbols}.
+
+A terminal symbol can also be represented as a character literal, just like
+a C character constant. You should do this whenever a token is just a
+single character (parenthesis, plus-sign, etc.): use that same character in
+a literal as the terminal symbol for that token.
+
+A third way to represent a terminal symbol is with a C string constant
+containing several characters. @xref{Symbols}, for more information.
+
+The grammar rules also have an expression in Bison syntax. For example,
+here is the Bison rule for a C @code{return} statement. The semicolon in
+quotes is a literal character token, representing part of the C syntax for
+the statement; the naked semicolon, and the colon, are Bison punctuation
+used in every rule.
+
+@example
+stmt: RETURN expr ';'
+ ;
+@end example
+
+@noindent
+@xref{Rules, ,Syntax of Grammar Rules}.
+
+@node Semantic Values
+@section Semantic Values
+@cindex semantic value
+@cindex value, semantic
+
+A formal grammar selects tokens only by their classifications: for example,
+if a rule mentions the terminal symbol `integer constant', it means that
+@emph{any} integer constant is grammatically valid in that position. The
+precise value of the constant is irrelevant to how to parse the input: if
+@samp{x+4} is grammatical then @samp{x+1} or @samp{x+3989} is equally
+grammatical.
+
+But the precise value is very important for what the input means once it is
+parsed. A compiler is useless if it fails to distinguish between 4, 1 and
+3989 as constants in the program! Therefore, each token in a Bison grammar
+has both a token type and a @dfn{semantic value}. @xref{Semantics,
+,Defining Language Semantics},
+for details.
+
+The token type is a terminal symbol defined in the grammar, such as
+@code{INTEGER}, @code{IDENTIFIER} or @code{','}. It tells everything
+you need to know to decide where the token may validly appear and how to
+group it with other tokens. The grammar rules know nothing about tokens
+except their types.
+
+The semantic value has all the rest of the information about the
+meaning of the token, such as the value of an integer, or the name of an
+identifier. (A token such as @code{','} which is just punctuation doesn't
+need to have any semantic value.)
+
+For example, an input token might be classified as token type
+@code{INTEGER} and have the semantic value 4. Another input token might
+have the same token type @code{INTEGER} but value 3989. When a grammar
+rule says that @code{INTEGER} is allowed, either of these tokens is
+acceptable because each is an @code{INTEGER}. When the parser accepts the
+token, it keeps track of the token's semantic value.
+
+Each grouping can also have a semantic value as well as its nonterminal
+symbol. For example, in a calculator, an expression typically has a
+semantic value that is a number. In a compiler for a programming
+language, an expression typically has a semantic value that is a tree
+structure describing the meaning of the expression.
+
+@node Semantic Actions
+@section Semantic Actions
+@cindex semantic actions
+@cindex actions, semantic
+
+In order to be useful, a program must do more than parse input; it must
+also produce some output based on the input. In a Bison grammar, a grammar
+rule can have an @dfn{action} made up of C statements. Each time the
+parser recognizes a match for that rule, the action is executed.
+@xref{Actions}.
+
+Most of the time, the purpose of an action is to compute the semantic value
+of the whole construct from the semantic values of its parts. For example,
+suppose we have a rule which says an expression can be the sum of two
+expressions. When the parser recognizes such a sum, each of the
+subexpressions has a semantic value which describes how it was built up.
+The action for this rule should create a similar sort of value for the
+newly recognized larger expression.
+
+For example, here is a rule that says an expression can be the sum of
+two subexpressions:
+
+@example
+expr: expr '+' expr @{ $$ = $1 + $3; @}
+ ;
+@end example
+
+@noindent
+The action says how to produce the semantic value of the sum expression
+from the values of the two subexpressions.
+
+@node GLR Parsers
+@section Writing @acronym{GLR} Parsers
+@cindex @acronym{GLR} parsing
+@cindex generalized @acronym{LR} (@acronym{GLR}) parsing
+@findex %glr-parser
+@cindex conflicts
+@cindex shift/reduce conflicts
+@cindex reduce/reduce conflicts
+
+In some grammars, Bison's standard
+@acronym{LALR}(1) parsing algorithm cannot decide whether to apply a
+certain grammar rule at a given point. That is, it may not be able to
+decide (on the basis of the input read so far) which of two possible
+reductions (applications of a grammar rule) applies, or whether to apply
+a reduction or read more of the input and apply a reduction later in the
+input. These are known respectively as @dfn{reduce/reduce} conflicts
+(@pxref{Reduce/Reduce}), and @dfn{shift/reduce} conflicts
+(@pxref{Shift/Reduce}).
+
+To use a grammar that is not easily modified to be @acronym{LALR}(1), a
+more general parsing algorithm is sometimes necessary. If you include
+@code{%glr-parser} among the Bison declarations in your file
+(@pxref{Grammar Outline}), the result is a Generalized @acronym{LR}
+(@acronym{GLR}) parser. These parsers handle Bison grammars that
+contain no unresolved conflicts (i.e., after applying precedence
+declarations) identically to @acronym{LALR}(1) parsers. However, when
+faced with unresolved shift/reduce and reduce/reduce conflicts,
+@acronym{GLR} parsers use the simple expedient of doing both,
+effectively cloning the parser to follow both possibilities. Each of
+the resulting parsers can again split, so that at any given time, there
+can be any number of possible parses being explored. The parsers
+proceed in lockstep; that is, all of them consume (shift) a given input
+symbol before any of them proceed to the next. Each of the cloned
+parsers eventually meets one of two possible fates: either it runs into
+a parsing error, in which case it simply vanishes, or it merges with
+another parser, because the two of them have reduced the input to an
+identical set of symbols.
+
+During the time that there are multiple parsers, semantic actions are
+recorded, but not performed. When a parser disappears, its recorded
+semantic actions disappear as well, and are never performed. When a
+reduction makes two parsers identical, causing them to merge, Bison
+records both sets of semantic actions. Whenever the last two parsers
+merge, reverting to the single-parser case, Bison resolves all the
+outstanding actions either by precedences given to the grammar rules
+involved, or by performing both actions, and then calling a designated
+user-defined function on the resulting values to produce an arbitrary
+merged result.
+
+@menu
+* Simple GLR Parsers:: Using @acronym{GLR} parsers on unambiguous grammars.
+* Merging GLR Parses:: Using @acronym{GLR} parsers to resolve ambiguities.
+* GLR Semantic Actions:: Deferred semantic actions have special concerns.
+* Compiler Requirements:: @acronym{GLR} parsers require a modern C compiler.
+@end menu
+
+@node Simple GLR Parsers
+@subsection Using @acronym{GLR} on Unambiguous Grammars
+@cindex @acronym{GLR} parsing, unambiguous grammars
+@cindex generalized @acronym{LR} (@acronym{GLR}) parsing, unambiguous grammars
+@findex %glr-parser
+@findex %expect-rr
+@cindex conflicts
+@cindex reduce/reduce conflicts
+@cindex shift/reduce conflicts
+
+In the simplest cases, you can use the @acronym{GLR} algorithm
+to parse grammars that are unambiguous, but fail to be @acronym{LALR}(1).
+Such grammars typically require more than one symbol of look-ahead,
+or (in rare cases) fall into the category of grammars in which the
+@acronym{LALR}(1) algorithm throws away too much information (they are in
+@acronym{LR}(1), but not @acronym{LALR}(1), @ref{Mystery Conflicts}).
+
+Consider a problem that
+arises in the declaration of enumerated and subrange types in the
+programming language Pascal. Here are some examples:
+
+@example
+type subrange = lo .. hi;
+type enum = (a, b, c);
+@end example
+
+@noindent
+The original language standard allows only numeric
+literals and constant identifiers for the subrange bounds (@samp{lo}
+and @samp{hi}), but Extended Pascal (@acronym{ISO}/@acronym{IEC}
+10206) and many other
+Pascal implementations allow arbitrary expressions there. This gives
+rise to the following situation, containing a superfluous pair of
+parentheses:
+
+@example
+type subrange = (a) .. b;
+@end example
+
+@noindent
+Compare this to the following declaration of an enumerated
+type with only one value:
+
+@example
+type enum = (a);
+@end example
+
+@noindent
+(These declarations are contrived, but they are syntactically
+valid, and more-complicated cases can come up in practical programs.)
+
+These two declarations look identical until the @samp{..} token.
+With normal @acronym{LALR}(1) one-token look-ahead it is not
+possible to decide between the two forms when the identifier
+@samp{a} is parsed. It is, however, desirable
+for a parser to decide this, since in the latter case
+@samp{a} must become a new identifier to represent the enumeration
+value, while in the former case @samp{a} must be evaluated with its
+current meaning, which may be a constant or even a function call.
+
+You could parse @samp{(a)} as an ``unspecified identifier in parentheses'',
+to be resolved later, but this typically requires substantial
+contortions in both semantic actions and large parts of the
+grammar, where the parentheses are nested in the recursive rules for
+expressions.
+
+You might think of using the lexer to distinguish between the two
+forms by returning different tokens for currently defined and
+undefined identifiers. But if these declarations occur in a local
+scope, and @samp{a} is defined in an outer scope, then both forms
+are possible---either locally redefining @samp{a}, or using the
+value of @samp{a} from the outer scope. So this approach cannot
+work.
+
+A simple solution to this problem is to declare the parser to
+use the @acronym{GLR} algorithm.
+When the @acronym{GLR} parser reaches the critical state, it
+merely splits into two branches and pursues both syntax rules
+simultaneously. Sooner or later, one of them runs into a parsing
+error. If there is a @samp{..} token before the next
+@samp{;}, the rule for enumerated types fails since it cannot
+accept @samp{..} anywhere; otherwise, the subrange type rule
+fails since it requires a @samp{..} token. So one of the branches
+fails silently, and the other one continues normally, performing
+all the intermediate actions that were postponed during the split.
+
+If the input is syntactically incorrect, both branches fail and the parser
+reports a syntax error as usual.
+
+The effect of all this is that the parser seems to ``guess'' the
+correct branch to take, or in other words, it seems to use more
+look-ahead than the underlying @acronym{LALR}(1) algorithm actually allows
+for. In this example, @acronym{LALR}(2) would suffice, but also some cases
+that are not @acronym{LALR}(@math{k}) for any @math{k} can be handled this way.
+
+In general, a @acronym{GLR} parser can take quadratic or cubic worst-case time,
+and the current Bison parser even takes exponential time and space
+for some grammars. In practice, this rarely happens, and for many
+grammars it is possible to prove that it cannot happen.
+The present example contains only one conflict between two
+rules, and the type-declaration context containing the conflict
+cannot be nested. So the number of
+branches that can exist at any time is limited by the constant 2,
+and the parsing time is still linear.
+
+Here is a Bison grammar corresponding to the example above. It
+parses a vastly simplified form of Pascal type declarations.
+
+@example
+%token TYPE DOTDOT ID
+
+@group
+%left '+' '-'
+%left '*' '/'
+@end group
+
+%%
+
+@group
+type_decl : TYPE ID '=' type ';'
+ ;
+@end group
+
+@group
+type : '(' id_list ')'
+ | expr DOTDOT expr
+ ;
+@end group
+
+@group
+id_list : ID
+ | id_list ',' ID
+ ;
+@end group
+
+@group
+expr : '(' expr ')'
+ | expr '+' expr
+ | expr '-' expr
+ | expr '*' expr
+ | expr '/' expr
+ | ID
+ ;
+@end group
+@end example
+
+When used as a normal @acronym{LALR}(1) grammar, Bison correctly complains
+about one reduce/reduce conflict. In the conflicting situation the
+parser chooses one of the alternatives, arbitrarily the one
+declared first. Therefore the following correct input is not
+recognized:
+
+@example
+type t = (a) .. b;
+@end example
+
+The parser can be turned into a @acronym{GLR} parser, while also telling Bison
+to be silent about the one known reduce/reduce conflict, by
+adding these two declarations to the Bison input file (before the first
+@samp{%%}):
+
+@example
+%glr-parser
+%expect-rr 1
+@end example
+
+@noindent
+No change in the grammar itself is required. Now the
+parser recognizes all valid declarations, according to the
+limited syntax above, transparently. In fact, the user does not even
+notice when the parser splits.
+
+So here we have a case where we can use the benefits of @acronym{GLR},
+almost without disadvantages. Even in simple cases like this, however,
+there are at least two potential problems to beware. First, always
+analyze the conflicts reported by Bison to make sure that @acronym{GLR}
+splitting is only done where it is intended. A @acronym{GLR} parser
+splitting inadvertently may cause problems less obvious than an
+@acronym{LALR} parser statically choosing the wrong alternative in a
+conflict. Second, consider interactions with the lexer (@pxref{Semantic
+Tokens}) with great care. Since a split parser consumes tokens without
+performing any actions during the split, the lexer cannot obtain
+information via parser actions. Some cases of lexer interactions can be
+eliminated by using @acronym{GLR} to shift the complications from the
+lexer to the parser. You must check the remaining cases for
+correctness.
+
+In our example, it would be safe for the lexer to return tokens based on
+their current meanings in some symbol table, because no new symbols are
+defined in the middle of a type declaration. Though it is possible for
+a parser to define the enumeration constants as they are parsed, before
+the type declaration is completed, it actually makes no difference since
+they cannot be used within the same enumerated type declaration.
+
+@node Merging GLR Parses
+@subsection Using @acronym{GLR} to Resolve Ambiguities
+@cindex @acronym{GLR} parsing, ambiguous grammars
+@cindex generalized @acronym{LR} (@acronym{GLR}) parsing, ambiguous grammars
+@findex %dprec
+@findex %merge
+@cindex conflicts
+@cindex reduce/reduce conflicts
+
+Let's consider an example, vastly simplified from a C++ grammar.
+
+@example
+%@{
+ #include <stdio.h>
+ #define YYSTYPE char const *
+ int yylex (void);
+ void yyerror (char const *);
+%@}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%%
+
+prog :
+ | prog stmt @{ printf ("\n"); @}
+ ;
+
+stmt : expr ';' %dprec 1
+ | decl %dprec 2
+ ;
+
+expr : ID @{ printf ("%s ", $$); @}
+ | TYPENAME '(' expr ')'
+ @{ printf ("%s <cast> ", $1); @}
+ | expr '+' expr @{ printf ("+ "); @}
+ | expr '=' expr @{ printf ("= "); @}
+ ;
+
+decl : TYPENAME declarator ';'
+ @{ printf ("%s <declare> ", $1); @}
+ | TYPENAME declarator '=' expr ';'
+ @{ printf ("%s <init-declare> ", $1); @}
+ ;
+
+declarator : ID @{ printf ("\"%s\" ", $1); @}
+ | '(' declarator ')'
+ ;
+@end example
+
+@noindent
+This models a problematic part of the C++ grammar---the ambiguity between
+certain declarations and statements. For example,
+
+@example
+T (x) = y+z;
+@end example
+
+@noindent
+parses as either an @code{expr} or a @code{stmt}
+(assuming that @samp{T} is recognized as a @code{TYPENAME} and
+@samp{x} as an @code{ID}).
+Bison detects this as a reduce/reduce conflict between the rules
+@code{expr : ID} and @code{declarator : ID}, which it cannot resolve at the
+time it encounters @code{x} in the example above. Since this is a
+@acronym{GLR} parser, it therefore splits the problem into two parses, one for
+each choice of resolving the reduce/reduce conflict.
+Unlike the example from the previous section (@pxref{Simple GLR Parsers}),
+however, neither of these parses ``dies,'' because the grammar as it stands is
+ambiguous. One of the parsers eventually reduces @code{stmt : expr ';'} and
+the other reduces @code{stmt : decl}, after which both parsers are in an
+identical state: they've seen @samp{prog stmt} and have the same unprocessed
+input remaining. We say that these parses have @dfn{merged.}
+
+At this point, the @acronym{GLR} parser requires a specification in the
+grammar of how to choose between the competing parses.
+In the example above, the two @code{%dprec}
+declarations specify that Bison is to give precedence
+to the parse that interprets the example as a
+@code{decl}, which implies that @code{x} is a declarator.
+The parser therefore prints
+
+@example
+"x" y z + T <init-declare>
+@end example
+
+The @code{%dprec} declarations only come into play when more than one
+parse survives. Consider a different input string for this parser:
+
+@example
+T (x) + y;
+@end example
+
+@noindent
+This is another example of using @acronym{GLR} to parse an unambiguous
+construct, as shown in the previous section (@pxref{Simple GLR Parsers}).
+Here, there is no ambiguity (this cannot be parsed as a declaration).
+However, at the time the Bison parser encounters @code{x}, it does not
+have enough information to resolve the reduce/reduce conflict (again,
+between @code{x} as an @code{expr} or a @code{declarator}). In this
+case, no precedence declaration is used. Again, the parser splits
+into two, one assuming that @code{x} is an @code{expr}, and the other
+assuming @code{x} is a @code{declarator}. The second of these parsers
+then vanishes when it sees @code{+}, and the parser prints
+
+@example
+x T <cast> y +
+@end example
+
+Suppose that instead of resolving the ambiguity, you wanted to see all
+the possibilities. For this purpose, you must merge the semantic
+actions of the two possible parsers, rather than choosing one over the
+other. To do so, you could change the declaration of @code{stmt} as
+follows:
+
+@example
+stmt : expr ';' %merge <stmtMerge>
+ | decl %merge <stmtMerge>
+ ;
+@end example
+
+@noindent
+and define the @code{stmtMerge} function as:
+
+@example
+static YYSTYPE
+stmtMerge (YYSTYPE x0, YYSTYPE x1)
+@{
+ printf ("<OR> ");
+ return "";
+@}
+@end example
+
+@noindent
+with an accompanying forward declaration
+in the C declarations at the beginning of the file:
+
+@example
+%@{
+ #define YYSTYPE char const *
+ static YYSTYPE stmtMerge (YYSTYPE x0, YYSTYPE x1);
+%@}
+@end example
+
+@noindent
+With these declarations, the resulting parser parses the first example
+as both an @code{expr} and a @code{decl}, and prints
+
+@example
+"x" y z + T <init-declare> x T <cast> y z + = <OR>
+@end example
+
+Bison requires that all of the
+productions that participate in any particular merge have identical
+@samp{%merge} clauses. Otherwise, the ambiguity would be unresolvable,
+and the parser will report an error during any parse that results in
+the offending merge.
+
+@node GLR Semantic Actions
+@subsection GLR Semantic Actions
+
+@cindex deferred semantic actions
+By definition, a deferred semantic action is not performed at the same time as
+the associated reduction.
+This raises caveats for several Bison features you might use in a semantic
+action in a @acronym{GLR} parser.
+
+@vindex yychar
+@cindex @acronym{GLR} parsers and @code{yychar}
+@vindex yylval
+@cindex @acronym{GLR} parsers and @code{yylval}
+@vindex yylloc
+@cindex @acronym{GLR} parsers and @code{yylloc}
+In any semantic action, you can examine @code{yychar} to determine the type of
+the look-ahead token present at the time of the associated reduction.
+After checking that @code{yychar} is not set to @code{YYEMPTY} or @code{YYEOF},
+you can then examine @code{yylval} and @code{yylloc} to determine the
+look-ahead token's semantic value and location, if any.
+In a nondeferred semantic action, you can also modify any of these variables to
+influence syntax analysis.
+@xref{Look-Ahead, ,Look-Ahead Tokens}.
+
+@findex yyclearin
+@cindex @acronym{GLR} parsers and @code{yyclearin}
+In a deferred semantic action, it's too late to influence syntax analysis.
+In this case, @code{yychar}, @code{yylval}, and @code{yylloc} are set to
+shallow copies of the values they had at the time of the associated reduction.
+For this reason alone, modifying them is dangerous.
+Moreover, the result of modifying them is undefined and subject to change with
+future versions of Bison.
+For example, if a semantic action might be deferred, you should never write it
+to invoke @code{yyclearin} (@pxref{Action Features}) or to attempt to free
+memory referenced by @code{yylval}.
+
+@findex YYERROR
+@cindex @acronym{GLR} parsers and @code{YYERROR}
+Another Bison feature requiring special consideration is @code{YYERROR}
+(@pxref{Action Features}), which you can invoke in a semantic action to
+initiate error recovery.
+During deterministic @acronym{GLR} operation, the effect of @code{YYERROR} is
+the same as its effect in an @acronym{LALR}(1) parser.
+In a deferred semantic action, its effect is undefined.
+@c The effect is probably a syntax error at the split point.
+
+Also, see @ref{Location Default Action, ,Default Action for Locations}, which
+describes a special usage of @code{YYLLOC_DEFAULT} in @acronym{GLR} parsers.
+
+@node Compiler Requirements
+@subsection Considerations when Compiling @acronym{GLR} Parsers
+@cindex @code{inline}
+@cindex @acronym{GLR} parsers and @code{inline}
+
+The @acronym{GLR} parsers require a compiler for @acronym{ISO} C89 or
+later. In addition, they use the @code{inline} keyword, which is not
+C89, but is C99 and is a common extension in pre-C99 compilers. It is
+up to the user of these parsers to handle
+portability issues. For instance, if using Autoconf and the Autoconf
+macro @code{AC_C_INLINE}, a mere
+
+@example
+%@{
+ #include <config.h>
+%@}
+@end example
+
+@noindent
+will suffice. Otherwise, we suggest
+
+@example
+%@{
+ #if __STDC_VERSION__ < 199901 && ! defined __GNUC__ && ! defined inline
+ #define inline
+ #endif
+%@}
+@end example
+
+@node Locations Overview
+@section Locations
+@cindex location
+@cindex textual location
+@cindex location, textual
+
+Many applications, like interpreters or compilers, have to produce verbose
+and useful error messages. To achieve this, one must be able to keep track of
+the @dfn{textual location}, or @dfn{location}, of each syntactic construct.
+Bison provides a mechanism for handling these locations.
+
+Each token has a semantic value. In a similar fashion, each token has an
+associated location, but the type of locations is the same for all tokens and
+groupings. Moreover, the output parser is equipped with a default data
+structure for storing locations (@pxref{Locations}, for more details).
+
+Like semantic values, locations can be reached in actions using a dedicated
+set of constructs. In the example above, the location of the whole grouping
+is @code{@@$}, while the locations of the subexpressions are @code{@@1} and
+@code{@@3}.
+
+When a rule is matched, a default action is used to compute the semantic value
+of its left hand side (@pxref{Actions}). In the same way, another default
+action is used for locations. However, the action for locations is general
+enough for most cases, meaning there is usually no need to describe for each
+rule how @code{@@$} should be formed. When building a new location for a given
+grouping, the default behavior of the output parser is to take the beginning
+of the first symbol, and the end of the last symbol.
+
+@node Bison Parser
+@section Bison Output: the Parser File
+@cindex Bison parser
+@cindex Bison utility
+@cindex lexical analyzer, purpose
+@cindex parser
+
+When you run Bison, you give it a Bison grammar file as input. The output
+is a C source file that parses the language described by the grammar.
+This file is called a @dfn{Bison parser}. Keep in mind that the Bison
+utility and the Bison parser are two distinct programs: the Bison utility
+is a program whose output is the Bison parser that becomes part of your
+program.
+
+The job of the Bison parser is to group tokens into groupings according to
+the grammar rules---for example, to build identifiers and operators into
+expressions. As it does this, it runs the actions for the grammar rules it
+uses.
+
+The tokens come from a function called the @dfn{lexical analyzer} that
+you must supply in some fashion (such as by writing it in C). The Bison
+parser calls the lexical analyzer each time it wants a new token. It
+doesn't know what is ``inside'' the tokens (though their semantic values
+may reflect this). Typically the lexical analyzer makes the tokens by
+parsing characters of text, but Bison does not depend on this.
+@xref{Lexical, ,The Lexical Analyzer Function @code{yylex}}.
+
+The Bison parser file is C code which defines a function named
+@code{yyparse} which implements that grammar. This function does not make
+a complete C program: you must supply some additional functions. One is
+the lexical analyzer. Another is an error-reporting function which the
+parser calls to report an error. In addition, a complete C program must
+start with a function called @code{main}; you have to provide this, and
+arrange for it to call @code{yyparse} or the parser will never run.
+@xref{Interface, ,Parser C-Language Interface}.
+
+Aside from the token type names and the symbols in the actions you
+write, all symbols defined in the Bison parser file itself
+begin with @samp{yy} or @samp{YY}. This includes interface functions
+such as the lexical analyzer function @code{yylex}, the error reporting
+function @code{yyerror} and the parser function @code{yyparse} itself.
+This also includes numerous identifiers used for internal purposes.
+Therefore, you should avoid using C identifiers starting with @samp{yy}
+or @samp{YY} in the Bison grammar file except for the ones defined in
+this manual. Also, you should avoid using the C identifiers
+@samp{malloc} and @samp{free} for anything other than their usual
+meanings.
+
+In some cases the Bison parser file includes system headers, and in
+those cases your code should respect the identifiers reserved by those
+headers. On some non-@acronym{GNU} hosts, @code{<alloca.h>}, @code{<malloc.h>},
+@code{<stddef.h>}, and @code{<stdlib.h>} are included as needed to
+declare memory allocators and related types. @code{<libintl.h>} is
+included if message translation is in use
+(@pxref{Internationalization}). Other system headers may
+be included if you define @code{YYDEBUG} to a nonzero value
+(@pxref{Tracing, ,Tracing Your Parser}).
+
+@node Stages
+@section Stages in Using Bison
+@cindex stages in using Bison
+@cindex using Bison
+
+The actual language-design process using Bison, from grammar specification
+to a working compiler or interpreter, has these parts:
+
+@enumerate
+@item
+Formally specify the grammar in a form recognized by Bison
+(@pxref{Grammar File, ,Bison Grammar Files}). For each grammatical rule
+in the language, describe the action that is to be taken when an
+instance of that rule is recognized. The action is described by a
+sequence of C statements.
+
+@item
+Write a lexical analyzer to process input and pass tokens to the parser.
+The lexical analyzer may be written by hand in C (@pxref{Lexical, ,The
+Lexical Analyzer Function @code{yylex}}). It could also be produced
+using Lex, but the use of Lex is not discussed in this manual.
+
+@item
+Write a controlling function that calls the Bison-produced parser.
+
+@item
+Write error-reporting routines.
+@end enumerate
+
+To turn this source code as written into a runnable program, you
+must follow these steps:
+
+@enumerate
+@item
+Run Bison on the grammar to produce the parser.
+
+@item
+Compile the code output by Bison, as well as any other source files.
+
+@item
+Link the object files to produce the finished product.
+@end enumerate
+
+@node Grammar Layout
+@section The Overall Layout of a Bison Grammar
+@cindex grammar file
+@cindex file format
+@cindex format of grammar file
+@cindex layout of Bison grammar
+
+The input file for the Bison utility is a @dfn{Bison grammar file}. The
+general form of a Bison grammar file is as follows:
+
+@example
+%@{
+@var{Prologue}
+%@}
+
+@var{Bison declarations}
+
+%%
+@var{Grammar rules}
+%%
+@var{Epilogue}
+@end example
+
+@noindent
+The @samp{%%}, @samp{%@{} and @samp{%@}} are punctuation that appears
+in every Bison grammar file to separate the sections.
+
+The prologue may define types and variables used in the actions. You can
+also use preprocessor commands to define macros used there, and use
+@code{#include} to include header files that do any of these things.
+You need to declare the lexical analyzer @code{yylex} and the error
+printer @code{yyerror} here, along with any other global identifiers
+used by the actions in the grammar rules.
+
+The Bison declarations declare the names of the terminal and nonterminal
+symbols, and may also describe operator precedence and the data types of
+semantic values of various symbols.
+
+The grammar rules define how to construct each nonterminal symbol from its
+parts.
+
+The epilogue can contain any code you want to use. Often the
+definitions of functions declared in the prologue go here. In a
+simple program, all the rest of the program can go here.
+
+@node Examples
+@chapter Examples
+@cindex simple examples
+@cindex examples, simple
+
+Now we show and explain three sample programs written using Bison: a
+reverse polish notation calculator, an algebraic (infix) notation
+calculator, and a multi-function calculator. All three have been tested
+under BSD Unix 4.3; each produces a usable, though limited, interactive
+desk-top calculator.
+
+These examples are simple, but Bison grammars for real programming
+languages are written the same way. You can copy these examples into a
+source file to try them.
+
+@menu
+* RPN Calc:: Reverse polish notation calculator;
+ a first example with no operator precedence.
+* Infix Calc:: Infix (algebraic) notation calculator.
+ Operator precedence is introduced.
+* Simple Error Recovery:: Continuing after syntax errors.
+* Location Tracking Calc:: Demonstrating the use of @@@var{n} and @@$.
+* Multi-function Calc:: Calculator with memory and trig functions.
+ It uses multiple data-types for semantic values.
+* Exercises:: Ideas for improving the multi-function calculator.
+@end menu
+
+@node RPN Calc
+@section Reverse Polish Notation Calculator
+@cindex reverse polish notation
+@cindex polish notation calculator
+@cindex @code{rpcalc}
+@cindex calculator, simple
+
+The first example is that of a simple double-precision @dfn{reverse polish
+notation} calculator (a calculator using postfix operators). This example
+provides a good starting point, since operator precedence is not an issue.
+The second example will illustrate how operator precedence is handled.
+
+The source code for this calculator is named @file{rpcalc.y}. The
+@samp{.y} extension is a convention used for Bison input files.
+
+@menu
+* Decls: Rpcalc Decls. Prologue (declarations) for rpcalc.
+* Rules: Rpcalc Rules. Grammar Rules for rpcalc, with explanation.
+* Lexer: Rpcalc Lexer. The lexical analyzer.
+* Main: Rpcalc Main. The controlling function.
+* Error: Rpcalc Error. The error reporting function.
+* Gen: Rpcalc Gen. Running Bison on the grammar file.
+* Comp: Rpcalc Compile. Run the C compiler on the output code.
+@end menu
+
+@node Rpcalc Decls
+@subsection Declarations for @code{rpcalc}
+
+Here are the C and Bison declarations for the reverse polish notation
+calculator. As in C, comments are placed between @samp{/*@dots{}*/}.
+
+@example
+/* Reverse polish notation calculator. */
+
+%@{
+ #define YYSTYPE double
+ #include <math.h>
+ int yylex (void);
+ void yyerror (char const *);
+%@}
+
+%token NUM
+
+%% /* Grammar rules and actions follow. */
+@end example
+
+The declarations section (@pxref{Prologue, , The prologue}) contains two
+preprocessor directives and two forward declarations.
+
+The @code{#define} directive defines the macro @code{YYSTYPE}, thus
+specifying the C data type for semantic values of both tokens and
+groupings (@pxref{Value Type, ,Data Types of Semantic Values}). The
+Bison parser will use whatever type @code{YYSTYPE} is defined as; if you
+don't define it, @code{int} is the default. Because we specify
+@code{double}, each token and each expression has an associated value,
+which is a floating point number.
+
+The @code{#include} directive is used to declare the exponentiation
+function @code{pow}.
+
+The forward declarations for @code{yylex} and @code{yyerror} are
+needed because the C language requires that functions be declared
+before they are used. These functions will be defined in the
+epilogue, but the parser calls them so they must be declared in the
+prologue.
+
+The second section, Bison declarations, provides information to Bison
+about the token types (@pxref{Bison Declarations, ,The Bison
+Declarations Section}). Each terminal symbol that is not a
+single-character literal must be declared here. (Single-character
+literals normally don't need to be declared.) In this example, all the
+arithmetic operators are designated by single-character literals, so the
+only terminal symbol that needs to be declared is @code{NUM}, the token
+type for numeric constants.
+
+@node Rpcalc Rules
+@subsection Grammar Rules for @code{rpcalc}
+
+Here are the grammar rules for the reverse polish notation calculator.
+
+@example
+input: /* empty */
+ | input line
+;
+
+line: '\n'
+ | exp '\n' @{ printf ("\t%.10g\n", $1); @}
+;
+
+exp: NUM @{ $$ = $1; @}
+ | exp exp '+' @{ $$ = $1 + $2; @}
+ | exp exp '-' @{ $$ = $1 - $2; @}
+ | exp exp '*' @{ $$ = $1 * $2; @}
+ | exp exp '/' @{ $$ = $1 / $2; @}
+ /* Exponentiation */
+ | exp exp '^' @{ $$ = pow ($1, $2); @}
+ /* Unary minus */
+ | exp 'n' @{ $$ = -$1; @}
+;
+%%
+@end example
+
+The groupings of the rpcalc ``language'' defined here are the expression
+(given the name @code{exp}), the line of input (@code{line}), and the
+complete input transcript (@code{input}). Each of these nonterminal
+symbols has several alternate rules, joined by the vertical bar @samp{|}
+which is read as ``or''. The following sections explain what these rules
+mean.
+
+The semantics of the language is determined by the actions taken when a
+grouping is recognized. The actions are the C code that appears inside
+braces. @xref{Actions}.
+
+You must specify these actions in C, but Bison provides the means for
+passing semantic values between the rules. In each action, the
+pseudo-variable @code{$$} stands for the semantic value for the grouping
+that the rule is going to construct. Assigning a value to @code{$$} is the
+main job of most actions. The semantic values of the components of the
+rule are referred to as @code{$1}, @code{$2}, and so on.
+
+@menu
+* Rpcalc Input::
+* Rpcalc Line::
+* Rpcalc Expr::
+@end menu
+
+@node Rpcalc Input
+@subsubsection Explanation of @code{input}
+
+Consider the definition of @code{input}:
+
+@example
+input: /* empty */
+ | input line
+;
+@end example
+
+This definition reads as follows: ``A complete input is either an empty
+string, or a complete input followed by an input line''. Notice that
+``complete input'' is defined in terms of itself. This definition is said
+to be @dfn{left recursive} since @code{input} appears always as the
+leftmost symbol in the sequence. @xref{Recursion, ,Recursive Rules}.
+
+The first alternative is empty because there are no symbols between the
+colon and the first @samp{|}; this means that @code{input} can match an
+empty string of input (no tokens). We write the rules this way because it
+is legitimate to type @kbd{Ctrl-d} right after you start the calculator.
+It's conventional to put an empty alternative first and write the comment
+@samp{/* empty */} in it.
+
+The second alternate rule (@code{input line}) handles all nontrivial input.
+It means, ``After reading any number of lines, read one more line if
+possible.'' The left recursion makes this rule into a loop. Since the
+first alternative matches empty input, the loop can be executed zero or
+more times.
+
+The parser function @code{yyparse} continues to process input until a
+grammatical error is seen or the lexical analyzer says there are no more
+input tokens; we will arrange for the latter to happen at end-of-input.
+
+@node Rpcalc Line
+@subsubsection Explanation of @code{line}
+
+Now consider the definition of @code{line}:
+
+@example
+line: '\n'
+ | exp '\n' @{ printf ("\t%.10g\n", $1); @}
+;
+@end example
+
+The first alternative is a token which is a newline character; this means
+that rpcalc accepts a blank line (and ignores it, since there is no
+action). The second alternative is an expression followed by a newline.
+This is the alternative that makes rpcalc useful. The semantic value of
+the @code{exp} grouping is the value of @code{$1} because the @code{exp} in
+question is the first symbol in the alternative. The action prints this
+value, which is the result of the computation the user asked for.
+
+This action is unusual because it does not assign a value to @code{$$}. As
+a consequence, the semantic value associated with the @code{line} is
+uninitialized (its value will be unpredictable). This would be a bug if
+that value were ever used, but we don't use it: once rpcalc has printed the
+value of the user's input line, that value is no longer needed.
+
+@node Rpcalc Expr
+@subsubsection Explanation of @code{expr}
+
+The @code{exp} grouping has several rules, one for each kind of expression.
+The first rule handles the simplest expressions: those that are just numbers.
+The second handles an addition-expression, which looks like two expressions
+followed by a plus-sign. The third handles subtraction, and so on.
+
+@example
+exp: NUM
+ | exp exp '+' @{ $$ = $1 + $2; @}
+ | exp exp '-' @{ $$ = $1 - $2; @}
+ @dots{}
+ ;
+@end example
+
+We have used @samp{|} to join all the rules for @code{exp}, but we could
+equally well have written them separately:
+
+@example
+exp: NUM ;
+exp: exp exp '+' @{ $$ = $1 + $2; @} ;
+exp: exp exp '-' @{ $$ = $1 - $2; @} ;
+ @dots{}
+@end example
+
+Most of the rules have actions that compute the value of the expression in
+terms of the value of its parts. For example, in the rule for addition,
+@code{$1} refers to the first component @code{exp} and @code{$2} refers to
+the second one. The third component, @code{'+'}, has no meaningful
+associated semantic value, but if it had one you could refer to it as
+@code{$3}. When @code{yyparse} recognizes a sum expression using this
+rule, the sum of the two subexpressions' values is produced as the value of
+the entire expression. @xref{Actions}.
+
+You don't have to give an action for every rule. When a rule has no
+action, Bison by default copies the value of @code{$1} into @code{$$}.
+This is what happens in the first rule (the one that uses @code{NUM}).
+
+The formatting shown here is the recommended convention, but Bison does
+not require it. You can add or change white space as much as you wish.
+For example, this:
+
+@example
+exp : NUM | exp exp '+' @{$$ = $1 + $2; @} | @dots{} ;
+@end example
+
+@noindent
+means the same thing as this:
+
+@example
+exp: NUM
+ | exp exp '+' @{ $$ = $1 + $2; @}
+ | @dots{}
+;
+@end example
+
+@noindent
+The latter, however, is much more readable.
+
+@node Rpcalc Lexer
+@subsection The @code{rpcalc} Lexical Analyzer
+@cindex writing a lexical analyzer
+@cindex lexical analyzer, writing
+
+The lexical analyzer's job is low-level parsing: converting characters
+or sequences of characters into tokens. The Bison parser gets its
+tokens by calling the lexical analyzer. @xref{Lexical, ,The Lexical
+Analyzer Function @code{yylex}}.
+
+Only a simple lexical analyzer is needed for the @acronym{RPN}
+calculator. This
+lexical analyzer skips blanks and tabs, then reads in numbers as
+@code{double} and returns them as @code{NUM} tokens. Any other character
+that isn't part of a number is a separate token. Note that the token-code
+for such a single-character token is the character itself.
+
+The return value of the lexical analyzer function is a numeric code which
+represents a token type. The same text used in Bison rules to stand for
+this token type is also a C expression for the numeric code for the type.
+This works in two ways. If the token type is a character literal, then its
+numeric code is that of the character; you can use the same
+character literal in the lexical analyzer to express the number. If the
+token type is an identifier, that identifier is defined by Bison as a C
+macro whose definition is the appropriate number. In this example,
+therefore, @code{NUM} becomes a macro for @code{yylex} to use.
+
+The semantic value of the token (if it has one) is stored into the
+global variable @code{yylval}, which is where the Bison parser will look
+for it. (The C data type of @code{yylval} is @code{YYSTYPE}, which was
+defined at the beginning of the grammar; @pxref{Rpcalc Decls,
+,Declarations for @code{rpcalc}}.)
+
+A token type code of zero is returned if the end-of-input is encountered.
+(Bison recognizes any nonpositive value as indicating end-of-input.)
+
+Here is the code for the lexical analyzer:
+
+@example
+@group
+/* The lexical analyzer returns a double floating point
+ number on the stack and the token NUM, or the numeric code
+ of the character read if not a number. It skips all blanks
+ and tabs, and returns 0 for end-of-input. */
+
+#include <ctype.h>
+@end group
+
+@group
+int
+yylex (void)
+@{
+ int c;
+
+ /* Skip white space. */
+ while ((c = getchar ()) == ' ' || c == '\t')
+ ;
+@end group
+@group
+ /* Process numbers. */
+ if (c == '.' || isdigit (c))
+ @{
+ ungetc (c, stdin);
+ scanf ("%lf", &yylval);
+ return NUM;
+ @}
+@end group
+@group
+ /* Return end-of-input. */
+ if (c == EOF)
+ return 0;
+ /* Return a single char. */
+ return c;
+@}
+@end group
+@end example
+
+@node Rpcalc Main
+@subsection The Controlling Function
+@cindex controlling function
+@cindex main function in simple example
+
+In keeping with the spirit of this example, the controlling function is
+kept to the bare minimum. The only requirement is that it call
+@code{yyparse} to start the process of parsing.
+
+@example
+@group
+int
+main (void)
+@{
+ return yyparse ();
+@}
+@end group
+@end example
+
+@node Rpcalc Error
+@subsection The Error Reporting Routine
+@cindex error reporting routine
+
+When @code{yyparse} detects a syntax error, it calls the error reporting
+function @code{yyerror} to print an error message (usually but not
+always @code{"syntax error"}). It is up to the programmer to supply
+@code{yyerror} (@pxref{Interface, ,Parser C-Language Interface}), so
+here is the definition we will use:
+
+@example
+@group
+#include <stdio.h>
+
+/* Called by yyparse on error. */
+void
+yyerror (char const *s)
+@{
+ fprintf (stderr, "%s\n", s);
+@}
+@end group
+@end example
+
+After @code{yyerror} returns, the Bison parser may recover from the error
+and continue parsing if the grammar contains a suitable error rule
+(@pxref{Error Recovery}). Otherwise, @code{yyparse} returns nonzero. We
+have not written any error rules in this example, so any invalid input will
+cause the calculator program to exit. This is not clean behavior for a
+real calculator, but it is adequate for the first example.
+
+@node Rpcalc Gen
+@subsection Running Bison to Make the Parser
+@cindex running Bison (introduction)
+
+Before running Bison to produce a parser, we need to decide how to
+arrange all the source code in one or more source files. For such a
+simple example, the easiest thing is to put everything in one file. The
+definitions of @code{yylex}, @code{yyerror} and @code{main} go at the
+end, in the epilogue of the file
+(@pxref{Grammar Layout, ,The Overall Layout of a Bison Grammar}).
+
+For a large project, you would probably have several source files, and use
+@code{make} to arrange to recompile them.
+
+With all the source in a single file, you use the following command to
+convert it into a parser file:
+
+@example
+bison @var{file}.y
+@end example
+
+@noindent
+In this example the file was called @file{rpcalc.y} (for ``Reverse Polish
+@sc{calc}ulator''). Bison produces a file named @file{@var{file}.tab.c},
+removing the @samp{.y} from the original file name. The file output by
+Bison contains the source code for @code{yyparse}. The additional
+functions in the input file (@code{yylex}, @code{yyerror} and @code{main})
+are copied verbatim to the output.
+
+@node Rpcalc Compile
+@subsection Compiling the Parser File
+@cindex compiling the parser
+
+Here is how to compile and run the parser file:
+
+@example
+@group
+# @r{List files in current directory.}
+$ @kbd{ls}
+rpcalc.tab.c rpcalc.y
+@end group
+
+@group
+# @r{Compile the Bison parser.}
+# @r{@samp{-lm} tells compiler to search math library for @code{pow}.}
+$ @kbd{cc -lm -o rpcalc rpcalc.tab.c}
+@end group
+
+@group
+# @r{List files again.}
+$ @kbd{ls}
+rpcalc rpcalc.tab.c rpcalc.y
+@end group
+@end example
+
+The file @file{rpcalc} now contains the executable code. Here is an
+example session using @code{rpcalc}.
+
+@example
+$ @kbd{rpcalc}
+@kbd{4 9 +}
+13
+@kbd{3 7 + 3 4 5 *+-}
+-13
+@kbd{3 7 + 3 4 5 * + - n} @r{Note the unary minus, @samp{n}}
+13
+@kbd{5 6 / 4 n +}
+-3.166666667
+@kbd{3 4 ^} @r{Exponentiation}
+81
+@kbd{^D} @r{End-of-file indicator}
+$
+@end example
+
+@node Infix Calc
+@section Infix Notation Calculator: @code{calc}
+@cindex infix notation calculator
+@cindex @code{calc}
+@cindex calculator, infix notation
+
+We now modify rpcalc to handle infix operators instead of postfix. Infix
+notation involves the concept of operator precedence and the need for
+parentheses nested to arbitrary depth. Here is the Bison code for
+@file{calc.y}, an infix desk-top calculator.
+
+@example
+/* Infix notation calculator. */
+
+%@{
+ #define YYSTYPE double
+ #include <math.h>
+ #include <stdio.h>
+ int yylex (void);
+ void yyerror (char const *);
+%@}
+
+/* Bison declarations. */
+%token NUM
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+%% /* The grammar follows. */
+input: /* empty */
+ | input line
+;
+
+line: '\n'
+ | exp '\n' @{ printf ("\t%.10g\n", $1); @}
+;
+
+exp: NUM @{ $$ = $1; @}
+ | exp '+' exp @{ $$ = $1 + $3; @}
+ | exp '-' exp @{ $$ = $1 - $3; @}
+ | exp '*' exp @{ $$ = $1 * $3; @}
+ | exp '/' exp @{ $$ = $1 / $3; @}
+ | '-' exp %prec NEG @{ $$ = -$2; @}
+ | exp '^' exp @{ $$ = pow ($1, $3); @}
+ | '(' exp ')' @{ $$ = $2; @}
+;
+%%
+@end example
+
+@noindent
+The functions @code{yylex}, @code{yyerror} and @code{main} can be the
+same as before.
+
+There are two important new features shown in this code.
+
+In the second section (Bison declarations), @code{%left} declares token
+types and says they are left-associative operators. The declarations
+@code{%left} and @code{%right} (right associativity) take the place of
+@code{%token} which is used to declare a token type name without
+associativity. (These tokens are single-character literals, which
+ordinarily don't need to be declared. We declare them here to specify
+the associativity.)
+
+Operator precedence is determined by the line ordering of the
+declarations; the higher the line number of the declaration (lower on
+the page or screen), the higher the precedence. Hence, exponentiation
+has the highest precedence, unary minus (@code{NEG}) is next, followed
+by @samp{*} and @samp{/}, and so on. @xref{Precedence, ,Operator
+Precedence}.
+
+The other important new feature is the @code{%prec} in the grammar
+section for the unary minus operator. The @code{%prec} simply instructs
+Bison that the rule @samp{| '-' exp} has the same precedence as
+@code{NEG}---in this case the next-to-highest. @xref{Contextual
+Precedence, ,Context-Dependent Precedence}.
+
+Here is a sample run of @file{calc.y}:
+
+@need 500
+@example
+$ @kbd{calc}
+@kbd{4 + 4.5 - (34/(8*3+-3))}
+6.880952381
+@kbd{-56 + 2}
+-54
+@kbd{3 ^ 2}
+9
+@end example
+
+@node Simple Error Recovery
+@section Simple Error Recovery
+@cindex error recovery, simple
+
+Up to this point, this manual has not addressed the issue of @dfn{error
+recovery}---how to continue parsing after the parser detects a syntax
+error. All we have handled is error reporting with @code{yyerror}.
+Recall that by default @code{yyparse} returns after calling
+@code{yyerror}. This means that an erroneous input line causes the
+calculator program to exit. Now we show how to rectify this deficiency.
+
+The Bison language itself includes the reserved word @code{error}, which
+may be included in the grammar rules. In the example below it has
+been added to one of the alternatives for @code{line}:
+
+@example
+@group
+line: '\n'
+ | exp '\n' @{ printf ("\t%.10g\n", $1); @}
+ | error '\n' @{ yyerrok; @}
+;
+@end group
+@end example
+
+This addition to the grammar allows for simple error recovery in the
+event of a syntax error. If an expression that cannot be evaluated is
+read, the error will be recognized by the third rule for @code{line},
+and parsing will continue. (The @code{yyerror} function is still called
+upon to print its message as well.) The action executes the statement
+@code{yyerrok}, a macro defined automatically by Bison; its meaning is
+that error recovery is complete (@pxref{Error Recovery}). Note the
+difference between @code{yyerrok} and @code{yyerror}; neither one is a
+misprint.
+
+This form of error recovery deals with syntax errors. There are other
+kinds of errors; for example, division by zero, which raises an exception
+signal that is normally fatal. A real calculator program must handle this
+signal and use @code{longjmp} to return to @code{main} and resume parsing
+input lines; it would also have to discard the rest of the current line of
+input. We won't discuss this issue further because it is not specific to
+Bison programs.
+
+@node Location Tracking Calc
+@section Location Tracking Calculator: @code{ltcalc}
+@cindex location tracking calculator
+@cindex @code{ltcalc}
+@cindex calculator, location tracking
+
+This example extends the infix notation calculator with location
+tracking. This feature will be used to improve the error messages. For
+the sake of clarity, this example is a simple integer calculator, since
+most of the work needed to use locations will be done in the lexical
+analyzer.
+
+@menu
+* Decls: Ltcalc Decls. Bison and C declarations for ltcalc.
+* Rules: Ltcalc Rules. Grammar rules for ltcalc, with explanations.
+* Lexer: Ltcalc Lexer. The lexical analyzer.
+@end menu
+
+@node Ltcalc Decls
+@subsection Declarations for @code{ltcalc}
+
+The C and Bison declarations for the location tracking calculator are
+the same as the declarations for the infix notation calculator.
+
+@example
+/* Location tracking calculator. */
+
+%@{
+ #define YYSTYPE int
+ #include <math.h>
+ int yylex (void);
+ void yyerror (char const *);
+%@}
+
+/* Bison declarations. */
+%token NUM
+
+%left '-' '+'
+%left '*' '/'
+%left NEG
+%right '^'
+
+%% /* The grammar follows. */
+@end example
+
+@noindent
+Note there are no declarations specific to locations. Defining a data
+type for storing locations is not needed: we will use the type provided
+by default (@pxref{Location Type, ,Data Types of Locations}), which is a
+four member structure with the following integer fields:
+@code{first_line}, @code{first_column}, @code{last_line} and
+@code{last_column}.
+
+@node Ltcalc Rules
+@subsection Grammar Rules for @code{ltcalc}
+
+Whether handling locations or not has no effect on the syntax of your
+language. Therefore, grammar rules for this example will be very close
+to those of the previous example: we will only modify them to benefit
+from the new information.
+
+Here, we will use locations to report divisions by zero, and locate the
+wrong expressions or subexpressions.
+
+@example
+@group
+input : /* empty */
+ | input line
+;
+@end group
+
+@group
+line : '\n'
+ | exp '\n' @{ printf ("%d\n", $1); @}
+;
+@end group
+
+@group
+exp : NUM @{ $$ = $1; @}
+ | exp '+' exp @{ $$ = $1 + $3; @}
+ | exp '-' exp @{ $$ = $1 - $3; @}
+ | exp '*' exp @{ $$ = $1 * $3; @}
+@end group
+@group
+ | exp '/' exp
+ @{
+ if ($3)
+ $$ = $1 / $3;
+ else
+ @{
+ $$ = 1;
+ fprintf (stderr, "%d.%d-%d.%d: division by zero",
+ @@3.first_line, @@3.first_column,
+ @@3.last_line, @@3.last_column);
+ @}
+ @}
+@end group
+@group
+ | '-' exp %preg NEG @{ $$ = -$2; @}
+ | exp '^' exp @{ $$ = pow ($1, $3); @}
+ | '(' exp ')' @{ $$ = $2; @}
+@end group
+@end example
+
+This code shows how to reach locations inside of semantic actions, by
+using the pseudo-variables @code{@@@var{n}} for rule components, and the
+pseudo-variable @code{@@$} for groupings.
+
+We don't need to assign a value to @code{@@$}: the output parser does it
+automatically. By default, before executing the C code of each action,
+@code{@@$} is set to range from the beginning of @code{@@1} to the end
+of @code{@@@var{n}}, for a rule with @var{n} components. This behavior
+can be redefined (@pxref{Location Default Action, , Default Action for
+Locations}), and for very specific rules, @code{@@$} can be computed by
+hand.
+
+@node Ltcalc Lexer
+@subsection The @code{ltcalc} Lexical Analyzer.
+
+Until now, we relied on Bison's defaults to enable location
+tracking. The next step is to rewrite the lexical analyzer, and make it
+able to feed the parser with the token locations, as it already does for
+semantic values.
+
+To this end, we must take into account every single character of the
+input text, to avoid the computed locations of being fuzzy or wrong:
+
+@example
+@group
+int
+yylex (void)
+@{
+ int c;
+@end group
+
+@group
+ /* Skip white space. */
+ while ((c = getchar ()) == ' ' || c == '\t')
+ ++yylloc.last_column;
+@end group
+
+@group
+ /* Step. */
+ yylloc.first_line = yylloc.last_line;
+ yylloc.first_column = yylloc.last_column;
+@end group
+
+@group
+ /* Process numbers. */
+ if (isdigit (c))
+ @{
+ yylval = c - '0';
+ ++yylloc.last_column;
+ while (isdigit (c = getchar ()))
+ @{
+ ++yylloc.last_column;
+ yylval = yylval * 10 + c - '0';
+ @}
+ ungetc (c, stdin);
+ return NUM;
+ @}
+@end group
+
+ /* Return end-of-input. */
+ if (c == EOF)
+ return 0;
+
+ /* Return a single char, and update location. */
+ if (c == '\n')
+ @{
+ ++yylloc.last_line;
+ yylloc.last_column = 0;
+ @}
+ else
+ ++yylloc.last_column;
+ return c;
+@}
+@end example
+
+Basically, the lexical analyzer performs the same processing as before:
+it skips blanks and tabs, and reads numbers or single-character tokens.
+In addition, it updates @code{yylloc}, the global variable (of type
+@code{YYLTYPE}) containing the token's location.
+
+Now, each time this function returns a token, the parser has its number
+as well as its semantic value, and its location in the text. The last
+needed change is to initialize @code{yylloc}, for example in the
+controlling function:
+
+@example
+@group
+int
+main (void)
+@{
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = 0;
+ return yyparse ();
+@}
+@end group
+@end example
+
+Remember that computing locations is not a matter of syntax. Every
+character must be associated to a location update, whether it is in
+valid input, in comments, in literal strings, and so on.
+
+@node Multi-function Calc
+@section Multi-Function Calculator: @code{mfcalc}
+@cindex multi-function calculator
+@cindex @code{mfcalc}
+@cindex calculator, multi-function
+
+Now that the basics of Bison have been discussed, it is time to move on to
+a more advanced problem. The above calculators provided only five
+functions, @samp{+}, @samp{-}, @samp{*}, @samp{/} and @samp{^}. It would
+be nice to have a calculator that provides other mathematical functions such
+as @code{sin}, @code{cos}, etc.
+
+It is easy to add new operators to the infix calculator as long as they are
+only single-character literals. The lexical analyzer @code{yylex} passes
+back all nonnumeric characters as tokens, so new grammar rules suffice for
+adding a new operator. But we want something more flexible: built-in
+functions whose syntax has this form:
+
+@example
+@var{function_name} (@var{argument})
+@end example
+
+@noindent
+At the same time, we will add memory to the calculator, by allowing you
+to create named variables, store values in them, and use them later.
+Here is a sample session with the multi-function calculator:
+
+@example
+$ @kbd{mfcalc}
+@kbd{pi = 3.141592653589}
+3.1415926536
+@kbd{sin(pi)}
+0.0000000000
+@kbd{alpha = beta1 = 2.3}
+2.3000000000
+@kbd{alpha}
+2.3000000000
+@kbd{ln(alpha)}
+0.8329091229
+@kbd{exp(ln(beta1))}
+2.3000000000
+$
+@end example
+
+Note that multiple assignment and nested function calls are permitted.
+
+@menu
+* Decl: Mfcalc Decl. Bison declarations for multi-function calculator.
+* Rules: Mfcalc Rules. Grammar rules for the calculator.
+* Symtab: Mfcalc Symtab. Symbol table management subroutines.
+@end menu
+
+@node Mfcalc Decl
+@subsection Declarations for @code{mfcalc}
+
+Here are the C and Bison declarations for the multi-function calculator.
+
+@smallexample
+@group
+%@{
+ #include <math.h> /* For math functions, cos(), sin(), etc. */
+ #include "calc.h" /* Contains definition of `symrec'. */
+ int yylex (void);
+ void yyerror (char const *);
+%@}
+@end group
+@group
+%union @{
+ double val; /* For returning numbers. */
+ symrec *tptr; /* For returning symbol-table pointers. */
+@}
+@end group
+%token <val> NUM /* Simple double precision number. */
+%token <tptr> VAR FNCT /* Variable and Function. */
+%type <val> exp
+
+@group
+%right '='
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+@end group
+%% /* The grammar follows. */
+@end smallexample
+
+The above grammar introduces only two new features of the Bison language.
+These features allow semantic values to have various data types
+(@pxref{Multiple Types, ,More Than One Value Type}).
+
+The @code{%union} declaration specifies the entire list of possible types;
+this is instead of defining @code{YYSTYPE}. The allowable types are now
+double-floats (for @code{exp} and @code{NUM}) and pointers to entries in
+the symbol table. @xref{Union Decl, ,The Collection of Value Types}.
+
+Since values can now have various types, it is necessary to associate a
+type with each grammar symbol whose semantic value is used. These symbols
+are @code{NUM}, @code{VAR}, @code{FNCT}, and @code{exp}. Their
+declarations are augmented with information about their data type (placed
+between angle brackets).
+
+The Bison construct @code{%type} is used for declaring nonterminal
+symbols, just as @code{%token} is used for declaring token types. We
+have not used @code{%type} before because nonterminal symbols are
+normally declared implicitly by the rules that define them. But
+@code{exp} must be declared explicitly so we can specify its value type.
+@xref{Type Decl, ,Nonterminal Symbols}.
+
+@node Mfcalc Rules
+@subsection Grammar Rules for @code{mfcalc}
+
+Here are the grammar rules for the multi-function calculator.
+Most of them are copied directly from @code{calc}; three rules,
+those which mention @code{VAR} or @code{FNCT}, are new.
+
+@smallexample
+@group
+input: /* empty */
+ | input line
+;
+@end group
+
+@group
+line:
+ '\n'
+ | exp '\n' @{ printf ("\t%.10g\n", $1); @}
+ | error '\n' @{ yyerrok; @}
+;
+@end group
+
+@group
+exp: NUM @{ $$ = $1; @}
+ | VAR @{ $$ = $1->value.var; @}
+ | VAR '=' exp @{ $$ = $3; $1->value.var = $3; @}
+ | FNCT '(' exp ')' @{ $$ = (*($1->value.fnctptr))($3); @}
+ | exp '+' exp @{ $$ = $1 + $3; @}
+ | exp '-' exp @{ $$ = $1 - $3; @}
+ | exp '*' exp @{ $$ = $1 * $3; @}
+ | exp '/' exp @{ $$ = $1 / $3; @}
+ | '-' exp %prec NEG @{ $$ = -$2; @}
+ | exp '^' exp @{ $$ = pow ($1, $3); @}
+ | '(' exp ')' @{ $$ = $2; @}
+;
+@end group
+/* End of grammar. */
+%%
+@end smallexample
+
+@node Mfcalc Symtab
+@subsection The @code{mfcalc} Symbol Table
+@cindex symbol table example
+
+The multi-function calculator requires a symbol table to keep track of the
+names and meanings of variables and functions. This doesn't affect the
+grammar rules (except for the actions) or the Bison declarations, but it
+requires some additional C functions for support.
+
+The symbol table itself consists of a linked list of records. Its
+definition, which is kept in the header @file{calc.h}, is as follows. It
+provides for either functions or variables to be placed in the table.
+
+@smallexample
+@group
+/* Function type. */
+typedef double (*func_t) (double);
+@end group
+
+@group
+/* Data type for links in the chain of symbols. */
+struct symrec
+@{
+ char *name; /* name of symbol */
+ int type; /* type of symbol: either VAR or FNCT */
+ union
+ @{
+ double var; /* value of a VAR */
+ func_t fnctptr; /* value of a FNCT */
+ @} value;
+ struct symrec *next; /* link field */
+@};
+@end group
+
+@group
+typedef struct symrec symrec;
+
+/* The symbol table: a chain of `struct symrec'. */
+extern symrec *sym_table;
+
+symrec *putsym (char const *, int);
+symrec *getsym (char const *);
+@end group
+@end smallexample
+
+The new version of @code{main} includes a call to @code{init_table}, a
+function that initializes the symbol table. Here it is, and
+@code{init_table} as well:
+
+@smallexample
+#include <stdio.h>
+
+@group
+/* Called by yyparse on error. */
+void
+yyerror (char const *s)
+@{
+ printf ("%s\n", s);
+@}
+@end group
+
+@group
+struct init
+@{
+ char const *fname;
+ double (*fnct) (double);
+@};
+@end group
+
+@group
+struct init const arith_fncts[] =
+@{
+ "sin", sin,
+ "cos", cos,
+ "atan", atan,
+ "ln", log,
+ "exp", exp,
+ "sqrt", sqrt,
+ 0, 0
+@};
+@end group
+
+@group
+/* The symbol table: a chain of `struct symrec'. */
+symrec *sym_table;
+@end group
+
+@group
+/* Put arithmetic functions in table. */
+void
+init_table (void)
+@{
+ int i;
+ symrec *ptr;
+ for (i = 0; arith_fncts[i].fname != 0; i++)
+ @{
+ ptr = putsym (arith_fncts[i].fname, FNCT);
+ ptr->value.fnctptr = arith_fncts[i].fnct;
+ @}
+@}
+@end group
+
+@group
+int
+main (void)
+@{
+ init_table ();
+ return yyparse ();
+@}
+@end group
+@end smallexample
+
+By simply editing the initialization list and adding the necessary include
+files, you can add additional functions to the calculator.
+
+Two important functions allow look-up and installation of symbols in the
+symbol table. The function @code{putsym} is passed a name and the type
+(@code{VAR} or @code{FNCT}) of the object to be installed. The object is
+linked to the front of the list, and a pointer to the object is returned.
+The function @code{getsym} is passed the name of the symbol to look up. If
+found, a pointer to that symbol is returned; otherwise zero is returned.
+
+@smallexample
+symrec *
+putsym (char const *sym_name, int sym_type)
+@{
+ symrec *ptr;
+ ptr = (symrec *) malloc (sizeof (symrec));
+ ptr->name = (char *) malloc (strlen (sym_name) + 1);
+ strcpy (ptr->name,sym_name);
+ ptr->type = sym_type;
+ ptr->value.var = 0; /* Set value to 0 even if fctn. */
+ ptr->next = (struct symrec *)sym_table;
+ sym_table = ptr;
+ return ptr;
+@}
+
+symrec *
+getsym (char const *sym_name)
+@{
+ symrec *ptr;
+ for (ptr = sym_table; ptr != (symrec *) 0;
+ ptr = (symrec *)ptr->next)
+ if (strcmp (ptr->name,sym_name) == 0)
+ return ptr;
+ return 0;
+@}
+@end smallexample
+
+The function @code{yylex} must now recognize variables, numeric values, and
+the single-character arithmetic operators. Strings of alphanumeric
+characters with a leading letter are recognized as either variables or
+functions depending on what the symbol table says about them.
+
+The string is passed to @code{getsym} for look up in the symbol table. If
+the name appears in the table, a pointer to its location and its type
+(@code{VAR} or @code{FNCT}) is returned to @code{yyparse}. If it is not
+already in the table, then it is installed as a @code{VAR} using
+@code{putsym}. Again, a pointer and its type (which must be @code{VAR}) is
+returned to @code{yyparse}.
+
+No change is needed in the handling of numeric values and arithmetic
+operators in @code{yylex}.
+
+@smallexample
+@group
+#include <ctype.h>
+@end group
+
+@group
+int
+yylex (void)
+@{
+ int c;
+
+ /* Ignore white space, get first nonwhite character. */
+ while ((c = getchar ()) == ' ' || c == '\t');
+
+ if (c == EOF)
+ return 0;
+@end group
+
+@group
+ /* Char starts a number => parse the number. */
+ if (c == '.' || isdigit (c))
+ @{
+ ungetc (c, stdin);
+ scanf ("%lf", &yylval.val);
+ return NUM;
+ @}
+@end group
+
+@group
+ /* Char starts an identifier => read the name. */
+ if (isalpha (c))
+ @{
+ symrec *s;
+ static char *symbuf = 0;
+ static int length = 0;
+ int i;
+@end group
+
+@group
+ /* Initially make the buffer long enough
+ for a 40-character symbol name. */
+ if (length == 0)
+ length = 40, symbuf = (char *)malloc (length + 1);
+
+ i = 0;
+ do
+@end group
+@group
+ @{
+ /* If buffer is full, make it bigger. */
+ if (i == length)
+ @{
+ length *= 2;
+ symbuf = (char *) realloc (symbuf, length + 1);
+ @}
+ /* Add this character to the buffer. */
+ symbuf[i++] = c;
+ /* Get another character. */
+ c = getchar ();
+ @}
+@end group
+@group
+ while (isalnum (c));
+
+ ungetc (c, stdin);
+ symbuf[i] = '\0';
+@end group
+
+@group
+ s = getsym (symbuf);
+ if (s == 0)
+ s = putsym (symbuf, VAR);
+ yylval.tptr = s;
+ return s->type;
+ @}
+
+ /* Any other character is a token by itself. */
+ return c;
+@}
+@end group
+@end smallexample
+
+This program is both powerful and flexible. You may easily add new
+functions, and it is a simple job to modify this code to install
+predefined variables such as @code{pi} or @code{e} as well.
+
+@node Exercises
+@section Exercises
+@cindex exercises
+
+@enumerate
+@item
+Add some new functions from @file{math.h} to the initialization list.
+
+@item
+Add another array that contains constants and their values. Then
+modify @code{init_table} to add these constants to the symbol table.
+It will be easiest to give the constants type @code{VAR}.
+
+@item
+Make the program report an error if the user refers to an
+uninitialized variable in any way except to store a value in it.
+@end enumerate
+
+@node Grammar File
+@chapter Bison Grammar Files
+
+Bison takes as input a context-free grammar specification and produces a
+C-language function that recognizes correct instances of the grammar.
+
+The Bison grammar input file conventionally has a name ending in @samp{.y}.
+@xref{Invocation, ,Invoking Bison}.
+
+@menu
+* Grammar Outline:: Overall layout of the grammar file.
+* Symbols:: Terminal and nonterminal symbols.
+* Rules:: How to write grammar rules.
+* Recursion:: Writing recursive rules.
+* Semantics:: Semantic values and actions.
+* Locations:: Locations and actions.
+* Declarations:: All kinds of Bison declarations are described here.
+* Multiple Parsers:: Putting more than one Bison parser in one program.
+@end menu
+
+@node Grammar Outline
+@section Outline of a Bison Grammar
+
+A Bison grammar file has four main sections, shown here with the
+appropriate delimiters:
+
+@example
+%@{
+ @var{Prologue}
+%@}
+
+@var{Bison declarations}
+
+%%
+@var{Grammar rules}
+%%
+
+@var{Epilogue}
+@end example
+
+Comments enclosed in @samp{/* @dots{} */} may appear in any of the sections.
+As a @acronym{GNU} extension, @samp{//} introduces a comment that
+continues until end of line.
+
+@menu
+* Prologue:: Syntax and usage of the prologue.
+* Bison Declarations:: Syntax and usage of the Bison declarations section.
+* Grammar Rules:: Syntax and usage of the grammar rules section.
+* Epilogue:: Syntax and usage of the epilogue.
+@end menu
+
+@node Prologue
+@subsection The prologue
+@cindex declarations section
+@cindex Prologue
+@cindex declarations
+
+The @var{Prologue} section contains macro definitions and declarations
+of functions and variables that are used in the actions in the grammar
+rules. These are copied to the beginning of the parser file so that
+they precede the definition of @code{yyparse}. You can use
+@samp{#include} to get the declarations from a header file. If you
+don't need any C declarations, you may omit the @samp{%@{} and
+@samp{%@}} delimiters that bracket this section.
+
+The @var{Prologue} section is terminated by the the first occurrence
+of @samp{%@}} that is outside a comment, a string literal, or a
+character constant.
+
+You may have more than one @var{Prologue} section, intermixed with the
+@var{Bison declarations}. This allows you to have C and Bison
+declarations that refer to each other. For example, the @code{%union}
+declaration may use types defined in a header file, and you may wish to
+prototype functions that take arguments of type @code{YYSTYPE}. This
+can be done with two @var{Prologue} blocks, one before and one after the
+@code{%union} declaration.
+
+@smallexample
+%@{
+ #include <stdio.h>
+ #include "ptypes.h"
+%@}
+
+%union @{
+ long int n;
+ tree t; /* @r{@code{tree} is defined in @file{ptypes.h}.} */
+@}
+
+%@{
+ static void print_token_value (FILE *, int, YYSTYPE);
+ #define YYPRINT(F, N, L) print_token_value (F, N, L)
+%@}
+
+@dots{}
+@end smallexample
+
+@node Bison Declarations
+@subsection The Bison Declarations Section
+@cindex Bison declarations (introduction)
+@cindex declarations, Bison (introduction)
+
+The @var{Bison declarations} section contains declarations that define
+terminal and nonterminal symbols, specify precedence, and so on.
+In some simple grammars you may not need any declarations.
+@xref{Declarations, ,Bison Declarations}.
+
+@node Grammar Rules
+@subsection The Grammar Rules Section
+@cindex grammar rules section
+@cindex rules section for grammar
+
+The @dfn{grammar rules} section contains one or more Bison grammar
+rules, and nothing else. @xref{Rules, ,Syntax of Grammar Rules}.
+
+There must always be at least one grammar rule, and the first
+@samp{%%} (which precedes the grammar rules) may never be omitted even
+if it is the first thing in the file.
+
+@node Epilogue
+@subsection The epilogue
+@cindex additional C code section
+@cindex epilogue
+@cindex C code, section for additional
+
+The @var{Epilogue} is copied verbatim to the end of the parser file, just as
+the @var{Prologue} is copied to the beginning. This is the most convenient
+place to put anything that you want to have in the parser file but which need
+not come before the definition of @code{yyparse}. For example, the
+definitions of @code{yylex} and @code{yyerror} often go here. Because
+C requires functions to be declared before being used, you often need
+to declare functions like @code{yylex} and @code{yyerror} in the Prologue,
+even if you define them in the Epilogue.
+@xref{Interface, ,Parser C-Language Interface}.
+
+If the last section is empty, you may omit the @samp{%%} that separates it
+from the grammar rules.
+
+The Bison parser itself contains many macros and identifiers whose names
+start with @samp{yy} or @samp{YY}, so it is a good idea to avoid using
+any such names (except those documented in this manual) in the epilogue
+of the grammar file.
+
+@node Symbols
+@section Symbols, Terminal and Nonterminal
+@cindex nonterminal symbol
+@cindex terminal symbol
+@cindex token type
+@cindex symbol
+
+@dfn{Symbols} in Bison grammars represent the grammatical classifications
+of the language.
+
+A @dfn{terminal symbol} (also known as a @dfn{token type}) represents a
+class of syntactically equivalent tokens. You use the symbol in grammar
+rules to mean that a token in that class is allowed. The symbol is
+represented in the Bison parser by a numeric code, and the @code{yylex}
+function returns a token type code to indicate what kind of token has
+been read. You don't need to know what the code value is; you can use
+the symbol to stand for it.
+
+A @dfn{nonterminal symbol} stands for a class of syntactically
+equivalent groupings. The symbol name is used in writing grammar rules.
+By convention, it should be all lower case.
+
+Symbol names can contain letters, digits (not at the beginning),
+underscores and periods. Periods make sense only in nonterminals.
+
+There are three ways of writing terminal symbols in the grammar:
+
+@itemize @bullet
+@item
+A @dfn{named token type} is written with an identifier, like an
+identifier in C@. By convention, it should be all upper case. Each
+such name must be defined with a Bison declaration such as
+@code{%token}. @xref{Token Decl, ,Token Type Names}.
+
+@item
+@cindex character token
+@cindex literal token
+@cindex single-character literal
+A @dfn{character token type} (or @dfn{literal character token}) is
+written in the grammar using the same syntax used in C for character
+constants; for example, @code{'+'} is a character token type. A
+character token type doesn't need to be declared unless you need to
+specify its semantic value data type (@pxref{Value Type, ,Data Types of
+Semantic Values}), associativity, or precedence (@pxref{Precedence,
+,Operator Precedence}).
+
+By convention, a character token type is used only to represent a
+token that consists of that particular character. Thus, the token
+type @code{'+'} is used to represent the character @samp{+} as a
+token. Nothing enforces this convention, but if you depart from it,
+your program will confuse other readers.
+
+All the usual escape sequences used in character literals in C can be
+used in Bison as well, but you must not use the null character as a
+character literal because its numeric code, zero, signifies
+end-of-input (@pxref{Calling Convention, ,Calling Convention
+for @code{yylex}}). Also, unlike standard C, trigraphs have no
+special meaning in Bison character literals, nor is backslash-newline
+allowed.
+
+@item
+@cindex string token
+@cindex literal string token
+@cindex multicharacter literal
+A @dfn{literal string token} is written like a C string constant; for
+example, @code{"<="} is a literal string token. A literal string token
+doesn't need to be declared unless you need to specify its semantic
+value data type (@pxref{Value Type}), associativity, or precedence
+(@pxref{Precedence}).
+
+You can associate the literal string token with a symbolic name as an
+alias, using the @code{%token} declaration (@pxref{Token Decl, ,Token
+Declarations}). If you don't do that, the lexical analyzer has to
+retrieve the token number for the literal string token from the
+@code{yytname} table (@pxref{Calling Convention}).
+
+@strong{Warning}: literal string tokens do not work in Yacc.
+
+By convention, a literal string token is used only to represent a token
+that consists of that particular string. Thus, you should use the token
+type @code{"<="} to represent the string @samp{<=} as a token. Bison
+does not enforce this convention, but if you depart from it, people who
+read your program will be confused.
+
+All the escape sequences used in string literals in C can be used in
+Bison as well, except that you must not use a null character within a
+string literal. Also, unlike Standard C, trigraphs have no special
+meaning in Bison string literals, nor is backslash-newline allowed. A
+literal string token must contain two or more characters; for a token
+containing just one character, use a character token (see above).
+@end itemize
+
+How you choose to write a terminal symbol has no effect on its
+grammatical meaning. That depends only on where it appears in rules and
+on when the parser function returns that symbol.
+
+The value returned by @code{yylex} is always one of the terminal
+symbols, except that a zero or negative value signifies end-of-input.
+Whichever way you write the token type in the grammar rules, you write
+it the same way in the definition of @code{yylex}. The numeric code
+for a character token type is simply the positive numeric code of the
+character, so @code{yylex} can use the identical value to generate the
+requisite code, though you may need to convert it to @code{unsigned
+char} to avoid sign-extension on hosts where @code{char} is signed.
+Each named token type becomes a C macro in
+the parser file, so @code{yylex} can use the name to stand for the code.
+(This is why periods don't make sense in terminal symbols.)
+@xref{Calling Convention, ,Calling Convention for @code{yylex}}.
+
+If @code{yylex} is defined in a separate file, you need to arrange for the
+token-type macro definitions to be available there. Use the @samp{-d}
+option when you run Bison, so that it will write these macro definitions
+into a separate header file @file{@var{name}.tab.h} which you can include
+in the other source files that need it. @xref{Invocation, ,Invoking Bison}.
+
+If you want to write a grammar that is portable to any Standard C
+host, you must use only nonnull character tokens taken from the basic
+execution character set of Standard C@. This set consists of the ten
+digits, the 52 lower- and upper-case English letters, and the
+characters in the following C-language string:
+
+@example
+"\a\b\t\n\v\f\r !\"#%&'()*+,-./:;<=>?[\\]^_@{|@}~"
+@end example
+
+The @code{yylex} function and Bison must use a consistent character set
+and encoding for character tokens. For example, if you run Bison in an
+@acronym{ASCII} environment, but then compile and run the resulting
+program in an environment that uses an incompatible character set like
+@acronym{EBCDIC}, the resulting program may not work because the tables
+generated by Bison will assume @acronym{ASCII} numeric values for
+character tokens. It is standard practice for software distributions to
+contain C source files that were generated by Bison in an
+@acronym{ASCII} environment, so installers on platforms that are
+incompatible with @acronym{ASCII} must rebuild those files before
+compiling them.
+
+The symbol @code{error} is a terminal symbol reserved for error recovery
+(@pxref{Error Recovery}); you shouldn't use it for any other purpose.
+In particular, @code{yylex} should never return this value. The default
+value of the error token is 256, unless you explicitly assigned 256 to
+one of your tokens with a @code{%token} declaration.
+
+@node Rules
+@section Syntax of Grammar Rules
+@cindex rule syntax
+@cindex grammar rule syntax
+@cindex syntax of grammar rules
+
+A Bison grammar rule has the following general form:
+
+@example
+@group
+@var{result}: @var{components}@dots{}
+ ;
+@end group
+@end example
+
+@noindent
+where @var{result} is the nonterminal symbol that this rule describes,
+and @var{components} are various terminal and nonterminal symbols that
+are put together by this rule (@pxref{Symbols}).
+
+For example,
+
+@example
+@group
+exp: exp '+' exp
+ ;
+@end group
+@end example
+
+@noindent
+says that two groupings of type @code{exp}, with a @samp{+} token in between,
+can be combined into a larger grouping of type @code{exp}.
+
+White space in rules is significant only to separate symbols. You can add
+extra white space as you wish.
+
+Scattered among the components can be @var{actions} that determine
+the semantics of the rule. An action looks like this:
+
+@example
+@{@var{C statements}@}
+@end example
+
+@noindent
+@cindex braced code
+This is an example of @dfn{braced code}, that is, C code surrounded by
+braces, much like a compound statement in C@. Braced code can contain
+any sequence of C tokens, so long as its braces are balanced. Bison
+does not check the braced code for correctness directly; it merely
+copies the code to the output file, where the C compiler can check it.
+
+Within braced code, the balanced-brace count is not affected by braces
+within comments, string literals, or character constants, but it is
+affected by the C digraphs @samp{<%} and @samp{%>} that represent
+braces. At the top level braced code must be terminated by @samp{@}}
+and not by a digraph. Bison does not look for trigraphs, so if braced
+code uses trigraphs you should ensure that they do not affect the
+nesting of braces or the boundaries of comments, string literals, or
+character constants.
+
+Usually there is only one action and it follows the components.
+@xref{Actions}.
+
+@findex |
+Multiple rules for the same @var{result} can be written separately or can
+be joined with the vertical-bar character @samp{|} as follows:
+
+@example
+@group
+@var{result}: @var{rule1-components}@dots{}
+ | @var{rule2-components}@dots{}
+ @dots{}
+ ;
+@end group
+@end example
+
+@noindent
+They are still considered distinct rules even when joined in this way.
+
+If @var{components} in a rule is empty, it means that @var{result} can
+match the empty string. For example, here is how to define a
+comma-separated sequence of zero or more @code{exp} groupings:
+
+@example
+@group
+expseq: /* empty */
+ | expseq1
+ ;
+@end group
+
+@group
+expseq1: exp
+ | expseq1 ',' exp
+ ;
+@end group
+@end example
+
+@noindent
+It is customary to write a comment @samp{/* empty */} in each rule
+with no components.
+
+@node Recursion
+@section Recursive Rules
+@cindex recursive rule
+
+A rule is called @dfn{recursive} when its @var{result} nonterminal
+appears also on its right hand side. Nearly all Bison grammars need to
+use recursion, because that is the only way to define a sequence of any
+number of a particular thing. Consider this recursive definition of a
+comma-separated sequence of one or more expressions:
+
+@example
+@group
+expseq1: exp
+ | expseq1 ',' exp
+ ;
+@end group
+@end example
+
+@cindex left recursion
+@cindex right recursion
+@noindent
+Since the recursive use of @code{expseq1} is the leftmost symbol in the
+right hand side, we call this @dfn{left recursion}. By contrast, here
+the same construct is defined using @dfn{right recursion}:
+
+@example
+@group
+expseq1: exp
+ | exp ',' expseq1
+ ;
+@end group
+@end example
+
+@noindent
+Any kind of sequence can be defined using either left recursion or right
+recursion, but you should always use left recursion, because it can
+parse a sequence of any number of elements with bounded stack space.
+Right recursion uses up space on the Bison stack in proportion to the
+number of elements in the sequence, because all the elements must be
+shifted onto the stack before the rule can be applied even once.
+@xref{Algorithm, ,The Bison Parser Algorithm}, for further explanation
+of this.
+
+@cindex mutual recursion
+@dfn{Indirect} or @dfn{mutual} recursion occurs when the result of the
+rule does not appear directly on its right hand side, but does appear
+in rules for other nonterminals which do appear on its right hand
+side.
+
+For example:
+
+@example
+@group
+expr: primary
+ | primary '+' primary
+ ;
+@end group
+
+@group
+primary: constant
+ | '(' expr ')'
+ ;
+@end group
+@end example
+
+@noindent
+defines two mutually-recursive nonterminals, since each refers to the
+other.
+
+@node Semantics
+@section Defining Language Semantics
+@cindex defining language semantics
+@cindex language semantics, defining
+
+The grammar rules for a language determine only the syntax. The semantics
+are determined by the semantic values associated with various tokens and
+groupings, and by the actions taken when various groupings are recognized.
+
+For example, the calculator calculates properly because the value
+associated with each expression is the proper number; it adds properly
+because the action for the grouping @w{@samp{@var{x} + @var{y}}} is to add
+the numbers associated with @var{x} and @var{y}.
+
+@menu
+* Value Type:: Specifying one data type for all semantic values.
+* Multiple Types:: Specifying several alternative data types.
+* Actions:: An action is the semantic definition of a grammar rule.
+* Action Types:: Specifying data types for actions to operate on.
+* Mid-Rule Actions:: Most actions go at the end of a rule.
+ This says when, why and how to use the exceptional
+ action in the middle of a rule.
+@end menu
+
+@node Value Type
+@subsection Data Types of Semantic Values
+@cindex semantic value type
+@cindex value type, semantic
+@cindex data types of semantic values
+@cindex default data type
+
+In a simple program it may be sufficient to use the same data type for
+the semantic values of all language constructs. This was true in the
+@acronym{RPN} and infix calculator examples (@pxref{RPN Calc, ,Reverse Polish
+Notation Calculator}).
+
+Bison's default is to use type @code{int} for all semantic values. To
+specify some other type, define @code{YYSTYPE} as a macro, like this:
+
+@example
+#define YYSTYPE double
+@end example
+
+@noindent
+@code{YYSTYPE}'s replacement list should be a type name
+that does not contain parentheses or square brackets.
+This macro definition must go in the prologue of the grammar file
+(@pxref{Grammar Outline, ,Outline of a Bison Grammar}).
+
+@node Multiple Types
+@subsection More Than One Value Type
+
+In most programs, you will need different data types for different kinds
+of tokens and groupings. For example, a numeric constant may need type
+@code{int} or @code{long int}, while a string constant needs type
+@code{char *}, and an identifier might need a pointer to an entry in the
+symbol table.
+
+To use more than one data type for semantic values in one parser, Bison
+requires you to do two things:
+
+@itemize @bullet
+@item
+Specify the entire collection of possible data types, with the
+@code{%union} Bison declaration (@pxref{Union Decl, ,The Collection of
+Value Types}).
+
+@item
+Choose one of those types for each symbol (terminal or nonterminal) for
+which semantic values are used. This is done for tokens with the
+@code{%token} Bison declaration (@pxref{Token Decl, ,Token Type Names})
+and for groupings with the @code{%type} Bison declaration (@pxref{Type
+Decl, ,Nonterminal Symbols}).
+@end itemize
+
+@node Actions
+@subsection Actions
+@cindex action
+@vindex $$
+@vindex $@var{n}
+
+An action accompanies a syntactic rule and contains C code to be executed
+each time an instance of that rule is recognized. The task of most actions
+is to compute a semantic value for the grouping built by the rule from the
+semantic values associated with tokens or smaller groupings.
+
+An action consists of braced code containing C statements, and can be
+placed at any position in the rule;
+it is executed at that position. Most rules have just one action at the
+end of the rule, following all the components. Actions in the middle of
+a rule are tricky and used only for special purposes (@pxref{Mid-Rule
+Actions, ,Actions in Mid-Rule}).
+
+The C code in an action can refer to the semantic values of the components
+matched by the rule with the construct @code{$@var{n}}, which stands for
+the value of the @var{n}th component. The semantic value for the grouping
+being constructed is @code{$$}. Bison translates both of these
+constructs into expressions of the appropriate type when it copies the
+actions into the parser file. @code{$$} is translated to a modifiable
+lvalue, so it can be assigned to.
+
+Here is a typical example:
+
+@example
+@group
+exp: @dots{}
+ | exp '+' exp
+ @{ $$ = $1 + $3; @}
+@end group
+@end example
+
+@noindent
+This rule constructs an @code{exp} from two smaller @code{exp} groupings
+connected by a plus-sign token. In the action, @code{$1} and @code{$3}
+refer to the semantic values of the two component @code{exp} groupings,
+which are the first and third symbols on the right hand side of the rule.
+The sum is stored into @code{$$} so that it becomes the semantic value of
+the addition-expression just recognized by the rule. If there were a
+useful semantic value associated with the @samp{+} token, it could be
+referred to as @code{$2}.
+
+Note that the vertical-bar character @samp{|} is really a rule
+separator, and actions are attached to a single rule. This is a
+difference with tools like Flex, for which @samp{|} stands for either
+``or'', or ``the same action as that of the next rule''. In the
+following example, the action is triggered only when @samp{b} is found:
+
+@example
+@group
+a-or-b: 'a'|'b' @{ a_or_b_found = 1; @};
+@end group
+@end example
+
+@cindex default action
+If you don't specify an action for a rule, Bison supplies a default:
+@w{@code{$$ = $1}.} Thus, the value of the first symbol in the rule
+becomes the value of the whole rule. Of course, the default action is
+valid only if the two data types match. There is no meaningful default
+action for an empty rule; every empty rule must have an explicit action
+unless the rule's value does not matter.
+
+@code{$@var{n}} with @var{n} zero or negative is allowed for reference
+to tokens and groupings on the stack @emph{before} those that match the
+current rule. This is a very risky practice, and to use it reliably
+you must be certain of the context in which the rule is applied. Here
+is a case in which you can use this reliably:
+
+@example
+@group
+foo: expr bar '+' expr @{ @dots{} @}
+ | expr bar '-' expr @{ @dots{} @}
+ ;
+@end group
+
+@group
+bar: /* empty */
+ @{ previous_expr = $0; @}
+ ;
+@end group
+@end example
+
+As long as @code{bar} is used only in the fashion shown here, @code{$0}
+always refers to the @code{expr} which precedes @code{bar} in the
+definition of @code{foo}.
+
+@vindex yylval
+It is also possible to access the semantic value of the look-ahead token, if
+any, from a semantic action.
+This semantic value is stored in @code{yylval}.
+@xref{Action Features, ,Special Features for Use in Actions}.
+
+@node Action Types
+@subsection Data Types of Values in Actions
+@cindex action data types
+@cindex data types in actions
+
+If you have chosen a single data type for semantic values, the @code{$$}
+and @code{$@var{n}} constructs always have that data type.
+
+If you have used @code{%union} to specify a variety of data types, then you
+must declare a choice among these types for each terminal or nonterminal
+symbol that can have a semantic value. Then each time you use @code{$$} or
+@code{$@var{n}}, its data type is determined by which symbol it refers to
+in the rule. In this example,
+
+@example
+@group
+exp: @dots{}
+ | exp '+' exp
+ @{ $$ = $1 + $3; @}
+@end group
+@end example
+
+@noindent
+@code{$1} and @code{$3} refer to instances of @code{exp}, so they all
+have the data type declared for the nonterminal symbol @code{exp}. If
+@code{$2} were used, it would have the data type declared for the
+terminal symbol @code{'+'}, whatever that might be.
+
+Alternatively, you can specify the data type when you refer to the value,
+by inserting @samp{<@var{type}>} after the @samp{$} at the beginning of the
+reference. For example, if you have defined types as shown here:
+
+@example
+@group
+%union @{
+ int itype;
+ double dtype;
+@}
+@end group
+@end example
+
+@noindent
+then you can write @code{$<itype>1} to refer to the first subunit of the
+rule as an integer, or @code{$<dtype>1} to refer to it as a double.
+
+@node Mid-Rule Actions
+@subsection Actions in Mid-Rule
+@cindex actions in mid-rule
+@cindex mid-rule actions
+
+Occasionally it is useful to put an action in the middle of a rule.
+These actions are written just like usual end-of-rule actions, but they
+are executed before the parser even recognizes the following components.
+
+A mid-rule action may refer to the components preceding it using
+@code{$@var{n}}, but it may not refer to subsequent components because
+it is run before they are parsed.
+
+The mid-rule action itself counts as one of the components of the rule.
+This makes a difference when there is another action later in the same rule
+(and usually there is another at the end): you have to count the actions
+along with the symbols when working out which number @var{n} to use in
+@code{$@var{n}}.
+
+The mid-rule action can also have a semantic value. The action can set
+its value with an assignment to @code{$$}, and actions later in the rule
+can refer to the value using @code{$@var{n}}. Since there is no symbol
+to name the action, there is no way to declare a data type for the value
+in advance, so you must use the @samp{$<@dots{}>@var{n}} construct to
+specify a data type each time you refer to this value.
+
+There is no way to set the value of the entire rule with a mid-rule
+action, because assignments to @code{$$} do not have that effect. The
+only way to set the value for the entire rule is with an ordinary action
+at the end of the rule.
+
+Here is an example from a hypothetical compiler, handling a @code{let}
+statement that looks like @samp{let (@var{variable}) @var{statement}} and
+serves to create a variable named @var{variable} temporarily for the
+duration of @var{statement}. To parse this construct, we must put
+@var{variable} into the symbol table while @var{statement} is parsed, then
+remove it afterward. Here is how it is done:
+
+@example
+@group
+stmt: LET '(' var ')'
+ @{ $<context>$ = push_context ();
+ declare_variable ($3); @}
+ stmt @{ $$ = $6;
+ pop_context ($<context>5); @}
+@end group
+@end example
+
+@noindent
+As soon as @samp{let (@var{variable})} has been recognized, the first
+action is run. It saves a copy of the current semantic context (the
+list of accessible variables) as its semantic value, using alternative
+@code{context} in the data-type union. Then it calls
+@code{declare_variable} to add the new variable to that list. Once the
+first action is finished, the embedded statement @code{stmt} can be
+parsed. Note that the mid-rule action is component number 5, so the
+@samp{stmt} is component number 6.
+
+After the embedded statement is parsed, its semantic value becomes the
+value of the entire @code{let}-statement. Then the semantic value from the
+earlier action is used to restore the prior list of variables. This
+removes the temporary @code{let}-variable from the list so that it won't
+appear to exist while the rest of the program is parsed.
+
+@findex %destructor
+@cindex discarded symbols, mid-rule actions
+@cindex error recovery, mid-rule actions
+In the above example, if the parser initiates error recovery (@pxref{Error
+Recovery}) while parsing the tokens in the embedded statement @code{stmt},
+it might discard the previous semantic context @code{$<context>5} without
+restoring it.
+Thus, @code{$<context>5} needs a destructor (@pxref{Destructor Decl, , Freeing
+Discarded Symbols}).
+However, Bison currently provides no means to declare a destructor for a
+mid-rule action's semantic value.
+
+One solution is to bury the mid-rule action inside a nonterminal symbol and to
+declare a destructor for that symbol:
+
+@example
+@group
+%type <context> let
+%destructor @{ pop_context ($$); @} let
+
+%%
+
+stmt: let stmt
+ @{ $$ = $2;
+ pop_context ($1); @}
+ ;
+
+let: LET '(' var ')'
+ @{ $$ = push_context ();
+ declare_variable ($3); @}
+ ;
+
+@end group
+@end example
+
+@noindent
+Note that the action is now at the end of its rule.
+Any mid-rule action can be converted to an end-of-rule action in this way, and
+this is what Bison actually does to implement mid-rule actions.
+
+Taking action before a rule is completely recognized often leads to
+conflicts since the parser must commit to a parse in order to execute the
+action. For example, the following two rules, without mid-rule actions,
+can coexist in a working parser because the parser can shift the open-brace
+token and look at what follows before deciding whether there is a
+declaration or not:
+
+@example
+@group
+compound: '@{' declarations statements '@}'
+ | '@{' statements '@}'
+ ;
+@end group
+@end example
+
+@noindent
+But when we add a mid-rule action as follows, the rules become nonfunctional:
+
+@example
+@group
+compound: @{ prepare_for_local_variables (); @}
+ '@{' declarations statements '@}'
+@end group
+@group
+ | '@{' statements '@}'
+ ;
+@end group
+@end example
+
+@noindent
+Now the parser is forced to decide whether to run the mid-rule action
+when it has read no farther than the open-brace. In other words, it
+must commit to using one rule or the other, without sufficient
+information to do it correctly. (The open-brace token is what is called
+the @dfn{look-ahead} token at this time, since the parser is still
+deciding what to do about it. @xref{Look-Ahead, ,Look-Ahead Tokens}.)
+
+You might think that you could correct the problem by putting identical
+actions into the two rules, like this:
+
+@example
+@group
+compound: @{ prepare_for_local_variables (); @}
+ '@{' declarations statements '@}'
+ | @{ prepare_for_local_variables (); @}
+ '@{' statements '@}'
+ ;
+@end group
+@end example
+
+@noindent
+But this does not help, because Bison does not realize that the two actions
+are identical. (Bison never tries to understand the C code in an action.)
+
+If the grammar is such that a declaration can be distinguished from a
+statement by the first token (which is true in C), then one solution which
+does work is to put the action after the open-brace, like this:
+
+@example
+@group
+compound: '@{' @{ prepare_for_local_variables (); @}
+ declarations statements '@}'
+ | '@{' statements '@}'
+ ;
+@end group
+@end example
+
+@noindent
+Now the first token of the following declaration or statement,
+which would in any case tell Bison which rule to use, can still do so.
+
+Another solution is to bury the action inside a nonterminal symbol which
+serves as a subroutine:
+
+@example
+@group
+subroutine: /* empty */
+ @{ prepare_for_local_variables (); @}
+ ;
+
+@end group
+
+@group
+compound: subroutine
+ '@{' declarations statements '@}'
+ | subroutine
+ '@{' statements '@}'
+ ;
+@end group
+@end example
+
+@noindent
+Now Bison can execute the action in the rule for @code{subroutine} without
+deciding which rule for @code{compound} it will eventually use.
+
+@node Locations
+@section Tracking Locations
+@cindex location
+@cindex textual location
+@cindex location, textual
+
+Though grammar rules and semantic actions are enough to write a fully
+functional parser, it can be useful to process some additional information,
+especially symbol locations.
+
+The way locations are handled is defined by providing a data type, and
+actions to take when rules are matched.
+
+@menu
+* Location Type:: Specifying a data type for locations.
+* Actions and Locations:: Using locations in actions.
+* Location Default Action:: Defining a general way to compute locations.
+@end menu
+
+@node Location Type
+@subsection Data Type of Locations
+@cindex data type of locations
+@cindex default location type
+
+Defining a data type for locations is much simpler than for semantic values,
+since all tokens and groupings always use the same type.
+
+You can specify the type of locations by defining a macro called
+@code{YYLTYPE}, just as you can specify the semantic value type by
+defining @code{YYSTYPE} (@pxref{Value Type}).
+When @code{YYLTYPE} is not defined, Bison uses a default structure type with
+four members:
+
+@example
+typedef struct YYLTYPE
+@{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+@} YYLTYPE;
+@end example
+
+@node Actions and Locations
+@subsection Actions and Locations
+@cindex location actions
+@cindex actions, location
+@vindex @@$
+@vindex @@@var{n}
+
+Actions are not only useful for defining language semantics, but also for
+describing the behavior of the output parser with locations.
+
+The most obvious way for building locations of syntactic groupings is very
+similar to the way semantic values are computed. In a given rule, several
+constructs can be used to access the locations of the elements being matched.
+The location of the @var{n}th component of the right hand side is
+@code{@@@var{n}}, while the location of the left hand side grouping is
+@code{@@$}.
+
+Here is a basic example using the default data type for locations:
+
+@example
+@group
+exp: @dots{}
+ | exp '/' exp
+ @{
+ @@$.first_column = @@1.first_column;
+ @@$.first_line = @@1.first_line;
+ @@$.last_column = @@3.last_column;
+ @@$.last_line = @@3.last_line;
+ if ($3)
+ $$ = $1 / $3;
+ else
+ @{
+ $$ = 1;
+ fprintf (stderr,
+ "Division by zero, l%d,c%d-l%d,c%d",
+ @@3.first_line, @@3.first_column,
+ @@3.last_line, @@3.last_column);
+ @}
+ @}
+@end group
+@end example
+
+As for semantic values, there is a default action for locations that is
+run each time a rule is matched. It sets the beginning of @code{@@$} to the
+beginning of the first symbol, and the end of @code{@@$} to the end of the
+last symbol.
+
+With this default action, the location tracking can be fully automatic. The
+example above simply rewrites this way:
+
+@example
+@group
+exp: @dots{}
+ | exp '/' exp
+ @{
+ if ($3)
+ $$ = $1 / $3;
+ else
+ @{
+ $$ = 1;
+ fprintf (stderr,
+ "Division by zero, l%d,c%d-l%d,c%d",
+ @@3.first_line, @@3.first_column,
+ @@3.last_line, @@3.last_column);
+ @}
+ @}
+@end group
+@end example
+
+@vindex yylloc
+It is also possible to access the location of the look-ahead token, if any,
+from a semantic action.
+This location is stored in @code{yylloc}.
+@xref{Action Features, ,Special Features for Use in Actions}.
+
+@node Location Default Action
+@subsection Default Action for Locations
+@vindex YYLLOC_DEFAULT
+@cindex @acronym{GLR} parsers and @code{YYLLOC_DEFAULT}
+
+Actually, actions are not the best place to compute locations. Since
+locations are much more general than semantic values, there is room in
+the output parser to redefine the default action to take for each
+rule. The @code{YYLLOC_DEFAULT} macro is invoked each time a rule is
+matched, before the associated action is run. It is also invoked
+while processing a syntax error, to compute the error's location.
+Before reporting an unresolvable syntactic ambiguity, a @acronym{GLR}
+parser invokes @code{YYLLOC_DEFAULT} recursively to compute the location
+of that ambiguity.
+
+Most of the time, this macro is general enough to suppress location
+dedicated code from semantic actions.
+
+The @code{YYLLOC_DEFAULT} macro takes three parameters. The first one is
+the location of the grouping (the result of the computation). When a
+rule is matched, the second parameter identifies locations of
+all right hand side elements of the rule being matched, and the third
+parameter is the size of the rule's right hand side.
+When a @acronym{GLR} parser reports an ambiguity, which of multiple candidate
+right hand sides it passes to @code{YYLLOC_DEFAULT} is undefined.
+When processing a syntax error, the second parameter identifies locations
+of the symbols that were discarded during error processing, and the third
+parameter is the number of discarded symbols.
+
+By default, @code{YYLLOC_DEFAULT} is defined this way:
+
+@smallexample
+@group
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (N) \
+ @{ \
+ (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC(Rhs, N).last_column; \
+ @} \
+ else \
+ @{ \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC(Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC(Rhs, 0).last_column; \
+ @} \
+ while (0)
+@end group
+@end smallexample
+
+where @code{YYRHSLOC (rhs, k)} is the location of the @var{k}th symbol
+in @var{rhs} when @var{k} is positive, and the location of the symbol
+just before the reduction when @var{k} and @var{n} are both zero.
+
+When defining @code{YYLLOC_DEFAULT}, you should consider that:
+
+@itemize @bullet
+@item
+All arguments are free of side-effects. However, only the first one (the
+result) should be modified by @code{YYLLOC_DEFAULT}.
+
+@item
+For consistency with semantic actions, valid indexes within the
+right hand side range from 1 to @var{n}. When @var{n} is zero, only 0 is a
+valid index, and it refers to the symbol just before the reduction.
+During error processing @var{n} is always positive.
+
+@item
+Your macro should parenthesize its arguments, if need be, since the
+actual arguments may not be surrounded by parentheses. Also, your
+macro should expand to something that can be used as a single
+statement when it is followed by a semicolon.
+@end itemize
+
+@node Declarations
+@section Bison Declarations
+@cindex declarations, Bison
+@cindex Bison declarations
+
+The @dfn{Bison declarations} section of a Bison grammar defines the symbols
+used in formulating the grammar and the data types of semantic values.
+@xref{Symbols}.
+
+All token type names (but not single-character literal tokens such as
+@code{'+'} and @code{'*'}) must be declared. Nonterminal symbols must be
+declared if you need to specify which data type to use for the semantic
+value (@pxref{Multiple Types, ,More Than One Value Type}).
+
+The first rule in the file also specifies the start symbol, by default.
+If you want some other symbol to be the start symbol, you must declare
+it explicitly (@pxref{Language and Grammar, ,Languages and Context-Free
+Grammars}).
+
+@menu
+* Require Decl:: Requiring a Bison version.
+* Token Decl:: Declaring terminal symbols.
+* Precedence Decl:: Declaring terminals with precedence and associativity.
+* Union Decl:: Declaring the set of all semantic value types.
+* Type Decl:: Declaring the choice of type for a nonterminal symbol.
+* Initial Action Decl:: Code run before parsing starts.
+* Destructor Decl:: Declaring how symbols are freed.
+* Expect Decl:: Suppressing warnings about parsing conflicts.
+* Start Decl:: Specifying the start symbol.
+* Pure Decl:: Requesting a reentrant parser.
+* Decl Summary:: Table of all Bison declarations.
+@end menu
+
+@node Require Decl
+@subsection Require a Version of Bison
+@cindex version requirement
+@cindex requiring a version of Bison
+@findex %require
+
+You may require the minimum version of Bison to process the grammar. If
+the requirement is not met, @command{bison} exits with an error (exit
+status 63).
+
+@example
+%require "@var{version}"
+@end example
+
+@node Token Decl
+@subsection Token Type Names
+@cindex declaring token type names
+@cindex token type names, declaring
+@cindex declaring literal string tokens
+@findex %token
+
+The basic way to declare a token type name (terminal symbol) is as follows:
+
+@example
+%token @var{name}
+@end example
+
+Bison will convert this into a @code{#define} directive in
+the parser, so that the function @code{yylex} (if it is in this file)
+can use the name @var{name} to stand for this token type's code.
+
+Alternatively, you can use @code{%left}, @code{%right}, or
+@code{%nonassoc} instead of @code{%token}, if you wish to specify
+associativity and precedence. @xref{Precedence Decl, ,Operator
+Precedence}.
+
+You can explicitly specify the numeric code for a token type by appending
+a decimal or hexadecimal integer value in the field immediately
+following the token name:
+
+@example
+%token NUM 300
+%token XNUM 0x12d // a GNU extension
+@end example
+
+@noindent
+It is generally best, however, to let Bison choose the numeric codes for
+all token types. Bison will automatically select codes that don't conflict
+with each other or with normal characters.
+
+In the event that the stack type is a union, you must augment the
+@code{%token} or other token declaration to include the data type
+alternative delimited by angle-brackets (@pxref{Multiple Types, ,More
+Than One Value Type}).
+
+For example:
+
+@example
+@group
+%union @{ /* define stack type */
+ double val;
+ symrec *tptr;
+@}
+%token <val> NUM /* define token NUM and its type */
+@end group
+@end example
+
+You can associate a literal string token with a token type name by
+writing the literal string at the end of a @code{%token}
+declaration which declares the name. For example:
+
+@example
+%token arrow "=>"
+@end example
+
+@noindent
+For example, a grammar for the C language might specify these names with
+equivalent literal string tokens:
+
+@example
+%token <operator> OR "||"
+%token <operator> LE 134 "<="
+%left OR "<="
+@end example
+
+@noindent
+Once you equate the literal string and the token name, you can use them
+interchangeably in further declarations or the grammar rules. The
+@code{yylex} function can use the token name or the literal string to
+obtain the token type code number (@pxref{Calling Convention}).
+
+@node Precedence Decl
+@subsection Operator Precedence
+@cindex precedence declarations
+@cindex declaring operator precedence
+@cindex operator precedence, declaring
+
+Use the @code{%left}, @code{%right} or @code{%nonassoc} declaration to
+declare a token and specify its precedence and associativity, all at
+once. These are called @dfn{precedence declarations}.
+@xref{Precedence, ,Operator Precedence}, for general information on
+operator precedence.
+
+The syntax of a precedence declaration is the same as that of
+@code{%token}: either
+
+@example
+%left @var{symbols}@dots{}
+@end example
+
+@noindent
+or
+
+@example
+%left <@var{type}> @var{symbols}@dots{}
+@end example
+
+And indeed any of these declarations serves the purposes of @code{%token}.
+But in addition, they specify the associativity and relative precedence for
+all the @var{symbols}:
+
+@itemize @bullet
+@item
+The associativity of an operator @var{op} determines how repeated uses
+of the operator nest: whether @samp{@var{x} @var{op} @var{y} @var{op}
+@var{z}} is parsed by grouping @var{x} with @var{y} first or by
+grouping @var{y} with @var{z} first. @code{%left} specifies
+left-associativity (grouping @var{x} with @var{y} first) and
+@code{%right} specifies right-associativity (grouping @var{y} with
+@var{z} first). @code{%nonassoc} specifies no associativity, which
+means that @samp{@var{x} @var{op} @var{y} @var{op} @var{z}} is
+considered a syntax error.
+
+@item
+The precedence of an operator determines how it nests with other operators.
+All the tokens declared in a single precedence declaration have equal
+precedence and nest together according to their associativity.
+When two tokens declared in different precedence declarations associate,
+the one declared later has the higher precedence and is grouped first.
+@end itemize
+
+@node Union Decl
+@subsection The Collection of Value Types
+@cindex declaring value types
+@cindex value types, declaring
+@findex %union
+
+The @code{%union} declaration specifies the entire collection of
+possible data types for semantic values. The keyword @code{%union} is
+followed by braced code containing the same thing that goes inside a
+@code{union} in C@.
+
+For example:
+
+@example
+@group
+%union @{
+ double val;
+ symrec *tptr;
+@}
+@end group
+@end example
+
+@noindent
+This says that the two alternative types are @code{double} and @code{symrec
+*}. They are given names @code{val} and @code{tptr}; these names are used
+in the @code{%token} and @code{%type} declarations to pick one of the types
+for a terminal or nonterminal symbol (@pxref{Type Decl, ,Nonterminal Symbols}).
+
+As an extension to @acronym{POSIX}, a tag is allowed after the
+@code{union}. For example:
+
+@example
+@group
+%union value @{
+ double val;
+ symrec *tptr;
+@}
+@end group
+@end example
+
+@noindent
+specifies the union tag @code{value}, so the corresponding C type is
+@code{union value}. If you do not specify a tag, it defaults to
+@code{YYSTYPE}.
+
+As another extension to @acronym{POSIX}, you may specify multiple
+@code{%union} declarations; their contents are concatenated. However,
+only the first @code{%union} declaration can specify a tag.
+
+Note that, unlike making a @code{union} declaration in C, you need not write
+a semicolon after the closing brace.
+
+@node Type Decl
+@subsection Nonterminal Symbols
+@cindex declaring value types, nonterminals
+@cindex value types, nonterminals, declaring
+@findex %type
+
+@noindent
+When you use @code{%union} to specify multiple value types, you must
+declare the value type of each nonterminal symbol for which values are
+used. This is done with a @code{%type} declaration, like this:
+
+@example
+%type <@var{type}> @var{nonterminal}@dots{}
+@end example
+
+@noindent
+Here @var{nonterminal} is the name of a nonterminal symbol, and
+@var{type} is the name given in the @code{%union} to the alternative
+that you want (@pxref{Union Decl, ,The Collection of Value Types}). You
+can give any number of nonterminal symbols in the same @code{%type}
+declaration, if they have the same value type. Use spaces to separate
+the symbol names.
+
+You can also declare the value type of a terminal symbol. To do this,
+use the same @code{<@var{type}>} construction in a declaration for the
+terminal symbol. All kinds of token declarations allow
+@code{<@var{type}>}.
+
+@node Initial Action Decl
+@subsection Performing Actions before Parsing
+@findex %initial-action
+
+Sometimes your parser needs to perform some initializations before
+parsing. The @code{%initial-action} directive allows for such arbitrary
+code.
+
+@deffn {Directive} %initial-action @{ @var{code} @}
+@findex %initial-action
+Declare that the braced @var{code} must be invoked before parsing each time
+@code{yyparse} is called. The @var{code} may use @code{$$} and
+@code{@@$} --- initial value and location of the look-ahead --- and the
+@code{%parse-param}.
+@end deffn
+
+For instance, if your locations use a file name, you may use
+
+@example
+%parse-param @{ char const *file_name @};
+%initial-action
+@{
+ @@$.initialize (file_name);
+@};
+@end example
+
+
+@node Destructor Decl
+@subsection Freeing Discarded Symbols
+@cindex freeing discarded symbols
+@findex %destructor
+
+During error recovery (@pxref{Error Recovery}), symbols already pushed
+on the stack and tokens coming from the rest of the file are discarded
+until the parser falls on its feet. If the parser runs out of memory,
+or if it returns via @code{YYABORT} or @code{YYACCEPT}, all the
+symbols on the stack must be discarded. Even if the parser succeeds, it
+must discard the start symbol.
+
+When discarded symbols convey heap based information, this memory is
+lost. While this behavior can be tolerable for batch parsers, such as
+in traditional compilers, it is unacceptable for programs like shells or
+protocol implementations that may parse and execute indefinitely.
+
+The @code{%destructor} directive defines code that is called when a
+symbol is automatically discarded.
+
+@deffn {Directive} %destructor @{ @var{code} @} @var{symbols}
+@findex %destructor
+Invoke the braced @var{code} whenever the parser discards one of the
+@var{symbols}.
+Within @var{code}, @code{$$} designates the semantic value associated
+with the discarded symbol. The additional parser parameters are also
+available (@pxref{Parser Function, , The Parser Function
+@code{yyparse}}).
+@end deffn
+
+For instance:
+
+@smallexample
+%union
+@{
+ char *string;
+@}
+%token <string> STRING
+%type <string> string
+%destructor @{ free ($$); @} STRING string
+@end smallexample
+
+@noindent
+guarantees that when a @code{STRING} or a @code{string} is discarded,
+its associated memory will be freed.
+
+@sp 1
+
+@cindex discarded symbols
+@dfn{Discarded symbols} are the following:
+
+@itemize
+@item
+stacked symbols popped during the first phase of error recovery,
+@item
+incoming terminals during the second phase of error recovery,
+@item
+the current look-ahead and the entire stack (except the current
+right-hand side symbols) when the parser returns immediately, and
+@item
+the start symbol, when the parser succeeds.
+@end itemize
+
+The parser can @dfn{return immediately} because of an explicit call to
+@code{YYABORT} or @code{YYACCEPT}, or failed error recovery, or memory
+exhaustion.
+
+Right-hand size symbols of a rule that explicitly triggers a syntax
+error via @code{YYERROR} are not discarded automatically. As a rule
+of thumb, destructors are invoked only when user actions cannot manage
+the memory.
+
+@node Expect Decl
+@subsection Suppressing Conflict Warnings
+@cindex suppressing conflict warnings
+@cindex preventing warnings about conflicts
+@cindex warnings, preventing
+@cindex conflicts, suppressing warnings of
+@findex %expect
+@findex %expect-rr
+
+Bison normally warns if there are any conflicts in the grammar
+(@pxref{Shift/Reduce, ,Shift/Reduce Conflicts}), but most real grammars
+have harmless shift/reduce conflicts which are resolved in a predictable
+way and would be difficult to eliminate. It is desirable to suppress
+the warning about these conflicts unless the number of conflicts
+changes. You can do this with the @code{%expect} declaration.
+
+The declaration looks like this:
+
+@example
+%expect @var{n}
+@end example
+
+Here @var{n} is a decimal integer. The declaration says there should
+be @var{n} shift/reduce conflicts and no reduce/reduce conflicts.
+Bison reports an error if the number of shift/reduce conflicts differs
+from @var{n}, or if there are any reduce/reduce conflicts.
+
+For normal @acronym{LALR}(1) parsers, reduce/reduce conflicts are more
+serious, and should be eliminated entirely. Bison will always report
+reduce/reduce conflicts for these parsers. With @acronym{GLR}
+parsers, however, both kinds of conflicts are routine; otherwise,
+there would be no need to use @acronym{GLR} parsing. Therefore, it is
+also possible to specify an expected number of reduce/reduce conflicts
+in @acronym{GLR} parsers, using the declaration:
+
+@example
+%expect-rr @var{n}
+@end example
+
+In general, using @code{%expect} involves these steps:
+
+@itemize @bullet
+@item
+Compile your grammar without @code{%expect}. Use the @samp{-v} option
+to get a verbose list of where the conflicts occur. Bison will also
+print the number of conflicts.
+
+@item
+Check each of the conflicts to make sure that Bison's default
+resolution is what you really want. If not, rewrite the grammar and
+go back to the beginning.
+
+@item
+Add an @code{%expect} declaration, copying the number @var{n} from the
+number which Bison printed. With @acronym{GLR} parsers, add an
+@code{%expect-rr} declaration as well.
+@end itemize
+
+Now Bison will warn you if you introduce an unexpected conflict, but
+will keep silent otherwise.
+
+@node Start Decl
+@subsection The Start-Symbol
+@cindex declaring the start symbol
+@cindex start symbol, declaring
+@cindex default start symbol
+@findex %start
+
+Bison assumes by default that the start symbol for the grammar is the first
+nonterminal specified in the grammar specification section. The programmer
+may override this restriction with the @code{%start} declaration as follows:
+
+@example
+%start @var{symbol}
+@end example
+
+@node Pure Decl
+@subsection A Pure (Reentrant) Parser
+@cindex reentrant parser
+@cindex pure parser
+@findex %pure-parser
+
+A @dfn{reentrant} program is one which does not alter in the course of
+execution; in other words, it consists entirely of @dfn{pure} (read-only)
+code. Reentrancy is important whenever asynchronous execution is possible;
+for example, a nonreentrant program may not be safe to call from a signal
+handler. In systems with multiple threads of control, a nonreentrant
+program must be called only within interlocks.
+
+Normally, Bison generates a parser which is not reentrant. This is
+suitable for most uses, and it permits compatibility with Yacc. (The
+standard Yacc interfaces are inherently nonreentrant, because they use
+statically allocated variables for communication with @code{yylex},
+including @code{yylval} and @code{yylloc}.)
+
+Alternatively, you can generate a pure, reentrant parser. The Bison
+declaration @code{%pure-parser} says that you want the parser to be
+reentrant. It looks like this:
+
+@example
+%pure-parser
+@end example
+
+The result is that the communication variables @code{yylval} and
+@code{yylloc} become local variables in @code{yyparse}, and a different
+calling convention is used for the lexical analyzer function
+@code{yylex}. @xref{Pure Calling, ,Calling Conventions for Pure
+Parsers}, for the details of this. The variable @code{yynerrs} also
+becomes local in @code{yyparse} (@pxref{Error Reporting, ,The Error
+Reporting Function @code{yyerror}}). The convention for calling
+@code{yyparse} itself is unchanged.
+
+Whether the parser is pure has nothing to do with the grammar rules.
+You can generate either a pure parser or a nonreentrant parser from any
+valid grammar.
+
+@node Decl Summary
+@subsection Bison Declaration Summary
+@cindex Bison declaration summary
+@cindex declaration summary
+@cindex summary, Bison declaration
+
+Here is a summary of the declarations used to define a grammar:
+
+@deffn {Directive} %union
+Declare the collection of data types that semantic values may have
+(@pxref{Union Decl, ,The Collection of Value Types}).
+@end deffn
+
+@deffn {Directive} %token
+Declare a terminal symbol (token type name) with no precedence
+or associativity specified (@pxref{Token Decl, ,Token Type Names}).
+@end deffn
+
+@deffn {Directive} %right
+Declare a terminal symbol (token type name) that is right-associative
+(@pxref{Precedence Decl, ,Operator Precedence}).
+@end deffn
+
+@deffn {Directive} %left
+Declare a terminal symbol (token type name) that is left-associative
+(@pxref{Precedence Decl, ,Operator Precedence}).
+@end deffn
+
+@deffn {Directive} %nonassoc
+Declare a terminal symbol (token type name) that is nonassociative
+(@pxref{Precedence Decl, ,Operator Precedence}).
+Using it in a way that would be associative is a syntax error.
+@end deffn
+
+@ifset defaultprec
+@deffn {Directive} %default-prec
+Assign a precedence to rules lacking an explicit @code{%prec} modifier
+(@pxref{Contextual Precedence, ,Context-Dependent Precedence}).
+@end deffn
+@end ifset
+
+@deffn {Directive} %type
+Declare the type of semantic values for a nonterminal symbol
+(@pxref{Type Decl, ,Nonterminal Symbols}).
+@end deffn
+
+@deffn {Directive} %start
+Specify the grammar's start symbol (@pxref{Start Decl, ,The
+Start-Symbol}).
+@end deffn
+
+@deffn {Directive} %expect
+Declare the expected number of shift-reduce conflicts
+(@pxref{Expect Decl, ,Suppressing Conflict Warnings}).
+@end deffn
+
+
+@sp 1
+@noindent
+In order to change the behavior of @command{bison}, use the following
+directives:
+
+@deffn {Directive} %debug
+In the parser file, define the macro @code{YYDEBUG} to 1 if it is not
+already defined, so that the debugging facilities are compiled.
+@end deffn
+@xref{Tracing, ,Tracing Your Parser}.
+
+@deffn {Directive} %defines
+Write a header file containing macro definitions for the token type
+names defined in the grammar as well as a few other declarations.
+If the parser output file is named @file{@var{name}.c} then this file
+is named @file{@var{name}.h}.
+
+Unless @code{YYSTYPE} is already defined as a macro, the output header
+declares @code{YYSTYPE}. Therefore, if you are using a @code{%union}
+(@pxref{Multiple Types, ,More Than One Value Type}) with components that
+require other definitions, or if you have defined a @code{YYSTYPE} macro
+(@pxref{Value Type, ,Data Types of Semantic Values}), you need to
+arrange for these definitions to be propagated to all modules, e.g., by
+putting them in a prerequisite header that is included both by your
+parser and by any other module that needs @code{YYSTYPE}.
+
+Unless your parser is pure, the output header declares @code{yylval}
+as an external variable. @xref{Pure Decl, ,A Pure (Reentrant)
+Parser}.
+
+If you have also used locations, the output header declares
+@code{YYLTYPE} and @code{yylloc} using a protocol similar to that of
+@code{YYSTYPE} and @code{yylval}. @xref{Locations, ,Tracking
+Locations}.
+
+This output file is normally essential if you wish to put the definition
+of @code{yylex} in a separate source file, because @code{yylex}
+typically needs to be able to refer to the above-mentioned declarations
+and to the token type codes. @xref{Token Values, ,Semantic Values of
+Tokens}.
+@end deffn
+
+@deffn {Directive} %destructor
+Specify how the parser should reclaim the memory associated to
+discarded symbols. @xref{Destructor Decl, , Freeing Discarded Symbols}.
+@end deffn
+
+@deffn {Directive} %file-prefix="@var{prefix}"
+Specify a prefix to use for all Bison output file names. The names are
+chosen as if the input file were named @file{@var{prefix}.y}.
+@end deffn
+
+@deffn {Directive} %locations
+Generate the code processing the locations (@pxref{Action Features,
+,Special Features for Use in Actions}). This mode is enabled as soon as
+the grammar uses the special @samp{@@@var{n}} tokens, but if your
+grammar does not use it, using @samp{%locations} allows for more
+accurate syntax error messages.
+@end deffn
+
+@deffn {Directive} %name-prefix="@var{prefix}"
+Rename the external symbols used in the parser so that they start with
+@var{prefix} instead of @samp{yy}. The precise list of symbols renamed
+in C parsers
+is @code{yyparse}, @code{yylex}, @code{yyerror}, @code{yynerrs},
+@code{yylval}, @code{yychar}, @code{yydebug}, and
+(if locations are used) @code{yylloc}. For example, if you use
+@samp{%name-prefix="c_"}, the names become @code{c_parse}, @code{c_lex},
+and so on. In C++ parsers, it is only the surrounding namespace which is
+named @var{prefix} instead of @samp{yy}.
+@xref{Multiple Parsers, ,Multiple Parsers in the Same Program}.
+@end deffn
+
+@ifset defaultprec
+@deffn {Directive} %no-default-prec
+Do not assign a precedence to rules lacking an explicit @code{%prec}
+modifier (@pxref{Contextual Precedence, ,Context-Dependent
+Precedence}).
+@end deffn
+@end ifset
+
+@deffn {Directive} %no-parser
+Do not include any C code in the parser file; generate tables only. The
+parser file contains just @code{#define} directives and static variable
+declarations.
+
+This option also tells Bison to write the C code for the grammar actions
+into a file named @file{@var{file}.act}, in the form of a
+brace-surrounded body fit for a @code{switch} statement.
+@end deffn
+
+@deffn {Directive} %no-lines
+Don't generate any @code{#line} preprocessor commands in the parser
+file. Ordinarily Bison writes these commands in the parser file so that
+the C compiler and debuggers will associate errors and object code with
+your source file (the grammar file). This directive causes them to
+associate errors with the parser file, treating it an independent source
+file in its own right.
+@end deffn
+
+@deffn {Directive} %output="@var{file}"
+Specify @var{file} for the parser file.
+@end deffn
+
+@deffn {Directive} %pure-parser
+Request a pure (reentrant) parser program (@pxref{Pure Decl, ,A Pure
+(Reentrant) Parser}).
+@end deffn
+
+@deffn {Directive} %require "@var{version}"
+Require version @var{version} or higher of Bison. @xref{Require Decl, ,
+Require a Version of Bison}.
+@end deffn
+
+@deffn {Directive} %token-table
+Generate an array of token names in the parser file. The name of the
+array is @code{yytname}; @code{yytname[@var{i}]} is the name of the
+token whose internal Bison token code number is @var{i}. The first
+three elements of @code{yytname} correspond to the predefined tokens
+@code{"$end"},
+@code{"error"}, and @code{"$undefined"}; after these come the symbols
+defined in the grammar file.
+
+The name in the table includes all the characters needed to represent
+the token in Bison. For single-character literals and literal
+strings, this includes the surrounding quoting characters and any
+escape sequences. For example, the Bison single-character literal
+@code{'+'} corresponds to a three-character name, represented in C as
+@code{"'+'"}; and the Bison two-character literal string @code{"\\/"}
+corresponds to a five-character name, represented in C as
+@code{"\"\\\\/\""}.
+
+When you specify @code{%token-table}, Bison also generates macro
+definitions for macros @code{YYNTOKENS}, @code{YYNNTS}, and
+@code{YYNRULES}, and @code{YYNSTATES}:
+
+@table @code
+@item YYNTOKENS
+The highest token number, plus one.
+@item YYNNTS
+The number of nonterminal symbols.
+@item YYNRULES
+The number of grammar rules,
+@item YYNSTATES
+The number of parser states (@pxref{Parser States}).
+@end table
+@end deffn
+
+@deffn {Directive} %verbose
+Write an extra output file containing verbose descriptions of the
+parser states and what is done for each type of look-ahead token in
+that state. @xref{Understanding, , Understanding Your Parser}, for more
+information.
+@end deffn
+
+@deffn {Directive} %yacc
+Pretend the option @option{--yacc} was given, i.e., imitate Yacc,
+including its naming conventions. @xref{Bison Options}, for more.
+@end deffn
+
+
+@node Multiple Parsers
+@section Multiple Parsers in the Same Program
+
+Most programs that use Bison parse only one language and therefore contain
+only one Bison parser. But what if you want to parse more than one
+language with the same program? Then you need to avoid a name conflict
+between different definitions of @code{yyparse}, @code{yylval}, and so on.
+
+The easy way to do this is to use the option @samp{-p @var{prefix}}
+(@pxref{Invocation, ,Invoking Bison}). This renames the interface
+functions and variables of the Bison parser to start with @var{prefix}
+instead of @samp{yy}. You can use this to give each parser distinct
+names that do not conflict.
+
+The precise list of symbols renamed is @code{yyparse}, @code{yylex},
+@code{yyerror}, @code{yynerrs}, @code{yylval}, @code{yylloc},
+@code{yychar} and @code{yydebug}. For example, if you use @samp{-p c},
+the names become @code{cparse}, @code{clex}, and so on.
+
+@strong{All the other variables and macros associated with Bison are not
+renamed.} These others are not global; there is no conflict if the same
+name is used in different parsers. For example, @code{YYSTYPE} is not
+renamed, but defining this in different ways in different parsers causes
+no trouble (@pxref{Value Type, ,Data Types of Semantic Values}).
+
+The @samp{-p} option works by adding macro definitions to the beginning
+of the parser source file, defining @code{yyparse} as
+@code{@var{prefix}parse}, and so on. This effectively substitutes one
+name for the other in the entire parser file.
+
+@node Interface
+@chapter Parser C-Language Interface
+@cindex C-language interface
+@cindex interface
+
+The Bison parser is actually a C function named @code{yyparse}. Here we
+describe the interface conventions of @code{yyparse} and the other
+functions that it needs to use.
+
+Keep in mind that the parser uses many C identifiers starting with
+@samp{yy} and @samp{YY} for internal purposes. If you use such an
+identifier (aside from those in this manual) in an action or in epilogue
+in the grammar file, you are likely to run into trouble.
+
+@menu
+* Parser Function:: How to call @code{yyparse} and what it returns.
+* Lexical:: You must supply a function @code{yylex}
+ which reads tokens.
+* Error Reporting:: You must supply a function @code{yyerror}.
+* Action Features:: Special features for use in actions.
+* Internationalization:: How to let the parser speak in the user's
+ native language.
+@end menu
+
+@node Parser Function
+@section The Parser Function @code{yyparse}
+@findex yyparse
+
+You call the function @code{yyparse} to cause parsing to occur. This
+function reads tokens, executes actions, and ultimately returns when it
+encounters end-of-input or an unrecoverable syntax error. You can also
+write an action which directs @code{yyparse} to return immediately
+without reading further.
+
+
+@deftypefun int yyparse (void)
+The value returned by @code{yyparse} is 0 if parsing was successful (return
+is due to end-of-input).
+
+The value is 1 if parsing failed because of invalid input, i.e., input
+that contains a syntax error or that causes @code{YYABORT} to be
+invoked.
+
+The value is 2 if parsing failed due to memory exhaustion.
+@end deftypefun
+
+In an action, you can cause immediate return from @code{yyparse} by using
+these macros:
+
+@defmac YYACCEPT
+@findex YYACCEPT
+Return immediately with value 0 (to report success).
+@end defmac
+
+@defmac YYABORT
+@findex YYABORT
+Return immediately with value 1 (to report failure).
+@end defmac
+
+If you use a reentrant parser, you can optionally pass additional
+parameter information to it in a reentrant way. To do so, use the
+declaration @code{%parse-param}:
+
+@deffn {Directive} %parse-param @{@var{argument-declaration}@}
+@findex %parse-param
+Declare that an argument declared by the braced-code
+@var{argument-declaration} is an additional @code{yyparse} argument.
+The @var{argument-declaration} is used when declaring
+functions or prototypes. The last identifier in
+@var{argument-declaration} must be the argument name.
+@end deffn
+
+Here's an example. Write this in the parser:
+
+@example
+%parse-param @{int *nastiness@}
+%parse-param @{int *randomness@}
+@end example
+
+@noindent
+Then call the parser like this:
+
+@example
+@{
+ int nastiness, randomness;
+ @dots{} /* @r{Store proper data in @code{nastiness} and @code{randomness}.} */
+ value = yyparse (&nastiness, &randomness);
+ @dots{}
+@}
+@end example
+
+@noindent
+In the grammar actions, use expressions like this to refer to the data:
+
+@example
+exp: @dots{} @{ @dots{}; *randomness += 1; @dots{} @}
+@end example
+
+
+@node Lexical
+@section The Lexical Analyzer Function @code{yylex}
+@findex yylex
+@cindex lexical analyzer
+
+The @dfn{lexical analyzer} function, @code{yylex}, recognizes tokens from
+the input stream and returns them to the parser. Bison does not create
+this function automatically; you must write it so that @code{yyparse} can
+call it. The function is sometimes referred to as a lexical scanner.
+
+In simple programs, @code{yylex} is often defined at the end of the Bison
+grammar file. If @code{yylex} is defined in a separate source file, you
+need to arrange for the token-type macro definitions to be available there.
+To do this, use the @samp{-d} option when you run Bison, so that it will
+write these macro definitions into a separate header file
+@file{@var{name}.tab.h} which you can include in the other source files
+that need it. @xref{Invocation, ,Invoking Bison}.
+
+@menu
+* Calling Convention:: How @code{yyparse} calls @code{yylex}.
+* Token Values:: How @code{yylex} must return the semantic value
+ of the token it has read.
+* Token Locations:: How @code{yylex} must return the text location
+ (line number, etc.) of the token, if the
+ actions want that.
+* Pure Calling:: How the calling convention differs
+ in a pure parser (@pxref{Pure Decl, ,A Pure (Reentrant) Parser}).
+@end menu
+
+@node Calling Convention
+@subsection Calling Convention for @code{yylex}
+
+The value that @code{yylex} returns must be the positive numeric code
+for the type of token it has just found; a zero or negative value
+signifies end-of-input.
+
+When a token is referred to in the grammar rules by a name, that name
+in the parser file becomes a C macro whose definition is the proper
+numeric code for that token type. So @code{yylex} can use the name
+to indicate that type. @xref{Symbols}.
+
+When a token is referred to in the grammar rules by a character literal,
+the numeric code for that character is also the code for the token type.
+So @code{yylex} can simply return that character code, possibly converted
+to @code{unsigned char} to avoid sign-extension. The null character
+must not be used this way, because its code is zero and that
+signifies end-of-input.
+
+Here is an example showing these things:
+
+@example
+int
+yylex (void)
+@{
+ @dots{}
+ if (c == EOF) /* Detect end-of-input. */
+ return 0;
+ @dots{}
+ if (c == '+' || c == '-')
+ return c; /* Assume token type for `+' is '+'. */
+ @dots{}
+ return INT; /* Return the type of the token. */
+ @dots{}
+@}
+@end example
+
+@noindent
+This interface has been designed so that the output from the @code{lex}
+utility can be used without change as the definition of @code{yylex}.
+
+If the grammar uses literal string tokens, there are two ways that
+@code{yylex} can determine the token type codes for them:
+
+@itemize @bullet
+@item
+If the grammar defines symbolic token names as aliases for the
+literal string tokens, @code{yylex} can use these symbolic names like
+all others. In this case, the use of the literal string tokens in
+the grammar file has no effect on @code{yylex}.
+
+@item
+@code{yylex} can find the multicharacter token in the @code{yytname}
+table. The index of the token in the table is the token type's code.
+The name of a multicharacter token is recorded in @code{yytname} with a
+double-quote, the token's characters, and another double-quote. The
+token's characters are escaped as necessary to be suitable as input
+to Bison.
+
+Here's code for looking up a multicharacter token in @code{yytname},
+assuming that the characters of the token are stored in
+@code{token_buffer}, and assuming that the token does not contain any
+characters like @samp{"} that require escaping.
+
+@smallexample
+for (i = 0; i < YYNTOKENS; i++)
+ @{
+ if (yytname[i] != 0
+ && yytname[i][0] == '"'
+ && ! strncmp (yytname[i] + 1, token_buffer,
+ strlen (token_buffer))
+ && yytname[i][strlen (token_buffer) + 1] == '"'
+ && yytname[i][strlen (token_buffer) + 2] == 0)
+ break;
+ @}
+@end smallexample
+
+The @code{yytname} table is generated only if you use the
+@code{%token-table} declaration. @xref{Decl Summary}.
+@end itemize
+
+@node Token Values
+@subsection Semantic Values of Tokens
+
+@vindex yylval
+In an ordinary (nonreentrant) parser, the semantic value of the token must
+be stored into the global variable @code{yylval}. When you are using
+just one data type for semantic values, @code{yylval} has that type.
+Thus, if the type is @code{int} (the default), you might write this in
+@code{yylex}:
+
+@example
+@group
+ @dots{}
+ yylval = value; /* Put value onto Bison stack. */
+ return INT; /* Return the type of the token. */
+ @dots{}
+@end group
+@end example
+
+When you are using multiple data types, @code{yylval}'s type is a union
+made from the @code{%union} declaration (@pxref{Union Decl, ,The
+Collection of Value Types}). So when you store a token's value, you
+must use the proper member of the union. If the @code{%union}
+declaration looks like this:
+
+@example
+@group
+%union @{
+ int intval;
+ double val;
+ symrec *tptr;
+@}
+@end group
+@end example
+
+@noindent
+then the code in @code{yylex} might look like this:
+
+@example
+@group
+ @dots{}
+ yylval.intval = value; /* Put value onto Bison stack. */
+ return INT; /* Return the type of the token. */
+ @dots{}
+@end group
+@end example
+
+@node Token Locations
+@subsection Textual Locations of Tokens
+
+@vindex yylloc
+If you are using the @samp{@@@var{n}}-feature (@pxref{Locations, ,
+Tracking Locations}) in actions to keep track of the textual locations
+of tokens and groupings, then you must provide this information in
+@code{yylex}. The function @code{yyparse} expects to find the textual
+location of a token just parsed in the global variable @code{yylloc}.
+So @code{yylex} must store the proper data in that variable.
+
+By default, the value of @code{yylloc} is a structure and you need only
+initialize the members that are going to be used by the actions. The
+four members are called @code{first_line}, @code{first_column},
+@code{last_line} and @code{last_column}. Note that the use of this
+feature makes the parser noticeably slower.
+
+@tindex YYLTYPE
+The data type of @code{yylloc} has the name @code{YYLTYPE}.
+
+@node Pure Calling
+@subsection Calling Conventions for Pure Parsers
+
+When you use the Bison declaration @code{%pure-parser} to request a
+pure, reentrant parser, the global communication variables @code{yylval}
+and @code{yylloc} cannot be used. (@xref{Pure Decl, ,A Pure (Reentrant)
+Parser}.) In such parsers the two global variables are replaced by
+pointers passed as arguments to @code{yylex}. You must declare them as
+shown here, and pass the information back by storing it through those
+pointers.
+
+@example
+int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+@{
+ @dots{}
+ *lvalp = value; /* Put value onto Bison stack. */
+ return INT; /* Return the type of the token. */
+ @dots{}
+@}
+@end example
+
+If the grammar file does not use the @samp{@@} constructs to refer to
+textual locations, then the type @code{YYLTYPE} will not be defined. In
+this case, omit the second argument; @code{yylex} will be called with
+only one argument.
+
+
+If you wish to pass the additional parameter data to @code{yylex}, use
+@code{%lex-param} just like @code{%parse-param} (@pxref{Parser
+Function}).
+
+@deffn {Directive} lex-param @{@var{argument-declaration}@}
+@findex %lex-param
+Declare that the braced-code @var{argument-declaration} is an
+additional @code{yylex} argument declaration.
+@end deffn
+
+For instance:
+
+@example
+%parse-param @{int *nastiness@}
+%lex-param @{int *nastiness@}
+%parse-param @{int *randomness@}
+@end example
+
+@noindent
+results in the following signature:
+
+@example
+int yylex (int *nastiness);
+int yyparse (int *nastiness, int *randomness);
+@end example
+
+If @code{%pure-parser} is added:
+
+@example
+int yylex (YYSTYPE *lvalp, int *nastiness);
+int yyparse (int *nastiness, int *randomness);
+@end example
+
+@noindent
+and finally, if both @code{%pure-parser} and @code{%locations} are used:
+
+@example
+int yylex (YYSTYPE *lvalp, YYLTYPE *llocp, int *nastiness);
+int yyparse (int *nastiness, int *randomness);
+@end example
+
+@node Error Reporting
+@section The Error Reporting Function @code{yyerror}
+@cindex error reporting function
+@findex yyerror
+@cindex parse error
+@cindex syntax error
+
+The Bison parser detects a @dfn{syntax error} or @dfn{parse error}
+whenever it reads a token which cannot satisfy any syntax rule. An
+action in the grammar can also explicitly proclaim an error, using the
+macro @code{YYERROR} (@pxref{Action Features, ,Special Features for Use
+in Actions}).
+
+The Bison parser expects to report the error by calling an error
+reporting function named @code{yyerror}, which you must supply. It is
+called by @code{yyparse} whenever a syntax error is found, and it
+receives one argument. For a syntax error, the string is normally
+@w{@code{"syntax error"}}.
+
+@findex %error-verbose
+If you invoke the directive @code{%error-verbose} in the Bison
+declarations section (@pxref{Bison Declarations, ,The Bison Declarations
+Section}), then Bison provides a more verbose and specific error message
+string instead of just plain @w{@code{"syntax error"}}.
+
+The parser can detect one other kind of error: memory exhaustion. This
+can happen when the input contains constructions that are very deeply
+nested. It isn't likely you will encounter this, since the Bison
+parser normally extends its stack automatically up to a very large limit. But
+if memory is exhausted, @code{yyparse} calls @code{yyerror} in the usual
+fashion, except that the argument string is @w{@code{"memory exhausted"}}.
+
+In some cases diagnostics like @w{@code{"syntax error"}} are
+translated automatically from English to some other language before
+they are passed to @code{yyerror}. @xref{Internationalization}.
+
+The following definition suffices in simple programs:
+
+@example
+@group
+void
+yyerror (char const *s)
+@{
+@end group
+@group
+ fprintf (stderr, "%s\n", s);
+@}
+@end group
+@end example
+
+After @code{yyerror} returns to @code{yyparse}, the latter will attempt
+error recovery if you have written suitable error recovery grammar rules
+(@pxref{Error Recovery}). If recovery is impossible, @code{yyparse} will
+immediately return 1.
+
+Obviously, in location tracking pure parsers, @code{yyerror} should have
+an access to the current location.
+This is indeed the case for the @acronym{GLR}
+parsers, but not for the Yacc parser, for historical reasons. I.e., if
+@samp{%locations %pure-parser} is passed then the prototypes for
+@code{yyerror} are:
+
+@example
+void yyerror (char const *msg); /* Yacc parsers. */
+void yyerror (YYLTYPE *locp, char const *msg); /* GLR parsers. */
+@end example
+
+If @samp{%parse-param @{int *nastiness@}} is used, then:
+
+@example
+void yyerror (int *nastiness, char const *msg); /* Yacc parsers. */
+void yyerror (int *nastiness, char const *msg); /* GLR parsers. */
+@end example
+
+Finally, @acronym{GLR} and Yacc parsers share the same @code{yyerror} calling
+convention for absolutely pure parsers, i.e., when the calling
+convention of @code{yylex} @emph{and} the calling convention of
+@code{%pure-parser} are pure. I.e.:
+
+@example
+/* Location tracking. */
+%locations
+/* Pure yylex. */
+%pure-parser
+%lex-param @{int *nastiness@}
+/* Pure yyparse. */
+%parse-param @{int *nastiness@}
+%parse-param @{int *randomness@}
+@end example
+
+@noindent
+results in the following signatures for all the parser kinds:
+
+@example
+int yylex (YYSTYPE *lvalp, YYLTYPE *llocp, int *nastiness);
+int yyparse (int *nastiness, int *randomness);
+void yyerror (YYLTYPE *locp,
+ int *nastiness, int *randomness,
+ char const *msg);
+@end example
+
+@noindent
+The prototypes are only indications of how the code produced by Bison
+uses @code{yyerror}. Bison-generated code always ignores the returned
+value, so @code{yyerror} can return any type, including @code{void}.
+Also, @code{yyerror} can be a variadic function; that is why the
+message is always passed last.
+
+Traditionally @code{yyerror} returns an @code{int} that is always
+ignored, but this is purely for historical reasons, and @code{void} is
+preferable since it more accurately describes the return type for
+@code{yyerror}.
+
+@vindex yynerrs
+The variable @code{yynerrs} contains the number of syntax errors
+reported so far. Normally this variable is global; but if you
+request a pure parser (@pxref{Pure Decl, ,A Pure (Reentrant) Parser})
+then it is a local variable which only the actions can access.
+
+@node Action Features
+@section Special Features for Use in Actions
+@cindex summary, action features
+@cindex action features summary
+
+Here is a table of Bison constructs, variables and macros that
+are useful in actions.
+
+@deffn {Variable} $$
+Acts like a variable that contains the semantic value for the
+grouping made by the current rule. @xref{Actions}.
+@end deffn
+
+@deffn {Variable} $@var{n}
+Acts like a variable that contains the semantic value for the
+@var{n}th component of the current rule. @xref{Actions}.
+@end deffn
+
+@deffn {Variable} $<@var{typealt}>$
+Like @code{$$} but specifies alternative @var{typealt} in the union
+specified by the @code{%union} declaration. @xref{Action Types, ,Data
+Types of Values in Actions}.
+@end deffn
+
+@deffn {Variable} $<@var{typealt}>@var{n}
+Like @code{$@var{n}} but specifies alternative @var{typealt} in the
+union specified by the @code{%union} declaration.
+@xref{Action Types, ,Data Types of Values in Actions}.
+@end deffn
+
+@deffn {Macro} YYABORT;
+Return immediately from @code{yyparse}, indicating failure.
+@xref{Parser Function, ,The Parser Function @code{yyparse}}.
+@end deffn
+
+@deffn {Macro} YYACCEPT;
+Return immediately from @code{yyparse}, indicating success.
+@xref{Parser Function, ,The Parser Function @code{yyparse}}.
+@end deffn
+
+@deffn {Macro} YYBACKUP (@var{token}, @var{value});
+@findex YYBACKUP
+Unshift a token. This macro is allowed only for rules that reduce
+a single value, and only when there is no look-ahead token.
+It is also disallowed in @acronym{GLR} parsers.
+It installs a look-ahead token with token type @var{token} and
+semantic value @var{value}; then it discards the value that was
+going to be reduced by this rule.
+
+If the macro is used when it is not valid, such as when there is
+a look-ahead token already, then it reports a syntax error with
+a message @samp{cannot back up} and performs ordinary error
+recovery.
+
+In either case, the rest of the action is not executed.
+@end deffn
+
+@deffn {Macro} YYEMPTY
+@vindex YYEMPTY
+Value stored in @code{yychar} when there is no look-ahead token.
+@end deffn
+
+@deffn {Macro} YYEOF
+@vindex YYEOF
+Value stored in @code{yychar} when the look-ahead is the end of the input
+stream.
+@end deffn
+
+@deffn {Macro} YYERROR;
+@findex YYERROR
+Cause an immediate syntax error. This statement initiates error
+recovery just as if the parser itself had detected an error; however, it
+does not call @code{yyerror}, and does not print any message. If you
+want to print an error message, call @code{yyerror} explicitly before
+the @samp{YYERROR;} statement. @xref{Error Recovery}.
+@end deffn
+
+@deffn {Macro} YYRECOVERING
+@findex YYRECOVERING
+The expression @code{YYRECOVERING ()} yields 1 when the parser
+is recovering from a syntax error, and 0 otherwise.
+@xref{Error Recovery}.
+@end deffn
+
+@deffn {Variable} yychar
+Variable containing either the look-ahead token, or @code{YYEOF} when the
+look-ahead is the end of the input stream, or @code{YYEMPTY} when no look-ahead
+has been performed so the next token is not yet known.
+Do not modify @code{yychar} in a deferred semantic action (@pxref{GLR Semantic
+Actions}).
+@xref{Look-Ahead, ,Look-Ahead Tokens}.
+@end deffn
+
+@deffn {Macro} yyclearin;
+Discard the current look-ahead token. This is useful primarily in
+error rules.
+Do not invoke @code{yyclearin} in a deferred semantic action (@pxref{GLR
+Semantic Actions}).
+@xref{Error Recovery}.
+@end deffn
+
+@deffn {Macro} yyerrok;
+Resume generating error messages immediately for subsequent syntax
+errors. This is useful primarily in error rules.
+@xref{Error Recovery}.
+@end deffn
+
+@deffn {Variable} yylloc
+Variable containing the look-ahead token location when @code{yychar} is not set
+to @code{YYEMPTY} or @code{YYEOF}.
+Do not modify @code{yylloc} in a deferred semantic action (@pxref{GLR Semantic
+Actions}).
+@xref{Actions and Locations, ,Actions and Locations}.
+@end deffn
+
+@deffn {Variable} yylval
+Variable containing the look-ahead token semantic value when @code{yychar} is
+not set to @code{YYEMPTY} or @code{YYEOF}.
+Do not modify @code{yylval} in a deferred semantic action (@pxref{GLR Semantic
+Actions}).
+@xref{Actions, ,Actions}.
+@end deffn
+
+@deffn {Value} @@$
+@findex @@$
+Acts like a structure variable containing information on the textual location
+of the grouping made by the current rule. @xref{Locations, ,
+Tracking Locations}.
+
+@c Check if those paragraphs are still useful or not.
+
+@c @example
+@c struct @{
+@c int first_line, last_line;
+@c int first_column, last_column;
+@c @};
+@c @end example
+
+@c Thus, to get the starting line number of the third component, you would
+@c use @samp{@@3.first_line}.
+
+@c In order for the members of this structure to contain valid information,
+@c you must make @code{yylex} supply this information about each token.
+@c If you need only certain members, then @code{yylex} need only fill in
+@c those members.
+
+@c The use of this feature makes the parser noticeably slower.
+@end deffn
+
+@deffn {Value} @@@var{n}
+@findex @@@var{n}
+Acts like a structure variable containing information on the textual location
+of the @var{n}th component of the current rule. @xref{Locations, ,
+Tracking Locations}.
+@end deffn
+
+@node Internationalization
+@section Parser Internationalization
+@cindex internationalization
+@cindex i18n
+@cindex NLS
+@cindex gettext
+@cindex bison-po
+
+A Bison-generated parser can print diagnostics, including error and
+tracing messages. By default, they appear in English. However, Bison
+also supports outputting diagnostics in the user's native language. To
+make this work, the user should set the usual environment variables.
+@xref{Users, , The User's View, gettext, GNU @code{gettext} utilities}.
+For example, the shell command @samp{export LC_ALL=fr_CA.UTF-8} might
+set the user's locale to French Canadian using the @acronym{UTF}-8
+encoding. The exact set of available locales depends on the user's
+installation.
+
+The maintainer of a package that uses a Bison-generated parser enables
+the internationalization of the parser's output through the following
+steps. Here we assume a package that uses @acronym{GNU} Autoconf and
+@acronym{GNU} Automake.
+
+@enumerate
+@item
+@cindex bison-i18n.m4
+Into the directory containing the @acronym{GNU} Autoconf macros used
+by the package---often called @file{m4}---copy the
+@file{bison-i18n.m4} file installed by Bison under
+@samp{share/aclocal/bison-i18n.m4} in Bison's installation directory.
+For example:
+
+@example
+cp /usr/local/share/aclocal/bison-i18n.m4 m4/bison-i18n.m4
+@end example
+
+@item
+@findex BISON_I18N
+@vindex BISON_LOCALEDIR
+@vindex YYENABLE_NLS
+In the top-level @file{configure.ac}, after the @code{AM_GNU_GETTEXT}
+invocation, add an invocation of @code{BISON_I18N}. This macro is
+defined in the file @file{bison-i18n.m4} that you copied earlier. It
+causes @samp{configure} to find the value of the
+@code{BISON_LOCALEDIR} variable, and it defines the source-language
+symbol @code{YYENABLE_NLS} to enable translations in the
+Bison-generated parser.
+
+@item
+In the @code{main} function of your program, designate the directory
+containing Bison's runtime message catalog, through a call to
+@samp{bindtextdomain} with domain name @samp{bison-runtime}.
+For example:
+
+@example
+bindtextdomain ("bison-runtime", BISON_LOCALEDIR);
+@end example
+
+Typically this appears after any other call @code{bindtextdomain
+(PACKAGE, LOCALEDIR)} that your package already has. Here we rely on
+@samp{BISON_LOCALEDIR} to be defined as a string through the
+@file{Makefile}.
+
+@item
+In the @file{Makefile.am} that controls the compilation of the @code{main}
+function, make @samp{BISON_LOCALEDIR} available as a C preprocessor macro,
+either in @samp{DEFS} or in @samp{AM_CPPFLAGS}. For example:
+
+@example
+DEFS = @@DEFS@@ -DBISON_LOCALEDIR='"$(BISON_LOCALEDIR)"'
+@end example
+
+or:
+
+@example
+AM_CPPFLAGS = -DBISON_LOCALEDIR='"$(BISON_LOCALEDIR)"'
+@end example
+
+@item
+Finally, invoke the command @command{autoreconf} to generate the build
+infrastructure.
+@end enumerate
+
+
+@node Algorithm
+@chapter The Bison Parser Algorithm
+@cindex Bison parser algorithm
+@cindex algorithm of parser
+@cindex shifting
+@cindex reduction
+@cindex parser stack
+@cindex stack, parser
+
+As Bison reads tokens, it pushes them onto a stack along with their
+semantic values. The stack is called the @dfn{parser stack}. Pushing a
+token is traditionally called @dfn{shifting}.
+
+For example, suppose the infix calculator has read @samp{1 + 5 *}, with a
+@samp{3} to come. The stack will have four elements, one for each token
+that was shifted.
+
+But the stack does not always have an element for each token read. When
+the last @var{n} tokens and groupings shifted match the components of a
+grammar rule, they can be combined according to that rule. This is called
+@dfn{reduction}. Those tokens and groupings are replaced on the stack by a
+single grouping whose symbol is the result (left hand side) of that rule.
+Running the rule's action is part of the process of reduction, because this
+is what computes the semantic value of the resulting grouping.
+
+For example, if the infix calculator's parser stack contains this:
+
+@example
+1 + 5 * 3
+@end example
+
+@noindent
+and the next input token is a newline character, then the last three
+elements can be reduced to 15 via the rule:
+
+@example
+expr: expr '*' expr;
+@end example
+
+@noindent
+Then the stack contains just these three elements:
+
+@example
+1 + 15
+@end example
+
+@noindent
+At this point, another reduction can be made, resulting in the single value
+16. Then the newline token can be shifted.
+
+The parser tries, by shifts and reductions, to reduce the entire input down
+to a single grouping whose symbol is the grammar's start-symbol
+(@pxref{Language and Grammar, ,Languages and Context-Free Grammars}).
+
+This kind of parser is known in the literature as a bottom-up parser.
+
+@menu
+* Look-Ahead:: Parser looks one token ahead when deciding what to do.
+* Shift/Reduce:: Conflicts: when either shifting or reduction is valid.
+* Precedence:: Operator precedence works by resolving conflicts.
+* Contextual Precedence:: When an operator's precedence depends on context.
+* Parser States:: The parser is a finite-state-machine with stack.
+* Reduce/Reduce:: When two rules are applicable in the same situation.
+* Mystery Conflicts:: Reduce/reduce conflicts that look unjustified.
+* Generalized LR Parsing:: Parsing arbitrary context-free grammars.
+* Memory Management:: What happens when memory is exhausted. How to avoid it.
+@end menu
+
+@node Look-Ahead
+@section Look-Ahead Tokens
+@cindex look-ahead token
+
+The Bison parser does @emph{not} always reduce immediately as soon as the
+last @var{n} tokens and groupings match a rule. This is because such a
+simple strategy is inadequate to handle most languages. Instead, when a
+reduction is possible, the parser sometimes ``looks ahead'' at the next
+token in order to decide what to do.
+
+When a token is read, it is not immediately shifted; first it becomes the
+@dfn{look-ahead token}, which is not on the stack. Now the parser can
+perform one or more reductions of tokens and groupings on the stack, while
+the look-ahead token remains off to the side. When no more reductions
+should take place, the look-ahead token is shifted onto the stack. This
+does not mean that all possible reductions have been done; depending on the
+token type of the look-ahead token, some rules may choose to delay their
+application.
+
+Here is a simple case where look-ahead is needed. These three rules define
+expressions which contain binary addition operators and postfix unary
+factorial operators (@samp{!}), and allow parentheses for grouping.
+
+@example
+@group
+expr: term '+' expr
+ | term
+ ;
+@end group
+
+@group
+term: '(' expr ')'
+ | term '!'
+ | NUMBER
+ ;
+@end group
+@end example
+
+Suppose that the tokens @w{@samp{1 + 2}} have been read and shifted; what
+should be done? If the following token is @samp{)}, then the first three
+tokens must be reduced to form an @code{expr}. This is the only valid
+course, because shifting the @samp{)} would produce a sequence of symbols
+@w{@code{term ')'}}, and no rule allows this.
+
+If the following token is @samp{!}, then it must be shifted immediately so
+that @w{@samp{2 !}} can be reduced to make a @code{term}. If instead the
+parser were to reduce before shifting, @w{@samp{1 + 2}} would become an
+@code{expr}. It would then be impossible to shift the @samp{!} because
+doing so would produce on the stack the sequence of symbols @code{expr
+'!'}. No rule allows that sequence.
+
+@vindex yychar
+@vindex yylval
+@vindex yylloc
+The look-ahead token is stored in the variable @code{yychar}.
+Its semantic value and location, if any, are stored in the variables
+@code{yylval} and @code{yylloc}.
+@xref{Action Features, ,Special Features for Use in Actions}.
+
+@node Shift/Reduce
+@section Shift/Reduce Conflicts
+@cindex conflicts
+@cindex shift/reduce conflicts
+@cindex dangling @code{else}
+@cindex @code{else}, dangling
+
+Suppose we are parsing a language which has if-then and if-then-else
+statements, with a pair of rules like this:
+
+@example
+@group
+if_stmt:
+ IF expr THEN stmt
+ | IF expr THEN stmt ELSE stmt
+ ;
+@end group
+@end example
+
+@noindent
+Here we assume that @code{IF}, @code{THEN} and @code{ELSE} are
+terminal symbols for specific keyword tokens.
+
+When the @code{ELSE} token is read and becomes the look-ahead token, the
+contents of the stack (assuming the input is valid) are just right for
+reduction by the first rule. But it is also legitimate to shift the
+@code{ELSE}, because that would lead to eventual reduction by the second
+rule.
+
+This situation, where either a shift or a reduction would be valid, is
+called a @dfn{shift/reduce conflict}. Bison is designed to resolve
+these conflicts by choosing to shift, unless otherwise directed by
+operator precedence declarations. To see the reason for this, let's
+contrast it with the other alternative.
+
+Since the parser prefers to shift the @code{ELSE}, the result is to attach
+the else-clause to the innermost if-statement, making these two inputs
+equivalent:
+
+@example
+if x then if y then win (); else lose;
+
+if x then do; if y then win (); else lose; end;
+@end example
+
+But if the parser chose to reduce when possible rather than shift, the
+result would be to attach the else-clause to the outermost if-statement,
+making these two inputs equivalent:
+
+@example
+if x then if y then win (); else lose;
+
+if x then do; if y then win (); end; else lose;
+@end example
+
+The conflict exists because the grammar as written is ambiguous: either
+parsing of the simple nested if-statement is legitimate. The established
+convention is that these ambiguities are resolved by attaching the
+else-clause to the innermost if-statement; this is what Bison accomplishes
+by choosing to shift rather than reduce. (It would ideally be cleaner to
+write an unambiguous grammar, but that is very hard to do in this case.)
+This particular ambiguity was first encountered in the specifications of
+Algol 60 and is called the ``dangling @code{else}'' ambiguity.
+
+To avoid warnings from Bison about predictable, legitimate shift/reduce
+conflicts, use the @code{%expect @var{n}} declaration. There will be no
+warning as long as the number of shift/reduce conflicts is exactly @var{n}.
+@xref{Expect Decl, ,Suppressing Conflict Warnings}.
+
+The definition of @code{if_stmt} above is solely to blame for the
+conflict, but the conflict does not actually appear without additional
+rules. Here is a complete Bison input file that actually manifests the
+conflict:
+
+@example
+@group
+%token IF THEN ELSE variable
+%%
+@end group
+@group
+stmt: expr
+ | if_stmt
+ ;
+@end group
+
+@group
+if_stmt:
+ IF expr THEN stmt
+ | IF expr THEN stmt ELSE stmt
+ ;
+@end group
+
+expr: variable
+ ;
+@end example
+
+@node Precedence
+@section Operator Precedence
+@cindex operator precedence
+@cindex precedence of operators
+
+Another situation where shift/reduce conflicts appear is in arithmetic
+expressions. Here shifting is not always the preferred resolution; the
+Bison declarations for operator precedence allow you to specify when to
+shift and when to reduce.
+
+@menu
+* Why Precedence:: An example showing why precedence is needed.
+* Using Precedence:: How to specify precedence in Bison grammars.
+* Precedence Examples:: How these features are used in the previous example.
+* How Precedence:: How they work.
+@end menu
+
+@node Why Precedence
+@subsection When Precedence is Needed
+
+Consider the following ambiguous grammar fragment (ambiguous because the
+input @w{@samp{1 - 2 * 3}} can be parsed in two different ways):
+
+@example
+@group
+expr: expr '-' expr
+ | expr '*' expr
+ | expr '<' expr
+ | '(' expr ')'
+ @dots{}
+ ;
+@end group
+@end example
+
+@noindent
+Suppose the parser has seen the tokens @samp{1}, @samp{-} and @samp{2};
+should it reduce them via the rule for the subtraction operator? It
+depends on the next token. Of course, if the next token is @samp{)}, we
+must reduce; shifting is invalid because no single rule can reduce the
+token sequence @w{@samp{- 2 )}} or anything starting with that. But if
+the next token is @samp{*} or @samp{<}, we have a choice: either
+shifting or reduction would allow the parse to complete, but with
+different results.
+
+To decide which one Bison should do, we must consider the results. If
+the next operator token @var{op} is shifted, then it must be reduced
+first in order to permit another opportunity to reduce the difference.
+The result is (in effect) @w{@samp{1 - (2 @var{op} 3)}}. On the other
+hand, if the subtraction is reduced before shifting @var{op}, the result
+is @w{@samp{(1 - 2) @var{op} 3}}. Clearly, then, the choice of shift or
+reduce should depend on the relative precedence of the operators
+@samp{-} and @var{op}: @samp{*} should be shifted first, but not
+@samp{<}.
+
+@cindex associativity
+What about input such as @w{@samp{1 - 2 - 5}}; should this be
+@w{@samp{(1 - 2) - 5}} or should it be @w{@samp{1 - (2 - 5)}}? For most
+operators we prefer the former, which is called @dfn{left association}.
+The latter alternative, @dfn{right association}, is desirable for
+assignment operators. The choice of left or right association is a
+matter of whether the parser chooses to shift or reduce when the stack
+contains @w{@samp{1 - 2}} and the look-ahead token is @samp{-}: shifting
+makes right-associativity.
+
+@node Using Precedence
+@subsection Specifying Operator Precedence
+@findex %left
+@findex %right
+@findex %nonassoc
+
+Bison allows you to specify these choices with the operator precedence
+declarations @code{%left} and @code{%right}. Each such declaration
+contains a list of tokens, which are operators whose precedence and
+associativity is being declared. The @code{%left} declaration makes all
+those operators left-associative and the @code{%right} declaration makes
+them right-associative. A third alternative is @code{%nonassoc}, which
+declares that it is a syntax error to find the same operator twice ``in a
+row''.
+
+The relative precedence of different operators is controlled by the
+order in which they are declared. The first @code{%left} or
+@code{%right} declaration in the file declares the operators whose
+precedence is lowest, the next such declaration declares the operators
+whose precedence is a little higher, and so on.
+
+@node Precedence Examples
+@subsection Precedence Examples
+
+In our example, we would want the following declarations:
+
+@example
+%left '<'
+%left '-'
+%left '*'
+@end example
+
+In a more complete example, which supports other operators as well, we
+would declare them in groups of equal precedence. For example, @code{'+'} is
+declared with @code{'-'}:
+
+@example
+%left '<' '>' '=' NE LE GE
+%left '+' '-'
+%left '*' '/'
+@end example
+
+@noindent
+(Here @code{NE} and so on stand for the operators for ``not equal''
+and so on. We assume that these tokens are more than one character long
+and therefore are represented by names, not character literals.)
+
+@node How Precedence
+@subsection How Precedence Works
+
+The first effect of the precedence declarations is to assign precedence
+levels to the terminal symbols declared. The second effect is to assign
+precedence levels to certain rules: each rule gets its precedence from
+the last terminal symbol mentioned in the components. (You can also
+specify explicitly the precedence of a rule. @xref{Contextual
+Precedence, ,Context-Dependent Precedence}.)
+
+Finally, the resolution of conflicts works by comparing the precedence
+of the rule being considered with that of the look-ahead token. If the
+token's precedence is higher, the choice is to shift. If the rule's
+precedence is higher, the choice is to reduce. If they have equal
+precedence, the choice is made based on the associativity of that
+precedence level. The verbose output file made by @samp{-v}
+(@pxref{Invocation, ,Invoking Bison}) says how each conflict was
+resolved.
+
+Not all rules and not all tokens have precedence. If either the rule or
+the look-ahead token has no precedence, then the default is to shift.
+
+@node Contextual Precedence
+@section Context-Dependent Precedence
+@cindex context-dependent precedence
+@cindex unary operator precedence
+@cindex precedence, context-dependent
+@cindex precedence, unary operator
+@findex %prec
+
+Often the precedence of an operator depends on the context. This sounds
+outlandish at first, but it is really very common. For example, a minus
+sign typically has a very high precedence as a unary operator, and a
+somewhat lower precedence (lower than multiplication) as a binary operator.
+
+The Bison precedence declarations, @code{%left}, @code{%right} and
+@code{%nonassoc}, can only be used once for a given token; so a token has
+only one precedence declared in this way. For context-dependent
+precedence, you need to use an additional mechanism: the @code{%prec}
+modifier for rules.
+
+The @code{%prec} modifier declares the precedence of a particular rule by
+specifying a terminal symbol whose precedence should be used for that rule.
+It's not necessary for that symbol to appear otherwise in the rule. The
+modifier's syntax is:
+
+@example
+%prec @var{terminal-symbol}
+@end example
+
+@noindent
+and it is written after the components of the rule. Its effect is to
+assign the rule the precedence of @var{terminal-symbol}, overriding
+the precedence that would be deduced for it in the ordinary way. The
+altered rule precedence then affects how conflicts involving that rule
+are resolved (@pxref{Precedence, ,Operator Precedence}).
+
+Here is how @code{%prec} solves the problem of unary minus. First, declare
+a precedence for a fictitious terminal symbol named @code{UMINUS}. There
+are no tokens of this type, but the symbol serves to stand for its
+precedence:
+
+@example
+@dots{}
+%left '+' '-'
+%left '*'
+%left UMINUS
+@end example
+
+Now the precedence of @code{UMINUS} can be used in specific rules:
+
+@example
+@group
+exp: @dots{}
+ | exp '-' exp
+ @dots{}
+ | '-' exp %prec UMINUS
+@end group
+@end example
+
+@ifset defaultprec
+If you forget to append @code{%prec UMINUS} to the rule for unary
+minus, Bison silently assumes that minus has its usual precedence.
+This kind of problem can be tricky to debug, since one typically
+discovers the mistake only by testing the code.
+
+The @code{%no-default-prec;} declaration makes it easier to discover
+this kind of problem systematically. It causes rules that lack a
+@code{%prec} modifier to have no precedence, even if the last terminal
+symbol mentioned in their components has a declared precedence.
+
+If @code{%no-default-prec;} is in effect, you must specify @code{%prec}
+for all rules that participate in precedence conflict resolution.
+Then you will see any shift/reduce conflict until you tell Bison how
+to resolve it, either by changing your grammar or by adding an
+explicit precedence. This will probably add declarations to the
+grammar, but it helps to protect against incorrect rule precedences.
+
+The effect of @code{%no-default-prec;} can be reversed by giving
+@code{%default-prec;}, which is the default.
+@end ifset
+
+@node Parser States
+@section Parser States
+@cindex finite-state machine
+@cindex parser state
+@cindex state (of parser)
+
+The function @code{yyparse} is implemented using a finite-state machine.
+The values pushed on the parser stack are not simply token type codes; they
+represent the entire sequence of terminal and nonterminal symbols at or
+near the top of the stack. The current state collects all the information
+about previous input which is relevant to deciding what to do next.
+
+Each time a look-ahead token is read, the current parser state together
+with the type of look-ahead token are looked up in a table. This table
+entry can say, ``Shift the look-ahead token.'' In this case, it also
+specifies the new parser state, which is pushed onto the top of the
+parser stack. Or it can say, ``Reduce using rule number @var{n}.''
+This means that a certain number of tokens or groupings are taken off
+the top of the stack, and replaced by one grouping. In other words,
+that number of states are popped from the stack, and one new state is
+pushed.
+
+There is one other alternative: the table can say that the look-ahead token
+is erroneous in the current state. This causes error processing to begin
+(@pxref{Error Recovery}).
+
+@node Reduce/Reduce
+@section Reduce/Reduce Conflicts
+@cindex reduce/reduce conflict
+@cindex conflicts, reduce/reduce
+
+A reduce/reduce conflict occurs if there are two or more rules that apply
+to the same sequence of input. This usually indicates a serious error
+in the grammar.
+
+For example, here is an erroneous attempt to define a sequence
+of zero or more @code{word} groupings.
+
+@example
+sequence: /* empty */
+ @{ printf ("empty sequence\n"); @}
+ | maybeword
+ | sequence word
+ @{ printf ("added word %s\n", $2); @}
+ ;
+
+maybeword: /* empty */
+ @{ printf ("empty maybeword\n"); @}
+ | word
+ @{ printf ("single word %s\n", $1); @}
+ ;
+@end example
+
+@noindent
+The error is an ambiguity: there is more than one way to parse a single
+@code{word} into a @code{sequence}. It could be reduced to a
+@code{maybeword} and then into a @code{sequence} via the second rule.
+Alternatively, nothing-at-all could be reduced into a @code{sequence}
+via the first rule, and this could be combined with the @code{word}
+using the third rule for @code{sequence}.
+
+There is also more than one way to reduce nothing-at-all into a
+@code{sequence}. This can be done directly via the first rule,
+or indirectly via @code{maybeword} and then the second rule.
+
+You might think that this is a distinction without a difference, because it
+does not change whether any particular input is valid or not. But it does
+affect which actions are run. One parsing order runs the second rule's
+action; the other runs the first rule's action and the third rule's action.
+In this example, the output of the program changes.
+
+Bison resolves a reduce/reduce conflict by choosing to use the rule that
+appears first in the grammar, but it is very risky to rely on this. Every
+reduce/reduce conflict must be studied and usually eliminated. Here is the
+proper way to define @code{sequence}:
+
+@example
+sequence: /* empty */
+ @{ printf ("empty sequence\n"); @}
+ | sequence word
+ @{ printf ("added word %s\n", $2); @}
+ ;
+@end example
+
+Here is another common error that yields a reduce/reduce conflict:
+
+@example
+sequence: /* empty */
+ | sequence words
+ | sequence redirects
+ ;
+
+words: /* empty */
+ | words word
+ ;
+
+redirects:/* empty */
+ | redirects redirect
+ ;
+@end example
+
+@noindent
+The intention here is to define a sequence which can contain either
+@code{word} or @code{redirect} groupings. The individual definitions of
+@code{sequence}, @code{words} and @code{redirects} are error-free, but the
+three together make a subtle ambiguity: even an empty input can be parsed
+in infinitely many ways!
+
+Consider: nothing-at-all could be a @code{words}. Or it could be two
+@code{words} in a row, or three, or any number. It could equally well be a
+@code{redirects}, or two, or any number. Or it could be a @code{words}
+followed by three @code{redirects} and another @code{words}. And so on.
+
+Here are two ways to correct these rules. First, to make it a single level
+of sequence:
+
+@example
+sequence: /* empty */
+ | sequence word
+ | sequence redirect
+ ;
+@end example
+
+Second, to prevent either a @code{words} or a @code{redirects}
+from being empty:
+
+@example
+sequence: /* empty */
+ | sequence words
+ | sequence redirects
+ ;
+
+words: word
+ | words word
+ ;
+
+redirects:redirect
+ | redirects redirect
+ ;
+@end example
+
+@node Mystery Conflicts
+@section Mysterious Reduce/Reduce Conflicts
+
+Sometimes reduce/reduce conflicts can occur that don't look warranted.
+Here is an example:
+
+@example
+@group
+%token ID
+
+%%
+def: param_spec return_spec ','
+ ;
+param_spec:
+ type
+ | name_list ':' type
+ ;
+@end group
+@group
+return_spec:
+ type
+ | name ':' type
+ ;
+@end group
+@group
+type: ID
+ ;
+@end group
+@group
+name: ID
+ ;
+name_list:
+ name
+ | name ',' name_list
+ ;
+@end group
+@end example
+
+It would seem that this grammar can be parsed with only a single token
+of look-ahead: when a @code{param_spec} is being read, an @code{ID} is
+a @code{name} if a comma or colon follows, or a @code{type} if another
+@code{ID} follows. In other words, this grammar is @acronym{LR}(1).
+
+@cindex @acronym{LR}(1)
+@cindex @acronym{LALR}(1)
+However, Bison, like most parser generators, cannot actually handle all
+@acronym{LR}(1) grammars. In this grammar, two contexts, that after
+an @code{ID}
+at the beginning of a @code{param_spec} and likewise at the beginning of
+a @code{return_spec}, are similar enough that Bison assumes they are the
+same. They appear similar because the same set of rules would be
+active---the rule for reducing to a @code{name} and that for reducing to
+a @code{type}. Bison is unable to determine at that stage of processing
+that the rules would require different look-ahead tokens in the two
+contexts, so it makes a single parser state for them both. Combining
+the two contexts causes a conflict later. In parser terminology, this
+occurrence means that the grammar is not @acronym{LALR}(1).
+
+In general, it is better to fix deficiencies than to document them. But
+this particular deficiency is intrinsically hard to fix; parser
+generators that can handle @acronym{LR}(1) grammars are hard to write
+and tend to
+produce parsers that are very large. In practice, Bison is more useful
+as it is now.
+
+When the problem arises, you can often fix it by identifying the two
+parser states that are being confused, and adding something to make them
+look distinct. In the above example, adding one rule to
+@code{return_spec} as follows makes the problem go away:
+
+@example
+@group
+%token BOGUS
+@dots{}
+%%
+@dots{}
+return_spec:
+ type
+ | name ':' type
+ /* This rule is never used. */
+ | ID BOGUS
+ ;
+@end group
+@end example
+
+This corrects the problem because it introduces the possibility of an
+additional active rule in the context after the @code{ID} at the beginning of
+@code{return_spec}. This rule is not active in the corresponding context
+in a @code{param_spec}, so the two contexts receive distinct parser states.
+As long as the token @code{BOGUS} is never generated by @code{yylex},
+the added rule cannot alter the way actual input is parsed.
+
+In this particular example, there is another way to solve the problem:
+rewrite the rule for @code{return_spec} to use @code{ID} directly
+instead of via @code{name}. This also causes the two confusing
+contexts to have different sets of active rules, because the one for
+@code{return_spec} activates the altered rule for @code{return_spec}
+rather than the one for @code{name}.
+
+@example
+param_spec:
+ type
+ | name_list ':' type
+ ;
+return_spec:
+ type
+ | ID ':' type
+ ;
+@end example
+
+For a more detailed exposition of @acronym{LALR}(1) parsers and parser
+generators, please see:
+Frank DeRemer and Thomas Pennello, Efficient Computation of
+@acronym{LALR}(1) Look-Ahead Sets, @cite{@acronym{ACM} Transactions on
+Programming Languages and Systems}, Vol.@: 4, No.@: 4 (October 1982),
+pp.@: 615--649 @uref{http://doi.acm.org/10.1145/69622.357187}.
+
+@node Generalized LR Parsing
+@section Generalized @acronym{LR} (@acronym{GLR}) Parsing
+@cindex @acronym{GLR} parsing
+@cindex generalized @acronym{LR} (@acronym{GLR}) parsing
+@cindex ambiguous grammars
+@cindex nondeterministic parsing
+
+Bison produces @emph{deterministic} parsers that choose uniquely
+when to reduce and which reduction to apply
+based on a summary of the preceding input and on one extra token of look-ahead.
+As a result, normal Bison handles a proper subset of the family of
+context-free languages.
+Ambiguous grammars, since they have strings with more than one possible
+sequence of reductions cannot have deterministic parsers in this sense.
+The same is true of languages that require more than one symbol of
+look-ahead, since the parser lacks the information necessary to make a
+decision at the point it must be made in a shift-reduce parser.
+Finally, as previously mentioned (@pxref{Mystery Conflicts}),
+there are languages where Bison's particular choice of how to
+summarize the input seen so far loses necessary information.
+
+When you use the @samp{%glr-parser} declaration in your grammar file,
+Bison generates a parser that uses a different algorithm, called
+Generalized @acronym{LR} (or @acronym{GLR}). A Bison @acronym{GLR}
+parser uses the same basic
+algorithm for parsing as an ordinary Bison parser, but behaves
+differently in cases where there is a shift-reduce conflict that has not
+been resolved by precedence rules (@pxref{Precedence}) or a
+reduce-reduce conflict. When a @acronym{GLR} parser encounters such a
+situation, it
+effectively @emph{splits} into a several parsers, one for each possible
+shift or reduction. These parsers then proceed as usual, consuming
+tokens in lock-step. Some of the stacks may encounter other conflicts
+and split further, with the result that instead of a sequence of states,
+a Bison @acronym{GLR} parsing stack is what is in effect a tree of states.
+
+In effect, each stack represents a guess as to what the proper parse
+is. Additional input may indicate that a guess was wrong, in which case
+the appropriate stack silently disappears. Otherwise, the semantics
+actions generated in each stack are saved, rather than being executed
+immediately. When a stack disappears, its saved semantic actions never
+get executed. When a reduction causes two stacks to become equivalent,
+their sets of semantic actions are both saved with the state that
+results from the reduction. We say that two stacks are equivalent
+when they both represent the same sequence of states,
+and each pair of corresponding states represents a
+grammar symbol that produces the same segment of the input token
+stream.
+
+Whenever the parser makes a transition from having multiple
+states to having one, it reverts to the normal @acronym{LALR}(1) parsing
+algorithm, after resolving and executing the saved-up actions.
+At this transition, some of the states on the stack will have semantic
+values that are sets (actually multisets) of possible actions. The
+parser tries to pick one of the actions by first finding one whose rule
+has the highest dynamic precedence, as set by the @samp{%dprec}
+declaration. Otherwise, if the alternative actions are not ordered by
+precedence, but there the same merging function is declared for both
+rules by the @samp{%merge} declaration,
+Bison resolves and evaluates both and then calls the merge function on
+the result. Otherwise, it reports an ambiguity.
+
+It is possible to use a data structure for the @acronym{GLR} parsing tree that
+permits the processing of any @acronym{LALR}(1) grammar in linear time (in the
+size of the input), any unambiguous (not necessarily
+@acronym{LALR}(1)) grammar in
+quadratic worst-case time, and any general (possibly ambiguous)
+context-free grammar in cubic worst-case time. However, Bison currently
+uses a simpler data structure that requires time proportional to the
+length of the input times the maximum number of stacks required for any
+prefix of the input. Thus, really ambiguous or nondeterministic
+grammars can require exponential time and space to process. Such badly
+behaving examples, however, are not generally of practical interest.
+Usually, nondeterminism in a grammar is local---the parser is ``in
+doubt'' only for a few tokens at a time. Therefore, the current data
+structure should generally be adequate. On @acronym{LALR}(1) portions of a
+grammar, in particular, it is only slightly slower than with the default
+Bison parser.
+
+For a more detailed exposition of @acronym{GLR} parsers, please see: Elizabeth
+Scott, Adrian Johnstone and Shamsa Sadaf Hussain, Tomita-Style
+Generalised @acronym{LR} Parsers, Royal Holloway, University of
+London, Department of Computer Science, TR-00-12,
+@uref{http://www.cs.rhul.ac.uk/research/languages/publications/tomita_style_1.ps},
+(2000-12-24).
+
+@node Memory Management
+@section Memory Management, and How to Avoid Memory Exhaustion
+@cindex memory exhaustion
+@cindex memory management
+@cindex stack overflow
+@cindex parser stack overflow
+@cindex overflow of parser stack
+
+The Bison parser stack can run out of memory if too many tokens are shifted and
+not reduced. When this happens, the parser function @code{yyparse}
+calls @code{yyerror} and then returns 2.
+
+Because Bison parsers have growing stacks, hitting the upper limit
+usually results from using a right recursion instead of a left
+recursion, @xref{Recursion, ,Recursive Rules}.
+
+@vindex YYMAXDEPTH
+By defining the macro @code{YYMAXDEPTH}, you can control how deep the
+parser stack can become before memory is exhausted. Define the
+macro with a value that is an integer. This value is the maximum number
+of tokens that can be shifted (and not reduced) before overflow.
+
+The stack space allowed is not necessarily allocated. If you specify a
+large value for @code{YYMAXDEPTH}, the parser normally allocates a small
+stack at first, and then makes it bigger by stages as needed. This
+increasing allocation happens automatically and silently. Therefore,
+you do not need to make @code{YYMAXDEPTH} painfully small merely to save
+space for ordinary inputs that do not need much stack.
+
+However, do not allow @code{YYMAXDEPTH} to be a value so large that
+arithmetic overflow could occur when calculating the size of the stack
+space. Also, do not allow @code{YYMAXDEPTH} to be less than
+@code{YYINITDEPTH}.
+
+@cindex default stack limit
+The default value of @code{YYMAXDEPTH}, if you do not define it, is
+10000.
+
+@vindex YYINITDEPTH
+You can control how much stack is allocated initially by defining the
+macro @code{YYINITDEPTH} to a positive integer. For the C
+@acronym{LALR}(1) parser, this value must be a compile-time constant
+unless you are assuming C99 or some other target language or compiler
+that allows variable-length arrays. The default is 200.
+
+Do not allow @code{YYINITDEPTH} to be greater than @code{YYMAXDEPTH}.
+
+@c FIXME: C++ output.
+Because of semantical differences between C and C++, the
+@acronym{LALR}(1) parsers in C produced by Bison cannot grow when compiled
+by C++ compilers. In this precise case (compiling a C parser as C++) you are
+suggested to grow @code{YYINITDEPTH}. The Bison maintainers hope to fix
+this deficiency in a future release.
+
+@node Error Recovery
+@chapter Error Recovery
+@cindex error recovery
+@cindex recovery from errors
+
+It is not usually acceptable to have a program terminate on a syntax
+error. For example, a compiler should recover sufficiently to parse the
+rest of the input file and check it for errors; a calculator should accept
+another expression.
+
+In a simple interactive command parser where each input is one line, it may
+be sufficient to allow @code{yyparse} to return 1 on error and have the
+caller ignore the rest of the input line when that happens (and then call
+@code{yyparse} again). But this is inadequate for a compiler, because it
+forgets all the syntactic context leading up to the error. A syntax error
+deep within a function in the compiler input should not cause the compiler
+to treat the following line like the beginning of a source file.
+
+@findex error
+You can define how to recover from a syntax error by writing rules to
+recognize the special token @code{error}. This is a terminal symbol that
+is always defined (you need not declare it) and reserved for error
+handling. The Bison parser generates an @code{error} token whenever a
+syntax error happens; if you have provided a rule to recognize this token
+in the current context, the parse can continue.
+
+For example:
+
+@example
+stmnts: /* empty string */
+ | stmnts '\n'
+ | stmnts exp '\n'
+ | stmnts error '\n'
+@end example
+
+The fourth rule in this example says that an error followed by a newline
+makes a valid addition to any @code{stmnts}.
+
+What happens if a syntax error occurs in the middle of an @code{exp}? The
+error recovery rule, interpreted strictly, applies to the precise sequence
+of a @code{stmnts}, an @code{error} and a newline. If an error occurs in
+the middle of an @code{exp}, there will probably be some additional tokens
+and subexpressions on the stack after the last @code{stmnts}, and there
+will be tokens to read before the next newline. So the rule is not
+applicable in the ordinary way.
+
+But Bison can force the situation to fit the rule, by discarding part of
+the semantic context and part of the input. First it discards states
+and objects from the stack until it gets back to a state in which the
+@code{error} token is acceptable. (This means that the subexpressions
+already parsed are discarded, back to the last complete @code{stmnts}.)
+At this point the @code{error} token can be shifted. Then, if the old
+look-ahead token is not acceptable to be shifted next, the parser reads
+tokens and discards them until it finds a token which is acceptable. In
+this example, Bison reads and discards input until the next newline so
+that the fourth rule can apply. Note that discarded symbols are
+possible sources of memory leaks, see @ref{Destructor Decl, , Freeing
+Discarded Symbols}, for a means to reclaim this memory.
+
+The choice of error rules in the grammar is a choice of strategies for
+error recovery. A simple and useful strategy is simply to skip the rest of
+the current input line or current statement if an error is detected:
+
+@example
+stmnt: error ';' /* On error, skip until ';' is read. */
+@end example
+
+It is also useful to recover to the matching close-delimiter of an
+opening-delimiter that has already been parsed. Otherwise the
+close-delimiter will probably appear to be unmatched, and generate another,
+spurious error message:
+
+@example
+primary: '(' expr ')'
+ | '(' error ')'
+ @dots{}
+ ;
+@end example
+
+Error recovery strategies are necessarily guesses. When they guess wrong,
+one syntax error often leads to another. In the above example, the error
+recovery rule guesses that an error is due to bad input within one
+@code{stmnt}. Suppose that instead a spurious semicolon is inserted in the
+middle of a valid @code{stmnt}. After the error recovery rule recovers
+from the first error, another syntax error will be found straightaway,
+since the text following the spurious semicolon is also an invalid
+@code{stmnt}.
+
+To prevent an outpouring of error messages, the parser will output no error
+message for another syntax error that happens shortly after the first; only
+after three consecutive input tokens have been successfully shifted will
+error messages resume.
+
+Note that rules which accept the @code{error} token may have actions, just
+as any other rules can.
+
+@findex yyerrok
+You can make error messages resume immediately by using the macro
+@code{yyerrok} in an action. If you do this in the error rule's action, no
+error messages will be suppressed. This macro requires no arguments;
+@samp{yyerrok;} is a valid C statement.
+
+@findex yyclearin
+The previous look-ahead token is reanalyzed immediately after an error. If
+this is unacceptable, then the macro @code{yyclearin} may be used to clear
+this token. Write the statement @samp{yyclearin;} in the error rule's
+action.
+@xref{Action Features, ,Special Features for Use in Actions}.
+
+For example, suppose that on a syntax error, an error handling routine is
+called that advances the input stream to some point where parsing should
+once again commence. The next symbol returned by the lexical scanner is
+probably correct. The previous look-ahead token ought to be discarded
+with @samp{yyclearin;}.
+
+@vindex YYRECOVERING
+The expression @code{YYRECOVERING ()} yields 1 when the parser
+is recovering from a syntax error, and 0 otherwise.
+Syntax error diagnostics are suppressed while recovering from a syntax
+error.
+
+@node Context Dependency
+@chapter Handling Context Dependencies
+
+The Bison paradigm is to parse tokens first, then group them into larger
+syntactic units. In many languages, the meaning of a token is affected by
+its context. Although this violates the Bison paradigm, certain techniques
+(known as @dfn{kludges}) may enable you to write Bison parsers for such
+languages.
+
+@menu
+* Semantic Tokens:: Token parsing can depend on the semantic context.
+* Lexical Tie-ins:: Token parsing can depend on the syntactic context.
+* Tie-in Recovery:: Lexical tie-ins have implications for how
+ error recovery rules must be written.
+@end menu
+
+(Actually, ``kludge'' means any technique that gets its job done but is
+neither clean nor robust.)
+
+@node Semantic Tokens
+@section Semantic Info in Token Types
+
+The C language has a context dependency: the way an identifier is used
+depends on what its current meaning is. For example, consider this:
+
+@example
+foo (x);
+@end example
+
+This looks like a function call statement, but if @code{foo} is a typedef
+name, then this is actually a declaration of @code{x}. How can a Bison
+parser for C decide how to parse this input?
+
+The method used in @acronym{GNU} C is to have two different token types,
+@code{IDENTIFIER} and @code{TYPENAME}. When @code{yylex} finds an
+identifier, it looks up the current declaration of the identifier in order
+to decide which token type to return: @code{TYPENAME} if the identifier is
+declared as a typedef, @code{IDENTIFIER} otherwise.
+
+The grammar rules can then express the context dependency by the choice of
+token type to recognize. @code{IDENTIFIER} is accepted as an expression,
+but @code{TYPENAME} is not. @code{TYPENAME} can start a declaration, but
+@code{IDENTIFIER} cannot. In contexts where the meaning of the identifier
+is @emph{not} significant, such as in declarations that can shadow a
+typedef name, either @code{TYPENAME} or @code{IDENTIFIER} is
+accepted---there is one rule for each of the two token types.
+
+This technique is simple to use if the decision of which kinds of
+identifiers to allow is made at a place close to where the identifier is
+parsed. But in C this is not always so: C allows a declaration to
+redeclare a typedef name provided an explicit type has been specified
+earlier:
+
+@example
+typedef int foo, bar;
+int baz (void)
+@{
+ static bar (bar); /* @r{redeclare @code{bar} as static variable} */
+ extern foo foo (foo); /* @r{redeclare @code{foo} as function} */
+ return foo (bar);
+@}
+@end example
+
+Unfortunately, the name being declared is separated from the declaration
+construct itself by a complicated syntactic structure---the ``declarator''.
+
+As a result, part of the Bison parser for C needs to be duplicated, with
+all the nonterminal names changed: once for parsing a declaration in
+which a typedef name can be redefined, and once for parsing a
+declaration in which that can't be done. Here is a part of the
+duplication, with actions omitted for brevity:
+
+@example
+initdcl:
+ declarator maybeasm '='
+ init
+ | declarator maybeasm
+ ;
+
+notype_initdcl:
+ notype_declarator maybeasm '='
+ init
+ | notype_declarator maybeasm
+ ;
+@end example
+
+@noindent
+Here @code{initdcl} can redeclare a typedef name, but @code{notype_initdcl}
+cannot. The distinction between @code{declarator} and
+@code{notype_declarator} is the same sort of thing.
+
+There is some similarity between this technique and a lexical tie-in
+(described next), in that information which alters the lexical analysis is
+changed during parsing by other parts of the program. The difference is
+here the information is global, and is used for other purposes in the
+program. A true lexical tie-in has a special-purpose flag controlled by
+the syntactic context.
+
+@node Lexical Tie-ins
+@section Lexical Tie-ins
+@cindex lexical tie-in
+
+One way to handle context-dependency is the @dfn{lexical tie-in}: a flag
+which is set by Bison actions, whose purpose is to alter the way tokens are
+parsed.
+
+For example, suppose we have a language vaguely like C, but with a special
+construct @samp{hex (@var{hex-expr})}. After the keyword @code{hex} comes
+an expression in parentheses in which all integers are hexadecimal. In
+particular, the token @samp{a1b} must be treated as an integer rather than
+as an identifier if it appears in that context. Here is how you can do it:
+
+@example
+@group
+%@{
+ int hexflag;
+ int yylex (void);
+ void yyerror (char const *);
+%@}
+%%
+@dots{}
+@end group
+@group
+expr: IDENTIFIER
+ | constant
+ | HEX '('
+ @{ hexflag = 1; @}
+ expr ')'
+ @{ hexflag = 0;
+ $$ = $4; @}
+ | expr '+' expr
+ @{ $$ = make_sum ($1, $3); @}
+ @dots{}
+ ;
+@end group
+
+@group
+constant:
+ INTEGER
+ | STRING
+ ;
+@end group
+@end example
+
+@noindent
+Here we assume that @code{yylex} looks at the value of @code{hexflag}; when
+it is nonzero, all integers are parsed in hexadecimal, and tokens starting
+with letters are parsed as integers if possible.
+
+The declaration of @code{hexflag} shown in the prologue of the parser file
+is needed to make it accessible to the actions (@pxref{Prologue, ,The Prologue}).
+You must also write the code in @code{yylex} to obey the flag.
+
+@node Tie-in Recovery
+@section Lexical Tie-ins and Error Recovery
+
+Lexical tie-ins make strict demands on any error recovery rules you have.
+@xref{Error Recovery}.
+
+The reason for this is that the purpose of an error recovery rule is to
+abort the parsing of one construct and resume in some larger construct.
+For example, in C-like languages, a typical error recovery rule is to skip
+tokens until the next semicolon, and then start a new statement, like this:
+
+@example
+stmt: expr ';'
+ | IF '(' expr ')' stmt @{ @dots{} @}
+ @dots{}
+ error ';'
+ @{ hexflag = 0; @}
+ ;
+@end example
+
+If there is a syntax error in the middle of a @samp{hex (@var{expr})}
+construct, this error rule will apply, and then the action for the
+completed @samp{hex (@var{expr})} will never run. So @code{hexflag} would
+remain set for the entire rest of the input, or until the next @code{hex}
+keyword, causing identifiers to be misinterpreted as integers.
+
+To avoid this problem the error recovery rule itself clears @code{hexflag}.
+
+There may also be an error recovery rule that works within expressions.
+For example, there could be a rule which applies within parentheses
+and skips to the close-parenthesis:
+
+@example
+@group
+expr: @dots{}
+ | '(' expr ')'
+ @{ $$ = $2; @}
+ | '(' error ')'
+ @dots{}
+@end group
+@end example
+
+If this rule acts within the @code{hex} construct, it is not going to abort
+that construct (since it applies to an inner level of parentheses within
+the construct). Therefore, it should not clear the flag: the rest of
+the @code{hex} construct should be parsed with the flag still in effect.
+
+What if there is an error recovery rule which might abort out of the
+@code{hex} construct or might not, depending on circumstances? There is no
+way you can write the action to determine whether a @code{hex} construct is
+being aborted or not. So if you are using a lexical tie-in, you had better
+make sure your error recovery rules are not of this kind. Each rule must
+be such that you can be sure that it always will, or always won't, have to
+clear the flag.
+
+@c ================================================== Debugging Your Parser
+
+@node Debugging
+@chapter Debugging Your Parser
+
+Developing a parser can be a challenge, especially if you don't
+understand the algorithm (@pxref{Algorithm, ,The Bison Parser
+Algorithm}). Even so, sometimes a detailed description of the automaton
+can help (@pxref{Understanding, , Understanding Your Parser}), or
+tracing the execution of the parser can give some insight on why it
+behaves improperly (@pxref{Tracing, , Tracing Your Parser}).
+
+@menu
+* Understanding:: Understanding the structure of your parser.
+* Tracing:: Tracing the execution of your parser.
+@end menu
+
+@node Understanding
+@section Understanding Your Parser
+
+As documented elsewhere (@pxref{Algorithm, ,The Bison Parser Algorithm})
+Bison parsers are @dfn{shift/reduce automata}. In some cases (much more
+frequent than one would hope), looking at this automaton is required to
+tune or simply fix a parser. Bison provides two different
+representation of it, either textually or graphically (as a @acronym{VCG}
+file).
+
+The textual file is generated when the options @option{--report} or
+@option{--verbose} are specified, see @xref{Invocation, , Invoking
+Bison}. Its name is made by removing @samp{.tab.c} or @samp{.c} from
+the parser output file name, and adding @samp{.output} instead.
+Therefore, if the input file is @file{foo.y}, then the parser file is
+called @file{foo.tab.c} by default. As a consequence, the verbose
+output file is called @file{foo.output}.
+
+The following grammar file, @file{calc.y}, will be used in the sequel:
+
+@example
+%token NUM STR
+%left '+' '-'
+%left '*'
+%%
+exp: exp '+' exp
+ | exp '-' exp
+ | exp '*' exp
+ | exp '/' exp
+ | NUM
+ ;
+useless: STR;
+%%
+@end example
+
+@command{bison} reports:
+
+@example
+calc.y: warning: 1 useless nonterminal and 1 useless rule
+calc.y:11.1-7: warning: useless nonterminal: useless
+calc.y:11.10-12: warning: useless rule: useless: STR
+calc.y: conflicts: 7 shift/reduce
+@end example
+
+When given @option{--report=state}, in addition to @file{calc.tab.c}, it
+creates a file @file{calc.output} with contents detailed below. The
+order of the output and the exact presentation might vary, but the
+interpretation is the same.
+
+The first section includes details on conflicts that were solved thanks
+to precedence and/or associativity:
+
+@example
+Conflict in state 8 between rule 2 and token '+' resolved as reduce.
+Conflict in state 8 between rule 2 and token '-' resolved as reduce.
+Conflict in state 8 between rule 2 and token '*' resolved as shift.
+@exdent @dots{}
+@end example
+
+@noindent
+The next section lists states that still have conflicts.
+
+@example
+State 8 conflicts: 1 shift/reduce
+State 9 conflicts: 1 shift/reduce
+State 10 conflicts: 1 shift/reduce
+State 11 conflicts: 4 shift/reduce
+@end example
+
+@noindent
+@cindex token, useless
+@cindex useless token
+@cindex nonterminal, useless
+@cindex useless nonterminal
+@cindex rule, useless
+@cindex useless rule
+The next section reports useless tokens, nonterminal and rules. Useless
+nonterminals and rules are removed in order to produce a smaller parser,
+but useless tokens are preserved, since they might be used by the
+scanner (note the difference between ``useless'' and ``not used''
+below):
+
+@example
+Useless nonterminals:
+ useless
+
+Terminals which are not used:
+ STR
+
+Useless rules:
+#6 useless: STR;
+@end example
+
+@noindent
+The next section reproduces the exact grammar that Bison used:
+
+@example
+Grammar
+
+ Number, Line, Rule
+ 0 5 $accept -> exp $end
+ 1 5 exp -> exp '+' exp
+ 2 6 exp -> exp '-' exp
+ 3 7 exp -> exp '*' exp
+ 4 8 exp -> exp '/' exp
+ 5 9 exp -> NUM
+@end example
+
+@noindent
+and reports the uses of the symbols:
+
+@example
+Terminals, with rules where they appear
+
+$end (0) 0
+'*' (42) 3
+'+' (43) 1
+'-' (45) 2
+'/' (47) 4
+error (256)
+NUM (258) 5
+
+Nonterminals, with rules where they appear
+
+$accept (8)
+ on left: 0
+exp (9)
+ on left: 1 2 3 4 5, on right: 0 1 2 3 4
+@end example
+
+@noindent
+@cindex item
+@cindex pointed rule
+@cindex rule, pointed
+Bison then proceeds onto the automaton itself, describing each state
+with it set of @dfn{items}, also known as @dfn{pointed rules}. Each
+item is a production rule together with a point (marked by @samp{.})
+that the input cursor.
+
+@example
+state 0
+
+ $accept -> . exp $ (rule 0)
+
+ NUM shift, and go to state 1
+
+ exp go to state 2
+@end example
+
+This reads as follows: ``state 0 corresponds to being at the very
+beginning of the parsing, in the initial rule, right before the start
+symbol (here, @code{exp}). When the parser returns to this state right
+after having reduced a rule that produced an @code{exp}, the control
+flow jumps to state 2. If there is no such transition on a nonterminal
+symbol, and the look-ahead is a @code{NUM}, then this token is shifted on
+the parse stack, and the control flow jumps to state 1. Any other
+look-ahead triggers a syntax error.''
+
+@cindex core, item set
+@cindex item set core
+@cindex kernel, item set
+@cindex item set core
+Even though the only active rule in state 0 seems to be rule 0, the
+report lists @code{NUM} as a look-ahead token because @code{NUM} can be
+at the beginning of any rule deriving an @code{exp}. By default Bison
+reports the so-called @dfn{core} or @dfn{kernel} of the item set, but if
+you want to see more detail you can invoke @command{bison} with
+@option{--report=itemset} to list all the items, include those that can
+be derived:
+
+@example
+state 0
+
+ $accept -> . exp $ (rule 0)
+ exp -> . exp '+' exp (rule 1)
+ exp -> . exp '-' exp (rule 2)
+ exp -> . exp '*' exp (rule 3)
+ exp -> . exp '/' exp (rule 4)
+ exp -> . NUM (rule 5)
+
+ NUM shift, and go to state 1
+
+ exp go to state 2
+@end example
+
+@noindent
+In the state 1...
+
+@example
+state 1
+
+ exp -> NUM . (rule 5)
+
+ $default reduce using rule 5 (exp)
+@end example
+
+@noindent
+the rule 5, @samp{exp: NUM;}, is completed. Whatever the look-ahead token
+(@samp{$default}), the parser will reduce it. If it was coming from
+state 0, then, after this reduction it will return to state 0, and will
+jump to state 2 (@samp{exp: go to state 2}).
+
+@example
+state 2
+
+ $accept -> exp . $ (rule 0)
+ exp -> exp . '+' exp (rule 1)
+ exp -> exp . '-' exp (rule 2)
+ exp -> exp . '*' exp (rule 3)
+ exp -> exp . '/' exp (rule 4)
+
+ $ shift, and go to state 3
+ '+' shift, and go to state 4
+ '-' shift, and go to state 5
+ '*' shift, and go to state 6
+ '/' shift, and go to state 7
+@end example
+
+@noindent
+In state 2, the automaton can only shift a symbol. For instance,
+because of the item @samp{exp -> exp . '+' exp}, if the look-ahead if
+@samp{+}, it will be shifted on the parse stack, and the automaton
+control will jump to state 4, corresponding to the item @samp{exp -> exp
+'+' . exp}. Since there is no default action, any other token than
+those listed above will trigger a syntax error.
+
+The state 3 is named the @dfn{final state}, or the @dfn{accepting
+state}:
+
+@example
+state 3
+
+ $accept -> exp $ . (rule 0)
+
+ $default accept
+@end example
+
+@noindent
+the initial rule is completed (the start symbol and the end
+of input were read), the parsing exits successfully.
+
+The interpretation of states 4 to 7 is straightforward, and is left to
+the reader.
+
+@example
+state 4
+
+ exp -> exp '+' . exp (rule 1)
+
+ NUM shift, and go to state 1
+
+ exp go to state 8
+
+state 5
+
+ exp -> exp '-' . exp (rule 2)
+
+ NUM shift, and go to state 1
+
+ exp go to state 9
+
+state 6
+
+ exp -> exp '*' . exp (rule 3)
+
+ NUM shift, and go to state 1
+
+ exp go to state 10
+
+state 7
+
+ exp -> exp '/' . exp (rule 4)
+
+ NUM shift, and go to state 1
+
+ exp go to state 11
+@end example
+
+As was announced in beginning of the report, @samp{State 8 conflicts:
+1 shift/reduce}:
+
+@example
+state 8
+
+ exp -> exp . '+' exp (rule 1)
+ exp -> exp '+' exp . (rule 1)
+ exp -> exp . '-' exp (rule 2)
+ exp -> exp . '*' exp (rule 3)
+ exp -> exp . '/' exp (rule 4)
+
+ '*' shift, and go to state 6
+ '/' shift, and go to state 7
+
+ '/' [reduce using rule 1 (exp)]
+ $default reduce using rule 1 (exp)
+@end example
+
+Indeed, there are two actions associated to the look-ahead @samp{/}:
+either shifting (and going to state 7), or reducing rule 1. The
+conflict means that either the grammar is ambiguous, or the parser lacks
+information to make the right decision. Indeed the grammar is
+ambiguous, as, since we did not specify the precedence of @samp{/}, the
+sentence @samp{NUM + NUM / NUM} can be parsed as @samp{NUM + (NUM /
+NUM)}, which corresponds to shifting @samp{/}, or as @samp{(NUM + NUM) /
+NUM}, which corresponds to reducing rule 1.
+
+Because in @acronym{LALR}(1) parsing a single decision can be made, Bison
+arbitrarily chose to disable the reduction, see @ref{Shift/Reduce, ,
+Shift/Reduce Conflicts}. Discarded actions are reported in between
+square brackets.
+
+Note that all the previous states had a single possible action: either
+shifting the next token and going to the corresponding state, or
+reducing a single rule. In the other cases, i.e., when shifting
+@emph{and} reducing is possible or when @emph{several} reductions are
+possible, the look-ahead is required to select the action. State 8 is
+one such state: if the look-ahead is @samp{*} or @samp{/} then the action
+is shifting, otherwise the action is reducing rule 1. In other words,
+the first two items, corresponding to rule 1, are not eligible when the
+look-ahead token is @samp{*}, since we specified that @samp{*} has higher
+precedence than @samp{+}. More generally, some items are eligible only
+with some set of possible look-ahead tokens. When run with
+@option{--report=look-ahead}, Bison specifies these look-ahead tokens:
+
+@example
+state 8
+
+ exp -> exp . '+' exp [$, '+', '-', '/'] (rule 1)
+ exp -> exp '+' exp . [$, '+', '-', '/'] (rule 1)
+ exp -> exp . '-' exp (rule 2)
+ exp -> exp . '*' exp (rule 3)
+ exp -> exp . '/' exp (rule 4)
+
+ '*' shift, and go to state 6
+ '/' shift, and go to state 7
+
+ '/' [reduce using rule 1 (exp)]
+ $default reduce using rule 1 (exp)
+@end example
+
+The remaining states are similar:
+
+@example
+state 9
+
+ exp -> exp . '+' exp (rule 1)
+ exp -> exp . '-' exp (rule 2)
+ exp -> exp '-' exp . (rule 2)
+ exp -> exp . '*' exp (rule 3)
+ exp -> exp . '/' exp (rule 4)
+
+ '*' shift, and go to state 6
+ '/' shift, and go to state 7
+
+ '/' [reduce using rule 2 (exp)]
+ $default reduce using rule 2 (exp)
+
+state 10
+
+ exp -> exp . '+' exp (rule 1)
+ exp -> exp . '-' exp (rule 2)
+ exp -> exp . '*' exp (rule 3)
+ exp -> exp '*' exp . (rule 3)
+ exp -> exp . '/' exp (rule 4)
+
+ '/' shift, and go to state 7
+
+ '/' [reduce using rule 3 (exp)]
+ $default reduce using rule 3 (exp)
+
+state 11
+
+ exp -> exp . '+' exp (rule 1)
+ exp -> exp . '-' exp (rule 2)
+ exp -> exp . '*' exp (rule 3)
+ exp -> exp . '/' exp (rule 4)
+ exp -> exp '/' exp . (rule 4)
+
+ '+' shift, and go to state 4
+ '-' shift, and go to state 5
+ '*' shift, and go to state 6
+ '/' shift, and go to state 7
+
+ '+' [reduce using rule 4 (exp)]
+ '-' [reduce using rule 4 (exp)]
+ '*' [reduce using rule 4 (exp)]
+ '/' [reduce using rule 4 (exp)]
+ $default reduce using rule 4 (exp)
+@end example
+
+@noindent
+Observe that state 11 contains conflicts not only due to the lack of
+precedence of @samp{/} with respect to @samp{+}, @samp{-}, and
+@samp{*}, but also because the
+associativity of @samp{/} is not specified.
+
+
+@node Tracing
+@section Tracing Your Parser
+@findex yydebug
+@cindex debugging
+@cindex tracing the parser
+
+If a Bison grammar compiles properly but doesn't do what you want when it
+runs, the @code{yydebug} parser-trace feature can help you figure out why.
+
+There are several means to enable compilation of trace facilities:
+
+@table @asis
+@item the macro @code{YYDEBUG}
+@findex YYDEBUG
+Define the macro @code{YYDEBUG} to a nonzero value when you compile the
+parser. This is compliant with @acronym{POSIX} Yacc. You could use
+@samp{-DYYDEBUG=1} as a compiler option or you could put @samp{#define
+YYDEBUG 1} in the prologue of the grammar file (@pxref{Prologue, , The
+Prologue}).
+
+@item the option @option{-t}, @option{--debug}
+Use the @samp{-t} option when you run Bison (@pxref{Invocation,
+,Invoking Bison}). This is @acronym{POSIX} compliant too.
+
+@item the directive @samp{%debug}
+@findex %debug
+Add the @code{%debug} directive (@pxref{Decl Summary, ,Bison
+Declaration Summary}). This is a Bison extension, which will prove
+useful when Bison will output parsers for languages that don't use a
+preprocessor. Unless @acronym{POSIX} and Yacc portability matter to
+you, this is
+the preferred solution.
+@end table
+
+We suggest that you always enable the debug option so that debugging is
+always possible.
+
+The trace facility outputs messages with macro calls of the form
+@code{YYFPRINTF (stderr, @var{format}, @var{args})} where
+@var{format} and @var{args} are the usual @code{printf} format and
+arguments. If you define @code{YYDEBUG} to a nonzero value but do not
+define @code{YYFPRINTF}, @code{<stdio.h>} is automatically included
+and @code{YYPRINTF} is defined to @code{fprintf}.
+
+Once you have compiled the program with trace facilities, the way to
+request a trace is to store a nonzero value in the variable @code{yydebug}.
+You can do this by making the C code do it (in @code{main}, perhaps), or
+you can alter the value with a C debugger.
+
+Each step taken by the parser when @code{yydebug} is nonzero produces a
+line or two of trace information, written on @code{stderr}. The trace
+messages tell you these things:
+
+@itemize @bullet
+@item
+Each time the parser calls @code{yylex}, what kind of token was read.
+
+@item
+Each time a token is shifted, the depth and complete contents of the
+state stack (@pxref{Parser States}).
+
+@item
+Each time a rule is reduced, which rule it is, and the complete contents
+of the state stack afterward.
+@end itemize
+
+To make sense of this information, it helps to refer to the listing file
+produced by the Bison @samp{-v} option (@pxref{Invocation, ,Invoking
+Bison}). This file shows the meaning of each state in terms of
+positions in various rules, and also what each state will do with each
+possible input token. As you read the successive trace messages, you
+can see that the parser is functioning according to its specification in
+the listing file. Eventually you will arrive at the place where
+something undesirable happens, and you will see which parts of the
+grammar are to blame.
+
+The parser file is a C program and you can use C debuggers on it, but it's
+not easy to interpret what it is doing. The parser function is a
+finite-state machine interpreter, and aside from the actions it executes
+the same code over and over. Only the values of variables show where in
+the grammar it is working.
+
+@findex YYPRINT
+The debugging information normally gives the token type of each token
+read, but not its semantic value. You can optionally define a macro
+named @code{YYPRINT} to provide a way to print the value. If you define
+@code{YYPRINT}, it should take three arguments. The parser will pass a
+standard I/O stream, the numeric code for the token type, and the token
+value (from @code{yylval}).
+
+Here is an example of @code{YYPRINT} suitable for the multi-function
+calculator (@pxref{Mfcalc Decl, ,Declarations for @code{mfcalc}}):
+
+@smallexample
+%@{
+ static void print_token_value (FILE *, int, YYSTYPE);
+ #define YYPRINT(file, type, value) print_token_value (file, type, value)
+%@}
+
+@dots{} %% @dots{} %% @dots{}
+
+static void
+print_token_value (FILE *file, int type, YYSTYPE value)
+@{
+ if (type == VAR)
+ fprintf (file, "%s", value.tptr->name);
+ else if (type == NUM)
+ fprintf (file, "%d", value.val);
+@}
+@end smallexample
+
+@c ================================================= Invoking Bison
+
+@node Invocation
+@chapter Invoking Bison
+@cindex invoking Bison
+@cindex Bison invocation
+@cindex options for invoking Bison
+
+The usual way to invoke Bison is as follows:
+
+@example
+bison @var{infile}
+@end example
+
+Here @var{infile} is the grammar file name, which usually ends in
+@samp{.y}. The parser file's name is made by replacing the @samp{.y}
+with @samp{.tab.c} and removing any leading directory. Thus, the
+@samp{bison foo.y} file name yields
+@file{foo.tab.c}, and the @samp{bison hack/foo.y} file name yields
+@file{foo.tab.c}. It's also possible, in case you are writing
+C++ code instead of C in your grammar file, to name it @file{foo.ypp}
+or @file{foo.y++}. Then, the output files will take an extension like
+the given one as input (respectively @file{foo.tab.cpp} and
+@file{foo.tab.c++}).
+This feature takes effect with all options that manipulate file names like
+@samp{-o} or @samp{-d}.
+
+For example :
+
+@example
+bison -d @var{infile.yxx}
+@end example
+@noindent
+will produce @file{infile.tab.cxx} and @file{infile.tab.hxx}, and
+
+@example
+bison -d -o @var{output.c++} @var{infile.y}
+@end example
+@noindent
+will produce @file{output.c++} and @file{outfile.h++}.
+
+For compatibility with @acronym{POSIX}, the standard Bison
+distribution also contains a shell script called @command{yacc} that
+invokes Bison with the @option{-y} option.
+
+@menu
+* Bison Options:: All the options described in detail,
+ in alphabetical order by short options.
+* Option Cross Key:: Alphabetical list of long options.
+* Yacc Library:: Yacc-compatible @code{yylex} and @code{main}.
+@end menu
+
+@node Bison Options
+@section Bison Options
+
+Bison supports both traditional single-letter options and mnemonic long
+option names. Long option names are indicated with @samp{--} instead of
+@samp{-}. Abbreviations for option names are allowed as long as they
+are unique. When a long option takes an argument, like
+@samp{--file-prefix}, connect the option name and the argument with
+@samp{=}.
+
+Here is a list of options that can be used with Bison, alphabetized by
+short option. It is followed by a cross key alphabetized by long
+option.
+
+@c Please, keep this ordered as in `bison --help'.
+@noindent
+Operations modes:
+@table @option
+@item -h
+@itemx --help
+Print a summary of the command-line options to Bison and exit.
+
+@item -V
+@itemx --version
+Print the version number of Bison and exit.
+
+@item --print-localedir
+Print the name of the directory containing locale-dependent data.
+
+@item -y
+@itemx --yacc
+Act more like the traditional Yacc command. This can cause
+different diagnostics to be generated, and may change behavior in
+other minor ways. Most importantly, imitate Yacc's output
+file name conventions, so that the parser output file is called
+@file{y.tab.c}, and the other outputs are called @file{y.output} and
+@file{y.tab.h}. Thus, the following shell script can substitute
+for Yacc, and the Bison distribution contains such a script for
+compatibility with @acronym{POSIX}:
+
+@example
+#! /bin/sh
+bison -y "$@@"
+@end example
+
+The @option{-y}/@option{--yacc} option is intended for use with
+traditional Yacc grammars. If your grammar uses a Bison extension
+like @samp{%glr-parser}, Bison might not be Yacc-compatible even if
+this option is specified.
+
+@end table
+
+@noindent
+Tuning the parser:
+
+@table @option
+@item -S @var{file}
+@itemx --skeleton=@var{file}
+Specify the skeleton to use. You probably don't need this option unless
+you are developing Bison.
+
+@item -t
+@itemx --debug
+In the parser file, define the macro @code{YYDEBUG} to 1 if it is not
+already defined, so that the debugging facilities are compiled.
+@xref{Tracing, ,Tracing Your Parser}.
+
+@item --locations
+Pretend that @code{%locations} was specified. @xref{Decl Summary}.
+
+@item -p @var{prefix}
+@itemx --name-prefix=@var{prefix}
+Pretend that @code{%name-prefix="@var{prefix}"} was specified.
+@xref{Decl Summary}.
+
+@item -l
+@itemx --no-lines
+Don't put any @code{#line} preprocessor commands in the parser file.
+Ordinarily Bison puts them in the parser file so that the C compiler
+and debuggers will associate errors with your source file, the
+grammar file. This option causes them to associate errors with the
+parser file, treating it as an independent source file in its own right.
+
+@item -n
+@itemx --no-parser
+Pretend that @code{%no-parser} was specified. @xref{Decl Summary}.
+
+@item -k
+@itemx --token-table
+Pretend that @code{%token-table} was specified. @xref{Decl Summary}.
+@end table
+
+@noindent
+Adjust the output:
+
+@table @option
+@item -d
+@itemx --defines
+Pretend that @code{%defines} was specified, i.e., write an extra output
+file containing macro definitions for the token type names defined in
+the grammar, as well as a few other declarations. @xref{Decl Summary}.
+
+@item --defines=@var{defines-file}
+Same as above, but save in the file @var{defines-file}.
+
+@item -b @var{file-prefix}
+@itemx --file-prefix=@var{prefix}
+Pretend that @code{%file-prefix} was specified, i.e, specify prefix to use
+for all Bison output file names. @xref{Decl Summary}.
+
+@item -r @var{things}
+@itemx --report=@var{things}
+Write an extra output file containing verbose description of the comma
+separated list of @var{things} among:
+
+@table @code
+@item state
+Description of the grammar, conflicts (resolved and unresolved), and
+@acronym{LALR} automaton.
+
+@item look-ahead
+Implies @code{state} and augments the description of the automaton with
+each rule's look-ahead set.
+
+@item itemset
+Implies @code{state} and augments the description of the automaton with
+the full set of items for each state, instead of its core only.
+@end table
+
+@item -v
+@itemx --verbose
+Pretend that @code{%verbose} was specified, i.e, write an extra output
+file containing verbose descriptions of the grammar and
+parser. @xref{Decl Summary}.
+
+@item -o @var{file}
+@itemx --output=@var{file}
+Specify the @var{file} for the parser file.
+
+The other output files' names are constructed from @var{file} as
+described under the @samp{-v} and @samp{-d} options.
+
+@item -g
+Output a @acronym{VCG} definition of the @acronym{LALR}(1) grammar
+automaton computed by Bison. If the grammar file is @file{foo.y}, the
+@acronym{VCG} output file will
+be @file{foo.vcg}.
+
+@item --graph=@var{graph-file}
+The behavior of @var{--graph} is the same than @samp{-g}. The only
+difference is that it has an optional argument which is the name of
+the output graph file.
+@end table
+
+@node Option Cross Key
+@section Option Cross Key
+
+@c FIXME: How about putting the directives too?
+Here is a list of options, alphabetized by long option, to help you find
+the corresponding short option.
+
+@multitable {@option{--defines=@var{defines-file}}} {@option{-b @var{file-prefix}XXX}}
+@headitem Long Option @tab Short Option
+@item @option{--debug} @tab @option{-t}
+@item @option{--defines=@var{defines-file}} @tab @option{-d}
+@item @option{--file-prefix=@var{prefix}} @tab @option{-b @var{file-prefix}}
+@item @option{--graph=@var{graph-file}} @tab @option{-d}
+@item @option{--help} @tab @option{-h}
+@item @option{--name-prefix=@var{prefix}} @tab @option{-p @var{name-prefix}}
+@item @option{--no-lines} @tab @option{-l}
+@item @option{--no-parser} @tab @option{-n}
+@item @option{--output=@var{outfile}} @tab @option{-o @var{outfile}}
+@item @option{--print-localedir} @tab
+@item @option{--token-table} @tab @option{-k}
+@item @option{--verbose} @tab @option{-v}
+@item @option{--version} @tab @option{-V}
+@item @option{--yacc} @tab @option{-y}
+@end multitable
+
+@node Yacc Library
+@section Yacc Library
+
+The Yacc library contains default implementations of the
+@code{yyerror} and @code{main} functions. These default
+implementations are normally not useful, but @acronym{POSIX} requires
+them. To use the Yacc library, link your program with the
+@option{-ly} option. Note that Bison's implementation of the Yacc
+library is distributed under the terms of the @acronym{GNU} General
+Public License (@pxref{Copying}).
+
+If you use the Yacc library's @code{yyerror} function, you should
+declare @code{yyerror} as follows:
+
+@example
+int yyerror (char const *);
+@end example
+
+Bison ignores the @code{int} value returned by this @code{yyerror}.
+If you use the Yacc library's @code{main} function, your
+@code{yyparse} function should have the following type signature:
+
+@example
+int yyparse (void);
+@end example
+
+@c ================================================= C++ Bison
+
+@node C++ Language Interface
+@chapter C++ Language Interface
+
+@menu
+* C++ Parsers:: The interface to generate C++ parser classes
+* A Complete C++ Example:: Demonstrating their use
+@end menu
+
+@node C++ Parsers
+@section C++ Parsers
+
+@menu
+* C++ Bison Interface:: Asking for C++ parser generation
+* C++ Semantic Values:: %union vs. C++
+* C++ Location Values:: The position and location classes
+* C++ Parser Interface:: Instantiating and running the parser
+* C++ Scanner Interface:: Exchanges between yylex and parse
+@end menu
+
+@node C++ Bison Interface
+@subsection C++ Bison Interface
+@c - %skeleton "lalr1.cc"
+@c - Always pure
+@c - initial action
+
+The C++ parser @acronym{LALR}(1) skeleton is named @file{lalr1.cc}. To
+select it, you may either pass the option @option{--skeleton=lalr1.cc}
+to Bison, or include the directive @samp{%skeleton "lalr1.cc"} in the
+grammar preamble. When run, @command{bison} will create several
+entities in the @samp{yy} namespace. Use the @samp{%name-prefix}
+directive to change the namespace name, see @ref{Decl Summary}. The
+various classes are generated in the following files:
+
+@table @file
+@item position.hh
+@itemx location.hh
+The definition of the classes @code{position} and @code{location},
+used for location tracking. @xref{C++ Location Values}.
+
+@item stack.hh
+An auxiliary class @code{stack} used by the parser.
+
+@item @var{file}.hh
+@itemx @var{file}.cc
+(Assuming the extension of the input file was @samp{.yy}.) The
+declaration and implementation of the C++ parser class. The basename
+and extension of these two files follow the same rules as with regular C
+parsers (@pxref{Invocation}).
+
+The header is @emph{mandatory}; you must either pass
+@option{-d}/@option{--defines} to @command{bison}, or use the
+@samp{%defines} directive.
+@end table
+
+All these files are documented using Doxygen; run @command{doxygen}
+for a complete and accurate documentation.
+
+@node C++ Semantic Values
+@subsection C++ Semantic Values
+@c - No objects in unions
+@c - YSTYPE
+@c - Printer and destructor
+
+The @code{%union} directive works as for C, see @ref{Union Decl, ,The
+Collection of Value Types}. In particular it produces a genuine
+@code{union}@footnote{In the future techniques to allow complex types
+within pseudo-unions (similar to Boost variants) might be implemented to
+alleviate these issues.}, which have a few specific features in C++.
+@itemize @minus
+@item
+The type @code{YYSTYPE} is defined but its use is discouraged: rather
+you should refer to the parser's encapsulated type
+@code{yy::parser::semantic_type}.
+@item
+Non POD (Plain Old Data) types cannot be used. C++ forbids any
+instance of classes with constructors in unions: only @emph{pointers}
+to such objects are allowed.
+@end itemize
+
+Because objects have to be stored via pointers, memory is not
+reclaimed automatically: using the @code{%destructor} directive is the
+only means to avoid leaks. @xref{Destructor Decl, , Freeing Discarded
+Symbols}.
+
+
+@node C++ Location Values
+@subsection C++ Location Values
+@c - %locations
+@c - class Position
+@c - class Location
+@c - %define "filename_type" "const symbol::Symbol"
+
+When the directive @code{%locations} is used, the C++ parser supports
+location tracking, see @ref{Locations, , Locations Overview}. Two
+auxiliary classes define a @code{position}, a single point in a file,
+and a @code{location}, a range composed of a pair of
+@code{position}s (possibly spanning several files).
+
+@deftypemethod {position} {std::string*} file
+The name of the file. It will always be handled as a pointer, the
+parser will never duplicate nor deallocate it. As an experimental
+feature you may change it to @samp{@var{type}*} using @samp{%define
+"filename_type" "@var{type}"}.
+@end deftypemethod
+
+@deftypemethod {position} {unsigned int} line
+The line, starting at 1.
+@end deftypemethod
+
+@deftypemethod {position} {unsigned int} lines (int @var{height} = 1)
+Advance by @var{height} lines, resetting the column number.
+@end deftypemethod
+
+@deftypemethod {position} {unsigned int} column
+The column, starting at 0.
+@end deftypemethod
+
+@deftypemethod {position} {unsigned int} columns (int @var{width} = 1)
+Advance by @var{width} columns, without changing the line number.
+@end deftypemethod
+
+@deftypemethod {position} {position&} operator+= (position& @var{pos}, int @var{width})
+@deftypemethodx {position} {position} operator+ (const position& @var{pos}, int @var{width})
+@deftypemethodx {position} {position&} operator-= (const position& @var{pos}, int @var{width})
+@deftypemethodx {position} {position} operator- (position& @var{pos}, int @var{width})
+Various forms of syntactic sugar for @code{columns}.
+@end deftypemethod
+
+@deftypemethod {position} {position} operator<< (std::ostream @var{o}, const position& @var{p})
+Report @var{p} on @var{o} like this:
+@samp{@var{file}:@var{line}.@var{column}}, or
+@samp{@var{line}.@var{column}} if @var{file} is null.
+@end deftypemethod
+
+@deftypemethod {location} {position} begin
+@deftypemethodx {location} {position} end
+The first, inclusive, position of the range, and the first beyond.
+@end deftypemethod
+
+@deftypemethod {location} {unsigned int} columns (int @var{width} = 1)
+@deftypemethodx {location} {unsigned int} lines (int @var{height} = 1)
+Advance the @code{end} position.
+@end deftypemethod
+
+@deftypemethod {location} {location} operator+ (const location& @var{begin}, const location& @var{end})
+@deftypemethodx {location} {location} operator+ (const location& @var{begin}, int @var{width})
+@deftypemethodx {location} {location} operator+= (const location& @var{loc}, int @var{width})
+Various forms of syntactic sugar.
+@end deftypemethod
+
+@deftypemethod {location} {void} step ()
+Move @code{begin} onto @code{end}.
+@end deftypemethod
+
+
+@node C++ Parser Interface
+@subsection C++ Parser Interface
+@c - define parser_class_name
+@c - Ctor
+@c - parse, error, set_debug_level, debug_level, set_debug_stream,
+@c debug_stream.
+@c - Reporting errors
+
+The output files @file{@var{output}.hh} and @file{@var{output}.cc}
+declare and define the parser class in the namespace @code{yy}. The
+class name defaults to @code{parser}, but may be changed using
+@samp{%define "parser_class_name" "@var{name}"}. The interface of
+this class is detailed below. It can be extended using the
+@code{%parse-param} feature: its semantics is slightly changed since
+it describes an additional member of the parser class, and an
+additional argument for its constructor.
+
+@defcv {Type} {parser} {semantic_value_type}
+@defcvx {Type} {parser} {location_value_type}
+The types for semantics value and locations.
+@end defcv
+
+@deftypemethod {parser} {} parser (@var{type1} @var{arg1}, ...)
+Build a new parser object. There are no arguments by default, unless
+@samp{%parse-param @{@var{type1} @var{arg1}@}} was used.
+@end deftypemethod
+
+@deftypemethod {parser} {int} parse ()
+Run the syntactic analysis, and return 0 on success, 1 otherwise.
+@end deftypemethod
+
+@deftypemethod {parser} {std::ostream&} debug_stream ()
+@deftypemethodx {parser} {void} set_debug_stream (std::ostream& @var{o})
+Get or set the stream used for tracing the parsing. It defaults to
+@code{std::cerr}.
+@end deftypemethod
+
+@deftypemethod {parser} {debug_level_type} debug_level ()
+@deftypemethodx {parser} {void} set_debug_level (debug_level @var{l})
+Get or set the tracing level. Currently its value is either 0, no trace,
+or nonzero, full tracing.
+@end deftypemethod
+
+@deftypemethod {parser} {void} error (const location_type& @var{l}, const std::string& @var{m})
+The definition for this member function must be supplied by the user:
+the parser uses it to report a parser error occurring at @var{l},
+described by @var{m}.
+@end deftypemethod
+
+
+@node C++ Scanner Interface
+@subsection C++ Scanner Interface
+@c - prefix for yylex.
+@c - Pure interface to yylex
+@c - %lex-param
+
+The parser invokes the scanner by calling @code{yylex}. Contrary to C
+parsers, C++ parsers are always pure: there is no point in using the
+@code{%pure-parser} directive. Therefore the interface is as follows.
+
+@deftypemethod {parser} {int} yylex (semantic_value_type& @var{yylval}, location_type& @var{yylloc}, @var{type1} @var{arg1}, ...)
+Return the next token. Its type is the return value, its semantic
+value and location being @var{yylval} and @var{yylloc}. Invocations of
+@samp{%lex-param @{@var{type1} @var{arg1}@}} yield additional arguments.
+@end deftypemethod
+
+
+@node A Complete C++ Example
+@section A Complete C++ Example
+
+This section demonstrates the use of a C++ parser with a simple but
+complete example. This example should be available on your system,
+ready to compile, in the directory @dfn{../bison/examples/calc++}. It
+focuses on the use of Bison, therefore the design of the various C++
+classes is very naive: no accessors, no encapsulation of members etc.
+We will use a Lex scanner, and more precisely, a Flex scanner, to
+demonstrate the various interaction. A hand written scanner is
+actually easier to interface with.
+
+@menu
+* Calc++ --- C++ Calculator:: The specifications
+* Calc++ Parsing Driver:: An active parsing context
+* Calc++ Parser:: A parser class
+* Calc++ Scanner:: A pure C++ Flex scanner
+* Calc++ Top Level:: Conducting the band
+@end menu
+
+@node Calc++ --- C++ Calculator
+@subsection Calc++ --- C++ Calculator
+
+Of course the grammar is dedicated to arithmetics, a single
+expression, possibly preceded by variable assignments. An
+environment containing possibly predefined variables such as
+@code{one} and @code{two}, is exchanged with the parser. An example
+of valid input follows.
+
+@example
+three := 3
+seven := one + two * three
+seven * seven
+@end example
+
+@node Calc++ Parsing Driver
+@subsection Calc++ Parsing Driver
+@c - An env
+@c - A place to store error messages
+@c - A place for the result
+
+To support a pure interface with the parser (and the scanner) the
+technique of the ``parsing context'' is convenient: a structure
+containing all the data to exchange. Since, in addition to simply
+launch the parsing, there are several auxiliary tasks to execute (open
+the file for parsing, instantiate the parser etc.), we recommend
+transforming the simple parsing context structure into a fully blown
+@dfn{parsing driver} class.
+
+The declaration of this driver class, @file{calc++-driver.hh}, is as
+follows. The first part includes the CPP guard and imports the
+required standard library components, and the declaration of the parser
+class.
+
+@comment file: calc++-driver.hh
+@example
+#ifndef CALCXX_DRIVER_HH
+# define CALCXX_DRIVER_HH
+# include <string>
+# include <map>
+# include "calc++-parser.hh"
+@end example
+
+
+@noindent
+Then comes the declaration of the scanning function. Flex expects
+the signature of @code{yylex} to be defined in the macro
+@code{YY_DECL}, and the C++ parser expects it to be declared. We can
+factor both as follows.
+
+@comment file: calc++-driver.hh
+@example
+// Announce to Flex the prototype we want for lexing function, ...
+# define YY_DECL \
+ yy::calcxx_parser::token_type \
+ yylex (yy::calcxx_parser::semantic_type* yylval, \
+ yy::calcxx_parser::location_type* yylloc, \
+ calcxx_driver& driver)
+// ... and declare it for the parser's sake.
+YY_DECL;
+@end example
+
+@noindent
+The @code{calcxx_driver} class is then declared with its most obvious
+members.
+
+@comment file: calc++-driver.hh
+@example
+// Conducting the whole scanning and parsing of Calc++.
+class calcxx_driver
+@{
+public:
+ calcxx_driver ();
+ virtual ~calcxx_driver ();
+
+ std::map<std::string, int> variables;
+
+ int result;
+@end example
+
+@noindent
+To encapsulate the coordination with the Flex scanner, it is useful to
+have two members function to open and close the scanning phase.
+members.
+
+@comment file: calc++-driver.hh
+@example
+ // Handling the scanner.
+ void scan_begin ();
+ void scan_end ();
+ bool trace_scanning;
+@end example
+
+@noindent
+Similarly for the parser itself.
+
+@comment file: calc++-driver.hh
+@example
+ // Handling the parser.
+ void parse (const std::string& f);
+ std::string file;
+ bool trace_parsing;
+@end example
+
+@noindent
+To demonstrate pure handling of parse errors, instead of simply
+dumping them on the standard error output, we will pass them to the
+compiler driver using the following two member functions. Finally, we
+close the class declaration and CPP guard.
+
+@comment file: calc++-driver.hh
+@example
+ // Error handling.
+ void error (const yy::location& l, const std::string& m);
+ void error (const std::string& m);
+@};
+#endif // ! CALCXX_DRIVER_HH
+@end example
+
+The implementation of the driver is straightforward. The @code{parse}
+member function deserves some attention. The @code{error} functions
+are simple stubs, they should actually register the located error
+messages and set error state.
+
+@comment file: calc++-driver.cc
+@example
+#include "calc++-driver.hh"
+#include "calc++-parser.hh"
+
+calcxx_driver::calcxx_driver ()
+ : trace_scanning (false), trace_parsing (false)
+@{
+ variables["one"] = 1;
+ variables["two"] = 2;
+@}
+
+calcxx_driver::~calcxx_driver ()
+@{
+@}
+
+void
+calcxx_driver::parse (const std::string &f)
+@{
+ file = f;
+ scan_begin ();
+ yy::calcxx_parser parser (*this);
+ parser.set_debug_level (trace_parsing);
+ parser.parse ();
+ scan_end ();
+@}
+
+void
+calcxx_driver::error (const yy::location& l, const std::string& m)
+@{
+ std::cerr << l << ": " << m << std::endl;
+@}
+
+void
+calcxx_driver::error (const std::string& m)
+@{
+ std::cerr << m << std::endl;
+@}
+@end example
+
+@node Calc++ Parser
+@subsection Calc++ Parser
+
+The parser definition file @file{calc++-parser.yy} starts by asking for
+the C++ LALR(1) skeleton, the creation of the parser header file, and
+specifies the name of the parser class. Because the C++ skeleton
+changed several times, it is safer to require the version you designed
+the grammar for.
+
+@comment file: calc++-parser.yy
+@example
+%skeleton "lalr1.cc" /* -*- C++ -*- */
+%require "2.1a"
+%defines
+%define "parser_class_name" "calcxx_parser"
+@end example
+
+@noindent
+Then come the declarations/inclusions needed to define the
+@code{%union}. Because the parser uses the parsing driver and
+reciprocally, both cannot include the header of the other. Because the
+driver's header needs detailed knowledge about the parser class (in
+particular its inner types), it is the parser's header which will simply
+use a forward declaration of the driver.
+
+@comment file: calc++-parser.yy
+@example
+%@{
+# include <string>
+class calcxx_driver;
+%@}
+@end example
+
+@noindent
+The driver is passed by reference to the parser and to the scanner.
+This provides a simple but effective pure interface, not relying on
+global variables.
+
+@comment file: calc++-parser.yy
+@example
+// The parsing context.
+%parse-param @{ calcxx_driver& driver @}
+%lex-param @{ calcxx_driver& driver @}
+@end example
+
+@noindent
+Then we request the location tracking feature, and initialize the
+first location's file name. Afterwards new locations are computed
+relatively to the previous locations: the file name will be
+automatically propagated.
+
+@comment file: calc++-parser.yy
+@example
+%locations
+%initial-action
+@{
+ // Initialize the initial location.
+ @@$.begin.filename = @@$.end.filename = &driver.file;
+@};
+@end example
+
+@noindent
+Use the two following directives to enable parser tracing and verbose
+error messages.
+
+@comment file: calc++-parser.yy
+@example
+%debug
+%error-verbose
+@end example
+
+@noindent
+Semantic values cannot use ``real'' objects, but only pointers to
+them.
+
+@comment file: calc++-parser.yy
+@example
+// Symbols.
+%union
+@{
+ int ival;
+ std::string *sval;
+@};
+@end example
+
+@noindent
+The code between @samp{%@{} and @samp{%@}} after the introduction of the
+@samp{%union} is output in the @file{*.cc} file; it needs detailed
+knowledge about the driver.
+
+@comment file: calc++-parser.yy
+@example
+%@{
+# include "calc++-driver.hh"
+%@}
+@end example
+
+
+@noindent
+The token numbered as 0 corresponds to end of file; the following line
+allows for nicer error messages referring to ``end of file'' instead
+of ``$end''. Similarly user friendly named are provided for each
+symbol. Note that the tokens names are prefixed by @code{TOKEN_} to
+avoid name clashes.
+
+@comment file: calc++-parser.yy
+@example
+%token END 0 "end of file"
+%token ASSIGN ":="
+%token <sval> IDENTIFIER "identifier"
+%token <ival> NUMBER "number"
+%type <ival> exp "expression"
+@end example
+
+@noindent
+To enable memory deallocation during error recovery, use
+@code{%destructor}.
+
+@c FIXME: Document %printer, and mention that it takes a braced-code operand.
+@comment file: calc++-parser.yy
+@example
+%printer @{ debug_stream () << *$$; @} "identifier"
+%destructor @{ delete $$; @} "identifier"
+
+%printer @{ debug_stream () << $$; @} "number" "expression"
+@end example
+
+@noindent
+The grammar itself is straightforward.
+
+@comment file: calc++-parser.yy
+@example
+%%
+%start unit;
+unit: assignments exp @{ driver.result = $2; @};
+
+assignments: assignments assignment @{@}
+ | /* Nothing. */ @{@};
+
+assignment: "identifier" ":=" exp @{ driver.variables[*$1] = $3; @};
+
+%left '+' '-';
+%left '*' '/';
+exp: exp '+' exp @{ $$ = $1 + $3; @}
+ | exp '-' exp @{ $$ = $1 - $3; @}
+ | exp '*' exp @{ $$ = $1 * $3; @}
+ | exp '/' exp @{ $$ = $1 / $3; @}
+ | "identifier" @{ $$ = driver.variables[*$1]; @}
+ | "number" @{ $$ = $1; @};
+%%
+@end example
+
+@noindent
+Finally the @code{error} member function registers the errors to the
+driver.
+
+@comment file: calc++-parser.yy
+@example
+void
+yy::calcxx_parser::error (const yy::calcxx_parser::location_type& l,
+ const std::string& m)
+@{
+ driver.error (l, m);
+@}
+@end example
+
+@node Calc++ Scanner
+@subsection Calc++ Scanner
+
+The Flex scanner first includes the driver declaration, then the
+parser's to get the set of defined tokens.
+
+@comment file: calc++-scanner.ll
+@example
+%@{ /* -*- C++ -*- */
+# include <cstdlib>
+# include <errno.h>
+# include <limits.h>
+# include <string>
+# include "calc++-driver.hh"
+# include "calc++-parser.hh"
+
+/* Work around an incompatibility in flex (at least versions
+ 2.5.31 through 2.5.33): it generates code that does
+ not conform to C89. See Debian bug 333231
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>. */
+# undef yywrap
+# define yywrap() 1
+
+/* By default yylex returns int, we use token_type.
+ Unfortunately yyterminate by default returns 0, which is
+ not of token_type. */
+#define yyterminate() return token::END
+%@}
+@end example
+
+@noindent
+Because there is no @code{#include}-like feature we don't need
+@code{yywrap}, we don't need @code{unput} either, and we parse an
+actual file, this is not an interactive session with the user.
+Finally we enable the scanner tracing features.
+
+@comment file: calc++-scanner.ll
+@example
+%option noyywrap nounput batch debug
+@end example
+
+@noindent
+Abbreviations allow for more readable rules.
+
+@comment file: calc++-scanner.ll
+@example
+id [a-zA-Z][a-zA-Z_0-9]*
+int [0-9]+
+blank [ \t]
+@end example
+
+@noindent
+The following paragraph suffices to track locations accurately. Each
+time @code{yylex} is invoked, the begin position is moved onto the end
+position. Then when a pattern is matched, the end position is
+advanced of its width. In case it matched ends of lines, the end
+cursor is adjusted, and each time blanks are matched, the begin cursor
+is moved onto the end cursor to effectively ignore the blanks
+preceding tokens. Comments would be treated equally.
+
+@comment file: calc++-scanner.ll
+@example
+%@{
+# define YY_USER_ACTION yylloc->columns (yyleng);
+%@}
+%%
+%@{
+ yylloc->step ();
+%@}
+@{blank@}+ yylloc->step ();
+[\n]+ yylloc->lines (yyleng); yylloc->step ();
+@end example
+
+@noindent
+The rules are simple, just note the use of the driver to report errors.
+It is convenient to use a typedef to shorten
+@code{yy::calcxx_parser::token::identifier} into
+@code{token::identifier} for instance.
+
+@comment file: calc++-scanner.ll
+@example
+%@{
+ typedef yy::calcxx_parser::token token;
+%@}
+ /* Convert ints to the actual type of tokens. */
+[-+*/] return yy::calcxx_parser::token_type (yytext[0]);
+":=" return token::ASSIGN;
+@{int@} @{
+ errno = 0;
+ long n = strtol (yytext, NULL, 10);
+ if (! (INT_MIN <= n && n <= INT_MAX && errno != ERANGE))
+ driver.error (*yylloc, "integer is out of range");
+ yylval->ival = n;
+ return token::NUMBER;
+@}
+@{id@} yylval->sval = new std::string (yytext); return token::IDENTIFIER;
+. driver.error (*yylloc, "invalid character");
+%%
+@end example
+
+@noindent
+Finally, because the scanner related driver's member function depend
+on the scanner's data, it is simpler to implement them in this file.
+
+@comment file: calc++-scanner.ll
+@example
+void
+calcxx_driver::scan_begin ()
+@{
+ yy_flex_debug = trace_scanning;
+ if (!(yyin = fopen (file.c_str (), "r")))
+ error (std::string ("cannot open ") + file);
+@}
+
+void
+calcxx_driver::scan_end ()
+@{
+ fclose (yyin);
+@}
+@end example
+
+@node Calc++ Top Level
+@subsection Calc++ Top Level
+
+The top level file, @file{calc++.cc}, poses no problem.
+
+@comment file: calc++.cc
+@example
+#include <iostream>
+#include "calc++-driver.hh"
+
+int
+main (int argc, char *argv[])
+@{
+ calcxx_driver driver;
+ for (++argv; argv[0]; ++argv)
+ if (*argv == std::string ("-p"))
+ driver.trace_parsing = true;
+ else if (*argv == std::string ("-s"))
+ driver.trace_scanning = true;
+ else
+ @{
+ driver.parse (*argv);
+ std::cout << driver.result << std::endl;
+ @}
+@}
+@end example
+
+@c ================================================= FAQ
+
+@node FAQ
+@chapter Frequently Asked Questions
+@cindex frequently asked questions
+@cindex questions
+
+Several questions about Bison come up occasionally. Here some of them
+are addressed.
+
+@menu
+* Memory Exhausted:: Breaking the Stack Limits
+* How Can I Reset the Parser:: @code{yyparse} Keeps some State
+* Strings are Destroyed:: @code{yylval} Loses Track of Strings
+* Implementing Gotos/Loops:: Control Flow in the Calculator
+* Multiple start-symbols:: Factoring closely related grammars
+* Secure? Conform?:: Is Bison @acronym{POSIX} safe?
+* I can't build Bison:: Troubleshooting
+* Where can I find help?:: Troubleshouting
+* Bug Reports:: Troublereporting
+* Other Languages:: Parsers in Java and others
+* Beta Testing:: Experimenting development versions
+* Mailing Lists:: Meeting other Bison users
+@end menu
+
+@node Memory Exhausted
+@section Memory Exhausted
+
+@display
+My parser returns with error with a @samp{memory exhausted}
+message. What can I do?
+@end display
+
+This question is already addressed elsewhere, @xref{Recursion,
+,Recursive Rules}.
+
+@node How Can I Reset the Parser
+@section How Can I Reset the Parser
+
+The following phenomenon has several symptoms, resulting in the
+following typical questions:
+
+@display
+I invoke @code{yyparse} several times, and on correct input it works
+properly; but when a parse error is found, all the other calls fail
+too. How can I reset the error flag of @code{yyparse}?
+@end display
+
+@noindent
+or
+
+@display
+My parser includes support for an @samp{#include}-like feature, in
+which case I run @code{yyparse} from @code{yyparse}. This fails
+although I did specify I needed a @code{%pure-parser}.
+@end display
+
+These problems typically come not from Bison itself, but from
+Lex-generated scanners. Because these scanners use large buffers for
+speed, they might not notice a change of input file. As a
+demonstration, consider the following source file,
+@file{first-line.l}:
+
+@verbatim
+%{
+#include <stdio.h>
+#include <stdlib.h>
+%}
+%%
+.*\n ECHO; return 1;
+%%
+int
+yyparse (char const *file)
+{
+ yyin = fopen (file, "r");
+ if (!yyin)
+ exit (2);
+ /* One token only. */
+ yylex ();
+ if (fclose (yyin) != 0)
+ exit (3);
+ return 0;
+}
+
+int
+main (void)
+{
+ yyparse ("input");
+ yyparse ("input");
+ return 0;
+}
+@end verbatim
+
+@noindent
+If the file @file{input} contains
+
+@verbatim
+input:1: Hello,
+input:2: World!
+@end verbatim
+
+@noindent
+then instead of getting the first line twice, you get:
+
+@example
+$ @kbd{flex -ofirst-line.c first-line.l}
+$ @kbd{gcc -ofirst-line first-line.c -ll}
+$ @kbd{./first-line}
+input:1: Hello,
+input:2: World!
+@end example
+
+Therefore, whenever you change @code{yyin}, you must tell the
+Lex-generated scanner to discard its current buffer and switch to the
+new one. This depends upon your implementation of Lex; see its
+documentation for more. For Flex, it suffices to call
+@samp{YY_FLUSH_BUFFER} after each change to @code{yyin}. If your
+Flex-generated scanner needs to read from several input streams to
+handle features like include files, you might consider using Flex
+functions like @samp{yy_switch_to_buffer} that manipulate multiple
+input buffers.
+
+If your Flex-generated scanner uses start conditions (@pxref{Start
+conditions, , Start conditions, flex, The Flex Manual}), you might
+also want to reset the scanner's state, i.e., go back to the initial
+start condition, through a call to @samp{BEGIN (0)}.
+
+@node Strings are Destroyed
+@section Strings are Destroyed
+
+@display
+My parser seems to destroy old strings, or maybe it loses track of
+them. Instead of reporting @samp{"foo", "bar"}, it reports
+@samp{"bar", "bar"}, or even @samp{"foo\nbar", "bar"}.
+@end display
+
+This error is probably the single most frequent ``bug report'' sent to
+Bison lists, but is only concerned with a misunderstanding of the role
+of the scanner. Consider the following Lex code:
+
+@verbatim
+%{
+#include <stdio.h>
+char *yylval = NULL;
+%}
+%%
+.* yylval = yytext; return 1;
+\n /* IGNORE */
+%%
+int
+main ()
+{
+ /* Similar to using $1, $2 in a Bison action. */
+ char *fst = (yylex (), yylval);
+ char *snd = (yylex (), yylval);
+ printf ("\"%s\", \"%s\"\n", fst, snd);
+ return 0;
+}
+@end verbatim
+
+If you compile and run this code, you get:
+
+@example
+$ @kbd{flex -osplit-lines.c split-lines.l}
+$ @kbd{gcc -osplit-lines split-lines.c -ll}
+$ @kbd{printf 'one\ntwo\n' | ./split-lines}
+"one
+two", "two"
+@end example
+
+@noindent
+this is because @code{yytext} is a buffer provided for @emph{reading}
+in the action, but if you want to keep it, you have to duplicate it
+(e.g., using @code{strdup}). Note that the output may depend on how
+your implementation of Lex handles @code{yytext}. For instance, when
+given the Lex compatibility option @option{-l} (which triggers the
+option @samp{%array}) Flex generates a different behavior:
+
+@example
+$ @kbd{flex -l -osplit-lines.c split-lines.l}
+$ @kbd{gcc -osplit-lines split-lines.c -ll}
+$ @kbd{printf 'one\ntwo\n' | ./split-lines}
+"two", "two"
+@end example
+
+
+@node Implementing Gotos/Loops
+@section Implementing Gotos/Loops
+
+@display
+My simple calculator supports variables, assignments, and functions,
+but how can I implement gotos, or loops?
+@end display
+
+Although very pedagogical, the examples included in the document blur
+the distinction to make between the parser---whose job is to recover
+the structure of a text and to transmit it to subsequent modules of
+the program---and the processing (such as the execution) of this
+structure. This works well with so called straight line programs,
+i.e., precisely those that have a straightforward execution model:
+execute simple instructions one after the others.
+
+@cindex abstract syntax tree
+@cindex @acronym{AST}
+If you want a richer model, you will probably need to use the parser
+to construct a tree that does represent the structure it has
+recovered; this tree is usually called the @dfn{abstract syntax tree},
+or @dfn{@acronym{AST}} for short. Then, walking through this tree,
+traversing it in various ways, will enable treatments such as its
+execution or its translation, which will result in an interpreter or a
+compiler.
+
+This topic is way beyond the scope of this manual, and the reader is
+invited to consult the dedicated literature.
+
+
+@node Multiple start-symbols
+@section Multiple start-symbols
+
+@display
+I have several closely related grammars, and I would like to share their
+implementations. In fact, I could use a single grammar but with
+multiple entry points.
+@end display
+
+Bison does not support multiple start-symbols, but there is a very
+simple means to simulate them. If @code{foo} and @code{bar} are the two
+pseudo start-symbols, then introduce two new tokens, say
+@code{START_FOO} and @code{START_BAR}, and use them as switches from the
+real start-symbol:
+
+@example
+%token START_FOO START_BAR;
+%start start;
+start: START_FOO foo
+ | START_BAR bar;
+@end example
+
+These tokens prevents the introduction of new conflicts. As far as the
+parser goes, that is all that is needed.
+
+Now the difficult part is ensuring that the scanner will send these
+tokens first. If your scanner is hand-written, that should be
+straightforward. If your scanner is generated by Lex, them there is
+simple means to do it: recall that anything between @samp{%@{ ... %@}}
+after the first @code{%%} is copied verbatim in the top of the generated
+@code{yylex} function. Make sure a variable @code{start_token} is
+available in the scanner (e.g., a global variable or using
+@code{%lex-param} etc.), and use the following:
+
+@example
+ /* @r{Prologue.} */
+%%
+%@{
+ if (start_token)
+ @{
+ int t = start_token;
+ start_token = 0;
+ return t;
+ @}
+%@}
+ /* @r{The rules.} */
+@end example
+
+
+@node Secure? Conform?
+@section Secure? Conform?
+
+@display
+Is Bison secure? Does it conform to POSIX?
+@end display
+
+If you're looking for a guarantee or certification, we don't provide it.
+However, Bison is intended to be a reliable program that conforms to the
+@acronym{POSIX} specification for Yacc. If you run into problems,
+please send us a bug report.
+
+@node I can't build Bison
+@section I can't build Bison
+
+@display
+I can't build Bison because @command{make} complains that
+@code{msgfmt} is not found.
+What should I do?
+@end display
+
+Like most GNU packages with internationalization support, that feature
+is turned on by default. If you have problems building in the @file{po}
+subdirectory, it indicates that your system's internationalization
+support is lacking. You can re-configure Bison with
+@option{--disable-nls} to turn off this support, or you can install GNU
+gettext from @url{ftp://ftp.gnu.org/gnu/gettext/} and re-configure
+Bison. See the file @file{ABOUT-NLS} for more information.
+
+
+@node Where can I find help?
+@section Where can I find help?
+
+@display
+I'm having trouble using Bison. Where can I find help?
+@end display
+
+First, read this fine manual. Beyond that, you can send mail to
+@email{help-bison@@gnu.org}. This mailing list is intended to be
+populated with people who are willing to answer questions about using
+and installing Bison. Please keep in mind that (most of) the people on
+the list have aspects of their lives which are not related to Bison (!),
+so you may not receive an answer to your question right away. This can
+be frustrating, but please try not to honk them off; remember that any
+help they provide is purely voluntary and out of the kindness of their
+hearts.
+
+@node Bug Reports
+@section Bug Reports
+
+@display
+I found a bug. What should I include in the bug report?
+@end display
+
+Before you send a bug report, make sure you are using the latest
+version. Check @url{ftp://ftp.gnu.org/pub/gnu/bison/} or one of its
+mirrors. Be sure to include the version number in your bug report. If
+the bug is present in the latest version but not in a previous version,
+try to determine the most recent version which did not contain the bug.
+
+If the bug is parser-related, you should include the smallest grammar
+you can which demonstrates the bug. The grammar file should also be
+complete (i.e., I should be able to run it through Bison without having
+to edit or add anything). The smaller and simpler the grammar, the
+easier it will be to fix the bug.
+
+Include information about your compilation environment, including your
+operating system's name and version and your compiler's name and
+version. If you have trouble compiling, you should also include a
+transcript of the build session, starting with the invocation of
+`configure'. Depending on the nature of the bug, you may be asked to
+send additional files as well (such as `config.h' or `config.cache').
+
+Patches are most welcome, but not required. That is, do not hesitate to
+send a bug report just because you can not provide a fix.
+
+Send bug reports to @email{bug-bison@@gnu.org}.
+
+@node Other Languages
+@section Other Languages
+
+@display
+Will Bison ever have C++ support? How about Java or @var{insert your
+favorite language here}?
+@end display
+
+C++ support is there now, and is documented. We'd love to add other
+languages; contributions are welcome.
+
+@node Beta Testing
+@section Beta Testing
+
+@display
+What is involved in being a beta tester?
+@end display
+
+It's not terribly involved. Basically, you would download a test
+release, compile it, and use it to build and run a parser or two. After
+that, you would submit either a bug report or a message saying that
+everything is okay. It is important to report successes as well as
+failures because test releases eventually become mainstream releases,
+but only if they are adequately tested. If no one tests, development is
+essentially halted.
+
+Beta testers are particularly needed for operating systems to which the
+developers do not have easy access. They currently have easy access to
+recent GNU/Linux and Solaris versions. Reports about other operating
+systems are especially welcome.
+
+@node Mailing Lists
+@section Mailing Lists
+
+@display
+How do I join the help-bison and bug-bison mailing lists?
+@end display
+
+See @url{http://lists.gnu.org/}.
+
+@c ================================================= Table of Symbols
+
+@node Table of Symbols
+@appendix Bison Symbols
+@cindex Bison symbols, table of
+@cindex symbols in Bison, table of
+
+@deffn {Variable} @@$
+In an action, the location of the left-hand side of the rule.
+@xref{Locations, , Locations Overview}.
+@end deffn
+
+@deffn {Variable} @@@var{n}
+In an action, the location of the @var{n}-th symbol of the right-hand
+side of the rule. @xref{Locations, , Locations Overview}.
+@end deffn
+
+@deffn {Variable} $$
+In an action, the semantic value of the left-hand side of the rule.
+@xref{Actions}.
+@end deffn
+
+@deffn {Variable} $@var{n}
+In an action, the semantic value of the @var{n}-th symbol of the
+right-hand side of the rule. @xref{Actions}.
+@end deffn
+
+@deffn {Delimiter} %%
+Delimiter used to separate the grammar rule section from the
+Bison declarations section or the epilogue.
+@xref{Grammar Layout, ,The Overall Layout of a Bison Grammar}.
+@end deffn
+
+@c Don't insert spaces, or check the DVI output.
+@deffn {Delimiter} %@{@var{code}%@}
+All code listed between @samp{%@{} and @samp{%@}} is copied directly to
+the output file uninterpreted. Such code forms the prologue of the input
+file. @xref{Grammar Outline, ,Outline of a Bison
+Grammar}.
+@end deffn
+
+@deffn {Construct} /*@dots{}*/
+Comment delimiters, as in C.
+@end deffn
+
+@deffn {Delimiter} :
+Separates a rule's result from its components. @xref{Rules, ,Syntax of
+Grammar Rules}.
+@end deffn
+
+@deffn {Delimiter} ;
+Terminates a rule. @xref{Rules, ,Syntax of Grammar Rules}.
+@end deffn
+
+@deffn {Delimiter} |
+Separates alternate rules for the same result nonterminal.
+@xref{Rules, ,Syntax of Grammar Rules}.
+@end deffn
+
+@deffn {Symbol} $accept
+The predefined nonterminal whose only rule is @samp{$accept: @var{start}
+$end}, where @var{start} is the start symbol. @xref{Start Decl, , The
+Start-Symbol}. It cannot be used in the grammar.
+@end deffn
+
+@deffn {Directive} %debug
+Equip the parser for debugging. @xref{Decl Summary}.
+@end deffn
+
+@ifset defaultprec
+@deffn {Directive} %default-prec
+Assign a precedence to rules that lack an explicit @samp{%prec}
+modifier. @xref{Contextual Precedence, ,Context-Dependent
+Precedence}.
+@end deffn
+@end ifset
+
+@deffn {Directive} %defines
+Bison declaration to create a header file meant for the scanner.
+@xref{Decl Summary}.
+@end deffn
+
+@deffn {Directive} %destructor
+Specify how the parser should reclaim the memory associated to
+discarded symbols. @xref{Destructor Decl, , Freeing Discarded Symbols}.
+@end deffn
+
+@deffn {Directive} %dprec
+Bison declaration to assign a precedence to a rule that is used at parse
+time to resolve reduce/reduce conflicts. @xref{GLR Parsers, ,Writing
+@acronym{GLR} Parsers}.
+@end deffn
+
+@deffn {Symbol} $end
+The predefined token marking the end of the token stream. It cannot be
+used in the grammar.
+@end deffn
+
+@deffn {Symbol} error
+A token name reserved for error recovery. This token may be used in
+grammar rules so as to allow the Bison parser to recognize an error in
+the grammar without halting the process. In effect, a sentence
+containing an error may be recognized as valid. On a syntax error, the
+token @code{error} becomes the current look-ahead token. Actions
+corresponding to @code{error} are then executed, and the look-ahead
+token is reset to the token that originally caused the violation.
+@xref{Error Recovery}.
+@end deffn
+
+@deffn {Directive} %error-verbose
+Bison declaration to request verbose, specific error message strings
+when @code{yyerror} is called.
+@end deffn
+
+@deffn {Directive} %file-prefix="@var{prefix}"
+Bison declaration to set the prefix of the output files. @xref{Decl
+Summary}.
+@end deffn
+
+@deffn {Directive} %glr-parser
+Bison declaration to produce a @acronym{GLR} parser. @xref{GLR
+Parsers, ,Writing @acronym{GLR} Parsers}.
+@end deffn
+
+@deffn {Directive} %initial-action
+Run user code before parsing. @xref{Initial Action Decl, , Performing Actions before Parsing}.
+@end deffn
+
+@deffn {Directive} %left
+Bison declaration to assign left associativity to token(s).
+@xref{Precedence Decl, ,Operator Precedence}.
+@end deffn
+
+@deffn {Directive} %lex-param @{@var{argument-declaration}@}
+Bison declaration to specifying an additional parameter that
+@code{yylex} should accept. @xref{Pure Calling,, Calling Conventions
+for Pure Parsers}.
+@end deffn
+
+@deffn {Directive} %merge
+Bison declaration to assign a merging function to a rule. If there is a
+reduce/reduce conflict with a rule having the same merging function, the
+function is applied to the two semantic values to get a single result.
+@xref{GLR Parsers, ,Writing @acronym{GLR} Parsers}.
+@end deffn
+
+@deffn {Directive} %name-prefix="@var{prefix}"
+Bison declaration to rename the external symbols. @xref{Decl Summary}.
+@end deffn
+
+@ifset defaultprec
+@deffn {Directive} %no-default-prec
+Do not assign a precedence to rules that lack an explicit @samp{%prec}
+modifier. @xref{Contextual Precedence, ,Context-Dependent
+Precedence}.
+@end deffn
+@end ifset
+
+@deffn {Directive} %no-lines
+Bison declaration to avoid generating @code{#line} directives in the
+parser file. @xref{Decl Summary}.
+@end deffn
+
+@deffn {Directive} %nonassoc
+Bison declaration to assign nonassociativity to token(s).
+@xref{Precedence Decl, ,Operator Precedence}.
+@end deffn
+
+@deffn {Directive} %output="@var{file}"
+Bison declaration to set the name of the parser file. @xref{Decl
+Summary}.
+@end deffn
+
+@deffn {Directive} %parse-param @{@var{argument-declaration}@}
+Bison declaration to specifying an additional parameter that
+@code{yyparse} should accept. @xref{Parser Function,, The Parser
+Function @code{yyparse}}.
+@end deffn
+
+@deffn {Directive} %prec
+Bison declaration to assign a precedence to a specific rule.
+@xref{Contextual Precedence, ,Context-Dependent Precedence}.
+@end deffn
+
+@deffn {Directive} %pure-parser
+Bison declaration to request a pure (reentrant) parser.
+@xref{Pure Decl, ,A Pure (Reentrant) Parser}.
+@end deffn
+
+@deffn {Directive} %require "@var{version}"
+Require version @var{version} or higher of Bison. @xref{Require Decl, ,
+Require a Version of Bison}.
+@end deffn
+
+@deffn {Directive} %right
+Bison declaration to assign right associativity to token(s).
+@xref{Precedence Decl, ,Operator Precedence}.
+@end deffn
+
+@deffn {Directive} %start
+Bison declaration to specify the start symbol. @xref{Start Decl, ,The
+Start-Symbol}.
+@end deffn
+
+@deffn {Directive} %token
+Bison declaration to declare token(s) without specifying precedence.
+@xref{Token Decl, ,Token Type Names}.
+@end deffn
+
+@deffn {Directive} %token-table
+Bison declaration to include a token name table in the parser file.
+@xref{Decl Summary}.
+@end deffn
+
+@deffn {Directive} %type
+Bison declaration to declare nonterminals. @xref{Type Decl,
+,Nonterminal Symbols}.
+@end deffn
+
+@deffn {Symbol} $undefined
+The predefined token onto which all undefined values returned by
+@code{yylex} are mapped. It cannot be used in the grammar, rather, use
+@code{error}.
+@end deffn
+
+@deffn {Directive} %union
+Bison declaration to specify several possible data types for semantic
+values. @xref{Union Decl, ,The Collection of Value Types}.
+@end deffn
+
+@deffn {Macro} YYABORT
+Macro to pretend that an unrecoverable syntax error has occurred, by
+making @code{yyparse} return 1 immediately. The error reporting
+function @code{yyerror} is not called. @xref{Parser Function, ,The
+Parser Function @code{yyparse}}.
+@end deffn
+
+@deffn {Macro} YYACCEPT
+Macro to pretend that a complete utterance of the language has been
+read, by making @code{yyparse} return 0 immediately.
+@xref{Parser Function, ,The Parser Function @code{yyparse}}.
+@end deffn
+
+@deffn {Macro} YYBACKUP
+Macro to discard a value from the parser stack and fake a look-ahead
+token. @xref{Action Features, ,Special Features for Use in Actions}.
+@end deffn
+
+@deffn {Variable} yychar
+External integer variable that contains the integer value of the
+look-ahead token. (In a pure parser, it is a local variable within
+@code{yyparse}.) Error-recovery rule actions may examine this variable.
+@xref{Action Features, ,Special Features for Use in Actions}.
+@end deffn
+
+@deffn {Variable} yyclearin
+Macro used in error-recovery rule actions. It clears the previous
+look-ahead token. @xref{Error Recovery}.
+@end deffn
+
+@deffn {Macro} YYDEBUG
+Macro to define to equip the parser with tracing code. @xref{Tracing,
+,Tracing Your Parser}.
+@end deffn
+
+@deffn {Variable} yydebug
+External integer variable set to zero by default. If @code{yydebug}
+is given a nonzero value, the parser will output information on input
+symbols and parser action. @xref{Tracing, ,Tracing Your Parser}.
+@end deffn
+
+@deffn {Macro} yyerrok
+Macro to cause parser to recover immediately to its normal mode
+after a syntax error. @xref{Error Recovery}.
+@end deffn
+
+@deffn {Macro} YYERROR
+Macro to pretend that a syntax error has just been detected: call
+@code{yyerror} and then perform normal error recovery if possible
+(@pxref{Error Recovery}), or (if recovery is impossible) make
+@code{yyparse} return 1. @xref{Error Recovery}.
+@end deffn
+
+@deffn {Function} yyerror
+User-supplied function to be called by @code{yyparse} on error.
+@xref{Error Reporting, ,The Error
+Reporting Function @code{yyerror}}.
+@end deffn
+
+@deffn {Macro} YYERROR_VERBOSE
+An obsolete macro that you define with @code{#define} in the prologue
+to request verbose, specific error message strings
+when @code{yyerror} is called. It doesn't matter what definition you
+use for @code{YYERROR_VERBOSE}, just whether you define it. Using
+@code{%error-verbose} is preferred.
+@end deffn
+
+@deffn {Macro} YYINITDEPTH
+Macro for specifying the initial size of the parser stack.
+@xref{Memory Management}.
+@end deffn
+
+@deffn {Function} yylex
+User-supplied lexical analyzer function, called with no arguments to get
+the next token. @xref{Lexical, ,The Lexical Analyzer Function
+@code{yylex}}.
+@end deffn
+
+@deffn {Macro} YYLEX_PARAM
+An obsolete macro for specifying an extra argument (or list of extra
+arguments) for @code{yyparse} to pass to @code{yylex}. The use of this
+macro is deprecated, and is supported only for Yacc like parsers.
+@xref{Pure Calling,, Calling Conventions for Pure Parsers}.
+@end deffn
+
+@deffn {Variable} yylloc
+External variable in which @code{yylex} should place the line and column
+numbers associated with a token. (In a pure parser, it is a local
+variable within @code{yyparse}, and its address is passed to
+@code{yylex}.)
+You can ignore this variable if you don't use the @samp{@@} feature in the
+grammar actions.
+@xref{Token Locations, ,Textual Locations of Tokens}.
+In semantic actions, it stores the location of the look-ahead token.
+@xref{Actions and Locations, ,Actions and Locations}.
+@end deffn
+
+@deffn {Type} YYLTYPE
+Data type of @code{yylloc}; by default, a structure with four
+members. @xref{Location Type, , Data Types of Locations}.
+@end deffn
+
+@deffn {Variable} yylval
+External variable in which @code{yylex} should place the semantic
+value associated with a token. (In a pure parser, it is a local
+variable within @code{yyparse}, and its address is passed to
+@code{yylex}.)
+@xref{Token Values, ,Semantic Values of Tokens}.
+In semantic actions, it stores the semantic value of the look-ahead token.
+@xref{Actions, ,Actions}.
+@end deffn
+
+@deffn {Macro} YYMAXDEPTH
+Macro for specifying the maximum size of the parser stack. @xref{Memory
+Management}.
+@end deffn
+
+@deffn {Variable} yynerrs
+Global variable which Bison increments each time it reports a syntax error.
+(In a pure parser, it is a local variable within @code{yyparse}.)
+@xref{Error Reporting, ,The Error Reporting Function @code{yyerror}}.
+@end deffn
+
+@deffn {Function} yyparse
+The parser function produced by Bison; call this function to start
+parsing. @xref{Parser Function, ,The Parser Function @code{yyparse}}.
+@end deffn
+
+@deffn {Macro} YYPARSE_PARAM
+An obsolete macro for specifying the name of a parameter that
+@code{yyparse} should accept. The use of this macro is deprecated, and
+is supported only for Yacc like parsers. @xref{Pure Calling,, Calling
+Conventions for Pure Parsers}.
+@end deffn
+
+@deffn {Macro} YYRECOVERING
+The expression @code{YYRECOVERING ()} yields 1 when the parser
+is recovering from a syntax error, and 0 otherwise.
+@xref{Action Features, ,Special Features for Use in Actions}.
+@end deffn
+
+@deffn {Macro} YYSTACK_USE_ALLOCA
+Macro used to control the use of @code{alloca} when the C
+@acronym{LALR}(1) parser needs to extend its stacks. If defined to 0,
+the parser will use @code{malloc} to extend its stacks. If defined to
+1, the parser will use @code{alloca}. Values other than 0 and 1 are
+reserved for future Bison extensions. If not defined,
+@code{YYSTACK_USE_ALLOCA} defaults to 0.
+
+In the all-too-common case where your code may run on a host with a
+limited stack and with unreliable stack-overflow checking, you should
+set @code{YYMAXDEPTH} to a value that cannot possibly result in
+unchecked stack overflow on any of your target hosts when
+@code{alloca} is called. You can inspect the code that Bison
+generates in order to determine the proper numeric values. This will
+require some expertise in low-level implementation details.
+@end deffn
+
+@deffn {Type} YYSTYPE
+Data type of semantic values; @code{int} by default.
+@xref{Value Type, ,Data Types of Semantic Values}.
+@end deffn
+
+@node Glossary
+@appendix Glossary
+@cindex glossary
+
+@table @asis
+@item Backus-Naur Form (@acronym{BNF}; also called ``Backus Normal Form'')
+Formal method of specifying context-free grammars originally proposed
+by John Backus, and slightly improved by Peter Naur in his 1960-01-02
+committee document contributing to what became the Algol 60 report.
+@xref{Language and Grammar, ,Languages and Context-Free Grammars}.
+
+@item Context-free grammars
+Grammars specified as rules that can be applied regardless of context.
+Thus, if there is a rule which says that an integer can be used as an
+expression, integers are allowed @emph{anywhere} an expression is
+permitted. @xref{Language and Grammar, ,Languages and Context-Free
+Grammars}.
+
+@item Dynamic allocation
+Allocation of memory that occurs during execution, rather than at
+compile time or on entry to a function.
+
+@item Empty string
+Analogous to the empty set in set theory, the empty string is a
+character string of length zero.
+
+@item Finite-state stack machine
+A ``machine'' that has discrete states in which it is said to exist at
+each instant in time. As input to the machine is processed, the
+machine moves from state to state as specified by the logic of the
+machine. In the case of the parser, the input is the language being
+parsed, and the states correspond to various stages in the grammar
+rules. @xref{Algorithm, ,The Bison Parser Algorithm}.
+
+@item Generalized @acronym{LR} (@acronym{GLR})
+A parsing algorithm that can handle all context-free grammars, including those
+that are not @acronym{LALR}(1). It resolves situations that Bison's
+usual @acronym{LALR}(1)
+algorithm cannot by effectively splitting off multiple parsers, trying all
+possible parsers, and discarding those that fail in the light of additional
+right context. @xref{Generalized LR Parsing, ,Generalized
+@acronym{LR} Parsing}.
+
+@item Grouping
+A language construct that is (in general) grammatically divisible;
+for example, `expression' or `declaration' in C@.
+@xref{Language and Grammar, ,Languages and Context-Free Grammars}.
+
+@item Infix operator
+An arithmetic operator that is placed between the operands on which it
+performs some operation.
+
+@item Input stream
+A continuous flow of data between devices or programs.
+
+@item Language construct
+One of the typical usage schemas of the language. For example, one of
+the constructs of the C language is the @code{if} statement.
+@xref{Language and Grammar, ,Languages and Context-Free Grammars}.
+
+@item Left associativity
+Operators having left associativity are analyzed from left to right:
+@samp{a+b+c} first computes @samp{a+b} and then combines with
+@samp{c}. @xref{Precedence, ,Operator Precedence}.
+
+@item Left recursion
+A rule whose result symbol is also its first component symbol; for
+example, @samp{expseq1 : expseq1 ',' exp;}. @xref{Recursion, ,Recursive
+Rules}.
+
+@item Left-to-right parsing
+Parsing a sentence of a language by analyzing it token by token from
+left to right. @xref{Algorithm, ,The Bison Parser Algorithm}.
+
+@item Lexical analyzer (scanner)
+A function that reads an input stream and returns tokens one by one.
+@xref{Lexical, ,The Lexical Analyzer Function @code{yylex}}.
+
+@item Lexical tie-in
+A flag, set by actions in the grammar rules, which alters the way
+tokens are parsed. @xref{Lexical Tie-ins}.
+
+@item Literal string token
+A token which consists of two or more fixed characters. @xref{Symbols}.
+
+@item Look-ahead token
+A token already read but not yet shifted. @xref{Look-Ahead, ,Look-Ahead
+Tokens}.
+
+@item @acronym{LALR}(1)
+The class of context-free grammars that Bison (like most other parser
+generators) can handle; a subset of @acronym{LR}(1). @xref{Mystery
+Conflicts, ,Mysterious Reduce/Reduce Conflicts}.
+
+@item @acronym{LR}(1)
+The class of context-free grammars in which at most one token of
+look-ahead is needed to disambiguate the parsing of any piece of input.
+
+@item Nonterminal symbol
+A grammar symbol standing for a grammatical construct that can
+be expressed through rules in terms of smaller constructs; in other
+words, a construct that is not a token. @xref{Symbols}.
+
+@item Parser
+A function that recognizes valid sentences of a language by analyzing
+the syntax structure of a set of tokens passed to it from a lexical
+analyzer.
+
+@item Postfix operator
+An arithmetic operator that is placed after the operands upon which it
+performs some operation.
+
+@item Reduction
+Replacing a string of nonterminals and/or terminals with a single
+nonterminal, according to a grammar rule. @xref{Algorithm, ,The Bison
+Parser Algorithm}.
+
+@item Reentrant
+A reentrant subprogram is a subprogram which can be in invoked any
+number of times in parallel, without interference between the various
+invocations. @xref{Pure Decl, ,A Pure (Reentrant) Parser}.
+
+@item Reverse polish notation
+A language in which all operators are postfix operators.
+
+@item Right recursion
+A rule whose result symbol is also its last component symbol; for
+example, @samp{expseq1: exp ',' expseq1;}. @xref{Recursion, ,Recursive
+Rules}.
+
+@item Semantics
+In computer languages, the semantics are specified by the actions
+taken for each instance of the language, i.e., the meaning of
+each statement. @xref{Semantics, ,Defining Language Semantics}.
+
+@item Shift
+A parser is said to shift when it makes the choice of analyzing
+further input from the stream rather than reducing immediately some
+already-recognized rule. @xref{Algorithm, ,The Bison Parser Algorithm}.
+
+@item Single-character literal
+A single character that is recognized and interpreted as is.
+@xref{Grammar in Bison, ,From Formal Rules to Bison Input}.
+
+@item Start symbol
+The nonterminal symbol that stands for a complete valid utterance in
+the language being parsed. The start symbol is usually listed as the
+first nonterminal symbol in a language specification.
+@xref{Start Decl, ,The Start-Symbol}.
+
+@item Symbol table
+A data structure where symbol names and associated data are stored
+during parsing to allow for recognition and use of existing
+information in repeated uses of a symbol. @xref{Multi-function Calc}.
+
+@item Syntax error
+An error encountered during parsing of an input stream due to invalid
+syntax. @xref{Error Recovery}.
+
+@item Token
+A basic, grammatically indivisible unit of a language. The symbol
+that describes a token in the grammar is a terminal symbol.
+The input of the Bison parser is a stream of tokens which comes from
+the lexical analyzer. @xref{Symbols}.
+
+@item Terminal symbol
+A grammar symbol that has no rules in the grammar and therefore is
+grammatically indivisible. The piece of text it represents is a token.
+@xref{Language and Grammar, ,Languages and Context-Free Grammars}.
+@end table
+
+@node Copying This Manual
+@appendix Copying This Manual
+
+@menu
+* GNU Free Documentation License:: License for copying this manual.
+@end menu
+
+@include fdl.texi
+
+@node Index
+@unnumbered Index
+
+@printindex cp
+
+@bye
+
+@c LocalWords: texinfo setfilename settitle setchapternewpage finalout
+@c LocalWords: ifinfo smallbook shorttitlepage titlepage GPL FIXME iftex
+@c LocalWords: akim fn cp syncodeindex vr tp synindex dircategory direntry
+@c LocalWords: ifset vskip pt filll insertcopying sp ISBN Etienne Suvasa
+@c LocalWords: ifnottex yyparse detailmenu GLR RPN Calc var Decls Rpcalc
+@c LocalWords: rpcalc Lexer Gen Comp Expr ltcalc mfcalc Decl Symtab yylex
+@c LocalWords: yyerror pxref LR yylval cindex dfn LALR samp gpl BNF xref
+@c LocalWords: const int paren ifnotinfo AC noindent emph expr stmt findex
+@c LocalWords: glr YYSTYPE TYPENAME prog dprec printf decl init stmtMerge
+@c LocalWords: pre STDC GNUC endif yy YY alloca lf stddef stdlib YYDEBUG
+@c LocalWords: NUM exp subsubsection kbd Ctrl ctype EOF getchar isdigit
+@c LocalWords: ungetc stdin scanf sc calc ulator ls lm cc NEG prec yyerrok
+@c LocalWords: longjmp fprintf stderr preg yylloc YYLTYPE cos ln
+@c LocalWords: smallexample symrec val tptr FNCT fnctptr func struct sym
+@c LocalWords: fnct putsym getsym fname arith fncts atan ptr malloc sizeof
+@c LocalWords: strlen strcpy fctn strcmp isalpha symbuf realloc isalnum
+@c LocalWords: ptypes itype YYPRINT trigraphs yytname expseq vindex dtype
+@c LocalWords: Rhs YYRHSLOC LE nonassoc op deffn typeless typefull yynerrs
+@c LocalWords: yychar yydebug msg YYNTOKENS YYNNTS YYNRULES YYNSTATES
+@c LocalWords: cparse clex deftypefun NE defmac YYACCEPT YYABORT param
+@c LocalWords: strncmp intval tindex lvalp locp llocp typealt YYBACKUP
+@c LocalWords: YYEMPTY YYEOF YYRECOVERING yyclearin GE def UMINUS maybeword
+@c LocalWords: Johnstone Shamsa Sadaf Hussain Tomita TR uref YYMAXDEPTH
+@c LocalWords: YYINITDEPTH stmnts ref stmnt initdcl maybeasm VCG notype
+@c LocalWords: hexflag STR exdent itemset asis DYYDEBUG YYFPRINTF args
+@c LocalWords: YYPRINTF infile ypp yxx outfile itemx vcg tex leaderfill
+@c LocalWords: hbox hss hfill tt ly yyin fopen fclose ofirst gcc ll
+@c LocalWords: yyrestart nbar yytext fst snd osplit ntwo strdup AST
+@c LocalWords: YYSTACK DVI fdl printindex
diff --git a/doc/fdl.texi b/doc/fdl.texi
new file mode 100644
index 0000000..fe78df8
--- /dev/null
+++ b/doc/fdl.texi
@@ -0,0 +1,452 @@
+
+@node GNU Free Documentation License
+@appendixsec GNU Free Documentation License
+
+@cindex FDL, GNU Free Documentation License
+@center Version 1.2, November 2002
+
+@display
+Copyright @copyright{} 2000,2001,2002 Free Software Foundation, Inc.
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+@end display
+
+@enumerate 0
+@item
+PREAMBLE
+
+The purpose of this License is to make a manual, textbook, or other
+functional and useful document @dfn{free} in the sense of freedom: to
+assure everyone the effective freedom to copy and redistribute it,
+with or without modifying it, either commercially or noncommercially.
+Secondarily, this License preserves for the author and publisher a way
+to get credit for their work, while not being considered responsible
+for modifications made by others.
+
+This License is a kind of ``copyleft'', which means that derivative
+works of the document must themselves be free in the same sense. It
+complements the GNU General Public License, which is a copyleft
+license designed for free software.
+
+We have designed this License in order to use it for manuals for free
+software, because free software needs free documentation: a free
+program should come with manuals providing the same freedoms that the
+software does. But this License is not limited to software manuals;
+it can be used for any textual work, regardless of subject matter or
+whether it is published as a printed book. We recommend this License
+principally for works whose purpose is instruction or reference.
+
+@item
+APPLICABILITY AND DEFINITIONS
+
+This License applies to any manual or other work, in any medium, that
+contains a notice placed by the copyright holder saying it can be
+distributed under the terms of this License. Such a notice grants a
+world-wide, royalty-free license, unlimited in duration, to use that
+work under the conditions stated herein. The ``Document'', below,
+refers to any such manual or work. Any member of the public is a
+licensee, and is addressed as ``you''. You accept the license if you
+copy, modify or distribute the work in a way requiring permission
+under copyright law.
+
+A ``Modified Version'' of the Document means any work containing the
+Document or a portion of it, either copied verbatim, or with
+modifications and/or translated into another language.
+
+A ``Secondary Section'' is a named appendix or a front-matter section
+of the Document that deals exclusively with the relationship of the
+publishers or authors of the Document to the Document's overall
+subject (or to related matters) and contains nothing that could fall
+directly within that overall subject. (Thus, if the Document is in
+part a textbook of mathematics, a Secondary Section may not explain
+any mathematics.) The relationship could be a matter of historical
+connection with the subject or with related matters, or of legal,
+commercial, philosophical, ethical or political position regarding
+them.
+
+The ``Invariant Sections'' are certain Secondary Sections whose titles
+are designated, as being those of Invariant Sections, in the notice
+that says that the Document is released under this License. If a
+section does not fit the above definition of Secondary then it is not
+allowed to be designated as Invariant. The Document may contain zero
+Invariant Sections. If the Document does not identify any Invariant
+Sections then there are none.
+
+The ``Cover Texts'' are certain short passages of text that are listed,
+as Front-Cover Texts or Back-Cover Texts, in the notice that says that
+the Document is released under this License. A Front-Cover Text may
+be at most 5 words, and a Back-Cover Text may be at most 25 words.
+
+A ``Transparent'' copy of the Document means a machine-readable copy,
+represented in a format whose specification is available to the
+general public, that is suitable for revising the document
+straightforwardly with generic text editors or (for images composed of
+pixels) generic paint programs or (for drawings) some widely available
+drawing editor, and that is suitable for input to text formatters or
+for automatic translation to a variety of formats suitable for input
+to text formatters. A copy made in an otherwise Transparent file
+format whose markup, or absence of markup, has been arranged to thwart
+or discourage subsequent modification by readers is not Transparent.
+An image format is not Transparent if used for any substantial amount
+of text. A copy that is not ``Transparent'' is called ``Opaque''.
+
+Examples of suitable formats for Transparent copies include plain
+@sc{ascii} without markup, Texinfo input format, La@TeX{} input
+format, @acronym{SGML} or @acronym{XML} using a publicly available
+@acronym{DTD}, and standard-conforming simple @acronym{HTML},
+PostScript or @acronym{PDF} designed for human modification. Examples
+of transparent image formats include @acronym{PNG}, @acronym{XCF} and
+@acronym{JPG}. Opaque formats include proprietary formats that can be
+read and edited only by proprietary word processors, @acronym{SGML} or
+@acronym{XML} for which the @acronym{DTD} and/or processing tools are
+not generally available, and the machine-generated @acronym{HTML},
+PostScript or @acronym{PDF} produced by some word processors for
+output purposes only.
+
+The ``Title Page'' means, for a printed book, the title page itself,
+plus such following pages as are needed to hold, legibly, the material
+this License requires to appear in the title page. For works in
+formats which do not have any title page as such, ``Title Page'' means
+the text near the most prominent appearance of the work's title,
+preceding the beginning of the body of the text.
+
+A section ``Entitled XYZ'' means a named subunit of the Document whose
+title either is precisely XYZ or contains XYZ in parentheses following
+text that translates XYZ in another language. (Here XYZ stands for a
+specific section name mentioned below, such as ``Acknowledgements'',
+``Dedications'', ``Endorsements'', or ``History''.) To ``Preserve the Title''
+of such a section when you modify the Document means that it remains a
+section ``Entitled XYZ'' according to this definition.
+
+The Document may include Warranty Disclaimers next to the notice which
+states that this License applies to the Document. These Warranty
+Disclaimers are considered to be included by reference in this
+License, but only as regards disclaiming warranties: any other
+implication that these Warranty Disclaimers may have is void and has
+no effect on the meaning of this License.
+
+@item
+VERBATIM COPYING
+
+You may copy and distribute the Document in any medium, either
+commercially or noncommercially, provided that this License, the
+copyright notices, and the license notice saying this License applies
+to the Document are reproduced in all copies, and that you add no other
+conditions whatsoever to those of this License. You may not use
+technical measures to obstruct or control the reading or further
+copying of the copies you make or distribute. However, you may accept
+compensation in exchange for copies. If you distribute a large enough
+number of copies you must also follow the conditions in section 3.
+
+You may also lend copies, under the same conditions stated above, and
+you may publicly display copies.
+
+@item
+COPYING IN QUANTITY
+
+If you publish printed copies (or copies in media that commonly have
+printed covers) of the Document, numbering more than 100, and the
+Document's license notice requires Cover Texts, you must enclose the
+copies in covers that carry, clearly and legibly, all these Cover
+Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
+the back cover. Both covers must also clearly and legibly identify
+you as the publisher of these copies. The front cover must present
+the full title with all words of the title equally prominent and
+visible. You may add other material on the covers in addition.
+Copying with changes limited to the covers, as long as they preserve
+the title of the Document and satisfy these conditions, can be treated
+as verbatim copying in other respects.
+
+If the required texts for either cover are too voluminous to fit
+legibly, you should put the first ones listed (as many as fit
+reasonably) on the actual cover, and continue the rest onto adjacent
+pages.
+
+If you publish or distribute Opaque copies of the Document numbering
+more than 100, you must either include a machine-readable Transparent
+copy along with each Opaque copy, or state in or with each Opaque copy
+a computer-network location from which the general network-using
+public has access to download using public-standard network protocols
+a complete Transparent copy of the Document, free of added material.
+If you use the latter option, you must take reasonably prudent steps,
+when you begin distribution of Opaque copies in quantity, to ensure
+that this Transparent copy will remain thus accessible at the stated
+location until at least one year after the last time you distribute an
+Opaque copy (directly or through your agents or retailers) of that
+edition to the public.
+
+It is requested, but not required, that you contact the authors of the
+Document well before redistributing any large number of copies, to give
+them a chance to provide you with an updated version of the Document.
+
+@item
+MODIFICATIONS
+
+You may copy and distribute a Modified Version of the Document under
+the conditions of sections 2 and 3 above, provided that you release
+the Modified Version under precisely this License, with the Modified
+Version filling the role of the Document, thus licensing distribution
+and modification of the Modified Version to whoever possesses a copy
+of it. In addition, you must do these things in the Modified Version:
+
+@enumerate A
+@item
+Use in the Title Page (and on the covers, if any) a title distinct
+from that of the Document, and from those of previous versions
+(which should, if there were any, be listed in the History section
+of the Document). You may use the same title as a previous version
+if the original publisher of that version gives permission.
+
+@item
+List on the Title Page, as authors, one or more persons or entities
+responsible for authorship of the modifications in the Modified
+Version, together with at least five of the principal authors of the
+Document (all of its principal authors, if it has fewer than five),
+unless they release you from this requirement.
+
+@item
+State on the Title page the name of the publisher of the
+Modified Version, as the publisher.
+
+@item
+Preserve all the copyright notices of the Document.
+
+@item
+Add an appropriate copyright notice for your modifications
+adjacent to the other copyright notices.
+
+@item
+Include, immediately after the copyright notices, a license notice
+giving the public permission to use the Modified Version under the
+terms of this License, in the form shown in the Addendum below.
+
+@item
+Preserve in that license notice the full lists of Invariant Sections
+and required Cover Texts given in the Document's license notice.
+
+@item
+Include an unaltered copy of this License.
+
+@item
+Preserve the section Entitled ``History'', Preserve its Title, and add
+to it an item stating at least the title, year, new authors, and
+publisher of the Modified Version as given on the Title Page. If
+there is no section Entitled ``History'' in the Document, create one
+stating the title, year, authors, and publisher of the Document as
+given on its Title Page, then add an item describing the Modified
+Version as stated in the previous sentence.
+
+@item
+Preserve the network location, if any, given in the Document for
+public access to a Transparent copy of the Document, and likewise
+the network locations given in the Document for previous versions
+it was based on. These may be placed in the ``History'' section.
+You may omit a network location for a work that was published at
+least four years before the Document itself, or if the original
+publisher of the version it refers to gives permission.
+
+@item
+For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
+the Title of the section, and preserve in the section all the
+substance and tone of each of the contributor acknowledgements and/or
+dedications given therein.
+
+@item
+Preserve all the Invariant Sections of the Document,
+unaltered in their text and in their titles. Section numbers
+or the equivalent are not considered part of the section titles.
+
+@item
+Delete any section Entitled ``Endorsements''. Such a section
+may not be included in the Modified Version.
+
+@item
+Do not retitle any existing section to be Entitled ``Endorsements'' or
+to conflict in title with any Invariant Section.
+
+@item
+Preserve any Warranty Disclaimers.
+@end enumerate
+
+If the Modified Version includes new front-matter sections or
+appendices that qualify as Secondary Sections and contain no material
+copied from the Document, you may at your option designate some or all
+of these sections as invariant. To do this, add their titles to the
+list of Invariant Sections in the Modified Version's license notice.
+These titles must be distinct from any other section titles.
+
+You may add a section Entitled ``Endorsements'', provided it contains
+nothing but endorsements of your Modified Version by various
+parties---for example, statements of peer review or that the text has
+been approved by an organization as the authoritative definition of a
+standard.
+
+You may add a passage of up to five words as a Front-Cover Text, and a
+passage of up to 25 words as a Back-Cover Text, to the end of the list
+of Cover Texts in the Modified Version. Only one passage of
+Front-Cover Text and one of Back-Cover Text may be added by (or
+through arrangements made by) any one entity. If the Document already
+includes a cover text for the same cover, previously added by you or
+by arrangement made by the same entity you are acting on behalf of,
+you may not add another; but you may replace the old one, on explicit
+permission from the previous publisher that added the old one.
+
+The author(s) and publisher(s) of the Document do not by this License
+give permission to use their names for publicity for or to assert or
+imply endorsement of any Modified Version.
+
+@item
+COMBINING DOCUMENTS
+
+You may combine the Document with other documents released under this
+License, under the terms defined in section 4 above for modified
+versions, provided that you include in the combination all of the
+Invariant Sections of all of the original documents, unmodified, and
+list them all as Invariant Sections of your combined work in its
+license notice, and that you preserve all their Warranty Disclaimers.
+
+The combined work need only contain one copy of this License, and
+multiple identical Invariant Sections may be replaced with a single
+copy. If there are multiple Invariant Sections with the same name but
+different contents, make the title of each such section unique by
+adding at the end of it, in parentheses, the name of the original
+author or publisher of that section if known, or else a unique number.
+Make the same adjustment to the section titles in the list of
+Invariant Sections in the license notice of the combined work.
+
+In the combination, you must combine any sections Entitled ``History''
+in the various original documents, forming one section Entitled
+``History''; likewise combine any sections Entitled ``Acknowledgements'',
+and any sections Entitled ``Dedications''. You must delete all
+sections Entitled ``Endorsements.''
+
+@item
+COLLECTIONS OF DOCUMENTS
+
+You may make a collection consisting of the Document and other documents
+released under this License, and replace the individual copies of this
+License in the various documents with a single copy that is included in
+the collection, provided that you follow the rules of this License for
+verbatim copying of each of the documents in all other respects.
+
+You may extract a single document from such a collection, and distribute
+it individually under this License, provided you insert a copy of this
+License into the extracted document, and follow this License in all
+other respects regarding verbatim copying of that document.
+
+@item
+AGGREGATION WITH INDEPENDENT WORKS
+
+A compilation of the Document or its derivatives with other separate
+and independent documents or works, in or on a volume of a storage or
+distribution medium, is called an ``aggregate'' if the copyright
+resulting from the compilation is not used to limit the legal rights
+of the compilation's users beyond what the individual works permit.
+When the Document is included in an aggregate, this License does not
+apply to the other works in the aggregate which are not themselves
+derivative works of the Document.
+
+If the Cover Text requirement of section 3 is applicable to these
+copies of the Document, then if the Document is less than one half of
+the entire aggregate, the Document's Cover Texts may be placed on
+covers that bracket the Document within the aggregate, or the
+electronic equivalent of covers if the Document is in electronic form.
+Otherwise they must appear on printed covers that bracket the whole
+aggregate.
+
+@item
+TRANSLATION
+
+Translation is considered a kind of modification, so you may
+distribute translations of the Document under the terms of section 4.
+Replacing Invariant Sections with translations requires special
+permission from their copyright holders, but you may include
+translations of some or all Invariant Sections in addition to the
+original versions of these Invariant Sections. You may include a
+translation of this License, and all the license notices in the
+Document, and any Warranty Disclaimers, provided that you also include
+the original English version of this License and the original versions
+of those notices and disclaimers. In case of a disagreement between
+the translation and the original version of this License or a notice
+or disclaimer, the original version will prevail.
+
+If a section in the Document is Entitled ``Acknowledgements'',
+``Dedications'', or ``History'', the requirement (section 4) to Preserve
+its Title (section 1) will typically require changing the actual
+title.
+
+@item
+TERMINATION
+
+You may not copy, modify, sublicense, or distribute the Document except
+as expressly provided for under this License. Any other attempt to
+copy, modify, sublicense or distribute the Document is void, and will
+automatically terminate your rights under this License. However,
+parties who have received copies, or rights, from you under this
+License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+@item
+FUTURE REVISIONS OF THIS LICENSE
+
+The Free Software Foundation may publish new, revised versions
+of the GNU Free Documentation License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns. See
+@uref{http://www.gnu.org/copyleft/}.
+
+Each version of the License is given a distinguishing version number.
+If the Document specifies that a particular numbered version of this
+License ``or any later version'' applies to it, you have the option of
+following the terms and conditions either of that specified version or
+of any later version that has been published (not as a draft) by the
+Free Software Foundation. If the Document does not specify a version
+number of this License, you may choose any version ever published (not
+as a draft) by the Free Software Foundation.
+@end enumerate
+
+@page
+@appendixsubsec ADDENDUM: How to use this License for your documents
+
+To use this License in a document you have written, include a copy of
+the License in the document and put the following copyright and
+license notices just after the title page:
+
+@smallexample
+@group
+ Copyright (C) @var{year} @var{your name}.
+ Permission is granted to copy, distribute and/or modify this document
+ under the terms of the GNU Free Documentation License, Version 1.2
+ or any later version published by the Free Software Foundation;
+ with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+ Texts. A copy of the license is included in the section entitled ``GNU
+ Free Documentation License''.
+@end group
+@end smallexample
+
+If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
+replace the ``with...Texts.'' line with this:
+
+@smallexample
+@group
+ with the Invariant Sections being @var{list their titles}, with
+ the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
+ being @var{list}.
+@end group
+@end smallexample
+
+If you have Invariant Sections without Cover Texts, or some other
+combination of the three, merge those two alternatives to suit the
+situation.
+
+If your document contains nontrivial examples of program code, we
+recommend releasing these examples in parallel under your choice of
+free software license, such as the GNU General Public License,
+to permit their use in free software.
+
+@c Local Variables:
+@c ispell-local-pdict: "ispell-dict"
+@c End:
+
diff --git a/doc/gpl.texi b/doc/gpl.texi
new file mode 100644
index 0000000..9903fc8
--- /dev/null
+++ b/doc/gpl.texi
@@ -0,0 +1,392 @@
+@node Copying
+@unnumbered GNU GENERAL PUBLIC LICENSE
+@center Version 2, June 1991
+
+@c This file is intended to be included in another file.
+
+@display
+Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+@end display
+
+@unnumberedsec Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software---to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+@iftex
+@unnumberedsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+@end iftex
+@ifinfo
+@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+@end ifinfo
+
+@enumerate 0
+@item
+This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The ``Program'', below,
+refers to any such program or work, and a ``work based on the Program''
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term ``modification''.) Each licensee is addressed as ``you''.
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+@item
+You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+@item
+You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+@enumerate a
+@item
+You must cause the modified files to carry prominent notices
+stating that you changed the files and the date of any change.
+
+@item
+You must cause any work that you distribute or publish, that in
+whole or in part contains or is derived from the Program or any
+part thereof, to be licensed as a whole at no charge to all third
+parties under the terms of this License.
+
+@item
+If the modified program normally reads commands interactively
+when run, you must cause it, when started running for such
+interactive use in the most ordinary way, to print or display an
+announcement including an appropriate copyright notice and a
+notice that there is no warranty (or else, saying that you provide
+a warranty) and that users may redistribute the program under
+these conditions, and telling the user how to view a copy of this
+License. (Exception: if the Program itself is interactive but
+does not normally print such an announcement, your work based on
+the Program is not required to print an announcement.)
+@end enumerate
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+@item
+You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+@enumerate a
+@item
+Accompany it with the complete corresponding machine-readable
+source code, which must be distributed under the terms of Sections
+1 and 2 above on a medium customarily used for software interchange; or,
+
+@item
+Accompany it with a written offer, valid for at least three
+years, to give any third party, for a charge no more than your
+cost of physically performing source distribution, a complete
+machine-readable copy of the corresponding source code, to be
+distributed under the terms of Sections 1 and 2 above on a medium
+customarily used for software interchange; or,
+
+@item
+Accompany it with the information you received as to the offer
+to distribute corresponding source code. (This alternative is
+allowed only for noncommercial distribution and only if you
+received the program in object code or executable form with such
+an offer, in accord with Subsection b above.)
+@end enumerate
+
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable. However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+@item
+You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+@item
+You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+@item
+Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+@item
+If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+@item
+If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+@item
+The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and ``any
+later version'', you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+@item
+If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+@iftex
+@heading NO WARRANTY
+@end iftex
+@ifinfo
+@center NO WARRANTY
+@end ifinfo
+
+@item
+BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM ``AS IS'' WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+@item
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+@end enumerate
+
+@iftex
+@heading END OF TERMS AND CONDITIONS
+@end iftex
+@ifinfo
+@center END OF TERMS AND CONDITIONS
+@end ifinfo
+
+@page
+@unnumberedsec Appendix: How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the ``copyright'' line and a pointer to where the full notice is found.
+
+@smallexample
+@var{one line to give the program's name and a brief idea of what it does.}
+Copyright (C) @var{yyyy} @var{name of author}
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+@end smallexample
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+@smallexample
+Gnomovision version 69, Copyright (C) 19@var{yy} @var{name of author}
+Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+This is free software, and you are welcome to redistribute it
+under certain conditions; type `show c' for details.
+@end smallexample
+
+The hypothetical commands @samp{show w} and @samp{show c} should show
+the appropriate parts of the General Public License. Of course, the
+commands you use may be called something other than @samp{show w} and
+@samp{show c}; they could even be mouse-clicks or menu items---whatever
+suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a ``copyright disclaimer'' for the program, if
+necessary. Here is a sample; alter the names:
+
+@example
+Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+`Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+@var{signature of Ty Coon}, 1 April 1989
+Ty Coon, President of Vice
+@end example
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/doc/refcard.tex b/doc/refcard.tex
new file mode 100644
index 0000000..3f2ec9b
--- /dev/null
+++ b/doc/refcard.tex
@@ -0,0 +1,512 @@
+% Bison Quick Reference
+
+%**start of header
+\newcount\columnsperpage
+
+% This file can be printed with 1 or 2 columns per page (see below).
+% Specify how many you want here. Nothing else needs to be changed
+% unless you are maintaining the documentation.
+% For printing reference cards to use in books, specify one column
+% per page and reduce to 80%.
+% Note that if columnsperpage is set to 2, there will be a few overfull
+% boxes, but they are not serious. Just uncomment \finalout.
+
+\columnsperpage=1
+
+% comment out this line if you want page numbers to appear.
+\nopagenumbers
+
+\def\finalout{\overfullrule=0pt}
+%\finalout
+
+% Copyright (c) 1998, 2001 Free Software Foundation, Inc.
+%
+% This file is part of Bison.
+%
+% Bison is free software; you can redistribute them and/or modify them
+% under the terms of the GNU General Public License as published by the
+% Free Software Foundation; either version 2, or (at your option) any
+% later version.
+%
+% Bison is distributed in the hope that it will be useful, but WITHOUT
+% ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+% FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+% for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with either Flex or Bison; see the file COPYING. If not, write
+% to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+% Boston, MA 02110-1301, USA.
+%
+% This file is intended to be processed by plain TeX (TeX82).
+%
+% The final reference card has two columns:
+% This file can be used to produce it in any of three ways:
+% 1 column per page
+% produces two separate pages, each of which needs to be reduced to 80%.
+% This gives the best resolution.
+% 2 columns per page
+% produces a single page.
+% You will still need to cut and paste.
+% Which mode to use is controlled by setting \columnsperpage above.
+%
+% Authors:
+% Brendan Kehoe
+% UUCP: widener!brendan
+% Internet: brendan@cs.widener.edu
+%
+% Gavin Nicol
+% Internet: nick@nsis.cl.co.jp
+%
+% This refcard format was created by Steve Gildea.
+%
+% Thanks to Paul Rubin, Bob Chassell, Len Tower, and Richard Mlynarik
+% for their many good ideas.
+
+% We only change the following to change the version numbers and
+% such.
+
+\def\bisonversion{1.31} % the bison version
+
+\def\refcardversion{0.5} % reference card version
+\def\month{November} % month
+\def\year{2001} % year
+\def\version{\month\ \year, Bison Refcard Version \refcardversion}
+
+% for copyright notices
+\def\small{\smallfont\textfont2=\smallsy\baselineskip=.8\baselineskip}
+\def\medium{\mediumfont\textfont2=\mediumsy\baselineskip=.8\baselineskip}
+
+\def\copyrightnotice{
+\vskip .15ex plus .25 fill
+\begingroup\medium
+\centerline{Copyright \copyright\ \year\ Free Software Foundation, Inc.}
+\vskip .2\baselineskip
+\centerline{\version}
+\vskip .2\baselineskip
+\centerline{designed by Brendan Kehoe and Gavin Nicol}
+\vskip .2\baselineskip
+\centerline{for Bison \bisonversion}
+
+Permission is granted to make and distribute copies of this card
+provided the copyright notice and this permission notice
+are preserved on all copies.
+\vskip .2\baselineskip
+For information, write to the:
+\vskip .2\baselineskip
+\centerline{Free Software Foundation, Inc.}
+\vskip .2\baselineskip
+\centerline{51 Franklin Street, Fifth Floor}
+\vskip .2\baselineskip
+\centerline{Boston, MA 02110-1301 USA}
+\endgroup}
+
+%%%% smallcopyrightnotice for two column printing on one page.
+\def\smallcopyrightnotice{
+\vskip .15ex plus .25 fill
+\begingroup\small
+\centerline{Copyright \copyright\ \year\ Free Software Foundation, Inc.}
+\vskip .2\baselineskip
+\centerline{\version}
+\vskip .2\baselineskip
+\centerline{designed by Brendan Kehoe and Gavin Nicol}
+\vskip .2\baselineskip
+\centerline{for Bison \bisonversion}
+
+Permission is granted to make and distribute copies of this card
+provided the copyright notice and this permission notice
+are preserved on all copies.
+\vskip .2\baselineskip
+For information, write to the:
+\vskip .2\baselineskip
+\centerline{Free Software Foundation, Inc.}
+\vskip .2\baselineskip
+\centerline{51 Franklin Street, Fifth Floor}
+\vskip .2\baselineskip
+\centerline{Boston, MA 02110-1301 USA}
+\endgroup}
+
+% make \bye not \outer so that the \def\bye in the \else clause below
+% can be scanned without complaint.
+\def\bye{\par\vfill\supereject\end}
+
+\newdimen\intercolumnskip
+\newbox\columna
+\newbox\columnb
+
+\def\ncolumns{\the\columnsperpage}
+
+\message{[\ncolumns\space
+ column\if 1\ncolumns\else s\fi\space per page]}
+
+\def\scaledmag#1{ scaled \magstep #1}
+
+% This multi-way format was designed by Stephen Gildea
+% October 1986.
+\if 1\ncolumns
+ \hsize 4in
+ \vsize 10in
+% We want output .3 inch *from top of paper edge*; i.e. -.7in from TeX default
+ \voffset -.7in % Comment out for xdvi viewing; include for printing.
+ \font\titlefont=\fontname\tenbf \scaledmag3
+ \font\headingfont=\fontname\tenbf \scaledmag2
+ \font\smallfont=cmr6
+ \font\smallsy=cmsy6
+ \font\mediumfont=cmr10
+ \font\mediumsy=cmsy10
+
+
+% two lines below commented out in Yet Another Attempt to eliminate
+% page numbers from the output.
+ \footline{\hss}
+% \footline{\hss\folio}
+ \def\makefootline{\baselineskip10pt\hsize6.5in\line{\the\footline}}
+\else
+ \hsize 3.2in
+ \vsize 7.95in
+ \hoffset -.75in
+ \voffset -.745in
+ \font\titlefont=cmbx10 \scaledmag2
+ \font\headingfont=cmbx10 \scaledmag1
+ \font\smallfont=cmr6
+ \font\smallsy=cmsy6
+ \font\eightrm=cmr8
+ \font\eightbf=cmbx8
+ \font\eightit=cmti8
+ \font\eighttt=cmtt8
+ \font\eightsy=cmsy8
+ \textfont0=\eightrm
+ \textfont2=\eightsy
+ \def\rm{\eightrm}
+ \def\bf{\eightbf}
+ \def\it{\eightit}
+ \def\tt{\eighttt}
+%%%% Reduce skip from .8 to .75 to permit printing on two pages.
+ \normalbaselineskip=.75\normalbaselineskip
+ \normallineskip=.75\normallineskip
+ \normallineskiplimit=.75\normallineskiplimit
+ \normalbaselines\rm %make definitions take effect
+
+ \if 2\ncolumns
+ \let\maxcolumn=b
+ \footline{\hss\rm\folio\hss}
+ \def\makefootline{\vskip 2in \hsize=6.86in\line{\the\footline}}
+ \font\mediumfont=cmr10
+ \font\mediumsy=cmsy10
+
+% Leave 3 column code here in case size increases.
+ \else \if 3\ncolumns
+ \let\maxcolumn=c
+ \nopagenumbers
+ \font\mediumfont=cmr10
+ \font\mediumsy=cmsy10
+
+ \else
+ \errhelp{You must set \columnsperpage equal to 1, 2, or 3.}
+ \errmessage{Illegal number of columns per page}
+ \fi\fi
+
+ \intercolumnskip=.46in
+ \def\abc{a}
+ \output={%
+ % This next line is useful when designing the layout.
+ %\immediate\write16{Column \folio\abc\space starts with \firstmark}
+ \if \maxcolumn\abc \multicolumnformat \global\def\abc{a}
+ \else\if a\abc
+ \global\setbox\columna\columnbox \global\def\abc{b}
+ %% in case we never use \columnb (two-column mode)
+ \global\setbox\columnb\hbox to -\intercolumnskip{}
+ \else
+ \global\setbox\columnb\columnbox \global\def\abc{c}\fi\fi}
+ \def\multicolumnformat{\shipout\vbox{\makeheadline
+ \hbox{\box\columna\hskip\intercolumnskip
+ \box\columnb\hskip\intercolumnskip\columnbox}
+ \makefootline}\advancepageno}
+ \def\columnbox{\leftline{\pagebody}}
+
+ \def\bye{\par\vfill\supereject
+ \if a\abc \else\null\vfill\eject\fi
+ \if a\abc \else\null\vfill\eject\fi
+ \end}
+\fi
+
+% we won't be using math mode much, so redefine some of the characters
+% we might want to talk about
+\catcode`\^=12
+\catcode`\_=12
+
+\chardef\\=`\\
+\chardef\{=`\{
+\chardef\}=`\}
+
+\hyphenation{mini-buf-fer}
+
+\parindent 0pt
+% \parskip 1ex plus .5ex minus .5ex
+\parskip 0.5ex plus .25ex minus .25ex
+
+\outer\def\newcolumn{\vfill\eject}
+
+\outer\def\title#1{{\titlefont\centerline{#1}}\vskip 1ex plus .5ex}
+
+\outer\def\section#1{\par\filbreak
+ \vskip 1.5ex plus 1ex minus 1ex {\headingfont #1}\mark{#1}%
+ \vskip 1ex plus .5ex minus 0.75ex}
+
+\newdimen\keyindent
+
+\def\beginindentedkeys{\keyindent=1em}
+\def\endindentedkeys{\keyindent=0em}
+\endindentedkeys
+
+\def\paralign{\vskip\parskip\halign}
+
+\def\<#1>{$\langle${\rm #1}$\rangle$}
+
+\def\kbd#1{{\tt#1}\null} %\null so not an abbrev even if period follows
+
+\def\beginexample{\par\leavevmode\begingroup
+ \obeylines\obeyspaces\parskip0pt\tt}
+{\obeyspaces\global\let =\ }
+\def\endexample{\endgroup}
+\def\begincexample{%
+ \par\leavevmode\begingroup%
+ \obeylines\obeyspaces%
+ % bpk--added indentation
+ \advance\leftskip.25truein
+% \parskip0pt%
+ \tt}
+{\obeyspaces\global\let =\ }
+\def\endcexample{\endgroup}
+
+%%%%% Prime definition of key; redefined below to prevent overful hboxes
+
+\def\key#1#2{\leavevmode\hbox to \hsize
+ {\vtop {\hsize=.67\hsize \rightskip=1em #1}
+ \kbd{#2}\hfil}}
+
+\newbox\metaxbox
+\setbox\metaxbox\hbox{\kbd{M-x }}
+\newdimen\metaxwidth
+\metaxwidth=\wd\metaxbox
+
+\def\metax#1#2{\leavevmode\hbox to \hsize{\hbox to .75\hsize
+ {\hskip\keyindent\relax#1\hfil}%
+ \hskip -\metaxwidth minus 1fil
+ \kbd{#2}\hfil}}
+
+\def\threecol#1#2#3{\hskip\keyindent\relax#1\hfil&\kbd{#2}\quad
+ &\kbd{#3}\quad\cr}
+
+%**end of header
+
+% ************
+% ** BISON **
+% ************
+
+\title{Bison Quick Reference}
+
+\section{Starting Bison}
+%***********************
+
+To use Bison, type: \kbd{bison {\it filename}}
+
+Options can be used as: \kbd{bison {\it options} {\it filename}}
+
+\section{Command Line Options}
+%*****************************
+
+\key{Display usage information.} {-h}
+\key{Display version information.} {-V}
+\key{Generate token and {\tt YYSTYPE} definitions.} {-d}
+\key{Prepend a prefix to external symbols.} {-p {\it prefix}}
+\key{Don't put {\tt \#line} directives in the parser.} {-l}
+\key{Specify the output file.} {-o {\it filename}}
+\key{Debug or {\it trace} mode.} {-t}
+\key{Verbose description of the parser.} {-v}
+\key{Emulate {\tt yacc} (generate {\tt y.tab.*} files).} {-y}
+
+\vskip .10truein
+{\bf Note:} The token and {\tt YYSTYPE} definitions are generated
+to a file called {\tt y.tab.h} if the {\tt -y} option is used,
+otherwise it will have the format {\tt {\it name}.tab.h}, where
+{\it name} is the leading part of the parser definition filename.
+
+\section{Definitions}
+%********************
+
+\key{Declare a terminal symbol.}{\%token <{\it t\/}>
+ {\it n}}
+
+\key{Declare a terminal symbol, and define its association.}
+ {{\it association} <{\it t\/}> {\it n}}
+
+\vskip .2\baselineskip
+\key{Generate a reentrant (pure) parser.}
+ {\%pure_parser}
+
+\key{Define the union of all data types used in the parser.}
+ {\%union\{{\it field list}\} }
+
+\vskip .2\baselineskip
+\key{Tell {\tt bison} where to start parsing.}
+ {\%start {\it m}}
+
+\key{Tell {\tt bison} the data type of symbols.}
+ {\%type <{\it t\/}> {\it s1}\dots{\it sn}}
+
+\vskip .10truein
+
+In the above, {\it t} is a {\it type} defined in the {\tt \%union}
+definition, {\it n} is a {\it terminal} symbol name, {\it m} is a
+{\it non-terminal} symbol name, and {\it association} can be one of
+{\tt \%left}, {\tt \%right}, or {\tt \%nonassoc}.
+
+\vskip .10truein
+
+The {\tt <{\it t\/}>} after {\tt \%token, \%left, \%right} and {\tt
+ \%nonassoc} is optional. Additionally, precedence may be overridden
+in the rules with {\tt \%prec} commands.
+
+\section{Parser Definition Files}
+%*********************************
+
+The general form for a parser definition is:
+
+\begincexample
+\{\%
+ /* Initial C code. */
+\%\}
+
+ {\it Token and type definitions}
+
+\%\%
+
+ Rule definition 1
+ \vdots
+ Rule definition {\it n}
+
+\%\%
+
+ /* Other C code. */
+\endcexample
+
+
+% Decrease standard baselineskip for the second page
+ \baselineskip = .9\baselineskip
+
+\section {Rule definitions}
+%**************************
+
+Rules take the form:
+
+\vskip -\baselineskip
+\beginexample
+ non-terminal : {\it statement} 1
+ | {\it statement} 2
+ \vdots
+ | {\it statement n}
+ ;
+\endexample
+
+Where {\it statements} can be either empty, or contain
+a mixture of C code (enclosed in {\tt \{...\}}), and the
+symbols that make up the non-terminal. For example:
+
+\vskip -\baselineskip
+\beginexample
+ expression : number '$+$' number \{ \$\$ $=$ \$1 $+$ \$3 \}
+ | number '$-$' number \{ \$\$ $=$ \$1 $-$ \$3 \}
+ | number '$/$' number \{ \$\$ $=$ \$1 $/$ \$3 \}
+ | number '$*$' number \{ \$\$ $=$ \$1 $*$ \$3 \}
+ ;
+\endexample
+
+For altering the precedence of a symbol use:
+\vskip -\baselineskip
+
+\beginexample
+ \%prec name
+\endexample
+
+For example:
+\vskip -\baselineskip
+\beginexample
+ foo : gnu bar gnu \%prec bar
+ ;
+\endexample
+
+\section{Grammar Variables and Symbols}
+%**************************************
+
+\key{Recognize an error \& continue parsing.}{error}
+\key{Access data associated with a symbol.} {\$\$, \$0\dots\${\it n}}
+\key{Access a field of the data union.} {\$\$.{\it t},
+ \$0.{\it t}\dots\${\it n}.{\it t}}
+\key{Access symbol's location.} {@\$, @0\dots@{\it n}}
+\key{Access data's line location.} {@{\it x}.{\it line\_spec}}
+\key{Access data's column location.} {@{\it x}.{\it column\_spec}}
+
+
+\vskip .10truein
+%
+Where {\it t} is a type defined in the {\tt \%union}, {\it n} is a
+number, {\it x} is a number or \$, {\it line\_spec} one of {\tt
+ first_line} and {\tt last_line}, and {\it column\_spec} is specified
+as either {\tt first_column} or {\tt last_column}.
+
+\section {Variables and Types}
+%*****************************
+
+\key{Current look ahead token.} {yychar}
+\key{Debug mode flag.} {yydebug}
+\key{Data associated with the current token.} {yylval}
+\key{Source position of current token.} {yylloc}
+\key{Number of errors encountered.} {yynerrs}
+\key{Position information type.} {YYLTYPE}
+\key{Data type associated with symbols.} {YYSTYPE}
+
+\section {Functions}
+%*******************
+
+% Redefine to prevent overfull hboxes
+\def\key#1#2{\leavevmode\hbox to \hsize
+ {\vtop {\hsize=.625\hsize \rightskip=1em #1}
+ \kbd{#2}\hfil}}
+
+\key{User defined error handler.} {int yyerror(char *)}
+\key{User defined lexical analyzer.} {int yylex()}
+\key{The grammar parser.} {int yyparse()}
+
+% Return to previous size
+\def\key#1#2{\leavevmode\hbox to \hsize
+ {\vtop {\hsize=.67\hsize \rightskip=1em #1}
+ \kbd{#2}\hfil}}
+
+\section{Macros}
+%***************
+
+\key{Quit parsing immediately. Return 1.} {YYABORT}
+\key{Quit parsing immediately. Return 0.} {YYACCEPT}
+\key{Pretend a syntax error occurred.} {YYERROR}
+\key{Value in {\tt yychar} if no look-ahead token.} {YYEMPTY}
+\key{Clear previous look ahead token.} {yyclearin}
+\key{Recover normally from an error.} {yyerrok}
+
+% **************
+% ** The end **
+% **************
+
+\vskip \baselineskip
+\if 1\ncolumns
+\copyrightnotice
+\else
+\smallcopyrightnotice
+\fi
+
+\bye
+
+
+% Local variables:
+% compile-command: "tex refcard"
+% End:
diff --git a/doc/stamp-vti b/doc/stamp-vti
new file mode 100644
index 0000000..e3b7603
--- /dev/null
+++ b/doc/stamp-vti
@@ -0,0 +1,4 @@
+@set UPDATED 30 May 2006
+@set UPDATED-MONTH May 2006
+@set EDITION 2.3
+@set VERSION 2.3
diff --git a/doc/version.texi b/doc/version.texi
new file mode 100644
index 0000000..e3b7603
--- /dev/null
+++ b/doc/version.texi
@@ -0,0 +1,4 @@
+@set UPDATED 30 May 2006
+@set UPDATED-MONTH May 2006
+@set EDITION 2.3
+@set VERSION 2.3
diff --git a/examples/Makefile b/examples/Makefile
new file mode 100644
index 0000000..6450a83
--- /dev/null
+++ b/examples/Makefile
@@ -0,0 +1,514 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# examples/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
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diff --git a/examples/Makefile.am b/examples/Makefile.am
new file mode 100644
index 0000000..a51ba98
--- /dev/null
+++ b/examples/Makefile.am
@@ -0,0 +1,23 @@
+## Process this file with automake to produce Makefile.in -*-Makefile-*-
+## Copyright (C) 2005 Free Software Foundation, Inc.
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301 USA
+
+if BISON_CXX_WORKS
+SUBDIRS = calc++
+endif
+
+dist_noinst_SCRIPTS = extexi
diff --git a/examples/Makefile.in b/examples/Makefile.in
new file mode 100644
index 0000000..5daa51c
--- /dev/null
+++ b/examples/Makefile.in
@@ -0,0 +1,514 @@
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+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+ $$tags $$unique; \
+ fi
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+ $(TAGS_FILES) $(LISP)
+ tags=; \
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+
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+ dir="/$$dir"; \
+ $(mkdir_p) "$(distdir)$$dir"; \
+ else \
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+ fi; \
+ if test -d $$d/$$file; then \
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+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
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+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
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+ top_distdir="$$top_distdir" \
+ distdir="$$distdir/$$subdir" \
+ distdir) \
+ || exit 1; \
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+pdf: pdf-recursive
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+pdf-am:
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+ps: ps-recursive
+
+ps-am:
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+uninstall-am: uninstall-info-am
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+uninstall-info: uninstall-info-recursive
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+.PHONY: $(RECURSIVE_TARGETS) CTAGS GTAGS all all-am check check-am \
+ clean clean-generic clean-recursive ctags ctags-recursive \
+ distclean distclean-generic distclean-recursive distclean-tags \
+ distdir dvi dvi-am html html-am info info-am install \
+ install-am install-data install-data-am install-exec \
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+ installdirs-am maintainer-clean maintainer-clean-generic \
+ maintainer-clean-recursive mostlyclean mostlyclean-generic \
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+ uninstall uninstall-am uninstall-info-am
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/examples/extexi b/examples/extexi
new file mode 100644
index 0000000..56a50c8
--- /dev/null
+++ b/examples/extexi
@@ -0,0 +1,138 @@
+# Extract all examples from the manual source. -*- AWK -*-
+
+# This file is part of GNU Bison
+# Copyright 1992, 2000, 2001, 2005, 2006 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA
+
+# This script is for use with any Awk that conforms to POSIX.
+# It was derived from a similar script tests/generate.awk in GNU m4.
+#
+# Usage: extexi input-file.texi ... -- [FILES to extract]
+BEGIN {
+ if (!output_dir)
+ output_dir = ".";
+ for (argc = 1; argc < ARGC; ++argc)
+ if (ARGV[argc] == "--")
+ break;
+ for (i = argc + 1; i < ARGC; ++i)
+ file_wanted[ARGV[i]] = 1;
+ ARGC = argc;
+}
+
+/^@node / {
+ if (seq > 0)
+ print "AT_CLEANUP";
+
+ split ($0, tmp, ",");
+ node = substr(tmp[1], 7);
+ seq = 0;
+}
+
+/^@comment file: / {
+ if (!file_wanted[$3])
+ message("ignoring " $3);
+ else
+ {
+ message("extracting " $3);
+ file = $3;
+ }
+}
+
+/^@example$/, /^@end example$/ {
+ if (!file)
+ next;
+
+ if ($0 ~ /^@example$/)
+ {
+ input = files_output[file] ? "\n" : "";
+
+ # FNR is starting at 0 instead of 1, and
+ # #line report the line number of the *next* line.
+ # => + 2.
+ # Note that recent Bison support it, but not Flex.
+ if (file ~ /\.[chy]*$/)
+ input = "#line " (FNR + 1) " \"" FILENAME "\"\n";
+ next;
+ }
+
+ if ($0 ~ /^@end example$/)
+ {
+ if (input == "")
+ fatal("no contents: " file);
+
+ input = normalize(input);
+ # No spurious end of line: use printf.
+ if (files_output[file])
+ # The parens around the output file seem to be required
+ # by awk on Mac OS X Tiger (darwin 8.4.6).
+ printf ("%s", input) >> (output_dir "/" file);
+ else
+ printf ("%s", input) > (output_dir "/" file);
+ close (output_dir "/" file);
+ files_output[file] = 1;
+
+ file = input = "";
+ next;
+ }
+
+ input = input $0 "\n";
+}
+
+
+# We have to handle CONTENTS line per line, since anchors in AWK are
+# referring to the whole string, not the lines.
+function normalize(contents, i, lines, n, line, res) {
+ # Remove the Texinfo tags.
+ n = split (contents, lines, "\n");
+ # We don't want the last field which empty: it's behind the last \n.
+ for (i = 1; i < n; ++i)
+ {
+ line = lines[i];
+
+ # Whole line commands.
+ if (line ~ /^@(c |comment|dots|end (ignore|group)|ignore|group)/)
+ # Gperf accepts empty lines as valid input!!!
+ if (file ~ /\.gperf$/)
+ continue;
+ else
+ line = "";
+
+ gsub (/^@result\{\}/, "", line);
+ gsub (/^@error\{\}/, "", line);
+ gsub ("@[{]", "{", line);
+ gsub ("@}", "}", line);
+ gsub ("@@", "@", line);
+ gsub ("@comment.*", "", line);
+
+ res = res line "\n";
+ }
+ return res;
+}
+
+
+function message(msg) {
+ if (! message_printed[msg])
+ {
+ print "extexi: " msg > "/dev/stderr";
+ message_printed[msg] = 1;
+ }
+}
+
+function fatal(msg) {
+ message(msg);
+ exit 1
+}
diff --git a/lib/Makefile b/lib/Makefile
new file mode 100644
index 0000000..25490d3
--- /dev/null
+++ b/lib/Makefile
@@ -0,0 +1,623 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# lib/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+srcdir = .
+top_srcdir = ..
+
+pkgdatadir = $(datadir)/bison
+pkglibdir = $(libdir)/bison
+pkgincludedir = $(includedir)/bison
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = /usr/bin/install -c
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+ $(srcdir)/gnulib.mk dirname.c dirname.h dup-safer.c error.c \
+ error.h exitfail.c exitfail.h fd-safer.c fopen-safer.c \
+ getopt.c getopt1.c hard-locale.c hard-locale.h hash.c hash.h \
+ malloc.c obstack.c obstack.h pipe-safer.c quote.c quote.h \
+ quotearg.c quotearg.h stdio--.h stdio-safer.h stpcpy.c \
+ strdup.c strdup.h strerror.c strndup.c strndup.h strnlen.c \
+ strnlen.h strtol.c strtoul.c strverscmp.c strverscmp.h \
+ unistd--.h unistd-safer.h unlocked-io.h xalloc.h xmalloc.c
+subdir = lib
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
+ $(top_srcdir)/m4/c-working.m4 $(top_srcdir)/m4/cxx.m4 \
+ $(top_srcdir)/m4/dirname.m4 $(top_srcdir)/m4/dmalloc.m4 \
+ $(top_srcdir)/m4/dos.m4 $(top_srcdir)/m4/error.m4 \
+ $(top_srcdir)/m4/exitfail.m4 $(top_srcdir)/m4/extensions.m4 \
+ $(top_srcdir)/m4/getopt.m4 $(top_srcdir)/m4/gettext_gl.m4 \
+ $(top_srcdir)/m4/gnulib.m4 $(top_srcdir)/m4/hard-locale.m4 \
+ $(top_srcdir)/m4/hash.m4 $(top_srcdir)/m4/iconv.m4 \
+ $(top_srcdir)/m4/inttypes_h_gl.m4 \
+ $(top_srcdir)/m4/lib-ld_gl.m4 $(top_srcdir)/m4/lib-link.m4 \
+ $(top_srcdir)/m4/lib-prefix_gl.m4 $(top_srcdir)/m4/m4.m4 \
+ $(top_srcdir)/m4/mbrtowc.m4 $(top_srcdir)/m4/mbstate_t.m4 \
+ $(top_srcdir)/m4/mbswidth.m4 $(top_srcdir)/m4/nls.m4 \
+ $(top_srcdir)/m4/obstack.m4 $(top_srcdir)/m4/onceonly.m4 \
+ $(top_srcdir)/m4/po_gl.m4 $(top_srcdir)/m4/progtest.m4 \
+ $(top_srcdir)/m4/quote.m4 $(top_srcdir)/m4/quotearg.m4 \
+ $(top_srcdir)/m4/stdbool.m4 $(top_srcdir)/m4/stdint_h_gl.m4 \
+ $(top_srcdir)/m4/stdio-safer.m4 $(top_srcdir)/m4/stpcpy.m4 \
+ $(top_srcdir)/m4/strdup.m4 $(top_srcdir)/m4/strerror.m4 \
+ $(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
+ $(top_srcdir)/m4/strtol.m4 $(top_srcdir)/m4/strtoul.m4 \
+ $(top_srcdir)/m4/strverscmp.m4 $(top_srcdir)/m4/subpipe.m4 \
+ $(top_srcdir)/m4/timevar.m4 $(top_srcdir)/m4/uintmax_t_gl.m4 \
+ $(top_srcdir)/m4/ulonglong_gl.m4 \
+ $(top_srcdir)/m4/unistd-safer.m4 $(top_srcdir)/m4/unistd_h.m4 \
+ $(top_srcdir)/m4/unlocked-io.m4 $(top_srcdir)/m4/warning.m4 \
+ $(top_srcdir)/m4/xalloc.m4 $(top_srcdir)/m4/xstrndup.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/build-aux/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+ $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+ *) f=$$p;; \
+ esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(libdir)"
+libLIBRARIES_INSTALL = $(INSTALL_DATA)
+LIBRARIES = $(lib_LIBRARIES) $(noinst_LIBRARIES)
+AR = ar
+ARFLAGS = cru
+libbison_a_AR = $(AR) $(ARFLAGS)
+am__DEPENDENCIES_1 = dirname$U.o exitfail$U.o hard-locale$U.o hash$U.o quote$U.o quotearg$U.o fopen-safer$U.o dup-safer$U.o fd-safer$U.o pipe-safer$U.o xmalloc$U.o
+am__objects_1 = abitset.$(OBJEXT) bitset.$(OBJEXT) \
+ bitset_stats.$(OBJEXT) bitsetv.$(OBJEXT) ebitset.$(OBJEXT) \
+ lbitset.$(OBJEXT) vbitset.$(OBJEXT)
+am__objects_2 = bitsetv-print.$(OBJEXT)
+am__objects_3 = timevar.$(OBJEXT)
+am__objects_4 = get-errno.$(OBJEXT) subpipe.$(OBJEXT) $(am__objects_1) \
+ $(am__objects_2) $(am__objects_3) argmatch.$(OBJEXT) \
+ basename.$(OBJEXT) stripslash.$(OBJEXT) mbswidth.$(OBJEXT) \
+ xalloc-die.$(OBJEXT) xstrndup.$(OBJEXT)
+am_libbison_a_OBJECTS = $(am__objects_4)
+libbison_a_OBJECTS = $(am_libbison_a_OBJECTS)
+liby_a_AR = $(AR) $(ARFLAGS)
+liby_a_LIBADD =
+am_liby_a_OBJECTS = main.$(OBJEXT) yyerror.$(OBJEXT)
+liby_a_OBJECTS = $(am_liby_a_OBJECTS)
+DEFAULT_INCLUDES = -I. -I$(srcdir) -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/build-aux/depcomp
+am__depfiles_maybe = depfiles
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+SOURCES = $(libbison_a_SOURCES) $(liby_a_SOURCES)
+DIST_SOURCES = $(libbison_a_SOURCES) $(liby_a_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run aclocal-1.9
+AMDEP_FALSE = #
+AMDEP_TRUE =
+AMTAR = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run tar
+AUTOCONF = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoconf
+AUTOHEADER = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoheader
+AUTOM4TE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autom4te
+AUTOMAKE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run automake-1.9
+AWK = gawk
+BISON_CXX_WORKS = :
+BISON_CXX_WORKS_FALSE = #
+BISON_CXX_WORKS_TRUE =
+BISON_LOCALEDIR = /usr/share/locale
+CC = gcc
+CCDEPMODE = depmode=gcc3
+CFLAGS = -g -O2
+CPP = gcc -E
+CPPFLAGS =
+CXX = g++
+CXXDEPMODE = depmode=gcc3
+CXXFLAGS = -g -O2
+CYGPATH_W = echo
+DEFS = -DHAVE_CONFIG_H
+DEPDIR = .deps
+ECHO_C =
+ECHO_N = -n
+ECHO_T =
+EGREP = grep -E
+EXEEXT =
+GCC = yes
+GETOPT_H =
+GMSGFMT = /usr/bin/msgfmt
+HAVE__BOOL = 1
+INSTALL_DATA = ${INSTALL} -m 644
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_SCRIPT = ${INSTALL}
+INSTALL_STRIP_PROGRAM = ${SHELL} $(install_sh) -c -s
+INTLLIBS =
+INTL_MACOSX_LIBS =
+LDFLAGS =
+LEX = flex
+LEXLIB = -lfl
+LEX_OUTPUT_ROOT = lex.yy
+LIBICONV = -liconv
+LIBINTL =
+LIBOBJS = dirname$U.o exitfail$U.o hard-locale$U.o hash$U.o quote$U.o quotearg$U.o fopen-safer$U.o dup-safer$U.o fd-safer$U.o pipe-safer$U.o xmalloc$U.o
+LIBS =
+LTLIBICONV = -liconv
+LTLIBINTL =
+LTLIBOBJS = dirname$U.lo exitfail$U.lo hard-locale$U.lo hash$U.lo quote$U.lo quotearg$U.lo fopen-safer$U.lo dup-safer$U.lo fd-safer$U.lo pipe-safer$U.lo xmalloc$U.lo
+M4 = /usr/bin/m4
+MAKEINFO = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run makeinfo
+MKINSTALLDIRS = $(top_builddir)/build-aux/mkinstalldirs
+MSGFMT = /usr/bin/msgfmt
+MSGMERGE = /usr/bin/msgmerge
+O0CFLAGS = -g
+O0CXXFLAGS = -g
+OBJEXT = o
+PACKAGE = bison
+PACKAGE_BUGREPORT = bug-bison@gnu.org
+PACKAGE_NAME = GNU Bison
+PACKAGE_STRING = GNU Bison 2.3
+PACKAGE_TARNAME = bison
+PACKAGE_VERSION = 2.3
+PATH_SEPARATOR = :
+POSUB = po
+RANLIB = ranlib
+SET_MAKE =
+SHELL = /bin/sh
+STDBOOL_H =
+STRIP =
+UNISTD_H =
+USE_NLS = yes
+VALGRIND =
+VERSION = 2.3
+WARNING_CFLAGS =
+WARNING_CXXFLAGS =
+WERROR_CFLAGS =
+XGETTEXT = /usr/bin/xgettext
+YACC = bison -y
+YACC_LIBRARY = liby.a
+YACC_SCRIPT = yacc
+ac_ct_CC = gcc
+ac_ct_CXX = g++
+ac_ct_RANLIB = ranlib
+ac_ct_STRIP =
+aclocaldir = ${datadir}/aclocal
+am__fastdepCC_FALSE = #
+am__fastdepCC_TRUE =
+am__fastdepCXX_FALSE = #
+am__fastdepCXX_TRUE =
+am__include = include
+am__leading_dot = .
+am__quote =
+am__tar = ${AMTAR} chof - "$$tardir"
+am__untar = ${AMTAR} xf -
+bindir = ${exec_prefix}/bin
+build = x86_64-unknown-linux-gnu
+build_alias =
+build_cpu = x86_64
+build_os = linux-gnu
+build_vendor = unknown
+datadir = ${prefix}/share
+exec_prefix = ${prefix}
+host = x86_64-unknown-linux-gnu
+host_alias =
+host_cpu = x86_64
+host_os = linux-gnu
+host_vendor = unknown
+includedir = ${prefix}/include
+infodir = ${prefix}/info
+install_sh = /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/install-sh
+libdir = ${exec_prefix}/lib
+libexecdir = ${exec_prefix}/libexec
+localstatedir = ${prefix}/var
+mandir = ${prefix}/man
+mkdir_p = mkdir -p --
+oldincludedir = /usr/include
+prefix = /home/phanna/src/bison
+program_transform_name = s,x,x,
+sbindir = ${exec_prefix}/sbin
+sharedstatedir = ${prefix}/com
+sysconfdir = ${prefix}/etc
+target_alias =
+AM_CFLAGS = $(WARNING_CFLAGS)
+BUILT_SOURCES = $(GETOPT_H) $(STDBOOL_H) $(UNISTD_H)
+EXTRA_DIST = getopt_.h getopt_int.h stdbool_.h
+MOSTLYCLEANFILES = getopt.h getopt.h-t stdbool.h stdbool.h-t unistd.h
+lib_LIBRARIES = $(YACC_LIBRARY)
+EXTRA_LIBRARIES = liby.a
+noinst_LIBRARIES = libbison.a
+liby_a_SOURCES = main.c yyerror.c
+libbison_a_SOURCES = $(lib_SOURCES)
+
+# This file is generated automatically by "bootstrap".
+
+# This is for those projects which use "gettextize --intl" to put a source-code
+# copy of libintl into their package. In such projects, every Makefile.am needs
+# -I$(top_builddir)/intl, so that <libintl.h> can be found in this directory.
+# For the Makefile.ams in other directories it is the maintainer's
+# responsibility; for the one from gnulib we do it here.
+# This option has no effect when the user disables NLS (because then the intl
+# directory contains no libintl.h file) or when the project does not use
+# "gettextize --intl".
+# (commented out by bootstrap) AM_CPPFLAGS += -I$(top_builddir)/intl
+lib_SOURCES = get-errno.h get-errno.c subpipe.h subpipe.c \
+ $(bitsets_sources) $(additional_bitsets_sources) \
+ $(timevars_sources) argmatch.h argmatch.c basename.c \
+ stripslash.c exit.h gettext.h mbswidth.h mbswidth.c stpcpy.h \
+ verify.h xalloc-die.c xstrndup.h xstrndup.c
+
+# Implementation of bitsets
+bitsets_sources = \
+ abitset.c abitset.h bbitset.h bitset.c bitset.h bitset_stats.c \
+ bitset_stats.h bitsetv.c bitsetv.h ebitset.c ebitset.h lbitset.c \
+ lbitset.h libiberty.h vbitset.c vbitset.h
+
+
+# Additional bitset operations.
+additional_bitsets_sources = \
+ bitsetv-print.h bitsetv-print.c
+
+
+# timevars, stolen from GCC.
+timevars_sources = \
+ timevar.h timevar.c timevar.def
+
+libbison_a_LIBADD = $(LIBOBJS) $(ALLOCA)
+libbison_a_DEPENDENCIES = $(libbison_a_LIBADD)
+all: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .o .obj
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(srcdir)/gnulib.mk $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+ && exit 0; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu lib/Makefile'; \
+ cd $(top_srcdir) && \
+ $(AUTOMAKE) --gnu lib/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+ esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+install-libLIBRARIES: $(lib_LIBRARIES)
+ @$(NORMAL_INSTALL)
+ test -z "$(libdir)" || $(mkdir_p) "$(DESTDIR)$(libdir)"
+ @list='$(lib_LIBRARIES)'; for p in $$list; do \
+ if test -f $$p; then \
+ f=$(am__strip_dir) \
+ echo " $(libLIBRARIES_INSTALL) '$$p' '$(DESTDIR)$(libdir)/$$f'"; \
+ $(libLIBRARIES_INSTALL) "$$p" "$(DESTDIR)$(libdir)/$$f"; \
+ else :; fi; \
+ done
+ @$(POST_INSTALL)
+ @list='$(lib_LIBRARIES)'; for p in $$list; do \
+ if test -f $$p; then \
+ p=$(am__strip_dir) \
+ echo " $(RANLIB) '$(DESTDIR)$(libdir)/$$p'"; \
+ $(RANLIB) "$(DESTDIR)$(libdir)/$$p"; \
+ else :; fi; \
+ done
+
+uninstall-libLIBRARIES:
+ @$(NORMAL_UNINSTALL)
+ @list='$(lib_LIBRARIES)'; for p in $$list; do \
+ p=$(am__strip_dir) \
+ echo " rm -f '$(DESTDIR)$(libdir)/$$p'"; \
+ rm -f "$(DESTDIR)$(libdir)/$$p"; \
+ done
+
+clean-libLIBRARIES:
+ -test -z "$(lib_LIBRARIES)" || rm -f $(lib_LIBRARIES)
+
+clean-noinstLIBRARIES:
+ -test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+libbison.a: $(libbison_a_OBJECTS) $(libbison_a_DEPENDENCIES)
+ -rm -f libbison.a
+ $(libbison_a_AR) libbison.a $(libbison_a_OBJECTS) $(libbison_a_LIBADD)
+ $(RANLIB) libbison.a
+liby.a: $(liby_a_OBJECTS) $(liby_a_DEPENDENCIES)
+ -rm -f liby.a
+ $(liby_a_AR) liby.a $(liby_a_OBJECTS) $(liby_a_LIBADD)
+ $(RANLIB) liby.a
+
+mostlyclean-compile:
+ -rm -f *.$(OBJEXT)
+
+distclean-compile:
+ -rm -f *.tab.c
+
+include $(DEPDIR)/dirname.Po
+include $(DEPDIR)/dup-safer.Po
+include $(DEPDIR)/error.Po
+include $(DEPDIR)/exitfail.Po
+include $(DEPDIR)/fd-safer.Po
+include $(DEPDIR)/fopen-safer.Po
+include $(DEPDIR)/getopt.Po
+include $(DEPDIR)/getopt1.Po
+include $(DEPDIR)/hard-locale.Po
+include $(DEPDIR)/hash.Po
+include $(DEPDIR)/malloc.Po
+include $(DEPDIR)/obstack.Po
+include $(DEPDIR)/pipe-safer.Po
+include $(DEPDIR)/quote.Po
+include $(DEPDIR)/quotearg.Po
+include $(DEPDIR)/stpcpy.Po
+include $(DEPDIR)/strdup.Po
+include $(DEPDIR)/strerror.Po
+include $(DEPDIR)/strndup.Po
+include $(DEPDIR)/strnlen.Po
+include $(DEPDIR)/strtol.Po
+include $(DEPDIR)/strtoul.Po
+include $(DEPDIR)/strverscmp.Po
+include $(DEPDIR)/xmalloc.Po
+include ./$(DEPDIR)/abitset.Po
+include ./$(DEPDIR)/argmatch.Po
+include ./$(DEPDIR)/basename.Po
+include ./$(DEPDIR)/bitset.Po
+include ./$(DEPDIR)/bitset_stats.Po
+include ./$(DEPDIR)/bitsetv-print.Po
+include ./$(DEPDIR)/bitsetv.Po
+include ./$(DEPDIR)/ebitset.Po
+include ./$(DEPDIR)/get-errno.Po
+include ./$(DEPDIR)/lbitset.Po
+include ./$(DEPDIR)/main.Po
+include ./$(DEPDIR)/mbswidth.Po
+include ./$(DEPDIR)/stripslash.Po
+include ./$(DEPDIR)/subpipe.Po
+include ./$(DEPDIR)/timevar.Po
+include ./$(DEPDIR)/vbitset.Po
+include ./$(DEPDIR)/xalloc-die.Po
+include ./$(DEPDIR)/xstrndup.Po
+include ./$(DEPDIR)/yyerror.Po
+
+.c.o:
+ if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ $<; \
+ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+# source='$<' object='$@' libtool=no \
+# DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
+# $(COMPILE) -c $<
+
+.c.obj:
+ if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ `$(CYGPATH_W) '$<'`; \
+ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+# source='$<' object='$@' libtool=no \
+# DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
+# $(COMPILE) -c `$(CYGPATH_W) '$<'`
+uninstall-info-am:
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ mkid -fID $$unique
+tags: TAGS
+
+TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+ test -n "$$unique" || unique=$$empty_fix; \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ $$tags $$unique; \
+ fi
+ctags: CTAGS
+CTAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ test -z "$(CTAGS_ARGS)$$tags$$unique" \
+ || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+ $$tags $$unique
+
+GTAGS:
+ here=`$(am__cd) $(top_builddir) && pwd` \
+ && cd $(top_srcdir) \
+ && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+ list='$(DISTFILES)'; for file in $$list; do \
+ case $$file in \
+ $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+ $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+ esac; \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+ dir="/$$dir"; \
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+ else \
+ dir=''; \
+ fi; \
+ if test -d $$d/$$file; then \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
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+ test -z "$$dir" || $(mkdir_p) "$$dir"; \
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+ $(MAKE) $(AM_MAKEFLAGS) install-am
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+install-am: all-am
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+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+ -test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-am
+
+clean-am: clean-generic clean-libLIBRARIES clean-noinstLIBRARIES \
+ mostlyclean-am
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+ -rm -f Makefile
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+ distclean-tags
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+dvi: dvi-am
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+maintainer-clean: maintainer-clean-am
+ -rm -rf $(DEPDIR) ./$(DEPDIR)
+ -rm -f Makefile
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+mostlyclean: mostlyclean-am
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+pdf: pdf-am
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+pdf-am:
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+ps: ps-am
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+ps-am:
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+uninstall-am: uninstall-info-am uninstall-libLIBRARIES
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+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+ clean-libLIBRARIES clean-noinstLIBRARIES ctags distclean \
+ distclean-compile distclean-generic distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-exec install-exec-am \
+ install-info install-info-am install-libLIBRARIES install-man \
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+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
+ tags uninstall uninstall-am uninstall-info-am \
+ uninstall-libLIBRARIES
+
+
+# We need the following in order to create <getopt.h> when the system
+# doesn't have one that works with the given compiler.
+getopt.h: getopt_.h
+ cp $(srcdir)/getopt_.h $@-t
+ mv $@-t $@
+
+# We need the following in order to create <stdbool.h> when the system
+# doesn't have one that works.
+stdbool.h: stdbool_.h
+ sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool_.h > $@-t
+ mv $@-t $@
+
+# We need the following in order to create an empty placeholder for
+# <unistd.h> when the system doesn't have one.
+unistd.h:
+ echo '/* Empty placeholder for $@. */' >$@
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/Makefile.am b/lib/Makefile.am
new file mode 100644
index 0000000..f4d783e
--- /dev/null
+++ b/lib/Makefile.am
@@ -0,0 +1,53 @@
+## Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301 USA
+
+AM_CFLAGS = $(WARNING_CFLAGS)
+
+BUILT_SOURCES =
+EXTRA_DIST =
+MOSTLYCLEANFILES =
+
+lib_LIBRARIES = $(YACC_LIBRARY)
+EXTRA_LIBRARIES = liby.a
+noinst_LIBRARIES = libbison.a
+
+liby_a_SOURCES = main.c yyerror.c
+
+libbison_a_SOURCES = $(lib_SOURCES)
+lib_SOURCES = \
+ get-errno.h get-errno.c \
+ subpipe.h subpipe.c \
+ $(bitsets_sources) $(additional_bitsets_sources) $(timevars_sources)
+
+# Implementation of bitsets
+bitsets_sources = \
+ abitset.c abitset.h bbitset.h bitset.c bitset.h bitset_stats.c \
+ bitset_stats.h bitsetv.c bitsetv.h ebitset.c ebitset.h lbitset.c \
+ lbitset.h libiberty.h vbitset.c vbitset.h
+
+# Additional bitset operations.
+additional_bitsets_sources = \
+ bitsetv-print.h bitsetv-print.c
+
+# timevars, stolen from GCC.
+timevars_sources = \
+ timevar.h timevar.c timevar.def
+
+libbison_a_LIBADD = $(LIBOBJS) $(ALLOCA)
+libbison_a_DEPENDENCIES = $(libbison_a_LIBADD)
+
+include gnulib.mk
diff --git a/lib/Makefile.in b/lib/Makefile.in
new file mode 100644
index 0000000..d3613e9
--- /dev/null
+++ b/lib/Makefile.in
@@ -0,0 +1,623 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+ $(srcdir)/gnulib.mk dirname.c dirname.h dup-safer.c error.c \
+ error.h exitfail.c exitfail.h fd-safer.c fopen-safer.c \
+ getopt.c getopt1.c hard-locale.c hard-locale.h hash.c hash.h \
+ malloc.c obstack.c obstack.h pipe-safer.c quote.c quote.h \
+ quotearg.c quotearg.h stdio--.h stdio-safer.h stpcpy.c \
+ strdup.c strdup.h strerror.c strndup.c strndup.h strnlen.c \
+ strnlen.h strtol.c strtoul.c strverscmp.c strverscmp.h \
+ unistd--.h unistd-safer.h unlocked-io.h xalloc.h xmalloc.c
+subdir = lib
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
+ $(top_srcdir)/m4/c-working.m4 $(top_srcdir)/m4/cxx.m4 \
+ $(top_srcdir)/m4/dirname.m4 $(top_srcdir)/m4/dmalloc.m4 \
+ $(top_srcdir)/m4/dos.m4 $(top_srcdir)/m4/error.m4 \
+ $(top_srcdir)/m4/exitfail.m4 $(top_srcdir)/m4/extensions.m4 \
+ $(top_srcdir)/m4/getopt.m4 $(top_srcdir)/m4/gettext_gl.m4 \
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+ $(top_srcdir)/m4/lib-ld_gl.m4 $(top_srcdir)/m4/lib-link.m4 \
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+ $(top_srcdir)/m4/po_gl.m4 $(top_srcdir)/m4/progtest.m4 \
+ $(top_srcdir)/m4/quote.m4 $(top_srcdir)/m4/quotearg.m4 \
+ $(top_srcdir)/m4/stdbool.m4 $(top_srcdir)/m4/stdint_h_gl.m4 \
+ $(top_srcdir)/m4/stdio-safer.m4 $(top_srcdir)/m4/stpcpy.m4 \
+ $(top_srcdir)/m4/strdup.m4 $(top_srcdir)/m4/strerror.m4 \
+ $(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
+ $(top_srcdir)/m4/strtol.m4 $(top_srcdir)/m4/strtoul.m4 \
+ $(top_srcdir)/m4/strverscmp.m4 $(top_srcdir)/m4/subpipe.m4 \
+ $(top_srcdir)/m4/timevar.m4 $(top_srcdir)/m4/uintmax_t_gl.m4 \
+ $(top_srcdir)/m4/ulonglong_gl.m4 \
+ $(top_srcdir)/m4/unistd-safer.m4 $(top_srcdir)/m4/unistd_h.m4 \
+ $(top_srcdir)/m4/unlocked-io.m4 $(top_srcdir)/m4/warning.m4 \
+ $(top_srcdir)/m4/xalloc.m4 $(top_srcdir)/m4/xstrndup.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/build-aux/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+ $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+ *) f=$$p;; \
+ esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(libdir)"
+libLIBRARIES_INSTALL = $(INSTALL_DATA)
+LIBRARIES = $(lib_LIBRARIES) $(noinst_LIBRARIES)
+AR = ar
+ARFLAGS = cru
+libbison_a_AR = $(AR) $(ARFLAGS)
+am__DEPENDENCIES_1 = @LIBOBJS@
+am__objects_1 = abitset.$(OBJEXT) bitset.$(OBJEXT) \
+ bitset_stats.$(OBJEXT) bitsetv.$(OBJEXT) ebitset.$(OBJEXT) \
+ lbitset.$(OBJEXT) vbitset.$(OBJEXT)
+am__objects_2 = bitsetv-print.$(OBJEXT)
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+am_libbison_a_OBJECTS = $(am__objects_4)
+libbison_a_OBJECTS = $(am_libbison_a_OBJECTS)
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+liby_a_LIBADD =
+am_liby_a_OBJECTS = main.$(OBJEXT) yyerror.$(OBJEXT)
+liby_a_OBJECTS = $(am_liby_a_OBJECTS)
+DEFAULT_INCLUDES = -I. -I$(srcdir) -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/build-aux/depcomp
+am__depfiles_maybe = depfiles
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+SOURCES = $(libbison_a_SOURCES) $(liby_a_SOURCES)
+DIST_SOURCES = $(libbison_a_SOURCES) $(liby_a_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMDEP_FALSE = @AMDEP_FALSE@
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+BISON_CXX_WORKS = @BISON_CXX_WORKS@
+BISON_CXX_WORKS_FALSE = @BISON_CXX_WORKS_FALSE@
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+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
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+XGETTEXT = @XGETTEXT@
+YACC = @YACC@
+YACC_LIBRARY = @YACC_LIBRARY@
+YACC_SCRIPT = @YACC_SCRIPT@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
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+prefix = @prefix@
+program_transform_name = @program_transform_name@
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+sharedstatedir = @sharedstatedir@
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+target_alias = @target_alias@
+AM_CFLAGS = $(WARNING_CFLAGS)
+BUILT_SOURCES = $(GETOPT_H) $(STDBOOL_H) $(UNISTD_H)
+EXTRA_DIST = getopt_.h getopt_int.h stdbool_.h
+MOSTLYCLEANFILES = getopt.h getopt.h-t stdbool.h stdbool.h-t unistd.h
+lib_LIBRARIES = $(YACC_LIBRARY)
+EXTRA_LIBRARIES = liby.a
+noinst_LIBRARIES = libbison.a
+liby_a_SOURCES = main.c yyerror.c
+libbison_a_SOURCES = $(lib_SOURCES)
+
+# This file is generated automatically by "bootstrap".
+
+# This is for those projects which use "gettextize --intl" to put a source-code
+# copy of libintl into their package. In such projects, every Makefile.am needs
+# -I$(top_builddir)/intl, so that <libintl.h> can be found in this directory.
+# For the Makefile.ams in other directories it is the maintainer's
+# responsibility; for the one from gnulib we do it here.
+# This option has no effect when the user disables NLS (because then the intl
+# directory contains no libintl.h file) or when the project does not use
+# "gettextize --intl".
+# (commented out by bootstrap) AM_CPPFLAGS += -I$(top_builddir)/intl
+lib_SOURCES = get-errno.h get-errno.c subpipe.h subpipe.c \
+ $(bitsets_sources) $(additional_bitsets_sources) \
+ $(timevars_sources) argmatch.h argmatch.c basename.c \
+ stripslash.c exit.h gettext.h mbswidth.h mbswidth.c stpcpy.h \
+ verify.h xalloc-die.c xstrndup.h xstrndup.c
+
+# Implementation of bitsets
+bitsets_sources = \
+ abitset.c abitset.h bbitset.h bitset.c bitset.h bitset_stats.c \
+ bitset_stats.h bitsetv.c bitsetv.h ebitset.c ebitset.h lbitset.c \
+ lbitset.h libiberty.h vbitset.c vbitset.h
+
+
+# Additional bitset operations.
+additional_bitsets_sources = \
+ bitsetv-print.h bitsetv-print.c
+
+
+# timevars, stolen from GCC.
+timevars_sources = \
+ timevar.h timevar.c timevar.def
+
+libbison_a_LIBADD = $(LIBOBJS) $(ALLOCA)
+libbison_a_DEPENDENCIES = $(libbison_a_LIBADD)
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+
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+ $(AUTOMAKE) --gnu lib/Makefile
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+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
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+# We need the following in order to create <getopt.h> when the system
+# doesn't have one that works with the given compiler.
+getopt.h: getopt_.h
+ cp $(srcdir)/getopt_.h $@-t
+ mv $@-t $@
+
+# We need the following in order to create <stdbool.h> when the system
+# doesn't have one that works.
+stdbool.h: stdbool_.h
+ sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool_.h > $@-t
+ mv $@-t $@
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
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diff --git a/lib/abitset.c b/lib/abitset.c
new file mode 100644
index 0000000..17c0a4a
--- /dev/null
+++ b/lib/abitset.c
@@ -0,0 +1,828 @@
+/* Array bitsets.
+ Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "abitset.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* This file implements fixed size bitsets stored as an array
+ of words. Any unused bits in the last word must be zero. */
+
+#define ABITSET_N_WORDS(N) (((N) + BITSET_WORD_BITS - 1) / BITSET_WORD_BITS)
+#define ABITSET_WORDS(X) ((X)->a.words)
+
+
+static bitset_bindex
+abitset_resize (bitset src, bitset_bindex size)
+{
+ /* These bitsets have a fixed size. */
+ if (BITSET_SIZE_ (src) != size)
+ abort ();
+
+ return size;
+}
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT and store in array LIST. Return with actual number of bits
+ found and with *NEXT indicating where search stopped. */
+static bitset_bindex
+abitset_small_list (bitset src, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex bitno;
+ bitset_bindex count;
+ bitset_windex size;
+ bitset_word word;
+
+ word = ABITSET_WORDS (src)[0];
+
+ /* Short circuit common case. */
+ if (!word)
+ return 0;
+
+ size = BITSET_SIZE_ (src);
+ bitno = *next;
+ if (bitno >= size)
+ return 0;
+
+ word >>= bitno;
+
+ /* If num is 1, we could speed things up with a binary search
+ of the word of interest. */
+
+ if (num >= BITSET_WORD_BITS)
+ {
+ for (count = 0; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ else
+ {
+ for (count = 0; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ bitno++;
+ break;
+ }
+ }
+ word >>= 1;
+ }
+ }
+
+ *next = bitno;
+ return count;
+}
+
+
+/* Set bit BITNO in bitset DST. */
+static void
+abitset_set (bitset dst ATTRIBUTE_UNUSED, bitset_bindex bitno ATTRIBUTE_UNUSED)
+{
+ /* This should never occur for abitsets since we should always hit
+ the cache. It is likely someone is trying to access outside the
+ bounds of the bitset. */
+ abort ();
+}
+
+
+/* Reset bit BITNO in bitset DST. */
+static void
+abitset_reset (bitset dst ATTRIBUTE_UNUSED,
+ bitset_bindex bitno ATTRIBUTE_UNUSED)
+{
+ /* This should never occur for abitsets since we should always hit
+ the cache. It is likely someone is trying to access outside the
+ bounds of the bitset. Since the bit is zero anyway, let it pass. */
+}
+
+
+/* Test bit BITNO in bitset SRC. */
+static bool
+abitset_test (bitset src ATTRIBUTE_UNUSED,
+ bitset_bindex bitno ATTRIBUTE_UNUSED)
+{
+ /* This should never occur for abitsets since we should always
+ hit the cache. */
+ return false;
+}
+
+
+/* Find list of up to NUM bits set in BSET in reverse order, starting
+ from and including NEXT and store in array LIST. Return with
+ actual number of bits found and with *NEXT indicating where search
+ stopped. */
+static bitset_bindex
+abitset_list_reverse (bitset src, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex bitno;
+ bitset_bindex rbitno;
+ bitset_bindex count;
+ bitset_windex windex;
+ unsigned int bitcnt;
+ bitset_bindex bitoff;
+ bitset_word *srcp = ABITSET_WORDS (src);
+ bitset_bindex n_bits = BITSET_SIZE_ (src);
+
+ rbitno = *next;
+
+ /* If num is 1, we could speed things up with a binary search
+ of the word of interest. */
+
+ if (rbitno >= n_bits)
+ return 0;
+
+ count = 0;
+
+ bitno = n_bits - (rbitno + 1);
+
+ windex = bitno / BITSET_WORD_BITS;
+ bitcnt = bitno % BITSET_WORD_BITS;
+ bitoff = windex * BITSET_WORD_BITS;
+
+ do
+ {
+ bitset_word word;
+
+ word = srcp[windex] << (BITSET_WORD_BITS - 1 - bitcnt);
+ for (; word; bitcnt--)
+ {
+ if (word & BITSET_MSB)
+ {
+ list[count++] = bitoff + bitcnt;
+ if (count >= num)
+ {
+ *next = n_bits - (bitoff + bitcnt);
+ return count;
+ }
+ }
+ word <<= 1;
+ }
+ bitoff -= BITSET_WORD_BITS;
+ bitcnt = BITSET_WORD_BITS - 1;
+ }
+ while (windex--);
+
+ *next = n_bits - (bitoff + 1);
+ return count;
+}
+
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT and store in array LIST. Return with actual number of bits
+ found and with *NEXT indicating where search stopped. */
+static bitset_bindex
+abitset_list (bitset src, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex bitno;
+ bitset_bindex count;
+ bitset_windex windex;
+ bitset_bindex bitoff;
+ bitset_windex size = src->b.csize;
+ bitset_word *srcp = ABITSET_WORDS (src);
+ bitset_word word;
+
+ bitno = *next;
+
+ count = 0;
+ if (!bitno)
+ {
+ /* Many bitsets are zero, so make this common case fast. */
+ for (windex = 0; windex < size && !srcp[windex]; windex++)
+ continue;
+ if (windex >= size)
+ return 0;
+
+ /* If num is 1, we could speed things up with a binary search
+ of the current word. */
+
+ bitoff = windex * BITSET_WORD_BITS;
+ }
+ else
+ {
+ if (bitno >= BITSET_SIZE_ (src))
+ return 0;
+
+ windex = bitno / BITSET_WORD_BITS;
+ bitno = bitno % BITSET_WORD_BITS;
+
+ if (bitno)
+ {
+ /* Handle the case where we start within a word.
+ Most often, this is executed with large bitsets
+ with many set bits where we filled the array
+ on the previous call to this function. */
+
+ bitoff = windex * BITSET_WORD_BITS;
+ word = srcp[windex] >> bitno;
+ for (bitno = bitoff + bitno; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ windex++;
+ }
+ bitoff = windex * BITSET_WORD_BITS;
+ }
+
+ for (; windex < size; windex++, bitoff += BITSET_WORD_BITS)
+ {
+ if (!(word = srcp[windex]))
+ continue;
+
+ if ((count + BITSET_WORD_BITS) < num)
+ {
+ for (bitno = bitoff; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ else
+ {
+ for (bitno = bitoff; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ }
+ }
+
+ *next = bitoff;
+ return count;
+}
+
+
+/* Ensure that any unused bits within the last word are clear. */
+static inline void
+abitset_unused_clear (bitset dst)
+{
+ unsigned int last_bit;
+
+ last_bit = BITSET_SIZE_ (dst) % BITSET_WORD_BITS;
+ if (last_bit)
+ ABITSET_WORDS (dst)[dst->b.csize - 1] &=
+ ((bitset_word) 1 << last_bit) - 1;
+}
+
+
+static void
+abitset_ones (bitset dst)
+{
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ size_t bytes;
+
+ bytes = sizeof (bitset_word) * dst->b.csize;
+
+ memset (dstp, -1, bytes);
+ abitset_unused_clear (dst);
+}
+
+
+static void
+abitset_zero (bitset dst)
+{
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ size_t bytes;
+
+ bytes = sizeof (bitset_word) * dst->b.csize;
+
+ memset (dstp, 0, bytes);
+}
+
+
+static bool
+abitset_empty_p (bitset dst)
+{
+ bitset_windex i;
+ bitset_word *dstp = ABITSET_WORDS (dst);
+
+ for (i = 0; i < dst->b.csize; i++)
+ if (dstp[i])
+ return false;
+
+ return true;
+}
+
+
+static void
+abitset_copy1 (bitset dst, bitset src)
+{
+ bitset_word *srcp = ABITSET_WORDS (src);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ if (srcp == dstp)
+ return;
+ memcpy (dstp, srcp, sizeof (bitset_word) * size);
+}
+
+
+static void
+abitset_not (bitset dst, bitset src)
+{
+ bitset_windex i;
+ bitset_word *srcp = ABITSET_WORDS (src);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = ~(*srcp++);
+ abitset_unused_clear (dst);
+}
+
+
+static bool
+abitset_equal_p (bitset dst, bitset src)
+{
+ bitset_windex i;
+ bitset_word *srcp = ABITSET_WORDS (src);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ if (*srcp++ != *dstp++)
+ return false;
+ return true;
+}
+
+
+static bool
+abitset_subset_p (bitset dst, bitset src)
+{
+ bitset_windex i;
+ bitset_word *srcp = ABITSET_WORDS (src);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++, srcp++)
+ if (*dstp != (*srcp | *dstp))
+ return false;
+ return true;
+}
+
+
+static bool
+abitset_disjoint_p (bitset dst, bitset src)
+{
+ bitset_windex i;
+ bitset_word *srcp = ABITSET_WORDS (src);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ if (*srcp++ & *dstp++)
+ return false;
+
+ return true;
+}
+
+
+static void
+abitset_and (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = *src1p++ & *src2p++;
+}
+
+
+static bool
+abitset_and_cmp (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bool changed = false;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ & *src2p++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+abitset_andn (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = *src1p++ & ~(*src2p++);
+}
+
+
+static bool
+abitset_andn_cmp (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bool changed = false;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ & ~(*src2p++);
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+abitset_or (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = *src1p++ | *src2p++;
+}
+
+
+static bool
+abitset_or_cmp (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bool changed = false;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ | *src2p++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+abitset_xor (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = *src1p++ ^ *src2p++;
+}
+
+
+static bool
+abitset_xor_cmp (bitset dst, bitset src1, bitset src2)
+{
+ bitset_windex i;
+ bool changed = false;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ ^ *src2p++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+abitset_and_or (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_windex i;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *src3p = ABITSET_WORDS (src3);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = (*src1p++ & *src2p++) | *src3p++;
+}
+
+
+static bool
+abitset_and_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_windex i;
+ bool changed = false;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *src3p = ABITSET_WORDS (src3);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = (*src1p++ & *src2p++) | *src3p++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+abitset_andn_or (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_windex i;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *src3p = ABITSET_WORDS (src3);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = (*src1p++ & ~(*src2p++)) | *src3p++;
+}
+
+
+static bool
+abitset_andn_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_windex i;
+ bool changed = false;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *src3p = ABITSET_WORDS (src3);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = (*src1p++ & ~(*src2p++)) | *src3p++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+abitset_or_and (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_windex i;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *src3p = ABITSET_WORDS (src3);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++)
+ *dstp++ = (*src1p++ | *src2p++) & *src3p++;
+}
+
+
+static bool
+abitset_or_and_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_windex i;
+ bool changed = false;
+ bitset_word *src1p = ABITSET_WORDS (src1);
+ bitset_word *src2p = ABITSET_WORDS (src2);
+ bitset_word *src3p = ABITSET_WORDS (src3);
+ bitset_word *dstp = ABITSET_WORDS (dst);
+ bitset_windex size = dst->b.csize;
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = (*src1p++ | *src2p++) & *src3p++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+abitset_copy (bitset dst, bitset src)
+{
+ if (BITSET_COMPATIBLE_ (dst, src))
+ abitset_copy1 (dst, src);
+ else
+ bitset_copy_ (dst, src);
+}
+
+
+/* Vector of operations for single word bitsets. */
+struct bitset_vtable abitset_small_vtable = {
+ abitset_set,
+ abitset_reset,
+ bitset_toggle_,
+ abitset_test,
+ abitset_resize,
+ bitset_size_,
+ bitset_count_,
+ abitset_empty_p,
+ abitset_ones,
+ abitset_zero,
+ abitset_copy,
+ abitset_disjoint_p,
+ abitset_equal_p,
+ abitset_not,
+ abitset_subset_p,
+ abitset_and,
+ abitset_and_cmp,
+ abitset_andn,
+ abitset_andn_cmp,
+ abitset_or,
+ abitset_or_cmp,
+ abitset_xor,
+ abitset_xor_cmp,
+ abitset_and_or,
+ abitset_and_or_cmp,
+ abitset_andn_or,
+ abitset_andn_or_cmp,
+ abitset_or_and,
+ abitset_or_and_cmp,
+ abitset_small_list,
+ abitset_list_reverse,
+ NULL,
+ BITSET_ARRAY
+};
+
+
+/* Vector of operations for multiple word bitsets. */
+struct bitset_vtable abitset_vtable = {
+ abitset_set,
+ abitset_reset,
+ bitset_toggle_,
+ abitset_test,
+ abitset_resize,
+ bitset_size_,
+ bitset_count_,
+ abitset_empty_p,
+ abitset_ones,
+ abitset_zero,
+ abitset_copy,
+ abitset_disjoint_p,
+ abitset_equal_p,
+ abitset_not,
+ abitset_subset_p,
+ abitset_and,
+ abitset_and_cmp,
+ abitset_andn,
+ abitset_andn_cmp,
+ abitset_or,
+ abitset_or_cmp,
+ abitset_xor,
+ abitset_xor_cmp,
+ abitset_and_or,
+ abitset_and_or_cmp,
+ abitset_andn_or,
+ abitset_andn_or_cmp,
+ abitset_or_and,
+ abitset_or_and_cmp,
+ abitset_list,
+ abitset_list_reverse,
+ NULL,
+ BITSET_ARRAY
+};
+
+
+size_t
+abitset_bytes (bitset_bindex n_bits)
+{
+ bitset_windex size;
+ size_t bytes;
+ size_t header_size = offsetof (union bitset_union, a.words);
+ struct bitset_align_struct { char a; union bitset_union b; };
+ size_t bitset_alignment = offsetof (struct bitset_align_struct, b);
+
+ size = ABITSET_N_WORDS (n_bits);
+ bytes = header_size + size * sizeof (bitset_word);
+
+ /* Align the size properly for a vector of abitset objects. */
+ if (header_size % bitset_alignment != 0
+ || sizeof (bitset_word) % bitset_alignment != 0)
+ {
+ bytes += bitset_alignment - 1;
+ bytes -= bytes % bitset_alignment;
+ }
+
+ return bytes;
+}
+
+
+bitset
+abitset_init (bitset bset, bitset_bindex n_bits)
+{
+ bitset_windex size;
+
+ size = ABITSET_N_WORDS (n_bits);
+ BITSET_NBITS_ (bset) = n_bits;
+
+ /* Use optimized routines if bitset fits within a single word.
+ There is probably little merit if using caching since
+ the small bitset will always fit in the cache. */
+ if (size == 1)
+ bset->b.vtable = &abitset_small_vtable;
+ else
+ bset->b.vtable = &abitset_vtable;
+
+ bset->b.cindex = 0;
+ bset->b.csize = size;
+ bset->b.cdata = ABITSET_WORDS (bset);
+ return bset;
+}
diff --git a/lib/abitset.h b/lib/abitset.h
new file mode 100644
index 0000000..a22c919
--- /dev/null
+++ b/lib/abitset.h
@@ -0,0 +1,28 @@
+/* Functions to support abitsets.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _ABITSET_H
+#define _ABITSET_H
+
+#include "bitset.h"
+
+extern size_t abitset_bytes (bitset_bindex);
+
+extern bitset abitset_init (bitset, bitset_bindex);
+
+#endif
diff --git a/lib/argmatch.c b/lib/argmatch.c
new file mode 100644
index 0000000..36d5845
--- /dev/null
+++ b/lib/argmatch.c
@@ -0,0 +1,281 @@
+/* argmatch.c -- find a match for a string in an array
+
+ Copyright (C) 1990, 1998, 1999, 2001, 2002, 2003, 2004, 2005 Free
+ Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by David MacKenzie <djm@ai.mit.edu>
+ Modified by Akim Demaille <demaille@inf.enst.fr> */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* Specification. */
+#include "argmatch.h"
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+#include "error.h"
+#include "exit.h"
+#include "quotearg.h"
+#include "quote.h"
+
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
+
+/* When reporting an invalid argument, show nonprinting characters
+ by using the quoting style ARGMATCH_QUOTING_STYLE. Do not use
+ literal_quoting_style. */
+#ifndef ARGMATCH_QUOTING_STYLE
+# define ARGMATCH_QUOTING_STYLE locale_quoting_style
+#endif
+
+/* Non failing version of argmatch call this function after failing. */
+#ifndef ARGMATCH_DIE
+# include "exitfail.h"
+# define ARGMATCH_DIE exit (exit_failure)
+#endif
+
+#ifdef ARGMATCH_DIE_DECL
+ARGMATCH_DIE_DECL;
+#endif
+
+static void
+__argmatch_die (void)
+{
+ ARGMATCH_DIE;
+}
+
+/* Used by XARGMATCH and XARGCASEMATCH. See description in argmatch.h.
+ Default to __argmatch_die, but allow caller to change this at run-time. */
+argmatch_exit_fn argmatch_die = __argmatch_die;
+
+
+/* If ARG is an unambiguous match for an element of the
+ NULL-terminated array ARGLIST, return the index in ARGLIST
+ of the matched element, else -1 if it does not match any element
+ or -2 if it is ambiguous (is a prefix of more than one element).
+
+ If VALLIST is none null, use it to resolve ambiguities limited to
+ synonyms, i.e., for
+ "yes", "yop" -> 0
+ "no", "nope" -> 1
+ "y" is a valid argument, for `0', and "n" for `1'. */
+
+ptrdiff_t
+argmatch (const char *arg, const char *const *arglist,
+ const char *vallist, size_t valsize)
+{
+ size_t i; /* Temporary index in ARGLIST. */
+ size_t arglen; /* Length of ARG. */
+ ptrdiff_t matchind = -1; /* Index of first nonexact match. */
+ bool ambiguous = false; /* If true, multiple nonexact match(es). */
+
+ arglen = strlen (arg);
+
+ /* Test all elements for either exact match or abbreviated matches. */
+ for (i = 0; arglist[i]; i++)
+ {
+ if (!strncmp (arglist[i], arg, arglen))
+ {
+ if (strlen (arglist[i]) == arglen)
+ /* Exact match found. */
+ return i;
+ else if (matchind == -1)
+ /* First nonexact match found. */
+ matchind = i;
+ else
+ {
+ /* Second nonexact match found. */
+ if (vallist == NULL
+ || memcmp (vallist + valsize * matchind,
+ vallist + valsize * i, valsize))
+ {
+ /* There is a real ambiguity, or we could not
+ disambiguate. */
+ ambiguous = true;
+ }
+ }
+ }
+ }
+ if (ambiguous)
+ return -2;
+ else
+ return matchind;
+}
+
+/* Error reporting for argmatch.
+ CONTEXT is a description of the type of entity that was being matched.
+ VALUE is the invalid value that was given.
+ PROBLEM is the return value from argmatch. */
+
+void
+argmatch_invalid (const char *context, const char *value, ptrdiff_t problem)
+{
+ char const *format = (problem == -1
+ ? _("invalid argument %s for %s")
+ : _("ambiguous argument %s for %s"));
+
+ error (0, 0, format, quotearg_n_style (0, ARGMATCH_QUOTING_STYLE, value),
+ quote_n (1, context));
+}
+
+/* List the valid arguments for argmatch.
+ ARGLIST is the same as in argmatch.
+ VALLIST is a pointer to an array of values.
+ VALSIZE is the size of the elements of VALLIST */
+void
+argmatch_valid (const char *const *arglist,
+ const char *vallist, size_t valsize)
+{
+ size_t i;
+ const char *last_val = NULL;
+
+ /* We try to put synonyms on the same line. The assumption is that
+ synonyms follow each other */
+ fprintf (stderr, _("Valid arguments are:"));
+ for (i = 0; arglist[i]; i++)
+ if ((i == 0)
+ || memcmp (last_val, vallist + valsize * i, valsize))
+ {
+ fprintf (stderr, "\n - `%s'", arglist[i]);
+ last_val = vallist + valsize * i;
+ }
+ else
+ {
+ fprintf (stderr, ", `%s'", arglist[i]);
+ }
+ putc ('\n', stderr);
+}
+
+/* Never failing versions of the previous functions.
+
+ CONTEXT is the context for which argmatch is called (e.g.,
+ "--version-control", or "$VERSION_CONTROL" etc.). Upon failure,
+ calls the (supposed never to return) function EXIT_FN. */
+
+ptrdiff_t
+__xargmatch_internal (const char *context,
+ const char *arg, const char *const *arglist,
+ const char *vallist, size_t valsize,
+ argmatch_exit_fn exit_fn)
+{
+ ptrdiff_t res = argmatch (arg, arglist, vallist, valsize);
+ if (res >= 0)
+ /* Success. */
+ return res;
+
+ /* We failed. Explain why. */
+ argmatch_invalid (context, arg, res);
+ argmatch_valid (arglist, vallist, valsize);
+ (*exit_fn) ();
+
+ return -1; /* To please the compilers. */
+}
+
+/* Look for VALUE in VALLIST, an array of objects of size VALSIZE and
+ return the first corresponding argument in ARGLIST */
+const char *
+argmatch_to_argument (const char *value,
+ const char *const *arglist,
+ const char *vallist, size_t valsize)
+{
+ size_t i;
+
+ for (i = 0; arglist[i]; i++)
+ if (!memcmp (value, vallist + valsize * i, valsize))
+ return arglist[i];
+ return NULL;
+}
+
+#ifdef TEST
+/*
+ * Based on "getversion.c" by David MacKenzie <djm@gnu.ai.mit.edu>
+ */
+char *program_name;
+
+/* When to make backup files. */
+enum backup_type
+{
+ /* Never make backups. */
+ no_backups,
+
+ /* Make simple backups of every file. */
+ simple_backups,
+
+ /* Make numbered backups of files that already have numbered backups,
+ and simple backups of the others. */
+ numbered_existing_backups,
+
+ /* Make numbered backups of every file. */
+ numbered_backups
+};
+
+/* Two tables describing arguments (keys) and their corresponding
+ values */
+static const char *const backup_args[] =
+{
+ "no", "none", "off",
+ "simple", "never",
+ "existing", "nil",
+ "numbered", "t",
+ 0
+};
+
+static const enum backup_type backup_vals[] =
+{
+ no_backups, no_backups, no_backups,
+ simple_backups, simple_backups,
+ numbered_existing_backups, numbered_existing_backups,
+ numbered_backups, numbered_backups
+};
+
+int
+main (int argc, const char *const *argv)
+{
+ const char *cp;
+ enum backup_type backup_type = no_backups;
+
+ program_name = (char *) argv[0];
+
+ if (argc > 2)
+ {
+ fprintf (stderr, "Usage: %s [VERSION_CONTROL]\n", program_name);
+ exit (1);
+ }
+
+ if ((cp = getenv ("VERSION_CONTROL")))
+ backup_type = XARGMATCH ("$VERSION_CONTROL", cp,
+ backup_args, backup_vals);
+
+ if (argc == 2)
+ backup_type = XARGMATCH (program_name, argv[1],
+ backup_args, backup_vals);
+
+ printf ("The version control is `%s'\n",
+ ARGMATCH_TO_ARGUMENT (backup_type, backup_args, backup_vals));
+
+ return 0;
+}
+#endif
diff --git a/lib/argmatch.h b/lib/argmatch.h
new file mode 100644
index 0000000..f2dfe59
--- /dev/null
+++ b/lib/argmatch.h
@@ -0,0 +1,103 @@
+/* argmatch.h -- definitions and prototypes for argmatch.c
+
+ Copyright (C) 1990, 1998, 1999, 2001, 2002, 2004, 2005 Free Software
+ Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by David MacKenzie <djm@ai.mit.edu>
+ Modified by Akim Demaille <demaille@inf.enst.fr> */
+
+#ifndef ARGMATCH_H_
+# define ARGMATCH_H_ 1
+
+# include <stddef.h>
+
+# include "verify.h"
+
+# define ARRAY_CARDINALITY(Array) (sizeof (Array) / sizeof *(Array))
+
+/* Assert there are as many real arguments as there are values
+ (argument list ends with a NULL guard). */
+
+# define ARGMATCH_VERIFY(Arglist, Vallist) \
+ verify (ARRAY_CARDINALITY (Arglist) == ARRAY_CARDINALITY (Vallist) + 1)
+
+/* Return the index of the element of ARGLIST (NULL terminated) that
+ matches with ARG. If VALLIST is not NULL, then use it to resolve
+ false ambiguities (i.e., different matches of ARG but corresponding
+ to the same values in VALLIST). */
+
+ptrdiff_t argmatch (char const *arg, char const *const *arglist,
+ char const *vallist, size_t valsize);
+
+# define ARGMATCH(Arg, Arglist, Vallist) \
+ argmatch (Arg, Arglist, (char const *) (Vallist), sizeof *(Vallist))
+
+/* xargmatch calls this function when it fails. This function should not
+ return. By default, this is a function that calls ARGMATCH_DIE which
+ in turn defaults to `exit (exit_failure)'. */
+typedef void (*argmatch_exit_fn) (void);
+extern argmatch_exit_fn argmatch_die;
+
+/* Report on stderr why argmatch failed. Report correct values. */
+
+void argmatch_invalid (char const *context, char const *value,
+ ptrdiff_t problem);
+
+/* Left for compatibility with the old name invalid_arg */
+
+# define invalid_arg(Context, Value, Problem) \
+ argmatch_invalid (Context, Value, Problem)
+
+
+
+/* Report on stderr the list of possible arguments. */
+
+void argmatch_valid (char const *const *arglist,
+ char const *vallist, size_t valsize);
+
+# define ARGMATCH_VALID(Arglist, Vallist) \
+ argmatch_valid (Arglist, (char const *) (Vallist), sizeof *(Vallist))
+
+
+
+/* Same as argmatch, but upon failure, reports a explanation on the
+ failure, and exits using the function EXIT_FN. */
+
+ptrdiff_t __xargmatch_internal (char const *context,
+ char const *arg, char const *const *arglist,
+ char const *vallist, size_t valsize,
+ argmatch_exit_fn exit_fn);
+
+/* Programmer friendly interface to __xargmatch_internal. */
+
+# define XARGMATCH(Context, Arg, Arglist, Vallist) \
+ ((Vallist) [__xargmatch_internal (Context, Arg, Arglist, \
+ (char const *) (Vallist), \
+ sizeof *(Vallist), \
+ argmatch_die)])
+
+/* Convert a value into a corresponding argument. */
+
+char const *argmatch_to_argument (char const *value,
+ char const *const *arglist,
+ char const *vallist, size_t valsize);
+
+# define ARGMATCH_TO_ARGUMENT(Value, Arglist, Vallist) \
+ argmatch_to_argument (Value, Arglist, \
+ (char const *) (Vallist), sizeof *(Vallist))
+
+#endif /* ARGMATCH_H_ */
diff --git a/lib/basename.c b/lib/basename.c
new file mode 100644
index 0000000..5cc97cd
--- /dev/null
+++ b/lib/basename.c
@@ -0,0 +1,79 @@
+/* basename.c -- return the last element in a file name
+
+ Copyright (C) 1990, 1998, 1999, 2000, 2001, 2003, 2004, 2005 Free
+ Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "dirname.h"
+#include <string.h>
+
+/* In general, we can't use the builtin `basename' function if available,
+ since it has different meanings in different environments.
+ In some environments the builtin `basename' modifies its argument.
+
+ Return the address of the last file name component of NAME. If
+ NAME has no file name components because it is all slashes, return
+ NAME if it is empty, the address of its last slash otherwise. */
+
+char *
+base_name (char const *name)
+{
+ char const *base = name + FILE_SYSTEM_PREFIX_LEN (name);
+ char const *p;
+
+ for (p = base; *p; p++)
+ {
+ if (ISSLASH (*p))
+ {
+ /* Treat multiple adjacent slashes like a single slash. */
+ do p++;
+ while (ISSLASH (*p));
+
+ /* If the file name ends in slash, use the trailing slash as
+ the basename if no non-slashes have been found. */
+ if (! *p)
+ {
+ if (ISSLASH (*base))
+ base = p - 1;
+ break;
+ }
+
+ /* *P is a non-slash preceded by a slash. */
+ base = p;
+ }
+ }
+
+ return (char *) base;
+}
+
+/* Return the length of of the basename NAME. Typically NAME is the
+ value returned by base_name. Act like strlen (NAME), except omit
+ redundant trailing slashes. */
+
+size_t
+base_len (char const *name)
+{
+ size_t len;
+
+ for (len = strlen (name); 1 < len && ISSLASH (name[len - 1]); len--)
+ continue;
+
+ return len;
+}
diff --git a/lib/bbitset.h b/lib/bbitset.h
new file mode 100644
index 0000000..956fc5c
--- /dev/null
+++ b/lib/bbitset.h
@@ -0,0 +1,302 @@
+/* Base bitset stuff.
+ Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _BBITSET_H
+#define _BBITSET_H
+
+#include "libiberty.h"
+
+#include <stdbool.h>
+#include <limits.h>
+#include <stddef.h>
+
+/* Currently we support five flavours of bitsets:
+ BITSET_ARRAY: Array of bits (fixed size, fast for dense bitsets).
+ Memory for bit array and bitset structure allocated
+ contiguously.
+ BITSET_LIST: Linked list of arrays of bits (variable size, least storage
+ for large very sparse sets).
+ BITSET_TABLE: Expandable table of pointers to arrays of bits
+ (variable size, less storage for large sparse sets).
+ Faster than BITSET_LIST for random access.
+ BITSET_VARRAY: Variable array of bits (variable size, fast for
+ dense bitsets).
+ BITSET_STATS: Wrapper bitset for internal use only. Used for gathering
+ statistics and/or better run-time checking.
+*/
+enum bitset_type {BITSET_ARRAY, BITSET_LIST, BITSET_TABLE, BITSET_VARRAY,
+ BITSET_TYPE_NUM, BITSET_STATS};
+#define BITSET_TYPE_NAMES {"abitset", "lbitset", "ebitset", "vbitset"}
+
+extern const char * const bitset_type_names[];
+
+enum bitset_alloc_type {BITSET_MALLOC, BITSET_OBALLOC};
+
+/* Data type used to store a word of bits. */
+typedef unsigned long int bitset_word;
+#define BITSET_WORD_BITS ((unsigned int) (CHAR_BIT * sizeof (bitset_word)))
+
+/* Bit index. In theory we might need a type wider than size_t, but
+ in practice we lose at most a factor of CHAR_BIT by going with
+ size_t, and that is good enough. If this type is changed to be
+ wider than size_t, the code needs to be modified to check for
+ overflow when converting bit counts to byte or word counts.
+ The bit and word index types must be unsigned. */
+typedef size_t bitset_bindex;
+
+/* Word index. */
+typedef size_t bitset_windex;
+
+/* Maximum values for commonly-used unsigned types. BITSET_SIZE_MAX
+ always equals SIZE_MAX, but some older systems lack SIZE_MAX. */
+#define BITSET_BINDEX_MAX ((bitset_bindex) -1)
+
+/* Limit max word index to the maximum value of a signed integer
+ to simplify cache disabling. */
+#define BITSET_WINDEX_MAX (((bitset_windex) -1) >> 1)
+#define BITSET_SIZE_MAX ((size_t) -1)
+
+#define BITSET_MSB ((bitset_word) 1 << (BITSET_WORD_BITS - 1))
+
+#define BITSET_LIST_SIZE 1024
+
+enum bitset_ops {BITSET_OP_ZERO, BITSET_OP_ONES,
+ BITSET_OP_COPY, BITSET_OP_NOT,
+ BITSET_OP_EMPTY_P, BITSET_OP_EQUAL_P,
+ BITSET_OP_SUBSET_P, BITSET_OP_DISJOINT_P,
+ BITSET_OP_AND, BITSET_OP_OR, BITSET_OP_XOR, BITSET_OP_ANDN,
+ BITSET_OP_OR_AND, BITSET_OP_AND_OR, BITSET_OP_ANDN_OR};
+
+struct bbitset_struct
+{
+ const struct bitset_vtable *vtable;
+ bitset_windex cindex; /* Cache word index. */
+ bitset_windex csize; /* Cache size in words. */
+ bitset_word *cdata; /* Cache data pointer. */
+ bitset_bindex n_bits; /* Number of bits. */
+ /* Perhaps we could sacrifice another word to indicate
+ that the bitset is known to be zero, that a bit has been set
+ in the cache, and that a bit has been cleared in the cache.
+ This would speed up some of the searches but slightly slow down
+ bit set/reset operations of cached bits. */
+};
+
+
+typedef union bitset_union *bitset;
+
+
+/* Private accessor macros to bitset structure. */
+#define BITSET_VTABLE_(SRC) (SRC)->b.vtable
+#define BITSET_CINDEX_(SRC) (SRC)->b.cindex
+#define BITSET_CDATA_(SRC) (SRC)->b.cdata
+#define BITSET_CSIZE_(SRC) (SRC)->b.csize
+#define BITSET_NBITS_(SRC) (SRC)->b.n_bits
+
+
+/* The contents of this structure should be considered private. */
+struct bitset_vtable
+{
+ void (*set) (bitset, bitset_bindex);
+ void (*reset) (bitset, bitset_bindex);
+ bool (*toggle) (bitset, bitset_bindex);
+ bool (*test) (bitset, bitset_bindex);
+ bitset_bindex (*resize) (bitset, bitset_bindex);
+ bitset_bindex (*size) (bitset);
+ bitset_bindex (*count) (bitset);
+
+ bool (*empty_p) (bitset);
+ void (*ones) (bitset);
+ void (*zero) (bitset);
+
+ void (*copy) (bitset, bitset);
+ bool (*disjoint_p) (bitset, bitset);
+ bool (*equal_p) (bitset, bitset);
+ void (*not_) (bitset, bitset);
+ bool (*subset_p) (bitset, bitset);
+
+ void (*and_) (bitset, bitset, bitset);
+ bool (*and_cmp) (bitset, bitset, bitset);
+ void (*andn) (bitset, bitset, bitset);
+ bool (*andn_cmp) (bitset, bitset, bitset);
+ void (*or_) (bitset, bitset, bitset);
+ bool (*or_cmp) (bitset, bitset, bitset);
+ void (*xor_) (bitset, bitset, bitset);
+ bool (*xor_cmp) (bitset, bitset, bitset);
+
+ void (*and_or) (bitset, bitset, bitset, bitset);
+ bool (*and_or_cmp) (bitset, bitset, bitset, bitset);
+ void (*andn_or) (bitset, bitset, bitset, bitset);
+ bool (*andn_or_cmp) (bitset, bitset, bitset, bitset);
+ void (*or_and) (bitset, bitset, bitset, bitset);
+ bool (*or_and_cmp) (bitset, bitset, bitset, bitset);
+
+ bitset_bindex (*list) (bitset, bitset_bindex *, bitset_bindex,
+ bitset_bindex *);
+ bitset_bindex (*list_reverse) (bitset, bitset_bindex *, bitset_bindex,
+ bitset_bindex *);
+ void (*free) (bitset);
+ enum bitset_type type;
+};
+
+#define BITSET_COMPATIBLE_(BSET1, BSET2) \
+((BSET1)->b.vtable == (BSET2)->b.vtable)
+
+#define BITSET_CHECK2_(DST, SRC) \
+if (!BITSET_COMPATIBLE_ (DST, SRC)) abort ();
+
+#define BITSET_CHECK3_(DST, SRC1, SRC2) \
+if (!BITSET_COMPATIBLE_ (DST, SRC1) \
+ || !BITSET_COMPATIBLE_ (DST, SRC2)) abort ();
+
+#define BITSET_CHECK4_(DST, SRC1, SRC2, SRC3) \
+if (!BITSET_COMPATIBLE_ (DST, SRC1) || !BITSET_COMPATIBLE_ (DST, SRC2) \
+ || !BITSET_COMPATIBLE_ (DST, SRC3)) abort ();
+
+
+/* Redefine number of bits in bitset DST. */
+#define BITSET_RESIZE_(DST, SIZE) (DST)->b.vtable->resize (DST, SIZE)
+
+/* Return size in bits of bitset SRC. */
+#define BITSET_SIZE_(SRC) (SRC)->b.vtable->size (SRC)
+
+/* Return number of bits set in bitset SRC. */
+#define BITSET_COUNT_(SRC) (SRC)->b.vtable->count (SRC)
+
+/* Return type of bitset SRC. */
+#define BITSET_TYPE_(DST) (DST)->b.vtable->type
+
+/* Set bit BITNO in bitset DST. */
+#define BITSET_SET_(DST, BITNO) (DST)->b.vtable->set (DST, BITNO)
+
+/* Reset bit BITNO in bitset DST. */
+#define BITSET_RESET_(DST, BITNO) (DST)->b.vtable->reset (DST, BITNO)
+
+/* Toggle bit BITNO in bitset DST. */
+#define BITSET_TOGGLE_(DST, BITNO) (DST)->b.vtable->toggle (DST, BITNO)
+
+/* Return non-zero if bit BITNO in bitset SRC is set. */
+#define BITSET_TEST_(SRC, BITNO) (SRC)->b.vtable->test (SRC, BITNO)
+
+/* Free bitset SRC. */
+#define BITSET_FREE_(SRC)\
+ ((SRC)->b.vtable->free ? (SRC)->b.vtable->free (SRC) :(void)0)
+
+
+/* Return SRC == 0. */
+#define BITSET_EMPTY_P_(SRC) (SRC)->b.vtable->empty_p (SRC)
+
+/* DST = ~0. */
+#define BITSET_ONES_(DST) (DST)->b.vtable->ones (DST)
+
+/* DST = 0. */
+#define BITSET_ZERO_(DST) (DST)->b.vtable->zero (DST)
+
+
+
+/* DST = SRC. */
+#define BITSET_COPY_(DST, SRC) (SRC)->b.vtable->copy (DST, SRC)
+
+/* Return DST & SRC == 0. */
+#define BITSET_DISJOINT_P_(DST, SRC) (SRC)->b.vtable->disjoint_p (DST, SRC)
+
+/* Return DST == SRC. */
+#define BITSET_EQUAL_P_(DST, SRC) (SRC)->b.vtable->equal_p (DST, SRC)
+
+/* DST = ~SRC. */
+#define BITSET_NOT_(DST, SRC) (SRC)->b.vtable->not_ (DST, SRC)
+
+/* Return DST == DST | SRC. */
+#define BITSET_SUBSET_P_(DST, SRC) (SRC)->b.vtable->subset_p (DST, SRC)
+
+
+/* DST = SRC1 & SRC2. */
+#define BITSET_AND_(DST, SRC1, SRC2) (SRC1)->b.vtable->and_ (DST, SRC1, SRC2)
+#define BITSET_AND_CMP_(DST, SRC1, SRC2) (SRC1)->b.vtable->and_cmp (DST, SRC1, SRC2)
+
+/* DST = SRC1 & ~SRC2. */
+#define BITSET_ANDN_(DST, SRC1, SRC2) (SRC1)->b.vtable->andn (DST, SRC1, SRC2)
+#define BITSET_ANDN_CMP_(DST, SRC1, SRC2) (SRC1)->b.vtable->andn_cmp (DST, SRC1, SRC2)
+
+/* DST = SRC1 | SRC2. */
+#define BITSET_OR_(DST, SRC1, SRC2) (SRC1)->b.vtable->or_ (DST, SRC1, SRC2)
+#define BITSET_OR_CMP_(DST, SRC1, SRC2) (SRC1)->b.vtable->or_cmp (DST, SRC1, SRC2)
+
+/* DST = SRC1 ^ SRC2. */
+#define BITSET_XOR_(DST, SRC1, SRC2) (SRC1)->b.vtable->xor_ (DST, SRC1, SRC2)
+#define BITSET_XOR_CMP_(DST, SRC1, SRC2) (SRC1)->b.vtable->xor_cmp (DST, SRC1, SRC2)
+
+
+
+/* DST = (SRC1 & SRC2) | SRC3. Return non-zero if
+ DST != (SRC1 & SRC2) | SRC3. */
+#define BITSET_AND_OR_(DST, SRC1, SRC2, SRC3) \
+ (SRC1)->b.vtable->and_or (DST, SRC1, SRC2, SRC3)
+#define BITSET_AND_OR_CMP_(DST, SRC1, SRC2, SRC3) \
+ (SRC1)->b.vtable->and_or_cmp (DST, SRC1, SRC2, SRC3)
+
+/* DST = (SRC1 & ~SRC2) | SRC3. Return non-zero if
+ DST != (SRC1 & ~SRC2) | SRC3. */
+#define BITSET_ANDN_OR_(DST, SRC1, SRC2, SRC3) \
+ (SRC1)->b.vtable->andn_or (DST, SRC1, SRC2, SRC3)
+#define BITSET_ANDN_OR_CMP_(DST, SRC1, SRC2, SRC3) \
+ (SRC1)->b.vtable->andn_or_cmp (DST, SRC1, SRC2, SRC3)
+
+/* DST = (SRC1 | SRC2) & SRC3. Return non-zero if
+ DST != (SRC1 | SRC2) & SRC3. */
+#define BITSET_OR_AND_(DST, SRC1, SRC2, SRC3) \
+ (SRC1)->b.vtable->or_and (DST, SRC1, SRC2, SRC3)
+#define BITSET_OR_AND_CMP_(DST, SRC1, SRC2, SRC3) \
+ (SRC1)->b.vtable->or_and_cmp (DST, SRC1, SRC2, SRC3)
+
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT. Return with actual number of bits found and with *NEXT
+ indicating where search stopped. */
+#define BITSET_LIST_(BSET, LIST, NUM, NEXT) \
+ (BSET)->b.vtable->list (BSET, LIST, NUM, NEXT)
+
+/* Find reverse list of up to NUM bits set in BSET starting from and
+ including NEXT. Return with actual number of bits found and with
+ *NEXT indicating where search stopped. */
+#define BITSET_LIST_REVERSE_(BSET, LIST, NUM, NEXT) \
+ (BSET)->b.vtable->list_reverse (BSET, LIST, NUM, NEXT)
+
+
+/* Private functions for bitset implementations. */
+
+extern bool bitset_toggle_ (bitset, bitset_bindex);
+
+extern bitset_bindex bitset_count_ (bitset);
+
+extern bitset_bindex bitset_size_ (bitset);
+
+extern bool bitset_copy_ (bitset, bitset);
+
+extern void bitset_and_or_ (bitset, bitset, bitset, bitset);
+
+extern bool bitset_and_or_cmp_ (bitset, bitset, bitset, bitset);
+
+extern void bitset_andn_or_ (bitset, bitset, bitset, bitset);
+
+extern bool bitset_andn_or_cmp_ (bitset, bitset, bitset, bitset);
+
+extern void bitset_or_and_ (bitset, bitset, bitset, bitset);
+
+extern bool bitset_or_and_cmp_ (bitset, bitset, bitset, bitset);
+
+#endif /* _BBITSET_H */
diff --git a/lib/bitset.c b/lib/bitset.c
new file mode 100644
index 0000000..2924567
--- /dev/null
+++ b/lib/bitset.c
@@ -0,0 +1,505 @@
+/* General bitsets.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "bitset.h"
+#include "abitset.h"
+#include "lbitset.h"
+#include "ebitset.h"
+#include "vbitset.h"
+#include "bitset_stats.h"
+#include "obstack.h"
+
+const char * const bitset_type_names[] = BITSET_TYPE_NAMES;
+
+
+/* Return number of bytes required to create a N_BIT bitset
+ of TYPE. The bitset may grow to require more bytes than this. */
+size_t
+bitset_bytes (enum bitset_type type, bitset_bindex n_bits)
+{
+ size_t bytes;
+
+ if (bitset_stats_enabled)
+ return bitset_stats_bytes ();
+
+ switch (type)
+ {
+ default:
+ abort ();
+
+ case BITSET_ARRAY:
+ bytes = abitset_bytes (n_bits);
+ break;
+
+ case BITSET_LIST:
+ bytes = lbitset_bytes (n_bits);
+ break;
+
+ case BITSET_TABLE:
+ bytes = ebitset_bytes (n_bits);
+ break;
+
+ case BITSET_VARRAY:
+ bytes = vbitset_bytes (n_bits);
+ break;
+ }
+
+ return bytes;
+}
+
+
+/* Initialise bitset BSET of TYPE for N_BITS. */
+bitset
+bitset_init (bitset bset, bitset_bindex n_bits, enum bitset_type type)
+{
+ if (bitset_stats_enabled)
+ return bitset_stats_init (bset, n_bits, type);
+
+ switch (type)
+ {
+ default:
+ abort ();
+
+ case BITSET_ARRAY:
+ return abitset_init (bset, n_bits);
+
+ case BITSET_LIST:
+ return lbitset_init (bset, n_bits);
+
+ case BITSET_TABLE:
+ return ebitset_init (bset, n_bits);
+
+ case BITSET_VARRAY:
+ return vbitset_init (bset, n_bits);
+ }
+}
+
+
+/* Select a bitset type for a set of N_BITS and with attribute hints
+ specified by ATTR. For variable size bitsets, N_BITS is only a
+ hint and may be zero. */
+enum bitset_type
+bitset_type_choose (bitset_bindex n_bits ATTRIBUTE_UNUSED, unsigned int attr)
+{
+ /* Check attributes. */
+ if (attr & BITSET_FIXED && attr & BITSET_VARIABLE)
+ abort ();
+ if (attr & BITSET_SPARSE && attr & BITSET_DENSE)
+ abort ();
+
+ /* Choose the type of bitset. Note that sometimes we will be asked
+ for a zero length fixed size bitset. */
+
+
+ /* If no attributes selected, choose a good compromise. */
+ if (!attr)
+ return BITSET_VARRAY;
+
+ if (attr & BITSET_SPARSE)
+ return BITSET_LIST;
+
+ if (attr & BITSET_FIXED)
+ return BITSET_ARRAY;
+
+ if (attr & BITSET_GREEDY)
+ return BITSET_TABLE;
+
+ return BITSET_VARRAY;
+}
+
+
+/* Create a bitset of N_BITS of type TYPE. */
+bitset
+bitset_alloc (bitset_bindex n_bits, enum bitset_type type)
+{
+ size_t bytes;
+ bitset bset;
+
+ bytes = bitset_bytes (type, n_bits);
+
+ bset = xcalloc (1, bytes);
+
+ /* The cache is disabled until some elements are allocated. If we
+ have variable length arrays, then we may need to allocate a dummy
+ element. */
+
+ return bitset_init (bset, n_bits, type);
+}
+
+
+/* Create a bitset of N_BITS of type TYPE. */
+bitset
+bitset_obstack_alloc (struct obstack *bobstack,
+ bitset_bindex n_bits, enum bitset_type type)
+{
+ size_t bytes;
+ bitset bset;
+
+ bytes = bitset_bytes (type, n_bits);
+
+ bset = obstack_alloc (bobstack, bytes);
+ memset (bset, 0, bytes);
+
+ return bitset_init (bset, n_bits, type);
+}
+
+
+/* Create a bitset of N_BITS and with attribute hints specified by
+ ATTR. */
+bitset
+bitset_create (bitset_bindex n_bits, unsigned int attr)
+{
+ enum bitset_type type;
+
+ type = bitset_type_choose (n_bits, attr);
+
+ return bitset_alloc (n_bits, type);
+}
+
+
+/* Free bitset BSET. */
+void
+bitset_free (bitset bset)
+{
+ BITSET_FREE_ (bset);
+ free (bset);
+}
+
+
+/* Free bitset BSET allocated on obstack. */
+void
+bitset_obstack_free (bitset bset)
+{
+ BITSET_FREE_ (bset);
+}
+
+
+/* Return bitset type. */
+enum bitset_type
+bitset_type_get (bitset bset)
+{
+ enum bitset_type type;
+
+ type = BITSET_TYPE_ (bset);
+ if (type != BITSET_STATS)
+ return type;
+
+ return bitset_stats_type_get (bset);
+}
+
+
+/* Return name of bitset type. */
+const char *
+bitset_type_name_get (bitset bset)
+{
+ enum bitset_type type;
+
+ type = bitset_type_get (bset);
+
+ return bitset_type_names[type];
+}
+
+
+/* Find next bit set in SRC starting from and including BITNO.
+ Return BITSET_BINDEX_MAX if SRC empty. */
+bitset_bindex
+bitset_next (bitset src, bitset_bindex bitno)
+{
+ bitset_bindex val;
+ bitset_bindex next = bitno;
+
+ if (!bitset_list (src, &val, 1, &next))
+ return BITSET_BINDEX_MAX;
+ return val;
+}
+
+
+/* Return true if both bitsets are of the same type and size. */
+extern bool
+bitset_compatible_p (bitset bset1, bitset bset2)
+{
+ return BITSET_COMPATIBLE_ (bset1, bset2);
+}
+
+
+/* Find previous bit set in SRC starting from and including BITNO.
+ Return BITSET_BINDEX_MAX if SRC empty. */
+bitset_bindex
+bitset_prev (bitset src, bitset_bindex bitno)
+{
+ bitset_bindex val;
+ bitset_bindex next = bitno;
+
+ if (!bitset_list_reverse (src, &val, 1, &next))
+ return BITSET_BINDEX_MAX;
+ return val;
+}
+
+
+/* Find first set bit. */
+bitset_bindex
+bitset_first (bitset src)
+{
+ return bitset_next (src, 0);
+}
+
+
+/* Find last set bit. */
+bitset_bindex
+bitset_last (bitset src)
+{
+ return bitset_prev (src, 0);
+}
+
+
+/* Is BITNO in SRC the only set bit? */
+bool
+bitset_only_set_p (bitset src, bitset_bindex bitno)
+{
+ bitset_bindex val[2];
+ bitset_bindex next = 0;
+
+ if (bitset_list (src, val, 2, &next) != 1)
+ return false;
+ return val[0] == bitno;
+}
+
+
+/* Print contents of bitset BSET to FILE. */
+static void
+bitset_print (FILE *file, bitset bset, bool verbose)
+{
+ unsigned int pos;
+ bitset_bindex i;
+ bitset_iterator iter;
+
+ if (verbose)
+ fprintf (file, "n_bits = %lu, set = {",
+ (unsigned long int) bitset_size (bset));
+
+ pos = 30;
+ BITSET_FOR_EACH (iter, bset, i, 0)
+ {
+ if (pos > 70)
+ {
+ fprintf (file, "\n");
+ pos = 0;
+ }
+
+ fprintf (file, "%lu ", (unsigned long int) i);
+ pos += 1 + (i >= 10) + (i >= 100);
+ };
+
+ if (verbose)
+ fprintf (file, "}\n");
+}
+
+
+/* Dump bitset BSET to FILE. */
+void
+bitset_dump (FILE *file, bitset bset)
+{
+ bitset_print (file, bset, false);
+}
+
+
+/* Release memory associated with bitsets. */
+void
+bitset_release_memory (void)
+{
+ lbitset_release_memory ();
+ ebitset_release_memory ();
+}
+
+
+/* Toggle bit BITNO in bitset BSET and the new value of the bit. */
+bool
+bitset_toggle_ (bitset bset, bitset_bindex bitno)
+{
+ /* This routine is for completeness. It could be optimized if
+ required. */
+ if (bitset_test (bset, bitno))
+ {
+ bitset_reset (bset, bitno);
+ return false;
+ }
+ else
+ {
+ bitset_set (bset, bitno);
+ return true;
+ }
+}
+
+
+/* Return number of bits in bitset SRC. */
+bitset_bindex
+bitset_size_ (bitset src)
+{
+ return BITSET_NBITS_ (src);
+}
+
+
+/* Return number of bits set in bitset SRC. */
+bitset_bindex
+bitset_count_ (bitset src)
+{
+ bitset_bindex list[BITSET_LIST_SIZE];
+ bitset_bindex next;
+ bitset_bindex num;
+ bitset_bindex count;
+
+ /* This could be greatly sped up by adding a count method for each
+ bitset implementation that uses a direct technique (based on
+ masks) for counting the number of bits set in a word. */
+
+ next = 0;
+ for (count = 0; (num = bitset_list (src, list, BITSET_LIST_SIZE, &next));
+ count += num)
+ continue;
+
+ return count;
+}
+
+
+/* DST = SRC. Return true if DST != SRC.
+ This is a fallback for the case where SRC and DST are different
+ bitset types. */
+bool
+bitset_copy_ (bitset dst, bitset src)
+{
+ bitset_bindex i;
+ bitset_iterator iter;
+
+ /* Convert bitset types. We assume that the DST bitset
+ is large enough to hold the SRC bitset. */
+ bitset_zero (dst);
+ BITSET_FOR_EACH (iter, src, i, 0)
+ {
+ bitset_set (dst, i);
+ };
+
+ return true;
+}
+
+
+/* This is a fallback for implementations that do not support
+ four operand operations. */
+static inline bool
+bitset_op4_cmp (bitset dst, bitset src1, bitset src2, bitset src3,
+ enum bitset_ops op)
+{
+ bool changed = false;
+ bool stats_enabled_save;
+ bitset tmp;
+
+ /* Create temporary bitset. */
+ stats_enabled_save = bitset_stats_enabled;
+ bitset_stats_enabled = false;
+ tmp = bitset_alloc (0, bitset_type_get (dst));
+ bitset_stats_enabled = stats_enabled_save;
+
+ switch (op)
+ {
+ default:
+ abort ();
+
+ case BITSET_OP_OR_AND:
+ bitset_or (tmp, src1, src2);
+ changed = bitset_and_cmp (dst, src3, tmp);
+ break;
+
+ case BITSET_OP_AND_OR:
+ bitset_and (tmp, src1, src2);
+ changed = bitset_or_cmp (dst, src3, tmp);
+ break;
+
+ case BITSET_OP_ANDN_OR:
+ bitset_andn (tmp, src1, src2);
+ changed = bitset_or_cmp (dst, src3, tmp);
+ break;
+ }
+
+ bitset_free (tmp);
+ return changed;
+}
+
+
+/* DST = (SRC1 & SRC2) | SRC3. */
+void
+bitset_and_or_ (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_and_or_cmp_ (dst, src1, src2, src3);
+}
+
+
+/* DST = (SRC1 & SRC2) | SRC3. Return non-zero if
+ DST != (SRC1 & SRC2) | SRC3. */
+bool
+bitset_and_or_cmp_ (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ return bitset_op4_cmp (dst, src1, src2, src3, BITSET_OP_AND_OR);
+}
+
+
+/* DST = (SRC1 & ~SRC2) | SRC3. */
+void
+bitset_andn_or_ (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_andn_or_cmp_ (dst, src1, src2, src3);
+}
+
+
+/* DST = (SRC1 & ~SRC2) | SRC3. Return non-zero if
+ DST != (SRC1 & ~SRC2) | SRC3. */
+bool
+bitset_andn_or_cmp_ (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ return bitset_op4_cmp (dst, src1, src2, src3, BITSET_OP_ANDN_OR);
+}
+
+
+/* DST = (SRC1 | SRC2) & SRC3. */
+void
+bitset_or_and_ (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ bitset_or_and_cmp_ (dst, src1, src2, src3);
+}
+
+
+/* DST = (SRC1 | SRC2) & SRC3. Return non-zero if
+ DST != (SRC1 | SRC2) & SRC3. */
+bool
+bitset_or_and_cmp_ (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ return bitset_op4_cmp (dst, src1, src2, src3, BITSET_OP_OR_AND);
+}
+
+
+/* Function to be called from debugger to print bitset. */
+void
+debug_bitset (bitset bset)
+{
+ if (bset)
+ bitset_print (stderr, bset, true);
+}
diff --git a/lib/bitset.h b/lib/bitset.h
new file mode 100644
index 0000000..45c8818
--- /dev/null
+++ b/lib/bitset.h
@@ -0,0 +1,392 @@
+/* Generic bitsets.
+ Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _BITSET_H
+#define _BITSET_H
+
+/* This file is the public interface to the bitset abstract data type.
+ Only use the functions and macros defined in this file. */
+
+#include "bbitset.h"
+#include "obstack.h"
+#include <stdio.h>
+
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
+
+/* Attributes used to select a bitset implementation. */
+enum bitset_attr {BITSET_FIXED = 1, /* Bitset size fixed. */
+ BITSET_VARIABLE = 2, /* Bitset size variable. */
+ BITSET_DENSE = 4, /* Bitset dense. */
+ BITSET_SPARSE = 8, /* Bitset sparse. */
+ BITSET_FRUGAL = 16, /* Prefer most compact. */
+ BITSET_GREEDY = 32}; /* Prefer fastest at memory expense. */
+
+typedef unsigned int bitset_attrs;
+
+/* The contents of the union should be considered to be private.
+ While I would like to make this union opaque, it needs to be
+ visible for the inline bit set/test functions, and for delegation
+ to the proper implementation. */
+union bitset_union
+{
+ /* This must be the first member of every other structure that is a
+ member of this union. */
+ struct bbitset_struct b; /* Base bitset data. */
+
+ struct abitset_struct
+ {
+ struct bbitset_struct b;
+ bitset_word words[1]; /* The array of bits. */
+ } a;
+
+ struct ebitset_struct
+ {
+ struct bbitset_struct b;
+ bitset_windex size; /* Number of elements. */
+ struct ebitset_elt_struct **elts; /* Expanding array of ptrs to elts. */
+ } e;
+
+ struct lbitset_struct
+ {
+ struct bbitset_struct b;
+ struct lbitset_elt_struct *head; /* First element in linked list. */
+ struct lbitset_elt_struct *tail; /* Last element in linked list. */
+ } l;
+
+ struct bitset_stats_struct
+ {
+ struct bbitset_struct b;
+ bitset bset;
+ } s;
+
+ struct vbitset_struct
+ {
+ struct bbitset_struct b;
+ bitset_windex size; /* Allocated size of array. */
+ } v;
+
+};
+
+
+/* The contents of this structure should be considered private.
+ It is used for iterating over set bits. */
+typedef struct
+{
+ bitset_bindex list[BITSET_LIST_SIZE];
+ bitset_bindex next;
+ bitset_bindex num;
+ bitset_bindex i;
+} bitset_iterator;
+
+
+/* Return bytes required for bitset of desired type and size. */
+extern size_t bitset_bytes (enum bitset_type, bitset_bindex);
+
+/* Initialise a bitset with desired type and size. */
+extern bitset bitset_init (bitset, bitset_bindex, enum bitset_type);
+
+/* Select an implementation type based on the desired bitset size
+ and attributes. */
+extern enum bitset_type bitset_type_choose (bitset_bindex, bitset_attrs);
+
+/* Create a bitset of desired type and size. The bitset is zeroed. */
+extern bitset bitset_alloc (bitset_bindex, enum bitset_type);
+
+/* Free bitset. */
+extern void bitset_free (bitset);
+
+/* Create a bitset of desired type and size using an obstack. The
+ bitset is zeroed. */
+extern bitset bitset_obstack_alloc (struct obstack *bobstack,
+ bitset_bindex, enum bitset_type);
+
+/* Free bitset allocated on obstack. */
+extern void bitset_obstack_free (bitset);
+
+/* Create a bitset of desired size and attributes. The bitset is zeroed. */
+extern bitset bitset_create (bitset_bindex, bitset_attrs);
+
+/* Return bitset type. */
+extern enum bitset_type bitset_type_get (bitset);
+
+/* Return bitset type name. */
+extern const char *bitset_type_name_get (bitset);
+
+
+/* Set bit BITNO in bitset BSET. */
+static inline void
+bitset_set (bitset bset, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+ bitset_windex offset = windex - bset->b.cindex;
+
+ if (offset < bset->b.csize)
+ bset->b.cdata[offset] |= ((bitset_word) 1 << (bitno % BITSET_WORD_BITS));
+ else
+ BITSET_SET_ (bset, bitno);
+}
+
+
+/* Reset bit BITNO in bitset BSET. */
+static inline void
+bitset_reset (bitset bset, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+ bitset_windex offset = windex - bset->b.cindex;
+
+ if (offset < bset->b.csize)
+ bset->b.cdata[offset] &= ~((bitset_word) 1 << (bitno % BITSET_WORD_BITS));
+ else
+ BITSET_RESET_ (bset, bitno);
+}
+
+
+/* Test bit BITNO in bitset BSET. */
+static inline bool
+bitset_test (bitset bset, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+ bitset_windex offset = windex - bset->b.cindex;
+
+ if (offset < bset->b.csize)
+ return (bset->b.cdata[offset] >> (bitno % BITSET_WORD_BITS)) & 1;
+ else
+ return BITSET_TEST_ (bset, bitno);
+}
+
+
+/* Toggle bit BITNO in bitset BSET and return non-zero if now set. */
+#define bitset_toggle(bset, bitno) BITSET_TOGGLE_ (bset, bitno)
+
+/* Return size in bits of bitset SRC. */
+#define bitset_size(SRC) BITSET_SIZE_ (SRC)
+
+/* Change size of bitset. */
+extern void bitset_resize (bitset, bitset_bindex);
+
+/* Return number of bits set in bitset SRC. */
+#define bitset_count(SRC) BITSET_COUNT_ (SRC)
+
+
+/* Return SRC == 0. */
+#define bitset_empty_p(SRC) BITSET_EMPTY_P_ (SRC)
+
+/* DST = ~0. */
+#define bitset_ones(DST) BITSET_ONES_ (DST)
+
+/* DST = 0. */
+#define bitset_zero(DST) BITSET_ZERO_ (DST)
+
+
+
+/* DST = SRC. */
+#define bitset_copy(DST, SRC) BITSET_COPY_ (DST, SRC)
+
+/* Return DST & SRC == 0. */
+#define bitset_disjoint_p(DST, SRC) BITSET_DISJOINT_P_ (DST, SRC)
+
+/* Return DST == SRC. */
+#define bitset_equal_p(DST, SRC) BITSET_EQUAL_P_ (DST, SRC)
+
+/* DST = ~SRC. */
+#define bitset_not(DST, SRC) BITSET_NOT_ (DST, SRC)
+
+/* Return DST == DST | SRC. */
+#define bitset_subset_p(DST, SRC) BITSET_SUBSET_P_ (DST, SRC)
+
+
+
+/* DST = SRC1 & SRC2. */
+#define bitset_and(DST, SRC1, SRC2) BITSET_AND_ (DST, SRC1, SRC2)
+
+/* DST = SRC1 & SRC2. Return non-zero if DST != SRC1 & SRC2. */
+#define bitset_and_cmp(DST, SRC1, SRC2) BITSET_AND_CMP_ (DST, SRC1, SRC2)
+
+/* DST = SRC1 & ~SRC2. */
+#define bitset_andn(DST, SRC1, SRC2) BITSET_ANDN_ (DST, SRC1, SRC2)
+
+/* DST = SRC1 & ~SRC2. Return non-zero if DST != SRC1 & ~SRC2. */
+#define bitset_andn_cmp(DST, SRC1, SRC2) BITSET_ANDN_CMP_ (DST, SRC1, SRC2)
+
+/* DST = SRC1 | SRC2. */
+#define bitset_or(DST, SRC1, SRC2) BITSET_OR_ (DST, SRC1, SRC2)
+
+/* DST = SRC1 | SRC2. Return non-zero if DST != SRC1 | SRC2. */
+#define bitset_or_cmp(DST, SRC1, SRC2) BITSET_OR_CMP_ (DST, SRC1, SRC2)
+
+/* DST = SRC1 ^ SRC2. */
+#define bitset_xor(DST, SRC1, SRC2) BITSET_XOR_ (DST, SRC1, SRC2)
+
+/* DST = SRC1 ^ SRC2. Return non-zero if DST != SRC1 ^ SRC2. */
+#define bitset_xor_cmp(DST, SRC1, SRC2) BITSET_XOR_CMP_ (DST, SRC1, SRC2)
+
+
+
+/* DST = (SRC1 & SRC2) | SRC3. */
+#define bitset_and_or(DST, SRC1, SRC2, SRC3) \
+ BITSET_AND_OR_ (DST, SRC1, SRC2, SRC3)
+
+/* DST = (SRC1 & SRC2) | SRC3. Return non-zero if
+ DST != (SRC1 & SRC2) | SRC3. */
+#define bitset_and_or_cmp(DST, SRC1, SRC2, SRC3) \
+ BITSET_AND_OR_CMP_ (DST, SRC1, SRC2, SRC3)
+
+/* DST = (SRC1 & ~SRC2) | SRC3. */
+#define bitset_andn_or(DST, SRC1, SRC2, SRC3) \
+ BITSET_ANDN_OR_ (DST, SRC1, SRC2, SRC3)
+
+/* DST = (SRC1 & ~SRC2) | SRC3. Return non-zero if
+ DST != (SRC1 & ~SRC2) | SRC3. */
+#define bitset_andn_or_cmp(DST, SRC1, SRC2, SRC3) \
+ BITSET_ANDN_OR_CMP_ (DST, SRC1, SRC2, SRC3)
+
+/* DST = (SRC1 | SRC2) & SRC3. */
+#define bitset_or_and(DST, SRC1, SRC2, SRC3)\
+ BITSET_OR_AND_ (DST, SRC1, SRC2, SRC3)
+
+/* DST = (SRC1 | SRC2) & SRC3. Return non-zero if
+ DST != (SRC1 | SRC2) & SRC3. */
+#define bitset_or_and_cmp(DST, SRC1, SRC2, SRC3)\
+ BITSET_OR_AND_CMP_ (DST, SRC1, SRC2, SRC3)
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT. Return with actual number of bits found and with *NEXT
+ indicating where search stopped. */
+#define bitset_list(BSET, LIST, NUM, NEXT) \
+ BITSET_LIST_ (BSET, LIST, NUM, NEXT)
+
+/* Find reverse list of up to NUM bits set in BSET starting from and
+ including NEXT. Return with actual number of bits found and with
+ *NEXT indicating where search stopped. */
+#define bitset_list_reverse(BSET, LIST, NUM, NEXT) \
+ BITSET_LIST_REVERSE_ (BSET, LIST, NUM, NEXT)
+
+/* Return true if both bitsets are of the same type and size. */
+extern bool bitset_compatible_p (bitset bset1, bitset bset2);
+
+/* Find next set bit from the given bit index. */
+extern bitset_bindex bitset_next (bitset, bitset_bindex);
+
+/* Find previous set bit from the given bit index. */
+extern bitset_bindex bitset_prev (bitset, bitset_bindex);
+
+/* Find first set bit. */
+extern bitset_bindex bitset_first (bitset);
+
+/* Find last set bit. */
+extern bitset_bindex bitset_last (bitset);
+
+/* Return nonzero if this is the only set bit. */
+extern bool bitset_only_set_p (bitset, bitset_bindex);
+
+/* Dump bitset. */
+extern void bitset_dump (FILE *, bitset);
+
+/* Loop over all elements of BSET, starting with MIN, setting INDEX
+ to the index of each set bit. For example, the following will print
+ the bits set in a bitset:
+
+ bitset_bindex i;
+ bitset_iterator iter;
+
+ BITSET_FOR_EACH (iter, src, i, 0)
+ {
+ printf ("%lu ", (unsigned long int) i);
+ };
+*/
+#define BITSET_FOR_EACH(ITER, BSET, INDEX, MIN) \
+ for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE; \
+ (ITER.num == BITSET_LIST_SIZE) \
+ && (ITER.num = bitset_list (BSET, ITER.list, \
+ BITSET_LIST_SIZE, &ITER.next));) \
+ for (ITER.i = 0; \
+ ITER.i < ITER.num && ((INDEX) = ITER.list[ITER.i], 1); \
+ ITER.i++)
+
+
+/* Loop over all elements of BSET, in reverse order starting with
+ MIN, setting INDEX to the index of each set bit. For example, the
+ following will print the bits set in a bitset in reverse order:
+
+ bitset_bindex i;
+ bitset_iterator iter;
+
+ BITSET_FOR_EACH_REVERSE (iter, src, i, 0)
+ {
+ printf ("%lu ", (unsigned long int) i);
+ };
+*/
+#define BITSET_FOR_EACH_REVERSE(ITER, BSET, INDEX, MIN) \
+ for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE; \
+ (ITER.num == BITSET_LIST_SIZE) \
+ && (ITER.num = bitset_list_reverse (BSET, ITER.list, \
+ BITSET_LIST_SIZE, &ITER.next));) \
+ for (ITER.i = 0; \
+ ITER.i < ITER.num && ((INDEX) = ITER.list[ITER.i], 1); \
+ ITER.i++)
+
+
+/* Define set operations in terms of logical operations. */
+
+#define bitset_diff(DST, SRC1, SRC2) bitset_andn (DST, SRC1, SRC2)
+#define bitset_diff_cmp(DST, SRC1, SRC2) bitset_andn_cmp (DST, SRC1, SRC2)
+
+#define bitset_intersection(DST, SRC1, SRC2) bitset_and (DST, SRC1, SRC2)
+#define bitset_intersection_cmp(DST, SRC1, SRC2) bitset_and_cmp (DST, SRC1, SRC2)
+
+#define bitset_union(DST, SRC1, SRC2) bitset_or (DST, SRC1, SRC2)
+#define bitset_union_cmp(DST, SRC1, SRC2) bitset_or_cmp (DST, SRC1, SRC2)
+
+/* Symmetrical difference. */
+#define bitset_symdiff(DST, SRC1, SRC2) bitset_xor (DST, SRC1, SRC2)
+#define bitset_symdiff_cmp(DST, SRC1, SRC2) bitset_xor_cmp (DST, SRC1, SRC2)
+
+/* Union of difference. */
+#define bitset_diff_union(DST, SRC1, SRC2, SRC3) \
+ bitset_andn_or (DST, SRC1, SRC2, SRC3)
+#define bitset_diff_union_cmp(DST, SRC1, SRC2, SRC3) \
+ bitset_andn_or_cmp (DST, SRC1, SRC2, SRC3)
+
+
+/* Release any memory tied up with bitsets. */
+extern void bitset_release_memory (void);
+
+/* Enable bitset stats gathering. */
+extern void bitset_stats_enable (void);
+
+/* Disable bitset stats gathering. */
+extern void bitset_stats_disable (void);
+
+/* Read bitset stats file of accummulated stats. */
+void bitset_stats_read (const char *file_name);
+
+/* Write bitset stats file of accummulated stats. */
+void bitset_stats_write (const char *file_name);
+
+/* Dump bitset stats. */
+extern void bitset_stats_dump (FILE *);
+
+/* Function to debug bitset from debugger. */
+extern void debug_bitset (bitset);
+
+/* Function to debug bitset stats from debugger. */
+extern void debug_bitset_stats (void);
+
+#endif /* _BITSET_H */
diff --git a/lib/bitset_stats.c b/lib/bitset_stats.c
new file mode 100644
index 0000000..7b7fb34
--- /dev/null
+++ b/lib/bitset_stats.c
@@ -0,0 +1,730 @@
+/* Bitset statistics.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* This file is a wrapper bitset implementation for the other bitset
+ implementations. It provides bitset compatibility checking and
+ statistics gathering without having to instrument the bitset
+ implementations. When statistics gathering is enabled, the bitset
+ operations get vectored through here and we then call the appropriate
+ routines. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "bbitset.h"
+#include "abitset.h"
+#include "ebitset.h"
+#include "lbitset.h"
+#include "vbitset.h"
+#include "bitset_stats.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "gettext.h"
+#define _(Msgid) gettext (Msgid)
+
+/* Configuration macros. */
+#define BITSET_STATS_FILE "bitset.dat"
+#define BITSET_LOG_COUNT_BINS 10
+#define BITSET_LOG_SIZE_BINS 16
+#define BITSET_DENSITY_BINS 20
+
+
+/* Accessor macros. */
+#define BITSET_STATS_ALLOCS_INC(TYPE) \
+ bitset_stats_info->types[(TYPE)].allocs++
+#define BITSET_STATS_FREES_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].frees++
+#define BITSET_STATS_SETS_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].sets++
+#define BITSET_STATS_CACHE_SETS_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].cache_sets++
+#define BITSET_STATS_RESETS_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].resets++
+#define BITSET_STATS_CACHE_RESETS_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].cache_resets++
+#define BITSET_STATS_TESTS_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].tests++
+#define BITSET_STATS_CACHE_TESTS_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].cache_tests++
+#define BITSET_STATS_LISTS_INC(BSET) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].lists++
+#define BITSET_STATS_LIST_COUNTS_INC(BSET, I) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].list_counts[(I)]++
+#define BITSET_STATS_LIST_SIZES_INC(BSET, I) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].list_sizes[(I)]++
+#define BITSET_STATS_LIST_DENSITY_INC(BSET, I) \
+ bitset_stats_info->types[BITSET_TYPE_ (BSET)].list_density[(I)]++
+
+
+struct bitset_type_info_struct
+{
+ unsigned int allocs;
+ unsigned int frees;
+ unsigned int lists;
+ unsigned int sets;
+ unsigned int cache_sets;
+ unsigned int resets;
+ unsigned int cache_resets;
+ unsigned int tests;
+ unsigned int cache_tests;
+ unsigned int list_counts[BITSET_LOG_COUNT_BINS];
+ unsigned int list_sizes[BITSET_LOG_SIZE_BINS];
+ unsigned int list_density[BITSET_DENSITY_BINS];
+};
+
+struct bitset_stats_info_struct
+{
+ unsigned int runs;
+ struct bitset_type_info_struct types[BITSET_TYPE_NUM];
+};
+
+
+struct bitset_stats_info_struct bitset_stats_info_data;
+struct bitset_stats_info_struct *bitset_stats_info;
+bool bitset_stats_enabled = false;
+
+
+/* Print a percentage histogram with message MSG to FILE. */
+static void
+bitset_percent_histogram_print (FILE *file, const char *name, const char *msg,
+ unsigned int n_bins, unsigned int *bins)
+{
+ unsigned int i;
+ unsigned int total;
+
+ total = 0;
+ for (i = 0; i < n_bins; i++)
+ total += bins[i];
+
+ if (!total)
+ return;
+
+ fprintf (file, "%s %s", name, msg);
+ for (i = 0; i < n_bins; i++)
+ fprintf (file, "%.0f-%.0f%%\t%8u (%5.1f%%)\n",
+ i * 100.0 / n_bins,
+ (i + 1) * 100.0 / n_bins, bins[i],
+ (100.0 * bins[i]) / total);
+}
+
+
+/* Print a log histogram with message MSG to FILE. */
+static void
+bitset_log_histogram_print (FILE *file, const char *name, const char *msg,
+ unsigned int n_bins, unsigned int *bins)
+{
+ unsigned int i;
+ unsigned int total;
+ unsigned int max_width;
+
+ total = 0;
+ for (i = 0; i < n_bins; i++)
+ total += bins[i];
+
+ if (!total)
+ return;
+
+ /* Determine number of useful bins. */
+ for (i = n_bins; i > 3 && ! bins[i - 1]; i--)
+ continue;
+ n_bins = i;
+
+ /* 2 * ceil (log10 (2) * (N - 1)) + 1. */
+ max_width = 2 * (unsigned int) (0.30103 * (n_bins - 1) + 0.9999) + 1;
+
+ fprintf (file, "%s %s", name, msg);
+ for (i = 0; i < 2; i++)
+ fprintf (file, "%*d\t%8u (%5.1f%%)\n",
+ max_width, i, bins[i], 100.0 * bins[i] / total);
+
+ for (; i < n_bins; i++)
+ fprintf (file, "%*lu-%lu\t%8u (%5.1f%%)\n",
+ max_width - ((unsigned int) (0.30103 * (i) + 0.9999) + 1),
+ 1UL << (i - 1),
+ (1UL << i) - 1,
+ bins[i],
+ (100.0 * bins[i]) / total);
+}
+
+
+/* Print bitset statistics to FILE. */
+static void
+bitset_stats_print_1 (FILE *file, const char *name,
+ struct bitset_type_info_struct *stats)
+{
+ if (!stats)
+ return;
+
+ fprintf (file, "%s:\n", name);
+ fprintf (file, _("%u bitset_allocs, %u freed (%.2f%%).\n"),
+ stats->allocs, stats->frees,
+ stats->allocs ? 100.0 * stats->frees / stats->allocs : 0);
+ fprintf (file, _("%u bitset_sets, %u cached (%.2f%%)\n"),
+ stats->sets, stats->cache_sets,
+ stats->sets ? 100.0 * stats->cache_sets / stats->sets : 0);
+ fprintf (file, _("%u bitset_resets, %u cached (%.2f%%)\n"),
+ stats->resets, stats->cache_resets,
+ stats->resets ? 100.0 * stats->cache_resets / stats->resets : 0);
+ fprintf (file, _("%u bitset_tests, %u cached (%.2f%%)\n"),
+ stats->tests, stats->cache_tests,
+ stats->tests ? 100.0 * stats->cache_tests / stats->tests : 0);
+
+ fprintf (file, _("%u bitset_lists\n"), stats->lists);
+
+ bitset_log_histogram_print (file, name, _("count log histogram\n"),
+ BITSET_LOG_COUNT_BINS, stats->list_counts);
+
+ bitset_log_histogram_print (file, name, _("size log histogram\n"),
+ BITSET_LOG_SIZE_BINS, stats->list_sizes);
+
+ bitset_percent_histogram_print (file, name, _("density histogram\n"),
+ BITSET_DENSITY_BINS, stats->list_density);
+}
+
+
+/* Print all bitset statistics to FILE. */
+static void
+bitset_stats_print (FILE *file, bool verbose ATTRIBUTE_UNUSED)
+{
+ int i;
+
+ if (!bitset_stats_info)
+ return;
+
+ fprintf (file, _("Bitset statistics:\n\n"));
+
+ if (bitset_stats_info->runs > 1)
+ fprintf (file, _("Accumulated runs = %u\n"), bitset_stats_info->runs);
+
+ for (i = 0; i < BITSET_TYPE_NUM; i++)
+ bitset_stats_print_1 (file, bitset_type_names[i],
+ &bitset_stats_info->types[i]);
+}
+
+
+/* Initialise bitset statistics logging. */
+void
+bitset_stats_enable (void)
+{
+ if (!bitset_stats_info)
+ bitset_stats_info = &bitset_stats_info_data;
+ bitset_stats_enabled = true;
+}
+
+
+void
+bitset_stats_disable (void)
+{
+ bitset_stats_enabled = false;
+}
+
+
+/* Read bitset statistics file. */
+void
+bitset_stats_read (const char *file_name)
+{
+ FILE *file;
+
+ if (!bitset_stats_info)
+ return;
+
+ if (!file_name)
+ file_name = BITSET_STATS_FILE;
+
+ file = fopen (file_name, "r");
+ if (file)
+ {
+ if (fread (&bitset_stats_info_data, sizeof (bitset_stats_info_data),
+ 1, file) != 1)
+ {
+ if (ferror (file))
+ perror (_("Could not read stats file."));
+ else
+ fprintf (stderr, _("Bad stats file size.\n"));
+ }
+ if (fclose (file) != 0)
+ perror (_("Could not read stats file."));
+ }
+ bitset_stats_info_data.runs++;
+}
+
+
+/* Write bitset statistics file. */
+void
+bitset_stats_write (const char *file_name)
+{
+ FILE *file;
+
+ if (!bitset_stats_info)
+ return;
+
+ if (!file_name)
+ file_name = BITSET_STATS_FILE;
+
+ file = fopen (file_name, "w");
+ if (file)
+ {
+ if (fwrite (&bitset_stats_info_data, sizeof (bitset_stats_info_data),
+ 1, file) != 1)
+ perror (_("Could not write stats file."));
+ if (fclose (file) != 0)
+ perror (_("Could not write stats file."));
+ }
+ else
+ perror (_("Could not open stats file for writing."));
+}
+
+
+/* Dump bitset statistics to FILE. */
+void
+bitset_stats_dump (FILE *file)
+{
+ bitset_stats_print (file, false);
+}
+
+
+/* Function to be called from debugger to print bitset stats. */
+void
+debug_bitset_stats (void)
+{
+ bitset_stats_print (stderr, true);
+}
+
+
+static void
+bitset_stats_set (bitset dst, bitset_bindex bitno)
+{
+ bitset bset = dst->s.bset;
+ bitset_windex wordno = bitno / BITSET_WORD_BITS;
+ bitset_windex offset = wordno - bset->b.cindex;
+
+ BITSET_STATS_SETS_INC (bset);
+
+ if (offset < bset->b.csize)
+ {
+ bset->b.cdata[offset] |= (bitset_word) 1 << (bitno % BITSET_WORD_BITS);
+ BITSET_STATS_CACHE_SETS_INC (bset);
+ }
+ else
+ BITSET_SET_ (bset, bitno);
+}
+
+
+static void
+bitset_stats_reset (bitset dst, bitset_bindex bitno)
+{
+ bitset bset = dst->s.bset;
+ bitset_windex wordno = bitno / BITSET_WORD_BITS;
+ bitset_windex offset = wordno - bset->b.cindex;
+
+ BITSET_STATS_RESETS_INC (bset);
+
+ if (offset < bset->b.csize)
+ {
+ bset->b.cdata[offset] &=
+ ~((bitset_word) 1 << (bitno % BITSET_WORD_BITS));
+ BITSET_STATS_CACHE_RESETS_INC (bset);
+ }
+ else
+ BITSET_RESET_ (bset, bitno);
+}
+
+
+static bool
+bitset_stats_toggle (bitset src, bitset_bindex bitno)
+{
+ return BITSET_TOGGLE_ (src->s.bset, bitno);
+}
+
+
+static bool
+bitset_stats_test (bitset src, bitset_bindex bitno)
+{
+ bitset bset = src->s.bset;
+ bitset_windex wordno = bitno / BITSET_WORD_BITS;
+ bitset_windex offset = wordno - bset->b.cindex;
+
+ BITSET_STATS_TESTS_INC (bset);
+
+ if (offset < bset->b.csize)
+ {
+ BITSET_STATS_CACHE_TESTS_INC (bset);
+ return (bset->b.cdata[offset] >> (bitno % BITSET_WORD_BITS)) & 1;
+ }
+ else
+ return BITSET_TEST_ (bset, bitno);
+}
+
+
+static bitset_bindex
+bitset_stats_resize (bitset src, bitset_bindex size)
+{
+ return BITSET_RESIZE_ (src->s.bset, size);
+}
+
+
+static bitset_bindex
+bitset_stats_size (bitset src)
+{
+ return BITSET_SIZE_ (src->s.bset);
+}
+
+
+static bitset_bindex
+bitset_stats_count (bitset src)
+{
+ return BITSET_COUNT_ (src->s.bset);
+}
+
+
+static bool
+bitset_stats_empty_p (bitset dst)
+{
+ return BITSET_EMPTY_P_ (dst->s.bset);
+}
+
+
+static void
+bitset_stats_ones (bitset dst)
+{
+ BITSET_ONES_ (dst->s.bset);
+}
+
+
+static void
+bitset_stats_zero (bitset dst)
+{
+ BITSET_ZERO_ (dst->s.bset);
+}
+
+
+static void
+bitset_stats_copy (bitset dst, bitset src)
+{
+ BITSET_CHECK2_ (dst, src);
+ BITSET_COPY_ (dst->s.bset, src->s.bset);
+}
+
+
+static bool
+bitset_stats_disjoint_p (bitset dst, bitset src)
+{
+ BITSET_CHECK2_ (dst, src);
+ return BITSET_DISJOINT_P_ (dst->s.bset, src->s.bset);
+}
+
+
+static bool
+bitset_stats_equal_p (bitset dst, bitset src)
+{
+ BITSET_CHECK2_ (dst, src);
+ return BITSET_EQUAL_P_ (dst->s.bset, src->s.bset);
+}
+
+
+static void
+bitset_stats_not (bitset dst, bitset src)
+{
+ BITSET_CHECK2_ (dst, src);
+ BITSET_NOT_ (dst->s.bset, src->s.bset);
+}
+
+
+static bool
+bitset_stats_subset_p (bitset dst, bitset src)
+{
+ BITSET_CHECK2_ (dst, src);
+ return BITSET_SUBSET_P_ (dst->s.bset, src->s.bset);
+}
+
+
+static void
+bitset_stats_and (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ BITSET_AND_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static bool
+bitset_stats_and_cmp (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ return BITSET_AND_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_andn (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ BITSET_ANDN_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static bool
+bitset_stats_andn_cmp (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ return BITSET_ANDN_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_or (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ BITSET_OR_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static bool
+bitset_stats_or_cmp (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ return BITSET_OR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_xor (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ BITSET_XOR_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static bool
+bitset_stats_xor_cmp (bitset dst, bitset src1, bitset src2)
+{
+ BITSET_CHECK3_ (dst, src1, src2);
+ return BITSET_XOR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset);
+}
+
+
+static void
+bitset_stats_and_or (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ BITSET_CHECK4_ (dst, src1, src2, src3);
+ BITSET_AND_OR_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static bool
+bitset_stats_and_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ BITSET_CHECK4_ (dst, src1, src2, src3);
+ return BITSET_AND_OR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static void
+bitset_stats_andn_or (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ BITSET_CHECK4_ (dst, src1, src2, src3);
+ BITSET_ANDN_OR_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static bool
+bitset_stats_andn_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ BITSET_CHECK4_ (dst, src1, src2, src3);
+ return BITSET_ANDN_OR_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static void
+bitset_stats_or_and (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ BITSET_CHECK4_ (dst, src1, src2, src3);
+ BITSET_OR_AND_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static bool
+bitset_stats_or_and_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ BITSET_CHECK4_ (dst, src1, src2, src3);
+ return BITSET_OR_AND_CMP_ (dst->s.bset, src1->s.bset, src2->s.bset, src3->s.bset);
+}
+
+
+static bitset_bindex
+bitset_stats_list (bitset bset, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex count;
+ bitset_bindex tmp;
+ bitset_bindex size;
+ bitset_bindex i;
+ enum bitset_type type;
+
+ count = BITSET_LIST_ (bset->s.bset, list, num, next);
+
+ type = BITSET_TYPE_ (bset->s.bset);
+ BITSET_STATS_LISTS_INC (bset->s.bset);
+
+ /* Log histogram of number of set bits. */
+ for (i = 0, tmp = count; tmp; tmp >>= 1, i++)
+ continue;
+ if (i >= BITSET_LOG_COUNT_BINS)
+ i = BITSET_LOG_COUNT_BINS - 1;
+ BITSET_STATS_LIST_COUNTS_INC (bset->s.bset, i);
+
+ /* Log histogram of number of bits in set. */
+ size = BITSET_SIZE_ (bset->s.bset);
+ for (i = 0, tmp = size; tmp; tmp >>= 1, i++)
+ continue;
+ if (i >= BITSET_LOG_SIZE_BINS)
+ i = BITSET_LOG_SIZE_BINS - 1;
+ BITSET_STATS_LIST_SIZES_INC (bset->s.bset, i);
+
+ /* Histogram of fraction of bits set. */
+ i = size ? (count * BITSET_DENSITY_BINS) / size : 0;
+ if (i >= BITSET_DENSITY_BINS)
+ i = BITSET_DENSITY_BINS - 1;
+ BITSET_STATS_LIST_DENSITY_INC (bset->s.bset, i);
+ return count;
+}
+
+
+static bitset_bindex
+bitset_stats_list_reverse (bitset bset, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ return BITSET_LIST_REVERSE_ (bset->s.bset, list, num, next);
+}
+
+
+static void
+bitset_stats_free (bitset bset)
+{
+ BITSET_STATS_FREES_INC (bset->s.bset);
+ BITSET_FREE_ (bset->s.bset);
+}
+
+
+struct bitset_vtable bitset_stats_vtable = {
+ bitset_stats_set,
+ bitset_stats_reset,
+ bitset_stats_toggle,
+ bitset_stats_test,
+ bitset_stats_resize,
+ bitset_stats_size,
+ bitset_stats_count,
+ bitset_stats_empty_p,
+ bitset_stats_ones,
+ bitset_stats_zero,
+ bitset_stats_copy,
+ bitset_stats_disjoint_p,
+ bitset_stats_equal_p,
+ bitset_stats_not,
+ bitset_stats_subset_p,
+ bitset_stats_and,
+ bitset_stats_and_cmp,
+ bitset_stats_andn,
+ bitset_stats_andn_cmp,
+ bitset_stats_or,
+ bitset_stats_or_cmp,
+ bitset_stats_xor,
+ bitset_stats_xor_cmp,
+ bitset_stats_and_or,
+ bitset_stats_and_or_cmp,
+ bitset_stats_andn_or,
+ bitset_stats_andn_or_cmp,
+ bitset_stats_or_and,
+ bitset_stats_or_and_cmp,
+ bitset_stats_list,
+ bitset_stats_list_reverse,
+ bitset_stats_free,
+ BITSET_STATS
+};
+
+
+/* Return enclosed bitset type. */
+enum bitset_type
+bitset_stats_type_get (bitset bset)
+{
+ return BITSET_TYPE_ (bset->s.bset);
+}
+
+
+size_t
+bitset_stats_bytes (void)
+{
+ return sizeof (struct bitset_stats_struct);
+}
+
+
+bitset
+bitset_stats_init (bitset bset, bitset_bindex n_bits, enum bitset_type type)
+{
+ size_t bytes;
+ bitset sbset;
+
+ bset->b.vtable = &bitset_stats_vtable;
+
+ /* Disable cache. */
+ bset->b.cindex = 0;
+ bset->b.csize = 0;
+ bset->b.cdata = 0;
+
+ BITSET_NBITS_ (bset) = n_bits;
+
+ /* Set up the actual bitset implementation that
+ we are a wrapper over. */
+ switch (type)
+ {
+ default:
+ abort ();
+
+ case BITSET_ARRAY:
+ bytes = abitset_bytes (n_bits);
+ sbset = xcalloc (1, bytes);
+ abitset_init (sbset, n_bits);
+ break;
+
+ case BITSET_LIST:
+ bytes = lbitset_bytes (n_bits);
+ sbset = xcalloc (1, bytes);
+ lbitset_init (sbset, n_bits);
+ break;
+
+ case BITSET_TABLE:
+ bytes = ebitset_bytes (n_bits);
+ sbset = xcalloc (1, bytes);
+ ebitset_init (sbset, n_bits);
+ break;
+
+ case BITSET_VARRAY:
+ bytes = vbitset_bytes (n_bits);
+ sbset = xcalloc (1, bytes);
+ vbitset_init (sbset, n_bits);
+ break;
+ }
+
+ bset->s.bset = sbset;
+
+ BITSET_STATS_ALLOCS_INC (type);
+
+ return bset;
+}
diff --git a/lib/bitset_stats.h b/lib/bitset_stats.h
new file mode 100644
index 0000000..6378c5c
--- /dev/null
+++ b/lib/bitset_stats.h
@@ -0,0 +1,32 @@
+/* Functions to support bitset statistics.
+ Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _BITSET_STATS_H
+#define _BITSET_STATS_H
+
+#include "bbitset.h"
+
+extern bool bitset_stats_enabled;
+
+extern enum bitset_type bitset_stats_type_get (bitset);
+
+extern size_t bitset_stats_bytes (void);
+
+extern bitset bitset_stats_init (bitset, bitset_bindex, enum bitset_type);
+
+#endif
diff --git a/lib/bitsetv-print.c b/lib/bitsetv-print.c
new file mode 100644
index 0000000..0083871
--- /dev/null
+++ b/lib/bitsetv-print.c
@@ -0,0 +1,71 @@
+/* Bitset vectors.
+ Copyright (C) 2001, 2002, 2004, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+#include "bitsetv-print.h"
+
+/*--------------------------------------------------------.
+| Display the MATRIX array of SIZE bitsets of size SIZE. |
+`--------------------------------------------------------*/
+
+void
+bitsetv_matrix_dump (FILE * out, const char *title, bitsetv bset)
+{
+ bitset_bindex i, j;
+ bitset_bindex hsize = bitset_size (bset[0]);
+
+ /* Title. */
+ fprintf (out, "%s BEGIN\n", title);
+
+ /* Column numbers. */
+ fputs (" ", out);
+ for (i = 0; i < hsize; ++i)
+ putc (i / 10 ? '0' + i / 10 : ' ', out);
+ putc ('\n', out);
+ fputs (" ", out);
+ for (i = 0; i < hsize; ++i)
+ fprintf (out, "%d", (int) (i % 10));
+ putc ('\n', out);
+
+ /* Bar. */
+ fputs (" .", out);
+ for (i = 0; i < hsize; ++i)
+ putc ('-', out);
+ fputs (".\n", out);
+
+ /* Contents. */
+ for (i = 0; bset[i]; ++i)
+ {
+ fprintf (out, "%2lu|", (unsigned long int) i);
+ for (j = 0; j < hsize; ++j)
+ fputs (bitset_test (bset[i], j) ? "1" : " ", out);
+ fputs ("|\n", out);
+ }
+
+ /* Bar. */
+ fputs (" `", out);
+ for (i = 0; i < hsize; ++i)
+ putc ('-', out);
+ fputs ("'\n", out);
+
+ /* End title. */
+ fprintf (out, "%s END\n\n", title);
+}
diff --git a/lib/bitsetv-print.h b/lib/bitsetv-print.h
new file mode 100644
index 0000000..e54be68
--- /dev/null
+++ b/lib/bitsetv-print.h
@@ -0,0 +1,27 @@
+/* Bitset vectors.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+ Contributed by Akim Demaille (akim@freefriends.org).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _BITSETV_PRINT_H
+#define _BITSETV_PRINT_H
+
+#include "bitsetv.h"
+
+/* Dump vector of bitsets as a matrix. */
+extern void bitsetv_matrix_dump (FILE *, const char *, bitsetv);
+
+#endif /* _BITSETV_H */
diff --git a/lib/bitsetv.c b/lib/bitsetv.c
new file mode 100644
index 0000000..ae79853
--- /dev/null
+++ b/lib/bitsetv.c
@@ -0,0 +1,169 @@
+/* Bitset vectors.
+ Copyright (C) 2001, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+#include "bitsetv.h"
+
+
+/* Create a vector of N_VECS bitsets, each of N_BITS, and of
+ type TYPE. */
+bitset *
+bitsetv_alloc (bitset_bindex n_vecs, bitset_bindex n_bits,
+ enum bitset_type type)
+{
+ size_t vector_bytes;
+ size_t bytes;
+ bitset *bsetv;
+ bitset_bindex i;
+
+ /* Determine number of bytes for each set. */
+ bytes = bitset_bytes (type, n_bits);
+
+ /* If size calculation overflows, memory is exhausted. */
+ if (BITSET_SIZE_MAX / (sizeof (bitset) + bytes) <= n_vecs)
+ xalloc_die ();
+
+ /* Allocate vector table at head of bitset array. */
+ vector_bytes = (n_vecs + 1) * sizeof (bitset) + bytes - 1;
+ vector_bytes -= vector_bytes % bytes;
+ bsetv = xcalloc (1, vector_bytes + bytes * n_vecs);
+
+ for (i = 0; i < n_vecs; i++)
+ {
+ bsetv[i] = (bitset) (void *) ((char *) bsetv + vector_bytes + i * bytes);
+
+ bitset_init (bsetv[i], n_bits, type);
+ }
+
+ /* Null terminate table. */
+ bsetv[i] = 0;
+ return bsetv;
+}
+
+
+/* Create a vector of N_VECS bitsets, each of N_BITS, and with
+ attribute hints specified by ATTR. */
+bitset *
+bitsetv_create (bitset_bindex n_vecs, bitset_bindex n_bits, unsigned int attr)
+{
+ enum bitset_type type;
+
+ type = bitset_type_choose (n_bits, attr);
+ return bitsetv_alloc (n_vecs, n_bits, type);
+}
+
+
+/* Free bitset vector BSETV. */
+void
+bitsetv_free (bitsetv bsetv)
+{
+ bitset_bindex i;
+
+ for (i = 0; bsetv[i]; i++)
+ BITSET_FREE_ (bsetv[i]);
+ free (bsetv);
+}
+
+
+/* Zero a vector of bitsets. */
+void
+bitsetv_zero (bitsetv bsetv)
+{
+ bitset_bindex i;
+
+ for (i = 0; bsetv[i]; i++)
+ bitset_zero (bsetv[i]);
+}
+
+
+/* Set a vector of bitsets to ones. */
+void
+bitsetv_ones (bitsetv bsetv)
+{
+ bitset_bindex i;
+
+ for (i = 0; bsetv[i]; i++)
+ bitset_ones (bsetv[i]);
+}
+
+
+/* Given a vector BSETV of N bitsets of size N, modify its contents to
+ be the transitive closure of what was given. */
+void
+bitsetv_transitive_closure (bitsetv bsetv)
+{
+ bitset_bindex i;
+ bitset_bindex j;
+
+ for (i = 0; bsetv[i]; i++)
+ for (j = 0; bsetv[j]; j++)
+ if (bitset_test (bsetv[j], i))
+ bitset_or (bsetv[j], bsetv[j], bsetv[i]);
+}
+
+
+/* Given a vector BSETV of N bitsets of size N, modify its contents to
+ be the reflexive transitive closure of what was given. This is
+ the same as transitive closure but with all bits on the diagonal
+ of the bit matrix set. */
+void
+bitsetv_reflexive_transitive_closure (bitsetv bsetv)
+{
+ bitset_bindex i;
+
+ bitsetv_transitive_closure (bsetv);
+ for (i = 0; bsetv[i]; i++)
+ bitset_set (bsetv[i], i);
+}
+
+
+/* Dump the contents of a bitset vector BSETV with N_VECS elements to
+ FILE. */
+void
+bitsetv_dump (FILE *file, char const *title, char const *subtitle,
+ bitsetv bsetv)
+{
+ bitset_windex i;
+
+ fprintf (file, "%s\n", title);
+ for (i = 0; bsetv[i]; i++)
+ {
+ fprintf (file, "%s %lu\n", subtitle, (unsigned long int) i);
+ bitset_dump (file, bsetv[i]);
+ }
+
+ fprintf (file, "\n");
+}
+
+
+void
+debug_bitsetv (bitsetv bsetv)
+{
+ bitset_windex i;
+
+ for (i = 0; bsetv[i]; i++)
+ {
+ fprintf (stderr, "%lu: ", (unsigned long int) i);
+ debug_bitset (bsetv[i]);
+ }
+
+ fprintf (stderr, "\n");
+}
diff --git a/lib/bitsetv.h b/lib/bitsetv.h
new file mode 100644
index 0000000..652f9e3
--- /dev/null
+++ b/lib/bitsetv.h
@@ -0,0 +1,59 @@
+/* Bitset vectors.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _BITSETV_H
+#define _BITSETV_H
+
+#include "bitset.h"
+
+typedef bitset * bitsetv;
+
+/* Create a vector of N_VECS bitsets, each of N_BITS, and of
+ type TYPE. */
+extern bitsetv bitsetv_alloc (bitset_bindex, bitset_bindex, enum bitset_type);
+
+/* Create a vector of N_VECS bitsets, each of N_BITS, and with
+ attribute hints specified by ATTR. */
+extern bitsetv bitsetv_create (bitset_bindex, bitset_bindex, unsigned int);
+
+/* Free vector of bitsets. */
+extern void bitsetv_free (bitsetv);
+
+/* Zero vector of bitsets. */
+extern void bitsetv_zero (bitsetv);
+
+/* Set vector of bitsets. */
+extern void bitsetv_ones (bitsetv);
+
+/* Given a vector BSETV of N bitsets of size N, modify its contents to
+ be the transitive closure of what was given. */
+extern void bitsetv_transitive_closure (bitsetv);
+
+/* Given a vector BSETV of N bitsets of size N, modify its contents to
+ be the reflexive transitive closure of what was given. This is
+ the same as transitive closure but with all bits on the diagonal
+ of the bit matrix set. */
+extern void bitsetv_reflexive_transitive_closure (bitsetv);
+
+/* Dump vector of bitsets. */
+extern void bitsetv_dump (FILE *, const char *, const char *, bitsetv);
+
+/* Function to debug vector of bitsets from debugger. */
+extern void debug_bitsetv (bitsetv);
+
+#endif /* _BITSETV_H */
diff --git a/lib/dirname.c b/lib/dirname.c
new file mode 100644
index 0000000..e2b9d64
--- /dev/null
+++ b/lib/dirname.c
@@ -0,0 +1,121 @@
+/* dirname.c -- return all but the last element in a file name
+
+ Copyright (C) 1990, 1998, 2000, 2001, 2003, 2004, 2005 Free Software
+ Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "dirname.h"
+
+#include <string.h>
+#include "xalloc.h"
+
+/* Return the length of `dirname (FILE)', or zero if FILE is
+ in the working directory. Works properly even if
+ there are trailing slashes (by effectively ignoring them). */
+size_t
+dir_len (char const *file)
+{
+ size_t prefix_length = FILE_SYSTEM_PREFIX_LEN (file);
+ size_t length;
+
+ /* Strip the basename and any redundant slashes before it. */
+ for (length = base_name (file) - file; prefix_length < length; length--)
+ if (! ISSLASH (file[length - 1]))
+ return length;
+
+ /* But don't strip the only slash from "/". */
+ return prefix_length + ISSLASH (file[prefix_length]);
+}
+
+/* Return the leading directories part of FILE,
+ allocated with xmalloc.
+ Works properly even if there are trailing slashes
+ (by effectively ignoring them). */
+
+char *
+dir_name (char const *file)
+{
+ size_t length = dir_len (file);
+ bool append_dot = (length == FILE_SYSTEM_PREFIX_LEN (file));
+ char *dir = xmalloc (length + append_dot + 1);
+ memcpy (dir, file, length);
+ if (append_dot)
+ dir[length++] = '.';
+ dir[length] = 0;
+ return dir;
+}
+
+#ifdef TEST_DIRNAME
+/*
+
+Run the test like this (expect no output):
+ gcc -DHAVE_CONFIG_H -DTEST_DIRNAME -I.. -O -Wall \
+ basename.c dirname.c xmalloc.c error.c
+ sed -n '/^BEGIN-DATA$/,/^END-DATA$/p' dirname.c|grep -v DATA|./a.out
+
+If it's been built on a DOS or Windows platforms, run another test like
+this (again, expect no output):
+ sed -n '/^BEGIN-DOS-DATA$/,/^END-DOS-DATA$/p' dirname.c|grep -v DATA|./a.out
+
+BEGIN-DATA
+foo//// .
+bar/foo//// bar
+foo/ .
+/ /
+. .
+a .
+END-DATA
+
+BEGIN-DOS-DATA
+c:///// c:/
+c:/ c:/
+c:/. c:/
+c:foo c:.
+c:foo/bar c:foo
+END-DOS-DATA
+
+*/
+
+# define MAX_BUFF_LEN 1024
+# include <stdio.h>
+
+char *program_name;
+
+int
+main (int argc, char *argv[])
+{
+ char buff[MAX_BUFF_LEN + 1];
+
+ program_name = argv[0];
+
+ buff[MAX_BUFF_LEN] = 0;
+ while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0])
+ {
+ char file[MAX_BUFF_LEN];
+ char expected_result[MAX_BUFF_LEN];
+ char const *result;
+ sscanf (buff, "%s %s", file, expected_result);
+ result = dir_name (file);
+ if (strcmp (result, expected_result))
+ printf ("%s: got %s, expected %s\n", file, result, expected_result);
+ }
+ return 0;
+}
+#endif
diff --git a/lib/dirname.h b/lib/dirname.h
new file mode 100644
index 0000000..1688ae8
--- /dev/null
+++ b/lib/dirname.h
@@ -0,0 +1,47 @@
+/* Take file names apart into directory and base names.
+
+ Copyright (C) 1998, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef DIRNAME_H_
+# define DIRNAME_H_ 1
+
+# include <stdbool.h>
+# include <stddef.h>
+
+# ifndef DIRECTORY_SEPARATOR
+# define DIRECTORY_SEPARATOR '/'
+# endif
+
+# ifndef ISSLASH
+# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
+# endif
+
+# ifndef FILE_SYSTEM_PREFIX_LEN
+# define FILE_SYSTEM_PREFIX_LEN(File_name) 0
+# endif
+
+# define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
+# define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F))
+
+char *base_name (char const *file);
+char *dir_name (char const *file);
+size_t base_len (char const *file);
+size_t dir_len (char const *file);
+
+bool strip_trailing_slashes (char *file);
+
+#endif /* not DIRNAME_H_ */
diff --git a/lib/dup-safer.c b/lib/dup-safer.c
new file mode 100644
index 0000000..8cbee70
--- /dev/null
+++ b/lib/dup-safer.c
@@ -0,0 +1,46 @@
+/* Invoke dup, but avoid some glitches.
+ Copyright (C) 2001, 2004, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "unistd-safer.h"
+
+#include <fcntl.h>
+
+#include <unistd.h>
+#ifndef STDERR_FILENO
+# define STDERR_FILENO 2
+#endif
+
+/* Like dup, but do not return STDIN_FILENO, STDOUT_FILENO, or
+ STDERR_FILENO. */
+
+int
+dup_safer (int fd)
+{
+#ifdef F_DUPFD
+ return fcntl (fd, F_DUPFD, STDERR_FILENO + 1);
+#else
+ /* fd_safer calls us back, but eventually the recursion unwinds and
+ does the right thing. */
+ return fd_safer (dup (fd));
+#endif
+}
diff --git a/lib/ebitset.c b/lib/ebitset.c
new file mode 100644
index 0000000..cedf0e2
--- /dev/null
+++ b/lib/ebitset.c
@@ -0,0 +1,1366 @@
+/* Functions to support expandable bitsets.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "ebitset.h"
+#include "obstack.h"
+#include <stdlib.h>
+#include <string.h>
+
+/* This file implements expandable bitsets. These bitsets can be of
+ arbitrary length and are more efficient than arrays of bits for
+ large sparse sets.
+
+ Empty elements are represented by a NULL pointer in the table of
+ element pointers. An alternative is to point to a special zero
+ element. Similarly, we could represent an all 1's element with
+ another special ones element pointer.
+
+ Bitsets are commonly empty so we need to ensure that this special
+ case is fast. A zero bitset is indicated when cdata is 0. This is
+ conservative since cdata may be non zero and the bitset may still
+ be zero.
+
+ The bitset cache can be disabled either by setting cindex to
+ BITSET_WINDEX_MAX or by setting csize to 0. Here
+ we use the former approach since cindex needs to be updated whenever
+ cdata is changed.
+*/
+
+
+/* Number of words to use for each element. */
+#define EBITSET_ELT_WORDS 2
+
+/* Number of bits stored in each element. */
+#define EBITSET_ELT_BITS \
+ ((unsigned int) (EBITSET_ELT_WORDS * BITSET_WORD_BITS))
+
+/* Ebitset element. We use an array of bits. */
+typedef struct ebitset_elt_struct
+{
+ union
+ {
+ bitset_word words[EBITSET_ELT_WORDS]; /* Bits that are set. */
+ struct ebitset_elt_struct *next;
+ }
+ u;
+}
+ebitset_elt;
+
+
+typedef ebitset_elt *ebitset_elts;
+
+
+/* Number of elements to initially allocate. */
+
+#ifndef EBITSET_INITIAL_SIZE
+#define EBITSET_INITIAL_SIZE 2
+#endif
+
+
+enum ebitset_find_mode
+ { EBITSET_FIND, EBITSET_CREATE, EBITSET_SUBST };
+
+static ebitset_elt ebitset_zero_elts[1]; /* Elements of all zero bits. */
+
+/* Obstack to allocate bitset elements from. */
+static struct obstack ebitset_obstack;
+static bool ebitset_obstack_init = false;
+static ebitset_elt *ebitset_free_list; /* Free list of bitset elements. */
+
+#define EBITSET_N_ELTS(N) (((N) + EBITSET_ELT_BITS - 1) / EBITSET_ELT_BITS)
+#define EBITSET_ELTS(BSET) ((BSET)->e.elts)
+#define EBITSET_SIZE(BSET) EBITSET_N_ELTS (BITSET_NBITS_ (BSET))
+#define EBITSET_ASIZE(BSET) ((BSET)->e.size)
+
+#define EBITSET_NEXT(ELT) ((ELT)->u.next)
+#define EBITSET_WORDS(ELT) ((ELT)->u.words)
+
+/* Disable bitset cache and mark BSET as being zero. */
+#define EBITSET_ZERO_SET(BSET) ((BSET)->b.cindex = BITSET_WINDEX_MAX, \
+ (BSET)->b.cdata = 0)
+
+#define EBITSET_CACHE_DISABLE(BSET) ((BSET)->b.cindex = BITSET_WINDEX_MAX)
+
+/* Disable bitset cache and mark BSET as being possibly non-zero. */
+#define EBITSET_NONZERO_SET(BSET) \
+ (EBITSET_CACHE_DISABLE (BSET), (BSET)->b.cdata = (bitset_word *)~0)
+
+/* A conservative estimate of whether the bitset is zero.
+ This is non-zero only if we know for sure that the bitset is zero. */
+#define EBITSET_ZERO_P(BSET) ((BSET)->b.cdata == 0)
+
+/* Enable cache to point to element with table index EINDEX.
+ The element must exist. */
+#define EBITSET_CACHE_SET(BSET, EINDEX) \
+ ((BSET)->b.cindex = (EINDEX) * EBITSET_ELT_WORDS, \
+ (BSET)->b.cdata = EBITSET_WORDS (EBITSET_ELTS (BSET) [EINDEX]))
+
+#undef min
+#undef max
+#define min(a, b) ((a) > (b) ? (b) : (a))
+#define max(a, b) ((a) > (b) ? (a) : (b))
+
+static bitset_bindex
+ebitset_resize (bitset src, bitset_bindex n_bits)
+{
+ bitset_windex oldsize;
+ bitset_windex newsize;
+
+ if (n_bits == BITSET_NBITS_ (src))
+ return n_bits;
+
+ oldsize = EBITSET_SIZE (src);
+ newsize = EBITSET_N_ELTS (n_bits);
+
+ if (oldsize < newsize)
+ {
+ bitset_windex size;
+
+ /* The bitset needs to grow. If we already have enough memory
+ allocated, then just zero what we need. */
+ if (newsize > EBITSET_ASIZE (src))
+ {
+ /* We need to allocate more memory. When oldsize is
+ non-zero this means that we are changing the size, so
+ grow the bitset 25% larger than requested to reduce
+ number of reallocations. */
+
+ if (oldsize == 0)
+ size = newsize;
+ else
+ size = newsize + newsize / 4;
+
+ EBITSET_ELTS (src)
+ = realloc (EBITSET_ELTS (src), size * sizeof (ebitset_elt *));
+ EBITSET_ASIZE (src) = size;
+ }
+
+ memset (EBITSET_ELTS (src) + oldsize, 0,
+ (newsize - oldsize) * sizeof (ebitset_elt *));
+ }
+ else
+ {
+ /* The bitset needs to shrink. There's no point deallocating
+ the memory unless it is shrinking by a reasonable amount. */
+ if ((oldsize - newsize) >= oldsize / 2)
+ {
+ EBITSET_ELTS (src)
+ = realloc (EBITSET_ELTS (src), newsize * sizeof (ebitset_elt *));
+ EBITSET_ASIZE (src) = newsize;
+ }
+
+ /* Need to prune any excess bits. FIXME. */
+ }
+
+ BITSET_NBITS_ (src) = n_bits;
+ return n_bits;
+}
+
+
+/* Allocate a ebitset element. The bits are not cleared. */
+static inline ebitset_elt *
+ebitset_elt_alloc (void)
+{
+ ebitset_elt *elt;
+
+ if (ebitset_free_list != 0)
+ {
+ elt = ebitset_free_list;
+ ebitset_free_list = EBITSET_NEXT (elt);
+ }
+ else
+ {
+ if (!ebitset_obstack_init)
+ {
+ ebitset_obstack_init = true;
+
+ /* Let particular systems override the size of a chunk. */
+
+#ifndef OBSTACK_CHUNK_SIZE
+#define OBSTACK_CHUNK_SIZE 0
+#endif
+
+ /* Let them override the alloc and free routines too. */
+
+#ifndef OBSTACK_CHUNK_ALLOC
+#define OBSTACK_CHUNK_ALLOC xmalloc
+#endif
+
+#ifndef OBSTACK_CHUNK_FREE
+#define OBSTACK_CHUNK_FREE free
+#endif
+
+#if ! defined __GNUC__ || __GNUC__ < 2
+#define __alignof__(type) 0
+#endif
+
+ obstack_specify_allocation (&ebitset_obstack, OBSTACK_CHUNK_SIZE,
+ __alignof__ (ebitset_elt),
+ OBSTACK_CHUNK_ALLOC,
+ OBSTACK_CHUNK_FREE);
+ }
+
+ /* Perhaps we should add a number of new elements to the free
+ list. */
+ elt = (ebitset_elt *) obstack_alloc (&ebitset_obstack,
+ sizeof (ebitset_elt));
+ }
+
+ return elt;
+}
+
+
+/* Allocate a ebitset element. The bits are cleared. */
+static inline ebitset_elt *
+ebitset_elt_calloc (void)
+{
+ ebitset_elt *elt;
+
+ elt = ebitset_elt_alloc ();
+ memset (EBITSET_WORDS (elt), 0, sizeof (EBITSET_WORDS (elt)));
+ return elt;
+}
+
+
+static inline void
+ebitset_elt_free (ebitset_elt *elt)
+{
+ EBITSET_NEXT (elt) = ebitset_free_list;
+ ebitset_free_list = elt;
+}
+
+
+/* Remove element with index EINDEX from bitset BSET. */
+static inline void
+ebitset_elt_remove (bitset bset, bitset_windex eindex)
+{
+ ebitset_elts *elts;
+ ebitset_elt *elt;
+
+ elts = EBITSET_ELTS (bset);
+
+ elt = elts[eindex];
+
+ elts[eindex] = 0;
+ ebitset_elt_free (elt);
+}
+
+
+/* Add ELT into elts at index EINDEX of bitset BSET. */
+static inline void
+ebitset_elt_add (bitset bset, ebitset_elt *elt, bitset_windex eindex)
+{
+ ebitset_elts *elts;
+
+ elts = EBITSET_ELTS (bset);
+ /* Assume that the elts entry not allocated. */
+ elts[eindex] = elt;
+}
+
+
+/* Are all bits in an element zero? */
+static inline bool
+ebitset_elt_zero_p (ebitset_elt *elt)
+{
+ int i;
+
+ for (i = 0; i < EBITSET_ELT_WORDS; i++)
+ if (EBITSET_WORDS (elt)[i])
+ return false;
+
+ return true;
+}
+
+
+static ebitset_elt *
+ebitset_elt_find (bitset bset, bitset_bindex bindex,
+ enum ebitset_find_mode mode)
+{
+ ebitset_elt *elt;
+ bitset_windex size;
+ bitset_windex eindex;
+ ebitset_elts *elts;
+
+ eindex = bindex / EBITSET_ELT_BITS;
+
+ elts = EBITSET_ELTS (bset);
+ size = EBITSET_SIZE (bset);
+
+ if (eindex < size)
+ {
+ if ((elt = elts[eindex]))
+ {
+ if (EBITSET_WORDS (elt) == bset->b.cdata)
+ return elt;
+
+ EBITSET_CACHE_SET (bset, eindex);
+ return elt;
+ }
+ }
+
+ /* The element could not be found. */
+
+ switch (mode)
+ {
+ default:
+ abort ();
+
+ case EBITSET_FIND:
+ return 0;
+
+ case EBITSET_CREATE:
+ if (eindex >= size)
+ ebitset_resize (bset, bindex);
+
+ /* Create a new element. */
+ elt = ebitset_elt_calloc ();
+ ebitset_elt_add (bset, elt, eindex);
+ EBITSET_CACHE_SET (bset, eindex);
+ return elt;
+
+ case EBITSET_SUBST:
+ return &ebitset_zero_elts[0];
+ }
+}
+
+
+/* Weed out the zero elements from the elts. */
+static inline bitset_windex
+ebitset_weed (bitset bset)
+{
+ ebitset_elts *elts;
+ bitset_windex j;
+ bitset_windex count;
+
+ if (EBITSET_ZERO_P (bset))
+ return 0;
+
+ elts = EBITSET_ELTS (bset);
+ count = 0;
+ for (j = 0; j < EBITSET_SIZE (bset); j++)
+ {
+ ebitset_elt *elt = elts[j];
+
+ if (elt)
+ {
+ if (ebitset_elt_zero_p (elt))
+ {
+ ebitset_elt_remove (bset, j);
+ count++;
+ }
+ }
+ else
+ count++;
+ }
+
+ count = j - count;
+ if (!count)
+ {
+ /* All the bits are zero. We could shrink the elts.
+ For now just mark BSET as known to be zero. */
+ EBITSET_ZERO_SET (bset);
+ }
+ else
+ EBITSET_NONZERO_SET (bset);
+
+ return count;
+}
+
+
+/* Set all bits in the bitset to zero. */
+static inline void
+ebitset_zero (bitset bset)
+{
+ ebitset_elts *elts;
+ bitset_windex j;
+
+ if (EBITSET_ZERO_P (bset))
+ return;
+
+ elts = EBITSET_ELTS (bset);
+ for (j = 0; j < EBITSET_SIZE (bset); j++)
+ {
+ ebitset_elt *elt = elts[j];
+
+ if (elt)
+ ebitset_elt_remove (bset, j);
+ }
+
+ /* All the bits are zero. We could shrink the elts.
+ For now just mark BSET as known to be zero. */
+ EBITSET_ZERO_SET (bset);
+}
+
+
+static inline bool
+ebitset_equal_p (bitset dst, bitset src)
+{
+ ebitset_elts *selts;
+ ebitset_elts *delts;
+ bitset_windex j;
+
+ if (src == dst)
+ return true;
+
+ ebitset_weed (dst);
+ ebitset_weed (src);
+
+ if (EBITSET_SIZE (src) != EBITSET_SIZE (dst))
+ return false;
+
+ selts = EBITSET_ELTS (src);
+ delts = EBITSET_ELTS (dst);
+
+ for (j = 0; j < EBITSET_SIZE (src); j++)
+ {
+ unsigned int i;
+ ebitset_elt *selt = selts[j];
+ ebitset_elt *delt = delts[j];
+
+ if (!selt && !delt)
+ continue;
+ if ((selt && !delt) || (!selt && delt))
+ return false;
+
+ for (i = 0; i < EBITSET_ELT_WORDS; i++)
+ if (EBITSET_WORDS (selt)[i] != EBITSET_WORDS (delt)[i])
+ return false;
+ }
+ return true;
+}
+
+
+/* Copy bits from bitset SRC to bitset DST. */
+static inline void
+ebitset_copy_ (bitset dst, bitset src)
+{
+ ebitset_elts *selts;
+ ebitset_elts *delts;
+ bitset_windex j;
+
+ if (src == dst)
+ return;
+
+ ebitset_zero (dst);
+
+ if (BITSET_NBITS_ (dst) != BITSET_NBITS_ (src))
+ ebitset_resize (dst, BITSET_NBITS_ (src));
+
+ selts = EBITSET_ELTS (src);
+ delts = EBITSET_ELTS (dst);
+ for (j = 0; j < EBITSET_SIZE (src); j++)
+ {
+ ebitset_elt *selt = selts[j];
+
+ if (selt)
+ {
+ ebitset_elt *tmp;
+
+ tmp = ebitset_elt_alloc ();
+ delts[j] = tmp;
+ memcpy (EBITSET_WORDS (tmp), EBITSET_WORDS (selt),
+ sizeof (EBITSET_WORDS (selt)));
+ }
+ }
+ EBITSET_NONZERO_SET (dst);
+}
+
+
+/* Copy bits from bitset SRC to bitset DST. Return true if
+ bitsets different. */
+static inline bool
+ebitset_copy_cmp (bitset dst, bitset src)
+{
+ if (src == dst)
+ return false;
+
+ if (EBITSET_ZERO_P (dst))
+ {
+ ebitset_copy_ (dst, src);
+ return !EBITSET_ZERO_P (src);
+ }
+
+ if (ebitset_equal_p (dst, src))
+ return false;
+
+ ebitset_copy_ (dst, src);
+ return true;
+}
+
+
+/* Set bit BITNO in bitset DST. */
+static void
+ebitset_set (bitset dst, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+
+ ebitset_elt_find (dst, bitno, EBITSET_CREATE);
+
+ dst->b.cdata[windex - dst->b.cindex] |=
+ (bitset_word) 1 << (bitno % BITSET_WORD_BITS);
+}
+
+
+/* Reset bit BITNO in bitset DST. */
+static void
+ebitset_reset (bitset dst, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+
+ if (!ebitset_elt_find (dst, bitno, EBITSET_FIND))
+ return;
+
+ dst->b.cdata[windex - dst->b.cindex] &=
+ ~((bitset_word) 1 << (bitno % BITSET_WORD_BITS));
+
+ /* If all the data is zero, perhaps we should remove it now...
+ However, there is a good chance that the element will be needed
+ again soon. */
+}
+
+
+/* Test bit BITNO in bitset SRC. */
+static bool
+ebitset_test (bitset src, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+
+ return (ebitset_elt_find (src, bitno, EBITSET_FIND)
+ && ((src->b.cdata[windex - src->b.cindex]
+ >> (bitno % BITSET_WORD_BITS))
+ & 1));
+}
+
+
+static void
+ebitset_free (bitset bset)
+{
+ ebitset_zero (bset);
+ free (EBITSET_ELTS (bset));
+}
+
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT and store in array LIST. Return with actual number of bits
+ found and with *NEXT indicating where search stopped. */
+static bitset_bindex
+ebitset_list_reverse (bitset bset, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex n_bits;
+ bitset_bindex bitno;
+ bitset_bindex rbitno;
+ unsigned int bcount;
+ bitset_bindex boffset;
+ bitset_windex windex;
+ bitset_windex eindex;
+ bitset_windex woffset;
+ bitset_bindex count;
+ bitset_windex size;
+ ebitset_elts *elts;
+
+ if (EBITSET_ZERO_P (bset))
+ return 0;
+
+ size = EBITSET_SIZE (bset);
+ n_bits = size * EBITSET_ELT_BITS;
+ rbitno = *next;
+
+ if (rbitno >= n_bits)
+ return 0;
+
+ elts = EBITSET_ELTS (bset);
+
+ bitno = n_bits - (rbitno + 1);
+
+ windex = bitno / BITSET_WORD_BITS;
+ eindex = bitno / EBITSET_ELT_BITS;
+ woffset = windex - eindex * EBITSET_ELT_WORDS;
+
+ /* If num is 1, we could speed things up with a binary search
+ of the word of interest. */
+
+ count = 0;
+ bcount = bitno % BITSET_WORD_BITS;
+ boffset = windex * BITSET_WORD_BITS;
+
+ do
+ {
+ ebitset_elt *elt;
+ bitset_word *srcp;
+
+ elt = elts[eindex];
+ if (elt)
+ {
+ srcp = EBITSET_WORDS (elt);
+
+ do
+ {
+ bitset_word word;
+
+ word = srcp[woffset] << (BITSET_WORD_BITS - 1 - bcount);
+
+ for (; word; bcount--)
+ {
+ if (word & BITSET_MSB)
+ {
+ list[count++] = boffset + bcount;
+ if (count >= num)
+ {
+ *next = n_bits - (boffset + bcount);
+ return count;
+ }
+ }
+ word <<= 1;
+ }
+ boffset -= BITSET_WORD_BITS;
+ bcount = BITSET_WORD_BITS - 1;
+ }
+ while (woffset--);
+ }
+
+ woffset = EBITSET_ELT_WORDS - 1;
+ boffset = eindex * EBITSET_ELT_BITS - BITSET_WORD_BITS;
+ }
+ while (eindex--);
+
+ *next = n_bits - (boffset + 1);
+ return count;
+}
+
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT and store in array LIST. Return with actual number of bits
+ found and with *NEXT indicating where search stopped. */
+static bitset_bindex
+ebitset_list (bitset bset, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex bitno;
+ bitset_windex windex;
+ bitset_windex eindex;
+ bitset_bindex count;
+ bitset_windex size;
+ ebitset_elt *elt;
+ bitset_word word;
+ ebitset_elts *elts;
+
+ if (EBITSET_ZERO_P (bset))
+ return 0;
+
+ bitno = *next;
+ count = 0;
+
+ elts = EBITSET_ELTS (bset);
+ size = EBITSET_SIZE (bset);
+ eindex = bitno / EBITSET_ELT_BITS;
+
+ if (bitno % EBITSET_ELT_BITS)
+ {
+ /* We need to start within an element. This is not very common. */
+
+ elt = elts[eindex];
+ if (elt)
+ {
+ bitset_windex woffset;
+ bitset_word *srcp = EBITSET_WORDS (elt);
+
+ windex = bitno / BITSET_WORD_BITS;
+ woffset = eindex * EBITSET_ELT_WORDS;
+
+ for (; (windex - woffset) < EBITSET_ELT_WORDS; windex++)
+ {
+ word = srcp[windex - woffset] >> (bitno % BITSET_WORD_BITS);
+
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ bitno = (windex + 1) * BITSET_WORD_BITS;
+ }
+ }
+
+ /* Skip to next element. */
+ eindex++;
+ }
+
+ /* If num is 1, we could speed things up with a binary search
+ of the word of interest. */
+
+ for (; eindex < size; eindex++)
+ {
+ int i;
+ bitset_word *srcp;
+
+ elt = elts[eindex];
+ if (!elt)
+ continue;
+
+ srcp = EBITSET_WORDS (elt);
+ windex = eindex * EBITSET_ELT_WORDS;
+
+ if ((count + EBITSET_ELT_BITS) < num)
+ {
+ /* The coast is clear, plant boot! */
+
+#if EBITSET_ELT_WORDS == 2
+ word = srcp[0];
+ if (word)
+ {
+ if (!(word & 0xffff))
+ {
+ word >>= 16;
+ bitno += 16;
+ }
+ if (!(word & 0xff))
+ {
+ word >>= 8;
+ bitno += 8;
+ }
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ windex++;
+ bitno = windex * BITSET_WORD_BITS;
+
+ word = srcp[1];
+ if (word)
+ {
+ if (!(word & 0xffff))
+ {
+ word >>= 16;
+ bitno += 16;
+ }
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ windex++;
+ bitno = windex * BITSET_WORD_BITS;
+#else
+ for (i = 0; i < EBITSET_ELT_WORDS; i++, windex++)
+ {
+ bitno = windex * BITSET_WORD_BITS;
+
+ word = srcp[i];
+ if (word)
+ {
+ if (!(word & 0xffff))
+ {
+ word >>= 16;
+ bitno += 16;
+ }
+ if (!(word & 0xff))
+ {
+ word >>= 8;
+ bitno += 8;
+ }
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ }
+#endif
+ }
+ else
+ {
+ /* Tread more carefully since we need to check
+ if array overflows. */
+
+ for (i = 0; i < EBITSET_ELT_WORDS; i++, windex++)
+ {
+ bitno = windex * BITSET_WORD_BITS;
+
+ for (word = srcp[i]; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ }
+ }
+ }
+
+ *next = bitno;
+ return count;
+}
+
+
+/* Ensure that any unused bits within the last element are clear. */
+static inline void
+ebitset_unused_clear (bitset dst)
+{
+ unsigned int last_bit;
+ bitset_bindex n_bits;
+
+ n_bits = BITSET_NBITS_ (dst);
+ last_bit = n_bits % EBITSET_ELT_BITS;
+
+ if (last_bit)
+ {
+ bitset_windex eindex;
+ ebitset_elts *elts;
+ ebitset_elt *elt;
+
+ elts = EBITSET_ELTS (dst);
+
+ eindex = n_bits / EBITSET_ELT_BITS;
+
+ elt = elts[eindex];
+ if (elt)
+ {
+ bitset_windex windex;
+ bitset_windex woffset;
+ bitset_word *srcp = EBITSET_WORDS (elt);
+
+ windex = n_bits / BITSET_WORD_BITS;
+ woffset = eindex * EBITSET_ELT_WORDS;
+
+ srcp[windex - woffset] &= ((bitset_word) 1 << last_bit) - 1;
+ windex++;
+ for (; (windex - woffset) < EBITSET_ELT_WORDS; windex++)
+ srcp[windex - woffset] = 0;
+ }
+ }
+}
+
+
+static void
+ebitset_ones (bitset dst)
+{
+ bitset_windex j;
+ ebitset_elt *elt;
+
+ for (j = 0; j < EBITSET_SIZE (dst); j++)
+ {
+ /* Create new elements if they cannot be found. Perhaps
+ we should just add pointers to a ones element? */
+ elt =
+ ebitset_elt_find (dst, j * EBITSET_ELT_BITS, EBITSET_CREATE);
+ memset (EBITSET_WORDS (elt), -1, sizeof (EBITSET_WORDS (elt)));
+ }
+ EBITSET_NONZERO_SET (dst);
+ ebitset_unused_clear (dst);
+}
+
+
+static bool
+ebitset_empty_p (bitset dst)
+{
+ ebitset_elts *elts;
+ bitset_windex j;
+
+ if (EBITSET_ZERO_P (dst))
+ return 1;
+
+ elts = EBITSET_ELTS (dst);
+ for (j = 0; j < EBITSET_SIZE (dst); j++)
+ {
+ ebitset_elt *elt = elts[j];
+
+ if (elt)
+ {
+ if (!ebitset_elt_zero_p (elt))
+ return 0;
+ /* Do some weeding as we go. */
+ ebitset_elt_remove (dst, j);
+ }
+ }
+
+ /* All the bits are zero. We could shrink the elts.
+ For now just mark DST as known to be zero. */
+ EBITSET_ZERO_SET (dst);
+ return 1;
+}
+
+
+static void
+ebitset_not (bitset dst, bitset src)
+{
+ unsigned int i;
+ ebitset_elt *selt;
+ ebitset_elt *delt;
+ bitset_windex j;
+
+ ebitset_resize (dst, BITSET_NBITS_ (src));
+
+ for (j = 0; j < EBITSET_SIZE (src); j++)
+ {
+ /* Create new elements for dst if they cannot be found
+ or substitute zero elements if src elements not found. */
+ selt =
+ ebitset_elt_find (dst, j * EBITSET_ELT_BITS, EBITSET_SUBST);
+ delt =
+ ebitset_elt_find (dst, j * EBITSET_ELT_BITS, EBITSET_CREATE);
+
+ for (i = 0; i < EBITSET_ELT_WORDS; i++)
+ EBITSET_WORDS (delt)[i] = ~EBITSET_WORDS (selt)[i];
+ }
+ EBITSET_NONZERO_SET (dst);
+ ebitset_unused_clear (dst);
+}
+
+
+/* Is DST == DST | SRC? */
+static bool
+ebitset_subset_p (bitset dst, bitset src)
+{
+ bitset_windex j;
+ ebitset_elts *selts;
+ ebitset_elts *delts;
+ bitset_windex ssize;
+ bitset_windex dsize;
+
+ selts = EBITSET_ELTS (src);
+ delts = EBITSET_ELTS (dst);
+
+ ssize = EBITSET_SIZE (src);
+ dsize = EBITSET_SIZE (dst);
+
+ for (j = 0; j < ssize; j++)
+ {
+ unsigned int i;
+ ebitset_elt *selt;
+ ebitset_elt *delt;
+
+ selt = j < ssize ? selts[j] : 0;
+ delt = j < dsize ? delts[j] : 0;
+
+ if (!selt && !delt)
+ continue;
+
+ if (!selt)
+ selt = &ebitset_zero_elts[0];
+ if (!delt)
+ delt = &ebitset_zero_elts[0];
+
+ for (i = 0; i < EBITSET_ELT_WORDS; i++)
+ if (EBITSET_WORDS (delt)[i]
+ != (EBITSET_WORDS (selt)[i] | EBITSET_WORDS (delt)[i]))
+ return false;
+ }
+ return true;
+}
+
+
+/* Is DST & SRC == 0? */
+static bool
+ebitset_disjoint_p (bitset dst, bitset src)
+{
+ bitset_windex j;
+ ebitset_elts *selts;
+ ebitset_elts *delts;
+ bitset_windex ssize;
+ bitset_windex dsize;
+
+ selts = EBITSET_ELTS (src);
+ delts = EBITSET_ELTS (dst);
+
+ ssize = EBITSET_SIZE (src);
+ dsize = EBITSET_SIZE (dst);
+
+ for (j = 0; j < ssize; j++)
+ {
+ unsigned int i;
+ ebitset_elt *selt;
+ ebitset_elt *delt;
+
+ selt = j < ssize ? selts[j] : 0;
+ delt = j < dsize ? delts[j] : 0;
+
+ if (!selt || !delt)
+ continue;
+
+ for (i = 0; i < EBITSET_ELT_WORDS; i++)
+ if ((EBITSET_WORDS (selt)[i] & EBITSET_WORDS (delt)[i]))
+ return false;
+ }
+ return true;
+}
+
+
+
+static bool
+ebitset_op3_cmp (bitset dst, bitset src1, bitset src2, enum bitset_ops op)
+{
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+ bitset_windex size;
+ ebitset_elts *selts1;
+ ebitset_elts *selts2;
+ ebitset_elts *delts;
+ bitset_word *srcp1;
+ bitset_word *srcp2;
+ bitset_word *dstp;
+ bool changed = false;
+ unsigned int i;
+ bitset_windex j;
+
+ ebitset_resize (dst, max (BITSET_NBITS_ (src1), BITSET_NBITS_ (src2)));
+
+ ssize1 = EBITSET_SIZE (src1);
+ ssize2 = EBITSET_SIZE (src2);
+ dsize = EBITSET_SIZE (dst);
+ size = ssize1;
+ if (size < ssize2)
+ size = ssize2;
+
+ selts1 = EBITSET_ELTS (src1);
+ selts2 = EBITSET_ELTS (src2);
+ delts = EBITSET_ELTS (dst);
+
+ for (j = 0; j < size; j++)
+ {
+ ebitset_elt *selt1;
+ ebitset_elt *selt2;
+ ebitset_elt *delt;
+
+ selt1 = j < ssize1 ? selts1[j] : 0;
+ selt2 = j < ssize2 ? selts2[j] : 0;
+ delt = j < dsize ? delts[j] : 0;
+
+ if (!selt1 && !selt2)
+ {
+ if (delt)
+ {
+ changed = true;
+ ebitset_elt_remove (dst, j);
+ }
+ continue;
+ }
+
+ if (!selt1)
+ selt1 = &ebitset_zero_elts[0];
+ if (!selt2)
+ selt2 = &ebitset_zero_elts[0];
+ if (!delt)
+ delt = ebitset_elt_calloc ();
+ else
+ delts[j] = 0;
+
+ srcp1 = EBITSET_WORDS (selt1);
+ srcp2 = EBITSET_WORDS (selt2);
+ dstp = EBITSET_WORDS (delt);
+ switch (op)
+ {
+ default:
+ abort ();
+
+ case BITSET_OP_OR:
+ for (i = 0; i < EBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ | *srcp2++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+
+ case BITSET_OP_AND:
+ for (i = 0; i < EBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ & *srcp2++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+
+ case BITSET_OP_XOR:
+ for (i = 0; i < EBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ ^ *srcp2++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+
+ case BITSET_OP_ANDN:
+ for (i = 0; i < EBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ & ~(*srcp2++);
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+ }
+
+ if (!ebitset_elt_zero_p (delt))
+ {
+ ebitset_elt_add (dst, delt, j);
+ }
+ else
+ {
+ ebitset_elt_free (delt);
+ }
+ }
+
+ /* If we have elements of DST left over, free them all. */
+ for (; j < dsize; j++)
+ {
+ ebitset_elt *delt;
+
+ changed = true;
+
+ delt = delts[j];
+
+ if (delt)
+ ebitset_elt_remove (dst, j);
+ }
+
+ EBITSET_NONZERO_SET (dst);
+ return changed;
+}
+
+
+static bool
+ebitset_and_cmp (bitset dst, bitset src1, bitset src2)
+{
+ bool changed;
+
+ if (EBITSET_ZERO_P (src2))
+ {
+ ebitset_weed (dst);
+ changed = EBITSET_ZERO_P (dst);
+ ebitset_zero (dst);
+ return changed;
+ }
+ else if (EBITSET_ZERO_P (src1))
+ {
+ ebitset_weed (dst);
+ changed = EBITSET_ZERO_P (dst);
+ ebitset_zero (dst);
+ return changed;
+ }
+ return ebitset_op3_cmp (dst, src1, src2, BITSET_OP_AND);
+}
+
+
+static void
+ebitset_and (bitset dst, bitset src1, bitset src2)
+{
+ ebitset_and_cmp (dst, src1, src2);
+}
+
+
+static bool
+ebitset_andn_cmp (bitset dst, bitset src1, bitset src2)
+{
+ bool changed;
+
+ if (EBITSET_ZERO_P (src2))
+ {
+ return ebitset_copy_cmp (dst, src1);
+ }
+ else if (EBITSET_ZERO_P (src1))
+ {
+ ebitset_weed (dst);
+ changed = EBITSET_ZERO_P (dst);
+ ebitset_zero (dst);
+ return changed;
+ }
+ return ebitset_op3_cmp (dst, src1, src2, BITSET_OP_ANDN);
+}
+
+
+static void
+ebitset_andn (bitset dst, bitset src1, bitset src2)
+{
+ ebitset_andn_cmp (dst, src1, src2);
+}
+
+
+static bool
+ebitset_or_cmp (bitset dst, bitset src1, bitset src2)
+{
+ if (EBITSET_ZERO_P (src2))
+ {
+ return ebitset_copy_cmp (dst, src1);
+ }
+ else if (EBITSET_ZERO_P (src1))
+ {
+ return ebitset_copy_cmp (dst, src2);
+ }
+ return ebitset_op3_cmp (dst, src1, src2, BITSET_OP_OR);
+}
+
+
+static void
+ebitset_or (bitset dst, bitset src1, bitset src2)
+{
+ ebitset_or_cmp (dst, src1, src2);
+}
+
+
+static bool
+ebitset_xor_cmp (bitset dst, bitset src1, bitset src2)
+{
+ if (EBITSET_ZERO_P (src2))
+ {
+ return ebitset_copy_cmp (dst, src1);
+ }
+ else if (EBITSET_ZERO_P (src1))
+ {
+ return ebitset_copy_cmp (dst, src2);
+ }
+ return ebitset_op3_cmp (dst, src1, src2, BITSET_OP_XOR);
+}
+
+
+static void
+ebitset_xor (bitset dst, bitset src1, bitset src2)
+{
+ ebitset_xor_cmp (dst, src1, src2);
+}
+
+
+static void
+ebitset_copy (bitset dst, bitset src)
+{
+ if (BITSET_COMPATIBLE_ (dst, src))
+ ebitset_copy_ (dst, src);
+ else
+ bitset_copy_ (dst, src);
+}
+
+
+/* Vector of operations for linked-list bitsets. */
+struct bitset_vtable ebitset_vtable = {
+ ebitset_set,
+ ebitset_reset,
+ bitset_toggle_,
+ ebitset_test,
+ ebitset_resize,
+ bitset_size_,
+ bitset_count_,
+ ebitset_empty_p,
+ ebitset_ones,
+ ebitset_zero,
+ ebitset_copy,
+ ebitset_disjoint_p,
+ ebitset_equal_p,
+ ebitset_not,
+ ebitset_subset_p,
+ ebitset_and,
+ ebitset_and_cmp,
+ ebitset_andn,
+ ebitset_andn_cmp,
+ ebitset_or,
+ ebitset_or_cmp,
+ ebitset_xor,
+ ebitset_xor_cmp,
+ bitset_and_or_,
+ bitset_and_or_cmp_,
+ bitset_andn_or_,
+ bitset_andn_or_cmp_,
+ bitset_or_and_,
+ bitset_or_and_cmp_,
+ ebitset_list,
+ ebitset_list_reverse,
+ ebitset_free,
+ BITSET_TABLE
+};
+
+
+/* Return size of initial structure. */
+size_t
+ebitset_bytes (bitset_bindex n_bits ATTRIBUTE_UNUSED)
+{
+ return sizeof (struct ebitset_struct);
+}
+
+
+/* Initialize a bitset. */
+
+bitset
+ebitset_init (bitset bset, bitset_bindex n_bits)
+{
+ bitset_windex size;
+
+ bset->b.vtable = &ebitset_vtable;
+
+ bset->b.csize = EBITSET_ELT_WORDS;
+
+ EBITSET_ZERO_SET (bset);
+
+ size = n_bits ? (n_bits + EBITSET_ELT_BITS - 1) / EBITSET_ELT_BITS
+ : EBITSET_INITIAL_SIZE;
+
+ EBITSET_ASIZE (bset) = 0;
+ EBITSET_ELTS (bset) = 0;
+ ebitset_resize (bset, n_bits);
+
+ return bset;
+}
+
+
+void
+ebitset_release_memory (void)
+{
+ ebitset_free_list = 0;
+ if (ebitset_obstack_init)
+ {
+ ebitset_obstack_init = false;
+ obstack_free (&ebitset_obstack, NULL);
+ }
+}
diff --git a/lib/ebitset.h b/lib/ebitset.h
new file mode 100644
index 0000000..dc60273
--- /dev/null
+++ b/lib/ebitset.h
@@ -0,0 +1,30 @@
+/* Functions to support ebitsets.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _EBITSET_H
+#define _EBITSET_H
+
+#include "bitset.h"
+
+extern size_t ebitset_bytes (bitset_bindex);
+
+extern bitset ebitset_init (bitset, bitset_bindex);
+
+extern void ebitset_release_memory (void);
+
+#endif
diff --git a/lib/error.c b/lib/error.c
new file mode 100644
index 0000000..45698be
--- /dev/null
+++ b/lib/error.c
@@ -0,0 +1,304 @@
+/* Error handler for noninteractive utilities
+ Copyright (C) 1990-1998, 2000-2003, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "error.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if !_LIBC && ENABLE_NLS
+# include "gettext.h"
+#endif
+
+#ifdef _LIBC
+# include <wchar.h>
+# define mbsrtowcs __mbsrtowcs
+#endif
+
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
+
+#ifndef _
+# define _(String) String
+#endif
+
+/* If NULL, error will flush stdout, then print on stderr the program
+ name, a colon and a space. Otherwise, error will call this
+ function without parameters instead. */
+void (*error_print_progname) (void);
+
+/* This variable is incremented each time `error' is called. */
+unsigned int error_message_count;
+
+#ifdef _LIBC
+/* In the GNU C library, there is a predefined variable for this. */
+
+# define program_name program_invocation_name
+# include <errno.h>
+# include <libio/libioP.h>
+
+/* In GNU libc we want do not want to use the common name `error' directly.
+ Instead make it a weak alias. */
+extern void __error (int status, int errnum, const char *message, ...)
+ __attribute__ ((__format__ (__printf__, 3, 4)));
+extern void __error_at_line (int status, int errnum, const char *file_name,
+ unsigned int line_number, const char *message,
+ ...)
+ __attribute__ ((__format__ (__printf__, 5, 6)));;
+# define error __error
+# define error_at_line __error_at_line
+
+# include <libio/iolibio.h>
+# define fflush(s) INTUSE(_IO_fflush) (s)
+# undef putc
+# define putc(c, fp) INTUSE(_IO_putc) (c, fp)
+
+# include <bits/libc-lock.h>
+
+#else /* not _LIBC */
+
+# if !HAVE_DECL_STRERROR_R && STRERROR_R_CHAR_P
+# ifndef HAVE_DECL_STRERROR_R
+"this configure-time declaration test was not run"
+# endif
+char *strerror_r ();
+# endif
+
+# ifndef SIZE_MAX
+# define SIZE_MAX ((size_t) -1)
+# endif
+
+/* The calling program should define program_name and set it to the
+ name of the executing program. */
+extern char *program_name;
+
+# if HAVE_STRERROR_R || defined strerror_r
+# define __strerror_r strerror_r
+# endif
+#endif /* not _LIBC */
+
+static void
+print_errno_message (int errnum)
+{
+ char const *s = NULL;
+
+#if defined HAVE_STRERROR_R || _LIBC
+ char errbuf[1024];
+# if STRERROR_R_CHAR_P || _LIBC
+ s = __strerror_r (errnum, errbuf, sizeof errbuf);
+# else
+ if (__strerror_r (errnum, errbuf, sizeof errbuf) == 0)
+ s = errbuf;
+# endif
+#endif
+
+#if !_LIBC
+ if (! s && ! (s = strerror (errnum)))
+ s = _("Unknown system error");
+#endif
+
+#if _LIBC
+ if (_IO_fwide (stderr, 0) > 0)
+ {
+ __fwprintf (stderr, L": %s", s);
+ return;
+ }
+#endif
+
+ fprintf (stderr, ": %s", s);
+}
+
+static void
+error_tail (int status, int errnum, const char *message, va_list args)
+{
+#if _LIBC
+ if (_IO_fwide (stderr, 0) > 0)
+ {
+# define ALLOCA_LIMIT 2000
+ size_t len = strlen (message) + 1;
+ const wchar_t *wmessage = L"out of memory";
+ wchar_t *wbuf = (len < ALLOCA_LIMIT
+ ? alloca (len * sizeof *wbuf)
+ : len <= SIZE_MAX / sizeof *wbuf
+ ? malloc (len * sizeof *wbuf)
+ : NULL);
+
+ if (wbuf)
+ {
+ size_t res;
+ mbstate_t st;
+ const char *tmp = message;
+ memset (&st, '\0', sizeof (st));
+ res = mbsrtowcs (wbuf, &tmp, len, &st);
+ wmessage = res == (size_t) -1 ? L"???" : wbuf;
+ }
+
+ __vfwprintf (stderr, wmessage, args);
+ if (! (len < ALLOCA_LIMIT))
+ free (wbuf);
+ }
+ else
+#endif
+ vfprintf (stderr, message, args);
+ va_end (args);
+
+ ++error_message_count;
+ if (errnum)
+ print_errno_message (errnum);
+#if _LIBC
+ if (_IO_fwide (stderr, 0) > 0)
+ putwc (L'\n', stderr);
+ else
+#endif
+ putc ('\n', stderr);
+ fflush (stderr);
+ if (status)
+ exit (status);
+}
+
+
+/* Print the program name and error message MESSAGE, which is a printf-style
+ format string with optional args.
+ If ERRNUM is nonzero, print its corresponding system error message.
+ Exit with status STATUS if it is nonzero. */
+void
+error (int status, int errnum, const char *message, ...)
+{
+ va_list args;
+
+#if defined _LIBC && defined __libc_ptf_call
+ /* We do not want this call to be cut short by a thread
+ cancellation. Therefore disable cancellation for now. */
+ int state = PTHREAD_CANCEL_ENABLE;
+ __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
+ 0);
+#endif
+
+ fflush (stdout);
+#ifdef _LIBC
+ _IO_flockfile (stderr);
+#endif
+ if (error_print_progname)
+ (*error_print_progname) ();
+ else
+ {
+#if _LIBC
+ if (_IO_fwide (stderr, 0) > 0)
+ __fwprintf (stderr, L"%s: ", program_name);
+ else
+#endif
+ fprintf (stderr, "%s: ", program_name);
+ }
+
+ va_start (args, message);
+ error_tail (status, errnum, message, args);
+
+#ifdef _LIBC
+ _IO_funlockfile (stderr);
+# ifdef __libc_ptf_call
+ __libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
+# endif
+#endif
+}
+
+/* Sometimes we want to have at most one error per line. This
+ variable controls whether this mode is selected or not. */
+int error_one_per_line;
+
+void
+error_at_line (int status, int errnum, const char *file_name,
+ unsigned int line_number, const char *message, ...)
+{
+ va_list args;
+
+ if (error_one_per_line)
+ {
+ static const char *old_file_name;
+ static unsigned int old_line_number;
+
+ if (old_line_number == line_number
+ && (file_name == old_file_name
+ || strcmp (old_file_name, file_name) == 0))
+ /* Simply return and print nothing. */
+ return;
+
+ old_file_name = file_name;
+ old_line_number = line_number;
+ }
+
+#if defined _LIBC && defined __libc_ptf_call
+ /* We do not want this call to be cut short by a thread
+ cancellation. Therefore disable cancellation for now. */
+ int state = PTHREAD_CANCEL_ENABLE;
+ __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
+ 0);
+#endif
+
+ fflush (stdout);
+#ifdef _LIBC
+ _IO_flockfile (stderr);
+#endif
+ if (error_print_progname)
+ (*error_print_progname) ();
+ else
+ {
+#if _LIBC
+ if (_IO_fwide (stderr, 0) > 0)
+ __fwprintf (stderr, L"%s: ", program_name);
+ else
+#endif
+ fprintf (stderr, "%s:", program_name);
+ }
+
+ if (file_name != NULL)
+ {
+#if _LIBC
+ if (_IO_fwide (stderr, 0) > 0)
+ __fwprintf (stderr, L"%s:%d: ", file_name, line_number);
+ else
+#endif
+ fprintf (stderr, "%s:%d: ", file_name, line_number);
+ }
+
+ va_start (args, message);
+ error_tail (status, errnum, message, args);
+
+#ifdef _LIBC
+ _IO_funlockfile (stderr);
+# ifdef __libc_ptf_call
+ __libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
+# endif
+#endif
+}
+
+#ifdef _LIBC
+/* Make the weak alias. */
+# undef error
+# undef error_at_line
+weak_alias (__error, error)
+weak_alias (__error_at_line, error_at_line)
+#endif
diff --git a/lib/error.h b/lib/error.h
new file mode 100644
index 0000000..e5220a2
--- /dev/null
+++ b/lib/error.h
@@ -0,0 +1,66 @@
+/* Declaration for error-reporting function
+ Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _ERROR_H
+#define _ERROR_H 1
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later. */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
+# define __attribute__(Spec) /* empty */
+# endif
+/* The __-protected variants of `format' and `printf' attributes
+ are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __format__ format
+# define __printf__ printf
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Print a message with `fprintf (stderr, FORMAT, ...)';
+ if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
+ If STATUS is nonzero, terminate the program with `exit (STATUS)'. */
+
+extern void error (int __status, int __errnum, const char *__format, ...)
+ __attribute__ ((__format__ (__printf__, 3, 4)));
+
+extern void error_at_line (int __status, int __errnum, const char *__fname,
+ unsigned int __lineno, const char *__format, ...)
+ __attribute__ ((__format__ (__printf__, 5, 6)));
+
+/* If NULL, error will flush stdout, then print on stderr the program
+ name, a colon and a space. Otherwise, error will call this
+ function without parameters instead. */
+extern void (*error_print_progname) (void);
+
+/* This variable is incremented each time `error' is called. */
+extern unsigned int error_message_count;
+
+/* Sometimes we want to have at most one error per line. This
+ variable controls whether this mode is selected or not. */
+extern int error_one_per_line;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* error.h */
diff --git a/lib/exit.h b/lib/exit.h
new file mode 100644
index 0000000..9dbfb7c
--- /dev/null
+++ b/lib/exit.h
@@ -0,0 +1,32 @@
+/* exit() function.
+ Copyright (C) 1995, 2001 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _EXIT_H
+#define _EXIT_H
+
+/* Get exit() declaration. */
+#include <stdlib.h>
+
+/* Some systems do not define EXIT_*, even with STDC_HEADERS. */
+#ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
+#endif
+#ifndef EXIT_FAILURE
+# define EXIT_FAILURE 1
+#endif
+
+#endif /* _EXIT_H */
diff --git a/lib/exitfail.c b/lib/exitfail.c
new file mode 100644
index 0000000..27d38c3
--- /dev/null
+++ b/lib/exitfail.c
@@ -0,0 +1,27 @@
+/* Failure exit status
+
+ Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING.
+ If not, write to the Free Software Foundation,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "exitfail.h"
+#include "exit.h"
+
+int volatile exit_failure = EXIT_FAILURE;
diff --git a/lib/exitfail.h b/lib/exitfail.h
new file mode 100644
index 0000000..e46cf9c
--- /dev/null
+++ b/lib/exitfail.h
@@ -0,0 +1,20 @@
+/* Failure exit status
+
+ Copyright (C) 2002 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING.
+ If not, write to the Free Software Foundation,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+extern int volatile exit_failure;
diff --git a/lib/fd-safer.c b/lib/fd-safer.c
new file mode 100644
index 0000000..5933bcb
--- /dev/null
+++ b/lib/fd-safer.c
@@ -0,0 +1,59 @@
+/* Return a safer copy of a file descriptor.
+
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "unistd-safer.h"
+
+#include <errno.h>
+
+#include <unistd.h>
+#ifndef STDIN_FILENO
+# define STDIN_FILENO 0
+#endif
+#ifndef STDERR_FILENO
+# define STDERR_FILENO 2
+#endif
+
+/* Return FD, unless FD would be a copy of standard input, output, or
+ error; in that case, return a duplicate of FD, closing FD. On
+ failure to duplicate, close FD, set errno, and return -1. Preserve
+ errno if FD is negative, so that the caller can always inspect
+ errno when the returned value is negative.
+
+ This function is usefully wrapped around functions that return file
+ descriptors, e.g., fd_safer (open ("file", O_RDONLY)). */
+
+int
+fd_safer (int fd)
+{
+ if (STDIN_FILENO <= fd && fd <= STDERR_FILENO)
+ {
+ int f = dup_safer (fd);
+ int e = errno;
+ close (fd);
+ errno = e;
+ fd = f;
+ }
+
+ return fd;
+}
diff --git a/lib/fopen-safer.c b/lib/fopen-safer.c
new file mode 100644
index 0000000..4f2ffa1
--- /dev/null
+++ b/lib/fopen-safer.c
@@ -0,0 +1,69 @@
+/* Invoke fopen, but avoid some glitches.
+ Copyright (C) 2001, 2004, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "stdio-safer.h"
+
+#include <errno.h>
+#include <unistd.h>
+#include "unistd-safer.h"
+
+#ifndef STDERR_FILENO
+# define STDERR_FILENO 2
+#endif
+
+/* Like fopen, but do not return stdin, stdout, or stderr. */
+
+FILE *
+fopen_safer (char const *file, char const *mode)
+{
+ FILE *fp = fopen (file, mode);
+
+ if (fp)
+ {
+ int fd = fileno (fp);
+
+ if (0 <= fd && fd <= STDERR_FILENO)
+ {
+ int f = dup_safer (fd);
+
+ if (f < 0)
+ {
+ int e = errno;
+ fclose (fp);
+ errno = e;
+ return NULL;
+ }
+
+ if (fclose (fp) != 0
+ || ! (fp = fdopen (f, mode)))
+ {
+ int e = errno;
+ close (f);
+ errno = e;
+ return NULL;
+ }
+ }
+ }
+
+ return fp;
+}
diff --git a/lib/get-errno.c b/lib/get-errno.c
new file mode 100644
index 0000000..8e8ef58
--- /dev/null
+++ b/lib/get-errno.c
@@ -0,0 +1,45 @@
+/* get-errno.c - get and set errno.
+
+ Copyright (C) 2002, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <errno.h>
+
+#include "get-errno.h"
+
+/* Get and set errno. A source file that needs to set or get errno,
+ but doesn't need to test for specific errno values, can use these
+ functions to avoid namespace pollution. For example, a file that
+ defines EQUAL should not include <errno.h>, since <errno.h> might
+ define EQUAL; such a file can include <get-errno.h> instead. */
+
+int
+get_errno (void)
+{
+ return errno;
+}
+
+void
+set_errno (int e)
+{
+ errno = e;
+}
diff --git a/lib/get-errno.h b/lib/get-errno.h
new file mode 100644
index 0000000..d39a8dd
--- /dev/null
+++ b/lib/get-errno.h
@@ -0,0 +1,20 @@
+/* get-errno.h - get and set errno.
+
+ Copyright (C) 2002 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+extern int get_errno (void);
+extern void set_errno (int);
diff --git a/lib/getopt.c b/lib/getopt.c
new file mode 100644
index 0000000..83bd6db
--- /dev/null
+++ b/lib/getopt.c
@@ -0,0 +1,1191 @@
+/* Getopt for GNU.
+ NOTE: getopt is now part of the C library, so if you don't know what
+ "Keep this file name-space clean" means, talk to drepper@gnu.org
+ before changing it!
+ Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002,2003,2004,2006
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "getopt.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifdef VMS
+# include <unixlib.h>
+#endif
+
+#ifdef _LIBC
+# include <libintl.h>
+#else
+# include "gettext.h"
+# define _(msgid) gettext (msgid)
+#endif
+
+#if defined _LIBC && defined USE_IN_LIBIO
+# include <wchar.h>
+#endif
+
+#ifndef attribute_hidden
+# define attribute_hidden
+#endif
+
+/* Unlike standard Unix `getopt', functions like `getopt_long'
+ let the user intersperse the options with the other arguments.
+
+ As `getopt_long' works, it permutes the elements of ARGV so that,
+ when it is done, all the options precede everything else. Thus
+ all application programs are extended to handle flexible argument order.
+
+ Using `getopt' or setting the environment variable POSIXLY_CORRECT
+ disables permutation.
+ Then the application's behavior is completely standard.
+
+ GNU application programs can use a third alternative mode in which
+ they can distinguish the relative order of options and other arguments. */
+
+#include "getopt_int.h"
+
+/* For communication from `getopt' to the caller.
+ When `getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `getopt'.
+
+ On entry to `getopt', zero means this is the first call; initialize.
+
+ When `getopt' returns -1, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+/* 1003.2 says this must be 1 before any call. */
+int optind = 1;
+
+/* Callers store zero here to inhibit the error message
+ for unrecognized options. */
+
+int opterr = 1;
+
+/* Set to an option character which was unrecognized.
+ This must be initialized on some systems to avoid linking in the
+ system's own getopt implementation. */
+
+int optopt = '?';
+
+/* Keep a global copy of all internal members of getopt_data. */
+
+static struct _getopt_data getopt_data;
+
+
+#if defined HAVE_DECL_GETENV && !HAVE_DECL_GETENV
+extern char *getenv ();
+#endif
+
+#ifdef _LIBC
+/* Stored original parameters.
+ XXX This is no good solution. We should rather copy the args so
+ that we can compare them later. But we must not use malloc(3). */
+extern int __libc_argc;
+extern char **__libc_argv;
+
+/* Bash 2.0 gives us an environment variable containing flags
+ indicating ARGV elements that should not be considered arguments. */
+
+# ifdef USE_NONOPTION_FLAGS
+/* Defined in getopt_init.c */
+extern char *__getopt_nonoption_flags;
+# endif
+
+# ifdef USE_NONOPTION_FLAGS
+# define SWAP_FLAGS(ch1, ch2) \
+ if (d->__nonoption_flags_len > 0) \
+ { \
+ char __tmp = __getopt_nonoption_flags[ch1]; \
+ __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
+ __getopt_nonoption_flags[ch2] = __tmp; \
+ }
+# else
+# define SWAP_FLAGS(ch1, ch2)
+# endif
+#else /* !_LIBC */
+# define SWAP_FLAGS(ch1, ch2)
+#endif /* _LIBC */
+
+/* Exchange two adjacent subsequences of ARGV.
+ One subsequence is elements [first_nonopt,last_nonopt)
+ which contains all the non-options that have been skipped so far.
+ The other is elements [last_nonopt,optind), which contains all
+ the options processed since those non-options were skipped.
+
+ `first_nonopt' and `last_nonopt' are relocated so that they describe
+ the new indices of the non-options in ARGV after they are moved. */
+
+static void
+exchange (char **argv, struct _getopt_data *d)
+{
+ int bottom = d->__first_nonopt;
+ int middle = d->__last_nonopt;
+ int top = d->optind;
+ char *tem;
+
+ /* Exchange the shorter segment with the far end of the longer segment.
+ That puts the shorter segment into the right place.
+ It leaves the longer segment in the right place overall,
+ but it consists of two parts that need to be swapped next. */
+
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+ /* First make sure the handling of the `__getopt_nonoption_flags'
+ string can work normally. Our top argument must be in the range
+ of the string. */
+ if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
+ {
+ /* We must extend the array. The user plays games with us and
+ presents new arguments. */
+ char *new_str = malloc (top + 1);
+ if (new_str == NULL)
+ d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
+ else
+ {
+ memset (__mempcpy (new_str, __getopt_nonoption_flags,
+ d->__nonoption_flags_max_len),
+ '\0', top + 1 - d->__nonoption_flags_max_len);
+ d->__nonoption_flags_max_len = top + 1;
+ __getopt_nonoption_flags = new_str;
+ }
+ }
+#endif
+
+ while (top > middle && middle > bottom)
+ {
+ if (top - middle > middle - bottom)
+ {
+ /* Bottom segment is the short one. */
+ int len = middle - bottom;
+ register int i;
+
+ /* Swap it with the top part of the top segment. */
+ for (i = 0; i < len; i++)
+ {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[top - (middle - bottom) + i];
+ argv[top - (middle - bottom) + i] = tem;
+ SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
+ }
+ /* Exclude the moved bottom segment from further swapping. */
+ top -= len;
+ }
+ else
+ {
+ /* Top segment is the short one. */
+ int len = top - middle;
+ register int i;
+
+ /* Swap it with the bottom part of the bottom segment. */
+ for (i = 0; i < len; i++)
+ {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[middle + i];
+ argv[middle + i] = tem;
+ SWAP_FLAGS (bottom + i, middle + i);
+ }
+ /* Exclude the moved top segment from further swapping. */
+ bottom += len;
+ }
+ }
+
+ /* Update records for the slots the non-options now occupy. */
+
+ d->__first_nonopt += (d->optind - d->__last_nonopt);
+ d->__last_nonopt = d->optind;
+}
+
+/* Initialize the internal data when the first call is made. */
+
+static const char *
+_getopt_initialize (int argc, char **argv, const char *optstring,
+ int posixly_correct, struct _getopt_data *d)
+{
+ /* Start processing options with ARGV-element 1 (since ARGV-element 0
+ is the program name); the sequence of previously skipped
+ non-option ARGV-elements is empty. */
+
+ d->__first_nonopt = d->__last_nonopt = d->optind;
+
+ d->__nextchar = NULL;
+
+ d->__posixly_correct = posixly_correct || !!getenv ("POSIXLY_CORRECT");
+
+ /* Determine how to handle the ordering of options and nonoptions. */
+
+ if (optstring[0] == '-')
+ {
+ d->__ordering = RETURN_IN_ORDER;
+ ++optstring;
+ }
+ else if (optstring[0] == '+')
+ {
+ d->__ordering = REQUIRE_ORDER;
+ ++optstring;
+ }
+ else if (d->__posixly_correct)
+ d->__ordering = REQUIRE_ORDER;
+ else
+ d->__ordering = PERMUTE;
+
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+ if (!d->__posixly_correct
+ && argc == __libc_argc && argv == __libc_argv)
+ {
+ if (d->__nonoption_flags_max_len == 0)
+ {
+ if (__getopt_nonoption_flags == NULL
+ || __getopt_nonoption_flags[0] == '\0')
+ d->__nonoption_flags_max_len = -1;
+ else
+ {
+ const char *orig_str = __getopt_nonoption_flags;
+ int len = d->__nonoption_flags_max_len = strlen (orig_str);
+ if (d->__nonoption_flags_max_len < argc)
+ d->__nonoption_flags_max_len = argc;
+ __getopt_nonoption_flags =
+ (char *) malloc (d->__nonoption_flags_max_len);
+ if (__getopt_nonoption_flags == NULL)
+ d->__nonoption_flags_max_len = -1;
+ else
+ memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
+ '\0', d->__nonoption_flags_max_len - len);
+ }
+ }
+ d->__nonoption_flags_len = d->__nonoption_flags_max_len;
+ }
+ else
+ d->__nonoption_flags_len = 0;
+#endif
+
+ return optstring;
+}
+
+/* Scan elements of ARGV (whose length is ARGC) for option characters
+ given in OPTSTRING.
+
+ If an element of ARGV starts with '-', and is not exactly "-" or "--",
+ then it is an option element. The characters of this element
+ (aside from the initial '-') are option characters. If `getopt'
+ is called repeatedly, it returns successively each of the option characters
+ from each of the option elements.
+
+ If `getopt' finds another option character, it returns that character,
+ updating `optind' and `nextchar' so that the next call to `getopt' can
+ resume the scan with the following option character or ARGV-element.
+
+ If there are no more option characters, `getopt' returns -1.
+ Then `optind' is the index in ARGV of the first ARGV-element
+ that is not an option. (The ARGV-elements have been permuted
+ so that those that are not options now come last.)
+
+ OPTSTRING is a string containing the legitimate option characters.
+ If an option character is seen that is not listed in OPTSTRING,
+ return '?' after printing an error message. If you set `opterr' to
+ zero, the error message is suppressed but we still return '?'.
+
+ If a char in OPTSTRING is followed by a colon, that means it wants an arg,
+ so the following text in the same ARGV-element, or the text of the following
+ ARGV-element, is returned in `optarg'. Two colons mean an option that
+ wants an optional arg; if there is text in the current ARGV-element,
+ it is returned in `optarg', otherwise `optarg' is set to zero.
+
+ If OPTSTRING starts with `-' or `+', it requests different methods of
+ handling the non-option ARGV-elements.
+ See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
+
+ Long-named options begin with `--' instead of `-'.
+ Their names may be abbreviated as long as the abbreviation is unique
+ or is an exact match for some defined option. If they have an
+ argument, it follows the option name in the same ARGV-element, separated
+ from the option name by a `=', or else the in next ARGV-element.
+ When `getopt' finds a long-named option, it returns 0 if that option's
+ `flag' field is nonzero, the value of the option's `val' field
+ if the `flag' field is zero.
+
+ LONGOPTS is a vector of `struct option' terminated by an
+ element containing a name which is zero.
+
+ LONGIND returns the index in LONGOPT of the long-named option found.
+ It is only valid when a long-named option has been found by the most
+ recent call.
+
+ If LONG_ONLY is nonzero, '-' as well as '--' can introduce
+ long-named options.
+
+ If POSIXLY_CORRECT is nonzero, behave as if the POSIXLY_CORRECT
+ environment variable were set. */
+
+int
+_getopt_internal_r (int argc, char **argv, const char *optstring,
+ const struct option *longopts, int *longind,
+ int long_only, int posixly_correct, struct _getopt_data *d)
+{
+ int print_errors = d->opterr;
+ if (optstring[0] == ':')
+ print_errors = 0;
+
+ if (argc < 1)
+ return -1;
+
+ d->optarg = NULL;
+
+ if (d->optind == 0 || !d->__initialized)
+ {
+ if (d->optind == 0)
+ d->optind = 1; /* Don't scan ARGV[0], the program name. */
+ optstring = _getopt_initialize (argc, argv, optstring,
+ posixly_correct, d);
+ d->__initialized = 1;
+ }
+
+ /* Test whether ARGV[optind] points to a non-option argument.
+ Either it does not have option syntax, or there is an environment flag
+ from the shell indicating it is not an option. The later information
+ is only used when the used in the GNU libc. */
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
+ || (d->optind < d->__nonoption_flags_len \
+ && __getopt_nonoption_flags[d->optind] == '1'))
+#else
+# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
+#endif
+
+ if (d->__nextchar == NULL || *d->__nextchar == '\0')
+ {
+ /* Advance to the next ARGV-element. */
+
+ /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
+ moved back by the user (who may also have changed the arguments). */
+ if (d->__last_nonopt > d->optind)
+ d->__last_nonopt = d->optind;
+ if (d->__first_nonopt > d->optind)
+ d->__first_nonopt = d->optind;
+
+ if (d->__ordering == PERMUTE)
+ {
+ /* If we have just processed some options following some non-options,
+ exchange them so that the options come first. */
+
+ if (d->__first_nonopt != d->__last_nonopt
+ && d->__last_nonopt != d->optind)
+ exchange ((char **) argv, d);
+ else if (d->__last_nonopt != d->optind)
+ d->__first_nonopt = d->optind;
+
+ /* Skip any additional non-options
+ and extend the range of non-options previously skipped. */
+
+ while (d->optind < argc && NONOPTION_P)
+ d->optind++;
+ d->__last_nonopt = d->optind;
+ }
+
+ /* The special ARGV-element `--' means premature end of options.
+ Skip it like a null option,
+ then exchange with previous non-options as if it were an option,
+ then skip everything else like a non-option. */
+
+ if (d->optind != argc && !strcmp (argv[d->optind], "--"))
+ {
+ d->optind++;
+
+ if (d->__first_nonopt != d->__last_nonopt
+ && d->__last_nonopt != d->optind)
+ exchange ((char **) argv, d);
+ else if (d->__first_nonopt == d->__last_nonopt)
+ d->__first_nonopt = d->optind;
+ d->__last_nonopt = argc;
+
+ d->optind = argc;
+ }
+
+ /* If we have done all the ARGV-elements, stop the scan
+ and back over any non-options that we skipped and permuted. */
+
+ if (d->optind == argc)
+ {
+ /* Set the next-arg-index to point at the non-options
+ that we previously skipped, so the caller will digest them. */
+ if (d->__first_nonopt != d->__last_nonopt)
+ d->optind = d->__first_nonopt;
+ return -1;
+ }
+
+ /* If we have come to a non-option and did not permute it,
+ either stop the scan or describe it to the caller and pass it by. */
+
+ if (NONOPTION_P)
+ {
+ if (d->__ordering == REQUIRE_ORDER)
+ return -1;
+ d->optarg = argv[d->optind++];
+ return 1;
+ }
+
+ /* We have found another option-ARGV-element.
+ Skip the initial punctuation. */
+
+ d->__nextchar = (argv[d->optind] + 1
+ + (longopts != NULL && argv[d->optind][1] == '-'));
+ }
+
+ /* Decode the current option-ARGV-element. */
+
+ /* Check whether the ARGV-element is a long option.
+
+ If long_only and the ARGV-element has the form "-f", where f is
+ a valid short option, don't consider it an abbreviated form of
+ a long option that starts with f. Otherwise there would be no
+ way to give the -f short option.
+
+ On the other hand, if there's a long option "fubar" and
+ the ARGV-element is "-fu", do consider that an abbreviation of
+ the long option, just like "--fu", and not "-f" with arg "u".
+
+ This distinction seems to be the most useful approach. */
+
+ if (longopts != NULL
+ && (argv[d->optind][1] == '-'
+ || (long_only && (argv[d->optind][2]
+ || !strchr (optstring, argv[d->optind][1])))))
+ {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = -1;
+ int option_index;
+
+ for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name; p++, option_index++)
+ if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
+ {
+ if ((unsigned int) (nameend - d->__nextchar)
+ == (unsigned int) strlen (p->name))
+ {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ }
+ else if (pfound == NULL)
+ {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ }
+ else if (long_only
+ || pfound->has_arg != p->has_arg
+ || pfound->flag != p->flag
+ || pfound->val != p->val)
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+
+ if (ambig && !exact)
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+
+ if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
+ argv[0], argv[d->optind]) >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#else
+ fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
+ argv[0], argv[d->optind]);
+#endif
+ }
+ d->__nextchar += strlen (d->__nextchar);
+ d->optind++;
+ d->optopt = 0;
+ return '?';
+ }
+
+ if (pfound != NULL)
+ {
+ option_index = indfound;
+ d->optind++;
+ if (*nameend)
+ {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ d->optarg = nameend + 1;
+ else
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+ int n;
+#endif
+
+ if (argv[d->optind - 1][1] == '-')
+ {
+ /* --option */
+#if defined _LIBC && defined USE_IN_LIBIO
+ n = __asprintf (&buf, _("\
+%s: option `--%s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+#else
+ fprintf (stderr, _("\
+%s: option `--%s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+#endif
+ }
+ else
+ {
+ /* +option or -option */
+#if defined _LIBC && defined USE_IN_LIBIO
+ n = __asprintf (&buf, _("\
+%s: option `%c%s' doesn't allow an argument\n"),
+ argv[0], argv[d->optind - 1][0],
+ pfound->name);
+#else
+ fprintf (stderr, _("\
+%s: option `%c%s' doesn't allow an argument\n"),
+ argv[0], argv[d->optind - 1][0],
+ pfound->name);
+#endif
+ }
+
+#if defined _LIBC && defined USE_IN_LIBIO
+ if (n >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2
+ |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#endif
+ }
+
+ d->__nextchar += strlen (d->__nextchar);
+
+ d->optopt = pfound->val;
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (d->optind < argc)
+ d->optarg = argv[d->optind++];
+ else
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+
+ if (__asprintf (&buf, _("\
+%s: option `%s' requires an argument\n"),
+ argv[0], argv[d->optind - 1]) >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2
+ |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#else
+ fprintf (stderr,
+ _("%s: option `%s' requires an argument\n"),
+ argv[0], argv[d->optind - 1]);
+#endif
+ }
+ d->__nextchar += strlen (d->__nextchar);
+ d->optopt = pfound->val;
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ d->__nextchar += strlen (d->__nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
+ {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
+
+ /* Can't find it as a long option. If this is not getopt_long_only,
+ or the option starts with '--' or is not a valid short
+ option, then it's an error.
+ Otherwise interpret it as a short option. */
+ if (!long_only || argv[d->optind][1] == '-'
+ || strchr (optstring, *d->__nextchar) == NULL)
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+ int n;
+#endif
+
+ if (argv[d->optind][1] == '-')
+ {
+ /* --option */
+#if defined _LIBC && defined USE_IN_LIBIO
+ n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
+ argv[0], d->__nextchar);
+#else
+ fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
+ argv[0], d->__nextchar);
+#endif
+ }
+ else
+ {
+ /* +option or -option */
+#if defined _LIBC && defined USE_IN_LIBIO
+ n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
+ argv[0], argv[d->optind][0], d->__nextchar);
+#else
+ fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
+ argv[0], argv[d->optind][0], d->__nextchar);
+#endif
+ }
+
+#if defined _LIBC && defined USE_IN_LIBIO
+ if (n >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#endif
+ }
+ d->__nextchar = (char *) "";
+ d->optind++;
+ d->optopt = 0;
+ return '?';
+ }
+ }
+
+ /* Look at and handle the next short option-character. */
+
+ {
+ char c = *d->__nextchar++;
+ char *temp = strchr (optstring, c);
+
+ /* Increment `optind' when we start to process its last character. */
+ if (*d->__nextchar == '\0')
+ ++d->optind;
+
+ if (temp == NULL || c == ':')
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+ int n;
+#endif
+
+ if (d->__posixly_correct)
+ {
+ /* 1003.2 specifies the format of this message. */
+#if defined _LIBC && defined USE_IN_LIBIO
+ n = __asprintf (&buf, _("%s: illegal option -- %c\n"),
+ argv[0], c);
+#else
+ fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c);
+#endif
+ }
+ else
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ n = __asprintf (&buf, _("%s: invalid option -- %c\n"),
+ argv[0], c);
+#else
+ fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c);
+#endif
+ }
+
+#if defined _LIBC && defined USE_IN_LIBIO
+ if (n >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#endif
+ }
+ d->optopt = c;
+ return '?';
+ }
+ /* Convenience. Treat POSIX -W foo same as long option --foo */
+ if (temp[0] == 'W' && temp[1] == ';')
+ {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = 0;
+ int option_index;
+
+ /* This is an option that requires an argument. */
+ if (*d->__nextchar != '\0')
+ {
+ d->optarg = d->__nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ d->optind++;
+ }
+ else if (d->optind == argc)
+ {
+ if (print_errors)
+ {
+ /* 1003.2 specifies the format of this message. */
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+
+ if (__asprintf (&buf,
+ _("%s: option requires an argument -- %c\n"),
+ argv[0], c) >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#else
+ fprintf (stderr, _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+#endif
+ }
+ d->optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ return c;
+ }
+ else
+ /* We already incremented `d->optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ d->optarg = argv[d->optind++];
+
+ /* optarg is now the argument, see if it's in the
+ table of longopts. */
+
+ for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
+ nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name; p++, option_index++)
+ if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
+ {
+ if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
+ {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ }
+ else if (pfound == NULL)
+ {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ }
+ else
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+ if (ambig && !exact)
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+
+ if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
+ argv[0], argv[d->optind]) >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#else
+ fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
+ argv[0], argv[d->optind]);
+#endif
+ }
+ d->__nextchar += strlen (d->__nextchar);
+ d->optind++;
+ return '?';
+ }
+ if (pfound != NULL)
+ {
+ option_index = indfound;
+ if (*nameend)
+ {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ d->optarg = nameend + 1;
+ else
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+
+ if (__asprintf (&buf, _("\
+%s: option `-W %s' doesn't allow an argument\n"),
+ argv[0], pfound->name) >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2
+ |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#else
+ fprintf (stderr, _("\
+%s: option `-W %s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+#endif
+ }
+
+ d->__nextchar += strlen (d->__nextchar);
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (d->optind < argc)
+ d->optarg = argv[d->optind++];
+ else
+ {
+ if (print_errors)
+ {
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+
+ if (__asprintf (&buf, _("\
+%s: option `%s' requires an argument\n"),
+ argv[0], argv[d->optind - 1]) >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2
+ |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#else
+ fprintf (stderr,
+ _("%s: option `%s' requires an argument\n"),
+ argv[0], argv[d->optind - 1]);
+#endif
+ }
+ d->__nextchar += strlen (d->__nextchar);
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ d->__nextchar += strlen (d->__nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
+ {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
+ d->__nextchar = NULL;
+ return 'W'; /* Let the application handle it. */
+ }
+ if (temp[1] == ':')
+ {
+ if (temp[2] == ':')
+ {
+ /* This is an option that accepts an argument optionally. */
+ if (*d->__nextchar != '\0')
+ {
+ d->optarg = d->__nextchar;
+ d->optind++;
+ }
+ else
+ d->optarg = NULL;
+ d->__nextchar = NULL;
+ }
+ else
+ {
+ /* This is an option that requires an argument. */
+ if (*d->__nextchar != '\0')
+ {
+ d->optarg = d->__nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ d->optind++;
+ }
+ else if (d->optind == argc)
+ {
+ if (print_errors)
+ {
+ /* 1003.2 specifies the format of this message. */
+#if defined _LIBC && defined USE_IN_LIBIO
+ char *buf;
+
+ if (__asprintf (&buf, _("\
+%s: option requires an argument -- %c\n"),
+ argv[0], c) >= 0)
+ {
+ _IO_flockfile (stderr);
+
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+
+ __fxprintf (NULL, "%s", buf);
+
+ ((_IO_FILE *) stderr)->_flags2 = old_flags2;
+ _IO_funlockfile (stderr);
+
+ free (buf);
+ }
+#else
+ fprintf (stderr,
+ _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+#endif
+ }
+ d->optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ }
+ else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ d->optarg = argv[d->optind++];
+ d->__nextchar = NULL;
+ }
+ }
+ return c;
+ }
+}
+
+int
+_getopt_internal (int argc, char **argv, const char *optstring,
+ const struct option *longopts, int *longind,
+ int long_only, int posixly_correct)
+{
+ int result;
+
+ getopt_data.optind = optind;
+ getopt_data.opterr = opterr;
+
+ result = _getopt_internal_r (argc, argv, optstring, longopts, longind,
+ long_only, posixly_correct, &getopt_data);
+
+ optind = getopt_data.optind;
+ optarg = getopt_data.optarg;
+ optopt = getopt_data.optopt;
+
+ return result;
+}
+
+/* glibc gets a LSB-compliant getopt.
+ Standalone applications get a POSIX-compliant getopt. */
+#if _LIBC
+enum { POSIXLY_CORRECT = 0 };
+#else
+enum { POSIXLY_CORRECT = 1 };
+#endif
+
+int
+getopt (int argc, char *const *argv, const char *optstring)
+{
+ return _getopt_internal (argc, (char **) argv, optstring, NULL, NULL, 0,
+ POSIXLY_CORRECT);
+}
+
+
+#ifdef TEST
+
+/* Compile with -DTEST to make an executable for use in testing
+ the above definition of `getopt'. */
+
+int
+main (int argc, char **argv)
+{
+ int c;
+ int digit_optind = 0;
+
+ while (1)
+ {
+ int this_option_optind = optind ? optind : 1;
+
+ c = getopt (argc, argv, "abc:d:0123456789");
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if (digit_optind != 0 && digit_optind != this_option_optind)
+ printf ("digits occur in two different argv-elements.\n");
+ digit_optind = this_option_optind;
+ printf ("option %c\n", c);
+ break;
+
+ case 'a':
+ printf ("option a\n");
+ break;
+
+ case 'b':
+ printf ("option b\n");
+ break;
+
+ case 'c':
+ printf ("option c with value `%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf ("?? getopt returned character code 0%o ??\n", c);
+ }
+ }
+
+ if (optind < argc)
+ {
+ printf ("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf ("%s ", argv[optind++]);
+ printf ("\n");
+ }
+
+ exit (0);
+}
+
+#endif /* TEST */
diff --git a/lib/getopt1.c b/lib/getopt1.c
new file mode 100644
index 0000000..25d7926
--- /dev/null
+++ b/lib/getopt1.c
@@ -0,0 +1,174 @@
+/* getopt_long and getopt_long_only entry points for GNU getopt.
+ Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef _LIBC
+# include <getopt.h>
+#else
+# include "getopt.h"
+#endif
+#include "getopt_int.h"
+
+#include <stdio.h>
+
+/* This needs to come after some library #include
+ to get __GNU_LIBRARY__ defined. */
+#ifdef __GNU_LIBRARY__
+#include <stdlib.h>
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+int
+getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
+ const struct option *long_options, int *opt_index)
+{
+ return _getopt_internal (argc, (char **) argv, options, long_options,
+ opt_index, 0, 0);
+}
+
+int
+_getopt_long_r (int argc, char **argv, const char *options,
+ const struct option *long_options, int *opt_index,
+ struct _getopt_data *d)
+{
+ return _getopt_internal_r (argc, argv, options, long_options, opt_index,
+ 0, 0, d);
+}
+
+/* Like getopt_long, but '-' as well as '--' can indicate a long option.
+ If an option that starts with '-' (not '--') doesn't match a long option,
+ but does match a short option, it is parsed as a short option
+ instead. */
+
+int
+getopt_long_only (int argc, char *__getopt_argv_const *argv,
+ const char *options,
+ const struct option *long_options, int *opt_index)
+{
+ return _getopt_internal (argc, (char **) argv, options, long_options,
+ opt_index, 1, 0);
+}
+
+int
+_getopt_long_only_r (int argc, char **argv, const char *options,
+ const struct option *long_options, int *opt_index,
+ struct _getopt_data *d)
+{
+ return _getopt_internal_r (argc, argv, options, long_options, opt_index,
+ 1, 0, d);
+}
+
+
+#ifdef TEST
+
+#include <stdio.h>
+
+int
+main (int argc, char **argv)
+{
+ int c;
+ int digit_optind = 0;
+
+ while (1)
+ {
+ int this_option_optind = optind ? optind : 1;
+ int option_index = 0;
+ static struct option long_options[] =
+ {
+ {"add", 1, 0, 0},
+ {"append", 0, 0, 0},
+ {"delete", 1, 0, 0},
+ {"verbose", 0, 0, 0},
+ {"create", 0, 0, 0},
+ {"file", 1, 0, 0},
+ {0, 0, 0, 0}
+ };
+
+ c = getopt_long (argc, argv, "abc:d:0123456789",
+ long_options, &option_index);
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case 0:
+ printf ("option %s", long_options[option_index].name);
+ if (optarg)
+ printf (" with arg %s", optarg);
+ printf ("\n");
+ break;
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if (digit_optind != 0 && digit_optind != this_option_optind)
+ printf ("digits occur in two different argv-elements.\n");
+ digit_optind = this_option_optind;
+ printf ("option %c\n", c);
+ break;
+
+ case 'a':
+ printf ("option a\n");
+ break;
+
+ case 'b':
+ printf ("option b\n");
+ break;
+
+ case 'c':
+ printf ("option c with value `%s'\n", optarg);
+ break;
+
+ case 'd':
+ printf ("option d with value `%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf ("?? getopt returned character code 0%o ??\n", c);
+ }
+ }
+
+ if (optind < argc)
+ {
+ printf ("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf ("%s ", argv[optind++]);
+ printf ("\n");
+ }
+
+ exit (0);
+}
+
+#endif /* TEST */
diff --git a/lib/getopt_.h b/lib/getopt_.h
new file mode 100644
index 0000000..3c406e5
--- /dev/null
+++ b/lib/getopt_.h
@@ -0,0 +1,225 @@
+/* Declarations for getopt.
+ Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2005
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _GETOPT_H
+
+#ifndef __need_getopt
+# define _GETOPT_H 1
+#endif
+
+/* Standalone applications should #define __GETOPT_PREFIX to an
+ identifier that prefixes the external functions and variables
+ defined in this header. When this happens, include the
+ headers that might declare getopt so that they will not cause
+ confusion if included after this file. Then systematically rename
+ identifiers so that they do not collide with the system functions
+ and variables. Renaming avoids problems with some compilers and
+ linkers. */
+#if defined __GETOPT_PREFIX && !defined __need_getopt
+# include <stdlib.h>
+# include <stdio.h>
+# include <unistd.h>
+# undef __need_getopt
+# undef getopt
+# undef getopt_long
+# undef getopt_long_only
+# undef optarg
+# undef opterr
+# undef optind
+# undef optopt
+# define __GETOPT_CONCAT(x, y) x ## y
+# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
+# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
+# define getopt __GETOPT_ID (getopt)
+# define getopt_long __GETOPT_ID (getopt_long)
+# define getopt_long_only __GETOPT_ID (getopt_long_only)
+# define optarg __GETOPT_ID (optarg)
+# define opterr __GETOPT_ID (opterr)
+# define optind __GETOPT_ID (optind)
+# define optopt __GETOPT_ID (optopt)
+#endif
+
+/* Standalone applications get correct prototypes for getopt_long and
+ getopt_long_only; they declare "char **argv". libc uses prototypes
+ with "char *const *argv" that are incorrect because getopt_long and
+ getopt_long_only can permute argv; this is required for backward
+ compatibility (e.g., for LSB 2.0.1).
+
+ This used to be `#if defined __GETOPT_PREFIX && !defined __need_getopt',
+ but it caused redefinition warnings if both unistd.h and getopt.h were
+ included, since unistd.h includes getopt.h having previously defined
+ __need_getopt.
+
+ The only place where __getopt_argv_const is used is in definitions
+ of getopt_long and getopt_long_only below, but these are visible
+ only if __need_getopt is not defined, so it is quite safe to rewrite
+ the conditional as follows:
+*/
+#if !defined __need_getopt
+# if defined __GETOPT_PREFIX
+# define __getopt_argv_const /* empty */
+# else
+# define __getopt_argv_const const
+# endif
+#endif
+
+/* If __GNU_LIBRARY__ is not already defined, either we are being used
+ standalone, or this is the first header included in the source file.
+ If we are being used with glibc, we need to include <features.h>, but
+ that does not exist if we are standalone. So: if __GNU_LIBRARY__ is
+ not defined, include <ctype.h>, which will pull in <features.h> for us
+ if it's from glibc. (Why ctype.h? It's guaranteed to exist and it
+ doesn't flood the namespace with stuff the way some other headers do.) */
+#if !defined __GNU_LIBRARY__
+# include <ctype.h>
+#endif
+
+#ifndef __THROW
+# ifndef __GNUC_PREREQ
+# define __GNUC_PREREQ(maj, min) (0)
+# endif
+# if defined __cplusplus && __GNUC_PREREQ (2,8)
+# define __THROW throw ()
+# else
+# define __THROW
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* For communication from `getopt' to the caller.
+ When `getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `getopt'.
+
+ On entry to `getopt', zero means this is the first call; initialize.
+
+ When `getopt' returns -1, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+ for unrecognized options. */
+
+extern int opterr;
+
+/* Set to an option character which was unrecognized. */
+
+extern int optopt;
+
+#ifndef __need_getopt
+/* Describe the long-named options requested by the application.
+ The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+ of `struct option' terminated by an element containing a name which is
+ zero.
+
+ The field `has_arg' is:
+ no_argument (or 0) if the option does not take an argument,
+ required_argument (or 1) if the option requires an argument,
+ optional_argument (or 2) if the option takes an optional argument.
+
+ If the field `flag' is not NULL, it points to a variable that is set
+ to the value given in the field `val' when the option is found, but
+ left unchanged if the option is not found.
+
+ To have a long-named option do something other than set an `int' to
+ a compiled-in constant, such as set a value from `optarg', set the
+ option's `flag' field to zero and its `val' field to a nonzero
+ value (the equivalent single-letter option character, if there is
+ one). For long options that have a zero `flag' field, `getopt'
+ returns the contents of the `val' field. */
+
+struct option
+{
+ const char *name;
+ /* has_arg can't be an enum because some compilers complain about
+ type mismatches in all the code that assumes it is an int. */
+ int has_arg;
+ int *flag;
+ int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct option'. */
+
+# define no_argument 0
+# define required_argument 1
+# define optional_argument 2
+#endif /* need getopt */
+
+
+/* Get definitions and prototypes for functions to process the
+ arguments in ARGV (ARGC of them, minus the program name) for
+ options given in OPTS.
+
+ Return the option character from OPTS just read. Return -1 when
+ there are no more options. For unrecognized options, or options
+ missing arguments, `optopt' is set to the option letter, and '?' is
+ returned.
+
+ The OPTS string is a list of characters which are recognized option
+ letters, optionally followed by colons, specifying that that letter
+ takes an argument, to be placed in `optarg'.
+
+ If a letter in OPTS is followed by two colons, its argument is
+ optional. This behavior is specific to the GNU `getopt'.
+
+ The argument `--' causes premature termination of argument
+ scanning, explicitly telling `getopt' that there are no more
+ options.
+
+ If OPTS begins with `--', then non-option arguments are treated as
+ arguments to the option '\0'. This behavior is specific to the GNU
+ `getopt'. */
+
+extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
+ __THROW;
+
+#ifndef __need_getopt
+extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv,
+ const char *__shortopts,
+ const struct option *__longopts, int *__longind)
+ __THROW;
+extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
+ const char *__shortopts,
+ const struct option *__longopts, int *__longind)
+ __THROW;
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/* Make sure we later can get all the definitions and declarations. */
+#undef __need_getopt
+
+#endif /* getopt.h */
diff --git a/lib/getopt_int.h b/lib/getopt_int.h
new file mode 100644
index 0000000..401579f
--- /dev/null
+++ b/lib/getopt_int.h
@@ -0,0 +1,131 @@
+/* Internal declarations for getopt.
+ Copyright (C) 1989-1994,1996-1999,2001,2003,2004
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _GETOPT_INT_H
+#define _GETOPT_INT_H 1
+
+extern int _getopt_internal (int ___argc, char **___argv,
+ const char *__shortopts,
+ const struct option *__longopts, int *__longind,
+ int __long_only, int __posixly_correct);
+
+
+/* Reentrant versions which can handle parsing multiple argument
+ vectors at the same time. */
+
+/* Data type for reentrant functions. */
+struct _getopt_data
+{
+ /* These have exactly the same meaning as the corresponding global
+ variables, except that they are used for the reentrant
+ versions of getopt. */
+ int optind;
+ int opterr;
+ int optopt;
+ char *optarg;
+
+ /* Internal members. */
+
+ /* True if the internal members have been initialized. */
+ int __initialized;
+
+ /* The next char to be scanned in the option-element
+ in which the last option character we returned was found.
+ This allows us to pick up the scan where we left off.
+
+ If this is zero, or a null string, it means resume the scan
+ by advancing to the next ARGV-element. */
+ char *__nextchar;
+
+ /* Describe how to deal with options that follow non-option ARGV-elements.
+
+ If the caller did not specify anything,
+ the default is REQUIRE_ORDER if the environment variable
+ POSIXLY_CORRECT is defined, PERMUTE otherwise.
+
+ REQUIRE_ORDER means don't recognize them as options;
+ stop option processing when the first non-option is seen.
+ This is what Unix does.
+ This mode of operation is selected by either setting the environment
+ variable POSIXLY_CORRECT, or using `+' as the first character
+ of the list of option characters, or by calling getopt.
+
+ PERMUTE is the default. We permute the contents of ARGV as we
+ scan, so that eventually all the non-options are at the end.
+ This allows options to be given in any order, even with programs
+ that were not written to expect this.
+
+ RETURN_IN_ORDER is an option available to programs that were
+ written to expect options and other ARGV-elements in any order
+ and that care about the ordering of the two. We describe each
+ non-option ARGV-element as if it were the argument of an option
+ with character code 1. Using `-' as the first character of the
+ list of option characters selects this mode of operation.
+
+ The special argument `--' forces an end of option-scanning regardless
+ of the value of `ordering'. In the case of RETURN_IN_ORDER, only
+ `--' can cause `getopt' to return -1 with `optind' != ARGC. */
+
+ enum
+ {
+ REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
+ } __ordering;
+
+ /* If the POSIXLY_CORRECT environment variable is set
+ or getopt was called. */
+ int __posixly_correct;
+
+
+ /* Handle permutation of arguments. */
+
+ /* Describe the part of ARGV that contains non-options that have
+ been skipped. `first_nonopt' is the index in ARGV of the first
+ of them; `last_nonopt' is the index after the last of them. */
+
+ int __first_nonopt;
+ int __last_nonopt;
+
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+ int __nonoption_flags_max_len;
+ int __nonoption_flags_len;
+# endif
+};
+
+/* The initializer is necessary to set OPTIND and OPTERR to their
+ default values and to clear the initialization flag. */
+#define _GETOPT_DATA_INITIALIZER { 1, 1 }
+
+extern int _getopt_internal_r (int ___argc, char **___argv,
+ const char *__shortopts,
+ const struct option *__longopts, int *__longind,
+ int __long_only, int __posixly_correct,
+ struct _getopt_data *__data);
+
+extern int _getopt_long_r (int ___argc, char **___argv,
+ const char *__shortopts,
+ const struct option *__longopts, int *__longind,
+ struct _getopt_data *__data);
+
+extern int _getopt_long_only_r (int ___argc, char **___argv,
+ const char *__shortopts,
+ const struct option *__longopts,
+ int *__longind,
+ struct _getopt_data *__data);
+
+#endif /* getopt_int.h */
diff --git a/lib/gettext.h b/lib/gettext.h
new file mode 100644
index 0000000..285cb31
--- /dev/null
+++ b/lib/gettext.h
@@ -0,0 +1,78 @@
+/* Convenience header for conditional use of GNU <libintl.h>.
+ Copyright (C) 1995-1998, 2000-2002, 2004 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _LIBGETTEXT_H
+#define _LIBGETTEXT_H 1
+
+/* NLS can be disabled through the configure --disable-nls option. */
+#if ENABLE_NLS
+
+/* Get declarations of GNU message catalog functions. */
+# include <libintl.h>
+
+#else
+
+/* Solaris /usr/include/locale.h includes /usr/include/libintl.h, which
+ chokes if dcgettext is defined as a macro. So include it now, to make
+ later inclusions of <locale.h> a NOP. We don't include <libintl.h>
+ as well because people using "gettext.h" will not include <libintl.h>,
+ and also including <libintl.h> would fail on SunOS 4, whereas <locale.h>
+ is OK. */
+#if defined(__sun)
+# include <locale.h>
+#endif
+
+/* Many header files from the libstdc++ coming with g++ 3.3 or newer include
+ <libintl.h>, which chokes if dcgettext is defined as a macro. So include
+ it now, to make later inclusions of <libintl.h> a NOP. */
+#if defined(__cplusplus) && defined(__GNUG__) && (__GNUC__ >= 3)
+# include <cstdlib>
+# if (__GLIBC__ >= 2) || _GLIBCXX_HAVE_LIBINTL_H
+# include <libintl.h>
+# endif
+#endif
+
+/* Disabled NLS.
+ The casts to 'const char *' serve the purpose of producing warnings
+ for invalid uses of the value returned from these functions.
+ On pre-ANSI systems without 'const', the config.h file is supposed to
+ contain "#define const". */
+# define gettext(Msgid) ((const char *) (Msgid))
+# define dgettext(Domainname, Msgid) ((const char *) (Msgid))
+# define dcgettext(Domainname, Msgid, Category) ((const char *) (Msgid))
+# define ngettext(Msgid1, Msgid2, N) \
+ ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define dngettext(Domainname, Msgid1, Msgid2, N) \
+ ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
+ ((N) == 1 ? (const char *) (Msgid1) : (const char *) (Msgid2))
+# define textdomain(Domainname) ((const char *) (Domainname))
+# define bindtextdomain(Domainname, Dirname) ((const char *) (Dirname))
+# define bind_textdomain_codeset(Domainname, Codeset) ((const char *) (Codeset))
+
+#endif
+
+/* A pseudo function call that serves as a marker for the automated
+ extraction of messages, but does not call gettext(). The run-time
+ translation is done at a different place in the code.
+ The argument, String, should be a literal string. Concatenated strings
+ and other string expressions won't work.
+ The macro's expansion is not parenthesized, so that it is suitable as
+ initializer for static 'char[]' or 'const char[]' variables. */
+#define gettext_noop(String) String
+
+#endif /* _LIBGETTEXT_H */
diff --git a/lib/gnulib.mk b/lib/gnulib.mk
new file mode 100644
index 0000000..3e7b28d
--- /dev/null
+++ b/lib/gnulib.mk
@@ -0,0 +1,78 @@
+# This file is generated automatically by "bootstrap".
+lib_SOURCES += argmatch.h argmatch.c
+
+lib_SOURCES += basename.c stripslash.c
+
+
+lib_SOURCES += exit.h
+
+
+
+BUILT_SOURCES += $(GETOPT_H)
+EXTRA_DIST += getopt_.h getopt_int.h
+
+# We need the following in order to create <getopt.h> when the system
+# doesn't have one that works with the given compiler.
+getopt.h: getopt_.h
+ cp $(srcdir)/getopt_.h $@-t
+ mv $@-t $@
+MOSTLYCLEANFILES += getopt.h getopt.h-t
+
+# This is for those projects which use "gettextize --intl" to put a source-code
+# copy of libintl into their package. In such projects, every Makefile.am needs
+# -I$(top_builddir)/intl, so that <libintl.h> can be found in this directory.
+# For the Makefile.ams in other directories it is the maintainer's
+# responsibility; for the one from gnulib we do it here.
+# This option has no effect when the user disables NLS (because then the intl
+# directory contains no libintl.h file) or when the project does not use
+# "gettextize --intl".
+# (commented out by bootstrap) AM_CPPFLAGS += -I$(top_builddir)/intl
+
+lib_SOURCES += gettext.h
+
+
+
+
+
+lib_SOURCES += mbswidth.h mbswidth.c
+
+
+
+
+BUILT_SOURCES += $(STDBOOL_H)
+EXTRA_DIST += stdbool_.h
+
+# We need the following in order to create <stdbool.h> when the system
+# doesn't have one that works.
+stdbool.h: stdbool_.h
+ sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool_.h > $@-t
+ mv $@-t $@
+MOSTLYCLEANFILES += stdbool.h stdbool.h-t
+
+
+lib_SOURCES += stpcpy.h
+
+
+
+
+
+
+
+
+BUILT_SOURCES += $(UNISTD_H)
+
+# We need the following in order to create an empty placeholder for
+# <unistd.h> when the system doesn't have one.
+unistd.h:
+ echo '/* Empty placeholder for $@. */' >$@
+MOSTLYCLEANFILES += unistd.h
+
+
+
+lib_SOURCES += verify.h
+
+
+lib_SOURCES += xalloc-die.c
+
+lib_SOURCES += xstrndup.h xstrndup.c
+
diff --git a/lib/hard-locale.c b/lib/hard-locale.c
new file mode 100644
index 0000000..98530fc
--- /dev/null
+++ b/lib/hard-locale.c
@@ -0,0 +1,75 @@
+/* hard-locale.c -- Determine whether a locale is hard.
+
+ Copyright (C) 1997, 1998, 1999, 2002, 2003, 2004 Free Software
+ Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "hard-locale.h"
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "strdup.h"
+
+#ifdef __GLIBC__
+# define GLIBC_VERSION __GLIBC__
+#else
+# define GLIBC_VERSION 0
+#endif
+
+/* Return true if the current CATEGORY locale is hard, i.e. if you
+ can't get away with assuming traditional C or POSIX behavior. */
+bool
+hard_locale (int category)
+{
+ bool hard = true;
+ char const *p = setlocale (category, NULL);
+
+ if (p)
+ {
+ if (2 <= GLIBC_VERSION)
+ {
+ if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0)
+ hard = false;
+ }
+ else
+ {
+ char *locale = strdup (p);
+ if (locale)
+ {
+ /* Temporarily set the locale to the "C" and "POSIX" locales
+ to find their names, so that we can determine whether one
+ or the other is the caller's locale. */
+ if (((p = setlocale (category, "C"))
+ && strcmp (p, locale) == 0)
+ || ((p = setlocale (category, "POSIX"))
+ && strcmp (p, locale) == 0))
+ hard = false;
+
+ /* Restore the caller's locale. */
+ setlocale (category, locale);
+ free (locale);
+ }
+ }
+ }
+
+ return hard;
+}
diff --git a/lib/hard-locale.h b/lib/hard-locale.h
new file mode 100644
index 0000000..c5cedc0
--- /dev/null
+++ b/lib/hard-locale.h
@@ -0,0 +1,26 @@
+/* Determine whether a locale is hard.
+
+ Copyright (C) 1999, 2003, 2004 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef HARD_LOCALE_H_
+# define HARD_LOCALE_H_ 1
+
+# include <stdbool.h>
+
+bool hard_locale (int);
+
+#endif /* HARD_LOCALE_H_ */
diff --git a/lib/hash.c b/lib/hash.c
new file mode 100644
index 0000000..f85bd51
--- /dev/null
+++ b/lib/hash.c
@@ -0,0 +1,1050 @@
+/* hash - hashing table processing.
+
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
+ Software Foundation, Inc.
+
+ Written by Jim Meyering, 1992.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* A generic hash table package. */
+
+/* Define USE_OBSTACK to 1 if you want the allocator to use obstacks instead
+ of malloc. If you change USE_OBSTACK, you have to recompile! */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "hash.h"
+#include "xalloc.h"
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#if USE_OBSTACK
+# include "obstack.h"
+# ifndef obstack_chunk_alloc
+# define obstack_chunk_alloc malloc
+# endif
+# ifndef obstack_chunk_free
+# define obstack_chunk_free free
+# endif
+#endif
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t) -1)
+#endif
+
+struct hash_table
+ {
+ /* The array of buckets starts at BUCKET and extends to BUCKET_LIMIT-1,
+ for a possibility of N_BUCKETS. Among those, N_BUCKETS_USED buckets
+ are not empty, there are N_ENTRIES active entries in the table. */
+ struct hash_entry *bucket;
+ struct hash_entry const *bucket_limit;
+ size_t n_buckets;
+ size_t n_buckets_used;
+ size_t n_entries;
+
+ /* Tuning arguments, kept in a physicaly separate structure. */
+ const Hash_tuning *tuning;
+
+ /* Three functions are given to `hash_initialize', see the documentation
+ block for this function. In a word, HASHER randomizes a user entry
+ into a number up from 0 up to some maximum minus 1; COMPARATOR returns
+ true if two user entries compare equally; and DATA_FREER is the cleanup
+ function for a user entry. */
+ Hash_hasher hasher;
+ Hash_comparator comparator;
+ Hash_data_freer data_freer;
+
+ /* A linked list of freed struct hash_entry structs. */
+ struct hash_entry *free_entry_list;
+
+#if USE_OBSTACK
+ /* Whenever obstacks are used, it is possible to allocate all overflowed
+ entries into a single stack, so they all can be freed in a single
+ operation. It is not clear if the speedup is worth the trouble. */
+ struct obstack entry_stack;
+#endif
+ };
+
+/* A hash table contains many internal entries, each holding a pointer to
+ some user provided data (also called a user entry). An entry indistinctly
+ refers to both the internal entry and its associated user entry. A user
+ entry contents may be hashed by a randomization function (the hashing
+ function, or just `hasher' for short) into a number (or `slot') between 0
+ and the current table size. At each slot position in the hash table,
+ starts a linked chain of entries for which the user data all hash to this
+ slot. A bucket is the collection of all entries hashing to the same slot.
+
+ A good `hasher' function will distribute entries rather evenly in buckets.
+ In the ideal case, the length of each bucket is roughly the number of
+ entries divided by the table size. Finding the slot for a data is usually
+ done in constant time by the `hasher', and the later finding of a precise
+ entry is linear in time with the size of the bucket. Consequently, a
+ larger hash table size (that is, a larger number of buckets) is prone to
+ yielding shorter chains, *given* the `hasher' function behaves properly.
+
+ Long buckets slow down the lookup algorithm. One might use big hash table
+ sizes in hope to reduce the average length of buckets, but this might
+ become inordinate, as unused slots in the hash table take some space. The
+ best bet is to make sure you are using a good `hasher' function (beware
+ that those are not that easy to write! :-), and to use a table size
+ larger than the actual number of entries. */
+
+/* If an insertion makes the ratio of nonempty buckets to table size larger
+ than the growth threshold (a number between 0.0 and 1.0), then increase
+ the table size by multiplying by the growth factor (a number greater than
+ 1.0). The growth threshold defaults to 0.8, and the growth factor
+ defaults to 1.414, meaning that the table will have doubled its size
+ every second time 80% of the buckets get used. */
+#define DEFAULT_GROWTH_THRESHOLD 0.8
+#define DEFAULT_GROWTH_FACTOR 1.414
+
+/* If a deletion empties a bucket and causes the ratio of used buckets to
+ table size to become smaller than the shrink threshold (a number between
+ 0.0 and 1.0), then shrink the table by multiplying by the shrink factor (a
+ number greater than the shrink threshold but smaller than 1.0). The shrink
+ threshold and factor default to 0.0 and 1.0, meaning that the table never
+ shrinks. */
+#define DEFAULT_SHRINK_THRESHOLD 0.0
+#define DEFAULT_SHRINK_FACTOR 1.0
+
+/* Use this to initialize or reset a TUNING structure to
+ some sensible values. */
+static const Hash_tuning default_tuning =
+ {
+ DEFAULT_SHRINK_THRESHOLD,
+ DEFAULT_SHRINK_FACTOR,
+ DEFAULT_GROWTH_THRESHOLD,
+ DEFAULT_GROWTH_FACTOR,
+ false
+ };
+
+/* Information and lookup. */
+
+/* The following few functions provide information about the overall hash
+ table organization: the number of entries, number of buckets and maximum
+ length of buckets. */
+
+/* Return the number of buckets in the hash table. The table size, the total
+ number of buckets (used plus unused), or the maximum number of slots, are
+ the same quantity. */
+
+size_t
+hash_get_n_buckets (const Hash_table *table)
+{
+ return table->n_buckets;
+}
+
+/* Return the number of slots in use (non-empty buckets). */
+
+size_t
+hash_get_n_buckets_used (const Hash_table *table)
+{
+ return table->n_buckets_used;
+}
+
+/* Return the number of active entries. */
+
+size_t
+hash_get_n_entries (const Hash_table *table)
+{
+ return table->n_entries;
+}
+
+/* Return the length of the longest chain (bucket). */
+
+size_t
+hash_get_max_bucket_length (const Hash_table *table)
+{
+ struct hash_entry const *bucket;
+ size_t max_bucket_length = 0;
+
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ if (bucket->data)
+ {
+ struct hash_entry const *cursor = bucket;
+ size_t bucket_length = 1;
+
+ while (cursor = cursor->next, cursor)
+ bucket_length++;
+
+ if (bucket_length > max_bucket_length)
+ max_bucket_length = bucket_length;
+ }
+ }
+
+ return max_bucket_length;
+}
+
+/* Do a mild validation of a hash table, by traversing it and checking two
+ statistics. */
+
+bool
+hash_table_ok (const Hash_table *table)
+{
+ struct hash_entry const *bucket;
+ size_t n_buckets_used = 0;
+ size_t n_entries = 0;
+
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ if (bucket->data)
+ {
+ struct hash_entry const *cursor = bucket;
+
+ /* Count bucket head. */
+ n_buckets_used++;
+ n_entries++;
+
+ /* Count bucket overflow. */
+ while (cursor = cursor->next, cursor)
+ n_entries++;
+ }
+ }
+
+ if (n_buckets_used == table->n_buckets_used && n_entries == table->n_entries)
+ return true;
+
+ return false;
+}
+
+void
+hash_print_statistics (const Hash_table *table, FILE *stream)
+{
+ size_t n_entries = hash_get_n_entries (table);
+ size_t n_buckets = hash_get_n_buckets (table);
+ size_t n_buckets_used = hash_get_n_buckets_used (table);
+ size_t max_bucket_length = hash_get_max_bucket_length (table);
+
+ fprintf (stream, "# entries: %lu\n", (unsigned long int) n_entries);
+ fprintf (stream, "# buckets: %lu\n", (unsigned long int) n_buckets);
+ fprintf (stream, "# buckets used: %lu (%.2f%%)\n",
+ (unsigned long int) n_buckets_used,
+ (100.0 * n_buckets_used) / n_buckets);
+ fprintf (stream, "max bucket length: %lu\n",
+ (unsigned long int) max_bucket_length);
+}
+
+/* If ENTRY matches an entry already in the hash table, return the
+ entry from the table. Otherwise, return NULL. */
+
+void *
+hash_lookup (const Hash_table *table, const void *entry)
+{
+ struct hash_entry const *bucket
+ = table->bucket + table->hasher (entry, table->n_buckets);
+ struct hash_entry const *cursor;
+
+ if (! (bucket < table->bucket_limit))
+ abort ();
+
+ if (bucket->data == NULL)
+ return NULL;
+
+ for (cursor = bucket; cursor; cursor = cursor->next)
+ if (table->comparator (entry, cursor->data))
+ return cursor->data;
+
+ return NULL;
+}
+
+/* Walking. */
+
+/* The functions in this page traverse the hash table and process the
+ contained entries. For the traversal to work properly, the hash table
+ should not be resized nor modified while any particular entry is being
+ processed. In particular, entries should not be added or removed. */
+
+/* Return the first data in the table, or NULL if the table is empty. */
+
+void *
+hash_get_first (const Hash_table *table)
+{
+ struct hash_entry const *bucket;
+
+ if (table->n_entries == 0)
+ return NULL;
+
+ for (bucket = table->bucket; ; bucket++)
+ if (! (bucket < table->bucket_limit))
+ abort ();
+ else if (bucket->data)
+ return bucket->data;
+}
+
+/* Return the user data for the entry following ENTRY, where ENTRY has been
+ returned by a previous call to either `hash_get_first' or `hash_get_next'.
+ Return NULL if there are no more entries. */
+
+void *
+hash_get_next (const Hash_table *table, const void *entry)
+{
+ struct hash_entry const *bucket
+ = table->bucket + table->hasher (entry, table->n_buckets);
+ struct hash_entry const *cursor;
+
+ if (! (bucket < table->bucket_limit))
+ abort ();
+
+ /* Find next entry in the same bucket. */
+ for (cursor = bucket; cursor; cursor = cursor->next)
+ if (cursor->data == entry && cursor->next)
+ return cursor->next->data;
+
+ /* Find first entry in any subsequent bucket. */
+ while (++bucket < table->bucket_limit)
+ if (bucket->data)
+ return bucket->data;
+
+ /* None found. */
+ return NULL;
+}
+
+/* Fill BUFFER with pointers to active user entries in the hash table, then
+ return the number of pointers copied. Do not copy more than BUFFER_SIZE
+ pointers. */
+
+size_t
+hash_get_entries (const Hash_table *table, void **buffer,
+ size_t buffer_size)
+{
+ size_t counter = 0;
+ struct hash_entry const *bucket;
+ struct hash_entry const *cursor;
+
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ if (bucket->data)
+ {
+ for (cursor = bucket; cursor; cursor = cursor->next)
+ {
+ if (counter >= buffer_size)
+ return counter;
+ buffer[counter++] = cursor->data;
+ }
+ }
+ }
+
+ return counter;
+}
+
+/* Call a PROCESSOR function for each entry of a hash table, and return the
+ number of entries for which the processor function returned success. A
+ pointer to some PROCESSOR_DATA which will be made available to each call to
+ the processor function. The PROCESSOR accepts two arguments: the first is
+ the user entry being walked into, the second is the value of PROCESSOR_DATA
+ as received. The walking continue for as long as the PROCESSOR function
+ returns nonzero. When it returns zero, the walking is interrupted. */
+
+size_t
+hash_do_for_each (const Hash_table *table, Hash_processor processor,
+ void *processor_data)
+{
+ size_t counter = 0;
+ struct hash_entry const *bucket;
+ struct hash_entry const *cursor;
+
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ if (bucket->data)
+ {
+ for (cursor = bucket; cursor; cursor = cursor->next)
+ {
+ if (!(*processor) (cursor->data, processor_data))
+ return counter;
+ counter++;
+ }
+ }
+ }
+
+ return counter;
+}
+
+/* Allocation and clean-up. */
+
+/* Return a hash index for a NUL-terminated STRING between 0 and N_BUCKETS-1.
+ This is a convenience routine for constructing other hashing functions. */
+
+#if USE_DIFF_HASH
+
+/* About hashings, Paul Eggert writes to me (FP), on 1994-01-01: "Please see
+ B. J. McKenzie, R. Harries & T. Bell, Selecting a hashing algorithm,
+ Software--practice & experience 20, 2 (Feb 1990), 209-224. Good hash
+ algorithms tend to be domain-specific, so what's good for [diffutils'] io.c
+ may not be good for your application." */
+
+size_t
+hash_string (const char *string, size_t n_buckets)
+{
+# define ROTATE_LEFT(Value, Shift) \
+ ((Value) << (Shift) | (Value) >> ((sizeof (size_t) * CHAR_BIT) - (Shift)))
+# define HASH_ONE_CHAR(Value, Byte) \
+ ((Byte) + ROTATE_LEFT (Value, 7))
+
+ size_t value = 0;
+ unsigned char ch;
+
+ for (; (ch = *string); string++)
+ value = HASH_ONE_CHAR (value, ch);
+ return value % n_buckets;
+
+# undef ROTATE_LEFT
+# undef HASH_ONE_CHAR
+}
+
+#else /* not USE_DIFF_HASH */
+
+/* This one comes from `recode', and performs a bit better than the above as
+ per a few experiments. It is inspired from a hashing routine found in the
+ very old Cyber `snoop', itself written in typical Greg Mansfield style.
+ (By the way, what happened to this excellent man? Is he still alive?) */
+
+size_t
+hash_string (const char *string, size_t n_buckets)
+{
+ size_t value = 0;
+ unsigned char ch;
+
+ for (; (ch = *string); string++)
+ value = (value * 31 + ch) % n_buckets;
+ return value;
+}
+
+#endif /* not USE_DIFF_HASH */
+
+/* Return true if CANDIDATE is a prime number. CANDIDATE should be an odd
+ number at least equal to 11. */
+
+static bool
+is_prime (size_t candidate)
+{
+ size_t divisor = 3;
+ size_t square = divisor * divisor;
+
+ while (square < candidate && (candidate % divisor))
+ {
+ divisor++;
+ square += 4 * divisor;
+ divisor++;
+ }
+
+ return (candidate % divisor ? true : false);
+}
+
+/* Round a given CANDIDATE number up to the nearest prime, and return that
+ prime. Primes lower than 10 are merely skipped. */
+
+static size_t
+next_prime (size_t candidate)
+{
+ /* Skip small primes. */
+ if (candidate < 10)
+ candidate = 10;
+
+ /* Make it definitely odd. */
+ candidate |= 1;
+
+ while (!is_prime (candidate))
+ candidate += 2;
+
+ return candidate;
+}
+
+void
+hash_reset_tuning (Hash_tuning *tuning)
+{
+ *tuning = default_tuning;
+}
+
+/* For the given hash TABLE, check the user supplied tuning structure for
+ reasonable values, and return true if there is no gross error with it.
+ Otherwise, definitively reset the TUNING field to some acceptable default
+ in the hash table (that is, the user loses the right of further modifying
+ tuning arguments), and return false. */
+
+static bool
+check_tuning (Hash_table *table)
+{
+ const Hash_tuning *tuning = table->tuning;
+
+ /* Be a bit stricter than mathematics would require, so that
+ rounding errors in size calculations do not cause allocations to
+ fail to grow or shrink as they should. The smallest allocation
+ is 11 (due to next_prime's algorithm), so an epsilon of 0.1
+ should be good enough. */
+ float epsilon = 0.1f;
+
+ if (epsilon < tuning->growth_threshold
+ && tuning->growth_threshold < 1 - epsilon
+ && 1 + epsilon < tuning->growth_factor
+ && 0 <= tuning->shrink_threshold
+ && tuning->shrink_threshold + epsilon < tuning->shrink_factor
+ && tuning->shrink_factor <= 1
+ && tuning->shrink_threshold + epsilon < tuning->growth_threshold)
+ return true;
+
+ table->tuning = &default_tuning;
+ return false;
+}
+
+/* Allocate and return a new hash table, or NULL upon failure. The initial
+ number of buckets is automatically selected so as to _guarantee_ that you
+ may insert at least CANDIDATE different user entries before any growth of
+ the hash table size occurs. So, if have a reasonably tight a-priori upper
+ bound on the number of entries you intend to insert in the hash table, you
+ may save some table memory and insertion time, by specifying it here. If
+ the IS_N_BUCKETS field of the TUNING structure is true, the CANDIDATE
+ argument has its meaning changed to the wanted number of buckets.
+
+ TUNING points to a structure of user-supplied values, in case some fine
+ tuning is wanted over the default behavior of the hasher. If TUNING is
+ NULL, the default tuning parameters are used instead.
+
+ The user-supplied HASHER function should be provided. It accepts two
+ arguments ENTRY and TABLE_SIZE. It computes, by hashing ENTRY contents, a
+ slot number for that entry which should be in the range 0..TABLE_SIZE-1.
+ This slot number is then returned.
+
+ The user-supplied COMPARATOR function should be provided. It accepts two
+ arguments pointing to user data, it then returns true for a pair of entries
+ that compare equal, or false otherwise. This function is internally called
+ on entries which are already known to hash to the same bucket index.
+
+ The user-supplied DATA_FREER function, when not NULL, may be later called
+ with the user data as an argument, just before the entry containing the
+ data gets freed. This happens from within `hash_free' or `hash_clear'.
+ You should specify this function only if you want these functions to free
+ all of your `data' data. This is typically the case when your data is
+ simply an auxiliary struct that you have malloc'd to aggregate several
+ values. */
+
+Hash_table *
+hash_initialize (size_t candidate, const Hash_tuning *tuning,
+ Hash_hasher hasher, Hash_comparator comparator,
+ Hash_data_freer data_freer)
+{
+ Hash_table *table;
+
+ if (hasher == NULL || comparator == NULL)
+ return NULL;
+
+ table = malloc (sizeof *table);
+ if (table == NULL)
+ return NULL;
+
+ if (!tuning)
+ tuning = &default_tuning;
+ table->tuning = tuning;
+ if (!check_tuning (table))
+ {
+ /* Fail if the tuning options are invalid. This is the only occasion
+ when the user gets some feedback about it. Once the table is created,
+ if the user provides invalid tuning options, we silently revert to
+ using the defaults, and ignore further request to change the tuning
+ options. */
+ goto fail;
+ }
+
+ if (!tuning->is_n_buckets)
+ {
+ float new_candidate = candidate / tuning->growth_threshold;
+ if (SIZE_MAX <= new_candidate)
+ goto fail;
+ candidate = new_candidate;
+ }
+
+ if (xalloc_oversized (candidate, sizeof *table->bucket))
+ goto fail;
+ table->n_buckets = next_prime (candidate);
+ if (xalloc_oversized (table->n_buckets, sizeof *table->bucket))
+ goto fail;
+
+ table->bucket = calloc (table->n_buckets, sizeof *table->bucket);
+ table->bucket_limit = table->bucket + table->n_buckets;
+ table->n_buckets_used = 0;
+ table->n_entries = 0;
+
+ table->hasher = hasher;
+ table->comparator = comparator;
+ table->data_freer = data_freer;
+
+ table->free_entry_list = NULL;
+#if USE_OBSTACK
+ obstack_init (&table->entry_stack);
+#endif
+ return table;
+
+ fail:
+ free (table);
+ return NULL;
+}
+
+/* Make all buckets empty, placing any chained entries on the free list.
+ Apply the user-specified function data_freer (if any) to the datas of any
+ affected entries. */
+
+void
+hash_clear (Hash_table *table)
+{
+ struct hash_entry *bucket;
+
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ if (bucket->data)
+ {
+ struct hash_entry *cursor;
+ struct hash_entry *next;
+
+ /* Free the bucket overflow. */
+ for (cursor = bucket->next; cursor; cursor = next)
+ {
+ if (table->data_freer)
+ (*table->data_freer) (cursor->data);
+ cursor->data = NULL;
+
+ next = cursor->next;
+ /* Relinking is done one entry at a time, as it is to be expected
+ that overflows are either rare or short. */
+ cursor->next = table->free_entry_list;
+ table->free_entry_list = cursor;
+ }
+
+ /* Free the bucket head. */
+ if (table->data_freer)
+ (*table->data_freer) (bucket->data);
+ bucket->data = NULL;
+ bucket->next = NULL;
+ }
+ }
+
+ table->n_buckets_used = 0;
+ table->n_entries = 0;
+}
+
+/* Reclaim all storage associated with a hash table. If a data_freer
+ function has been supplied by the user when the hash table was created,
+ this function applies it to the data of each entry before freeing that
+ entry. */
+
+void
+hash_free (Hash_table *table)
+{
+ struct hash_entry *bucket;
+ struct hash_entry *cursor;
+ struct hash_entry *next;
+
+ /* Call the user data_freer function. */
+ if (table->data_freer && table->n_entries)
+ {
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ if (bucket->data)
+ {
+ for (cursor = bucket; cursor; cursor = cursor->next)
+ {
+ (*table->data_freer) (cursor->data);
+ }
+ }
+ }
+ }
+
+#if USE_OBSTACK
+
+ obstack_free (&table->entry_stack, NULL);
+
+#else
+
+ /* Free all bucket overflowed entries. */
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ for (cursor = bucket->next; cursor; cursor = next)
+ {
+ next = cursor->next;
+ free (cursor);
+ }
+ }
+
+ /* Also reclaim the internal list of previously freed entries. */
+ for (cursor = table->free_entry_list; cursor; cursor = next)
+ {
+ next = cursor->next;
+ free (cursor);
+ }
+
+#endif
+
+ /* Free the remainder of the hash table structure. */
+ free (table->bucket);
+ free (table);
+}
+
+/* Insertion and deletion. */
+
+/* Get a new hash entry for a bucket overflow, possibly by reclying a
+ previously freed one. If this is not possible, allocate a new one. */
+
+static struct hash_entry *
+allocate_entry (Hash_table *table)
+{
+ struct hash_entry *new;
+
+ if (table->free_entry_list)
+ {
+ new = table->free_entry_list;
+ table->free_entry_list = new->next;
+ }
+ else
+ {
+#if USE_OBSTACK
+ new = obstack_alloc (&table->entry_stack, sizeof *new);
+#else
+ new = malloc (sizeof *new);
+#endif
+ }
+
+ return new;
+}
+
+/* Free a hash entry which was part of some bucket overflow,
+ saving it for later recycling. */
+
+static void
+free_entry (Hash_table *table, struct hash_entry *entry)
+{
+ entry->data = NULL;
+ entry->next = table->free_entry_list;
+ table->free_entry_list = entry;
+}
+
+/* This private function is used to help with insertion and deletion. When
+ ENTRY matches an entry in the table, return a pointer to the corresponding
+ user data and set *BUCKET_HEAD to the head of the selected bucket.
+ Otherwise, return NULL. When DELETE is true and ENTRY matches an entry in
+ the table, unlink the matching entry. */
+
+static void *
+hash_find_entry (Hash_table *table, const void *entry,
+ struct hash_entry **bucket_head, bool delete)
+{
+ struct hash_entry *bucket
+ = table->bucket + table->hasher (entry, table->n_buckets);
+ struct hash_entry *cursor;
+
+ if (! (bucket < table->bucket_limit))
+ abort ();
+
+ *bucket_head = bucket;
+
+ /* Test for empty bucket. */
+ if (bucket->data == NULL)
+ return NULL;
+
+ /* See if the entry is the first in the bucket. */
+ if ((*table->comparator) (entry, bucket->data))
+ {
+ void *data = bucket->data;
+
+ if (delete)
+ {
+ if (bucket->next)
+ {
+ struct hash_entry *next = bucket->next;
+
+ /* Bump the first overflow entry into the bucket head, then save
+ the previous first overflow entry for later recycling. */
+ *bucket = *next;
+ free_entry (table, next);
+ }
+ else
+ {
+ bucket->data = NULL;
+ }
+ }
+
+ return data;
+ }
+
+ /* Scan the bucket overflow. */
+ for (cursor = bucket; cursor->next; cursor = cursor->next)
+ {
+ if ((*table->comparator) (entry, cursor->next->data))
+ {
+ void *data = cursor->next->data;
+
+ if (delete)
+ {
+ struct hash_entry *next = cursor->next;
+
+ /* Unlink the entry to delete, then save the freed entry for later
+ recycling. */
+ cursor->next = next->next;
+ free_entry (table, next);
+ }
+
+ return data;
+ }
+ }
+
+ /* No entry found. */
+ return NULL;
+}
+
+/* For an already existing hash table, change the number of buckets through
+ specifying CANDIDATE. The contents of the hash table are preserved. The
+ new number of buckets is automatically selected so as to _guarantee_ that
+ the table may receive at least CANDIDATE different user entries, including
+ those already in the table, before any other growth of the hash table size
+ occurs. If TUNING->IS_N_BUCKETS is true, then CANDIDATE specifies the
+ exact number of buckets desired. */
+
+bool
+hash_rehash (Hash_table *table, size_t candidate)
+{
+ Hash_table *new_table;
+ struct hash_entry *bucket;
+ struct hash_entry *cursor;
+ struct hash_entry *next;
+
+ new_table = hash_initialize (candidate, table->tuning, table->hasher,
+ table->comparator, table->data_freer);
+ if (new_table == NULL)
+ return false;
+
+ /* Merely reuse the extra old space into the new table. */
+#if USE_OBSTACK
+ obstack_free (&new_table->entry_stack, NULL);
+ new_table->entry_stack = table->entry_stack;
+#endif
+ new_table->free_entry_list = table->free_entry_list;
+
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ if (bucket->data)
+ for (cursor = bucket; cursor; cursor = next)
+ {
+ void *data = cursor->data;
+ struct hash_entry *new_bucket
+ = (new_table->bucket
+ + new_table->hasher (data, new_table->n_buckets));
+
+ if (! (new_bucket < new_table->bucket_limit))
+ abort ();
+
+ next = cursor->next;
+
+ if (new_bucket->data)
+ {
+ if (cursor == bucket)
+ {
+ /* Allocate or recycle an entry, when moving from a bucket
+ header into a bucket overflow. */
+ struct hash_entry *new_entry = allocate_entry (new_table);
+
+ if (new_entry == NULL)
+ return false;
+
+ new_entry->data = data;
+ new_entry->next = new_bucket->next;
+ new_bucket->next = new_entry;
+ }
+ else
+ {
+ /* Merely relink an existing entry, when moving from a
+ bucket overflow into a bucket overflow. */
+ cursor->next = new_bucket->next;
+ new_bucket->next = cursor;
+ }
+ }
+ else
+ {
+ /* Free an existing entry, when moving from a bucket
+ overflow into a bucket header. Also take care of the
+ simple case of moving from a bucket header into a bucket
+ header. */
+ new_bucket->data = data;
+ new_table->n_buckets_used++;
+ if (cursor != bucket)
+ free_entry (new_table, cursor);
+ }
+ }
+
+ free (table->bucket);
+ table->bucket = new_table->bucket;
+ table->bucket_limit = new_table->bucket_limit;
+ table->n_buckets = new_table->n_buckets;
+ table->n_buckets_used = new_table->n_buckets_used;
+ table->free_entry_list = new_table->free_entry_list;
+ /* table->n_entries already holds its value. */
+#if USE_OBSTACK
+ table->entry_stack = new_table->entry_stack;
+#endif
+ free (new_table);
+
+ return true;
+}
+
+/* If ENTRY matches an entry already in the hash table, return the pointer
+ to the entry from the table. Otherwise, insert ENTRY and return ENTRY.
+ Return NULL if the storage required for insertion cannot be allocated. */
+
+void *
+hash_insert (Hash_table *table, const void *entry)
+{
+ void *data;
+ struct hash_entry *bucket;
+
+ /* The caller cannot insert a NULL entry. */
+ if (! entry)
+ abort ();
+
+ /* If there's a matching entry already in the table, return that. */
+ if ((data = hash_find_entry (table, entry, &bucket, false)) != NULL)
+ return data;
+
+ /* ENTRY is not matched, it should be inserted. */
+
+ if (bucket->data)
+ {
+ struct hash_entry *new_entry = allocate_entry (table);
+
+ if (new_entry == NULL)
+ return NULL;
+
+ /* Add ENTRY in the overflow of the bucket. */
+
+ new_entry->data = (void *) entry;
+ new_entry->next = bucket->next;
+ bucket->next = new_entry;
+ table->n_entries++;
+ return (void *) entry;
+ }
+
+ /* Add ENTRY right in the bucket head. */
+
+ bucket->data = (void *) entry;
+ table->n_entries++;
+ table->n_buckets_used++;
+
+ /* If the growth threshold of the buckets in use has been reached, increase
+ the table size and rehash. There's no point in checking the number of
+ entries: if the hashing function is ill-conditioned, rehashing is not
+ likely to improve it. */
+
+ if (table->n_buckets_used
+ > table->tuning->growth_threshold * table->n_buckets)
+ {
+ /* Check more fully, before starting real work. If tuning arguments
+ became invalid, the second check will rely on proper defaults. */
+ check_tuning (table);
+ if (table->n_buckets_used
+ > table->tuning->growth_threshold * table->n_buckets)
+ {
+ const Hash_tuning *tuning = table->tuning;
+ float candidate =
+ (tuning->is_n_buckets
+ ? (table->n_buckets * tuning->growth_factor)
+ : (table->n_buckets * tuning->growth_factor
+ * tuning->growth_threshold));
+
+ if (SIZE_MAX <= candidate)
+ return NULL;
+
+ /* If the rehash fails, arrange to return NULL. */
+ if (!hash_rehash (table, candidate))
+ entry = NULL;
+ }
+ }
+
+ return (void *) entry;
+}
+
+/* If ENTRY is already in the table, remove it and return the just-deleted
+ data (the user may want to deallocate its storage). If ENTRY is not in the
+ table, don't modify the table and return NULL. */
+
+void *
+hash_delete (Hash_table *table, const void *entry)
+{
+ void *data;
+ struct hash_entry *bucket;
+
+ data = hash_find_entry (table, entry, &bucket, true);
+ if (!data)
+ return NULL;
+
+ table->n_entries--;
+ if (!bucket->data)
+ {
+ table->n_buckets_used--;
+
+ /* If the shrink threshold of the buckets in use has been reached,
+ rehash into a smaller table. */
+
+ if (table->n_buckets_used
+ < table->tuning->shrink_threshold * table->n_buckets)
+ {
+ /* Check more fully, before starting real work. If tuning arguments
+ became invalid, the second check will rely on proper defaults. */
+ check_tuning (table);
+ if (table->n_buckets_used
+ < table->tuning->shrink_threshold * table->n_buckets)
+ {
+ const Hash_tuning *tuning = table->tuning;
+ size_t candidate =
+ (tuning->is_n_buckets
+ ? table->n_buckets * tuning->shrink_factor
+ : (table->n_buckets * tuning->shrink_factor
+ * tuning->growth_threshold));
+
+ hash_rehash (table, candidate);
+ }
+ }
+ }
+
+ return data;
+}
+
+/* Testing. */
+
+#if TESTING
+
+void
+hash_print (const Hash_table *table)
+{
+ struct hash_entry const *bucket;
+
+ for (bucket = table->bucket; bucket < table->bucket_limit; bucket++)
+ {
+ struct hash_entry *cursor;
+
+ if (bucket)
+ printf ("%lu:\n", (unsigned long int) (bucket - table->bucket));
+
+ for (cursor = bucket; cursor; cursor = cursor->next)
+ {
+ char const *s = cursor->data;
+ /* FIXME */
+ if (s)
+ printf (" %s\n", s);
+ }
+ }
+}
+
+#endif /* TESTING */
diff --git a/lib/hash.h b/lib/hash.h
new file mode 100644
index 0000000..ab63a86
--- /dev/null
+++ b/lib/hash.h
@@ -0,0 +1,88 @@
+/* hash - hashing table processing.
+ Copyright (C) 1998, 1999, 2001, 2003 Free Software Foundation, Inc.
+ Written by Jim Meyering <meyering@ascend.com>, 1998.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* A generic hash table package. */
+
+/* Make sure USE_OBSTACK is defined to 1 if you want the allocator to use
+ obstacks instead of malloc, and recompile `hash.c' with same setting. */
+
+#ifndef HASH_H_
+# define HASH_H_
+
+# include <stdio.h>
+# include <stdbool.h>
+
+typedef size_t (*Hash_hasher) (const void *, size_t);
+typedef bool (*Hash_comparator) (const void *, const void *);
+typedef void (*Hash_data_freer) (void *);
+typedef bool (*Hash_processor) (void *, void *);
+
+struct hash_entry
+ {
+ void *data;
+ struct hash_entry *next;
+ };
+
+struct hash_tuning
+ {
+ /* This structure is mainly used for `hash_initialize', see the block
+ documentation of `hash_reset_tuning' for more complete comments. */
+
+ float shrink_threshold; /* ratio of used buckets to trigger a shrink */
+ float shrink_factor; /* ratio of new smaller size to original size */
+ float growth_threshold; /* ratio of used buckets to trigger a growth */
+ float growth_factor; /* ratio of new bigger size to original size */
+ bool is_n_buckets; /* if CANDIDATE really means table size */
+ };
+
+typedef struct hash_tuning Hash_tuning;
+
+struct hash_table;
+
+typedef struct hash_table Hash_table;
+
+/* Information and lookup. */
+size_t hash_get_n_buckets (const Hash_table *);
+size_t hash_get_n_buckets_used (const Hash_table *);
+size_t hash_get_n_entries (const Hash_table *);
+size_t hash_get_max_bucket_length (const Hash_table *);
+bool hash_table_ok (const Hash_table *);
+void hash_print_statistics (const Hash_table *, FILE *);
+void *hash_lookup (const Hash_table *, const void *);
+
+/* Walking. */
+void *hash_get_first (const Hash_table *);
+void *hash_get_next (const Hash_table *, const void *);
+size_t hash_get_entries (const Hash_table *, void **, size_t);
+size_t hash_do_for_each (const Hash_table *, Hash_processor, void *);
+
+/* Allocation and clean-up. */
+size_t hash_string (const char *, size_t);
+void hash_reset_tuning (Hash_tuning *);
+Hash_table *hash_initialize (size_t, const Hash_tuning *,
+ Hash_hasher, Hash_comparator,
+ Hash_data_freer);
+void hash_clear (Hash_table *);
+void hash_free (Hash_table *);
+
+/* Insertion and deletion. */
+bool hash_rehash (Hash_table *, size_t);
+void *hash_insert (Hash_table *, const void *);
+void *hash_delete (Hash_table *, const void *);
+
+#endif
diff --git a/lib/lbitset.c b/lib/lbitset.c
new file mode 100644
index 0000000..7d47a05
--- /dev/null
+++ b/lib/lbitset.c
@@ -0,0 +1,1405 @@
+/* Functions to support link list bitsets.
+ Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "lbitset.h"
+#include "obstack.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+/* This file implements linked-list bitsets. These bitsets can be of
+ arbitrary length and are more efficient than arrays of bits for
+ large sparse sets.
+
+ Usually if all the bits in an element are zero we remove the element
+ from the list. However, a side effect of the bit caching is that we
+ do not always notice when an element becomes zero. Hence the
+ lbitset_weed function which removes zero elements. */
+
+
+/* Number of words to use for each element. The larger the value the
+ greater the size of the cache and the shorter the time to find a given bit
+ but the more memory wasted for sparse bitsets and the longer the time
+ to search for set bits.
+
+ The routines that dominate timing profiles are lbitset_elt_find
+ and lbitset_elt_link, especially when accessing the bits randomly. */
+
+#define LBITSET_ELT_WORDS 2
+
+typedef bitset_word lbitset_word;
+
+#define LBITSET_WORD_BITS BITSET_WORD_BITS
+
+/* Number of bits stored in each element. */
+#define LBITSET_ELT_BITS \
+ ((unsigned int) (LBITSET_ELT_WORDS * LBITSET_WORD_BITS))
+
+/* Lbitset element. We use an array of bits for each element.
+ These are linked together in a doubly-linked list. */
+typedef struct lbitset_elt_struct
+{
+ struct lbitset_elt_struct *next; /* Next element. */
+ struct lbitset_elt_struct *prev; /* Previous element. */
+ bitset_windex index; /* bitno / BITSET_WORD_BITS. */
+ bitset_word words[LBITSET_ELT_WORDS]; /* Bits that are set. */
+}
+lbitset_elt;
+
+
+enum lbitset_find_mode
+ { LBITSET_FIND, LBITSET_CREATE, LBITSET_SUBST };
+
+static lbitset_elt lbitset_zero_elts[3]; /* Elements of all zero bits. */
+
+/* Obstack to allocate bitset elements from. */
+static struct obstack lbitset_obstack;
+static bool lbitset_obstack_init = false;
+static lbitset_elt *lbitset_free_list; /* Free list of bitset elements. */
+
+extern void debug_lbitset (bitset);
+
+#define LBITSET_CURRENT1(X) \
+ ((lbitset_elt *) (void *) ((char *) (X) - offsetof (lbitset_elt, words)))
+
+#define LBITSET_CURRENT(X) LBITSET_CURRENT1((X)->b.cdata)
+
+#define LBITSET_HEAD(X) ((X)->l.head)
+#define LBITSET_TAIL(X) ((X)->l.tail)
+
+/* Allocate a lbitset element. The bits are not cleared. */
+static inline lbitset_elt *
+lbitset_elt_alloc (void)
+{
+ lbitset_elt *elt;
+
+ if (lbitset_free_list != 0)
+ {
+ elt = lbitset_free_list;
+ lbitset_free_list = elt->next;
+ }
+ else
+ {
+ if (!lbitset_obstack_init)
+ {
+ lbitset_obstack_init = true;
+
+ /* Let particular systems override the size of a chunk. */
+
+#ifndef OBSTACK_CHUNK_SIZE
+#define OBSTACK_CHUNK_SIZE 0
+#endif
+
+ /* Let them override the alloc and free routines too. */
+
+#ifndef OBSTACK_CHUNK_ALLOC
+#define OBSTACK_CHUNK_ALLOC xmalloc
+#endif
+
+#ifndef OBSTACK_CHUNK_FREE
+#define OBSTACK_CHUNK_FREE free
+#endif
+
+#if ! defined __GNUC__ || __GNUC__ < 2
+#define __alignof__(type) 0
+#endif
+
+ obstack_specify_allocation (&lbitset_obstack, OBSTACK_CHUNK_SIZE,
+ __alignof__ (lbitset_elt),
+ OBSTACK_CHUNK_ALLOC,
+ OBSTACK_CHUNK_FREE);
+ }
+
+ /* Perhaps we should add a number of new elements to the free
+ list. */
+ elt = (lbitset_elt *) obstack_alloc (&lbitset_obstack,
+ sizeof (lbitset_elt));
+ }
+
+ return elt;
+}
+
+
+/* Allocate a lbitset element. The bits are cleared. */
+static inline lbitset_elt *
+lbitset_elt_calloc (void)
+{
+ lbitset_elt *elt;
+
+ elt = lbitset_elt_alloc ();
+ memset (elt->words, 0, sizeof (elt->words));
+ return elt;
+}
+
+
+static inline void
+lbitset_elt_free (lbitset_elt *elt)
+{
+ elt->next = lbitset_free_list;
+ lbitset_free_list = elt;
+}
+
+
+/* Unlink element ELT from bitset BSET. */
+static inline void
+lbitset_elt_unlink (bitset bset, lbitset_elt *elt)
+{
+ lbitset_elt *next = elt->next;
+ lbitset_elt *prev = elt->prev;
+
+ if (prev)
+ prev->next = next;
+
+ if (next)
+ next->prev = prev;
+
+ if (LBITSET_HEAD (bset) == elt)
+ LBITSET_HEAD (bset) = next;
+ if (LBITSET_TAIL (bset) == elt)
+ LBITSET_TAIL (bset) = prev;
+
+ /* Update cache pointer. Since the first thing we try is to insert
+ before current, make current the next entry in preference to the
+ previous. */
+ if (LBITSET_CURRENT (bset) == elt)
+ {
+ if (next)
+ {
+ bset->b.cdata = next->words;
+ bset->b.cindex = next->index;
+ }
+ else if (prev)
+ {
+ bset->b.cdata = prev->words;
+ bset->b.cindex = prev->index;
+ }
+ else
+ {
+ bset->b.csize = 0;
+ bset->b.cdata = 0;
+ }
+ }
+
+ lbitset_elt_free (elt);
+}
+
+
+/* Cut the chain of bitset BSET before element ELT and free the
+ elements. */
+static inline void
+lbitset_prune (bitset bset, lbitset_elt *elt)
+{
+ lbitset_elt *next;
+
+ if (!elt)
+ return;
+
+ if (elt->prev)
+ {
+ LBITSET_TAIL (bset) = elt->prev;
+ bset->b.cdata = elt->prev->words;
+ bset->b.cindex = elt->prev->index;
+ elt->prev->next = 0;
+ }
+ else
+ {
+ LBITSET_HEAD (bset) = 0;
+ LBITSET_TAIL (bset) = 0;
+ bset->b.cdata = 0;
+ bset->b.csize = 0;
+ }
+
+ for (; elt; elt = next)
+ {
+ next = elt->next;
+ lbitset_elt_free (elt);
+ }
+}
+
+
+/* Are all bits in an element zero? */
+static inline bool
+lbitset_elt_zero_p (lbitset_elt *elt)
+{
+ int i;
+
+ for (i = 0; i < LBITSET_ELT_WORDS; i++)
+ if (elt->words[i])
+ return false;
+
+ return true;
+}
+
+
+/* Link the bitset element into the current bitset linked list. */
+static inline void
+lbitset_elt_link (bitset bset, lbitset_elt *elt)
+{
+ bitset_windex windex = elt->index;
+ lbitset_elt *ptr;
+ lbitset_elt *current;
+
+ if (bset->b.csize)
+ current = LBITSET_CURRENT (bset);
+ else
+ current = LBITSET_HEAD (bset);
+
+ /* If this is the first and only element, add it in. */
+ if (LBITSET_HEAD (bset) == 0)
+ {
+ elt->next = elt->prev = 0;
+ LBITSET_HEAD (bset) = elt;
+ LBITSET_TAIL (bset) = elt;
+ }
+
+ /* If this index is less than that of the current element, it goes
+ somewhere before the current element. */
+ else if (windex < bset->b.cindex)
+ {
+ for (ptr = current;
+ ptr->prev && ptr->prev->index > windex; ptr = ptr->prev)
+ continue;
+
+ if (ptr->prev)
+ ptr->prev->next = elt;
+ else
+ LBITSET_HEAD (bset) = elt;
+
+ elt->prev = ptr->prev;
+ elt->next = ptr;
+ ptr->prev = elt;
+ }
+
+ /* Otherwise, it must go somewhere after the current element. */
+ else
+ {
+ for (ptr = current;
+ ptr->next && ptr->next->index < windex; ptr = ptr->next)
+ continue;
+
+ if (ptr->next)
+ ptr->next->prev = elt;
+ else
+ LBITSET_TAIL (bset) = elt;
+
+ elt->next = ptr->next;
+ elt->prev = ptr;
+ ptr->next = elt;
+ }
+
+ /* Set up so this is the first element searched. */
+ bset->b.cindex = windex;
+ bset->b.csize = LBITSET_ELT_WORDS;
+ bset->b.cdata = elt->words;
+}
+
+
+static lbitset_elt *
+lbitset_elt_find (bitset bset, bitset_windex windex,
+ enum lbitset_find_mode mode)
+{
+ lbitset_elt *elt;
+ lbitset_elt *current;
+
+ if (bset->b.csize)
+ {
+ current = LBITSET_CURRENT (bset);
+ /* Check if element is the cached element. */
+ if ((windex - bset->b.cindex) < bset->b.csize)
+ return current;
+ }
+ else
+ {
+ current = LBITSET_HEAD (bset);
+ }
+
+ if (current)
+ {
+ if (windex < bset->b.cindex)
+ {
+ for (elt = current;
+ elt->prev && elt->index > windex; elt = elt->prev)
+ continue;
+ }
+ else
+ {
+ for (elt = current;
+ elt->next && (elt->index + LBITSET_ELT_WORDS - 1) < windex;
+ elt = elt->next)
+ continue;
+ }
+
+ /* ELT is the nearest to the one we want. If it's not the one
+ we want, the one we want does not exist. */
+ if (elt && (windex - elt->index) < LBITSET_ELT_WORDS)
+ {
+ bset->b.cindex = elt->index;
+ bset->b.csize = LBITSET_ELT_WORDS;
+ bset->b.cdata = elt->words;
+ return elt;
+ }
+ }
+
+ switch (mode)
+ {
+ default:
+ abort ();
+
+ case LBITSET_FIND:
+ return 0;
+
+ case LBITSET_CREATE:
+ windex -= windex % LBITSET_ELT_WORDS;
+
+ elt = lbitset_elt_calloc ();
+ elt->index = windex;
+ lbitset_elt_link (bset, elt);
+ return elt;
+
+ case LBITSET_SUBST:
+ return &lbitset_zero_elts[0];
+ }
+}
+
+
+/* Weed out the zero elements from the list. */
+static inline void
+lbitset_weed (bitset bset)
+{
+ lbitset_elt *elt;
+ lbitset_elt *next;
+
+ for (elt = LBITSET_HEAD (bset); elt; elt = next)
+ {
+ next = elt->next;
+ if (lbitset_elt_zero_p (elt))
+ lbitset_elt_unlink (bset, elt);
+ }
+}
+
+
+/* Set all bits in the bitset to zero. */
+static void
+lbitset_zero (bitset bset)
+{
+ lbitset_elt *head;
+
+ head = LBITSET_HEAD (bset);
+ if (!head)
+ return;
+
+ /* Clear a bitset by freeing the linked list at the head element. */
+ lbitset_prune (bset, head);
+}
+
+
+/* Is DST == SRC? */
+static inline bool
+lbitset_equal_p (bitset dst, bitset src)
+{
+ lbitset_elt *selt;
+ lbitset_elt *delt;
+ int j;
+
+ if (src == dst)
+ return true;
+
+ lbitset_weed (src);
+ lbitset_weed (dst);
+ for (selt = LBITSET_HEAD (src), delt = LBITSET_HEAD (dst);
+ selt && delt; selt = selt->next, delt = delt->next)
+ {
+ if (selt->index != delt->index)
+ return false;
+
+ for (j = 0; j < LBITSET_ELT_WORDS; j++)
+ if (delt->words[j] != selt->words[j])
+ return false;
+ }
+ return !selt && !delt;
+}
+
+
+/* Copy bits from bitset SRC to bitset DST. */
+static inline void
+lbitset_copy (bitset dst, bitset src)
+{
+ lbitset_elt *elt;
+ lbitset_elt *head;
+ lbitset_elt *prev;
+ lbitset_elt *tmp;
+
+ if (src == dst)
+ return;
+
+ lbitset_zero (dst);
+
+ head = LBITSET_HEAD (src);
+ if (!head)
+ return;
+
+ prev = 0;
+ for (elt = head; elt; elt = elt->next)
+ {
+ tmp = lbitset_elt_alloc ();
+ tmp->index = elt->index;
+ tmp->prev = prev;
+ tmp->next = 0;
+ if (prev)
+ prev->next = tmp;
+ else
+ LBITSET_HEAD (dst) = tmp;
+ prev = tmp;
+
+ memcpy (tmp->words, elt->words, sizeof (elt->words));
+ }
+ LBITSET_TAIL (dst) = tmp;
+
+ dst->b.csize = LBITSET_ELT_WORDS;
+ dst->b.cdata = LBITSET_HEAD (dst)->words;
+ dst->b.cindex = LBITSET_HEAD (dst)->index;
+}
+
+
+/* Copy bits from bitset SRC to bitset DST. Return true if
+ bitsets different. */
+static inline bool
+lbitset_copy_cmp (bitset dst, bitset src)
+{
+ if (src == dst)
+ return false;
+
+ if (!LBITSET_HEAD (dst))
+ {
+ lbitset_copy (dst, src);
+ return LBITSET_HEAD (src) != 0;
+ }
+
+ if (lbitset_equal_p (dst, src))
+ return false;
+
+ lbitset_copy (dst, src);
+ return true;
+}
+
+
+static bitset_bindex
+lbitset_resize (bitset src, bitset_bindex size)
+{
+ BITSET_NBITS_ (src) = size;
+
+ /* Need to prune any excess bits. FIXME. */
+ return size;
+}
+
+/* Set bit BITNO in bitset DST. */
+static void
+lbitset_set (bitset dst, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+
+ lbitset_elt_find (dst, windex, LBITSET_CREATE);
+
+ dst->b.cdata[windex - dst->b.cindex] |=
+ (bitset_word) 1 << (bitno % BITSET_WORD_BITS);
+}
+
+
+/* Reset bit BITNO in bitset DST. */
+static void
+lbitset_reset (bitset dst, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+
+ if (!lbitset_elt_find (dst, windex, LBITSET_FIND))
+ return;
+
+ dst->b.cdata[windex - dst->b.cindex] &=
+ ~((bitset_word) 1 << (bitno % BITSET_WORD_BITS));
+
+ /* If all the data is zero, perhaps we should unlink it now... */
+}
+
+
+/* Test bit BITNO in bitset SRC. */
+static bool
+lbitset_test (bitset src, bitset_bindex bitno)
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+
+ return (lbitset_elt_find (src, windex, LBITSET_FIND)
+ && ((src->b.cdata[windex - src->b.cindex]
+ >> (bitno % BITSET_WORD_BITS))
+ & 1));
+}
+
+
+static void
+lbitset_free (bitset bset)
+{
+ lbitset_zero (bset);
+}
+
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT and store in array LIST. Return with actual number of bits
+ found and with *NEXT indicating where search stopped. */
+static bitset_bindex
+lbitset_list_reverse (bitset bset, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex rbitno;
+ bitset_bindex bitno;
+ unsigned int bcount;
+ bitset_bindex boffset;
+ bitset_windex windex;
+ bitset_bindex count;
+ lbitset_elt *elt;
+ bitset_word word;
+ bitset_bindex n_bits;
+
+ elt = LBITSET_TAIL (bset);
+ if (!elt)
+ return 0;
+
+ n_bits = (elt->index + LBITSET_ELT_WORDS) * BITSET_WORD_BITS;
+ rbitno = *next;
+
+ if (rbitno >= n_bits)
+ return 0;
+
+ bitno = n_bits - (rbitno + 1);
+
+ windex = bitno / BITSET_WORD_BITS;
+
+ /* Skip back to starting element. */
+ for (; elt && elt->index > windex; elt = elt->prev)
+ continue;
+
+ if (!elt)
+ return 0;
+
+ if (windex >= elt->index + LBITSET_ELT_WORDS)
+ {
+ /* We are trying to start in no-mans land so start
+ at end of current elt. */
+ bcount = BITSET_WORD_BITS - 1;
+ windex = elt->index + LBITSET_ELT_WORDS - 1;
+ }
+ else
+ {
+ bcount = bitno % BITSET_WORD_BITS;
+ }
+
+ count = 0;
+ boffset = windex * BITSET_WORD_BITS;
+
+ /* If num is 1, we could speed things up with a binary search
+ of the word of interest. */
+
+ while (elt)
+ {
+ bitset_word *srcp = elt->words;
+
+ for (; (windex - elt->index) < LBITSET_ELT_WORDS;
+ windex--, boffset -= BITSET_WORD_BITS,
+ bcount = BITSET_WORD_BITS - 1)
+ {
+ word =
+ srcp[windex - elt->index] << (BITSET_WORD_BITS - 1 - bcount);
+
+ for (; word; bcount--)
+ {
+ if (word & BITSET_MSB)
+ {
+ list[count++] = boffset + bcount;
+ if (count >= num)
+ {
+ *next = n_bits - (boffset + bcount);
+ return count;
+ }
+ }
+ word <<= 1;
+ }
+ }
+
+ elt = elt->prev;
+ if (elt)
+ {
+ windex = elt->index + LBITSET_ELT_WORDS - 1;
+ boffset = windex * BITSET_WORD_BITS;
+ }
+ }
+
+ *next = n_bits - (boffset + 1);
+ return count;
+}
+
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT and store in array LIST. Return with actual number of bits
+ found and with *NEXT indicating where search stopped. */
+static bitset_bindex
+lbitset_list (bitset bset, bitset_bindex *list,
+ bitset_bindex num, bitset_bindex *next)
+{
+ bitset_bindex bitno;
+ bitset_windex windex;
+ bitset_bindex count;
+ lbitset_elt *elt;
+ lbitset_elt *head;
+ bitset_word word;
+
+ head = LBITSET_HEAD (bset);
+ if (!head)
+ return 0;
+
+ bitno = *next;
+ count = 0;
+
+ if (!bitno)
+ {
+ /* This is the most common case. */
+
+ /* Start with the first element. */
+ elt = head;
+ windex = elt->index;
+ bitno = windex * BITSET_WORD_BITS;
+ }
+ else
+ {
+ windex = bitno / BITSET_WORD_BITS;
+
+ /* Skip to starting element. */
+ for (elt = head;
+ elt && (elt->index + LBITSET_ELT_WORDS - 1) < windex;
+ elt = elt->next)
+ continue;
+
+ if (!elt)
+ return 0;
+
+ if (windex < elt->index)
+ {
+ windex = elt->index;
+ bitno = windex * BITSET_WORD_BITS;
+ }
+ else
+ {
+ bitset_word *srcp = elt->words;
+
+ /* We are starting within an element. */
+
+ for (; (windex - elt->index) < LBITSET_ELT_WORDS; windex++)
+ {
+ word = srcp[windex - elt->index] >> (bitno % BITSET_WORD_BITS);
+
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ bitno = (windex + 1) * BITSET_WORD_BITS;
+ }
+
+ elt = elt->next;
+ if (elt)
+ {
+ windex = elt->index;
+ bitno = windex * BITSET_WORD_BITS;
+ }
+ }
+ }
+
+
+ /* If num is 1, we could speed things up with a binary search
+ of the word of interest. */
+
+ while (elt)
+ {
+ int i;
+ bitset_word *srcp = elt->words;
+
+ if ((count + LBITSET_ELT_BITS) < num)
+ {
+ /* The coast is clear, plant boot! */
+
+#if LBITSET_ELT_WORDS == 2
+ word = srcp[0];
+ if (word)
+ {
+ if (!(word & 0xffff))
+ {
+ word >>= 16;
+ bitno += 16;
+ }
+ if (!(word & 0xff))
+ {
+ word >>= 8;
+ bitno += 8;
+ }
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ windex++;
+ bitno = windex * BITSET_WORD_BITS;
+
+ word = srcp[1];
+ if (word)
+ {
+ if (!(word & 0xffff))
+ {
+ word >>= 16;
+ bitno += 16;
+ }
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ windex++;
+ bitno = windex * BITSET_WORD_BITS;
+#else
+ for (i = 0; i < LBITSET_ELT_WORDS; i++)
+ {
+ word = srcp[i];
+ if (word)
+ {
+ if (!(word & 0xffff))
+ {
+ word >>= 16;
+ bitno += 16;
+ }
+ if (!(word & 0xff))
+ {
+ word >>= 8;
+ bitno += 8;
+ }
+ for (; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ windex++;
+ bitno = windex * BITSET_WORD_BITS;
+ }
+#endif
+ }
+ else
+ {
+ /* Tread more carefully since we need to check
+ if array overflows. */
+
+ for (i = 0; i < LBITSET_ELT_WORDS; i++)
+ {
+ for (word = srcp[i]; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ windex++;
+ bitno = windex * BITSET_WORD_BITS;
+ }
+ }
+
+ elt = elt->next;
+ if (elt)
+ {
+ windex = elt->index;
+ bitno = windex * BITSET_WORD_BITS;
+ }
+ }
+
+ *next = bitno;
+ return count;
+}
+
+
+static bool
+lbitset_empty_p (bitset dst)
+{
+ lbitset_elt *elt;
+ lbitset_elt *next;
+
+ for (elt = LBITSET_HEAD (dst); elt; elt = next)
+ {
+ next = elt->next;
+ if (!lbitset_elt_zero_p (elt))
+ return 0;
+ /* Weed as we go. */
+ lbitset_elt_unlink (dst, elt);
+ }
+
+ return 1;
+}
+
+
+/* Ensure that any unused bits within the last element are clear. */
+static inline void
+lbitset_unused_clear (bitset dst)
+{
+ unsigned int last_bit;
+ bitset_bindex n_bits;
+
+ n_bits = BITSET_SIZE_ (dst);
+ last_bit = n_bits % LBITSET_ELT_BITS;
+
+ if (last_bit)
+ {
+ lbitset_elt *elt;
+ bitset_windex windex;
+ bitset_word *srcp;
+
+ elt = LBITSET_TAIL (dst);
+ srcp = elt->words;
+ windex = n_bits / BITSET_WORD_BITS;
+
+ srcp[windex - elt->index] &= ((bitset_word) 1 << last_bit) - 1;
+ windex++;
+
+ for (; (windex - elt->index) < LBITSET_ELT_WORDS; windex++)
+ srcp[windex - elt->index] = 0;
+ }
+}
+
+
+static void
+lbitset_ones (bitset dst)
+{
+ bitset_windex i;
+ bitset_windex windex;
+ lbitset_elt *elt;
+
+ /* This is a decidedly unfriendly operation for a linked list
+ bitset! It makes a sparse bitset become dense. An alternative
+ is to have a flag that indicates that the bitset stores the
+ complement of what it indicates. */
+
+ windex = (BITSET_SIZE_ (dst) + BITSET_WORD_BITS - 1) / BITSET_WORD_BITS;
+
+ for (i = 0; i < windex; i += LBITSET_ELT_WORDS)
+ {
+ /* Create new elements if they cannot be found. */
+ elt = lbitset_elt_find (dst, i, LBITSET_CREATE);
+ memset (elt->words, -1, sizeof (elt->words));
+ }
+
+ lbitset_unused_clear (dst);
+}
+
+
+static void
+lbitset_not (bitset dst, bitset src)
+{
+ lbitset_elt *elt;
+ lbitset_elt *selt;
+ lbitset_elt *delt;
+ bitset_windex i;
+ unsigned int j;
+ bitset_windex windex;
+
+ /* This is another unfriendly operation for a linked list
+ bitset! */
+ elt = LBITSET_TAIL (dst);
+
+ windex = (BITSET_SIZE_ (dst) + BITSET_WORD_BITS - 1) / BITSET_WORD_BITS;
+
+ for (i = 0; i < windex; i += LBITSET_ELT_WORDS)
+ {
+ /* Create new elements for dst if they cannot be found
+ or substitute zero elements if src elements not found. */
+ selt = lbitset_elt_find (src, i, LBITSET_SUBST);
+ delt = lbitset_elt_find (dst, i, LBITSET_CREATE);
+
+ for (j = 0; j < LBITSET_ELT_WORDS; j++)
+ delt->words[j] = ~selt->words[j];
+ }
+ lbitset_unused_clear (dst);
+ lbitset_weed (dst);
+ return;
+}
+
+
+/* Is DST == DST | SRC? */
+static bool
+lbitset_subset_p (bitset dst, bitset src)
+{
+ lbitset_elt *selt;
+ lbitset_elt *delt;
+ unsigned int j;
+
+ for (selt = LBITSET_HEAD (src), delt = LBITSET_HEAD (dst);
+ selt || delt; selt = selt->next, delt = delt->next)
+ {
+ if (!selt)
+ selt = &lbitset_zero_elts[0];
+ else if (!delt)
+ delt = &lbitset_zero_elts[0];
+ else if (selt->index != delt->index)
+ {
+ if (selt->index < delt->index)
+ {
+ lbitset_zero_elts[2].next = delt;
+ delt = &lbitset_zero_elts[2];
+ }
+ else
+ {
+ lbitset_zero_elts[1].next = selt;
+ selt = &lbitset_zero_elts[1];
+ }
+ }
+
+ for (j = 0; j < LBITSET_ELT_WORDS; j++)
+ if (delt->words[j] != (selt->words[j] | delt->words[j]))
+ return false;
+ }
+ return true;
+}
+
+
+/* Is DST & SRC == 0? */
+static bool
+lbitset_disjoint_p (bitset dst, bitset src)
+{
+ lbitset_elt *selt;
+ lbitset_elt *delt;
+ unsigned int j;
+
+ for (selt = LBITSET_HEAD (src), delt = LBITSET_HEAD (dst);
+ selt && delt; selt = selt->next, delt = delt->next)
+ {
+ if (selt->index != delt->index)
+ {
+ if (selt->index < delt->index)
+ {
+ lbitset_zero_elts[2].next = delt;
+ delt = &lbitset_zero_elts[2];
+ }
+ else
+ {
+ lbitset_zero_elts[1].next = selt;
+ selt = &lbitset_zero_elts[1];
+ }
+ /* Since the elements are different, there is no
+ intersection of these elements. */
+ continue;
+ }
+
+ for (j = 0; j < LBITSET_ELT_WORDS; j++)
+ if (selt->words[j] & delt->words[j])
+ return false;
+ }
+ return true;
+}
+
+
+static bool
+lbitset_op3_cmp (bitset dst, bitset src1, bitset src2, enum bitset_ops op)
+{
+ lbitset_elt *selt1 = LBITSET_HEAD (src1);
+ lbitset_elt *selt2 = LBITSET_HEAD (src2);
+ lbitset_elt *delt = LBITSET_HEAD (dst);
+ bitset_windex windex1;
+ bitset_windex windex2;
+ bitset_windex windex;
+ lbitset_elt *stmp1;
+ lbitset_elt *stmp2;
+ lbitset_elt *dtmp;
+ bitset_word *srcp1;
+ bitset_word *srcp2;
+ bitset_word *dstp;
+ bool changed = false;
+ unsigned int i;
+
+ LBITSET_HEAD (dst) = 0;
+ dst->b.csize = 0;
+
+ windex1 = (selt1) ? selt1->index : BITSET_WINDEX_MAX;
+ windex2 = (selt2) ? selt2->index : BITSET_WINDEX_MAX;
+
+ while (selt1 || selt2)
+ {
+ /* Figure out whether we need to substitute zero elements for
+ missing links. */
+ if (windex1 == windex2)
+ {
+ windex = windex1;
+ stmp1 = selt1;
+ stmp2 = selt2;
+ selt1 = selt1->next;
+ windex1 = (selt1) ? selt1->index : BITSET_WINDEX_MAX;
+ selt2 = selt2->next;
+ windex2 = (selt2) ? selt2->index : BITSET_WINDEX_MAX;
+ }
+ else if (windex1 < windex2)
+ {
+ windex = windex1;
+ stmp1 = selt1;
+ stmp2 = &lbitset_zero_elts[0];
+ selt1 = selt1->next;
+ windex1 = (selt1) ? selt1->index : BITSET_WINDEX_MAX;
+ }
+ else
+ {
+ windex = windex2;
+ stmp1 = &lbitset_zero_elts[0];
+ stmp2 = selt2;
+ selt2 = selt2->next;
+ windex2 = (selt2) ? selt2->index : BITSET_WINDEX_MAX;
+ }
+
+ /* Find the appropriate element from DST. Begin by discarding
+ elements that we've skipped. */
+ while (delt && delt->index < windex)
+ {
+ changed = true;
+ dtmp = delt;
+ delt = delt->next;
+ lbitset_elt_free (dtmp);
+ }
+ if (delt && delt->index == windex)
+ {
+ dtmp = delt;
+ delt = delt->next;
+ }
+ else
+ dtmp = lbitset_elt_calloc ();
+
+ /* Do the operation, and if any bits are set, link it into the
+ linked list. */
+ srcp1 = stmp1->words;
+ srcp2 = stmp2->words;
+ dstp = dtmp->words;
+ switch (op)
+ {
+ default:
+ abort ();
+
+ case BITSET_OP_OR:
+ for (i = 0; i < LBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ | *srcp2++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+
+ case BITSET_OP_AND:
+ for (i = 0; i < LBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ & *srcp2++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+
+ case BITSET_OP_XOR:
+ for (i = 0; i < LBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ ^ *srcp2++;
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+
+ case BITSET_OP_ANDN:
+ for (i = 0; i < LBITSET_ELT_WORDS; i++, dstp++)
+ {
+ bitset_word tmp = *srcp1++ & ~(*srcp2++);
+
+ if (*dstp != tmp)
+ {
+ changed = true;
+ *dstp = tmp;
+ }
+ }
+ break;
+ }
+
+ if (!lbitset_elt_zero_p (dtmp))
+ {
+ dtmp->index = windex;
+ /* Perhaps this could be optimised... */
+ lbitset_elt_link (dst, dtmp);
+ }
+ else
+ {
+ lbitset_elt_free (dtmp);
+ }
+ }
+
+ /* If we have elements of DST left over, free them all. */
+ if (delt)
+ {
+ changed = true;
+ lbitset_prune (dst, delt);
+ }
+
+ return changed;
+}
+
+
+static bool
+lbitset_and_cmp (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_elt *selt1 = LBITSET_HEAD (src1);
+ lbitset_elt *selt2 = LBITSET_HEAD (src2);
+ bool changed;
+
+ if (!selt2)
+ {
+ lbitset_weed (dst);
+ changed = !LBITSET_HEAD (dst);
+ lbitset_zero (dst);
+ return changed;
+ }
+ else if (!selt1)
+ {
+ lbitset_weed (dst);
+ changed = !LBITSET_HEAD (dst);
+ lbitset_zero (dst);
+ return changed;
+ }
+ return lbitset_op3_cmp (dst, src1, src2, BITSET_OP_AND);
+}
+
+
+static void
+lbitset_and (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_and_cmp (dst, src1, src2);
+}
+
+
+static bool
+lbitset_andn_cmp (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_elt *selt1 = LBITSET_HEAD (src1);
+ lbitset_elt *selt2 = LBITSET_HEAD (src2);
+ bool changed;
+
+ if (!selt2)
+ {
+ return lbitset_copy_cmp (dst, src1);
+ }
+ else if (!selt1)
+ {
+ lbitset_weed (dst);
+ changed = !LBITSET_HEAD (dst);
+ lbitset_zero (dst);
+ return changed;
+ }
+ return lbitset_op3_cmp (dst, src1, src2, BITSET_OP_ANDN);
+}
+
+
+static void
+lbitset_andn (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_andn_cmp (dst, src1, src2);
+}
+
+
+static bool
+lbitset_or_cmp (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_elt *selt1 = LBITSET_HEAD (src1);
+ lbitset_elt *selt2 = LBITSET_HEAD (src2);
+
+ if (!selt2)
+ {
+ return lbitset_copy_cmp (dst, src1);
+ }
+ else if (!selt1)
+ {
+ return lbitset_copy_cmp (dst, src2);
+ }
+ return lbitset_op3_cmp (dst, src1, src2, BITSET_OP_OR);
+}
+
+
+static void
+lbitset_or (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_or_cmp (dst, src1, src2);
+}
+
+
+static bool
+lbitset_xor_cmp (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_elt *selt1 = LBITSET_HEAD (src1);
+ lbitset_elt *selt2 = LBITSET_HEAD (src2);
+
+ if (!selt2)
+ {
+ return lbitset_copy_cmp (dst, src1);
+ }
+ else if (!selt1)
+ {
+ return lbitset_copy_cmp (dst, src2);
+ }
+ return lbitset_op3_cmp (dst, src1, src2, BITSET_OP_XOR);
+}
+
+
+static void
+lbitset_xor (bitset dst, bitset src1, bitset src2)
+{
+ lbitset_xor_cmp (dst, src1, src2);
+}
+
+
+
+/* Vector of operations for linked-list bitsets. */
+struct bitset_vtable lbitset_vtable = {
+ lbitset_set,
+ lbitset_reset,
+ bitset_toggle_,
+ lbitset_test,
+ lbitset_resize,
+ bitset_size_,
+ bitset_count_,
+ lbitset_empty_p,
+ lbitset_ones,
+ lbitset_zero,
+ lbitset_copy,
+ lbitset_disjoint_p,
+ lbitset_equal_p,
+ lbitset_not,
+ lbitset_subset_p,
+ lbitset_and,
+ lbitset_and_cmp,
+ lbitset_andn,
+ lbitset_andn_cmp,
+ lbitset_or,
+ lbitset_or_cmp,
+ lbitset_xor,
+ lbitset_xor_cmp,
+ bitset_and_or_,
+ bitset_and_or_cmp_,
+ bitset_andn_or_,
+ bitset_andn_or_cmp_,
+ bitset_or_and_,
+ bitset_or_and_cmp_,
+ lbitset_list,
+ lbitset_list_reverse,
+ lbitset_free,
+ BITSET_LIST
+};
+
+
+/* Return size of initial structure. */
+size_t
+lbitset_bytes (bitset_bindex n_bits ATTRIBUTE_UNUSED)
+{
+ return sizeof (struct lbitset_struct);
+}
+
+
+/* Initialize a bitset. */
+bitset
+lbitset_init (bitset bset, bitset_bindex n_bits ATTRIBUTE_UNUSED)
+{
+ BITSET_NBITS_ (bset) = n_bits;
+ bset->b.vtable = &lbitset_vtable;
+ return bset;
+}
+
+
+void
+lbitset_release_memory (void)
+{
+ lbitset_free_list = 0;
+ if (lbitset_obstack_init)
+ {
+ lbitset_obstack_init = false;
+ obstack_free (&lbitset_obstack, NULL);
+ }
+}
+
+
+/* Function to be called from debugger to debug lbitset. */
+void
+debug_lbitset (bitset bset)
+{
+ lbitset_elt *elt;
+ unsigned int i;
+
+ if (!bset)
+ return;
+
+ for (elt = LBITSET_HEAD (bset); elt; elt = elt->next)
+ {
+ fprintf (stderr, "Elt %lu\n", (unsigned long int) elt->index);
+ for (i = 0; i < LBITSET_ELT_WORDS; i++)
+ {
+ unsigned int j;
+ bitset_word word;
+
+ word = elt->words[i];
+
+ fprintf (stderr, " Word %u:", i);
+ for (j = 0; j < LBITSET_WORD_BITS; j++)
+ if ((word & ((bitset_word) 1 << j)))
+ fprintf (stderr, " %u", j);
+ fprintf (stderr, "\n");
+ }
+ }
+}
diff --git a/lib/lbitset.h b/lib/lbitset.h
new file mode 100644
index 0000000..aaad834
--- /dev/null
+++ b/lib/lbitset.h
@@ -0,0 +1,30 @@
+/* Functions to support lbitsets.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _LBITSET_H
+#define _LBITSET_H
+
+#include "bitset.h"
+
+extern size_t lbitset_bytes (bitset_bindex);
+
+extern bitset lbitset_init (bitset, bitset_bindex);
+
+extern void lbitset_release_memory (void);
+
+#endif
diff --git a/lib/libiberty.h b/lib/libiberty.h
new file mode 100644
index 0000000..e8629e4
--- /dev/null
+++ b/lib/libiberty.h
@@ -0,0 +1,36 @@
+/* Fake libiberty.h for Bison.
+ Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+
+/* Bison depends on libiberty's implementation of bitsets, which
+ requires a `libiberty.h' file. This file provides the minimum
+ services. */
+
+#ifndef BISON_LIBIBERTY_H_
+# define BISON_LIBIBERTY_H_ 1
+
+# ifndef __attribute__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
+# define __attribute__(x)
+# endif
+# endif
+
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+
+# include "xalloc.h"
+
+#endif /* ! BISON_LIBIBERTY_H_ */
diff --git a/lib/main.c b/lib/main.c
new file mode 100644
index 0000000..98dedf9
--- /dev/null
+++ b/lib/main.c
@@ -0,0 +1,38 @@
+/* Yacc library main function.
+
+ Copyright (C) 2002 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+
+#if HAVE_LOCALE_H
+# include <locale.h>
+#endif
+#if ! HAVE_SETLOCALE
+# define setlocale(Category, Locale)
+#endif
+
+int yyparse (void);
+
+int
+main (void)
+{
+ setlocale (LC_ALL, "");
+ return yyparse ();
+}
diff --git a/lib/malloc.c b/lib/malloc.c
new file mode 100644
index 0000000..58fa611
--- /dev/null
+++ b/lib/malloc.c
@@ -0,0 +1,36 @@
+/* malloc() function that is glibc compatible.
+ Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* written by Jim Meyering */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef malloc
+
+#include <stdlib.h>
+
+/* Allocate an N-byte block of memory from the heap.
+ If N is zero, allocate a 1-byte block. */
+
+void *
+rpl_malloc (size_t n)
+{
+ if (n == 0)
+ n = 1;
+ return malloc (n);
+}
diff --git a/lib/mbswidth.c b/lib/mbswidth.c
new file mode 100644
index 0000000..c9e78d6
--- /dev/null
+++ b/lib/mbswidth.c
@@ -0,0 +1,221 @@
+/* Determine the number of screen columns needed for a string.
+ Copyright (C) 2000-2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Bruno Haible <haible@clisp.cons.org>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* Specification. */
+#include "mbswidth.h"
+
+/* Get MB_CUR_MAX. */
+#include <stdlib.h>
+
+#include <string.h>
+
+/* Get isprint(). */
+#include <ctype.h>
+
+/* Get mbstate_t, mbrtowc(), mbsinit(), wcwidth(). */
+#if HAVE_WCHAR_H
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
+ <wchar.h>. */
+# include <stdio.h>
+# include <time.h>
+# include <wchar.h>
+#endif
+
+/* Get iswprint(), iswcntrl(). */
+#if HAVE_WCTYPE_H
+# include <wctype.h>
+#endif
+#if !defined iswprint && !HAVE_ISWPRINT
+# define iswprint(wc) 1
+#endif
+#if !defined iswcntrl && !HAVE_ISWCNTRL
+# define iswcntrl(wc) 0
+#endif
+
+#ifndef mbsinit
+# if !HAVE_MBSINIT
+# define mbsinit(ps) 1
+# endif
+#endif
+
+#ifndef HAVE_DECL_WCWIDTH
+"this configure-time declaration test was not run"
+#endif
+#if !HAVE_DECL_WCWIDTH
+int wcwidth ();
+#endif
+
+#ifndef wcwidth
+# if !HAVE_WCWIDTH
+/* wcwidth doesn't exist, so assume all printable characters have
+ width 1. */
+# define wcwidth(wc) ((wc) == 0 ? 0 : iswprint (wc) ? 1 : -1)
+# endif
+#endif
+
+/* Get ISPRINT. */
+#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
+# define IN_CTYPE_DOMAIN(c) 1
+#else
+# define IN_CTYPE_DOMAIN(c) isascii(c)
+#endif
+/* Undefine to protect against the definition in wctype.h of Solaris 2.6. */
+#undef ISPRINT
+#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
+#undef ISCNTRL
+#define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c))
+
+/* Returns the number of columns needed to represent the multibyte
+ character string pointed to by STRING. If a non-printable character
+ occurs, and MBSW_REJECT_UNPRINTABLE is specified, -1 is returned.
+ With flags = MBSW_REJECT_INVALID | MBSW_REJECT_UNPRINTABLE, this is
+ the multibyte analogue of the wcswidth function.
+ If STRING is not of length < INT_MAX / 2, integer overflow can occur. */
+int
+mbswidth (const char *string, int flags)
+{
+ return mbsnwidth (string, strlen (string), flags);
+}
+
+/* Returns the number of columns needed to represent the multibyte
+ character string pointed to by STRING of length NBYTES. If a
+ non-printable character occurs, and MBSW_REJECT_UNPRINTABLE is
+ specified, -1 is returned.
+ If NBYTES is not < INT_MAX / 2, integer overflow can occur. */
+int
+mbsnwidth (const char *string, size_t nbytes, int flags)
+{
+ const char *p = string;
+ const char *plimit = p + nbytes;
+ int width;
+
+ width = 0;
+#if HAVE_MBRTOWC
+ if (MB_CUR_MAX > 1)
+ {
+ while (p < plimit)
+ switch (*p)
+ {
+ case ' ': case '!': case '"': case '#': case '%':
+ case '&': case '\'': case '(': case ')': case '*':
+ case '+': case ',': case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ case ':': case ';': case '<': case '=': case '>':
+ case '?':
+ case 'A': case 'B': case 'C': case 'D': case 'E':
+ case 'F': case 'G': case 'H': case 'I': case 'J':
+ case 'K': case 'L': case 'M': case 'N': case 'O':
+ case 'P': case 'Q': case 'R': case 'S': case 'T':
+ case 'U': case 'V': case 'W': case 'X': case 'Y':
+ case 'Z':
+ case '[': case '\\': case ']': case '^': case '_':
+ case 'a': case 'b': case 'c': case 'd': case 'e':
+ case 'f': case 'g': case 'h': case 'i': case 'j':
+ case 'k': case 'l': case 'm': case 'n': case 'o':
+ case 'p': case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x': case 'y':
+ case 'z': case '{': case '|': case '}': case '~':
+ /* These characters are printable ASCII characters. */
+ p++;
+ width++;
+ break;
+ default:
+ /* If we have a multibyte sequence, scan it up to its end. */
+ {
+ mbstate_t mbstate;
+ memset (&mbstate, 0, sizeof mbstate);
+ do
+ {
+ wchar_t wc;
+ size_t bytes;
+ int w;
+
+ bytes = mbrtowc (&wc, p, plimit - p, &mbstate);
+
+ if (bytes == (size_t) -1)
+ /* An invalid multibyte sequence was encountered. */
+ {
+ if (!(flags & MBSW_REJECT_INVALID))
+ {
+ p++;
+ width++;
+ break;
+ }
+ else
+ return -1;
+ }
+
+ if (bytes == (size_t) -2)
+ /* An incomplete multibyte character at the end. */
+ {
+ if (!(flags & MBSW_REJECT_INVALID))
+ {
+ p = plimit;
+ width++;
+ break;
+ }
+ else
+ return -1;
+ }
+
+ if (bytes == 0)
+ /* A null wide character was encountered. */
+ bytes = 1;
+
+ w = wcwidth (wc);
+ if (w >= 0)
+ /* A printable multibyte character. */
+ width += w;
+ else
+ /* An unprintable multibyte character. */
+ if (!(flags & MBSW_REJECT_UNPRINTABLE))
+ width += (iswcntrl (wc) ? 0 : 1);
+ else
+ return -1;
+
+ p += bytes;
+ }
+ while (! mbsinit (&mbstate));
+ }
+ break;
+ }
+ return width;
+ }
+#endif
+
+ while (p < plimit)
+ {
+ unsigned char c = (unsigned char) *p++;
+
+ if (ISPRINT (c))
+ width++;
+ else if (!(flags & MBSW_REJECT_UNPRINTABLE))
+ width += (ISCNTRL (c) ? 0 : 1);
+ else
+ return -1;
+ }
+ return width;
+}
diff --git a/lib/mbswidth.h b/lib/mbswidth.h
new file mode 100644
index 0000000..1935e0a
--- /dev/null
+++ b/lib/mbswidth.h
@@ -0,0 +1,61 @@
+/* Determine the number of screen columns needed for a string.
+ Copyright (C) 2000-2004 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <stddef.h>
+
+/* Avoid a clash of our mbswidth() with a function of the same name defined
+ in UnixWare 7.1.1 <wchar.h>. We need this #include before the #define
+ below.
+ However, we don't want to #include <wchar.h> on all platforms because
+ - Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ - BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
+ <wchar.h>. */
+#if HAVE_DECL_MBSWIDTH_IN_WCHAR_H
+# include <wchar.h>
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Optional flags to influence mbswidth/mbsnwidth behavior. */
+
+/* If this bit is set, return -1 upon finding an invalid or incomplete
+ character. Otherwise, assume invalid characters have width 1. */
+#define MBSW_REJECT_INVALID 1
+
+/* If this bit is set, return -1 upon finding a non-printable character.
+ Otherwise, assume unprintable characters have width 0 if they are
+ control characters and 1 otherwise. */
+#define MBSW_REJECT_UNPRINTABLE 2
+
+
+/* Returns the number of screen columns needed for STRING. */
+#define mbswidth gnu_mbswidth /* avoid clash with UnixWare 7.1.1 function */
+extern int mbswidth (const char *string, int flags);
+
+/* Returns the number of screen columns needed for the NBYTES bytes
+ starting at BUF. */
+extern int mbsnwidth (const char *buf, size_t nbytes, int flags);
+
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/lib/obstack.c b/lib/obstack.c
new file mode 100644
index 0000000..6df0611
--- /dev/null
+++ b/lib/obstack.c
@@ -0,0 +1,440 @@
+/* obstack.c - subroutines used implicitly by object stack macros
+
+ Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation,
+ Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef _LIBC
+# include <obstack.h>
+# include <shlib-compat.h>
+#else
+# include "obstack.h"
+#endif
+
+/* NOTE BEFORE MODIFYING THIS FILE: This version number must be
+ incremented whenever callers compiled using an old obstack.h can no
+ longer properly call the functions in this obstack.c. */
+#define OBSTACK_INTERFACE_VERSION 1
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+ actually compiling the library itself, and the installed library
+ supports the same library interface we do. This code is part of the GNU
+ C Library, but also included in many other GNU distributions. Compiling
+ and linking in this code is a waste when using the GNU C library
+ (especially if it is a shared library). Rather than having every GNU
+ program understand `configure --with-gnu-libc' and omit the object
+ files, it is simpler to just do this in the source for each such file. */
+
+#include <stdio.h> /* Random thing to get __GNU_LIBRARY__. */
+#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1
+# include <gnu-versions.h>
+# if _GNU_OBSTACK_INTERFACE_VERSION == OBSTACK_INTERFACE_VERSION
+# define ELIDE_CODE
+# endif
+#endif
+
+#include <stddef.h>
+
+#ifndef ELIDE_CODE
+
+
+# if HAVE_INTTYPES_H
+# include <inttypes.h>
+# endif
+# if HAVE_STDINT_H || defined _LIBC
+# include <stdint.h>
+# endif
+
+/* Determine default alignment. */
+union fooround
+{
+ uintmax_t i;
+ long double d;
+ void *p;
+};
+struct fooalign
+{
+ char c;
+ union fooround u;
+};
+/* If malloc were really smart, it would round addresses to DEFAULT_ALIGNMENT.
+ But in fact it might be less smart and round addresses to as much as
+ DEFAULT_ROUNDING. So we prepare for it to do that. */
+enum
+ {
+ DEFAULT_ALIGNMENT = offsetof (struct fooalign, u),
+ DEFAULT_ROUNDING = sizeof (union fooround)
+ };
+
+/* When we copy a long block of data, this is the unit to do it with.
+ On some machines, copying successive ints does not work;
+ in such a case, redefine COPYING_UNIT to `long' (if that works)
+ or `char' as a last resort. */
+# ifndef COPYING_UNIT
+# define COPYING_UNIT int
+# endif
+
+
+/* The functions allocating more room by calling `obstack_chunk_alloc'
+ jump to the handler pointed to by `obstack_alloc_failed_handler'.
+ This can be set to a user defined function which should either
+ abort gracefully or use longjump - but shouldn't return. This
+ variable by default points to the internal function
+ `print_and_abort'. */
+static void print_and_abort (void);
+void (*obstack_alloc_failed_handler) (void) = print_and_abort;
+
+/* Exit value used when `print_and_abort' is used. */
+# include <stdlib.h>
+# ifdef _LIBC
+int obstack_exit_failure = EXIT_FAILURE;
+# else
+# include "exitfail.h"
+# define obstack_exit_failure exit_failure
+# endif
+
+# ifdef _LIBC
+# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)
+/* A looong time ago (before 1994, anyway; we're not sure) this global variable
+ was used by non-GNU-C macros to avoid multiple evaluation. The GNU C
+ library still exports it because somebody might use it. */
+struct obstack *_obstack_compat;
+compat_symbol (libc, _obstack_compat, _obstack, GLIBC_2_0);
+# endif
+# endif
+
+/* Define a macro that either calls functions with the traditional malloc/free
+ calling interface, or calls functions with the mmalloc/mfree interface
+ (that adds an extra first argument), based on the state of use_extra_arg.
+ For free, do not use ?:, since some compilers, like the MIPS compilers,
+ do not allow (expr) ? void : void. */
+
+# define CALL_CHUNKFUN(h, size) \
+ (((h) -> use_extra_arg) \
+ ? (*(h)->chunkfun) ((h)->extra_arg, (size)) \
+ : (*(struct _obstack_chunk *(*) (long)) (h)->chunkfun) ((size)))
+
+# define CALL_FREEFUN(h, old_chunk) \
+ do { \
+ if ((h) -> use_extra_arg) \
+ (*(h)->freefun) ((h)->extra_arg, (old_chunk)); \
+ else \
+ (*(void (*) (void *)) (h)->freefun) ((old_chunk)); \
+ } while (0)
+
+
+/* Initialize an obstack H for use. Specify chunk size SIZE (0 means default).
+ Objects start on multiples of ALIGNMENT (0 means use default).
+ CHUNKFUN is the function to use to allocate chunks,
+ and FREEFUN the function to free them.
+
+ Return nonzero if successful, calls obstack_alloc_failed_handler if
+ allocation fails. */
+
+int
+_obstack_begin (struct obstack *h,
+ int size, int alignment,
+ void *(*chunkfun) (long),
+ void (*freefun) (void *))
+{
+ register struct _obstack_chunk *chunk; /* points to new chunk */
+
+ if (alignment == 0)
+ alignment = DEFAULT_ALIGNMENT;
+ if (size == 0)
+ /* Default size is what GNU malloc can fit in a 4096-byte block. */
+ {
+ /* 12 is sizeof (mhead) and 4 is EXTRA from GNU malloc.
+ Use the values for range checking, because if range checking is off,
+ the extra bytes won't be missed terribly, but if range checking is on
+ and we used a larger request, a whole extra 4096 bytes would be
+ allocated.
+
+ These number are irrelevant to the new GNU malloc. I suspect it is
+ less sensitive to the size of the request. */
+ int extra = ((((12 + DEFAULT_ROUNDING - 1) & ~(DEFAULT_ROUNDING - 1))
+ + 4 + DEFAULT_ROUNDING - 1)
+ & ~(DEFAULT_ROUNDING - 1));
+ size = 4096 - extra;
+ }
+
+ h->chunkfun = (struct _obstack_chunk * (*)(void *, long)) chunkfun;
+ h->freefun = (void (*) (void *, struct _obstack_chunk *)) freefun;
+ h->chunk_size = size;
+ h->alignment_mask = alignment - 1;
+ h->use_extra_arg = 0;
+
+ chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size);
+ if (!chunk)
+ (*obstack_alloc_failed_handler) ();
+ h->next_free = h->object_base = __PTR_ALIGN ((char *) chunk, chunk->contents,
+ alignment - 1);
+ h->chunk_limit = chunk->limit
+ = (char *) chunk + h->chunk_size;
+ chunk->prev = 0;
+ /* The initial chunk now contains no empty object. */
+ h->maybe_empty_object = 0;
+ h->alloc_failed = 0;
+ return 1;
+}
+
+int
+_obstack_begin_1 (struct obstack *h, int size, int alignment,
+ void *(*chunkfun) (void *, long),
+ void (*freefun) (void *, void *),
+ void *arg)
+{
+ register struct _obstack_chunk *chunk; /* points to new chunk */
+
+ if (alignment == 0)
+ alignment = DEFAULT_ALIGNMENT;
+ if (size == 0)
+ /* Default size is what GNU malloc can fit in a 4096-byte block. */
+ {
+ /* 12 is sizeof (mhead) and 4 is EXTRA from GNU malloc.
+ Use the values for range checking, because if range checking is off,
+ the extra bytes won't be missed terribly, but if range checking is on
+ and we used a larger request, a whole extra 4096 bytes would be
+ allocated.
+
+ These number are irrelevant to the new GNU malloc. I suspect it is
+ less sensitive to the size of the request. */
+ int extra = ((((12 + DEFAULT_ROUNDING - 1) & ~(DEFAULT_ROUNDING - 1))
+ + 4 + DEFAULT_ROUNDING - 1)
+ & ~(DEFAULT_ROUNDING - 1));
+ size = 4096 - extra;
+ }
+
+ h->chunkfun = (struct _obstack_chunk * (*)(void *,long)) chunkfun;
+ h->freefun = (void (*) (void *, struct _obstack_chunk *)) freefun;
+ h->chunk_size = size;
+ h->alignment_mask = alignment - 1;
+ h->extra_arg = arg;
+ h->use_extra_arg = 1;
+
+ chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size);
+ if (!chunk)
+ (*obstack_alloc_failed_handler) ();
+ h->next_free = h->object_base = __PTR_ALIGN ((char *) chunk, chunk->contents,
+ alignment - 1);
+ h->chunk_limit = chunk->limit
+ = (char *) chunk + h->chunk_size;
+ chunk->prev = 0;
+ /* The initial chunk now contains no empty object. */
+ h->maybe_empty_object = 0;
+ h->alloc_failed = 0;
+ return 1;
+}
+
+/* Allocate a new current chunk for the obstack *H
+ on the assumption that LENGTH bytes need to be added
+ to the current object, or a new object of length LENGTH allocated.
+ Copies any partial object from the end of the old chunk
+ to the beginning of the new one. */
+
+void
+_obstack_newchunk (struct obstack *h, int length)
+{
+ register struct _obstack_chunk *old_chunk = h->chunk;
+ register struct _obstack_chunk *new_chunk;
+ register long new_size;
+ register long obj_size = h->next_free - h->object_base;
+ register long i;
+ long already;
+ char *object_base;
+
+ /* Compute size for new chunk. */
+ new_size = (obj_size + length) + (obj_size >> 3) + h->alignment_mask + 100;
+ if (new_size < h->chunk_size)
+ new_size = h->chunk_size;
+
+ /* Allocate and initialize the new chunk. */
+ new_chunk = CALL_CHUNKFUN (h, new_size);
+ if (!new_chunk)
+ (*obstack_alloc_failed_handler) ();
+ h->chunk = new_chunk;
+ new_chunk->prev = old_chunk;
+ new_chunk->limit = h->chunk_limit = (char *) new_chunk + new_size;
+
+ /* Compute an aligned object_base in the new chunk */
+ object_base =
+ __PTR_ALIGN ((char *) new_chunk, new_chunk->contents, h->alignment_mask);
+
+ /* Move the existing object to the new chunk.
+ Word at a time is fast and is safe if the object
+ is sufficiently aligned. */
+ if (h->alignment_mask + 1 >= DEFAULT_ALIGNMENT)
+ {
+ for (i = obj_size / sizeof (COPYING_UNIT) - 1;
+ i >= 0; i--)
+ ((COPYING_UNIT *)object_base)[i]
+ = ((COPYING_UNIT *)h->object_base)[i];
+ /* We used to copy the odd few remaining bytes as one extra COPYING_UNIT,
+ but that can cross a page boundary on a machine
+ which does not do strict alignment for COPYING_UNITS. */
+ already = obj_size / sizeof (COPYING_UNIT) * sizeof (COPYING_UNIT);
+ }
+ else
+ already = 0;
+ /* Copy remaining bytes one by one. */
+ for (i = already; i < obj_size; i++)
+ object_base[i] = h->object_base[i];
+
+ /* If the object just copied was the only data in OLD_CHUNK,
+ free that chunk and remove it from the chain.
+ But not if that chunk might contain an empty object. */
+ if (! h->maybe_empty_object
+ && (h->object_base
+ == __PTR_ALIGN ((char *) old_chunk, old_chunk->contents,
+ h->alignment_mask)))
+ {
+ new_chunk->prev = old_chunk->prev;
+ CALL_FREEFUN (h, old_chunk);
+ }
+
+ h->object_base = object_base;
+ h->next_free = h->object_base + obj_size;
+ /* The new chunk certainly contains no empty object yet. */
+ h->maybe_empty_object = 0;
+}
+# ifdef _LIBC
+libc_hidden_def (_obstack_newchunk)
+# endif
+
+/* Return nonzero if object OBJ has been allocated from obstack H.
+ This is here for debugging.
+ If you use it in a program, you are probably losing. */
+
+/* Suppress -Wmissing-prototypes warning. We don't want to declare this in
+ obstack.h because it is just for debugging. */
+int _obstack_allocated_p (struct obstack *h, void *obj);
+
+int
+_obstack_allocated_p (struct obstack *h, void *obj)
+{
+ register struct _obstack_chunk *lp; /* below addr of any objects in this chunk */
+ register struct _obstack_chunk *plp; /* point to previous chunk if any */
+
+ lp = (h)->chunk;
+ /* We use >= rather than > since the object cannot be exactly at
+ the beginning of the chunk but might be an empty object exactly
+ at the end of an adjacent chunk. */
+ while (lp != 0 && ((void *) lp >= obj || (void *) (lp)->limit < obj))
+ {
+ plp = lp->prev;
+ lp = plp;
+ }
+ return lp != 0;
+}
+
+/* Free objects in obstack H, including OBJ and everything allocate
+ more recently than OBJ. If OBJ is zero, free everything in H. */
+
+# undef obstack_free
+
+void
+obstack_free (struct obstack *h, void *obj)
+{
+ register struct _obstack_chunk *lp; /* below addr of any objects in this chunk */
+ register struct _obstack_chunk *plp; /* point to previous chunk if any */
+
+ lp = h->chunk;
+ /* We use >= because there cannot be an object at the beginning of a chunk.
+ But there can be an empty object at that address
+ at the end of another chunk. */
+ while (lp != 0 && ((void *) lp >= obj || (void *) (lp)->limit < obj))
+ {
+ plp = lp->prev;
+ CALL_FREEFUN (h, lp);
+ lp = plp;
+ /* If we switch chunks, we can't tell whether the new current
+ chunk contains an empty object, so assume that it may. */
+ h->maybe_empty_object = 1;
+ }
+ if (lp)
+ {
+ h->object_base = h->next_free = (char *) (obj);
+ h->chunk_limit = lp->limit;
+ h->chunk = lp;
+ }
+ else if (obj != 0)
+ /* obj is not in any of the chunks! */
+ abort ();
+}
+
+# ifdef _LIBC
+/* Older versions of libc used a function _obstack_free intended to be
+ called by non-GCC compilers. */
+strong_alias (obstack_free, _obstack_free)
+# endif
+
+int
+_obstack_memory_used (struct obstack *h)
+{
+ register struct _obstack_chunk* lp;
+ register int nbytes = 0;
+
+ for (lp = h->chunk; lp != 0; lp = lp->prev)
+ {
+ nbytes += lp->limit - (char *) lp;
+ }
+ return nbytes;
+}
+
+/* Define the error handler. */
+# ifdef _LIBC
+# include <libintl.h>
+# else
+# include "gettext.h"
+# endif
+# ifndef _
+# define _(msgid) gettext (msgid)
+# endif
+
+# ifdef _LIBC
+# include <libio/iolibio.h>
+# endif
+
+# ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later. */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
+# define __attribute__(Spec) /* empty */
+# endif
+# endif
+
+static void
+__attribute__ ((noreturn))
+print_and_abort (void)
+{
+ /* Don't change any of these strings. Yes, it would be possible to add
+ the newline to the string and use fputs or so. But this must not
+ happen because the "memory exhausted" message appears in other places
+ like this and the translation should be reused instead of creating
+ a very similar string which requires a separate translation. */
+# ifdef _LIBC
+ (void) __fxprintf (NULL, "%s\n", _("memory exhausted"));
+# else
+ fprintf (stderr, "%s\n", _("memory exhausted"));
+# endif
+ exit (obstack_exit_failure);
+}
+
+#endif /* !ELIDE_CODE */
diff --git a/lib/obstack.h b/lib/obstack.h
new file mode 100644
index 0000000..95dd438
--- /dev/null
+++ b/lib/obstack.h
@@ -0,0 +1,508 @@
+/* obstack.h - object stack macros
+ Copyright (C) 1988-1994,1996-1999,2003,2004,2005
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Summary:
+
+All the apparent functions defined here are macros. The idea
+is that you would use these pre-tested macros to solve a
+very specific set of problems, and they would run fast.
+Caution: no side-effects in arguments please!! They may be
+evaluated MANY times!!
+
+These macros operate a stack of objects. Each object starts life
+small, and may grow to maturity. (Consider building a word syllable
+by syllable.) An object can move while it is growing. Once it has
+been "finished" it never changes address again. So the "top of the
+stack" is typically an immature growing object, while the rest of the
+stack is of mature, fixed size and fixed address objects.
+
+These routines grab large chunks of memory, using a function you
+supply, called `obstack_chunk_alloc'. On occasion, they free chunks,
+by calling `obstack_chunk_free'. You must define them and declare
+them before using any obstack macros.
+
+Each independent stack is represented by a `struct obstack'.
+Each of the obstack macros expects a pointer to such a structure
+as the first argument.
+
+One motivation for this package is the problem of growing char strings
+in symbol tables. Unless you are "fascist pig with a read-only mind"
+--Gosper's immortal quote from HAKMEM item 154, out of context--you
+would not like to put any arbitrary upper limit on the length of your
+symbols.
+
+In practice this often means you will build many short symbols and a
+few long symbols. At the time you are reading a symbol you don't know
+how long it is. One traditional method is to read a symbol into a
+buffer, realloc()ating the buffer every time you try to read a symbol
+that is longer than the buffer. This is beaut, but you still will
+want to copy the symbol from the buffer to a more permanent
+symbol-table entry say about half the time.
+
+With obstacks, you can work differently. Use one obstack for all symbol
+names. As you read a symbol, grow the name in the obstack gradually.
+When the name is complete, finalize it. Then, if the symbol exists already,
+free the newly read name.
+
+The way we do this is to take a large chunk, allocating memory from
+low addresses. When you want to build a symbol in the chunk you just
+add chars above the current "high water mark" in the chunk. When you
+have finished adding chars, because you got to the end of the symbol,
+you know how long the chars are, and you can create a new object.
+Mostly the chars will not burst over the highest address of the chunk,
+because you would typically expect a chunk to be (say) 100 times as
+long as an average object.
+
+In case that isn't clear, when we have enough chars to make up
+the object, THEY ARE ALREADY CONTIGUOUS IN THE CHUNK (guaranteed)
+so we just point to it where it lies. No moving of chars is
+needed and this is the second win: potentially long strings need
+never be explicitly shuffled. Once an object is formed, it does not
+change its address during its lifetime.
+
+When the chars burst over a chunk boundary, we allocate a larger
+chunk, and then copy the partly formed object from the end of the old
+chunk to the beginning of the new larger chunk. We then carry on
+accreting characters to the end of the object as we normally would.
+
+A special macro is provided to add a single char at a time to a
+growing object. This allows the use of register variables, which
+break the ordinary 'growth' macro.
+
+Summary:
+ We allocate large chunks.
+ We carve out one object at a time from the current chunk.
+ Once carved, an object never moves.
+ We are free to append data of any size to the currently
+ growing object.
+ Exactly one object is growing in an obstack at any one time.
+ You can run one obstack per control block.
+ You may have as many control blocks as you dare.
+ Because of the way we do it, you can `unwind' an obstack
+ back to a previous state. (You may remove objects much
+ as you would with a stack.)
+*/
+
+
+/* Don't do the contents of this file more than once. */
+
+#ifndef _OBSTACK_H
+#define _OBSTACK_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* We need the type of a pointer subtraction. If __PTRDIFF_TYPE__ is
+ defined, as with GNU C, use that; that way we don't pollute the
+ namespace with <stddef.h>'s symbols. Otherwise, include <stddef.h>
+ and use ptrdiff_t. */
+
+#ifdef __PTRDIFF_TYPE__
+# define PTR_INT_TYPE __PTRDIFF_TYPE__
+#else
+# include <stddef.h>
+# define PTR_INT_TYPE ptrdiff_t
+#endif
+
+/* If B is the base of an object addressed by P, return the result of
+ aligning P to the next multiple of A + 1. B and P must be of type
+ char *. A + 1 must be a power of 2. */
+
+#define __BPTR_ALIGN(B, P, A) ((B) + (((P) - (B) + (A)) & ~(A)))
+
+/* Similiar to _BPTR_ALIGN (B, P, A), except optimize the common case
+ where pointers can be converted to integers, aligned as integers,
+ and converted back again. If PTR_INT_TYPE is narrower than a
+ pointer (e.g., the AS/400), play it safe and compute the alignment
+ relative to B. Otherwise, use the faster strategy of computing the
+ alignment relative to 0. */
+
+#define __PTR_ALIGN(B, P, A) \
+ __BPTR_ALIGN (sizeof (PTR_INT_TYPE) < sizeof (void *) ? (B) : (char *) 0, \
+ P, A)
+
+#include <string.h>
+
+struct _obstack_chunk /* Lives at front of each chunk. */
+{
+ char *limit; /* 1 past end of this chunk */
+ struct _obstack_chunk *prev; /* address of prior chunk or NULL */
+ char contents[4]; /* objects begin here */
+};
+
+struct obstack /* control current object in current chunk */
+{
+ long chunk_size; /* preferred size to allocate chunks in */
+ struct _obstack_chunk *chunk; /* address of current struct obstack_chunk */
+ char *object_base; /* address of object we are building */
+ char *next_free; /* where to add next char to current object */
+ char *chunk_limit; /* address of char after current chunk */
+ union
+ {
+ PTR_INT_TYPE tempint;
+ void *tempptr;
+ } temp; /* Temporary for some macros. */
+ int alignment_mask; /* Mask of alignment for each object. */
+ /* These prototypes vary based on `use_extra_arg', and we use
+ casts to the prototypeless function type in all assignments,
+ but having prototypes here quiets -Wstrict-prototypes. */
+ struct _obstack_chunk *(*chunkfun) (void *, long);
+ void (*freefun) (void *, struct _obstack_chunk *);
+ void *extra_arg; /* first arg for chunk alloc/dealloc funcs */
+ unsigned use_extra_arg:1; /* chunk alloc/dealloc funcs take extra arg */
+ unsigned maybe_empty_object:1;/* There is a possibility that the current
+ chunk contains a zero-length object. This
+ prevents freeing the chunk if we allocate
+ a bigger chunk to replace it. */
+ unsigned alloc_failed:1; /* No longer used, as we now call the failed
+ handler on error, but retained for binary
+ compatibility. */
+};
+
+/* Declare the external functions we use; they are in obstack.c. */
+
+extern void _obstack_newchunk (struct obstack *, int);
+extern int _obstack_begin (struct obstack *, int, int,
+ void *(*) (long), void (*) (void *));
+extern int _obstack_begin_1 (struct obstack *, int, int,
+ void *(*) (void *, long),
+ void (*) (void *, void *), void *);
+extern int _obstack_memory_used (struct obstack *);
+
+void obstack_free (struct obstack *obstack, void *block);
+
+
+/* Error handler called when `obstack_chunk_alloc' failed to allocate
+ more memory. This can be set to a user defined function which
+ should either abort gracefully or use longjump - but shouldn't
+ return. The default action is to print a message and abort. */
+extern void (*obstack_alloc_failed_handler) (void);
+
+/* Exit value used when `print_and_abort' is used. */
+extern int obstack_exit_failure;
+
+/* Pointer to beginning of object being allocated or to be allocated next.
+ Note that this might not be the final address of the object
+ because a new chunk might be needed to hold the final size. */
+
+#define obstack_base(h) ((void *) (h)->object_base)
+
+/* Size for allocating ordinary chunks. */
+
+#define obstack_chunk_size(h) ((h)->chunk_size)
+
+/* Pointer to next byte not yet allocated in current chunk. */
+
+#define obstack_next_free(h) ((h)->next_free)
+
+/* Mask specifying low bits that should be clear in address of an object. */
+
+#define obstack_alignment_mask(h) ((h)->alignment_mask)
+
+/* To prevent prototype warnings provide complete argument list. */
+#define obstack_init(h) \
+ _obstack_begin ((h), 0, 0, \
+ (void *(*) (long)) obstack_chunk_alloc, \
+ (void (*) (void *)) obstack_chunk_free)
+
+#define obstack_begin(h, size) \
+ _obstack_begin ((h), (size), 0, \
+ (void *(*) (long)) obstack_chunk_alloc, \
+ (void (*) (void *)) obstack_chunk_free)
+
+#define obstack_specify_allocation(h, size, alignment, chunkfun, freefun) \
+ _obstack_begin ((h), (size), (alignment), \
+ (void *(*) (long)) (chunkfun), \
+ (void (*) (void *)) (freefun))
+
+#define obstack_specify_allocation_with_arg(h, size, alignment, chunkfun, freefun, arg) \
+ _obstack_begin_1 ((h), (size), (alignment), \
+ (void *(*) (void *, long)) (chunkfun), \
+ (void (*) (void *, void *)) (freefun), (arg))
+
+#define obstack_chunkfun(h, newchunkfun) \
+ ((h) -> chunkfun = (struct _obstack_chunk *(*)(void *, long)) (newchunkfun))
+
+#define obstack_freefun(h, newfreefun) \
+ ((h) -> freefun = (void (*)(void *, struct _obstack_chunk *)) (newfreefun))
+
+#define obstack_1grow_fast(h,achar) (*((h)->next_free)++ = (achar))
+
+#define obstack_blank_fast(h,n) ((h)->next_free += (n))
+
+#define obstack_memory_used(h) _obstack_memory_used (h)
+
+#if defined __GNUC__ && defined __STDC__ && __STDC__
+/* NextStep 2.0 cc is really gcc 1.93 but it defines __GNUC__ = 2 and
+ does not implement __extension__. But that compiler doesn't define
+ __GNUC_MINOR__. */
+# if __GNUC__ < 2 || (__NeXT__ && !__GNUC_MINOR__)
+# define __extension__
+# endif
+
+/* For GNU C, if not -traditional,
+ we can define these macros to compute all args only once
+ without using a global variable.
+ Also, we can avoid using the `temp' slot, to make faster code. */
+
+# define obstack_object_size(OBSTACK) \
+ __extension__ \
+ ({ struct obstack const *__o = (OBSTACK); \
+ (unsigned) (__o->next_free - __o->object_base); })
+
+# define obstack_room(OBSTACK) \
+ __extension__ \
+ ({ struct obstack const *__o = (OBSTACK); \
+ (unsigned) (__o->chunk_limit - __o->next_free); })
+
+# define obstack_make_room(OBSTACK,length) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ int __len = (length); \
+ if (__o->chunk_limit - __o->next_free < __len) \
+ _obstack_newchunk (__o, __len); \
+ (void) 0; })
+
+# define obstack_empty_p(OBSTACK) \
+ __extension__ \
+ ({ struct obstack const *__o = (OBSTACK); \
+ (__o->chunk->prev == 0 \
+ && __o->next_free == __PTR_ALIGN ((char *) __o->chunk, \
+ __o->chunk->contents, \
+ __o->alignment_mask)); })
+
+# define obstack_grow(OBSTACK,where,length) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ int __len = (length); \
+ if (__o->next_free + __len > __o->chunk_limit) \
+ _obstack_newchunk (__o, __len); \
+ memcpy (__o->next_free, where, __len); \
+ __o->next_free += __len; \
+ (void) 0; })
+
+# define obstack_grow0(OBSTACK,where,length) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ int __len = (length); \
+ if (__o->next_free + __len + 1 > __o->chunk_limit) \
+ _obstack_newchunk (__o, __len + 1); \
+ memcpy (__o->next_free, where, __len); \
+ __o->next_free += __len; \
+ *(__o->next_free)++ = 0; \
+ (void) 0; })
+
+# define obstack_1grow(OBSTACK,datum) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ if (__o->next_free + 1 > __o->chunk_limit) \
+ _obstack_newchunk (__o, 1); \
+ obstack_1grow_fast (__o, datum); \
+ (void) 0; })
+
+/* These assume that the obstack alignment is good enough for pointers
+ or ints, and that the data added so far to the current object
+ shares that much alignment. */
+
+# define obstack_ptr_grow(OBSTACK,datum) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ if (__o->next_free + sizeof (void *) > __o->chunk_limit) \
+ _obstack_newchunk (__o, sizeof (void *)); \
+ obstack_ptr_grow_fast (__o, datum); }) \
+
+# define obstack_int_grow(OBSTACK,datum) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ if (__o->next_free + sizeof (int) > __o->chunk_limit) \
+ _obstack_newchunk (__o, sizeof (int)); \
+ obstack_int_grow_fast (__o, datum); })
+
+# define obstack_ptr_grow_fast(OBSTACK,aptr) \
+__extension__ \
+({ struct obstack *__o1 = (OBSTACK); \
+ *(const void **) __o1->next_free = (aptr); \
+ __o1->next_free += sizeof (const void *); \
+ (void) 0; })
+
+# define obstack_int_grow_fast(OBSTACK,aint) \
+__extension__ \
+({ struct obstack *__o1 = (OBSTACK); \
+ *(int *) __o1->next_free = (aint); \
+ __o1->next_free += sizeof (int); \
+ (void) 0; })
+
+# define obstack_blank(OBSTACK,length) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ int __len = (length); \
+ if (__o->chunk_limit - __o->next_free < __len) \
+ _obstack_newchunk (__o, __len); \
+ obstack_blank_fast (__o, __len); \
+ (void) 0; })
+
+# define obstack_alloc(OBSTACK,length) \
+__extension__ \
+({ struct obstack *__h = (OBSTACK); \
+ obstack_blank (__h, (length)); \
+ obstack_finish (__h); })
+
+# define obstack_copy(OBSTACK,where,length) \
+__extension__ \
+({ struct obstack *__h = (OBSTACK); \
+ obstack_grow (__h, (where), (length)); \
+ obstack_finish (__h); })
+
+# define obstack_copy0(OBSTACK,where,length) \
+__extension__ \
+({ struct obstack *__h = (OBSTACK); \
+ obstack_grow0 (__h, (where), (length)); \
+ obstack_finish (__h); })
+
+/* The local variable is named __o1 to avoid a name conflict
+ when obstack_blank is called. */
+# define obstack_finish(OBSTACK) \
+__extension__ \
+({ struct obstack *__o1 = (OBSTACK); \
+ void *__value = (void *) __o1->object_base; \
+ if (__o1->next_free == __value) \
+ __o1->maybe_empty_object = 1; \
+ __o1->next_free \
+ = __PTR_ALIGN (__o1->object_base, __o1->next_free, \
+ __o1->alignment_mask); \
+ if (__o1->next_free - (char *)__o1->chunk \
+ > __o1->chunk_limit - (char *)__o1->chunk) \
+ __o1->next_free = __o1->chunk_limit; \
+ __o1->object_base = __o1->next_free; \
+ __value; })
+
+# define obstack_free(OBSTACK, OBJ) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ void *__obj = (OBJ); \
+ if (__obj > (void *)__o->chunk && __obj < (void *)__o->chunk_limit) \
+ __o->next_free = __o->object_base = (char *)__obj; \
+ else (obstack_free) (__o, __obj); })
+
+#else /* not __GNUC__ or not __STDC__ */
+
+# define obstack_object_size(h) \
+ (unsigned) ((h)->next_free - (h)->object_base)
+
+# define obstack_room(h) \
+ (unsigned) ((h)->chunk_limit - (h)->next_free)
+
+# define obstack_empty_p(h) \
+ ((h)->chunk->prev == 0 \
+ && (h)->next_free == __PTR_ALIGN ((char *) (h)->chunk, \
+ (h)->chunk->contents, \
+ (h)->alignment_mask))
+
+/* Note that the call to _obstack_newchunk is enclosed in (..., 0)
+ so that we can avoid having void expressions
+ in the arms of the conditional expression.
+ Casting the third operand to void was tried before,
+ but some compilers won't accept it. */
+
+# define obstack_make_room(h,length) \
+( (h)->temp.tempint = (length), \
+ (((h)->next_free + (h)->temp.tempint > (h)->chunk_limit) \
+ ? (_obstack_newchunk ((h), (h)->temp.tempint), 0) : 0))
+
+# define obstack_grow(h,where,length) \
+( (h)->temp.tempint = (length), \
+ (((h)->next_free + (h)->temp.tempint > (h)->chunk_limit) \
+ ? (_obstack_newchunk ((h), (h)->temp.tempint), 0) : 0), \
+ memcpy ((h)->next_free, where, (h)->temp.tempint), \
+ (h)->next_free += (h)->temp.tempint)
+
+# define obstack_grow0(h,where,length) \
+( (h)->temp.tempint = (length), \
+ (((h)->next_free + (h)->temp.tempint + 1 > (h)->chunk_limit) \
+ ? (_obstack_newchunk ((h), (h)->temp.tempint + 1), 0) : 0), \
+ memcpy ((h)->next_free, where, (h)->temp.tempint), \
+ (h)->next_free += (h)->temp.tempint, \
+ *((h)->next_free)++ = 0)
+
+# define obstack_1grow(h,datum) \
+( (((h)->next_free + 1 > (h)->chunk_limit) \
+ ? (_obstack_newchunk ((h), 1), 0) : 0), \
+ obstack_1grow_fast (h, datum))
+
+# define obstack_ptr_grow(h,datum) \
+( (((h)->next_free + sizeof (char *) > (h)->chunk_limit) \
+ ? (_obstack_newchunk ((h), sizeof (char *)), 0) : 0), \
+ obstack_ptr_grow_fast (h, datum))
+
+# define obstack_int_grow(h,datum) \
+( (((h)->next_free + sizeof (int) > (h)->chunk_limit) \
+ ? (_obstack_newchunk ((h), sizeof (int)), 0) : 0), \
+ obstack_int_grow_fast (h, datum))
+
+# define obstack_ptr_grow_fast(h,aptr) \
+ (((const void **) ((h)->next_free += sizeof (void *)))[-1] = (aptr))
+
+# define obstack_int_grow_fast(h,aint) \
+ (((int *) ((h)->next_free += sizeof (int)))[-1] = (aint))
+
+# define obstack_blank(h,length) \
+( (h)->temp.tempint = (length), \
+ (((h)->chunk_limit - (h)->next_free < (h)->temp.tempint) \
+ ? (_obstack_newchunk ((h), (h)->temp.tempint), 0) : 0), \
+ obstack_blank_fast (h, (h)->temp.tempint))
+
+# define obstack_alloc(h,length) \
+ (obstack_blank ((h), (length)), obstack_finish ((h)))
+
+# define obstack_copy(h,where,length) \
+ (obstack_grow ((h), (where), (length)), obstack_finish ((h)))
+
+# define obstack_copy0(h,where,length) \
+ (obstack_grow0 ((h), (where), (length)), obstack_finish ((h)))
+
+# define obstack_finish(h) \
+( ((h)->next_free == (h)->object_base \
+ ? (((h)->maybe_empty_object = 1), 0) \
+ : 0), \
+ (h)->temp.tempptr = (h)->object_base, \
+ (h)->next_free \
+ = __PTR_ALIGN ((h)->object_base, (h)->next_free, \
+ (h)->alignment_mask), \
+ (((h)->next_free - (char *) (h)->chunk \
+ > (h)->chunk_limit - (char *) (h)->chunk) \
+ ? ((h)->next_free = (h)->chunk_limit) : 0), \
+ (h)->object_base = (h)->next_free, \
+ (h)->temp.tempptr)
+
+# define obstack_free(h,obj) \
+( (h)->temp.tempint = (char *) (obj) - (char *) (h)->chunk, \
+ ((((h)->temp.tempint > 0 \
+ && (h)->temp.tempint < (h)->chunk_limit - (char *) (h)->chunk)) \
+ ? (int) ((h)->next_free = (h)->object_base \
+ = (h)->temp.tempint + (char *) (h)->chunk) \
+ : (((obstack_free) ((h), (h)->temp.tempint + (char *) (h)->chunk), 0), 0)))
+
+#endif /* not __GNUC__ or not __STDC__ */
+
+#ifdef __cplusplus
+} /* C++ */
+#endif
+
+#endif /* obstack.h */
diff --git a/lib/pipe-safer.c b/lib/pipe-safer.c
new file mode 100644
index 0000000..fb02d72
--- /dev/null
+++ b/lib/pipe-safer.c
@@ -0,0 +1,50 @@
+/* Invoke pipe, but avoid some glitches.
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Jim Meyering. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "unistd-safer.h"
+
+#include <unistd.h>
+
+/* Like pipe, but ensure that neither of the file descriptors is
+ STDIN_FILENO, STDOUT_FILENO, or STDERR_FILENO. */
+
+int
+pipe_safer (int fd[2])
+{
+ int fail = pipe (fd);
+ if (fail)
+ return fail;
+
+ {
+ int i;
+ for (i = 0; i < 2; i++)
+ {
+ int f = fd_safer (fd[i]);
+ if (f < 0)
+ return -1;
+ fd[i] = f;
+ }
+ }
+
+ return 0;
+}
diff --git a/lib/quote.c b/lib/quote.c
new file mode 100644
index 0000000..16cc939
--- /dev/null
+++ b/lib/quote.c
@@ -0,0 +1,41 @@
+/* quote.c - quote arguments for output
+ Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert <eggert@twinsun.com> */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "quotearg.h"
+#include "quote.h"
+
+/* Return an unambiguous printable representation of NAME,
+ allocated in slot N, suitable for diagnostics. */
+char const *
+quote_n (int n, char const *name)
+{
+ return quotearg_n_style (n, locale_quoting_style, name);
+}
+
+/* Return an unambiguous printable representation of NAME,
+ suitable for diagnostics. */
+char const *
+quote (char const *name)
+{
+ return quote_n (0, name);
+}
diff --git a/lib/quote.h b/lib/quote.h
new file mode 100644
index 0000000..5400ead
--- /dev/null
+++ b/lib/quote.h
@@ -0,0 +1,22 @@
+/* quote.h - prototypes for quote.c
+
+ Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software
+ Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+
+char const *quote_n (int n, char const *name);
+char const *quote (char const *name);
diff --git a/lib/quotearg.c b/lib/quotearg.c
new file mode 100644
index 0000000..113239f
--- /dev/null
+++ b/lib/quotearg.c
@@ -0,0 +1,690 @@
+/* quotearg.c - quote arguments for output
+
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006 Free
+ Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert <eggert@twinsun.com> */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "quotearg.h"
+
+#include "xalloc.h"
+
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+#define N_(msgid) msgid
+
+#if HAVE_WCHAR_H
+
+/* BSD/OS 4.1 wchar.h requires FILE and struct tm to be declared. */
+# include <stdio.h>
+# include <time.h>
+
+# include <wchar.h>
+#endif
+
+#if !HAVE_MBRTOWC
+/* Disable multibyte processing entirely. Since MB_CUR_MAX is 1, the
+ other macros are defined only for documentation and to satisfy C
+ syntax. */
+# undef MB_CUR_MAX
+# define MB_CUR_MAX 1
+# define mbrtowc(pwc, s, n, ps) ((*(pwc) = *(s)) != 0)
+# define iswprint(wc) isprint ((unsigned char) (wc))
+# undef HAVE_MBSINIT
+#endif
+
+#if !defined mbsinit && !HAVE_MBSINIT
+# define mbsinit(ps) 1
+#endif
+
+#ifndef iswprint
+# if HAVE_WCTYPE_H
+# include <wctype.h>
+# endif
+# if !defined iswprint && !HAVE_ISWPRINT
+# define iswprint(wc) 1
+# endif
+#endif
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t) -1)
+#endif
+
+#define INT_BITS (sizeof (int) * CHAR_BIT)
+
+struct quoting_options
+{
+ /* Basic quoting style. */
+ enum quoting_style style;
+
+ /* Quote the characters indicated by this bit vector even if the
+ quoting style would not normally require them to be quoted. */
+ unsigned int quote_these_too[(UCHAR_MAX / INT_BITS) + 1];
+};
+
+/* Names of quoting styles. */
+char const *const quoting_style_args[] =
+{
+ "literal",
+ "shell",
+ "shell-always",
+ "c",
+ "escape",
+ "locale",
+ "clocale",
+ 0
+};
+
+/* Correspondences to quoting style names. */
+enum quoting_style const quoting_style_vals[] =
+{
+ literal_quoting_style,
+ shell_quoting_style,
+ shell_always_quoting_style,
+ c_quoting_style,
+ escape_quoting_style,
+ locale_quoting_style,
+ clocale_quoting_style
+};
+
+/* The default quoting options. */
+static struct quoting_options default_quoting_options;
+
+/* Allocate a new set of quoting options, with contents initially identical
+ to O if O is not null, or to the default if O is null.
+ It is the caller's responsibility to free the result. */
+struct quoting_options *
+clone_quoting_options (struct quoting_options *o)
+{
+ int e = errno;
+ struct quoting_options *p = xmalloc (sizeof *p);
+ *p = *(o ? o : &default_quoting_options);
+ errno = e;
+ return p;
+}
+
+/* Get the value of O's quoting style. If O is null, use the default. */
+enum quoting_style
+get_quoting_style (struct quoting_options *o)
+{
+ return (o ? o : &default_quoting_options)->style;
+}
+
+/* In O (or in the default if O is null),
+ set the value of the quoting style to S. */
+void
+set_quoting_style (struct quoting_options *o, enum quoting_style s)
+{
+ (o ? o : &default_quoting_options)->style = s;
+}
+
+/* In O (or in the default if O is null),
+ set the value of the quoting options for character C to I.
+ Return the old value. Currently, the only values defined for I are
+ 0 (the default) and 1 (which means to quote the character even if
+ it would not otherwise be quoted). */
+int
+set_char_quoting (struct quoting_options *o, char c, int i)
+{
+ unsigned char uc = c;
+ unsigned int *p =
+ (o ? o : &default_quoting_options)->quote_these_too + uc / INT_BITS;
+ int shift = uc % INT_BITS;
+ int r = (*p >> shift) & 1;
+ *p ^= ((i & 1) ^ r) << shift;
+ return r;
+}
+
+/* MSGID approximates a quotation mark. Return its translation if it
+ has one; otherwise, return either it or "\"", depending on S. */
+static char const *
+gettext_quote (char const *msgid, enum quoting_style s)
+{
+ char const *translation = _(msgid);
+ if (translation == msgid && s == clocale_quoting_style)
+ translation = "\"";
+ return translation;
+}
+
+/* Place into buffer BUFFER (of size BUFFERSIZE) a quoted version of
+ argument ARG (of size ARGSIZE), using QUOTING_STYLE and the
+ non-quoting-style part of O to control quoting.
+ Terminate the output with a null character, and return the written
+ size of the output, not counting the terminating null.
+ If BUFFERSIZE is too small to store the output string, return the
+ value that would have been returned had BUFFERSIZE been large enough.
+ If ARGSIZE is SIZE_MAX, use the string length of the argument for ARGSIZE.
+
+ This function acts like quotearg_buffer (BUFFER, BUFFERSIZE, ARG,
+ ARGSIZE, O), except it uses QUOTING_STYLE instead of the quoting
+ style specified by O, and O may not be null. */
+
+static size_t
+quotearg_buffer_restyled (char *buffer, size_t buffersize,
+ char const *arg, size_t argsize,
+ enum quoting_style quoting_style,
+ struct quoting_options const *o)
+{
+ size_t i;
+ size_t len = 0;
+ char const *quote_string = 0;
+ size_t quote_string_len = 0;
+ bool backslash_escapes = false;
+ bool unibyte_locale = MB_CUR_MAX == 1;
+
+#define STORE(c) \
+ do \
+ { \
+ if (len < buffersize) \
+ buffer[len] = (c); \
+ len++; \
+ } \
+ while (0)
+
+ switch (quoting_style)
+ {
+ case c_quoting_style:
+ STORE ('"');
+ backslash_escapes = true;
+ quote_string = "\"";
+ quote_string_len = 1;
+ break;
+
+ case escape_quoting_style:
+ backslash_escapes = true;
+ break;
+
+ case locale_quoting_style:
+ case clocale_quoting_style:
+ {
+ /* TRANSLATORS:
+ Get translations for open and closing quotation marks.
+
+ The message catalog should translate "`" to a left
+ quotation mark suitable for the locale, and similarly for
+ "'". If the catalog has no translation,
+ locale_quoting_style quotes `like this', and
+ clocale_quoting_style quotes "like this".
+
+ For example, an American English Unicode locale should
+ translate "`" to U+201C (LEFT DOUBLE QUOTATION MARK), and
+ should translate "'" to U+201D (RIGHT DOUBLE QUOTATION
+ MARK). A British English Unicode locale should instead
+ translate these to U+2018 (LEFT SINGLE QUOTATION MARK) and
+ U+2019 (RIGHT SINGLE QUOTATION MARK), respectively.
+
+ If you don't know what to put here, please see
+ <http://en.wikipedia.org/wiki/Quotation_mark#Glyphs>
+ and use glyphs suitable for your language. */
+
+ char const *left = gettext_quote (N_("`"), quoting_style);
+ char const *right = gettext_quote (N_("'"), quoting_style);
+ for (quote_string = left; *quote_string; quote_string++)
+ STORE (*quote_string);
+ backslash_escapes = true;
+ quote_string = right;
+ quote_string_len = strlen (quote_string);
+ }
+ break;
+
+ case shell_always_quoting_style:
+ STORE ('\'');
+ quote_string = "'";
+ quote_string_len = 1;
+ break;
+
+ default:
+ break;
+ }
+
+ for (i = 0; ! (argsize == SIZE_MAX ? arg[i] == '\0' : i == argsize); i++)
+ {
+ unsigned char c;
+ unsigned char esc;
+
+ if (backslash_escapes
+ && quote_string_len
+ && i + quote_string_len <= argsize
+ && memcmp (arg + i, quote_string, quote_string_len) == 0)
+ STORE ('\\');
+
+ c = arg[i];
+ switch (c)
+ {
+ case '\0':
+ if (backslash_escapes)
+ {
+ STORE ('\\');
+ STORE ('0');
+ STORE ('0');
+ c = '0';
+ }
+ break;
+
+ case '?':
+ switch (quoting_style)
+ {
+ case shell_quoting_style:
+ goto use_shell_always_quoting_style;
+
+ case c_quoting_style:
+ if (i + 2 < argsize && arg[i + 1] == '?')
+ switch (arg[i + 2])
+ {
+ case '!': case '\'':
+ case '(': case ')': case '-': case '/':
+ case '<': case '=': case '>':
+ /* Escape the second '?' in what would otherwise be
+ a trigraph. */
+ c = arg[i + 2];
+ i += 2;
+ STORE ('?');
+ STORE ('\\');
+ STORE ('?');
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ case '\a': esc = 'a'; goto c_escape;
+ case '\b': esc = 'b'; goto c_escape;
+ case '\f': esc = 'f'; goto c_escape;
+ case '\n': esc = 'n'; goto c_and_shell_escape;
+ case '\r': esc = 'r'; goto c_and_shell_escape;
+ case '\t': esc = 't'; goto c_and_shell_escape;
+ case '\v': esc = 'v'; goto c_escape;
+ case '\\': esc = c; goto c_and_shell_escape;
+
+ c_and_shell_escape:
+ if (quoting_style == shell_quoting_style)
+ goto use_shell_always_quoting_style;
+ c_escape:
+ if (backslash_escapes)
+ {
+ c = esc;
+ goto store_escape;
+ }
+ break;
+
+ case '{': case '}': /* sometimes special if isolated */
+ if (! (argsize == SIZE_MAX ? arg[1] == '\0' : argsize == 1))
+ break;
+ /* Fall through. */
+ case '#': case '~':
+ if (i != 0)
+ break;
+ /* Fall through. */
+ case ' ':
+ case '!': /* special in bash */
+ case '"': case '$': case '&':
+ case '(': case ')': case '*': case ';':
+ case '<':
+ case '=': /* sometimes special in 0th or (with "set -k") later args */
+ case '>': case '[':
+ case '^': /* special in old /bin/sh, e.g. SunOS 4.1.4 */
+ case '`': case '|':
+ /* A shell special character. In theory, '$' and '`' could
+ be the first bytes of multibyte characters, which means
+ we should check them with mbrtowc, but in practice this
+ doesn't happen so it's not worth worrying about. */
+ if (quoting_style == shell_quoting_style)
+ goto use_shell_always_quoting_style;
+ break;
+
+ case '\'':
+ switch (quoting_style)
+ {
+ case shell_quoting_style:
+ goto use_shell_always_quoting_style;
+
+ case shell_always_quoting_style:
+ STORE ('\'');
+ STORE ('\\');
+ STORE ('\'');
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ case '%': case '+': case ',': case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9': case ':':
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+ case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z': case ']': case '_': case 'a': case 'b':
+ case 'c': case 'd': case 'e': case 'f': case 'g': case 'h':
+ case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
+ case 'o': case 'p': case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x': case 'y': case 'z':
+ /* These characters don't cause problems, no matter what the
+ quoting style is. They cannot start multibyte sequences. */
+ break;
+
+ default:
+ /* If we have a multibyte sequence, copy it until we reach
+ its end, find an error, or come back to the initial shift
+ state. For C-like styles, if the sequence has
+ unprintable characters, escape the whole sequence, since
+ we can't easily escape single characters within it. */
+ {
+ /* Length of multibyte sequence found so far. */
+ size_t m;
+
+ bool printable;
+
+ if (unibyte_locale)
+ {
+ m = 1;
+ printable = isprint (c) != 0;
+ }
+ else
+ {
+ mbstate_t mbstate;
+ memset (&mbstate, 0, sizeof mbstate);
+
+ m = 0;
+ printable = true;
+ if (argsize == SIZE_MAX)
+ argsize = strlen (arg);
+
+ do
+ {
+ wchar_t w;
+ size_t bytes = mbrtowc (&w, &arg[i + m],
+ argsize - (i + m), &mbstate);
+ if (bytes == 0)
+ break;
+ else if (bytes == (size_t) -1)
+ {
+ printable = false;
+ break;
+ }
+ else if (bytes == (size_t) -2)
+ {
+ printable = false;
+ while (i + m < argsize && arg[i + m])
+ m++;
+ break;
+ }
+ else
+ {
+ /* Work around a bug with older shells that "see" a '\'
+ that is really the 2nd byte of a multibyte character.
+ In practice the problem is limited to ASCII
+ chars >= '@' that are shell special chars. */
+ if ('[' == 0x5b && quoting_style == shell_quoting_style)
+ {
+ size_t j;
+ for (j = 1; j < bytes; j++)
+ switch (arg[i + m + j])
+ {
+ case '[': case '\\': case '^':
+ case '`': case '|':
+ goto use_shell_always_quoting_style;
+
+ default:
+ break;
+ }
+ }
+
+ if (! iswprint (w))
+ printable = false;
+ m += bytes;
+ }
+ }
+ while (! mbsinit (&mbstate));
+ }
+
+ if (1 < m || (backslash_escapes && ! printable))
+ {
+ /* Output a multibyte sequence, or an escaped
+ unprintable unibyte character. */
+ size_t ilim = i + m;
+
+ for (;;)
+ {
+ if (backslash_escapes && ! printable)
+ {
+ STORE ('\\');
+ STORE ('0' + (c >> 6));
+ STORE ('0' + ((c >> 3) & 7));
+ c = '0' + (c & 7);
+ }
+ if (ilim <= i + 1)
+ break;
+ STORE (c);
+ c = arg[++i];
+ }
+
+ goto store_c;
+ }
+ }
+ }
+
+ if (! (backslash_escapes
+ && o->quote_these_too[c / INT_BITS] & (1 << (c % INT_BITS))))
+ goto store_c;
+
+ store_escape:
+ STORE ('\\');
+
+ store_c:
+ STORE (c);
+ }
+
+ if (i == 0 && quoting_style == shell_quoting_style)
+ goto use_shell_always_quoting_style;
+
+ if (quote_string)
+ for (; *quote_string; quote_string++)
+ STORE (*quote_string);
+
+ if (len < buffersize)
+ buffer[len] = '\0';
+ return len;
+
+ use_shell_always_quoting_style:
+ return quotearg_buffer_restyled (buffer, buffersize, arg, argsize,
+ shell_always_quoting_style, o);
+}
+
+/* Place into buffer BUFFER (of size BUFFERSIZE) a quoted version of
+ argument ARG (of size ARGSIZE), using O to control quoting.
+ If O is null, use the default.
+ Terminate the output with a null character, and return the written
+ size of the output, not counting the terminating null.
+ If BUFFERSIZE is too small to store the output string, return the
+ value that would have been returned had BUFFERSIZE been large enough.
+ If ARGSIZE is SIZE_MAX, use the string length of the argument for
+ ARGSIZE. */
+size_t
+quotearg_buffer (char *buffer, size_t buffersize,
+ char const *arg, size_t argsize,
+ struct quoting_options const *o)
+{
+ struct quoting_options const *p = o ? o : &default_quoting_options;
+ int e = errno;
+ size_t r = quotearg_buffer_restyled (buffer, buffersize, arg, argsize,
+ p->style, p);
+ errno = e;
+ return r;
+}
+
+/* Like quotearg_buffer (..., ARG, ARGSIZE, O), except return newly
+ allocated storage containing the quoted string. */
+char *
+quotearg_alloc (char const *arg, size_t argsize,
+ struct quoting_options const *o)
+{
+ int e = errno;
+ size_t bufsize = quotearg_buffer (0, 0, arg, argsize, o) + 1;
+ char *buf = xmalloc (bufsize);
+ quotearg_buffer (buf, bufsize, arg, argsize, o);
+ errno = e;
+ return buf;
+}
+
+/* Use storage slot N to return a quoted version of argument ARG.
+ ARG is of size ARGSIZE, but if that is SIZE_MAX, ARG is a
+ null-terminated string.
+ OPTIONS specifies the quoting options.
+ The returned value points to static storage that can be
+ reused by the next call to this function with the same value of N.
+ N must be nonnegative. N is deliberately declared with type "int"
+ to allow for future extensions (using negative values). */
+static char *
+quotearg_n_options (int n, char const *arg, size_t argsize,
+ struct quoting_options const *options)
+{
+ int e = errno;
+
+ /* Preallocate a slot 0 buffer, so that the caller can always quote
+ one small component of a "memory exhausted" message in slot 0. */
+ static char slot0[256];
+ static unsigned int nslots = 1;
+ unsigned int n0 = n;
+ struct slotvec
+ {
+ size_t size;
+ char *val;
+ };
+ static struct slotvec slotvec0 = {sizeof slot0, slot0};
+ static struct slotvec *slotvec = &slotvec0;
+
+ if (n < 0)
+ abort ();
+
+ if (nslots <= n0)
+ {
+ /* FIXME: technically, the type of n1 should be `unsigned int',
+ but that evokes an unsuppressible warning from gcc-4.0.1 and
+ older. If gcc ever provides an option to suppress that warning,
+ revert to the original type, so that the test in xalloc_oversized
+ is once again performed only at compile time. */
+ size_t n1 = n0 + 1;
+
+ if (xalloc_oversized (n1, sizeof *slotvec))
+ xalloc_die ();
+
+ if (slotvec == &slotvec0)
+ {
+ slotvec = xmalloc (sizeof *slotvec);
+ *slotvec = slotvec0;
+ }
+ slotvec = xrealloc (slotvec, n1 * sizeof *slotvec);
+ memset (slotvec + nslots, 0, (n1 - nslots) * sizeof *slotvec);
+ nslots = n1;
+ }
+
+ {
+ size_t size = slotvec[n].size;
+ char *val = slotvec[n].val;
+ size_t qsize = quotearg_buffer (val, size, arg, argsize, options);
+
+ if (size <= qsize)
+ {
+ slotvec[n].size = size = qsize + 1;
+ if (val != slot0)
+ free (val);
+ slotvec[n].val = val = xmalloc (size);
+ quotearg_buffer (val, size, arg, argsize, options);
+ }
+
+ errno = e;
+ return val;
+ }
+}
+
+char *
+quotearg_n (int n, char const *arg)
+{
+ return quotearg_n_options (n, arg, SIZE_MAX, &default_quoting_options);
+}
+
+char *
+quotearg (char const *arg)
+{
+ return quotearg_n (0, arg);
+}
+
+/* Return quoting options for STYLE, with no extra quoting. */
+static struct quoting_options
+quoting_options_from_style (enum quoting_style style)
+{
+ struct quoting_options o;
+ o.style = style;
+ memset (o.quote_these_too, 0, sizeof o.quote_these_too);
+ return o;
+}
+
+char *
+quotearg_n_style (int n, enum quoting_style s, char const *arg)
+{
+ struct quoting_options const o = quoting_options_from_style (s);
+ return quotearg_n_options (n, arg, SIZE_MAX, &o);
+}
+
+char *
+quotearg_n_style_mem (int n, enum quoting_style s,
+ char const *arg, size_t argsize)
+{
+ struct quoting_options const o = quoting_options_from_style (s);
+ return quotearg_n_options (n, arg, argsize, &o);
+}
+
+char *
+quotearg_style (enum quoting_style s, char const *arg)
+{
+ return quotearg_n_style (0, s, arg);
+}
+
+char *
+quotearg_char (char const *arg, char ch)
+{
+ struct quoting_options options;
+ options = default_quoting_options;
+ set_char_quoting (&options, ch, 1);
+ return quotearg_n_options (0, arg, SIZE_MAX, &options);
+}
+
+char *
+quotearg_colon (char const *arg)
+{
+ return quotearg_char (arg, ':');
+}
diff --git a/lib/quotearg.h b/lib/quotearg.h
new file mode 100644
index 0000000..24f26f7
--- /dev/null
+++ b/lib/quotearg.h
@@ -0,0 +1,137 @@
+/* quotearg.h - quote arguments for output
+
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Free Software
+ Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert <eggert@twinsun.com> */
+
+#ifndef QUOTEARG_H_
+# define QUOTEARG_H_ 1
+
+# include <stddef.h>
+
+/* Basic quoting styles. */
+enum quoting_style
+ {
+ /* Output names as-is (ls --quoting-style=literal). */
+ literal_quoting_style,
+
+ /* Quote names for the shell if they contain shell metacharacters
+ or would cause ambiguous output (ls --quoting-style=shell). */
+ shell_quoting_style,
+
+ /* Quote names for the shell, even if they would normally not
+ require quoting (ls --quoting-style=shell-always). */
+ shell_always_quoting_style,
+
+ /* Quote names as for a C language string (ls --quoting-style=c). */
+ c_quoting_style,
+
+ /* Like c_quoting_style except omit the surrounding double-quote
+ characters (ls --quoting-style=escape). */
+ escape_quoting_style,
+
+ /* Like clocale_quoting_style, but quote `like this' instead of
+ "like this" in the default C locale (ls --quoting-style=locale). */
+ locale_quoting_style,
+
+ /* Like c_quoting_style except use quotation marks appropriate for
+ the locale (ls --quoting-style=clocale). */
+ clocale_quoting_style
+ };
+
+/* For now, --quoting-style=literal is the default, but this may change. */
+# ifndef DEFAULT_QUOTING_STYLE
+# define DEFAULT_QUOTING_STYLE literal_quoting_style
+# endif
+
+/* Names of quoting styles and their corresponding values. */
+extern char const *const quoting_style_args[];
+extern enum quoting_style const quoting_style_vals[];
+
+struct quoting_options;
+
+/* The functions listed below set and use a hidden variable
+ that contains the default quoting style options. */
+
+/* Allocate a new set of quoting options, with contents initially identical
+ to O if O is not null, or to the default if O is null.
+ It is the caller's responsibility to free the result. */
+struct quoting_options *clone_quoting_options (struct quoting_options *o);
+
+/* Get the value of O's quoting style. If O is null, use the default. */
+enum quoting_style get_quoting_style (struct quoting_options *o);
+
+/* In O (or in the default if O is null),
+ set the value of the quoting style to S. */
+void set_quoting_style (struct quoting_options *o, enum quoting_style s);
+
+/* In O (or in the default if O is null),
+ set the value of the quoting options for character C to I.
+ Return the old value. Currently, the only values defined for I are
+ 0 (the default) and 1 (which means to quote the character even if
+ it would not otherwise be quoted). */
+int set_char_quoting (struct quoting_options *o, char c, int i);
+
+/* Place into buffer BUFFER (of size BUFFERSIZE) a quoted version of
+ argument ARG (of size ARGSIZE), using O to control quoting.
+ If O is null, use the default.
+ Terminate the output with a null character, and return the written
+ size of the output, not counting the terminating null.
+ If BUFFERSIZE is too small to store the output string, return the
+ value that would have been returned had BUFFERSIZE been large enough.
+ If ARGSIZE is -1, use the string length of the argument for ARGSIZE. */
+size_t quotearg_buffer (char *buffer, size_t buffersize,
+ char const *arg, size_t argsize,
+ struct quoting_options const *o);
+
+/* Like quotearg_buffer, except return the result in a newly allocated
+ buffer. It is the caller's responsibility to free the result. */
+char *quotearg_alloc (char const *arg, size_t argsize,
+ struct quoting_options const *o);
+
+/* Use storage slot N to return a quoted version of the string ARG.
+ Use the default quoting options.
+ The returned value points to static storage that can be
+ reused by the next call to this function with the same value of N.
+ N must be nonnegative. */
+char *quotearg_n (int n, char const *arg);
+
+/* Equivalent to quotearg_n (0, ARG). */
+char *quotearg (char const *arg);
+
+/* Use style S and storage slot N to return a quoted version of the string ARG.
+ This is like quotearg_n (N, ARG), except that it uses S with no other
+ options to specify the quoting method. */
+char *quotearg_n_style (int n, enum quoting_style s, char const *arg);
+
+/* Use style S and storage slot N to return a quoted version of the
+ argument ARG of size ARGSIZE. This is like quotearg_n_style
+ (N, S, ARG), except it can quote null bytes. */
+char *quotearg_n_style_mem (int n, enum quoting_style s,
+ char const *arg, size_t argsize);
+
+/* Equivalent to quotearg_n_style (0, S, ARG). */
+char *quotearg_style (enum quoting_style s, char const *arg);
+
+/* Like quotearg (ARG), except also quote any instances of CH. */
+char *quotearg_char (char const *arg, char ch);
+
+/* Equivalent to quotearg_char (ARG, ':'). */
+char *quotearg_colon (char const *arg);
+
+#endif /* !QUOTEARG_H_ */
diff --git a/lib/stdbool_.h b/lib/stdbool_.h
new file mode 100644
index 0000000..efa80ba
--- /dev/null
+++ b/lib/stdbool_.h
@@ -0,0 +1,115 @@
+/* Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+ Written by Bruno Haible <haible@clisp.cons.org>, 2001.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _STDBOOL_H
+#define _STDBOOL_H
+
+/* ISO C 99 <stdbool.h> for platforms that lack it. */
+
+/* Usage suggestions:
+
+ Programs that use <stdbool.h> should be aware of some limitations
+ and standards compliance issues.
+
+ Standards compliance:
+
+ - <stdbool.h> must be #included before 'bool', 'false', 'true'
+ can be used.
+
+ - You cannot assume that sizeof (bool) == 1.
+
+ - Programs should not undefine the macros bool, true, and false,
+ as C99 lists that as an "obsolescent feature".
+
+ Limitations of this substitute, when used in a C89 environment:
+
+ - <stdbool.h> must be #included before the '_Bool' type can be used.
+
+ - You cannot assume that _Bool is a typedef; it might be a macro.
+
+ - In C99, casts and automatic conversions to '_Bool' or 'bool' are
+ performed in such a way that every nonzero value gets converted
+ to 'true', and zero gets converted to 'false'. This doesn't work
+ with this substitute. With this substitute, only the values 0 and 1
+ give the expected result when converted to _Bool' or 'bool'.
+
+ Also, it is suggested that programs use 'bool' rather than '_Bool';
+ this isn't required, but 'bool' is more common. */
+
+
+/* 7.16. Boolean type and values */
+
+/* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same
+ definitions below, but temporarily we have to #undef them. */
+#ifdef __BEOS__
+# include <OS.h> /* defines bool but not _Bool */
+# undef false
+# undef true
+#endif
+
+/* For the sake of symbolic names in gdb, we define true and false as
+ enum constants, not only as macros.
+ It is tempting to write
+ typedef enum { false = 0, true = 1 } _Bool;
+ so that gdb prints values of type 'bool' symbolically. But if we do
+ this, values of type '_Bool' may promote to 'int' or 'unsigned int'
+ (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int'
+ (see ISO C 99 6.3.1.1.(2)). So we add a negative value to the
+ enum; this ensures that '_Bool' promotes to 'int'. */
+#if defined __cplusplus || defined __BEOS__
+ /* A compiler known to have 'bool'. */
+ /* If the compiler already has both 'bool' and '_Bool', we can assume they
+ are the same types. */
+# if !@HAVE__BOOL@
+typedef bool _Bool;
+# endif
+#else
+# if !defined __GNUC__
+ /* If @HAVE__BOOL@:
+ Some HP-UX cc and AIX IBM C compiler versions have compiler bugs when
+ the built-in _Bool type is used. See
+ http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+ http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+ http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+ Similar bugs are likely with other compilers as well; this file
+ wouldn't be used if <stdbool.h> was working.
+ So we override the _Bool type.
+ If !@HAVE__BOOL@:
+ Need to define _Bool ourselves. As 'signed char' or as an enum type?
+ Use of a typedef, with SunPRO C, leads to a stupid
+ "warning: _Bool is a keyword in ISO C99".
+ Use of an enum type, with IRIX cc, leads to a stupid
+ "warning(1185): enumerated type mixed with another type".
+ The only benefit of the enum type, debuggability, is not important
+ with these compilers. So use 'signed char' and no typedef. */
+# define _Bool signed char
+enum { false = 0, true = 1 };
+# else
+ /* With this compiler, trust the _Bool type if the compiler has it. */
+# if !@HAVE__BOOL@
+typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool;
+# endif
+# endif
+#endif
+#define bool _Bool
+
+/* The other macros must be usable in preprocessor directives. */
+#define false 0
+#define true 1
+#define __bool_true_false_are_defined 1
+
+#endif /* _STDBOOL_H */
diff --git a/lib/stdio--.h b/lib/stdio--.h
new file mode 100644
index 0000000..b2765fd
--- /dev/null
+++ b/lib/stdio--.h
@@ -0,0 +1,25 @@
+/* Like stdio.h, but redefine some names to avoid glitches.
+
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+#include <stdio.h>
+#include "stdio-safer.h"
+
+#undef fopen
+#define fopen fopen_safer
diff --git a/lib/stdio-safer.h b/lib/stdio-safer.h
new file mode 100644
index 0000000..0b9a9ab
--- /dev/null
+++ b/lib/stdio-safer.h
@@ -0,0 +1,23 @@
+/* Invoke stdio functions, but avoid some glitches.
+
+ Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+#include <stdio.h>
+
+FILE *fopen_safer (char const *, char const *);
diff --git a/lib/stpcpy.c b/lib/stpcpy.c
new file mode 100644
index 0000000..acda21a
--- /dev/null
+++ b/lib/stpcpy.c
@@ -0,0 +1,50 @@
+/* stpcpy.c -- copy a string and return pointer to end of new string
+ Copyright (C) 1992, 1995, 1997, 1998 Free Software Foundation, Inc.
+
+ NOTE: The canonical source of this file is maintained with the GNU C Library.
+ Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+
+#undef __stpcpy
+#undef stpcpy
+
+#ifndef weak_alias
+# define __stpcpy stpcpy
+#endif
+
+/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */
+char *
+__stpcpy (char *dest, const char *src)
+{
+ register char *d = dest;
+ register const char *s = src;
+
+ do
+ *d++ = *s;
+ while (*s++ != '\0');
+
+ return d - 1;
+}
+#ifdef weak_alias
+weak_alias (__stpcpy, stpcpy)
+#endif
diff --git a/lib/stpcpy.h b/lib/stpcpy.h
new file mode 100644
index 0000000..53c4ce0
--- /dev/null
+++ b/lib/stpcpy.h
@@ -0,0 +1,41 @@
+/* String copying.
+ Copyright (C) 1995, 2001, 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _STPCPY_H
+#define _STPCPY_H
+
+#if HAVE_STPCPY
+
+/* Get stpcpy() declaration. */
+#include <string.h>
+
+#else
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Copy SRC to DST, returning the address of the terminating '\0' in DST. */
+extern char *stpcpy (char *dst, const char *src);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif /* _STPCPY_H */
diff --git a/lib/strdup.c b/lib/strdup.c
new file mode 100644
index 0000000..d6d0116
--- /dev/null
+++ b/lib/strdup.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 1991, 1996, 1997, 1998, 2002, 2003, 2004 Free Software
+ Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifndef _LIBC
+/* Get specification. */
+# include "strdup.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#undef __strdup
+#undef strdup
+
+#ifndef weak_alias
+# define __strdup strdup
+#endif
+
+/* Duplicate S, returning an identical malloc'd string. */
+char *
+__strdup (const char *s)
+{
+ size_t len = strlen (s) + 1;
+ void *new = malloc (len);
+
+ if (new == NULL)
+ return NULL;
+
+ return (char *) memcpy (new, s, len);
+}
+#ifdef libc_hidden_def
+libc_hidden_def (__strdup)
+#endif
+#ifdef weak_alias
+weak_alias (__strdup, strdup)
+#endif
diff --git a/lib/strdup.h b/lib/strdup.h
new file mode 100644
index 0000000..a0d5fb9
--- /dev/null
+++ b/lib/strdup.h
@@ -0,0 +1,29 @@
+/* strdup.h -- duplicate a string
+ Copyright (C) 2004 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef STRDUP_H_
+#define STRDUP_H_
+
+/* Get strdup declaration, if available. */
+#include <string.h>
+
+#if defined HAVE_DECL_STRDUP && !HAVE_DECL_STRDUP && !defined strdup
+/* Duplicate S, returning an identical malloc'd string. */
+extern char *strdup (const char *s);
+#endif
+
+#endif /* STRDUP_H_ */
diff --git a/lib/strerror.c b/lib/strerror.c
new file mode 100644
index 0000000..623821d
--- /dev/null
+++ b/lib/strerror.c
@@ -0,0 +1,49 @@
+/* strerror.c --- ANSI C compatible system error routine
+
+ Copyright (C) 1986, 1988, 1989, 1991, 2002, 2003 Free Software
+ Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <limits.h>
+
+/* Don't include <stdio.h>, since it may or may not declare
+ sys_errlist and its declarations may collide with ours. Just
+ declare the stuff that we need directly. Standard hosted C89
+ implementations define strerror and they don't need this strerror
+ function, so take some liberties with the standard to cater to
+ ancient or limited freestanding implementations. */
+int sprintf (char *, char const *, ...);
+extern int sys_nerr;
+extern char *sys_errlist[];
+
+char *
+strerror (int n)
+{
+ static char const fmt[] = "Unknown error (%d)";
+ static char mesg[sizeof fmt + sizeof n * CHAR_BIT / 3];
+
+ if (n < 0 || n >= sys_nerr)
+ {
+ sprintf (mesg, fmt, n);
+ return mesg;
+ }
+ else
+ return sys_errlist[n];
+}
diff --git a/lib/stripslash.c b/lib/stripslash.c
new file mode 100644
index 0000000..9b55da4
--- /dev/null
+++ b/lib/stripslash.c
@@ -0,0 +1,40 @@
+/* stripslash.c -- remove redundant trailing slashes from a file name
+
+ Copyright (C) 1990, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "dirname.h"
+
+/* Remove trailing slashes from FILE.
+ Return true if a trailing slash was removed.
+ This is useful when using file name completion from a shell that
+ adds a "/" after directory names (such as tcsh and bash), because
+ the Unix rename and rmdir system calls return an "Invalid argument" error
+ when given a file that ends in "/" (except for the root directory). */
+
+bool
+strip_trailing_slashes (char *file)
+{
+ char *base = base_name (file);
+ char *base_lim = base + base_len (base);
+ bool had_slash = (*base_lim != '\0');
+ *base_lim = '\0';
+ return had_slash;
+}
diff --git a/lib/strndup.c b/lib/strndup.c
new file mode 100644
index 0000000..2626373
--- /dev/null
+++ b/lib/strndup.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2005, 2006 Free
+ Software Foundation, Inc.
+
+ NOTE: The canonical source of this file is maintained with the GNU C Library.
+ Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#if !_LIBC
+# include "strndup.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#if !_LIBC
+# include "strnlen.h"
+# ifndef __strnlen
+# define __strnlen strnlen
+# endif
+#endif
+
+#undef __strndup
+#if _LIBC
+# undef strndup
+#endif
+
+#ifndef weak_alias
+# define __strndup strndup
+#endif
+
+char *
+__strndup (s, n)
+ const char *s;
+ size_t n;
+{
+ size_t len = __strnlen (s, n);
+ char *new = malloc (len + 1);
+
+ if (new == NULL)
+ return NULL;
+
+ new[len] = '\0';
+ return memcpy (new, s, len);
+}
+#ifdef libc_hidden_def
+libc_hidden_def (__strndup)
+#endif
+#ifdef weak_alias
+weak_alias (__strndup, strndup)
+#endif
diff --git a/lib/strndup.h b/lib/strndup.h
new file mode 100644
index 0000000..8eae493
--- /dev/null
+++ b/lib/strndup.h
@@ -0,0 +1,30 @@
+/* Duplicate a size-bounded string.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#if HAVE_STRNDUP
+
+/* Get strndup() declaration. */
+#include <string.h>
+
+#else
+
+#include <stddef.h>
+
+/* Return a newly allocated copy of at most N bytes of STRING. */
+extern char *strndup (const char *string, size_t n);
+
+#endif
diff --git a/lib/strnlen.c b/lib/strnlen.c
new file mode 100644
index 0000000..09ba788
--- /dev/null
+++ b/lib/strnlen.c
@@ -0,0 +1,33 @@
+/* Find the length of STRING, but scan at most MAXLEN characters.
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+ Written by Simon Josefsson.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "strnlen.h"
+
+/* Find the length of STRING, but scan at most MAXLEN characters.
+ If no '\0' terminator is found in that many characters, return MAXLEN. */
+
+size_t
+strnlen (const char *string, size_t maxlen)
+{
+ const char *end = memchr (string, '\0', maxlen);
+ return end ? (size_t) (end - string) : maxlen;
+}
diff --git a/lib/strnlen.h b/lib/strnlen.h
new file mode 100644
index 0000000..ba74dba
--- /dev/null
+++ b/lib/strnlen.h
@@ -0,0 +1,32 @@
+/* Find the length of STRING, but scan at most MAXLEN characters.
+ Copyright (C) 2005 Free Software Foundation, Inc.
+ Written by Simon Josefsson.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef STRNLEN_H
+#define STRNLEN_H
+
+/* Get strnlen declaration, if available. */
+#include <string.h>
+
+#if defined HAVE_DECL_STRNLEN && !HAVE_DECL_STRNLEN
+/* Find the length (number of bytes) of STRING, but scan at most
+ MAXLEN bytes. If no '\0' terminator is found in that many bytes,
+ return MAXLEN. */
+extern size_t strnlen(const char *string, size_t maxlen);
+#endif
+
+#endif /* STRNLEN_H */
diff --git a/lib/strtol.c b/lib/strtol.c
new file mode 100644
index 0000000..9bfbe3c
--- /dev/null
+++ b/lib/strtol.c
@@ -0,0 +1,447 @@
+/* Convert string representation of a number into an integer value.
+
+ Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2003, 2005
+ Free Software Foundation, Inc.
+
+ NOTE: The canonical source of this file is maintained with the GNU C
+ Library. Bugs can be reported to bug-glibc@gnu.org.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef _LIBC
+# define USE_NUMBER_GROUPING
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#ifndef errno
+extern int errno;
+#endif
+#ifndef __set_errno
+# define __set_errno(Val) errno = (Val)
+#endif
+
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef USE_NUMBER_GROUPING
+# include "../locale/localeinfo.h"
+#endif
+
+/* Nonzero if we are defining `strtoul' or `strtoull', operating on
+ unsigned integers. */
+#ifndef UNSIGNED
+# define UNSIGNED 0
+# define INT LONG int
+#else
+# define INT unsigned LONG int
+#endif
+
+/* Determine the name. */
+#ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# if UNSIGNED
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol __wcstoull_l
+# else
+# define strtol __wcstoul_l
+# endif
+# else
+# ifdef QUAD
+# define strtol __strtoull_l
+# else
+# define strtol __strtoul_l
+# endif
+# endif
+# else
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol __wcstoll_l
+# else
+# define strtol __wcstol_l
+# endif
+# else
+# ifdef QUAD
+# define strtol __strtoll_l
+# else
+# define strtol __strtol_l
+# endif
+# endif
+# endif
+#else
+# if UNSIGNED
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol wcstoull
+# else
+# define strtol wcstoul
+# endif
+# else
+# ifdef QUAD
+# define strtol strtoull
+# else
+# define strtol strtoul
+# endif
+# endif
+# else
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol wcstoll
+# else
+# define strtol wcstol
+# endif
+# else
+# ifdef QUAD
+# define strtol strtoll
+# endif
+# endif
+# endif
+#endif
+
+/* If QUAD is defined, we are defining `strtoll' or `strtoull',
+ operating on `long long int's. */
+#ifdef QUAD
+# define LONG long long
+# define STRTOL_LONG_MIN LONG_LONG_MIN
+# define STRTOL_LONG_MAX LONG_LONG_MAX
+# define STRTOL_ULONG_MAX ULONG_LONG_MAX
+
+/* The extra casts in the following macros work around compiler bugs,
+ e.g., in Cray C 5.0.3.0. */
+
+/* True if negative values of the signed integer type T use two's
+ complement, ones' complement, or signed magnitude representation,
+ respectively. Much GNU code assumes two's complement, but some
+ people like to be portable to all possible C hosts. */
+# define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1)
+# define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0)
+# define TYPE_SIGNED_MAGNITUDE(t) ((t) ~ (t) 0 < (t) -1)
+
+/* True if the arithmetic type T is signed. */
+# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+
+/* The maximum and minimum values for the integer type T. These
+ macros have undefined behavior if T is signed and has padding bits.
+ If this is a problem for you, please let us know how to fix it for
+ your host. */
+# define TYPE_MINIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) 0 \
+ : TYPE_SIGNED_MAGNITUDE (t) \
+ ? ~ (t) 0 \
+ : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
+# define TYPE_MAXIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) -1 \
+ : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
+
+# ifndef ULONG_LONG_MAX
+# define ULONG_LONG_MAX TYPE_MAXIMUM (unsigned long long)
+# endif
+# ifndef LONG_LONG_MAX
+# define LONG_LONG_MAX TYPE_MAXIMUM (long long int)
+# endif
+# ifndef LONG_LONG_MIN
+# define LONG_LONG_MIN TYPE_MINIMUM (long long int)
+# endif
+
+# if __GNUC__ == 2 && __GNUC_MINOR__ < 7
+ /* Work around gcc bug with using this constant. */
+ static const unsigned long long int maxquad = ULONG_LONG_MAX;
+# undef STRTOL_ULONG_MAX
+# define STRTOL_ULONG_MAX maxquad
+# endif
+#else
+# define LONG long
+# define STRTOL_LONG_MIN LONG_MIN
+# define STRTOL_LONG_MAX LONG_MAX
+# define STRTOL_ULONG_MAX ULONG_MAX
+#endif
+
+
+/* We use this code also for the extended locale handling where the
+ function gets as an additional argument the locale which has to be
+ used. To access the values we have to redefine the _NL_CURRENT
+ macro. */
+#ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# undef _NL_CURRENT
+# define _NL_CURRENT(category, item) \
+ (current->values[_NL_ITEM_INDEX (item)].string)
+# define LOCALE_PARAM , loc
+# define LOCALE_PARAM_PROTO , __locale_t loc
+#else
+# define LOCALE_PARAM
+# define LOCALE_PARAM_PROTO
+#endif
+
+#if defined _LIBC || defined HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
+#ifdef USE_WIDE_CHAR
+# include <wctype.h>
+# define L_(Ch) L##Ch
+# define UCHAR_TYPE wint_t
+# define STRING_TYPE wchar_t
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# define ISSPACE(Ch) __iswspace_l ((Ch), loc)
+# define ISALPHA(Ch) __iswalpha_l ((Ch), loc)
+# define TOUPPER(Ch) __towupper_l ((Ch), loc)
+# else
+# define ISSPACE(Ch) iswspace (Ch)
+# define ISALPHA(Ch) iswalpha (Ch)
+# define TOUPPER(Ch) towupper (Ch)
+# endif
+#else
+# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
+# define IN_CTYPE_DOMAIN(c) 1
+# else
+# define IN_CTYPE_DOMAIN(c) isascii(c)
+# endif
+# define L_(Ch) Ch
+# define UCHAR_TYPE unsigned char
+# define STRING_TYPE char
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# define ISSPACE(Ch) __isspace_l ((Ch), loc)
+# define ISALPHA(Ch) __isalpha_l ((Ch), loc)
+# define TOUPPER(Ch) __toupper_l ((Ch), loc)
+# else
+# define ISSPACE(Ch) (IN_CTYPE_DOMAIN (Ch) && isspace (Ch))
+# define ISALPHA(Ch) (IN_CTYPE_DOMAIN (Ch) && isalpha (Ch))
+# define TOUPPER(Ch) (IN_CTYPE_DOMAIN (Ch) ? toupper (Ch) : (Ch))
+# endif
+#endif
+
+#define INTERNAL(X) INTERNAL1(X)
+#define INTERNAL1(X) __##X##_internal
+#define WEAKNAME(X) WEAKNAME1(X)
+
+#ifdef USE_NUMBER_GROUPING
+/* This file defines a function to check for correct grouping. */
+# include "grouping.h"
+#endif
+
+
+
+/* Convert NPTR to an `unsigned long int' or `long int' in base BASE.
+ If BASE is 0 the base is determined by the presence of a leading
+ zero, indicating octal or a leading "0x" or "0X", indicating hexadecimal.
+ If BASE is < 2 or > 36, it is reset to 10.
+ If ENDPTR is not NULL, a pointer to the character after the last
+ one converted is stored in *ENDPTR. */
+
+INT
+INTERNAL (strtol) (const STRING_TYPE *nptr, STRING_TYPE **endptr,
+ int base, int group LOCALE_PARAM_PROTO)
+{
+ int negative;
+ register unsigned LONG int cutoff;
+ register unsigned int cutlim;
+ register unsigned LONG int i;
+ register const STRING_TYPE *s;
+ register UCHAR_TYPE c;
+ const STRING_TYPE *save, *end;
+ int overflow;
+
+#ifdef USE_NUMBER_GROUPING
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+ struct locale_data *current = loc->__locales[LC_NUMERIC];
+# endif
+ /* The thousands character of the current locale. */
+ wchar_t thousands = L'\0';
+ /* The numeric grouping specification of the current locale,
+ in the format described in <locale.h>. */
+ const char *grouping;
+
+ if (group)
+ {
+ grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
+ if (*grouping <= 0 || *grouping == CHAR_MAX)
+ grouping = NULL;
+ else
+ {
+ /* Figure out the thousands separator character. */
+# if defined _LIBC || defined _HAVE_BTOWC
+ thousands = __btowc (*_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP));
+ if (thousands == WEOF)
+ thousands = L'\0';
+# endif
+ if (thousands == L'\0')
+ grouping = NULL;
+ }
+ }
+ else
+ grouping = NULL;
+#endif
+
+ if (base < 0 || base == 1 || base > 36)
+ {
+ __set_errno (EINVAL);
+ return 0;
+ }
+
+ save = s = nptr;
+
+ /* Skip white space. */
+ while (ISSPACE (*s))
+ ++s;
+ if (*s == L_('\0'))
+ goto noconv;
+
+ /* Check for a sign. */
+ if (*s == L_('-'))
+ {
+ negative = 1;
+ ++s;
+ }
+ else if (*s == L_('+'))
+ {
+ negative = 0;
+ ++s;
+ }
+ else
+ negative = 0;
+
+ /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
+ if (*s == L_('0'))
+ {
+ if ((base == 0 || base == 16) && TOUPPER (s[1]) == L_('X'))
+ {
+ s += 2;
+ base = 16;
+ }
+ else if (base == 0)
+ base = 8;
+ }
+ else if (base == 0)
+ base = 10;
+
+ /* Save the pointer so we can check later if anything happened. */
+ save = s;
+
+#ifdef USE_NUMBER_GROUPING
+ if (group)
+ {
+ /* Find the end of the digit string and check its grouping. */
+ end = s;
+ for (c = *end; c != L_('\0'); c = *++end)
+ if ((wchar_t) c != thousands
+ && ((wchar_t) c < L_('0') || (wchar_t) c > L_('9'))
+ && (!ISALPHA (c) || (int) (TOUPPER (c) - L_('A') + 10) >= base))
+ break;
+ if (*s == thousands)
+ end = s;
+ else
+ end = correctly_grouped_prefix (s, end, thousands, grouping);
+ }
+ else
+#endif
+ end = NULL;
+
+ cutoff = STRTOL_ULONG_MAX / (unsigned LONG int) base;
+ cutlim = STRTOL_ULONG_MAX % (unsigned LONG int) base;
+
+ overflow = 0;
+ i = 0;
+ for (c = *s; c != L_('\0'); c = *++s)
+ {
+ if (s == end)
+ break;
+ if (c >= L_('0') && c <= L_('9'))
+ c -= L_('0');
+ else if (ISALPHA (c))
+ c = TOUPPER (c) - L_('A') + 10;
+ else
+ break;
+ if ((int) c >= base)
+ break;
+ /* Check for overflow. */
+ if (i > cutoff || (i == cutoff && c > cutlim))
+ overflow = 1;
+ else
+ {
+ i *= (unsigned LONG int) base;
+ i += c;
+ }
+ }
+
+ /* Check if anything actually happened. */
+ if (s == save)
+ goto noconv;
+
+ /* Store in ENDPTR the address of one character
+ past the last character we converted. */
+ if (endptr != NULL)
+ *endptr = (STRING_TYPE *) s;
+
+#if !UNSIGNED
+ /* Check for a value that is within the range of
+ `unsigned LONG int', but outside the range of `LONG int'. */
+ if (overflow == 0
+ && i > (negative
+ ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1
+ : (unsigned LONG int) STRTOL_LONG_MAX))
+ overflow = 1;
+#endif
+
+ if (overflow)
+ {
+ __set_errno (ERANGE);
+#if UNSIGNED
+ return STRTOL_ULONG_MAX;
+#else
+ return negative ? STRTOL_LONG_MIN : STRTOL_LONG_MAX;
+#endif
+ }
+
+ /* Return the result of the appropriate sign. */
+ return negative ? -i : i;
+
+noconv:
+ /* We must handle a special case here: the base is 0 or 16 and the
+ first two characters are '0' and 'x', but the rest are no
+ hexadecimal digits. This is no error case. We return 0 and
+ ENDPTR points to the `x`. */
+ if (endptr != NULL)
+ {
+ if (save - nptr >= 2 && TOUPPER (save[-1]) == L_('X')
+ && save[-2] == L_('0'))
+ *endptr = (STRING_TYPE *) &save[-1];
+ else
+ /* There was no number to convert. */
+ *endptr = (STRING_TYPE *) nptr;
+ }
+
+ return 0L;
+}
+
+/* External user entry point. */
+
+
+INT
+#ifdef weak_function
+weak_function
+#endif
+strtol (const STRING_TYPE *nptr, STRING_TYPE **endptr,
+ int base LOCALE_PARAM_PROTO)
+{
+ return INTERNAL (strtol) (nptr, endptr, base, 0 LOCALE_PARAM);
+}
diff --git a/lib/strtoul.c b/lib/strtoul.c
new file mode 100644
index 0000000..79ceed2
--- /dev/null
+++ b/lib/strtoul.c
@@ -0,0 +1,20 @@
+/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#define UNSIGNED 1
+
+#include "strtol.c"
diff --git a/lib/strverscmp.c b/lib/strverscmp.c
new file mode 100644
index 0000000..6276bca
--- /dev/null
+++ b/lib/strverscmp.c
@@ -0,0 +1,131 @@
+/* Compare strings while treating digits characters numerically.
+ Copyright (C) 1997, 2000, 2002, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jean-François Bignolles <bignolle@ecoledoc.ibp.fr>, 1997.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+#include <ctype.h>
+
+/* states: S_N: normal, S_I: comparing integral part, S_F: comparing
+ fractional parts, S_Z: idem but with leading Zeroes only */
+#define S_N 0x0
+#define S_I 0x4
+#define S_F 0x8
+#define S_Z 0xC
+
+/* result_type: CMP: return diff; LEN: compare using len_diff/diff */
+#define CMP 2
+#define LEN 3
+
+
+/* ISDIGIT differs from isdigit, as follows:
+ - Its arg may be any int or unsigned int; it need not be an unsigned char.
+ - It's guaranteed to evaluate its argument exactly once.
+ - It's typically faster.
+ POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
+ ISDIGIT_LOCALE unless it's important to use the locale's definition
+ of `digit' even when the host does not conform to POSIX. */
+#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
+
+#undef __strverscmp
+#undef strverscmp
+
+#ifndef weak_alias
+# define __strverscmp strverscmp
+#endif
+
+/* Compare S1 and S2 as strings holding indices/version numbers,
+ returning less than, equal to or greater than zero if S1 is less than,
+ equal to or greater than S2 (for more info, see the texinfo doc).
+*/
+
+int
+__strverscmp (const char *s1, const char *s2)
+{
+ const unsigned char *p1 = (const unsigned char *) s1;
+ const unsigned char *p2 = (const unsigned char *) s2;
+ unsigned char c1, c2;
+ int state;
+ int diff;
+
+ /* Symbol(s) 0 [1-9] others (padding)
+ Transition (10) 0 (01) d (00) x (11) - */
+ static const unsigned int next_state[] =
+ {
+ /* state x d 0 - */
+ /* S_N */ S_N, S_I, S_Z, S_N,
+ /* S_I */ S_N, S_I, S_I, S_I,
+ /* S_F */ S_N, S_F, S_F, S_F,
+ /* S_Z */ S_N, S_F, S_Z, S_Z
+ };
+
+ static const int result_type[] =
+ {
+ /* state x/x x/d x/0 x/- d/x d/d d/0 d/-
+ 0/x 0/d 0/0 0/- -/x -/d -/0 -/- */
+
+ /* S_N */ CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
+ CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
+ /* S_I */ CMP, -1, -1, CMP, 1, LEN, LEN, CMP,
+ 1, LEN, LEN, CMP, CMP, CMP, CMP, CMP,
+ /* S_F */ CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
+ CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
+ /* S_Z */ CMP, 1, 1, CMP, -1, CMP, CMP, CMP,
+ -1, CMP, CMP, CMP
+ };
+
+ if (p1 == p2)
+ return 0;
+
+ c1 = *p1++;
+ c2 = *p2++;
+ /* Hint: '0' is a digit too. */
+ state = S_N | ((c1 == '0') + (ISDIGIT (c1) != 0));
+
+ while ((diff = c1 - c2) == 0 && c1 != '\0')
+ {
+ state = next_state[state];
+ c1 = *p1++;
+ c2 = *p2++;
+ state |= (c1 == '0') + (ISDIGIT (c1) != 0);
+ }
+
+ state = result_type[state << 2 | ((c2 == '0') + (ISDIGIT (c2) != 0))];
+
+ switch (state)
+ {
+ case CMP:
+ return diff;
+
+ case LEN:
+ while (ISDIGIT (*p1++))
+ if (!ISDIGIT (*p2++))
+ return 1;
+
+ return ISDIGIT (*p2) ? -1 : diff;
+
+ default:
+ return state;
+ }
+}
+#ifdef weak_alias
+weak_alias (__strverscmp, strverscmp)
+#endif
diff --git a/lib/strverscmp.h b/lib/strverscmp.h
new file mode 100644
index 0000000..7edeac5
--- /dev/null
+++ b/lib/strverscmp.h
@@ -0,0 +1,24 @@
+/* Compare strings while treating digits characters numerically.
+
+ Copyright (C) 1997, 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef STRVERSCMP_H_
+# define STRVERSCMP_H_
+
+int strverscmp (const char *, const char *);
+
+#endif /* not STRVERSCMP_H_ */
diff --git a/lib/subpipe.c b/lib/subpipe.c
new file mode 100644
index 0000000..646aa8e
--- /dev/null
+++ b/lib/subpipe.c
@@ -0,0 +1,186 @@
+/* Subprocesses with pipes.
+
+ Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert <eggert@twinsun.com>
+ and Florian Krohm <florian@edamail.fishkill.ibm.com>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "subpipe.h"
+
+#include <errno.h>
+
+#include <signal.h>
+#if ! defined SIGCHLD && defined SIGCLD
+# define SIGCHLD SIGCLD
+#endif
+
+#include <stdlib.h>
+
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifndef STDIN_FILENO
+# define STDIN_FILENO 0
+#endif
+#ifndef STDOUT_FILENO
+# define STDOUT_FILENO 1
+#endif
+#if ! HAVE_DUP2 && ! defined dup2
+# include <fcntl.h>
+# define dup2(f, t) (close (t), fcntl (f, F_DUPFD, t))
+#endif
+
+#if HAVE_SYS_WAIT_H
+# include <sys/wait.h>
+#endif
+#ifndef WEXITSTATUS
+# define WEXITSTATUS(stat_val) ((unsigned int) (stat_val) >> 8)
+#endif
+#ifndef WIFEXITED
+# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
+#endif
+
+#if HAVE_VFORK_H
+# include <vfork.h>
+#endif
+#if ! HAVE_WORKING_VFORK
+# define vfork fork
+#endif
+
+#include "error.h"
+#include "unistd-safer.h"
+
+#include "gettext.h"
+#define _(Msgid) gettext (Msgid)
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later. */
+# if ! defined __GNUC__ || __GNUC__ < 2 || \
+(__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+# define __attribute__(Spec) /* empty */
+# endif
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
+
+
+/* Initialize this module. */
+
+void
+init_subpipe (void)
+{
+#ifdef SIGCHLD
+ /* System V fork+wait does not work if SIGCHLD is ignored. */
+ signal (SIGCHLD, SIG_DFL);
+#endif
+}
+
+
+/* Create a subprocess that is run as a filter. ARGV is the
+ NULL-terminated argument vector for the subprocess. Store read and
+ write file descriptors for communication with the subprocess into
+ FD[0] and FD[1]: input meant for the process can be written into
+ FD[0], and output from the process can be read from FD[1]. Return
+ the subprocess id.
+
+ To avoid deadlock, the invoker must not let incoming data pile up
+ in FD[1] while writing data to FD[0]. */
+
+pid_t
+create_subpipe (char const * const *argv, int fd[2])
+{
+ int pipe_fd[2];
+ int child_fd[2];
+ pid_t pid;
+
+ if (pipe (child_fd) != 0
+ || (child_fd[0] = fd_safer (child_fd[0])) < 0
+ || (fd[0] = fd_safer (child_fd[1])) < 0
+ || pipe (pipe_fd) != 0
+ || (fd[1] = fd_safer (pipe_fd[0])) < 0
+ || (child_fd[1] = fd_safer (pipe_fd[1])) < 0)
+ error (EXIT_FAILURE, errno,
+ "pipe");
+
+ pid = vfork ();
+ if (pid < 0)
+ error (EXIT_FAILURE, errno,
+ "fork");
+
+ if (! pid)
+ {
+ /* Child. */
+ close (fd[0]);
+ close (fd[1]);
+ dup2 (child_fd[0], STDIN_FILENO);
+ close (child_fd[0]);
+ dup2 (child_fd[1], STDOUT_FILENO);
+ close (child_fd[1]);
+
+ /* The cast to (char **) rather than (char * const *) is needed
+ for portability to older hosts with a nonstandard prototype
+ for execvp. */
+ execvp (argv[0], (char **) argv);
+
+ _exit (errno == ENOENT ? 127 : 126);
+ }
+
+ /* Parent. */
+ close (child_fd[0]);
+ close (child_fd[1]);
+ return pid;
+}
+
+
+/* Wait for the subprocess to exit. */
+
+void
+reap_subpipe (pid_t pid, char const *program)
+{
+#if HAVE_WAITPID || defined waitpid
+ int wstatus;
+ if (waitpid (pid, &wstatus, 0) < 0)
+ error (EXIT_FAILURE, errno,
+ "waitpid");
+ else
+ {
+ int status = WIFEXITED (wstatus) ? WEXITSTATUS (wstatus) : -1;
+ if (status)
+ error (EXIT_FAILURE, 0,
+ _(status == 126
+ ? "subsidiary program `%s' could not be invoked"
+ : status == 127
+ ? "subsidiary program `%s' not found"
+ : status < 0
+ ? "subsidiary program `%s' failed"
+ : "subsidiary program `%s' failed (exit status %d)"),
+ program, status);
+ }
+#endif
+}
+
+void
+end_of_output_subpipe (pid_t pid ATTRIBUTE_UNUSED,
+ int fd[2] ATTRIBUTE_UNUSED)
+{
+}
diff --git a/lib/subpipe.h b/lib/subpipe.h
new file mode 100644
index 0000000..1083d32
--- /dev/null
+++ b/lib/subpipe.h
@@ -0,0 +1,28 @@
+/* Subprocesses with pipes.
+ Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert <eggert@twinsun.com>
+ and Florian Krohm <florian@edamail.fishkill.ibm.com>. */
+
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+void init_subpipe (void);
+pid_t create_subpipe (char const * const *, int[2]);
+void end_of_output_subpipe (pid_t, int[2]);
+void reap_subpipe (pid_t, char const *);
diff --git a/lib/timevar.c b/lib/timevar.c
new file mode 100644
index 0000000..d9b533c
--- /dev/null
+++ b/lib/timevar.c
@@ -0,0 +1,565 @@
+/* Timing variables for measuring compiler performance.
+ Copyright (C) 2000, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Contributed by Alex Samuel <samuel@codesourcery.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if IN_GCC
+
+#include "system.h"
+#include "intl.h"
+#include "rtl.h"
+
+#else
+
+/* This source file is taken from the GCC source code, with slight
+ modifications that are under control of the IN_GCC preprocessor
+ variable. The !IN_GCC part of this file is specific to Bison. */
+
+# include "../src/system.h"
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# endif
+int timevar_report = 0;
+
+#endif
+
+
+#ifdef HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+
+#ifndef HAVE_CLOCK_T
+typedef int clock_t;
+#endif
+
+#ifndef HAVE_STRUCT_TMS
+struct tms
+{
+ clock_t tms_utime;
+ clock_t tms_stime;
+ clock_t tms_cutime;
+ clock_t tms_cstime;
+};
+#endif
+
+#if defined HAVE_DECL_GETRUSAGE && !HAVE_DECL_GETRUSAGE
+extern int getrusage (int, struct rusage *);
+#endif
+#if defined HAVE_DECL_TIMES && !HAVE_DECL_TIMES
+extern clock_t times (struct tms *);
+#endif
+#if defined HAVE_DECL_CLOCK && !HAVE_DECL_CLOCK
+extern clock_t clock (void);
+#endif
+
+#ifndef RUSAGE_SELF
+# define RUSAGE_SELF 0
+#endif
+
+/* Calculation of scale factor to convert ticks to microseconds.
+ We mustn't use CLOCKS_PER_SEC except with clock(). */
+#if HAVE_SYSCONF && defined _SC_CLK_TCK
+# define TICKS_PER_SECOND sysconf (_SC_CLK_TCK) /* POSIX 1003.1-1996 */
+#else
+# ifdef CLK_TCK
+# define TICKS_PER_SECOND CLK_TCK /* POSIX 1003.1-1988; obsolescent */
+# else
+# ifdef HZ
+# define TICKS_PER_SECOND HZ /* traditional UNIX */
+# else
+# define TICKS_PER_SECOND 100 /* often the correct value */
+# endif
+# endif
+#endif
+
+/* Prefer times to getrusage to clock (each gives successively less
+ information). */
+#ifdef HAVE_TIMES
+# define USE_TIMES
+# define HAVE_USER_TIME
+# define HAVE_SYS_TIME
+# define HAVE_WALL_TIME
+#else
+#ifdef HAVE_GETRUSAGE
+# define USE_GETRUSAGE
+# define HAVE_USER_TIME
+# define HAVE_SYS_TIME
+#else
+#ifdef HAVE_CLOCK
+# define USE_CLOCK
+# define HAVE_USER_TIME
+#endif
+#endif
+#endif
+
+/* libc is very likely to have snuck a call to sysconf() into one of
+ the underlying constants, and that can be very slow, so we have to
+ precompute them. Whose wonderful idea was it to make all those
+ _constants_ variable at run time, anyway? */
+#ifdef USE_TIMES
+static float ticks_to_msec;
+#define TICKS_TO_MSEC (1.0 / TICKS_PER_SECOND)
+#endif
+
+#ifdef USE_CLOCK
+static float clocks_to_msec;
+#define CLOCKS_TO_MSEC (1.0 / CLOCKS_PER_SEC)
+#endif
+
+#if IN_GCC
+#include "flags.h"
+#endif
+#include "timevar.h"
+
+/* See timevar.h for an explanation of timing variables. */
+
+/* This macro evaluates to nonzero if timing variables are enabled. */
+#define TIMEVAR_ENABLE (timevar_report)
+
+/* A timing variable. */
+
+struct timevar_def
+{
+ /* Elapsed time for this variable. */
+ struct timevar_time_def elapsed;
+
+ /* If this variable is timed independently of the timing stack,
+ using timevar_start, this contains the start time. */
+ struct timevar_time_def start_time;
+
+ /* The name of this timing variable. */
+ const char *name;
+
+ /* Non-zero if this timing variable is running as a standalone
+ timer. */
+ unsigned standalone : 1;
+
+ /* Non-zero if this timing variable was ever started or pushed onto
+ the timing stack. */
+ unsigned used : 1;
+};
+
+/* An element on the timing stack. Elapsed time is attributed to the
+ topmost timing variable on the stack. */
+
+struct timevar_stack_def
+{
+ /* The timing variable at this stack level. */
+ struct timevar_def *timevar;
+
+ /* The next lower timing variable context in the stack. */
+ struct timevar_stack_def *next;
+};
+
+/* Declared timing variables. Constructed from the contents of
+ timevar.def. */
+static struct timevar_def timevars[TIMEVAR_LAST];
+
+/* The top of the timing stack. */
+static struct timevar_stack_def *stack;
+
+/* A list of unused (i.e. allocated and subsequently popped)
+ timevar_stack_def instances. */
+static struct timevar_stack_def *unused_stack_instances;
+
+/* The time at which the topmost element on the timing stack was
+ pushed. Time elapsed since then is attributed to the topmost
+ element. */
+static struct timevar_time_def start_time;
+
+static void get_time (struct timevar_time_def *);
+static void timevar_accumulate (struct timevar_time_def *,
+ struct timevar_time_def *,
+ struct timevar_time_def *);
+
+/* Fill the current times into TIME. The definition of this function
+ also defines any or all of the HAVE_USER_TIME, HAVE_SYS_TIME, and
+ HAVE_WALL_TIME macros. */
+
+static void
+get_time (now)
+ struct timevar_time_def *now;
+{
+ now->user = 0;
+ now->sys = 0;
+ now->wall = 0;
+
+ if (!TIMEVAR_ENABLE)
+ return;
+
+ {
+#ifdef USE_TIMES
+ struct tms tms;
+ now->wall = times (&tms) * ticks_to_msec;
+#if IN_GCC
+ now->user = tms.tms_utime * ticks_to_msec;
+ now->sys = tms.tms_stime * ticks_to_msec;
+#else
+ now->user = (tms.tms_utime + tms.tms_cutime) * ticks_to_msec;
+ now->sys = (tms.tms_stime + tms.tms_cstime) * ticks_to_msec;
+#endif
+#endif
+#ifdef USE_GETRUSAGE
+ struct rusage rusage;
+#if IN_GCC
+ getrusage (RUSAGE_SELF, &rusage);
+#else
+ getrusage (RUSAGE_CHILDREN, &rusage);
+#endif
+ now->user = rusage.ru_utime.tv_sec + rusage.ru_utime.tv_usec * 1e-6;
+ now->sys = rusage.ru_stime.tv_sec + rusage.ru_stime.tv_usec * 1e-6;
+#endif
+#ifdef USE_CLOCK
+ now->user = clock () * clocks_to_msec;
+#endif
+ }
+}
+
+/* Add the difference between STOP and START to TIMER. */
+
+static void
+timevar_accumulate (timer, start, stop)
+ struct timevar_time_def *timer;
+ struct timevar_time_def *start;
+ struct timevar_time_def *stop;
+{
+ timer->user += stop->user - start->user;
+ timer->sys += stop->sys - start->sys;
+ timer->wall += stop->wall - start->wall;
+}
+
+/* Initialize timing variables. */
+
+void
+init_timevar ()
+{
+ if (!TIMEVAR_ENABLE)
+ return;
+
+ /* Zero all elapsed times. */
+ memset ((void *) timevars, 0, sizeof (timevars));
+
+ /* Initialize the names of timing variables. */
+#define DEFTIMEVAR(identifier__, name__) \
+ timevars[identifier__].name = name__;
+#include "timevar.def"
+#undef DEFTIMEVAR
+
+#ifdef USE_TIMES
+ ticks_to_msec = TICKS_TO_MSEC;
+#endif
+#ifdef USE_CLOCK
+ clocks_to_msec = CLOCKS_TO_MSEC;
+#endif
+}
+
+/* Push TIMEVAR onto the timing stack. No further elapsed time is
+ attributed to the previous topmost timing variable on the stack;
+ subsequent elapsed time is attributed to TIMEVAR, until it is
+ popped or another element is pushed on top.
+
+ TIMEVAR cannot be running as a standalone timer. */
+
+void
+timevar_push (timevar)
+ timevar_id_t timevar;
+{
+ struct timevar_def *tv = &timevars[timevar];
+ struct timevar_stack_def *context;
+ struct timevar_time_def now;
+
+ if (!TIMEVAR_ENABLE)
+ return;
+
+ /* Mark this timing variable as used. */
+ tv->used = 1;
+
+ /* Can't push a standalone timer. */
+ if (tv->standalone)
+ abort ();
+
+ /* What time is it? */
+ get_time (&now);
+
+ /* If the stack isn't empty, attribute the current elapsed time to
+ the old topmost element. */
+ if (stack)
+ timevar_accumulate (&stack->timevar->elapsed, &start_time, &now);
+
+ /* Reset the start time; from now on, time is attributed to
+ TIMEVAR. */
+ start_time = now;
+
+ /* See if we have a previously-allocated stack instance. If so,
+ take it off the list. If not, malloc a new one. */
+ if (unused_stack_instances != NULL)
+ {
+ context = unused_stack_instances;
+ unused_stack_instances = unused_stack_instances->next;
+ }
+ else
+ context = (struct timevar_stack_def *)
+ xmalloc (sizeof (struct timevar_stack_def));
+
+ /* Fill it in and put it on the stack. */
+ context->timevar = tv;
+ context->next = stack;
+ stack = context;
+}
+
+/* Pop the topmost timing variable element off the timing stack. The
+ popped variable must be TIMEVAR. Elapsed time since the that
+ element was pushed on, or since it was last exposed on top of the
+ stack when the element above it was popped off, is credited to that
+ timing variable. */
+
+void
+timevar_pop (timevar)
+ timevar_id_t timevar;
+{
+ struct timevar_time_def now;
+ struct timevar_stack_def *popped = stack;
+
+ if (!TIMEVAR_ENABLE)
+ return;
+
+ if (&timevars[timevar] != stack->timevar)
+ abort ();
+
+ /* What time is it? */
+ get_time (&now);
+
+ /* Attribute the elapsed time to the element we're popping. */
+ timevar_accumulate (&popped->timevar->elapsed, &start_time, &now);
+
+ /* Reset the start time; from now on, time is attributed to the
+ element just exposed on the stack. */
+ start_time = now;
+
+ /* Take the item off the stack. */
+ stack = stack->next;
+
+ /* Don't delete the stack element; instead, add it to the list of
+ unused elements for later use. */
+ popped->next = unused_stack_instances;
+ unused_stack_instances = popped;
+}
+
+/* Start timing TIMEVAR independently of the timing stack. Elapsed
+ time until timevar_stop is called for the same timing variable is
+ attributed to TIMEVAR. */
+
+void
+timevar_start (timevar)
+ timevar_id_t timevar;
+{
+ struct timevar_def *tv = &timevars[timevar];
+
+ if (!TIMEVAR_ENABLE)
+ return;
+
+ /* Mark this timing variable as used. */
+ tv->used = 1;
+
+ /* Don't allow the same timing variable to be started more than
+ once. */
+ if (tv->standalone)
+ abort ();
+ tv->standalone = 1;
+
+ get_time (&tv->start_time);
+}
+
+/* Stop timing TIMEVAR. Time elapsed since timevar_start was called
+ is attributed to it. */
+
+void
+timevar_stop (timevar)
+ timevar_id_t timevar;
+{
+ struct timevar_def *tv = &timevars[timevar];
+ struct timevar_time_def now;
+
+ if (!TIMEVAR_ENABLE)
+ return;
+
+ /* TIMEVAR must have been started via timevar_start. */
+ if (!tv->standalone)
+ abort ();
+
+ get_time (&now);
+ timevar_accumulate (&tv->elapsed, &tv->start_time, &now);
+}
+
+/* Fill the elapsed time for TIMEVAR into ELAPSED. Returns
+ update-to-date information even if TIMEVAR is currently running. */
+
+void
+timevar_get (timevar, elapsed)
+ timevar_id_t timevar;
+ struct timevar_time_def *elapsed;
+{
+ struct timevar_def *tv = &timevars[timevar];
+ struct timevar_time_def now;
+
+ *elapsed = tv->elapsed;
+
+ /* Is TIMEVAR currently running as a standalone timer? */
+ if (tv->standalone)
+ {
+ get_time (&now);
+ timevar_accumulate (elapsed, &tv->start_time, &now);
+ }
+ /* Or is TIMEVAR at the top of the timer stack? */
+ else if (stack->timevar == tv)
+ {
+ get_time (&now);
+ timevar_accumulate (elapsed, &start_time, &now);
+ }
+}
+
+/* Summarize timing variables to FP. The timing variable TV_TOTAL has
+ a special meaning -- it's considered to be the total elapsed time,
+ for normalizing the others, and is displayed last. */
+
+void
+timevar_print (fp)
+ FILE *fp;
+{
+ /* Only print stuff if we have some sort of time information. */
+#if defined HAVE_USER_TIME || defined HAVE_SYS_TIME || defined HAVE_WALL_TIME
+ unsigned int /* timevar_id_t */ id;
+ struct timevar_time_def *total = &timevars[TV_TOTAL].elapsed;
+ struct timevar_time_def now;
+
+ if (!TIMEVAR_ENABLE)
+ return;
+
+ /* Update timing information in case we're calling this from GDB. */
+
+ if (fp == 0)
+ fp = stderr;
+
+ /* What time is it? */
+ get_time (&now);
+
+ /* If the stack isn't empty, attribute the current elapsed time to
+ the old topmost element. */
+ if (stack)
+ timevar_accumulate (&stack->timevar->elapsed, &start_time, &now);
+
+ /* Reset the start time; from now on, time is attributed to
+ TIMEVAR. */
+ start_time = now;
+
+ fputs (_("\nExecution times (seconds)\n"), fp);
+ for (id = 0; id < (unsigned int) TIMEVAR_LAST; ++id)
+ {
+ struct timevar_def *tv = &timevars[(timevar_id_t) id];
+ const float tiny = 5e-3;
+
+ /* Don't print the total execution time here; that goes at the
+ end. */
+ if ((timevar_id_t) id == TV_TOTAL)
+ continue;
+
+ /* Don't print timing variables that were never used. */
+ if (!tv->used)
+ continue;
+
+ /* Don't print timing variables if we're going to get a row of
+ zeroes. */
+ if (tv->elapsed.user < tiny
+ && tv->elapsed.sys < tiny
+ && tv->elapsed.wall < tiny)
+ continue;
+
+ /* The timing variable name. */
+ fprintf (fp, " %-22s:", tv->name);
+
+#ifdef HAVE_USER_TIME
+ /* Print user-mode time for this process. */
+ fprintf (fp, "%7.2f (%2.0f%%) usr",
+ tv->elapsed.user,
+ (total->user == 0 ? 0 : tv->elapsed.user / total->user) * 100);
+#endif /* HAVE_USER_TIME */
+
+#ifdef HAVE_SYS_TIME
+ /* Print system-mode time for this process. */
+ fprintf (fp, "%7.2f (%2.0f%%) sys",
+ tv->elapsed.sys,
+ (total->sys == 0 ? 0 : tv->elapsed.sys / total->sys) * 100);
+#endif /* HAVE_SYS_TIME */
+
+#ifdef HAVE_WALL_TIME
+ /* Print wall clock time elapsed. */
+ fprintf (fp, "%7.2f (%2.0f%%) wall",
+ tv->elapsed.wall,
+ (total->wall == 0 ? 0 : tv->elapsed.wall / total->wall) * 100);
+#endif /* HAVE_WALL_TIME */
+
+ putc ('\n', fp);
+ }
+
+ /* Print total time. */
+ fputs (_(" TOTAL :"), fp);
+#ifdef HAVE_USER_TIME
+ fprintf (fp, "%7.2f ", total->user);
+#endif
+#ifdef HAVE_SYS_TIME
+ fprintf (fp, "%7.2f ", total->sys);
+#endif
+#ifdef HAVE_WALL_TIME
+ fprintf (fp, "%7.2f\n", total->wall);
+#endif
+
+#endif /* defined (HAVE_USER_TIME) || defined (HAVE_SYS_TIME)
+ || defined (HAVE_WALL_TIME) */
+}
+
+/* Returns time (user + system) used so far by the compiler process,
+ in microseconds. */
+
+long
+get_run_time ()
+{
+ struct timevar_time_def total_elapsed;
+ timevar_get (TV_TOTAL, &total_elapsed);
+ return total_elapsed.user + total_elapsed.sys;
+}
+
+/* Prints a message to stderr stating that time elapsed in STR is
+ TOTAL (given in microseconds). */
+
+void
+print_time (str, total)
+ const char *str;
+ long total;
+{
+ long all_time = get_run_time ();
+ fprintf (stderr,
+ _("time in %s: %ld.%06ld (%ld%%)\n"),
+ str, total / 1000000, total % 1000000,
+ all_time == 0 ? 0
+ : (long) (((100.0 * (double) total) / (double) all_time) + .5));
+}
diff --git a/lib/timevar.def b/lib/timevar.def
new file mode 100644
index 0000000..04ac392
--- /dev/null
+++ b/lib/timevar.def
@@ -0,0 +1,56 @@
+/* This file contains the definitions for timing variables used to -*- C -*-
+ measure run-time performance of the compiler.
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ Contributed by Akim Demaille <akim@freefriends.org>.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+/* This file contains timing variable definitions, used by timevar.h
+ and timevar.c.
+
+ Syntax:
+
+ DEFTIMEVAR (id, name)
+
+ where ID is the enumeral value used to identify the timing
+ variable, and NAME is a character string describing its purpose. */
+
+/* The total execution time. */
+DEFTIMEVAR (TV_TOTAL , "total time")
+
+/* Time spent in the reader. */
+DEFTIMEVAR (TV_READER , "reader")
+DEFTIMEVAR (TV_SCANNING , "scanner")
+DEFTIMEVAR (TV_PARSING , "parser")
+
+/* Time spent handling the grammar. */
+DEFTIMEVAR (TV_REDUCE , "reducing the grammar")
+DEFTIMEVAR (TV_SETS , "computing the sets")
+DEFTIMEVAR (TV_LR0 , "LR(0)")
+DEFTIMEVAR (TV_LALR , "LALR(1)")
+DEFTIMEVAR (TV_CONFLICTS , "conflicts")
+
+/* Time spent outputing results. */
+DEFTIMEVAR (TV_REPORT , "outputing report")
+DEFTIMEVAR (TV_GRAPH , "outputing graph")
+DEFTIMEVAR (TV_ACTIONS , "parser action tables")
+DEFTIMEVAR (TV_PARSER , "outputing parser")
+DEFTIMEVAR (TV_M4 , "running m4")
+
+/* Time spent by freeing the memory :). */
+DEFTIMEVAR (TV_FREE , "freeing")
diff --git a/lib/timevar.h b/lib/timevar.h
new file mode 100644
index 0000000..bbeb402
--- /dev/null
+++ b/lib/timevar.h
@@ -0,0 +1,90 @@
+/* Timing variables for measuring compiler performance.
+ Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
+ Contributed by Alex Samuel <samuel@codesourcery.com>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef GCC_TIMEVAR_H
+#define GCC_TIMEVAR_H
+
+/* Timing variables are used to measure elapsed time in various
+ portions of the compiler. Each measures elapsed user, system, and
+ wall-clock time, as appropriate to and supported by the host
+ system.
+
+ Timing variables are defined using the DEFTIMEVAR macro in
+ timevar.def. Each has an enumeral identifier, used when referring
+ to the timing variable in code, and a character string name.
+
+ Timing variables can be used in two ways:
+
+ - On the timing stack, using timevar_push and timevar_pop.
+ Timing variables may be pushed onto the stack; elapsed time is
+ attributed to the topmost timing variable on the stack. When
+ another variable is pushed on, the previous topmost variable is
+ `paused' until the pushed variable is popped back off.
+
+ - As a standalone timer, using timevar_start and timevar_stop.
+ All time elapsed between the two calls is attributed to the
+ variable.
+*/
+
+/* This structure stores the various varieties of time that can be
+ measured. Times are stored in seconds. The time may be an
+ absolute time or a time difference; in the former case, the time
+ base is undefined, except that the difference between two times
+ produces a valid time difference. */
+
+struct timevar_time_def
+{
+ /* User time in this process. */
+ float user;
+
+ /* System time (if applicable for this host platform) in this
+ process. */
+ float sys;
+
+ /* Wall clock time. */
+ float wall;
+};
+
+/* An enumeration of timing variable identifiers. Constructed from
+ the contents of timevar.def. */
+
+#define DEFTIMEVAR(identifier__, name__) \
+ identifier__,
+typedef enum
+{
+#include "timevar.def"
+ TIMEVAR_LAST
+}
+timevar_id_t;
+#undef DEFTIMEVAR
+
+extern void init_timevar (void);
+extern void timevar_push (timevar_id_t);
+extern void timevar_pop (timevar_id_t);
+extern void timevar_start (timevar_id_t);
+extern void timevar_stop (timevar_id_t);
+extern void timevar_get (timevar_id_t, struct timevar_time_def *);
+extern void timevar_print (FILE *);
+
+/* Provided for backward compatibility. */
+extern long get_run_time (void);
+extern void print_time (const char *, long);
+
+extern int timevar_report;
+
+#endif /* ! GCC_TIMEVAR_H */
diff --git a/lib/unistd--.h b/lib/unistd--.h
new file mode 100644
index 0000000..1fe6ce8
--- /dev/null
+++ b/lib/unistd--.h
@@ -0,0 +1,28 @@
+/* Like unistd.h, but redefine some names to avoid glitches.
+
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+#include <unistd.h>
+#include "unistd-safer.h"
+
+#undef dup
+#define dup dup_safer
+
+#undef pipe
+#define pipe pipe_safer
diff --git a/lib/unistd-safer.h b/lib/unistd-safer.h
new file mode 100644
index 0000000..f95999d
--- /dev/null
+++ b/lib/unistd-safer.h
@@ -0,0 +1,23 @@
+/* Invoke unistd-like functions, but avoid some glitches.
+
+ Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert. */
+
+int dup_safer (int);
+int fd_safer (int);
+int pipe_safer (int[2]);
diff --git a/lib/unlocked-io.h b/lib/unlocked-io.h
new file mode 100644
index 0000000..d009303
--- /dev/null
+++ b/lib/unlocked-io.h
@@ -0,0 +1,137 @@
+/* Prefer faster, non-thread-safe stdio functions if available.
+
+ Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Jim Meyering. */
+
+#ifndef UNLOCKED_IO_H
+# define UNLOCKED_IO_H 1
+
+/* These are wrappers for functions/macros from the GNU C library, and
+ from other C libraries supporting POSIX's optional thread-safe functions.
+
+ The standard I/O functions are thread-safe. These *_unlocked ones are
+ more efficient but not thread-safe. That they're not thread-safe is
+ fine since all of the applications in this package are single threaded.
+
+ Also, some code that is shared with the GNU C library may invoke
+ the *_unlocked functions directly. On hosts that lack those
+ functions, invoke the non-thread-safe versions instead. */
+
+# include <stdio.h>
+
+# if HAVE_DECL_CLEARERR_UNLOCKED
+# undef clearerr
+# define clearerr(x) clearerr_unlocked (x)
+# else
+# define clearerr_unlocked(x) clearerr (x)
+# endif
+
+# if HAVE_DECL_FEOF_UNLOCKED
+# undef feof
+# define feof(x) feof_unlocked (x)
+# else
+# define feof_unlocked(x) feof (x)
+# endif
+
+# if HAVE_DECL_FERROR_UNLOCKED
+# undef ferror
+# define ferror(x) ferror_unlocked (x)
+# else
+# define ferror_unlocked(x) ferror (x)
+# endif
+
+# if HAVE_DECL_FFLUSH_UNLOCKED
+# undef fflush
+# define fflush(x) fflush_unlocked (x)
+# else
+# define fflush_unlocked(x) fflush (x)
+# endif
+
+# if HAVE_DECL_FGETS_UNLOCKED
+# undef fgets
+# define fgets(x,y,z) fgets_unlocked (x,y,z)
+# else
+# define fgets_unlocked(x,y,z) fgets (x,y,z)
+# endif
+
+# if HAVE_DECL_FPUTC_UNLOCKED
+# undef fputc
+# define fputc(x,y) fputc_unlocked (x,y)
+# else
+# define fputc_unlocked(x,y) fputc (x,y)
+# endif
+
+# if HAVE_DECL_FPUTS_UNLOCKED
+# undef fputs
+# define fputs(x,y) fputs_unlocked (x,y)
+# else
+# define fputs_unlocked(x,y) fputs (x,y)
+# endif
+
+# if HAVE_DECL_FREAD_UNLOCKED
+# undef fread
+# define fread(w,x,y,z) fread_unlocked (w,x,y,z)
+# else
+# define fread_unlocked(w,x,y,z) fread (w,x,y,z)
+# endif
+
+# if HAVE_DECL_FWRITE_UNLOCKED
+# undef fwrite
+# define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z)
+# else
+# define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
+# endif
+
+# if HAVE_DECL_GETC_UNLOCKED
+# undef getc
+# define getc(x) getc_unlocked (x)
+# else
+# define getc_unlocked(x) getc (x)
+# endif
+
+# if HAVE_DECL_GETCHAR_UNLOCKED
+# undef getchar
+# define getchar() getchar_unlocked ()
+# else
+# define getchar_unlocked() getchar ()
+# endif
+
+# if HAVE_DECL_PUTC_UNLOCKED
+# undef putc
+# define putc(x,y) putc_unlocked (x,y)
+# else
+# define putc_unlocked(x,y) putc (x,y)
+# endif
+
+# if HAVE_DECL_PUTCHAR_UNLOCKED
+# undef putchar
+# define putchar(x) putchar_unlocked (x)
+# else
+# define putchar_unlocked(x) putchar (x)
+# endif
+
+# undef flockfile
+# define flockfile(x) ((void) 0)
+
+# undef ftrylockfile
+# define ftrylockfile(x) 0
+
+# undef funlockfile
+# define funlockfile(x) ((void) 0)
+
+#endif /* UNLOCKED_IO_H */
diff --git a/lib/vbitset.c b/lib/vbitset.c
new file mode 100644
index 0000000..d0fe30f
--- /dev/null
+++ b/lib/vbitset.c
@@ -0,0 +1,1140 @@
+/* Variable array bitsets.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "vbitset.h"
+#include <stdlib.h>
+#include <string.h>
+
+/* This file implements variable size bitsets stored as a variable
+ length array of words. Any unused bits in the last word must be
+ zero.
+
+ Note that binary or ternary operations assume that each bitset operand
+ has the same size.
+*/
+
+static void vbitset_unused_clear (bitset);
+
+static void vbitset_set (bitset, bitset_bindex);
+static void vbitset_reset (bitset, bitset_bindex);
+static bool vbitset_test (bitset, bitset_bindex);
+static bitset_bindex vbitset_list (bitset, bitset_bindex *,
+ bitset_bindex, bitset_bindex *);
+static bitset_bindex vbitset_list_reverse (bitset, bitset_bindex *,
+ bitset_bindex, bitset_bindex *);
+
+#define VBITSET_N_WORDS(N) (((N) + BITSET_WORD_BITS - 1) / BITSET_WORD_BITS)
+#define VBITSET_WORDS(X) ((X)->b.cdata)
+#define VBITSET_SIZE(X) ((X)->b.csize)
+#define VBITSET_ASIZE(X) ((X)->v.size)
+
+#undef min
+#undef max
+#define min(a, b) ((a) > (b) ? (b) : (a))
+#define max(a, b) ((a) > (b) ? (a) : (b))
+
+static bitset_bindex
+vbitset_resize (bitset src, bitset_bindex n_bits)
+{
+ bitset_windex oldsize;
+ bitset_windex newsize;
+
+ if (n_bits == BITSET_NBITS_ (src))
+ return n_bits;
+
+ oldsize = VBITSET_SIZE (src);
+ newsize = VBITSET_N_WORDS (n_bits);
+
+ if (oldsize < newsize)
+ {
+ bitset_windex size;
+
+ /* The bitset needs to grow. If we already have enough memory
+ allocated, then just zero what we need. */
+ if (newsize > VBITSET_ASIZE (src))
+ {
+ /* We need to allocate more memory. When oldsize is
+ non-zero this means that we are changing the size, so
+ grow the bitset 25% larger than requested to reduce
+ number of reallocations. */
+
+ if (oldsize == 0)
+ size = newsize;
+ else
+ size = newsize + newsize / 4;
+
+ VBITSET_WORDS (src)
+ = realloc (VBITSET_WORDS (src), size * sizeof (bitset_word));
+ VBITSET_ASIZE (src) = size;
+ }
+
+ memset (VBITSET_WORDS (src) + oldsize, 0,
+ (newsize - oldsize) * sizeof (bitset_word));
+ VBITSET_SIZE (src) = newsize;
+ }
+ else
+ {
+ /* The bitset needs to shrink. There's no point deallocating
+ the memory unless it is shrinking by a reasonable amount. */
+ if ((oldsize - newsize) >= oldsize / 2)
+ {
+ VBITSET_WORDS (src)
+ = realloc (VBITSET_WORDS (src), newsize * sizeof (bitset_word));
+ VBITSET_ASIZE (src) = newsize;
+ }
+
+ /* Need to prune any excess bits. FIXME. */
+
+ VBITSET_SIZE (src) = newsize;
+ }
+
+ BITSET_NBITS_ (src) = n_bits;
+ return n_bits;
+}
+
+
+/* Set bit BITNO in bitset DST. */
+static void
+vbitset_set (dst, bitno)
+ bitset dst;
+ bitset_bindex bitno;
+{
+ bitset_windex windex = bitno / BITSET_WORD_BITS;
+
+ /* Perhaps we should abort. The user should explicitly call
+ bitset_resize since this will not catch the case when we set a
+ bit larger than the current size but smaller than the allocated
+ size. */
+ vbitset_resize (dst, bitno);
+
+ dst->b.cdata[windex - dst->b.cindex] |=
+ (bitset_word) 1 << (bitno % BITSET_WORD_BITS);
+}
+
+
+/* Reset bit BITNO in bitset DST. */
+static void
+vbitset_reset (dst, bitno)
+ bitset dst ATTRIBUTE_UNUSED;
+ bitset_bindex bitno ATTRIBUTE_UNUSED;
+{
+ /* We must be accessing outside the cache so the bit is
+ zero anyway. */
+}
+
+
+/* Test bit BITNO in bitset SRC. */
+static bool
+vbitset_test (src, bitno)
+ bitset src ATTRIBUTE_UNUSED;
+ bitset_bindex bitno ATTRIBUTE_UNUSED;
+{
+ /* We must be accessing outside the cache so the bit is
+ zero anyway. */
+ return 0;
+}
+
+
+/* Find list of up to NUM bits set in BSET in reverse order, starting
+ from and including NEXT and store in array LIST. Return with
+ actual number of bits found and with *NEXT indicating where search
+ stopped. */
+static bitset_bindex
+vbitset_list_reverse (src, list, num, next)
+ bitset src;
+ bitset_bindex *list;
+ bitset_bindex num;
+ bitset_bindex *next;
+{
+ bitset_bindex bitno;
+ bitset_bindex rbitno;
+ bitset_bindex count;
+ bitset_windex windex;
+ unsigned int bitcnt;
+ bitset_bindex bitoff;
+ bitset_word *srcp = VBITSET_WORDS (src);
+ bitset_bindex n_bits = BITSET_SIZE_ (src);
+
+ rbitno = *next;
+
+ /* If num is 1, we could speed things up with a binary search
+ of the word of interest. */
+
+ if (rbitno >= n_bits)
+ return 0;
+
+ count = 0;
+
+ bitno = n_bits - (rbitno + 1);
+
+ windex = bitno / BITSET_WORD_BITS;
+ bitcnt = bitno % BITSET_WORD_BITS;
+ bitoff = windex * BITSET_WORD_BITS;
+
+ do
+ {
+ bitset_word word;
+
+ word = srcp[windex] << (BITSET_WORD_BITS - 1 - bitcnt);
+ for (; word; bitcnt--)
+ {
+ if (word & BITSET_MSB)
+ {
+ list[count++] = bitoff + bitcnt;
+ if (count >= num)
+ {
+ *next = n_bits - (bitoff + bitcnt);
+ return count;
+ }
+ }
+ word <<= 1;
+ }
+ bitoff -= BITSET_WORD_BITS;
+ bitcnt = BITSET_WORD_BITS - 1;
+ }
+ while (windex--);
+
+ *next = n_bits - (bitoff + 1);
+ return count;
+}
+
+
+/* Find list of up to NUM bits set in BSET starting from and including
+ *NEXT and store in array LIST. Return with actual number of bits
+ found and with *NEXT indicating where search stopped. */
+static bitset_bindex
+vbitset_list (src, list, num, next)
+ bitset src;
+ bitset_bindex *list;
+ bitset_bindex num;
+ bitset_bindex *next;
+{
+ bitset_bindex bitno;
+ bitset_bindex count;
+ bitset_windex windex;
+ bitset_bindex bitoff;
+ bitset_windex size = VBITSET_SIZE (src);
+ bitset_word *srcp = VBITSET_WORDS (src);
+ bitset_word word;
+
+ bitno = *next;
+
+ count = 0;
+ if (!bitno)
+ {
+ /* Many bitsets are zero, so make this common case fast. */
+ for (windex = 0; windex < size && !srcp[windex]; windex++)
+ continue;
+ if (windex >= size)
+ return 0;
+
+ /* If num is 1, we could speed things up with a binary search
+ of the current word. */
+
+ bitoff = windex * BITSET_WORD_BITS;
+ }
+ else
+ {
+ if (bitno >= BITSET_SIZE_ (src))
+ return 0;
+
+ windex = bitno / BITSET_WORD_BITS;
+ bitno = bitno % BITSET_WORD_BITS;
+
+ if (bitno)
+ {
+ /* Handle the case where we start within a word.
+ Most often, this is executed with large bitsets
+ with many set bits where we filled the array
+ on the previous call to this function. */
+
+ bitoff = windex * BITSET_WORD_BITS;
+ word = srcp[windex] >> bitno;
+ for (bitno = bitoff + bitno; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ windex++;
+ }
+ bitoff = windex * BITSET_WORD_BITS;
+ }
+
+ for (; windex < size; windex++, bitoff += BITSET_WORD_BITS)
+ {
+ if (!(word = srcp[windex]))
+ continue;
+
+ if ((count + BITSET_WORD_BITS) < num)
+ {
+ for (bitno = bitoff; word; bitno++)
+ {
+ if (word & 1)
+ list[count++] = bitno;
+ word >>= 1;
+ }
+ }
+ else
+ {
+ for (bitno = bitoff; word; bitno++)
+ {
+ if (word & 1)
+ {
+ list[count++] = bitno;
+ if (count >= num)
+ {
+ *next = bitno + 1;
+ return count;
+ }
+ }
+ word >>= 1;
+ }
+ }
+ }
+
+ *next = bitoff;
+ return count;
+}
+
+
+/* Ensure that any unused bits within the last word are clear. */
+static inline void
+vbitset_unused_clear (dst)
+ bitset dst;
+{
+ unsigned int last_bit;
+
+ last_bit = BITSET_SIZE_ (dst) % BITSET_WORD_BITS;
+ if (last_bit)
+ VBITSET_WORDS (dst)[VBITSET_SIZE (dst) - 1] &=
+ ((bitset_word) 1 << last_bit) - 1;
+}
+
+
+static void
+vbitset_ones (bitset dst)
+{
+ bitset_word *dstp = VBITSET_WORDS (dst);
+ unsigned int bytes;
+
+ bytes = sizeof (bitset_word) * VBITSET_SIZE (dst);
+
+ memset (dstp, -1, bytes);
+ vbitset_unused_clear (dst);
+}
+
+
+static void
+vbitset_zero (bitset dst)
+{
+ bitset_word *dstp = VBITSET_WORDS (dst);
+ unsigned int bytes;
+
+ bytes = sizeof (bitset_word) * VBITSET_SIZE (dst);
+
+ memset (dstp, 0, bytes);
+}
+
+
+static bool
+vbitset_empty_p (bitset dst)
+{
+ unsigned int i;
+ bitset_word *dstp = VBITSET_WORDS (dst);
+
+ for (i = 0; i < VBITSET_SIZE (dst); i++)
+ if (dstp[i])
+ return 0;
+
+ return 1;
+}
+
+
+static void
+vbitset_copy1 (bitset dst, bitset src)
+{
+ bitset_word *srcp;
+ bitset_word *dstp;
+ bitset_windex ssize;
+ bitset_windex dsize;
+
+ if (src == dst)
+ return;
+
+ vbitset_resize (dst, BITSET_SIZE_ (src));
+
+ srcp = VBITSET_WORDS (src);
+ dstp = VBITSET_WORDS (dst);
+ ssize = VBITSET_SIZE (src);
+ dsize = VBITSET_SIZE (dst);
+
+ memcpy (dstp, srcp, sizeof (bitset_word) * ssize);
+
+ memset (dstp + sizeof (bitset_word) * ssize, 0,
+ sizeof (bitset_word) * (dsize - ssize));
+}
+
+
+static void
+vbitset_not (bitset dst, bitset src)
+{
+ unsigned int i;
+ bitset_word *srcp;
+ bitset_word *dstp;
+ bitset_windex ssize;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, BITSET_SIZE_ (src));
+
+ srcp = VBITSET_WORDS (src);
+ dstp = VBITSET_WORDS (dst);
+ ssize = VBITSET_SIZE (src);
+ dsize = VBITSET_SIZE (dst);
+
+ for (i = 0; i < ssize; i++)
+ *dstp++ = ~(*srcp++);
+
+ vbitset_unused_clear (dst);
+ memset (dstp + sizeof (bitset_word) * ssize, 0,
+ sizeof (bitset_word) * (dsize - ssize));
+}
+
+
+static bool
+vbitset_equal_p (bitset dst, bitset src)
+{
+ unsigned int i;
+ bitset_word *srcp = VBITSET_WORDS (src);
+ bitset_word *dstp = VBITSET_WORDS (dst);
+ bitset_windex ssize = VBITSET_SIZE (src);
+ bitset_windex dsize = VBITSET_SIZE (dst);
+
+ for (i = 0; i < min (ssize, dsize); i++)
+ if (*srcp++ != *dstp++)
+ return 0;
+
+ if (ssize > dsize)
+ {
+ for (; i < ssize; i++)
+ if (*srcp++)
+ return 0;
+ }
+ else
+ {
+ for (; i < dsize; i++)
+ if (*dstp++)
+ return 0;
+ }
+
+ return 1;
+}
+
+
+static bool
+vbitset_subset_p (bitset dst, bitset src)
+{
+ unsigned int i;
+ bitset_word *srcp = VBITSET_WORDS (src);
+ bitset_word *dstp = VBITSET_WORDS (dst);
+ bitset_windex ssize = VBITSET_SIZE (src);
+ bitset_windex dsize = VBITSET_SIZE (dst);
+
+ for (i = 0; i < min (ssize, dsize); i++, dstp++, srcp++)
+ if (*dstp != (*srcp | *dstp))
+ return 0;
+
+ if (ssize > dsize)
+ {
+ for (; i < ssize; i++)
+ if (*srcp++)
+ return 0;
+ }
+
+ return 1;
+}
+
+
+static bool
+vbitset_disjoint_p (bitset dst, bitset src)
+{
+ unsigned int i;
+ bitset_word *srcp = VBITSET_WORDS (src);
+ bitset_word *dstp = VBITSET_WORDS (dst);
+ bitset_windex ssize = VBITSET_SIZE (src);
+ bitset_windex dsize = VBITSET_SIZE (dst);
+
+ for (i = 0; i < min (ssize, dsize); i++)
+ if (*srcp++ & *dstp++)
+ return 0;
+
+ return 1;
+}
+
+
+static void
+vbitset_and (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++)
+ *dstp++ = *src1p++ & *src2p++;
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - min (ssize1, ssize2)));
+}
+
+
+static bool
+vbitset_and_cmp (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ int changed = 0;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ & *src2p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+
+ if (ssize2 > ssize1)
+ {
+ src1p = src2p;
+ ssize1 = ssize2;
+ }
+
+ for (; i < ssize1; i++, dstp++)
+ {
+ if (*dstp != 0)
+ {
+ changed = 1;
+ *dstp = 0;
+ }
+ }
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize1));
+
+ return changed;
+}
+
+
+static void
+vbitset_andn (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++)
+ *dstp++ = *src1p++ & ~(*src2p++);
+
+ if (ssize2 > ssize1)
+ {
+ for (; i < ssize2; i++)
+ *dstp++ = 0;
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize2));
+ }
+ else
+ {
+ for (; i < ssize1; i++)
+ *dstp++ = *src1p++;
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize1));
+ }
+}
+
+
+static bool
+vbitset_andn_cmp (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ int changed = 0;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ & ~(*src2p++);
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+
+ if (ssize2 > ssize1)
+ {
+ for (; i < ssize2; i++, dstp++)
+ {
+ if (*dstp != 0)
+ {
+ changed = 1;
+ *dstp = 0;
+ }
+ }
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize2));
+ }
+ else
+ {
+ for (; i < ssize1; i++, dstp++)
+ {
+ bitset_word tmp = *src1p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize1));
+ }
+
+ return changed;
+}
+
+
+static void
+vbitset_or (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++)
+ *dstp++ = *src1p++ | *src2p++;
+
+ if (ssize2 > ssize1)
+ {
+ src1p = src2p;
+ ssize1 = ssize2;
+ }
+
+ for (; i < ssize1; i++)
+ *dstp++ = *src1p++;
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize1));
+}
+
+
+static bool
+vbitset_or_cmp (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ int changed = 0;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ | *src2p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+
+ if (ssize2 > ssize1)
+ {
+ src1p = src2p;
+ ssize1 = ssize2;
+ }
+
+ for (; i < ssize1; i++, dstp++)
+ {
+ bitset_word tmp = *src1p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize1));
+
+ return changed;
+}
+
+
+static void
+vbitset_xor (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++)
+ *dstp++ = *src1p++ ^ *src2p++;
+
+ if (ssize2 > ssize1)
+ {
+ src1p = src2p;
+ ssize1 = ssize2;
+ }
+
+ for (; i < ssize1; i++)
+ *dstp++ = *src1p++;
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize1));
+}
+
+
+static bool
+vbitset_xor_cmp (bitset dst, bitset src1, bitset src2)
+{
+ unsigned int i;
+ int changed = 0;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *dstp;
+ bitset_windex ssize1;
+ bitset_windex ssize2;
+ bitset_windex dsize;
+
+ vbitset_resize (dst, max (BITSET_SIZE_ (src1), BITSET_SIZE_ (src2)));
+
+ dsize = VBITSET_SIZE (dst);
+ ssize1 = VBITSET_SIZE (src1);
+ ssize2 = VBITSET_SIZE (src2);
+ dstp = VBITSET_WORDS (dst);
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+
+ for (i = 0; i < min (ssize1, ssize2); i++, dstp++)
+ {
+ bitset_word tmp = *src1p++ ^ *src2p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+
+ if (ssize2 > ssize1)
+ {
+ src1p = src2p;
+ ssize1 = ssize2;
+ }
+
+ for (; i < ssize1; i++, dstp++)
+ {
+ bitset_word tmp = *src1p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+
+ memset (dstp, 0, sizeof (bitset_word) * (dsize - ssize1));
+
+ return changed;
+}
+
+
+/* FIXME, these operations need fixing for different size
+ bitsets. */
+
+static void
+vbitset_and_or (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ unsigned int i;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *src3p;
+ bitset_word *dstp;
+ bitset_windex size;
+
+ if (BITSET_NBITS_ (src1) != BITSET_NBITS_ (src2)
+ || BITSET_NBITS_ (src1) != BITSET_NBITS_ (src3))
+ {
+ bitset_and_or_ (dst, src1, src2, src3);
+ return;
+ }
+
+ vbitset_resize (dst, BITSET_NBITS_ (src1));
+
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+ src3p = VBITSET_WORDS (src3);
+ dstp = VBITSET_WORDS (dst);
+ size = VBITSET_SIZE (dst);
+
+ for (i = 0; i < size; i++)
+ *dstp++ = (*src1p++ & *src2p++) | *src3p++;
+}
+
+
+static bool
+vbitset_and_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ unsigned int i;
+ int changed = 0;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *src3p;
+ bitset_word *dstp;
+ bitset_windex size;
+
+ if (BITSET_NBITS_ (src1) != BITSET_NBITS_ (src2)
+ || BITSET_NBITS_ (src1) != BITSET_NBITS_ (src3))
+ return bitset_and_or_cmp_ (dst, src1, src2, src3);
+
+ vbitset_resize (dst, BITSET_NBITS_ (src1));
+
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+ src3p = VBITSET_WORDS (src3);
+ dstp = VBITSET_WORDS (dst);
+ size = VBITSET_SIZE (dst);
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = (*src1p++ & *src2p++) | *src3p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+vbitset_andn_or (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ unsigned int i;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *src3p;
+ bitset_word *dstp;
+ bitset_windex size;
+
+ if (BITSET_NBITS_ (src1) != BITSET_NBITS_ (src2)
+ || BITSET_NBITS_ (src1) != BITSET_NBITS_ (src3))
+ {
+ bitset_andn_or_ (dst, src1, src2, src3);
+ return;
+ }
+
+ vbitset_resize (dst, BITSET_NBITS_ (src1));
+
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+ src3p = VBITSET_WORDS (src3);
+ dstp = VBITSET_WORDS (dst);
+ size = VBITSET_SIZE (dst);
+
+ for (i = 0; i < size; i++)
+ *dstp++ = (*src1p++ & ~(*src2p++)) | *src3p++;
+}
+
+
+static bool
+vbitset_andn_or_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ unsigned int i;
+ int changed = 0;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *src3p;
+ bitset_word *dstp;
+ bitset_windex size;
+
+ if (BITSET_NBITS_ (src1) != BITSET_NBITS_ (src2)
+ || BITSET_NBITS_ (src1) != BITSET_NBITS_ (src3))
+ return bitset_andn_or_cmp_ (dst, src1, src2, src3);
+
+ vbitset_resize (dst, BITSET_NBITS_ (src1));
+
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+ src3p = VBITSET_WORDS (src3);
+ dstp = VBITSET_WORDS (dst);
+ size = VBITSET_SIZE (dst);
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = (*src1p++ & ~(*src2p++)) | *src3p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+vbitset_or_and (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ unsigned int i;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *src3p;
+ bitset_word *dstp;
+ bitset_windex size;
+
+ if (BITSET_NBITS_ (src1) != BITSET_NBITS_ (src2)
+ || BITSET_NBITS_ (src1) != BITSET_NBITS_ (src3))
+ {
+ bitset_or_and_ (dst, src1, src2, src3);
+ return;
+ }
+
+ vbitset_resize (dst, BITSET_NBITS_ (src1));
+
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+ src3p = VBITSET_WORDS (src3);
+ dstp = VBITSET_WORDS (dst);
+ size = VBITSET_SIZE (dst);
+
+ for (i = 0; i < size; i++)
+ *dstp++ = (*src1p++ | *src2p++) & *src3p++;
+}
+
+
+static bool
+vbitset_or_and_cmp (bitset dst, bitset src1, bitset src2, bitset src3)
+{
+ unsigned int i;
+ int changed = 0;
+ bitset_word *src1p;
+ bitset_word *src2p;
+ bitset_word *src3p;
+ bitset_word *dstp;
+ bitset_windex size;
+
+ if (BITSET_NBITS_ (src1) != BITSET_NBITS_ (src2)
+ || BITSET_NBITS_ (src1) != BITSET_NBITS_ (src3))
+ return bitset_or_and_cmp_ (dst, src1, src2, src3);
+
+ vbitset_resize (dst, BITSET_NBITS_ (src1));
+
+ src1p = VBITSET_WORDS (src1);
+ src2p = VBITSET_WORDS (src2);
+ src3p = VBITSET_WORDS (src3);
+ dstp = VBITSET_WORDS (dst);
+ size = VBITSET_SIZE (dst);
+
+ for (i = 0; i < size; i++, dstp++)
+ {
+ bitset_word tmp = (*src1p++ | *src2p++) & *src3p++;
+
+ if (*dstp != tmp)
+ {
+ changed = 1;
+ *dstp = tmp;
+ }
+ }
+ return changed;
+}
+
+
+static void
+vbitset_copy (bitset dst, bitset src)
+{
+ if (BITSET_COMPATIBLE_ (dst, src))
+ vbitset_copy1 (dst, src);
+ else
+ bitset_copy_ (dst, src);
+}
+
+
+/* Vector of operations for multiple word bitsets. */
+struct bitset_vtable vbitset_vtable = {
+ vbitset_set,
+ vbitset_reset,
+ bitset_toggle_,
+ vbitset_test,
+ vbitset_resize,
+ bitset_size_,
+ bitset_count_,
+ vbitset_empty_p,
+ vbitset_ones,
+ vbitset_zero,
+ vbitset_copy,
+ vbitset_disjoint_p,
+ vbitset_equal_p,
+ vbitset_not,
+ vbitset_subset_p,
+ vbitset_and,
+ vbitset_and_cmp,
+ vbitset_andn,
+ vbitset_andn_cmp,
+ vbitset_or,
+ vbitset_or_cmp,
+ vbitset_xor,
+ vbitset_xor_cmp,
+ vbitset_and_or,
+ vbitset_and_or_cmp,
+ vbitset_andn_or,
+ vbitset_andn_or_cmp,
+ vbitset_or_and,
+ vbitset_or_and_cmp,
+ vbitset_list,
+ vbitset_list_reverse,
+ NULL,
+ BITSET_VARRAY
+};
+
+
+size_t
+vbitset_bytes (n_bits)
+ bitset_bindex n_bits ATTRIBUTE_UNUSED;
+{
+ return sizeof (struct vbitset_struct);
+}
+
+
+bitset
+vbitset_init (bset, n_bits)
+ bitset bset;
+ bitset_bindex n_bits;
+{
+ bset->b.vtable = &vbitset_vtable;
+
+ bset->b.cindex = 0;
+
+ VBITSET_SIZE (bset) = 0;
+ vbitset_resize (bset, n_bits);
+ return bset;
+}
diff --git a/lib/vbitset.h b/lib/vbitset.h
new file mode 100644
index 0000000..bab011c
--- /dev/null
+++ b/lib/vbitset.h
@@ -0,0 +1,28 @@
+/* Functions to support vbitsets.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+ Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz).
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _VBITSET_H
+#define _VBITSET_H
+
+#include "bitset.h"
+
+extern size_t vbitset_bytes (bitset_bindex);
+
+extern bitset vbitset_init (bitset, bitset_bindex);
+
+#endif
diff --git a/lib/verify.h b/lib/verify.h
new file mode 100644
index 0000000..d603b17
--- /dev/null
+++ b/lib/verify.h
@@ -0,0 +1,141 @@
+/* Compile-time assert-like macros.
+
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Written by Paul Eggert, Bruno Haible, and Jim Meyering. */
+
+#ifndef VERIFY_H
+# define VERIFY_H 1
+
+/* Each of these macros verifies that its argument R is nonzero. To
+ be portable, R should be an integer constant expression. Unlike
+ assert (R), there is no run-time overhead.
+
+ There are two macros, since no single macro can be used in all
+ contexts in C. verify_true (R) is for scalar contexts, including
+ integer constant expression contexts. verify (R) is for declaration
+ contexts, e.g., the top level.
+
+ Symbols ending in "__" are private to this header.
+
+ The code below uses several ideas.
+
+ * The first step is ((R) ? 1 : -1). Given an expression R, of
+ integral or boolean or floating-point type, this yields an
+ expression of integral type, whose value is later verified to be
+ constant and nonnegative.
+
+ * Next this expression W is wrapped in a type
+ struct verify_type__ { unsigned int verify_error_if_negative_size__: W; }.
+ If W is negative, this yields a compile-time error. No compiler can
+ deal with a bit-field of negative size.
+
+ One might think that an array size check would have the same
+ effect, that is, that the type struct { unsigned int dummy[W]; }
+ would work as well. However, inside a function, some compilers
+ (such as C++ compilers and GNU C) allow local parameters and
+ variables inside array size expressions. With these compilers,
+ an array size check would not properly diagnose this misuse of
+ the verify macro:
+
+ void function (int n) { verify (n < 0); }
+
+ * For the verify macro, the struct verify_type__ will need to
+ somehow be embedded into a declaration. To be portable, this
+ declaration must declare an object, a constant, a function, or a
+ typedef name. If the declared entity uses the type directly,
+ such as in
+
+ struct dummy {...};
+ typedef struct {...} dummy;
+ extern struct {...} *dummy;
+ extern void dummy (struct {...} *);
+ extern struct {...} *dummy (void);
+
+ two uses of the verify macro would yield colliding declarations
+ if the entity names are not disambiguated. A workaround is to
+ attach the current line number to the entity name:
+
+ #define GL_CONCAT0(x, y) x##y
+ #define GL_CONCAT(x, y) GL_CONCAT0 (x, y)
+ extern struct {...} * GL_CONCAT(dummy,__LINE__);
+
+ But this has the problem that two invocations of verify from
+ within the same macro would collide, since the __LINE__ value
+ would be the same for both invocations.
+
+ A solution is to use the sizeof operator. It yields a number,
+ getting rid of the identity of the type. Declarations like
+
+ extern int dummy [sizeof (struct {...})];
+ extern void dummy (int [sizeof (struct {...})]);
+ extern int (*dummy (void)) [sizeof (struct {...})];
+
+ can be repeated.
+
+ * Should the implementation use a named struct or an unnamed struct?
+ Which of the following alternatives can be used?
+
+ extern int dummy [sizeof (struct {...})];
+ extern int dummy [sizeof (struct verify_type__ {...})];
+ extern void dummy (int [sizeof (struct {...})]);
+ extern void dummy (int [sizeof (struct verify_type__ {...})]);
+ extern int (*dummy (void)) [sizeof (struct {...})];
+ extern int (*dummy (void)) [sizeof (struct verify_type__ {...})];
+
+ In the second and sixth case, the struct type is exported to the
+ outer scope; two such declarations therefore collide. GCC warns
+ about the first, third, and fourth cases. So the only remaining
+ possibility is the fifth case:
+
+ extern int (*dummy (void)) [sizeof (struct {...})];
+
+ * This implementation exploits the fact that GCC does not warn about
+ the last declaration mentioned above. If a future version of GCC
+ introduces a warning for this, the problem could be worked around
+ by using code specialized to GCC, e.g.,:
+
+ #if 4 <= __GNUC__
+ # define verify(R) \
+ extern int (* verify_function__ (void)) \
+ [__builtin_constant_p (R) && (R) ? 1 : -1]
+ #endif
+
+ * In C++, any struct definition inside sizeof is invalid.
+ Use a template type to work around the problem. */
+
+
+/* Verify requirement R at compile-time, as an integer constant expression.
+ Return 1. */
+
+# ifdef __cplusplus
+template <int w>
+ struct verify_type__ { unsigned int verify_error_if_negative_size__: w; };
+# define verify_true(R) \
+ (!!sizeof (verify_type__<(R) ? 1 : -1>))
+# else
+# define verify_true(R) \
+ (!!sizeof \
+ (struct { unsigned int verify_error_if_negative_size__: (R) ? 1 : -1; }))
+# endif
+
+/* Verify requirement R at compile-time, as a declaration without a
+ trailing ';'. */
+
+# define verify(R) extern int (* verify_function__ (void)) [verify_true (R)]
+
+#endif
diff --git a/lib/xalloc-die.c b/lib/xalloc-die.c
new file mode 100644
index 0000000..9b4a76c
--- /dev/null
+++ b/lib/xalloc-die.c
@@ -0,0 +1,44 @@
+/* Report a memory allocation failure and exit.
+
+ Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2006 Free
+ Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "xalloc.h"
+
+#include <stdlib.h>
+
+#include "error.h"
+#include "exitfail.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+void
+xalloc_die (void)
+{
+ error (exit_failure, 0, "%s", _("memory exhausted"));
+
+ /* The `noreturn' cannot be given to error, since it may return if
+ its first argument is 0. To help compilers understand the
+ xalloc_die does not return, call abort. Also, the abort is a
+ safety feature if exit_failure is 0 (which shouldn't happen). */
+ abort ();
+}
diff --git a/lib/xalloc.h b/lib/xalloc.h
new file mode 100644
index 0000000..f80977e
--- /dev/null
+++ b/lib/xalloc.h
@@ -0,0 +1,79 @@
+/* xalloc.h -- malloc with out-of-memory checking
+
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef XALLOC_H_
+# define XALLOC_H_
+
+# include <stddef.h>
+
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+
+# ifndef __attribute__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
+# define __attribute__(x)
+# endif
+# endif
+
+# ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+# endif
+
+/* This function is always triggered when memory is exhausted.
+ It must be defined by the application, either explicitly
+ or by using gnulib's xalloc-die module. This is the
+ function to call when one wants the program to die because of a
+ memory allocation failure. */
+extern void xalloc_die (void) ATTRIBUTE_NORETURN;
+
+void *xmalloc (size_t s);
+void *xnmalloc (size_t n, size_t s);
+void *xzalloc (size_t s);
+void *xcalloc (size_t n, size_t s);
+void *xrealloc (void *p, size_t s);
+void *xnrealloc (void *p, size_t n, size_t s);
+void *x2realloc (void *p, size_t *pn);
+void *x2nrealloc (void *p, size_t *pn, size_t s);
+void *xmemdup (void const *p, size_t s);
+char *xstrdup (char const *str);
+
+/* Return 1 if an array of N objects, each of size S, cannot exist due
+ to size arithmetic overflow. S must be positive and N must be
+ nonnegative. This is a macro, not an inline function, so that it
+ works correctly even when SIZE_MAX < N.
+
+ By gnulib convention, SIZE_MAX represents overflow in size
+ calculations, so the conservative dividend to use here is
+ SIZE_MAX - 1, since SIZE_MAX might represent an overflowed value.
+ However, malloc (SIZE_MAX) fails on all known hosts where
+ sizeof (ptrdiff_t) <= sizeof (size_t), so do not bother to test for
+ exactly-SIZE_MAX allocations on such hosts; this avoids a test and
+ branch when S is known to be 1. */
+# define xalloc_oversized(n, s) \
+ ((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n))
+
+# ifdef __cplusplus
+}
+# endif
+
+
+#endif /* !XALLOC_H_ */
diff --git a/lib/xmalloc.c b/lib/xmalloc.c
new file mode 100644
index 0000000..687633c
--- /dev/null
+++ b/lib/xmalloc.c
@@ -0,0 +1,241 @@
+/* xmalloc.c -- malloc with out of memory checking
+
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "xalloc.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t) -1)
+#endif
+
+/* 1 if calloc is known to be compatible with GNU calloc. This
+ matters if we are not also using the calloc module, which defines
+ HAVE_CALLOC and supports the GNU API even on non-GNU platforms. */
+#if defined HAVE_CALLOC || defined __GLIBC__
+enum { HAVE_GNU_CALLOC = 1 };
+#else
+enum { HAVE_GNU_CALLOC = 0 };
+#endif
+
+/* Allocate an array of N objects, each with S bytes of memory,
+ dynamically, with error checking. S must be nonzero. */
+
+static inline void *
+xnmalloc_inline (size_t n, size_t s)
+{
+ void *p;
+ if (xalloc_oversized (n, s) || (! (p = malloc (n * s)) && n != 0))
+ xalloc_die ();
+ return p;
+}
+
+void *
+xnmalloc (size_t n, size_t s)
+{
+ return xnmalloc_inline (n, s);
+}
+
+/* Allocate N bytes of memory dynamically, with error checking. */
+
+void *
+xmalloc (size_t n)
+{
+ return xnmalloc_inline (n, 1);
+}
+
+/* Change the size of an allocated block of memory P to an array of N
+ objects each of S bytes, with error checking. S must be nonzero. */
+
+static inline void *
+xnrealloc_inline (void *p, size_t n, size_t s)
+{
+ if (xalloc_oversized (n, s) || (! (p = realloc (p, n * s)) && n != 0))
+ xalloc_die ();
+ return p;
+}
+
+void *
+xnrealloc (void *p, size_t n, size_t s)
+{
+ return xnrealloc_inline (p, n, s);
+}
+
+/* Change the size of an allocated block of memory P to N bytes,
+ with error checking. */
+
+void *
+xrealloc (void *p, size_t n)
+{
+ return xnrealloc_inline (p, n, 1);
+}
+
+
+/* If P is null, allocate a block of at least *PN such objects;
+ otherwise, reallocate P so that it contains more than *PN objects
+ each of S bytes. *PN must be nonzero unless P is null, and S must
+ be nonzero. Set *PN to the new number of objects, and return the
+ pointer to the new block. *PN is never set to zero, and the
+ returned pointer is never null.
+
+ Repeated reallocations are guaranteed to make progress, either by
+ allocating an initial block with a nonzero size, or by allocating a
+ larger block.
+
+ In the following implementation, nonzero sizes are doubled so that
+ repeated reallocations have O(N log N) overall cost rather than
+ O(N**2) cost, but the specification for this function does not
+ guarantee that sizes are doubled.
+
+ Here is an example of use:
+
+ int *p = NULL;
+ size_t used = 0;
+ size_t allocated = 0;
+
+ void
+ append_int (int value)
+ {
+ if (used == allocated)
+ p = x2nrealloc (p, &allocated, sizeof *p);
+ p[used++] = value;
+ }
+
+ This causes x2nrealloc to allocate a block of some nonzero size the
+ first time it is called.
+
+ To have finer-grained control over the initial size, set *PN to a
+ nonzero value before calling this function with P == NULL. For
+ example:
+
+ int *p = NULL;
+ size_t used = 0;
+ size_t allocated = 0;
+ size_t allocated1 = 1000;
+
+ void
+ append_int (int value)
+ {
+ if (used == allocated)
+ {
+ p = x2nrealloc (p, &allocated1, sizeof *p);
+ allocated = allocated1;
+ }
+ p[used++] = value;
+ }
+
+ */
+
+static inline void *
+x2nrealloc_inline (void *p, size_t *pn, size_t s)
+{
+ size_t n = *pn;
+
+ if (! p)
+ {
+ if (! n)
+ {
+ /* The approximate size to use for initial small allocation
+ requests, when the invoking code specifies an old size of
+ zero. 64 bytes is the largest "small" request for the
+ GNU C library malloc. */
+ enum { DEFAULT_MXFAST = 64 };
+
+ n = DEFAULT_MXFAST / s;
+ n += !n;
+ }
+ }
+ else
+ {
+ if (SIZE_MAX / 2 / s < n)
+ xalloc_die ();
+ n *= 2;
+ }
+
+ *pn = n;
+ return xrealloc (p, n * s);
+}
+
+void *
+x2nrealloc (void *p, size_t *pn, size_t s)
+{
+ return x2nrealloc_inline (p, pn, s);
+}
+
+/* If P is null, allocate a block of at least *PN bytes; otherwise,
+ reallocate P so that it contains more than *PN bytes. *PN must be
+ nonzero unless P is null. Set *PN to the new block's size, and
+ return the pointer to the new block. *PN is never set to zero, and
+ the returned pointer is never null. */
+
+void *
+x2realloc (void *p, size_t *pn)
+{
+ return x2nrealloc_inline (p, pn, 1);
+}
+
+/* Allocate S bytes of zeroed memory dynamically, with error checking.
+ There's no need for xnzalloc (N, S), since it would be equivalent
+ to xcalloc (N, S). */
+
+void *
+xzalloc (size_t s)
+{
+ return memset (xmalloc (s), 0, s);
+}
+
+/* Allocate zeroed memory for N elements of S bytes, with error
+ checking. S must be nonzero. */
+
+void *
+xcalloc (size_t n, size_t s)
+{
+ void *p;
+ /* Test for overflow, since some calloc implementations don't have
+ proper overflow checks. But omit overflow and size-zero tests if
+ HAVE_GNU_CALLOC, since GNU calloc catches overflow and never
+ returns NULL if successful. */
+ if ((! HAVE_GNU_CALLOC && xalloc_oversized (n, s))
+ || (! (p = calloc (n, s)) && (HAVE_GNU_CALLOC || n != 0)))
+ xalloc_die ();
+ return p;
+}
+
+/* Clone an object P of size S, with error checking. There's no need
+ for xnmemdup (P, N, S), since xmemdup (P, N * S) works without any
+ need for an arithmetic overflow check. */
+
+void *
+xmemdup (void const *p, size_t s)
+{
+ return memcpy (xmalloc (s), p, s);
+}
+
+/* Clone STRING. */
+
+char *
+xstrdup (char const *string)
+{
+ return xmemdup (string, strlen (string) + 1);
+}
diff --git a/lib/xstrndup.c b/lib/xstrndup.c
new file mode 100644
index 0000000..a62d4bd
--- /dev/null
+++ b/lib/xstrndup.c
@@ -0,0 +1,39 @@
+/* Duplicate a bounded initial segment of a string, with out-of-memory
+ checking.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* Specification. */
+#include "xstrndup.h"
+
+#include "strndup.h"
+#include "xalloc.h"
+
+/* Return a newly allocated copy of at most N bytes of STRING.
+ In other words, return a copy of the initial segment of length N of
+ STRING. */
+char *
+xstrndup (const char *string, size_t n)
+{
+ char *s = strndup (string, n);
+ if (! s)
+ xalloc_die ();
+ return s;
+}
diff --git a/lib/xstrndup.h b/lib/xstrndup.h
new file mode 100644
index 0000000..88354cf
--- /dev/null
+++ b/lib/xstrndup.h
@@ -0,0 +1,24 @@
+/* Duplicate a bounded initial segment of a string, with out-of-memory
+ checking.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <stddef.h>
+
+/* Return a newly allocated copy of at most N bytes of STRING.
+ In other words, return a copy of the initial segment of length N of
+ STRING. */
+extern char *xstrndup (const char *string, size_t n);
diff --git a/lib/yyerror.c b/lib/yyerror.c
new file mode 100644
index 0000000..b4ce4ba
--- /dev/null
+++ b/lib/yyerror.c
@@ -0,0 +1,30 @@
+/* Yacc library error-printing function.
+
+ Copyright (C) 2002 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <stdio.h>
+
+int yyerror (char const *);
+
+int
+yyerror (char const *message)
+{
+ return fprintf (stderr, "%s\n", message);
+}
diff --git a/m4/bison-i18n.m4 b/m4/bison-i18n.m4
new file mode 100644
index 0000000..2fe6c60
--- /dev/null
+++ b/m4/bison-i18n.m4
@@ -0,0 +1,59 @@
+# bison-i18n.m4 serial 1 (bison-2.1)
+dnl Copyright (C) 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+dnl Support for internationalization of bison-generated parsers.
+
+dnl BISON_I18N
+dnl should be used in configure.ac, after AM_GNU_GETTEXT. If USE_NLS is yes, it
+dnl sets BISON_LOCALEDIR to indicate where to find the bison-runtime.mo files
+dnl and defines YYENABLE_NLS if there are bison-runtime.mo files at all.
+AC_DEFUN([BISON_I18N],
+[
+ if test -z "$USE_NLS"; then
+ echo "The BISON-I18N macro is used without being preceded by AM-GNU-GETTEXT." 1>&2
+ exit 1
+ fi
+ BISON_LOCALEDIR=
+ if test "$USE_NLS" = yes; then
+ dnl AC_PROG_YACC sets the YACC variable; other macros set the BISON variable.
+ if test -n "$YACC"; then
+ case "$YACC" in
+ *bison*)
+ if ($YACC --print-localedir) >/dev/null 2>&1; then
+ BISON_LOCALEDIR=`$YACC --print-localedir`
+ fi
+ ;;
+ esac
+ else
+ if test -n "$BISON"; then
+ if test "$BISON" != ":"; then
+ if ($BISON --print-localedir) >/dev/null 2>&1; then
+ BISON_LOCALEDIR=`$BISON --print-localedir`
+ fi
+ fi
+ fi
+ fi
+ AC_SUBST([BISON_LOCALEDIR])
+ if test -n "$BISON_LOCALEDIR"; then
+ USER_LINGUAS="${LINGUAS-%UNSET%}"
+ if test -n "$USER_LINGUAS"; then
+ BISON_USE_NLS=yes
+ else
+ BISON_USE_NLS=no
+ fi
+ else
+ BISON_USE_NLS=no
+ fi
+ else
+ BISON_USE_NLS=no
+ fi
+ if test $BISON_USE_NLS = yes; then
+ AC_DEFINE([YYENABLE_NLS], 1,
+ [Define to 1 to internationalize bison runtime messages.])
+ fi
+])
diff --git a/m4/c-working.m4 b/m4/c-working.m4
new file mode 100644
index 0000000..ec74035
--- /dev/null
+++ b/m4/c-working.m4
@@ -0,0 +1,29 @@
+# Sanity test a C compiler.
+
+# Copyright (C) 2006 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# Written by Paul Eggert.
+
+AC_DEFUN([BISON_TEST_FOR_WORKING_C_COMPILER], [
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <limits.h>
+ int test_array[CHAR_BIT];]])],
+ [],
+ [AC_MSG_FAILURE([cannot compile a simple C program])])
+])
diff --git a/m4/cxx.m4 b/m4/cxx.m4
new file mode 100644
index 0000000..bae5652
--- /dev/null
+++ b/m4/cxx.m4
@@ -0,0 +1,62 @@
+# -*- Autoconf -*-
+# Sanity-test a C++ compiler.
+#
+# Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# Written by Paul Eggert.
+
+AC_DEFUN([BISON_TEST_FOR_WORKING_CXX_COMPILER],
+[
+ AC_CACHE_CHECK([whether $CXX builds executables that work],
+ bison_cv_cxx_works,
+ [AC_LANG_PUSH([C++])
+ bison_cv_cxx_works=no
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [#include <cstdlib>
+ #include <iostream>
+ #include <map>
+ #include <string>
+ using namespace std;],
+ [std::cerr << "";
+ cout << "";
+ typedef std::pair<unsigned int, int> uipair;
+ std::map<unsigned int, int> m;
+ std::map<unsigned int, int>::iterator i;
+ m.insert (uipair (4, -4));
+ for (i = m.begin (); i != m.end (); ++i)
+ if (i->first != 4)
+ return 1;])],
+ [AS_IF([AC_TRY_COMMAND([$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_objext $LIBS >&AS_MESSAGE_LOG_FD])],
+ [AS_IF([test "$cross_compiling" = yes],
+ [bison_cv_cxx_works=cross],
+ [AS_IF([AC_TRY_COMMAND(./conftest$ac_exeext)],
+ [bison_cv_cxx_works=yes])])])
+ rm -f conftest$ac_exeext])
+ AC_LANG_POP([C++])])
+
+ case $bison_cv_cxx_works in
+ yes)
+ BISON_CXX_WORKS=':';;
+ no | cross)
+ BISON_CXX_WORKS='exit 77';;
+ esac
+
+ AC_SUBST([BISON_CXX_WORKS])
+ AM_CONDITIONAL(BISON_CXX_WORKS, test $bison_cv_cxx_works = yes)
+])
diff --git a/m4/dirname.m4 b/m4/dirname.m4
new file mode 100644
index 0000000..e36937d
--- /dev/null
+++ b/m4/dirname.m4
@@ -0,0 +1,16 @@
+# dirname.m4 serial 5
+dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_DIRNAME],
+[
+ AC_LIBSOURCES([dirname.c, dirname.h])
+ AC_LIBOBJ([dirname])
+
+ dnl Prerequisites of lib/dirname.h.
+ AC_REQUIRE([gl_AC_DOS])
+
+ dnl No prerequisites of lib/basename.c, lib/dirname.c, lib/stripslash.c.
+])
diff --git a/m4/dmalloc.m4 b/m4/dmalloc.m4
new file mode 100644
index 0000000..f724670
--- /dev/null
+++ b/m4/dmalloc.m4
@@ -0,0 +1,22 @@
+## ----------------------------------- ##
+## Check if --with-dmalloc was given. ##
+## From Franc,ois Pinard ##
+## ----------------------------------- ##
+
+# serial 1
+
+AC_DEFUN([AM_WITH_DMALLOC],
+[AC_MSG_CHECKING([if malloc debugging is wanted])
+AC_ARG_WITH(dmalloc,
+[ --with-dmalloc use dmalloc, as in
+ http://www.dmalloc.com/dmalloc.tar.gz],
+[if test "$withval" = yes; then
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(WITH_DMALLOC,1,
+ [Define if using the dmalloc debugging malloc package])
+ LIBS="$LIBS -ldmalloc"
+ LDFLAGS="$LDFLAGS -g"
+else
+ AC_MSG_RESULT(no)
+fi], [AC_MSG_RESULT(no)])
+])
diff --git a/m4/dos.m4 b/m4/dos.m4
new file mode 100644
index 0000000..0713cf1
--- /dev/null
+++ b/m4/dos.m4
@@ -0,0 +1,58 @@
+#serial 9
+
+# Define some macros required for proper operation of code in lib/*.c
+# on MSDOS/Windows systems.
+
+# Copyright (C) 2000, 2001, 2004 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# From Jim Meyering.
+
+AC_DEFUN([gl_AC_DOS],
+ [
+ AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos],
+ [
+ AC_TRY_COMPILE([],
+ [#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
+neither MSDOS nor Windows
+#endif],
+ [ac_cv_win_or_dos=yes],
+ [ac_cv_win_or_dos=no])
+ ])
+
+ if test x"$ac_cv_win_or_dos" = xyes; then
+ ac_fs_accepts_drive_letter_prefix=1
+ ac_fs_backslash_is_file_name_separator=1
+ else
+ ac_fs_accepts_drive_letter_prefix=0
+ ac_fs_backslash_is_file_name_separator=0
+ fi
+
+ AH_VERBATIM(FILE_SYSTEM_PREFIX_LEN,
+ [#if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
+# define FILE_SYSTEM_PREFIX_LEN(Filename) \
+ ((Filename)[0] && (Filename)[1] == ':' ? 2 : 0)
+#else
+# define FILE_SYSTEM_PREFIX_LEN(Filename) 0
+#endif])
+
+ AC_DEFINE_UNQUOTED([FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX],
+ $ac_fs_accepts_drive_letter_prefix,
+ [Define on systems for which file names may have a so-called
+ `drive letter' prefix, define this to compute the length of that
+ prefix, including the colon.])
+
+ AH_VERBATIM(ISSLASH,
+ [#if FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
+# define ISSLASH(C) ((C) == '/' || (C) == '\\')
+#else
+# define ISSLASH(C) ((C) == '/')
+#endif])
+
+ AC_DEFINE_UNQUOTED([FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR],
+ $ac_fs_backslash_is_file_name_separator,
+ [Define if the backslash character may also serve as a file name
+ component separator.])
+ ])
diff --git a/m4/error.m4 b/m4/error.m4
new file mode 100644
index 0000000..7c7746e
--- /dev/null
+++ b/m4/error.m4
@@ -0,0 +1,22 @@
+#serial 11
+
+# Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2004 Free Software
+# Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_ERROR],
+[
+ AC_FUNC_ERROR_AT_LINE
+ dnl Note: AC_FUNC_ERROR_AT_LINE does AC_LIBSOURCES([error.h, error.c]).
+ gl_PREREQ_ERROR
+])
+
+# Prerequisites of lib/error.c.
+AC_DEFUN([gl_PREREQ_ERROR],
+[
+ AC_REQUIRE([AC_FUNC_STRERROR_R])
+ :
+])
diff --git a/m4/exitfail.m4 b/m4/exitfail.m4
new file mode 100644
index 0000000..5523676
--- /dev/null
+++ b/m4/exitfail.m4
@@ -0,0 +1,14 @@
+# exitfail.m4 serial 5
+dnl Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_EXITFAIL],
+[
+ AC_LIBSOURCES([exitfail.c, exitfail.h])
+ AC_LIBOBJ([exitfail])
+
+ dnl No prerequisites of lib/exitfail.c.
+ :
+])
diff --git a/m4/extensions.m4 b/m4/extensions.m4
new file mode 100644
index 0000000..4976079
--- /dev/null
+++ b/m4/extensions.m4
@@ -0,0 +1,42 @@
+# Enable extensions on systems that normally disable them.
+
+# Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This file is only needed in autoconf <= 2.59. Newer versions of autoconf
+# have a macro AC_USE_SYSTEM_EXTENSIONS with identical semantics.
+
+# gl_USE_SYSTEM_EXTENSIONS
+# ------------------------
+# Enable extensions on systems that normally disable them,
+# typically due to standards-conformance issues.
+AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS], [
+ AC_BEFORE([$0], [AC_COMPILE_IFELSE])
+ AC_BEFORE([$0], [AC_RUN_IFELSE])
+
+ AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([AC_AIX])
+ AC_REQUIRE([AC_MINIX])
+
+ AH_VERBATIM([__EXTENSIONS__],
+[/* Enable extensions on Solaris. */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
+#endif])
+ AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
+ [ac_cv_safe_to_define___extensions__],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([
+ #define __EXTENSIONS__ 1
+ AC_INCLUDES_DEFAULT])],
+ [ac_cv_safe_to_define___extensions__=yes],
+ [ac_cv_safe_to_define___extensions__=no])])
+ test $ac_cv_safe_to_define___extensions__ = yes &&
+ AC_DEFINE([__EXTENSIONS__])
+ AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
+])
diff --git a/m4/getopt.m4 b/m4/getopt.m4
new file mode 100644
index 0000000..e60b746
--- /dev/null
+++ b/m4/getopt.m4
@@ -0,0 +1,83 @@
+# getopt.m4 serial 12
+dnl Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# The getopt module assume you want GNU getopt, with getopt_long etc,
+# rather than vanilla POSIX getopt. This means your your code should
+# always include <getopt.h> for the getopt prototypes.
+
+AC_DEFUN([gl_GETOPT_SUBSTITUTE],
+[
+ AC_LIBOBJ([getopt])
+ AC_LIBOBJ([getopt1])
+ gl_GETOPT_SUBSTITUTE_HEADER
+ gl_PREREQ_GETOPT
+])
+
+AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
+[
+ GETOPT_H=getopt.h
+ AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
+ [Define to rpl_ if the getopt replacement functions and variables
+ should be used.])
+ AC_SUBST([GETOPT_H])
+])
+
+AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
+[
+ if test -z "$GETOPT_H"; then
+ AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
+ fi
+
+ if test -z "$GETOPT_H"; then
+ AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h])
+ fi
+
+ dnl BSD getopt_long uses an incompatible method to reset option processing,
+ dnl and (as of 2004-10-15) mishandles optional option-arguments.
+ if test -z "$GETOPT_H"; then
+ AC_CHECK_DECL([optreset], [GETOPT_H=getopt.h], [], [#include <getopt.h>])
+ fi
+
+ dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
+ dnl option string (as of 2005-05-05).
+ if test -z "$GETOPT_H"; then
+ AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_gnu_getopt],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([#include <getopt.h>],
+ [[
+ char *myargv[3];
+ myargv[0] = "conftest";
+ myargv[1] = "-+";
+ myargv[2] = 0;
+ return getopt (2, myargv, "+a") != '?';
+ ]])],
+ [gl_cv_func_gnu_getopt=yes],
+ [gl_cv_func_gnu_getopt=no],
+ [dnl cross compiling - pessimistically guess based on decls
+ dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
+ dnl option string (as of 2005-05-05).
+ AC_CHECK_DECL([getopt_clip],
+ [gl_cv_func_gnu_getopt=no], [gl_cv_func_gnu_getopt=yes],
+ [#include <getopt.h>])])])
+ if test "$gl_cv_func_gnu_getopt" = "no"; then
+ GETOPT_H=getopt.h
+ fi
+ fi
+])
+
+AC_DEFUN([gl_GETOPT_IFELSE],
+[
+ AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
+ AS_IF([test -n "$GETOPT_H"], [$1], [$2])
+])
+
+AC_DEFUN([gl_GETOPT], [gl_GETOPT_IFELSE([gl_GETOPT_SUBSTITUTE])])
+
+# Prerequisites of lib/getopt*.
+AC_DEFUN([gl_PREREQ_GETOPT],
+[
+ AC_CHECK_DECLS_ONCE([getenv])
+])
diff --git a/m4/gettext_gl.m4 b/m4/gettext_gl.m4
new file mode 100644
index 0000000..023f7bc
--- /dev/null
+++ b/m4/gettext_gl.m4
@@ -0,0 +1,427 @@
+# gettext.m4 serial 37 (gettext-0.14.4)
+dnl Copyright (C) 1995-2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Authors:
+dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
+dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003.
+
+dnl Macro to add for using GNU gettext.
+
+dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
+dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
+dnl default (if it is not specified or empty) is 'no-libtool'.
+dnl INTLSYMBOL should be 'external' for packages with no intl directory,
+dnl and 'no-libtool' or 'use-libtool' for packages with an intl directory.
+dnl If INTLSYMBOL is 'use-libtool', then a libtool library
+dnl $(top_builddir)/intl/libintl.la will be created (shared and/or static,
+dnl depending on --{enable,disable}-{shared,static} and on the presence of
+dnl AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
+dnl $(top_builddir)/intl/libintl.a will be created.
+dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
+dnl implementations (in libc or libintl) without the ngettext() function
+dnl will be ignored. If NEEDSYMBOL is specified and is
+dnl 'need-formatstring-macros', then GNU gettext implementations that don't
+dnl support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
+dnl INTLDIR is used to find the intl libraries. If empty,
+dnl the value `$(top_builddir)/intl/' is used.
+dnl
+dnl The result of the configuration is one of three cases:
+dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
+dnl and used.
+dnl Catalog format: GNU --> install in $(datadir)
+dnl Catalog extension: .mo after installation, .gmo in source tree
+dnl 2) GNU gettext has been found in the system's C library.
+dnl Catalog format: GNU --> install in $(datadir)
+dnl Catalog extension: .mo after installation, .gmo in source tree
+dnl 3) No internationalization, always use English msgid.
+dnl Catalog format: none
+dnl Catalog extension: none
+dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
+dnl The use of .gmo is historical (it was needed to avoid overwriting the
+dnl GNU format catalogs when building on a platform with an X/Open gettext),
+dnl but we keep it in order not to force irrelevant filename changes on the
+dnl maintainers.
+dnl
+AC_DEFUN([AM_GNU_GETTEXT],
+[
+ dnl Argument checking.
+ ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
+ [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
+])])])])])
+ ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
+ [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
+])])])])
+ define([gt_included_intl], ifelse([$1], [external], [no], [yes]))
+ define([gt_libtool_suffix_prefix], ifelse([$1], [use-libtool], [l], []))
+
+ AC_REQUIRE([AM_PO_SUBDIRS])dnl
+ ifelse(gt_included_intl, yes, [
+ AC_REQUIRE([AM_INTL_SUBDIR])dnl
+ ])
+
+ dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
+ AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
+ AC_REQUIRE([AC_LIB_RPATH])
+
+ dnl Sometimes libintl requires libiconv, so first search for libiconv.
+ dnl Ideally we would do this search only after the
+ dnl if test "$USE_NLS" = "yes"; then
+ dnl if test "$gt_cv_func_gnugettext_libc" != "yes"; then
+ dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
+ dnl the configure script would need to contain the same shell code
+ dnl again, outside any 'if'. There are two solutions:
+ dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
+ dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
+ dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
+ dnl documented, we avoid it.
+ ifelse(gt_included_intl, yes, , [
+ AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
+ ])
+
+ dnl Sometimes, on MacOS X, libintl requires linking with CoreFoundation.
+ gt_INTL_MACOSX
+
+ dnl Set USE_NLS.
+ AM_NLS
+
+ ifelse(gt_included_intl, yes, [
+ BUILD_INCLUDED_LIBINTL=no
+ USE_INCLUDED_LIBINTL=no
+ ])
+ LIBINTL=
+ LTLIBINTL=
+ POSUB=
+
+ dnl If we use NLS figure out what method
+ if test "$USE_NLS" = "yes"; then
+ gt_use_preinstalled_gnugettext=no
+ ifelse(gt_included_intl, yes, [
+ AC_MSG_CHECKING([whether included gettext is requested])
+ AC_ARG_WITH(included-gettext,
+ [ --with-included-gettext use the GNU gettext library included here],
+ nls_cv_force_use_gnu_gettext=$withval,
+ nls_cv_force_use_gnu_gettext=no)
+ AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
+
+ nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
+ if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
+ ])
+ dnl User does not insist on using GNU NLS library. Figure out what
+ dnl to use. If GNU gettext is available we use this. Else we have
+ dnl to fall back to GNU NLS library.
+
+ dnl Add a version number to the cache macros.
+ define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
+ define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
+ define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
+
+ AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
+ [AC_TRY_LINK([#include <libintl.h>
+]ifelse([$2], [need-formatstring-macros],
+[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
+#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
+#endif
+changequote(,)dnl
+typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
+changequote([,])dnl
+], [])[extern int _nl_msg_cat_cntr;
+extern int *_nl_domain_bindings;],
+ [bindtextdomain ("", "");
+return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
+ gt_cv_func_gnugettext_libc=yes,
+ gt_cv_func_gnugettext_libc=no)])
+
+ if test "$gt_cv_func_gnugettext_libc" != "yes"; then
+ dnl Sometimes libintl requires libiconv, so first search for libiconv.
+ ifelse(gt_included_intl, yes, , [
+ AM_ICONV_LINK
+ ])
+ dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
+ dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
+ dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
+ dnl even if libiconv doesn't exist.
+ AC_LIB_LINKFLAGS_BODY([intl])
+ AC_CACHE_CHECK([for GNU gettext in libintl],
+ gt_cv_func_gnugettext_libintl,
+ [gt_save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $INCINTL"
+ gt_save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBINTL"
+ dnl Now see whether libintl exists and does not depend on libiconv.
+ AC_TRY_LINK([#include <libintl.h>
+]ifelse([$2], [need-formatstring-macros],
+[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
+#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
+#endif
+changequote(,)dnl
+typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
+changequote([,])dnl
+], [])[extern int _nl_msg_cat_cntr;
+extern
+#ifdef __cplusplus
+"C"
+#endif
+const char *_nl_expand_alias (const char *);],
+ [bindtextdomain ("", "");
+return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias ("")],
+ gt_cv_func_gnugettext_libintl=yes,
+ gt_cv_func_gnugettext_libintl=no)
+ dnl Now see whether libintl exists and depends on libiconv.
+ if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
+ LIBS="$LIBS $LIBICONV"
+ AC_TRY_LINK([#include <libintl.h>
+]ifelse([$2], [need-formatstring-macros],
+[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
+#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
+#endif
+changequote(,)dnl
+typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
+changequote([,])dnl
+], [])[extern int _nl_msg_cat_cntr;
+extern
+#ifdef __cplusplus
+"C"
+#endif
+const char *_nl_expand_alias (const char *);],
+ [bindtextdomain ("", "");
+return * gettext ("")]ifelse([$2], [need-ngettext], [ + * ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias ("")],
+ [LIBINTL="$LIBINTL $LIBICONV"
+ LTLIBINTL="$LTLIBINTL $LTLIBICONV"
+ gt_cv_func_gnugettext_libintl=yes
+ ])
+ fi
+ CPPFLAGS="$gt_save_CPPFLAGS"
+ LIBS="$gt_save_LIBS"])
+ fi
+
+ dnl If an already present or preinstalled GNU gettext() is found,
+ dnl use it. But if this macro is used in GNU gettext, and GNU
+ dnl gettext is already preinstalled in libintl, we update this
+ dnl libintl. (Cf. the install rule in intl/Makefile.in.)
+ if test "$gt_cv_func_gnugettext_libc" = "yes" \
+ || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
+ && test "$PACKAGE" != gettext-runtime \
+ && test "$PACKAGE" != gettext-tools; }; then
+ gt_use_preinstalled_gnugettext=yes
+ else
+ dnl Reset the values set by searching for libintl.
+ LIBINTL=
+ LTLIBINTL=
+ INCINTL=
+ fi
+
+ ifelse(gt_included_intl, yes, [
+ if test "$gt_use_preinstalled_gnugettext" != "yes"; then
+ dnl GNU gettext is not found in the C library.
+ dnl Fall back on included GNU gettext library.
+ nls_cv_use_gnu_gettext=yes
+ fi
+ fi
+
+ if test "$nls_cv_use_gnu_gettext" = "yes"; then
+ dnl Mark actions used to generate GNU NLS library.
+ BUILD_INCLUDED_LIBINTL=yes
+ USE_INCLUDED_LIBINTL=yes
+ LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
+ LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
+ LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
+ fi
+
+ CATOBJEXT=
+ if test "$gt_use_preinstalled_gnugettext" = "yes" \
+ || test "$nls_cv_use_gnu_gettext" = "yes"; then
+ dnl Mark actions to use GNU gettext tools.
+ CATOBJEXT=.gmo
+ fi
+ ])
+
+ if test -n "$INTL_MACOSX_LIBS"; then
+ if test "$gt_use_preinstalled_gnugettext" = "yes" \
+ || test "$nls_cv_use_gnu_gettext" = "yes"; then
+ dnl Some extra flags are needed during linking.
+ LIBINTL="$LIBINTL $INTL_MACOSX_LIBS"
+ LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS"
+ fi
+ fi
+
+ if test "$gt_use_preinstalled_gnugettext" = "yes" \
+ || test "$nls_cv_use_gnu_gettext" = "yes"; then
+ AC_DEFINE(ENABLE_NLS, 1,
+ [Define to 1 if translation of program messages to the user's native language
+ is requested.])
+ else
+ USE_NLS=no
+ fi
+ fi
+
+ AC_MSG_CHECKING([whether to use NLS])
+ AC_MSG_RESULT([$USE_NLS])
+ if test "$USE_NLS" = "yes"; then
+ AC_MSG_CHECKING([where the gettext function comes from])
+ if test "$gt_use_preinstalled_gnugettext" = "yes"; then
+ if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
+ gt_source="external libintl"
+ else
+ gt_source="libc"
+ fi
+ else
+ gt_source="included intl directory"
+ fi
+ AC_MSG_RESULT([$gt_source])
+ fi
+
+ if test "$USE_NLS" = "yes"; then
+
+ if test "$gt_use_preinstalled_gnugettext" = "yes"; then
+ if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
+ AC_MSG_CHECKING([how to link with libintl])
+ AC_MSG_RESULT([$LIBINTL])
+ AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
+ fi
+
+ dnl For backward compatibility. Some packages may be using this.
+ AC_DEFINE(HAVE_GETTEXT, 1,
+ [Define if the GNU gettext() function is already present or preinstalled.])
+ AC_DEFINE(HAVE_DCGETTEXT, 1,
+ [Define if the GNU dcgettext() function is already present or preinstalled.])
+ fi
+
+ dnl We need to process the po/ directory.
+ POSUB=po
+ fi
+
+ ifelse(gt_included_intl, yes, [
+ dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
+ dnl to 'yes' because some of the testsuite requires it.
+ if test "$PACKAGE" = gettext-runtime || test "$PACKAGE" = gettext-tools; then
+ BUILD_INCLUDED_LIBINTL=yes
+ fi
+
+ dnl Make all variables we use known to autoconf.
+ AC_SUBST(BUILD_INCLUDED_LIBINTL)
+ AC_SUBST(USE_INCLUDED_LIBINTL)
+ AC_SUBST(CATOBJEXT)
+
+ dnl For backward compatibility. Some configure.ins may be using this.
+ nls_cv_header_intl=
+ nls_cv_header_libgt=
+
+ dnl For backward compatibility. Some Makefiles may be using this.
+ DATADIRNAME=share
+ AC_SUBST(DATADIRNAME)
+
+ dnl For backward compatibility. Some Makefiles may be using this.
+ INSTOBJEXT=.mo
+ AC_SUBST(INSTOBJEXT)
+
+ dnl For backward compatibility. Some Makefiles may be using this.
+ GENCAT=gencat
+ AC_SUBST(GENCAT)
+
+ dnl For backward compatibility. Some Makefiles may be using this.
+ INTLOBJS=
+ if test "$USE_INCLUDED_LIBINTL" = yes; then
+ INTLOBJS="\$(GETTOBJS)"
+ fi
+ AC_SUBST(INTLOBJS)
+
+ dnl Enable libtool support if the surrounding package wishes it.
+ INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
+ AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
+ ])
+
+ dnl For backward compatibility. Some Makefiles may be using this.
+ INTLLIBS="$LIBINTL"
+ AC_SUBST(INTLLIBS)
+
+ dnl Make all documented variables known to autoconf.
+ AC_SUBST(LIBINTL)
+ AC_SUBST(LTLIBINTL)
+ AC_SUBST(POSUB)
+])
+
+
+dnl Checks for all prerequisites of the intl subdirectory,
+dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
+dnl USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
+ AC_DEFUN([AM_INTL_SUBDIR], [])
+
+
+dnl Checks for special options needed on MacOS X.
+dnl Defines INTL_MACOSX_LIBS.
+AC_DEFUN([gt_INTL_MACOSX],
+[
+ dnl Check for API introduced in MacOS X 10.2.
+ AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
+ gt_cv_func_CFPreferencesCopyAppValue,
+ [gt_save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers"
+ gt_save_LIBS="$LIBS"
+ LIBS="$LIBS -framework CoreFoundation"
+ AC_TRY_LINK([#include <CFPreferences.h>],
+ [CFPreferencesCopyAppValue(NULL, NULL)],
+ [gt_cv_func_CFPreferencesCopyAppValue=yes],
+ [gt_cv_func_CFPreferencesCopyAppValue=no])
+ CPPFLAGS="$gt_save_CPPFLAGS"
+ LIBS="$gt_save_LIBS"])
+ if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
+ AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], 1,
+ [Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in the CoreFoundation framework.])
+ fi
+ dnl Check for API introduced in MacOS X 10.3.
+ AC_CACHE_CHECK([for CFLocaleCopyCurrent], gt_cv_func_CFLocaleCopyCurrent,
+ [gt_save_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS -I/System/Library/Frameworks/CoreFoundation.framework/Headers"
+ gt_save_LIBS="$LIBS"
+ LIBS="$LIBS -framework CoreFoundation"
+ AC_TRY_LINK([#include <CFLocale.h>], [CFLocaleCopyCurrent();],
+ [gt_cv_func_CFLocaleCopyCurrent=yes],
+ [gt_cv_func_CFLocaleCopyCurrent=no])
+ CPPFLAGS="$gt_save_CPPFLAGS"
+ LIBS="$gt_save_LIBS"])
+ if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+ AC_DEFINE([HAVE_CFLOCALECOPYCURRENT], 1,
+ [Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the CoreFoundation framework.])
+ fi
+ INTL_MACOSX_LIBS=
+ if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+ INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+ fi
+ AC_SUBST([INTL_MACOSX_LIBS])
+])
+
+
+dnl gt_CHECK_DECL(FUNC, INCLUDES)
+dnl Check whether a function is declared.
+AC_DEFUN([gt_CHECK_DECL],
+[
+ AC_CACHE_CHECK([whether $1 is declared], ac_cv_have_decl_$1,
+ [AC_TRY_COMPILE([$2], [
+#ifndef $1
+ char *p = (char *) $1;
+#endif
+], ac_cv_have_decl_$1=yes, ac_cv_have_decl_$1=no)])
+ if test $ac_cv_have_decl_$1 = yes; then
+ gt_value=1
+ else
+ gt_value=0
+ fi
+ AC_DEFINE_UNQUOTED([HAVE_DECL_]translit($1, [a-z], [A-Z]), [$gt_value],
+ [Define to 1 if you have the declaration of `$1', and to 0 if you don't.])
+])
+
+
+dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
+AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])
diff --git a/m4/gnulib.m4 b/m4/gnulib.m4
new file mode 100644
index 0000000..2acf101
--- /dev/null
+++ b/m4/gnulib.m4
@@ -0,0 +1,66 @@
+# This file is generated automatically by "bootstrap".
+AC_DEFUN([GNULIB_AUTOCONF_SNIPPET],[
+
+gl_DIRNAME
+
+gl_ERROR
+
+
+gl_EXITFAIL
+
+dnl gl_USE_SYSTEM_EXTENSIONS must be added quite early to configure.ac.
+
+gl_GETOPT
+
+AM_GNU_GETTEXT([external])
+AM_GNU_GETTEXT_VERSION([0.14.5])
+
+
+gl_HARD_LOCALE
+
+gl_HASH
+
+
+AC_FUNC_MALLOC
+
+gl_MBSWIDTH
+
+gl_OBSTACK
+
+gl_QUOTE
+
+gl_QUOTEARG
+
+AM_STDBOOL_H
+
+gl_STDIO_SAFER
+
+gl_FUNC_STPCPY
+
+gl_FUNC_STRDUP
+
+gl_FUNC_STRERROR
+
+gl_FUNC_STRNDUP
+
+gl_FUNC_STRNLEN
+
+gl_FUNC_STRTOL
+
+gl_FUNC_STRTOUL
+
+gl_FUNC_STRVERSCMP
+
+gl_HEADER_UNISTD
+
+gl_UNISTD_SAFER
+
+gl_FUNC_GLIBC_UNLOCKED_IO
+
+
+gl_XALLOC
+
+
+gl_XSTRNDUP
+
+])
diff --git a/m4/hard-locale.m4 b/m4/hard-locale.m4
new file mode 100644
index 0000000..640a755
--- /dev/null
+++ b/m4/hard-locale.m4
@@ -0,0 +1,12 @@
+# hard-locale.m4 serial 6
+dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl No prerequisites of lib/hard-locale.c.
+AC_DEFUN([gl_HARD_LOCALE],
+[
+ AC_LIBSOURCES([hard-locale.c, hard-locale.h])
+ AC_LIBOBJ([hard-locale])
+])
diff --git a/m4/hash.m4 b/m4/hash.m4
new file mode 100644
index 0000000..948dd97
--- /dev/null
+++ b/m4/hash.m4
@@ -0,0 +1,14 @@
+# hash.m4 serial 5
+dnl Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_HASH],
+[
+ AC_LIBSOURCES([hash.c, hash.h])
+ AC_LIBOBJ([hash])
+
+ dnl Prerequisites of lib/hash.c.
+ AC_REQUIRE([AM_STDBOOL_H])
+])
diff --git a/m4/iconv.m4 b/m4/iconv.m4
new file mode 100644
index 0000000..654c415
--- /dev/null
+++ b/m4/iconv.m4
@@ -0,0 +1,101 @@
+# iconv.m4 serial AM4 (gettext-0.11.3)
+dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+AC_DEFUN([AM_ICONV_LINKFLAGS_BODY],
+[
+ dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
+ AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
+ AC_REQUIRE([AC_LIB_RPATH])
+
+ dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
+ dnl accordingly.
+ AC_LIB_LINKFLAGS_BODY([iconv])
+])
+
+AC_DEFUN([AM_ICONV_LINK],
+[
+ dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
+ dnl those with the standalone portable GNU libiconv installed).
+
+ dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
+ dnl accordingly.
+ AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
+
+ dnl Add $INCICONV to CPPFLAGS before performing the following checks,
+ dnl because if the user has installed libiconv and not disabled its use
+ dnl via --without-libiconv-prefix, he wants to use it. The first
+ dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.
+ am_save_CPPFLAGS="$CPPFLAGS"
+ AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
+
+ AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
+ am_cv_func_iconv="no, consider installing GNU libiconv"
+ am_cv_lib_iconv=no
+ AC_TRY_LINK([#include <stdlib.h>
+#include <iconv.h>],
+ [iconv_t cd = iconv_open("","");
+ iconv(cd,NULL,NULL,NULL,NULL);
+ iconv_close(cd);],
+ am_cv_func_iconv=yes)
+ if test "$am_cv_func_iconv" != yes; then
+ am_save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBICONV"
+ AC_TRY_LINK([#include <stdlib.h>
+#include <iconv.h>],
+ [iconv_t cd = iconv_open("","");
+ iconv(cd,NULL,NULL,NULL,NULL);
+ iconv_close(cd);],
+ am_cv_lib_iconv=yes
+ am_cv_func_iconv=yes)
+ LIBS="$am_save_LIBS"
+ fi
+ ])
+ if test "$am_cv_func_iconv" = yes; then
+ AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
+ fi
+ if test "$am_cv_lib_iconv" = yes; then
+ AC_MSG_CHECKING([how to link with libiconv])
+ AC_MSG_RESULT([$LIBICONV])
+ else
+ dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
+ dnl either.
+ CPPFLAGS="$am_save_CPPFLAGS"
+ LIBICONV=
+ LTLIBICONV=
+ fi
+ AC_SUBST(LIBICONV)
+ AC_SUBST(LTLIBICONV)
+])
+
+AC_DEFUN([AM_ICONV],
+[
+ AM_ICONV_LINK
+ if test "$am_cv_func_iconv" = yes; then
+ AC_MSG_CHECKING([for iconv declaration])
+ AC_CACHE_VAL(am_cv_proto_iconv, [
+ AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <iconv.h>
+extern
+#ifdef __cplusplus
+"C"
+#endif
+#if defined(__STDC__) || defined(__cplusplus)
+size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
+#else
+size_t iconv();
+#endif
+], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
+ am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
+ am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
+ AC_MSG_RESULT([$]{ac_t:-
+ }[$]am_cv_proto_iconv)
+ AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
+ [Define as const if the declaration of iconv() needs const.])
+ fi
+])
diff --git a/m4/inttypes_h_gl.m4 b/m4/inttypes_h_gl.m4
new file mode 100644
index 0000000..a5d075d
--- /dev/null
+++ b/m4/inttypes_h_gl.m4
@@ -0,0 +1,26 @@
+# inttypes_h.m4 serial 6
+dnl Copyright (C) 1997-2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Paul Eggert.
+
+# Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
+# doesn't clash with <sys/types.h>, and declares uintmax_t.
+
+AC_DEFUN([gl_AC_HEADER_INTTYPES_H],
+[
+ AC_CACHE_CHECK([for inttypes.h], gl_cv_header_inttypes_h,
+ [AC_TRY_COMPILE(
+ [#include <sys/types.h>
+#include <inttypes.h>],
+ [uintmax_t i = (uintmax_t) -1;],
+ gl_cv_header_inttypes_h=yes,
+ gl_cv_header_inttypes_h=no)])
+ if test $gl_cv_header_inttypes_h = yes; then
+ AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H_WITH_UINTMAX, 1,
+ [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
+ and declares uintmax_t. ])
+ fi
+])
diff --git a/m4/lib-ld_gl.m4 b/m4/lib-ld_gl.m4
new file mode 100644
index 0000000..96c4e2c
--- /dev/null
+++ b/m4/lib-ld_gl.m4
@@ -0,0 +1,110 @@
+# lib-ld.m4 serial 3 (gettext-0.13)
+dnl Copyright (C) 1996-2003 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Subroutines of libtool.m4,
+dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision
+dnl with libtool.m4.
+
+dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
+AC_DEFUN([AC_LIB_PROG_LD_GNU],
+[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld,
+[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+ acl_cv_prog_gnu_ld=yes ;;
+*)
+ acl_cv_prog_gnu_ld=no ;;
+esac])
+with_gnu_ld=$acl_cv_prog_gnu_ld
+])
+
+dnl From libtool-1.4. Sets the variable LD.
+AC_DEFUN([AC_LIB_PROG_LD],
+[AC_ARG_WITH(gnu-ld,
+[ --with-gnu-ld assume the C compiler uses GNU ld [default=no]],
+test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+ac_prog=ld
+if test "$GCC" = yes; then
+ # Check if gcc -print-prog-name=ld gives a path.
+ AC_MSG_CHECKING([for ld used by GCC])
+ case $host in
+ *-*-mingw*)
+ # gcc leaves a trailing carriage return which upsets mingw
+ ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+ *)
+ ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+ esac
+ case $ac_prog in
+ # Accept absolute paths.
+ [[\\/]* | [A-Za-z]:[\\/]*)]
+ [re_direlt='/[^/][^/]*/\.\./']
+ # Canonicalize the path of ld
+ ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
+ while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+ ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
+ done
+ test -z "$LD" && LD="$ac_prog"
+ ;;
+ "")
+ # If it fails, then pretend we aren't using GCC.
+ ac_prog=ld
+ ;;
+ *)
+ # If it is relative, then search for the first ld in PATH.
+ with_gnu_ld=unknown
+ ;;
+ esac
+elif test "$with_gnu_ld" = yes; then
+ AC_MSG_CHECKING([for GNU ld])
+else
+ AC_MSG_CHECKING([for non-GNU ld])
+fi
+AC_CACHE_VAL(acl_cv_path_LD,
+[if test -z "$LD"; then
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+ for ac_dir in $PATH; do
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+ acl_cv_path_LD="$ac_dir/$ac_prog"
+ # Check to see if the program is GNU ld. I'd rather use --version,
+ # but apparently some GNU ld's only accept -v.
+ # Break only if it was the GNU/non-GNU ld that we prefer.
+ case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
+ *GNU* | *'with BFD'*)
+ test "$with_gnu_ld" != no && break ;;
+ *)
+ test "$with_gnu_ld" != yes && break ;;
+ esac
+ fi
+ done
+ IFS="$ac_save_ifs"
+else
+ acl_cv_path_LD="$LD" # Let the user override the test with a path.
+fi])
+LD="$acl_cv_path_LD"
+if test -n "$LD"; then
+ AC_MSG_RESULT($LD)
+else
+ AC_MSG_RESULT(no)
+fi
+test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
+AC_LIB_PROG_LD_GNU
+])
diff --git a/m4/lib-link.m4 b/m4/lib-link.m4
new file mode 100644
index 0000000..244a779
--- /dev/null
+++ b/m4/lib-link.m4
@@ -0,0 +1,554 @@
+# lib-link.m4 serial 7 (gettext-0.15)
+dnl Copyright (C) 2001-2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+AC_PREREQ(2.50)
+
+dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
+dnl the libraries corresponding to explicit and implicit dependencies.
+dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and
+dnl augments the CPPFLAGS variable.
+AC_DEFUN([AC_LIB_LINKFLAGS],
+[
+ AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
+ AC_REQUIRE([AC_LIB_RPATH])
+ define([Name],[translit([$1],[./-], [___])])
+ define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
+ [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+ AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
+ AC_LIB_LINKFLAGS_BODY([$1], [$2])
+ ac_cv_lib[]Name[]_libs="$LIB[]NAME"
+ ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME"
+ ac_cv_lib[]Name[]_cppflags="$INC[]NAME"
+ ])
+ LIB[]NAME="$ac_cv_lib[]Name[]_libs"
+ LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs"
+ INC[]NAME="$ac_cv_lib[]Name[]_cppflags"
+ AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
+ AC_SUBST([LIB]NAME)
+ AC_SUBST([LTLIB]NAME)
+ dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the
+ dnl results of this search when this library appears as a dependency.
+ HAVE_LIB[]NAME=yes
+ undefine([Name])
+ undefine([NAME])
+])
+
+dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode)
+dnl searches for libname and the libraries corresponding to explicit and
+dnl implicit dependencies, together with the specified include files and
+dnl the ability to compile and link the specified testcode. If found, it
+dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and
+dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and
+dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs
+dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty.
+AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
+[
+ AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
+ AC_REQUIRE([AC_LIB_RPATH])
+ define([Name],[translit([$1],[./-], [___])])
+ define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
+ [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+
+ dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
+ dnl accordingly.
+ AC_LIB_LINKFLAGS_BODY([$1], [$2])
+
+ dnl Add $INC[]NAME to CPPFLAGS before performing the following checks,
+ dnl because if the user has installed lib[]Name and not disabled its use
+ dnl via --without-lib[]Name-prefix, he wants to use it.
+ ac_save_CPPFLAGS="$CPPFLAGS"
+ AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
+
+ AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
+ ac_save_LIBS="$LIBS"
+ LIBS="$LIBS $LIB[]NAME"
+ AC_TRY_LINK([$3], [$4], [ac_cv_lib[]Name=yes], [ac_cv_lib[]Name=no])
+ LIBS="$ac_save_LIBS"
+ ])
+ if test "$ac_cv_lib[]Name" = yes; then
+ HAVE_LIB[]NAME=yes
+ AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the $1 library.])
+ AC_MSG_CHECKING([how to link with lib[]$1])
+ AC_MSG_RESULT([$LIB[]NAME])
+ else
+ HAVE_LIB[]NAME=no
+ dnl If $LIB[]NAME didn't lead to a usable library, we don't need
+ dnl $INC[]NAME either.
+ CPPFLAGS="$ac_save_CPPFLAGS"
+ LIB[]NAME=
+ LTLIB[]NAME=
+ fi
+ AC_SUBST([HAVE_LIB]NAME)
+ AC_SUBST([LIB]NAME)
+ AC_SUBST([LTLIB]NAME)
+ undefine([Name])
+ undefine([NAME])
+])
+
+dnl Determine the platform dependent parameters needed to use rpath:
+dnl libext, shlibext, hardcode_libdir_flag_spec, hardcode_libdir_separator,
+dnl hardcode_direct, hardcode_minus_L.
+AC_DEFUN([AC_LIB_RPATH],
+[
+ dnl Tell automake >= 1.10 to complain if config.rpath is missing.
+ m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])])
+ AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS
+ AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host
+ AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
+ AC_CACHE_CHECK([for shared library run path origin], acl_cv_rpath, [
+ CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
+ ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
+ . ./conftest.sh
+ rm -f ./conftest.sh
+ acl_cv_rpath=done
+ ])
+ wl="$acl_cv_wl"
+ libext="$acl_cv_libext"
+ shlibext="$acl_cv_shlibext"
+ hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
+ hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
+ hardcode_direct="$acl_cv_hardcode_direct"
+ hardcode_minus_L="$acl_cv_hardcode_minus_L"
+ dnl Determine whether the user wants rpath handling at all.
+ AC_ARG_ENABLE(rpath,
+ [ --disable-rpath do not hardcode runtime library paths],
+ :, enable_rpath=yes)
+])
+
+dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and
+dnl the libraries corresponding to explicit and implicit dependencies.
+dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables.
+AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
+[
+ AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
+ define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
+ [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+ dnl By default, look in $includedir and $libdir.
+ use_additional=yes
+ AC_LIB_WITH_FINAL_PREFIX([
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+ ])
+ AC_LIB_ARG_WITH([lib$1-prefix],
+[ --with-lib$1-prefix[=DIR] search for lib$1 in DIR/include and DIR/lib
+ --without-lib$1-prefix don't search for lib$1 in includedir and libdir],
+[
+ if test "X$withval" = "Xno"; then
+ use_additional=no
+ else
+ if test "X$withval" = "X"; then
+ AC_LIB_WITH_FINAL_PREFIX([
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+ ])
+ else
+ additional_includedir="$withval/include"
+ additional_libdir="$withval/$acl_libdirstem"
+ fi
+ fi
+])
+ dnl Search the library and its dependencies in $additional_libdir and
+ dnl $LDFLAGS. Using breadth-first-seach.
+ LIB[]NAME=
+ LTLIB[]NAME=
+ INC[]NAME=
+ rpathdirs=
+ ltrpathdirs=
+ names_already_handled=
+ names_next_round='$1 $2'
+ while test -n "$names_next_round"; do
+ names_this_round="$names_next_round"
+ names_next_round=
+ for name in $names_this_round; do
+ already_handled=
+ for n in $names_already_handled; do
+ if test "$n" = "$name"; then
+ already_handled=yes
+ break
+ fi
+ done
+ if test -z "$already_handled"; then
+ names_already_handled="$names_already_handled $name"
+ dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
+ dnl or AC_LIB_HAVE_LINKFLAGS call.
+ uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
+ eval value=\"\$HAVE_LIB$uppername\"
+ if test -n "$value"; then
+ if test "$value" = yes; then
+ eval value=\"\$LIB$uppername\"
+ test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value"
+ eval value=\"\$LTLIB$uppername\"
+ test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value"
+ else
+ dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined
+ dnl that this library doesn't exist. So just drop it.
+ :
+ fi
+ else
+ dnl Search the library lib$name in $additional_libdir and $LDFLAGS
+ dnl and the already constructed $LIBNAME/$LTLIBNAME.
+ found_dir=
+ found_la=
+ found_so=
+ found_a=
+ if test $use_additional = yes; then
+ if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then
+ found_dir="$additional_libdir"
+ found_so="$additional_libdir/lib$name.$shlibext"
+ if test -f "$additional_libdir/lib$name.la"; then
+ found_la="$additional_libdir/lib$name.la"
+ fi
+ else
+ if test -f "$additional_libdir/lib$name.$libext"; then
+ found_dir="$additional_libdir"
+ found_a="$additional_libdir/lib$name.$libext"
+ if test -f "$additional_libdir/lib$name.la"; then
+ found_la="$additional_libdir/lib$name.la"
+ fi
+ fi
+ fi
+ fi
+ if test "X$found_dir" = "X"; then
+ for x in $LDFLAGS $LTLIB[]NAME; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ case "$x" in
+ -L*)
+ dir=`echo "X$x" | sed -e 's/^X-L//'`
+ if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then
+ found_dir="$dir"
+ found_so="$dir/lib$name.$shlibext"
+ if test -f "$dir/lib$name.la"; then
+ found_la="$dir/lib$name.la"
+ fi
+ else
+ if test -f "$dir/lib$name.$libext"; then
+ found_dir="$dir"
+ found_a="$dir/lib$name.$libext"
+ if test -f "$dir/lib$name.la"; then
+ found_la="$dir/lib$name.la"
+ fi
+ fi
+ fi
+ ;;
+ esac
+ if test "X$found_dir" != "X"; then
+ break
+ fi
+ done
+ fi
+ if test "X$found_dir" != "X"; then
+ dnl Found the library.
+ LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name"
+ if test "X$found_so" != "X"; then
+ dnl Linking with a shared library. We attempt to hardcode its
+ dnl directory into the executable's runpath, unless it's the
+ dnl standard /usr/lib.
+ if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/$acl_libdirstem"; then
+ dnl No hardcoding is needed.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
+ else
+ dnl Use an explicit option to hardcode DIR into the resulting
+ dnl binary.
+ dnl Potentially add DIR to ltrpathdirs.
+ dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
+ haveit=
+ for x in $ltrpathdirs; do
+ if test "X$x" = "X$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ ltrpathdirs="$ltrpathdirs $found_dir"
+ fi
+ dnl The hardcoding into $LIBNAME is system dependent.
+ if test "$hardcode_direct" = yes; then
+ dnl Using DIR/libNAME.so during linking hardcodes DIR into the
+ dnl resulting binary.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
+ else
+ if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
+ dnl Use an explicit option to hardcode DIR into the resulting
+ dnl binary.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
+ dnl Potentially add DIR to rpathdirs.
+ dnl The rpathdirs will be appended to $LIBNAME at the end.
+ haveit=
+ for x in $rpathdirs; do
+ if test "X$x" = "X$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ rpathdirs="$rpathdirs $found_dir"
+ fi
+ else
+ dnl Rely on "-L$found_dir".
+ dnl But don't add it if it's already contained in the LDFLAGS
+ dnl or the already constructed $LIBNAME
+ haveit=
+ for x in $LDFLAGS $LIB[]NAME; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ if test "X$x" = "X-L$found_dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir"
+ fi
+ if test "$hardcode_minus_L" != no; then
+ dnl FIXME: Not sure whether we should use
+ dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
+ dnl here.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
+ else
+ dnl We cannot use $hardcode_runpath_var and LD_RUN_PATH
+ dnl here, because this doesn't fit in flags passed to the
+ dnl compiler. So give up. No hardcoding. This affects only
+ dnl very old systems.
+ dnl FIXME: Not sure whether we should use
+ dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
+ dnl here.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
+ fi
+ fi
+ fi
+ fi
+ else
+ if test "X$found_a" != "X"; then
+ dnl Linking with a static library.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a"
+ else
+ dnl We shouldn't come here, but anyway it's good to have a
+ dnl fallback.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name"
+ fi
+ fi
+ dnl Assume the include files are nearby.
+ additional_includedir=
+ case "$found_dir" in
+ */$acl_libdirstem | */$acl_libdirstem/)
+ basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
+ additional_includedir="$basedir/include"
+ ;;
+ esac
+ if test "X$additional_includedir" != "X"; then
+ dnl Potentially add $additional_includedir to $INCNAME.
+ dnl But don't add it
+ dnl 1. if it's the standard /usr/include,
+ dnl 2. if it's /usr/local/include and we are using GCC on Linux,
+ dnl 3. if it's already present in $CPPFLAGS or the already
+ dnl constructed $INCNAME,
+ dnl 4. if it doesn't exist as a directory.
+ if test "X$additional_includedir" != "X/usr/include"; then
+ haveit=
+ if test "X$additional_includedir" = "X/usr/local/include"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ for x in $CPPFLAGS $INC[]NAME; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ if test "X$x" = "X-I$additional_includedir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_includedir"; then
+ dnl Really add $additional_includedir to $INCNAME.
+ INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir"
+ fi
+ fi
+ fi
+ fi
+ fi
+ dnl Look for dependencies.
+ if test -n "$found_la"; then
+ dnl Read the .la file. It defines the variables
+ dnl dlname, library_names, old_library, dependency_libs, current,
+ dnl age, revision, installed, dlopen, dlpreopen, libdir.
+ save_libdir="$libdir"
+ case "$found_la" in
+ */* | *\\*) . "$found_la" ;;
+ *) . "./$found_la" ;;
+ esac
+ libdir="$save_libdir"
+ dnl We use only dependency_libs.
+ for dep in $dependency_libs; do
+ case "$dep" in
+ -L*)
+ additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
+ dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME.
+ dnl But don't add it
+ dnl 1. if it's the standard /usr/lib,
+ dnl 2. if it's /usr/local/lib and we are using GCC on Linux,
+ dnl 3. if it's already present in $LDFLAGS or the already
+ dnl constructed $LIBNAME,
+ dnl 4. if it doesn't exist as a directory.
+ if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
+ haveit=
+ if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ haveit=
+ for x in $LDFLAGS $LIB[]NAME; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ if test "X$x" = "X-L$additional_libdir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_libdir"; then
+ dnl Really add $additional_libdir to $LIBNAME.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir"
+ fi
+ fi
+ haveit=
+ for x in $LDFLAGS $LTLIB[]NAME; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ if test "X$x" = "X-L$additional_libdir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test -d "$additional_libdir"; then
+ dnl Really add $additional_libdir to $LTLIBNAME.
+ LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir"
+ fi
+ fi
+ fi
+ fi
+ ;;
+ -R*)
+ dir=`echo "X$dep" | sed -e 's/^X-R//'`
+ if test "$enable_rpath" != no; then
+ dnl Potentially add DIR to rpathdirs.
+ dnl The rpathdirs will be appended to $LIBNAME at the end.
+ haveit=
+ for x in $rpathdirs; do
+ if test "X$x" = "X$dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ rpathdirs="$rpathdirs $dir"
+ fi
+ dnl Potentially add DIR to ltrpathdirs.
+ dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
+ haveit=
+ for x in $ltrpathdirs; do
+ if test "X$x" = "X$dir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ ltrpathdirs="$ltrpathdirs $dir"
+ fi
+ fi
+ ;;
+ -l*)
+ dnl Handle this in the next round.
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
+ ;;
+ *.la)
+ dnl Handle this in the next round. Throw away the .la's
+ dnl directory; it is already contained in a preceding -L
+ dnl option.
+ names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
+ ;;
+ *)
+ dnl Most likely an immediate library name.
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep"
+ LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep"
+ ;;
+ esac
+ done
+ fi
+ else
+ dnl Didn't find the library; assume it is in the system directories
+ dnl known to the linker and runtime loader. (All the system
+ dnl directories known to the linker should also be known to the
+ dnl runtime loader, otherwise the system is severely misconfigured.)
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
+ LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name"
+ fi
+ fi
+ fi
+ done
+ done
+ if test "X$rpathdirs" != "X"; then
+ if test -n "$hardcode_libdir_separator"; then
+ dnl Weird platform: only the last -rpath option counts, the user must
+ dnl pass all path elements in one option. We can arrange that for a
+ dnl single library, but not when more than one $LIBNAMEs are used.
+ alldirs=
+ for found_dir in $rpathdirs; do
+ alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
+ done
+ dnl Note: hardcode_libdir_flag_spec uses $libdir and $wl.
+ acl_save_libdir="$libdir"
+ libdir="$alldirs"
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ libdir="$acl_save_libdir"
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
+ else
+ dnl The -rpath options are cumulative.
+ for found_dir in $rpathdirs; do
+ acl_save_libdir="$libdir"
+ libdir="$found_dir"
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ libdir="$acl_save_libdir"
+ LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
+ done
+ fi
+ fi
+ if test "X$ltrpathdirs" != "X"; then
+ dnl When using libtool, the option that works for both libraries and
+ dnl executables is -R. The -R options are cumulative.
+ for found_dir in $ltrpathdirs; do
+ LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir"
+ done
+ fi
+])
+
+dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR,
+dnl unless already present in VAR.
+dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes
+dnl contains two or three consecutive elements that belong together.
+AC_DEFUN([AC_LIB_APPENDTOVAR],
+[
+ for element in [$2]; do
+ haveit=
+ for x in $[$1]; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ if test "X$x" = "X$element"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ [$1]="${[$1]}${[$1]:+ }$element"
+ fi
+ done
+])
diff --git a/m4/lib-prefix_gl.m4 b/m4/lib-prefix_gl.m4
new file mode 100644
index 0000000..a8684e1
--- /dev/null
+++ b/m4/lib-prefix_gl.m4
@@ -0,0 +1,185 @@
+# lib-prefix.m4 serial 5 (gettext-0.15)
+dnl Copyright (C) 2001-2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
+dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
+dnl require excessive bracketing.
+ifdef([AC_HELP_STRING],
+[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
+[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
+
+dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
+dnl to access previously installed libraries. The basic assumption is that
+dnl a user will want packages to use other packages he previously installed
+dnl with the same --prefix option.
+dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
+dnl libraries, but is otherwise very convenient.
+AC_DEFUN([AC_LIB_PREFIX],
+[
+ AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
+ AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
+ dnl By default, look in $includedir and $libdir.
+ use_additional=yes
+ AC_LIB_WITH_FINAL_PREFIX([
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+ ])
+ AC_LIB_ARG_WITH([lib-prefix],
+[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
+ --without-lib-prefix don't search for libraries in includedir and libdir],
+[
+ if test "X$withval" = "Xno"; then
+ use_additional=no
+ else
+ if test "X$withval" = "X"; then
+ AC_LIB_WITH_FINAL_PREFIX([
+ eval additional_includedir=\"$includedir\"
+ eval additional_libdir=\"$libdir\"
+ ])
+ else
+ additional_includedir="$withval/include"
+ additional_libdir="$withval/$acl_libdirstem"
+ fi
+ fi
+])
+ if test $use_additional = yes; then
+ dnl Potentially add $additional_includedir to $CPPFLAGS.
+ dnl But don't add it
+ dnl 1. if it's the standard /usr/include,
+ dnl 2. if it's already present in $CPPFLAGS,
+ dnl 3. if it's /usr/local/include and we are using GCC on Linux,
+ dnl 4. if it doesn't exist as a directory.
+ if test "X$additional_includedir" != "X/usr/include"; then
+ haveit=
+ for x in $CPPFLAGS; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ if test "X$x" = "X-I$additional_includedir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test "X$additional_includedir" = "X/usr/local/include"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux* | gnu* | k*bsd*-gnu) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ if test -d "$additional_includedir"; then
+ dnl Really add $additional_includedir to $CPPFLAGS.
+ CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
+ fi
+ fi
+ fi
+ fi
+ dnl Potentially add $additional_libdir to $LDFLAGS.
+ dnl But don't add it
+ dnl 1. if it's the standard /usr/lib,
+ dnl 2. if it's already present in $LDFLAGS,
+ dnl 3. if it's /usr/local/lib and we are using GCC on Linux,
+ dnl 4. if it doesn't exist as a directory.
+ if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
+ haveit=
+ for x in $LDFLAGS; do
+ AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
+ if test "X$x" = "X-L$additional_libdir"; then
+ haveit=yes
+ break
+ fi
+ done
+ if test -z "$haveit"; then
+ if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
+ if test -n "$GCC"; then
+ case $host_os in
+ linux*) haveit=yes;;
+ esac
+ fi
+ fi
+ if test -z "$haveit"; then
+ if test -d "$additional_libdir"; then
+ dnl Really add $additional_libdir to $LDFLAGS.
+ LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
+ fi
+ fi
+ fi
+ fi
+ fi
+])
+
+dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
+dnl acl_final_exec_prefix, containing the values to which $prefix and
+dnl $exec_prefix will expand at the end of the configure script.
+AC_DEFUN([AC_LIB_PREPARE_PREFIX],
+[
+ dnl Unfortunately, prefix and exec_prefix get only finally determined
+ dnl at the end of configure.
+ if test "X$prefix" = "XNONE"; then
+ acl_final_prefix="$ac_default_prefix"
+ else
+ acl_final_prefix="$prefix"
+ fi
+ if test "X$exec_prefix" = "XNONE"; then
+ acl_final_exec_prefix='${prefix}'
+ else
+ acl_final_exec_prefix="$exec_prefix"
+ fi
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
+ prefix="$acl_save_prefix"
+])
+
+dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
+dnl variables prefix and exec_prefix bound to the values they will have
+dnl at the end of the configure script.
+AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
+[
+ acl_save_prefix="$prefix"
+ prefix="$acl_final_prefix"
+ acl_save_exec_prefix="$exec_prefix"
+ exec_prefix="$acl_final_exec_prefix"
+ $1
+ exec_prefix="$acl_save_exec_prefix"
+ prefix="$acl_save_prefix"
+])
+
+dnl AC_LIB_PREPARE_MULTILIB creates a variable acl_libdirstem, containing
+dnl the basename of the libdir, either "lib" or "lib64".
+AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
+[
+ dnl There is no formal standard regarding lib and lib64. The current
+ dnl practice is that on a system supporting 32-bit and 64-bit instruction
+ dnl sets or ABIs, 64-bit libraries go under $prefix/lib64 and 32-bit
+ dnl libraries go under $prefix/lib. We determine the compiler's default
+ dnl mode by looking at the compiler's library search path. If at least
+ dnl of its elements ends in /lib64 or points to a directory whose absolute
+ dnl pathname ends in /lib64, we assume a 64-bit ABI. Otherwise we use the
+ dnl default, namely "lib".
+ acl_libdirstem=lib
+ searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
+ if test -n "$searchpath"; then
+ acl_save_IFS="${IFS= }"; IFS=":"
+ for searchdir in $searchpath; do
+ if test -d "$searchdir"; then
+ case "$searchdir" in
+ */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
+ *) searchdir=`cd "$searchdir" && pwd`
+ case "$searchdir" in
+ */lib64 ) acl_libdirstem=lib64 ;;
+ esac ;;
+ esac
+ fi
+ done
+ IFS="$acl_save_IFS"
+ fi
+])
diff --git a/m4/m4.m4 b/m4/m4.m4
new file mode 100644
index 0000000..7d8b394
--- /dev/null
+++ b/m4/m4.m4
@@ -0,0 +1,29 @@
+# Copyright 2000 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# BISON_PROG_GNU_M4
+# -----------------
+# Check for GNU m4, at least 1.3 (supports frozen files).
+AC_DEFUN([BISON_PROG_GNU_M4],
+[AC_PATH_PROGS(M4, gm4 gnum4 m4, m4)
+AC_CACHE_CHECK(whether m4 supports frozen files, ac_cv_prog_gnu_m4,
+[ac_cv_prog_gnu_m4=no
+if test x"$M4" != x; then
+ case `$M4 --help < /dev/null 2>&1` in
+ *reload-state*) ac_cv_prog_gnu_m4=yes ;;
+ esac
+fi])])
diff --git a/m4/mbrtowc.m4 b/m4/mbrtowc.m4
new file mode 100644
index 0000000..a3bd911
--- /dev/null
+++ b/m4/mbrtowc.m4
@@ -0,0 +1,31 @@
+# mbrtowc.m4 serial 8
+dnl Copyright (C) 2001-2002, 2004-2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Paul Eggert
+
+dnl This file can be removed, and gl_FUNC_MBRTOWC replaced with
+dnl AC_FUNC_MBRTOWC, when autoconf 2.60 can be assumed everywhere.
+
+AC_DEFUN([gl_FUNC_MBRTOWC],
+[
+ dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60.
+ AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared],
+ gl_cv_func_mbrtowc,
+ [AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <wchar.h>]],
+ [[wchar_t wc;
+ char const s[] = "";
+ size_t n = 1;
+ mbstate_t state;
+ return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])],
+ gl_cv_func_mbrtowc=yes,
+ gl_cv_func_mbrtowc=no)])
+ if test $gl_cv_func_mbrtowc = yes; then
+ AC_DEFINE([HAVE_MBRTOWC], 1,
+ [Define to 1 if mbrtowc and mbstate_t are properly declared.])
+ fi
+])
diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4
new file mode 100644
index 0000000..df2a275
--- /dev/null
+++ b/m4/mbstate_t.m4
@@ -0,0 +1,30 @@
+# mbstate_t.m4 serial 9
+dnl Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# From Paul Eggert.
+
+# BeOS 5 has <wchar.h> but does not define mbstate_t,
+# so you can't declare an object of that type.
+# Check for this incompatibility with Standard C.
+
+# AC_TYPE_MBSTATE_T
+# -----------------
+AC_DEFUN([AC_TYPE_MBSTATE_T],
+ [AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t,
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT
+# include <wchar.h>],
+ [mbstate_t x; return sizeof x;])],
+ [ac_cv_type_mbstate_t=yes],
+ [ac_cv_type_mbstate_t=no])])
+ if test $ac_cv_type_mbstate_t = yes; then
+ AC_DEFINE([HAVE_MBSTATE_T], 1,
+ [Define to 1 if <wchar.h> declares mbstate_t.])
+ else
+ AC_DEFINE([mbstate_t], int,
+ [Define to a type if <wchar.h> does not define.])
+ fi])
diff --git a/m4/mbswidth.m4 b/m4/mbswidth.m4
new file mode 100644
index 0000000..878e531
--- /dev/null
+++ b/m4/mbswidth.m4
@@ -0,0 +1,59 @@
+# mbswidth.m4 serial 11
+dnl Copyright (C) 2000-2002, 2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl autoconf tests required for use of mbswidth.c
+dnl From Bruno Haible.
+
+AC_DEFUN([gl_MBSWIDTH],
+[
+ AC_CHECK_HEADERS_ONCE(wchar.h wctype.h)
+ AC_CHECK_FUNCS_ONCE(isascii iswprint mbsinit)
+ AC_CHECK_FUNCS(iswcntrl wcwidth)
+ gl_FUNC_MBRTOWC
+
+ AC_CACHE_CHECK([whether wcwidth is declared], ac_cv_have_decl_wcwidth,
+ [AC_TRY_COMPILE([
+/* AIX 3.2.5 declares wcwidth in <string.h>. */
+#if HAVE_STRING_H
+# include <string.h>
+#endif
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+], [
+#ifndef wcwidth
+ char *p = (char *) wcwidth;
+#endif
+], ac_cv_have_decl_wcwidth=yes, ac_cv_have_decl_wcwidth=no)])
+ if test $ac_cv_have_decl_wcwidth = yes; then
+ ac_val=1
+ else
+ ac_val=0
+ fi
+ AC_DEFINE_UNQUOTED(HAVE_DECL_WCWIDTH, $ac_val,
+ [Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.])
+
+ dnl UnixWare 7.1.1 <wchar.h> has a declaration of a function mbswidth()
+ dnl that clashes with ours.
+ AC_CACHE_CHECK([whether mbswidth is declared in <wchar.h>],
+ ac_cv_have_decl_mbswidth,
+ [AC_TRY_COMPILE([
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+], [
+ char *p = (char *) mbswidth;
+], ac_cv_have_decl_mbswidth=yes, ac_cv_have_decl_mbswidth=no)])
+ if test $ac_cv_have_decl_mbswidth = yes; then
+ ac_val=1
+ else
+ ac_val=0
+ fi
+ AC_DEFINE_UNQUOTED(HAVE_DECL_MBSWIDTH_IN_WCHAR_H, $ac_val,
+ [Define to 1 if you have a declaration of mbswidth() in <wchar.h>, and to 0 otherwise.])
+
+ AC_TYPE_MBSTATE_T
+])
diff --git a/m4/nls.m4 b/m4/nls.m4
new file mode 100644
index 0000000..2082c3b
--- /dev/null
+++ b/m4/nls.m4
@@ -0,0 +1,51 @@
+# nls.m4 serial 2 (gettext-0.14.3)
+dnl Copyright (C) 1995-2003, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Authors:
+dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
+dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003.
+
+AC_PREREQ(2.50)
+
+AC_DEFUN([AM_NLS],
+[
+ AC_MSG_CHECKING([whether NLS is requested])
+ dnl Default is enabled NLS
+ AC_ARG_ENABLE(nls,
+ [ --disable-nls do not use Native Language Support],
+ USE_NLS=$enableval, USE_NLS=yes)
+ AC_MSG_RESULT($USE_NLS)
+ AC_SUBST(USE_NLS)
+])
+
+AC_DEFUN([AM_MKINSTALLDIRS],
+[
+ dnl Tell automake >= 1.10 to complain if mkinstalldirs is missing.
+ m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([mkinstalldirs])])
+ dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
+ dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
+ dnl Try to locate it.
+ MKINSTALLDIRS=
+ if test -n "$ac_aux_dir"; then
+ case "$ac_aux_dir" in
+ /*) MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs" ;;
+ *) MKINSTALLDIRS="\$(top_builddir)/$ac_aux_dir/mkinstalldirs" ;;
+ esac
+ fi
+ if test -z "$MKINSTALLDIRS"; then
+ MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
+ fi
+ AC_SUBST(MKINSTALLDIRS)
+])
diff --git a/m4/obstack.m4 b/m4/obstack.m4
new file mode 100644
index 0000000..ea60f7f
--- /dev/null
+++ b/m4/obstack.m4
@@ -0,0 +1,23 @@
+# obstack.m4 serial 4
+dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_OBSTACK],
+[
+ AC_FUNC_OBSTACK
+ dnl Note: AC_FUNC_OBSTACK does AC_LIBSOURCES([obstack.h, obstack.c]).
+ if test $ac_cv_func_obstack = no; then
+ gl_PREREQ_OBSTACK
+ fi
+])
+
+# Prerequisites of lib/obstack.c.
+AC_DEFUN([gl_PREREQ_OBSTACK],
+[
+ AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
+ AC_REQUIRE([gl_AC_HEADER_STDINT_H])
+ AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])
+ :
+])
diff --git a/m4/onceonly.m4 b/m4/onceonly.m4
new file mode 100644
index 0000000..14d3c0b
--- /dev/null
+++ b/m4/onceonly.m4
@@ -0,0 +1,86 @@
+# onceonly_2_57.m4 serial 3
+dnl Copyright (C) 2002-2003, 2005 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License. As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+
+dnl This file defines some "once only" variants of standard autoconf macros.
+dnl AC_CHECK_HEADERS_ONCE like AC_CHECK_HEADERS
+dnl AC_CHECK_FUNCS_ONCE like AC_CHECK_FUNCS
+dnl AC_CHECK_DECLS_ONCE like AC_CHECK_DECLS
+dnl AC_REQUIRE([AC_HEADER_STDC]) like AC_HEADER_STDC
+dnl The advantage is that the check for each of the headers/functions/decls
+dnl will be put only once into the 'configure' file. It keeps the size of
+dnl the 'configure' file down, and avoids redundant output when 'configure'
+dnl is run.
+dnl The drawback is that the checks cannot be conditionalized. If you write
+dnl if some_condition; then gl_CHECK_HEADERS(stdlib.h); fi
+dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to
+dnl empty, and the check will be inserted before the body of the AC_DEFUNed
+dnl function.
+
+dnl This is like onceonly.m4, except that it uses diversions to named sections
+dnl DEFAULTS and INIT_PREPARE in order to check all requested headers at once,
+dnl thus reducing the size of 'configure'. Works with autoconf-2.57. The
+dnl size reduction is ca. 9%.
+
+dnl Autoconf version 2.57 or newer is recommended.
+AC_PREREQ(2.57)
+
+# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of
+# AC_CHECK_HEADERS(HEADER1 HEADER2 ...).
+AC_DEFUN([AC_CHECK_HEADERS_ONCE], [
+ :
+ AC_FOREACH([gl_HEADER_NAME], [$1], [
+ AC_DEFUN([gl_CHECK_HEADER_]m4_quote(translit(gl_HEADER_NAME,
+ [./-], [___])), [
+ m4_divert_text([INIT_PREPARE],
+ [gl_header_list="$gl_header_list gl_HEADER_NAME"])
+ gl_HEADERS_EXPANSION
+ AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_HEADER_NAME])),
+ [Define to 1 if you have the <]m4_defn([gl_HEADER_NAME])[> header file.])
+ ])
+ AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(translit(gl_HEADER_NAME,
+ [./-], [___])))
+ ])
+])
+m4_define([gl_HEADERS_EXPANSION], [
+ m4_divert_text([DEFAULTS], [gl_header_list=])
+ AC_CHECK_HEADERS([$gl_header_list])
+ m4_define([gl_HEADERS_EXPANSION], [])
+])
+
+# AC_CHECK_FUNCS_ONCE(FUNC1 FUNC2 ...) is a once-only variant of
+# AC_CHECK_FUNCS(FUNC1 FUNC2 ...).
+AC_DEFUN([AC_CHECK_FUNCS_ONCE], [
+ :
+ AC_FOREACH([gl_FUNC_NAME], [$1], [
+ AC_DEFUN([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]), [
+ m4_divert_text([INIT_PREPARE],
+ [gl_func_list="$gl_func_list gl_FUNC_NAME"])
+ gl_FUNCS_EXPANSION
+ AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_FUNC_NAME])),
+ [Define to 1 if you have the `]m4_defn([gl_FUNC_NAME])[' function.])
+ ])
+ AC_REQUIRE([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]))
+ ])
+])
+m4_define([gl_FUNCS_EXPANSION], [
+ m4_divert_text([DEFAULTS], [gl_func_list=])
+ AC_CHECK_FUNCS([$gl_func_list])
+ m4_define([gl_FUNCS_EXPANSION], [])
+])
+
+# AC_CHECK_DECLS_ONCE(DECL1 DECL2 ...) is a once-only variant of
+# AC_CHECK_DECLS(DECL1, DECL2, ...).
+AC_DEFUN([AC_CHECK_DECLS_ONCE], [
+ :
+ AC_FOREACH([gl_DECL_NAME], [$1], [
+ AC_DEFUN([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]), [
+ AC_CHECK_DECLS(m4_defn([gl_DECL_NAME]))
+ ])
+ AC_REQUIRE([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]))
+ ])
+])
diff --git a/m4/po_gl.m4 b/m4/po_gl.m4
new file mode 100644
index 0000000..f2795ee
--- /dev/null
+++ b/m4/po_gl.m4
@@ -0,0 +1,429 @@
+# po.m4 serial 7 (gettext-0.14.3)
+dnl Copyright (C) 1995-2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Authors:
+dnl Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
+dnl Bruno Haible <haible@clisp.cons.org>, 2000-2003.
+
+AC_PREREQ(2.50)
+
+dnl Checks for all prerequisites of the po subdirectory.
+AC_DEFUN([AM_PO_SUBDIRS],
+[
+ AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+ AC_REQUIRE([AC_PROG_INSTALL])dnl
+ AC_REQUIRE([AM_MKINSTALLDIRS])dnl
+ AC_REQUIRE([AM_NLS])dnl
+
+ dnl Perform the following tests also if --disable-nls has been given,
+ dnl because they are needed for "make dist" to work.
+
+ dnl Search for GNU msgfmt in the PATH.
+ dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions.
+ dnl The second test excludes FreeBSD msgfmt.
+ AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
+ [$ac_dir/$ac_word --statistics /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1 &&
+ (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
+ :)
+ AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
+
+ dnl Search for GNU xgettext 0.12 or newer in the PATH.
+ dnl The first test excludes Solaris xgettext and early GNU xgettext versions.
+ dnl The second test excludes FreeBSD xgettext.
+ AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
+ [$ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1 &&
+ (if $ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
+ :)
+ dnl Remove leftover from FreeBSD xgettext call.
+ rm -f messages.po
+
+ dnl Search for GNU msgmerge 0.11 or newer in the PATH.
+ AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge,
+ [$ac_dir/$ac_word --update -q /dev/null /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1], :)
+
+ dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
+ dnl Test whether we really found GNU msgfmt.
+ if test "$GMSGFMT" != ":"; then
+ dnl If it is no GNU msgfmt we define it as : so that the
+ dnl Makefiles still can work.
+ if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 &&
+ (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
+ : ;
+ else
+ GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'`
+ AC_MSG_RESULT(
+ [found $GMSGFMT program is not GNU msgfmt; ignore it])
+ GMSGFMT=":"
+ fi
+ fi
+
+ dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
+ dnl Test whether we really found GNU xgettext.
+ if test "$XGETTEXT" != ":"; then
+ dnl If it is no GNU xgettext we define it as : so that the
+ dnl Makefiles still can work.
+ if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >/dev/null 2>&1 &&
+ (if $XGETTEXT --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
+ : ;
+ else
+ AC_MSG_RESULT(
+ [found xgettext program is not GNU xgettext; ignore it])
+ XGETTEXT=":"
+ fi
+ dnl Remove leftover from FreeBSD xgettext call.
+ rm -f messages.po
+ fi
+
+ AC_OUTPUT_COMMANDS([
+ for ac_file in $CONFIG_FILES; do
+ # Support "outfile[:infile[:infile...]]"
+ case "$ac_file" in
+ *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+ esac
+ # PO directories have a Makefile.in generated from Makefile.in.in.
+ case "$ac_file" in */Makefile.in)
+ # Adjust a relative srcdir.
+ ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
+ ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+ ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
+ # In autoconf-2.13 it is called $ac_given_srcdir.
+ # In autoconf-2.50 it is called $srcdir.
+ test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
+ case "$ac_given_srcdir" in
+ .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
+ /*) top_srcdir="$ac_given_srcdir" ;;
+ *) top_srcdir="$ac_dots$ac_given_srcdir" ;;
+ esac
+ # Treat a directory as a PO directory if and only if it has a
+ # POTFILES.in file. This allows packages to have multiple PO
+ # directories under different names or in different locations.
+ if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
+ rm -f "$ac_dir/POTFILES"
+ test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
+ cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ ]*\$/d" -e "s,.*, $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES"
+ POMAKEFILEDEPS="POTFILES.in"
+ # ALL_LINGUAS, POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES depend
+ # on $ac_dir but don't depend on user-specified configuration
+ # parameters.
+ if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
+ # The LINGUAS file contains the set of available languages.
+ if test -n "$OBSOLETE_ALL_LINGUAS"; then
+ test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
+ fi
+ ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" "$ac_given_srcdir/$ac_dir/LINGUAS"`
+ # Hide the ALL_LINGUAS assigment from automake.
+ eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
+ POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS"
+ else
+ # The set of available languages was given in configure.in.
+ eval 'ALL_LINGUAS''=$OBSOLETE_ALL_LINGUAS'
+ fi
+ # Compute POFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po)
+ # Compute UPDATEPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).po-update)
+ # Compute DUMMYPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).nop)
+ # Compute GMOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo)
+ case "$ac_given_srcdir" in
+ .) srcdirpre= ;;
+ *) srcdirpre='$(srcdir)/' ;;
+ esac
+ POFILES=
+ UPDATEPOFILES=
+ DUMMYPOFILES=
+ GMOFILES=
+ for lang in $ALL_LINGUAS; do
+ POFILES="$POFILES $srcdirpre$lang.po"
+ UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
+ DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
+ GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
+ done
+ # CATALOGS depends on both $ac_dir and the user's LINGUAS
+ # environment variable.
+ INST_LINGUAS=
+ if test -n "$ALL_LINGUAS"; then
+ for presentlang in $ALL_LINGUAS; do
+ useit=no
+ if test "%UNSET%" != "$LINGUAS"; then
+ desiredlanguages="$LINGUAS"
+ else
+ desiredlanguages="$ALL_LINGUAS"
+ fi
+ for desiredlang in $desiredlanguages; do
+ # Use the presentlang catalog if desiredlang is
+ # a. equal to presentlang, or
+ # b. a variant of presentlang (because in this case,
+ # presentlang can be used as a fallback for messages
+ # which are not translated in the desiredlang catalog).
+ case "$desiredlang" in
+ "$presentlang"*) useit=yes;;
+ esac
+ done
+ if test $useit = yes; then
+ INST_LINGUAS="$INST_LINGUAS $presentlang"
+ fi
+ done
+ fi
+ CATALOGS=
+ if test -n "$INST_LINGUAS"; then
+ for lang in $INST_LINGUAS; do
+ CATALOGS="$CATALOGS $lang.gmo"
+ done
+ fi
+ test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
+ sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" -e "s|@POMAKEFILEDEPS@|$POMAKEFILEDEPS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
+ for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do
+ if test -f "$f"; then
+ case "$f" in
+ *.orig | *.bak | *~) ;;
+ *) cat "$f" >> "$ac_dir/Makefile" ;;
+ esac
+ fi
+ done
+ fi
+ ;;
+ esac
+ done],
+ [# Capture the value of obsolete ALL_LINGUAS because we need it to compute
+ # POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES, CATALOGS. But hide it
+ # from automake.
+ eval 'OBSOLETE_ALL_LINGUAS''="$ALL_LINGUAS"'
+ # Capture the value of LINGUAS because we need it to compute CATALOGS.
+ LINGUAS="${LINGUAS-%UNSET%}"
+ ])
+])
+
+dnl Postprocesses a Makefile in a directory containing PO files.
+AC_DEFUN([AM_POSTPROCESS_PO_MAKEFILE],
+[
+ # When this code is run, in config.status, two variables have already been
+ # set:
+ # - OBSOLETE_ALL_LINGUAS is the value of LINGUAS set in configure.in,
+ # - LINGUAS is the value of the environment variable LINGUAS at configure
+ # time.
+
+changequote(,)dnl
+ # Adjust a relative srcdir.
+ ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
+ ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+ ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
+ # In autoconf-2.13 it is called $ac_given_srcdir.
+ # In autoconf-2.50 it is called $srcdir.
+ test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
+ case "$ac_given_srcdir" in
+ .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
+ /*) top_srcdir="$ac_given_srcdir" ;;
+ *) top_srcdir="$ac_dots$ac_given_srcdir" ;;
+ esac
+
+ # Find a way to echo strings without interpreting backslash.
+ if test "X`(echo '\t') 2>/dev/null`" = 'X\t'; then
+ gt_echo='echo'
+ else
+ if test "X`(printf '%s\n' '\t') 2>/dev/null`" = 'X\t'; then
+ gt_echo='printf %s\n'
+ else
+ echo_func () {
+ cat <<EOT
+$*
+EOT
+ }
+ gt_echo='echo_func'
+ fi
+ fi
+
+ # A sed script that extracts the value of VARIABLE from a Makefile.
+ sed_x_variable='
+# Test if the hold space is empty.
+x
+s/P/P/
+x
+ta
+# Yes it was empty. Look if we have the expected variable definition.
+/^[ ]*VARIABLE[ ]*=/{
+ # Seen the first line of the variable definition.
+ s/^[ ]*VARIABLE[ ]*=//
+ ba
+}
+bd
+:a
+# Here we are processing a line from the variable definition.
+# Remove comment, more precisely replace it with a space.
+s/#.*$/ /
+# See if the line ends in a backslash.
+tb
+:b
+s/\\$//
+# Print the line, without the trailing backslash.
+p
+tc
+# There was no trailing backslash. The end of the variable definition is
+# reached. Clear the hold space.
+s/^.*$//
+x
+bd
+:c
+# A trailing backslash means that the variable definition continues in the
+# next line. Put a nonempty string into the hold space to indicate this.
+s/^.*$/P/
+x
+:d
+'
+changequote([,])dnl
+
+ # Set POTFILES to the value of the Makefile variable POTFILES.
+ sed_x_POTFILES="`$gt_echo \"$sed_x_variable\" | sed -e '/^ *#/d' -e 's/VARIABLE/POTFILES/g'`"
+ POTFILES=`sed -n -e "$sed_x_POTFILES" < "$ac_file"`
+ # Compute POTFILES_DEPS as
+ # $(foreach file, $(POTFILES), $(top_srcdir)/$(file))
+ POTFILES_DEPS=
+ for file in $POTFILES; do
+ POTFILES_DEPS="$POTFILES_DEPS "'$(top_srcdir)/'"$file"
+ done
+ POMAKEFILEDEPS=""
+
+ if test -n "$OBSOLETE_ALL_LINGUAS"; then
+ test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
+ fi
+ if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
+ # The LINGUAS file contains the set of available languages.
+ ALL_LINGUAS_=`sed -e "/^#/d" -e "s/#.*//" "$ac_given_srcdir/$ac_dir/LINGUAS"`
+ POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS"
+ else
+ # Set ALL_LINGUAS to the value of the Makefile variable LINGUAS.
+ sed_x_LINGUAS="`$gt_echo \"$sed_x_variable\" | sed -e '/^ *#/d' -e 's/VARIABLE/LINGUAS/g'`"
+ ALL_LINGUAS_=`sed -n -e "$sed_x_LINGUAS" < "$ac_file"`
+ fi
+ # Hide the ALL_LINGUAS assigment from automake.
+ eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
+ # Compute POFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po)
+ # Compute UPDATEPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).po-update)
+ # Compute DUMMYPOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(lang).nop)
+ # Compute GMOFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo)
+ # Compute PROPERTIESFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(top_srcdir)/$(DOMAIN)_$(lang).properties)
+ # Compute CLASSFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(top_srcdir)/$(DOMAIN)_$(lang).class)
+ # Compute QMFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).qm)
+ # Compute MSGFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(frob $(lang)).msg)
+ # Compute RESOURCESDLLFILES
+ # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(frob $(lang))/$(DOMAIN).resources.dll)
+ case "$ac_given_srcdir" in
+ .) srcdirpre= ;;
+ *) srcdirpre='$(srcdir)/' ;;
+ esac
+ POFILES=
+ UPDATEPOFILES=
+ DUMMYPOFILES=
+ GMOFILES=
+ PROPERTIESFILES=
+ CLASSFILES=
+ QMFILES=
+ MSGFILES=
+ RESOURCESDLLFILES=
+ for lang in $ALL_LINGUAS; do
+ POFILES="$POFILES $srcdirpre$lang.po"
+ UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
+ DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
+ GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
+ PROPERTIESFILES="$PROPERTIESFILES \$(top_srcdir)/\$(DOMAIN)_$lang.properties"
+ CLASSFILES="$CLASSFILES \$(top_srcdir)/\$(DOMAIN)_$lang.class"
+ QMFILES="$QMFILES $srcdirpre$lang.qm"
+ frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
+ MSGFILES="$MSGFILES $srcdirpre$frobbedlang.msg"
+ frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 's/^uz-UZ$/uz-UZ-Latn/'`
+ RESOURCESDLLFILES="$RESOURCESDLLFILES $srcdirpre$frobbedlang/\$(DOMAIN).resources.dll"
+ done
+ # CATALOGS depends on both $ac_dir and the user's LINGUAS
+ # environment variable.
+ INST_LINGUAS=
+ if test -n "$ALL_LINGUAS"; then
+ for presentlang in $ALL_LINGUAS; do
+ useit=no
+ if test "%UNSET%" != "$LINGUAS"; then
+ desiredlanguages="$LINGUAS"
+ else
+ desiredlanguages="$ALL_LINGUAS"
+ fi
+ for desiredlang in $desiredlanguages; do
+ # Use the presentlang catalog if desiredlang is
+ # a. equal to presentlang, or
+ # b. a variant of presentlang (because in this case,
+ # presentlang can be used as a fallback for messages
+ # which are not translated in the desiredlang catalog).
+ case "$desiredlang" in
+ "$presentlang"*) useit=yes;;
+ esac
+ done
+ if test $useit = yes; then
+ INST_LINGUAS="$INST_LINGUAS $presentlang"
+ fi
+ done
+ fi
+ CATALOGS=
+ JAVACATALOGS=
+ QTCATALOGS=
+ TCLCATALOGS=
+ CSHARPCATALOGS=
+ if test -n "$INST_LINGUAS"; then
+ for lang in $INST_LINGUAS; do
+ CATALOGS="$CATALOGS $lang.gmo"
+ JAVACATALOGS="$JAVACATALOGS \$(DOMAIN)_$lang.properties"
+ QTCATALOGS="$QTCATALOGS $lang.qm"
+ frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
+ TCLCATALOGS="$TCLCATALOGS $frobbedlang.msg"
+ frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 's/^uz-UZ$/uz-UZ-Latn/'`
+ CSHARPCATALOGS="$CSHARPCATALOGS $frobbedlang/\$(DOMAIN).resources.dll"
+ done
+ fi
+
+ sed -e "s|@POTFILES_DEPS@|$POTFILES_DEPS|g" -e "s|@POFILES@|$POFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@PROPERTIESFILES@|$PROPERTIESFILES|g" -e "s|@CLASSFILES@|$CLASSFILES|g" -e "s|@QMFILES@|$QMFILES|g" -e "s|@MSGFILES@|$MSGFILES|g" -e "s|@RESOURCESDLLFILES@|$RESOURCESDLLFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" -e "s|@JAVACATALOGS@|$JAVACATALOGS|g" -e "s|@QTCATALOGS@|$QTCATALOGS|g" -e "s|@TCLCATALOGS@|$TCLCATALOGS|g" -e "s|@CSHARPCATALOGS@|$CSHARPCATALOGS|g" -e 's,^#distdir:,distdir:,' < "$ac_file" > "$ac_file.tmp"
+ if grep -l '@TCLCATALOGS@' "$ac_file" > /dev/null; then
+ # Add dependencies that cannot be formulated as a simple suffix rule.
+ for lang in $ALL_LINGUAS; do
+ frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
+ cat >> "$ac_file.tmp" <<EOF
+$frobbedlang.msg: $lang.po
+ @echo "\$(MSGFMT) -c --tcl -d \$(srcdir) -l $lang $srcdirpre$lang.po"; \
+ \$(MSGFMT) -c --tcl -d "\$(srcdir)" -l $lang $srcdirpre$lang.po || { rm -f "\$(srcdir)/$frobbedlang.msg"; exit 1; }
+EOF
+ done
+ fi
+ if grep -l '@CSHARPCATALOGS@' "$ac_file" > /dev/null; then
+ # Add dependencies that cannot be formulated as a simple suffix rule.
+ for lang in $ALL_LINGUAS; do
+ frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 's/^uz-UZ$/uz-UZ-Latn/'`
+ cat >> "$ac_file.tmp" <<EOF
+$frobbedlang/\$(DOMAIN).resources.dll: $lang.po
+ @echo "\$(MSGFMT) -c --csharp -d \$(srcdir) -l $lang $srcdirpre$lang.po -r \$(DOMAIN)"; \
+ \$(MSGFMT) -c --csharp -d "\$(srcdir)" -l $lang $srcdirpre$lang.po -r "\$(DOMAIN)" || { rm -f "\$(srcdir)/$frobbedlang.msg"; exit 1; }
+EOF
+ done
+ fi
+ if test -n "$POMAKEFILEDEPS"; then
+ cat >> "$ac_file.tmp" <<EOF
+Makefile: $POMAKEFILEDEPS
+EOF
+ fi
+ mv "$ac_file.tmp" "$ac_file"
+])
diff --git a/m4/progtest.m4 b/m4/progtest.m4
new file mode 100644
index 0000000..a56365c
--- /dev/null
+++ b/m4/progtest.m4
@@ -0,0 +1,92 @@
+# progtest.m4 serial 4 (gettext-0.14.2)
+dnl Copyright (C) 1996-2003, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Authors:
+dnl Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+AC_PREREQ(2.50)
+
+# Search path for a program which passes the given test.
+
+dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
+dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
+AC_DEFUN([AM_PATH_PROG_WITH_TEST],
+[
+# Prepare PATH_SEPARATOR.
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+# Find out how to test for executable files. Don't use a zero-byte file,
+# as systems may use methods other than mode bits to determine executability.
+cat >conf$$.file <<_ASEOF
+#! /bin/sh
+exit 0
+_ASEOF
+chmod +x conf$$.file
+if test -x conf$$.file >/dev/null 2>&1; then
+ ac_executable_p="test -x"
+else
+ ac_executable_p="test -f"
+fi
+rm -f conf$$.file
+
+# Extract the first word of "$2", so it can be a program name with args.
+set dummy $2; ac_word=[$]2
+AC_MSG_CHECKING([for $ac_word])
+AC_CACHE_VAL(ac_cv_path_$1,
+[case "[$]$1" in
+ [[\\/]]* | ?:[[\\/]]*)
+ ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
+ ;;
+ *)
+ ac_save_IFS="$IFS"; IFS=$PATH_SEPARATOR
+ for ac_dir in ifelse([$5], , $PATH, [$5]); do
+ IFS="$ac_save_IFS"
+ test -z "$ac_dir" && ac_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then
+ echo "$as_me: trying $ac_dir/$ac_word..." >&AS_MESSAGE_LOG_FD
+ if [$3]; then
+ ac_cv_path_$1="$ac_dir/$ac_word$ac_exec_ext"
+ break 2
+ fi
+ fi
+ done
+ done
+ IFS="$ac_save_IFS"
+dnl If no 4th arg is given, leave the cache variable unset,
+dnl so AC_PATH_PROGS will keep looking.
+ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
+])dnl
+ ;;
+esac])dnl
+$1="$ac_cv_path_$1"
+if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
+ AC_MSG_RESULT([$]$1)
+else
+ AC_MSG_RESULT(no)
+fi
+AC_SUBST($1)dnl
+])
diff --git a/m4/quote.m4 b/m4/quote.m4
new file mode 100644
index 0000000..ca66b53
--- /dev/null
+++ b/m4/quote.m4
@@ -0,0 +1,14 @@
+# quote.m4 serial 4
+dnl Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_QUOTE],
+[
+ AC_LIBSOURCES([quote.c, quote.h])
+ AC_LIBOBJ([quote])
+
+ dnl Prerequisites of lib/quote.c.
+ dnl (none)
+])
diff --git a/m4/quotearg.m4 b/m4/quotearg.m4
new file mode 100644
index 0000000..98ae133
--- /dev/null
+++ b/m4/quotearg.m4
@@ -0,0 +1,17 @@
+# quotearg.m4 serial 4
+dnl Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_QUOTEARG],
+[
+ AC_LIBSOURCES([quotearg.c, quotearg.h])
+ AC_LIBOBJ([quotearg])
+
+ dnl Prerequisites of lib/quotearg.c.
+ AC_CHECK_HEADERS_ONCE(wchar.h wctype.h)
+ AC_CHECK_FUNCS_ONCE(iswprint mbsinit)
+ AC_TYPE_MBSTATE_T
+ gl_FUNC_MBRTOWC
+])
diff --git a/m4/stdbool.m4 b/m4/stdbool.m4
new file mode 100644
index 0000000..2204ecd
--- /dev/null
+++ b/m4/stdbool.m4
@@ -0,0 +1,115 @@
+# Check for stdbool.h that conforms to C99.
+
+dnl Copyright (C) 2002-2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# Prepare for substituting <stdbool.h> if it is not supported.
+
+AC_DEFUN([AM_STDBOOL_H],
+[
+ AC_REQUIRE([AC_HEADER_STDBOOL])
+
+ # Define two additional variables used in the Makefile substitution.
+
+ if test "$ac_cv_header_stdbool_h" = yes; then
+ STDBOOL_H=''
+ else
+ STDBOOL_H='stdbool.h'
+ fi
+ AC_SUBST([STDBOOL_H])
+
+ if test "$ac_cv_type__Bool" = yes; then
+ HAVE__BOOL=1
+ else
+ HAVE__BOOL=0
+ fi
+ AC_SUBST([HAVE__BOOL])
+])
+
+# AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future.
+AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H])
+
+# This macro is only needed in autoconf <= 2.59. Newer versions of autoconf
+# have this macro built-in.
+
+AC_DEFUN([AC_HEADER_STDBOOL],
+ [AC_CACHE_CHECK([for stdbool.h that conforms to C99],
+ [ac_cv_header_stdbool_h],
+ [AC_TRY_COMPILE(
+ [
+ #include <stdbool.h>
+ #ifndef bool
+ "error: bool is not defined"
+ #endif
+ #ifndef false
+ "error: false is not defined"
+ #endif
+ #if false
+ "error: false is not 0"
+ #endif
+ #ifndef true
+ "error: true is not defined"
+ #endif
+ #if true != 1
+ "error: true is not 1"
+ #endif
+ #ifndef __bool_true_false_are_defined
+ "error: __bool_true_false_are_defined is not defined"
+ #endif
+
+ struct s { _Bool s: 1; _Bool t; } s;
+
+ char a[true == 1 ? 1 : -1];
+ char b[false == 0 ? 1 : -1];
+ char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+ char d[(bool) 0.5 == true ? 1 : -1];
+ bool e = &s;
+ char f[(_Bool) 0.0 == false ? 1 : -1];
+ char g[true];
+ char h[sizeof (_Bool)];
+ char i[sizeof s.t];
+ enum { j = false, k = true, l = false * true, m = true * 256 };
+ _Bool n[m];
+ char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+ char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+ #if defined __xlc__ || defined __GNUC__
+ /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
+ reported by James Lemley on 2005-10-05; see
+ http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+ This test is not quite right, since xlc is allowed to
+ reject this program, as the initializer for xlcbug is
+ not one of the forms that C requires support for.
+ However, doing the test right would require a run-time
+ test, and that would make cross-compilation harder.
+ Let us hope that IBM fixes the xlc bug, and also adds
+ support for this kind of constant expression. In the
+ meantime, this test will reject xlc, which is OK, since
+ our stdbool.h substitute should suffice. We also test
+ this with GCC, where it should work, to detect more
+ quickly whether someone messes up the test in the
+ future. */
+ char digs[] = "0123456789";
+ int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
+ #endif
+ /* Catch a bug in an HP-UX C compiler. See
+ http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+ http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+ */
+ _Bool q = true;
+ _Bool *pq = &q;
+ ],
+ [
+ *pq |= q;
+ *pq |= ! q;
+ /* Refer to every declared value, to avoid compiler optimizations. */
+ return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+ + !m + !n + !o + !p + !q + !pq);
+ ],
+ [ac_cv_header_stdbool_h=yes],
+ [ac_cv_header_stdbool_h=no])])
+ AC_CHECK_TYPES([_Bool])
+ if test $ac_cv_header_stdbool_h = yes; then
+ AC_DEFINE(HAVE_STDBOOL_H, 1, [Define to 1 if stdbool.h conforms to C99.])
+ fi])
diff --git a/m4/stdint_h_gl.m4 b/m4/stdint_h_gl.m4
new file mode 100644
index 0000000..3355f35
--- /dev/null
+++ b/m4/stdint_h_gl.m4
@@ -0,0 +1,26 @@
+# stdint_h.m4 serial 5
+dnl Copyright (C) 1997-2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Paul Eggert.
+
+# Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists,
+# doesn't clash with <sys/types.h>, and declares uintmax_t.
+
+AC_DEFUN([gl_AC_HEADER_STDINT_H],
+[
+ AC_CACHE_CHECK([for stdint.h], gl_cv_header_stdint_h,
+ [AC_TRY_COMPILE(
+ [#include <sys/types.h>
+#include <stdint.h>],
+ [uintmax_t i = (uintmax_t) -1;],
+ gl_cv_header_stdint_h=yes,
+ gl_cv_header_stdint_h=no)])
+ if test $gl_cv_header_stdint_h = yes; then
+ AC_DEFINE_UNQUOTED(HAVE_STDINT_H_WITH_UINTMAX, 1,
+ [Define if <stdint.h> exists, doesn't clash with <sys/types.h>,
+ and declares uintmax_t. ])
+ fi
+])
diff --git a/m4/stdio-safer.m4 b/m4/stdio-safer.m4
new file mode 100644
index 0000000..cb60acb
--- /dev/null
+++ b/m4/stdio-safer.m4
@@ -0,0 +1,11 @@
+#serial 5
+dnl Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_STDIO_SAFER],
+[
+ AC_LIBSOURCES([fopen-safer.c, stdio-safer.h, stdio--.h])
+ AC_LIBOBJ([fopen-safer])
+])
diff --git a/m4/stpcpy.m4 b/m4/stpcpy.m4
new file mode 100644
index 0000000..ce8d92f
--- /dev/null
+++ b/m4/stpcpy.m4
@@ -0,0 +1,22 @@
+# stpcpy.m4 serial 1
+dnl Copyright (C) 2002 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STPCPY],
+[
+ dnl Persuade glibc <string.h> to declare stpcpy().
+ AC_REQUIRE([AC_GNU_SOURCE])
+
+ AC_REPLACE_FUNCS(stpcpy)
+ if test $ac_cv_func_stpcpy = no; then
+ gl_PREREQ_STPCPY
+ fi
+])
+
+# Prerequisites of lib/stpcpy.c.
+AC_DEFUN([gl_PREREQ_STPCPY], [
+ :
+])
+
diff --git a/m4/strdup.m4 b/m4/strdup.m4
new file mode 100644
index 0000000..42325ab
--- /dev/null
+++ b/m4/strdup.m4
@@ -0,0 +1,17 @@
+# strdup.m4 serial 6
+dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRDUP],
+[
+ AC_LIBSOURCES([strdup.c, strdup.h])
+
+ AC_REPLACE_FUNCS(strdup)
+ AC_CHECK_DECLS_ONCE(strdup)
+ gl_PREREQ_STRDUP
+])
+
+# Prerequisites of lib/strdup.c.
+AC_DEFUN([gl_PREREQ_STRDUP], [:])
diff --git a/m4/strerror.m4 b/m4/strerror.m4
new file mode 100644
index 0000000..32bc7ed
--- /dev/null
+++ b/m4/strerror.m4
@@ -0,0 +1,18 @@
+# strerror.m4 serial 2
+dnl Copyright (C) 2002 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRERROR],
+[
+ AC_REPLACE_FUNCS(strerror)
+ if test $ac_cv_func_strerror = no; then
+ gl_PREREQ_STRERROR
+ fi
+])
+
+# Prerequisites of lib/strerror.c.
+AC_DEFUN([gl_PREREQ_STRERROR], [
+ :
+])
diff --git a/m4/strndup.m4 b/m4/strndup.m4
new file mode 100644
index 0000000..48b15cc
--- /dev/null
+++ b/m4/strndup.m4
@@ -0,0 +1,49 @@
+# strndup.m4 serial 6
+dnl Copyright (C) 2002-2003, 2005-2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRNDUP],
+[
+ AC_LIBSOURCES([strndup.c, strndup.h])
+
+ dnl Persuade glibc <string.h> to declare strndup().
+ AC_REQUIRE([AC_GNU_SOURCE])
+
+ AC_CHECK_DECLS_ONCE([strndup])
+
+ # AIX 4.3.3, AIX 5.1 have a function that fails to add the terminating '\0'.
+ AC_CACHE_CHECK([for working strndup], gl_cv_func_strndup,
+ [AC_RUN_IFELSE([
+ AC_LANG_PROGRAM([#include <string.h>], [[
+#ifndef HAVE_DECL_STRNDUP
+ extern char *strndup (const char *, size_t);
+#endif
+ char *s;
+ s = strndup ("some longer string", 15);
+ free (s);
+ s = strndup ("shorter string", 13);
+ return s[13] != '\0';]])],
+ [gl_cv_func_strndup=yes],
+ [gl_cv_func_strndup=no],
+ [AC_EGREP_CPP([too risky], [
+#ifdef _AIX
+ too risky
+#endif
+ ],
+ [gl_cv_func_strndup=no],
+ [gl_cv_func_strndup=yes])])])
+ if test $gl_cv_func_strndup = yes; then
+ AC_DEFINE([HAVE_STRNDUP], 1,
+ [Define if you have the strndup() function and it works.])
+ else
+ AC_LIBOBJ([strndup])
+ AC_DEFINE(strndup, rpl_strndup,
+ [Define to rpl_strndup if the replacement function should be used,])
+ gl_PREREQ_STRNDUP
+ fi
+])
+
+# Prerequisites of lib/strndup.c.
+AC_DEFUN([gl_PREREQ_STRNDUP], [:])
diff --git a/m4/strnlen.m4 b/m4/strnlen.m4
new file mode 100644
index 0000000..67964c8
--- /dev/null
+++ b/m4/strnlen.m4
@@ -0,0 +1,29 @@
+# strnlen.m4 serial 5
+dnl Copyright (C) 2002-2003, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRNLEN],
+[
+ AC_LIBSOURCES([strnlen.c, strnlen.h])
+
+ dnl Persuade glibc <string.h> to declare strnlen().
+ AC_REQUIRE([AC_GNU_SOURCE])
+
+ AC_FUNC_STRNLEN
+ if test $ac_cv_func_strnlen_working = no; then
+ # This is necessary because automake-1.6.1 doens't understand
+ # that the above use of AC_FUNC_STRNLEN means we may have to use
+ # lib/strnlen.c.
+ #AC_LIBOBJ(strnlen)
+ AC_DEFINE(strnlen, rpl_strnlen,
+ [Define to rpl_strnlen if the replacement function should be used.])
+ gl_PREREQ_STRNLEN
+ fi
+])
+
+# Prerequisites of lib/strnlen.c.
+AC_DEFUN([gl_PREREQ_STRNLEN], [
+ AC_CHECK_DECLS_ONCE(strnlen)
+])
diff --git a/m4/strtol.m4 b/m4/strtol.m4
new file mode 100644
index 0000000..b9308ed
--- /dev/null
+++ b/m4/strtol.m4
@@ -0,0 +1,19 @@
+# strtol.m4 serial 3
+dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRTOL],
+[
+ AC_REPLACE_FUNCS(strtol)
+ if test $ac_cv_func_strtol = no; then
+ gl_PREREQ_STRTOL
+ fi
+])
+
+# Prerequisites of lib/strtol.c.
+AC_DEFUN([gl_PREREQ_STRTOL], [
+ AC_REQUIRE([AC_HEADER_STDC])
+ AC_CHECK_FUNCS_ONCE(isascii)
+])
diff --git a/m4/strtoul.m4 b/m4/strtoul.m4
new file mode 100644
index 0000000..512cd09
--- /dev/null
+++ b/m4/strtoul.m4
@@ -0,0 +1,18 @@
+# strtoul.m4 serial 2
+dnl Copyright (C) 2002 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRTOUL],
+[
+ AC_REPLACE_FUNCS(strtoul)
+ if test $ac_cv_func_strtoul = no; then
+ gl_PREREQ_STRTOUL
+ fi
+])
+
+# Prerequisites of lib/strtoul.c.
+AC_DEFUN([gl_PREREQ_STRTOUL], [
+ gl_PREREQ_STRTOL
+])
diff --git a/m4/strverscmp.m4 b/m4/strverscmp.m4
new file mode 100644
index 0000000..46e178b
--- /dev/null
+++ b/m4/strverscmp.m4
@@ -0,0 +1,23 @@
+# strverscmp.m4 serial 3
+dnl Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRVERSCMP],
+[
+ AC_LIBSOURCES([strverscmp.c, strverscmp.h])
+
+ dnl Persuade glibc <string.h> to declare strverscmp().
+ AC_REQUIRE([AC_GNU_SOURCE])
+
+ AC_REPLACE_FUNCS(strverscmp)
+ if test $ac_cv_func_strverscmp = no; then
+ gl_PREREQ_STRVERSCMP
+ fi
+])
+
+# Prerequisites of lib/strverscmp.c.
+AC_DEFUN([gl_PREREQ_STRVERSCMP], [
+ :
+])
diff --git a/m4/subpipe.m4 b/m4/subpipe.m4
new file mode 100644
index 0000000..dbf909c
--- /dev/null
+++ b/m4/subpipe.m4
@@ -0,0 +1,29 @@
+# -*- Autoconf -*-
+# Checks required to run `subpipe'.
+#
+# Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# Written by Paul Eggert <eggert@twinsun.com>.
+
+AC_DEFUN([BISON_PREREQ_SUBPIPE],
+[
+ AC_TYPE_PID_T
+ AC_HEADER_SYS_WAIT
+ AC_CHECK_FUNCS(dup2 waitpid)
+ AC_FUNC_FORK
+])
diff --git a/m4/timevar.m4 b/m4/timevar.m4
new file mode 100644
index 0000000..2704a91
--- /dev/null
+++ b/m4/timevar.m4
@@ -0,0 +1,61 @@
+# -*- Autoconf -*-
+# Checks required to run `timevar', a time tracker.
+#
+# Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# serial 2
+
+AC_DEFUN([BISON_PREREQ_TIMEVAR],
+[AC_CHECK_HEADERS([sys/time.h sys/times.h])
+ AC_CHECK_HEADERS([sys/resource.h],,,
+ [$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+])
+AC_CHECK_FUNCS([times])
+
+AC_CHECK_DECLS([getrusage, times, clock, sysconf], [], [],
+[$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+])
+
+AC_CHECK_TYPES([clock_t, struct tms], [], [],
+[$ac_includes_default
+#if HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#if HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+])
+])
diff --git a/m4/uintmax_t_gl.m4 b/m4/uintmax_t_gl.m4
new file mode 100644
index 0000000..bf83ed7
--- /dev/null
+++ b/m4/uintmax_t_gl.m4
@@ -0,0 +1,30 @@
+# uintmax_t.m4 serial 9
+dnl Copyright (C) 1997-2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Paul Eggert.
+
+AC_PREREQ(2.13)
+
+# Define uintmax_t to 'unsigned long' or 'unsigned long long'
+# if it is not already defined in <stdint.h> or <inttypes.h>.
+
+AC_DEFUN([gl_AC_TYPE_UINTMAX_T],
+[
+ AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
+ AC_REQUIRE([gl_AC_HEADER_STDINT_H])
+ if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then
+ AC_REQUIRE([gl_AC_TYPE_UNSIGNED_LONG_LONG])
+ test $ac_cv_type_unsigned_long_long = yes \
+ && ac_type='unsigned long long' \
+ || ac_type='unsigned long'
+ AC_DEFINE_UNQUOTED(uintmax_t, $ac_type,
+ [Define to unsigned long or unsigned long long
+ if <stdint.h> and <inttypes.h> don't define.])
+ else
+ AC_DEFINE(HAVE_UINTMAX_T, 1,
+ [Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>.])
+ fi
+])
diff --git a/m4/ulonglong_gl.m4 b/m4/ulonglong_gl.m4
new file mode 100644
index 0000000..dee10cc
--- /dev/null
+++ b/m4/ulonglong_gl.m4
@@ -0,0 +1,23 @@
+# ulonglong.m4 serial 4
+dnl Copyright (C) 1999-2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Paul Eggert.
+
+# Define HAVE_UNSIGNED_LONG_LONG if 'unsigned long long' works.
+
+AC_DEFUN([gl_AC_TYPE_UNSIGNED_LONG_LONG],
+[
+ AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
+ [AC_TRY_LINK([unsigned long long ull = 1ULL; int i = 63;],
+ [unsigned long long ullmax = (unsigned long long) -1;
+ return ull << i | ull >> i | ullmax / ull | ullmax % ull;],
+ ac_cv_type_unsigned_long_long=yes,
+ ac_cv_type_unsigned_long_long=no)])
+ if test $ac_cv_type_unsigned_long_long = yes; then
+ AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1,
+ [Define if you have the 'unsigned long long' type.])
+ fi
+])
diff --git a/m4/unistd-safer.m4 b/m4/unistd-safer.m4
new file mode 100644
index 0000000..6fbe4c6
--- /dev/null
+++ b/m4/unistd-safer.m4
@@ -0,0 +1,13 @@
+#serial 7
+dnl Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_UNISTD_SAFER],
+[
+ AC_LIBSOURCES([dup-safer.c, fd-safer.c, pipe-safer.c, unistd-safer.h, unistd--.h])
+ AC_LIBOBJ([dup-safer])
+ AC_LIBOBJ([fd-safer])
+ AC_LIBOBJ([pipe-safer])
+])
diff --git a/m4/unistd_h.m4 b/m4/unistd_h.m4
new file mode 100644
index 0000000..9c77f9b
--- /dev/null
+++ b/m4/unistd_h.m4
@@ -0,0 +1,18 @@
+# unistd_h.m4 serial 2
+dnl Copyright (C) 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Written by Simon Josefsson
+
+AC_DEFUN([gl_HEADER_UNISTD],
+[
+ dnl Prerequisites of lib/unistd.h.
+ AC_CHECK_HEADERS([unistd.h], [
+ UNISTD_H=''
+ ], [
+ UNISTD_H='unistd.h'
+ ])
+ AC_SUBST(UNISTD_H)
+])
diff --git a/m4/unlocked-io.m4 b/m4/unlocked-io.m4
new file mode 100644
index 0000000..f58e960
--- /dev/null
+++ b/m4/unlocked-io.m4
@@ -0,0 +1,44 @@
+# unlocked-io.m4 serial 13
+
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+dnl From Jim Meyering.
+dnl
+dnl See if the glibc *_unlocked I/O macros or functions are available.
+dnl Use only those *_unlocked macros or functions that are declared
+dnl (because some of them were declared in Solaris 2.5.1 but were removed
+dnl in Solaris 2.6, whereas we want binaries built on Solaris 2.5.1 to run
+dnl on Solaris 2.6).
+
+AC_DEFUN([gl_FUNC_GLIBC_UNLOCKED_IO],
+[
+ AC_LIBSOURCES([unlocked-io.h])
+
+ AC_DEFINE([USE_UNLOCKED_IO], 1,
+ [Define to 1 if you want getc etc. to use unlocked I/O if available.
+ Unlocked I/O can improve performance in unithreaded apps,
+ but it is not safe for multithreaded apps.])
+
+ dnl Persuade glibc and Solaris <stdio.h> to declare
+ dnl fgets_unlocked(), fputs_unlocked() etc.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ AC_CHECK_DECLS_ONCE([clearerr_unlocked])
+ AC_CHECK_DECLS_ONCE([feof_unlocked])
+ AC_CHECK_DECLS_ONCE([ferror_unlocked])
+ AC_CHECK_DECLS_ONCE([fflush_unlocked])
+ AC_CHECK_DECLS_ONCE([fgets_unlocked])
+ AC_CHECK_DECLS_ONCE([fputc_unlocked])
+ AC_CHECK_DECLS_ONCE([fputs_unlocked])
+ AC_CHECK_DECLS_ONCE([fread_unlocked])
+ AC_CHECK_DECLS_ONCE([fwrite_unlocked])
+ AC_CHECK_DECLS_ONCE([getc_unlocked])
+ AC_CHECK_DECLS_ONCE([getchar_unlocked])
+ AC_CHECK_DECLS_ONCE([putc_unlocked])
+ AC_CHECK_DECLS_ONCE([putchar_unlocked])
+])
diff --git a/m4/warning.m4 b/m4/warning.m4
new file mode 100644
index 0000000..fe39bec
--- /dev/null
+++ b/m4/warning.m4
@@ -0,0 +1,32 @@
+# Finding valid warning flags for the C Compiler. -*-Autoconf-*-
+#
+# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# serial 1
+
+AC_DEFUN([BISON_WARNING],
+[AC_MSG_CHECKING(whether compiler accepts $1)
+AC_SUBST(WARNING_CFLAGS)
+ac_save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS $1"
+AC_TRY_COMPILE(,
+[int x;],
+WARNING_CFLAGS="$WARNING_CFLAGS $1"
+AC_MSG_RESULT(yes),
+AC_MSG_RESULT(no))
+CFLAGS="$ac_save_CFLAGS"])
diff --git a/m4/xalloc.m4 b/m4/xalloc.m4
new file mode 100644
index 0000000..c0847dd
--- /dev/null
+++ b/m4/xalloc.m4
@@ -0,0 +1,25 @@
+# xalloc.m4 serial 12
+dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_XALLOC],
+[
+ AC_LIBSOURCES([xmalloc.c, xalloc.h])
+ AC_LIBOBJ([xmalloc])
+
+ gl_PREREQ_XALLOC
+ gl_PREREQ_XMALLOC
+])
+
+# Prerequisites of lib/xalloc.h.
+AC_DEFUN([gl_PREREQ_XALLOC], [
+ :
+])
+
+# Prerequisites of lib/xmalloc.c.
+AC_DEFUN([gl_PREREQ_XMALLOC], [
+ AC_REQUIRE([AC_C_INLINE])
+ :
+])
diff --git a/m4/xstrndup.m4 b/m4/xstrndup.m4
new file mode 100644
index 0000000..8a30ab1
--- /dev/null
+++ b/m4/xstrndup.m4
@@ -0,0 +1,15 @@
+# xstrndup.m4 serial 2
+dnl Copyright (C) 2003 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_XSTRNDUP],
+[
+ gl_PREREQ_XSTRNDUP
+])
+
+# Prerequisites of lib/xstrndup.c.
+AC_DEFUN([gl_PREREQ_XSTRNDUP], [
+ :
+])
diff --git a/src/LR0.c b/src/LR0.c
new file mode 100644
index 0000000..259b891
--- /dev/null
+++ b/src/LR0.c
@@ -0,0 +1,377 @@
+/* Generate the nondeterministic finite state machine for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2004, 2005 Free
+ Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+
+/* See comments in state.h for the data structures that represent it.
+ The entry point is generate_states. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitset.h>
+#include <quotearg.h>
+
+#include "LR0.h"
+#include "closure.h"
+#include "complain.h"
+#include "getargs.h"
+#include "gram.h"
+#include "gram.h"
+#include "lalr.h"
+#include "reader.h"
+#include "reduce.h"
+#include "state.h"
+#include "symtab.h"
+
+typedef struct state_list
+{
+ struct state_list *next;
+ state *state;
+} state_list;
+
+static state_list *first_state = NULL;
+static state_list *last_state = NULL;
+
+
+/*------------------------------------------------------------------.
+| A state was just discovered from another state. Queue it for |
+| later examination, in order to find its transitions. Return it. |
+`------------------------------------------------------------------*/
+
+static state *
+state_list_append (symbol_number sym, size_t core_size, item_number *core)
+{
+ state_list *node = xmalloc (sizeof *node);
+ state *s = state_new (sym, core_size, core);
+
+ if (trace_flag & trace_automaton)
+ fprintf (stderr, "state_list_append (state = %d, symbol = %d (%s))\n",
+ nstates, sym, symbols[sym]->tag);
+
+ node->next = NULL;
+ node->state = s;
+
+ if (!first_state)
+ first_state = node;
+ if (last_state)
+ last_state->next = node;
+ last_state = node;
+
+ return s;
+}
+
+static int nshifts;
+static symbol_number *shift_symbol;
+
+static rule **redset;
+static state **shiftset;
+
+static item_number **kernel_base;
+static int *kernel_size;
+static item_number *kernel_items;
+
+
+static void
+allocate_itemsets (void)
+{
+ symbol_number i;
+ rule_number r;
+ item_number *rhsp;
+
+ /* Count the number of occurrences of all the symbols in RITEMS.
+ Note that useless productions (hence useless nonterminals) are
+ browsed too, hence we need to allocate room for _all_ the
+ symbols. */
+ size_t count = 0;
+ size_t *symbol_count = xcalloc (nsyms + nuseless_nonterminals,
+ sizeof *symbol_count);
+
+ for (r = 0; r < nrules; ++r)
+ for (rhsp = rules[r].rhs; *rhsp >= 0; ++rhsp)
+ {
+ count++;
+ symbol_count[*rhsp]++;
+ }
+
+ /* See comments before new_itemsets. All the vectors of items
+ live inside KERNEL_ITEMS. The number of active items after
+ some symbol S cannot be more than the number of times that S
+ appears as an item, which is SYMBOL_COUNT[S].
+ We allocate that much space for each symbol. */
+
+ kernel_base = xnmalloc (nsyms, sizeof *kernel_base);
+ kernel_items = xnmalloc (count, sizeof *kernel_items);
+
+ count = 0;
+ for (i = 0; i < nsyms; i++)
+ {
+ kernel_base[i] = kernel_items + count;
+ count += symbol_count[i];
+ }
+
+ free (symbol_count);
+ kernel_size = xnmalloc (nsyms, sizeof *kernel_size);
+}
+
+
+static void
+allocate_storage (void)
+{
+ allocate_itemsets ();
+
+ shiftset = xnmalloc (nsyms, sizeof *shiftset);
+ redset = xnmalloc (nrules, sizeof *redset);
+ state_hash_new ();
+ shift_symbol = xnmalloc (nsyms, sizeof *shift_symbol);
+}
+
+
+static void
+free_storage (void)
+{
+ free (shift_symbol);
+ free (redset);
+ free (shiftset);
+ free (kernel_base);
+ free (kernel_size);
+ free (kernel_items);
+ state_hash_free ();
+}
+
+
+
+
+/*---------------------------------------------------------------.
+| Find which symbols can be shifted in S, and for each one |
+| record which items would be active after that shift. Uses the |
+| contents of itemset. |
+| |
+| shift_symbol is set to a vector of the symbols that can be |
+| shifted. For each symbol in the grammar, kernel_base[symbol] |
+| points to a vector of item numbers activated if that symbol is |
+| shifted, and kernel_size[symbol] is their numbers. |
+`---------------------------------------------------------------*/
+
+static void
+new_itemsets (state *s)
+{
+ size_t i;
+
+ if (trace_flag & trace_automaton)
+ fprintf (stderr, "Entering new_itemsets, state = %d\n", s->number);
+
+ memset (kernel_size, 0, nsyms * sizeof *kernel_size);
+
+ nshifts = 0;
+
+ for (i = 0; i < nritemset; ++i)
+ if (ritem[itemset[i]] >= 0)
+ {
+ symbol_number sym = item_number_as_symbol_number (ritem[itemset[i]]);
+ if (!kernel_size[sym])
+ {
+ shift_symbol[nshifts] = sym;
+ nshifts++;
+ }
+
+ kernel_base[sym][kernel_size[sym]] = itemset[i] + 1;
+ kernel_size[sym]++;
+ }
+}
+
+
+
+/*--------------------------------------------------------------.
+| Find the state we would get to (from the current state) by |
+| shifting SYM. Create a new state if no equivalent one exists |
+| already. Used by append_states. |
+`--------------------------------------------------------------*/
+
+static state *
+get_state (symbol_number sym, size_t core_size, item_number *core)
+{
+ state *s;
+
+ if (trace_flag & trace_automaton)
+ fprintf (stderr, "Entering get_state, symbol = %d (%s)\n",
+ sym, symbols[sym]->tag);
+
+ s = state_hash_lookup (core_size, core);
+ if (!s)
+ s = state_list_append (sym, core_size, core);
+
+ if (trace_flag & trace_automaton)
+ fprintf (stderr, "Exiting get_state => %d\n", s->number);
+
+ return s;
+}
+
+/*---------------------------------------------------------------.
+| Use the information computed by new_itemsets to find the state |
+| numbers reached by each shift transition from S. |
+| |
+| SHIFTSET is set up as a vector of those states. |
+`---------------------------------------------------------------*/
+
+static void
+append_states (state *s)
+{
+ int i;
+
+ if (trace_flag & trace_automaton)
+ fprintf (stderr, "Entering append_states, state = %d\n", s->number);
+
+ /* First sort shift_symbol into increasing order. */
+
+ for (i = 1; i < nshifts; i++)
+ {
+ symbol_number sym = shift_symbol[i];
+ int j;
+ for (j = i; 0 < j && sym < shift_symbol[j - 1]; j--)
+ shift_symbol[j] = shift_symbol[j - 1];
+ shift_symbol[j] = sym;
+ }
+
+ for (i = 0; i < nshifts; i++)
+ {
+ symbol_number sym = shift_symbol[i];
+ shiftset[i] = get_state (sym, kernel_size[sym], kernel_base[sym]);
+ }
+}
+
+
+/*----------------------------------------------------------------.
+| Find which rules can be used for reduction transitions from the |
+| current state and make a reductions structure for the state to |
+| record their rule numbers. |
+`----------------------------------------------------------------*/
+
+static void
+save_reductions (state *s)
+{
+ int count = 0;
+ size_t i;
+
+ /* Find and count the active items that represent ends of rules. */
+ for (i = 0; i < nritemset; ++i)
+ {
+ item_number item = ritem[itemset[i]];
+ if (item_number_is_rule_number (item))
+ {
+ rule_number r = item_number_as_rule_number (item);
+ redset[count++] = &rules[r];
+ if (r == 0)
+ {
+ /* This is "reduce 0", i.e., accept. */
+ assert (!final_state);
+ final_state = s;
+ }
+ }
+ }
+
+ /* Make a reductions structure and copy the data into it. */
+ state_reductions_set (s, count, redset);
+}
+
+
+/*---------------.
+| Build STATES. |
+`---------------*/
+
+static void
+set_states (void)
+{
+ states = xcalloc (nstates, sizeof *states);
+
+ while (first_state)
+ {
+ state_list *this = first_state;
+
+ /* Pessimization, but simplification of the code: make sure all
+ the states have valid transitions and reductions members,
+ even if reduced to 0. It is too soon for errs, which are
+ computed later, but set_conflicts. */
+ state *s = this->state;
+ if (!s->transitions)
+ state_transitions_set (s, 0, 0);
+ if (!s->reductions)
+ state_reductions_set (s, 0, 0);
+
+ states[s->number] = s;
+
+ first_state = this->next;
+ free (this);
+ }
+ first_state = NULL;
+ last_state = NULL;
+}
+
+
+/*-------------------------------------------------------------------.
+| Compute the nondeterministic finite state machine (see state.h for |
+| details) from the grammar. |
+`-------------------------------------------------------------------*/
+
+void
+generate_states (void)
+{
+ item_number initial_core = 0;
+ state_list *list = NULL;
+ allocate_storage ();
+ new_closure (nritems);
+
+ /* Create the initial state. The 0 at the lhs is the index of the
+ item of this initial rule. */
+ state_list_append (0, 1, &initial_core);
+
+ /* States are queued when they are created; process them all. */
+ for (list = first_state; list; list = list->next)
+ {
+ state *s = list->state;
+ if (trace_flag & trace_automaton)
+ fprintf (stderr, "Processing state %d (reached by %s)\n",
+ s->number,
+ symbols[s->accessing_symbol]->tag);
+ /* Set up ruleset and itemset for the transitions out of this
+ state. ruleset gets a 1 bit for each rule that could reduce
+ now. itemset gets a vector of all the items that could be
+ accepted next. */
+ closure (s->items, s->nitems);
+ /* Record the reductions allowed out of this state. */
+ save_reductions (s);
+ /* Find the itemsets of the states that shifts can reach. */
+ new_itemsets (s);
+ /* Find or create the core structures for those states. */
+ append_states (s);
+
+ /* Create the shifts structures for the shifts to those states,
+ now that the state numbers transitioning to are known. */
+ state_transitions_set (s, nshifts, shiftset);
+ }
+
+ /* discard various storage */
+ free_closure ();
+ free_storage ();
+
+ /* Set up STATES. */
+ set_states ();
+}
diff --git a/src/LR0.h b/src/LR0.h
new file mode 100644
index 0000000..6004538
--- /dev/null
+++ b/src/LR0.h
@@ -0,0 +1,28 @@
+/* Generate the nondeterministic finite state machine for bison,
+ Copyright 1984, 1986, 1989, 2000, 2001, 2002 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef LR0_H_
+# define LR0_H_
+
+# include "state.h"
+
+void generate_states (void);
+
+#endif /* !LR0_H_ */
diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..eeb1d5b
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,655 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# src/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+
+srcdir = .
+top_srcdir = ..
+
+pkgdatadir = $(datadir)/bison
+pkglibdir = $(libdir)/bison
+pkgincludedir = $(includedir)/bison
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = /usr/bin/install -c
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
+bin_PROGRAMS = bison$(EXEEXT)
+subdir = src
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in parse-gram.c \
+ scan-gram.c scan-skel.c
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
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+ $(top_srcdir)/m4/ulonglong_gl.m4 \
+ $(top_srcdir)/m4/unistd-safer.m4 $(top_srcdir)/m4/unistd_h.m4 \
+ $(top_srcdir)/m4/unlocked-io.m4 $(top_srcdir)/m4/warning.m4 \
+ $(top_srcdir)/m4/xalloc.m4 $(top_srcdir)/m4/xstrndup.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/build-aux/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+am__installdirs = "$(DESTDIR)$(bindir)" "$(DESTDIR)$(bindir)"
+binPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
+PROGRAMS = $(bin_PROGRAMS)
+am_bison_OBJECTS = LR0.$(OBJEXT) assoc.$(OBJEXT) closure.$(OBJEXT) \
+ complain.$(OBJEXT) conflicts.$(OBJEXT) derives.$(OBJEXT) \
+ files.$(OBJEXT) getargs.$(OBJEXT) gram.$(OBJEXT) \
+ lalr.$(OBJEXT) location.$(OBJEXT) main.$(OBJEXT) \
+ muscle_tab.$(OBJEXT) nullable.$(OBJEXT) output.$(OBJEXT) \
+ parse-gram.$(OBJEXT) print.$(OBJEXT) print_graph.$(OBJEXT) \
+ reader.$(OBJEXT) reduce.$(OBJEXT) relation.$(OBJEXT) \
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+ symlist.$(OBJEXT) symtab.$(OBJEXT) tables.$(OBJEXT) \
+ uniqstr.$(OBJEXT) vcg.$(OBJEXT)
+bison_OBJECTS = $(am_bison_OBJECTS)
+bison_LDADD = $(LDADD)
+am__DEPENDENCIES_1 =
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+binSCRIPT_INSTALL = $(INSTALL_SCRIPT)
+SCRIPTS = $(bin_SCRIPTS)
+DEFAULT_INCLUDES = -I. -I$(srcdir) -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/build-aux/depcomp
+am__depfiles_maybe = depfiles
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+LEXCOMPILE = $(LEX) $(LFLAGS) $(AM_LFLAGS)
+YLWRAP = $(top_srcdir)/build-aux/ylwrap
+YACCCOMPILE = $(YACC) $(YFLAGS) $(AM_YFLAGS)
+SOURCES = $(bison_SOURCES) $(EXTRA_bison_SOURCES)
+DIST_SOURCES = $(bison_SOURCES) $(EXTRA_bison_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run aclocal-1.9
+AMDEP_FALSE = #
+AMDEP_TRUE =
+AMTAR = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run tar
+AUTOCONF = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoconf
+AUTOHEADER = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoheader
+AUTOM4TE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autom4te
+AUTOMAKE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run automake-1.9
+AWK = gawk
+BISON_CXX_WORKS = :
+BISON_CXX_WORKS_FALSE = #
+BISON_CXX_WORKS_TRUE =
+BISON_LOCALEDIR = /usr/share/locale
+CC = gcc
+CCDEPMODE = depmode=gcc3
+CFLAGS = -g -O2
+CPP = gcc -E
+CPPFLAGS =
+CXX = g++
+CXXDEPMODE = depmode=gcc3
+CXXFLAGS = -g -O2
+CYGPATH_W = echo
+DEFS = -DHAVE_CONFIG_H -DPKGDATADIR=\"$(pkgdatadir)\" \
+ -DLOCALEDIR=\"$(datadir)/locale\"
+DEPDIR = .deps
+ECHO_C =
+ECHO_N = -n
+ECHO_T =
+EGREP = grep -E
+EXEEXT =
+GCC = yes
+GETOPT_H =
+GMSGFMT = /usr/bin/msgfmt
+HAVE__BOOL = 1
+INSTALL_DATA = ${INSTALL} -m 644
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_SCRIPT = ${INSTALL}
+INSTALL_STRIP_PROGRAM = ${SHELL} $(install_sh) -c -s
+INTLLIBS =
+INTL_MACOSX_LIBS =
+LDFLAGS =
+LEX = flex
+LEXLIB = -lfl
+LEX_OUTPUT_ROOT = lex.yy
+LIBICONV = -liconv
+LIBINTL =
+LIBOBJS = dirname$U.o exitfail$U.o hard-locale$U.o hash$U.o quote$U.o quotearg$U.o fopen-safer$U.o dup-safer$U.o fd-safer$U.o pipe-safer$U.o xmalloc$U.o
+LIBS =
+LTLIBICONV = -liconv
+LTLIBINTL =
+LTLIBOBJS = dirname$U.lo exitfail$U.lo hard-locale$U.lo hash$U.lo quote$U.lo quotearg$U.lo fopen-safer$U.lo dup-safer$U.lo fd-safer$U.lo pipe-safer$U.lo xmalloc$U.lo
+M4 = /usr/bin/m4
+MAKEINFO = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run makeinfo
+MKINSTALLDIRS = $(top_builddir)/build-aux/mkinstalldirs
+MSGFMT = /usr/bin/msgfmt
+MSGMERGE = /usr/bin/msgmerge
+O0CFLAGS = -g
+O0CXXFLAGS = -g
+OBJEXT = o
+PACKAGE = bison
+PACKAGE_BUGREPORT = bug-bison@gnu.org
+PACKAGE_NAME = GNU Bison
+PACKAGE_STRING = GNU Bison 2.3
+PACKAGE_TARNAME = bison
+PACKAGE_VERSION = 2.3
+PATH_SEPARATOR = :
+POSUB = po
+RANLIB = ranlib
+SET_MAKE =
+SHELL = /bin/sh
+STDBOOL_H =
+STRIP =
+UNISTD_H =
+USE_NLS = yes
+VALGRIND =
+VERSION = 2.3
+WARNING_CFLAGS =
+WARNING_CXXFLAGS =
+WERROR_CFLAGS =
+XGETTEXT = /usr/bin/xgettext
+
+# Use our own Bison to build the parser. Of course, you ought to
+# keep a sane version of Bison nearby...
+YACC = ../tests/bison -y
+YACC_LIBRARY = liby.a
+YACC_SCRIPT = yacc
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+am__untar = ${AMTAR} xf -
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+build_alias =
+build_cpu = x86_64
+build_os = linux-gnu
+build_vendor = unknown
+datadir = ${prefix}/share
+exec_prefix = ${prefix}
+host = x86_64-unknown-linux-gnu
+host_alias =
+host_cpu = x86_64
+host_os = linux-gnu
+host_vendor = unknown
+includedir = ${prefix}/include
+infodir = ${prefix}/info
+install_sh = /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/install-sh
+libdir = ${exec_prefix}/lib
+libexecdir = ${exec_prefix}/libexec
+localstatedir = ${prefix}/var
+mandir = ${prefix}/man
+mkdir_p = mkdir -p --
+oldincludedir = /usr/include
+prefix = /home/phanna/src/bison
+program_transform_name = s,x,x,
+sbindir = ${exec_prefix}/sbin
+sharedstatedir = ${prefix}/com
+sysconfdir = ${prefix}/etc
+target_alias =
+AM_CFLAGS = $(WARNING_CFLAGS) $(WERROR_CFLAGS)
+AM_CPPFLAGS = -I$(top_srcdir)/lib -I../lib
+AM_YFLAGS = "-dv"
+LDADD = ../lib/libbison.a $(LIBINTL)
+bin_SCRIPTS = $(YACC_SCRIPT)
+EXTRA_SCRIPTS = yacc
+bison_SOURCES = \
+ LR0.c LR0.h \
+ assoc.c assoc.h \
+ closure.c closure.h \
+ complain.c complain.h \
+ conflicts.c conflicts.h \
+ derives.c derives.h \
+ files.c files.h \
+ getargs.c getargs.h \
+ gram.c gram.h \
+ lalr.h lalr.c \
+ location.c location.h \
+ main.c \
+ muscle_tab.c muscle_tab.h \
+ nullable.c nullable.h \
+ output.c output.h \
+ parse-gram.h parse-gram.y \
+ print.c print.h \
+ print_graph.c print_graph.h \
+ reader.c reader.h \
+ reduce.c reduce.h \
+ relation.c relation.h \
+ scan-gram-c.c \
+ scan-skel-c.c scan-skel.h \
+ state.c state.h \
+ symlist.c symlist.h \
+ symtab.c symtab.h \
+ system.h \
+ tables.h tables.c \
+ uniqstr.c uniqstr.h \
+ vcg.c vcg.h \
+ vcg_defaults.h
+
+EXTRA_bison_SOURCES = scan-skel.l scan-gram.l
+BUILT_SOURCES = scan-skel.c scan-gram.c parse-gram.c parse-gram.h
+MOSTLYCLEANFILES = yacc
+all: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .l .o .obj .y
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps)
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+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+ && exit 0; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu src/Makefile'; \
+ cd $(top_srcdir) && \
+ $(AUTOMAKE) --gnu src/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
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+ if test -f $$p \
+ ; then \
+ f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
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+ else :; fi; \
+ done
+
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+ @list='$(bin_PROGRAMS)'; for p in $$list; do \
+ f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+ echo " rm -f '$(DESTDIR)$(bindir)/$$f'"; \
+ rm -f "$(DESTDIR)$(bindir)/$$f"; \
+ done
+
+clean-binPROGRAMS:
+ -test -z "$(bin_PROGRAMS)" || rm -f $(bin_PROGRAMS)
+bison$(EXEEXT): $(bison_OBJECTS) $(bison_DEPENDENCIES)
+ @rm -f bison$(EXEEXT)
+ $(LINK) $(bison_LDFLAGS) $(bison_OBJECTS) $(bison_LDADD) $(LIBS)
+install-binSCRIPTS: $(bin_SCRIPTS)
+ @$(NORMAL_INSTALL)
+ test -z "$(bindir)" || $(mkdir_p) "$(DESTDIR)$(bindir)"
+ @list='$(bin_SCRIPTS)'; for p in $$list; do \
+ if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+ if test -f $$d$$p; then \
+ f=`echo "$$p" | sed 's|^.*/||;$(transform)'`; \
+ echo " $(binSCRIPT_INSTALL) '$$d$$p' '$(DESTDIR)$(bindir)/$$f'"; \
+ $(binSCRIPT_INSTALL) "$$d$$p" "$(DESTDIR)$(bindir)/$$f"; \
+ else :; fi; \
+ done
+
+uninstall-binSCRIPTS:
+ @$(NORMAL_UNINSTALL)
+ @list='$(bin_SCRIPTS)'; for p in $$list; do \
+ f=`echo "$$p" | sed 's|^.*/||;$(transform)'`; \
+ echo " rm -f '$(DESTDIR)$(bindir)/$$f'"; \
+ rm -f "$(DESTDIR)$(bindir)/$$f"; \
+ done
+
+mostlyclean-compile:
+ -rm -f *.$(OBJEXT)
+
+distclean-compile:
+ -rm -f *.tab.c
+
+include ./$(DEPDIR)/LR0.Po
+include ./$(DEPDIR)/assoc.Po
+include ./$(DEPDIR)/closure.Po
+include ./$(DEPDIR)/complain.Po
+include ./$(DEPDIR)/conflicts.Po
+include ./$(DEPDIR)/derives.Po
+include ./$(DEPDIR)/files.Po
+include ./$(DEPDIR)/getargs.Po
+include ./$(DEPDIR)/gram.Po
+include ./$(DEPDIR)/lalr.Po
+include ./$(DEPDIR)/location.Po
+include ./$(DEPDIR)/main.Po
+include ./$(DEPDIR)/muscle_tab.Po
+include ./$(DEPDIR)/nullable.Po
+include ./$(DEPDIR)/output.Po
+include ./$(DEPDIR)/parse-gram.Po
+include ./$(DEPDIR)/print.Po
+include ./$(DEPDIR)/print_graph.Po
+include ./$(DEPDIR)/reader.Po
+include ./$(DEPDIR)/reduce.Po
+include ./$(DEPDIR)/relation.Po
+include ./$(DEPDIR)/scan-gram-c.Po
+include ./$(DEPDIR)/scan-gram.Po
+include ./$(DEPDIR)/scan-skel-c.Po
+include ./$(DEPDIR)/scan-skel.Po
+include ./$(DEPDIR)/state.Po
+include ./$(DEPDIR)/symlist.Po
+include ./$(DEPDIR)/symtab.Po
+include ./$(DEPDIR)/tables.Po
+include ./$(DEPDIR)/uniqstr.Po
+include ./$(DEPDIR)/vcg.Po
+
+.c.o:
+ if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ $<; \
+ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+# source='$<' object='$@' libtool=no \
+# DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
+# $(COMPILE) -c $<
+
+.c.obj:
+ if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ `$(CYGPATH_W) '$<'`; \
+ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+# source='$<' object='$@' libtool=no \
+# DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
+# $(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.l.c:
+ $(SHELL) $(YLWRAP) $< $(LEX_OUTPUT_ROOT).c $@ -- $(LEXCOMPILE)
+
+.y.c:
+ $(YACCCOMPILE) $<
+ if test -f y.tab.h; then \
+ to=`echo "$*_H" | sed \
+ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+ -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`; \
+ sed -e "/^#/!b" -e "s/Y_TAB_H/$$to/g" -e "s|y\.tab\.h|$*.h|" \
+ y.tab.h >$*.ht; \
+ rm -f y.tab.h; \
+ if cmp -s $*.ht $*.h; then \
+ rm -f $*.ht ;\
+ else \
+ mv $*.ht $*.h; \
+ fi; \
+ fi
+ if test -f y.output; then \
+ mv y.output $*.output; \
+ fi
+ sed '/^#/ s|y\.tab\.c|$@|' y.tab.c >$@t && mv $@t $@
+ rm -f y.tab.c
+uninstall-info-am:
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ mkid -fID $$unique
+tags: TAGS
+
+TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+ test -n "$$unique" || unique=$$empty_fix; \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ $$tags $$unique; \
+ fi
+ctags: CTAGS
+CTAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ test -z "$(CTAGS_ARGS)$$tags$$unique" \
+ || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+ $$tags $$unique
+
+GTAGS:
+ here=`$(am__cd) $(top_builddir) && pwd` \
+ && cd $(top_srcdir) \
+ && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+ list='$(DISTFILES)'; for file in $$list; do \
+ case $$file in \
+ $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+ $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+ esac; \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+ dir="/$$dir"; \
+ $(mkdir_p) "$(distdir)$$dir"; \
+ else \
+ dir=''; \
+ fi; \
+ if test -d $$d/$$file; then \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) check-am
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+installdirs:
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+ test -z "$$dir" || $(mkdir_p) "$$dir"; \
+ done
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+ $(MAKE) $(AM_MAKEFLAGS) install-am
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+
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+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
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+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+ -test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -rm -f parse-gram.c
+ -rm -f scan-gram.c
+ -rm -f scan-skel.c
+ -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-am
+
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+ clean-generic ctags distclean distclean-compile \
+ distclean-generic distclean-tags distdir dvi dvi-am html \
+ html-am info info-am install install-am install-binPROGRAMS \
+ install-binSCRIPTS install-data install-data-am install-exec \
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+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
+ tags uninstall uninstall-am uninstall-binPROGRAMS \
+ uninstall-binSCRIPTS uninstall-info-am
+
+
+yacc:
+ echo '#! /bin/sh' >$@
+ echo 'exec $(bindir)/bison -y "$$@"' >>$@
+ chmod a+x $@
+
+echo:
+ echo $(bison_SOURCES) $(noinst_HEADERS)
+
+# The following rule is not designed to be portable,
+# and relies on tools that not everyone has.
+
+# Most functions in src/*.c should have static scope.
+# Any that don't must be marked with `extern', but `main'
+# and `usage' are exceptions. They're always extern, but
+# don't need to be marked.
+#
+# The second nm|grep checks for file-scope variables with `extern' scope.
+sc_tight_scope: $(all_programs)
+ @t=exceptions-$$$$; \
+ trap 's=$$?; rm -f $$t; exit $$s' 0 1 2 13 15; \
+ ( printf '^main$$\n^usage$$\n'; \
+ grep -h -A1 '^extern .*[^;]$$' $(SOURCES) \
+ | grep -vE '^(extern |--)' |sed 's/^/^/;s/ .*/$$/' ) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* T //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above functions should have static scope' 1>&2; \
+ exit 1; \
+ fi; \
+ ( printf '^program_name$$\n'; \
+ sed -n 's/^extern .*[* ]\([a-zA-Z_][a-zA-Z_0-9]*\);$$/^\1$$/p' \
+ $$(ls $(SOURCES) | grep '\.h$$') /dev/null) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* [BD] //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above variables should have static scope' 1>&2; \
+ exit 1; \
+ fi
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..c973e9e
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,110 @@
+## Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301 USA
+
+DEFS += -DPKGDATADIR=\"$(pkgdatadir)\" -DLOCALEDIR=\"$(datadir)/locale\"
+
+AM_CFLAGS = $(WARNING_CFLAGS) $(WERROR_CFLAGS)
+AM_CPPFLAGS = -I$(top_srcdir)/lib -I../lib
+AM_YFLAGS = "-dv"
+
+LDADD = ../lib/libbison.a $(LIBINTL)
+
+# Use our own Bison to build the parser. Of course, you ought to
+# keep a sane version of Bison nearby...
+YACC = ../tests/bison -y
+
+bin_PROGRAMS = bison
+bin_SCRIPTS = $(YACC_SCRIPT)
+EXTRA_SCRIPTS = yacc
+
+bison_SOURCES = \
+ LR0.c LR0.h \
+ assoc.c assoc.h \
+ closure.c closure.h \
+ complain.c complain.h \
+ conflicts.c conflicts.h \
+ derives.c derives.h \
+ files.c files.h \
+ getargs.c getargs.h \
+ gram.c gram.h \
+ lalr.h lalr.c \
+ location.c location.h \
+ main.c \
+ muscle_tab.c muscle_tab.h \
+ nullable.c nullable.h \
+ output.c output.h \
+ parse-gram.h parse-gram.y \
+ print.c print.h \
+ print_graph.c print_graph.h \
+ reader.c reader.h \
+ reduce.c reduce.h \
+ relation.c relation.h \
+ scan-gram-c.c \
+ scan-skel-c.c scan-skel.h \
+ state.c state.h \
+ symlist.c symlist.h \
+ symtab.c symtab.h \
+ system.h \
+ tables.h tables.c \
+ uniqstr.c uniqstr.h \
+ vcg.c vcg.h \
+ vcg_defaults.h
+
+EXTRA_bison_SOURCES = scan-skel.l scan-gram.l
+
+BUILT_SOURCES = scan-skel.c scan-gram.c parse-gram.c parse-gram.h
+
+MOSTLYCLEANFILES = yacc
+
+yacc:
+ echo '#! /bin/sh' >$@
+ echo 'exec $(bindir)/bison -y "$$@"' >>$@
+ chmod a+x $@
+
+echo:
+ echo $(bison_SOURCES) $(noinst_HEADERS)
+
+# The following rule is not designed to be portable,
+# and relies on tools that not everyone has.
+
+# Most functions in src/*.c should have static scope.
+# Any that don't must be marked with `extern', but `main'
+# and `usage' are exceptions. They're always extern, but
+# don't need to be marked.
+#
+# The second nm|grep checks for file-scope variables with `extern' scope.
+sc_tight_scope: $(all_programs)
+ @t=exceptions-$$$$; \
+ trap 's=$$?; rm -f $$t; exit $$s' 0 1 2 13 15; \
+ ( printf '^main$$\n^usage$$\n'; \
+ grep -h -A1 '^extern .*[^;]$$' $(SOURCES) \
+ | grep -vE '^(extern |--)' |sed 's/^/^/;s/ .*/$$/' ) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* T //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above functions should have static scope' 1>&2; \
+ exit 1; \
+ fi; \
+ ( printf '^program_name$$\n'; \
+ sed -n 's/^extern .*[* ]\([a-zA-Z_][a-zA-Z_0-9]*\);$$/^\1$$/p' \
+ $$(ls $(SOURCES) | grep '\.h$$') /dev/null) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* [BD] //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above variables should have static scope' 1>&2; \
+ exit 1; \
+ fi
diff --git a/src/Makefile.in b/src/Makefile.in
new file mode 100644
index 0000000..7de9081
--- /dev/null
+++ b/src/Makefile.in
@@ -0,0 +1,655 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = @INSTALL@
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+bin_PROGRAMS = bison$(EXEEXT)
+subdir = src
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in parse-gram.c \
+ scan-gram.c scan-skel.c
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
+ $(top_srcdir)/m4/c-working.m4 $(top_srcdir)/m4/cxx.m4 \
+ $(top_srcdir)/m4/dirname.m4 $(top_srcdir)/m4/dmalloc.m4 \
+ $(top_srcdir)/m4/dos.m4 $(top_srcdir)/m4/error.m4 \
+ $(top_srcdir)/m4/exitfail.m4 $(top_srcdir)/m4/extensions.m4 \
+ $(top_srcdir)/m4/getopt.m4 $(top_srcdir)/m4/gettext_gl.m4 \
+ $(top_srcdir)/m4/gnulib.m4 $(top_srcdir)/m4/hard-locale.m4 \
+ $(top_srcdir)/m4/hash.m4 $(top_srcdir)/m4/iconv.m4 \
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+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
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+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+am__installdirs = "$(DESTDIR)$(bindir)" "$(DESTDIR)$(bindir)"
+binPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
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+am_bison_OBJECTS = LR0.$(OBJEXT) assoc.$(OBJEXT) closure.$(OBJEXT) \
+ complain.$(OBJEXT) conflicts.$(OBJEXT) derives.$(OBJEXT) \
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+ lalr.$(OBJEXT) location.$(OBJEXT) main.$(OBJEXT) \
+ muscle_tab.$(OBJEXT) nullable.$(OBJEXT) output.$(OBJEXT) \
+ parse-gram.$(OBJEXT) print.$(OBJEXT) print_graph.$(OBJEXT) \
+ reader.$(OBJEXT) reduce.$(OBJEXT) relation.$(OBJEXT) \
+ scan-gram-c.$(OBJEXT) scan-skel-c.$(OBJEXT) state.$(OBJEXT) \
+ symlist.$(OBJEXT) symtab.$(OBJEXT) tables.$(OBJEXT) \
+ uniqstr.$(OBJEXT) vcg.$(OBJEXT)
+bison_OBJECTS = $(am_bison_OBJECTS)
+bison_LDADD = $(LDADD)
+am__DEPENDENCIES_1 =
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+SCRIPTS = $(bin_SCRIPTS)
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+depcomp = $(SHELL) $(top_srcdir)/build-aux/depcomp
+am__depfiles_maybe = depfiles
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+LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+LEXCOMPILE = $(LEX) $(LFLAGS) $(AM_LFLAGS)
+YLWRAP = $(top_srcdir)/build-aux/ylwrap
+YACCCOMPILE = $(YACC) $(YFLAGS) $(AM_YFLAGS)
+SOURCES = $(bison_SOURCES) $(EXTRA_bison_SOURCES)
+DIST_SOURCES = $(bison_SOURCES) $(EXTRA_bison_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMDEP_FALSE = @AMDEP_FALSE@
+AMDEP_TRUE = @AMDEP_TRUE@
+AMTAR = @AMTAR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOM4TE = @AUTOM4TE@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BISON_CXX_WORKS = @BISON_CXX_WORKS@
+BISON_CXX_WORKS_FALSE = @BISON_CXX_WORKS_FALSE@
+BISON_CXX_WORKS_TRUE = @BISON_CXX_WORKS_TRUE@
+BISON_LOCALEDIR = @BISON_LOCALEDIR@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CXX = @CXX@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@ -DPKGDATADIR=\"$(pkgdatadir)\" \
+ -DLOCALEDIR=\"$(datadir)/locale\"
+DEPDIR = @DEPDIR@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+GCC = @GCC@
+GETOPT_H = @GETOPT_H@
+GMSGFMT = @GMSGFMT@
+HAVE__BOOL = @HAVE__BOOL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+INTLLIBS = @INTLLIBS@
+INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBICONV = @LIBICONV@
+LIBINTL = @LIBINTL@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LTLIBICONV = @LTLIBICONV@
+LTLIBINTL = @LTLIBINTL@
+LTLIBOBJS = @LTLIBOBJS@
+M4 = @M4@
+MAKEINFO = @MAKEINFO@
+MKINSTALLDIRS = @MKINSTALLDIRS@
+MSGFMT = @MSGFMT@
+MSGMERGE = @MSGMERGE@
+O0CFLAGS = @O0CFLAGS@
+O0CXXFLAGS = @O0CXXFLAGS@
+OBJEXT = @OBJEXT@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+POSUB = @POSUB@
+RANLIB = @RANLIB@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STDBOOL_H = @STDBOOL_H@
+STRIP = @STRIP@
+UNISTD_H = @UNISTD_H@
+USE_NLS = @USE_NLS@
+VALGRIND = @VALGRIND@
+VERSION = @VERSION@
+WARNING_CFLAGS = @WARNING_CFLAGS@
+WARNING_CXXFLAGS = @WARNING_CXXFLAGS@
+WERROR_CFLAGS = @WERROR_CFLAGS@
+XGETTEXT = @XGETTEXT@
+
+# Use our own Bison to build the parser. Of course, you ought to
+# keep a sane version of Bison nearby...
+YACC = ../tests/bison -y
+YACC_LIBRARY = @YACC_LIBRARY@
+YACC_SCRIPT = @YACC_SCRIPT@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_RANLIB = @ac_ct_RANLIB@
+ac_ct_STRIP = @ac_ct_STRIP@
+aclocaldir = @aclocaldir@
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+am__quote = @am__quote@
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+build = @build@
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+build_vendor = @build_vendor@
+datadir = @datadir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+AM_CFLAGS = $(WARNING_CFLAGS) $(WERROR_CFLAGS)
+AM_CPPFLAGS = -I$(top_srcdir)/lib -I../lib
+AM_YFLAGS = "-dv"
+LDADD = ../lib/libbison.a $(LIBINTL)
+bin_SCRIPTS = $(YACC_SCRIPT)
+EXTRA_SCRIPTS = yacc
+bison_SOURCES = \
+ LR0.c LR0.h \
+ assoc.c assoc.h \
+ closure.c closure.h \
+ complain.c complain.h \
+ conflicts.c conflicts.h \
+ derives.c derives.h \
+ files.c files.h \
+ getargs.c getargs.h \
+ gram.c gram.h \
+ lalr.h lalr.c \
+ location.c location.h \
+ main.c \
+ muscle_tab.c muscle_tab.h \
+ nullable.c nullable.h \
+ output.c output.h \
+ parse-gram.h parse-gram.y \
+ print.c print.h \
+ print_graph.c print_graph.h \
+ reader.c reader.h \
+ reduce.c reduce.h \
+ relation.c relation.h \
+ scan-gram-c.c \
+ scan-skel-c.c scan-skel.h \
+ state.c state.h \
+ symlist.c symlist.h \
+ symtab.c symtab.h \
+ system.h \
+ tables.h tables.c \
+ uniqstr.c uniqstr.h \
+ vcg.c vcg.h \
+ vcg_defaults.h
+
+EXTRA_bison_SOURCES = scan-skel.l scan-gram.l
+BUILT_SOURCES = scan-skel.c scan-gram.c parse-gram.c parse-gram.h
+MOSTLYCLEANFILES = yacc
+all: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .l .o .obj .y
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+ && exit 0; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu src/Makefile'; \
+ cd $(top_srcdir) && \
+ $(AUTOMAKE) --gnu src/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+ esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+install-binPROGRAMS: $(bin_PROGRAMS)
+ @$(NORMAL_INSTALL)
+ test -z "$(bindir)" || $(mkdir_p) "$(DESTDIR)$(bindir)"
+ @list='$(bin_PROGRAMS)'; for p in $$list; do \
+ p1=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+ if test -f $$p \
+ ; then \
+ f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
+ echo " $(INSTALL_PROGRAM_ENV) $(binPROGRAMS_INSTALL) '$$p' '$(DESTDIR)$(bindir)/$$f'"; \
+ $(INSTALL_PROGRAM_ENV) $(binPROGRAMS_INSTALL) "$$p" "$(DESTDIR)$(bindir)/$$f" || exit 1; \
+ else :; fi; \
+ done
+
+uninstall-binPROGRAMS:
+ @$(NORMAL_UNINSTALL)
+ @list='$(bin_PROGRAMS)'; for p in $$list; do \
+ f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+ echo " rm -f '$(DESTDIR)$(bindir)/$$f'"; \
+ rm -f "$(DESTDIR)$(bindir)/$$f"; \
+ done
+
+clean-binPROGRAMS:
+ -test -z "$(bin_PROGRAMS)" || rm -f $(bin_PROGRAMS)
+bison$(EXEEXT): $(bison_OBJECTS) $(bison_DEPENDENCIES)
+ @rm -f bison$(EXEEXT)
+ $(LINK) $(bison_LDFLAGS) $(bison_OBJECTS) $(bison_LDADD) $(LIBS)
+install-binSCRIPTS: $(bin_SCRIPTS)
+ @$(NORMAL_INSTALL)
+ test -z "$(bindir)" || $(mkdir_p) "$(DESTDIR)$(bindir)"
+ @list='$(bin_SCRIPTS)'; for p in $$list; do \
+ if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+ if test -f $$d$$p; then \
+ f=`echo "$$p" | sed 's|^.*/||;$(transform)'`; \
+ echo " $(binSCRIPT_INSTALL) '$$d$$p' '$(DESTDIR)$(bindir)/$$f'"; \
+ $(binSCRIPT_INSTALL) "$$d$$p" "$(DESTDIR)$(bindir)/$$f"; \
+ else :; fi; \
+ done
+
+uninstall-binSCRIPTS:
+ @$(NORMAL_UNINSTALL)
+ @list='$(bin_SCRIPTS)'; for p in $$list; do \
+ f=`echo "$$p" | sed 's|^.*/||;$(transform)'`; \
+ echo " rm -f '$(DESTDIR)$(bindir)/$$f'"; \
+ rm -f "$(DESTDIR)$(bindir)/$$f"; \
+ done
+
+mostlyclean-compile:
+ -rm -f *.$(OBJEXT)
+
+distclean-compile:
+ -rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LR0.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/assoc.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/closure.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/complain.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conflicts.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/derives.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/files.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getargs.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gram.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lalr.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/location.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/main.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/muscle_tab.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/nullable.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/output.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parse-gram.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/print.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/print_graph.Po@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/reduce.Po@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/scan-gram-c.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/scan-gram.Po@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vcg.Po@am__quote@
+
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+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
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+@am__fastdepCC_FALSE@ $(COMPILE) -c $<
+
+.c.obj:
+@am__fastdepCC_TRUE@ if $(COMPILE) -MT $@ -MD -MP -MF "$(DEPDIR)/$*.Tpo" -c -o $@ `$(CYGPATH_W) '$<'`; \
+@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/$*.Tpo" "$(DEPDIR)/$*.Po"; else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCC_FALSE@ $(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.l.c:
+ $(SHELL) $(YLWRAP) $< $(LEX_OUTPUT_ROOT).c $@ -- $(LEXCOMPILE)
+
+.y.c:
+ $(YACCCOMPILE) $<
+ if test -f y.tab.h; then \
+ to=`echo "$*_H" | sed \
+ -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+ -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`; \
+ sed -e "/^#/!b" -e "s/Y_TAB_H/$$to/g" -e "s|y\.tab\.h|$*.h|" \
+ y.tab.h >$*.ht; \
+ rm -f y.tab.h; \
+ if cmp -s $*.ht $*.h; then \
+ rm -f $*.ht ;\
+ else \
+ mv $*.ht $*.h; \
+ fi; \
+ fi
+ if test -f y.output; then \
+ mv y.output $*.output; \
+ fi
+ sed '/^#/ s|y\.tab\.c|$@|' y.tab.c >$@t && mv $@t $@
+ rm -f y.tab.c
+uninstall-info-am:
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ mkid -fID $$unique
+tags: TAGS
+
+TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+ test -n "$$unique" || unique=$$empty_fix; \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ $$tags $$unique; \
+ fi
+ctags: CTAGS
+CTAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
+ $(TAGS_FILES) $(LISP)
+ tags=; \
+ here=`pwd`; \
+ list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+ unique=`for i in $$list; do \
+ if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+ done | \
+ $(AWK) ' { files[$$0] = 1; } \
+ END { for (i in files) print i; }'`; \
+ test -z "$(CTAGS_ARGS)$$tags$$unique" \
+ || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+ $$tags $$unique
+
+GTAGS:
+ here=`$(am__cd) $(top_builddir) && pwd` \
+ && cd $(top_srcdir) \
+ && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+ list='$(DISTFILES)'; for file in $$list; do \
+ case $$file in \
+ $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+ $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+ esac; \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+ dir="/$$dir"; \
+ $(mkdir_p) "$(distdir)$$dir"; \
+ else \
+ dir=''; \
+ fi; \
+ if test -d $$d/$$file; then \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) check-am
+all-am: Makefile $(PROGRAMS) $(SCRIPTS)
+installdirs:
+ for dir in "$(DESTDIR)$(bindir)" "$(DESTDIR)$(bindir)"; do \
+ test -z "$$dir" || $(mkdir_p) "$$dir"; \
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+install: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) install-am
+install-exec: install-exec-am
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+uninstall: uninstall-am
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+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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+installcheck: installcheck-am
+install-strip:
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+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+ -test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -rm -f parse-gram.c
+ -rm -f scan-gram.c
+ -rm -f scan-skel.c
+ -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic mostlyclean-am
+
+distclean: distclean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
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+dvi-am:
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+
+info: info-am
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+install-info: install-info-am
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+install-man:
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+maintainer-clean: maintainer-clean-am
+ -rm -rf ./$(DEPDIR)
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+maintainer-clean-am: distclean-am maintainer-clean-generic
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+pdf: pdf-am
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+ clean-generic ctags distclean distclean-compile \
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+ html-am info info-am install install-am install-binPROGRAMS \
+ install-binSCRIPTS install-data install-data-am install-exec \
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+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
+ tags uninstall uninstall-am uninstall-binPROGRAMS \
+ uninstall-binSCRIPTS uninstall-info-am
+
+
+yacc:
+ echo '#! /bin/sh' >$@
+ echo 'exec $(bindir)/bison -y "$$@"' >>$@
+ chmod a+x $@
+
+echo:
+ echo $(bison_SOURCES) $(noinst_HEADERS)
+
+# The following rule is not designed to be portable,
+# and relies on tools that not everyone has.
+
+# Most functions in src/*.c should have static scope.
+# Any that don't must be marked with `extern', but `main'
+# and `usage' are exceptions. They're always extern, but
+# don't need to be marked.
+#
+# The second nm|grep checks for file-scope variables with `extern' scope.
+sc_tight_scope: $(all_programs)
+ @t=exceptions-$$$$; \
+ trap 's=$$?; rm -f $$t; exit $$s' 0 1 2 13 15; \
+ ( printf '^main$$\n^usage$$\n'; \
+ grep -h -A1 '^extern .*[^;]$$' $(SOURCES) \
+ | grep -vE '^(extern |--)' |sed 's/^/^/;s/ .*/$$/' ) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* T //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above functions should have static scope' 1>&2; \
+ exit 1; \
+ fi; \
+ ( printf '^program_name$$\n'; \
+ sed -n 's/^extern .*[* ]\([a-zA-Z_][a-zA-Z_0-9]*\);$$/^\1$$/p' \
+ $$(ls $(SOURCES) | grep '\.h$$') /dev/null) > $$t; \
+ if nm -e *.$(OBJEXT) \
+ | sed -n 's/.* [BD] //p' \
+ | grep -Ev -f $$t; then \
+ echo 'the above variables should have static scope' 1>&2; \
+ exit 1; \
+ fi
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/assoc.c b/src/assoc.c
new file mode 100644
index 0000000..6f9a3b5
--- /dev/null
+++ b/src/assoc.c
@@ -0,0 +1,47 @@
+/* Associativity information.
+ Copyright (C) 2002, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include "assoc.h"
+
+
+const char *
+assoc_to_string (assoc a)
+{
+ switch (a)
+ {
+ default:
+ abort ();
+
+ case undef_assoc:
+ return "undefined associativity";
+
+ case right_assoc:
+ return "%right";
+
+ case left_assoc:
+ return "%left";
+
+ case non_assoc:
+ return "%nonassoc";
+ }
+}
diff --git a/src/assoc.h b/src/assoc.h
new file mode 100644
index 0000000..778a451
--- /dev/null
+++ b/src/assoc.h
@@ -0,0 +1,35 @@
+/* Associativity information.
+ Copyright (C) 2002, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef ASSOC_H_
+# define ASSOC_H_
+
+/* Associativity values for tokens and rules. */
+typedef enum
+{
+ undef_assoc,
+ right_assoc,
+ left_assoc,
+ non_assoc
+} assoc;
+
+char const *assoc_to_string (assoc a);
+
+#endif /* !ASSOC_H_ */
diff --git a/src/closure.c b/src/closure.c
new file mode 100644
index 0000000..001b831
--- /dev/null
+++ b/src/closure.c
@@ -0,0 +1,249 @@
+/* Closures for Bison
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002, 2004, 2005 Free
+ Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitset.h>
+#include <bitsetv-print.h>
+#include <bitsetv.h>
+#include <quotearg.h>
+
+#include "closure.h"
+#include "derives.h"
+#include "getargs.h"
+#include "gram.h"
+#include "reader.h"
+#include "symtab.h"
+
+/* NITEMSET is the size of the array ITEMSET. */
+item_number *itemset;
+size_t nritemset;
+
+static bitset ruleset;
+
+/* internal data. See comments before set_fderives and set_firsts. */
+static bitsetv fderives = NULL;
+static bitsetv firsts = NULL;
+
+/* Retrieve the FDERIVES/FIRSTS sets of the nonterminals numbered Var. */
+#define FDERIVES(Var) fderives[(Var) - ntokens]
+#define FIRSTS(Var) firsts[(Var) - ntokens]
+
+
+/*-----------------.
+| Debugging code. |
+`-----------------*/
+
+static void
+print_closure (char const *title, item_number *array, size_t size)
+{
+ size_t i;
+ fprintf (stderr, "Closure: %s\n", title);
+ for (i = 0; i < size; ++i)
+ {
+ item_number *rp;
+ fprintf (stderr, " %2d: .", array[i]);
+ for (rp = &ritem[array[i]]; *rp >= 0; ++rp)
+ fprintf (stderr, " %s", symbols[*rp]->tag);
+ fprintf (stderr, " (rule %d)\n", -*rp - 1);
+ }
+ fputs ("\n\n", stderr);
+}
+
+
+static void
+print_firsts (void)
+{
+ symbol_number i, j;
+
+ fprintf (stderr, "FIRSTS\n");
+ for (i = ntokens; i < nsyms; i++)
+ {
+ bitset_iterator iter;
+ fprintf (stderr, "\t%s firsts\n", symbols[i]->tag);
+ BITSET_FOR_EACH (iter, FIRSTS (i), j, 0)
+ {
+ fprintf (stderr, "\t\t%s\n",
+ symbols[j + ntokens]->tag);
+ }
+ }
+ fprintf (stderr, "\n\n");
+}
+
+
+static void
+print_fderives (void)
+{
+ int i;
+ rule_number r;
+
+ fprintf (stderr, "FDERIVES\n");
+ for (i = ntokens; i < nsyms; i++)
+ {
+ bitset_iterator iter;
+ fprintf (stderr, "\t%s derives\n", symbols[i]->tag);
+ BITSET_FOR_EACH (iter, FDERIVES (i), r, 0)
+ {
+ fprintf (stderr, "\t\t%3d ", r);
+ rule_rhs_print (&rules[r], stderr);
+ }
+ }
+ fprintf (stderr, "\n\n");
+}
+
+/*------------------------------------------------------------------.
+| Set FIRSTS to be an NVARS array of NVARS bitsets indicating which |
+| items can represent the beginning of the input corresponding to |
+| which other items. |
+| |
+| For example, if some rule expands symbol 5 into the sequence of |
+| symbols 8 3 20, the symbol 8 can be the beginning of the data for |
+| symbol 5, so the bit [8 - ntokens] in first[5 - ntokens] (= FIRST |
+| (5)) is set. |
+`------------------------------------------------------------------*/
+
+static void
+set_firsts (void)
+{
+ symbol_number i, j;
+
+ firsts = bitsetv_create (nvars, nvars, BITSET_FIXED);
+
+ for (i = ntokens; i < nsyms; i++)
+ for (j = 0; derives[i - ntokens][j]; ++j)
+ {
+ item_number sym = derives[i - ntokens][j]->rhs[0];
+ if (ISVAR (sym))
+ bitset_set (FIRSTS (i), sym - ntokens);
+ }
+
+ if (trace_flag & trace_sets)
+ bitsetv_matrix_dump (stderr, "RTC: Firsts Input", firsts);
+ bitsetv_reflexive_transitive_closure (firsts);
+ if (trace_flag & trace_sets)
+ bitsetv_matrix_dump (stderr, "RTC: Firsts Output", firsts);
+
+ if (trace_flag & trace_sets)
+ print_firsts ();
+}
+
+/*-------------------------------------------------------------------.
+| Set FDERIVES to an NVARS by NRULES matrix of bits indicating which |
+| rules can help derive the beginning of the data for each |
+| nonterminal. |
+| |
+| For example, if symbol 5 can be derived as the sequence of symbols |
+| 8 3 20, and one of the rules for deriving symbol 8 is rule 4, then |
+| the [5 - NTOKENS, 4] bit in FDERIVES is set. |
+`-------------------------------------------------------------------*/
+
+static void
+set_fderives (void)
+{
+ symbol_number i, j;
+ rule_number k;
+
+ fderives = bitsetv_create (nvars, nrules, BITSET_FIXED);
+
+ set_firsts ();
+
+ for (i = ntokens; i < nsyms; ++i)
+ for (j = ntokens; j < nsyms; ++j)
+ if (bitset_test (FIRSTS (i), j - ntokens))
+ for (k = 0; derives[j - ntokens][k]; ++k)
+ bitset_set (FDERIVES (i), derives[j - ntokens][k]->number);
+
+ if (trace_flag & trace_sets)
+ print_fderives ();
+
+ bitsetv_free (firsts);
+}
+
+
+
+void
+new_closure (unsigned int n)
+{
+ itemset = xnmalloc (n, sizeof *itemset);
+
+ ruleset = bitset_create (nrules, BITSET_FIXED);
+
+ set_fderives ();
+}
+
+
+
+void
+closure (item_number *core, size_t n)
+{
+ /* Index over CORE. */
+ size_t c;
+
+ /* A bit index over RULESET. */
+ rule_number ruleno;
+
+ bitset_iterator iter;
+
+ if (trace_flag & trace_sets)
+ print_closure ("input", core, n);
+
+ bitset_zero (ruleset);
+
+ for (c = 0; c < n; ++c)
+ if (ISVAR (ritem[core[c]]))
+ bitset_or (ruleset, ruleset, FDERIVES (ritem[core[c]]));
+
+ nritemset = 0;
+ c = 0;
+ BITSET_FOR_EACH (iter, ruleset, ruleno, 0)
+ {
+ item_number itemno = rules[ruleno].rhs - ritem;
+ while (c < n && core[c] < itemno)
+ {
+ itemset[nritemset] = core[c];
+ nritemset++;
+ c++;
+ }
+ itemset[nritemset] = itemno;
+ nritemset++;
+ };
+
+ while (c < n)
+ {
+ itemset[nritemset] = core[c];
+ nritemset++;
+ c++;
+ }
+
+ if (trace_flag & trace_sets)
+ print_closure ("output", itemset, nritemset);
+}
+
+
+void
+free_closure (void)
+{
+ free (itemset);
+ bitset_free (ruleset);
+ bitsetv_free (fderives);
+}
diff --git a/src/closure.h b/src/closure.h
new file mode 100644
index 0000000..a2582e8
--- /dev/null
+++ b/src/closure.h
@@ -0,0 +1,59 @@
+/* Subroutines for bison
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifndef CLOSURE_H_
+# define CLOSURE_H_
+
+# include "gram.h"
+
+/* Allocates the itemset and ruleset vectors, and precomputes useful
+ data so that closure can be called. n is the number of elements to
+ allocate for itemset. */
+
+void new_closure (unsigned int n);
+
+
+/* Given the kernel (aka core) of a state (a vector of item numbers
+ ITEMS, of length N), set up RULESET and ITEMSET to indicate what
+ rules could be run and which items could be accepted when those
+ items are the active ones.
+
+ RULESET contains a bit for each rule. CLOSURE sets the bits for
+ all rules which could potentially describe the next input to be
+ read.
+
+ ITEMSET is a vector of item numbers; NITEMSET is its size
+ (actually, points to just beyond the end of the part of it that is
+ significant). CLOSURE places there the indices of all items which
+ represent units of input that could arrive next. */
+
+void closure (item_number *items, size_t n);
+
+
+/* Frees ITEMSET, RULESET and internal data. */
+
+void free_closure (void);
+
+extern item_number *itemset;
+extern size_t nritemset;
+
+#endif /* !CLOSURE_H_ */
diff --git a/src/complain.c b/src/complain.c
new file mode 100644
index 0000000..927dbb6
--- /dev/null
+++ b/src/complain.c
@@ -0,0 +1,147 @@
+/* Declaration for error-reporting function for Bison.
+
+ Copyright (C) 2000, 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ USA. */
+
+/* Based on error.c and error.h,
+ written by David MacKenzie <djm@gnu.ai.mit.edu>. */
+
+#include <config.h>
+#include "system.h"
+
+#include <stdarg.h>
+
+#include "complain.h"
+#include "files.h"
+
+/* The calling program should define program_name and set it to the
+ name of the executing program. */
+extern char *program_name;
+
+/* This variable is set each time `warn' is called. */
+bool warning_issued;
+
+/* This variable is set each time `complain' is called. */
+bool complaint_issued;
+
+
+/*--------------------------------.
+| Report a warning, and proceed. |
+`--------------------------------*/
+
+void
+warn_at (location loc, const char *message, ...)
+{
+ va_list args;
+
+ location_print (stderr, loc);
+ fputs (": ", stderr);
+ fputs (_("warning: "), stderr);
+
+ va_start (args, message);
+ vfprintf (stderr, message, args);
+ va_end (args);
+
+ warning_issued = true;
+ putc ('\n', stderr);
+}
+
+void
+warn (const char *message, ...)
+{
+ va_list args;
+
+ fprintf (stderr, "%s: %s", current_file ? current_file : program_name, _("warning: "));
+
+ va_start (args, message);
+ vfprintf (stderr, message, args);
+ va_end (args);
+
+ warning_issued = true;
+ putc ('\n', stderr);
+}
+
+/*-----------------------------------------------------------.
+| An error has occurred, but we can proceed, and die later. |
+`-----------------------------------------------------------*/
+
+void
+complain_at (location loc, const char *message, ...)
+{
+ va_list args;
+
+ location_print (stderr, loc);
+ fputs (": ", stderr);
+
+ va_start (args, message);
+ vfprintf (stderr, message, args);
+ va_end (args);
+
+ complaint_issued = true;
+ putc ('\n', stderr);
+}
+
+void
+complain (const char *message, ...)
+{
+ va_list args;
+
+ fprintf (stderr, "%s: ", current_file ? current_file : program_name);
+
+ va_start (args, message);
+ vfprintf (stderr, message, args);
+ va_end (args);
+
+ complaint_issued = true;
+ putc ('\n', stderr);
+}
+
+/*-------------------------------------------------.
+| A severe error has occurred, we cannot proceed. |
+`-------------------------------------------------*/
+
+void
+fatal_at (location loc, const char *message, ...)
+{
+ va_list args;
+
+ location_print (stderr, loc);
+ fputs (": ", stderr);
+ fputs (_("fatal error: "), stderr);
+
+ va_start (args, message);
+ vfprintf (stderr, message, args);
+ va_end (args);
+ putc ('\n', stderr);
+ exit (EXIT_FAILURE);
+}
+
+void
+fatal (const char *message, ...)
+{
+ va_list args;
+
+ fprintf (stderr, "%s: ", current_file ? current_file : program_name);
+
+ fputs (_("fatal error: "), stderr);
+
+ va_start (args, message);
+ vfprintf (stderr, message, args);
+ va_end (args);
+ putc ('\n', stderr);
+ exit (EXIT_FAILURE);
+}
diff --git a/src/complain.h b/src/complain.h
new file mode 100644
index 0000000..9ae334a
--- /dev/null
+++ b/src/complain.h
@@ -0,0 +1,62 @@
+/* Declaration for error-reporting function for Bison.
+ Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ USA. */
+
+#ifndef COMPLAIN_H_
+# define COMPLAIN_H_ 1
+
+# include "location.h"
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+/* Informative messages, but we proceed. */
+
+void warn (char const *format, ...)
+ __attribute__ ((__format__ (__printf__, 1, 2)));
+
+void warn_at (location loc, char const *format, ...)
+ __attribute__ ((__format__ (__printf__, 2, 3)));
+
+/* Something bad happened, but let's continue and die later. */
+
+void complain (char const *format, ...)
+ __attribute__ ((__format__ (__printf__, 1, 2)));
+
+void complain_at (location loc, char const *format, ...)
+ __attribute__ ((__format__ (__printf__, 2, 3)));
+
+/* Something bad happened, and let's die now. */
+
+void fatal (char const *format, ...)
+ __attribute__ ((__noreturn__, __format__ (__printf__, 1, 2)));
+
+void fatal_at (location loc, char const *format, ...)
+ __attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
+
+/* This variable is set each time `warn' is called. */
+extern bool warning_issued;
+
+/* This variable is set each time `complain' is called. */
+extern bool complaint_issued;
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /* !COMPLAIN_H_ */
diff --git a/src/conflicts.c b/src/conflicts.c
new file mode 100644
index 0000000..13121f6
--- /dev/null
+++ b/src/conflicts.c
@@ -0,0 +1,535 @@
+/* Find and resolve or report look-ahead conflicts for bison,
+
+ Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitset.h>
+
+#include "LR0.h"
+#include "complain.h"
+#include "conflicts.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "lalr.h"
+#include "reader.h"
+#include "state.h"
+#include "symtab.h"
+
+/* -1 stands for not specified. */
+int expected_sr_conflicts = -1;
+int expected_rr_conflicts = -1;
+static char *conflicts;
+static struct obstack solved_conflicts_obstack;
+
+static bitset shift_set;
+static bitset look_ahead_set;
+
+
+
+enum conflict_resolution
+ {
+ shift_resolution,
+ reduce_resolution,
+ left_resolution,
+ right_resolution,
+ nonassoc_resolution
+ };
+
+
+/*----------------------------------------------------------------.
+| Explain how an SR conflict between TOKEN and RULE was resolved: |
+| RESOLUTION. |
+`----------------------------------------------------------------*/
+
+static inline void
+log_resolution (rule *r, symbol_number token,
+ enum conflict_resolution resolution)
+{
+ if (report_flag & report_solved_conflicts)
+ {
+ /* The description of the resolution. */
+ switch (resolution)
+ {
+ case shift_resolution:
+ case right_resolution:
+ obstack_fgrow2 (&solved_conflicts_obstack,
+ _("\
+ Conflict between rule %d and token %s resolved as shift"),
+ r->number,
+ symbols[token]->tag);
+ break;
+ case reduce_resolution:
+ case left_resolution:
+ obstack_fgrow2 (&solved_conflicts_obstack,
+ _("\
+ Conflict between rule %d and token %s resolved as reduce"),
+ r->number,
+ symbols[token]->tag);
+ break;
+ case nonassoc_resolution:
+ obstack_fgrow2 (&solved_conflicts_obstack,
+ _("\
+ Conflict between rule %d and token %s resolved as an error"),
+ r->number,
+ symbols[token]->tag);
+ break;
+ }
+
+ /* The reason. */
+ switch (resolution)
+ {
+ case shift_resolution:
+ obstack_fgrow2 (&solved_conflicts_obstack,
+ " (%s < %s)",
+ r->prec->tag,
+ symbols[token]->tag);
+ break;
+
+ case reduce_resolution:
+ obstack_fgrow2 (&solved_conflicts_obstack,
+ " (%s < %s)",
+ symbols[token]->tag,
+ r->prec->tag);
+ break;
+
+ case left_resolution:
+ obstack_fgrow1 (&solved_conflicts_obstack,
+ " (%%left %s)",
+ symbols[token]->tag);
+ break;
+
+ case right_resolution:
+ obstack_fgrow1 (&solved_conflicts_obstack,
+ " (%%right %s)",
+ symbols[token]->tag);
+ break;
+ case nonassoc_resolution:
+ obstack_fgrow1 (&solved_conflicts_obstack,
+ " (%%nonassoc %s)",
+ symbols[token]->tag);
+ break;
+ }
+ obstack_sgrow (&solved_conflicts_obstack, ".\n");
+ }
+}
+
+
+/*------------------------------------------------------------------.
+| Turn off the shift recorded for the specified token in the |
+| specified state. Used when we resolve a shift-reduce conflict in |
+| favor of the reduction. |
+`------------------------------------------------------------------*/
+
+static void
+flush_shift (state *s, int token)
+{
+ transitions *trans = s->transitions;
+ int i;
+
+ bitset_reset (look_ahead_set, token);
+ for (i = 0; i < trans->num; i++)
+ if (!TRANSITION_IS_DISABLED (trans, i)
+ && TRANSITION_SYMBOL (trans, i) == token)
+ TRANSITION_DISABLE (trans, i);
+}
+
+
+/*--------------------------------------------------------------------.
+| Turn off the reduce recorded for the specified token for the |
+| specified look-ahead. Used when we resolve a shift-reduce conflict |
+| in favor of the shift. |
+`--------------------------------------------------------------------*/
+
+static void
+flush_reduce (bitset look_ahead_tokens, int token)
+{
+ bitset_reset (look_ahead_tokens, token);
+}
+
+
+/*------------------------------------------------------------------.
+| Attempt to resolve shift-reduce conflict for one rule by means of |
+| precedence declarations. It has already been checked that the |
+| rule has a precedence. A conflict is resolved by modifying the |
+| shift or reduce tables so that there is no longer a conflict. |
+| |
+| RULENO is the number of the look-ahead bitset to consider. |
+| |
+| ERRORS can be used to store discovered explicit errors. |
+`------------------------------------------------------------------*/
+
+static void
+resolve_sr_conflict (state *s, int ruleno, symbol **errors)
+{
+ symbol_number i;
+ reductions *reds = s->reductions;
+ /* Find the rule to reduce by to get precedence of reduction. */
+ rule *redrule = reds->rules[ruleno];
+ int redprec = redrule->prec->prec;
+ bitset look_ahead_tokens = reds->look_ahead_tokens[ruleno];
+ int nerrs = 0;
+
+ for (i = 0; i < ntokens; i++)
+ if (bitset_test (look_ahead_tokens, i)
+ && bitset_test (look_ahead_set, i)
+ && symbols[i]->prec)
+ {
+ /* Shift-reduce conflict occurs for token number i
+ and it has a precedence.
+ The precedence of shifting is that of token i. */
+ if (symbols[i]->prec < redprec)
+ {
+ log_resolution (redrule, i, reduce_resolution);
+ flush_shift (s, i);
+ }
+ else if (symbols[i]->prec > redprec)
+ {
+ log_resolution (redrule, i, shift_resolution);
+ flush_reduce (look_ahead_tokens, i);
+ }
+ else
+ /* Matching precedence levels.
+ For left association, keep only the reduction.
+ For right association, keep only the shift.
+ For nonassociation, keep neither. */
+
+ switch (symbols[i]->assoc)
+ {
+ default:
+ abort ();
+
+ case right_assoc:
+ log_resolution (redrule, i, right_resolution);
+ flush_reduce (look_ahead_tokens, i);
+ break;
+
+ case left_assoc:
+ log_resolution (redrule, i, left_resolution);
+ flush_shift (s, i);
+ break;
+
+ case non_assoc:
+ log_resolution (redrule, i, nonassoc_resolution);
+ flush_shift (s, i);
+ flush_reduce (look_ahead_tokens, i);
+ /* Record an explicit error for this token. */
+ errors[nerrs++] = symbols[i];
+ break;
+ }
+ }
+
+ if (nerrs)
+ {
+ /* Some tokens have been explicitly made errors. Allocate a
+ permanent errs structure for this state, to record them. */
+ state_errs_set (s, nerrs, errors);
+ }
+
+ if (obstack_object_size (&solved_conflicts_obstack))
+ {
+ obstack_1grow (&solved_conflicts_obstack, '\0');
+ s->solved_conflicts = obstack_finish (&solved_conflicts_obstack);
+ }
+}
+
+
+/*-------------------------------------------------------------------.
+| Solve the S/R conflicts of state S using the |
+| precedence/associativity, and flag it inconsistent if it still has |
+| conflicts. ERRORS can be used as storage to compute the list of |
+| look-ahead tokens on which S raises a syntax error (%nonassoc). |
+`-------------------------------------------------------------------*/
+
+static void
+set_conflicts (state *s, symbol **errors)
+{
+ int i;
+ transitions *trans = s->transitions;
+ reductions *reds = s->reductions;
+
+ if (s->consistent)
+ return;
+
+ bitset_zero (look_ahead_set);
+
+ FOR_EACH_SHIFT (trans, i)
+ bitset_set (look_ahead_set, TRANSITION_SYMBOL (trans, i));
+
+ /* Loop over all rules which require look-ahead in this state. First
+ check for shift-reduce conflict, and try to resolve using
+ precedence. */
+ for (i = 0; i < reds->num; ++i)
+ if (reds->rules[i]->prec && reds->rules[i]->prec->prec
+ && !bitset_disjoint_p (reds->look_ahead_tokens[i], look_ahead_set))
+ resolve_sr_conflict (s, i, errors);
+
+ /* Loop over all rules which require look-ahead in this state. Check
+ for conflicts not resolved above. */
+ for (i = 0; i < reds->num; ++i)
+ {
+ if (!bitset_disjoint_p (reds->look_ahead_tokens[i], look_ahead_set))
+ conflicts[s->number] = 1;
+
+ bitset_or (look_ahead_set, look_ahead_set, reds->look_ahead_tokens[i]);
+ }
+}
+
+
+/*----------------------------------------------------------------.
+| Solve all the S/R conflicts using the precedence/associativity, |
+| and flag as inconsistent the states that still have conflicts. |
+`----------------------------------------------------------------*/
+
+void
+conflicts_solve (void)
+{
+ state_number i;
+ /* List of look-ahead tokens on which we explicitly raise a syntax error. */
+ symbol **errors = xnmalloc (ntokens + 1, sizeof *errors);
+
+ conflicts = xcalloc (nstates, sizeof *conflicts);
+ shift_set = bitset_create (ntokens, BITSET_FIXED);
+ look_ahead_set = bitset_create (ntokens, BITSET_FIXED);
+ obstack_init (&solved_conflicts_obstack);
+
+ for (i = 0; i < nstates; i++)
+ {
+ set_conflicts (states[i], errors);
+
+ /* For uniformity of the code, make sure all the states have a valid
+ `errs' member. */
+ if (!states[i]->errs)
+ states[i]->errs = errs_new (0, 0);
+ }
+
+ free (errors);
+}
+
+
+/*---------------------------------------------.
+| Count the number of shift/reduce conflicts. |
+`---------------------------------------------*/
+
+static int
+count_sr_conflicts (state *s)
+{
+ int i;
+ int src_count = 0;
+ transitions *trans = s->transitions;
+ reductions *reds = s->reductions;
+
+ if (!trans)
+ return 0;
+
+ bitset_zero (look_ahead_set);
+ bitset_zero (shift_set);
+
+ FOR_EACH_SHIFT (trans, i)
+ bitset_set (shift_set, TRANSITION_SYMBOL (trans, i));
+
+ for (i = 0; i < reds->num; ++i)
+ bitset_or (look_ahead_set, look_ahead_set, reds->look_ahead_tokens[i]);
+
+ bitset_and (look_ahead_set, look_ahead_set, shift_set);
+
+ src_count = bitset_count (look_ahead_set);
+
+ return src_count;
+}
+
+
+/*----------------------------------------------------------------.
+| Count the number of reduce/reduce conflicts. If ONE_PER_TOKEN, |
+| count one conflict for each token that has any reduce/reduce |
+| conflicts. Otherwise, count one conflict for each pair of |
+| conflicting reductions. |
++`----------------------------------------------------------------*/
+
+static int
+count_rr_conflicts (state *s, bool one_per_token)
+{
+ int i;
+ reductions *reds = s->reductions;
+ int rrc_count = 0;
+
+ for (i = 0; i < ntokens; i++)
+ {
+ int count = 0;
+ int j;
+ for (j = 0; j < reds->num; ++j)
+ if (bitset_test (reds->look_ahead_tokens[j], i))
+ count++;
+
+ if (count >= 2)
+ rrc_count += one_per_token ? 1 : count-1;
+ }
+
+ return rrc_count;
+}
+
+
+/*--------------------------------------------------------.
+| Report the number of conflicts, using the Yacc format. |
+`--------------------------------------------------------*/
+
+static void
+conflict_report (FILE *out, int src_num, int rrc_num)
+{
+ if (src_num && rrc_num)
+ fprintf (out, _("conflicts: %d shift/reduce, %d reduce/reduce\n"),
+ src_num, rrc_num);
+ else if (src_num)
+ fprintf (out, _("conflicts: %d shift/reduce\n"), src_num);
+ else if (rrc_num)
+ fprintf (out, _("conflicts: %d reduce/reduce\n"), rrc_num);
+}
+
+
+/*-----------------------------------------------------------.
+| Output the detailed description of states with conflicts. |
+`-----------------------------------------------------------*/
+
+void
+conflicts_output (FILE *out)
+{
+ bool printed_sth = false;
+ state_number i;
+ for (i = 0; i < nstates; i++)
+ {
+ state *s = states[i];
+ if (conflicts[i])
+ {
+ fprintf (out, _("State %d "), i);
+ conflict_report (out, count_sr_conflicts (s),
+ count_rr_conflicts (s, true));
+ printed_sth = true;
+ }
+ }
+ if (printed_sth)
+ fputs ("\n\n", out);
+}
+
+/*--------------------------------------------------------.
+| Total the number of S/R and R/R conflicts. Unlike the |
+| code in conflicts_output, however, count EACH pair of |
+| reductions for the same state and look-ahead as one |
+| conflict. |
+`--------------------------------------------------------*/
+
+int
+conflicts_total_count (void)
+{
+ state_number i;
+ int count;
+
+ /* Conflicts by state. */
+ count = 0;
+ for (i = 0; i < nstates; i++)
+ if (conflicts[i])
+ {
+ count += count_sr_conflicts (states[i]);
+ count += count_rr_conflicts (states[i], false);
+ }
+ return count;
+}
+
+
+/*------------------------------------------.
+| Reporting the total number of conflicts. |
+`------------------------------------------*/
+
+void
+conflicts_print (void)
+{
+ /* Is the number of SR conflicts OK? Either EXPECTED_CONFLICTS is
+ not set, and then we want 0 SR, or else it is specified, in which
+ case we want equality. */
+ bool src_ok;
+ bool rrc_ok;
+
+ int src_total = 0;
+ int rrc_total = 0;
+ int src_expected;
+ int rrc_expected;
+
+ /* Conflicts by state. */
+ {
+ state_number i;
+
+ for (i = 0; i < nstates; i++)
+ if (conflicts[i])
+ {
+ src_total += count_sr_conflicts (states[i]);
+ rrc_total += count_rr_conflicts (states[i], true);
+ }
+ }
+
+ if (! glr_parser && rrc_total > 0 && expected_rr_conflicts != -1)
+ {
+ warn (_("%%expect-rr applies only to GLR parsers"));
+ expected_rr_conflicts = -1;
+ }
+
+ src_expected = expected_sr_conflicts == -1 ? 0 : expected_sr_conflicts;
+ rrc_expected = expected_rr_conflicts == -1 ? 0 : expected_rr_conflicts;
+ src_ok = src_total == src_expected;
+ rrc_ok = rrc_total == rrc_expected;
+
+ /* If there are as many RR conflicts and SR conflicts as
+ expected, then there is nothing to report. */
+ if (rrc_ok & src_ok)
+ return;
+
+ /* Report the total number of conflicts on STDERR. */
+ if (src_total | rrc_total)
+ {
+ if (! yacc_flag)
+ fprintf (stderr, "%s: ", current_file);
+ conflict_report (stderr, src_total, rrc_total);
+ }
+
+ if (expected_sr_conflicts != -1 || expected_rr_conflicts != -1)
+ {
+ if (! src_ok)
+ complain (ngettext ("expected %d shift/reduce conflict",
+ "expected %d shift/reduce conflicts",
+ src_expected),
+ src_expected);
+ if (! rrc_ok)
+ complain (ngettext ("expected %d reduce/reduce conflict",
+ "expected %d reduce/reduce conflicts",
+ rrc_expected),
+ rrc_expected);
+ }
+}
+
+
+void
+conflicts_free (void)
+{
+ free (conflicts);
+ bitset_free (shift_set);
+ bitset_free (look_ahead_set);
+ obstack_free (&solved_conflicts_obstack, NULL);
+}
diff --git a/src/conflicts.h b/src/conflicts.h
new file mode 100644
index 0000000..4389e5e
--- /dev/null
+++ b/src/conflicts.h
@@ -0,0 +1,34 @@
+/* Find and resolve or report look-ahead conflicts for bison,
+ Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifndef CONFLICTS_H_
+# define CONFLICTS_H_
+# include "state.h"
+
+void conflicts_solve (void);
+void conflicts_print (void);
+int conflicts_total_count (void);
+void conflicts_output (FILE *out);
+void conflicts_free (void);
+
+/* Were there conflicts? */
+extern int expected_sr_conflicts;
+extern int expected_rr_conflicts;
+#endif /* !CONFLICTS_H_ */
diff --git a/src/derives.c b/src/derives.c
new file mode 100644
index 0000000..2e4ff31
--- /dev/null
+++ b/src/derives.c
@@ -0,0 +1,121 @@
+/* Match rules with nonterminals for bison,
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002, 2003, 2005 Free
+ Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include "getargs.h"
+
+#include "derives.h"
+#include "gram.h"
+#include "reader.h"
+#include "symtab.h"
+
+/* Linked list of rule numbers. */
+typedef struct rule_list
+{
+ struct rule_list *next;
+ rule *value;
+} rule_list;
+
+rule ***derives;
+
+static void
+print_derives (void)
+{
+ int i;
+
+ fputs ("DERIVES\n", stderr);
+
+ for (i = ntokens; i < nsyms; i++)
+ {
+ rule **rp;
+ fprintf (stderr, "\t%s derives\n", symbols[i]->tag);
+ for (rp = derives[i - ntokens]; *rp; ++rp)
+ {
+ fprintf (stderr, "\t\t%3d ", (*rp)->user_number);
+ rule_rhs_print (*rp, stderr);
+ }
+ }
+
+ fputs ("\n\n", stderr);
+}
+
+
+void
+derives_compute (void)
+{
+ symbol_number i;
+ rule_number r;
+ rule **q;
+
+ /* DSET[NTERM - NTOKENS] -- A linked list of the numbers of the rules
+ whose LHS is NTERM. */
+ rule_list **dset = xcalloc (nvars, sizeof *dset);
+
+ /* DELTS[RULE] -- There are NRULES rule number to attach to nterms.
+ Instead of performing NRULES allocations for each, have an array
+ indexed by rule numbers. */
+ rule_list *delts = xnmalloc (nrules, sizeof *delts);
+
+ for (r = nrules - 1; r >= 0; --r)
+ {
+ symbol_number lhs = rules[r].lhs->number;
+ rule_list *p = &delts[r];
+ /* A new LHS is found. */
+ p->next = dset[lhs - ntokens];
+ p->value = &rules[r];
+ dset[lhs - ntokens] = p;
+ }
+
+ /* DSET contains what we need under the form of a linked list. Make
+ it a single array. */
+
+ derives = xnmalloc (nvars, sizeof *derives);
+ q = xnmalloc (nvars + nrules, sizeof *q);
+
+ for (i = ntokens; i < nsyms; i++)
+ {
+ rule_list *p = dset[i - ntokens];
+ derives[i - ntokens] = q;
+ while (p)
+ {
+ *q++ = p->value;
+ p = p->next;
+ }
+ *q++ = NULL;
+ }
+
+ if (trace_flag & trace_sets)
+ print_derives ();
+
+ free (dset);
+ free (delts);
+}
+
+
+void
+derives_free (void)
+{
+ free (derives[0]);
+ free (derives);
+}
diff --git a/src/derives.h b/src/derives.h
new file mode 100644
index 0000000..9a45dc9
--- /dev/null
+++ b/src/derives.h
@@ -0,0 +1,37 @@
+/* Match rules with nonterminals for bison,
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef DERIVES_H_
+# define DERIVES_H_
+
+# include "gram.h"
+
+/* DERIVES[SYMBOL - NTOKENS] points to a vector of the rules that
+ SYMBOL derives, terminated with NULL. */
+extern rule ***derives;
+
+/* Compute DERIVES. */
+
+void derives_compute (void);
+void derives_free (void);
+
+#endif /* !DERIVES_H_ */
diff --git a/src/files.c b/src/files.c
new file mode 100644
index 0000000..f3bb0f9
--- /dev/null
+++ b/src/files.c
@@ -0,0 +1,340 @@
+/* Open and close files for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <error.h>
+#include <get-errno.h>
+#include <quote.h>
+#include <xstrndup.h>
+
+#include "complain.h"
+#include "dirname.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "stdio-safer.h"
+
+struct obstack pre_prologue_obstack;
+struct obstack post_prologue_obstack;
+
+/* Initializing some values below (such SPEC_NAME_PREFIX to `yy') is
+ tempting, but don't do that: for the time being our handling of the
+ %directive vs --option leaves precedence to the options by deciding
+ that if a %directive sets a variable which is really set (i.e., not
+ NULL), then the %directive is ignored. As a result, %name-prefix,
+ for instance, will not be honored. */
+
+char const *spec_outfile = NULL; /* for -o. */
+char const *spec_file_prefix = NULL; /* for -b. */
+char const *spec_name_prefix = NULL; /* for -p. */
+char const *spec_verbose_file = NULL; /* for --verbose. */
+char const *spec_graph_file = NULL; /* for -g. */
+char const *spec_defines_file = NULL; /* for --defines. */
+char const *parser_file_name;
+
+uniqstr grammar_file = NULL;
+uniqstr current_file = NULL;
+
+/* If --output=dir/foo.c was specified,
+ DIR_PREFIX is `dir/' and ALL_BUT_EXT and ALL_BUT_TAB_EXT are `dir/foo'.
+
+ If --output=dir/foo.tab.c was specified, DIR_PREFIX is `dir/',
+ ALL_BUT_EXT is `dir/foo.tab', and ALL_BUT_TAB_EXT is `dir/foo'.
+
+ If --output was not specified but --file-prefix=dir/foo was specified,
+ ALL_BUT_EXT = `foo.tab' and ALL_BUT_TAB_EXT = `foo'.
+
+ If neither --output nor --file was specified but the input grammar
+ is name dir/foo.y, ALL_BUT_EXT and ALL_BUT_TAB_EXT are `foo'.
+
+ If neither --output nor --file was specified, DIR_PREFIX is the
+ empty string (meaning the current directory); otherwise it is
+ `dir/'. */
+
+static char const *all_but_ext;
+static char const *all_but_tab_ext;
+char const *dir_prefix;
+
+/* C source file extension (the parser source). */
+static char const *src_extension = NULL;
+/* Header file extension (if option ``-d'' is specified). */
+static char const *header_extension = NULL;
+
+/*-----------------------------------------------------------------.
+| Return a newly allocated string composed of the concatenation of |
+| STR1, and STR2. |
+`-----------------------------------------------------------------*/
+
+static char *
+concat2 (char const *str1, char const *str2)
+{
+ size_t len = strlen (str1) + strlen (str2);
+ char *res = xmalloc (len + 1);
+ char *cp;
+ cp = stpcpy (res, str1);
+ cp = stpcpy (cp, str2);
+ return res;
+}
+
+/*-----------------------------------------------------------------.
+| Try to open file NAME with mode MODE, and print an error message |
+| if fails. |
+`-----------------------------------------------------------------*/
+
+FILE *
+xfopen (const char *name, const char *mode)
+{
+ FILE *ptr;
+
+ ptr = fopen_safer (name, mode);
+ if (!ptr)
+ error (EXIT_FAILURE, get_errno (), _("cannot open file `%s'"), name);
+
+ return ptr;
+}
+
+/*-------------------------------------------------------------.
+| Try to close file PTR, and print an error message if fails. |
+`-------------------------------------------------------------*/
+
+void
+xfclose (FILE *ptr)
+{
+ if (ptr == NULL)
+ return;
+
+ if (ferror (ptr))
+ error (EXIT_FAILURE, 0, _("I/O error"));
+
+ if (fclose (ptr) != 0)
+ error (EXIT_FAILURE, get_errno (), _("cannot close file"));
+}
+
+
+/*------------------------------------------------------------------.
+| Compute ALL_BUT_EXT, ALL_BUT_TAB_EXT and output files extensions. |
+`------------------------------------------------------------------*/
+
+/* Replace all characters FROM by TO in the string IN.
+ and returns a new allocated string. */
+static char *
+tr (const char *in, char from, char to)
+{
+ char *temp;
+ char *out = xmalloc (strlen (in) + 1);
+
+ for (temp = out; *in; in++, out++)
+ if (*in == from)
+ *out = to;
+ else
+ *out = *in;
+ *out = 0;
+ return (temp);
+}
+
+/* Compute extensions from the grammar file extension. */
+static void
+compute_exts_from_gf (const char *ext)
+{
+ src_extension = tr (ext, 'y', 'c');
+ src_extension = tr (src_extension, 'Y', 'C');
+ header_extension = tr (ext, 'y', 'h');
+ header_extension = tr (header_extension, 'Y', 'H');
+}
+
+/* Compute extensions from the given c source file extension. */
+static void
+compute_exts_from_src (const char *ext)
+{
+ /* We use this function when the user specifies `-o' or `--output',
+ so the extenions must be computed unconditionally from the file name
+ given by this option. */
+ src_extension = xstrdup (ext);
+ header_extension = tr (ext, 'c', 'h');
+ header_extension = tr (header_extension, 'C', 'H');
+}
+
+
+/* Decompose FILE_NAME in four parts: *BASE, *TAB, and *EXT, the fourth
+ part, (the directory) is ranging from FILE_NAME to the char before
+ *BASE, so we don't need an additional parameter.
+
+ *EXT points to the last period in the basename, or NULL if none.
+
+ If there is no *EXT, *TAB is NULL. Otherwise, *TAB points to
+ `.tab' or `_tab' if present right before *EXT, or is NULL. *TAB
+ cannot be equal to *BASE.
+
+ None are allocated, they are simply pointers to parts of FILE_NAME.
+ Examples:
+
+ '/tmp/foo.tab.c' -> *BASE = 'foo.tab.c', *TAB = '.tab.c', *EXT =
+ '.c'
+
+ 'foo.c' -> *BASE = 'foo.c', *TAB = NULL, *EXT = '.c'
+
+ 'tab.c' -> *BASE = 'tab.c', *TAB = NULL, *EXT = '.c'
+
+ '.tab.c' -> *BASE = '.tab.c', *TAB = NULL, *EXT = '.c'
+
+ 'foo.tab' -> *BASE = 'foo.tab', *TAB = NULL, *EXT = '.tab'
+
+ 'foo_tab' -> *BASE = 'foo_tab', *TAB = NULL, *EXT = NULL
+
+ 'foo' -> *BASE = 'foo', *TAB = NULL, *EXT = NULL. */
+
+static void
+file_name_split (const char *file_name,
+ const char **base, const char **tab, const char **ext)
+{
+ *base = base_name (file_name);
+
+ /* Look for the extension, i.e., look for the last dot. */
+ *ext = strrchr (*base, '.');
+ *tab = NULL;
+
+ /* If there is an extension, check if there is a `.tab' part right
+ before. */
+ if (*ext)
+ {
+ size_t baselen = *ext - *base;
+ size_t dottablen = 4;
+ if (dottablen < baselen
+ && (strncmp (*ext - dottablen, ".tab", dottablen) == 0
+ || strncmp (*ext - dottablen, "_tab", dottablen) == 0))
+ *tab = *ext - dottablen;
+ }
+}
+
+
+static void
+compute_file_name_parts (void)
+{
+ const char *base, *tab, *ext;
+
+ /* Compute ALL_BUT_EXT and ALL_BUT_TAB_EXT from SPEC_OUTFILE
+ or GRAMMAR_FILE.
+
+ The precise -o name will be used for FTABLE. For other output
+ files, remove the ".c" or ".tab.c" suffix. */
+ if (spec_outfile)
+ {
+ file_name_split (spec_outfile, &base, &tab, &ext);
+ dir_prefix = xstrndup (spec_outfile, base - spec_outfile);
+
+ /* ALL_BUT_EXT goes up the EXT, excluding it. */
+ all_but_ext =
+ xstrndup (spec_outfile,
+ (strlen (spec_outfile) - (ext ? strlen (ext) : 0)));
+
+ /* ALL_BUT_TAB_EXT goes up to TAB, excluding it. */
+ all_but_tab_ext =
+ xstrndup (spec_outfile,
+ (strlen (spec_outfile)
+ - (tab ? strlen (tab) : (ext ? strlen (ext) : 0))));
+
+ if (ext)
+ compute_exts_from_src (ext);
+ }
+ else
+ {
+ file_name_split (grammar_file, &base, &tab, &ext);
+
+ if (spec_file_prefix)
+ {
+ /* If --file-prefix=foo was specified, ALL_BUT_TAB_EXT = `foo'. */
+ dir_prefix = xstrndup (grammar_file, base - grammar_file);
+ all_but_tab_ext = xstrdup (spec_file_prefix);
+ }
+ else if (yacc_flag)
+ {
+ /* If --yacc, then the output is `y.tab.c'. */
+ dir_prefix = "";
+ all_but_tab_ext = "y";
+ }
+ else
+ {
+ /* Otherwise, ALL_BUT_TAB_EXT is computed from the input
+ grammar: `foo/bar.yy' => `bar'. */
+ dir_prefix = "";
+ all_but_tab_ext =
+ xstrndup (base, (strlen (base) - (ext ? strlen (ext) : 0)));
+ }
+
+ all_but_ext = concat2 (all_but_tab_ext, TAB_EXT);
+
+ /* Compute the extensions from the grammar file name. */
+ if (ext && !yacc_flag)
+ compute_exts_from_gf (ext);
+ }
+}
+
+
+/* Compute the output file names. Warn if we detect conflicting
+ outputs to the same file. */
+
+void
+compute_output_file_names (void)
+{
+ char const *name[4];
+ int i;
+ int j;
+ int names = 0;
+
+ compute_file_name_parts ();
+
+ /* If not yet done. */
+ if (!src_extension)
+ src_extension = ".c";
+ if (!header_extension)
+ header_extension = ".h";
+
+ name[names++] = parser_file_name =
+ spec_outfile ? spec_outfile : concat2 (all_but_ext, src_extension);
+
+ if (defines_flag)
+ {
+ if (! spec_defines_file)
+ spec_defines_file = concat2 (all_but_ext, header_extension);
+ name[names++] = spec_defines_file;
+ }
+
+ if (graph_flag)
+ {
+ if (! spec_graph_file)
+ spec_graph_file = concat2 (all_but_tab_ext, ".vcg");
+ name[names++] = spec_graph_file;
+ }
+
+ if (report_flag)
+ {
+ spec_verbose_file = concat2 (all_but_tab_ext, OUTPUT_EXT);
+ name[names++] = spec_verbose_file;
+ }
+
+ for (j = 0; j < names; j++)
+ for (i = 0; i < j; i++)
+ if (strcmp (name[i], name[j]) == 0)
+ warn (_("conflicting outputs to file %s"), quote (name[i]));
+}
diff --git a/src/files.h b/src/files.h
new file mode 100644
index 0000000..ba9fec2
--- /dev/null
+++ b/src/files.h
@@ -0,0 +1,68 @@
+/* File names and variables for bison,
+ Copyright (C) 1984, 1989, 2000, 2001, 2002 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef FILES_H_
+# define FILES_H_
+
+# include "uniqstr.h"
+
+/* File name specified with -o for the output file, or 0 if no -o. */
+extern char const *spec_outfile;
+
+/* File name for the parser (i.e., the one above, or its default.) */
+extern char const *parser_file_name;
+
+/* Symbol prefix specified with -p, or 0 if no -p. */
+extern const char *spec_name_prefix;
+
+/* File name prefix specified with -b, or 0 if no -b. */
+extern char const *spec_file_prefix;
+
+/* --verbose. */
+extern char const *spec_verbose_file;
+
+/* File name specified for the output VCG graph. */
+extern char const *spec_graph_file;
+
+/* File name specified with --defines. */
+extern char const *spec_defines_file;
+
+/* Directory prefix of output file names. */
+extern char const *dir_prefix;
+
+
+/* If semantic parser, output a .h file that defines YYSTYPE... */
+extern struct obstack pre_prologue_obstack;
+extern struct obstack post_prologue_obstack;
+
+/* The file name as given on the command line.
+ Not named "input_file" because Flex uses this name for an argument,
+ and therefore GCC warns about a name clash. */
+extern uniqstr grammar_file;
+
+/* The current file name. Might change with %include, or with #line. */
+extern uniqstr current_file;
+
+void compute_output_file_names (void);
+
+FILE *xfopen (const char *name, const char *mode);
+void xfclose (FILE *ptr);
+
+#endif /* !FILES_H_ */
diff --git a/src/getargs.c b/src/getargs.c
new file mode 100644
index 0000000..13b0d32
--- /dev/null
+++ b/src/getargs.c
@@ -0,0 +1,460 @@
+/* Parse command line arguments for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <argmatch.h>
+#include <error.h>
+
+/* Hack to get <getopt.h> to declare getopt with a prototype. */
+#if lint && ! defined __GNU_LIBRARY__
+# define __GNU_LIBRARY__
+# define HACK_FOR___GNU_LIBRARY___PROTOTYPE 1
+#endif
+
+#include <getopt.h>
+
+#ifdef HACK_FOR___GNU_LIBRARY___PROTOTYPE
+# undef __GNU_LIBRARY__
+# undef HACK_FOR___GNU_LIBRARY___PROTOTYPE
+#endif
+
+#include "complain.h"
+#include "files.h"
+#include "getargs.h"
+#include "uniqstr.h"
+
+bool debug_flag;
+bool defines_flag;
+bool graph_flag;
+bool locations_flag;
+bool no_lines_flag;
+bool no_parser_flag;
+bool token_table_flag;
+bool yacc_flag; /* for -y */
+
+bool error_verbose = false;
+
+bool nondeterministic_parser = false;
+bool glr_parser = false;
+bool pure_parser = false;
+
+int report_flag = report_none;
+int trace_flag = trace_none;
+
+const char *skeleton = NULL;
+const char *include = NULL;
+
+extern char *program_name;
+
+
+/*---------------------.
+| --trace's handling. |
+`---------------------*/
+
+static const char * const trace_args[] =
+{
+ /* In a series of synonyms, present the most meaningful first, so
+ that argmatch_valid be more readable. */
+ "none - no report",
+ "scan - grammar scanner traces",
+ "parse - grammar parser traces",
+ "automaton - contruction of the automaton",
+ "bitsets - use of bitsets",
+ "grammar - reading, reducing of the grammar",
+ "resource - memory consumption (where available)",
+ "sets - grammar sets: firsts, nullable etc.",
+ "tools - m4 invocation",
+ "m4 - m4 traces",
+ "skeleton - skeleton postprocessing",
+ "time - time consumption",
+ "all - all of the above",
+ 0
+};
+
+static const int trace_types[] =
+{
+ trace_none,
+ trace_scan,
+ trace_parse,
+ trace_automaton,
+ trace_bitsets,
+ trace_grammar,
+ trace_resource,
+ trace_sets,
+ trace_tools,
+ trace_m4,
+ trace_skeleton,
+ trace_time,
+ trace_all
+};
+
+ARGMATCH_VERIFY (trace_args, trace_types);
+
+static void
+trace_argmatch (char *args)
+{
+ if (args)
+ {
+ args = strtok (args, ",");
+ do
+ {
+ int trace = XARGMATCH ("--trace", args,
+ trace_args, trace_types);
+ if (trace == trace_none)
+ trace_flag = trace_none;
+ else
+ trace_flag |= trace;
+ }
+ while ((args = strtok (NULL, ",")));
+ }
+ else
+ trace_flag = trace_all;
+}
+
+
+/*----------------------.
+| --report's handling. |
+`----------------------*/
+
+static const char * const report_args[] =
+{
+ /* In a series of synonyms, present the most meaningful first, so
+ that argmatch_valid be more readable. */
+ "none",
+ "state", "states",
+ "itemset", "itemsets",
+ "look-ahead", "lookahead", "lookaheads",
+ "solved",
+ "all",
+ 0
+};
+
+static const int report_types[] =
+{
+ report_none,
+ report_states, report_states,
+ report_states | report_itemsets, report_states | report_itemsets,
+ report_states | report_look_ahead_tokens,
+ report_states | report_look_ahead_tokens,
+ report_states | report_look_ahead_tokens,
+ report_states | report_solved_conflicts,
+ report_all
+};
+
+ARGMATCH_VERIFY (report_args, report_types);
+
+static void
+report_argmatch (char *args)
+{
+ args = strtok (args, ",");
+ do
+ {
+ int report = XARGMATCH ("--report", args,
+ report_args, report_types);
+ if (report == report_none)
+ report_flag = report_none;
+ else
+ report_flag |= report;
+ }
+ while ((args = strtok (NULL, ",")));
+}
+
+
+/*-------------------------------------------.
+| Display the help message and exit STATUS. |
+`-------------------------------------------*/
+
+static void usage (int) ATTRIBUTE_NORETURN;
+
+static void
+usage (int status)
+{
+ if (status != 0)
+ fprintf (stderr, _("Try `%s --help' for more information.\n"),
+ program_name);
+ else
+ {
+ /* Some efforts were made to ease the translators' task, please
+ continue. */
+ fputs (_("\
+GNU bison generates parsers for LALR(1) grammars.\n"), stdout);
+ putc ('\n', stdout);
+
+ fprintf (stdout, _("\
+Usage: %s [OPTION]... FILE\n"), program_name);
+ putc ('\n', stdout);
+
+ fputs (_("\
+If a long option shows an argument as mandatory, then it is mandatory\n\
+for the equivalent short option also. Similarly for optional arguments.\n"),
+ stdout);
+ putc ('\n', stdout);
+
+ fputs (_("\
+Operation modes:\n\
+ -h, --help display this help and exit\n\
+ -V, --version output version information and exit\n\
+ --print-localedir output directory containing locale-dependent data\n\
+ -y, --yacc emulate POSIX yacc\n"), stdout);
+ putc ('\n', stdout);
+
+ fputs (_("\
+Parser:\n\
+ -S, --skeleton=FILE specify the skeleton to use\n\
+ -t, --debug instrument the parser for debugging\n\
+ --locations enable locations computation\n\
+ -p, --name-prefix=PREFIX prepend PREFIX to the external symbols\n\
+ -l, --no-lines don't generate `#line' directives\n\
+ -n, --no-parser generate the tables only\n\
+ -k, --token-table include a table of token names\n\
+"), stdout);
+ putc ('\n', stdout);
+
+ fputs (_("\
+Output:\n\
+ -d, --defines also produce a header file\n\
+ -r, --report=THINGS also produce details on the automaton\n\
+ -v, --verbose same as `--report=state'\n\
+ -b, --file-prefix=PREFIX specify a PREFIX for output files\n\
+ -o, --output=FILE leave output to FILE\n\
+ -g, --graph also produce a VCG description of the automaton\n\
+"), stdout);
+ putc ('\n', stdout);
+
+ fputs (_("\
+THINGS is a list of comma separated words that can include:\n\
+ `state' describe the states\n\
+ `itemset' complete the core item sets with their closure\n\
+ `look-ahead' explicitly associate look-ahead tokens to items\n\
+ `solved' describe shift/reduce conflicts solving\n\
+ `all' include all the above information\n\
+ `none' disable the report\n\
+"), stdout);
+ putc ('\n', stdout);
+
+ fputs (_("\
+Report bugs to <bug-bison@gnu.org>.\n"), stdout);
+ }
+
+ exit (status);
+}
+
+
+/*------------------------------.
+| Display the version message. |
+`------------------------------*/
+
+static void
+version (void)
+{
+ /* Some efforts were made to ease the translators' task, please
+ continue. */
+ printf (_("bison (GNU Bison) %s"), VERSION);
+ putc ('\n', stdout);
+ fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout);
+ putc ('\n', stdout);
+
+ fprintf (stdout,
+ _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2006);
+
+ fputs (_("\
+This is free software; see the source for copying conditions. There is NO\n\
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
+"),
+ stdout);
+}
+
+
+/*----------------------.
+| Process the options. |
+`----------------------*/
+
+/* Shorts options. */
+static char const short_options[] = "yvegdhr:ltknVo:b:p:S:T::";
+
+/* Values for long options that do not have single-letter equivalents. */
+enum
+{
+ LOCATIONS_OPTION = CHAR_MAX + 1,
+ PRINT_LOCALEDIR_OPTION
+};
+
+static struct option const long_options[] =
+{
+ /* Operation modes. */
+ { "help", no_argument, 0, 'h' },
+ { "version", no_argument, 0, 'V' },
+ { "print-localedir", no_argument, 0, PRINT_LOCALEDIR_OPTION },
+
+ /* Parser. */
+ { "name-prefix", required_argument, 0, 'p' },
+ { "include", required_argument, 0, 'I' },
+
+ /* Output. */
+ { "file-prefix", required_argument, 0, 'b' },
+ { "output", required_argument, 0, 'o' },
+ { "output-file", required_argument, 0, 'o' },
+ { "graph", optional_argument, 0, 'g' },
+ { "report", required_argument, 0, 'r' },
+ { "verbose", no_argument, 0, 'v' },
+
+ /* Hidden. */
+ { "trace", optional_argument, 0, 'T' },
+
+ /* Output. */
+ { "defines", optional_argument, 0, 'd' },
+
+ /* Operation modes. */
+ { "fixed-output-files", no_argument, 0, 'y' },
+ { "yacc", no_argument, 0, 'y' },
+
+ /* Parser. */
+ { "debug", no_argument, 0, 't' },
+ { "locations", no_argument, 0, LOCATIONS_OPTION },
+ { "no-lines", no_argument, 0, 'l' },
+ { "no-parser", no_argument, 0, 'n' },
+ { "raw", no_argument, 0, 0 },
+ { "skeleton", required_argument, 0, 'S' },
+ { "token-table", no_argument, 0, 'k' },
+
+ {0, 0, 0, 0}
+};
+
+/* Under DOS, there is no difference on the case. This can be
+ troublesome when looking for `.tab' etc. */
+#ifdef MSDOS
+# define AS_FILE_NAME(File) (strlwr (File), (File))
+#else
+# define AS_FILE_NAME(File) (File)
+#endif
+
+void
+getargs (int argc, char *argv[])
+{
+ int c;
+
+ while ((c = getopt_long (argc, argv, short_options, long_options, NULL))
+ != -1)
+ switch (c)
+ {
+ case 0:
+ /* Certain long options cause getopt_long to return 0. */
+ break;
+
+ case 'y':
+ yacc_flag = true;
+ break;
+
+ case 'h':
+ usage (EXIT_SUCCESS);
+
+ case 'V':
+ version ();
+ exit (EXIT_SUCCESS);
+
+ case PRINT_LOCALEDIR_OPTION:
+ printf ("%s\n", LOCALEDIR);
+ exit (EXIT_SUCCESS);
+
+ case 'g':
+ /* Here, the -g and --graph=FILE options are differentiated. */
+ graph_flag = true;
+ if (optarg)
+ spec_graph_file = AS_FILE_NAME (optarg);
+ break;
+
+ case 'v':
+ report_flag |= report_states;
+ break;
+
+ case 'S':
+ skeleton = AS_FILE_NAME (optarg);
+ break;
+
+ case 'I':
+ include = AS_FILE_NAME (optarg);
+ break;
+
+ case 'd':
+ /* Here, the -d and --defines options are differentiated. */
+ defines_flag = true;
+ if (optarg)
+ spec_defines_file = AS_FILE_NAME (optarg);
+ break;
+
+ case 'l':
+ no_lines_flag = true;
+ break;
+
+ case LOCATIONS_OPTION:
+ locations_flag = true;
+ break;
+
+ case 'k':
+ token_table_flag = true;
+ break;
+
+ case 'n':
+ no_parser_flag = true;
+ break;
+
+ case 't':
+ debug_flag = true;
+ break;
+
+ case 'o':
+ spec_outfile = AS_FILE_NAME (optarg);
+ break;
+
+ case 'b':
+ spec_file_prefix = AS_FILE_NAME (optarg);
+ break;
+
+ case 'p':
+ spec_name_prefix = optarg;
+ break;
+
+ case 'r':
+ report_argmatch (optarg);
+ break;
+
+ case 'T':
+ trace_argmatch (optarg);
+ break;
+
+ default:
+ usage (EXIT_FAILURE);
+ }
+
+ if (argc - optind != 1)
+ {
+ if (argc - optind < 1)
+ error (0, 0, _("missing operand after `%s'"), argv[argc - 1]);
+ else
+ error (0, 0, _("extra operand `%s'"), argv[optind + 1]);
+ usage (EXIT_FAILURE);
+ }
+
+ current_file = grammar_file = uniqstr_new (argv[optind]);
+}
diff --git a/src/getargs.h b/src/getargs.h
new file mode 100644
index 0000000..816eb95
--- /dev/null
+++ b/src/getargs.h
@@ -0,0 +1,95 @@
+/* Parse command line arguments for bison.
+ Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifndef GETARGS_H_
+# define GETARGS_H_
+
+/* flags set by % directives */
+
+/* for -S */
+extern char const *skeleton;
+
+/* for -I */
+extern char const *include;
+
+extern bool debug_flag; /* for -t */
+extern bool defines_flag; /* for -d */
+extern bool graph_flag; /* for -g */
+extern bool locations_flag;
+extern bool no_lines_flag; /* for -l */
+extern bool no_parser_flag; /* for -n */
+extern bool token_table_flag; /* for -k */
+extern bool yacc_flag; /* for -y */
+
+extern bool error_verbose;
+
+
+/* GLR_PARSER is true if the input file says to use the GLR
+ (Generalized LR) parser, and to output some additional information
+ used by the GLR algorithm. */
+
+extern bool glr_parser;
+
+/* PURE_PARSER is true if should generate a parser that is all pure
+ and reentrant. */
+
+extern bool pure_parser;
+
+/* NONDETERMINISTIC_PARSER is true iff conflicts are accepted. This
+ is used by the GLR parser, and might be used in BackTracking
+ parsers too. */
+
+extern bool nondeterministic_parser;
+
+/* --trace. */
+enum trace
+ {
+ trace_none = 0,
+ trace_scan = 1 << 0,
+ trace_parse = 1 << 1,
+ trace_resource = 1 << 2,
+ trace_sets = 1 << 3,
+ trace_bitsets = 1 << 4,
+ trace_tools = 1 << 5,
+ trace_automaton = 1 << 6,
+ trace_grammar = 1 << 7,
+ trace_time = 1 << 8,
+ trace_skeleton = 1 << 9,
+ trace_m4 = 1 << 10,
+ trace_all = ~0
+ };
+extern int trace_flag;
+
+/* --report. */
+enum report
+ {
+ report_none = 0,
+ report_states = 1 << 0,
+ report_itemsets = 1 << 1,
+ report_look_ahead_tokens= 1 << 2,
+ report_solved_conflicts = 1 << 3,
+ report_all = ~0
+ };
+extern int report_flag;
+
+void getargs (int argc, char *argv[]);
+
+#endif /* !GETARGS_H_ */
diff --git a/src/gram.c b/src/gram.c
new file mode 100644
index 0000000..28666b0
--- /dev/null
+++ b/src/gram.c
@@ -0,0 +1,335 @@
+/* Allocate input grammar variables for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 2001, 2002, 2003, 2005, 2006 Free
+ Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <quotearg.h>
+
+#include "gram.h"
+#include "reader.h"
+#include "reduce.h"
+#include "symtab.h"
+
+/* Comments for these variables are in gram.h. */
+
+item_number *ritem = NULL;
+unsigned int nritems = 0;
+
+rule *rules = NULL;
+rule_number nrules = 0;
+
+symbol **symbols = NULL;
+int nsyms = 0;
+int ntokens = 1;
+int nvars = 0;
+
+symbol_number *token_translations = NULL;
+
+int max_user_token_number = 256;
+
+/*--------------------------------------------------------------.
+| Return true IFF the rule has a `number' smaller than NRULES. |
+`--------------------------------------------------------------*/
+
+bool
+rule_useful_p (rule *r)
+{
+ return r->number < nrules;
+}
+
+
+/*-------------------------------------------------------------.
+| Return true IFF the rule has a `number' higher than NRULES. |
+`-------------------------------------------------------------*/
+
+bool
+rule_useless_p (rule *r)
+{
+ return !rule_useful_p (r);
+}
+
+
+/*--------------------------------------------------------------------.
+| Return true IFF the rule is not flagged as useful *and* is useful. |
+| In other words, it was discarded because of conflicts. |
+`--------------------------------------------------------------------*/
+
+bool
+rule_never_reduced_p (rule *r)
+{
+ return !r->useful && rule_useful_p (r);
+}
+
+
+/*----------------------------------------------------------------.
+| Print this RULE's number and lhs on OUT. If a PREVIOUS_LHS was |
+| already displayed (by a previous call for another rule), avoid |
+| useless repetitions. |
+`----------------------------------------------------------------*/
+
+void
+rule_lhs_print (rule *r, symbol *previous_lhs, FILE *out)
+{
+ fprintf (out, " %3d ", r->number);
+ if (previous_lhs != r->lhs)
+ {
+ fprintf (out, "%s:", r->lhs->tag);
+ }
+ else
+ {
+ int n;
+ for (n = strlen (previous_lhs->tag); n > 0; --n)
+ fputc (' ', out);
+ fputc ('|', out);
+ }
+}
+
+
+/*--------------------------------------.
+| Return the number of symbols in RHS. |
+`--------------------------------------*/
+
+int
+rule_rhs_length (rule *r)
+{
+ int res = 0;
+ item_number *rhsp;
+ for (rhsp = r->rhs; *rhsp >= 0; ++rhsp)
+ ++res;
+ return res;
+}
+
+
+/*-------------------------------.
+| Print this rule's RHS on OUT. |
+`-------------------------------*/
+
+void
+rule_rhs_print (rule *r, FILE *out)
+{
+ if (*r->rhs >= 0)
+ {
+ item_number *rp;
+ for (rp = r->rhs; *rp >= 0; rp++)
+ fprintf (out, " %s", symbols[*rp]->tag);
+ fputc ('\n', out);
+ }
+ else
+ {
+ fprintf (out, " /* %s */\n", _("empty"));
+ }
+}
+
+
+/*-------------------------.
+| Print this rule on OUT. |
+`-------------------------*/
+
+void
+rule_print (rule *r, FILE *out)
+{
+ fprintf (out, "%s:", r->lhs->tag);
+ rule_rhs_print (r, out);
+}
+
+
+/*------------------------.
+| Dump RITEM for traces. |
+`------------------------*/
+
+void
+ritem_print (FILE *out)
+{
+ unsigned int i;
+ fputs ("RITEM\n", out);
+ for (i = 0; i < nritems; ++i)
+ if (ritem[i] >= 0)
+ fprintf (out, " %s", symbols[ritem[i]]->tag);
+ else
+ fprintf (out, " (rule %d)\n", item_number_as_rule_number (ritem[i]));
+ fputs ("\n\n", out);
+}
+
+
+/*------------------------------------------.
+| Return the size of the longest rule RHS. |
+`------------------------------------------*/
+
+size_t
+ritem_longest_rhs (void)
+{
+ int max = 0;
+ rule_number r;
+
+ for (r = 0; r < nrules; ++r)
+ {
+ int length = rule_rhs_length (&rules[r]);
+ if (length > max)
+ max = length;
+ }
+
+ return max;
+}
+
+
+/*-----------------------------------------------------------------.
+| Print the grammar's rules that match FILTER on OUT under TITLE. |
+`-----------------------------------------------------------------*/
+
+void
+grammar_rules_partial_print (FILE *out, const char *title,
+ rule_filter filter)
+{
+ rule_number r;
+ bool first = true;
+ symbol *previous_lhs = NULL;
+
+ /* rule # : LHS -> RHS */
+ for (r = 0; r < nrules + nuseless_productions; r++)
+ {
+ if (filter && !filter (&rules[r]))
+ continue;
+ if (first)
+ fprintf (out, "%s\n\n", title);
+ else if (previous_lhs && previous_lhs != rules[r].lhs)
+ fputc ('\n', out);
+ first = false;
+ rule_lhs_print (&rules[r], previous_lhs, out);
+ rule_rhs_print (&rules[r], out);
+ previous_lhs = rules[r].lhs;
+ }
+ if (!first)
+ fputs ("\n\n", out);
+}
+
+
+/*------------------------------------------.
+| Print the grammar's useful rules on OUT. |
+`------------------------------------------*/
+
+void
+grammar_rules_print (FILE *out)
+{
+ grammar_rules_partial_print (out, _("Grammar"), rule_useful_p);
+}
+
+
+/*-------------------.
+| Dump the grammar. |
+`-------------------*/
+
+void
+grammar_dump (FILE *out, const char *title)
+{
+ fprintf (out, "%s\n\n", title);
+ fprintf (out,
+ "ntokens = %d, nvars = %d, nsyms = %d, nrules = %d, nritems = %d\n\n",
+ ntokens, nvars, nsyms, nrules, nritems);
+
+
+ fprintf (out, "Variables\n---------\n\n");
+ {
+ symbol_number i;
+ fprintf (out, "Value Sprec Sassoc Tag\n");
+
+ for (i = ntokens; i < nsyms; i++)
+ fprintf (out, "%5d %5d %5d %s\n",
+ i,
+ symbols[i]->prec, symbols[i]->assoc,
+ symbols[i]->tag);
+ fprintf (out, "\n\n");
+ }
+
+ fprintf (out, "Rules\n-----\n\n");
+ {
+ rule_number i;
+ fprintf (out, "Num (Prec, Assoc, Useful, Ritem Range) Lhs -> Rhs (Ritem range) [Num]\n");
+ for (i = 0; i < nrules + nuseless_productions; i++)
+ {
+ rule *rule_i = &rules[i];
+ item_number *rp = NULL;
+ unsigned int rhs_itemno = rule_i->rhs - ritem;
+ unsigned int rhs_count = 0;
+ /* Find the last RHS index in ritems. */
+ for (rp = rule_i->rhs; *rp >= 0; ++rp)
+ ++rhs_count;
+ fprintf (out, "%3d (%2d, %2d, %2d, %2u-%2u) %2d ->",
+ i,
+ rule_i->prec ? rule_i->prec->prec : 0,
+ rule_i->prec ? rule_i->prec->assoc : 0,
+ rule_i->useful,
+ rhs_itemno,
+ rhs_itemno + rhs_count - 1,
+ rule_i->lhs->number);
+ /* Dumped the RHS. */
+ for (rp = rule_i->rhs; *rp >= 0; rp++)
+ fprintf (out, " %3d", *rp);
+ fprintf (out, " [%d]\n", item_number_as_rule_number (*rp));
+ }
+ }
+ fprintf (out, "\n\n");
+
+ fprintf (out, "Rules interpreted\n-----------------\n\n");
+ {
+ rule_number r;
+ for (r = 0; r < nrules + nuseless_productions; r++)
+ {
+ fprintf (out, "%-5d ", r);
+ rule_print (&rules[r], out);
+ }
+ }
+ fprintf (out, "\n\n");
+}
+
+
+/*------------------------------------------------------------------.
+| Report on STDERR the rules that are not flagged USEFUL, using the |
+| MESSAGE (which can be `useless rule' when invoked after grammar |
+| reduction, or `never reduced' after conflicts were taken into |
+| account). |
+`------------------------------------------------------------------*/
+
+void
+grammar_rules_never_reduced_report (const char *message)
+{
+ rule_number r;
+ for (r = 0; r < nrules ; ++r)
+ if (!rules[r].useful)
+ {
+ location_print (stderr, rules[r].location);
+ fprintf (stderr, ": %s: %s: ", _("warning"), message);
+ rule_print (&rules[r], stderr);
+ }
+}
+
+void
+grammar_free (void)
+{
+ if (ritem)
+ free (ritem - 1);
+ free (rules);
+ free (token_translations);
+ /* Free the symbol table data structure. */
+ symbols_free ();
+ free_merger_functions ();
+}
diff --git a/src/gram.h b/src/gram.h
new file mode 100644
index 0000000..b8f316a
--- /dev/null
+++ b/src/gram.h
@@ -0,0 +1,271 @@
+/* Data definitions for internal representation of Bison's input.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef GRAM_H_
+# define GRAM_H_
+
+/* Representation of the grammar rules:
+
+ NTOKENS is the number of tokens, and NVARS is the number of
+ variables (nonterminals). NSYMS is the total number, ntokens +
+ nvars.
+
+ Each symbol (either token or variable) receives a symbol number.
+ Numbers 0 to NTOKENS - 1 are for tokens, and NTOKENS to NSYMS - 1
+ are for variables. Symbol number zero is the end-of-input token.
+ This token is counted in ntokens. The true number of token values
+ assigned is NTOKENS reduced by one for each alias declaration.
+
+ The rules receive rule numbers 1 to NRULES in the order they are
+ written. More precisely Bison augments the grammar with the
+ initial rule, `$accept: START-SYMBOL $end', which is numbered 1,
+ all the user rules are 2, 3 etc. Each time a rule number is
+ presented to the user, we subtract 1, so *displayed* rule numbers
+ are 0, 1, 2...
+
+ Internally, we cannot use the number 0 for a rule because for
+ instance RITEM stores both symbol (the RHS) and rule numbers: the
+ symbols are shorts >= 0, and rule number are stored negative.
+ Therefore 0 cannot be used, since it would be both the rule number
+ 0, and the token $end).
+
+ Actions are accessed via the rule number.
+
+ The rules themselves are described by several arrays: amongst which
+ RITEM, and RULES.
+
+ RULES is an array of rules, whose members are:
+
+ RULES[R].lhs -- the symbol of the left hand side of rule R.
+
+ RULES[R].rhs -- the index in RITEM of the beginning of the portion
+ for rule R.
+
+ RULES[R].prec -- the symbol providing the precedence level of R.
+
+ RULES[R].precsym -- the symbol attached (via %prec) to give its
+ precedence to R. Of course, if set, it is equal to `prec', but we
+ need to distinguish one from the other when reducing: a symbol used
+ in a %prec is not useless.
+
+ RULES[R].assoc -- the associativity of R.
+
+ RULES[R].dprec -- the dynamic precedence level of R (for GLR
+ parsing).
+
+ RULES[R].merger -- index of merging function for R (for GLR
+ parsing).
+
+ RULES[R].line -- the line where R was defined.
+
+ RULES[R].useful -- true iff the rule is used (i.e., false if thrown
+ away by reduce).
+
+ The right hand side is stored as symbol numbers in a portion of
+ RITEM.
+
+ The length of the portion is one greater than the number of symbols
+ in the rule's right hand side. The last element in the portion
+ contains minus R, which identifies it as the end of a portion and
+ says which rule it is for.
+
+ The portions of RITEM come in order of increasing rule number.
+ NRITEMS is the total length of RITEM. Each element of RITEM is
+ called an "item" and its index in RITEM is an item number.
+
+ Item numbers are used in the finite state machine to represent
+ places that parsing can get to.
+
+ SYMBOLS[I]->prec records the precedence level of each symbol.
+
+ Precedence levels are assigned in increasing order starting with 1
+ so that numerically higher precedence values mean tighter binding
+ as they ought to. Zero as a symbol or rule's precedence means none
+ is assigned.
+
+ Associativities are recorded similarly in SYMBOLS[I]->assoc. */
+
+# include "location.h"
+# include "symtab.h"
+
+# define ISTOKEN(i) ((i) < ntokens)
+# define ISVAR(i) ((i) >= ntokens)
+
+extern int nsyms;
+extern int ntokens;
+extern int nvars;
+
+typedef int item_number;
+extern item_number *ritem;
+extern unsigned int nritems;
+
+/* There is weird relationship between OT1H item_number and OTOH
+ symbol_number and rule_number: we store the latter in
+ item_number. symbol_number values are stored as-is, while
+ the negation of (rule_number + 1) is stored.
+
+ Therefore, a symbol_number must be a valid item_number, and we
+ sometimes have to perform the converse transformation. */
+
+static inline item_number
+symbol_number_as_item_number (symbol_number sym)
+{
+ return sym;
+}
+
+static inline symbol_number
+item_number_as_symbol_number (item_number i)
+{
+ return i;
+}
+
+static inline bool
+item_number_is_symbol_number (item_number i)
+{
+ return i >= 0;
+}
+
+/* Rule numbers. */
+typedef int rule_number;
+extern rule_number nrules;
+
+static inline item_number
+rule_number_as_item_number (rule_number r)
+{
+ return -1 - r;
+}
+
+static inline rule_number
+item_number_as_rule_number (item_number i)
+{
+ return -1 - i;
+}
+
+static inline bool
+item_number_is_rule_number (item_number i)
+{
+ return i < 0;
+}
+
+/*--------.
+| Rules. |
+`--------*/
+
+typedef struct
+{
+ /* The number of the rule in the source. It is usually the index in
+ RULES too, except if there are useless rules. */
+ rule_number user_number;
+
+ /* The index in RULES. Usually the rule number in the source,
+ except if some rules are useless. */
+ rule_number number;
+
+ symbol *lhs;
+ item_number *rhs;
+
+ /* This symbol provides both the associativity, and the precedence. */
+ symbol *prec;
+
+ int dprec;
+ int merger;
+
+ /* This symbol was attached to the rule via %prec. */
+ symbol *precsym;
+
+ location location;
+ bool useful;
+
+ const char *action;
+ location action_location;
+} rule;
+
+extern rule *rules;
+
+/* A function that selects a rule. */
+typedef bool (*rule_filter) (rule *);
+
+/* Return true IFF the rule has a `number' smaller than NRULES. */
+bool rule_useful_p (rule *r);
+
+/* Return true IFF the rule has a `number' higher than NRULES. */
+bool rule_useless_p (rule *r);
+
+/* Return true IFF the rule is not flagged as useful *and* is useful.
+ In other words, it was discarded because of conflicts. */
+bool rule_never_reduced_p (rule *r);
+
+/* Print this rule's number and lhs on OUT. If a PREVIOUS_LHS was
+ already displayed (by a previous call for another rule), avoid
+ useless repetitions. */
+void rule_lhs_print (rule *r, symbol *previous_lhs, FILE *out);
+
+/* Return the length of the RHS. */
+int rule_rhs_length (rule *r);
+
+/* Print this rule's RHS on OUT. */
+void rule_rhs_print (rule *r, FILE *out);
+
+/* Print this rule on OUT. */
+void rule_print (rule *r, FILE *out);
+
+
+
+
+/* Table of the symbols, indexed by the symbol number. */
+extern symbol **symbols;
+
+/* TOKEN_TRANSLATION -- a table indexed by a token number as returned
+ by the user's yylex routine, it yields the internal token number
+ used by the parser and throughout bison. */
+extern symbol_number *token_translations;
+extern int max_user_token_number;
+
+
+
+/* Dump RITEM for traces. */
+void ritem_print (FILE *out);
+
+/* Return the size of the longest rule RHS. */
+size_t ritem_longest_rhs (void);
+
+/* Print the grammar's rules numbers from BEGIN (inclusive) to END
+ (exclusive) on OUT under TITLE. */
+void grammar_rules_partial_print (FILE *out, const char *title,
+ rule_filter filter);
+
+/* Print the grammar's rules on OUT. */
+void grammar_rules_print (FILE *out);
+
+/* Dump the grammar. */
+void grammar_dump (FILE *out, const char *title);
+
+/* Report on STDERR the rules that are not flagged USEFUL, using the
+ MESSAGE (which can be `useless rule' when invoked after grammar
+ reduction, or `never reduced' after conflicts were taken into
+ account). */
+void grammar_rules_never_reduced_report (const char *message);
+
+/* Free the packed grammar. */
+void grammar_free (void);
+
+#endif /* !GRAM_H_ */
diff --git a/src/lalr.c b/src/lalr.c
new file mode 100644
index 0000000..65c55ab
--- /dev/null
+++ b/src/lalr.c
@@ -0,0 +1,463 @@
+/* Compute look-ahead criteria for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005,
+ 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+
+/* Compute how to make the finite state machine deterministic; find
+ which rules need look-ahead in each state, and which look-ahead
+ tokens they accept. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitset.h>
+#include <bitsetv.h>
+#include <quotearg.h>
+
+#include "LR0.h"
+#include "complain.h"
+#include "derives.h"
+#include "getargs.h"
+#include "gram.h"
+#include "lalr.h"
+#include "nullable.h"
+#include "reader.h"
+#include "relation.h"
+#include "symtab.h"
+
+goto_number *goto_map;
+static goto_number ngotos;
+state_number *from_state;
+state_number *to_state;
+
+/* Linked list of goto numbers. */
+typedef struct goto_list
+{
+ struct goto_list *next;
+ goto_number value;
+} goto_list;
+
+
+/* LA is a LR by NTOKENS matrix of bits. LA[l, i] is 1 if the rule
+ LArule[l] is applicable in the appropriate state when the next
+ token is symbol i. If LA[l, i] and LA[l, j] are both 1 for i != j,
+ it is a conflict. */
+
+static bitsetv LA = NULL;
+size_t nLA;
+
+
+/* And for the famous F variable, which name is so descriptive that a
+ comment is hardly needed. <grin>. */
+static bitsetv F = NULL;
+
+static goto_number **includes;
+static goto_list **lookback;
+
+
+
+
+static void
+set_goto_map (void)
+{
+ state_number s;
+ goto_number *temp_map;
+
+ goto_map = xcalloc (nvars + 1, sizeof *goto_map);
+ temp_map = xnmalloc (nvars + 1, sizeof *temp_map);
+
+ ngotos = 0;
+ for (s = 0; s < nstates; ++s)
+ {
+ transitions *sp = states[s]->transitions;
+ int i;
+ for (i = sp->num - 1; i >= 0 && TRANSITION_IS_GOTO (sp, i); --i)
+ {
+ ngotos++;
+
+ /* Abort if (ngotos + 1) would overflow. */
+ assert (ngotos != GOTO_NUMBER_MAXIMUM);
+
+ goto_map[TRANSITION_SYMBOL (sp, i) - ntokens]++;
+ }
+ }
+
+ {
+ goto_number k = 0;
+ int i;
+ for (i = ntokens; i < nsyms; i++)
+ {
+ temp_map[i - ntokens] = k;
+ k += goto_map[i - ntokens];
+ }
+
+ for (i = ntokens; i < nsyms; i++)
+ goto_map[i - ntokens] = temp_map[i - ntokens];
+
+ goto_map[nsyms - ntokens] = ngotos;
+ temp_map[nsyms - ntokens] = ngotos;
+ }
+
+ from_state = xcalloc (ngotos, sizeof *from_state);
+ to_state = xcalloc (ngotos, sizeof *to_state);
+
+ for (s = 0; s < nstates; ++s)
+ {
+ transitions *sp = states[s]->transitions;
+ int i;
+ for (i = sp->num - 1; i >= 0 && TRANSITION_IS_GOTO (sp, i); --i)
+ {
+ goto_number k = temp_map[TRANSITION_SYMBOL (sp, i) - ntokens]++;
+ from_state[k] = s;
+ to_state[k] = sp->states[i]->number;
+ }
+ }
+
+ free (temp_map);
+}
+
+
+
+/*----------------------------------------------------------.
+| Map a state/symbol pair into its numeric representation. |
+`----------------------------------------------------------*/
+
+static goto_number
+map_goto (state_number s0, symbol_number sym)
+{
+ goto_number high;
+ goto_number low;
+ goto_number middle;
+ state_number s;
+
+ low = goto_map[sym - ntokens];
+ high = goto_map[sym - ntokens + 1] - 1;
+
+ for (;;)
+ {
+ assert (low <= high);
+ middle = (low + high) / 2;
+ s = from_state[middle];
+ if (s == s0)
+ return middle;
+ else if (s < s0)
+ low = middle + 1;
+ else
+ high = middle - 1;
+ }
+}
+
+
+static void
+initialize_F (void)
+{
+ goto_number **reads = xnmalloc (ngotos, sizeof *reads);
+ goto_number *edge = xnmalloc (ngotos + 1, sizeof *edge);
+ goto_number nedges = 0;
+
+ goto_number i;
+
+ F = bitsetv_create (ngotos, ntokens, BITSET_FIXED);
+
+ for (i = 0; i < ngotos; i++)
+ {
+ state_number stateno = to_state[i];
+ transitions *sp = states[stateno]->transitions;
+
+ int j;
+ FOR_EACH_SHIFT (sp, j)
+ bitset_set (F[i], TRANSITION_SYMBOL (sp, j));
+
+ for (; j < sp->num; j++)
+ {
+ symbol_number sym = TRANSITION_SYMBOL (sp, j);
+ if (nullable[sym - ntokens])
+ edge[nedges++] = map_goto (stateno, sym);
+ }
+
+ if (nedges == 0)
+ reads[i] = NULL;
+ else
+ {
+ reads[i] = xnmalloc (nedges + 1, sizeof reads[i][0]);
+ memcpy (reads[i], edge, nedges * sizeof edge[0]);
+ reads[i][nedges] = END_NODE;
+ nedges = 0;
+ }
+ }
+
+ relation_digraph (reads, ngotos, &F);
+
+ for (i = 0; i < ngotos; i++)
+ free (reads[i]);
+
+ free (reads);
+ free (edge);
+}
+
+
+static void
+add_lookback_edge (state *s, rule *r, goto_number gotono)
+{
+ int ri = state_reduction_find (s, r);
+ goto_list *sp = xmalloc (sizeof *sp);
+ sp->next = lookback[(s->reductions->look_ahead_tokens - LA) + ri];
+ sp->value = gotono;
+ lookback[(s->reductions->look_ahead_tokens - LA) + ri] = sp;
+}
+
+
+
+static void
+build_relations (void)
+{
+ goto_number *edge = xnmalloc (ngotos + 1, sizeof *edge);
+ state_number *states1 = xnmalloc (ritem_longest_rhs () + 1, sizeof *states1);
+ goto_number i;
+
+ includes = xnmalloc (ngotos, sizeof *includes);
+
+ for (i = 0; i < ngotos; i++)
+ {
+ int nedges = 0;
+ symbol_number symbol1 = states[to_state[i]]->accessing_symbol;
+ rule **rulep;
+
+ for (rulep = derives[symbol1 - ntokens]; *rulep; rulep++)
+ {
+ bool done;
+ int length = 1;
+ item_number const *rp;
+ state *s = states[from_state[i]];
+ states1[0] = s->number;
+
+ for (rp = (*rulep)->rhs; ! item_number_is_rule_number (*rp); rp++)
+ {
+ s = transitions_to (s->transitions,
+ item_number_as_symbol_number (*rp));
+ states1[length++] = s->number;
+ }
+
+ if (!s->consistent)
+ add_lookback_edge (s, *rulep, i);
+
+ length--;
+ done = false;
+ while (!done)
+ {
+ done = true;
+ /* Each rhs ends in an item number, and there is a
+ sentinel before the first rhs, so it is safe to
+ decrement RP here. */
+ rp--;
+ if (ISVAR (*rp))
+ {
+ /* Downcasting from item_number to symbol_number. */
+ edge[nedges++] = map_goto (states1[--length],
+ item_number_as_symbol_number (*rp));
+ if (nullable[*rp - ntokens])
+ done = false;
+ }
+ }
+ }
+
+ if (nedges == 0)
+ includes[i] = NULL;
+ else
+ {
+ int j;
+ includes[i] = xnmalloc (nedges + 1, sizeof includes[i][0]);
+ for (j = 0; j < nedges; j++)
+ includes[i][j] = edge[j];
+ includes[i][nedges] = END_NODE;
+ }
+ }
+
+ free (edge);
+ free (states1);
+
+ relation_transpose (&includes, ngotos);
+}
+
+
+
+static void
+compute_FOLLOWS (void)
+{
+ goto_number i;
+
+ relation_digraph (includes, ngotos, &F);
+
+ for (i = 0; i < ngotos; i++)
+ free (includes[i]);
+
+ free (includes);
+}
+
+
+static void
+compute_look_ahead_tokens (void)
+{
+ size_t i;
+ goto_list *sp;
+
+ for (i = 0; i < nLA; i++)
+ for (sp = lookback[i]; sp; sp = sp->next)
+ bitset_or (LA[i], LA[i], F[sp->value]);
+
+ /* Free LOOKBACK. */
+ for (i = 0; i < nLA; i++)
+ LIST_FREE (goto_list, lookback[i]);
+
+ free (lookback);
+ bitsetv_free (F);
+}
+
+
+/*-----------------------------------------------------.
+| Count the number of look-ahead tokens required for S |
+| (N_LOOK_AHEAD_TOKENS member). |
+`-----------------------------------------------------*/
+
+static int
+state_look_ahead_tokens_count (state *s)
+{
+ int k;
+ int n_look_ahead_tokens = 0;
+ reductions *rp = s->reductions;
+ transitions *sp = s->transitions;
+
+ /* We need a look-ahead either to distinguish different
+ reductions (i.e., there are two or more), or to distinguish a
+ reduction from a shift. Otherwise, it is straightforward,
+ and the state is `consistent'. */
+ if (rp->num > 1
+ || (rp->num == 1 && sp->num &&
+ !TRANSITION_IS_DISABLED (sp, 0) && TRANSITION_IS_SHIFT (sp, 0)))
+ n_look_ahead_tokens += rp->num;
+ else
+ s->consistent = 1;
+
+ for (k = 0; k < sp->num; k++)
+ if (!TRANSITION_IS_DISABLED (sp, k) && TRANSITION_IS_ERROR (sp, k))
+ {
+ s->consistent = 0;
+ break;
+ }
+
+ return n_look_ahead_tokens;
+}
+
+
+/*-----------------------------------------------------.
+| Compute LA, NLA, and the look_ahead_tokens members. |
+`-----------------------------------------------------*/
+
+static void
+initialize_LA (void)
+{
+ state_number i;
+ bitsetv pLA;
+
+ /* Compute the total number of reductions requiring a look-ahead. */
+ nLA = 0;
+ for (i = 0; i < nstates; i++)
+ nLA += state_look_ahead_tokens_count (states[i]);
+ /* Avoid having to special case 0. */
+ if (!nLA)
+ nLA = 1;
+
+ pLA = LA = bitsetv_create (nLA, ntokens, BITSET_FIXED);
+ lookback = xcalloc (nLA, sizeof *lookback);
+
+ /* Initialize the members LOOK_AHEAD_TOKENS for each state whose reductions
+ require look-ahead tokens. */
+ for (i = 0; i < nstates; i++)
+ {
+ int count = state_look_ahead_tokens_count (states[i]);
+ if (count)
+ {
+ states[i]->reductions->look_ahead_tokens = pLA;
+ pLA += count;
+ }
+ }
+}
+
+
+/*----------------------------------------------.
+| Output the look-ahead tokens for each state. |
+`----------------------------------------------*/
+
+static void
+look_ahead_tokens_print (FILE *out)
+{
+ state_number i;
+ int j, k;
+ fprintf (out, "Look-ahead tokens: BEGIN\n");
+ for (i = 0; i < nstates; ++i)
+ {
+ reductions *reds = states[i]->reductions;
+ bitset_iterator iter;
+ int n_look_ahead_tokens = 0;
+
+ if (reds->look_ahead_tokens)
+ for (k = 0; k < reds->num; ++k)
+ if (reds->look_ahead_tokens[k])
+ ++n_look_ahead_tokens;
+
+ fprintf (out, "State %d: %d look-ahead tokens\n",
+ i, n_look_ahead_tokens);
+
+ if (reds->look_ahead_tokens)
+ for (j = 0; j < reds->num; ++j)
+ BITSET_FOR_EACH (iter, reds->look_ahead_tokens[j], k, 0)
+ {
+ fprintf (out, " on %d (%s) -> rule %d\n",
+ k, symbols[k]->tag,
+ reds->rules[j]->number);
+ };
+ }
+ fprintf (out, "Look-ahead tokens: END\n");
+}
+
+void
+lalr (void)
+{
+ initialize_LA ();
+ set_goto_map ();
+ initialize_F ();
+ build_relations ();
+ compute_FOLLOWS ();
+ compute_look_ahead_tokens ();
+
+ if (trace_flag & trace_sets)
+ look_ahead_tokens_print (stderr);
+}
+
+
+void
+lalr_free (void)
+{
+ state_number s;
+ for (s = 0; s < nstates; ++s)
+ states[s]->reductions->look_ahead_tokens = NULL;
+ bitsetv_free (LA);
+}
diff --git a/src/lalr.h b/src/lalr.h
new file mode 100644
index 0000000..a2c1753
--- /dev/null
+++ b/src/lalr.h
@@ -0,0 +1,67 @@
+/* Compute look-ahead criteria for bison,
+
+ Copyright (C) 1984, 1986, 1989, 2000, 2002, 2004 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef LALR_H_
+# define LALR_H_
+
+# include <bitset.h>
+# include <bitsetv.h>
+
+/* Import the definition of RULE_T. */
+# include "gram.h"
+
+/* Import the definition of CORE, TRANSITIONS and REDUCTIONS. */
+# include "state.h"
+
+/* Compute how to make the finite state machine deterministic; find
+ which rules need look-ahead in each state, and which look-ahead
+ tokens they accept. */
+
+void lalr (void);
+
+/* Release the information related to look-ahead tokens. Can be performed
+ once the action tables are computed. */
+
+void lalr_free (void);
+
+
+/* lalr() builds these data structures. */
+
+/* GOTO_MAP, FROM_STATE and TO_STATE -- record each shift transition
+ which accepts a variable (a nonterminal).
+
+ FROM_STATE[T] -- state number which a transition leads from.
+ TO_STATE[T] -- state number it leads to.
+
+ All the transitions that accept a particular variable are grouped
+ together and GOTO_MAP[I - NTOKENS] is the index in FROM_STATE and
+ TO_STATE of the first of them. */
+
+typedef size_t goto_number;
+# define GOTO_NUMBER_MAXIMUM ((goto_number) -1)
+
+extern goto_number *goto_map;
+extern state_number *from_state;
+extern state_number *to_state;
+
+
+#endif /* !LALR_H_ */
diff --git a/src/location.c b/src/location.c
new file mode 100644
index 0000000..ecd3658
--- /dev/null
+++ b/src/location.c
@@ -0,0 +1,48 @@
+/* Locations for Bison
+
+ Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <quotearg.h>
+
+#include "location.h"
+
+location const empty_location;
+
+/* Output to OUT the location LOC.
+ Warning: it uses quotearg's slot 3. */
+void
+location_print (FILE *out, location loc)
+{
+ fprintf (out, "%s:%d.%d",
+ quotearg_n_style (3, escape_quoting_style, loc.start.file),
+ loc.start.line, loc.start.column);
+
+ if (loc.start.file != loc.end.file)
+ fprintf (out, "-%s:%d.%d",
+ quotearg_n_style (3, escape_quoting_style, loc.end.file),
+ loc.end.line, loc.end.column - 1);
+ else if (loc.start.line < loc.end.line)
+ fprintf (out, "-%d.%d", loc.end.line, loc.end.column - 1);
+ else if (loc.start.column < loc.end.column - 1)
+ fprintf (out, "-%d", loc.end.column - 1);
+}
diff --git a/src/location.h b/src/location.h
new file mode 100644
index 0000000..49d2a2e
--- /dev/null
+++ b/src/location.h
@@ -0,0 +1,69 @@
+/* Locations for Bison
+ Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef LOCATION_H_
+# define LOCATION_H_
+
+# include "uniqstr.h"
+
+/* A boundary between two characters. */
+typedef struct
+{
+ /* The name of the file that contains the boundary. */
+ uniqstr file;
+
+ /* The (origin-1) line that contains the boundary.
+ If this is INT_MAX, the line number has overflowed. */
+ int line;
+
+ /* The (origin-1) column just after the boundary. This is neither a
+ byte count, nor a character count; it is a column count.
+ If this is INT_MAX, the column number has overflowed. */
+ int column;
+
+} boundary;
+
+/* Return nonzero if A and B are equal boundaries. */
+static inline bool
+equal_boundaries (boundary a, boundary b)
+{
+ return (a.column == b.column
+ && a.line == b.line
+ && UNIQSTR_EQ (a.file, b.file));
+}
+
+/* A location, that is, a region of source code. */
+typedef struct
+{
+ /* Boundary just before the location starts. */
+ boundary start;
+
+ /* Boundary just after the location ends. */
+ boundary end;
+
+} location;
+
+#define YYLTYPE location
+
+extern location const empty_location;
+
+void location_print (FILE *out, location loc);
+
+#endif /* ! defined LOCATION_H_ */
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..8769fef
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,187 @@
+/* Top level entry point of Bison.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000, 2001, 2002, 2004, 2005
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitset_stats.h>
+#include <bitset.h>
+#include <timevar.h>
+
+#include "LR0.h"
+#include "complain.h"
+#include "conflicts.h"
+#include "derives.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "lalr.h"
+#include "muscle_tab.h"
+#include "nullable.h"
+#include "output.h"
+#include "print.h"
+#include "print_graph.h"
+#include "reader.h"
+#include "reduce.h"
+#include "symtab.h"
+#include "tables.h"
+#include "uniqstr.h"
+
+/* The name this program was run with, for messages. */
+char *program_name;
+
+
+
+int
+main (int argc, char *argv[])
+{
+ program_name = argv[0];
+ setlocale (LC_ALL, "");
+ (void) bindtextdomain (PACKAGE, LOCALEDIR);
+ (void) bindtextdomain ("bison-runtime", LOCALEDIR);
+ (void) textdomain (PACKAGE);
+
+ uniqstrs_new ();
+
+ getargs (argc, argv);
+
+ timevar_report = trace_flag & trace_time;
+ init_timevar ();
+ timevar_start (TV_TOTAL);
+
+ if (trace_flag & trace_bitsets)
+ bitset_stats_enable ();
+
+ muscle_init ();
+
+ /* Read the input. Copy some parts of it to FGUARD, FACTION, FTABLE
+ and FATTRS. In file reader.c. The other parts are recorded in
+ the grammar; see gram.h. */
+
+ timevar_push (TV_READER);
+ reader ();
+ timevar_pop (TV_READER);
+
+ if (complaint_issued)
+ goto finish;
+
+ /* Find useless nonterminals and productions and reduce the grammar. */
+ timevar_push (TV_REDUCE);
+ reduce_grammar ();
+ timevar_pop (TV_REDUCE);
+
+ /* Record other info about the grammar. In files derives and
+ nullable. */
+ timevar_push (TV_SETS);
+ derives_compute ();
+ nullable_compute ();
+ timevar_pop (TV_SETS);
+
+ /* Convert to nondeterministic finite state machine. In file LR0.
+ See state.h for more info. */
+ timevar_push (TV_LR0);
+ generate_states ();
+ timevar_pop (TV_LR0);
+
+ /* make it deterministic. In file lalr. */
+ timevar_push (TV_LALR);
+ lalr ();
+ timevar_pop (TV_LALR);
+
+ /* Find and record any conflicts: places where one token of
+ look-ahead is not enough to disambiguate the parsing. In file
+ conflicts. Also resolve s/r conflicts based on precedence
+ declarations. */
+ timevar_push (TV_CONFLICTS);
+ conflicts_solve ();
+ conflicts_print ();
+ timevar_pop (TV_CONFLICTS);
+
+ /* Compute the parser tables. */
+ timevar_push (TV_ACTIONS);
+ tables_generate ();
+ timevar_pop (TV_ACTIONS);
+
+ grammar_rules_never_reduced_report
+ (_("rule never reduced because of conflicts"));
+
+ /* Output file names. */
+ compute_output_file_names ();
+
+ /* Output the detailed report on the grammar. */
+ if (report_flag)
+ {
+ timevar_push (TV_REPORT);
+ print_results ();
+ timevar_pop (TV_REPORT);
+ }
+
+ /* Output the VCG graph. */
+ if (graph_flag)
+ {
+ timevar_push (TV_GRAPH);
+ print_graph ();
+ timevar_pop (TV_GRAPH);
+ }
+
+ /* Stop if there were errors, to avoid trashing previous output
+ files. */
+ if (complaint_issued)
+ goto finish;
+
+ /* Look-ahead tokens are no longer needed. */
+ timevar_push (TV_FREE);
+ lalr_free ();
+ timevar_pop (TV_FREE);
+
+ /* Output the tables and the parser to ftable. In file output. */
+ timevar_push (TV_PARSER);
+ output ();
+ timevar_pop (TV_PARSER);
+
+ timevar_push (TV_FREE);
+ nullable_free ();
+ derives_free ();
+ tables_free ();
+ states_free ();
+ reduce_free ();
+ conflicts_free ();
+ grammar_free ();
+
+ /* The scanner memory cannot be released right after parsing, as it
+ contains things such as user actions, prologue, epilogue etc. */
+ scanner_free ();
+ muscle_free ();
+ uniqstrs_free ();
+ timevar_pop (TV_FREE);
+
+ if (trace_flag & trace_bitsets)
+ bitset_stats_dump (stderr);
+
+ finish:
+
+ /* Stop timing and print the times. */
+ timevar_stop (TV_TOTAL);
+ timevar_print (stderr);
+
+ return complaint_issued ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/src/muscle_tab.c b/src/muscle_tab.c
new file mode 100644
index 0000000..2d71085
--- /dev/null
+++ b/src/muscle_tab.c
@@ -0,0 +1,241 @@
+/* Muscle table manager for Bison.
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <hash.h>
+#include <quotearg.h>
+
+#include "files.h"
+#include "muscle_tab.h"
+#include "getargs.h"
+
+typedef struct
+{
+ const char *key;
+ char *value;
+} muscle_entry;
+
+/* An obstack used to create some entries. */
+struct obstack muscle_obstack;
+
+/* Initial capacity of muscles hash table. */
+#define HT_INITIAL_CAPACITY 257
+
+static struct hash_table *muscle_table = NULL;
+
+static bool
+hash_compare_muscles (void const *x, void const *y)
+{
+ muscle_entry const *m1 = x;
+ muscle_entry const *m2 = y;
+ return strcmp (m1->key, m2->key) == 0;
+}
+
+static size_t
+hash_muscle (const void *x, size_t tablesize)
+{
+ muscle_entry const *m = x;
+ return hash_string (m->key, tablesize);
+}
+
+/*-----------------------------------------------------------------.
+| Create the MUSCLE_TABLE, and initialize it with default values. |
+| Also set up the MUSCLE_OBSTACK. |
+`-----------------------------------------------------------------*/
+
+void
+muscle_init (void)
+{
+ /* Initialize the muscle obstack. */
+ obstack_init (&muscle_obstack);
+
+ muscle_table = hash_initialize (HT_INITIAL_CAPACITY, NULL, hash_muscle,
+ hash_compare_muscles, free);
+
+ /* Version and input file. */
+ MUSCLE_INSERT_STRING ("version", VERSION);
+ MUSCLE_INSERT_C_STRING ("file_name", grammar_file);
+}
+
+
+/*------------------------------------------------------------.
+| Free all the memory consumed by the muscle machinery only. |
+`------------------------------------------------------------*/
+
+void
+muscle_free (void)
+{
+ hash_free (muscle_table);
+ obstack_free (&muscle_obstack, NULL);
+}
+
+
+
+/*------------------------------------------------------------.
+| Insert (KEY, VALUE). If KEY already existed, overwrite the |
+| previous value. |
+`------------------------------------------------------------*/
+
+void
+muscle_insert (const char *key, char *value)
+{
+ muscle_entry probe;
+ muscle_entry *entry;
+
+ probe.key = key;
+ entry = hash_lookup (muscle_table, &probe);
+
+ if (!entry)
+ {
+ /* First insertion in the hash. */
+ entry = xmalloc (sizeof *entry);
+ entry->key = key;
+ hash_insert (muscle_table, entry);
+ }
+ entry->value = value;
+}
+
+
+/*-------------------------------------------------------------------.
+| Append VALUE to the current value of KEY. If KEY did not already |
+| exist, create it. Use MUSCLE_OBSTACK. De-allocate the previously |
+| associated value. Copy VALUE and SEPARATOR. |
+`-------------------------------------------------------------------*/
+
+void
+muscle_grow (const char *key, const char *val, const char *separator)
+{
+ muscle_entry probe;
+ muscle_entry *entry = NULL;
+
+ probe.key = key;
+ entry = hash_lookup (muscle_table, &probe);
+
+ if (!entry)
+ {
+ /* First insertion in the hash. */
+ entry = xmalloc (sizeof *entry);
+ entry->key = key;
+ hash_insert (muscle_table, entry);
+ entry->value = xstrdup (val);
+ }
+ else
+ {
+ /* Grow the current value. */
+ char *new_val;
+ obstack_sgrow (&muscle_obstack, entry->value);
+ free (entry->value);
+ obstack_sgrow (&muscle_obstack, separator);
+ obstack_sgrow (&muscle_obstack, val);
+ obstack_1grow (&muscle_obstack, 0);
+ new_val = obstack_finish (&muscle_obstack);
+ entry->value = xstrdup (new_val);
+ obstack_free (&muscle_obstack, new_val);
+ }
+}
+
+
+/*------------------------------------------------------------------.
+| Append VALUE to the current value of KEY, using muscle_grow. But |
+| in addition, issue a synchronization line for the location LOC. |
+`------------------------------------------------------------------*/
+
+void
+muscle_code_grow (const char *key, const char *val, location loc)
+{
+ char *extension = NULL;
+ obstack_fgrow1 (&muscle_obstack, "]b4_syncline(%d, [[", loc.start.line);
+ MUSCLE_OBSTACK_SGROW (&muscle_obstack,
+ quotearg_style (c_quoting_style, loc.start.file));
+ obstack_sgrow (&muscle_obstack, "]])[\n");
+ obstack_sgrow (&muscle_obstack, val);
+ obstack_1grow (&muscle_obstack, 0);
+ extension = obstack_finish (&muscle_obstack);
+ muscle_grow (key, extension, "");
+}
+
+
+/*-------------------------------------------------------------------.
+| MUSCLE is an M4 list of pairs. Create or extend it with the pair |
+| (A1, A2). Note that because the muscle values are output *double* |
+| quoted, one needs to strip the first level of quotes to reach the |
+| list itself. |
+`-------------------------------------------------------------------*/
+
+void muscle_pair_list_grow (const char *muscle,
+ const char *a1, const char *a2)
+{
+ char *pair;
+ obstack_fgrow2 (&muscle_obstack, "[[[%s]], [[%s]]]", a1, a2);
+ obstack_1grow (&muscle_obstack, 0);
+ pair = obstack_finish (&muscle_obstack);
+ muscle_grow (muscle, pair, ",\n");
+ obstack_free (&muscle_obstack, pair);
+}
+
+/*-------------------------------.
+| Find the value of muscle KEY. |
+`-------------------------------*/
+
+char *
+muscle_find (const char *key)
+{
+ muscle_entry probe;
+ muscle_entry *result = NULL;
+
+ probe.key = key;
+ result = hash_lookup (muscle_table, &probe);
+ return result ? result->value : NULL;
+}
+
+
+/*------------------------------------------------.
+| Output the definition of ENTRY as a m4_define. |
+`------------------------------------------------*/
+
+static inline bool
+muscle_m4_output (muscle_entry *entry, FILE *out)
+{
+ fprintf (out, "m4_define([b4_%s],\n", entry->key);
+ fprintf (out, "[[%s]])\n\n\n", entry->value);
+ return true;
+}
+
+static bool
+muscle_m4_output_processor (void *entry, void *out)
+{
+ return muscle_m4_output (entry, out);
+}
+
+
+/*----------------------------------------------------------------.
+| Output the definition of all the current muscles into a list of |
+| m4_defines. |
+`----------------------------------------------------------------*/
+
+void
+muscles_m4_output (FILE *out)
+{
+ hash_do_for_each (muscle_table, muscle_m4_output_processor, out);
+}
diff --git a/src/muscle_tab.h b/src/muscle_tab.h
new file mode 100644
index 0000000..9e8ac24
--- /dev/null
+++ b/src/muscle_tab.h
@@ -0,0 +1,108 @@
+/* Muscle table manager for Bison,
+ Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef MUSCLE_TAB_H_
+# define MUSCLE_TAB_H_
+
+# include "location.h"
+
+void muscle_init (void);
+void muscle_insert (const char *key, char *value);
+char *muscle_find (const char *key);
+void muscle_free (void);
+
+
+/* An obstack dedicated to receive muscle keys and values. */
+extern struct obstack muscle_obstack;
+
+#define MUSCLE_INSERT_BOOL(Key, Value) \
+{ \
+ int v = Value; \
+ MUSCLE_INSERT_INT (Key, v); \
+}
+
+#define MUSCLE_INSERT_INT(Key, Value) \
+{ \
+ obstack_fgrow1 (&muscle_obstack, "%d", Value); \
+ obstack_1grow (&muscle_obstack, 0); \
+ muscle_insert (Key, obstack_finish (&muscle_obstack)); \
+}
+
+#define MUSCLE_INSERT_LONG_INT(Key, Value) \
+{ \
+ obstack_fgrow1 (&muscle_obstack, "%ld", Value); \
+ obstack_1grow (&muscle_obstack, 0); \
+ muscle_insert (Key, obstack_finish (&muscle_obstack)); \
+}
+
+#define MUSCLE_INSERT_STRING(Key, Value) \
+{ \
+ obstack_sgrow (&muscle_obstack, Value); \
+ obstack_1grow (&muscle_obstack, 0); \
+ muscle_insert (Key, obstack_finish (&muscle_obstack)); \
+}
+
+#define MUSCLE_OBSTACK_SGROW(Obstack, Value) \
+{ \
+ char const *p; \
+ for (p = Value; *p; p++) \
+ switch (*p) \
+ { \
+ case '$': obstack_sgrow (Obstack, "$]["); break; \
+ case '@': obstack_sgrow (Obstack, "@@" ); break; \
+ case '[': obstack_sgrow (Obstack, "@{" ); break; \
+ case ']': obstack_sgrow (Obstack, "@}" ); break; \
+ default: obstack_1grow (Obstack, *p); break; \
+ } \
+}
+
+#define MUSCLE_INSERT_C_STRING(Key, Value) \
+{ \
+ MUSCLE_OBSTACK_SGROW (&muscle_obstack, \
+ quotearg_style (c_quoting_style, \
+ Value)); \
+ obstack_1grow (&muscle_obstack, 0); \
+ muscle_insert (Key, obstack_finish (&muscle_obstack)); \
+}
+
+/* Insert (KEY, VALUE). If KEY already existed, overwrite the
+ previous value. Uses MUSCLE_OBSTACK. De-allocates the previously
+ associated value. VALUE and SEPARATOR are copied. */
+
+void muscle_grow (const char *key, const char *value, const char *separator);
+
+
+/* Append VALUE to the current value of KEY, using muscle_grow. But
+ in addition, issue a synchronization line for the location LOC. */
+
+void muscle_code_grow (const char *key, const char *value, location loc);
+
+
+/* MUSCLE is an M4 list of pairs. Create or extend it with the pair
+ (A1, A2). Note that because the muscle values are output *double*
+ quoted, one needs to strip the first level of quotes to reach the
+ list itself. */
+
+void muscle_pair_list_grow (const char *muscle,
+ const char *a1, const char *a2);
+
+void muscles_m4_output (FILE *out);
+
+#endif /* not MUSCLE_TAB_H_ */
diff --git a/src/nullable.c b/src/nullable.c
new file mode 100644
index 0000000..83a90e9
--- /dev/null
+++ b/src/nullable.c
@@ -0,0 +1,144 @@
+/* Calculate which nonterminals can expand into the null string for Bison.
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+
+/* Set up NULLABLE, a vector saying which nonterminals can expand into
+ the null string. NULLABLE[I - NTOKENS] is nonzero if symbol I can
+ do so. */
+
+#include <config.h>
+#include "system.h"
+
+#include "getargs.h"
+#include "gram.h"
+#include "nullable.h"
+#include "reduce.h"
+#include "symtab.h"
+
+/* Linked list of rules. */
+typedef struct rule_list
+{
+ struct rule_list *next;
+ rule *value;
+} rule_list;
+
+bool *nullable = NULL;
+
+static void
+nullable_print (FILE *out)
+{
+ int i;
+ fputs ("NULLABLE\n", out);
+ for (i = ntokens; i < nsyms; i++)
+ fprintf (out, "\t%s: %s\n", symbols[i]->tag,
+ nullable[i - ntokens] ? "yes" : "no");
+ fputs ("\n\n", out);
+}
+
+void
+nullable_compute (void)
+{
+ rule_number ruleno;
+ symbol_number *s1;
+ symbol_number *s2;
+ rule_list *p;
+
+ symbol_number *squeue = xnmalloc (nvars, sizeof *squeue);
+ size_t *rcount = xcalloc (nrules, sizeof *rcount);
+ /* RITEM contains all the rules, including useless productions.
+ Hence we must allocate room for useless nonterminals too. */
+ rule_list **rsets = xcalloc (nvars, sizeof *rsets);
+ /* This is said to be more elements than we actually use.
+ Supposedly NRITEMS - NRULES is enough. But why take the risk? */
+ rule_list *relts = xnmalloc (nritems + nvars + 1, sizeof *relts);
+
+ nullable = xcalloc (nvars, sizeof *nullable);
+
+ s1 = s2 = squeue;
+ p = relts;
+
+ for (ruleno = 0; ruleno < nrules; ++ruleno)
+ if (rules[ruleno].useful)
+ {
+ rule *rules_ruleno = &rules[ruleno];
+ if (rules_ruleno->rhs[0] >= 0)
+ {
+ /* This rule has a non empty RHS. */
+ item_number *rp = NULL;
+ bool any_tokens = false;
+ for (rp = rules_ruleno->rhs; *rp >= 0; ++rp)
+ if (ISTOKEN (*rp))
+ any_tokens = true;
+
+ /* This rule has only nonterminals: schedule it for the second
+ pass. */
+ if (!any_tokens)
+ for (rp = rules_ruleno->rhs; *rp >= 0; ++rp)
+ {
+ rcount[ruleno]++;
+ p->next = rsets[*rp - ntokens];
+ p->value = rules_ruleno;
+ rsets[*rp - ntokens] = p;
+ p++;
+ }
+ }
+ else
+ {
+ /* This rule has an empty RHS. */
+ assert (item_number_as_rule_number (rules_ruleno->rhs[0])
+ == ruleno);
+ if (rules_ruleno->useful
+ && ! nullable[rules_ruleno->lhs->number - ntokens])
+ {
+ nullable[rules_ruleno->lhs->number - ntokens] = true;
+ *s2++ = rules_ruleno->lhs->number;
+ }
+ }
+ }
+
+ while (s1 < s2)
+ for (p = rsets[*s1++ - ntokens]; p; p = p->next)
+ {
+ rule *r = p->value;
+ if (--rcount[r->number] == 0)
+ if (r->useful && ! nullable[r->lhs->number - ntokens])
+ {
+ nullable[r->lhs->number - ntokens] = true;
+ *s2++ = r->lhs->number;
+ }
+ }
+
+ free (squeue);
+ free (rcount);
+ free (rsets);
+ free (relts);
+
+ if (trace_flag & trace_sets)
+ nullable_print (stderr);
+}
+
+
+void
+nullable_free (void)
+{
+ free (nullable);
+}
diff --git a/src/nullable.h b/src/nullable.h
new file mode 100644
index 0000000..d5106c7
--- /dev/null
+++ b/src/nullable.h
@@ -0,0 +1,33 @@
+/* Part of the bison parser generator,
+ Copyright (C) 2000, 2002 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef NULLABLE_H_
+# define NULLABLE_H_
+
+/* A vector saying which nonterminals can expand into the null string.
+ NULLABLE[I - NTOKENS] is nonzero if symbol I can do so. */
+extern bool *nullable;
+
+/* Set up NULLABLE. */
+extern void nullable_compute (void);
+
+/* Free NULLABLE. */
+extern void nullable_free (void);
+#endif /* !NULLABLE_H_ */
diff --git a/src/output.c b/src/output.c
new file mode 100644
index 0000000..6a02bb3
--- /dev/null
+++ b/src/output.c
@@ -0,0 +1,652 @@
+/* Output the generated parsing program for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <error.h>
+#include <get-errno.h>
+#include <quotearg.h>
+#include <subpipe.h>
+#include <timevar.h>
+
+#include "complain.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "muscle_tab.h"
+#include "output.h"
+#include "reader.h"
+#include "scan-skel.h"
+#include "symtab.h"
+#include "tables.h"
+
+
+static struct obstack format_obstack;
+
+
+/*-------------------------------------------------------------------.
+| Create a function NAME which associates to the muscle NAME the |
+| result of formatting the FIRST and then TABLE_DATA[BEGIN..END[ (of |
+| TYPE), and to the muscle NAME_max, the max value of the |
+| TABLE_DATA. |
+`-------------------------------------------------------------------*/
+
+
+#define GENERATE_MUSCLE_INSERT_TABLE(Name, Type) \
+ \
+static void \
+Name (char const *name, \
+ Type *table_data, \
+ Type first, \
+ int begin, \
+ int end) \
+{ \
+ Type min = first; \
+ Type max = first; \
+ long int lmin; \
+ long int lmax; \
+ int i; \
+ int j = 1; \
+ \
+ obstack_fgrow1 (&format_obstack, "%6d", first); \
+ for (i = begin; i < end; ++i) \
+ { \
+ obstack_1grow (&format_obstack, ','); \
+ if (j >= 10) \
+ { \
+ obstack_sgrow (&format_obstack, "\n "); \
+ j = 1; \
+ } \
+ else \
+ ++j; \
+ obstack_fgrow1 (&format_obstack, "%6d", table_data[i]); \
+ if (table_data[i] < min) \
+ min = table_data[i]; \
+ if (max < table_data[i]) \
+ max = table_data[i]; \
+ } \
+ obstack_1grow (&format_obstack, 0); \
+ muscle_insert (name, obstack_finish (&format_obstack)); \
+ \
+ lmin = min; \
+ lmax = max; \
+ /* Build `NAME_min' and `NAME_max' in the obstack. */ \
+ obstack_fgrow1 (&format_obstack, "%s_min", name); \
+ obstack_1grow (&format_obstack, 0); \
+ MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), lmin); \
+ obstack_fgrow1 (&format_obstack, "%s_max", name); \
+ obstack_1grow (&format_obstack, 0); \
+ MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), lmax); \
+}
+
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_unsigned_int_table, unsigned int)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_int_table, int)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_base_table, base_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_rule_number_table, rule_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_symbol_number_table, symbol_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_item_number_table, item_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_state_number_table, state_number)
+
+
+/*--------------------------------------------------------------------.
+| Print to OUT a representation of STRING escaped both for C and M4. |
+`--------------------------------------------------------------------*/
+
+static void
+escaped_output (FILE *out, char const *string)
+{
+ char const *p;
+ fprintf (out, "[[");
+
+ for (p = quotearg_style (c_quoting_style, string); *p; p++)
+ switch (*p)
+ {
+ case '$': fputs ("$][", out); break;
+ case '@': fputs ("@@", out); break;
+ case '[': fputs ("@{", out); break;
+ case ']': fputs ("@}", out); break;
+ default: fputc (*p, out); break;
+ }
+
+ fprintf (out, "]]");
+}
+
+
+/*------------------------------------------------------------------.
+| Prepare the muscles related to the symbols: translate, tname, and |
+| toknum. |
+`------------------------------------------------------------------*/
+
+static void
+prepare_symbols (void)
+{
+ MUSCLE_INSERT_BOOL ("token_table", token_table_flag);
+ MUSCLE_INSERT_INT ("tokens_number", ntokens);
+ MUSCLE_INSERT_INT ("nterms_number", nvars);
+ MUSCLE_INSERT_INT ("undef_token_number", undeftoken->number);
+ MUSCLE_INSERT_INT ("user_token_number_max", max_user_token_number);
+
+ muscle_insert_symbol_number_table ("translate",
+ token_translations,
+ token_translations[0],
+ 1, max_user_token_number + 1);
+
+ /* tname -- token names. */
+ {
+ int i;
+ /* We assume that the table will be output starting at column 2. */
+ int j = 2;
+ for (i = 0; i < nsyms; i++)
+ {
+ char const *cp = quotearg_style (c_quoting_style, symbols[i]->tag);
+ /* Width of the next token, including the two quotes, the
+ comma and the space. */
+ int width = strlen (cp) + 2;
+
+ if (j + width > 75)
+ {
+ obstack_sgrow (&format_obstack, "\n ");
+ j = 1;
+ }
+
+ if (i)
+ obstack_1grow (&format_obstack, ' ');
+ MUSCLE_OBSTACK_SGROW (&format_obstack, cp);
+ obstack_1grow (&format_obstack, ',');
+ j += width;
+ }
+ /* Add a NULL entry to list of tokens (well, 0, as NULL might not be
+ defined). */
+ obstack_sgrow (&format_obstack, " 0");
+
+ /* Finish table and store. */
+ obstack_1grow (&format_obstack, 0);
+ muscle_insert ("tname", obstack_finish (&format_obstack));
+ }
+
+ /* Output YYTOKNUM. */
+ {
+ int i;
+ int *values = xnmalloc (ntokens, sizeof *values);
+ for (i = 0; i < ntokens; ++i)
+ values[i] = symbols[i]->user_token_number;
+ muscle_insert_int_table ("toknum", values,
+ values[0], 1, ntokens);
+ free (values);
+ }
+}
+
+
+/*-------------------------------------------------------------.
+| Prepare the muscles related to the rules: rhs, prhs, r1, r2, |
+| rline, dprec, merger. |
+`-------------------------------------------------------------*/
+
+static void
+prepare_rules (void)
+{
+ rule_number r;
+ unsigned int i = 0;
+ item_number *rhs = xnmalloc (nritems, sizeof *rhs);
+ unsigned int *prhs = xnmalloc (nrules, sizeof *prhs);
+ unsigned int *rline = xnmalloc (nrules, sizeof *rline);
+ symbol_number *r1 = xnmalloc (nrules, sizeof *r1);
+ unsigned int *r2 = xnmalloc (nrules, sizeof *r2);
+ int *dprec = xnmalloc (nrules, sizeof *dprec);
+ int *merger = xnmalloc (nrules, sizeof *merger);
+
+ for (r = 0; r < nrules; ++r)
+ {
+ item_number *rhsp = NULL;
+ /* Index of rule R in RHS. */
+ prhs[r] = i;
+ /* RHS of the rule R. */
+ for (rhsp = rules[r].rhs; *rhsp >= 0; ++rhsp)
+ rhs[i++] = *rhsp;
+ /* LHS of the rule R. */
+ r1[r] = rules[r].lhs->number;
+ /* Length of rule R's RHS. */
+ r2[r] = i - prhs[r];
+ /* Separator in RHS. */
+ rhs[i++] = -1;
+ /* Line where rule was defined. */
+ rline[r] = rules[r].location.start.line;
+ /* Dynamic precedence (GLR). */
+ dprec[r] = rules[r].dprec;
+ /* Merger-function index (GLR). */
+ merger[r] = rules[r].merger;
+ }
+ assert (i == nritems);
+
+ muscle_insert_item_number_table ("rhs", rhs, ritem[0], 1, nritems);
+ muscle_insert_unsigned_int_table ("prhs", prhs, 0, 0, nrules);
+ muscle_insert_unsigned_int_table ("rline", rline, 0, 0, nrules);
+ muscle_insert_symbol_number_table ("r1", r1, 0, 0, nrules);
+ muscle_insert_unsigned_int_table ("r2", r2, 0, 0, nrules);
+ muscle_insert_int_table ("dprec", dprec, 0, 0, nrules);
+ muscle_insert_int_table ("merger", merger, 0, 0, nrules);
+
+ MUSCLE_INSERT_INT ("rules_number", nrules);
+ MUSCLE_INSERT_INT ("max_left_semantic_context", max_left_semantic_context);
+
+ free (rhs);
+ free (prhs);
+ free (rline);
+ free (r1);
+ free (r2);
+ free (dprec);
+ free (merger);
+}
+
+/*--------------------------------------------.
+| Prepare the muscles related to the states. |
+`--------------------------------------------*/
+
+static void
+prepare_states (void)
+{
+ state_number i;
+ symbol_number *values = xnmalloc (nstates, sizeof *values);
+ for (i = 0; i < nstates; ++i)
+ values[i] = states[i]->accessing_symbol;
+ muscle_insert_symbol_number_table ("stos", values,
+ 0, 1, nstates);
+ free (values);
+
+ MUSCLE_INSERT_INT ("last", high);
+ MUSCLE_INSERT_INT ("final_state_number", final_state->number);
+ MUSCLE_INSERT_INT ("states_number", nstates);
+}
+
+
+
+/*---------------------------------.
+| Output the user actions to OUT. |
+`---------------------------------*/
+
+static void
+user_actions_output (FILE *out)
+{
+ rule_number r;
+
+ fputs ("m4_define([b4_actions], \n[[", out);
+ for (r = 0; r < nrules; ++r)
+ if (rules[r].action)
+ {
+ fprintf (out, " case %d:\n", r + 1);
+
+ fprintf (out, "]b4_syncline(%d, ",
+ rules[r].action_location.start.line);
+ escaped_output (out, rules[r].action_location.start.file);
+ fprintf (out, ")[\n");
+ fprintf (out, " %s\n break;\n\n",
+ rules[r].action);
+ }
+ fputs ("]])\n\n", out);
+}
+
+/*--------------------------------------.
+| Output the merge functions to OUT. |
+`--------------------------------------*/
+
+static void
+merger_output (FILE *out)
+{
+ int n;
+ merger_list* p;
+
+ fputs ("m4_define([b4_mergers], \n[[", out);
+ for (n = 1, p = merge_functions; p != NULL; n += 1, p = p->next)
+ {
+ if (p->type[0] == '\0')
+ fprintf (out, " case %d: *yy0 = %s (*yy0, *yy1); break;\n",
+ n, p->name);
+ else
+ fprintf (out, " case %d: yy0->%s = %s (*yy0, *yy1); break;\n",
+ n, p->type, p->name);
+ }
+ fputs ("]])\n\n", out);
+}
+
+/*--------------------------------------.
+| Output the tokens definition to OUT. |
+`--------------------------------------*/
+
+static void
+token_definitions_output (FILE *out)
+{
+ int i;
+ char const *sep = "";
+
+ fputs ("m4_define([b4_tokens], \n[", out);
+ for (i = 0; i < ntokens; ++i)
+ {
+ symbol *sym = symbols[i];
+ int number = sym->user_token_number;
+
+ /* At this stage, if there are literal aliases, they are part of
+ SYMBOLS, so we should not find symbols which are the aliases
+ here. */
+ assert (number != USER_NUMBER_ALIAS);
+
+ /* Skip error token. */
+ if (sym == errtoken)
+ continue;
+
+ /* If this string has an alias, then it is necessarily the alias
+ which is to be output. */
+ if (sym->alias)
+ sym = sym->alias;
+
+ /* Don't output literal chars or strings (when defined only as a
+ string). Note that must be done after the alias resolution:
+ think about `%token 'f' "f"'. */
+ if (sym->tag[0] == '\'' || sym->tag[0] == '\"')
+ continue;
+
+ /* Don't #define nonliteral tokens whose names contain periods
+ or '$' (as does the default value of the EOF token). */
+ if (strchr (sym->tag, '.') || strchr (sym->tag, '$'))
+ continue;
+
+ fprintf (out, "%s[[[%s]], %d]",
+ sep, sym->tag, number);
+ sep = ",\n";
+ }
+ fputs ("])\n\n", out);
+}
+
+
+/*---------------------------------------.
+| Output the symbol destructors to OUT. |
+`---------------------------------------*/
+
+static void
+symbol_destructors_output (FILE *out)
+{
+ int i;
+ char const *sep = "";
+
+ fputs ("m4_define([b4_symbol_destructors], \n[", out);
+ for (i = 0; i < nsyms; ++i)
+ if (symbols[i]->destructor)
+ {
+ symbol *sym = symbols[i];
+
+ /* Filename, lineno,
+ Symbol-name, Symbol-number,
+ destructor, optional typename. */
+ fprintf (out, "%s[", sep);
+ sep = ",\n";
+ escaped_output (out, sym->destructor_location.start.file);
+ fprintf (out, ", %d, ", sym->destructor_location.start.line);
+ escaped_output (out, sym->tag);
+ fprintf (out, ", %d, [[%s]]", sym->number, sym->destructor);
+ if (sym->type_name)
+ fprintf (out, ", [[%s]]", sym->type_name);
+ fputc (']', out);
+ }
+ fputs ("])\n\n", out);
+}
+
+
+/*------------------------------------.
+| Output the symbol printers to OUT. |
+`------------------------------------*/
+
+static void
+symbol_printers_output (FILE *out)
+{
+ int i;
+ char const *sep = "";
+
+ fputs ("m4_define([b4_symbol_printers], \n[", out);
+ for (i = 0; i < nsyms; ++i)
+ if (symbols[i]->printer)
+ {
+ symbol *sym = symbols[i];
+
+ /* Filename, lineno,
+ Symbol-name, Symbol-number,
+ printer, optional typename. */
+ fprintf (out, "%s[", sep);
+ sep = ",\n";
+ escaped_output (out, sym->printer_location.start.file);
+ fprintf (out, ", %d, ", sym->printer_location.start.line);
+ escaped_output (out, sym->tag);
+ fprintf (out, ", %d, [[%s]]", sym->number, sym->printer);
+ if (sym->type_name)
+ fprintf (out, ", [[%s]]", sym->type_name);
+ fputc (']', out);
+ }
+ fputs ("])\n\n", out);
+}
+
+
+static void
+prepare_actions (void)
+{
+ /* Figure out the actions for the specified state, indexed by
+ look-ahead token type. */
+
+ muscle_insert_rule_number_table ("defact", yydefact,
+ yydefact[0], 1, nstates);
+
+ /* Figure out what to do after reducing with each rule, depending on
+ the saved state from before the beginning of parsing the data
+ that matched this rule. */
+ muscle_insert_state_number_table ("defgoto", yydefgoto,
+ yydefgoto[0], 1, nsyms - ntokens);
+
+
+ /* Output PACT. */
+ muscle_insert_base_table ("pact", base,
+ base[0], 1, nstates);
+ MUSCLE_INSERT_INT ("pact_ninf", base_ninf);
+
+ /* Output PGOTO. */
+ muscle_insert_base_table ("pgoto", base,
+ base[nstates], nstates + 1, nvectors);
+
+ muscle_insert_base_table ("table", table,
+ table[0], 1, high + 1);
+ MUSCLE_INSERT_INT ("table_ninf", table_ninf);
+
+ muscle_insert_base_table ("check", check,
+ check[0], 1, high + 1);
+
+ /* GLR parsing slightly modifies YYTABLE and YYCHECK (and thus
+ YYPACT) so that in states with unresolved conflicts, the default
+ reduction is not used in the conflicted entries, so that there is
+ a place to put a conflict pointer.
+
+ This means that YYCONFLP and YYCONFL are nonsense for a non-GLR
+ parser, so we could avoid accidents by not writing them out in
+ that case. Nevertheless, it seems even better to be able to use
+ the GLR skeletons even without the non-deterministic tables. */
+ muscle_insert_unsigned_int_table ("conflict_list_heads", conflict_table,
+ conflict_table[0], 1, high + 1);
+ muscle_insert_unsigned_int_table ("conflicting_rules", conflict_list,
+ 0, 1, conflict_list_cnt);
+}
+
+
+/*---------------------------.
+| Call the skeleton parser. |
+`---------------------------*/
+
+static void
+output_skeleton (void)
+{
+ FILE *in;
+ FILE *out;
+ int filter_fd[2];
+ char const *argv[6];
+ pid_t pid;
+
+ /* Compute the names of the package data dir and skeleton file.
+ Test whether m4sugar.m4 is readable, to check for proper
+ installation. A faulty installation can cause deadlock, so a
+ cheap sanity check is worthwhile. */
+ char const m4sugar[] = "m4sugar/m4sugar.m4";
+ char *full_m4sugar;
+ char *full_skeleton;
+ char const *p;
+ char const *m4 = (p = getenv ("M4")) ? p : M4;
+ char const *pkgdatadir = (p = getenv ("BISON_PKGDATADIR")) ? p : PKGDATADIR;
+ size_t skeleton_size = strlen (skeleton) + 1;
+ size_t pkgdatadirlen = strlen (pkgdatadir);
+ while (pkgdatadirlen && pkgdatadir[pkgdatadirlen - 1] == '/')
+ pkgdatadirlen--;
+ full_skeleton = xmalloc (pkgdatadirlen + 1
+ + (skeleton_size < sizeof m4sugar
+ ? sizeof m4sugar : skeleton_size));
+ strcpy (full_skeleton, pkgdatadir);
+ full_skeleton[pkgdatadirlen] = '/';
+ strcpy (full_skeleton + pkgdatadirlen + 1, m4sugar);
+ full_m4sugar = xstrdup (full_skeleton);
+ strcpy (full_skeleton + pkgdatadirlen + 1, skeleton);
+ xfclose (xfopen (full_m4sugar, "r"));
+
+ /* Create an m4 subprocess connected to us via two pipes. */
+
+ if (trace_flag & trace_tools)
+ fprintf (stderr, "running: %s %s - %s\n",
+ m4, full_m4sugar, full_skeleton);
+
+ argv[0] = m4;
+ argv[1] = full_m4sugar;
+ argv[2] = "-";
+ argv[3] = full_skeleton;
+ argv[4] = trace_flag & trace_m4 ? "-dV" : NULL;
+ argv[5] = NULL;
+
+ init_subpipe ();
+ pid = create_subpipe (argv, filter_fd);
+ free (full_m4sugar);
+ free (full_skeleton);
+
+ out = fdopen (filter_fd[0], "w");
+ if (! out)
+ error (EXIT_FAILURE, get_errno (),
+ "fdopen");
+
+ /* Output the definitions of all the muscles. */
+ fputs ("m4_init()\n", out);
+
+ user_actions_output (out);
+ merger_output (out);
+ token_definitions_output (out);
+ symbol_destructors_output (out);
+ symbol_printers_output (out);
+
+ muscles_m4_output (out);
+
+ fputs ("m4_wrap([m4_divert_pop(0)])\n", out);
+ fputs ("m4_divert_push(0)dnl\n", out);
+ xfclose (out);
+
+ /* Read and process m4's output. */
+ timevar_push (TV_M4);
+ end_of_output_subpipe (pid, filter_fd);
+ in = fdopen (filter_fd[1], "r");
+ if (! in)
+ error (EXIT_FAILURE, get_errno (),
+ "fdopen");
+ scan_skel (in);
+ xfclose (in);
+ reap_subpipe (pid, m4);
+ timevar_pop (TV_M4);
+}
+
+static void
+prepare (void)
+{
+ /* Flags. */
+ MUSCLE_INSERT_BOOL ("debug_flag", debug_flag);
+ MUSCLE_INSERT_BOOL ("defines_flag", defines_flag);
+ MUSCLE_INSERT_BOOL ("error_verbose_flag", error_verbose);
+ MUSCLE_INSERT_BOOL ("locations_flag", locations_flag);
+ MUSCLE_INSERT_BOOL ("pure_flag", pure_parser);
+ MUSCLE_INSERT_BOOL ("synclines_flag", !no_lines_flag);
+
+ /* File names. */
+ MUSCLE_INSERT_STRING ("prefix", spec_name_prefix ? spec_name_prefix : "yy");
+#define DEFINE(Name) MUSCLE_INSERT_STRING (#Name, Name ? Name : "")
+ DEFINE (dir_prefix);
+ DEFINE (parser_file_name);
+ DEFINE (spec_defines_file);
+ DEFINE (spec_file_prefix);
+ DEFINE (spec_graph_file);
+ DEFINE (spec_name_prefix);
+ DEFINE (spec_outfile);
+ DEFINE (spec_verbose_file);
+#undef DEFINE
+
+ /* User Code. */
+ obstack_1grow (&pre_prologue_obstack, 0);
+ obstack_1grow (&post_prologue_obstack, 0);
+ muscle_insert ("pre_prologue", obstack_finish (&pre_prologue_obstack));
+ muscle_insert ("post_prologue", obstack_finish (&post_prologue_obstack));
+
+ /* Find the right skeleton file. */
+ if (!skeleton)
+ {
+ if (glr_parser || nondeterministic_parser)
+ skeleton = "glr.c";
+ else
+ skeleton = "yacc.c";
+ }
+
+ /* About the skeletons. */
+ {
+ char const *pkgdatadir = getenv ("BISON_PKGDATADIR");
+ MUSCLE_INSERT_STRING ("pkgdatadir", pkgdatadir ? pkgdatadir : PKGDATADIR);
+ MUSCLE_INSERT_C_STRING ("skeleton", skeleton);
+ }
+}
+
+
+/*----------------------------------------------------------.
+| Output the parsing tables and the parser code to ftable. |
+`----------------------------------------------------------*/
+
+void
+output (void)
+{
+ obstack_init (&format_obstack);
+
+ prepare_symbols ();
+ prepare_rules ();
+ prepare_states ();
+ prepare_actions ();
+
+ prepare ();
+
+ /* Process the selected skeleton file. */
+ output_skeleton ();
+
+ obstack_free (&format_obstack, NULL);
+ obstack_free (&pre_prologue_obstack, NULL);
+ obstack_free (&post_prologue_obstack, NULL);
+}
diff --git a/src/output.h b/src/output.h
new file mode 100644
index 0000000..784f227
--- /dev/null
+++ b/src/output.h
@@ -0,0 +1,27 @@
+/* Output the generated parsing program for bison,
+ Copyright (C) 2000, 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifndef OUTPUT_H_
+# define OUTPUT_H_
+
+/* Output the parsing tables and the parser code to FTABLE. */
+void output (void);
+
+#endif /* !OUTPUT_H_ */
diff --git a/src/parse-gram.c b/src/parse-gram.c
new file mode 100644
index 0000000..2b77f3e
--- /dev/null
+++ b/src/parse-gram.c
@@ -0,0 +1,2485 @@
+/* A Bison parser, made by GNU Bison 2.2a. */
+
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+ simplifying the original so-called "semantic" parser. */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+ infringing on user name space. This should be done even for local
+ variables, as they might otherwise be expanded by user macros.
+ There are some unavoidable exceptions within include files to
+ define necessary library symbols; they are noted "INFRINGES ON
+ USER NAME SPACE" below. */
+
+/* Identify Bison output. */
+#define YYBISON 1
+
+/* Bison version. */
+#define YYBISON_VERSION "2.2a"
+
+/* Skeleton name. */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers. */
+#define YYPURE 1
+
+/* Using locations. */
+#define YYLSP_NEEDED 1
+
+/* Substitute the variable and function names. */
+#define yyparse gram_parse
+#define yylex gram_lex
+#define yyerror gram_error
+#define yylval gram_lval
+#define yychar gram_char
+#define yydebug gram_debug
+#define yynerrs gram_nerrs
+#define yylloc gram_lloc
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ GRAM_EOF = 0,
+ STRING = 258,
+ INT = 259,
+ PERCENT_TOKEN = 260,
+ PERCENT_NTERM = 261,
+ PERCENT_TYPE = 262,
+ PERCENT_DESTRUCTOR = 263,
+ PERCENT_PRINTER = 264,
+ PERCENT_UNION = 265,
+ PERCENT_LEFT = 266,
+ PERCENT_RIGHT = 267,
+ PERCENT_NONASSOC = 268,
+ PERCENT_PREC = 269,
+ PERCENT_DPREC = 270,
+ PERCENT_MERGE = 271,
+ PERCENT_DEBUG = 272,
+ PERCENT_DEFAULT_PREC = 273,
+ PERCENT_DEFINE = 274,
+ PERCENT_DEFINES = 275,
+ PERCENT_ERROR_VERBOSE = 276,
+ PERCENT_EXPECT = 277,
+ PERCENT_EXPECT_RR = 278,
+ PERCENT_FILE_PREFIX = 279,
+ PERCENT_GLR_PARSER = 280,
+ PERCENT_INITIAL_ACTION = 281,
+ PERCENT_LEX_PARAM = 282,
+ PERCENT_LOCATIONS = 283,
+ PERCENT_NAME_PREFIX = 284,
+ PERCENT_NO_DEFAULT_PREC = 285,
+ PERCENT_NO_LINES = 286,
+ PERCENT_NONDETERMINISTIC_PARSER = 287,
+ PERCENT_OUTPUT = 288,
+ PERCENT_PARSE_PARAM = 289,
+ PERCENT_PURE_PARSER = 290,
+ PERCENT_REQUIRE = 291,
+ PERCENT_SKELETON = 292,
+ PERCENT_START = 293,
+ PERCENT_TOKEN_TABLE = 294,
+ PERCENT_VERBOSE = 295,
+ PERCENT_YACC = 296,
+ TYPE = 297,
+ EQUAL = 298,
+ SEMICOLON = 299,
+ PIPE = 300,
+ ID = 301,
+ ID_COLON = 302,
+ PERCENT_PERCENT = 303,
+ PROLOGUE = 304,
+ EPILOGUE = 305,
+ BRACED_CODE = 306
+ };
+#endif
+/* Tokens. */
+#define GRAM_EOF 0
+#define STRING 258
+#define INT 259
+#define PERCENT_TOKEN 260
+#define PERCENT_NTERM 261
+#define PERCENT_TYPE 262
+#define PERCENT_DESTRUCTOR 263
+#define PERCENT_PRINTER 264
+#define PERCENT_UNION 265
+#define PERCENT_LEFT 266
+#define PERCENT_RIGHT 267
+#define PERCENT_NONASSOC 268
+#define PERCENT_PREC 269
+#define PERCENT_DPREC 270
+#define PERCENT_MERGE 271
+#define PERCENT_DEBUG 272
+#define PERCENT_DEFAULT_PREC 273
+#define PERCENT_DEFINE 274
+#define PERCENT_DEFINES 275
+#define PERCENT_ERROR_VERBOSE 276
+#define PERCENT_EXPECT 277
+#define PERCENT_EXPECT_RR 278
+#define PERCENT_FILE_PREFIX 279
+#define PERCENT_GLR_PARSER 280
+#define PERCENT_INITIAL_ACTION 281
+#define PERCENT_LEX_PARAM 282
+#define PERCENT_LOCATIONS 283
+#define PERCENT_NAME_PREFIX 284
+#define PERCENT_NO_DEFAULT_PREC 285
+#define PERCENT_NO_LINES 286
+#define PERCENT_NONDETERMINISTIC_PARSER 287
+#define PERCENT_OUTPUT 288
+#define PERCENT_PARSE_PARAM 289
+#define PERCENT_PURE_PARSER 290
+#define PERCENT_REQUIRE 291
+#define PERCENT_SKELETON 292
+#define PERCENT_START 293
+#define PERCENT_TOKEN_TABLE 294
+#define PERCENT_VERBOSE 295
+#define PERCENT_YACC 296
+#define TYPE 297
+#define EQUAL 298
+#define SEMICOLON 299
+#define PIPE 300
+#define ID 301
+#define ID_COLON 302
+#define PERCENT_PERCENT 303
+#define PROLOGUE 304
+#define EPILOGUE 305
+#define BRACED_CODE 306
+
+
+
+
+/* Copy the first part of user declarations. */
+#line 1 "parse-gram.y"
+/* Bison Grammar Parser -*- C -*-
+
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301 USA
+*/
+
+#include <config.h>
+#include "system.h"
+
+#include "complain.h"
+#include "conflicts.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "muscle_tab.h"
+#include "quotearg.h"
+#include "reader.h"
+#include "symlist.h"
+#include "strverscmp.h"
+
+#define YYLLOC_DEFAULT(Current, Rhs, N) (Current) = lloc_default (Rhs, N)
+static YYLTYPE lloc_default (YYLTYPE const *, int);
+
+#define YY_LOCATION_PRINT(File, Loc) \
+ location_print (File, Loc)
+
+static void version_check (location const *loc, char const *version);
+
+/* Request detailed syntax error messages, and pass them to GRAM_ERROR.
+ FIXME: depends on the undocumented availability of YYLLOC. */
+#undef yyerror
+#define yyerror(Msg) \
+ gram_error (&yylloc, Msg)
+static void gram_error (location const *, char const *);
+
+static void add_param (char const *, char *, location);
+
+static symbol_class current_class = unknown_sym;
+static uniqstr current_type = 0;
+static symbol *current_lhs;
+static location current_lhs_location;
+static int current_prec = 0;
+
+#ifdef UINT_FAST8_MAX
+# define YYTYPE_UINT8 uint_fast8_t
+#endif
+#ifdef INT_FAST8_MAX
+# define YYTYPE_INT8 int_fast8_t
+#endif
+#ifdef UINT_FAST16_MAX
+# define YYTYPE_UINT16 uint_fast16_t
+#endif
+#ifdef INT_FAST16_MAX
+# define YYTYPE_INT16 int_fast16_t
+#endif
+
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG 1
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 1
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+#line 94 "parse-gram.y"
+{
+ symbol *symbol;
+ symbol_list *list;
+ int integer;
+ char *chars;
+ assoc assoc;
+ uniqstr uniqstr;
+}
+/* Line 193 of yacc.c. */
+#line 290 "parse-gram.c"
+ YYSTYPE;
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+/* Copy the second part of user declarations. */
+
+
+/* Line 216 of yacc.c. */
+#line 315 "parse-gram.c"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int i)
+#else
+static int
+YYID (i)
+ int i;
+#endif
+{
+ return i;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# endif
+# endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+ /* Pacify GCC's `empty if-body' warning. */
+# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+# ifndef YYSTACK_ALLOC_MAXIMUM
+ /* The OS might guarantee only one guard page at the bottom of the stack,
+ and a page size can be as small as 4096 bytes. So we cannot safely
+ invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
+ to allow for a few compiler-allocated temporary stack slots. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+# endif
+# else
+# define YYSTACK_ALLOC YYMALLOC
+# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined _STDLIB_H \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# ifndef YYFREE
+# define YYFREE free
+# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+ && (! defined __cplusplus \
+ || (defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+ && defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member. */
+union yyalloc
+{
+ yytype_int16 yyss;
+ YYSTYPE yyvs;
+ YYLTYPE yyls;
+};
+
+/* The size of the maximum gap between one aligned stack and the next. */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+ N elements. */
+# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ + 2 * YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(To, From, Count) \
+ __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# else
+# define YYCOPY(To, From, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (To)[yyi] = (From)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+
+/* Relocate STACK from its old location to the new one. The
+ local variables YYSIZE and YYSTACKSIZE give the old and new number of
+ elements in the stack, and YYPTR gives the new location of the
+ stack. Advance YYPTR to a properly aligned location for the next
+ stack. */
+# define YYSTACK_RELOCATE(Stack) \
+ do \
+ { \
+ YYSIZE_T yynewbytes; \
+ YYCOPY (&yyptr->Stack, Stack, yysize); \
+ Stack = &yyptr->Stack; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+ yyptr += yynewbytes / sizeof (*yyptr); \
+ } \
+ while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL 3
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST 161
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS 52
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS 26
+/* YYNRULES -- Number of rules. */
+#define YYNRULES 82
+/* YYNRULES -- Number of states. */
+#define YYNSTATES 111
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+#define YYUNDEFTOK 2
+#define YYMAXUTOK 306
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
+ 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const yytype_uint8 yyprhs[] =
+{
+ 0, 0, 3, 8, 9, 12, 14, 16, 18, 21,
+ 25, 27, 29, 32, 35, 39, 41, 43, 45, 47,
+ 51, 53, 55, 59, 61, 63, 66, 69, 71, 73,
+ 75, 77, 79, 81, 84, 86, 89, 92, 94, 96,
+ 97, 101, 102, 106, 110, 114, 116, 118, 120, 121,
+ 123, 125, 128, 130, 132, 135, 138, 142, 144, 147,
+ 149, 152, 154, 157, 160, 161, 165, 167, 171, 174,
+ 175, 178, 181, 185, 189, 193, 195, 197, 198, 201,
+ 203, 205, 206
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yytype_int8 yyrhs[] =
+{
+ 53, 0, -1, 54, 48, 66, 77, -1, -1, 54,
+ 55, -1, 56, -1, 49, -1, 17, -1, 19, 76,
+ -1, 19, 76, 76, -1, 20, -1, 21, -1, 22,
+ 4, -1, 23, 4, -1, 24, 43, 76, -1, 25,
+ -1, 26, -1, 27, -1, 28, -1, 29, 43, 76,
+ -1, 31, -1, 32, -1, 33, 43, 76, -1, 34,
+ -1, 35, -1, 36, 76, -1, 37, 76, -1, 39,
+ -1, 40, -1, 41, -1, 44, -1, 60, -1, 57,
+ -1, 38, 72, -1, 10, -1, 8, 63, -1, 9,
+ 63, -1, 18, -1, 30, -1, -1, 6, 58, 65,
+ -1, -1, 5, 59, 65, -1, 7, 42, 63, -1,
+ 61, 62, 63, -1, 11, -1, 12, -1, 13, -1,
+ -1, 42, -1, 72, -1, 63, 72, -1, 42, -1,
+ 46, -1, 46, 4, -1, 46, 75, -1, 46, 4,
+ 75, -1, 64, -1, 65, 64, -1, 67, -1, 66,
+ 67, -1, 68, -1, 56, 44, -1, 1, 44, -1,
+ -1, 47, 69, 70, -1, 71, -1, 70, 45, 71,
+ -1, 70, 44, -1, -1, 71, 72, -1, 71, 73,
+ -1, 71, 14, 72, -1, 71, 15, 4, -1, 71,
+ 16, 42, -1, 46, -1, 75, -1, -1, 74, 51,
+ -1, 3, -1, 3, -1, -1, 48, 50, -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const yytype_uint16 yyrline[] =
+{
+ 0, 202, 202, 210, 212, 216, 217, 218, 219, 224,
+ 225, 226, 227, 228, 229, 230, 235, 239, 240, 241,
+ 242, 243, 244, 245, 246, 247, 248, 249, 250, 251,
+ 252, 256, 257, 258, 262, 278, 285, 292, 296, 303,
+ 303, 308, 308, 313, 323, 338, 339, 340, 344, 345,
+ 351, 352, 357, 361, 366, 372, 378, 389, 390, 399,
+ 400, 406, 407, 408, 415, 415, 419, 420, 421, 426,
+ 427, 429, 430, 432, 434, 439, 440, 456, 456, 462,
+ 471, 476, 478
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ "\"end of file\"", "error", "$undefined", "\"string\"", "\"integer\"",
+ "\"%token\"", "\"%nterm\"", "\"%type\"", "\"%destructor {...}\"",
+ "\"%printer {...}\"", "\"%union {...}\"", "\"%left\"", "\"%right\"",
+ "\"%nonassoc\"", "\"%prec\"", "\"%dprec\"", "\"%merge\"", "\"%debug\"",
+ "\"%default-prec\"", "\"%define\"", "\"%defines\"", "\"%error-verbose\"",
+ "\"%expect\"", "\"%expect-rr\"", "\"%file-prefix\"", "\"%glr-parser\"",
+ "\"%initial-action {...}\"", "\"%lex-param {...}\"", "\"%locations\"",
+ "\"%name-prefix\"", "\"%no-default-prec\"", "\"%no-lines\"",
+ "\"%nondeterministic-parser\"", "\"%output\"", "\"%parse-param {...}\"",
+ "\"%pure-parser\"", "\"%require\"", "\"%skeleton\"", "\"%start\"",
+ "\"%token-table\"", "\"%verbose\"", "\"%yacc\"", "\"type\"", "\"=\"",
+ "\";\"", "\"|\"", "\"identifier\"", "\"identifier:\"", "\"%%\"",
+ "\"%{...%}\"", "\"epilogue\"", "\"{...}\"", "$accept", "input",
+ "declarations", "declaration", "grammar_declaration",
+ "symbol_declaration", "@1", "@2", "precedence_declaration",
+ "precedence_declarator", "type.opt", "symbols.1", "symbol_def",
+ "symbol_defs.1", "grammar", "rules_or_grammar_declaration", "rules",
+ "@3", "rhses.1", "rhs", "symbol", "action", "@4", "string_as_id",
+ "string_content", "epilogue.opt", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+ token YYLEX-NUM. */
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
+ 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
+ 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
+ 285, 286, 287, 288, 289, 290, 291, 292, 293, 294,
+ 295, 296, 297, 298, 299, 300, 301, 302, 303, 304,
+ 305, 306
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const yytype_uint8 yyr1[] =
+{
+ 0, 52, 53, 54, 54, 55, 55, 55, 55, 55,
+ 55, 55, 55, 55, 55, 55, 55, 55, 55, 55,
+ 55, 55, 55, 55, 55, 55, 55, 55, 55, 55,
+ 55, 56, 56, 56, 56, 56, 56, 56, 56, 58,
+ 57, 59, 57, 57, 60, 61, 61, 61, 62, 62,
+ 63, 63, 64, 64, 64, 64, 64, 65, 65, 66,
+ 66, 67, 67, 67, 69, 68, 70, 70, 70, 71,
+ 71, 71, 71, 71, 71, 72, 72, 74, 73, 75,
+ 76, 77, 77
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 4, 0, 2, 1, 1, 1, 2, 3,
+ 1, 1, 2, 2, 3, 1, 1, 1, 1, 3,
+ 1, 1, 3, 1, 1, 2, 2, 1, 1, 1,
+ 1, 1, 1, 2, 1, 2, 2, 1, 1, 0,
+ 3, 0, 3, 3, 3, 1, 1, 1, 0, 1,
+ 1, 2, 1, 1, 2, 2, 3, 1, 2, 1,
+ 2, 1, 2, 2, 0, 3, 1, 3, 2, 0,
+ 2, 2, 3, 3, 3, 1, 1, 0, 2, 1,
+ 1, 0, 2
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+ STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+ means the default is an error. */
+static const yytype_uint8 yydefact[] =
+{
+ 3, 0, 0, 1, 41, 39, 0, 0, 0, 34,
+ 45, 46, 47, 7, 37, 0, 10, 11, 0, 0,
+ 0, 15, 16, 17, 18, 0, 38, 20, 21, 0,
+ 23, 24, 0, 0, 0, 27, 28, 29, 30, 0,
+ 6, 4, 5, 32, 31, 48, 0, 0, 0, 79,
+ 75, 35, 50, 76, 36, 80, 8, 12, 13, 0,
+ 0, 0, 25, 26, 33, 0, 64, 0, 0, 59,
+ 61, 49, 0, 52, 53, 57, 42, 40, 43, 51,
+ 9, 14, 19, 22, 63, 69, 62, 0, 60, 2,
+ 44, 54, 55, 58, 65, 66, 82, 56, 68, 69,
+ 0, 0, 0, 70, 71, 0, 67, 72, 73, 74,
+ 78
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yytype_int8 yydefgoto[] =
+{
+ -1, 1, 2, 41, 67, 43, 47, 46, 44, 45,
+ 72, 51, 75, 76, 68, 69, 70, 85, 94, 95,
+ 52, 104, 105, 53, 56, 89
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF -69
+static const yytype_int8 yypact[] =
+{
+ -69, 5, 112, -69, -69, -69, -35, 0, 0, -69,
+ -69, -69, -69, -69, -69, 13, -69, -69, 20, 31,
+ -18, -69, -69, -69, -69, -6, -69, -69, -69, -5,
+ -69, -69, 13, 13, 0, -69, -69, -69, -69, 69,
+ -69, -69, -69, -69, -69, -2, -38, -38, 0, -69,
+ -69, 0, -69, -69, 0, -69, 13, -69, -69, 13,
+ 13, 13, -69, -69, -69, -8, -69, 3, 21, -69,
+ -69, -69, 0, -69, 6, -69, -38, -38, 0, -69,
+ -69, -69, -69, -69, -69, -69, -69, 2, -69, -69,
+ 0, 39, -69, -69, -33, -1, -69, -69, -69, -69,
+ 0, 44, 1, -69, -69, 4, -1, -69, -69, -69,
+ -69
+};
+
+/* YYPGOTO[NTERM-NUM]. */
+static const yytype_int8 yypgoto[] =
+{
+ -69, -69, -69, -69, 47, -69, -69, -69, -69, -69,
+ -69, -7, -58, 7, -69, -15, -69, -69, -69, -42,
+ -34, -69, -69, -68, 30, -69
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says.
+ If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF -82
+static const yytype_int8 yytable[] =
+{
+ 64, 54, 49, 49, 73, 3, 92, 48, 74, 49,
+ 91, 98, 99, 100, 101, 102, 55, 79, 93, 93,
+ 79, -81, 65, 97, 57, 59, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 58, 84, 60, 61, 14,
+ 71, 78, 49, 109, 79, 50, 50, 86, 108, 42,
+ -77, 26, 96, 88, 77, 110, 79, 106, 0, 34,
+ 0, 103, 62, 63, 0, 90, 107, 0, 66, 87,
+ 65, 0, 103, 0, 4, 5, 6, 7, 8, 9,
+ 10, 11, 12, 0, 0, 0, 80, 14, 0, 81,
+ 82, 83, 0, 0, 0, 0, 0, 0, 0, 26,
+ 0, 0, 0, 0, 0, 0, 0, 34, 0, 0,
+ 0, 0, 0, 0, 0, 0, 66, 4, 5, 6,
+ 7, 8, 9, 10, 11, 12, 0, 0, 0, 13,
+ 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 0, 0, 38, 0, 0, 0,
+ 39, 40
+};
+
+static const yytype_int8 yycheck[] =
+{
+ 34, 8, 3, 3, 42, 0, 74, 42, 46, 3,
+ 4, 44, 45, 14, 15, 16, 3, 51, 76, 77,
+ 54, 0, 1, 91, 4, 43, 5, 6, 7, 8,
+ 9, 10, 11, 12, 13, 4, 44, 43, 43, 18,
+ 42, 48, 3, 42, 78, 46, 46, 44, 4, 2,
+ 51, 30, 50, 68, 47, 51, 90, 99, -1, 38,
+ -1, 95, 32, 33, -1, 72, 100, -1, 47, 48,
+ 1, -1, 106, -1, 5, 6, 7, 8, 9, 10,
+ 11, 12, 13, -1, -1, -1, 56, 18, -1, 59,
+ 60, 61, -1, -1, -1, -1, -1, -1, -1, 30,
+ -1, -1, -1, -1, -1, -1, -1, 38, -1, -1,
+ -1, -1, -1, -1, -1, -1, 47, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, -1, -1, -1, 17,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, -1, -1, 44, -1, -1, -1,
+ 48, 49
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const yytype_uint8 yystos[] =
+{
+ 0, 53, 54, 0, 5, 6, 7, 8, 9, 10,
+ 11, 12, 13, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 40, 41, 44, 48,
+ 49, 55, 56, 57, 60, 61, 59, 58, 42, 3,
+ 46, 63, 72, 75, 63, 3, 76, 4, 4, 43,
+ 43, 43, 76, 76, 72, 1, 47, 56, 66, 67,
+ 68, 42, 62, 42, 46, 64, 65, 65, 63, 72,
+ 76, 76, 76, 76, 44, 69, 44, 48, 67, 77,
+ 63, 4, 75, 64, 70, 71, 50, 75, 44, 45,
+ 14, 15, 16, 72, 73, 74, 71, 72, 4, 42,
+ 51
+};
+
+#define yyerrok (yyerrstatus = 0)
+#define yyclearin (yychar = YYEMPTY)
+#define YYEMPTY (-2)
+#define YYEOF 0
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror. This remains here temporarily
+ to ease the transition to the new meaning of YYERROR, for GCC.
+ Once GCC version 2 has supplanted version 1, this can go. */
+
+#define YYFAIL goto yyerrlab
+
+#define YYRECOVERING() (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value) \
+do \
+ if (yychar == YYEMPTY && yylen == 1) \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ yytoken = YYTRANSLATE (yychar); \
+ YYPOPSTACK (1); \
+ goto yybackup; \
+ } \
+ else \
+ { \
+ yyerror (YY_("syntax error: cannot back up")); \
+ YYERROR; \
+ } \
+while (YYID (0))
+
+
+#define YYTERROR 1
+#define YYERRCODE 256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
+
+#ifndef YY_LOCATION_PRINT
+# if YYLTYPE_IS_TRIVIAL
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments. */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM)
+#else
+# define YYLEX yylex (&yylval, &yylloc)
+#endif
+
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value, Location); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ YYLTYPE const * const yylocationp;
+#endif
+{
+ if (!yyvaluep)
+ return;
+ YYUSE (yylocationp);
+# ifdef YYPRINT
+ if (yytype < YYNTOKENS)
+ YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+ YYUSE (yyoutput);
+# endif
+ switch (yytype)
+ {
+ case 3: /* "\"string\"" */
+#line 179 "parse-gram.y"
+ { fprintf (stderr, "\"%s\"", (yyvaluep->chars)); };
+#line 979 "parse-gram.c"
+ break;
+ case 4: /* "\"integer\"" */
+#line 192 "parse-gram.y"
+ { fprintf (stderr, "%d", (yyvaluep->integer)); };
+#line 984 "parse-gram.c"
+ break;
+ case 8: /* "\"%destructor {...}\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 989 "parse-gram.c"
+ break;
+ case 9: /* "\"%printer {...}\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 994 "parse-gram.c"
+ break;
+ case 10: /* "\"%union {...}\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 999 "parse-gram.c"
+ break;
+ case 26: /* "\"%initial-action {...}\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 1004 "parse-gram.c"
+ break;
+ case 27: /* "\"%lex-param {...}\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 1009 "parse-gram.c"
+ break;
+ case 34: /* "\"%parse-param {...}\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 1014 "parse-gram.c"
+ break;
+ case 42: /* "\"type\"" */
+#line 190 "parse-gram.y"
+ { fprintf (stderr, "<%s>", (yyvaluep->uniqstr)); };
+#line 1019 "parse-gram.c"
+ break;
+ case 46: /* "\"identifier\"" */
+#line 194 "parse-gram.y"
+ { fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
+#line 1024 "parse-gram.c"
+ break;
+ case 47: /* "\"identifier:\"" */
+#line 196 "parse-gram.y"
+ { fprintf (stderr, "%s:", (yyvaluep->symbol)->tag); };
+#line 1029 "parse-gram.c"
+ break;
+ case 49: /* "\"%{...%}\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 1034 "parse-gram.c"
+ break;
+ case 50: /* "\"epilogue\"" */
+#line 181 "parse-gram.y"
+ { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+#line 1039 "parse-gram.c"
+ break;
+ case 72: /* "symbol" */
+#line 194 "parse-gram.y"
+ { fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
+#line 1044 "parse-gram.c"
+ break;
+ case 75: /* "string_as_id" */
+#line 194 "parse-gram.y"
+ { fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
+#line 1049 "parse-gram.c"
+ break;
+ case 76: /* "string_content" */
+#line 179 "parse-gram.y"
+ { fprintf (stderr, "\"%s\"", (yyvaluep->chars)); };
+#line 1054 "parse-gram.c"
+ break;
+ default:
+ break;
+ }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ YYLTYPE const * const yylocationp;
+#endif
+{
+ if (yytype < YYNTOKENS)
+ YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+ else
+ YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+ YY_LOCATION_PRINT (yyoutput, *yylocationp);
+ YYFPRINTF (yyoutput, ": ");
+ yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp);
+ YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
+#else
+static void
+yy_stack_print (bottom, top)
+ yytype_int16 *bottom;
+ yytype_int16 *top;
+#endif
+{
+ YYFPRINTF (stderr, "Stack now");
+ for (; bottom <= top; ++bottom)
+ YYFPRINTF (stderr, " %d", *bottom);
+ YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, YYLTYPE *yylsp, int yyrule)
+#else
+static void
+yy_reduce_print (yyvsp, yylsp, yyrule)
+ YYSTYPE *yyvsp;
+ YYLTYPE *yylsp;
+ int yyrule;
+#endif
+{
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ fprintf (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &(yyvsp[(yyi + 1) - (yynrhs)])
+ , &(yylsp[(yyi + 1) - (yynrhs)]) );
+ fprintf (stderr, "\n");
+ }
+}
+
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug) \
+ yy_reduce_print (yyvsp, yylsp, Rule); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
+
+ Do not make this value too large; the results are undefined if
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+ evaluated with infinite-precision integer arithmetic. */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+# if defined __GLIBC__ && defined _STRING_H
+# define yystrlen strlen
+# else
+/* Return the length of YYSTR. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+ const char *yystr;
+#endif
+{
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
+ continue;
+ return yylen;
+}
+# endif
+# endif
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+ char *yydest;
+ const char *yysrc;
+#endif
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+ YYCHAR while in state YYSTATE. Return the number of bytes copied,
+ including the terminating null byte. If YYRESULT is null, do not
+ copy anything; just return the number of bytes that would be
+ copied. As a special case, return 0 if an ordinary "syntax error"
+ message will do. Return YYSIZE_MAXIMUM if overflow occurs during
+ size calculation. */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+ int yyn = yypact[yystate];
+
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 0;
+ else
+ {
+ int yytype = YYTRANSLATE (yychar);
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ int yysize_overflow = 0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+
+# if 0
+ /* This is so xgettext sees the translatable formats that are
+ constructed on the fly. */
+ YY_("syntax error, unexpected %s");
+ YY_("syntax error, unexpected %s, expecting %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ static char const yyexpecting[] = ", expecting %s";
+ static char const yyor[] = " or %s";
+ char yyformat[sizeof yyunexpected
+ + sizeof yyexpecting - 1
+ + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+ * (sizeof yyor - 1))];
+ char const *yyprefix = yyexpecting;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytname[yytype];
+ yyfmt = yystpcpy (yyformat, yyunexpected);
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ yyformat[sizeof yyunexpected - 1] = '\0';
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+ yyfmt = yystpcpy (yyfmt, yyprefix);
+ yyprefix = yyor;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + yystrlen (yyf);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+
+ if (yysize_overflow)
+ return YYSIZE_MAXIMUM;
+
+ if (yyresult)
+ {
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ char *yyp = yyresult;
+ int yyi = 0;
+ while ((*yyp = *yyf) != '\0')
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
+ }
+ return yysize;
+ }
+}
+#endif /* YYERROR_VERBOSE */
+
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol. |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep, yylocationp)
+ const char *yymsg;
+ int yytype;
+ YYSTYPE *yyvaluep;
+ YYLTYPE *yylocationp;
+#endif
+{
+ YYUSE (yyvaluep);
+ YYUSE (yylocationp);
+
+ if (!yymsg)
+ yymsg = "Deleting";
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+
+ default:
+ break;
+ }
+}
+
+
+/* Prevent warnings from -Wmissing-prototypes. */
+
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+
+
+
+/*----------.
+| yyparse. |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+ void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void)
+#else
+int
+yyparse ()
+
+#endif
+#endif
+{
+ /* The look-ahead symbol. */
+int yychar;
+
+/* The semantic value of the look-ahead symbol. */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far. */
+int yynerrs;
+/* Location data for the look-ahead symbol. */
+YYLTYPE yylloc;
+
+ int yystate;
+ int yyn;
+ int yyresult;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+ /* Look-ahead token as an internal (translated) token number. */
+ int yytoken = 0;
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+ /* Three stacks and their tools:
+ `yyss': related to states,
+ `yyvs': related to semantic values,
+ `yyls': related to locations.
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss = yyssa;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs = yyvsa;
+ YYSTYPE *yyvsp;
+
+ /* The location stack. */
+ YYLTYPE yylsa[YYINITDEPTH];
+ YYLTYPE *yyls = yylsa;
+ YYLTYPE *yylsp;
+ /* The locations where the error started and ended. */
+ YYLTYPE yyerror_range[2];
+
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+
+ YYSIZE_T yystacksize = YYINITDEPTH;
+
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+ YYLTYPE yyloc;
+
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yystate = 0;
+ yyerrstatus = 0;
+ yynerrs = 0;
+ yychar = YYEMPTY; /* Cause a token to be read. */
+
+ /* Initialize stack pointers.
+ Waste one element of value and location stack
+ so that they stay on the same level as the state stack.
+ The wasted elements are never initialized. */
+
+ yyssp = yyss;
+ yyvsp = yyvs;
+ yylsp = yyls;
+#if YYLTYPE_IS_TRIVIAL
+ /* Initialize the default location before parsing starts. */
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = 0;
+#endif
+
+
+ /* User initialization code. */
+#line 84 "parse-gram.y"
+{
+ /* Bison's grammar can initial empty locations, hence a default
+ location is needed. */
+ yylloc.start.file = yylloc.end.file = current_file;
+ yylloc.start.line = yylloc.end.line = 1;
+ yylloc.start.column = yylloc.end.column = 0;
+}
+/* Line 1078 of yacc.c. */
+#line 1573 "parse-gram.c"
+ yylsp[0] = yylloc;
+ goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate. |
+`------------------------------------------------------------*/
+ yynewstate:
+ /* In all cases, when you get here, the value and location stacks
+ have just been pushed. So pushing a state here evens the stacks. */
+ yyssp++;
+
+ yysetstate:
+ *yyssp = yystate;
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ {
+ /* Get the current used size of the three stacks, in elements. */
+ YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+ {
+ /* Give user a chance to reallocate the stack. Use copies of
+ these so that the &'s don't force the real ones into
+ memory. */
+ YYSTYPE *yyvs1 = yyvs;
+ yytype_int16 *yyss1 = yyss;
+ YYLTYPE *yyls1 = yyls;
+
+ /* Each stack pointer address is followed by the size of the
+ data in use in that stack, in bytes. This used to be a
+ conditional around just the two extra args, but that might
+ be undefined if yyoverflow is a macro. */
+ yyoverflow (YY_("memory exhausted"),
+ &yyss1, yysize * sizeof (*yyssp),
+ &yyvs1, yysize * sizeof (*yyvsp),
+ &yyls1, yysize * sizeof (*yylsp),
+ &yystacksize);
+ yyls = yyls1;
+ yyss = yyss1;
+ yyvs = yyvs1;
+ }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+ goto yyexhaustedlab;
+# else
+ /* Extend the stack our own way. */
+ if (YYMAXDEPTH <= yystacksize)
+ goto yyexhaustedlab;
+ yystacksize *= 2;
+ if (YYMAXDEPTH < yystacksize)
+ yystacksize = YYMAXDEPTH;
+
+ {
+ yytype_int16 *yyss1 = yyss;
+ union yyalloc *yyptr =
+ (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+ if (! yyptr)
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss);
+ YYSTACK_RELOCATE (yyvs);
+ YYSTACK_RELOCATE (yyls);
+# undef YYSTACK_RELOCATE
+ if (yyss1 != yyssa)
+ YYSTACK_FREE (yyss1);
+ }
+# endif
+#endif /* no yyoverflow */
+
+ yyssp = yyss + yysize - 1;
+ yyvsp = yyvs + yysize - 1;
+ yylsp = yyls + yysize - 1;
+
+ YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+ (unsigned long int) yystacksize));
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ YYABORT;
+ }
+
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+ goto yybackup;
+
+/*-----------.
+| yybackup. |
+`-----------*/
+yybackup:
+
+ /* Do appropriate processing given the current state. Read a
+ look-ahead token if we need one and don't already have one. */
+
+ /* First try to decide what to do without reference to look-ahead token. */
+ yyn = yypact[yystate];
+ if (yyn == YYPACT_NINF)
+ goto yydefault;
+
+ /* Not known => get a look-ahead token if don't already have one. */
+
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ }
+
+ if (yychar <= YYEOF)
+ {
+ yychar = yytoken = YYEOF;
+ YYDPRINTF ((stderr, "Now at end of input.\n"));
+ }
+ else
+ {
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+ goto yydefault;
+ yyn = yytable[yyn];
+ if (yyn <= 0)
+ {
+ if (yyn == 0 || yyn == YYTABLE_NINF)
+ goto yyerrlab;
+ yyn = -yyn;
+ goto yyreduce;
+ }
+
+ if (yyn == YYFINAL)
+ YYACCEPT;
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus)
+ yyerrstatus--;
+
+ /* Shift the look-ahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the shifted token unless it is eof. */
+ if (yychar != YYEOF)
+ yychar = YYEMPTY;
+
+ yystate = yyn;
+ *++yyvsp = yylval;
+ *++yylsp = yylloc;
+ goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state. |
+`-----------------------------------------------------------*/
+yydefault:
+ yyn = yydefact[yystate];
+ if (yyn == 0)
+ goto yyerrlab;
+ goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction. |
+`-----------------------------*/
+yyreduce:
+ /* yyn is the number of a rule to reduce with. */
+ yylen = yyr2[yyn];
+
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. Assigning to YYVAL
+ unconditionally makes the parser a bit smaller, and it avoids a
+ GCC warning that YYVAL may be used uninitialized. */
+ yyval = yyvsp[1-yylen];
+
+ /* Default location. */
+ YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ case 6:
+#line 217 "parse-gram.y"
+ { prologue_augment ((yyvsp[(1) - (1)].chars), (yylsp[(1) - (1)])); }
+ break;
+
+ case 7:
+#line 218 "parse-gram.y"
+ { debug_flag = true; }
+ break;
+
+ case 8:
+#line 220 "parse-gram.y"
+ {
+ static char one[] = "1";
+ muscle_insert ((yyvsp[(2) - (2)].chars), one);
+ }
+ break;
+
+ case 9:
+#line 224 "parse-gram.y"
+ { muscle_insert ((yyvsp[(2) - (3)].chars), (yyvsp[(3) - (3)].chars)); }
+ break;
+
+ case 10:
+#line 225 "parse-gram.y"
+ { defines_flag = true; }
+ break;
+
+ case 11:
+#line 226 "parse-gram.y"
+ { error_verbose = true; }
+ break;
+
+ case 12:
+#line 227 "parse-gram.y"
+ { expected_sr_conflicts = (yyvsp[(2) - (2)].integer); }
+ break;
+
+ case 13:
+#line 228 "parse-gram.y"
+ { expected_rr_conflicts = (yyvsp[(2) - (2)].integer); }
+ break;
+
+ case 14:
+#line 229 "parse-gram.y"
+ { spec_file_prefix = (yyvsp[(3) - (3)].chars); }
+ break;
+
+ case 15:
+#line 231 "parse-gram.y"
+ {
+ nondeterministic_parser = true;
+ glr_parser = true;
+ }
+ break;
+
+ case 16:
+#line 236 "parse-gram.y"
+ {
+ muscle_code_grow ("initial_action", (yyvsp[(1) - (1)].chars), (yylsp[(1) - (1)]));
+ }
+ break;
+
+ case 17:
+#line 239 "parse-gram.y"
+ { add_param ("lex_param", (yyvsp[(1) - (1)].chars), (yylsp[(1) - (1)])); }
+ break;
+
+ case 18:
+#line 240 "parse-gram.y"
+ { locations_flag = true; }
+ break;
+
+ case 19:
+#line 241 "parse-gram.y"
+ { spec_name_prefix = (yyvsp[(3) - (3)].chars); }
+ break;
+
+ case 20:
+#line 242 "parse-gram.y"
+ { no_lines_flag = true; }
+ break;
+
+ case 21:
+#line 243 "parse-gram.y"
+ { nondeterministic_parser = true; }
+ break;
+
+ case 22:
+#line 244 "parse-gram.y"
+ { spec_outfile = (yyvsp[(3) - (3)].chars); }
+ break;
+
+ case 23:
+#line 245 "parse-gram.y"
+ { add_param ("parse_param", (yyvsp[(1) - (1)].chars), (yylsp[(1) - (1)])); }
+ break;
+
+ case 24:
+#line 246 "parse-gram.y"
+ { pure_parser = true; }
+ break;
+
+ case 25:
+#line 247 "parse-gram.y"
+ { version_check (&(yylsp[(2) - (2)]), (yyvsp[(2) - (2)].chars)); }
+ break;
+
+ case 26:
+#line 248 "parse-gram.y"
+ { skeleton = (yyvsp[(2) - (2)].chars); }
+ break;
+
+ case 27:
+#line 249 "parse-gram.y"
+ { token_table_flag = true; }
+ break;
+
+ case 28:
+#line 250 "parse-gram.y"
+ { report_flag = report_states; }
+ break;
+
+ case 29:
+#line 251 "parse-gram.y"
+ { yacc_flag = true; }
+ break;
+
+ case 33:
+#line 259 "parse-gram.y"
+ {
+ grammar_start_symbol_set ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)]));
+ }
+ break;
+
+ case 34:
+#line 263 "parse-gram.y"
+ {
+ char const *body = (yyvsp[(1) - (1)].chars);
+
+ if (typed)
+ {
+ /* Concatenate the union bodies, turning the first one's
+ trailing '}' into '\n', and omitting the second one's '{'. */
+ char *code = muscle_find ("stype");
+ code[strlen (code) - 1] = '\n';
+ body++;
+ }
+
+ typed = true;
+ muscle_code_grow ("stype", body, (yylsp[(1) - (1)]));
+ }
+ break;
+
+ case 35:
+#line 279 "parse-gram.y"
+ {
+ symbol_list *list;
+ for (list = (yyvsp[(2) - (2)].list); list; list = list->next)
+ symbol_destructor_set (list->sym, (yyvsp[(1) - (2)].chars), (yylsp[(1) - (2)]));
+ symbol_list_free ((yyvsp[(2) - (2)].list));
+ }
+ break;
+
+ case 36:
+#line 286 "parse-gram.y"
+ {
+ symbol_list *list;
+ for (list = (yyvsp[(2) - (2)].list); list; list = list->next)
+ symbol_printer_set (list->sym, (yyvsp[(1) - (2)].chars), (yylsp[(1) - (2)]));
+ symbol_list_free ((yyvsp[(2) - (2)].list));
+ }
+ break;
+
+ case 37:
+#line 293 "parse-gram.y"
+ {
+ default_prec = true;
+ }
+ break;
+
+ case 38:
+#line 297 "parse-gram.y"
+ {
+ default_prec = false;
+ }
+ break;
+
+ case 39:
+#line 303 "parse-gram.y"
+ { current_class = nterm_sym; }
+ break;
+
+ case 40:
+#line 304 "parse-gram.y"
+ {
+ current_class = unknown_sym;
+ current_type = NULL;
+ }
+ break;
+
+ case 41:
+#line 308 "parse-gram.y"
+ { current_class = token_sym; }
+ break;
+
+ case 42:
+#line 309 "parse-gram.y"
+ {
+ current_class = unknown_sym;
+ current_type = NULL;
+ }
+ break;
+
+ case 43:
+#line 314 "parse-gram.y"
+ {
+ symbol_list *list;
+ for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
+ symbol_type_set (list->sym, (yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]));
+ symbol_list_free ((yyvsp[(3) - (3)].list));
+ }
+ break;
+
+ case 44:
+#line 324 "parse-gram.y"
+ {
+ symbol_list *list;
+ ++current_prec;
+ for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
+ {
+ symbol_type_set (list->sym, current_type, (yylsp[(2) - (3)]));
+ symbol_precedence_set (list->sym, current_prec, (yyvsp[(1) - (3)].assoc), (yylsp[(1) - (3)]));
+ }
+ symbol_list_free ((yyvsp[(3) - (3)].list));
+ current_type = NULL;
+ }
+ break;
+
+ case 45:
+#line 338 "parse-gram.y"
+ { (yyval.assoc) = left_assoc; }
+ break;
+
+ case 46:
+#line 339 "parse-gram.y"
+ { (yyval.assoc) = right_assoc; }
+ break;
+
+ case 47:
+#line 340 "parse-gram.y"
+ { (yyval.assoc) = non_assoc; }
+ break;
+
+ case 48:
+#line 344 "parse-gram.y"
+ { current_type = NULL; }
+ break;
+
+ case 49:
+#line 345 "parse-gram.y"
+ { current_type = (yyvsp[(1) - (1)].uniqstr); }
+ break;
+
+ case 50:
+#line 351 "parse-gram.y"
+ { (yyval.list) = symbol_list_new ((yyvsp[(1) - (1)].symbol), (yylsp[(1) - (1)])); }
+ break;
+
+ case 51:
+#line 352 "parse-gram.y"
+ { (yyval.list) = symbol_list_prepend ((yyvsp[(1) - (2)].list), (yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)])); }
+ break;
+
+ case 52:
+#line 358 "parse-gram.y"
+ {
+ current_type = (yyvsp[(1) - (1)].uniqstr);
+ }
+ break;
+
+ case 53:
+#line 362 "parse-gram.y"
+ {
+ symbol_class_set ((yyvsp[(1) - (1)].symbol), current_class, (yylsp[(1) - (1)]), true);
+ symbol_type_set ((yyvsp[(1) - (1)].symbol), current_type, (yylsp[(1) - (1)]));
+ }
+ break;
+
+ case 54:
+#line 367 "parse-gram.y"
+ {
+ symbol_class_set ((yyvsp[(1) - (2)].symbol), current_class, (yylsp[(1) - (2)]), true);
+ symbol_type_set ((yyvsp[(1) - (2)].symbol), current_type, (yylsp[(1) - (2)]));
+ symbol_user_token_number_set ((yyvsp[(1) - (2)].symbol), (yyvsp[(2) - (2)].integer), (yylsp[(2) - (2)]));
+ }
+ break;
+
+ case 55:
+#line 373 "parse-gram.y"
+ {
+ symbol_class_set ((yyvsp[(1) - (2)].symbol), current_class, (yylsp[(1) - (2)]), true);
+ symbol_type_set ((yyvsp[(1) - (2)].symbol), current_type, (yylsp[(1) - (2)]));
+ symbol_make_alias ((yyvsp[(1) - (2)].symbol), (yyvsp[(2) - (2)].symbol), (yyloc));
+ }
+ break;
+
+ case 56:
+#line 379 "parse-gram.y"
+ {
+ symbol_class_set ((yyvsp[(1) - (3)].symbol), current_class, (yylsp[(1) - (3)]), true);
+ symbol_type_set ((yyvsp[(1) - (3)].symbol), current_type, (yylsp[(1) - (3)]));
+ symbol_user_token_number_set ((yyvsp[(1) - (3)].symbol), (yyvsp[(2) - (3)].integer), (yylsp[(2) - (3)]));
+ symbol_make_alias ((yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol), (yyloc));
+ }
+ break;
+
+ case 63:
+#line 409 "parse-gram.y"
+ {
+ yyerrok;
+ }
+ break;
+
+ case 64:
+#line 415 "parse-gram.y"
+ { current_lhs = (yyvsp[(1) - (1)].symbol); current_lhs_location = (yylsp[(1) - (1)]); }
+ break;
+
+ case 66:
+#line 419 "parse-gram.y"
+ { grammar_current_rule_end ((yylsp[(1) - (1)])); }
+ break;
+
+ case 67:
+#line 420 "parse-gram.y"
+ { grammar_current_rule_end ((yylsp[(3) - (3)])); }
+ break;
+
+ case 69:
+#line 426 "parse-gram.y"
+ { grammar_current_rule_begin (current_lhs, current_lhs_location); }
+ break;
+
+ case 70:
+#line 428 "parse-gram.y"
+ { grammar_current_rule_symbol_append ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)])); }
+ break;
+
+ case 72:
+#line 431 "parse-gram.y"
+ { grammar_current_rule_prec_set ((yyvsp[(3) - (3)].symbol), (yylsp[(3) - (3)])); }
+ break;
+
+ case 73:
+#line 433 "parse-gram.y"
+ { grammar_current_rule_dprec_set ((yyvsp[(3) - (3)].integer), (yylsp[(3) - (3)])); }
+ break;
+
+ case 74:
+#line 435 "parse-gram.y"
+ { grammar_current_rule_merge_set ((yyvsp[(3) - (3)].uniqstr), (yylsp[(3) - (3)])); }
+ break;
+
+ case 75:
+#line 439 "parse-gram.y"
+ { (yyval.symbol) = (yyvsp[(1) - (1)].symbol); }
+ break;
+
+ case 76:
+#line 440 "parse-gram.y"
+ { (yyval.symbol) = (yyvsp[(1) - (1)].symbol); }
+ break;
+
+ case 77:
+#line 456 "parse-gram.y"
+ { grammar_current_rule_action_append (last_string, last_braced_code_loc); }
+ break;
+
+ case 79:
+#line 463 "parse-gram.y"
+ {
+ (yyval.symbol) = symbol_get (quotearg_style (c_quoting_style, (yyvsp[(1) - (1)].chars)), (yylsp[(1) - (1)]));
+ symbol_class_set ((yyval.symbol), token_sym, (yylsp[(1) - (1)]), false);
+ }
+ break;
+
+ case 80:
+#line 472 "parse-gram.y"
+ { (yyval.chars) = (yyvsp[(1) - (1)].chars); }
+ break;
+
+ case 82:
+#line 479 "parse-gram.y"
+ {
+ muscle_code_grow ("epilogue", (yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)]));
+ scanner_last_string_free ();
+ }
+ break;
+
+
+/* Line 1267 of yacc.c. */
+#line 2159 "parse-gram.c"
+ default: break;
+ }
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+
+ *++yyvsp = yyval;
+ *++yylsp = yyloc;
+
+ /* Now `shift' the result of the reduction. Determine what state
+ that goes to, based on the state we popped back to and the rule
+ number reduced by. */
+
+ yyn = yyr1[yyn];
+
+ yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+ if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+ yystate = yytable[yystate];
+ else
+ yystate = yydefgoto[yyn - YYNTOKENS];
+
+ goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus)
+ {
+ ++yynerrs;
+#if ! YYERROR_VERBOSE
+ yyerror (YY_("syntax error"));
+#else
+ {
+ YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+ if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+ {
+ YYSIZE_T yyalloc = 2 * yysize;
+ if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+ yyalloc = YYSTACK_ALLOC_MAXIMUM;
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+ if (yymsg)
+ yymsg_alloc = yyalloc;
+ else
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ }
+
+ if (0 < yysize && yysize <= yymsg_alloc)
+ {
+ (void) yysyntax_error (yymsg, yystate, yychar);
+ yyerror (yymsg);
+ }
+ else
+ {
+ yyerror (YY_("syntax error"));
+ if (yysize != 0)
+ goto yyexhaustedlab;
+ }
+ }
+#endif
+ }
+
+ yyerror_range[0] = yylloc;
+
+ if (yyerrstatus == 3)
+ {
+ /* If just tried and failed to reuse look-ahead token after an
+ error, discard it. */
+
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval, &yylloc);
+ yychar = YYEMPTY;
+ }
+ }
+
+ /* Else will try to reuse look-ahead token after shifting the error
+ token. */
+ goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
+
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
+ goto yyerrorlab;
+
+ yyerror_range[0] = yylsp[1-yylen];
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+ yystate = *yyssp;
+ goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
+ yyerrstatus = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact[yystate];
+ if (yyn != YYPACT_NINF)
+ {
+ yyn += YYTERROR;
+ if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+ {
+ yyn = yytable[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yyssp == yyss)
+ YYABORT;
+
+ yyerror_range[0] = *yylsp;
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp, yylsp);
+ YYPOPSTACK (1);
+ yystate = *yyssp;
+ YY_STACK_PRINT (yyss, yyssp);
+ }
+
+ if (yyn == YYFINAL)
+ YYACCEPT;
+
+ *++yyvsp = yylval;
+
+ yyerror_range[1] = yylloc;
+ /* Using YYLLOC is tempting, but would change the location of
+ the look-ahead. YYLOC is available though. */
+ YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+ *++yylsp = yyloc;
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+ yystate = yyn;
+ goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here. |
+`-------------------------------------*/
+yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here. |
+`-----------------------------------*/
+yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+#ifndef yyoverflow
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (YY_("memory exhausted"));
+ yyresult = 2;
+ /* Fall through. */
+#endif
+
+yyreturn:
+ if (yychar != YYEOF && yychar != YYEMPTY)
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval, &yylloc);
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ YYPOPSTACK (yylen);
+ YY_STACK_PRINT (yyss, yyssp);
+ while (yyssp != yyss)
+ {
+ yydestruct ("Cleanup: popping",
+ yystos[*yyssp], yyvsp, yylsp);
+ YYPOPSTACK (1);
+ }
+#ifndef yyoverflow
+ if (yyss != yyssa)
+ YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+
+#line 485 "parse-gram.y"
+
+
+
+/* Return the location of the left-hand side of a rule whose
+ right-hand side is RHS[1] ... RHS[N]. Ignore empty nonterminals in
+ the right-hand side, and return an empty location equal to the end
+ boundary of RHS[0] if the right-hand side is empty. */
+
+static YYLTYPE
+lloc_default (YYLTYPE const *rhs, int n)
+{
+ int i;
+ YYLTYPE loc;
+
+ /* SGI MIPSpro 7.4.1m miscompiles "loc.start = loc.end = rhs[n].end;".
+ The bug is fixed in 7.4.2m, but play it safe for now. */
+ loc.start = rhs[n].end;
+ loc.end = rhs[n].end;
+
+ /* Ignore empty nonterminals the start of the the right-hand side.
+ Do not bother to ignore them at the end of the right-hand side,
+ since empty nonterminals have the same end as their predecessors. */
+ for (i = 1; i <= n; i++)
+ if (! equal_boundaries (rhs[i].start, rhs[i].end))
+ {
+ loc.start = rhs[i].start;
+ break;
+ }
+
+ return loc;
+}
+
+
+/* Add a lex-param or a parse-param (depending on TYPE) with
+ declaration DECL and location LOC. */
+
+static void
+add_param (char const *type, char *decl, location loc)
+{
+ static char const alphanum[26 + 26 + 1 + 10] =
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "_"
+ "0123456789";
+ char const *name_start = NULL;
+ char *p;
+
+ /* Stop on last actual character. */
+ for (p = decl; p[1]; p++)
+ if ((p == decl
+ || ! memchr (alphanum, p[-1], sizeof alphanum))
+ && memchr (alphanum, p[0], sizeof alphanum - 10))
+ name_start = p;
+
+ /* Strip the surrounding '{' and '}', and any blanks just inside
+ the braces. */
+ while (*--p == ' ' || *p == '\t')
+ continue;
+ p[1] = '\0';
+ while (*++decl == ' ' || *decl == '\t')
+ continue;
+
+ if (! name_start)
+ complain_at (loc, _("missing identifier in parameter declaration"));
+ else
+ {
+ char *name;
+ size_t name_len;
+
+ for (name_len = 1;
+ memchr (alphanum, name_start[name_len], sizeof alphanum);
+ name_len++)
+ continue;
+
+ name = xmalloc (name_len + 1);
+ memcpy (name, name_start, name_len);
+ name[name_len] = '\0';
+ muscle_pair_list_grow (type, decl, name);
+ free (name);
+ }
+
+ scanner_last_string_free ();
+}
+
+static void
+version_check (location const *loc, char const *version)
+{
+ if (strverscmp (version, PACKAGE_VERSION) > 0)
+ {
+ complain_at (*loc, "require bison %s, but have %s",
+ version, PACKAGE_VERSION);
+ exit (63);
+ }
+}
+
+static void
+gram_error (location const *loc, char const *msg)
+{
+ complain_at (*loc, "%s", msg);
+}
+
+char const *
+token_name (int type)
+{
+ return yytname[YYTRANSLATE (type)];
+}
+
diff --git a/src/parse-gram.h b/src/parse-gram.h
new file mode 100644
index 0000000..2d37fc1
--- /dev/null
+++ b/src/parse-gram.h
@@ -0,0 +1,183 @@
+/* A Bison parser, made by GNU Bison 2.2a. */
+
+/* Skeleton interface for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ GRAM_EOF = 0,
+ STRING = 258,
+ INT = 259,
+ PERCENT_TOKEN = 260,
+ PERCENT_NTERM = 261,
+ PERCENT_TYPE = 262,
+ PERCENT_DESTRUCTOR = 263,
+ PERCENT_PRINTER = 264,
+ PERCENT_UNION = 265,
+ PERCENT_LEFT = 266,
+ PERCENT_RIGHT = 267,
+ PERCENT_NONASSOC = 268,
+ PERCENT_PREC = 269,
+ PERCENT_DPREC = 270,
+ PERCENT_MERGE = 271,
+ PERCENT_DEBUG = 272,
+ PERCENT_DEFAULT_PREC = 273,
+ PERCENT_DEFINE = 274,
+ PERCENT_DEFINES = 275,
+ PERCENT_ERROR_VERBOSE = 276,
+ PERCENT_EXPECT = 277,
+ PERCENT_EXPECT_RR = 278,
+ PERCENT_FILE_PREFIX = 279,
+ PERCENT_GLR_PARSER = 280,
+ PERCENT_INITIAL_ACTION = 281,
+ PERCENT_LEX_PARAM = 282,
+ PERCENT_LOCATIONS = 283,
+ PERCENT_NAME_PREFIX = 284,
+ PERCENT_NO_DEFAULT_PREC = 285,
+ PERCENT_NO_LINES = 286,
+ PERCENT_NONDETERMINISTIC_PARSER = 287,
+ PERCENT_OUTPUT = 288,
+ PERCENT_PARSE_PARAM = 289,
+ PERCENT_PURE_PARSER = 290,
+ PERCENT_REQUIRE = 291,
+ PERCENT_SKELETON = 292,
+ PERCENT_START = 293,
+ PERCENT_TOKEN_TABLE = 294,
+ PERCENT_VERBOSE = 295,
+ PERCENT_YACC = 296,
+ TYPE = 297,
+ EQUAL = 298,
+ SEMICOLON = 299,
+ PIPE = 300,
+ ID = 301,
+ ID_COLON = 302,
+ PERCENT_PERCENT = 303,
+ PROLOGUE = 304,
+ EPILOGUE = 305,
+ BRACED_CODE = 306
+ };
+#endif
+/* Tokens. */
+#define GRAM_EOF 0
+#define STRING 258
+#define INT 259
+#define PERCENT_TOKEN 260
+#define PERCENT_NTERM 261
+#define PERCENT_TYPE 262
+#define PERCENT_DESTRUCTOR 263
+#define PERCENT_PRINTER 264
+#define PERCENT_UNION 265
+#define PERCENT_LEFT 266
+#define PERCENT_RIGHT 267
+#define PERCENT_NONASSOC 268
+#define PERCENT_PREC 269
+#define PERCENT_DPREC 270
+#define PERCENT_MERGE 271
+#define PERCENT_DEBUG 272
+#define PERCENT_DEFAULT_PREC 273
+#define PERCENT_DEFINE 274
+#define PERCENT_DEFINES 275
+#define PERCENT_ERROR_VERBOSE 276
+#define PERCENT_EXPECT 277
+#define PERCENT_EXPECT_RR 278
+#define PERCENT_FILE_PREFIX 279
+#define PERCENT_GLR_PARSER 280
+#define PERCENT_INITIAL_ACTION 281
+#define PERCENT_LEX_PARAM 282
+#define PERCENT_LOCATIONS 283
+#define PERCENT_NAME_PREFIX 284
+#define PERCENT_NO_DEFAULT_PREC 285
+#define PERCENT_NO_LINES 286
+#define PERCENT_NONDETERMINISTIC_PARSER 287
+#define PERCENT_OUTPUT 288
+#define PERCENT_PARSE_PARAM 289
+#define PERCENT_PURE_PARSER 290
+#define PERCENT_REQUIRE 291
+#define PERCENT_SKELETON 292
+#define PERCENT_START 293
+#define PERCENT_TOKEN_TABLE 294
+#define PERCENT_VERBOSE 295
+#define PERCENT_YACC 296
+#define TYPE 297
+#define EQUAL 298
+#define SEMICOLON 299
+#define PIPE 300
+#define ID 301
+#define ID_COLON 302
+#define PERCENT_PERCENT 303
+#define PROLOGUE 304
+#define EPILOGUE 305
+#define BRACED_CODE 306
+
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+#line 94 "parse-gram.y"
+{
+ symbol *symbol;
+ symbol_list *list;
+ int integer;
+ char *chars;
+ assoc assoc;
+ uniqstr uniqstr;
+}
+/* Line 1529 of yacc.c. */
+#line 162 "parse-gram.h"
+ YYSTYPE;
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
diff --git a/src/parse-gram.y b/src/parse-gram.y
new file mode 100644
index 0000000..e189e14
--- /dev/null
+++ b/src/parse-gram.y
@@ -0,0 +1,590 @@
+%{/* Bison Grammar Parser -*- C -*-
+
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301 USA
+*/
+
+#include <config.h>
+#include "system.h"
+
+#include "complain.h"
+#include "conflicts.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "muscle_tab.h"
+#include "quotearg.h"
+#include "reader.h"
+#include "symlist.h"
+#include "strverscmp.h"
+
+#define YYLLOC_DEFAULT(Current, Rhs, N) (Current) = lloc_default (Rhs, N)
+static YYLTYPE lloc_default (YYLTYPE const *, int);
+
+#define YY_LOCATION_PRINT(File, Loc) \
+ location_print (File, Loc)
+
+static void version_check (location const *loc, char const *version);
+
+/* Request detailed syntax error messages, and pass them to GRAM_ERROR.
+ FIXME: depends on the undocumented availability of YYLLOC. */
+#undef yyerror
+#define yyerror(Msg) \
+ gram_error (&yylloc, Msg)
+static void gram_error (location const *, char const *);
+
+static void add_param (char const *, char *, location);
+
+static symbol_class current_class = unknown_sym;
+static uniqstr current_type = 0;
+static symbol *current_lhs;
+static location current_lhs_location;
+static int current_prec = 0;
+
+#ifdef UINT_FAST8_MAX
+# define YYTYPE_UINT8 uint_fast8_t
+#endif
+#ifdef INT_FAST8_MAX
+# define YYTYPE_INT8 int_fast8_t
+#endif
+#ifdef UINT_FAST16_MAX
+# define YYTYPE_UINT16 uint_fast16_t
+#endif
+#ifdef INT_FAST16_MAX
+# define YYTYPE_INT16 int_fast16_t
+#endif
+%}
+
+%debug
+%verbose
+%defines
+%locations
+%pure-parser
+%error-verbose
+%defines
+%name-prefix="gram_"
+
+%initial-action
+{
+ /* Bison's grammar can initial empty locations, hence a default
+ location is needed. */
+ @$.start.file = @$.end.file = current_file;
+ @$.start.line = @$.end.line = 1;
+ @$.start.column = @$.end.column = 0;
+}
+
+/* Only NUMBERS have a value. */
+%union
+{
+ symbol *symbol;
+ symbol_list *list;
+ int integer;
+ char *chars;
+ assoc assoc;
+ uniqstr uniqstr;
+};
+
+/* Define the tokens together with their human representation. */
+%token GRAM_EOF 0 "end of file"
+%token STRING "string"
+%token INT "integer"
+
+%token PERCENT_TOKEN "%token"
+%token PERCENT_NTERM "%nterm"
+
+%token PERCENT_TYPE "%type"
+%token PERCENT_DESTRUCTOR "%destructor {...}"
+%token PERCENT_PRINTER "%printer {...}"
+
+%token PERCENT_UNION "%union {...}"
+
+%token PERCENT_LEFT "%left"
+%token PERCENT_RIGHT "%right"
+%token PERCENT_NONASSOC "%nonassoc"
+
+%token PERCENT_PREC "%prec"
+%token PERCENT_DPREC "%dprec"
+%token PERCENT_MERGE "%merge"
+
+
+/*----------------------.
+| Global Declarations. |
+`----------------------*/
+
+%token
+ PERCENT_DEBUG "%debug"
+ PERCENT_DEFAULT_PREC "%default-prec"
+ PERCENT_DEFINE "%define"
+ PERCENT_DEFINES "%defines"
+ PERCENT_ERROR_VERBOSE "%error-verbose"
+ PERCENT_EXPECT "%expect"
+ PERCENT_EXPECT_RR "%expect-rr"
+ PERCENT_FILE_PREFIX "%file-prefix"
+ PERCENT_GLR_PARSER "%glr-parser"
+ PERCENT_INITIAL_ACTION "%initial-action {...}"
+ PERCENT_LEX_PARAM "%lex-param {...}"
+ PERCENT_LOCATIONS "%locations"
+ PERCENT_NAME_PREFIX "%name-prefix"
+ PERCENT_NO_DEFAULT_PREC "%no-default-prec"
+ PERCENT_NO_LINES "%no-lines"
+ PERCENT_NONDETERMINISTIC_PARSER
+ "%nondeterministic-parser"
+ PERCENT_OUTPUT "%output"
+ PERCENT_PARSE_PARAM "%parse-param {...}"
+ PERCENT_PURE_PARSER "%pure-parser"
+ PERCENT_REQUIRE "%require"
+ PERCENT_SKELETON "%skeleton"
+ PERCENT_START "%start"
+ PERCENT_TOKEN_TABLE "%token-table"
+ PERCENT_VERBOSE "%verbose"
+ PERCENT_YACC "%yacc"
+;
+
+%token TYPE "type"
+%token EQUAL "="
+%token SEMICOLON ";"
+%token PIPE "|"
+%token ID "identifier"
+%token ID_COLON "identifier:"
+%token PERCENT_PERCENT "%%"
+%token PROLOGUE "%{...%}"
+%token EPILOGUE "epilogue"
+%token BRACED_CODE "{...}"
+
+
+%type <chars> STRING string_content
+ "%destructor {...}"
+ "%initial-action {...}"
+ "%lex-param {...}"
+ "%parse-param {...}"
+ "%printer {...}"
+ "%union {...}"
+ PROLOGUE EPILOGUE
+%printer { fprintf (stderr, "\"%s\"", $$); }
+ STRING string_content
+%printer { fprintf (stderr, "{\n%s\n}", $$); }
+ "%destructor {...}"
+ "%initial-action {...}"
+ "%lex-param {...}"
+ "%parse-param {...}"
+ "%printer {...}"
+ "%union {...}"
+ PROLOGUE EPILOGUE
+%type <uniqstr> TYPE
+%printer { fprintf (stderr, "<%s>", $$); } TYPE
+%type <integer> INT
+%printer { fprintf (stderr, "%d", $$); } INT
+%type <symbol> ID symbol string_as_id
+%printer { fprintf (stderr, "%s", $$->tag); } ID symbol string_as_id
+%type <symbol> ID_COLON
+%printer { fprintf (stderr, "%s:", $$->tag); } ID_COLON
+%type <assoc> precedence_declarator
+%type <list> symbols.1
+%%
+
+input:
+ declarations "%%" grammar epilogue.opt
+;
+
+
+ /*------------------------------------.
+ | Declarations: before the first %%. |
+ `------------------------------------*/
+
+declarations:
+ /* Nothing */
+| declarations declaration
+;
+
+declaration:
+ grammar_declaration
+| PROLOGUE { prologue_augment ($1, @1); }
+| "%debug" { debug_flag = true; }
+| "%define" string_content
+ {
+ static char one[] = "1";
+ muscle_insert ($2, one);
+ }
+| "%define" string_content string_content { muscle_insert ($2, $3); }
+| "%defines" { defines_flag = true; }
+| "%error-verbose" { error_verbose = true; }
+| "%expect" INT { expected_sr_conflicts = $2; }
+| "%expect-rr" INT { expected_rr_conflicts = $2; }
+| "%file-prefix" "=" string_content { spec_file_prefix = $3; }
+| "%glr-parser"
+ {
+ nondeterministic_parser = true;
+ glr_parser = true;
+ }
+| "%initial-action {...}"
+ {
+ muscle_code_grow ("initial_action", $1, @1);
+ }
+| "%lex-param {...}" { add_param ("lex_param", $1, @1); }
+| "%locations" { locations_flag = true; }
+| "%name-prefix" "=" string_content { spec_name_prefix = $3; }
+| "%no-lines" { no_lines_flag = true; }
+| "%nondeterministic-parser" { nondeterministic_parser = true; }
+| "%output" "=" string_content { spec_outfile = $3; }
+| "%parse-param {...}" { add_param ("parse_param", $1, @1); }
+| "%pure-parser" { pure_parser = true; }
+| "%require" string_content { version_check (&@2, $2); }
+| "%skeleton" string_content { skeleton = $2; }
+| "%token-table" { token_table_flag = true; }
+| "%verbose" { report_flag = report_states; }
+| "%yacc" { yacc_flag = true; }
+| /*FIXME: Err? What is this horror doing here? */ ";"
+;
+
+grammar_declaration:
+ precedence_declaration
+| symbol_declaration
+| "%start" symbol
+ {
+ grammar_start_symbol_set ($2, @2);
+ }
+| "%union {...}"
+ {
+ char const *body = $1;
+
+ if (typed)
+ {
+ /* Concatenate the union bodies, turning the first one's
+ trailing '}' into '\n', and omitting the second one's '{'. */
+ char *code = muscle_find ("stype");
+ code[strlen (code) - 1] = '\n';
+ body++;
+ }
+
+ typed = true;
+ muscle_code_grow ("stype", body, @1);
+ }
+| "%destructor {...}" symbols.1
+ {
+ symbol_list *list;
+ for (list = $2; list; list = list->next)
+ symbol_destructor_set (list->sym, $1, @1);
+ symbol_list_free ($2);
+ }
+| "%printer {...}" symbols.1
+ {
+ symbol_list *list;
+ for (list = $2; list; list = list->next)
+ symbol_printer_set (list->sym, $1, @1);
+ symbol_list_free ($2);
+ }
+| "%default-prec"
+ {
+ default_prec = true;
+ }
+| "%no-default-prec"
+ {
+ default_prec = false;
+ }
+;
+
+symbol_declaration:
+ "%nterm" { current_class = nterm_sym; } symbol_defs.1
+ {
+ current_class = unknown_sym;
+ current_type = NULL;
+ }
+| "%token" { current_class = token_sym; } symbol_defs.1
+ {
+ current_class = unknown_sym;
+ current_type = NULL;
+ }
+| "%type" TYPE symbols.1
+ {
+ symbol_list *list;
+ for (list = $3; list; list = list->next)
+ symbol_type_set (list->sym, $2, @2);
+ symbol_list_free ($3);
+ }
+;
+
+precedence_declaration:
+ precedence_declarator type.opt symbols.1
+ {
+ symbol_list *list;
+ ++current_prec;
+ for (list = $3; list; list = list->next)
+ {
+ symbol_type_set (list->sym, current_type, @2);
+ symbol_precedence_set (list->sym, current_prec, $1, @1);
+ }
+ symbol_list_free ($3);
+ current_type = NULL;
+ }
+;
+
+precedence_declarator:
+ "%left" { $$ = left_assoc; }
+| "%right" { $$ = right_assoc; }
+| "%nonassoc" { $$ = non_assoc; }
+;
+
+type.opt:
+ /* Nothing. */ { current_type = NULL; }
+| TYPE { current_type = $1; }
+;
+
+/* One or more nonterminals to be %typed. */
+
+symbols.1:
+ symbol { $$ = symbol_list_new ($1, @1); }
+| symbols.1 symbol { $$ = symbol_list_prepend ($1, $2, @2); }
+;
+
+/* One token definition. */
+symbol_def:
+ TYPE
+ {
+ current_type = $1;
+ }
+| ID
+ {
+ symbol_class_set ($1, current_class, @1, true);
+ symbol_type_set ($1, current_type, @1);
+ }
+| ID INT
+ {
+ symbol_class_set ($1, current_class, @1, true);
+ symbol_type_set ($1, current_type, @1);
+ symbol_user_token_number_set ($1, $2, @2);
+ }
+| ID string_as_id
+ {
+ symbol_class_set ($1, current_class, @1, true);
+ symbol_type_set ($1, current_type, @1);
+ symbol_make_alias ($1, $2, @$);
+ }
+| ID INT string_as_id
+ {
+ symbol_class_set ($1, current_class, @1, true);
+ symbol_type_set ($1, current_type, @1);
+ symbol_user_token_number_set ($1, $2, @2);
+ symbol_make_alias ($1, $3, @$);
+ }
+;
+
+/* One or more symbol definitions. */
+symbol_defs.1:
+ symbol_def
+| symbol_defs.1 symbol_def
+;
+
+
+ /*------------------------------------------.
+ | The grammar section: between the two %%. |
+ `------------------------------------------*/
+
+grammar:
+ rules_or_grammar_declaration
+| grammar rules_or_grammar_declaration
+;
+
+/* As a Bison extension, one can use the grammar declarations in the
+ body of the grammar. */
+rules_or_grammar_declaration:
+ rules
+| grammar_declaration ";"
+| error ";"
+ {
+ yyerrok;
+ }
+;
+
+rules:
+ ID_COLON { current_lhs = $1; current_lhs_location = @1; } rhses.1
+;
+
+rhses.1:
+ rhs { grammar_current_rule_end (@1); }
+| rhses.1 "|" rhs { grammar_current_rule_end (@3); }
+| rhses.1 ";"
+;
+
+rhs:
+ /* Nothing. */
+ { grammar_current_rule_begin (current_lhs, current_lhs_location); }
+| rhs symbol
+ { grammar_current_rule_symbol_append ($2, @2); }
+| rhs action
+| rhs "%prec" symbol
+ { grammar_current_rule_prec_set ($3, @3); }
+| rhs "%dprec" INT
+ { grammar_current_rule_dprec_set ($3, @3); }
+| rhs "%merge" TYPE
+ { grammar_current_rule_merge_set ($3, @3); }
+;
+
+symbol:
+ ID { $$ = $1; }
+| string_as_id { $$ = $1; }
+;
+
+/* Handle the semantics of an action specially, with a mid-rule
+ action, so that grammar_current_rule_action_append is invoked
+ immediately after the braced code is read by the scanner.
+
+ This implementation relies on the LALR(1) parsing algorithm.
+ If grammar_current_rule_action_append were executed in a normal
+ action for this rule, then when the input grammar contains two
+ successive actions, the scanner would have to read both actions
+ before reducing this rule. That wouldn't work, since the scanner
+ relies on all preceding input actions being processed by
+ grammar_current_rule_action_append before it scans the next
+ action. */
+action:
+ { grammar_current_rule_action_append (last_string, last_braced_code_loc); }
+ BRACED_CODE
+;
+
+/* A string used as an ID: quote it. */
+string_as_id:
+ STRING
+ {
+ $$ = symbol_get (quotearg_style (c_quoting_style, $1), @1);
+ symbol_class_set ($$, token_sym, @1, false);
+ }
+;
+
+/* A string used for its contents. Don't quote it. */
+string_content:
+ STRING
+ { $$ = $1; }
+;
+
+
+epilogue.opt:
+ /* Nothing. */
+| "%%" EPILOGUE
+ {
+ muscle_code_grow ("epilogue", $2, @2);
+ scanner_last_string_free ();
+ }
+;
+
+%%
+
+
+/* Return the location of the left-hand side of a rule whose
+ right-hand side is RHS[1] ... RHS[N]. Ignore empty nonterminals in
+ the right-hand side, and return an empty location equal to the end
+ boundary of RHS[0] if the right-hand side is empty. */
+
+static YYLTYPE
+lloc_default (YYLTYPE const *rhs, int n)
+{
+ int i;
+ YYLTYPE loc;
+
+ /* SGI MIPSpro 7.4.1m miscompiles "loc.start = loc.end = rhs[n].end;".
+ The bug is fixed in 7.4.2m, but play it safe for now. */
+ loc.start = rhs[n].end;
+ loc.end = rhs[n].end;
+
+ /* Ignore empty nonterminals the start of the the right-hand side.
+ Do not bother to ignore them at the end of the right-hand side,
+ since empty nonterminals have the same end as their predecessors. */
+ for (i = 1; i <= n; i++)
+ if (! equal_boundaries (rhs[i].start, rhs[i].end))
+ {
+ loc.start = rhs[i].start;
+ break;
+ }
+
+ return loc;
+}
+
+
+/* Add a lex-param or a parse-param (depending on TYPE) with
+ declaration DECL and location LOC. */
+
+static void
+add_param (char const *type, char *decl, location loc)
+{
+ static char const alphanum[26 + 26 + 1 + 10] =
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "_"
+ "0123456789";
+ char const *name_start = NULL;
+ char *p;
+
+ /* Stop on last actual character. */
+ for (p = decl; p[1]; p++)
+ if ((p == decl
+ || ! memchr (alphanum, p[-1], sizeof alphanum))
+ && memchr (alphanum, p[0], sizeof alphanum - 10))
+ name_start = p;
+
+ /* Strip the surrounding '{' and '}', and any blanks just inside
+ the braces. */
+ while (*--p == ' ' || *p == '\t')
+ continue;
+ p[1] = '\0';
+ while (*++decl == ' ' || *decl == '\t')
+ continue;
+
+ if (! name_start)
+ complain_at (loc, _("missing identifier in parameter declaration"));
+ else
+ {
+ char *name;
+ size_t name_len;
+
+ for (name_len = 1;
+ memchr (alphanum, name_start[name_len], sizeof alphanum);
+ name_len++)
+ continue;
+
+ name = xmalloc (name_len + 1);
+ memcpy (name, name_start, name_len);
+ name[name_len] = '\0';
+ muscle_pair_list_grow (type, decl, name);
+ free (name);
+ }
+
+ scanner_last_string_free ();
+}
+
+static void
+version_check (location const *loc, char const *version)
+{
+ if (strverscmp (version, PACKAGE_VERSION) > 0)
+ {
+ complain_at (*loc, "require bison %s, but have %s",
+ version, PACKAGE_VERSION);
+ exit (63);
+ }
+}
+
+static void
+gram_error (location const *loc, char const *msg)
+{
+ complain_at (*loc, "%s", msg);
+}
+
+char const *
+token_name (int type)
+{
+ return yytname[YYTRANSLATE (type)];
+}
diff --git a/src/print.c b/src/print.c
new file mode 100644
index 0000000..cb1600c
--- /dev/null
+++ b/src/print.c
@@ -0,0 +1,575 @@
+/* Print information on generated parser, for bison,
+
+ Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitset.h>
+#include <quotearg.h>
+
+#include "LR0.h"
+#include "closure.h"
+#include "conflicts.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "lalr.h"
+#include "print.h"
+#include "reader.h"
+#include "reduce.h"
+#include "state.h"
+#include "symtab.h"
+
+static bitset shift_set;
+static bitset look_ahead_set;
+
+#if 0
+static void
+print_token (int extnum, int token)
+{
+ fprintf (out, _(" type %d is %s\n"), extnum, tags[token]);
+}
+#endif
+
+
+
+/*---------------------------------------.
+| *WIDTH := max (*WIDTH, strlen (STR)). |
+`---------------------------------------*/
+
+static void
+max_length (size_t *width, const char *str)
+{
+ size_t len = strlen (str);
+ if (len > *width)
+ *width = len;
+}
+
+/*--------------------------------.
+| Report information on a state. |
+`--------------------------------*/
+
+static void
+print_core (FILE *out, state *s)
+{
+ size_t i;
+ item_number *sitems = s->items;
+ size_t snritems = s->nitems;
+ symbol *previous_lhs = NULL;
+
+ /* Output all the items of a state, not only its kernel. */
+ if (report_flag & report_itemsets)
+ {
+ closure (sitems, snritems);
+ sitems = itemset;
+ snritems = nritemset;
+ }
+
+ if (!snritems)
+ return;
+
+ fputc ('\n', out);
+
+ for (i = 0; i < snritems; i++)
+ {
+ item_number *sp;
+ item_number *sp1;
+ rule_number r;
+
+ sp1 = sp = ritem + sitems[i];
+
+ while (*sp >= 0)
+ sp++;
+
+ r = item_number_as_rule_number (*sp);
+
+ rule_lhs_print (&rules[r], previous_lhs, out);
+ previous_lhs = rules[r].lhs;
+
+ for (sp = rules[r].rhs; sp < sp1; sp++)
+ fprintf (out, " %s", symbols[*sp]->tag);
+ fputs (" .", out);
+ for (/* Nothing */; *sp >= 0; ++sp)
+ fprintf (out, " %s", symbols[*sp]->tag);
+
+ /* Display the look-ahead tokens? */
+ if (report_flag & report_look_ahead_tokens)
+ state_rule_look_ahead_tokens_print (s, &rules[r], out);
+
+ fputc ('\n', out);
+ }
+}
+
+
+/*------------------------------------------------------------.
+| Report the shifts iff DISPLAY_SHIFTS_P or the gotos of S on |
+| OUT. |
+`------------------------------------------------------------*/
+
+static void
+print_transitions (state *s, FILE *out, bool display_transitions_p)
+{
+ transitions *trans = s->transitions;
+ size_t width = 0;
+ int i;
+
+ /* Compute the width of the look-ahead token column. */
+ for (i = 0; i < trans->num; i++)
+ if (!TRANSITION_IS_DISABLED (trans, i)
+ && TRANSITION_IS_SHIFT (trans, i) == display_transitions_p)
+ {
+ symbol *sym = symbols[TRANSITION_SYMBOL (trans, i)];
+ max_length (&width, sym->tag);
+ }
+
+ /* Nothing to report. */
+ if (!width)
+ return;
+
+ fputc ('\n', out);
+ width += 2;
+
+ /* Report look-ahead tokens and shifts. */
+ for (i = 0; i < trans->num; i++)
+ if (!TRANSITION_IS_DISABLED (trans, i)
+ && TRANSITION_IS_SHIFT (trans, i) == display_transitions_p)
+ {
+ symbol *sym = symbols[TRANSITION_SYMBOL (trans, i)];
+ const char *tag = sym->tag;
+ state *s1 = trans->states[i];
+ int j;
+
+ fprintf (out, " %s", tag);
+ for (j = width - strlen (tag); j > 0; --j)
+ fputc (' ', out);
+ if (display_transitions_p)
+ fprintf (out, _("shift, and go to state %d\n"), s1->number);
+ else
+ fprintf (out, _("go to state %d\n"), s1->number);
+ }
+}
+
+
+/*--------------------------------------------------------.
+| Report the explicit errors of S raised from %nonassoc. |
+`--------------------------------------------------------*/
+
+static void
+print_errs (FILE *out, state *s)
+{
+ errs *errp = s->errs;
+ size_t width = 0;
+ int i;
+
+ /* Compute the width of the look-ahead token column. */
+ for (i = 0; i < errp->num; ++i)
+ if (errp->symbols[i])
+ max_length (&width, errp->symbols[i]->tag);
+
+ /* Nothing to report. */
+ if (!width)
+ return;
+
+ fputc ('\n', out);
+ width += 2;
+
+ /* Report look-ahead tokens and errors. */
+ for (i = 0; i < errp->num; ++i)
+ if (errp->symbols[i])
+ {
+ const char *tag = errp->symbols[i]->tag;
+ int j;
+ fprintf (out, " %s", tag);
+ for (j = width - strlen (tag); j > 0; --j)
+ fputc (' ', out);
+ fputs (_("error (nonassociative)\n"), out);
+ }
+}
+
+
+/*-------------------------------------------------------------.
+| Return the default rule of S if it has one, NULL otherwise. |
+`-------------------------------------------------------------*/
+
+static rule *
+state_default_rule (state *s)
+{
+ reductions *reds = s->reductions;
+ rule *default_rule = NULL;
+ int cmax = 0;
+ int i;
+
+ /* No need for a look-ahead. */
+ if (s->consistent)
+ return reds->rules[0];
+
+ /* 1. Each reduction is possibly masked by the look-ahead tokens on which
+ we shift (S/R conflicts)... */
+ bitset_zero (shift_set);
+ {
+ transitions *trans = s->transitions;
+ FOR_EACH_SHIFT (trans, i)
+ {
+ /* If this state has a shift for the error token, don't use a
+ default rule. */
+ if (TRANSITION_IS_ERROR (trans, i))
+ return NULL;
+ bitset_set (shift_set, TRANSITION_SYMBOL (trans, i));
+ }
+ }
+
+ /* 2. Each reduction is possibly masked by the look-ahead tokens on which
+ we raise an error (due to %nonassoc). */
+ {
+ errs *errp = s->errs;
+ for (i = 0; i < errp->num; i++)
+ if (errp->symbols[i])
+ bitset_set (shift_set, errp->symbols[i]->number);
+ }
+
+ for (i = 0; i < reds->num; ++i)
+ {
+ int count = 0;
+
+ /* How many non-masked look-ahead tokens are there for this
+ reduction? */
+ bitset_andn (look_ahead_set, reds->look_ahead_tokens[i], shift_set);
+ count = bitset_count (look_ahead_set);
+
+ if (count > cmax)
+ {
+ cmax = count;
+ default_rule = reds->rules[i];
+ }
+
+ /* 3. And finally, each reduction is possibly masked by previous
+ reductions (in R/R conflicts, we keep the first reductions).
+ */
+ bitset_or (shift_set, shift_set, reds->look_ahead_tokens[i]);
+ }
+
+ return default_rule;
+}
+
+
+/*--------------------------------------------------------------------------.
+| Report a reduction of RULE on LOOK_AHEAD_TOKEN (which can be `default'). |
+| If not ENABLED, the rule is masked by a shift or a reduce (S/R and |
+| R/R conflicts). |
+`--------------------------------------------------------------------------*/
+
+static void
+print_reduction (FILE *out, size_t width,
+ const char *look_ahead_token,
+ rule *r, bool enabled)
+{
+ int j;
+ fprintf (out, " %s", look_ahead_token);
+ for (j = width - strlen (look_ahead_token); j > 0; --j)
+ fputc (' ', out);
+ if (!enabled)
+ fputc ('[', out);
+ if (r->number)
+ fprintf (out, _("reduce using rule %d (%s)"), r->number, r->lhs->tag);
+ else
+ fprintf (out, _("accept"));
+ if (!enabled)
+ fputc (']', out);
+ fputc ('\n', out);
+}
+
+
+/*-------------------------------------------.
+| Report on OUT the reduction actions of S. |
+`-------------------------------------------*/
+
+static void
+print_reductions (FILE *out, state *s)
+{
+ transitions *trans = s->transitions;
+ reductions *reds = s->reductions;
+ rule *default_rule = NULL;
+ size_t width = 0;
+ int i, j;
+
+ if (reds->num == 0)
+ return;
+
+ default_rule = state_default_rule (s);
+
+ bitset_zero (shift_set);
+ FOR_EACH_SHIFT (trans, i)
+ bitset_set (shift_set, TRANSITION_SYMBOL (trans, i));
+
+ /* Compute the width of the look-ahead token column. */
+ if (default_rule)
+ width = strlen (_("$default"));
+
+ if (reds->look_ahead_tokens)
+ for (i = 0; i < ntokens; i++)
+ {
+ bool count = bitset_test (shift_set, i);
+
+ for (j = 0; j < reds->num; ++j)
+ if (bitset_test (reds->look_ahead_tokens[j], i))
+ {
+ if (! count)
+ {
+ if (reds->rules[j] != default_rule)
+ max_length (&width, symbols[i]->tag);
+ count = true;
+ }
+ else
+ {
+ max_length (&width, symbols[i]->tag);
+ }
+ }
+ }
+
+ /* Nothing to report. */
+ if (!width)
+ return;
+
+ fputc ('\n', out);
+ width += 2;
+
+ /* Report look-ahead tokens (or $default) and reductions. */
+ if (reds->look_ahead_tokens)
+ for (i = 0; i < ntokens; i++)
+ {
+ bool defaulted = false;
+ bool count = bitset_test (shift_set, i);
+
+ for (j = 0; j < reds->num; ++j)
+ if (bitset_test (reds->look_ahead_tokens[j], i))
+ {
+ if (! count)
+ {
+ if (reds->rules[j] != default_rule)
+ print_reduction (out, width,
+ symbols[i]->tag,
+ reds->rules[j], true);
+ else
+ defaulted = true;
+ count = true;
+ }
+ else
+ {
+ if (defaulted)
+ print_reduction (out, width,
+ symbols[i]->tag,
+ default_rule, true);
+ defaulted = false;
+ print_reduction (out, width,
+ symbols[i]->tag,
+ reds->rules[j], false);
+ }
+ }
+ }
+
+ if (default_rule)
+ print_reduction (out, width,
+ _("$default"), default_rule, true);
+}
+
+
+/*--------------------------------------------------------------.
+| Report on OUT all the actions (shifts, gotos, reductions, and |
+| explicit erros from %nonassoc) of S. |
+`--------------------------------------------------------------*/
+
+static void
+print_actions (FILE *out, state *s)
+{
+ /* Print shifts. */
+ print_transitions (s, out, true);
+ print_errs (out, s);
+ print_reductions (out, s);
+ /* Print gotos. */
+ print_transitions (s, out, false);
+}
+
+
+/*----------------------------------.
+| Report all the data on S on OUT. |
+`----------------------------------*/
+
+static void
+print_state (FILE *out, state *s)
+{
+ fputs ("\n\n", out);
+ fprintf (out, _("state %d"), s->number);
+ fputc ('\n', out);
+ print_core (out, s);
+ print_actions (out, s);
+ if ((report_flag & report_solved_conflicts) && s->solved_conflicts)
+ {
+ fputc ('\n', out);
+ fputs (s->solved_conflicts, out);
+ }
+}
+
+/*-----------------------------------------.
+| Print information on the whole grammar. |
+`-----------------------------------------*/
+
+#define END_TEST(End) \
+do { \
+ if (column + strlen(buffer) > (End)) \
+ { \
+ fprintf (out, "%s\n ", buffer); \
+ column = 3; \
+ buffer[0] = 0; \
+ } \
+} while (0)
+
+
+static void
+print_grammar (FILE *out)
+{
+ symbol_number i;
+ char buffer[90];
+ int column = 0;
+
+ grammar_rules_print (out);
+
+ /* TERMINAL (type #) : rule #s terminal is on RHS */
+ fprintf (out, "%s\n\n", _("Terminals, with rules where they appear"));
+ for (i = 0; i < max_user_token_number + 1; i++)
+ if (token_translations[i] != undeftoken->number)
+ {
+ const char *tag = symbols[token_translations[i]]->tag;
+ rule_number r;
+ item_number *rhsp;
+
+ buffer[0] = 0;
+ column = strlen (tag);
+ fputs (tag, out);
+ END_TEST (50);
+ sprintf (buffer, " (%d)", i);
+
+ for (r = 0; r < nrules; r++)
+ for (rhsp = rules[r].rhs; *rhsp >= 0; rhsp++)
+ if (item_number_as_symbol_number (*rhsp) == token_translations[i])
+ {
+ END_TEST (65);
+ sprintf (buffer + strlen (buffer), " %d", r);
+ break;
+ }
+ fprintf (out, "%s\n", buffer);
+ }
+ fputs ("\n\n", out);
+
+
+ fprintf (out, "%s\n\n", _("Nonterminals, with rules where they appear"));
+ for (i = ntokens; i < nsyms; i++)
+ {
+ int left_count = 0, right_count = 0;
+ rule_number r;
+ const char *tag = symbols[i]->tag;
+
+ for (r = 0; r < nrules; r++)
+ {
+ item_number *rhsp;
+ if (rules[r].lhs->number == i)
+ left_count++;
+ for (rhsp = rules[r].rhs; *rhsp >= 0; rhsp++)
+ if (item_number_as_symbol_number (*rhsp) == i)
+ {
+ right_count++;
+ break;
+ }
+ }
+
+ buffer[0] = 0;
+ fputs (tag, out);
+ column = strlen (tag);
+ sprintf (buffer, " (%d)", i);
+ END_TEST (0);
+
+ if (left_count > 0)
+ {
+ END_TEST (50);
+ sprintf (buffer + strlen (buffer), _(" on left:"));
+
+ for (r = 0; r < nrules; r++)
+ {
+ END_TEST (65);
+ if (rules[r].lhs->number == i)
+ sprintf (buffer + strlen (buffer), " %d", r);
+ }
+ }
+
+ if (right_count > 0)
+ {
+ if (left_count > 0)
+ sprintf (buffer + strlen (buffer), ",");
+ END_TEST (50);
+ sprintf (buffer + strlen (buffer), _(" on right:"));
+ for (r = 0; r < nrules; r++)
+ {
+ item_number *rhsp;
+ for (rhsp = rules[r].rhs; *rhsp >= 0; rhsp++)
+ if (item_number_as_symbol_number (*rhsp) == i)
+ {
+ END_TEST (65);
+ sprintf (buffer + strlen (buffer), " %d", r);
+ break;
+ }
+ }
+ }
+ fprintf (out, "%s\n", buffer);
+ }
+}
+
+void
+print_results (void)
+{
+ state_number i;
+
+ /* We used to use just .out if SPEC_NAME_PREFIX (-p) was used, but
+ that conflicts with Posix. */
+ FILE *out = xfopen (spec_verbose_file, "w");
+
+ reduce_output (out);
+ grammar_rules_partial_print (out,
+ _("Rules never reduced"), rule_never_reduced_p);
+ conflicts_output (out);
+
+ print_grammar (out);
+
+ /* If the whole state item sets, not only the kernels, are wanted,
+ `closure' will be run, which needs memory allocation/deallocation. */
+ if (report_flag & report_itemsets)
+ new_closure (nritems);
+ /* Storage for print_reductions. */
+ shift_set = bitset_create (ntokens, BITSET_FIXED);
+ look_ahead_set = bitset_create (ntokens, BITSET_FIXED);
+ for (i = 0; i < nstates; i++)
+ print_state (out, states[i]);
+ bitset_free (shift_set);
+ bitset_free (look_ahead_set);
+ if (report_flag & report_itemsets)
+ free_closure ();
+
+ xfclose (out);
+}
diff --git a/src/print.h b/src/print.h
new file mode 100644
index 0000000..1daa577
--- /dev/null
+++ b/src/print.h
@@ -0,0 +1,26 @@
+/* Print information on generated parser, for bison,
+ Copyright 2000 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef PRINT_H_
+# define PRINT_H_
+
+void print_results (void);
+
+#endif /* !PRINT_H_ */
diff --git a/src/print_graph.c b/src/print_graph.c
new file mode 100644
index 0000000..9580f3f
--- /dev/null
+++ b/src/print_graph.c
@@ -0,0 +1,227 @@
+/* Output a VCG description on generated parser, for Bison,
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <quotearg.h>
+
+#include "LR0.h"
+#include "closure.h"
+#include "complain.h"
+#include "conflicts.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "lalr.h"
+#include "print_graph.h"
+#include "reader.h"
+#include "state.h"
+#include "symtab.h"
+#include "vcg.h"
+
+static graph static_graph;
+static FILE *fgraph = NULL;
+
+
+/*----------------------------.
+| Construct the node labels. |
+`----------------------------*/
+
+static void
+print_core (struct obstack *oout, state *s)
+{
+ size_t i;
+ item_number *sitems = s->items;
+ size_t snritems = s->nitems;
+
+ /* Output all the items of a state, not only its kernel. */
+ if (report_flag & report_itemsets)
+ {
+ closure (sitems, snritems);
+ sitems = itemset;
+ snritems = nritemset;
+ }
+
+ obstack_fgrow1 (oout, "state %2d\n", s->number);
+ for (i = 0; i < snritems; i++)
+ {
+ item_number *sp;
+ item_number *sp1;
+ rule_number r;
+
+ sp1 = sp = ritem + sitems[i];
+
+ while (*sp >= 0)
+ sp++;
+
+ r = item_number_as_rule_number (*sp);
+
+ if (i)
+ obstack_1grow (oout, '\n');
+ obstack_fgrow1 (oout, " %s -> ",
+ rules[r].lhs->tag);
+
+ for (sp = rules[r].rhs; sp < sp1; sp++)
+ obstack_fgrow1 (oout, "%s ", symbols[*sp]->tag);
+
+ obstack_1grow (oout, '.');
+
+ for (/* Nothing */; *sp >= 0; ++sp)
+ obstack_fgrow1 (oout, " %s", symbols[*sp]->tag);
+
+ /* Experimental feature: display the look-ahead tokens. */
+ if (report_flag & report_look_ahead_tokens)
+ {
+ /* Find the reduction we are handling. */
+ reductions *reds = s->reductions;
+ int redno = state_reduction_find (s, &rules[r]);
+
+ /* Print them if there are. */
+ if (reds->look_ahead_tokens && redno != -1)
+ {
+ bitset_iterator biter;
+ int k;
+ char const *sep = "";
+ obstack_sgrow (oout, "[");
+ BITSET_FOR_EACH (biter, reds->look_ahead_tokens[redno], k, 0)
+ {
+ obstack_fgrow2 (oout, "%s%s", sep, symbols[k]->tag);
+ sep = ", ";
+ }
+ obstack_sgrow (oout, "]");
+ }
+ }
+ }
+}
+
+
+/*---------------------------------------------------------------.
+| Output in graph_obstack edges specifications in incidence with |
+| current node. |
+`---------------------------------------------------------------*/
+
+static void
+print_actions (state *s, const char *node_name)
+{
+ int i;
+
+ transitions *trans = s->transitions;
+ reductions *reds = s->reductions;
+
+ static char buff[10];
+ edge e;
+
+ if (!trans->num && !reds)
+ return;
+
+ for (i = 0; i < trans->num; i++)
+ if (!TRANSITION_IS_DISABLED (trans, i))
+ {
+ state *s1 = trans->states[i];
+ symbol_number sym = s1->accessing_symbol;
+
+ new_edge (&e);
+
+ if (s->number > s1->number)
+ e.type = back_edge;
+ open_edge (&e, fgraph);
+ /* The edge source is the current node. */
+ e.sourcename = node_name;
+ sprintf (buff, "%d", s1->number);
+ e.targetname = buff;
+ /* Shifts are blue, gotos are green, and error is red. */
+ if (TRANSITION_IS_ERROR (trans, i))
+ e.color = red;
+ else
+ e.color = TRANSITION_IS_SHIFT (trans, i) ? blue : green;
+ e.label = symbols[sym]->tag;
+ output_edge (&e, fgraph);
+ close_edge (fgraph);
+ }
+}
+
+
+/*-------------------------------------------------------------.
+| Output in FGRAPH the current node specifications and exiting |
+| edges. |
+`-------------------------------------------------------------*/
+
+static void
+print_state (state *s)
+{
+ static char name[10];
+ struct obstack node_obstack;
+ node n;
+
+ /* The labels of the nodes are their the items. */
+ obstack_init (&node_obstack);
+ new_node (&n);
+ sprintf (name, "%d", s->number);
+ n.title = name;
+ print_core (&node_obstack, s);
+ obstack_1grow (&node_obstack, '\0');
+ n.label = obstack_finish (&node_obstack);
+
+ open_node (fgraph);
+ output_node (&n, fgraph);
+ close_node (fgraph);
+
+ /* Output the edges. */
+ print_actions (s, name);
+
+ obstack_free (&node_obstack, 0);
+}
+
+
+void
+print_graph (void)
+{
+ state_number i;
+
+ /* Output file. */
+ fgraph = xfopen (spec_graph_file, "w");
+
+ new_graph (&static_graph);
+
+ static_graph.display_edge_labels = yes;
+
+ static_graph.port_sharing = no;
+ static_graph.finetuning = yes;
+ static_graph.priority_phase = yes;
+ static_graph.splines = yes;
+
+ static_graph.crossing_weight = median;
+
+ /* Output graph options. */
+ open_graph (fgraph);
+ output_graph (&static_graph, fgraph);
+
+ /* Output nodes and edges. */
+ new_closure (nritems);
+ for (i = 0; i < nstates; i++)
+ print_state (states[i]);
+ free_closure ();
+
+ /* Close graph. */
+ close_graph (&static_graph, fgraph);
+ xfclose (fgraph);
+}
diff --git a/src/print_graph.h b/src/print_graph.h
new file mode 100644
index 0000000..befc531
--- /dev/null
+++ b/src/print_graph.h
@@ -0,0 +1,26 @@
+/* Output a VCG description on generated parser, for bison,
+ Copyright 2000 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef PRINT_GRAPH_H_
+# define PRINT_GRAPH_H_
+
+void print_graph (void);
+
+#endif /* !PRINT_GRAPH_H_ */
diff --git a/src/reader.c b/src/reader.c
new file mode 100644
index 0000000..d07ce5c
--- /dev/null
+++ b/src/reader.c
@@ -0,0 +1,576 @@
+/* Input parser for Bison
+
+ Copyright (C) 1984, 1986, 1989, 1992, 1998, 2000, 2001, 2002, 2003,
+ 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <quotearg.h>
+
+#include "complain.h"
+#include "conflicts.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "muscle_tab.h"
+#include "reader.h"
+#include "symlist.h"
+#include "symtab.h"
+
+static void check_and_convert_grammar (void);
+
+static symbol_list *grammar = NULL;
+static bool start_flag = false;
+merger_list *merge_functions;
+
+/* Was %union seen? */
+bool typed = false;
+
+/* Should rules have a default precedence? */
+bool default_prec = true;
+
+/*-----------------------.
+| Set the start symbol. |
+`-----------------------*/
+
+void
+grammar_start_symbol_set (symbol *sym, location loc)
+{
+ if (start_flag)
+ complain_at (loc, _("multiple %s declarations"), "%start");
+ else
+ {
+ start_flag = true;
+ startsymbol = sym;
+ startsymbol_location = loc;
+ }
+}
+
+
+/*----------------------------------------------------------------.
+| There are two prologues: one before %union, one after. Augment |
+| the current one. |
+`----------------------------------------------------------------*/
+
+void
+prologue_augment (const char *prologue, location loc)
+{
+ struct obstack *oout =
+ !typed ? &pre_prologue_obstack : &post_prologue_obstack;
+
+ obstack_fgrow1 (oout, "]b4_syncline(%d, [[", loc.start.line);
+ MUSCLE_OBSTACK_SGROW (oout,
+ quotearg_style (c_quoting_style, loc.start.file));
+ obstack_sgrow (oout, "]])[\n");
+ obstack_sgrow (oout, prologue);
+}
+
+
+
+/*-------------------------------------------------------------------.
+| Return the merger index for a merging function named NAME, whose |
+| arguments have type TYPE. Records the function, if new, in |
+| MERGER_LIST. |
+`-------------------------------------------------------------------*/
+
+static int
+get_merge_function (uniqstr name, uniqstr type, location loc)
+{
+ merger_list *syms;
+ merger_list head;
+ int n;
+
+ if (! glr_parser)
+ return 0;
+
+ if (type == NULL)
+ type = uniqstr_new ("");
+
+ head.next = merge_functions;
+ for (syms = &head, n = 1; syms->next; syms = syms->next, n += 1)
+ if (UNIQSTR_EQ (name, syms->next->name))
+ break;
+ if (syms->next == NULL)
+ {
+ syms->next = xmalloc (sizeof syms->next[0]);
+ syms->next->name = uniqstr_new (name);
+ syms->next->type = uniqstr_new (type);
+ syms->next->next = NULL;
+ merge_functions = head.next;
+ }
+ else if (!UNIQSTR_EQ (type, syms->next->type))
+ warn_at (loc, _("result type clash on merge function %s: <%s> != <%s>"),
+ name, type, syms->next->type);
+ return n;
+}
+
+/*--------------------------------------.
+| Free all merge-function definitions. |
+`--------------------------------------*/
+
+void
+free_merger_functions (void)
+{
+ merger_list *L0 = merge_functions;
+ while (L0)
+ {
+ merger_list *L1 = L0->next;
+ free (L0);
+ L0 = L1;
+ }
+}
+
+
+/*-------------------------------------------------------------------.
+| Parse the input grammar into a one symbol_list structure. Each |
+| rule is represented by a sequence of symbols: the left hand side |
+| followed by the contents of the right hand side, followed by a |
+| null pointer instead of a symbol to terminate the rule. The next |
+| symbol is the lhs of the following rule. |
+| |
+| All actions are copied out, labelled by the rule number they apply |
+| to. |
+`-------------------------------------------------------------------*/
+
+/* The (currently) last symbol of GRAMMAR. */
+static symbol_list *grammar_end = NULL;
+
+/* Append SYM to the grammar. */
+static void
+grammar_symbol_append (symbol *sym, location loc)
+{
+ symbol_list *p = symbol_list_new (sym, loc);
+
+ if (grammar_end)
+ grammar_end->next = p;
+ else
+ grammar = p;
+
+ grammar_end = p;
+
+ /* A null SYM stands for an end of rule; it is not an actual
+ part of it. */
+ if (sym)
+ ++nritems;
+}
+
+/* The rule currently being defined, and the previous rule.
+ CURRENT_RULE points to the first LHS of the current rule, while
+ PREVIOUS_RULE_END points to the *end* of the previous rule (NULL). */
+symbol_list *current_rule = NULL;
+static symbol_list *previous_rule_end = NULL;
+
+
+/*----------------------------------------------.
+| Create a new rule for LHS in to the GRAMMAR. |
+`----------------------------------------------*/
+
+void
+grammar_current_rule_begin (symbol *lhs, location loc)
+{
+ if (!start_flag)
+ {
+ startsymbol = lhs;
+ startsymbol_location = loc;
+ start_flag = true;
+ }
+
+ /* Start a new rule and record its lhs. */
+ ++nrules;
+ previous_rule_end = grammar_end;
+ grammar_symbol_append (lhs, loc);
+ current_rule = grammar_end;
+
+ /* Mark the rule's lhs as a nonterminal if not already so. */
+ if (lhs->class == unknown_sym)
+ {
+ lhs->class = nterm_sym;
+ lhs->number = nvars;
+ ++nvars;
+ }
+ else if (lhs->class == token_sym)
+ complain_at (loc, _("rule given for %s, which is a token"), lhs->tag);
+}
+
+
+/*----------------------------------------------------------------------.
+| A symbol should be used if it has a destructor, or if it is a |
+| mid-rule symbol (i.e., the generated LHS replacing a mid-rule |
+| action) that was assigned to, as in "exp: { $$ = 1; } { $$ = $1; }". |
+`----------------------------------------------------------------------*/
+
+static bool
+symbol_should_be_used (symbol_list const *s)
+{
+ return (s->sym->destructor
+ || (s->midrule && s->midrule->used));
+}
+
+/*----------------------------------------------------------------.
+| Check that the rule R is properly defined. For instance, there |
+| should be no type clash on the default action. |
+`----------------------------------------------------------------*/
+
+static void
+grammar_rule_check (const symbol_list *r)
+{
+ /* Type check.
+
+ If there is an action, then there is nothing we can do: the user
+ is allowed to shoot herself in the foot.
+
+ Don't worry about the default action if $$ is untyped, since $$'s
+ value can't be used. */
+ if (!r->action && r->sym->type_name)
+ {
+ symbol *first_rhs = r->next->sym;
+ /* If $$ is being set in default way, report if any type mismatch. */
+ if (first_rhs)
+ {
+ char const *lhs_type = r->sym->type_name;
+ const char *rhs_type =
+ first_rhs->type_name ? first_rhs->type_name : "";
+ if (!UNIQSTR_EQ (lhs_type, rhs_type))
+ warn_at (r->location,
+ _("type clash on default action: <%s> != <%s>"),
+ lhs_type, rhs_type);
+ }
+ /* Warn if there is no default for $$ but we need one. */
+ else
+ warn_at (r->location,
+ _("empty rule for typed nonterminal, and no action"));
+ }
+
+ /* Check that symbol values that should be used are in fact used. */
+ {
+ symbol_list const *l = r;
+ int n = 0;
+ for (; l && l->sym; l = l->next, ++n)
+ if (! (l->used
+ || !symbol_should_be_used (l)
+ /* The default action, $$ = $1, `uses' both. */
+ || (!r->action && (n == 0 || n == 1))))
+ {
+ if (n)
+ warn_at (r->location, _("unused value: $%d"), n);
+ else
+ warn_at (r->location, _("unset value: $$"));
+ }
+ }
+}
+
+
+/*-------------------------------------.
+| End the currently being grown rule. |
+`-------------------------------------*/
+
+void
+grammar_current_rule_end (location loc)
+{
+ /* Put an empty link in the list to mark the end of this rule */
+ grammar_symbol_append (NULL, grammar_end->location);
+ current_rule->location = loc;
+ grammar_rule_check (current_rule);
+}
+
+
+/*-------------------------------------------------------------------.
+| The previous action turns out the be a mid-rule action. Attach it |
+| to the current rule, i.e., create a dummy symbol, attach it this |
+| mid-rule action, and append this dummy nonterminal to the current |
+| rule. |
+`-------------------------------------------------------------------*/
+
+void
+grammar_midrule_action (void)
+{
+ /* Since the action was written out with this rule's number, we must
+ give the new rule this number by inserting the new rule before
+ it. */
+
+ /* Make a DUMMY nonterminal, whose location is that of the midrule
+ action. Create the MIDRULE. */
+ location dummy_location = current_rule->action_location;
+ symbol *dummy = dummy_symbol_get (dummy_location);
+ symbol_list *midrule = symbol_list_new (dummy, dummy_location);
+
+ /* Make a new rule, whose body is empty, before the current one, so
+ that the action just read can belong to it. */
+ ++nrules;
+ ++nritems;
+ /* Attach its location and actions to that of the DUMMY. */
+ midrule->location = dummy_location;
+ midrule->action = current_rule->action;
+ midrule->action_location = dummy_location;
+ current_rule->action = NULL;
+ /* If $$ was used in the action, the LHS of the enclosing rule was
+ incorrectly flagged as used. */
+ midrule->used = current_rule->used;
+ current_rule->used = false;
+
+ if (previous_rule_end)
+ previous_rule_end->next = midrule;
+ else
+ grammar = midrule;
+
+ /* End the dummy's rule. */
+ midrule->next = symbol_list_new (NULL, dummy_location);
+ grammar_rule_check (midrule);
+ midrule->next->next = current_rule;
+
+ previous_rule_end = midrule->next;
+
+ /* Insert the dummy nonterminal replacing the midrule action into
+ the current rule. Bind it to its dedicated rule. */
+ grammar_current_rule_symbol_append (dummy, dummy_location);
+ grammar_end->midrule = midrule;
+}
+
+/* Set the precedence symbol of the current rule to PRECSYM. */
+
+void
+grammar_current_rule_prec_set (symbol *precsym, location loc)
+{
+ if (current_rule->ruleprec)
+ complain_at (loc, _("only one %s allowed per rule"), "%prec");
+ current_rule->ruleprec = precsym;
+}
+
+/* Attach dynamic precedence DPREC to the current rule. */
+
+void
+grammar_current_rule_dprec_set (int dprec, location loc)
+{
+ if (! glr_parser)
+ warn_at (loc, _("%s affects only GLR parsers"), "%dprec");
+ if (dprec <= 0)
+ complain_at (loc, _("%s must be followed by positive number"), "%dprec");
+ else if (current_rule->dprec != 0)
+ complain_at (loc, _("only one %s allowed per rule"), "%dprec");
+ current_rule->dprec = dprec;
+}
+
+/* Attach a merge function NAME with argument type TYPE to current
+ rule. */
+
+void
+grammar_current_rule_merge_set (uniqstr name, location loc)
+{
+ if (! glr_parser)
+ warn_at (loc, _("%s affects only GLR parsers"), "%merge");
+ if (current_rule->merger != 0)
+ complain_at (loc, _("only one %s allowed per rule"), "%merge");
+ current_rule->merger =
+ get_merge_function (name, current_rule->sym->type_name, loc);
+}
+
+/* Attach SYM to the current rule. If needed, move the previous
+ action as a mid-rule action. */
+
+void
+grammar_current_rule_symbol_append (symbol *sym, location loc)
+{
+ if (current_rule->action)
+ grammar_midrule_action ();
+ grammar_symbol_append (sym, loc);
+}
+
+/* Attach an ACTION to the current rule. */
+
+void
+grammar_current_rule_action_append (const char *action, location loc)
+{
+ /* There's no need to invoke grammar_midrule_action here, since the
+ scanner already did it if necessary. */
+ current_rule->action = action;
+ current_rule->action_location = loc;
+}
+
+
+/*---------------------------------------------------------------.
+| Convert the rules into the representation using RRHS, RLHS and |
+| RITEM. |
+`---------------------------------------------------------------*/
+
+static void
+packgram (void)
+{
+ unsigned int itemno = 0;
+ rule_number ruleno = 0;
+ symbol_list *p = grammar;
+
+ ritem = xnmalloc (nritems + 1, sizeof *ritem);
+
+ /* This sentinel is used by build_relations in gram.c. */
+ *ritem++ = 0;
+
+ rules = xnmalloc (nrules, sizeof *rules);
+
+ while (p)
+ {
+ symbol *ruleprec = p->ruleprec;
+ rules[ruleno].user_number = ruleno;
+ rules[ruleno].number = ruleno;
+ rules[ruleno].lhs = p->sym;
+ rules[ruleno].rhs = ritem + itemno;
+ rules[ruleno].prec = NULL;
+ rules[ruleno].dprec = p->dprec;
+ rules[ruleno].merger = p->merger;
+ rules[ruleno].precsym = NULL;
+ rules[ruleno].location = p->location;
+ rules[ruleno].useful = true;
+ rules[ruleno].action = p->action;
+ rules[ruleno].action_location = p->action_location;
+
+ p = p->next;
+ while (p && p->sym)
+ {
+ /* item_number = symbol_number.
+ But the former needs to contain more: negative rule numbers. */
+ ritem[itemno++] = symbol_number_as_item_number (p->sym->number);
+ /* A rule gets by default the precedence and associativity
+ of the last token in it. */
+ if (p->sym->class == token_sym && default_prec)
+ rules[ruleno].prec = p->sym;
+ if (p)
+ p = p->next;
+ }
+
+ /* If this rule has a %prec,
+ the specified symbol's precedence replaces the default. */
+ if (ruleprec)
+ {
+ rules[ruleno].precsym = ruleprec;
+ rules[ruleno].prec = ruleprec;
+ }
+ ritem[itemno++] = rule_number_as_item_number (ruleno);
+ ++ruleno;
+
+ if (p)
+ p = p->next;
+ }
+
+ assert (itemno == nritems);
+
+ if (trace_flag & trace_sets)
+ ritem_print (stderr);
+}
+
+/*------------------------------------------------------------------.
+| Read in the grammar specification and record it in the format |
+| described in gram.h. All actions are copied into ACTION_OBSTACK, |
+| in each case forming the body of a C function (YYACTION) which |
+| contains a switch statement to decide which action to execute. |
+`------------------------------------------------------------------*/
+
+void
+reader (void)
+{
+ /* Initialize the symbol table. */
+ symbols_new ();
+
+ /* Construct the accept symbol. */
+ accept = symbol_get ("$accept", empty_location);
+ accept->class = nterm_sym;
+ accept->number = nvars++;
+
+ /* Construct the error token */
+ errtoken = symbol_get ("error", empty_location);
+ errtoken->class = token_sym;
+ errtoken->number = ntokens++;
+
+ /* Construct a token that represents all undefined literal tokens.
+ It is always token number 2. */
+ undeftoken = symbol_get ("$undefined", empty_location);
+ undeftoken->class = token_sym;
+ undeftoken->number = ntokens++;
+
+ /* Initialize the obstacks. */
+ obstack_init (&pre_prologue_obstack);
+ obstack_init (&post_prologue_obstack);
+
+ gram_in = xfopen (grammar_file, "r");
+
+ gram__flex_debug = trace_flag & trace_scan;
+ gram_debug = trace_flag & trace_parse;
+ scanner_initialize ();
+ gram_parse ();
+
+ if (! complaint_issued)
+ check_and_convert_grammar ();
+
+ xfclose (gram_in);
+}
+
+
+/*-------------------------------------------------------------.
+| Check the grammar that has just been read, and convert it to |
+| internal form. |
+`-------------------------------------------------------------*/
+
+static void
+check_and_convert_grammar (void)
+{
+ /* Grammar has been read. Do some checking. */
+ if (nrules == 0)
+ fatal (_("no rules in the input grammar"));
+
+ /* Report any undefined symbols and consider them nonterminals. */
+ symbols_check_defined ();
+
+ /* If the user did not define her ENDTOKEN, do it now. */
+ if (!endtoken)
+ {
+ endtoken = symbol_get ("$end", empty_location);
+ endtoken->class = token_sym;
+ endtoken->number = 0;
+ /* Value specified by POSIX. */
+ endtoken->user_token_number = 0;
+ }
+
+ /* Insert the initial rule, whose line is that of the first rule
+ (not that of the start symbol):
+
+ accept: %start EOF. */
+ {
+ symbol_list *p = symbol_list_new (accept, empty_location);
+ p->location = grammar->location;
+ p->next = symbol_list_new (startsymbol, empty_location);
+ p->next->next = symbol_list_new (endtoken, empty_location);
+ p->next->next->next = symbol_list_new (NULL, empty_location);
+ p->next->next->next->next = grammar;
+ nrules += 1;
+ nritems += 3;
+ grammar = p;
+ }
+
+ assert (nsyms <= SYMBOL_NUMBER_MAXIMUM && nsyms == ntokens + nvars);
+
+ /* Assign the symbols their symbol numbers. Write #defines for the
+ token symbols into FDEFINES if requested. */
+ symbols_pack ();
+
+ /* Convert the grammar into the format described in gram.h. */
+ packgram ();
+
+ /* The grammar as a symbol_list is no longer needed. */
+ LIST_FREE (symbol_list, grammar);
+}
diff --git a/src/reader.h b/src/reader.h
new file mode 100644
index 0000000..f110f70
--- /dev/null
+++ b/src/reader.h
@@ -0,0 +1,87 @@
+/* Input parser for Bison
+
+ Copyright (C) 2000, 2001, 2002, 2003, 2005, 2006 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef READER_H_
+# define READER_H_
+
+# include "location.h"
+# include "symlist.h"
+
+# include "parse-gram.h"
+
+typedef struct merger_list
+{
+ struct merger_list* next;
+ uniqstr name;
+ uniqstr type;
+} merger_list;
+
+/* From the scanner. */
+extern FILE *gram_in;
+extern int gram__flex_debug;
+extern boundary scanner_cursor;
+extern char *last_string;
+extern location last_braced_code_loc;
+extern int max_left_semantic_context;
+void scanner_initialize (void);
+void scanner_free (void);
+void scanner_last_string_free (void);
+
+/* These are declared by the scanner, but not used. We put them here
+ to pacify "make syntax-check". */
+extern FILE *gram_out;
+extern int gram_lineno;
+
+# define YY_DECL int gram_lex (YYSTYPE *val, location *loc)
+YY_DECL;
+
+
+/* From the parser. */
+extern int gram_debug;
+int gram_parse (void);
+char const *token_name (int type);
+
+
+/* From reader.c. */
+void grammar_start_symbol_set (symbol *sym, location loc);
+void prologue_augment (const char *prologue, location loc);
+void grammar_current_rule_begin (symbol *lhs, location loc);
+void grammar_current_rule_end (location loc);
+void grammar_midrule_action (void);
+void grammar_current_rule_prec_set (symbol *precsym, location loc);
+void grammar_current_rule_dprec_set (int dprec, location loc);
+void grammar_current_rule_merge_set (uniqstr name, location loc);
+void grammar_current_rule_symbol_append (symbol *sym, location loc);
+void grammar_current_rule_action_append (const char *action, location loc);
+extern symbol_list *current_rule;
+void reader (void);
+void free_merger_functions (void);
+
+extern merger_list *merge_functions;
+
+/* Was %union seen? */
+extern bool typed;
+
+/* Should rules have a default precedence? */
+extern bool default_prec;
+
+#endif /* !READER_H_ */
diff --git a/src/reduce.c b/src/reduce.c
new file mode 100644
index 0000000..1bb40f0
--- /dev/null
+++ b/src/reduce.c
@@ -0,0 +1,470 @@
+/* Grammar reduction for Bison.
+
+ Copyright (C) 1988, 1989, 2000, 2001, 2002, 2003, 2005, 2006 Free
+ Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+
+/* Reduce the grammar: Find and eliminate unreachable terminals,
+ nonterminals, and productions. David S. Bakin. */
+
+/* Don't eliminate unreachable terminals: They may be used by the
+ user's parser. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitset.h>
+#include <quotearg.h>
+
+#include "complain.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "reader.h"
+#include "reduce.h"
+#include "symtab.h"
+
+/* Set of all nonterminals which are not useless. */
+static bitset N;
+
+/* Set of all rules which have no useless nonterminals in their RHS. */
+static bitset P;
+
+/* Set of all accessible symbols. */
+static bitset V;
+
+/* Set of symbols used to define rule precedence (so they are
+ `useless', but no warning should be issued). */
+static bitset V1;
+
+static rule_number nuseful_productions;
+rule_number nuseless_productions;
+static int nuseful_nonterminals;
+symbol_number nuseless_nonterminals;
+
+/*-------------------------------------------------------------------.
+| Another way to do this would be with a set for each production and |
+| then do subset tests against N0, but even for the C grammar the |
+| whole reducing process takes only 2 seconds on my 8Mhz AT. |
+`-------------------------------------------------------------------*/
+
+static bool
+useful_production (rule_number r, bitset N0)
+{
+ item_number *rhsp;
+
+ /* A production is useful if all of the nonterminals in its appear
+ in the set of useful nonterminals. */
+
+ for (rhsp = rules[r].rhs; *rhsp >= 0; ++rhsp)
+ if (ISVAR (*rhsp) && !bitset_test (N0, *rhsp - ntokens))
+ return false;
+ return true;
+}
+
+
+/*---------------------------------------------------------.
+| Remember that rules are 1-origin, symbols are 0-origin. |
+`---------------------------------------------------------*/
+
+static void
+useless_nonterminals (void)
+{
+ bitset Np, Ns;
+ rule_number r;
+
+ /* N is set as built. Np is set being built this iteration. P is
+ set of all productions which have a RHS all in N. */
+
+ Np = bitset_create (nvars, BITSET_FIXED);
+
+
+ /* The set being computed is a set of nonterminals which can derive
+ the empty string or strings consisting of all terminals. At each
+ iteration a nonterminal is added to the set if there is a
+ production with that nonterminal as its LHS for which all the
+ nonterminals in its RHS are already in the set. Iterate until
+ the set being computed remains unchanged. Any nonterminals not
+ in the set at that point are useless in that they will never be
+ used in deriving a sentence of the language.
+
+ This iteration doesn't use any special traversal over the
+ productions. A set is kept of all productions for which all the
+ nonterminals in the RHS are in useful. Only productions not in
+ this set are scanned on each iteration. At the end, this set is
+ saved to be used when finding useful productions: only
+ productions in this set will appear in the final grammar. */
+
+ while (1)
+ {
+ bitset_copy (Np, N);
+ for (r = 0; r < nrules; r++)
+ if (!bitset_test (P, r)
+ && useful_production (r, N))
+ {
+ bitset_set (Np, rules[r].lhs->number - ntokens);
+ bitset_set (P, r);
+ }
+ if (bitset_equal_p (N, Np))
+ break;
+ Ns = Np;
+ Np = N;
+ N = Ns;
+ }
+ bitset_free (N);
+ N = Np;
+}
+
+
+static void
+inaccessable_symbols (void)
+{
+ bitset Vp, Vs, Pp;
+
+ /* Find out which productions are reachable and which symbols are
+ used. Starting with an empty set of productions and a set of
+ symbols which only has the start symbol in it, iterate over all
+ productions until the set of productions remains unchanged for an
+ iteration. For each production which has a LHS in the set of
+ reachable symbols, add the production to the set of reachable
+ productions, and add all of the nonterminals in the RHS of the
+ production to the set of reachable symbols.
+
+ Consider only the (partially) reduced grammar which has only
+ nonterminals in N and productions in P.
+
+ The result is the set P of productions in the reduced grammar,
+ and the set V of symbols in the reduced grammar.
+
+ Although this algorithm also computes the set of terminals which
+ are reachable, no terminal will be deleted from the grammar. Some
+ terminals might not be in the grammar but might be generated by
+ semantic routines, and so the user might want them available with
+ specified numbers. (Is this true?) However, the nonreachable
+ terminals are printed (if running in verbose mode) so that the
+ user can know. */
+
+ Vp = bitset_create (nsyms, BITSET_FIXED);
+ Pp = bitset_create (nrules, BITSET_FIXED);
+
+ /* If the start symbol isn't useful, then nothing will be useful. */
+ if (bitset_test (N, accept->number - ntokens))
+ {
+ bitset_set (V, accept->number);
+
+ while (1)
+ {
+ rule_number r;
+ bitset_copy (Vp, V);
+ for (r = 0; r < nrules; r++)
+ {
+ if (!bitset_test (Pp, r)
+ && bitset_test (P, r)
+ && bitset_test (V, rules[r].lhs->number))
+ {
+ item_number *rhsp;
+ for (rhsp = rules[r].rhs; *rhsp >= 0; rhsp++)
+ if (ISTOKEN (*rhsp) || bitset_test (N, *rhsp - ntokens))
+ bitset_set (Vp, *rhsp);
+ bitset_set (Pp, r);
+ }
+ }
+ if (bitset_equal_p (V, Vp))
+ break;
+ Vs = Vp;
+ Vp = V;
+ V = Vs;
+ }
+ }
+
+ bitset_free (V);
+ V = Vp;
+
+ /* Tokens 0, 1, and 2 are internal to Bison. Consider them useful. */
+ bitset_set (V, endtoken->number); /* end-of-input token */
+ bitset_set (V, errtoken->number); /* error token */
+ bitset_set (V, undeftoken->number); /* some undefined token */
+
+ bitset_free (P);
+ P = Pp;
+
+ nuseful_productions = bitset_count (P);
+ nuseless_productions = nrules - nuseful_productions;
+
+ nuseful_nonterminals = 0;
+ {
+ symbol_number i;
+ for (i = ntokens; i < nsyms; i++)
+ if (bitset_test (V, i))
+ nuseful_nonterminals++;
+ }
+ nuseless_nonterminals = nvars - nuseful_nonterminals;
+
+ /* A token that was used in %prec should not be warned about. */
+ {
+ rule_number r;
+ for (r = 0; r < nrules; ++r)
+ if (rules[r].precsym != 0)
+ bitset_set (V1, rules[r].precsym->number);
+ }
+}
+
+
+/*-------------------------------------------------------------------.
+| Put the useless productions at the end of RULES, and adjust NRULES |
+| accordingly. |
+`-------------------------------------------------------------------*/
+
+static void
+reduce_grammar_tables (void)
+{
+ /* Report and flag useless productions. */
+ {
+ rule_number r;
+ for (r = 0; r < nrules; r++)
+ rules[r].useful = bitset_test (P, r);
+ grammar_rules_never_reduced_report (_("useless rule"));
+ }
+
+ /* Map the nonterminals to their new index: useful first, useless
+ afterwards. Kept for later report. */
+ {
+ int useful = 0;
+ int useless = nrules - nuseless_productions;
+ rule *rules_sorted = xnmalloc (nrules, sizeof *rules_sorted);
+ rule_number r;
+ for (r = 0; r < nrules; ++r)
+ rules_sorted[rules[r].useful ? useful++ : useless++] = rules[r];
+ free (rules);
+ rules = rules_sorted;
+
+ /* Renumber the rules markers in RITEMS. */
+ for (r = 0; r < nrules; ++r)
+ {
+ item_number *rhsp = rules[r].rhs;
+ for (/* Nothing. */; *rhsp >= 0; ++rhsp)
+ /* Nothing. */;
+ *rhsp = rule_number_as_item_number (r);
+ rules[r].number = r;
+ }
+ nrules -= nuseless_productions;
+ }
+
+ /* Adjust NRITEMS. */
+ {
+ rule_number r;
+ int length;
+ for (r = nrules; r < nrules + nuseless_productions; ++r)
+ {
+ length = rule_rhs_length (&rules[r]);
+ nritems -= length + 1;
+ }
+ }
+}
+
+
+/*------------------------------.
+| Remove useless nonterminals. |
+`------------------------------*/
+
+static void
+nonterminals_reduce (void)
+{
+ symbol_number i, n;
+
+ /* Map the nonterminals to their new index: useful first, useless
+ afterwards. Kept for later report. */
+
+ symbol_number *nontermmap = xnmalloc (nvars, sizeof *nontermmap);
+ n = ntokens;
+ for (i = ntokens; i < nsyms; i++)
+ if (bitset_test (V, i))
+ nontermmap[i - ntokens] = n++;
+ for (i = ntokens; i < nsyms; i++)
+ if (!bitset_test (V, i))
+ {
+ nontermmap[i - ntokens] = n++;
+ warn_at (symbols[i]->location, _("useless nonterminal: %s"),
+ symbols[i]->tag);
+ }
+
+
+ /* Shuffle elements of tables indexed by symbol number. */
+ {
+ symbol **symbols_sorted = xnmalloc (nvars, sizeof *symbols_sorted);
+
+ for (i = ntokens; i < nsyms; i++)
+ symbols[i]->number = nontermmap[i - ntokens];
+ for (i = ntokens; i < nsyms; i++)
+ symbols_sorted[nontermmap[i - ntokens] - ntokens] = symbols[i];
+ for (i = ntokens; i < nsyms; i++)
+ symbols[i] = symbols_sorted[i - ntokens];
+ free (symbols_sorted);
+ }
+
+ {
+ rule_number r;
+ for (r = 0; r < nrules; ++r)
+ {
+ item_number *rhsp;
+ for (rhsp = rules[r].rhs; *rhsp >= 0; ++rhsp)
+ if (ISVAR (*rhsp))
+ *rhsp = symbol_number_as_item_number (nontermmap[*rhsp
+ - ntokens]);
+ }
+ accept->number = nontermmap[accept->number - ntokens];
+ }
+
+ nsyms -= nuseless_nonterminals;
+ nvars -= nuseless_nonterminals;
+
+ free (nontermmap);
+}
+
+
+/*------------------------------------------------------------------.
+| Output the detailed results of the reductions. For FILE.output. |
+`------------------------------------------------------------------*/
+
+void
+reduce_output (FILE *out)
+{
+ if (nuseless_nonterminals > 0)
+ {
+ int i;
+ fprintf (out, "%s\n\n", _("Useless nonterminals"));
+ for (i = 0; i < nuseless_nonterminals; ++i)
+ fprintf (out, " %s\n", symbols[nsyms + i]->tag);
+ fputs ("\n\n", out);
+ }
+
+ {
+ bool b = false;
+ int i;
+ for (i = 0; i < ntokens; i++)
+ if (!bitset_test (V, i) && !bitset_test (V1, i))
+ {
+ if (!b)
+ fprintf (out, "%s\n\n", _("Terminals which are not used"));
+ b = true;
+ fprintf (out, " %s\n", symbols[i]->tag);
+ }
+ if (b)
+ fputs ("\n\n", out);
+ }
+
+ if (nuseless_productions > 0)
+ grammar_rules_partial_print (out, _("Useless rules"),
+ rule_useless_p);
+}
+
+
+
+
+
+/*-------------------------------.
+| Report the results to STDERR. |
+`-------------------------------*/
+
+static void
+reduce_print (void)
+{
+ if (yacc_flag && nuseless_productions)
+ fprintf (stderr, ngettext ("%d rule never reduced\n",
+ "%d rules never reduced\n",
+ nuseless_productions),
+ nuseless_productions);
+
+ fprintf (stderr, "%s: %s: ", grammar_file, _("warning"));
+
+ if (nuseless_nonterminals > 0)
+ fprintf (stderr, ngettext ("%d useless nonterminal",
+ "%d useless nonterminals",
+ nuseless_nonterminals),
+ nuseless_nonterminals);
+
+ if (nuseless_nonterminals > 0 && nuseless_productions > 0)
+ fprintf (stderr, _(" and "));
+
+ if (nuseless_productions > 0)
+ fprintf (stderr, ngettext ("%d useless rule",
+ "%d useless rules",
+ nuseless_productions),
+ nuseless_productions);
+ fprintf (stderr, "\n");
+}
+
+void
+reduce_grammar (void)
+{
+ bool reduced;
+
+ /* Allocate the global sets used to compute the reduced grammar */
+
+ N = bitset_create (nvars, BITSET_FIXED);
+ P = bitset_create (nrules, BITSET_FIXED);
+ V = bitset_create (nsyms, BITSET_FIXED);
+ V1 = bitset_create (nsyms, BITSET_FIXED);
+
+ useless_nonterminals ();
+ inaccessable_symbols ();
+
+ reduced = (nuseless_nonterminals + nuseless_productions > 0);
+ if (!reduced)
+ return;
+
+ reduce_print ();
+
+ if (!bitset_test (N, accept->number - ntokens))
+ fatal_at (startsymbol_location,
+ _("start symbol %s does not derive any sentence"),
+ startsymbol->tag);
+
+ /* First reduce the nonterminals, as they renumber themselves in the
+ whole grammar. If you change the order, nonterms would be
+ renumbered only in the reduced grammar. */
+ if (nuseless_nonterminals > 0)
+ nonterminals_reduce ();
+ if (nuseless_productions > 0)
+ reduce_grammar_tables ();
+
+ if (trace_flag & trace_grammar)
+ {
+ grammar_dump (stderr, "Reduced Grammar");
+
+ fprintf (stderr, "reduced %s defines %d terminals, %d nonterminals\
+, and %d productions.\n",
+ grammar_file, ntokens, nvars, nrules);
+ }
+}
+
+
+/*-----------------------------------------------------------.
+| Free the global sets used to compute the reduced grammar. |
+`-----------------------------------------------------------*/
+
+void
+reduce_free (void)
+{
+ bitset_free (N);
+ bitset_free (V);
+ bitset_free (V1);
+ bitset_free (P);
+}
diff --git a/src/reduce.h b/src/reduce.h
new file mode 100644
index 0000000..dfdab65
--- /dev/null
+++ b/src/reduce.h
@@ -0,0 +1,31 @@
+/* Grammar reduction for Bison.
+
+ Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef REDUCE_H_
+# define REDUCE_H_
+
+void reduce_grammar (void);
+void reduce_output (FILE *out);
+void reduce_free (void);
+
+extern symbol_number nuseless_nonterminals;
+extern rule_number nuseless_productions;
+#endif /* !REDUCE_H_ */
diff --git a/src/relation.c b/src/relation.c
new file mode 100644
index 0000000..1d2b42d
--- /dev/null
+++ b/src/relation.c
@@ -0,0 +1,183 @@
+/* Binary relations.
+ Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitsetv.h>
+
+#include "getargs.h"
+#include "relation.h"
+
+void
+relation_print (relation r, relation_node size, FILE *out)
+{
+ relation_node i;
+ relation_node j;
+
+ for (i = 0; i < size; ++i)
+ {
+ fprintf (out, "%3lu: ", (unsigned long int) i);
+ if (r[i])
+ for (j = 0; r[i][j] != END_NODE; ++j)
+ fprintf (out, "%3lu ", (unsigned long int) r[i][j]);
+ fputc ('\n', out);
+ }
+ fputc ('\n', out);
+}
+
+
+/*---------------------------------------------------------------.
+| digraph & traverse. |
+| |
+| The following variables are used as common storage between the |
+| two. |
+`---------------------------------------------------------------*/
+
+static relation R;
+static relation_nodes INDEX;
+static relation_nodes VERTICES;
+static relation_node top;
+static relation_node infinity;
+static bitsetv F;
+
+static void
+traverse (relation_node i)
+{
+ relation_node j;
+ relation_node height;
+
+ VERTICES[++top] = i;
+ INDEX[i] = height = top;
+
+ if (R[i])
+ for (j = 0; R[i][j] != END_NODE; ++j)
+ {
+ if (INDEX[R[i][j]] == 0)
+ traverse (R[i][j]);
+
+ if (INDEX[i] > INDEX[R[i][j]])
+ INDEX[i] = INDEX[R[i][j]];
+
+ bitset_or (F[i], F[i], F[R[i][j]]);
+ }
+
+ if (INDEX[i] == height)
+ for (;;)
+ {
+ j = VERTICES[top--];
+ INDEX[j] = infinity;
+
+ if (i == j)
+ break;
+
+ bitset_copy (F[j], F[i]);
+ }
+}
+
+
+void
+relation_digraph (relation r, relation_node size, bitsetv *function)
+{
+ relation_node i;
+
+ infinity = size + 2;
+ INDEX = xcalloc (size + 1, sizeof *INDEX);
+ VERTICES = xnmalloc (size + 1, sizeof *VERTICES);
+ top = 0;
+
+ R = r;
+ F = *function;
+
+ for (i = 0; i < size; i++)
+ if (INDEX[i] == 0 && R[i])
+ traverse (i);
+
+ free (INDEX);
+ free (VERTICES);
+
+ *function = F;
+}
+
+
+/*-------------------------------------------.
+| Destructively transpose R_ARG, of size N. |
+`-------------------------------------------*/
+
+void
+relation_transpose (relation *R_arg, relation_node n)
+{
+ relation r = *R_arg;
+ /* The result. */
+ relation new_R = xnmalloc (n, sizeof *new_R);
+ /* END_R[I] -- next entry of NEW_R[I]. */
+ relation end_R = xnmalloc (n, sizeof *end_R);
+ /* NEDGES[I] -- total size of NEW_R[I]. */
+ size_t *nedges = xcalloc (n, sizeof *nedges);
+ relation_node i;
+ relation_node j;
+
+ if (trace_flag & trace_sets)
+ {
+ fputs ("relation_transpose: input\n", stderr);
+ relation_print (r, n, stderr);
+ }
+
+ /* Count. */
+ for (i = 0; i < n; i++)
+ if (r[i])
+ for (j = 0; r[i][j] != END_NODE; ++j)
+ ++nedges[r[i][j]];
+
+ /* Allocate. */
+ for (i = 0; i < n; i++)
+ {
+ relation_node *sp = NULL;
+ if (nedges[i] > 0)
+ {
+ sp = xnmalloc (nedges[i] + 1, sizeof *sp);
+ sp[nedges[i]] = END_NODE;
+ }
+ new_R[i] = sp;
+ end_R[i] = sp;
+ }
+
+ /* Store. */
+ for (i = 0; i < n; i++)
+ if (r[i])
+ for (j = 0; r[i][j] != END_NODE; ++j)
+ *end_R[r[i][j]]++ = i;
+
+ free (nedges);
+ free (end_R);
+
+ /* Free the input: it is replaced with the result. */
+ for (i = 0; i < n; i++)
+ free (r[i]);
+ free (r);
+
+ if (trace_flag & trace_sets)
+ {
+ fputs ("relation_transpose: output\n", stderr);
+ relation_print (new_R, n, stderr);
+ }
+
+ *R_arg = new_R;
+}
diff --git a/src/relation.h b/src/relation.h
new file mode 100644
index 0000000..479e42e
--- /dev/null
+++ b/src/relation.h
@@ -0,0 +1,50 @@
+/* Binary relations.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+
+#ifndef RELATION_H_
+# define RELATION_H_
+
+/* Performing operations on graphs coded as list of adjacency.
+
+ If GRAPH is a relation, then GRAPH[Node] is a list of adjacent
+ nodes, ended with END_NODE. */
+
+#define END_NODE ((relation_node) -1)
+
+typedef size_t relation_node;
+typedef relation_node *relation_nodes;
+typedef relation_nodes *relation;
+
+
+/* Report a relation R that has SIZE vertices. */
+void relation_print (relation r, relation_node size, FILE *out);
+
+/* Compute the transitive closure of the FUNCTION on the relation R
+ with SIZE vertices.
+
+ If R (NODE-1, NODE-2) then on exit FUNCTION[NODE - 1] was extended
+ (unioned) with FUNCTION[NODE - 2]. */
+void relation_digraph (relation r, relation_node size, bitsetv *function);
+
+/* Destructively transpose *R_ARG, of size N. */
+void relation_transpose (relation *R_arg, relation_node n);
+
+#endif /* ! RELATION_H_ */
diff --git a/src/scan-gram-c.c b/src/scan-gram-c.c
new file mode 100644
index 0000000..8f12e2c
--- /dev/null
+++ b/src/scan-gram-c.c
@@ -0,0 +1,2 @@
+#include <config.h>
+#include "scan-gram.c"
diff --git a/src/scan-gram.c b/src/scan-gram.c
new file mode 100644
index 0000000..04cf539
--- /dev/null
+++ b/src/scan-gram.c
@@ -0,0 +1,3822 @@
+#line 2 "scan-gram.c"
+
+#line 4 "scan-gram.c"
+
+#define YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 31
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* %if-c++-only */
+/* %endif */
+
+/* %if-c-only */
+
+/* %endif */
+
+/* %if-c-only */
+
+/* %endif */
+
+/* First, we deal with platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+/* %if-c-only */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+/* %endif */
+
+/* %if-tables-serialization */
+/* %endif */
+/* end standard C headers. */
+
+/* %if-c-or-c++ */
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t;
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX (4294967295U)
+#endif
+
+#endif /* ! FLEXINT_H */
+
+/* %endif */
+
+/* %if-c++-only */
+/* %endif */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else /* ! __cplusplus */
+
+#if __STDC__
+
+#define YY_USE_CONST
+
+#endif /* __STDC__ */
+#endif /* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* %not-for-header */
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+/* %ok-for-header */
+
+/* %not-for-header */
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index. If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+/* %ok-for-header */
+
+/* %if-reentrant */
+/* %endif */
+
+/* %if-not-reentrant */
+
+/* %endif */
+
+/* Enter a start condition. This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN (yy_start) = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state. The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START (((yy_start) - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE gram_restart(gram_in )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+/* %if-not-reentrant */
+extern int gram_leng;
+/* %endif */
+
+/* %if-c-only */
+/* %if-not-reentrant */
+extern FILE *gram_in, *gram_out;
+/* %endif */
+/* %endif */
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+ #define YY_LESS_LINENO(n)
+
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up gram_text. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ *yy_cp = (yy_hold_char); \
+ YY_RESTORE_YY_MORE_OFFSET \
+ (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+ YY_DO_BEFORE_ACTION; /* set up gram_text again */ \
+ } \
+ while ( 0 )
+
+#define unput(c) yyunput( c, (yytext_ptr) )
+
+/* The following is because we cannot portably get our hands on size_t
+ * (without autoconf's help, which isn't available because we want
+ * flex-generated scanners to compile on their own).
+ */
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef unsigned int yy_size_t;
+#endif
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+ {
+/* %if-c-only */
+ FILE *yy_input_file;
+/* %endif */
+
+/* %if-c++-only */
+/* %endif */
+
+ char *yy_ch_buf; /* input buffer */
+ char *yy_buf_pos; /* current position in input buffer */
+
+ /* Size of input buffer in bytes, not including room for EOB
+ * characters.
+ */
+ yy_size_t yy_buf_size;
+
+ /* Number of characters read into yy_ch_buf, not including EOB
+ * characters.
+ */
+ int yy_n_chars;
+
+ /* Whether we "own" the buffer - i.e., we know we created it,
+ * and can realloc() it to grow it, and should free() it to
+ * delete it.
+ */
+ int yy_is_our_buffer;
+
+ /* Whether this is an "interactive" input source; if so, and
+ * if we're using stdio for input, then we want to use getc()
+ * instead of fread(), to make sure we stop fetching input after
+ * each newline.
+ */
+ int yy_is_interactive;
+
+ /* Whether we're considered to be at the beginning of a line.
+ * If so, '^' rules will be active on the next match, otherwise
+ * not.
+ */
+ int yy_at_bol;
+
+ int yy_bs_lineno; /**< The line count. */
+ int yy_bs_column; /**< The column count. */
+
+ /* Whether to try to fill the input buffer when we reach the
+ * end of it.
+ */
+ int yy_fill_buffer;
+
+ int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+ /* When an EOF's been seen but there's still some text to process
+ * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+ * shouldn't try reading from the input source any more. We might
+ * still have a bunch of tokens to match, though, because of
+ * possible backing-up.
+ *
+ * When we actually see the EOF, we change the status to "new"
+ * (via gram_restart()), so that the user can continue scanning by
+ * just pointing gram_in at a new input file.
+ */
+#define YY_BUFFER_EOF_PENDING 2
+
+ };
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* %if-c-only Standard (non-C++) definition */
+/* %not-for-header */
+
+/* %if-not-reentrant */
+
+/* Stack of input buffers. */
+static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
+static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
+static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
+/* %endif */
+/* %ok-for-header */
+
+/* %endif */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
+ ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
+ : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
+
+/* %if-c-only Standard (non-C++) definition */
+
+/* %if-not-reentrant */
+/* %not-for-header */
+
+/* yy_hold_char holds the character lost when gram_text is formed. */
+static char yy_hold_char;
+static int yy_n_chars; /* number of characters read into yy_ch_buf */
+int gram_leng;
+
+/* Points to current character in buffer. */
+static char *yy_c_buf_p = (char *) 0;
+static int yy_init = 1; /* whether we need to initialize */
+static int yy_start = 0; /* start state number */
+
+/* Flag which is used to allow gram_wrap()'s to do buffer switches
+ * instead of setting up a fresh gram_in. A bit of a hack ...
+ */
+static int yy_did_buffer_switch_on_eof;
+/* %ok-for-header */
+
+/* %endif */
+
+void gram_restart (FILE *input_file );
+void gram__switch_to_buffer (YY_BUFFER_STATE new_buffer );
+YY_BUFFER_STATE gram__create_buffer (FILE *file,int size );
+void gram__delete_buffer (YY_BUFFER_STATE b );
+void gram__flush_buffer (YY_BUFFER_STATE b );
+void gram_push_buffer_state (YY_BUFFER_STATE new_buffer );
+void gram_pop_buffer_state (void );
+
+static void gram_ensure_buffer_stack (void );
+static void gram__load_buffer_state (void );
+static void gram__init_buffer (YY_BUFFER_STATE b,FILE *file );
+
+#define YY_FLUSH_BUFFER gram__flush_buffer(YY_CURRENT_BUFFER )
+
+YY_BUFFER_STATE gram__scan_buffer (char *base,yy_size_t size );
+YY_BUFFER_STATE gram__scan_string (yyconst char *yy_str );
+YY_BUFFER_STATE gram__scan_bytes (yyconst char *bytes,int len );
+
+/* %endif */
+
+void *gram_alloc (yy_size_t );
+void *gram_realloc (void *,yy_size_t );
+void gram_free (void * );
+
+#define yy_new_buffer gram__create_buffer
+
+#define yy_set_interactive(is_interactive) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){ \
+ gram_ensure_buffer_stack (); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ gram__create_buffer(gram_in,YY_BUF_SIZE ); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+ }
+
+#define yy_set_bol(at_bol) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){\
+ gram_ensure_buffer_stack (); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ gram__create_buffer(gram_in,YY_BUF_SIZE ); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+ }
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* %% [1.0] gram_text/gram_in/gram_out/yy_state_type/gram_lineno etc. def's & init go here */
+/* Begin user sect3 */
+
+#define gram_wrap(n) 1
+#define YY_SKIP_YYWRAP
+
+#define FLEX_DEBUG
+
+typedef unsigned char YY_CHAR;
+
+FILE *gram_in = (FILE *) 0, *gram_out = (FILE *) 0;
+
+typedef int yy_state_type;
+
+extern int gram_lineno;
+
+int gram_lineno = 1;
+
+extern char *gram_text;
+#define yytext_ptr gram_text
+
+/* %if-c-only Standard (non-C++) definition */
+
+static yy_state_type yy_get_previous_state (void );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state );
+static int yy_get_next_buffer (void );
+static void yy_fatal_error (yyconst char msg[] );
+
+/* %endif */
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up gram_text.
+ */
+#define YY_DO_BEFORE_ACTION \
+ (yytext_ptr) = yy_bp; \
+/* %% [2.0] code to fiddle gram_text and gram_leng for yymore() goes here \ */\
+ gram_leng = (size_t) (yy_cp - yy_bp); \
+ (yy_hold_char) = *yy_cp; \
+ *yy_cp = '\0'; \
+/* %% [3.0] code to copy yytext_ptr to gram_text[] goes here, if %array \ */\
+ (yy_c_buf_p) = yy_cp;
+
+/* %% [4.0] data tables for the DFA and the user's section 1 definitions go here */
+#define YY_NUM_RULES 109
+#define YY_END_OF_BUFFER 110
+/* This struct is not used in this scanner,
+ but its presence is necessary. */
+struct yy_trans_info
+ {
+ flex_int32_t yy_verify;
+ flex_int32_t yy_nxt;
+ };
+static yyconst flex_int16_t yy_accept[461] =
+ { 0,
+ 0, 0, 0, 0, 66, 66, 0, 0, 84, 84,
+ 84, 84, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 110, 59, 2, 2,
+ 54, 59, 53, 1, 50, 59, 51, 51, 49, 59,
+ 47, 56, 48, 59, 107, 108, 103, 107, 104, 105,
+ 106, 65, 107, 63, 63, 88, 87, 107, 86, 85,
+ 61, 2, 1, 61, 60, 61, 68, 67, 107, 71,
+ 70, 69, 93, 2, 1, 93, 93, 90, 100, 107,
+ 89, 107, 107, 101, 94, 96, 107, 58, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+
+ 46, 46, 46, 46, 46, 46, 55, 50, 4, 3,
+ 51, 0, 0, 0, 64, 0, 0, 66, 62, 84,
+ 84, 84, 84, 83, 81, 72, 83, 74, 75, 76,
+ 77, 78, 79, 83, 80, 83, 98, 0, 98, 0,
+ 95, 0, 91, 92, 0, 94, 97, 0, 99, 0,
+ 99, 102, 46, 46, 46, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+ 46, 3, 52, 57, 0, 0, 0, 0, 0, 0,
+ 0, 0, 72, 0, 0, 73, 0, 0, 0, 0,
+
+ 0, 0, 0, 46, 46, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 0, 72, 0,
+ 0, 0, 46, 46, 46, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 20, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 32, 46, 46, 46,
+ 46, 46, 46, 39, 46, 42, 46, 46, 45, 0,
+ 0, 0, 46, 7, 46, 46, 46, 12, 46, 46,
+ 46, 46, 46, 46, 46, 46, 23, 46, 46, 46,
+
+ 46, 46, 29, 46, 46, 46, 46, 46, 36, 46,
+ 38, 40, 43, 46, 0, 0, 82, 6, 46, 9,
+ 46, 46, 14, 46, 46, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 30, 46, 46, 46, 46, 46,
+ 46, 46, 0, 46, 10, 46, 46, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+ 33, 46, 35, 46, 46, 44, 0, 46, 46, 46,
+ 46, 46, 46, 46, 46, 46, 46, 46, 46, 26,
+ 27, 46, 46, 46, 37, 46, 0, 46, 46, 46,
+ 15, 46, 46, 46, 46, 21, 22, 46, 46, 46,
+
+ 46, 46, 46, 0, 0, 46, 11, 46, 46, 46,
+ 19, 46, 46, 46, 46, 46, 46, 46, 5, 46,
+ 46, 16, 46, 46, 24, 46, 46, 31, 34, 41,
+ 8, 46, 46, 46, 46, 46, 13, 46, 46, 46,
+ 46, 46, 18, 46, 46, 46, 25, 46, 46, 46,
+ 46, 46, 17, 46, 46, 46, 46, 46, 28, 0
+ } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
+ 2, 2, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 4, 1, 5, 6, 7, 8, 1, 9, 1,
+ 1, 10, 1, 11, 12, 13, 14, 15, 16, 16,
+ 16, 16, 16, 16, 16, 17, 17, 18, 19, 20,
+ 21, 22, 23, 24, 25, 25, 25, 25, 25, 25,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 26, 13, 13, 27, 13, 13,
+ 28, 29, 30, 1, 31, 1, 32, 33, 34, 35,
+
+ 36, 37, 38, 39, 40, 13, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 13, 53,
+ 54, 13, 55, 56, 57, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1
+ } ;
+
+static yyconst flex_int32_t yy_meta[59] =
+ { 0,
+ 1, 1, 2, 1, 1, 1, 3, 1, 1, 1,
+ 1, 4, 5, 1, 6, 6, 6, 1, 1, 1,
+ 1, 7, 1, 3, 6, 5, 5, 3, 1, 3,
+ 5, 6, 6, 6, 6, 6, 6, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 1, 1, 1, 7
+ } ;
+
+static yyconst flex_int16_t yy_base[483] =
+ { 0,
+ 0, 733, 56, 57, 65, 68, 728, 727, 96, 99,
+ 106, 109, 138, 144, 85, 102, 142, 150, 161, 174,
+ 206, 0, 162, 182, 220, 225, 736, 740, 740, 740,
+ 740, 275, 740, 740, 0, 51, 176, 61, 740, 0,
+ 740, 740, 740, 693, 740, 740, 740, 103, 740, 740,
+ 740, 740, 164, 740, 720, 740, 740, 192, 740, 740,
+ 740, 740, 740, 59, 740, 691, 740, 740, 326, 740,
+ 740, 740, 740, 740, 740, 60, 690, 740, 231, 132,
+ 740, 187, 71, 243, 740, 740, 674, 740, 0, 690,
+ 75, 151, 689, 686, 683, 74, 690, 173, 674, 220,
+
+ 147, 157, 220, 680, 687, 690, 740, 0, 740, 0,
+ 269, 0, 699, 680, 740, 287, 290, 690, 740, 740,
+ 293, 689, 301, 740, 740, 67, 0, 740, 740, 740,
+ 740, 740, 740, 0, 740, 0, 740, 317, 321, 0,
+ 740, 341, 740, 740, 344, 740, 740, 358, 740, 349,
+ 352, 740, 0, 673, 220, 668, 667, 668, 131, 665,
+ 672, 188, 677, 662, 666, 223, 672, 657, 658, 226,
+ 657, 657, 665, 666, 669, 652, 658, 652, 657, 648,
+ 661, 0, 0, 740, 650, 369, 250, 378, 381, 384,
+ 387, 269, 324, 0, 0, 0, 671, 390, 152, 393,
+
+ 388, 397, 202, 660, 640, 238, 640, 653, 643, 651,
+ 650, 649, 672, 633, 632, 669, 648, 641, 642, 315,
+ 241, 629, 630, 626, 640, 629, 636, 620, 631, 627,
+ 620, 624, 630, 629, 619, 630, 628, 625, 740, 0,
+ 0, 396, 612, 621, 607, 613, 608, 621, 606, 619,
+ 640, 616, 604, 609, 0, 602, 597, 610, 344, 609,
+ 604, 594, 606, 598, 589, 603, 0, 588, 392, 597,
+ 586, 599, 584, 0, 589, 0, 588, 586, 0, 626,
+ 0, 0, 575, 0, 586, 591, 575, 0, 393, 575,
+ 578, 394, 591, 590, 589, 580, 0, 573, 581, 573,
+
+ 567, 565, 0, 564, 601, 576, 565, 562, 0, 559,
+ 0, 395, 0, 559, 399, 0, 740, 0, 557, 557,
+ 571, 552, 397, 555, 557, 553, 558, 551, 553, 549,
+ 564, 559, 549, 557, 0, 546, 543, 558, 553, 543,
+ 537, 550, 414, 407, 0, 535, 548, 535, 546, 530,
+ 531, 567, 546, 533, 540, 524, 525, 539, 524, 539,
+ 0, 522, 0, 525, 536, 0, 562, 520, 520, 516,
+ 515, 525, 511, 524, 527, 515, 508, 519, 513, 0,
+ 0, 511, 505, 503, 0, 518, 545, 501, 500, 514,
+ 0, 506, 499, 496, 509, 0, 0, 502, 491, 500,
+
+ 507, 502, 495, 531, 348, 499, 0, 489, 480, 481,
+ 0, 481, 477, 408, 485, 485, 479, 490, 740, 491,
+ 475, 0, 473, 482, 0, 475, 480, 0, 0, 0,
+ 0, 483, 409, 473, 469, 467, 0, 478, 470, 472,
+ 452, 455, 0, 445, 432, 395, 0, 402, 399, 422,
+ 384, 386, 0, 395, 374, 361, 318, 251, 0, 740,
+ 440, 447, 454, 461, 464, 470, 476, 483, 487, 493,
+ 281, 275, 236, 218, 500, 206, 151, 138, 116, 102,
+ 56, 506
+ } ;
+
+static yyconst flex_int16_t yy_def[483] =
+ { 0,
+ 460, 1, 461, 461, 461, 461, 462, 462, 461, 461,
+ 461, 461, 463, 463, 461, 461, 461, 461, 464, 464,
+ 461, 21, 21, 21, 21, 21, 460, 460, 460, 460,
+ 460, 460, 460, 460, 465, 460, 460, 460, 460, 466,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 467, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 468, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+
+ 469, 469, 469, 469, 469, 469, 460, 465, 460, 470,
+ 460, 471, 466, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 472, 460, 460, 460,
+ 460, 460, 460, 473, 460, 474, 460, 460, 460, 475,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 470, 471, 460, 460, 460, 460, 460, 460, 460,
+ 460, 467, 460, 476, 477, 474, 475, 460, 460, 460,
+
+ 460, 460, 460, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 460, 460, 478,
+ 479, 460, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 460,
+ 480, 481, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 460, 473, 460, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 460, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 460, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 482, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+
+ 469, 469, 469, 482, 482, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 460, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 469,
+ 469, 469, 469, 469, 469, 469, 469, 469, 469, 0,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460
+ } ;
+
+static yyconst flex_int16_t yy_nxt[799] =
+ { 0,
+ 28, 29, 30, 29, 31, 28, 28, 32, 33, 28,
+ 34, 28, 35, 36, 37, 38, 38, 28, 39, 40,
+ 41, 28, 28, 28, 35, 35, 35, 28, 28, 28,
+ 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
+ 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
+ 35, 35, 35, 35, 42, 43, 28, 28, 46, 46,
+ 109, 317, 47, 47, 110, 48, 48, 52, 109, 109,
+ 52, 47, 110, 110, 47, 111, 111, 111, 146, 49,
+ 49, 193, 193, 50, 50, 51, 51, 67, 49, 68,
+ 147, 49, 50, 53, 51, 50, 53, 51, 56, 148,
+
+ 57, 56, 47, 57, 67, 47, 68, 316, 59, 162,
+ 155, 59, 47, 69, 60, 47, 115, 60, 163, 49,
+ 156, 282, 49, 50, 58, 51, 50, 58, 51, 49,
+ 69, 116, 49, 50, 58, 51, 50, 58, 51, 62,
+ 30, 62, 70, 281, 71, 62, 30, 62, 63, 66,
+ 72, 64, 71, 141, 63, 65, 241, 64, 72, 70,
+ 142, 65, 74, 30, 74, 117, 118, 117, 47, 87,
+ 69, 75, 211, 141, 76, 74, 30, 74, 69, 77,
+ 142, 45, 172, 212, 75, 49, 173, 76, 47, 87,
+ 111, 111, 111, 121, 122, 121, 143, 174, 157, 70,
+
+ 144, 45, 112, 158, 165, 49, 175, 70, 46, 146,
+ 78, 240, 79, 80, 81, 145, 45, 166, 45, 82,
+ 123, 147, 167, 196, 215, 83, 47, 45, 112, 84,
+ 148, 47, 45, 50, 220, 51, 45, 137, 45, 45,
+ 216, 195, 138, 49, 45, 139, 139, 139, 49, 149,
+ 140, 169, 205, 220, 150, 176, 206, 151, 151, 151,
+ 85, 225, 86, 115, 177, 226, 221, 170, 207, 245,
+ 171, 460, 262, 178, 45, 263, 45, 246, 116, 45,
+ 194, 45, 88, 111, 111, 111, 183, 89, 186, 187,
+ 186, 117, 118, 117, 189, 122, 189, 123, 459, 89,
+
+ 89, 89, 191, 192, 191, 89, 89, 90, 89, 91,
+ 92, 93, 94, 89, 95, 89, 96, 97, 98, 99,
+ 100, 89, 101, 102, 103, 104, 105, 89, 106, 107,
+ 125, 139, 139, 139, 125, 139, 139, 139, 239, 239,
+ 126, 126, 198, 199, 198, 200, 201, 200, 125, 260,
+ 419, 127, 405, 458, 125, 298, 261, 128, 129, 202,
+ 203, 202, 130, 151, 151, 151, 151, 151, 151, 131,
+ 186, 187, 186, 132, 298, 133, 134, 135, 136, 117,
+ 118, 117, 189, 122, 189, 189, 122, 189, 191, 192,
+ 191, 198, 199, 198, 200, 201, 200, 143, 202, 203,
+
+ 202, 144, 137, 307, 322, 325, 341, 138, 348, 457,
+ 139, 139, 139, 343, 343, 343, 145, 367, 368, 426,
+ 438, 456, 307, 322, 325, 341, 455, 348, 343, 343,
+ 343, 454, 453, 452, 451, 450, 449, 368, 426, 438,
+ 45, 45, 45, 45, 45, 45, 45, 54, 54, 54,
+ 54, 54, 54, 54, 61, 61, 61, 61, 61, 61,
+ 61, 73, 73, 73, 73, 73, 73, 73, 108, 108,
+ 113, 448, 113, 113, 113, 113, 120, 120, 447, 120,
+ 120, 120, 120, 124, 124, 124, 124, 124, 124, 124,
+ 153, 153, 153, 182, 446, 182, 182, 182, 182, 182,
+
+ 197, 445, 197, 197, 197, 197, 404, 444, 404, 404,
+ 404, 404, 404, 443, 442, 441, 440, 439, 437, 436,
+ 435, 434, 433, 432, 431, 430, 429, 428, 427, 425,
+ 424, 423, 422, 421, 420, 405, 418, 417, 416, 415,
+ 414, 413, 412, 411, 410, 409, 408, 407, 406, 405,
+ 403, 402, 401, 400, 399, 398, 397, 396, 395, 394,
+ 393, 392, 391, 390, 389, 388, 387, 386, 385, 384,
+ 383, 382, 381, 380, 379, 378, 377, 376, 375, 374,
+ 373, 372, 371, 370, 369, 366, 365, 364, 363, 362,
+ 361, 360, 359, 358, 357, 356, 355, 354, 353, 352,
+
+ 351, 350, 349, 347, 346, 345, 344, 342, 340, 339,
+ 338, 337, 336, 335, 334, 333, 332, 331, 330, 329,
+ 328, 327, 326, 324, 323, 321, 320, 319, 318, 315,
+ 314, 313, 312, 311, 310, 309, 308, 306, 305, 304,
+ 303, 302, 301, 300, 299, 297, 296, 295, 294, 293,
+ 292, 291, 290, 289, 288, 287, 286, 285, 284, 283,
+ 280, 279, 278, 277, 276, 275, 274, 273, 272, 271,
+ 270, 269, 268, 267, 266, 265, 264, 259, 258, 257,
+ 256, 255, 254, 253, 252, 251, 250, 249, 248, 247,
+ 244, 243, 242, 238, 237, 236, 235, 234, 233, 232,
+
+ 231, 230, 229, 228, 227, 224, 223, 222, 219, 218,
+ 217, 214, 213, 210, 209, 208, 204, 190, 188, 185,
+ 184, 181, 180, 179, 168, 164, 161, 160, 159, 154,
+ 152, 114, 114, 119, 114, 460, 55, 55, 44, 27,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460
+
+ } ;
+
+static yyconst flex_int16_t yy_chk[799] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 3, 4,
+ 36, 481, 3, 4, 36, 3, 4, 5, 64, 76,
+ 6, 5, 64, 76, 6, 38, 38, 38, 83, 3,
+ 4, 126, 126, 3, 4, 3, 4, 15, 5, 15,
+ 83, 6, 5, 5, 5, 6, 6, 6, 9, 83,
+
+ 9, 10, 9, 10, 16, 10, 16, 480, 11, 96,
+ 91, 12, 11, 15, 11, 12, 48, 12, 96, 9,
+ 91, 479, 10, 9, 9, 9, 10, 10, 10, 11,
+ 16, 48, 12, 11, 11, 11, 12, 12, 12, 13,
+ 13, 13, 15, 478, 17, 14, 14, 14, 13, 14,
+ 17, 13, 18, 80, 14, 13, 477, 14, 18, 16,
+ 80, 14, 19, 19, 19, 53, 53, 53, 23, 23,
+ 17, 19, 159, 199, 19, 20, 20, 20, 18, 20,
+ 199, 23, 101, 159, 20, 23, 101, 20, 24, 24,
+ 37, 37, 37, 58, 58, 58, 82, 102, 92, 17,
+
+ 82, 24, 37, 92, 98, 24, 102, 18, 21, 203,
+ 21, 476, 21, 21, 21, 82, 23, 98, 23, 21,
+ 58, 203, 98, 474, 162, 21, 25, 25, 37, 21,
+ 203, 26, 26, 21, 166, 21, 24, 79, 24, 25,
+ 162, 473, 79, 25, 26, 79, 79, 79, 26, 84,
+ 79, 100, 155, 166, 84, 103, 155, 84, 84, 84,
+ 21, 170, 21, 187, 103, 170, 166, 100, 155, 206,
+ 100, 192, 221, 103, 25, 221, 25, 206, 187, 26,
+ 472, 26, 32, 111, 111, 111, 471, 32, 116, 116,
+ 116, 117, 117, 117, 121, 121, 121, 192, 458, 32,
+
+ 32, 32, 123, 123, 123, 32, 32, 32, 32, 32,
+ 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
+ 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
+ 69, 138, 138, 138, 69, 139, 139, 139, 193, 193,
+ 69, 69, 142, 142, 142, 145, 145, 145, 69, 220,
+ 405, 69, 405, 457, 69, 259, 220, 69, 69, 148,
+ 148, 148, 69, 150, 150, 150, 151, 151, 151, 69,
+ 186, 186, 186, 69, 259, 69, 69, 69, 69, 188,
+ 188, 188, 189, 189, 189, 190, 190, 190, 191, 191,
+ 191, 198, 198, 198, 200, 200, 200, 201, 202, 202,
+
+ 202, 201, 242, 269, 289, 292, 312, 242, 323, 456,
+ 242, 242, 242, 315, 315, 315, 201, 343, 344, 414,
+ 433, 455, 269, 289, 292, 312, 454, 323, 343, 343,
+ 343, 452, 451, 450, 449, 448, 446, 344, 414, 433,
+ 461, 461, 461, 461, 461, 461, 461, 462, 462, 462,
+ 462, 462, 462, 462, 463, 463, 463, 463, 463, 463,
+ 463, 464, 464, 464, 464, 464, 464, 464, 465, 465,
+ 466, 445, 466, 466, 466, 466, 467, 467, 444, 467,
+ 467, 467, 467, 468, 468, 468, 468, 468, 468, 468,
+ 469, 469, 469, 470, 442, 470, 470, 470, 470, 470,
+
+ 475, 441, 475, 475, 475, 475, 482, 440, 482, 482,
+ 482, 482, 482, 439, 438, 436, 435, 434, 432, 427,
+ 426, 424, 423, 421, 420, 418, 417, 416, 415, 413,
+ 412, 410, 409, 408, 406, 404, 403, 402, 401, 400,
+ 399, 398, 395, 394, 393, 392, 390, 389, 388, 387,
+ 386, 384, 383, 382, 379, 378, 377, 376, 375, 374,
+ 373, 372, 371, 370, 369, 368, 367, 365, 364, 362,
+ 360, 359, 358, 357, 356, 355, 354, 353, 352, 351,
+ 350, 349, 348, 347, 346, 342, 341, 340, 339, 338,
+ 337, 336, 334, 333, 332, 331, 330, 329, 328, 327,
+
+ 326, 325, 324, 322, 321, 320, 319, 314, 310, 308,
+ 307, 306, 305, 304, 302, 301, 300, 299, 298, 296,
+ 295, 294, 293, 291, 290, 287, 286, 285, 283, 280,
+ 278, 277, 275, 273, 272, 271, 270, 268, 266, 265,
+ 264, 263, 262, 261, 260, 258, 257, 256, 254, 253,
+ 252, 251, 250, 249, 248, 247, 246, 245, 244, 243,
+ 238, 237, 236, 235, 234, 233, 232, 231, 230, 229,
+ 228, 227, 226, 225, 224, 223, 222, 219, 218, 217,
+ 216, 215, 214, 213, 212, 211, 210, 209, 208, 207,
+ 205, 204, 197, 185, 181, 180, 179, 178, 177, 176,
+
+ 175, 174, 173, 172, 171, 169, 168, 167, 165, 164,
+ 163, 161, 160, 158, 157, 156, 154, 122, 118, 114,
+ 113, 106, 105, 104, 99, 97, 95, 94, 93, 90,
+ 87, 77, 66, 55, 44, 27, 8, 7, 2, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460, 460, 460,
+ 460, 460, 460, 460, 460, 460, 460, 460
+
+ } ;
+
+static yy_state_type yy_last_accepting_state;
+static char *yy_last_accepting_cpos;
+
+extern int gram__flex_debug;
+int gram__flex_debug = 1;
+
+static yyconst flex_int16_t yy_rule_linenum[109] =
+ { 0,
+ 197, 198, 199, 200, 208, 219, 220, 221, 222, 223,
+ 224, 225, 226, 227, 228, 229, 230, 231, 232, 233,
+ 234, 235, 236, 237, 238, 239, 240, 241, 242, 243,
+ 244, 245, 246, 247, 248, 249, 250, 251, 252, 253,
+ 254, 255, 256, 257, 258, 260, 264, 265, 266, 268,
+ 275, 279, 285, 288, 291, 294, 305, 313, 320, 337,
+ 343, 364, 365, 376, 387, 388, 400, 408, 419, 435,
+ 441, 451, 461, 472, 473, 474, 475, 476, 477, 478,
+ 481, 483, 492, 504, 509, 510, 516, 517, 528, 534,
+ 540, 546, 562, 596, 597, 598, 634, 636, 637, 639,
+
+ 643, 658, 693, 694, 695, 696, 704, 705
+ } ;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+char *gram_text;
+#line 1 "scan-gram.l"
+/* Bison Grammar Scanner -*- C -*-
+
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301 USA
+*/
+#line 27 "scan-gram.l"
+/* Work around a bug in flex 2.5.31. See Debian bug 333231
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>. */
+#undef gram_wrap
+#define gram_wrap() 1
+
+#include "system.h"
+
+#include <mbswidth.h>
+#include <quote.h>
+
+#include "complain.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "quotearg.h"
+#include "reader.h"
+#include "uniqstr.h"
+
+#define YY_USER_INIT \
+ do \
+ { \
+ scanner_cursor.file = current_file; \
+ scanner_cursor.line = 1; \
+ scanner_cursor.column = 1; \
+ code_start = scanner_cursor; \
+ } \
+ while (0)
+
+/* Pacify "gcc -Wmissing-prototypes" when flex 2.5.31 is used. */
+int gram_get_lineno (void);
+FILE *gram_get_in (void);
+FILE *gram_get_out (void);
+int gram_get_leng (void);
+char *gram_get_text (void);
+void gram_set_lineno (int);
+void gram_set_in (FILE *);
+void gram_set_out (FILE *);
+int gram_get_debug (void);
+void gram_set_debug (int);
+int gram_lex_destroy (void);
+
+/* Location of scanner cursor. */
+boundary scanner_cursor;
+
+static void adjust_location (location *, char const *, size_t);
+#define YY_USER_ACTION adjust_location (loc, gram_text, gram_leng);
+
+static size_t no_cr_read (FILE *, char *, size_t);
+#define YY_INPUT(buf, result, size) ((result) = no_cr_read (gram_in, buf, size))
+
+
+/* OBSTACK_FOR_STRING -- Used to store all the characters that we need to
+ keep (to construct ID, STRINGS etc.). Use the following macros to
+ use it.
+
+ Use STRING_GROW to append what has just been matched, and
+ STRING_FINISH to end the string (it puts the ending 0).
+ STRING_FINISH also stores this string in LAST_STRING, which can be
+ used, and which is used by STRING_FREE to free the last string. */
+
+static struct obstack obstack_for_string;
+
+/* A string representing the most recently saved token. */
+char *last_string;
+
+/* The location of the most recently saved token, if it was a
+ BRACED_CODE token; otherwise, this has an unspecified value. */
+location last_braced_code_loc;
+
+#define STRING_GROW \
+ obstack_grow (&obstack_for_string, gram_text, gram_leng)
+
+#define STRING_FINISH \
+ do { \
+ obstack_1grow (&obstack_for_string, '\0'); \
+ last_string = obstack_finish (&obstack_for_string); \
+ } while (0)
+
+#define STRING_FREE \
+ obstack_free (&obstack_for_string, last_string)
+
+void
+scanner_last_string_free (void)
+{
+ STRING_FREE;
+}
+
+/* Within well-formed rules, RULE_LENGTH is the number of values in
+ the current rule so far, which says where to find `$0' with respect
+ to the top of the stack. It is not the same as the rule->length in
+ the case of mid rule actions.
+
+ Outside of well-formed rules, RULE_LENGTH has an undefined value. */
+static int rule_length;
+
+static void rule_length_overflow (location) __attribute__ ((__noreturn__));
+
+/* Increment the rule length by one, checking for overflow. */
+static inline void
+increment_rule_length (location loc)
+{
+ rule_length++;
+
+ /* Don't allow rule_length == INT_MAX, since that might cause
+ confusion with strtol if INT_MAX == LONG_MAX. */
+ if (rule_length == INT_MAX)
+ rule_length_overflow (loc);
+}
+
+static void handle_dollar (int token_type, char *cp, location loc);
+static void handle_at (int token_type, char *cp, location loc);
+static void handle_syncline (char *, location);
+static unsigned long int scan_integer (char const *p, int base, location loc);
+static int convert_ucn_to_byte (char const *hex_text);
+static void unexpected_eof (boundary, char const *);
+static void unexpected_newline (boundary, char const *);
+
+
+
+
+
+
+/* POSIX says that a tag must be both an id and a C union member, but
+ historically almost any character is allowed in a tag. We disallow
+ NUL and newline, as this simplifies our implementation. */
+/* Zero or more instances of backslash-newline. Following GCC, allow
+ white space between the backslash and the newline. */
+#line 1016 "scan-gram.c"
+
+#define INITIAL 0
+#define SC_COMMENT 1
+#define SC_LINE_COMMENT 2
+#define SC_YACC_COMMENT 3
+#define SC_STRING 4
+#define SC_CHARACTER 5
+#define SC_AFTER_IDENTIFIER 6
+#define SC_ESCAPED_STRING 7
+#define SC_ESCAPED_CHARACTER 8
+#define SC_PRE_CODE 9
+#define SC_BRACED_CODE 10
+#define SC_PROLOGUE 11
+#define SC_EPILOGUE 12
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+/* %if-c-only */
+#include <unistd.h>
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+/* %if-c-only Reentrant structure and macros (non-C++). */
+/* %if-reentrant */
+/* %if-reentrant */
+/* %endif */
+/* %if-bison-bridge */
+/* %endif */
+/* %endif End reentrant structures and macros. */
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int gram_wrap (void );
+#else
+extern int gram_wrap (void );
+#endif
+#endif
+
+/* %not-for-header */
+
+/* %ok-for-header */
+
+/* %endif */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int );
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * );
+#endif
+
+#ifndef YY_NO_INPUT
+/* %if-c-only Standard (non-C++) definition */
+/* %not-for-header */
+
+#ifdef __cplusplus
+static int yyinput (void );
+#else
+static int input (void );
+#endif
+/* %ok-for-header */
+
+/* %endif */
+#endif
+
+/* %if-c-only */
+
+/* %endif */
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#define YY_READ_BUF_SIZE 8192
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* %if-c-only Standard (non-C++) definition */
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO (void) fwrite( gram_text, gram_leng, 1, gram_out )
+/* %endif */
+/* %if-c++-only C++ definition */
+/* %endif */
+#endif
+
+/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+/* %% [5.0] fread()/read() definition of YY_INPUT goes here unless we're doing C++ \ */\
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
+ { \
+ int c = '*'; \
+ size_t n; \
+ for ( n = 0; n < max_size && \
+ (c = getc( gram_in )) != EOF && c != '\n'; ++n ) \
+ buf[n] = (char) c; \
+ if ( c == '\n' ) \
+ buf[n++] = (char) c; \
+ if ( c == EOF && ferror( gram_in ) ) \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ result = n; \
+ } \
+ else \
+ { \
+ errno=0; \
+ while ( (result = fread(buf, 1, max_size, gram_in))==0 && ferror(gram_in)) \
+ { \
+ if( errno != EINTR) \
+ { \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ break; \
+ } \
+ errno=0; \
+ clearerr(gram_in); \
+ } \
+ }\
+\
+/* %if-c++-only C++ definition \ */\
+/* %endif */
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+/* %if-c-only */
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+#endif
+
+/* %if-tables-serialization structures and prototypes */
+/* %not-for-header */
+
+/* %ok-for-header */
+
+/* %not-for-header */
+
+/* %tables-yydmap generated elements */
+/* %endif */
+/* end tables serialization structures and prototypes */
+
+/* %ok-for-header */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+/* %if-c-only Standard (non-C++) definition */
+
+extern int gram_lex (void);
+
+#define YY_DECL int gram_lex (void)
+/* %endif */
+/* %if-c++-only C++ definition */
+/* %endif */
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after gram_text and gram_leng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+/* %% [6.0] YY_RULE_SETUP definition goes here */
+#define YY_RULE_SETUP \
+ if ( gram_leng > 0 ) \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = \
+ (gram_text[gram_leng - 1] == '\n'); \
+ YY_USER_ACTION
+
+/* %not-for-header */
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp, *yy_bp;
+ register int yy_act;
+
+/* %% [7.0] user's declarations go here */
+#line 165 "scan-gram.l"
+
+
+ /* Nesting level of the current code in braces. */
+ int braces_level IF_LINT (= 0);
+
+ /* Parent context state, when applicable. */
+ int context_state IF_LINT (= 0);
+
+ /* Token type to return, when applicable. */
+ int token_type IF_LINT (= 0);
+
+ /* Location of most recent identifier, when applicable. */
+ location id_loc IF_LINT (= empty_location);
+
+ /* Where containing code started, when applicable. Its initial
+ value is relevant only when gram_lex is invoked in the SC_EPILOGUE
+ start condition. */
+ boundary code_start = scanner_cursor;
+
+ /* Where containing comment or string or character literal started,
+ when applicable. */
+ boundary token_start IF_LINT (= scanner_cursor);
+
+
+
+ /*-----------------------.
+ | Scanning white space. |
+ `-----------------------*/
+
+#line 1266 "scan-gram.c"
+
+ if ( (yy_init) )
+ {
+ (yy_init) = 0;
+
+#ifdef YY_USER_INIT
+ YY_USER_INIT;
+#endif
+
+ if ( ! (yy_start) )
+ (yy_start) = 1; /* first start state */
+
+ if ( ! gram_in )
+/* %if-c-only */
+ gram_in = stdin;
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+ if ( ! gram_out )
+/* %if-c-only */
+ gram_out = stdout;
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+ if ( ! YY_CURRENT_BUFFER ) {
+ gram_ensure_buffer_stack ();
+ YY_CURRENT_BUFFER_LVALUE =
+ gram__create_buffer(gram_in,YY_BUF_SIZE );
+ }
+
+ gram__load_buffer_state( );
+ }
+
+ while ( 1 ) /* loops until end-of-file is reached */
+ {
+/* %% [8.0] yymore()-related code goes here */
+ yy_cp = (yy_c_buf_p);
+
+ /* Support of gram_text. */
+ *yy_cp = (yy_hold_char);
+
+ /* yy_bp points to the position in yy_ch_buf of the start of
+ * the current run.
+ */
+ yy_bp = yy_cp;
+
+/* %% [9.0] code to set up and find next match goes here */
+ yy_current_state = (yy_start);
+ yy_current_state += YY_AT_BOL();
+yy_match:
+ do
+ {
+ register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 461 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ ++yy_cp;
+ }
+ while ( yy_current_state != 460 );
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+
+yy_find_action:
+/* %% [10.0] code to find the action number goes here */
+ yy_act = yy_accept[yy_current_state];
+
+ YY_DO_BEFORE_ACTION;
+
+/* %% [11.0] code for gram_lineno update goes here */
+
+do_action: /* This label is used only to access EOF actions. */
+
+/* %% [12.0] debug code goes here */
+ if ( gram__flex_debug )
+ {
+ if ( yy_act == 0 )
+ fprintf( stderr, "--scanner backing up\n" );
+ else if ( yy_act < 109 )
+ fprintf( stderr, "--accepting rule at line %ld (\"%s\")\n",
+ (long)yy_rule_linenum[yy_act], gram_text );
+ else if ( yy_act == 109 )
+ fprintf( stderr, "--accepting default rule (\"%s\")\n",
+ gram_text );
+ else if ( yy_act == 110 )
+ fprintf( stderr, "--(end of buffer or a NUL)\n" );
+ else
+ fprintf( stderr, "--EOF (start condition %d)\n", YY_START );
+ }
+
+ switch ( yy_act )
+ { /* beginning of action switch */
+/* %% [13.0] actions go here */
+ case 0: /* must back up */
+ /* undo the effects of YY_DO_BEFORE_ACTION */
+ *yy_cp = (yy_hold_char);
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+ goto yy_find_action;
+
+/* Comments and white space. */
+case 1:
+YY_RULE_SETUP
+#line 197 "scan-gram.l"
+warn_at (*loc, _("stray `,' treated as white space"));
+ YY_BREAK
+case 2:
+/* rule 2 can match eol */
+#line 199 "scan-gram.l"
+case 3:
+/* rule 3 can match eol */
+YY_RULE_SETUP
+#line 199 "scan-gram.l"
+;
+ YY_BREAK
+case 4:
+YY_RULE_SETUP
+#line 200 "scan-gram.l"
+{
+ token_start = loc->start;
+ context_state = YY_START;
+ BEGIN SC_YACC_COMMENT;
+ }
+ YY_BREAK
+/* #line directives are not documented, and may be withdrawn or
+ modified in future versions of Bison. */
+case 5:
+/* rule 5 can match eol */
+YY_RULE_SETUP
+#line 208 "scan-gram.l"
+{
+ handle_syncline (gram_text + sizeof "#line " - 1, *loc);
+ }
+ YY_BREAK
+
+/*----------------------------.
+ | Scanning Bison directives. |
+ `----------------------------*/
+
+
+case 6:
+YY_RULE_SETUP
+#line 219 "scan-gram.l"
+return PERCENT_NONASSOC;
+ YY_BREAK
+case 7:
+YY_RULE_SETUP
+#line 220 "scan-gram.l"
+return PERCENT_DEBUG;
+ YY_BREAK
+case 8:
+YY_RULE_SETUP
+#line 221 "scan-gram.l"
+return PERCENT_DEFAULT_PREC;
+ YY_BREAK
+case 9:
+YY_RULE_SETUP
+#line 222 "scan-gram.l"
+return PERCENT_DEFINE;
+ YY_BREAK
+case 10:
+YY_RULE_SETUP
+#line 223 "scan-gram.l"
+return PERCENT_DEFINES;
+ YY_BREAK
+case 11:
+YY_RULE_SETUP
+#line 224 "scan-gram.l"
+token_type = PERCENT_DESTRUCTOR; BEGIN SC_PRE_CODE;
+ YY_BREAK
+case 12:
+YY_RULE_SETUP
+#line 225 "scan-gram.l"
+return PERCENT_DPREC;
+ YY_BREAK
+case 13:
+YY_RULE_SETUP
+#line 226 "scan-gram.l"
+return PERCENT_ERROR_VERBOSE;
+ YY_BREAK
+case 14:
+YY_RULE_SETUP
+#line 227 "scan-gram.l"
+return PERCENT_EXPECT;
+ YY_BREAK
+case 15:
+YY_RULE_SETUP
+#line 228 "scan-gram.l"
+return PERCENT_EXPECT_RR;
+ YY_BREAK
+case 16:
+YY_RULE_SETUP
+#line 229 "scan-gram.l"
+return PERCENT_FILE_PREFIX;
+ YY_BREAK
+case 17:
+YY_RULE_SETUP
+#line 230 "scan-gram.l"
+return PERCENT_YACC;
+ YY_BREAK
+case 18:
+YY_RULE_SETUP
+#line 231 "scan-gram.l"
+token_type = PERCENT_INITIAL_ACTION; BEGIN SC_PRE_CODE;
+ YY_BREAK
+case 19:
+YY_RULE_SETUP
+#line 232 "scan-gram.l"
+return PERCENT_GLR_PARSER;
+ YY_BREAK
+case 20:
+YY_RULE_SETUP
+#line 233 "scan-gram.l"
+return PERCENT_LEFT;
+ YY_BREAK
+case 21:
+YY_RULE_SETUP
+#line 234 "scan-gram.l"
+token_type = PERCENT_LEX_PARAM; BEGIN SC_PRE_CODE;
+ YY_BREAK
+case 22:
+YY_RULE_SETUP
+#line 235 "scan-gram.l"
+return PERCENT_LOCATIONS;
+ YY_BREAK
+case 23:
+YY_RULE_SETUP
+#line 236 "scan-gram.l"
+return PERCENT_MERGE;
+ YY_BREAK
+case 24:
+YY_RULE_SETUP
+#line 237 "scan-gram.l"
+return PERCENT_NAME_PREFIX;
+ YY_BREAK
+case 25:
+YY_RULE_SETUP
+#line 238 "scan-gram.l"
+return PERCENT_NO_DEFAULT_PREC;
+ YY_BREAK
+case 26:
+YY_RULE_SETUP
+#line 239 "scan-gram.l"
+return PERCENT_NO_LINES;
+ YY_BREAK
+case 27:
+YY_RULE_SETUP
+#line 240 "scan-gram.l"
+return PERCENT_NONASSOC;
+ YY_BREAK
+case 28:
+YY_RULE_SETUP
+#line 241 "scan-gram.l"
+return PERCENT_NONDETERMINISTIC_PARSER;
+ YY_BREAK
+case 29:
+YY_RULE_SETUP
+#line 242 "scan-gram.l"
+return PERCENT_NTERM;
+ YY_BREAK
+case 30:
+YY_RULE_SETUP
+#line 243 "scan-gram.l"
+return PERCENT_OUTPUT;
+ YY_BREAK
+case 31:
+YY_RULE_SETUP
+#line 244 "scan-gram.l"
+token_type = PERCENT_PARSE_PARAM; BEGIN SC_PRE_CODE;
+ YY_BREAK
+case 32:
+YY_RULE_SETUP
+#line 245 "scan-gram.l"
+rule_length--; return PERCENT_PREC;
+ YY_BREAK
+case 33:
+YY_RULE_SETUP
+#line 246 "scan-gram.l"
+token_type = PERCENT_PRINTER; BEGIN SC_PRE_CODE;
+ YY_BREAK
+case 34:
+YY_RULE_SETUP
+#line 247 "scan-gram.l"
+return PERCENT_PURE_PARSER;
+ YY_BREAK
+case 35:
+YY_RULE_SETUP
+#line 248 "scan-gram.l"
+return PERCENT_REQUIRE;
+ YY_BREAK
+case 36:
+YY_RULE_SETUP
+#line 249 "scan-gram.l"
+return PERCENT_RIGHT;
+ YY_BREAK
+case 37:
+YY_RULE_SETUP
+#line 250 "scan-gram.l"
+return PERCENT_SKELETON;
+ YY_BREAK
+case 38:
+YY_RULE_SETUP
+#line 251 "scan-gram.l"
+return PERCENT_START;
+ YY_BREAK
+case 39:
+YY_RULE_SETUP
+#line 252 "scan-gram.l"
+return PERCENT_TOKEN;
+ YY_BREAK
+case 40:
+YY_RULE_SETUP
+#line 253 "scan-gram.l"
+return PERCENT_TOKEN;
+ YY_BREAK
+case 41:
+YY_RULE_SETUP
+#line 254 "scan-gram.l"
+return PERCENT_TOKEN_TABLE;
+ YY_BREAK
+case 42:
+YY_RULE_SETUP
+#line 255 "scan-gram.l"
+return PERCENT_TYPE;
+ YY_BREAK
+case 43:
+YY_RULE_SETUP
+#line 256 "scan-gram.l"
+token_type = PERCENT_UNION; BEGIN SC_PRE_CODE;
+ YY_BREAK
+case 44:
+YY_RULE_SETUP
+#line 257 "scan-gram.l"
+return PERCENT_VERBOSE;
+ YY_BREAK
+case 45:
+YY_RULE_SETUP
+#line 258 "scan-gram.l"
+return PERCENT_YACC;
+ YY_BREAK
+case 46:
+YY_RULE_SETUP
+#line 260 "scan-gram.l"
+{
+ complain_at (*loc, _("invalid directive: %s"), quote (gram_text));
+ }
+ YY_BREAK
+case 47:
+YY_RULE_SETUP
+#line 264 "scan-gram.l"
+return EQUAL;
+ YY_BREAK
+case 48:
+YY_RULE_SETUP
+#line 265 "scan-gram.l"
+rule_length = 0; return PIPE;
+ YY_BREAK
+case 49:
+YY_RULE_SETUP
+#line 266 "scan-gram.l"
+return SEMICOLON;
+ YY_BREAK
+case 50:
+YY_RULE_SETUP
+#line 268 "scan-gram.l"
+{
+ val->symbol = symbol_get (gram_text, *loc);
+ id_loc = *loc;
+ increment_rule_length (*loc);
+ BEGIN SC_AFTER_IDENTIFIER;
+ }
+ YY_BREAK
+case 51:
+YY_RULE_SETUP
+#line 275 "scan-gram.l"
+{
+ val->integer = scan_integer (gram_text, 10, *loc);
+ return INT;
+ }
+ YY_BREAK
+case 52:
+YY_RULE_SETUP
+#line 279 "scan-gram.l"
+{
+ val->integer = scan_integer (gram_text, 16, *loc);
+ return INT;
+ }
+ YY_BREAK
+/* Characters. We don't check there is only one. */
+case 53:
+YY_RULE_SETUP
+#line 285 "scan-gram.l"
+STRING_GROW; token_start = loc->start; BEGIN SC_ESCAPED_CHARACTER;
+ YY_BREAK
+/* Strings. */
+case 54:
+YY_RULE_SETUP
+#line 288 "scan-gram.l"
+token_start = loc->start; BEGIN SC_ESCAPED_STRING;
+ YY_BREAK
+/* Prologue. */
+case 55:
+YY_RULE_SETUP
+#line 291 "scan-gram.l"
+code_start = loc->start; BEGIN SC_PROLOGUE;
+ YY_BREAK
+/* Code in between braces. */
+case 56:
+YY_RULE_SETUP
+#line 294 "scan-gram.l"
+{
+ if (current_rule && current_rule->action)
+ grammar_midrule_action ();
+ STRING_GROW;
+ token_type = BRACED_CODE;
+ braces_level = 0;
+ code_start = loc->start;
+ BEGIN SC_BRACED_CODE;
+ }
+ YY_BREAK
+/* A type. */
+case 57:
+YY_RULE_SETUP
+#line 305 "scan-gram.l"
+{
+ obstack_grow (&obstack_for_string, gram_text + 1, gram_leng - 2);
+ STRING_FINISH;
+ val->uniqstr = uniqstr_new (last_string);
+ STRING_FREE;
+ return TYPE;
+ }
+ YY_BREAK
+case 58:
+YY_RULE_SETUP
+#line 313 "scan-gram.l"
+{
+ static int percent_percent_count;
+ if (++percent_percent_count == 2)
+ BEGIN SC_EPILOGUE;
+ return PERCENT_PERCENT;
+ }
+ YY_BREAK
+case 59:
+YY_RULE_SETUP
+#line 320 "scan-gram.l"
+{
+ complain_at (*loc, _("invalid character: %s"), quote (gram_text));
+ }
+ YY_BREAK
+case YY_STATE_EOF(INITIAL):
+#line 324 "scan-gram.l"
+{
+ loc->start = loc->end = scanner_cursor;
+ yyterminate ();
+ }
+ YY_BREAK
+
+/*-----------------------------------------------------------------.
+ | Scanning after an identifier, checking whether a colon is next. |
+ `-----------------------------------------------------------------*/
+
+
+case 60:
+YY_RULE_SETUP
+#line 337 "scan-gram.l"
+{
+ rule_length = 0;
+ *loc = id_loc;
+ BEGIN INITIAL;
+ return ID_COLON;
+ }
+ YY_BREAK
+case 61:
+YY_RULE_SETUP
+#line 343 "scan-gram.l"
+{
+ scanner_cursor.column -= mbsnwidth (gram_text, gram_leng, 0);
+ yyless (0);
+ *loc = id_loc;
+ BEGIN INITIAL;
+ return ID;
+ }
+ YY_BREAK
+case YY_STATE_EOF(SC_AFTER_IDENTIFIER):
+#line 350 "scan-gram.l"
+{
+ *loc = id_loc;
+ BEGIN INITIAL;
+ return ID;
+ }
+ YY_BREAK
+
+/*---------------------------------------------------------------.
+ | Scanning a Yacc comment. The initial `/ *' is already eaten. |
+ `---------------------------------------------------------------*/
+
+
+case 62:
+YY_RULE_SETUP
+#line 364 "scan-gram.l"
+BEGIN context_state;
+ YY_BREAK
+case 63:
+/* rule 63 can match eol */
+YY_RULE_SETUP
+#line 365 "scan-gram.l"
+;
+ YY_BREAK
+case YY_STATE_EOF(SC_YACC_COMMENT):
+#line 366 "scan-gram.l"
+unexpected_eof (token_start, "*/"); BEGIN context_state;
+ YY_BREAK
+
+/*------------------------------------------------------------.
+ | Scanning a C comment. The initial `/ *' is already eaten. |
+ `------------------------------------------------------------*/
+
+
+case 64:
+/* rule 64 can match eol */
+YY_RULE_SETUP
+#line 376 "scan-gram.l"
+STRING_GROW; BEGIN context_state;
+ YY_BREAK
+case YY_STATE_EOF(SC_COMMENT):
+#line 377 "scan-gram.l"
+unexpected_eof (token_start, "*/"); BEGIN context_state;
+ YY_BREAK
+
+/*--------------------------------------------------------------.
+ | Scanning a line comment. The initial `//' is already eaten. |
+ `--------------------------------------------------------------*/
+
+
+case 65:
+/* rule 65 can match eol */
+YY_RULE_SETUP
+#line 387 "scan-gram.l"
+STRING_GROW; BEGIN context_state;
+ YY_BREAK
+case 66:
+/* rule 66 can match eol */
+YY_RULE_SETUP
+#line 388 "scan-gram.l"
+STRING_GROW;
+ YY_BREAK
+case YY_STATE_EOF(SC_LINE_COMMENT):
+#line 389 "scan-gram.l"
+BEGIN context_state;
+ YY_BREAK
+
+/*------------------------------------------------.
+ | Scanning a Bison string, including its escapes. |
+ | The initial quote is already eaten. |
+ `------------------------------------------------*/
+
+
+case 67:
+YY_RULE_SETUP
+#line 400 "scan-gram.l"
+{
+ STRING_FINISH;
+ loc->start = token_start;
+ val->chars = last_string;
+ increment_rule_length (*loc);
+ BEGIN INITIAL;
+ return STRING;
+ }
+ YY_BREAK
+case 68:
+/* rule 68 can match eol */
+YY_RULE_SETUP
+#line 408 "scan-gram.l"
+unexpected_newline (token_start, "\""); BEGIN INITIAL;
+ YY_BREAK
+case YY_STATE_EOF(SC_ESCAPED_STRING):
+#line 409 "scan-gram.l"
+unexpected_eof (token_start, "\""); BEGIN INITIAL;
+ YY_BREAK
+
+/*----------------------------------------------------------.
+ | Scanning a Bison character literal, decoding its escapes. |
+ | The initial quote is already eaten. |
+ `----------------------------------------------------------*/
+
+
+case 69:
+YY_RULE_SETUP
+#line 419 "scan-gram.l"
+{
+ unsigned char last_string_1;
+ STRING_GROW;
+ STRING_FINISH;
+ loc->start = token_start;
+ val->symbol = symbol_get (quotearg_style (escape_quoting_style,
+ last_string),
+ *loc);
+ symbol_class_set (val->symbol, token_sym, *loc, false);
+ last_string_1 = last_string[1];
+ symbol_user_token_number_set (val->symbol, last_string_1, *loc);
+ STRING_FREE;
+ increment_rule_length (*loc);
+ BEGIN INITIAL;
+ return ID;
+ }
+ YY_BREAK
+case 70:
+/* rule 70 can match eol */
+YY_RULE_SETUP
+#line 435 "scan-gram.l"
+unexpected_newline (token_start, "'"); BEGIN INITIAL;
+ YY_BREAK
+case YY_STATE_EOF(SC_ESCAPED_CHARACTER):
+#line 436 "scan-gram.l"
+unexpected_eof (token_start, "'"); BEGIN INITIAL;
+ YY_BREAK
+
+
+
+case 71:
+YY_RULE_SETUP
+#line 441 "scan-gram.l"
+complain_at (*loc, _("invalid null character"));
+ YY_BREAK
+
+/*----------------------------.
+ | Decode escaped characters. |
+ `----------------------------*/
+
+
+case 72:
+YY_RULE_SETUP
+#line 451 "scan-gram.l"
+{
+ unsigned long int c = strtoul (gram_text + 1, NULL, 8);
+ if (UCHAR_MAX < c)
+ complain_at (*loc, _("invalid escape sequence: %s"), quote (gram_text));
+ else if (! c)
+ complain_at (*loc, _("invalid null character: %s"), quote (gram_text));
+ else
+ obstack_1grow (&obstack_for_string, c);
+ }
+ YY_BREAK
+case 73:
+YY_RULE_SETUP
+#line 461 "scan-gram.l"
+{
+ verify (UCHAR_MAX < ULONG_MAX);
+ unsigned long int c = strtoul (gram_text + 2, NULL, 16);
+ if (UCHAR_MAX < c)
+ complain_at (*loc, _("invalid escape sequence: %s"), quote (gram_text));
+ else if (! c)
+ complain_at (*loc, _("invalid null character: %s"), quote (gram_text));
+ else
+ obstack_1grow (&obstack_for_string, c);
+ }
+ YY_BREAK
+case 74:
+YY_RULE_SETUP
+#line 472 "scan-gram.l"
+obstack_1grow (&obstack_for_string, '\a');
+ YY_BREAK
+case 75:
+YY_RULE_SETUP
+#line 473 "scan-gram.l"
+obstack_1grow (&obstack_for_string, '\b');
+ YY_BREAK
+case 76:
+YY_RULE_SETUP
+#line 474 "scan-gram.l"
+obstack_1grow (&obstack_for_string, '\f');
+ YY_BREAK
+case 77:
+YY_RULE_SETUP
+#line 475 "scan-gram.l"
+obstack_1grow (&obstack_for_string, '\n');
+ YY_BREAK
+case 78:
+YY_RULE_SETUP
+#line 476 "scan-gram.l"
+obstack_1grow (&obstack_for_string, '\r');
+ YY_BREAK
+case 79:
+YY_RULE_SETUP
+#line 477 "scan-gram.l"
+obstack_1grow (&obstack_for_string, '\t');
+ YY_BREAK
+case 80:
+YY_RULE_SETUP
+#line 478 "scan-gram.l"
+obstack_1grow (&obstack_for_string, '\v');
+ YY_BREAK
+/* \\[\"\'?\\] would be shorter, but it confuses xgettext. */
+case 81:
+YY_RULE_SETUP
+#line 481 "scan-gram.l"
+obstack_1grow (&obstack_for_string, gram_text[1]);
+ YY_BREAK
+case 82:
+YY_RULE_SETUP
+#line 483 "scan-gram.l"
+{
+ int c = convert_ucn_to_byte (gram_text);
+ if (c < 0)
+ complain_at (*loc, _("invalid escape sequence: %s"), quote (gram_text));
+ else if (! c)
+ complain_at (*loc, _("invalid null character: %s"), quote (gram_text));
+ else
+ obstack_1grow (&obstack_for_string, c);
+ }
+ YY_BREAK
+case 83:
+/* rule 83 can match eol */
+YY_RULE_SETUP
+#line 492 "scan-gram.l"
+{
+ complain_at (*loc, _("unrecognized escape sequence: %s"), quote (gram_text));
+ STRING_GROW;
+ }
+ YY_BREAK
+
+/*--------------------------------------------.
+ | Scanning user-code characters and strings. |
+ `--------------------------------------------*/
+
+
+case 84:
+/* rule 84 can match eol */
+YY_RULE_SETUP
+#line 504 "scan-gram.l"
+STRING_GROW;
+ YY_BREAK
+
+
+
+case 85:
+YY_RULE_SETUP
+#line 509 "scan-gram.l"
+STRING_GROW; BEGIN context_state;
+ YY_BREAK
+case 86:
+/* rule 86 can match eol */
+YY_RULE_SETUP
+#line 510 "scan-gram.l"
+unexpected_newline (token_start, "'"); BEGIN context_state;
+ YY_BREAK
+case YY_STATE_EOF(SC_CHARACTER):
+#line 511 "scan-gram.l"
+unexpected_eof (token_start, "'"); BEGIN context_state;
+ YY_BREAK
+
+
+
+case 87:
+YY_RULE_SETUP
+#line 516 "scan-gram.l"
+STRING_GROW; BEGIN context_state;
+ YY_BREAK
+case 88:
+/* rule 88 can match eol */
+YY_RULE_SETUP
+#line 517 "scan-gram.l"
+unexpected_newline (token_start, "\""); BEGIN context_state;
+ YY_BREAK
+case YY_STATE_EOF(SC_STRING):
+#line 518 "scan-gram.l"
+unexpected_eof (token_start, "\""); BEGIN context_state;
+ YY_BREAK
+
+/*---------------------------------------------------.
+ | Strings, comments etc. can be found in user code. |
+ `---------------------------------------------------*/
+
+
+case 89:
+YY_RULE_SETUP
+#line 528 "scan-gram.l"
+{
+ STRING_GROW;
+ context_state = YY_START;
+ token_start = loc->start;
+ BEGIN SC_CHARACTER;
+ }
+ YY_BREAK
+case 90:
+YY_RULE_SETUP
+#line 534 "scan-gram.l"
+{
+ STRING_GROW;
+ context_state = YY_START;
+ token_start = loc->start;
+ BEGIN SC_STRING;
+ }
+ YY_BREAK
+case 91:
+/* rule 91 can match eol */
+YY_RULE_SETUP
+#line 540 "scan-gram.l"
+{
+ STRING_GROW;
+ context_state = YY_START;
+ token_start = loc->start;
+ BEGIN SC_COMMENT;
+ }
+ YY_BREAK
+case 92:
+/* rule 92 can match eol */
+YY_RULE_SETUP
+#line 546 "scan-gram.l"
+{
+ STRING_GROW;
+ context_state = YY_START;
+ BEGIN SC_LINE_COMMENT;
+ }
+ YY_BREAK
+
+/*---------------------------------------------------------------.
+ | Scanning after %union etc., possibly followed by white space. |
+ | For %union only, allow arbitrary C code to appear before the |
+ | following brace, as an extension to POSIX. |
+ `---------------------------------------------------------------*/
+
+
+case 93:
+YY_RULE_SETUP
+#line 562 "scan-gram.l"
+{
+ bool valid = gram_text[0] == '{' || token_type == PERCENT_UNION;
+ scanner_cursor.column -= mbsnwidth (gram_text, gram_leng, 0);
+ yyless (0);
+
+ if (valid)
+ {
+ braces_level = -1;
+ code_start = loc->start;
+ BEGIN SC_BRACED_CODE;
+ }
+ else
+ {
+ complain_at (*loc, _("missing `{' in %s"),
+ token_name (token_type));
+ obstack_sgrow (&obstack_for_string, "{}");
+ STRING_FINISH;
+ val->chars = last_string;
+ BEGIN INITIAL;
+ return token_type;
+ }
+ }
+ YY_BREAK
+case YY_STATE_EOF(SC_PRE_CODE):
+#line 585 "scan-gram.l"
+unexpected_eof (scanner_cursor, "{}"); BEGIN INITIAL;
+ YY_BREAK
+
+/*---------------------------------------------------------------.
+ | Scanning some code in braces (%union and actions). The initial |
+ | "{" is already eaten. |
+ `---------------------------------------------------------------*/
+
+
+case 94:
+/* rule 94 can match eol */
+YY_RULE_SETUP
+#line 596 "scan-gram.l"
+STRING_GROW; braces_level++;
+ YY_BREAK
+case 95:
+/* rule 95 can match eol */
+YY_RULE_SETUP
+#line 597 "scan-gram.l"
+STRING_GROW; braces_level--;
+ YY_BREAK
+case 96:
+YY_RULE_SETUP
+#line 598 "scan-gram.l"
+{
+ bool outer_brace = --braces_level < 0;
+
+ /* As an undocumented Bison extension, append `;' before the last
+ brace in braced code, so that the user code can omit trailing
+ `;'. But do not append `;' if emulating Yacc, since Yacc does
+ not append one.
+
+ FIXME: Bison should warn if a semicolon seems to be necessary
+ here, and should omit the semicolon if it seems unnecessary
+ (e.g., after ';', '{', or '}', each followed by comments or
+ white space). Such a warning shouldn't depend on --yacc; it
+ should depend on a new --pedantic option, which would cause
+ Bison to warn if it detects an extension to POSIX. --pedantic
+ should also diagnose other Bison extensions like %yacc.
+ Perhaps there should also be a GCC-style --pedantic-errors
+ option, so that such warnings are diagnosed as errors. */
+ if (outer_brace && token_type == BRACED_CODE && ! yacc_flag)
+ obstack_1grow (&obstack_for_string, ';');
+
+ obstack_1grow (&obstack_for_string, '}');
+
+ if (outer_brace)
+ {
+ STRING_FINISH;
+ loc->start = code_start;
+ val->chars = last_string;
+ increment_rule_length (*loc);
+ last_braced_code_loc = *loc;
+ BEGIN INITIAL;
+ return token_type;
+ }
+ }
+ YY_BREAK
+/* Tokenize `<<%' correctly (as `<<' `%') rather than incorrrectly
+ (as `<' `<%'). */
+case 97:
+/* rule 97 can match eol */
+YY_RULE_SETUP
+#line 634 "scan-gram.l"
+STRING_GROW;
+ YY_BREAK
+case 98:
+YY_RULE_SETUP
+#line 636 "scan-gram.l"
+handle_dollar (token_type, gram_text, *loc);
+ YY_BREAK
+case 99:
+YY_RULE_SETUP
+#line 637 "scan-gram.l"
+handle_at (token_type, gram_text, *loc);
+ YY_BREAK
+case 100:
+YY_RULE_SETUP
+#line 639 "scan-gram.l"
+{
+ warn_at (*loc, _("stray `$'"));
+ obstack_sgrow (&obstack_for_string, "$][");
+ }
+ YY_BREAK
+case 101:
+YY_RULE_SETUP
+#line 643 "scan-gram.l"
+{
+ warn_at (*loc, _("stray `@'"));
+ obstack_sgrow (&obstack_for_string, "@@");
+ }
+ YY_BREAK
+case YY_STATE_EOF(SC_BRACED_CODE):
+#line 648 "scan-gram.l"
+unexpected_eof (code_start, "}"); BEGIN INITIAL;
+ YY_BREAK
+
+/*--------------------------------------------------------------.
+ | Scanning some prologue: from "%{" (already scanned) to "%}". |
+ `--------------------------------------------------------------*/
+
+
+case 102:
+YY_RULE_SETUP
+#line 658 "scan-gram.l"
+{
+ STRING_FINISH;
+ loc->start = code_start;
+ val->chars = last_string;
+ BEGIN INITIAL;
+ return PROLOGUE;
+ }
+ YY_BREAK
+case YY_STATE_EOF(SC_PROLOGUE):
+#line 666 "scan-gram.l"
+unexpected_eof (code_start, "%}"); BEGIN INITIAL;
+ YY_BREAK
+
+/*---------------------------------------------------------------.
+ | Scanning the epilogue (everything after the second "%%", which |
+ | has already been eaten). |
+ `---------------------------------------------------------------*/
+
+
+case YY_STATE_EOF(SC_EPILOGUE):
+#line 677 "scan-gram.l"
+{
+ STRING_FINISH;
+ loc->start = code_start;
+ val->chars = last_string;
+ BEGIN INITIAL;
+ return EPILOGUE;
+ }
+ YY_BREAK
+
+/*-----------------------------------------.
+ | Escape M4 quoting characters in C code. |
+ `-----------------------------------------*/
+
+
+case 103:
+YY_RULE_SETUP
+#line 693 "scan-gram.l"
+obstack_sgrow (&obstack_for_string, "$][");
+ YY_BREAK
+case 104:
+YY_RULE_SETUP
+#line 694 "scan-gram.l"
+obstack_sgrow (&obstack_for_string, "@@");
+ YY_BREAK
+case 105:
+YY_RULE_SETUP
+#line 695 "scan-gram.l"
+obstack_sgrow (&obstack_for_string, "@{");
+ YY_BREAK
+case 106:
+YY_RULE_SETUP
+#line 696 "scan-gram.l"
+obstack_sgrow (&obstack_for_string, "@}");
+ YY_BREAK
+
+/*-----------------------------------------------------.
+ | By default, grow the string obstack with the input. |
+ `-----------------------------------------------------*/
+case 107:
+#line 705 "scan-gram.l"
+case 108:
+/* rule 108 can match eol */
+YY_RULE_SETUP
+#line 705 "scan-gram.l"
+STRING_GROW;
+ YY_BREAK
+case 109:
+YY_RULE_SETUP
+#line 707 "scan-gram.l"
+YY_FATAL_ERROR( "flex scanner jammed" );
+ YY_BREAK
+#line 2305 "scan-gram.c"
+
+ case YY_END_OF_BUFFER:
+ {
+ /* Amount of text matched not including the EOB char. */
+ int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
+
+ /* Undo the effects of YY_DO_BEFORE_ACTION. */
+ *yy_cp = (yy_hold_char);
+ YY_RESTORE_YY_MORE_OFFSET
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+ {
+ /* We're scanning a new file or input source. It's
+ * possible that this happened because the user
+ * just pointed gram_in at a new source and called
+ * gram_lex(). If so, then we have to assure
+ * consistency between YY_CURRENT_BUFFER and our
+ * globals. Here is the right place to do so, because
+ * this is the first action (other than possibly a
+ * back-up) that will match for the new input source.
+ */
+ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ YY_CURRENT_BUFFER_LVALUE->yy_input_file = gram_in;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+ }
+
+ /* Note that here we test for yy_c_buf_p "<=" to the position
+ * of the first EOB in the buffer, since yy_c_buf_p will
+ * already have been incremented past the NUL character
+ * (since all states make transitions on EOB to the
+ * end-of-buffer state). Contrast this with the test
+ * in input().
+ */
+ if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+ { /* This was really a NUL. */
+ yy_state_type yy_next_state;
+
+ (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( );
+
+ /* Okay, we're now positioned to make the NUL
+ * transition. We couldn't have
+ * yy_get_previous_state() go ahead and do it
+ * for us because it doesn't know how to deal
+ * with the possibility of jamming (and we don't
+ * want to build jamming into it because then it
+ * will run more slowly).
+ */
+
+ yy_next_state = yy_try_NUL_trans( yy_current_state );
+
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+
+ if ( yy_next_state )
+ {
+ /* Consume the NUL. */
+ yy_cp = ++(yy_c_buf_p);
+ yy_current_state = yy_next_state;
+ goto yy_match;
+ }
+
+ else
+ {
+/* %% [14.0] code to do back-up for compressed tables and set up yy_cp goes here */
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+ goto yy_find_action;
+ }
+ }
+
+ else switch ( yy_get_next_buffer( ) )
+ {
+ case EOB_ACT_END_OF_FILE:
+ {
+ (yy_did_buffer_switch_on_eof) = 0;
+
+ if ( gram_wrap( ) )
+ {
+ /* Note: because we've taken care in
+ * yy_get_next_buffer() to have set up
+ * gram_text, we can now set up
+ * yy_c_buf_p so that if some total
+ * hoser (like flex itself) wants to
+ * call the scanner after we return the
+ * YY_NULL, it'll still work - another
+ * YY_NULL will get returned.
+ */
+ (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
+
+ yy_act = YY_STATE_EOF(YY_START);
+ goto do_action;
+ }
+
+ else
+ {
+ if ( ! (yy_did_buffer_switch_on_eof) )
+ YY_NEW_FILE;
+ }
+ break;
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ (yy_c_buf_p) =
+ (yytext_ptr) + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( );
+
+ yy_cp = (yy_c_buf_p);
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+ goto yy_match;
+
+ case EOB_ACT_LAST_MATCH:
+ (yy_c_buf_p) =
+ &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
+
+ yy_current_state = yy_get_previous_state( );
+
+ yy_cp = (yy_c_buf_p);
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+ goto yy_find_action;
+ }
+ break;
+ }
+
+ default:
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--no action found" );
+ } /* end of action switch */
+ } /* end of scanning one token */
+} /* end of gram_lex */
+/* %ok-for-header */
+
+/* %if-c++-only */
+/* %not-for-header */
+
+/* %ok-for-header */
+
+/* %endif */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ * EOB_ACT_LAST_MATCH -
+ * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ * EOB_ACT_END_OF_FILE - end of file
+ */
+/* %if-c-only */
+static int yy_get_next_buffer (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+ register char *source = (yytext_ptr);
+ register int number_to_move, i;
+ int ret_val;
+
+ if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--end of buffer missed" );
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+ { /* Don't try to fill the buffer, so this is an EOF. */
+ if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
+ {
+ /* We matched a single character, the EOB, so
+ * treat this as a final EOF.
+ */
+ return EOB_ACT_END_OF_FILE;
+ }
+
+ else
+ {
+ /* We matched some text prior to the EOB, first
+ * process it.
+ */
+ return EOB_ACT_LAST_MATCH;
+ }
+ }
+
+ /* Try to read more data. */
+
+ /* First move last chars to start of buffer. */
+ number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
+
+ for ( i = 0; i < number_to_move; ++i )
+ *(dest++) = *(source++);
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+ /* don't do the read, it's not guaranteed to return an EOF,
+ * just force an EOF
+ */
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
+
+ else
+ {
+ size_t num_to_read =
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+ while ( num_to_read <= 0 )
+ { /* Not enough room in the buffer - grow it. */
+
+ /* just a shorter name for the current buffer */
+ YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
+
+ int yy_c_buf_p_offset =
+ (int) ((yy_c_buf_p) - b->yy_ch_buf);
+
+ if ( b->yy_is_our_buffer )
+ {
+ int new_size = b->yy_buf_size * 2;
+
+ if ( new_size <= 0 )
+ b->yy_buf_size += b->yy_buf_size / 8;
+ else
+ b->yy_buf_size *= 2;
+
+ b->yy_ch_buf = (char *)
+ /* Include room in for 2 EOB chars. */
+ gram_realloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 );
+ }
+ else
+ /* Can't grow it, we don't own it. */
+ b->yy_ch_buf = 0;
+
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR(
+ "fatal error - scanner input buffer overflow" );
+
+ (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+ num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+ number_to_move - 1;
+
+ }
+
+ if ( num_to_read > YY_READ_BUF_SIZE )
+ num_to_read = YY_READ_BUF_SIZE;
+
+ /* Read in more data. */
+ YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+ (yy_n_chars), num_to_read );
+
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ if ( (yy_n_chars) == 0 )
+ {
+ if ( number_to_move == YY_MORE_ADJ )
+ {
+ ret_val = EOB_ACT_END_OF_FILE;
+ gram_restart(gram_in );
+ }
+
+ else
+ {
+ ret_val = EOB_ACT_LAST_MATCH;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+ YY_BUFFER_EOF_PENDING;
+ }
+ }
+
+ else
+ ret_val = EOB_ACT_CONTINUE_SCAN;
+
+ (yy_n_chars) += number_to_move;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
+
+ (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+ return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+/* %if-c-only */
+/* %not-for-header */
+
+ static yy_state_type yy_get_previous_state (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp;
+
+/* %% [15.0] code to get the start state into yy_current_state goes here */
+ yy_current_state = (yy_start);
+ yy_current_state += YY_AT_BOL();
+
+ for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
+ {
+/* %% [16.0] code to find the next state goes here */
+ register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 58);
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 461 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ }
+
+ return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ * next_state = yy_try_NUL_trans( current_state );
+ */
+/* %if-c-only */
+ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ register int yy_is_jam;
+ /* %% [17.0] code to find the next state, and perhaps do backing up, goes here */
+ register char *yy_cp = (yy_c_buf_p);
+
+ register YY_CHAR yy_c = 58;
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 461 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ yy_is_jam = (yy_current_state == 460);
+
+ return yy_is_jam ? 0 : yy_current_state;
+}
+
+/* %if-c-only */
+
+/* %endif */
+
+/* %if-c-only */
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+ static int yyinput (void)
+#else
+ static int input (void)
+#endif
+
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ int c;
+
+ *(yy_c_buf_p) = (yy_hold_char);
+
+ if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
+ {
+ /* yy_c_buf_p now points to the character we want to return.
+ * If this occurs *before* the EOB characters, then it's a
+ * valid NUL; if not, then we've hit the end of the buffer.
+ */
+ if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+ /* This was really a NUL. */
+ *(yy_c_buf_p) = '\0';
+
+ else
+ { /* need more input */
+ int offset = (yy_c_buf_p) - (yytext_ptr);
+ ++(yy_c_buf_p);
+
+ switch ( yy_get_next_buffer( ) )
+ {
+ case EOB_ACT_LAST_MATCH:
+ /* This happens because yy_g_n_b()
+ * sees that we've accumulated a
+ * token and flags that we need to
+ * try matching the token before
+ * proceeding. But for input(),
+ * there's no matching to consider.
+ * So convert the EOB_ACT_LAST_MATCH
+ * to EOB_ACT_END_OF_FILE.
+ */
+
+ /* Reset buffer status. */
+ gram_restart(gram_in );
+
+ /*FALLTHROUGH*/
+
+ case EOB_ACT_END_OF_FILE:
+ {
+ if ( gram_wrap( ) )
+ return EOF;
+
+ if ( ! (yy_did_buffer_switch_on_eof) )
+ YY_NEW_FILE;
+#ifdef __cplusplus
+ return yyinput();
+#else
+ return input();
+#endif
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ (yy_c_buf_p) = (yytext_ptr) + offset;
+ break;
+ }
+ }
+ }
+
+ c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */
+ *(yy_c_buf_p) = '\0'; /* preserve gram_text */
+ (yy_hold_char) = *++(yy_c_buf_p);
+
+/* %% [19.0] update BOL and gram_lineno */
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = (c == '\n');
+
+ return c;
+}
+/* %if-c-only */
+#endif /* ifndef YY_NO_INPUT */
+/* %endif */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ *
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+/* %if-c-only */
+ void gram_restart (FILE * input_file )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+
+ if ( ! YY_CURRENT_BUFFER ){
+ gram_ensure_buffer_stack ();
+ YY_CURRENT_BUFFER_LVALUE =
+ gram__create_buffer(gram_in,YY_BUF_SIZE );
+ }
+
+ gram__init_buffer(YY_CURRENT_BUFFER,input_file );
+ gram__load_buffer_state( );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ *
+ */
+/* %if-c-only */
+ void gram__switch_to_buffer (YY_BUFFER_STATE new_buffer )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+
+ /* TODO. We should be able to replace this entire function body
+ * with
+ * gram_pop_buffer_state();
+ * gram_push_buffer_state(new_buffer);
+ */
+ gram_ensure_buffer_stack ();
+ if ( YY_CURRENT_BUFFER == new_buffer )
+ return;
+
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *(yy_c_buf_p) = (yy_hold_char);
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+ gram__load_buffer_state( );
+
+ /* We don't actually know whether we did this switch during
+ * EOF (gram_wrap()) processing, but the only time this flag
+ * is looked at is after gram_wrap() is called, so it's safe
+ * to go ahead and always set it.
+ */
+ (yy_did_buffer_switch_on_eof) = 1;
+}
+
+/* %if-c-only */
+static void gram__load_buffer_state (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+ gram_in = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+ (yy_hold_char) = *(yy_c_buf_p);
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ *
+ * @return the allocated buffer state.
+ */
+/* %if-c-only */
+ YY_BUFFER_STATE gram__create_buffer (FILE * file, int size )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ YY_BUFFER_STATE b;
+
+ b = (YY_BUFFER_STATE) gram_alloc(sizeof( struct yy_buffer_state ) );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in gram__create_buffer()" );
+
+ b->yy_buf_size = size;
+
+ /* yy_ch_buf has to be 2 characters longer than the size given because
+ * we need to put in 2 end-of-buffer characters.
+ */
+ b->yy_ch_buf = (char *) gram_alloc(b->yy_buf_size + 2 );
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in gram__create_buffer()" );
+
+ b->yy_is_our_buffer = 1;
+
+ gram__init_buffer(b,file );
+
+ return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with gram__create_buffer()
+ *
+ */
+/* %if-c-only */
+ void gram__delete_buffer (YY_BUFFER_STATE b )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+
+ if ( ! b )
+ return;
+
+ if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+ YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+ if ( b->yy_is_our_buffer )
+ gram_free((void *) b->yy_ch_buf );
+
+ gram_free((void *) b );
+}
+
+/* %if-c-only */
+
+/* %endif */
+
+/* %if-c++-only */
+/* %endif */
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a gram_restart() or at EOF.
+ */
+/* %if-c-only */
+ static void gram__init_buffer (YY_BUFFER_STATE b, FILE * file )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+{
+ int oerrno = errno;
+
+ gram__flush_buffer(b );
+
+ b->yy_input_file = file;
+ b->yy_fill_buffer = 1;
+
+ /* If b is the current buffer, then gram__init_buffer was _probably_
+ * called from gram_restart() or through yy_get_next_buffer.
+ * In that case, we don't want to reset the lineno or column.
+ */
+ if (b != YY_CURRENT_BUFFER){
+ b->yy_bs_lineno = 1;
+ b->yy_bs_column = 0;
+ }
+
+/* %if-c-only */
+
+ b->yy_is_interactive = 0;
+
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+ errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ *
+ */
+/* %if-c-only */
+ void gram__flush_buffer (YY_BUFFER_STATE b )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ if ( ! b )
+ return;
+
+ b->yy_n_chars = 0;
+
+ /* We always need two end-of-buffer characters. The first causes
+ * a transition to the end-of-buffer state. The second causes
+ * a jam in that state.
+ */
+ b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+ b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+ b->yy_buf_pos = &b->yy_ch_buf[0];
+
+ b->yy_at_bol = 1;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ if ( b == YY_CURRENT_BUFFER )
+ gram__load_buffer_state( );
+}
+
+/* %if-c-or-c++ */
+/** Pushes the new state onto the stack. The new state becomes
+ * the current state. This function will allocate the stack
+ * if necessary.
+ * @param new_buffer The new state.
+ *
+ */
+/* %if-c-only */
+void gram_push_buffer_state (YY_BUFFER_STATE new_buffer )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ if (new_buffer == NULL)
+ return;
+
+ gram_ensure_buffer_stack();
+
+ /* This block is copied from gram__switch_to_buffer. */
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *(yy_c_buf_p) = (yy_hold_char);
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ /* Only push if top exists. Otherwise, replace top. */
+ if (YY_CURRENT_BUFFER)
+ (yy_buffer_stack_top)++;
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+ /* copied from gram__switch_to_buffer. */
+ gram__load_buffer_state( );
+ (yy_did_buffer_switch_on_eof) = 1;
+}
+/* %endif */
+
+/* %if-c-or-c++ */
+/** Removes and deletes the top of the stack, if present.
+ * The next element becomes the new top.
+ *
+ */
+/* %if-c-only */
+void gram_pop_buffer_state (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ if (!YY_CURRENT_BUFFER)
+ return;
+
+ gram__delete_buffer(YY_CURRENT_BUFFER );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ if ((yy_buffer_stack_top) > 0)
+ --(yy_buffer_stack_top);
+
+ if (YY_CURRENT_BUFFER) {
+ gram__load_buffer_state( );
+ (yy_did_buffer_switch_on_eof) = 1;
+ }
+}
+/* %endif */
+
+/* %if-c-or-c++ */
+/* Allocates the stack if it does not exist.
+ * Guarantees space for at least one push.
+ */
+/* %if-c-only */
+static void gram_ensure_buffer_stack (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ int num_to_alloc;
+
+ if (!(yy_buffer_stack)) {
+
+ /* First allocation is just for 2 elements, since we don't know if this
+ * scanner will even need a stack. We use 2 instead of 1 to avoid an
+ * immediate realloc on the next call.
+ */
+ num_to_alloc = 1;
+ (yy_buffer_stack) = (struct yy_buffer_state**)gram_alloc
+ (num_to_alloc * sizeof(struct yy_buffer_state*)
+ );
+
+ memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+
+ (yy_buffer_stack_max) = num_to_alloc;
+ (yy_buffer_stack_top) = 0;
+ return;
+ }
+
+ if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
+
+ /* Increase the buffer to prepare for a possible push. */
+ int grow_size = 8 /* arbitrary grow size */;
+
+ num_to_alloc = (yy_buffer_stack_max) + grow_size;
+ (yy_buffer_stack) = (struct yy_buffer_state**)gram_realloc
+ ((yy_buffer_stack),
+ num_to_alloc * sizeof(struct yy_buffer_state*)
+ );
+
+ /* zero only the new slots.*/
+ memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
+ (yy_buffer_stack_max) = num_to_alloc;
+ }
+}
+/* %endif */
+
+/* %if-c-only */
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ *
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE gram__scan_buffer (char * base, yy_size_t size )
+{
+ YY_BUFFER_STATE b;
+
+ if ( size < 2 ||
+ base[size-2] != YY_END_OF_BUFFER_CHAR ||
+ base[size-1] != YY_END_OF_BUFFER_CHAR )
+ /* They forgot to leave room for the EOB's. */
+ return 0;
+
+ b = (YY_BUFFER_STATE) gram_alloc(sizeof( struct yy_buffer_state ) );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in gram__scan_buffer()" );
+
+ b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
+ b->yy_buf_pos = b->yy_ch_buf = base;
+ b->yy_is_our_buffer = 0;
+ b->yy_input_file = 0;
+ b->yy_n_chars = b->yy_buf_size;
+ b->yy_is_interactive = 0;
+ b->yy_at_bol = 1;
+ b->yy_fill_buffer = 0;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ gram__switch_to_buffer(b );
+
+ return b;
+}
+/* %endif */
+
+/* %if-c-only */
+/** Setup the input buffer state to scan a string. The next call to gram_lex() will
+ * scan from a @e copy of @a str.
+ * @param str a NUL-terminated string to scan
+ *
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ * gram__scan_bytes() instead.
+ */
+YY_BUFFER_STATE gram__scan_string (yyconst char * yy_str )
+{
+
+ return gram__scan_bytes(yy_str,strlen(yy_str) );
+}
+/* %endif */
+
+/* %if-c-only */
+/** Setup the input buffer state to scan the given bytes. The next call to gram_lex() will
+ * scan from a @e copy of @a bytes.
+ * @param bytes the byte buffer to scan
+ * @param len the number of bytes in the buffer pointed to by @a bytes.
+ *
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE gram__scan_bytes (yyconst char * bytes, int len )
+{
+ YY_BUFFER_STATE b;
+ char *buf;
+ yy_size_t n;
+ int i;
+
+ /* Get memory for full buffer, including space for trailing EOB's. */
+ n = len + 2;
+ buf = (char *) gram_alloc(n );
+ if ( ! buf )
+ YY_FATAL_ERROR( "out of dynamic memory in gram__scan_bytes()" );
+
+ for ( i = 0; i < len; ++i )
+ buf[i] = bytes[i];
+
+ buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;
+
+ b = gram__scan_buffer(buf,n );
+ if ( ! b )
+ YY_FATAL_ERROR( "bad buffer in gram__scan_bytes()" );
+
+ /* It's okay to grow etc. this buffer, and we should throw it
+ * away when we're done.
+ */
+ b->yy_is_our_buffer = 1;
+
+ return b;
+}
+/* %endif */
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+/* %if-c-only */
+static void yy_fatal_error (yyconst char* msg )
+{
+ (void) fprintf( stderr, "%s\n", msg );
+ exit( YY_EXIT_FAILURE );
+}
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up gram_text. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ gram_text[gram_leng] = (yy_hold_char); \
+ (yy_c_buf_p) = gram_text + yyless_macro_arg; \
+ (yy_hold_char) = *(yy_c_buf_p); \
+ *(yy_c_buf_p) = '\0'; \
+ gram_leng = yyless_macro_arg; \
+ } \
+ while ( 0 )
+
+/* Accessor methods (get/set functions) to struct members. */
+
+/* %if-c-only */
+/* %if-reentrant */
+/* %endif */
+
+/** Get the current line number.
+ *
+ */
+int gram_get_lineno (void)
+{
+
+ return gram_lineno;
+}
+
+/** Get the input stream.
+ *
+ */
+FILE *gram_get_in (void)
+{
+ return gram_in;
+}
+
+/** Get the output stream.
+ *
+ */
+FILE *gram_get_out (void)
+{
+ return gram_out;
+}
+
+/** Get the length of the current token.
+ *
+ */
+int gram_get_leng (void)
+{
+ return gram_leng;
+}
+
+/** Get the current token.
+ *
+ */
+
+char *gram_get_text (void)
+{
+ return gram_text;
+}
+
+/* %if-reentrant */
+/* %endif */
+
+/** Set the current line number.
+ * @param line_number
+ *
+ */
+void gram_set_lineno (int line_number )
+{
+
+ gram_lineno = line_number;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ *
+ * @see gram__switch_to_buffer
+ */
+void gram_set_in (FILE * in_str )
+{
+ gram_in = in_str ;
+}
+
+void gram_set_out (FILE * out_str )
+{
+ gram_out = out_str ;
+}
+
+int gram_get_debug (void)
+{
+ return gram__flex_debug;
+}
+
+void gram_set_debug (int bdebug )
+{
+ gram__flex_debug = bdebug ;
+}
+
+/* %endif */
+
+/* %if-reentrant */
+/* %if-bison-bridge */
+/* %endif */
+/* %endif */
+
+/* %if-c-only SNIP! this currently causes conflicts with the c++ scanner */
+/* gram_lex_destroy is for both reentrant and non-reentrant scanners. */
+int gram_lex_destroy (void)
+{
+
+ /* Pop the buffer stack, destroying each element. */
+ while(YY_CURRENT_BUFFER){
+ gram__delete_buffer(YY_CURRENT_BUFFER );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ gram_pop_buffer_state();
+ }
+
+ /* Destroy the stack itself. */
+ gram_free((yy_buffer_stack) );
+ (yy_buffer_stack) = NULL;
+
+/* %if-reentrant */
+/* %endif */
+ return 0;
+}
+/* %endif */
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
+{
+ register int i;
+ for ( i = 0; i < n; ++i )
+ s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s )
+{
+ register int n;
+ for ( n = 0; s[n]; ++n )
+ ;
+
+ return n;
+}
+#endif
+
+void *gram_alloc (yy_size_t size )
+{
+ return (void *) malloc( size );
+}
+
+void *gram_realloc (void * ptr, yy_size_t size )
+{
+ /* The cast to (char *) in the following accommodates both
+ * implementations that use char* generic pointers, and those
+ * that use void* generic pointers. It works with the latter
+ * because both ANSI C and C++ allow castless assignment from
+ * any pointer type to void*, and deal with argument conversions
+ * as though doing an assignment.
+ */
+ return (void *) realloc( (char *) ptr, size );
+}
+
+void gram_free (void * ptr )
+{
+ free( (char *) ptr ); /* see gram_realloc() for (char *) cast */
+}
+
+/* %if-tables-serialization definitions */
+/* %define-yytables The name for this specific scanner's tables. */
+#define YYTABLES_NAME "yytables"
+/* %endif */
+
+/* %ok-for-header */
+
+#undef YY_NEW_FILE
+#undef YY_FLUSH_BUFFER
+#undef yy_set_bol
+#undef yy_new_buffer
+#undef yy_set_interactive
+#undef yytext_ptr
+#undef YY_DO_BEFORE_ACTION
+
+#ifdef YY_DECL_IS_OURS
+#undef YY_DECL_IS_OURS
+#undef YY_DECL
+#endif
+#line 707 "scan-gram.l"
+
+
+
+/* Keeps track of the maximum number of semantic values to the left of
+ a handle (those referenced by $0, $-1, etc.) are required by the
+ semantic actions of this grammar. */
+int max_left_semantic_context = 0;
+
+/* If BUF is null, add BUFSIZE (which in this case must be less than
+ INT_MAX) to COLUMN; otherwise, add mbsnwidth (BUF, BUFSIZE, 0) to
+ COLUMN. If an overflow occurs, or might occur but is undetectable,
+ return INT_MAX. Assume COLUMN is nonnegative. */
+
+static inline int
+add_column_width (int column, char const *buf, size_t bufsize)
+{
+ size_t width;
+ unsigned int remaining_columns = INT_MAX - column;
+
+ if (buf)
+ {
+ if (INT_MAX / 2 <= bufsize)
+ return INT_MAX;
+ width = mbsnwidth (buf, bufsize, 0);
+ }
+ else
+ width = bufsize;
+
+ return width <= remaining_columns ? column + width : INT_MAX;
+}
+
+/* Set *LOC and adjust scanner cursor to account for token TOKEN of
+ size SIZE. */
+
+static void
+adjust_location (location *loc, char const *token, size_t size)
+{
+ int line = scanner_cursor.line;
+ int column = scanner_cursor.column;
+ char const *p0 = token;
+ char const *p = token;
+ char const *lim = token + size;
+
+ loc->start = scanner_cursor;
+
+ for (p = token; p < lim; p++)
+ switch (*p)
+ {
+ case '\n':
+ line += line < INT_MAX;
+ column = 1;
+ p0 = p + 1;
+ break;
+
+ case '\t':
+ column = add_column_width (column, p0, p - p0);
+ column = add_column_width (column, NULL, 8 - ((column - 1) & 7));
+ p0 = p + 1;
+ break;
+
+ default:
+ break;
+ }
+
+ scanner_cursor.line = line;
+ scanner_cursor.column = column = add_column_width (column, p0, p - p0);
+
+ loc->end = scanner_cursor;
+
+ if (line == INT_MAX && loc->start.line != INT_MAX)
+ warn_at (*loc, _("line number overflow"));
+ if (column == INT_MAX && loc->start.column != INT_MAX)
+ warn_at (*loc, _("column number overflow"));
+}
+
+
+/* Read bytes from FP into buffer BUF of size SIZE. Return the
+ number of bytes read. Remove '\r' from input, treating \r\n
+ and isolated \r as \n. */
+
+static size_t
+no_cr_read (FILE *fp, char *buf, size_t size)
+{
+ size_t bytes_read = fread (buf, 1, size, fp);
+ if (bytes_read)
+ {
+ char *w = memchr (buf, '\r', bytes_read);
+ if (w)
+ {
+ char const *r = ++w;
+ char const *lim = buf + bytes_read;
+
+ for (;;)
+ {
+ /* Found an '\r'. Treat it like '\n', but ignore any
+ '\n' that immediately follows. */
+ w[-1] = '\n';
+ if (r == lim)
+ {
+ int ch = getc (fp);
+ if (ch != '\n' && ungetc (ch, fp) != ch)
+ break;
+ }
+ else if (*r == '\n')
+ r++;
+
+ /* Copy until the next '\r'. */
+ do
+ {
+ if (r == lim)
+ return w - buf;
+ }
+ while ((*w++ = *r++) != '\r');
+ }
+
+ return w - buf;
+ }
+ }
+
+ return bytes_read;
+}
+
+
+/*------------------------------------------------------------------.
+| TEXT is pointing to a wannabee semantic value (i.e., a `$'). |
+| |
+| Possible inputs: $[<TYPENAME>]($|integer) |
+| |
+| Output to OBSTACK_FOR_STRING a reference to this semantic value. |
+`------------------------------------------------------------------*/
+
+static inline bool
+handle_action_dollar (char *text, location loc)
+{
+ const char *type_name = NULL;
+ char *cp = text + 1;
+
+ if (! current_rule)
+ return false;
+
+ /* Get the type name if explicit. */
+ if (*cp == '<')
+ {
+ type_name = ++cp;
+ while (*cp != '>')
+ ++cp;
+ *cp = '\0';
+ ++cp;
+ }
+
+ if (*cp == '$')
+ {
+ if (!type_name)
+ type_name = symbol_list_n_type_name_get (current_rule, loc, 0);
+ if (!type_name && typed)
+ complain_at (loc, _("$$ of `%s' has no declared type"),
+ current_rule->sym->tag);
+ if (!type_name)
+ type_name = "";
+ obstack_fgrow1 (&obstack_for_string,
+ "]b4_lhs_value([%s])[", type_name);
+ current_rule->used = true;
+ }
+ else
+ {
+ long int num = strtol (cp, NULL, 10);
+
+ if (1 - INT_MAX + rule_length <= num && num <= rule_length)
+ {
+ int n = num;
+ if (max_left_semantic_context < 1 - n)
+ max_left_semantic_context = 1 - n;
+ if (!type_name && 0 < n)
+ type_name = symbol_list_n_type_name_get (current_rule, loc, n);
+ if (!type_name && typed)
+ complain_at (loc, _("$%d of `%s' has no declared type"),
+ n, current_rule->sym->tag);
+ if (!type_name)
+ type_name = "";
+ obstack_fgrow3 (&obstack_for_string,
+ "]b4_rhs_value(%d, %d, [%s])[",
+ rule_length, n, type_name);
+ symbol_list_n_used_set (current_rule, n, true);
+ }
+ else
+ complain_at (loc, _("integer out of range: %s"), quote (text));
+ }
+
+ return true;
+}
+
+
+/*----------------------------------------------------------------.
+| Map `$?' onto the proper M4 symbol, depending on its TOKEN_TYPE |
+| (are we in an action?). |
+`----------------------------------------------------------------*/
+
+static void
+handle_dollar (int token_type, char *text, location loc)
+{
+ switch (token_type)
+ {
+ case BRACED_CODE:
+ if (handle_action_dollar (text, loc))
+ return;
+ break;
+
+ case PERCENT_DESTRUCTOR:
+ case PERCENT_INITIAL_ACTION:
+ case PERCENT_PRINTER:
+ if (text[1] == '$')
+ {
+ obstack_sgrow (&obstack_for_string, "]b4_dollar_dollar[");
+ return;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ complain_at (loc, _("invalid value: %s"), quote (text));
+}
+
+
+/*------------------------------------------------------.
+| TEXT is a location token (i.e., a `@...'). Output to |
+| OBSTACK_FOR_STRING a reference to this location. |
+`------------------------------------------------------*/
+
+static inline bool
+handle_action_at (char *text, location loc)
+{
+ char *cp = text + 1;
+ locations_flag = true;
+
+ if (! current_rule)
+ return false;
+
+ if (*cp == '$')
+ obstack_sgrow (&obstack_for_string, "]b4_lhs_location[");
+ else
+ {
+ long int num = strtol (cp, NULL, 10);
+
+ if (1 - INT_MAX + rule_length <= num && num <= rule_length)
+ {
+ int n = num;
+ obstack_fgrow2 (&obstack_for_string, "]b4_rhs_location(%d, %d)[",
+ rule_length, n);
+ }
+ else
+ complain_at (loc, _("integer out of range: %s"), quote (text));
+ }
+
+ return true;
+}
+
+
+/*----------------------------------------------------------------.
+| Map `@?' onto the proper M4 symbol, depending on its TOKEN_TYPE |
+| (are we in an action?). |
+`----------------------------------------------------------------*/
+
+static void
+handle_at (int token_type, char *text, location loc)
+{
+ switch (token_type)
+ {
+ case BRACED_CODE:
+ handle_action_at (text, loc);
+ return;
+
+ case PERCENT_INITIAL_ACTION:
+ case PERCENT_DESTRUCTOR:
+ case PERCENT_PRINTER:
+ if (text[1] == '$')
+ {
+ obstack_sgrow (&obstack_for_string, "]b4_at_dollar[");
+ return;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ complain_at (loc, _("invalid value: %s"), quote (text));
+}
+
+
+/*------------------------------------------------------.
+| Scan NUMBER for a base-BASE integer at location LOC. |
+`------------------------------------------------------*/
+
+static unsigned long int
+scan_integer (char const *number, int base, location loc)
+{
+ verify (INT_MAX < ULONG_MAX);
+ unsigned long int num = strtoul (number, NULL, base);
+
+ if (INT_MAX < num)
+ {
+ complain_at (loc, _("integer out of range: %s"), quote (number));
+ num = INT_MAX;
+ }
+
+ return num;
+}
+
+
+/*------------------------------------------------------------------.
+| Convert universal character name UCN to a single-byte character, |
+| and return that character. Return -1 if UCN does not correspond |
+| to a single-byte character. |
+`------------------------------------------------------------------*/
+
+static int
+convert_ucn_to_byte (char const *ucn)
+{
+ verify (UCHAR_MAX <= INT_MAX);
+ unsigned long int code = strtoul (ucn + 2, NULL, 16);
+
+ /* FIXME: Currently we assume Unicode-compatible unibyte characters
+ on ASCII hosts (i.e., Latin-1 on hosts with 8-bit bytes). On
+ non-ASCII hosts we support only the portable C character set.
+ These limitations should be removed once we add support for
+ multibyte characters. */
+
+ if (UCHAR_MAX < code)
+ return -1;
+
+#if ! ('$' == 0x24 && '@' == 0x40 && '`' == 0x60 && '~' == 0x7e)
+ {
+ /* A non-ASCII host. Use CODE to index into a table of the C
+ basic execution character set, which is guaranteed to exist on
+ all Standard C platforms. This table also includes '$', '@',
+ and '`', which are not in the basic execution character set but
+ which are unibyte characters on all the platforms that we know
+ about. */
+ static signed char const table[] =
+ {
+ '\0', -1, -1, -1, -1, -1, -1, '\a',
+ '\b', '\t', '\n', '\v', '\f', '\r', -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ ' ', '!', '"', '#', '$', '%', '&', '\'',
+ '(', ')', '*', '+', ',', '-', '.', '/',
+ '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', ':', ';', '<', '=', '>', '?',
+ '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
+ 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
+ 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
+ 'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
+ '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
+ 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
+ 'x', 'y', 'z', '{', '|', '}', '~'
+ };
+
+ code = code < sizeof table ? table[code] : -1;
+ }
+#endif
+
+ return code;
+}
+
+
+/*----------------------------------------------------------------.
+| Handle `#line INT "FILE"'. ARGS has already skipped `#line '. |
+`----------------------------------------------------------------*/
+
+static void
+handle_syncline (char *args, location loc)
+{
+ char *after_num;
+ unsigned long int lineno = strtoul (args, &after_num, 10);
+ char *file = strchr (after_num, '"') + 1;
+ *strchr (file, '"') = '\0';
+ if (INT_MAX <= lineno)
+ {
+ warn_at (loc, _("line number overflow"));
+ lineno = INT_MAX;
+ }
+ scanner_cursor.file = current_file = uniqstr_new (file);
+ scanner_cursor.line = lineno;
+ scanner_cursor.column = 1;
+}
+
+
+/*---------------------------------.
+| Report a rule that is too long. |
+`---------------------------------*/
+
+static void
+rule_length_overflow (location loc)
+{
+ fatal_at (loc, _("rule is too long"));
+}
+
+
+/*----------------------------------------------------------------.
+| For a token or comment starting at START, report message MSGID, |
+| which should say that an end marker was found before |
+| the expected TOKEN_END. |
+`----------------------------------------------------------------*/
+
+static void
+unexpected_end (boundary start, char const *msgid, char const *token_end)
+{
+ location loc;
+ loc.start = start;
+ loc.end = scanner_cursor;
+ complain_at (loc, _(msgid), token_end);
+}
+
+
+/*------------------------------------------------------------------------.
+| Report an unexpected EOF in a token or comment starting at START. |
+| An end of file was encountered and the expected TOKEN_END was missing. |
+`------------------------------------------------------------------------*/
+
+static void
+unexpected_eof (boundary start, char const *token_end)
+{
+ unexpected_end (start, N_("missing `%s' at end of file"), token_end);
+}
+
+
+/*----------------------------------------.
+| Likewise, but for unexpected newlines. |
+`----------------------------------------*/
+
+static void
+unexpected_newline (boundary start, char const *token_end)
+{
+ unexpected_end (start, N_("missing `%s' at end of line"), token_end);
+}
+
+
+/*-------------------------.
+| Initialize the scanner. |
+`-------------------------*/
+
+void
+scanner_initialize (void)
+{
+ obstack_init (&obstack_for_string);
+}
+
+
+/*-----------------------------------------------.
+| Free all the memory allocated to the scanner. |
+`-----------------------------------------------*/
+
+void
+scanner_free (void)
+{
+ obstack_free (&obstack_for_string, 0);
+ /* Reclaim Flex's buffers. */
+ gram__delete_buffer (YY_CURRENT_BUFFER);
+}
+
diff --git a/src/scan-gram.l b/src/scan-gram.l
new file mode 100644
index 0000000..cf704c7
--- /dev/null
+++ b/src/scan-gram.l
@@ -0,0 +1,1167 @@
+/* Bison Grammar Scanner -*- C -*-
+
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301 USA
+*/
+
+%option debug nodefault nounput noyywrap never-interactive
+%option prefix="gram_" outfile="lex.yy.c"
+
+%{
+/* Work around a bug in flex 2.5.31. See Debian bug 333231
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>. */
+#undef gram_wrap
+#define gram_wrap() 1
+
+#include "system.h"
+
+#include <mbswidth.h>
+#include <quote.h>
+
+#include "complain.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "quotearg.h"
+#include "reader.h"
+#include "uniqstr.h"
+
+#define YY_USER_INIT \
+ do \
+ { \
+ scanner_cursor.file = current_file; \
+ scanner_cursor.line = 1; \
+ scanner_cursor.column = 1; \
+ code_start = scanner_cursor; \
+ } \
+ while (0)
+
+/* Pacify "gcc -Wmissing-prototypes" when flex 2.5.31 is used. */
+int gram_get_lineno (void);
+FILE *gram_get_in (void);
+FILE *gram_get_out (void);
+int gram_get_leng (void);
+char *gram_get_text (void);
+void gram_set_lineno (int);
+void gram_set_in (FILE *);
+void gram_set_out (FILE *);
+int gram_get_debug (void);
+void gram_set_debug (int);
+int gram_lex_destroy (void);
+
+/* Location of scanner cursor. */
+boundary scanner_cursor;
+
+static void adjust_location (location *, char const *, size_t);
+#define YY_USER_ACTION adjust_location (loc, yytext, yyleng);
+
+static size_t no_cr_read (FILE *, char *, size_t);
+#define YY_INPUT(buf, result, size) ((result) = no_cr_read (yyin, buf, size))
+
+
+/* OBSTACK_FOR_STRING -- Used to store all the characters that we need to
+ keep (to construct ID, STRINGS etc.). Use the following macros to
+ use it.
+
+ Use STRING_GROW to append what has just been matched, and
+ STRING_FINISH to end the string (it puts the ending 0).
+ STRING_FINISH also stores this string in LAST_STRING, which can be
+ used, and which is used by STRING_FREE to free the last string. */
+
+static struct obstack obstack_for_string;
+
+/* A string representing the most recently saved token. */
+char *last_string;
+
+/* The location of the most recently saved token, if it was a
+ BRACED_CODE token; otherwise, this has an unspecified value. */
+location last_braced_code_loc;
+
+#define STRING_GROW \
+ obstack_grow (&obstack_for_string, yytext, yyleng)
+
+#define STRING_FINISH \
+ do { \
+ obstack_1grow (&obstack_for_string, '\0'); \
+ last_string = obstack_finish (&obstack_for_string); \
+ } while (0)
+
+#define STRING_FREE \
+ obstack_free (&obstack_for_string, last_string)
+
+void
+scanner_last_string_free (void)
+{
+ STRING_FREE;
+}
+
+/* Within well-formed rules, RULE_LENGTH is the number of values in
+ the current rule so far, which says where to find `$0' with respect
+ to the top of the stack. It is not the same as the rule->length in
+ the case of mid rule actions.
+
+ Outside of well-formed rules, RULE_LENGTH has an undefined value. */
+static int rule_length;
+
+static void rule_length_overflow (location) __attribute__ ((__noreturn__));
+
+/* Increment the rule length by one, checking for overflow. */
+static inline void
+increment_rule_length (location loc)
+{
+ rule_length++;
+
+ /* Don't allow rule_length == INT_MAX, since that might cause
+ confusion with strtol if INT_MAX == LONG_MAX. */
+ if (rule_length == INT_MAX)
+ rule_length_overflow (loc);
+}
+
+static void handle_dollar (int token_type, char *cp, location loc);
+static void handle_at (int token_type, char *cp, location loc);
+static void handle_syncline (char *, location);
+static unsigned long int scan_integer (char const *p, int base, location loc);
+static int convert_ucn_to_byte (char const *hex_text);
+static void unexpected_eof (boundary, char const *);
+static void unexpected_newline (boundary, char const *);
+
+%}
+%x SC_COMMENT SC_LINE_COMMENT SC_YACC_COMMENT
+%x SC_STRING SC_CHARACTER
+%x SC_AFTER_IDENTIFIER
+%x SC_ESCAPED_STRING SC_ESCAPED_CHARACTER
+%x SC_PRE_CODE SC_BRACED_CODE SC_PROLOGUE SC_EPILOGUE
+
+letter [.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_]
+id {letter}({letter}|[0-9])*
+directive %{letter}({letter}|[0-9]|-)*
+int [0-9]+
+
+/* POSIX says that a tag must be both an id and a C union member, but
+ historically almost any character is allowed in a tag. We disallow
+ NUL and newline, as this simplifies our implementation. */
+tag [^\0\n>]+
+
+/* Zero or more instances of backslash-newline. Following GCC, allow
+ white space between the backslash and the newline. */
+splice (\\[ \f\t\v]*\n)*
+
+%%
+%{
+ /* Nesting level of the current code in braces. */
+ int braces_level IF_LINT (= 0);
+
+ /* Parent context state, when applicable. */
+ int context_state IF_LINT (= 0);
+
+ /* Token type to return, when applicable. */
+ int token_type IF_LINT (= 0);
+
+ /* Location of most recent identifier, when applicable. */
+ location id_loc IF_LINT (= empty_location);
+
+ /* Where containing code started, when applicable. Its initial
+ value is relevant only when yylex is invoked in the SC_EPILOGUE
+ start condition. */
+ boundary code_start = scanner_cursor;
+
+ /* Where containing comment or string or character literal started,
+ when applicable. */
+ boundary token_start IF_LINT (= scanner_cursor);
+%}
+
+
+ /*-----------------------.
+ | Scanning white space. |
+ `-----------------------*/
+
+<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>
+{
+ /* Comments and white space. */
+ "," warn_at (*loc, _("stray `,' treated as white space"));
+ [ \f\n\t\v] |
+ "//".* ;
+ "/*" {
+ token_start = loc->start;
+ context_state = YY_START;
+ BEGIN SC_YACC_COMMENT;
+ }
+
+ /* #line directives are not documented, and may be withdrawn or
+ modified in future versions of Bison. */
+ ^"#line "{int}" \"".*"\"\n" {
+ handle_syncline (yytext + sizeof "#line " - 1, *loc);
+ }
+}
+
+
+ /*----------------------------.
+ | Scanning Bison directives. |
+ `----------------------------*/
+<INITIAL>
+{
+ "%binary" return PERCENT_NONASSOC;
+ "%debug" return PERCENT_DEBUG;
+ "%default"[-_]"prec" return PERCENT_DEFAULT_PREC;
+ "%define" return PERCENT_DEFINE;
+ "%defines" return PERCENT_DEFINES;
+ "%destructor" token_type = PERCENT_DESTRUCTOR; BEGIN SC_PRE_CODE;
+ "%dprec" return PERCENT_DPREC;
+ "%error"[-_]"verbose" return PERCENT_ERROR_VERBOSE;
+ "%expect" return PERCENT_EXPECT;
+ "%expect"[-_]"rr" return PERCENT_EXPECT_RR;
+ "%file-prefix" return PERCENT_FILE_PREFIX;
+ "%fixed"[-_]"output"[-_]"files" return PERCENT_YACC;
+ "%initial-action" token_type = PERCENT_INITIAL_ACTION; BEGIN SC_PRE_CODE;
+ "%glr-parser" return PERCENT_GLR_PARSER;
+ "%left" return PERCENT_LEFT;
+ "%lex-param" token_type = PERCENT_LEX_PARAM; BEGIN SC_PRE_CODE;
+ "%locations" return PERCENT_LOCATIONS;
+ "%merge" return PERCENT_MERGE;
+ "%name"[-_]"prefix" return PERCENT_NAME_PREFIX;
+ "%no"[-_]"default"[-_]"prec" return PERCENT_NO_DEFAULT_PREC;
+ "%no"[-_]"lines" return PERCENT_NO_LINES;
+ "%nonassoc" return PERCENT_NONASSOC;
+ "%nondeterministic-parser" return PERCENT_NONDETERMINISTIC_PARSER;
+ "%nterm" return PERCENT_NTERM;
+ "%output" return PERCENT_OUTPUT;
+ "%parse-param" token_type = PERCENT_PARSE_PARAM; BEGIN SC_PRE_CODE;
+ "%prec" rule_length--; return PERCENT_PREC;
+ "%printer" token_type = PERCENT_PRINTER; BEGIN SC_PRE_CODE;
+ "%pure"[-_]"parser" return PERCENT_PURE_PARSER;
+ "%require" return PERCENT_REQUIRE;
+ "%right" return PERCENT_RIGHT;
+ "%skeleton" return PERCENT_SKELETON;
+ "%start" return PERCENT_START;
+ "%term" return PERCENT_TOKEN;
+ "%token" return PERCENT_TOKEN;
+ "%token"[-_]"table" return PERCENT_TOKEN_TABLE;
+ "%type" return PERCENT_TYPE;
+ "%union" token_type = PERCENT_UNION; BEGIN SC_PRE_CODE;
+ "%verbose" return PERCENT_VERBOSE;
+ "%yacc" return PERCENT_YACC;
+
+ {directive} {
+ complain_at (*loc, _("invalid directive: %s"), quote (yytext));
+ }
+
+ "=" return EQUAL;
+ "|" rule_length = 0; return PIPE;
+ ";" return SEMICOLON;
+
+ {id} {
+ val->symbol = symbol_get (yytext, *loc);
+ id_loc = *loc;
+ increment_rule_length (*loc);
+ BEGIN SC_AFTER_IDENTIFIER;
+ }
+
+ {int} {
+ val->integer = scan_integer (yytext, 10, *loc);
+ return INT;
+ }
+ 0[xX][0-9abcdefABCDEF]+ {
+ val->integer = scan_integer (yytext, 16, *loc);
+ return INT;
+ }
+
+ /* Characters. We don't check there is only one. */
+ "'" STRING_GROW; token_start = loc->start; BEGIN SC_ESCAPED_CHARACTER;
+
+ /* Strings. */
+ "\"" token_start = loc->start; BEGIN SC_ESCAPED_STRING;
+
+ /* Prologue. */
+ "%{" code_start = loc->start; BEGIN SC_PROLOGUE;
+
+ /* Code in between braces. */
+ "{" {
+ if (current_rule && current_rule->action)
+ grammar_midrule_action ();
+ STRING_GROW;
+ token_type = BRACED_CODE;
+ braces_level = 0;
+ code_start = loc->start;
+ BEGIN SC_BRACED_CODE;
+ }
+
+ /* A type. */
+ "<"{tag}">" {
+ obstack_grow (&obstack_for_string, yytext + 1, yyleng - 2);
+ STRING_FINISH;
+ val->uniqstr = uniqstr_new (last_string);
+ STRING_FREE;
+ return TYPE;
+ }
+
+ "%%" {
+ static int percent_percent_count;
+ if (++percent_percent_count == 2)
+ BEGIN SC_EPILOGUE;
+ return PERCENT_PERCENT;
+ }
+
+ . {
+ complain_at (*loc, _("invalid character: %s"), quote (yytext));
+ }
+
+ <<EOF>> {
+ loc->start = loc->end = scanner_cursor;
+ yyterminate ();
+ }
+}
+
+
+ /*-----------------------------------------------------------------.
+ | Scanning after an identifier, checking whether a colon is next. |
+ `-----------------------------------------------------------------*/
+
+<SC_AFTER_IDENTIFIER>
+{
+ ":" {
+ rule_length = 0;
+ *loc = id_loc;
+ BEGIN INITIAL;
+ return ID_COLON;
+ }
+ . {
+ scanner_cursor.column -= mbsnwidth (yytext, yyleng, 0);
+ yyless (0);
+ *loc = id_loc;
+ BEGIN INITIAL;
+ return ID;
+ }
+ <<EOF>> {
+ *loc = id_loc;
+ BEGIN INITIAL;
+ return ID;
+ }
+}
+
+
+ /*---------------------------------------------------------------.
+ | Scanning a Yacc comment. The initial `/ *' is already eaten. |
+ `---------------------------------------------------------------*/
+
+<SC_YACC_COMMENT>
+{
+ "*/" BEGIN context_state;
+ .|\n ;
+ <<EOF>> unexpected_eof (token_start, "*/"); BEGIN context_state;
+}
+
+
+ /*------------------------------------------------------------.
+ | Scanning a C comment. The initial `/ *' is already eaten. |
+ `------------------------------------------------------------*/
+
+<SC_COMMENT>
+{
+ "*"{splice}"/" STRING_GROW; BEGIN context_state;
+ <<EOF>> unexpected_eof (token_start, "*/"); BEGIN context_state;
+}
+
+
+ /*--------------------------------------------------------------.
+ | Scanning a line comment. The initial `//' is already eaten. |
+ `--------------------------------------------------------------*/
+
+<SC_LINE_COMMENT>
+{
+ "\n" STRING_GROW; BEGIN context_state;
+ {splice} STRING_GROW;
+ <<EOF>> BEGIN context_state;
+}
+
+
+ /*------------------------------------------------.
+ | Scanning a Bison string, including its escapes. |
+ | The initial quote is already eaten. |
+ `------------------------------------------------*/
+
+<SC_ESCAPED_STRING>
+{
+ "\"" {
+ STRING_FINISH;
+ loc->start = token_start;
+ val->chars = last_string;
+ increment_rule_length (*loc);
+ BEGIN INITIAL;
+ return STRING;
+ }
+ \n unexpected_newline (token_start, "\""); BEGIN INITIAL;
+ <<EOF>> unexpected_eof (token_start, "\""); BEGIN INITIAL;
+}
+
+ /*----------------------------------------------------------.
+ | Scanning a Bison character literal, decoding its escapes. |
+ | The initial quote is already eaten. |
+ `----------------------------------------------------------*/
+
+<SC_ESCAPED_CHARACTER>
+{
+ "'" {
+ unsigned char last_string_1;
+ STRING_GROW;
+ STRING_FINISH;
+ loc->start = token_start;
+ val->symbol = symbol_get (quotearg_style (escape_quoting_style,
+ last_string),
+ *loc);
+ symbol_class_set (val->symbol, token_sym, *loc, false);
+ last_string_1 = last_string[1];
+ symbol_user_token_number_set (val->symbol, last_string_1, *loc);
+ STRING_FREE;
+ increment_rule_length (*loc);
+ BEGIN INITIAL;
+ return ID;
+ }
+ \n unexpected_newline (token_start, "'"); BEGIN INITIAL;
+ <<EOF>> unexpected_eof (token_start, "'"); BEGIN INITIAL;
+}
+
+<SC_ESCAPED_CHARACTER,SC_ESCAPED_STRING>
+{
+ \0 complain_at (*loc, _("invalid null character"));
+}
+
+
+ /*----------------------------.
+ | Decode escaped characters. |
+ `----------------------------*/
+
+<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>
+{
+ \\[0-7]{1,3} {
+ unsigned long int c = strtoul (yytext + 1, NULL, 8);
+ if (UCHAR_MAX < c)
+ complain_at (*loc, _("invalid escape sequence: %s"), quote (yytext));
+ else if (! c)
+ complain_at (*loc, _("invalid null character: %s"), quote (yytext));
+ else
+ obstack_1grow (&obstack_for_string, c);
+ }
+
+ \\x[0-9abcdefABCDEF]+ {
+ verify (UCHAR_MAX < ULONG_MAX);
+ unsigned long int c = strtoul (yytext + 2, NULL, 16);
+ if (UCHAR_MAX < c)
+ complain_at (*loc, _("invalid escape sequence: %s"), quote (yytext));
+ else if (! c)
+ complain_at (*loc, _("invalid null character: %s"), quote (yytext));
+ else
+ obstack_1grow (&obstack_for_string, c);
+ }
+
+ \\a obstack_1grow (&obstack_for_string, '\a');
+ \\b obstack_1grow (&obstack_for_string, '\b');
+ \\f obstack_1grow (&obstack_for_string, '\f');
+ \\n obstack_1grow (&obstack_for_string, '\n');
+ \\r obstack_1grow (&obstack_for_string, '\r');
+ \\t obstack_1grow (&obstack_for_string, '\t');
+ \\v obstack_1grow (&obstack_for_string, '\v');
+
+ /* \\[\"\'?\\] would be shorter, but it confuses xgettext. */
+ \\("\""|"'"|"?"|"\\") obstack_1grow (&obstack_for_string, yytext[1]);
+
+ \\(u|U[0-9abcdefABCDEF]{4})[0-9abcdefABCDEF]{4} {
+ int c = convert_ucn_to_byte (yytext);
+ if (c < 0)
+ complain_at (*loc, _("invalid escape sequence: %s"), quote (yytext));
+ else if (! c)
+ complain_at (*loc, _("invalid null character: %s"), quote (yytext));
+ else
+ obstack_1grow (&obstack_for_string, c);
+ }
+ \\(.|\n) {
+ complain_at (*loc, _("unrecognized escape sequence: %s"), quote (yytext));
+ STRING_GROW;
+ }
+}
+
+ /*--------------------------------------------.
+ | Scanning user-code characters and strings. |
+ `--------------------------------------------*/
+
+<SC_CHARACTER,SC_STRING>
+{
+ {splice}|\\{splice}[^\n$@\[\]] STRING_GROW;
+}
+
+<SC_CHARACTER>
+{
+ "'" STRING_GROW; BEGIN context_state;
+ \n unexpected_newline (token_start, "'"); BEGIN context_state;
+ <<EOF>> unexpected_eof (token_start, "'"); BEGIN context_state;
+}
+
+<SC_STRING>
+{
+ "\"" STRING_GROW; BEGIN context_state;
+ \n unexpected_newline (token_start, "\""); BEGIN context_state;
+ <<EOF>> unexpected_eof (token_start, "\""); BEGIN context_state;
+}
+
+
+ /*---------------------------------------------------.
+ | Strings, comments etc. can be found in user code. |
+ `---------------------------------------------------*/
+
+<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>
+{
+ "'" {
+ STRING_GROW;
+ context_state = YY_START;
+ token_start = loc->start;
+ BEGIN SC_CHARACTER;
+ }
+ "\"" {
+ STRING_GROW;
+ context_state = YY_START;
+ token_start = loc->start;
+ BEGIN SC_STRING;
+ }
+ "/"{splice}"*" {
+ STRING_GROW;
+ context_state = YY_START;
+ token_start = loc->start;
+ BEGIN SC_COMMENT;
+ }
+ "/"{splice}"/" {
+ STRING_GROW;
+ context_state = YY_START;
+ BEGIN SC_LINE_COMMENT;
+ }
+}
+
+
+ /*---------------------------------------------------------------.
+ | Scanning after %union etc., possibly followed by white space. |
+ | For %union only, allow arbitrary C code to appear before the |
+ | following brace, as an extension to POSIX. |
+ `---------------------------------------------------------------*/
+
+<SC_PRE_CODE>
+{
+ . {
+ bool valid = yytext[0] == '{' || token_type == PERCENT_UNION;
+ scanner_cursor.column -= mbsnwidth (yytext, yyleng, 0);
+ yyless (0);
+
+ if (valid)
+ {
+ braces_level = -1;
+ code_start = loc->start;
+ BEGIN SC_BRACED_CODE;
+ }
+ else
+ {
+ complain_at (*loc, _("missing `{' in %s"),
+ token_name (token_type));
+ obstack_sgrow (&obstack_for_string, "{}");
+ STRING_FINISH;
+ val->chars = last_string;
+ BEGIN INITIAL;
+ return token_type;
+ }
+ }
+
+ <<EOF>> unexpected_eof (scanner_cursor, "{}"); BEGIN INITIAL;
+}
+
+
+ /*---------------------------------------------------------------.
+ | Scanning some code in braces (%union and actions). The initial |
+ | "{" is already eaten. |
+ `---------------------------------------------------------------*/
+
+<SC_BRACED_CODE>
+{
+ "{"|"<"{splice}"%" STRING_GROW; braces_level++;
+ "%"{splice}">" STRING_GROW; braces_level--;
+ "}" {
+ bool outer_brace = --braces_level < 0;
+
+ /* As an undocumented Bison extension, append `;' before the last
+ brace in braced code, so that the user code can omit trailing
+ `;'. But do not append `;' if emulating Yacc, since Yacc does
+ not append one.
+
+ FIXME: Bison should warn if a semicolon seems to be necessary
+ here, and should omit the semicolon if it seems unnecessary
+ (e.g., after ';', '{', or '}', each followed by comments or
+ white space). Such a warning shouldn't depend on --yacc; it
+ should depend on a new --pedantic option, which would cause
+ Bison to warn if it detects an extension to POSIX. --pedantic
+ should also diagnose other Bison extensions like %yacc.
+ Perhaps there should also be a GCC-style --pedantic-errors
+ option, so that such warnings are diagnosed as errors. */
+ if (outer_brace && token_type == BRACED_CODE && ! yacc_flag)
+ obstack_1grow (&obstack_for_string, ';');
+
+ obstack_1grow (&obstack_for_string, '}');
+
+ if (outer_brace)
+ {
+ STRING_FINISH;
+ loc->start = code_start;
+ val->chars = last_string;
+ increment_rule_length (*loc);
+ last_braced_code_loc = *loc;
+ BEGIN INITIAL;
+ return token_type;
+ }
+ }
+
+ /* Tokenize `<<%' correctly (as `<<' `%') rather than incorrrectly
+ (as `<' `<%'). */
+ "<"{splice}"<" STRING_GROW;
+
+ "$"("<"{tag}">")?(-?[0-9]+|"$") handle_dollar (token_type, yytext, *loc);
+ "@"(-?[0-9]+|"$") handle_at (token_type, yytext, *loc);
+
+ "$" {
+ warn_at (*loc, _("stray `$'"));
+ obstack_sgrow (&obstack_for_string, "$][");
+ }
+ "@" {
+ warn_at (*loc, _("stray `@'"));
+ obstack_sgrow (&obstack_for_string, "@@");
+ }
+
+ <<EOF>> unexpected_eof (code_start, "}"); BEGIN INITIAL;
+}
+
+
+ /*--------------------------------------------------------------.
+ | Scanning some prologue: from "%{" (already scanned) to "%}". |
+ `--------------------------------------------------------------*/
+
+<SC_PROLOGUE>
+{
+ "%}" {
+ STRING_FINISH;
+ loc->start = code_start;
+ val->chars = last_string;
+ BEGIN INITIAL;
+ return PROLOGUE;
+ }
+
+ <<EOF>> unexpected_eof (code_start, "%}"); BEGIN INITIAL;
+}
+
+
+ /*---------------------------------------------------------------.
+ | Scanning the epilogue (everything after the second "%%", which |
+ | has already been eaten). |
+ `---------------------------------------------------------------*/
+
+<SC_EPILOGUE>
+{
+ <<EOF>> {
+ STRING_FINISH;
+ loc->start = code_start;
+ val->chars = last_string;
+ BEGIN INITIAL;
+ return EPILOGUE;
+ }
+}
+
+
+ /*-----------------------------------------.
+ | Escape M4 quoting characters in C code. |
+ `-----------------------------------------*/
+
+<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>
+{
+ \$ obstack_sgrow (&obstack_for_string, "$][");
+ \@ obstack_sgrow (&obstack_for_string, "@@");
+ \[ obstack_sgrow (&obstack_for_string, "@{");
+ \] obstack_sgrow (&obstack_for_string, "@}");
+}
+
+
+ /*-----------------------------------------------------.
+ | By default, grow the string obstack with the input. |
+ `-----------------------------------------------------*/
+
+<SC_COMMENT,SC_LINE_COMMENT,SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE,SC_STRING,SC_CHARACTER,SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>. |
+<SC_COMMENT,SC_LINE_COMMENT,SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>\n STRING_GROW;
+
+%%
+
+/* Keeps track of the maximum number of semantic values to the left of
+ a handle (those referenced by $0, $-1, etc.) are required by the
+ semantic actions of this grammar. */
+int max_left_semantic_context = 0;
+
+/* If BUF is null, add BUFSIZE (which in this case must be less than
+ INT_MAX) to COLUMN; otherwise, add mbsnwidth (BUF, BUFSIZE, 0) to
+ COLUMN. If an overflow occurs, or might occur but is undetectable,
+ return INT_MAX. Assume COLUMN is nonnegative. */
+
+static inline int
+add_column_width (int column, char const *buf, size_t bufsize)
+{
+ size_t width;
+ unsigned int remaining_columns = INT_MAX - column;
+
+ if (buf)
+ {
+ if (INT_MAX / 2 <= bufsize)
+ return INT_MAX;
+ width = mbsnwidth (buf, bufsize, 0);
+ }
+ else
+ width = bufsize;
+
+ return width <= remaining_columns ? column + width : INT_MAX;
+}
+
+/* Set *LOC and adjust scanner cursor to account for token TOKEN of
+ size SIZE. */
+
+static void
+adjust_location (location *loc, char const *token, size_t size)
+{
+ int line = scanner_cursor.line;
+ int column = scanner_cursor.column;
+ char const *p0 = token;
+ char const *p = token;
+ char const *lim = token + size;
+
+ loc->start = scanner_cursor;
+
+ for (p = token; p < lim; p++)
+ switch (*p)
+ {
+ case '\n':
+ line += line < INT_MAX;
+ column = 1;
+ p0 = p + 1;
+ break;
+
+ case '\t':
+ column = add_column_width (column, p0, p - p0);
+ column = add_column_width (column, NULL, 8 - ((column - 1) & 7));
+ p0 = p + 1;
+ break;
+
+ default:
+ break;
+ }
+
+ scanner_cursor.line = line;
+ scanner_cursor.column = column = add_column_width (column, p0, p - p0);
+
+ loc->end = scanner_cursor;
+
+ if (line == INT_MAX && loc->start.line != INT_MAX)
+ warn_at (*loc, _("line number overflow"));
+ if (column == INT_MAX && loc->start.column != INT_MAX)
+ warn_at (*loc, _("column number overflow"));
+}
+
+
+/* Read bytes from FP into buffer BUF of size SIZE. Return the
+ number of bytes read. Remove '\r' from input, treating \r\n
+ and isolated \r as \n. */
+
+static size_t
+no_cr_read (FILE *fp, char *buf, size_t size)
+{
+ size_t bytes_read = fread (buf, 1, size, fp);
+ if (bytes_read)
+ {
+ char *w = memchr (buf, '\r', bytes_read);
+ if (w)
+ {
+ char const *r = ++w;
+ char const *lim = buf + bytes_read;
+
+ for (;;)
+ {
+ /* Found an '\r'. Treat it like '\n', but ignore any
+ '\n' that immediately follows. */
+ w[-1] = '\n';
+ if (r == lim)
+ {
+ int ch = getc (fp);
+ if (ch != '\n' && ungetc (ch, fp) != ch)
+ break;
+ }
+ else if (*r == '\n')
+ r++;
+
+ /* Copy until the next '\r'. */
+ do
+ {
+ if (r == lim)
+ return w - buf;
+ }
+ while ((*w++ = *r++) != '\r');
+ }
+
+ return w - buf;
+ }
+ }
+
+ return bytes_read;
+}
+
+
+/*------------------------------------------------------------------.
+| TEXT is pointing to a wannabee semantic value (i.e., a `$'). |
+| |
+| Possible inputs: $[<TYPENAME>]($|integer) |
+| |
+| Output to OBSTACK_FOR_STRING a reference to this semantic value. |
+`------------------------------------------------------------------*/
+
+static inline bool
+handle_action_dollar (char *text, location loc)
+{
+ const char *type_name = NULL;
+ char *cp = text + 1;
+
+ if (! current_rule)
+ return false;
+
+ /* Get the type name if explicit. */
+ if (*cp == '<')
+ {
+ type_name = ++cp;
+ while (*cp != '>')
+ ++cp;
+ *cp = '\0';
+ ++cp;
+ }
+
+ if (*cp == '$')
+ {
+ if (!type_name)
+ type_name = symbol_list_n_type_name_get (current_rule, loc, 0);
+ if (!type_name && typed)
+ complain_at (loc, _("$$ of `%s' has no declared type"),
+ current_rule->sym->tag);
+ if (!type_name)
+ type_name = "";
+ obstack_fgrow1 (&obstack_for_string,
+ "]b4_lhs_value([%s])[", type_name);
+ current_rule->used = true;
+ }
+ else
+ {
+ long int num = strtol (cp, NULL, 10);
+
+ if (1 - INT_MAX + rule_length <= num && num <= rule_length)
+ {
+ int n = num;
+ if (max_left_semantic_context < 1 - n)
+ max_left_semantic_context = 1 - n;
+ if (!type_name && 0 < n)
+ type_name = symbol_list_n_type_name_get (current_rule, loc, n);
+ if (!type_name && typed)
+ complain_at (loc, _("$%d of `%s' has no declared type"),
+ n, current_rule->sym->tag);
+ if (!type_name)
+ type_name = "";
+ obstack_fgrow3 (&obstack_for_string,
+ "]b4_rhs_value(%d, %d, [%s])[",
+ rule_length, n, type_name);
+ symbol_list_n_used_set (current_rule, n, true);
+ }
+ else
+ complain_at (loc, _("integer out of range: %s"), quote (text));
+ }
+
+ return true;
+}
+
+
+/*----------------------------------------------------------------.
+| Map `$?' onto the proper M4 symbol, depending on its TOKEN_TYPE |
+| (are we in an action?). |
+`----------------------------------------------------------------*/
+
+static void
+handle_dollar (int token_type, char *text, location loc)
+{
+ switch (token_type)
+ {
+ case BRACED_CODE:
+ if (handle_action_dollar (text, loc))
+ return;
+ break;
+
+ case PERCENT_DESTRUCTOR:
+ case PERCENT_INITIAL_ACTION:
+ case PERCENT_PRINTER:
+ if (text[1] == '$')
+ {
+ obstack_sgrow (&obstack_for_string, "]b4_dollar_dollar[");
+ return;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ complain_at (loc, _("invalid value: %s"), quote (text));
+}
+
+
+/*------------------------------------------------------.
+| TEXT is a location token (i.e., a `@...'). Output to |
+| OBSTACK_FOR_STRING a reference to this location. |
+`------------------------------------------------------*/
+
+static inline bool
+handle_action_at (char *text, location loc)
+{
+ char *cp = text + 1;
+ locations_flag = true;
+
+ if (! current_rule)
+ return false;
+
+ if (*cp == '$')
+ obstack_sgrow (&obstack_for_string, "]b4_lhs_location[");
+ else
+ {
+ long int num = strtol (cp, NULL, 10);
+
+ if (1 - INT_MAX + rule_length <= num && num <= rule_length)
+ {
+ int n = num;
+ obstack_fgrow2 (&obstack_for_string, "]b4_rhs_location(%d, %d)[",
+ rule_length, n);
+ }
+ else
+ complain_at (loc, _("integer out of range: %s"), quote (text));
+ }
+
+ return true;
+}
+
+
+/*----------------------------------------------------------------.
+| Map `@?' onto the proper M4 symbol, depending on its TOKEN_TYPE |
+| (are we in an action?). |
+`----------------------------------------------------------------*/
+
+static void
+handle_at (int token_type, char *text, location loc)
+{
+ switch (token_type)
+ {
+ case BRACED_CODE:
+ handle_action_at (text, loc);
+ return;
+
+ case PERCENT_INITIAL_ACTION:
+ case PERCENT_DESTRUCTOR:
+ case PERCENT_PRINTER:
+ if (text[1] == '$')
+ {
+ obstack_sgrow (&obstack_for_string, "]b4_at_dollar[");
+ return;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ complain_at (loc, _("invalid value: %s"), quote (text));
+}
+
+
+/*------------------------------------------------------.
+| Scan NUMBER for a base-BASE integer at location LOC. |
+`------------------------------------------------------*/
+
+static unsigned long int
+scan_integer (char const *number, int base, location loc)
+{
+ verify (INT_MAX < ULONG_MAX);
+ unsigned long int num = strtoul (number, NULL, base);
+
+ if (INT_MAX < num)
+ {
+ complain_at (loc, _("integer out of range: %s"), quote (number));
+ num = INT_MAX;
+ }
+
+ return num;
+}
+
+
+/*------------------------------------------------------------------.
+| Convert universal character name UCN to a single-byte character, |
+| and return that character. Return -1 if UCN does not correspond |
+| to a single-byte character. |
+`------------------------------------------------------------------*/
+
+static int
+convert_ucn_to_byte (char const *ucn)
+{
+ verify (UCHAR_MAX <= INT_MAX);
+ unsigned long int code = strtoul (ucn + 2, NULL, 16);
+
+ /* FIXME: Currently we assume Unicode-compatible unibyte characters
+ on ASCII hosts (i.e., Latin-1 on hosts with 8-bit bytes). On
+ non-ASCII hosts we support only the portable C character set.
+ These limitations should be removed once we add support for
+ multibyte characters. */
+
+ if (UCHAR_MAX < code)
+ return -1;
+
+#if ! ('$' == 0x24 && '@' == 0x40 && '`' == 0x60 && '~' == 0x7e)
+ {
+ /* A non-ASCII host. Use CODE to index into a table of the C
+ basic execution character set, which is guaranteed to exist on
+ all Standard C platforms. This table also includes '$', '@',
+ and '`', which are not in the basic execution character set but
+ which are unibyte characters on all the platforms that we know
+ about. */
+ static signed char const table[] =
+ {
+ '\0', -1, -1, -1, -1, -1, -1, '\a',
+ '\b', '\t', '\n', '\v', '\f', '\r', -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ ' ', '!', '"', '#', '$', '%', '&', '\'',
+ '(', ')', '*', '+', ',', '-', '.', '/',
+ '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', ':', ';', '<', '=', '>', '?',
+ '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
+ 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
+ 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
+ 'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
+ '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
+ 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
+ 'x', 'y', 'z', '{', '|', '}', '~'
+ };
+
+ code = code < sizeof table ? table[code] : -1;
+ }
+#endif
+
+ return code;
+}
+
+
+/*----------------------------------------------------------------.
+| Handle `#line INT "FILE"'. ARGS has already skipped `#line '. |
+`----------------------------------------------------------------*/
+
+static void
+handle_syncline (char *args, location loc)
+{
+ char *after_num;
+ unsigned long int lineno = strtoul (args, &after_num, 10);
+ char *file = strchr (after_num, '"') + 1;
+ *strchr (file, '"') = '\0';
+ if (INT_MAX <= lineno)
+ {
+ warn_at (loc, _("line number overflow"));
+ lineno = INT_MAX;
+ }
+ scanner_cursor.file = current_file = uniqstr_new (file);
+ scanner_cursor.line = lineno;
+ scanner_cursor.column = 1;
+}
+
+
+/*---------------------------------.
+| Report a rule that is too long. |
+`---------------------------------*/
+
+static void
+rule_length_overflow (location loc)
+{
+ fatal_at (loc, _("rule is too long"));
+}
+
+
+/*----------------------------------------------------------------.
+| For a token or comment starting at START, report message MSGID, |
+| which should say that an end marker was found before |
+| the expected TOKEN_END. |
+`----------------------------------------------------------------*/
+
+static void
+unexpected_end (boundary start, char const *msgid, char const *token_end)
+{
+ location loc;
+ loc.start = start;
+ loc.end = scanner_cursor;
+ complain_at (loc, _(msgid), token_end);
+}
+
+
+/*------------------------------------------------------------------------.
+| Report an unexpected EOF in a token or comment starting at START. |
+| An end of file was encountered and the expected TOKEN_END was missing. |
+`------------------------------------------------------------------------*/
+
+static void
+unexpected_eof (boundary start, char const *token_end)
+{
+ unexpected_end (start, N_("missing `%s' at end of file"), token_end);
+}
+
+
+/*----------------------------------------.
+| Likewise, but for unexpected newlines. |
+`----------------------------------------*/
+
+static void
+unexpected_newline (boundary start, char const *token_end)
+{
+ unexpected_end (start, N_("missing `%s' at end of line"), token_end);
+}
+
+
+/*-------------------------.
+| Initialize the scanner. |
+`-------------------------*/
+
+void
+scanner_initialize (void)
+{
+ obstack_init (&obstack_for_string);
+}
+
+
+/*-----------------------------------------------.
+| Free all the memory allocated to the scanner. |
+`-----------------------------------------------*/
+
+void
+scanner_free (void)
+{
+ obstack_free (&obstack_for_string, 0);
+ /* Reclaim Flex's buffers. */
+ yy_delete_buffer (YY_CURRENT_BUFFER);
+}
diff --git a/src/scan-skel-c.c b/src/scan-skel-c.c
new file mode 100644
index 0000000..1a047cf
--- /dev/null
+++ b/src/scan-skel-c.c
@@ -0,0 +1,2 @@
+#include <config.h>
+#include "scan-skel.c"
diff --git a/src/scan-skel.c b/src/scan-skel.c
new file mode 100644
index 0000000..f2dd18c
--- /dev/null
+++ b/src/scan-skel.c
@@ -0,0 +1,2134 @@
+#line 2 "scan-skel.c"
+
+#line 4 "scan-skel.c"
+
+#define YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 31
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* %if-c++-only */
+/* %endif */
+
+/* %if-c-only */
+
+/* %endif */
+
+/* %if-c-only */
+
+/* %endif */
+
+/* First, we deal with platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+/* %if-c-only */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+/* %endif */
+
+/* %if-tables-serialization */
+/* %endif */
+/* end standard C headers. */
+
+/* %if-c-or-c++ */
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t;
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX (4294967295U)
+#endif
+
+#endif /* ! FLEXINT_H */
+
+/* %endif */
+
+/* %if-c++-only */
+/* %endif */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else /* ! __cplusplus */
+
+#if __STDC__
+
+#define YY_USE_CONST
+
+#endif /* __STDC__ */
+#endif /* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* %not-for-header */
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+/* %ok-for-header */
+
+/* %not-for-header */
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index. If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+/* %ok-for-header */
+
+/* %if-reentrant */
+/* %endif */
+
+/* %if-not-reentrant */
+
+/* %endif */
+
+/* Enter a start condition. This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN (yy_start) = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state. The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START (((yy_start) - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE skel_restart(skel_in )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+/* %if-not-reentrant */
+extern int skel_leng;
+/* %endif */
+
+/* %if-c-only */
+/* %if-not-reentrant */
+extern FILE *skel_in, *skel_out;
+/* %endif */
+/* %endif */
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+ #define YY_LESS_LINENO(n)
+
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up skel_text. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ *yy_cp = (yy_hold_char); \
+ YY_RESTORE_YY_MORE_OFFSET \
+ (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+ YY_DO_BEFORE_ACTION; /* set up skel_text again */ \
+ } \
+ while ( 0 )
+
+#define unput(c) yyunput( c, (yytext_ptr) )
+
+/* The following is because we cannot portably get our hands on size_t
+ * (without autoconf's help, which isn't available because we want
+ * flex-generated scanners to compile on their own).
+ */
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef unsigned int yy_size_t;
+#endif
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+ {
+/* %if-c-only */
+ FILE *yy_input_file;
+/* %endif */
+
+/* %if-c++-only */
+/* %endif */
+
+ char *yy_ch_buf; /* input buffer */
+ char *yy_buf_pos; /* current position in input buffer */
+
+ /* Size of input buffer in bytes, not including room for EOB
+ * characters.
+ */
+ yy_size_t yy_buf_size;
+
+ /* Number of characters read into yy_ch_buf, not including EOB
+ * characters.
+ */
+ int yy_n_chars;
+
+ /* Whether we "own" the buffer - i.e., we know we created it,
+ * and can realloc() it to grow it, and should free() it to
+ * delete it.
+ */
+ int yy_is_our_buffer;
+
+ /* Whether this is an "interactive" input source; if so, and
+ * if we're using stdio for input, then we want to use getc()
+ * instead of fread(), to make sure we stop fetching input after
+ * each newline.
+ */
+ int yy_is_interactive;
+
+ /* Whether we're considered to be at the beginning of a line.
+ * If so, '^' rules will be active on the next match, otherwise
+ * not.
+ */
+ int yy_at_bol;
+
+ int yy_bs_lineno; /**< The line count. */
+ int yy_bs_column; /**< The column count. */
+
+ /* Whether to try to fill the input buffer when we reach the
+ * end of it.
+ */
+ int yy_fill_buffer;
+
+ int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+ /* When an EOF's been seen but there's still some text to process
+ * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+ * shouldn't try reading from the input source any more. We might
+ * still have a bunch of tokens to match, though, because of
+ * possible backing-up.
+ *
+ * When we actually see the EOF, we change the status to "new"
+ * (via skel_restart()), so that the user can continue scanning by
+ * just pointing skel_in at a new input file.
+ */
+#define YY_BUFFER_EOF_PENDING 2
+
+ };
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* %if-c-only Standard (non-C++) definition */
+/* %not-for-header */
+
+/* %if-not-reentrant */
+
+/* Stack of input buffers. */
+static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
+static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
+static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
+/* %endif */
+/* %ok-for-header */
+
+/* %endif */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
+ ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
+ : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
+
+/* %if-c-only Standard (non-C++) definition */
+
+/* %if-not-reentrant */
+/* %not-for-header */
+
+/* yy_hold_char holds the character lost when skel_text is formed. */
+static char yy_hold_char;
+static int yy_n_chars; /* number of characters read into yy_ch_buf */
+int skel_leng;
+
+/* Points to current character in buffer. */
+static char *yy_c_buf_p = (char *) 0;
+static int yy_init = 1; /* whether we need to initialize */
+static int yy_start = 0; /* start state number */
+
+/* Flag which is used to allow skel_wrap()'s to do buffer switches
+ * instead of setting up a fresh skel_in. A bit of a hack ...
+ */
+static int yy_did_buffer_switch_on_eof;
+/* %ok-for-header */
+
+/* %endif */
+
+void skel_restart (FILE *input_file );
+void skel__switch_to_buffer (YY_BUFFER_STATE new_buffer );
+YY_BUFFER_STATE skel__create_buffer (FILE *file,int size );
+void skel__delete_buffer (YY_BUFFER_STATE b );
+void skel__flush_buffer (YY_BUFFER_STATE b );
+void skel_push_buffer_state (YY_BUFFER_STATE new_buffer );
+void skel_pop_buffer_state (void );
+
+static void skel_ensure_buffer_stack (void );
+static void skel__load_buffer_state (void );
+static void skel__init_buffer (YY_BUFFER_STATE b,FILE *file );
+
+#define YY_FLUSH_BUFFER skel__flush_buffer(YY_CURRENT_BUFFER )
+
+YY_BUFFER_STATE skel__scan_buffer (char *base,yy_size_t size );
+YY_BUFFER_STATE skel__scan_string (yyconst char *yy_str );
+YY_BUFFER_STATE skel__scan_bytes (yyconst char *bytes,int len );
+
+/* %endif */
+
+void *skel_alloc (yy_size_t );
+void *skel_realloc (void *,yy_size_t );
+void skel_free (void * );
+
+#define yy_new_buffer skel__create_buffer
+
+#define yy_set_interactive(is_interactive) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){ \
+ skel_ensure_buffer_stack (); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ skel__create_buffer(skel_in,YY_BUF_SIZE ); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+ }
+
+#define yy_set_bol(at_bol) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){\
+ skel_ensure_buffer_stack (); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ skel__create_buffer(skel_in,YY_BUF_SIZE ); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+ }
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* %% [1.0] skel_text/skel_in/skel_out/yy_state_type/skel_lineno etc. def's & init go here */
+/* Begin user sect3 */
+
+#define skel_wrap(n) 1
+#define YY_SKIP_YYWRAP
+
+#define FLEX_DEBUG
+
+typedef unsigned char YY_CHAR;
+
+FILE *skel_in = (FILE *) 0, *skel_out = (FILE *) 0;
+
+typedef int yy_state_type;
+
+extern int skel_lineno;
+
+int skel_lineno = 1;
+
+extern char *skel_text;
+#define yytext_ptr skel_text
+
+/* %if-c-only Standard (non-C++) definition */
+
+static yy_state_type yy_get_previous_state (void );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state );
+static int yy_get_next_buffer (void );
+static void yy_fatal_error (yyconst char msg[] );
+
+/* %endif */
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up skel_text.
+ */
+#define YY_DO_BEFORE_ACTION \
+ (yytext_ptr) = yy_bp; \
+/* %% [2.0] code to fiddle skel_text and skel_leng for yymore() goes here \ */\
+ skel_leng = (size_t) (yy_cp - yy_bp); \
+ (yy_hold_char) = *yy_cp; \
+ *yy_cp = '\0'; \
+/* %% [3.0] code to copy yytext_ptr to skel_text[] goes here, if %array \ */\
+ (yy_c_buf_p) = yy_cp;
+
+/* %% [4.0] data tables for the DFA and the user's section 1 definitions go here */
+#define YY_NUM_RULES 13
+#define YY_END_OF_BUFFER 14
+/* This struct is not used in this scanner,
+ but its presence is necessary. */
+struct yy_trans_info
+ {
+ flex_int32_t yy_verify;
+ flex_int32_t yy_nxt;
+ };
+static yyconst flex_int16_t yy_accept[69] =
+ { 0,
+ 0, 0, 14, 12, 11, 10, 12, 10, 2, 10,
+ 10, 3, 4, 10, 10, 10, 10, 10, 10, 10,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+ 6, 5, 10, 10, 10, 10, 10, 10, 1, 0,
+ 10, 10, 10, 10, 10, 10, 10, 10, 7, 10,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+ 10, 10, 10, 10, 10, 9, 8, 0
+ } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 3, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 4, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 5, 1, 6, 1, 1, 7,
+
+ 8, 9, 1, 10, 11, 1, 1, 12, 13, 14,
+ 15, 16, 1, 17, 18, 19, 20, 1, 1, 21,
+ 1, 1, 22, 1, 23, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1
+ } ;
+
+static yyconst flex_int32_t yy_meta[24] =
+ { 0,
+ 1, 2, 1, 3, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1
+ } ;
+
+static yyconst flex_int16_t yy_base[74] =
+ { 0,
+ 0, 1, 107, 0, 138, 2, 0, 4, 138, 24,
+ 39, 138, 138, 1, 63, 45, 0, 2, 3, 9,
+ 5, 18, 22, 28, 11, 21, 33, 38, 34, 32,
+ 138, 138, 49, 46, 59, 54, 30, 81, 138, 8,
+ 58, 56, 47, 65, 61, 69, 68, 66, 138, 78,
+ 79, 77, 80, 87, 88, 91, 95, 89, 90, 97,
+ 100, 104, 106, 112, 114, 138, 138, 138, 125, 0,
+ 128, 131, 134
+ } ;
+
+static yyconst flex_int16_t yy_def[74] =
+ { 0,
+ 69, 69, 68, 70, 68, 71, 70, 71, 68, 71,
+ 10, 68, 68, 10, 10, 10, 10, 10, 10, 10,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+ 68, 68, 10, 10, 72, 10, 10, 72, 68, 73,
+ 10, 10, 10, 10, 10, 10, 10, 10, 68, 10,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+ 10, 10, 10, 10, 10, 68, 68, 0, 68, 68,
+ 68, 68, 68
+ } ;
+
+static yyconst flex_int16_t yy_nxt[162] =
+ { 0,
+ 7, 5, 5, 6, 6, 9, 22, 68, 10, 39,
+ 8, 8, 8, 8, 23, 8, 11, 18, 21, 8,
+ 25, 8, 24, 12, 13, 68, 68, 68, 8, 27,
+ 29, 8, 8, 26, 14, 28, 31, 30, 8, 34,
+ 43, 32, 8, 8, 8, 68, 68, 15, 8, 8,
+ 16, 35, 33, 36, 37, 20, 8, 8, 17, 8,
+ 39, 45, 40, 41, 8, 44, 8, 46, 8, 42,
+ 47, 8, 49, 19, 50, 8, 8, 48, 8, 8,
+ 40, 40, 39, 51, 40, 52, 53, 8, 8, 8,
+ 8, 56, 57, 54, 60, 61, 55, 8, 8, 8,
+
+ 8, 8, 40, 40, 58, 8, 68, 8, 59, 62,
+ 8, 64, 63, 65, 8, 66, 8, 67, 68, 68,
+ 68, 68, 8, 68, 8, 4, 4, 4, 8, 68,
+ 8, 38, 38, 38, 40, 40, 40, 3, 68, 68,
+ 68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
+ 68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
+ 68
+ } ;
+
+static yyconst flex_int16_t yy_chk[162] =
+ { 0,
+ 70, 1, 2, 1, 2, 6, 18, 8, 6, 40,
+ 17, 14, 18, 19, 19, 21, 6, 14, 17, 20,
+ 21, 25, 20, 6, 6, 8, 8, 10, 22, 23,
+ 25, 26, 23, 22, 10, 24, 27, 26, 24, 30,
+ 37, 28, 30, 27, 29, 10, 10, 11, 28, 11,
+ 11, 33, 29, 33, 34, 16, 34, 43, 11, 33,
+ 35, 42, 35, 36, 36, 41, 42, 43, 41, 36,
+ 44, 45, 46, 15, 47, 44, 48, 45, 47, 46,
+ 35, 35, 38, 48, 38, 50, 51, 52, 50, 51,
+ 53, 54, 55, 52, 58, 59, 53, 54, 55, 58,
+
+ 59, 56, 38, 38, 56, 57, 3, 60, 57, 60,
+ 61, 62, 61, 63, 62, 64, 63, 65, 0, 0,
+ 0, 0, 64, 0, 65, 69, 69, 69, 71, 0,
+ 71, 72, 72, 72, 73, 73, 73, 68, 68, 68,
+ 68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
+ 68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
+ 68
+ } ;
+
+static yy_state_type yy_last_accepting_state;
+static char *yy_last_accepting_cpos;
+
+extern int skel__flex_debug;
+int skel__flex_debug = 1;
+
+static yyconst flex_int16_t yy_rule_linenum[13] =
+ { 0,
+ 70, 97, 98, 99, 101, 102, 103, 104, 105, 108,
+ 109, 110
+ } ;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+char *skel_text;
+#line 1 "scan-skel.l"
+/* Scan Bison Skeletons. -*- C -*-
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+#line 27 "scan-skel.l"
+/* Work around a bug in flex 2.5.31. See Debian bug 333231
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>. */
+#undef skel_wrap
+#define skel_wrap() 1
+
+#include "system.h"
+
+#include <error.h>
+#include <quotearg.h>
+
+#include "complain.h"
+#include "getargs.h"
+#include "files.h"
+#include "scan-skel.h"
+
+/* Pacify "gcc -Wmissing-prototypes" when flex 2.5.31 is used. */
+int skel_lex (void);
+int skel_get_lineno (void);
+FILE *skel_get_in (void);
+FILE *skel_get_out (void);
+int skel_get_leng (void);
+char *skel_get_text (void);
+void skel_set_lineno (int);
+void skel_set_in (FILE *);
+void skel_set_out (FILE *);
+int skel_get_debug (void);
+void skel_set_debug (int);
+int skel_lex_destroy (void);
+
+#define QPUTS(String) \
+ fputs (quotearg_style (c_quoting_style, String), skel_out)
+
+#define BASE_QPUTS(File) \
+ QPUTS (base_name (File))
+
+#line 638 "scan-skel.c"
+
+#define INITIAL 0
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+/* %if-c-only */
+#include <unistd.h>
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+/* %if-c-only Reentrant structure and macros (non-C++). */
+/* %if-reentrant */
+/* %if-reentrant */
+/* %endif */
+/* %if-bison-bridge */
+/* %endif */
+/* %endif End reentrant structures and macros. */
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int skel_wrap (void );
+#else
+extern int skel_wrap (void );
+#endif
+#endif
+
+/* %not-for-header */
+
+/* %ok-for-header */
+
+/* %endif */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int );
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * );
+#endif
+
+#ifndef YY_NO_INPUT
+/* %if-c-only Standard (non-C++) definition */
+/* %not-for-header */
+
+#ifdef __cplusplus
+static int yyinput (void );
+#else
+static int input (void );
+#endif
+/* %ok-for-header */
+
+/* %endif */
+#endif
+
+/* %if-c-only */
+
+/* %endif */
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#define YY_READ_BUF_SIZE 8192
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* %if-c-only Standard (non-C++) definition */
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO (void) fwrite( skel_text, skel_leng, 1, skel_out )
+/* %endif */
+/* %if-c++-only C++ definition */
+/* %endif */
+#endif
+
+/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+/* %% [5.0] fread()/read() definition of YY_INPUT goes here unless we're doing C++ \ */\
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
+ { \
+ int c = '*'; \
+ size_t n; \
+ for ( n = 0; n < max_size && \
+ (c = getc( skel_in )) != EOF && c != '\n'; ++n ) \
+ buf[n] = (char) c; \
+ if ( c == '\n' ) \
+ buf[n++] = (char) c; \
+ if ( c == EOF && ferror( skel_in ) ) \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ result = n; \
+ } \
+ else \
+ { \
+ errno=0; \
+ while ( (result = fread(buf, 1, max_size, skel_in))==0 && ferror(skel_in)) \
+ { \
+ if( errno != EINTR) \
+ { \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ break; \
+ } \
+ errno=0; \
+ clearerr(skel_in); \
+ } \
+ }\
+\
+/* %if-c++-only C++ definition \ */\
+/* %endif */
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+/* %if-c-only */
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+#endif
+
+/* %if-tables-serialization structures and prototypes */
+/* %not-for-header */
+
+/* %ok-for-header */
+
+/* %not-for-header */
+
+/* %tables-yydmap generated elements */
+/* %endif */
+/* end tables serialization structures and prototypes */
+
+/* %ok-for-header */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+/* %if-c-only Standard (non-C++) definition */
+
+extern int skel_lex (void);
+
+#define YY_DECL int skel_lex (void)
+/* %endif */
+/* %if-c++-only C++ definition */
+/* %endif */
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after skel_text and skel_leng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+/* %% [6.0] YY_RULE_SETUP definition goes here */
+#define YY_RULE_SETUP \
+ YY_USER_ACTION
+
+/* %not-for-header */
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp, *yy_bp;
+ register int yy_act;
+
+/* %% [7.0] user's declarations go here */
+#line 63 "scan-skel.l"
+
+
+
+ int lineno IF_LINT (= 0);
+ char *outname = NULL;
+
+
+#line 851 "scan-skel.c"
+
+ if ( (yy_init) )
+ {
+ (yy_init) = 0;
+
+#ifdef YY_USER_INIT
+ YY_USER_INIT;
+#endif
+
+ if ( ! (yy_start) )
+ (yy_start) = 1; /* first start state */
+
+ if ( ! skel_in )
+/* %if-c-only */
+ skel_in = stdin;
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+ if ( ! skel_out )
+/* %if-c-only */
+ skel_out = stdout;
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+ if ( ! YY_CURRENT_BUFFER ) {
+ skel_ensure_buffer_stack ();
+ YY_CURRENT_BUFFER_LVALUE =
+ skel__create_buffer(skel_in,YY_BUF_SIZE );
+ }
+
+ skel__load_buffer_state( );
+ }
+
+ while ( 1 ) /* loops until end-of-file is reached */
+ {
+/* %% [8.0] yymore()-related code goes here */
+ yy_cp = (yy_c_buf_p);
+
+ /* Support of skel_text. */
+ *yy_cp = (yy_hold_char);
+
+ /* yy_bp points to the position in yy_ch_buf of the start of
+ * the current run.
+ */
+ yy_bp = yy_cp;
+
+/* %% [9.0] code to set up and find next match goes here */
+ yy_current_state = (yy_start);
+yy_match:
+ do
+ {
+ register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 69 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ ++yy_cp;
+ }
+ while ( yy_current_state != 68 );
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+
+yy_find_action:
+/* %% [10.0] code to find the action number goes here */
+ yy_act = yy_accept[yy_current_state];
+
+ YY_DO_BEFORE_ACTION;
+
+/* %% [11.0] code for skel_lineno update goes here */
+
+do_action: /* This label is used only to access EOF actions. */
+
+/* %% [12.0] debug code goes here */
+ if ( skel__flex_debug )
+ {
+ if ( yy_act == 0 )
+ fprintf( stderr, "--scanner backing up\n" );
+ else if ( yy_act < 13 )
+ fprintf( stderr, "--accepting rule at line %ld (\"%s\")\n",
+ (long)yy_rule_linenum[yy_act], skel_text );
+ else if ( yy_act == 13 )
+ fprintf( stderr, "--accepting default rule (\"%s\")\n",
+ skel_text );
+ else if ( yy_act == 14 )
+ fprintf( stderr, "--(end of buffer or a NUL)\n" );
+ else
+ fprintf( stderr, "--EOF (start condition %d)\n", YY_START );
+ }
+
+ switch ( yy_act )
+ { /* beginning of action switch */
+/* %% [13.0] actions go here */
+ case 0: /* must back up */
+ /* undo the effects of YY_DO_BEFORE_ACTION */
+ *yy_cp = (yy_hold_char);
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+ goto yy_find_action;
+
+case 1:
+/* rule 1 can match eol */
+YY_RULE_SETUP
+#line 70 "scan-skel.l"
+{
+ char const *file_name = skel_text + sizeof "@output " - 1;
+ skel_text[skel_leng - 1] = '\0';
+
+ /* Decode special file names. They include the directory part,
+ contrary to their "free" occurrences, used for issuing #includes,
+ which must not include the directory part. */
+
+ if (*file_name == '@')
+ {
+ if (strcmp (file_name, "@output_header_name@") == 0)
+ file_name = spec_defines_file;
+ else if (strcmp (file_name, "@output_parser_name@") == 0)
+ file_name = parser_file_name;
+ else
+ fatal ("invalid token in skeleton: %s", skel_text);
+ }
+ if (outname)
+ {
+ free (outname);
+ xfclose (skel_out);
+ }
+ outname = xstrdup (file_name);
+ skel_out = xfopen (outname, "w");
+ lineno = 1;
+}
+ YY_BREAK
+case 2:
+YY_RULE_SETUP
+#line 97 "scan-skel.l"
+fputc ('@', skel_out);
+ YY_BREAK
+case 3:
+YY_RULE_SETUP
+#line 98 "scan-skel.l"
+fputc ('[', skel_out);
+ YY_BREAK
+case 4:
+YY_RULE_SETUP
+#line 99 "scan-skel.l"
+fputc (']', skel_out);
+ YY_BREAK
+case 5:
+YY_RULE_SETUP
+#line 101 "scan-skel.l"
+fprintf (skel_out, "%d", lineno + 1);
+ YY_BREAK
+case 6:
+YY_RULE_SETUP
+#line 102 "scan-skel.l"
+QPUTS (outname);
+ YY_BREAK
+case 7:
+YY_RULE_SETUP
+#line 103 "scan-skel.l"
+QPUTS (dir_prefix);
+ YY_BREAK
+case 8:
+YY_RULE_SETUP
+#line 104 "scan-skel.l"
+BASE_QPUTS (parser_file_name);
+ YY_BREAK
+case 9:
+YY_RULE_SETUP
+#line 105 "scan-skel.l"
+BASE_QPUTS (spec_defines_file);
+ YY_BREAK
+/* This pattern must not match more than the previous @ patterns. */
+case 10:
+YY_RULE_SETUP
+#line 108 "scan-skel.l"
+fatal ("invalid @ in skeleton: %s", skel_text);
+ YY_BREAK
+case 11:
+/* rule 11 can match eol */
+YY_RULE_SETUP
+#line 109 "scan-skel.l"
+lineno++; ECHO;
+ YY_BREAK
+case 12:
+YY_RULE_SETUP
+#line 110 "scan-skel.l"
+ECHO;
+ YY_BREAK
+case YY_STATE_EOF(INITIAL):
+#line 112 "scan-skel.l"
+{
+ if (outname)
+ {
+ free (outname);
+ xfclose (skel_out);
+ }
+ return EOF;
+}
+ YY_BREAK
+case 13:
+YY_RULE_SETUP
+#line 120 "scan-skel.l"
+YY_FATAL_ERROR( "flex scanner jammed" );
+ YY_BREAK
+#line 1065 "scan-skel.c"
+
+ case YY_END_OF_BUFFER:
+ {
+ /* Amount of text matched not including the EOB char. */
+ int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
+
+ /* Undo the effects of YY_DO_BEFORE_ACTION. */
+ *yy_cp = (yy_hold_char);
+ YY_RESTORE_YY_MORE_OFFSET
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+ {
+ /* We're scanning a new file or input source. It's
+ * possible that this happened because the user
+ * just pointed skel_in at a new source and called
+ * skel_lex(). If so, then we have to assure
+ * consistency between YY_CURRENT_BUFFER and our
+ * globals. Here is the right place to do so, because
+ * this is the first action (other than possibly a
+ * back-up) that will match for the new input source.
+ */
+ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ YY_CURRENT_BUFFER_LVALUE->yy_input_file = skel_in;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+ }
+
+ /* Note that here we test for yy_c_buf_p "<=" to the position
+ * of the first EOB in the buffer, since yy_c_buf_p will
+ * already have been incremented past the NUL character
+ * (since all states make transitions on EOB to the
+ * end-of-buffer state). Contrast this with the test
+ * in input().
+ */
+ if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+ { /* This was really a NUL. */
+ yy_state_type yy_next_state;
+
+ (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( );
+
+ /* Okay, we're now positioned to make the NUL
+ * transition. We couldn't have
+ * yy_get_previous_state() go ahead and do it
+ * for us because it doesn't know how to deal
+ * with the possibility of jamming (and we don't
+ * want to build jamming into it because then it
+ * will run more slowly).
+ */
+
+ yy_next_state = yy_try_NUL_trans( yy_current_state );
+
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+
+ if ( yy_next_state )
+ {
+ /* Consume the NUL. */
+ yy_cp = ++(yy_c_buf_p);
+ yy_current_state = yy_next_state;
+ goto yy_match;
+ }
+
+ else
+ {
+/* %% [14.0] code to do back-up for compressed tables and set up yy_cp goes here */
+ yy_cp = (yy_last_accepting_cpos);
+ yy_current_state = (yy_last_accepting_state);
+ goto yy_find_action;
+ }
+ }
+
+ else switch ( yy_get_next_buffer( ) )
+ {
+ case EOB_ACT_END_OF_FILE:
+ {
+ (yy_did_buffer_switch_on_eof) = 0;
+
+ if ( skel_wrap( ) )
+ {
+ /* Note: because we've taken care in
+ * yy_get_next_buffer() to have set up
+ * skel_text, we can now set up
+ * yy_c_buf_p so that if some total
+ * hoser (like flex itself) wants to
+ * call the scanner after we return the
+ * YY_NULL, it'll still work - another
+ * YY_NULL will get returned.
+ */
+ (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
+
+ yy_act = YY_STATE_EOF(YY_START);
+ goto do_action;
+ }
+
+ else
+ {
+ if ( ! (yy_did_buffer_switch_on_eof) )
+ YY_NEW_FILE;
+ }
+ break;
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ (yy_c_buf_p) =
+ (yytext_ptr) + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( );
+
+ yy_cp = (yy_c_buf_p);
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+ goto yy_match;
+
+ case EOB_ACT_LAST_MATCH:
+ (yy_c_buf_p) =
+ &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
+
+ yy_current_state = yy_get_previous_state( );
+
+ yy_cp = (yy_c_buf_p);
+ yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+ goto yy_find_action;
+ }
+ break;
+ }
+
+ default:
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--no action found" );
+ } /* end of action switch */
+ } /* end of scanning one token */
+} /* end of skel_lex */
+/* %ok-for-header */
+
+/* %if-c++-only */
+/* %not-for-header */
+
+/* %ok-for-header */
+
+/* %endif */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ * EOB_ACT_LAST_MATCH -
+ * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ * EOB_ACT_END_OF_FILE - end of file
+ */
+/* %if-c-only */
+static int yy_get_next_buffer (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+ register char *source = (yytext_ptr);
+ register int number_to_move, i;
+ int ret_val;
+
+ if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--end of buffer missed" );
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+ { /* Don't try to fill the buffer, so this is an EOF. */
+ if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
+ {
+ /* We matched a single character, the EOB, so
+ * treat this as a final EOF.
+ */
+ return EOB_ACT_END_OF_FILE;
+ }
+
+ else
+ {
+ /* We matched some text prior to the EOB, first
+ * process it.
+ */
+ return EOB_ACT_LAST_MATCH;
+ }
+ }
+
+ /* Try to read more data. */
+
+ /* First move last chars to start of buffer. */
+ number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
+
+ for ( i = 0; i < number_to_move; ++i )
+ *(dest++) = *(source++);
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+ /* don't do the read, it's not guaranteed to return an EOF,
+ * just force an EOF
+ */
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
+
+ else
+ {
+ size_t num_to_read =
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+ while ( num_to_read <= 0 )
+ { /* Not enough room in the buffer - grow it. */
+
+ /* just a shorter name for the current buffer */
+ YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
+
+ int yy_c_buf_p_offset =
+ (int) ((yy_c_buf_p) - b->yy_ch_buf);
+
+ if ( b->yy_is_our_buffer )
+ {
+ int new_size = b->yy_buf_size * 2;
+
+ if ( new_size <= 0 )
+ b->yy_buf_size += b->yy_buf_size / 8;
+ else
+ b->yy_buf_size *= 2;
+
+ b->yy_ch_buf = (char *)
+ /* Include room in for 2 EOB chars. */
+ skel_realloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 );
+ }
+ else
+ /* Can't grow it, we don't own it. */
+ b->yy_ch_buf = 0;
+
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR(
+ "fatal error - scanner input buffer overflow" );
+
+ (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+ num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+ number_to_move - 1;
+
+ }
+
+ if ( num_to_read > YY_READ_BUF_SIZE )
+ num_to_read = YY_READ_BUF_SIZE;
+
+ /* Read in more data. */
+ YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+ (yy_n_chars), num_to_read );
+
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ if ( (yy_n_chars) == 0 )
+ {
+ if ( number_to_move == YY_MORE_ADJ )
+ {
+ ret_val = EOB_ACT_END_OF_FILE;
+ skel_restart(skel_in );
+ }
+
+ else
+ {
+ ret_val = EOB_ACT_LAST_MATCH;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+ YY_BUFFER_EOF_PENDING;
+ }
+ }
+
+ else
+ ret_val = EOB_ACT_CONTINUE_SCAN;
+
+ (yy_n_chars) += number_to_move;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
+
+ (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+ return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+/* %if-c-only */
+/* %not-for-header */
+
+ static yy_state_type yy_get_previous_state (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp;
+
+/* %% [15.0] code to get the start state into yy_current_state goes here */
+ yy_current_state = (yy_start);
+
+ for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
+ {
+/* %% [16.0] code to find the next state goes here */
+ register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 69 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ }
+
+ return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ * next_state = yy_try_NUL_trans( current_state );
+ */
+/* %if-c-only */
+ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ register int yy_is_jam;
+ /* %% [17.0] code to find the next state, and perhaps do backing up, goes here */
+ register char *yy_cp = (yy_c_buf_p);
+
+ register YY_CHAR yy_c = 1;
+ if ( yy_accept[yy_current_state] )
+ {
+ (yy_last_accepting_state) = yy_current_state;
+ (yy_last_accepting_cpos) = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 69 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ yy_is_jam = (yy_current_state == 68);
+
+ return yy_is_jam ? 0 : yy_current_state;
+}
+
+/* %if-c-only */
+
+/* %endif */
+
+/* %if-c-only */
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+ static int yyinput (void)
+#else
+ static int input (void)
+#endif
+
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ int c;
+
+ *(yy_c_buf_p) = (yy_hold_char);
+
+ if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
+ {
+ /* yy_c_buf_p now points to the character we want to return.
+ * If this occurs *before* the EOB characters, then it's a
+ * valid NUL; if not, then we've hit the end of the buffer.
+ */
+ if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+ /* This was really a NUL. */
+ *(yy_c_buf_p) = '\0';
+
+ else
+ { /* need more input */
+ int offset = (yy_c_buf_p) - (yytext_ptr);
+ ++(yy_c_buf_p);
+
+ switch ( yy_get_next_buffer( ) )
+ {
+ case EOB_ACT_LAST_MATCH:
+ /* This happens because yy_g_n_b()
+ * sees that we've accumulated a
+ * token and flags that we need to
+ * try matching the token before
+ * proceeding. But for input(),
+ * there's no matching to consider.
+ * So convert the EOB_ACT_LAST_MATCH
+ * to EOB_ACT_END_OF_FILE.
+ */
+
+ /* Reset buffer status. */
+ skel_restart(skel_in );
+
+ /*FALLTHROUGH*/
+
+ case EOB_ACT_END_OF_FILE:
+ {
+ if ( skel_wrap( ) )
+ return EOF;
+
+ if ( ! (yy_did_buffer_switch_on_eof) )
+ YY_NEW_FILE;
+#ifdef __cplusplus
+ return yyinput();
+#else
+ return input();
+#endif
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ (yy_c_buf_p) = (yytext_ptr) + offset;
+ break;
+ }
+ }
+ }
+
+ c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */
+ *(yy_c_buf_p) = '\0'; /* preserve skel_text */
+ (yy_hold_char) = *++(yy_c_buf_p);
+
+/* %% [19.0] update BOL and skel_lineno */
+
+ return c;
+}
+/* %if-c-only */
+#endif /* ifndef YY_NO_INPUT */
+/* %endif */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ *
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+/* %if-c-only */
+ void skel_restart (FILE * input_file )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+
+ if ( ! YY_CURRENT_BUFFER ){
+ skel_ensure_buffer_stack ();
+ YY_CURRENT_BUFFER_LVALUE =
+ skel__create_buffer(skel_in,YY_BUF_SIZE );
+ }
+
+ skel__init_buffer(YY_CURRENT_BUFFER,input_file );
+ skel__load_buffer_state( );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ *
+ */
+/* %if-c-only */
+ void skel__switch_to_buffer (YY_BUFFER_STATE new_buffer )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+
+ /* TODO. We should be able to replace this entire function body
+ * with
+ * skel_pop_buffer_state();
+ * skel_push_buffer_state(new_buffer);
+ */
+ skel_ensure_buffer_stack ();
+ if ( YY_CURRENT_BUFFER == new_buffer )
+ return;
+
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *(yy_c_buf_p) = (yy_hold_char);
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+ skel__load_buffer_state( );
+
+ /* We don't actually know whether we did this switch during
+ * EOF (skel_wrap()) processing, but the only time this flag
+ * is looked at is after skel_wrap() is called, so it's safe
+ * to go ahead and always set it.
+ */
+ (yy_did_buffer_switch_on_eof) = 1;
+}
+
+/* %if-c-only */
+static void skel__load_buffer_state (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+ skel_in = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+ (yy_hold_char) = *(yy_c_buf_p);
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ *
+ * @return the allocated buffer state.
+ */
+/* %if-c-only */
+ YY_BUFFER_STATE skel__create_buffer (FILE * file, int size )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ YY_BUFFER_STATE b;
+
+ b = (YY_BUFFER_STATE) skel_alloc(sizeof( struct yy_buffer_state ) );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in skel__create_buffer()" );
+
+ b->yy_buf_size = size;
+
+ /* yy_ch_buf has to be 2 characters longer than the size given because
+ * we need to put in 2 end-of-buffer characters.
+ */
+ b->yy_ch_buf = (char *) skel_alloc(b->yy_buf_size + 2 );
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in skel__create_buffer()" );
+
+ b->yy_is_our_buffer = 1;
+
+ skel__init_buffer(b,file );
+
+ return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with skel__create_buffer()
+ *
+ */
+/* %if-c-only */
+ void skel__delete_buffer (YY_BUFFER_STATE b )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+
+ if ( ! b )
+ return;
+
+ if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+ YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+ if ( b->yy_is_our_buffer )
+ skel_free((void *) b->yy_ch_buf );
+
+ skel_free((void *) b );
+}
+
+/* %if-c-only */
+
+/* %endif */
+
+/* %if-c++-only */
+/* %endif */
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a skel_restart() or at EOF.
+ */
+/* %if-c-only */
+ static void skel__init_buffer (YY_BUFFER_STATE b, FILE * file )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+{
+ int oerrno = errno;
+
+ skel__flush_buffer(b );
+
+ b->yy_input_file = file;
+ b->yy_fill_buffer = 1;
+
+ /* If b is the current buffer, then skel__init_buffer was _probably_
+ * called from skel_restart() or through yy_get_next_buffer.
+ * In that case, we don't want to reset the lineno or column.
+ */
+ if (b != YY_CURRENT_BUFFER){
+ b->yy_bs_lineno = 1;
+ b->yy_bs_column = 0;
+ }
+
+/* %if-c-only */
+
+ b->yy_is_interactive = 0;
+
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+ errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ *
+ */
+/* %if-c-only */
+ void skel__flush_buffer (YY_BUFFER_STATE b )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ if ( ! b )
+ return;
+
+ b->yy_n_chars = 0;
+
+ /* We always need two end-of-buffer characters. The first causes
+ * a transition to the end-of-buffer state. The second causes
+ * a jam in that state.
+ */
+ b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+ b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+ b->yy_buf_pos = &b->yy_ch_buf[0];
+
+ b->yy_at_bol = 1;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ if ( b == YY_CURRENT_BUFFER )
+ skel__load_buffer_state( );
+}
+
+/* %if-c-or-c++ */
+/** Pushes the new state onto the stack. The new state becomes
+ * the current state. This function will allocate the stack
+ * if necessary.
+ * @param new_buffer The new state.
+ *
+ */
+/* %if-c-only */
+void skel_push_buffer_state (YY_BUFFER_STATE new_buffer )
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ if (new_buffer == NULL)
+ return;
+
+ skel_ensure_buffer_stack();
+
+ /* This block is copied from skel__switch_to_buffer. */
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *(yy_c_buf_p) = (yy_hold_char);
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+ }
+
+ /* Only push if top exists. Otherwise, replace top. */
+ if (YY_CURRENT_BUFFER)
+ (yy_buffer_stack_top)++;
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+ /* copied from skel__switch_to_buffer. */
+ skel__load_buffer_state( );
+ (yy_did_buffer_switch_on_eof) = 1;
+}
+/* %endif */
+
+/* %if-c-or-c++ */
+/** Removes and deletes the top of the stack, if present.
+ * The next element becomes the new top.
+ *
+ */
+/* %if-c-only */
+void skel_pop_buffer_state (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ if (!YY_CURRENT_BUFFER)
+ return;
+
+ skel__delete_buffer(YY_CURRENT_BUFFER );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ if ((yy_buffer_stack_top) > 0)
+ --(yy_buffer_stack_top);
+
+ if (YY_CURRENT_BUFFER) {
+ skel__load_buffer_state( );
+ (yy_did_buffer_switch_on_eof) = 1;
+ }
+}
+/* %endif */
+
+/* %if-c-or-c++ */
+/* Allocates the stack if it does not exist.
+ * Guarantees space for at least one push.
+ */
+/* %if-c-only */
+static void skel_ensure_buffer_stack (void)
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+{
+ int num_to_alloc;
+
+ if (!(yy_buffer_stack)) {
+
+ /* First allocation is just for 2 elements, since we don't know if this
+ * scanner will even need a stack. We use 2 instead of 1 to avoid an
+ * immediate realloc on the next call.
+ */
+ num_to_alloc = 1;
+ (yy_buffer_stack) = (struct yy_buffer_state**)skel_alloc
+ (num_to_alloc * sizeof(struct yy_buffer_state*)
+ );
+
+ memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+
+ (yy_buffer_stack_max) = num_to_alloc;
+ (yy_buffer_stack_top) = 0;
+ return;
+ }
+
+ if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
+
+ /* Increase the buffer to prepare for a possible push. */
+ int grow_size = 8 /* arbitrary grow size */;
+
+ num_to_alloc = (yy_buffer_stack_max) + grow_size;
+ (yy_buffer_stack) = (struct yy_buffer_state**)skel_realloc
+ ((yy_buffer_stack),
+ num_to_alloc * sizeof(struct yy_buffer_state*)
+ );
+
+ /* zero only the new slots.*/
+ memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
+ (yy_buffer_stack_max) = num_to_alloc;
+ }
+}
+/* %endif */
+
+/* %if-c-only */
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ *
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE skel__scan_buffer (char * base, yy_size_t size )
+{
+ YY_BUFFER_STATE b;
+
+ if ( size < 2 ||
+ base[size-2] != YY_END_OF_BUFFER_CHAR ||
+ base[size-1] != YY_END_OF_BUFFER_CHAR )
+ /* They forgot to leave room for the EOB's. */
+ return 0;
+
+ b = (YY_BUFFER_STATE) skel_alloc(sizeof( struct yy_buffer_state ) );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in skel__scan_buffer()" );
+
+ b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
+ b->yy_buf_pos = b->yy_ch_buf = base;
+ b->yy_is_our_buffer = 0;
+ b->yy_input_file = 0;
+ b->yy_n_chars = b->yy_buf_size;
+ b->yy_is_interactive = 0;
+ b->yy_at_bol = 1;
+ b->yy_fill_buffer = 0;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ skel__switch_to_buffer(b );
+
+ return b;
+}
+/* %endif */
+
+/* %if-c-only */
+/** Setup the input buffer state to scan a string. The next call to skel_lex() will
+ * scan from a @e copy of @a str.
+ * @param str a NUL-terminated string to scan
+ *
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ * skel__scan_bytes() instead.
+ */
+YY_BUFFER_STATE skel__scan_string (yyconst char * yy_str )
+{
+
+ return skel__scan_bytes(yy_str,strlen(yy_str) );
+}
+/* %endif */
+
+/* %if-c-only */
+/** Setup the input buffer state to scan the given bytes. The next call to skel_lex() will
+ * scan from a @e copy of @a bytes.
+ * @param bytes the byte buffer to scan
+ * @param len the number of bytes in the buffer pointed to by @a bytes.
+ *
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE skel__scan_bytes (yyconst char * bytes, int len )
+{
+ YY_BUFFER_STATE b;
+ char *buf;
+ yy_size_t n;
+ int i;
+
+ /* Get memory for full buffer, including space for trailing EOB's. */
+ n = len + 2;
+ buf = (char *) skel_alloc(n );
+ if ( ! buf )
+ YY_FATAL_ERROR( "out of dynamic memory in skel__scan_bytes()" );
+
+ for ( i = 0; i < len; ++i )
+ buf[i] = bytes[i];
+
+ buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;
+
+ b = skel__scan_buffer(buf,n );
+ if ( ! b )
+ YY_FATAL_ERROR( "bad buffer in skel__scan_bytes()" );
+
+ /* It's okay to grow etc. this buffer, and we should throw it
+ * away when we're done.
+ */
+ b->yy_is_our_buffer = 1;
+
+ return b;
+}
+/* %endif */
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+/* %if-c-only */
+static void yy_fatal_error (yyconst char* msg )
+{
+ (void) fprintf( stderr, "%s\n", msg );
+ exit( YY_EXIT_FAILURE );
+}
+/* %endif */
+/* %if-c++-only */
+/* %endif */
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up skel_text. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ skel_text[skel_leng] = (yy_hold_char); \
+ (yy_c_buf_p) = skel_text + yyless_macro_arg; \
+ (yy_hold_char) = *(yy_c_buf_p); \
+ *(yy_c_buf_p) = '\0'; \
+ skel_leng = yyless_macro_arg; \
+ } \
+ while ( 0 )
+
+/* Accessor methods (get/set functions) to struct members. */
+
+/* %if-c-only */
+/* %if-reentrant */
+/* %endif */
+
+/** Get the current line number.
+ *
+ */
+int skel_get_lineno (void)
+{
+
+ return skel_lineno;
+}
+
+/** Get the input stream.
+ *
+ */
+FILE *skel_get_in (void)
+{
+ return skel_in;
+}
+
+/** Get the output stream.
+ *
+ */
+FILE *skel_get_out (void)
+{
+ return skel_out;
+}
+
+/** Get the length of the current token.
+ *
+ */
+int skel_get_leng (void)
+{
+ return skel_leng;
+}
+
+/** Get the current token.
+ *
+ */
+
+char *skel_get_text (void)
+{
+ return skel_text;
+}
+
+/* %if-reentrant */
+/* %endif */
+
+/** Set the current line number.
+ * @param line_number
+ *
+ */
+void skel_set_lineno (int line_number )
+{
+
+ skel_lineno = line_number;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ *
+ * @see skel__switch_to_buffer
+ */
+void skel_set_in (FILE * in_str )
+{
+ skel_in = in_str ;
+}
+
+void skel_set_out (FILE * out_str )
+{
+ skel_out = out_str ;
+}
+
+int skel_get_debug (void)
+{
+ return skel__flex_debug;
+}
+
+void skel_set_debug (int bdebug )
+{
+ skel__flex_debug = bdebug ;
+}
+
+/* %endif */
+
+/* %if-reentrant */
+/* %if-bison-bridge */
+/* %endif */
+/* %endif */
+
+/* %if-c-only SNIP! this currently causes conflicts with the c++ scanner */
+/* skel_lex_destroy is for both reentrant and non-reentrant scanners. */
+int skel_lex_destroy (void)
+{
+
+ /* Pop the buffer stack, destroying each element. */
+ while(YY_CURRENT_BUFFER){
+ skel__delete_buffer(YY_CURRENT_BUFFER );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ skel_pop_buffer_state();
+ }
+
+ /* Destroy the stack itself. */
+ skel_free((yy_buffer_stack) );
+ (yy_buffer_stack) = NULL;
+
+/* %if-reentrant */
+/* %endif */
+ return 0;
+}
+/* %endif */
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
+{
+ register int i;
+ for ( i = 0; i < n; ++i )
+ s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s )
+{
+ register int n;
+ for ( n = 0; s[n]; ++n )
+ ;
+
+ return n;
+}
+#endif
+
+void *skel_alloc (yy_size_t size )
+{
+ return (void *) malloc( size );
+}
+
+void *skel_realloc (void * ptr, yy_size_t size )
+{
+ /* The cast to (char *) in the following accommodates both
+ * implementations that use char* generic pointers, and those
+ * that use void* generic pointers. It works with the latter
+ * because both ANSI C and C++ allow castless assignment from
+ * any pointer type to void*, and deal with argument conversions
+ * as though doing an assignment.
+ */
+ return (void *) realloc( (char *) ptr, size );
+}
+
+void skel_free (void * ptr )
+{
+ free( (char *) ptr ); /* see skel_realloc() for (char *) cast */
+}
+
+/* %if-tables-serialization definitions */
+/* %define-yytables The name for this specific scanner's tables. */
+#define YYTABLES_NAME "yytables"
+/* %endif */
+
+/* %ok-for-header */
+
+#undef YY_NEW_FILE
+#undef YY_FLUSH_BUFFER
+#undef yy_set_bol
+#undef yy_new_buffer
+#undef yy_set_interactive
+#undef yytext_ptr
+#undef YY_DO_BEFORE_ACTION
+
+#ifdef YY_DECL_IS_OURS
+#undef YY_DECL_IS_OURS
+#undef YY_DECL
+#endif
+#line 120 "scan-skel.l"
+
+
+
+/*------------------------.
+| Scan a Bison skeleton. |
+`------------------------*/
+
+void
+scan_skel (FILE *in)
+{
+ skel_in = in;
+ skel__flex_debug = trace_flag & trace_skeleton;
+ skel_lex ();
+ /* Reclaim Flex's buffers. */
+ skel__delete_buffer (YY_CURRENT_BUFFER);
+}
+
diff --git a/src/scan-skel.h b/src/scan-skel.h
new file mode 100644
index 0000000..a7e14c3
--- /dev/null
+++ b/src/scan-skel.h
@@ -0,0 +1,28 @@
+/* Scan Bison Skeletons.
+
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+void scan_skel (FILE *);
+
+/* Pacify "make syntax-check". */
+extern FILE *skel_in;
+extern FILE *skel_out;
+extern int skel__flex_debug;
+extern int skel_lineno;
diff --git a/src/scan-skel.l b/src/scan-skel.l
new file mode 100644
index 0000000..c84eea1
--- /dev/null
+++ b/src/scan-skel.l
@@ -0,0 +1,134 @@
+/* Scan Bison Skeletons. -*- C -*-
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+%option nodefault noyywrap nounput never-interactive debug
+%option prefix="skel_" outfile="lex.yy.c"
+
+%{
+/* Work around a bug in flex 2.5.31. See Debian bug 333231
+ <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>. */
+#undef skel_wrap
+#define skel_wrap() 1
+
+#include "system.h"
+
+#include <error.h>
+#include <quotearg.h>
+
+#include "complain.h"
+#include "getargs.h"
+#include "files.h"
+#include "scan-skel.h"
+
+/* Pacify "gcc -Wmissing-prototypes" when flex 2.5.31 is used. */
+int skel_lex (void);
+int skel_get_lineno (void);
+FILE *skel_get_in (void);
+FILE *skel_get_out (void);
+int skel_get_leng (void);
+char *skel_get_text (void);
+void skel_set_lineno (int);
+void skel_set_in (FILE *);
+void skel_set_out (FILE *);
+int skel_get_debug (void);
+void skel_set_debug (int);
+int skel_lex_destroy (void);
+
+#define QPUTS(String) \
+ fputs (quotearg_style (c_quoting_style, String), yyout)
+
+#define BASE_QPUTS(File) \
+ QPUTS (base_name (File))
+
+%}
+%%
+
+%{
+ int lineno IF_LINT (= 0);
+ char *outname = NULL;
+%}
+
+"@output ".*\n {
+ char const *file_name = yytext + sizeof "@output " - 1;
+ yytext[yyleng - 1] = '\0';
+
+ /* Decode special file names. They include the directory part,
+ contrary to their "free" occurrences, used for issuing #includes,
+ which must not include the directory part. */
+
+ if (*file_name == '@')
+ {
+ if (strcmp (file_name, "@output_header_name@") == 0)
+ file_name = spec_defines_file;
+ else if (strcmp (file_name, "@output_parser_name@") == 0)
+ file_name = parser_file_name;
+ else
+ fatal ("invalid token in skeleton: %s", yytext);
+ }
+ if (outname)
+ {
+ free (outname);
+ xfclose (yyout);
+ }
+ outname = xstrdup (file_name);
+ yyout = xfopen (outname, "w");
+ lineno = 1;
+}
+
+"@@" fputc ('@', yyout);
+"@{" fputc ('[', yyout);
+"@}" fputc (']', yyout);
+
+"@oline@" fprintf (yyout, "%d", lineno + 1);
+"@ofile@" QPUTS (outname);
+"@dir_prefix@" QPUTS (dir_prefix);
+"@output_parser_name@" BASE_QPUTS (parser_file_name);
+"@output_header_name@" BASE_QPUTS (spec_defines_file);
+
+ /* This pattern must not match more than the previous @ patterns. */
+@[^{}@\n]* fatal ("invalid @ in skeleton: %s", yytext);
+\n lineno++; ECHO;
+[^@\n]+ ECHO;
+
+<<EOF>> {
+ if (outname)
+ {
+ free (outname);
+ xfclose (yyout);
+ }
+ return EOF;
+}
+%%
+
+/*------------------------.
+| Scan a Bison skeleton. |
+`------------------------*/
+
+void
+scan_skel (FILE *in)
+{
+ skel_in = in;
+ skel__flex_debug = trace_flag & trace_skeleton;
+ skel_lex ();
+ /* Reclaim Flex's buffers. */
+ yy_delete_buffer (YY_CURRENT_BUFFER);
+}
diff --git a/src/state.c b/src/state.c
new file mode 100644
index 0000000..4eb39f9
--- /dev/null
+++ b/src/state.c
@@ -0,0 +1,370 @@
+/* Type definitions for nondeterministic finite state machine for Bison.
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <hash.h>
+
+#include "complain.h"
+#include "gram.h"
+#include "state.h"
+
+
+ /*-------------------.
+ | Shifts and Gotos. |
+ `-------------------*/
+
+
+/*-----------------------------------------.
+| Create a new array of NUM shifts/gotos. |
+`-----------------------------------------*/
+
+static transitions *
+transitions_new (int num, state **the_states)
+{
+ size_t states_size = num * sizeof *the_states;
+ transitions *res = xmalloc (offsetof (transitions, states) + states_size);
+ res->num = num;
+ memcpy (res->states, the_states, states_size);
+ return res;
+}
+
+
+/*-------------------------------------------------------.
+| Return the state such that SHIFTS contain a shift/goto |
+| to it on SYM. Abort if none found. |
+`-------------------------------------------------------*/
+
+state *
+transitions_to (transitions *shifts, symbol_number sym)
+{
+ int j;
+ for (j = 0; ; j++)
+ {
+ assert (j < shifts->num);
+ if (TRANSITION_SYMBOL (shifts, j) == sym)
+ return shifts->states[j];
+ }
+}
+
+
+ /*--------------------.
+ | Error transitions. |
+ `--------------------*/
+
+
+/*---------------------------------.
+| Create a new array of NUM errs. |
+`---------------------------------*/
+
+errs *
+errs_new (int num, symbol **tokens)
+{
+ size_t symbols_size = num * sizeof *tokens;
+ errs *res = xmalloc (offsetof (errs, symbols) + symbols_size);
+ res->num = num;
+ memcpy (res->symbols, tokens, symbols_size);
+ return res;
+}
+
+
+
+
+ /*-------------.
+ | Reductions. |
+ `-------------*/
+
+
+/*---------------------------------------.
+| Create a new array of NUM reductions. |
+`---------------------------------------*/
+
+static reductions *
+reductions_new (int num, rule **reds)
+{
+ size_t rules_size = num * sizeof *reds;
+ reductions *res = xmalloc (offsetof (reductions, rules) + rules_size);
+ res->num = num;
+ res->look_ahead_tokens = NULL;
+ memcpy (res->rules, reds, rules_size);
+ return res;
+}
+
+
+
+ /*---------.
+ | States. |
+ `---------*/
+
+
+state_number nstates = 0;
+/* FINAL_STATE is properly set by new_state when it recognizes its
+ accessing symbol: $end. */
+state *final_state = NULL;
+
+
+/*------------------------------------------------------------------.
+| Create a new state with ACCESSING_SYMBOL, for those items. Store |
+| it in the state hash table. |
+`------------------------------------------------------------------*/
+
+state *
+state_new (symbol_number accessing_symbol,
+ size_t nitems, item_number *core)
+{
+ state *res;
+ size_t items_size = nitems * sizeof *core;
+
+ assert (nstates < STATE_NUMBER_MAXIMUM);
+
+ res = xmalloc (offsetof (state, items) + items_size);
+ res->number = nstates++;
+ res->accessing_symbol = accessing_symbol;
+ res->transitions = NULL;
+ res->reductions = NULL;
+ res->errs = NULL;
+ res->consistent = 0;
+ res->solved_conflicts = NULL;
+
+ res->nitems = nitems;
+ memcpy (res->items, core, items_size);
+
+ state_hash_insert (res);
+
+ return res;
+}
+
+
+/*---------.
+| Free S. |
+`---------*/
+
+static void
+state_free (state *s)
+{
+ free (s->transitions);
+ free (s->reductions);
+ free (s->errs);
+ free (s);
+}
+
+
+/*---------------------------.
+| Set the transitions of S. |
+`---------------------------*/
+
+void
+state_transitions_set (state *s, int num, state **trans)
+{
+ assert (!s->transitions);
+ s->transitions = transitions_new (num, trans);
+}
+
+
+/*--------------------------.
+| Set the reductions of S. |
+`--------------------------*/
+
+void
+state_reductions_set (state *s, int num, rule **reds)
+{
+ assert (!s->reductions);
+ s->reductions = reductions_new (num, reds);
+}
+
+
+int
+state_reduction_find (state *s, rule *r)
+{
+ int i;
+ reductions *reds = s->reductions;
+ for (i = 0; i < reds->num; ++i)
+ if (reds->rules[i] == r)
+ return i;
+ return -1;
+}
+
+
+/*--------------------.
+| Set the errs of S. |
+`--------------------*/
+
+void
+state_errs_set (state *s, int num, symbol **tokens)
+{
+ assert (!s->errs);
+ s->errs = errs_new (num, tokens);
+}
+
+
+
+/*---------------------------------------------------.
+| Print on OUT all the look-ahead tokens such that S |
+| wants to reduce R. |
+`---------------------------------------------------*/
+
+void
+state_rule_look_ahead_tokens_print (state *s, rule *r, FILE *out)
+{
+ /* Find the reduction we are handling. */
+ reductions *reds = s->reductions;
+ int red = state_reduction_find (s, r);
+
+ /* Print them if there are. */
+ if (reds->look_ahead_tokens && red != -1)
+ {
+ bitset_iterator biter;
+ int k;
+ char const *sep = "";
+ fprintf (out, " [");
+ BITSET_FOR_EACH (biter, reds->look_ahead_tokens[red], k, 0)
+ {
+ fprintf (out, "%s%s", sep, symbols[k]->tag);
+ sep = ", ";
+ }
+ fprintf (out, "]");
+ }
+}
+
+
+/*---------------------.
+| A state hash table. |
+`---------------------*/
+
+/* Initial capacity of states hash table. */
+#define HT_INITIAL_CAPACITY 257
+
+static struct hash_table *state_table = NULL;
+
+/* Two states are equal if they have the same core items. */
+static inline bool
+state_compare (state const *s1, state const *s2)
+{
+ size_t i;
+
+ if (s1->nitems != s2->nitems)
+ return false;
+
+ for (i = 0; i < s1->nitems; ++i)
+ if (s1->items[i] != s2->items[i])
+ return false;
+
+ return true;
+}
+
+static bool
+state_comparator (void const *s1, void const *s2)
+{
+ return state_compare (s1, s2);
+}
+
+static inline size_t
+state_hash (state const *s, size_t tablesize)
+{
+ /* Add up the state's item numbers to get a hash key. */
+ size_t key = 0;
+ size_t i;
+ for (i = 0; i < s->nitems; ++i)
+ key += s->items[i];
+ return key % tablesize;
+}
+
+static size_t
+state_hasher (void const *s, size_t tablesize)
+{
+ return state_hash (s, tablesize);
+}
+
+
+/*-------------------------------.
+| Create the states hash table. |
+`-------------------------------*/
+
+void
+state_hash_new (void)
+{
+ state_table = hash_initialize (HT_INITIAL_CAPACITY,
+ NULL,
+ state_hasher,
+ state_comparator,
+ NULL);
+}
+
+
+/*---------------------------------------------.
+| Free the states hash table, not the states. |
+`---------------------------------------------*/
+
+void
+state_hash_free (void)
+{
+ hash_free (state_table);
+}
+
+
+/*-----------------------------------.
+| Insert S in the state hash table. |
+`-----------------------------------*/
+
+void
+state_hash_insert (state *s)
+{
+ hash_insert (state_table, s);
+}
+
+
+/*------------------------------------------------------------------.
+| Find the state associated to the CORE, and return it. If it does |
+| not exist yet, return NULL. |
+`------------------------------------------------------------------*/
+
+state *
+state_hash_lookup (size_t nitems, item_number *core)
+{
+ size_t items_size = nitems * sizeof *core;
+ state *probe = xmalloc (offsetof (state, items) + items_size);
+ state *entry;
+
+ probe->nitems = nitems;
+ memcpy (probe->items, core, items_size);
+ entry = hash_lookup (state_table, probe);
+ free (probe);
+ return entry;
+}
+
+/* All the decorated states, indexed by the state number. */
+state **states = NULL;
+
+
+/*----------------------.
+| Free all the states. |
+`----------------------*/
+
+void
+states_free (void)
+{
+ state_number i;
+ for (i = 0; i < nstates; ++i)
+ state_free (states[i]);
+ free (states);
+}
diff --git a/src/state.h b/src/state.h
new file mode 100644
index 0000000..440cd46
--- /dev/null
+++ b/src/state.h
@@ -0,0 +1,257 @@
+/* Type definitions for nondeterministic finite state machine for Bison.
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002, 2003, 2004 Free
+ Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+
+/* These type definitions are used to represent a nondeterministic
+ finite state machine that parses the specified grammar. This
+ information is generated by the function generate_states in the
+ file LR0.
+
+ Each state of the machine is described by a set of items --
+ particular positions in particular rules -- that are the possible
+ places where parsing could continue when the machine is in this
+ state. These symbols at these items are the allowable inputs that
+ can follow now.
+
+ A core represents one state. States are numbered in the NUMBER
+ field. When generate_states is finished, the starting state is
+ state 0 and NSTATES is the number of states. (FIXME: This sentence
+ is no longer true: A transition to a state whose state number is
+ NSTATES indicates termination.) All the cores are chained together
+ and FIRST_STATE points to the first one (state 0).
+
+ For each state there is a particular symbol which must have been
+ the last thing accepted to reach that state. It is the
+ ACCESSING_SYMBOL of the core.
+
+ Each core contains a vector of NITEMS items which are the indices
+ in the RITEMS vector of the items that are selected in this state.
+
+ The two types of actions are shifts/gotos (push the look-ahead token
+ and read another/goto to the state designated by a nterm) and
+ reductions (combine the last n things on the stack via a rule,
+ replace them with the symbol that the rule derives, and leave the
+ look-ahead token alone). When the states are generated, these
+ actions are represented in two other lists.
+
+ Each transition structure describes the possible transitions out
+ of one state, the state whose number is in the number field. Each
+ contains a vector of numbers of the states that transitions can go
+ to. The accessing_symbol fields of those states' cores say what
+ kind of input leads to them.
+
+ A transition to state zero should be ignored: conflict resolution
+ deletes transitions by having them point to zero.
+
+ Each reductions structure describes the possible reductions at the
+ state whose number is in the number field. The data is a list of
+ nreds rules, represented by their rule numbers. first_reduction
+ points to the list of these structures.
+
+ Conflict resolution can decide that certain tokens in certain
+ states should explicitly be errors (for implementing %nonassoc).
+ For each state, the tokens that are errors for this reason are
+ recorded in an errs structure, which holds the token numbers.
+
+ There is at least one goto transition present in state zero. It
+ leads to a next-to-final state whose accessing_symbol is the
+ grammar's start symbol. The next-to-final state has one shift to
+ the final state, whose accessing_symbol is zero (end of input).
+ The final state has one shift, which goes to the termination state.
+ The reason for the extra state at the end is to placate the
+ parser's strategy of making all decisions one token ahead of its
+ actions. */
+
+#ifndef STATE_H_
+# define STATE_H_
+
+# include <bitset.h>
+
+# include "gram.h"
+# include "symtab.h"
+
+
+/*-------------------.
+| Numbering states. |
+`-------------------*/
+
+typedef int state_number;
+# define STATE_NUMBER_MAXIMUM INT_MAX
+
+/* Be ready to map a state_number to an int. */
+static inline int
+state_number_as_int (state_number s)
+{
+ return s;
+}
+
+
+typedef struct state state;
+
+/*--------------.
+| Transitions. |
+`--------------*/
+
+typedef struct
+{
+ int num;
+ state *states[1];
+} transitions;
+
+
+/* What is the symbol labelling the transition to
+ TRANSITIONS->states[Num]? Can be a token (amongst which the error
+ token), or non terminals in case of gotos. */
+
+#define TRANSITION_SYMBOL(Transitions, Num) \
+ (Transitions->states[Num]->accessing_symbol)
+
+/* Is the TRANSITIONS->states[Num] a shift? (as opposed to gotos). */
+
+#define TRANSITION_IS_SHIFT(Transitions, Num) \
+ (ISTOKEN (TRANSITION_SYMBOL (Transitions, Num)))
+
+/* Is the TRANSITIONS->states[Num] a goto?. */
+
+#define TRANSITION_IS_GOTO(Transitions, Num) \
+ (!TRANSITION_IS_SHIFT (Transitions, Num))
+
+/* Is the TRANSITIONS->states[Num] labelled by the error token? */
+
+#define TRANSITION_IS_ERROR(Transitions, Num) \
+ (TRANSITION_SYMBOL (Transitions, Num) == errtoken->number)
+
+/* When resolving a SR conflicts, if the reduction wins, the shift is
+ disabled. */
+
+#define TRANSITION_DISABLE(Transitions, Num) \
+ (Transitions->states[Num] = NULL)
+
+#define TRANSITION_IS_DISABLED(Transitions, Num) \
+ (Transitions->states[Num] == NULL)
+
+
+/* Iterate over each transition over a token (shifts). */
+#define FOR_EACH_SHIFT(Transitions, Iter) \
+ for (Iter = 0; \
+ Iter < Transitions->num \
+ && (TRANSITION_IS_DISABLED (Transitions, Iter) \
+ || TRANSITION_IS_SHIFT (Transitions, Iter)); \
+ ++Iter) \
+ if (!TRANSITION_IS_DISABLED (Transitions, Iter))
+
+
+/* Return the state such SHIFTS contain a shift/goto to it on SYM.
+ Abort if none found. */
+struct state *transitions_to (transitions *shifts, symbol_number sym);
+
+
+/*-------.
+| Errs. |
+`-------*/
+
+typedef struct
+{
+ int num;
+ symbol *symbols[1];
+} errs;
+
+errs *errs_new (int num, symbol **tokens);
+
+
+/*-------------.
+| Reductions. |
+`-------------*/
+
+typedef struct
+{
+ int num;
+ bitset *look_ahead_tokens;
+ rule *rules[1];
+} reductions;
+
+
+
+/*---------.
+| states. |
+`---------*/
+
+struct state
+{
+ state_number number;
+ symbol_number accessing_symbol;
+ transitions *transitions;
+ reductions *reductions;
+ errs *errs;
+
+ /* Nonzero if no look-ahead is needed to decide what to do in state S. */
+ char consistent;
+
+ /* If some conflicts were solved thanks to precedence/associativity,
+ a human readable description of the resolution. */
+ const char *solved_conflicts;
+
+ /* Its items. Must be last, since ITEMS can be arbitrarily large.
+ */
+ size_t nitems;
+ item_number items[1];
+};
+
+extern state_number nstates;
+extern state *final_state;
+
+/* Create a new state with ACCESSING_SYMBOL for those items. */
+state *state_new (symbol_number accessing_symbol,
+ size_t core_size, item_number *core);
+
+/* Set the transitions of STATE. */
+void state_transitions_set (state *s, int num, state **trans);
+
+/* Set the reductions of STATE. */
+void state_reductions_set (state *s, int num, rule **reds);
+
+int state_reduction_find (state *s, rule *r);
+
+/* Set the errs of STATE. */
+void state_errs_set (state *s, int num, symbol **errors);
+
+/* Print on OUT all the look-ahead tokens such that this STATE wants to
+ reduce R. */
+void state_rule_look_ahead_tokens_print (state *s, rule *r, FILE *out);
+
+/* Create/destroy the states hash table. */
+void state_hash_new (void);
+void state_hash_free (void);
+
+/* Find the state associated to the CORE, and return it. If it does
+ not exist yet, return NULL. */
+state *state_hash_lookup (size_t core_size, item_number *core);
+
+/* Insert STATE in the state hash table. */
+void state_hash_insert (state *s);
+
+/* All the states, indexed by the state number. */
+extern state **states;
+
+/* Free all the states. */
+void states_free (void);
+#endif /* !STATE_H_ */
diff --git a/src/symlist.c b/src/symlist.c
new file mode 100644
index 0000000..70db82f
--- /dev/null
+++ b/src/symlist.c
@@ -0,0 +1,162 @@
+/* Lists of symbols for Bison
+
+ Copyright (C) 2002, 2005, 2006 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include "complain.h"
+#include "symlist.h"
+
+
+/*--------------------------------------.
+| Create a list containing SYM at LOC. |
+`--------------------------------------*/
+
+symbol_list *
+symbol_list_new (symbol *sym, location loc)
+{
+ symbol_list *res = xmalloc (sizeof *res);
+
+ res->sym = sym;
+ res->location = loc;
+
+ res->midrule = NULL;
+
+ res->action = NULL;
+ res->used = false;
+
+ res->ruleprec = NULL;
+ res->dprec = 0;
+ res->merger = 0;
+
+ res->next = NULL;
+
+ return res;
+}
+
+
+/*------------------.
+| Print this list. |
+`------------------*/
+
+void
+symbol_list_print (const symbol_list *l, FILE *f)
+{
+ for (/* Nothing. */; l && l->sym; l = l->next)
+ {
+ symbol_print (l->sym, f);
+ fprintf (stderr, l->used ? " used" : " unused");
+ if (l && l->sym)
+ fprintf (f, ", ");
+ }
+}
+
+
+/*---------------------------------.
+| Prepend SYM at LOC to the LIST. |
+`---------------------------------*/
+
+symbol_list *
+symbol_list_prepend (symbol_list *list, symbol *sym, location loc)
+{
+ symbol_list *res = symbol_list_new (sym, loc);
+ res->next = list;
+ return res;
+}
+
+
+/*-------------------------------------------------.
+| Free the LIST, but not the symbols it contains. |
+`-------------------------------------------------*/
+
+void
+symbol_list_free (symbol_list *list)
+{
+ LIST_FREE (symbol_list, list);
+}
+
+
+/*--------------------.
+| Return its length. |
+`--------------------*/
+
+unsigned int
+symbol_list_length (const symbol_list *l)
+{
+ int res = 0;
+ for (/* Nothing. */; l; l = l->next)
+ ++res;
+ return res;
+}
+
+
+/*--------------------------------.
+| Get symbol N in symbol list L. |
+`--------------------------------*/
+
+symbol_list *
+symbol_list_n_get (symbol_list *l, int n)
+{
+ int i;
+
+ if (n < 0)
+ return NULL;
+
+ for (i = 0; i < n; ++i)
+ {
+ l = l->next;
+ if (l == NULL || l->sym == NULL)
+ return NULL;
+ }
+
+ return l;
+}
+
+
+/*--------------------------------------------------------------.
+| Get the data type (alternative in the union) of the value for |
+| symbol N in symbol list L. |
+`--------------------------------------------------------------*/
+
+uniqstr
+symbol_list_n_type_name_get (symbol_list *l, location loc, int n)
+{
+ l = symbol_list_n_get (l, n);
+ if (!l)
+ {
+ complain_at (loc, _("invalid $ value: $%d"), n);
+ return NULL;
+ }
+ return l->sym->type_name;
+}
+
+
+/*----------------------------------------.
+| The symbol N in symbol list L is USED. |
+`----------------------------------------*/
+
+void
+symbol_list_n_used_set (symbol_list *l, int n, bool used)
+{
+ l = symbol_list_n_get (l, n);
+ if (l)
+ l->used = used;
+}
diff --git a/src/symlist.h b/src/symlist.h
new file mode 100644
index 0000000..0423d01
--- /dev/null
+++ b/src/symlist.h
@@ -0,0 +1,83 @@
+/* Lists of symbols for Bison
+
+ Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef SYMLIST_H_
+# define SYMLIST_H_
+
+# include "location.h"
+# include "symtab.h"
+
+/* A list of symbols, used during the parsing to store the rules. */
+typedef struct symbol_list
+{
+ /* The symbol. */
+ symbol *sym;
+ location location;
+
+ /* If this symbol is the generated lhs for a mid-rule, a pointer to
+ that mid-rule. */
+ struct symbol_list *midrule;
+
+ /* The action is attached to the LHS of a rule. */
+ const char *action;
+ location action_location;
+
+ /* Whether this symbol's value is used in the current action. */
+ bool used;
+
+ /* Precedence/associativity. */
+ symbol *ruleprec;
+ int dprec;
+ int merger;
+
+ /* The list. */
+ struct symbol_list *next;
+} symbol_list;
+
+
+/* Create a list containing SYM at LOC. */
+symbol_list *symbol_list_new (symbol *sym, location loc);
+
+/* Print it. */
+void symbol_list_print (const symbol_list *l, FILE *f);
+
+/* Prepend SYM at LOC to the LIST. */
+symbol_list *symbol_list_prepend (symbol_list *l,
+ symbol *sym,
+ location loc);
+
+/* Free the LIST, but not the symbols it contains. */
+void symbol_list_free (symbol_list *l);
+
+/* Return its length. */
+unsigned int symbol_list_length (const symbol_list *l);
+
+/* Get symbol N in symbol list L. */
+symbol_list *symbol_list_n_get (symbol_list *l, int n);
+
+/* Get the data type (alternative in the union) of the value for
+ symbol N in rule RULE. */
+uniqstr symbol_list_n_type_name_get (symbol_list *l, location loc, int n);
+
+/* The symbol N in symbol list L is USED. */
+void symbol_list_n_used_set (symbol_list *l, int n, bool used);
+
+#endif /* !SYMLIST_H_ */
diff --git a/src/symtab.c b/src/symtab.c
new file mode 100644
index 0000000..ef59c6e
--- /dev/null
+++ b/src/symtab.c
@@ -0,0 +1,657 @@
+/* Symbol table manager for Bison.
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002, 2004, 2005, 2006 Free
+ Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <hash.h>
+#include <quotearg.h>
+
+#include "complain.h"
+#include "gram.h"
+#include "symtab.h"
+
+/*------------------------.
+| Distinguished symbols. |
+`------------------------*/
+
+symbol *errtoken = NULL;
+symbol *undeftoken = NULL;
+symbol *endtoken = NULL;
+symbol *accept = NULL;
+symbol *startsymbol = NULL;
+location startsymbol_location;
+
+/*---------------------------------.
+| Create a new symbol, named TAG. |
+`---------------------------------*/
+
+static symbol *
+symbol_new (uniqstr tag, location loc)
+{
+ symbol *res = xmalloc (sizeof *res);
+
+ uniqstr_assert (tag);
+ res->tag = tag;
+ res->location = loc;
+
+ res->type_name = NULL;
+ res->destructor = NULL;
+ res->printer = NULL;
+
+ res->number = NUMBER_UNDEFINED;
+ res->prec = 0;
+ res->assoc = undef_assoc;
+ res->user_token_number = USER_NUMBER_UNDEFINED;
+
+ res->alias = NULL;
+ res->class = unknown_sym;
+ res->declared = false;
+
+ if (nsyms == SYMBOL_NUMBER_MAXIMUM)
+ fatal (_("too many symbols in input grammar (limit is %d)"),
+ SYMBOL_NUMBER_MAXIMUM);
+ nsyms++;
+ return res;
+}
+
+
+/*-----------------.
+| Print a symbol. |
+`-----------------*/
+
+#define SYMBOL_ATTR_PRINT(Attr) \
+ if (s->Attr) \
+ fprintf (f, " %s { %s }", #Attr, s->Attr)
+
+void
+symbol_print (symbol *s, FILE *f)
+{
+ if (s)
+ {
+ fprintf (f, "\"%s\"", s->tag);
+ SYMBOL_ATTR_PRINT (type_name);
+ SYMBOL_ATTR_PRINT (destructor);
+ SYMBOL_ATTR_PRINT (printer);
+ }
+ else
+ fprintf (f, "<NULL>");
+}
+
+#undef SYMBOL_ATTR_PRINT
+
+/*------------------------------------------------------------------.
+| Complain that S's WHAT is redeclared at SECOND, and was first set |
+| at FIRST. |
+`------------------------------------------------------------------*/
+
+static void
+redeclaration (symbol* s, const char *what, location first, location second)
+{
+ complain_at (second, _("%s redeclaration for %s"), what, s->tag);
+ complain_at (first, _("first declaration"));
+}
+
+
+/*-----------------------------------------------------------------.
+| Set the TYPE_NAME associated with SYM. Does nothing if passed 0 |
+| as TYPE_NAME. |
+`-----------------------------------------------------------------*/
+
+void
+symbol_type_set (symbol *sym, uniqstr type_name, location loc)
+{
+ if (type_name)
+ {
+ if (sym->type_name)
+ redeclaration (sym, "%type", sym->type_location, loc);
+ uniqstr_assert (type_name);
+ sym->type_name = type_name;
+ sym->type_location = loc;
+ }
+}
+
+
+/*------------------------------------------------------------------.
+| Set the DESTRUCTOR associated with SYM. Do nothing if passed 0. |
+`------------------------------------------------------------------*/
+
+void
+symbol_destructor_set (symbol *sym, const char *destructor, location loc)
+{
+ if (destructor)
+ {
+ if (sym->destructor)
+ redeclaration (sym, "%destructor", sym->destructor_location, loc);
+ sym->destructor = destructor;
+ sym->destructor_location = loc;
+ }
+}
+
+
+/*---------------------------------------------------------------.
+| Set the PRINTER associated with SYM. Do nothing if passed 0. |
+`---------------------------------------------------------------*/
+
+void
+symbol_printer_set (symbol *sym, const char *printer, location loc)
+{
+ if (printer)
+ {
+ if (sym->printer)
+ redeclaration (sym, "%printer", sym->destructor_location, loc);
+ sym->printer = printer;
+ sym->printer_location = loc;
+ }
+}
+
+
+/*-----------------------------------------------------------------.
+| Set the PRECEDENCE associated with SYM. Does nothing if invoked |
+| with UNDEF_ASSOC as ASSOC. |
+`-----------------------------------------------------------------*/
+
+void
+symbol_precedence_set (symbol *sym, int prec, assoc a, location loc)
+{
+ if (a != undef_assoc)
+ {
+ if (sym->prec != 0)
+ redeclaration (sym, assoc_to_string (a), sym->prec_location, loc);
+ sym->prec = prec;
+ sym->assoc = a;
+ sym->prec_location = loc;
+ }
+
+ /* Only terminals have a precedence. */
+ symbol_class_set (sym, token_sym, loc, false);
+}
+
+
+/*------------------------------------.
+| Set the CLASS associated with SYM. |
+`------------------------------------*/
+
+void
+symbol_class_set (symbol *sym, symbol_class class, location loc, bool declaring)
+{
+ if (sym->class != unknown_sym && sym->class != class)
+ {
+ complain_at (loc, _("symbol %s redefined"), sym->tag);
+ sym->declared = false;
+ }
+
+ if (class == nterm_sym && sym->class != nterm_sym)
+ sym->number = nvars++;
+ else if (class == token_sym && sym->number == NUMBER_UNDEFINED)
+ sym->number = ntokens++;
+
+ sym->class = class;
+
+ if (declaring)
+ {
+ if (sym->declared)
+ warn_at (loc, _("symbol %s redeclared"), sym->tag);
+ sym->declared = true;
+ }
+}
+
+
+/*------------------------------------------------.
+| Set the USER_TOKEN_NUMBER associated with SYM. |
+`------------------------------------------------*/
+
+void
+symbol_user_token_number_set (symbol *sym, int user_token_number, location loc)
+{
+ assert (sym->class == token_sym);
+
+ if (sym->user_token_number != USER_NUMBER_UNDEFINED
+ && sym->user_token_number != user_token_number)
+ complain_at (loc, _("redefining user token number of %s"), sym->tag);
+
+ sym->user_token_number = user_token_number;
+ /* User defined $end token? */
+ if (user_token_number == 0)
+ {
+ endtoken = sym;
+ endtoken->number = 0;
+ /* It is always mapped to 0, so it was already counted in
+ NTOKENS. */
+ --ntokens;
+ }
+}
+
+
+/*----------------------------------------------------------.
+| If SYM is not defined, report an error, and consider it a |
+| nonterminal. |
+`----------------------------------------------------------*/
+
+static inline bool
+symbol_check_defined (symbol *sym)
+{
+ if (sym->class == unknown_sym)
+ {
+ complain_at
+ (sym->location,
+ _("symbol %s is used, but is not defined as a token and has no rules"),
+ sym->tag);
+ sym->class = nterm_sym;
+ sym->number = nvars++;
+ }
+
+ return true;
+}
+
+static bool
+symbol_check_defined_processor (void *sym, void *null ATTRIBUTE_UNUSED)
+{
+ return symbol_check_defined (sym);
+}
+
+
+/*------------------------------------------------------------------.
+| Declare the new symbol SYM. Make it an alias of SYMVAL, and type |
+| SYMVAL with SYM's type. |
+`------------------------------------------------------------------*/
+
+void
+symbol_make_alias (symbol *sym, symbol *symval, location loc)
+{
+ if (symval->alias)
+ warn_at (loc, _("symbol `%s' used more than once as a literal string"),
+ symval->tag);
+ else if (sym->alias)
+ warn_at (loc, _("symbol `%s' given more than one literal string"),
+ sym->tag);
+ else
+ {
+ symval->class = token_sym;
+ symval->user_token_number = sym->user_token_number;
+ sym->user_token_number = USER_NUMBER_ALIAS;
+ symval->alias = sym;
+ sym->alias = symval;
+ /* sym and symval combined are only one symbol. */
+ nsyms--;
+ ntokens--;
+ assert (ntokens == sym->number || ntokens == symval->number);
+ sym->number = symval->number =
+ (symval->number < sym->number) ? symval->number : sym->number;
+ symbol_type_set (symval, sym->type_name, loc);
+ }
+}
+
+
+/*---------------------------------------------------------.
+| Check that THIS, and its alias, have same precedence and |
+| associativity. |
+`---------------------------------------------------------*/
+
+static inline void
+symbol_check_alias_consistency (symbol *this)
+{
+ symbol *alias = this;
+ symbol *orig = this->alias;
+
+ /* Check only those that _are_ the aliases. */
+ if (!(this->alias && this->user_token_number == USER_NUMBER_ALIAS))
+ return;
+
+ if (orig->type_name != alias->type_name)
+ {
+ if (orig->type_name)
+ symbol_type_set (alias, orig->type_name, orig->type_location);
+ else
+ symbol_type_set (orig, alias->type_name, alias->type_location);
+ }
+
+
+ if (orig->destructor || alias->destructor)
+ {
+ if (orig->destructor)
+ symbol_destructor_set (alias, orig->destructor,
+ orig->destructor_location);
+ else
+ symbol_destructor_set (orig, alias->destructor,
+ alias->destructor_location);
+ }
+
+ if (orig->printer || alias->printer)
+ {
+ if (orig->printer)
+ symbol_printer_set (alias, orig->printer, orig->printer_location);
+ else
+ symbol_printer_set (orig, alias->printer, alias->printer_location);
+ }
+
+ if (alias->prec || orig->prec)
+ {
+ if (orig->prec)
+ symbol_precedence_set (alias, orig->prec, orig->assoc,
+ orig->prec_location);
+ else
+ symbol_precedence_set (orig, alias->prec, alias->assoc,
+ alias->prec_location);
+ }
+}
+
+static bool
+symbol_check_alias_consistency_processor (void *this,
+ void *null ATTRIBUTE_UNUSED)
+{
+ symbol_check_alias_consistency (this);
+ return true;
+}
+
+
+/*-------------------------------------------------------------------.
+| Assign a symbol number, and write the definition of the token name |
+| into FDEFINES. Put in SYMBOLS. |
+`-------------------------------------------------------------------*/
+
+static inline bool
+symbol_pack (symbol *this)
+{
+ if (this->class == nterm_sym)
+ {
+ this->number += ntokens;
+ }
+ else if (this->alias)
+ {
+ /* This symbol and its alias are a single token defn.
+ Allocate a tokno, and assign to both check agreement of
+ prec and assoc fields and make both the same */
+ if (this->number == NUMBER_UNDEFINED)
+ {
+ if (this == endtoken || this->alias == endtoken)
+ this->number = this->alias->number = 0;
+ else
+ {
+ assert (this->alias->number != NUMBER_UNDEFINED);
+ this->number = this->alias->number;
+ }
+ }
+ /* Do not do processing below for USER_NUMBER_ALIASes. */
+ if (this->user_token_number == USER_NUMBER_ALIAS)
+ return true;
+ }
+ else /* this->class == token_sym */
+ assert (this->number != NUMBER_UNDEFINED);
+
+ symbols[this->number] = this;
+ return true;
+}
+
+static bool
+symbol_pack_processor (void *this, void *null ATTRIBUTE_UNUSED)
+{
+ return symbol_pack (this);
+}
+
+
+
+
+/*--------------------------------------------------.
+| Put THIS in TOKEN_TRANSLATIONS if it is a token. |
+`--------------------------------------------------*/
+
+static inline bool
+symbol_translation (symbol *this)
+{
+ /* Non-terminal? */
+ if (this->class == token_sym
+ && this->user_token_number != USER_NUMBER_ALIAS)
+ {
+ /* A token which translation has already been set? */
+ if (token_translations[this->user_token_number] != undeftoken->number)
+ complain_at (this->location,
+ _("tokens %s and %s both assigned number %d"),
+ symbols[token_translations[this->user_token_number]]->tag,
+ this->tag, this->user_token_number);
+
+ token_translations[this->user_token_number] = this->number;
+ }
+
+ return true;
+}
+
+static bool
+symbol_translation_processor (void *this, void *null ATTRIBUTE_UNUSED)
+{
+ return symbol_translation (this);
+}
+
+
+/*----------------------.
+| A symbol hash table. |
+`----------------------*/
+
+/* Initial capacity of symbols hash table. */
+#define HT_INITIAL_CAPACITY 257
+
+static struct hash_table *symbol_table = NULL;
+
+static inline bool
+hash_compare_symbol (const symbol *m1, const symbol *m2)
+{
+ /* Since tags are unique, we can compare the pointers themselves. */
+ return UNIQSTR_EQ (m1->tag, m2->tag);
+}
+
+static bool
+hash_symbol_comparator (void const *m1, void const *m2)
+{
+ return hash_compare_symbol (m1, m2);
+}
+
+static inline size_t
+hash_symbol (const symbol *m, size_t tablesize)
+{
+ /* Since tags are unique, we can hash the pointer itself. */
+ return ((uintptr_t) m->tag) % tablesize;
+}
+
+static size_t
+hash_symbol_hasher (void const *m, size_t tablesize)
+{
+ return hash_symbol (m, tablesize);
+}
+
+
+/*-------------------------------.
+| Create the symbol hash table. |
+`-------------------------------*/
+
+void
+symbols_new (void)
+{
+ symbol_table = hash_initialize (HT_INITIAL_CAPACITY,
+ NULL,
+ hash_symbol_hasher,
+ hash_symbol_comparator,
+ free);
+}
+
+
+/*----------------------------------------------------------------.
+| Find the symbol named KEY, and return it. If it does not exist |
+| yet, create it. |
+`----------------------------------------------------------------*/
+
+symbol *
+symbol_get (const char *key, location loc)
+{
+ symbol probe;
+ symbol *entry;
+
+ key = uniqstr_new (key);
+ probe.tag = key;
+ entry = hash_lookup (symbol_table, &probe);
+
+ if (!entry)
+ {
+ /* First insertion in the hash. */
+ entry = symbol_new (key, loc);
+ hash_insert (symbol_table, entry);
+ }
+ return entry;
+}
+
+
+/*------------------------------------------------------------------.
+| Generate a dummy nonterminal, whose name cannot conflict with the |
+| user's names. |
+`------------------------------------------------------------------*/
+
+symbol *
+dummy_symbol_get (location loc)
+{
+ /* Incremented for each generated symbol. */
+ static int dummy_count = 0;
+ static char buf[256];
+
+ symbol *sym;
+
+ sprintf (buf, "@%d", ++dummy_count);
+ sym = symbol_get (buf, loc);
+ sym->class = nterm_sym;
+ sym->number = nvars++;
+ return sym;
+}
+
+
+/*-------------------.
+| Free the symbols. |
+`-------------------*/
+
+void
+symbols_free (void)
+{
+ hash_free (symbol_table);
+ free (symbols);
+}
+
+
+/*---------------------------------------------------------------.
+| Look for undefined symbols, report an error, and consider them |
+| terminals. |
+`---------------------------------------------------------------*/
+
+static void
+symbols_do (Hash_processor processor, void *processor_data)
+{
+ hash_do_for_each (symbol_table, processor, processor_data);
+}
+
+
+/*--------------------------------------------------------------.
+| Check that all the symbols are defined. Report any undefined |
+| symbols and consider them nonterminals. |
+`--------------------------------------------------------------*/
+
+void
+symbols_check_defined (void)
+{
+ symbols_do (symbol_check_defined_processor, NULL);
+}
+
+/*------------------------------------------------------------------.
+| Set TOKEN_TRANSLATIONS. Check that no two symbols share the same |
+| number. |
+`------------------------------------------------------------------*/
+
+static void
+symbols_token_translations_init (void)
+{
+ bool num_256_available_p = true;
+ int i;
+
+ /* Find the highest user token number, and whether 256, the POSIX
+ preferred user token number for the error token, is used. */
+ max_user_token_number = 0;
+ for (i = 0; i < ntokens; ++i)
+ {
+ symbol *this = symbols[i];
+ if (this->user_token_number != USER_NUMBER_UNDEFINED)
+ {
+ if (this->user_token_number > max_user_token_number)
+ max_user_token_number = this->user_token_number;
+ if (this->user_token_number == 256)
+ num_256_available_p = false;
+ }
+ }
+
+ /* If 256 is not used, assign it to error, to follow POSIX. */
+ if (num_256_available_p
+ && errtoken->user_token_number == USER_NUMBER_UNDEFINED)
+ errtoken->user_token_number = 256;
+
+ /* Set the missing user numbers. */
+ if (max_user_token_number < 256)
+ max_user_token_number = 256;
+
+ for (i = 0; i < ntokens; ++i)
+ {
+ symbol *this = symbols[i];
+ if (this->user_token_number == USER_NUMBER_UNDEFINED)
+ this->user_token_number = ++max_user_token_number;
+ if (this->user_token_number > max_user_token_number)
+ max_user_token_number = this->user_token_number;
+ }
+
+ token_translations = xnmalloc (max_user_token_number + 1,
+ sizeof *token_translations);
+
+ /* Initialize all entries for literal tokens to 2, the internal
+ token number for $undefined, which represents all invalid inputs.
+ */
+ for (i = 0; i < max_user_token_number + 1; i++)
+ token_translations[i] = undeftoken->number;
+ symbols_do (symbol_translation_processor, NULL);
+}
+
+
+/*----------------------------------------------------------------.
+| Assign symbol numbers, and write definition of token names into |
+| FDEFINES. Set up vectors SYMBOL_TABLE, TAGS of symbols. |
+`----------------------------------------------------------------*/
+
+void
+symbols_pack (void)
+{
+ symbols = xcalloc (nsyms, sizeof *symbols);
+
+ symbols_do (symbol_check_alias_consistency_processor, NULL);
+ symbols_do (symbol_pack_processor, NULL);
+
+ symbols_token_translations_init ();
+
+ if (startsymbol->class == unknown_sym)
+ fatal_at (startsymbol_location,
+ _("the start symbol %s is undefined"),
+ startsymbol->tag);
+ else if (startsymbol->class == token_sym)
+ fatal_at (startsymbol_location,
+ _("the start symbol %s is a token"),
+ startsymbol->tag);
+}
diff --git a/src/symtab.h b/src/symtab.h
new file mode 100644
index 0000000..0f852b7
--- /dev/null
+++ b/src/symtab.h
@@ -0,0 +1,162 @@
+/* Definitions for symtab.c and callers, part of Bison.
+
+ Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2004, 2005, 2006
+ Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef SYMTAB_H_
+# define SYMTAB_H_
+
+# include "assoc.h"
+# include "location.h"
+# include "uniqstr.h"
+
+/*----------.
+| Symbols. |
+`----------*/
+
+/* Symbol classes. */
+typedef enum
+{
+ unknown_sym,
+ token_sym, /* terminal symbol */
+ nterm_sym /* non-terminal */
+} symbol_class;
+
+
+/* Internal token numbers. */
+typedef int symbol_number;
+#define SYMBOL_NUMBER_MAXIMUM INT_MAX
+
+
+typedef struct symbol symbol;
+
+/* When extending this structure, be sure to complete
+ symbol_check_alias_consistency. */
+struct symbol
+{
+ /* The key, name of the symbol. */
+ uniqstr tag;
+ /* The location of its first occurrence. */
+ location location;
+
+ /* Its %type and associated printer and destructor. */
+ uniqstr type_name;
+ location type_location;
+
+ /* Does not own the memory. */
+ const char *destructor;
+ location destructor_location;
+
+ /* Does not own the memory. */
+ const char *printer;
+ location printer_location;
+
+ symbol_number number;
+ location prec_location;
+ int prec;
+ assoc assoc;
+ int user_token_number;
+
+ /* Points to the other in the identifier-symbol pair for an alias.
+ Special value USER_NUMBER_ALIAS in the identifier half of the
+ identifier-symbol pair for an alias. */
+ symbol *alias;
+ symbol_class class;
+ bool declared;
+};
+
+/* Undefined user number. */
+#define USER_NUMBER_UNDEFINED -1
+
+/* `symbol->user_token_number == USER_NUMBER_ALIAS' means this symbol
+ *has* (not is) a string literal alias. For instance, `%token foo
+ "foo"' has `"foo"' numbered regularly, and `foo' numbered as
+ USER_NUMBER_ALIAS. */
+#define USER_NUMBER_ALIAS -9991
+
+/* Undefined internal token number. */
+#define NUMBER_UNDEFINED (-1)
+
+/* Print a symbol (for debugging). */
+void symbol_print (symbol *s, FILE *f);
+
+/* Fetch (or create) the symbol associated to KEY. */
+symbol *symbol_get (const char *key, location loc);
+
+/* Generate a dummy nonterminal, whose name cannot conflict with the
+ user's names. */
+symbol *dummy_symbol_get (location loc);
+
+/* Declare the new symbol SYM. Make it an alias of SYMVAL. */
+void symbol_make_alias (symbol *sym, symbol *symval, location loc);
+
+/* Set the TYPE_NAME associated with SYM. Do nothing if passed 0 as
+ TYPE_NAME. */
+void symbol_type_set (symbol *sym, uniqstr type_name, location loc);
+
+/* Set the DESTRUCTOR associated with SYM. */
+void symbol_destructor_set (symbol *sym, const char *destructor, location loc);
+
+/* Set the PRINTER associated with SYM. */
+void symbol_printer_set (symbol *sym, const char *printer, location loc);
+
+/* Set the PRECEDENCE associated with SYM. Ensure that SYMBOL is a
+ terminal. Do nothing if invoked with UNDEF_ASSOC as ASSOC. */
+void symbol_precedence_set (symbol *sym, int prec, assoc a, location loc);
+
+/* Set the CLASS associated with SYM. */
+void symbol_class_set (symbol *sym, symbol_class class, location loc,
+ bool declaring);
+
+/* Set the USER_TOKEN_NUMBER associated with SYM. */
+void symbol_user_token_number_set (symbol *sym, int user_number, location loc);
+
+
+/* Distinguished symbols. AXIOM is the real start symbol, that used
+ by the automaton. STARTSYMBOL is the one specified by the user.
+ */
+extern symbol *errtoken;
+extern symbol *undeftoken;
+extern symbol *endtoken;
+extern symbol *accept;
+extern symbol *startsymbol;
+extern location startsymbol_location;
+
+
+/*---------------.
+| Symbol table. |
+`---------------*/
+
+
+/* Create the symbol table. */
+void symbols_new (void);
+
+/* Free all the memory allocated for symbols. */
+void symbols_free (void);
+
+/* Check that all the symbols are defined. Report any undefined
+ symbols and consider them nonterminals. */
+void symbols_check_defined (void);
+
+/* Perform various sanity checks, assign symbol numbers, and set up
+ TOKEN_TRANSLATIONS. */
+void symbols_pack (void);
+
+#endif /* !SYMTAB_H_ */
diff --git a/src/system.h b/src/system.h
new file mode 100644
index 0000000..6315790
--- /dev/null
+++ b/src/system.h
@@ -0,0 +1,231 @@
+/* System-dependent definitions for Bison.
+
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free
+ Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef BISON_SYSTEM_H
+#define BISON_SYSTEM_H
+
+/* flex 2.5.31 gratutiously defines macros like INT8_MIN. But this
+ runs afoul of pre-C99 compilers that have <inttypes.h> or
+ <stdint.h>, which are included below if available. It also runs
+ afoul of pre-C99 compilers that define these macros in <limits.h>. */
+#if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901
+# undef INT8_MIN
+# undef INT16_MIN
+# undef INT32_MIN
+# undef INT8_MAX
+# undef INT16_MAX
+# undef UINT8_MAX
+# undef INT32_MAX
+# undef UINT16_MAX
+# undef UINT32_MAX
+#endif
+
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "unlocked-io.h"
+
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#if HAVE_STDINT_H
+# include <stdint.h>
+#endif
+
+#if ! HAVE_UINTPTR_T
+/* This isn't perfect, but it's good enough for Bison, which needs
+ only to hash pointers. */
+typedef size_t uintptr_t;
+#endif
+
+#include <verify.h>
+#include <xalloc.h>
+
+
+/*---------------------.
+| Missing prototypes. |
+`---------------------*/
+
+#include <stpcpy.h>
+
+/* From lib/basename.c. */
+char *base_name (char const *name);
+
+
+/*-----------------.
+| GCC extensions. |
+`-----------------*/
+
+/* Use this to suppress gcc's `...may be used before initialized'
+ warnings. */
+#ifdef lint
+# define IF_LINT(Code) Code
+#else
+# define IF_LINT(Code) /* empty */
+#endif
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later. */
+# if (! defined __GNUC__ || __GNUC__ < 2 \
+ || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
+# define __attribute__(Spec) /* empty */
+# endif
+#endif
+
+/* The __-protected variants of `format' and `printf' attributes
+ are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __format__ format
+# define __printf__ printf
+#endif
+
+#ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
+
+/*------.
+| NLS. |
+`------*/
+
+#include <locale.h>
+
+#include <gettext.h>
+#define _(Msgid) gettext (Msgid)
+#define N_(Msgid) (Msgid)
+
+
+/*-------------------------------.
+| Fix broken compilation flags. |
+`-------------------------------*/
+
+#ifndef LOCALEDIR
+# define LOCALEDIR "/usr/local/share/locale"
+#endif
+
+
+/*-----------.
+| Booleans. |
+`-----------*/
+
+#include <stdbool.h>
+
+
+/*-----------.
+| Obstacks. |
+`-----------*/
+
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free free
+#include <obstack.h>
+
+#define obstack_sgrow(Obs, Str) \
+ obstack_grow (Obs, Str, strlen (Str))
+
+#define obstack_fgrow1(Obs, Format, Arg1) \
+do { \
+ char buf[4096]; \
+ sprintf (buf, Format, Arg1); \
+ obstack_grow (Obs, buf, strlen (buf)); \
+} while (0)
+
+#define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
+do { \
+ char buf[4096]; \
+ sprintf (buf, Format, Arg1, Arg2); \
+ obstack_grow (Obs, buf, strlen (buf)); \
+} while (0)
+
+#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3) \
+do { \
+ char buf[4096]; \
+ sprintf (buf, Format, Arg1, Arg2, Arg3); \
+ obstack_grow (Obs, buf, strlen (buf)); \
+} while (0)
+
+#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4) \
+do { \
+ char buf[4096]; \
+ sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4); \
+ obstack_grow (Obs, buf, strlen (buf)); \
+} while (0)
+
+
+
+/*-----------------------------------------.
+| Extensions to use for the output files. |
+`-----------------------------------------*/
+
+#ifndef OUTPUT_EXT
+# define OUTPUT_EXT ".output"
+#endif
+
+#ifndef TAB_EXT
+# define TAB_EXT ".tab"
+#endif
+
+#ifndef DEFAULT_TMPDIR
+# define DEFAULT_TMPDIR "/tmp"
+#endif
+
+
+
+/*---------------------.
+| Free a linked list. |
+`---------------------*/
+
+#define LIST_FREE(Type, List) \
+do { \
+ Type *_node, *_next; \
+ for (_node = List; _node; _node = _next) \
+ { \
+ _next = _node->next; \
+ free (_node); \
+ } \
+} while (0)
+
+
+/* Assertions. <assert.h>'s assertions are too heavyweight, and can
+ be disabled too easily, so implement it separately here. */
+#define assert(x) ((void) ((x) || (abort (), 0)))
+
+
+/*---------------------------------------------.
+| Debugging memory allocation (must be last). |
+`---------------------------------------------*/
+
+# if WITH_DMALLOC
+# define DMALLOC_FUNC_CHECK
+# include <dmalloc.h>
+# endif /* WITH_DMALLOC */
+
+#endif /* ! BISON_SYSTEM_H */
diff --git a/src/tables.c b/src/tables.c
new file mode 100644
index 0000000..c938139
--- /dev/null
+++ b/src/tables.c
@@ -0,0 +1,861 @@
+/* Output the generated parsing program for Bison.
+
+ Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
+ 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <bitsetv.h>
+#include <quotearg.h>
+
+#include "complain.h"
+#include "conflicts.h"
+#include "files.h"
+#include "getargs.h"
+#include "gram.h"
+#include "lalr.h"
+#include "reader.h"
+#include "symtab.h"
+#include "tables.h"
+
+/* Several tables are indexed both by state and nonterminal numbers.
+ We call such an index a `vector'; i.e., a vector is either a state
+ or a nonterminal number.
+
+ Of course vector_number_t ought to be wide enough to contain
+ state_number and symbol_number. */
+typedef int vector_number;
+
+#if 0 /* Not currently used. */
+static inline vector_number
+state_number_to_vector_number (state_number s)
+{
+ return s;
+}
+#endif
+
+static inline vector_number
+symbol_number_to_vector_number (symbol_number sym)
+{
+ return state_number_as_int (nstates) + sym - ntokens;
+}
+
+int nvectors;
+
+
+/* FROMS and TOS are indexed by vector_number.
+
+ If VECTOR is a nonterminal, (FROMS[VECTOR], TOS[VECTOR]) form an
+ array of state numbers of the non defaulted GOTO on VECTOR.
+
+ If VECTOR is a state, TOS[VECTOR] is the array of actions to do on
+ the (array of) symbols FROMS[VECTOR].
+
+ In both cases, TALLY[VECTOR] is the size of the arrays
+ FROMS[VECTOR], TOS[VECTOR]; and WIDTH[VECTOR] =
+ (FROMS[VECTOR][SIZE] - FROMS[VECTOR][0] + 1) where SIZE =
+ TALLY[VECTOR].
+
+ FROMS therefore contains symbol_number and action_number,
+ TOS state_number and action_number,
+ TALLY sizes,
+ WIDTH differences of FROMS.
+
+ Let base_number be the type of FROMS, TOS, and WIDTH. */
+#define BASE_MAXIMUM INT_MAX
+#define BASE_MINIMUM INT_MIN
+
+static base_number **froms;
+static base_number **tos;
+static unsigned int **conflict_tos;
+static int *tally;
+static base_number *width;
+
+
+/* For a given state, N = ACTROW[SYMBOL]:
+
+ If N = 0, stands for `run the default action'.
+ If N = MIN, stands for `raise a syntax error'.
+ If N > 0, stands for `shift SYMBOL and go to n'.
+ If N < 0, stands for `reduce -N'. */
+typedef int action_number;
+#define ACTION_NUMBER_MINIMUM INT_MIN
+
+static action_number *actrow;
+
+/* FROMS and TOS are reordered to be compressed. ORDER[VECTOR] is the
+ new vector number of VECTOR. We skip `empty' vectors (i.e.,
+ TALLY[VECTOR] = 0), and call these `entries'. */
+static vector_number *order;
+static int nentries;
+
+base_number *base = NULL;
+/* A distinguished value of BASE, negative infinite. During the
+ computation equals to BASE_MINIMUM, later mapped to BASE_NINF to
+ keep parser tables small. */
+base_number base_ninf = 0;
+static base_number *pos = NULL;
+
+static unsigned int *conflrow;
+unsigned int *conflict_table;
+unsigned int *conflict_list;
+int conflict_list_cnt;
+static int conflict_list_free;
+
+/* TABLE_SIZE is the allocated size of both TABLE and CHECK. We start
+ with more or less the original hard-coded value (which was
+ SHRT_MAX). */
+static int table_size = 32768;
+base_number *table;
+base_number *check;
+/* The value used in TABLE to denote explicit syntax errors
+ (%nonassoc), a negative infinite. First defaults to ACTION_NUMBER_MININUM,
+ but in order to keep small tables, renumbered as TABLE_ERROR, which
+ is the smallest (non error) value minus 1. */
+base_number table_ninf = 0;
+static int lowzero;
+int high;
+
+state_number *yydefgoto;
+rule_number *yydefact;
+
+/*----------------------------------------------------------------.
+| If TABLE (and CHECK) appear to be small to be addressed at |
+| DESIRED, grow them. Note that TABLE[DESIRED] is to be used, so |
+| the desired size is at least DESIRED + 1. |
+`----------------------------------------------------------------*/
+
+static void
+table_grow (int desired)
+{
+ int old_size = table_size;
+
+ while (table_size <= desired)
+ table_size *= 2;
+
+ if (trace_flag & trace_resource)
+ fprintf (stderr, "growing table and check from: %d to %d\n",
+ old_size, table_size);
+
+ table = xnrealloc (table, table_size, sizeof *table);
+ conflict_table = xnrealloc (conflict_table, table_size,
+ sizeof *conflict_table);
+ check = xnrealloc (check, table_size, sizeof *check);
+
+ for (/* Nothing. */; old_size < table_size; ++old_size)
+ {
+ table[old_size] = 0;
+ conflict_table[old_size] = 0;
+ check[old_size] = -1;
+ }
+}
+
+
+
+
+/*-------------------------------------------------------------------.
+| For GLR parsers, for each conflicted token in S, as indicated |
+| by non-zero entries in CONFLROW, create a list of possible |
+| reductions that are alternatives to the shift or reduction |
+| currently recorded for that token in S. Store the alternative |
+| reductions followed by a 0 in CONFLICT_LIST, updating |
+| CONFLICT_LIST_CNT, and storing an index to the start of the list |
+| back into CONFLROW. |
+`-------------------------------------------------------------------*/
+
+static void
+conflict_row (state *s)
+{
+ int i, j;
+ reductions *reds = s->reductions;
+
+ if (!nondeterministic_parser)
+ return;
+
+ for (j = 0; j < ntokens; j += 1)
+ if (conflrow[j])
+ {
+ conflrow[j] = conflict_list_cnt;
+
+ /* Find all reductions for token J, and record all that do not
+ match ACTROW[J]. */
+ for (i = 0; i < reds->num; i += 1)
+ if (bitset_test (reds->look_ahead_tokens[i], j)
+ && (actrow[j]
+ != rule_number_as_item_number (reds->rules[i]->number)))
+ {
+ assert (0 < conflict_list_free);
+ conflict_list[conflict_list_cnt] = reds->rules[i]->number + 1;
+ conflict_list_cnt += 1;
+ conflict_list_free -= 1;
+ }
+
+ /* Leave a 0 at the end. */
+ assert (0 < conflict_list_free);
+ conflict_list[conflict_list_cnt] = 0;
+ conflict_list_cnt += 1;
+ conflict_list_free -= 1;
+ }
+}
+
+
+/*------------------------------------------------------------------.
+| Decide what to do for each type of token if seen as the |
+| look-ahead in specified state. The value returned is used as the |
+| default action (yydefact) for the state. In addition, ACTROW is |
+| filled with what to do for each kind of token, index by symbol |
+| number, with zero meaning do the default action. The value |
+| ACTION_NUMBER_MINIMUM, a very negative number, means this |
+| situation is an error. The parser recognizes this value |
+| specially. |
+| |
+| This is where conflicts are resolved. The loop over look-ahead |
+| rules considered lower-numbered rules last, and the last rule |
+| considered that likes a token gets to handle it. |
+| |
+| For GLR parsers, also sets CONFLROW[SYM] to an index into |
+| CONFLICT_LIST iff there is an unresolved conflict (s/r or r/r) |
+| with symbol SYM. The default reduction is not used for a symbol |
+| that has any such conflicts. |
+`------------------------------------------------------------------*/
+
+static rule *
+action_row (state *s)
+{
+ int i;
+ rule *default_rule = NULL;
+ reductions *reds = s->reductions;
+ transitions *trans = s->transitions;
+ errs *errp = s->errs;
+ /* Set to nonzero to inhibit having any default reduction. */
+ bool nodefault = false;
+ bool conflicted = false;
+
+ for (i = 0; i < ntokens; i++)
+ actrow[i] = conflrow[i] = 0;
+
+ if (reds->look_ahead_tokens)
+ {
+ int j;
+ bitset_iterator biter;
+ /* loop over all the rules available here which require
+ look-ahead (in reverse order to give precedence to the first
+ rule) */
+ for (i = reds->num - 1; i >= 0; --i)
+ /* and find each token which the rule finds acceptable
+ to come next */
+ BITSET_FOR_EACH (biter, reds->look_ahead_tokens[i], j, 0)
+ {
+ /* and record this rule as the rule to use if that
+ token follows. */
+ if (actrow[j] != 0)
+ {
+ conflicted = true;
+ conflrow[j] = 1;
+ }
+ actrow[j] = rule_number_as_item_number (reds->rules[i]->number);
+ }
+ }
+
+ /* Now see which tokens are allowed for shifts in this state. For
+ them, record the shift as the thing to do. So shift is preferred
+ to reduce. */
+ FOR_EACH_SHIFT (trans, i)
+ {
+ symbol_number sym = TRANSITION_SYMBOL (trans, i);
+ state *shift_state = trans->states[i];
+
+ if (actrow[sym] != 0)
+ {
+ conflicted = true;
+ conflrow[sym] = 1;
+ }
+ actrow[sym] = state_number_as_int (shift_state->number);
+
+ /* Do not use any default reduction if there is a shift for
+ error */
+ if (sym == errtoken->number)
+ nodefault = true;
+ }
+
+ /* See which tokens are an explicit error in this state (due to
+ %nonassoc). For them, record ACTION_NUMBER_MINIMUM as the
+ action. */
+ for (i = 0; i < errp->num; i++)
+ {
+ symbol *sym = errp->symbols[i];
+ actrow[sym->number] = ACTION_NUMBER_MINIMUM;
+ }
+
+ /* Now find the most common reduction and make it the default action
+ for this state. */
+
+ if (reds->num >= 1 && !nodefault)
+ {
+ if (s->consistent)
+ default_rule = reds->rules[0];
+ else
+ {
+ int max = 0;
+ for (i = 0; i < reds->num; i++)
+ {
+ int count = 0;
+ rule *r = reds->rules[i];
+ symbol_number j;
+
+ for (j = 0; j < ntokens; j++)
+ if (actrow[j] == rule_number_as_item_number (r->number))
+ count++;
+
+ if (count > max)
+ {
+ max = count;
+ default_rule = r;
+ }
+ }
+
+ /* GLR parsers need space for conflict lists, so we can't
+ default conflicted entries. For non-conflicted entries
+ or as long as we are not building a GLR parser,
+ actions that match the default are replaced with zero,
+ which means "use the default". */
+
+ if (max > 0)
+ {
+ int j;
+ for (j = 0; j < ntokens; j++)
+ if (actrow[j] == rule_number_as_item_number (default_rule->number)
+ && ! (nondeterministic_parser && conflrow[j]))
+ actrow[j] = 0;
+ }
+ }
+ }
+
+ /* If have no default rule, the default is an error.
+ So replace any action which says "error" with "use default". */
+
+ if (!default_rule)
+ for (i = 0; i < ntokens; i++)
+ if (actrow[i] == ACTION_NUMBER_MINIMUM)
+ actrow[i] = 0;
+
+ if (conflicted)
+ conflict_row (s);
+
+ return default_rule;
+}
+
+
+/*----------------------------------------.
+| Set FROMS, TOS, TALLY and WIDTH for S. |
+`----------------------------------------*/
+
+static void
+save_row (state_number s)
+{
+ symbol_number i;
+ int count;
+ base_number *sp;
+ base_number *sp1;
+ base_number *sp2;
+ unsigned int *sp3;
+
+ /* Number of non default actions in S. */
+ count = 0;
+ for (i = 0; i < ntokens; i++)
+ if (actrow[i] != 0)
+ count++;
+
+ if (count == 0)
+ return;
+
+ /* Allocate non defaulted actions. */
+ froms[s] = sp = sp1 = xnmalloc (count, sizeof *sp1);
+ tos[s] = sp2 = xnmalloc (count, sizeof *sp2);
+ conflict_tos[s] = sp3 =
+ nondeterministic_parser ? xnmalloc (count, sizeof *sp3) : NULL;
+
+ /* Store non defaulted actions. */
+ for (i = 0; i < ntokens; i++)
+ if (actrow[i] != 0)
+ {
+ *sp1++ = i;
+ *sp2++ = actrow[i];
+ if (nondeterministic_parser)
+ *sp3++ = conflrow[i];
+ }
+
+ tally[s] = count;
+ width[s] = sp1[-1] - sp[0] + 1;
+}
+
+
+/*------------------------------------------------------------------.
+| Figure out the actions for the specified state, indexed by |
+| look-ahead token type. |
+| |
+| The YYDEFACT table is output now. The detailed info is saved for |
+| putting into YYTABLE later. |
+`------------------------------------------------------------------*/
+
+static void
+token_actions (void)
+{
+ state_number i;
+ symbol_number j;
+ rule_number r;
+
+ int nconflict = nondeterministic_parser ? conflicts_total_count () : 0;
+
+ yydefact = xnmalloc (nstates, sizeof *yydefact);
+
+ actrow = xnmalloc (ntokens, sizeof *actrow);
+ conflrow = xnmalloc (ntokens, sizeof *conflrow);
+
+ conflict_list = xnmalloc (1 + 2 * nconflict, sizeof *conflict_list);
+ conflict_list_free = 2 * nconflict;
+ conflict_list_cnt = 1;
+
+ /* Find the rules which are reduced. */
+ if (!nondeterministic_parser)
+ for (r = 0; r < nrules; ++r)
+ rules[r].useful = false;
+
+ for (i = 0; i < nstates; ++i)
+ {
+ rule *default_rule = action_row (states[i]);
+ yydefact[i] = default_rule ? default_rule->number + 1 : 0;
+ save_row (i);
+
+ /* Now that the parser was computed, we can find which rules are
+ really reduced, and which are not because of SR or RR
+ conflicts. */
+ if (!nondeterministic_parser)
+ {
+ for (j = 0; j < ntokens; ++j)
+ if (actrow[j] < 0 && actrow[j] != ACTION_NUMBER_MINIMUM)
+ rules[item_number_as_rule_number (actrow[j])].useful = true;
+ if (yydefact[i])
+ rules[yydefact[i] - 1].useful = true;
+ }
+ }
+
+ free (actrow);
+ free (conflrow);
+}
+
+
+/*------------------------------------------------------------------.
+| Compute FROMS[VECTOR], TOS[VECTOR], TALLY[VECTOR], WIDTH[VECTOR], |
+| i.e., the information related to non defaulted GOTO on the nterm |
+| SYM. |
+| |
+| DEFAULT_STATE is the principal destination on SYM, i.e., the |
+| default GOTO destination on SYM. |
+`------------------------------------------------------------------*/
+
+static void
+save_column (symbol_number sym, state_number default_state)
+{
+ goto_number i;
+ base_number *sp;
+ base_number *sp1;
+ base_number *sp2;
+ int count;
+ vector_number symno = symbol_number_to_vector_number (sym);
+
+ goto_number begin = goto_map[sym - ntokens];
+ goto_number end = goto_map[sym - ntokens + 1];
+
+ /* Number of non default GOTO. */
+ count = 0;
+ for (i = begin; i < end; i++)
+ if (to_state[i] != default_state)
+ count++;
+
+ if (count == 0)
+ return;
+
+ /* Allocate room for non defaulted gotos. */
+ froms[symno] = sp = sp1 = xnmalloc (count, sizeof *sp1);
+ tos[symno] = sp2 = xnmalloc (count, sizeof *sp2);
+
+ /* Store the state numbers of the non defaulted gotos. */
+ for (i = begin; i < end; i++)
+ if (to_state[i] != default_state)
+ {
+ *sp1++ = from_state[i];
+ *sp2++ = to_state[i];
+ }
+
+ tally[symno] = count;
+ width[symno] = sp1[-1] - sp[0] + 1;
+}
+
+
+/*-------------------------------------------------------------.
+| Return `the' most common destination GOTO on SYM (a nterm). |
+`-------------------------------------------------------------*/
+
+static state_number
+default_goto (symbol_number sym, size_t state_count[])
+{
+ state_number s;
+ goto_number i;
+ goto_number m = goto_map[sym - ntokens];
+ goto_number n = goto_map[sym - ntokens + 1];
+ state_number default_state = -1;
+ size_t max = 0;
+
+ if (m == n)
+ return -1;
+
+ for (s = 0; s < nstates; s++)
+ state_count[s] = 0;
+
+ for (i = m; i < n; i++)
+ state_count[to_state[i]]++;
+
+ for (s = 0; s < nstates; s++)
+ if (state_count[s] > max)
+ {
+ max = state_count[s];
+ default_state = s;
+ }
+
+ return default_state;
+}
+
+
+/*-------------------------------------------------------------------.
+| Figure out what to do after reducing with each rule, depending on |
+| the saved state from before the beginning of parsing the data that |
+| matched this rule. |
+| |
+| The YYDEFGOTO table is output now. The detailed info is saved for |
+| putting into YYTABLE later. |
+`-------------------------------------------------------------------*/
+
+static void
+goto_actions (void)
+{
+ symbol_number i;
+ size_t *state_count = xnmalloc (nstates, sizeof *state_count);
+ yydefgoto = xnmalloc (nvars, sizeof *yydefgoto);
+
+ /* For a given nterm I, STATE_COUNT[S] is the number of times there
+ is a GOTO to S on I. */
+ for (i = ntokens; i < nsyms; ++i)
+ {
+ state_number default_state = default_goto (i, state_count);
+ save_column (i, default_state);
+ yydefgoto[i - ntokens] = default_state;
+ }
+ free (state_count);
+}
+
+
+/*------------------------------------------------------------------.
+| Compute ORDER, a reordering of vectors, in order to decide how to |
+| pack the actions and gotos information into yytable. |
+`------------------------------------------------------------------*/
+
+static void
+sort_actions (void)
+{
+ int i;
+
+ nentries = 0;
+
+ for (i = 0; i < nvectors; i++)
+ if (tally[i] > 0)
+ {
+ int k;
+ int t = tally[i];
+ int w = width[i];
+ int j = nentries - 1;
+
+ while (j >= 0 && (width[order[j]] < w))
+ j--;
+
+ while (j >= 0 && (width[order[j]] == w) && (tally[order[j]] < t))
+ j--;
+
+ for (k = nentries - 1; k > j; k--)
+ order[k + 1] = order[k];
+
+ order[j + 1] = i;
+ nentries++;
+ }
+}
+
+
+/* If VECTOR is a state which actions (reflected by FROMS, TOS, TALLY
+ and WIDTH of VECTOR) are common to a previous state, return this
+ state number.
+
+ In any other case, return -1. */
+
+static state_number
+matching_state (vector_number vector)
+{
+ vector_number i = order[vector];
+ int t;
+ int w;
+ int prev;
+
+ /* If VECTOR is a nterm, return -1. */
+ if (nstates <= i)
+ return -1;
+
+ t = tally[i];
+ w = width[i];
+
+ /* If VECTOR has GLR conflicts, return -1 */
+ if (conflict_tos[i] != NULL)
+ {
+ int j;
+ for (j = 0; j < t; j += 1)
+ if (conflict_tos[i][j] != 0)
+ return -1;
+ }
+
+ for (prev = vector - 1; prev >= 0; prev--)
+ {
+ vector_number j = order[prev];
+ int k;
+ int match = 1;
+
+ /* Given how ORDER was computed, if the WIDTH or TALLY is
+ different, there cannot be a matching state. */
+ if (width[j] != w || tally[j] != t)
+ return -1;
+
+ for (k = 0; match && k < t; k++)
+ if (tos[j][k] != tos[i][k] || froms[j][k] != froms[i][k]
+ || (conflict_tos[j] != NULL && conflict_tos[j][k] != 0))
+ match = 0;
+
+ if (match)
+ return j;
+ }
+
+ return -1;
+}
+
+
+static base_number
+pack_vector (vector_number vector)
+{
+ vector_number i = order[vector];
+ int j;
+ int t = tally[i];
+ int loc = 0;
+ base_number *from = froms[i];
+ base_number *to = tos[i];
+ unsigned int *conflict_to = conflict_tos[i];
+
+ assert (t);
+
+ for (j = lowzero - from[0]; ; j++)
+ {
+ int k;
+ bool ok = true;
+
+ assert (j < table_size);
+
+ for (k = 0; ok && k < t; k++)
+ {
+ loc = j + state_number_as_int (from[k]);
+ if (table_size <= loc)
+ table_grow (loc);
+
+ if (table[loc] != 0)
+ ok = false;
+ }
+
+ for (k = 0; ok && k < vector; k++)
+ if (pos[k] == j)
+ ok = false;
+
+ if (ok)
+ {
+ for (k = 0; k < t; k++)
+ {
+ loc = j + from[k];
+ table[loc] = to[k];
+ if (nondeterministic_parser && conflict_to != NULL)
+ conflict_table[loc] = conflict_to[k];
+ check[loc] = from[k];
+ }
+
+ while (table[lowzero] != 0)
+ lowzero++;
+
+ if (loc > high)
+ high = loc;
+
+ assert (BASE_MINIMUM <= j && j <= BASE_MAXIMUM);
+ return j;
+ }
+ }
+}
+
+
+/*-------------------------------------------------------------.
+| Remap the negative infinite in TAB from NINF to the greatest |
+| possible smallest value. Return it. |
+| |
+| In most case this allows us to use shorts instead of ints in |
+| parsers. |
+`-------------------------------------------------------------*/
+
+static base_number
+table_ninf_remap (base_number tab[], int size, base_number ninf)
+{
+ base_number res = 0;
+ int i;
+
+ for (i = 0; i < size; i++)
+ if (tab[i] < res && tab[i] != ninf)
+ res = tab[i];
+
+ --res;
+
+ for (i = 0; i < size; i++)
+ if (tab[i] == ninf)
+ tab[i] = res;
+
+ return res;
+}
+
+static void
+pack_table (void)
+{
+ int i;
+
+ base = xnmalloc (nvectors, sizeof *base);
+ pos = xnmalloc (nentries, sizeof *pos);
+ table = xcalloc (table_size, sizeof *table);
+ conflict_table = xcalloc (table_size, sizeof *conflict_table);
+ check = xnmalloc (table_size, sizeof *check);
+
+ lowzero = 0;
+ high = 0;
+
+ for (i = 0; i < nvectors; i++)
+ base[i] = BASE_MINIMUM;
+
+ for (i = 0; i < table_size; i++)
+ check[i] = -1;
+
+ for (i = 0; i < nentries; i++)
+ {
+ state_number s = matching_state (i);
+ base_number place;
+
+ if (s < 0)
+ /* A new set of state actions, or a nonterminal. */
+ place = pack_vector (i);
+ else
+ /* Action of I were already coded for S. */
+ place = base[s];
+
+ pos[i] = place;
+ base[order[i]] = place;
+ }
+
+ /* Use the greatest possible negative infinites. */
+ base_ninf = table_ninf_remap (base, nvectors, BASE_MINIMUM);
+ table_ninf = table_ninf_remap (table, high + 1, ACTION_NUMBER_MINIMUM);
+
+ free (pos);
+}
+
+
+
+/*-----------------------------------------------------------------.
+| Compute and output yydefact, yydefgoto, yypact, yypgoto, yytable |
+| and yycheck. |
+`-----------------------------------------------------------------*/
+
+void
+tables_generate (void)
+{
+ int i;
+
+ /* This is a poor way to make sure the sizes are properly
+ correlated. In particular the signedness is not taken into
+ account. But it's not useless. */
+ verify (sizeof nstates <= sizeof nvectors
+ && sizeof nvars <= sizeof nvectors);
+
+ nvectors = state_number_as_int (nstates) + nvars;
+
+ froms = xcalloc (nvectors, sizeof *froms);
+ tos = xcalloc (nvectors, sizeof *tos);
+ conflict_tos = xcalloc (nvectors, sizeof *conflict_tos);
+ tally = xcalloc (nvectors, sizeof *tally);
+ width = xnmalloc (nvectors, sizeof *width);
+
+ token_actions ();
+
+ goto_actions ();
+ free (goto_map);
+ free (from_state);
+ free (to_state);
+
+ order = xcalloc (nvectors, sizeof *order);
+ sort_actions ();
+ pack_table ();
+ free (order);
+
+ free (tally);
+ free (width);
+
+ for (i = 0; i < nvectors; i++)
+ {
+ free (froms[i]);
+ free (tos[i]);
+ free (conflict_tos[i]);
+ }
+
+ free (froms);
+ free (tos);
+ free (conflict_tos);
+}
+
+
+/*-------------------------.
+| Free the parser tables. |
+`-------------------------*/
+
+void
+tables_free (void)
+{
+ free (base);
+ free (conflict_table);
+ free (conflict_list);
+ free (table);
+ free (check);
+ free (yydefgoto);
+ free (yydefact);
+}
diff --git a/src/tables.h b/src/tables.h
new file mode 100644
index 0000000..911917f
--- /dev/null
+++ b/src/tables.h
@@ -0,0 +1,119 @@
+/* Prepare the LALR and GLR parser tables.
+ Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#ifndef TABLES_H_
+# define TABLES_H_
+
+# include "state.h"
+
+/* The parser tables consist of these tables.
+
+ YYTRANSLATE = vector mapping yylex's token numbers into bison's
+ token numbers.
+
+ YYTNAME = vector of string-names indexed by bison token number.
+
+ YYTOKNUM = vector of yylex token numbers corresponding to entries
+ in YYTNAME.
+
+ YYRLINE = vector of line-numbers of all rules. For yydebug
+ printouts.
+
+ YYRHS = vector of items of all rules. This is exactly what RITEMS
+ contains. For yydebug and for semantic parser.
+
+ YYPRHS[R] = index in YYRHS of first item for rule R.
+
+ YYR1[R] = symbol number of symbol that rule R derives.
+
+ YYR2[R] = number of symbols composing right hand side of rule R.
+
+ YYSTOS[S] = the symbol number of the symbol that leads to state S.
+
+ YYDEFACT[S] = default rule to reduce with in state s, when YYTABLE
+ doesn't specify something else to do. Zero means the default is an
+ error.
+
+ YYDEFGOTO[I] = default state to go to after a reduction of a rule
+ that generates variable NTOKENS + I, except when YYTABLE specifies
+ something else to do.
+
+ YYPACT[S] = index in YYTABLE of the portion describing state S.
+ The look-ahead token's type is used to index that portion to find
+ out what to do.
+
+ If the value in YYTABLE is positive, we shift the token and go to
+ that state.
+
+ If the value is negative, it is minus a rule number to reduce by.
+
+ If the value is zero, the default action from YYDEFACT[S] is used.
+
+ YYPGOTO[I] = the index in YYTABLE of the portion describing what to
+ do after reducing a rule that derives variable I + NTOKENS. This
+ portion is indexed by the parser state number, S, as of before the
+ text for this nonterminal was read. The value from YYTABLE is the
+ state to go to if the corresponding value in YYCHECK is S.
+
+ YYTABLE = a vector filled with portions for different uses, found
+ via YYPACT and YYPGOTO.
+
+ YYCHECK = a vector indexed in parallel with YYTABLE. It indicates,
+ in a roundabout way, the bounds of the portion you are trying to
+ examine.
+
+ Suppose that the portion of YYTABLE starts at index P and the index
+ to be examined within the portion is I. Then if YYCHECK[P+I] != I,
+ I is outside the bounds of what is actually allocated, and the
+ default (from YYDEFACT or YYDEFGOTO) should be used. Otherwise,
+ YYTABLE[P+I] should be used.
+
+ YYFINAL = the state number of the termination state.
+
+ YYLAST ( = high) the number of the last element of YYTABLE, i.e.,
+ sizeof (YYTABLE) - 1. */
+
+extern int nvectors;
+
+typedef int base_number;
+extern base_number *base;
+/* A distinguished value of BASE, negative infinite. During the
+ computation equals to BASE_MINIMUM, later mapped to BASE_NINF to
+ keep parser tables small. */
+extern base_number base_ninf;
+
+extern unsigned int *conflict_table;
+extern unsigned int *conflict_list;
+extern int conflict_list_cnt;
+
+extern base_number *table;
+extern base_number *check;
+/* The value used in TABLE to denote explicit syntax errors
+ (%nonassoc), a negative infinite. */
+extern base_number table_ninf;
+
+extern state_number *yydefgoto;
+extern rule_number *yydefact;
+extern int high;
+
+void tables_generate (void);
+void tables_free (void);
+
+#endif /* !TABLES_H_ */
diff --git a/src/uniqstr.c b/src/uniqstr.c
new file mode 100644
index 0000000..8804a80
--- /dev/null
+++ b/src/uniqstr.c
@@ -0,0 +1,153 @@
+/* Keep a unique copy of strings.
+
+ Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <error.h>
+#include <hash.h>
+#include <quotearg.h>
+
+#include "uniqstr.h"
+
+/*-----------------------.
+| A uniqstr hash table. |
+`-----------------------*/
+
+/* Initial capacity of uniqstr hash table. */
+#define HT_INITIAL_CAPACITY 257
+
+static struct hash_table *uniqstrs_table = NULL;
+
+/*-------------------------------------.
+| Create the uniqstr for S if needed. |
+`-------------------------------------*/
+
+uniqstr
+uniqstr_new (char const *str)
+{
+ uniqstr res = hash_lookup (uniqstrs_table, str);
+ if (!res)
+ {
+ /* First insertion in the hash. */
+ res = xstrdup (str);
+ hash_insert (uniqstrs_table, res);
+ }
+ return res;
+}
+
+
+/*------------------------------.
+| Abort if S is not a uniqstr. |
+`------------------------------*/
+
+void
+uniqstr_assert (char const *str)
+{
+ if (!hash_lookup (uniqstrs_table, str))
+ {
+ error (0, 0,
+ "not a uniqstr: %s", quotearg (str));
+ abort ();
+ }
+}
+
+
+/*--------------------.
+| Print the uniqstr. |
+`--------------------*/
+
+static inline bool
+uniqstr_print (uniqstr ustr)
+{
+ fprintf (stderr, "%s\n", ustr);
+ return true;
+}
+
+static bool
+uniqstr_print_processor (void *ustr, void *null ATTRIBUTE_UNUSED)
+{
+ return uniqstr_print (ustr);
+}
+
+
+/*-----------------------.
+| A uniqstr hash table. |
+`-----------------------*/
+
+static bool
+hash_compare_uniqstr (void const *m1, void const *m2)
+{
+ return strcmp (m1, m2) == 0;
+}
+
+static size_t
+hash_uniqstr (void const *m, size_t tablesize)
+{
+ return hash_string (m, tablesize);
+}
+
+/*----------------------------.
+| Create the uniqstrs table. |
+`----------------------------*/
+
+void
+uniqstrs_new (void)
+{
+ uniqstrs_table = hash_initialize (HT_INITIAL_CAPACITY,
+ NULL,
+ hash_uniqstr,
+ hash_compare_uniqstr,
+ free);
+}
+
+
+/*-------------------------------------.
+| Perform a task on all the uniqstrs. |
+`-------------------------------------*/
+
+static void
+uniqstrs_do (Hash_processor processor, void *processor_data)
+{
+ hash_do_for_each (uniqstrs_table, processor, processor_data);
+}
+
+
+/*-----------------.
+| Print them all. |
+`-----------------*/
+
+void
+uniqstrs_print (void)
+{
+ uniqstrs_do (uniqstr_print_processor, NULL);
+}
+
+
+/*--------------------.
+| Free the uniqstrs. |
+`--------------------*/
+
+void
+uniqstrs_free (void)
+{
+ hash_free (uniqstrs_table);
+}
diff --git a/src/uniqstr.h b/src/uniqstr.h
new file mode 100644
index 0000000..ab482be
--- /dev/null
+++ b/src/uniqstr.h
@@ -0,0 +1,53 @@
+/* Keeping a unique copy of strings.
+
+ Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef UNIQSTR_H_
+# define UNIQSTR_H_
+
+/*-----------------------------------------.
+| Pointers to unique copies of C strings. |
+`-----------------------------------------*/
+
+typedef char const *uniqstr;
+
+/* Return the uniqstr for STR. */
+uniqstr uniqstr_new (char const *str);
+
+/* Two uniqstr values have the same value iff they are the same. */
+#define UNIQSTR_EQ(USTR1, USTR2) ((USTR1) == (USTR2))
+
+/*--------------------------------------.
+| Initializing, destroying, debugging. |
+`--------------------------------------*/
+
+/* Create the string table. */
+void uniqstrs_new (void);
+
+/* Die if STR is not a uniqstr. */
+void uniqstr_assert (char const *str);
+
+/* Free all the memory allocated for symbols. */
+void uniqstrs_free (void);
+
+/* Report them all. */
+void uniqstrs_print (void);
+
+#endif /* ! defined UNIQSTR_H_ */
diff --git a/src/vcg.c b/src/vcg.c
new file mode 100644
index 0000000..25fbb64
--- /dev/null
+++ b/src/vcg.c
@@ -0,0 +1,841 @@
+/* VCG description handler for Bison.
+
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include <config.h>
+#include "system.h"
+
+#include <quotearg.h>
+
+#include "vcg.h"
+#include "vcg_defaults.h"
+
+/* Return an unambiguous printable representated, for NAME, suitable
+ for C strings. Use slot 2 since the user may use slots 0 and 1.
+ */
+
+static char const *
+quote (char const *name)
+{
+ return quotearg_n_style (2, c_quoting_style, name);
+}
+
+
+/* Initialize a graph with the default values. */
+void
+new_graph (graph *g)
+{
+ g->title = G_TITLE;
+ g->label = G_LABEL;
+
+ g->infos[0] = G_INFOS1;
+ g->infos[1] = G_INFOS2;
+ g->infos[2] = G_INFOS3;
+
+ g->color = G_COLOR;
+ g->textcolor = G_TEXTCOLOR;
+ g->bordercolor = G_BORDERCOLOR;
+
+ g->width = G_WIDTH;
+ g->height = G_HEIGHT;
+ g->borderwidth = G_BORDERWIDTH;
+ g->x = G_X;
+ g->y = G_Y;
+ g->folding = G_FOLDING;
+ g->shrink = G_SHRINK;
+ g->stretch = G_STRETCH;
+
+ g->textmode = G_TEXTMODE;
+ g->shape = G_SHAPE;
+
+ g->vertical_order = G_VERTICAL_ORDER;
+ g->horizontal_order = G_HORIZONTAL_ORDER;
+
+ g->xmax = G_XMAX; /* Not output. */
+ g->ymax = G_YMAX; /* Not output. */
+
+ g->xbase = G_XBASE;
+ g->ybase = G_YBASE;
+
+ g->xspace = G_XSPACE;
+ g->yspace = G_YSPACE;
+ g->xlspace = G_XLSPACE; /* Not output. */
+
+ g->xraster = G_XRASTER;
+ g->yraster = G_YRASTER;
+ g->xlraster = G_XLRASTER;
+
+ g->hidden = G_HIDDEN; /* No default value. */
+
+ g->classname = G_CLASSNAME; /* No class name association. */
+
+ g->layout_downfactor = G_LAYOUT_DOWNFACTOR;
+ g->layout_upfactor = G_LAYOUT_UPFACTOR;
+ g->layout_nearfactor = G_LAYOUT_NEARFACTOR;
+ g->layout_splinefactor = G_LAYOUT_SPLINEFACTOR;
+
+ g->late_edge_labels = G_LATE_EDGE_LABELS;
+ g->display_edge_labels = G_DISPLAY_EDGE_LABELS;
+ g->dirty_edge_labels = G_DIRTY_EDGE_LABELS;
+ g->finetuning = G_FINETUNING;
+ g->ignore_singles = G_IGNORE_SINGLES;
+ g->priority_phase = G_PRIORITY_PHASE;
+ g->manhattan_edges = G_MANHATTAN_EDGES;
+ g->smanhattan_edges = G_SMANHATTAN_EDGES;
+ g->near_edges = G_NEAR_EDGES;
+
+ g->orientation = G_ORIENTATION;
+ g->node_alignment = G_NODE_ALIGNMENT;
+ g->port_sharing = G_PORT_SHARING;
+ g->arrow_mode = G_ARROW_MODE;
+ g->treefactor = G_TREEFACTOR;
+ g->spreadlevel = G_SPREADLEVEL;
+ g->crossing_weight = G_CROSSING_WEIGHT;
+ g->crossing_phase2 = G_CROSSING_PHASE2;
+ g->crossing_optimization = G_CROSSING_OPTIMIZATION;
+ g->view = G_VIEW;
+
+ g->edges = G_EDGES;
+ g->nodes = G_NODES;
+ g->splines = G_SPLINES;
+
+ g->bmax = G_BMAX;
+ g->cmin = G_CMIN;
+ g->cmax = G_CMAX;
+ g->pmin = G_PMIN;
+ g->pmax = G_PMAX;
+ g->rmin = G_RMIN;
+ g->rmax = G_RMAX;
+ g->smax = G_SMAX;
+
+ g->node_list = G_NODE_LIST;
+ g->edge_list = G_EDGE_LIST;
+
+ new_edge (&g->edge);
+ new_node (&g->node);
+}
+
+/* Initialize a node with the default values. */
+void
+new_node (node *n)
+{
+ n->title = N_TITLE;
+ n->label = N_LABEL;
+
+ n->locx = N_LOCX; /* Default unspcified. */
+ n->locy = N_LOCY; /* Default unspcified. */
+
+ n->vertical_order = N_VERTICAL_ORDER; /* Default unspcified. */
+ n->horizontal_order = N_HORIZONTAL_ORDER; /* Default unspcified. */
+
+ n->width = N_WIDTH; /* We assume that we can't define it now. */
+ n->height = N_HEIGHT; /* Also. */
+
+ n->shrink = N_SHRINK;
+ n->stretch = N_STRETCH;
+
+ n->folding = N_FOLDING; /* No explicit default value. */
+
+ n->shape = N_SHAPE;
+ n->textmode = N_TEXTMODE;
+ n->borderwidth = N_BORDERWIDTH;
+
+ n->color = N_COLOR;
+ n->textcolor = N_TEXTCOLOR;
+ n->bordercolor = N_BORDERCOLOR;
+
+ n->infos[0] = N_INFOS1;
+ n->infos[1] = N_INFOS2;
+ n->infos[2] = N_INFOS3;
+
+ n->next = N_NEXT;
+}
+
+/* Initialize an edge with the default values. */
+void
+new_edge (edge *e)
+{
+ e->type = E_EDGE_TYPE;
+
+ e->sourcename = E_SOURCENAME;
+ e->targetname = E_TARGETNAME;
+ e->label = E_LABEL;
+
+ e->linestyle = E_LINESTYLE;
+ e->thickness = E_THICKNESS;
+
+ e->class = E_CLASS;
+
+ e->color = E_COLOR;
+ e->textcolor = E_TEXTCOLOR;
+ e->arrowcolor = E_ARROWCOLOR;
+ e->backarrowcolor = E_BACKARROWCOLOR;
+
+ e->arrowsize = E_ARROWSIZE;
+ e->backarrowsize = E_BACKARROWSIZE;
+ e->arrowstyle = E_ARROWSTYLE;
+
+ e->backarrowstyle = E_BACKARROWSTYLE;
+
+ e->priority = E_PRIORITY;
+
+ e->anchor = E_ANCHOR;
+
+ e->horizontal_order = E_HORIZONTAL_ORDER;
+
+ e->next = E_NEXT;
+}
+
+/*----------------------------------------------.
+| Get functions. |
+| Return string corresponding to an enum value. |
+`----------------------------------------------*/
+
+static const char *
+get_color_str (enum color color)
+{
+ switch (color)
+ {
+ default: abort ();
+ case white: return "white";
+ case blue: return "blue";
+ case red: return "red";
+ case green: return "green";
+ case yellow: return "yellow";
+ case magenta: return "magenta";
+ case cyan: return "cyan";
+ case darkgrey: return "darkgrey";
+ case darkblue: return "darkblue";
+ case darkred: return "darkred";
+ case darkgreen: return "darkgreen";
+ case darkyellow: return "darkyellow";
+ case darkmagenta: return "darkmagenta";
+ case darkcyan: return "darkcyan";
+ case gold: return "gold";
+ case lightgrey: return "lightgrey";
+ case lightblue: return "lightblue";
+ case lightred: return "lightred";
+ case lightgreen: return "lightgreen";
+ case lightyellow: return "lightyellow";
+ case lightmagenta: return "lightmagenta";
+ case lightcyan: return "lightcyan";
+ case lilac: return "lilac";
+ case turquoise: return "turquoise";
+ case aquamarine: return "aquamarine";
+ case khaki: return "khaki";
+ case purple: return "purple";
+ case yellowgreen: return "yellowgreen";
+ case pink: return "pink";
+ case orange: return "orange";
+ case orchid: return "orchid";
+ case black: return "black";
+ }
+}
+
+static const char *
+get_textmode_str (enum textmode textmode)
+{
+ switch (textmode)
+ {
+ default: abort ();
+ case centered: return "center";
+ case left_justify: return "left_justify";
+ case right_justify: return "right_justify";
+ }
+}
+
+static const char *
+get_shape_str (enum shape shape)
+{
+ switch (shape)
+ {
+ default: abort ();
+ case box: return "box";
+ case rhomb: return "rhomb";
+ case ellipse: return "ellipse";
+ case triangle: return "triangle";
+ }
+}
+
+static const char *
+get_decision_str (enum decision decision)
+{
+ switch (decision)
+ {
+ default: abort ();
+ case no: return "no";
+ case yes: return "yes";
+ }
+}
+
+static const char *
+get_orientation_str (enum orientation orientation)
+{
+ switch (orientation)
+ {
+ default: abort ();
+ case top_to_bottom: return "top_to_bottom";
+ case bottom_to_top: return "bottom_to_top";
+ case left_to_right: return "left_to_right";
+ case right_to_left: return "right_to_left";
+ }
+}
+
+static const char *
+get_node_alignment_str (enum alignment alignment)
+{
+ switch (alignment)
+ {
+ default: abort ();
+ case center: return "center";
+ case top: return "top";
+ case bottom: return "bottom";
+ }
+}
+
+static const char *
+get_arrow_mode_str (enum arrow_mode arrow_mode)
+{
+ switch (arrow_mode)
+ {
+ default: abort ();
+ case fixed: return "fixed";
+ case free_a: return "free";
+ }
+}
+
+static const char *
+get_crossing_type_str (enum crossing_type crossing_type)
+{
+ switch (crossing_type)
+ {
+ default: abort ();
+ case bary: return "bary";
+ case median: return "median";
+ case barymedian: return "barymedian";
+ case medianbary: return "medianbary";
+ }
+}
+
+static const char *
+get_view_str (enum view view)
+{
+ /* There is no way with vcg 1.30 to specify a normal view explicitly,
+ so it is an error here if view == normal_view. */
+ switch (view)
+ {
+ default: abort ();
+ case cfish: return "cfish";
+ case pfish: return "pfish";
+ case fcfish: return "fcfish";
+ case fpfish: return "fpfish";
+ }
+}
+
+static const char *
+get_linestyle_str (enum linestyle linestyle)
+{
+ switch (linestyle)
+ {
+ default: abort ();
+ case continuous: return "continuous";
+ case dashed: return "dashed";
+ case dotted: return "dotted";
+ case invisible: return "invisible";
+ }
+}
+
+static const char *
+get_arrowstyle_str (enum arrowstyle arrowstyle)
+{
+ switch (arrowstyle)
+ {
+ default: abort ();
+ case solid: return "solid";
+ case line: return "line";
+ case none: return "none";
+ }
+}
+
+/*------------------------------.
+| Add functions. |
+| Edge and nodes into a graph. |
+`------------------------------*/
+
+void
+add_node (graph *g, node *n)
+{
+ n->next = g->node_list;
+ g->node_list = n;
+}
+
+void
+add_edge (graph *g, edge *e)
+{
+ e->next = g->edge_list;
+ g->edge_list = e;
+}
+
+void
+add_classname (graph *g, int val, const char *name)
+{
+ struct classname *classname = xmalloc (sizeof *classname);
+ classname->no = val;
+ classname->name = name;
+ classname->next = g->classname;
+ g->classname = classname;
+}
+
+void
+add_infoname (graph *g, int integer, const char *str)
+{
+ struct infoname *infoname = xmalloc (sizeof *infoname);
+ infoname->integer = integer;
+ infoname->chars = str;
+ infoname->next = g->infoname;
+ g->infoname = infoname;
+}
+
+/* Build a colorentry struct and add it to the list. */
+void
+add_colorentry (graph *g, int color_idx, int red_cp,
+ int green_cp, int blue_cp)
+{
+ struct colorentry *ce = xmalloc (sizeof *ce);
+ ce->color_index = color_idx;
+ ce->red_cp = red_cp;
+ ce->green_cp = green_cp;
+ ce->blue_cp = blue_cp;
+ ce->next = g->colorentry;
+ g->colorentry = ce;
+}
+
+/*-------------------------------------.
+| Open and close functions (formatted) |
+`-------------------------------------*/
+
+void
+open_edge (edge *e, FILE *fout)
+{
+ switch (e->type)
+ {
+ case normal_edge:
+ fputs ("\tedge: {\n", fout);
+ break;
+ case back_edge:
+ fputs ("\tbackedge: {\n", fout);
+ break;
+ case near_edge:
+ fputs ("\tnearedge: {\n", fout);
+ break;
+ case bent_near_edge:
+ fputs ("\tbentnearedge: {\n", fout);
+ break;
+ default:
+ fputs ("\tedge: {\n", fout);
+ }
+}
+
+void
+close_edge (FILE *fout)
+{
+ fputs ("\t}\n", fout);
+}
+
+void
+open_node (FILE *fout)
+{
+ fputs ("\tnode: {\n", fout);
+}
+
+void
+close_node (FILE *fout)
+{
+ fputs ("\t}\n", fout);
+}
+
+void
+open_graph (FILE *fout)
+{
+ fputs ("graph: {\n", fout);
+}
+
+void
+close_graph (graph *g, FILE *fout)
+{
+ fputc ('\n', fout);
+
+ /* FIXME: Unallocate nodes and edges if required. */
+ {
+ node *n;
+
+ for (n = g->node_list; n; n = n->next)
+ {
+ open_node (fout);
+ output_node (n, fout);
+ close_node (fout);
+ }
+ }
+
+ fputc ('\n', fout);
+
+ {
+ edge *e;
+
+ for (e = g->edge_list; e; e = e->next)
+ {
+ open_edge (e, fout);
+ output_edge (e, fout);
+ close_edge (fout);
+ }
+ }
+
+ fputs ("}\n", fout);
+}
+
+/*-------------------------------------------.
+| Output functions (formatted) in file FOUT |
+`-------------------------------------------*/
+
+void
+output_node (node *n, FILE *fout)
+{
+ if (n->title != N_TITLE)
+ fprintf (fout, "\t\ttitle:\t%s\n", quote (n->title));
+ if (n->label != N_LABEL)
+ fprintf (fout, "\t\tlabel:\t%s\n", quote (n->label));
+
+ if ((n->locx != N_LOCX) && (n->locy != N_LOCY))
+ fprintf (fout, "\t\tloc { x: %d y: %d }\t\n", n->locx, n->locy);
+
+ if (n->vertical_order != N_VERTICAL_ORDER)
+ fprintf (fout, "\t\tvertical_order:\t%d\n", n->vertical_order);
+ if (n->horizontal_order != N_HORIZONTAL_ORDER)
+ fprintf (fout, "\t\thorizontal_order:\t%d\n", n->horizontal_order);
+
+ if (n->width != N_WIDTH)
+ fprintf (fout, "\t\twidth:\t%d\n", n->width);
+ if (n->height != N_HEIGHT)
+ fprintf (fout, "\t\theight:\t%d\n", n->height);
+
+ if (n->shrink != N_SHRINK)
+ fprintf (fout, "\t\tshrink:\t%d\n", n->shrink);
+ if (n->stretch != N_STRETCH)
+ fprintf (fout, "\t\tstretch:\t%d\n", n->stretch);
+
+ if (n->folding != N_FOLDING)
+ fprintf (fout, "\t\tfolding:\t%d\n", n->folding);
+
+ if (n->textmode != N_TEXTMODE)
+ fprintf (fout, "\t\ttextmode:\t%s\n",
+ get_textmode_str (n->textmode));
+
+ if (n->shape != N_SHAPE)
+ fprintf (fout, "\t\tshape:\t%s\n", get_shape_str (n->shape));
+
+ if (n->borderwidth != N_BORDERWIDTH)
+ fprintf (fout, "\t\tborderwidth:\t%d\n", n->borderwidth);
+
+ if (n->color != N_COLOR)
+ fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (n->color));
+ if (n->textcolor != N_TEXTCOLOR)
+ fprintf (fout, "\t\ttextcolor:\t%s\n",
+ get_color_str (n->textcolor));
+ if (n->bordercolor != N_BORDERCOLOR)
+ fprintf (fout, "\t\tbordercolor:\t%s\n",
+ get_color_str (n->bordercolor));
+
+ {
+ int i;
+ for (i = 0; i < 3; ++i)
+ if (n->infos[i])
+ fprintf (fout, "\t\tinfo%d:\t%s\n",
+ i, quote (n->infos[i]));
+ }
+}
+
+void
+output_edge (edge *e, FILE *fout)
+{
+ /* FIXME: SOURCENAME and TARGETNAME are mandatory
+ so it has to be fatal not to give these informations. */
+ if (e->sourcename != E_SOURCENAME)
+ fprintf (fout, "\t\tsourcename:\t%s\n", quote (e->sourcename));
+ if (e->targetname != E_TARGETNAME)
+ fprintf (fout, "\t\ttargetname:\t%s\n", quote (e->targetname));
+
+ if (e->label != E_LABEL)
+ fprintf (fout, "\t\tlabel:\t%s\n", quote (e->label));
+
+ if (e->linestyle != E_LINESTYLE)
+ fprintf (fout, "\t\tlinestyle:\t%s\n", get_linestyle_str (e->linestyle));
+
+ if (e->thickness != E_THICKNESS)
+ fprintf (fout, "\t\tthickness:\t%d\n", e->thickness);
+ if (e->class != E_CLASS)
+ fprintf (fout, "\t\tclass:\t%d\n", e->class);
+
+ if (e->color != E_COLOR)
+ fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (e->color));
+ if (e->color != E_TEXTCOLOR)
+ fprintf (fout, "\t\ttextcolor:\t%s\n",
+ get_color_str (e->textcolor));
+ if (e->arrowcolor != E_ARROWCOLOR)
+ fprintf (fout, "\t\tarrowcolor:\t%s\n",
+ get_color_str (e->arrowcolor));
+ if (e->backarrowcolor != E_BACKARROWCOLOR)
+ fprintf (fout, "\t\tbackarrowcolor:\t%s\n",
+ get_color_str (e->backarrowcolor));
+
+ if (e->arrowsize != E_ARROWSIZE)
+ fprintf (fout, "\t\tarrowsize:\t%d\n", e->arrowsize);
+ if (e->backarrowsize != E_BACKARROWSIZE)
+ fprintf (fout, "\t\tbackarrowsize:\t%d\n", e->backarrowsize);
+
+ if (e->arrowstyle != E_ARROWSTYLE)
+ fprintf (fout, "\t\tarrowstyle:\t%s\n",
+ get_arrowstyle_str (e->arrowstyle));
+ if (e->backarrowstyle != E_BACKARROWSTYLE)
+ fprintf (fout, "\t\tbackarrowstyle:\t%s\n",
+ get_arrowstyle_str (e->backarrowstyle));
+
+ if (e->priority != E_PRIORITY)
+ fprintf (fout, "\t\tpriority:\t%d\n", e->priority);
+ if (e->anchor != E_ANCHOR)
+ fprintf (fout, "\t\tanchor:\t%d\n", e->anchor);
+ if (e->horizontal_order != E_HORIZONTAL_ORDER)
+ fprintf (fout, "\t\thorizontal_order:\t%d\n", e->horizontal_order);
+}
+
+void
+output_graph (graph *g, FILE *fout)
+{
+ if (g->title)
+ fprintf (fout, "\ttitle:\t%s\n", quote (g->title));
+ if (g->label)
+ fprintf (fout, "\tlabel:\t%s\n", quote (g->label));
+
+ {
+ int i;
+ for (i = 0; i < 3; ++i)
+ if (g->infos[i])
+ fprintf (fout, "\tinfo%d:\t%s\n", i, quote (g->infos[i]));
+ }
+
+ if (g->color != G_COLOR)
+ fprintf (fout, "\tcolor:\t%s\n", get_color_str (g->color));
+ if (g->textcolor != G_TEXTCOLOR)
+ fprintf (fout, "\ttextcolor:\t%s\n", get_color_str (g->textcolor));
+ if (g->bordercolor != G_BORDERCOLOR)
+ fprintf (fout, "\tbordercolor:\t%s\n",
+ get_color_str (g->bordercolor));
+
+ if (g->width != G_WIDTH)
+ fprintf (fout, "\twidth:\t%d\n", g->width);
+ if (g->height != G_HEIGHT)
+ fprintf (fout, "\theight:\t%d\n", g->height);
+ if (g->borderwidth != G_BORDERWIDTH)
+ fprintf (fout, "\tborderwidth:\t%d\n", g->borderwidth);
+
+ if (g->x != G_X)
+ fprintf (fout, "\tx:\t%d\n", g->x);
+ if (g->y != G_Y)
+ fprintf (fout, "\ty:\t%d\n", g->y);
+
+ if (g->folding != G_FOLDING)
+ fprintf (fout, "\tfolding:\t%d\n", g->folding);
+
+ if (g->shrink != G_SHRINK)
+ fprintf (fout, "\tshrink:\t%d\n", g->shrink);
+ if (g->stretch != G_STRETCH)
+ fprintf (fout, "\tstretch:\t%d\n", g->stretch);
+
+ if (g->textmode != G_TEXTMODE)
+ fprintf (fout, "\ttextmode:\t%s\n",
+ get_textmode_str (g->textmode));
+
+ if (g->shape != G_SHAPE)
+ fprintf (fout, "\tshape:\t%s\n", get_shape_str (g->shape));
+
+ if (g->vertical_order != G_VERTICAL_ORDER)
+ fprintf (fout, "\tvertical_order:\t%d\n", g->vertical_order);
+ if (g->horizontal_order != G_HORIZONTAL_ORDER)
+ fprintf (fout, "\thorizontal_order:\t%d\n", g->horizontal_order);
+
+ if (g->xmax != G_XMAX)
+ fprintf (fout, "\txmax:\t%d\n", g->xmax);
+ if (g->ymax != G_YMAX)
+ fprintf (fout, "\tymax:\t%d\n", g->ymax);
+
+ if (g->xbase != G_XBASE)
+ fprintf (fout, "\txbase:\t%d\n", g->xbase);
+ if (g->ybase != G_YBASE)
+ fprintf (fout, "\tybase:\t%d\n", g->ybase);
+
+ if (g->xspace != G_XSPACE)
+ fprintf (fout, "\txspace:\t%d\n", g->xspace);
+ if (g->yspace != G_YSPACE)
+ fprintf (fout, "\tyspace:\t%d\n", g->yspace);
+ if (g->xlspace != G_XLSPACE)
+ fprintf (fout, "\txlspace:\t%d\n", g->xlspace);
+
+ if (g->xraster != G_XRASTER)
+ fprintf (fout, "\txraster:\t%d\n", g->xraster);
+ if (g->yraster != G_YRASTER)
+ fprintf (fout, "\tyraster:\t%d\n", g->yraster);
+ if (g->xlraster != G_XLRASTER)
+ fprintf (fout, "\txlraster:\t%d\n", g->xlraster);
+
+ if (g->hidden != G_HIDDEN)
+ fprintf (fout, "\thidden:\t%d\n", g->hidden);
+
+ /* FIXME: Unallocate struct list if required.
+ Maybe with a little function. */
+ if (g->classname != G_CLASSNAME)
+ {
+ struct classname *ite;
+
+ for (ite = g->classname; ite; ite = ite->next)
+ fprintf (fout, "\tclassname %d :\t%s\n", ite->no, ite->name);
+ }
+
+ if (g->infoname != G_INFONAME)
+ {
+ struct infoname *ite;
+
+ for (ite = g->infoname; ite; ite = ite->next)
+ fprintf (fout, "\tinfoname %d :\t%s\n", ite->integer, ite->chars);
+ }
+
+ if (g->colorentry != G_COLORENTRY)
+ {
+ struct colorentry *ite;
+
+ for (ite = g->colorentry; ite; ite = ite->next)
+ {
+ fprintf (fout, "\tcolorentry %d :\t%d %d %d\n",
+ ite->color_index,
+ ite->red_cp,
+ ite->green_cp,
+ ite->blue_cp);
+ }
+ }
+
+ if (g->layout_downfactor != G_LAYOUT_DOWNFACTOR)
+ fprintf (fout, "\tlayout_downfactor:\t%d\n", g->layout_downfactor);
+ if (g->layout_upfactor != G_LAYOUT_UPFACTOR)
+ fprintf (fout, "\tlayout_upfactor:\t%d\n", g->layout_upfactor);
+ if (g->layout_nearfactor != G_LAYOUT_NEARFACTOR)
+ fprintf (fout, "\tlayout_nearfactor:\t%d\n", g->layout_nearfactor);
+ if (g->layout_splinefactor != G_LAYOUT_SPLINEFACTOR)
+ fprintf (fout, "\tlayout_splinefactor:\t%d\n",
+ g->layout_splinefactor);
+
+ if (g->late_edge_labels != G_LATE_EDGE_LABELS)
+ fprintf (fout, "\tlate_edge_labels:\t%s\n",
+ get_decision_str (g->late_edge_labels));
+ if (g->display_edge_labels != G_DISPLAY_EDGE_LABELS)
+ fprintf (fout, "\tdisplay_edge_labels:\t%s\n",
+ get_decision_str (g->display_edge_labels));
+ if (g->dirty_edge_labels != G_DIRTY_EDGE_LABELS)
+ fprintf (fout, "\tdirty_edge_labels:\t%s\n",
+ get_decision_str (g->dirty_edge_labels));
+ if (g->finetuning != G_FINETUNING)
+ fprintf (fout, "\tfinetuning:\t%s\n",
+ get_decision_str (g->finetuning));
+ if (g->ignore_singles != G_IGNORE_SINGLES)
+ fprintf (fout, "\tignore_singles:\t%s\n",
+ get_decision_str (g->ignore_singles));
+ if (g->priority_phase != G_PRIORITY_PHASE)
+ fprintf (fout, "\tpriority_phase:\t%s\n",
+ get_decision_str (g->priority_phase));
+ if (g->manhattan_edges != G_MANHATTAN_EDGES)
+ fprintf (fout,
+ "\tmanhattan_edges:\t%s\n",
+ get_decision_str (g->manhattan_edges));
+ if (g->smanhattan_edges != G_SMANHATTAN_EDGES)
+ fprintf (fout,
+ "\tsmanhattan_edges:\t%s\n",
+ get_decision_str (g->smanhattan_edges));
+ if (g->near_edges != G_NEAR_EDGES)
+ fprintf (fout, "\tnear_edges:\t%s\n",
+ get_decision_str (g->near_edges));
+
+ if (g->orientation != G_ORIENTATION)
+ fprintf (fout, "\torientation:\t%s\n",
+ get_orientation_str (g->orientation));
+
+ if (g->node_alignment != G_NODE_ALIGNMENT)
+ fprintf (fout, "\tnode_alignment:\t%s\n",
+ get_node_alignment_str (g->node_alignment));
+
+ if (g->port_sharing != G_PORT_SHARING)
+ fprintf (fout, "\tport_sharing:\t%s\n",
+ get_decision_str (g->port_sharing));
+
+ if (g->arrow_mode != G_ARROW_MODE)
+ fprintf (fout, "\tarrow_mode:\t%s\n",
+ get_arrow_mode_str (g->arrow_mode));
+
+ if (g->treefactor != G_TREEFACTOR)
+ fprintf (fout, "\ttreefactor:\t%f\n", g->treefactor);
+ if (g->spreadlevel != G_SPREADLEVEL)
+ fprintf (fout, "\tspreadlevel:\t%d\n", g->spreadlevel);
+
+ if (g->crossing_weight != G_CROSSING_WEIGHT)
+ fprintf (fout, "\tcrossing_weight:\t%s\n",
+ get_crossing_type_str (g->crossing_weight));
+ if (g->crossing_phase2 != G_CROSSING_PHASE2)
+ fprintf (fout, "\tcrossing_phase2:\t%s\n",
+ get_decision_str (g->crossing_phase2));
+ if (g->crossing_optimization != G_CROSSING_OPTIMIZATION)
+ fprintf (fout, "\tcrossing_optimization:\t%s\n",
+ get_decision_str (g->crossing_optimization));
+
+ if (g->view != normal_view)
+ fprintf (fout, "\tview:\t%s\n", get_view_str (g->view));
+
+ if (g->edges != G_EDGES)
+ fprintf (fout, "\tedges:\t%s\n", get_decision_str (g->edges));
+
+ if (g->nodes != G_NODES)
+ fprintf (fout,"\tnodes:\t%s\n", get_decision_str (g->nodes));
+
+ if (g->splines != G_SPLINES)
+ fprintf (fout, "\tsplines:\t%s\n", get_decision_str (g->splines));
+
+ if (g->bmax != G_BMAX)
+ fprintf (fout, "\tbmax:\t%d\n", g->bmax);
+ if (g->cmin != G_CMIN)
+ fprintf (fout, "\tcmin:\t%d\n", g->cmin);
+ if (g->cmax != G_CMAX)
+ fprintf (fout, "\tcmax:\t%d\n", g->cmax);
+ if (g->pmin != G_PMIN)
+ fprintf (fout, "\tpmin:\t%d\n", g->pmin);
+ if (g->pmax != G_PMAX)
+ fprintf (fout, "\tpmax:\t%d\n", g->pmax);
+ if (g->rmin != G_RMIN)
+ fprintf (fout, "\trmin:\t%d\n", g->rmin);
+ if (g->rmax != G_RMAX)
+ fprintf (fout, "\trmax:\t%d\n", g->rmax);
+ if (g->smax != G_SMAX)
+ fprintf (fout, "\tsmax:\t%d\n", g->smax);
+}
diff --git a/src/vcg.h b/src/vcg.h
new file mode 100644
index 0000000..ed35603
--- /dev/null
+++ b/src/vcg.h
@@ -0,0 +1,963 @@
+/* VCG description handler for Bison.
+
+ Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef VCG_H_
+# define VCG_H_
+
+/* VCG color map. The 32 prime predefined colors. */
+enum color
+{
+ white = 0,
+ blue,
+ red,
+ green = 3,
+ yellow,
+ magenta,
+ cyan = 6,
+ darkgrey,
+ darkblue,
+ darkred = 9,
+ darkgreen,
+ darkyellow,
+ darkmagenta = 12,
+ darkcyan,
+ gold,
+ lightgrey = 15,
+ lightblue,
+ lightred,
+ lightgreen = 18,
+ lightyellow,
+ lightmagenta,
+ lightcyan = 21,
+ lilac,
+ turquoise,
+ aquamarine = 24,
+ khaki,
+ purple,
+ yellowgreen = 27,
+ pink,
+ orange,
+ orchid,
+ black = 31
+};
+
+/* VCG textmode. Specify the adjustement of the text within the border of a summary node. */
+enum textmode
+{
+ centered,
+ left_justify,
+ right_justify
+};
+
+/* VCG shapes. Used for nodes shapes. */
+enum shape
+{
+ box,
+ rhomb,
+ ellipse,
+ triangle
+};
+
+/* Structure for colorentries. */
+struct colorentry
+{
+ int color_index;
+ int red_cp;
+ int green_cp;
+ int blue_cp;
+ struct colorentry *next;
+};
+
+/* Structure to construct lists of classnames. */
+struct classname
+{
+ int no; /* Class number */
+ const char *name; /* Name associated to the class no. */
+ struct classname *next; /* next name class association. */
+};
+
+/* Structure is in infoname. */
+struct infoname
+{
+ int integer;
+ char const *chars;
+ struct infoname *next;
+};
+
+/* VCG decision yes/no. */
+enum decision
+{
+ yes,
+ no
+};
+
+/* VCG graph orientation. */
+enum orientation
+{
+ top_to_bottom,
+ bottom_to_top,
+ left_to_right,
+ right_to_left
+};
+
+/* VCG alignment for node alignement. */
+enum alignment
+{
+ center,
+ top,
+ bottom
+};
+
+/* VCG arrow mode. */
+enum arrow_mode
+{
+ fixed,
+ free_a
+};
+
+/* VCG crossing weight type. */
+enum crossing_type
+{
+ bary,
+ median,
+ barymedian,
+ medianbary
+};
+
+/* VCG views. */
+enum view
+{
+ normal_view,
+ cfish,
+ pfish,
+ fcfish,
+ fpfish
+};
+
+/*------------------------------------------------------.
+| Node attributs list. structure that describes a node. |
+`------------------------------------------------------*/
+
+struct node
+{
+ /* Title the unique string identifying the node. This attribute is
+ mandatory. */
+ const char *title;
+
+ /* Label the text displayed inside the node. If no label is specified
+ then the title of the node will be used. Note that this text may
+ contain control characters like NEWLINE that influences the size of
+ the node. */
+ const char *label;
+
+ /* loc is the location as x, y position relatively to the system of
+ coordinates of the graph. Locations are specified in the form
+ loc: - x: xpos y: ypos "". The locations of nodes are only valid,
+ if the whole graph is fully specified with locations and no part is
+ folded. The layout algorithm of the tool calculates appropriate x, y
+ positions, if at least one node that must be drawn (i.e., is not
+ hidden by folding or edge classes) does not have fixed specified
+ locations.
+ Default is none. */
+ int locx;
+ int locy;
+
+ /* vertical order is the level position (rank) of the node. We can also
+ specify level: int. Level specifications are only valid, if the
+ layout is calculated, i.e. if at least one node does not have a
+ fixed location specification. The layout algorithm partitioned all
+ nodes into levels 0...maxlevel. Nodes at the level 0 are on the
+ upper corner. The algorithm is able to calculate appropriate levels
+ for the nodes automatically, if no fixed levels are given.
+ Specifications of levels are additional constraints, that may be
+ ignored, if they are in conflict with near edge specifications.
+ Default values are unspecified. */
+ int vertical_order;
+
+ /* horizontal order is the horizontal position of the node within a
+ level. The nodes which are specified with horizontal positions are
+ ordered according to these positions within the levels. The nodes
+ which do not have this attribute are inserted into this ordering by
+ the crossing reduction mechanism. Note that connected components are
+ handled separately, thus it is not possible to intermix such
+ components by specifying a horizontal order. If the algorithm for
+ downward laid out trees is used, the horizontal order influences
+ only the order of the child nodes at a node, but not the order of
+ the whole level.
+ Default is unspecified. */
+ int horizontal_order;
+
+ /* width, height is the width and height of a node including the border.
+ If no value (in pixels) is given then width and height are
+ calculated from the size of the label.
+ Default are width and height of the label. */
+ int width;
+ int height;
+
+ /* shrink, stretch gives the shrinking and stretching factor of the
+ node. The values of the attributes width, height, borderwidth and
+ the size of the label text is scaled by ((stretch=shrink) \Lambda
+ 100) percent. Note that the actual scale value is determined by the
+ scale value of a node relatively to a scale value of the graph,
+ i.e. if (stretch,shrink) = (2,1) for the graph and (stretch,shrink)
+ = (2,1) for the node of the graph, then the node is scaled by the
+ factor 4 compared to the normal size. The scale value can also be
+ specified by scaling: float.
+ Default are 1,1. */
+ int shrink;
+ int stretch;
+
+ /* folding specifies the default folding of the nodes. The folding k
+ (with k ? 0) means that the graph part that is reachable via edges
+ of a class less or equal to k is folded and displayed as one node.
+ There are commands to unfold such summary nodes, see section 5. If
+ no folding is specified for a node, then the node may be folded if
+ it is in the region of another node that starts the folding. If
+ folding 0 is specified, then the node is never folded. In this case
+ the folding stops at the predecessors of this node, if it is
+ reachable from another folding node. The summary node inherits some
+ attributes from the original node which starts the folding (all
+ color attributes, textmode and label, but not the location). A
+ folded region may contain folded regions with smaller folding class
+ values (nested foldings). If there is more than one node that start
+ the folding of the same region (this implies that the folding class
+ values are equal) then the attributes are inherited by one of these
+ nodes nondeterministically. If foldnode attributes are specified,
+ then the summary node attributes are inherited from these attributes.
+ Default is none. */
+ int folding;
+
+ /* shape specifies the visual appearance of a node: box, rhomb, ellipse,
+ and triangle. The drawing of ellipses is much slower than the drawing
+ of the other shapes.
+ Default is box. */
+ enum shape shape;
+
+ /* textmode specifies the adjustment of the text within the border of a
+ node. The possibilities are center, left.justify and right.justify.
+ Default is center. */
+ enum textmode textmode;
+
+ /* borderwidth specifies the thickness of the node's border in pixels.
+ color is the background color of the node. If none is given, the
+ node is white. For the possibilities, see the attribute color for
+ graphs.
+ Default is 2. */
+ int borderwidth;
+
+ /* node color.
+ Default is white or transparent, */
+ enum color color;
+
+ /* textcolor is the color for the label text. bordercolor is the color
+ of the border. Default color is the textcolor. info1, info2, info3
+ combines additional text labels with a node or a folded graph. info1,
+ Default is black. */
+ enum color textcolor;
+
+ /* info2, info3 can be selected from the menu. The corresponding text
+ labels can be shown by mouse clicks on nodes.
+ Default are null strings. */
+ const char *infos[3];
+
+ /* Node border color.
+ Default is textcolor. */
+ enum color bordercolor;
+
+ /* Next node node... */
+ struct node *next;
+};
+
+/* typedef alias. */
+typedef struct node node;
+
+/*-------------------------------------------------------.
+| Edge attributs list. Structure that describes an edge. |
+`-------------------------------------------------------*/
+
+/* VCG Edge type. */
+enum edge_type
+{
+ normal_edge,
+ back_edge,
+ near_edge,
+ bent_near_edge
+};
+
+/* Structs enum definitions for edges. */
+enum linestyle
+{
+ continuous,
+ dashed,
+ dotted,
+ invisible
+};
+
+enum arrowstyle
+{
+ solid,
+ line,
+ none
+};
+
+/* The struct edge itself. */
+struct edge
+{
+
+ /* Edge type.
+ Default is normal edge. */
+ enum edge_type type;
+
+ /* Sourcename is the title of the source node of the edge.
+ Default: none. */
+ const char *sourcename; /* Mandatory. */
+
+ /* Targetname is the title of the target node of the edge.
+ Default: none. */
+ const char *targetname; /* Mandatory. */
+
+ /* Label specifies the label of the edge. It is drawn if
+ display.edge.labels is set to yes.
+ Default: no label. */
+ const char *label;
+
+ /* Linestyle specifies the style the edge is drawn. Possibilities are:
+ ffl continuous a solid line is drawn ( -- ) ffl dashed the edge
+ consists of single dashes ( - - - ) ffl dotted the edge is made of
+ single dots ( \Delta \Delta \Delta ) ffl invisible the edge is not
+ drawn. The attributes of its shape (color, thickness) are ignored.
+ To draw a dashed or dotted line needs more time than solid lines.
+ Default is continuous. */
+ enum linestyle linestyle;
+
+ /* Thickness is the thickness of an edge.
+ Default is 2. */
+ int thickness;
+
+ /* Class specifies the folding class of the edge. Nodes reachable by
+ edges of a class less or equal to a constant k specify folding
+ regions of k. See the node attribute folding and the folding commands.
+ Default is 1. */
+ int class;
+
+ /* color is the color of the edge.
+ Default is black. */
+ enum color color;
+
+ /* textcolor is the color of the label of the edge. arrowcolor,
+ backarrowcolor is the color of the arrow head and of the backarrow
+ head. priority The positions of the nodes are mainly determined by
+ the incoming and outgoing edges. One can think of rubberbands instead
+ of edges that pull a node into its position. The priority of an edges
+ corresponds to the strength of the rubberband.
+ Default is color. */
+ enum color textcolor;
+
+ /* Arrow color.
+ Default is color. */
+ enum color arrowcolor;
+
+ /* BackArrow color.
+ Default is color. */
+ enum color backarrowcolor;
+
+ /* arrowsize, backarrowsize The arrow head is a right-angled, isosceles
+ triangle and the cathetuses have length arrowsize.
+ Default is 10. */
+ int arrowsize;
+
+ /* Backarrow size
+ Default is 0. */
+ int backarrowsize;
+
+ /* arrowstyle, backarrowstyle Each edge has two arrow heads: the one
+ appears at the target node (the normal arrow head), the other appears
+ at the source node (the backarrow head). Normal edges only have the
+ normal solid arrow head, while the backarrow head is not drawn, i.e.
+ it is none. Arrowstyle is the style of the normal arrow head, and
+ backarrowstyle is the style of the backarrow head. Styles are none,
+ i.e. no arrow head, solid, and line.
+ Default is solid. */
+ enum arrowstyle arrowstyle;
+
+ /* Default is none. */
+ enum arrowstyle backarrowstyle;
+
+ /* Default is 1. */
+ int priority;
+
+ /* Anchor. An anchor point describes the vertical position in a node
+ where an edge goes out. This is useful, if node labels are several
+ lines long, and outgoing edges are related to label lines. (E.g.,
+ this allows a nice visualization of structs containing pointers as
+ fields.).
+ Default is none. */
+ int anchor;
+
+ /* Horizontal order is the horizontal position the edge. This is of
+ interest only if the edge crosses several levels because it specifies
+ the point where the edge crosses the level. within a level. The nodes
+ which are specified with horizontal positions are ordered according
+ to these positions within a level. The horizontal position of a long
+ edge that crosses the level specifies between which two node of that
+ level the edge has to be drawn. Other edges which do not have this
+ attribute are inserted into this ordering by the crossing reduction
+ mechanism. Note that connected components are handled separately,
+ thus it is not possible to intermix such components by specifying a
+ horizontal order.
+ Default is unspcified. */
+ int horizontal_order;
+
+ /*
+ ** Next edge node...
+ */
+ struct edge *next;
+
+};
+
+/*
+** typedef alias.
+*/
+typedef struct edge edge;
+
+/*--------------------------------------------------------.
+| Graph attributs list. Structure that describes a graph. |
+`--------------------------------------------------------*/
+
+struct graph
+{
+ /* Graph title or name.
+ Title specifies the name (a string) associated with the graph. The
+ default name of a subgraph is the name of the outer graph, and the
+ name of the outmost graph is the name of the specification input
+ file. The name of a graph is used to identify this graph, e.g., if
+ we want to express that an edge points to a subgraph. Such edges
+ point to the root of the graph, i.e. the first node of the graph or
+ the root of the first subgraph in the graph, if the subgraph is
+ visualized explicitly.
+ By default, it's the name of the vcg graph file description. */
+ const char *title;
+
+ /* Graph label.
+ Label the text displayed inside the node, when the graph is folded
+ to a node. If no label is specified then the title of the graph will
+ be used. Note that this text may contain control characters like
+ NEWLINE that influences the size of the node.
+ By default, it takes the title value */
+ const char *label;
+
+ /* Any informations.
+ Info1, info2, info3 combines additional text labels with a node or a
+ folded graph. info1, info2, info3 can be selected from the menu
+ interactively. The corresponding text labels can be shown by mouse
+ clicks on nodes.
+ Default values are empty strings (here NULL pointers) */
+ const char *infos[3];
+
+ /* Background color and summary node colors
+ Color specifies the background color for the outermost graph, or the
+ color of the summary node for subgraphs. Colors are given in the enum
+ declared above. If more than these default colors are needed, a
+ color map with maximal 256 entries can be used. The first 32 entries
+ correspond to the colors just listed. A color of the color map can
+ selected by the color map index, an integer, for instance red has
+ index 2, green has index 3, etc.
+ Default is white for background and white or transparent for summary
+ nodes. */
+ enum color color;
+
+ /* Textcolor.
+ need explanations ???
+ default is black for summary nodes. */
+ enum color textcolor;
+
+ /* Bordercolor is the color of the summary node's border. Default color
+ is the textcolor. width, height are width and height of the
+ displayed part of the window of the outermost graph in pixels, or
+ width and height of the summary node of inner subgraphs.
+ Default is the default of the textcolor. */
+ enum color bordercolor;
+
+ /* Width, height are width and height of the displayed part of the
+ window of the outermost graph in pixels, or width and height of the
+ summary node of inner subgraphs.
+ Default value is 100. */
+ int width;
+ int height;
+
+ /* Specify the thickness if summary node's border in pixels.
+ default value is 2. */
+ int borderwidth;
+
+ /* x, y are the x-position and y-position of the graph's window in
+ pixels, relatively to the root screen, if it is the outermost graph.
+ The origin of the window is upper, left hand. For inner subgraphs,
+ it is the position of the folded summary node. The position can also
+ be specified in the form loc: fx:int y:intg.
+ The default value is 0. */
+ int x;
+ int y;
+
+ /* folding of a subgraph is 1, if the subgraph is fused, and 0, if the
+ subgraph is visualized explicitly. There are commands to unfold such
+ summary nodes.
+ Default value is 0 */
+ int folding;
+
+ /* Shrink, stretch gives the shrinking and stretching factor for the
+ graph's representation (default is 1, 1). ((stretch=shrink) \Lambda
+ 100) is the scaling of the graph in percentage, e.g.,
+ (stretch,shrink) = (1,1) or (2,2) or (3,3) : : : is normal size,
+ (stretch,shrink) = (1,2) is half size, (stretch,shrink) = (2,1) is
+ double size. For subgraphs, it is also the scaling factor of the
+ summary node. The scaling factor can also be specified by scaling:
+ float (here, scaling 1.0 means normal size). */
+ int shrink;
+ int stretch;
+
+ /* textmode specifies the adjustment of the text within the border of a
+ summary node. The possibilities are center, left.justify and
+ right.justify.
+ Default value is center.*/
+ enum textmode textmode;
+
+ /* Shape can be specified for subgraphs only. It is the shape of the
+ subgraph summary node that appears if the subgraph is folded: box,
+ rhomb, ellipse, and triangle. vertical order is the level position
+ (rank) of the summary node of an inner subgraph, if this subgraph is
+ folded. We can also specify level: int. The level is only
+ recognized, if an automatical layout is calculated. horizontal order
+ is the horizontal position of the summary node within a level. The
+ nodes which are specified with horizontal positions are ordered
+ according to these positions within the levels. The nodes which do
+ not have this attribute are inserted into this ordering by the
+ crossing reduction mechanism. Note that connected
+ components are handled separately, thus it is not possible to
+ intermix such components by specifying a horizontal order. If the
+ algorithm for downward laid out trees is used, the horizontal order
+ influences only the order of the child nodes at a node, but not the
+ order of the whole level.
+ Default is box, other: rhomb, ellipse, triangle. */
+ enum shape shape;
+
+ /* Vertical order is the level position (rank) of the summary node of an
+ inner subgraph, if this subgraph is folded. We can also specify
+ level: int. The level is only recognized, if an automatical layout is
+ calculated. */
+ int vertical_order;
+
+ /* Horizontal order is the horizontal position of the summary node within
+ a level. The nodes which are specified with horizontal positions are
+ ordered according to these positions within the levels. The nodes which
+ do not have this attribute are inserted into this ordering by the
+ crossing reduction mechanism. Note that connected components are
+ handled separately, thus it is not possible to intermix such components
+ by specifying a horizontal order. If the algorithm for downward laid
+ out trees is used, the horizontal order influences only the order of
+ the child nodes at a node, but not the order of the whole level. */
+ int horizontal_order;
+
+ /* xmax, ymax specify the maximal size of the virtual window that is
+ used to display the graph. This is usually larger than the displayed
+ part, thus the width and height of the displayed part cannot be
+ greater than xmax and ymax. Only those parts of the graph are drawn
+ that are inside the virtual window. The virtual window can be moved
+ over the potential infinite system of coordinates by special
+ positioning commands.
+ Defaults are 90 and 90. */
+ int xmax;
+ int ymax;
+
+ /* xy-base: specify the upper left corner coordinates of the graph
+ relatively to the root window.
+ Defaults are 5, 5. */
+ int xbase;
+ int ybase;
+
+ /* xspace, yspace the minimum horizontal and vertical distance between
+ nodes. xlspace is the horizontal distance between lines at the
+ points where they cross the levels. (At these points, dummy nodes
+ are used. In fact, this is the horizontal distance between dummy
+ nodes.) It is recommended to set xlspace to a larger value, if
+ splines are used to draw edges, to prevent sharp bendings.
+ Default are 20 and 70. */
+ int xspace;
+ int yspace;
+
+ /* The horizontal space between lines at the point where they cross
+ the levels.
+ defaults value is 1/2 xspace (polygone) and 4/5 xspace (splines)*/
+ int xlspace;
+
+ /* xraster, yraster specifies the raster distance for the position of
+ the nodes. The center of a node is aligned to this raster. xlraster
+ is the horizontal raster for the positions of the line control
+ points (the dummy nodes). It should be a divisor of xraster.
+ defaults are 1,1. */
+ int xraster;
+ int yraster;
+
+ /* xlraster is the horizontal raster for the positions of the line
+ control points (the dummy nodes). It should be a divisor of xraster.
+ defaults is 1. */
+ int xlraster;
+
+ /* hidden specifies the classes of edges that are hidden.
+ Edges that are within such a class are not laid out nor drawn.
+ Nodes that are only reachable (forward or backward) by edges of an
+ hidden class are not drawn. However, nodes that are not reachable
+ at all are drawn. (But see attribute ignore.singles.) Specification
+ of classes of hidden edges allows to hide parts of a graph, e.g.,
+ annotations of a syntax tree. This attribute is only allowed at the
+ outermost level. More than one settings are possible to specify
+ exactly the set of classes that are hidden. Note the important
+ difference between hiding of edges and the edge line style invisible.
+ Hidden edges are not existent in the layout. Edges with line style
+ invisible are existent in the layout; they need space and may
+ produce crossings and influence the layout, but you cannot see
+ them.
+ No default value. */
+ int hidden;
+
+ /* Classname allows to introduce names for the edge classes. The names
+ are used in the menus. infoname allows to introduce names for the
+ additional text labels. The names are used in the menus.
+ defaults are 1,2,3...
+ By default, no class names. */
+ struct classname *classname;
+
+ /* Infoname allows to introduce names for the additional text labels.
+ The names are used in the menus.
+ Infoname is given by an integer and a string.
+ The default value is NULL. */
+ struct infoname *infoname;
+
+ /* Colorentry allows to fill the color map. A color is a triplet of integer
+ values for the red/green/blue-part. Each integer is between 0 (off) and
+ 255 (on), e.g., 0 0 0 is black and 255 255 255 is white. For instance
+ colorentry 75 : 70 130 180 sets the map entry 75 to steel blue. This
+ color can be used by specifying just the number 75.
+ Default id NULL. */
+ struct colorentry *colorentry;
+
+ /* Layout downfactor, layout upfactor, layout nearfactor The layout
+ algorithm partitions the set of edges into edges pointing upward,
+ edges pointing downward, and edges pointing sidewards. The last type
+ of edges is also called near edges. If the layout.downfactor is
+ large compared to the layout.upfactor and the layout.nearfactor,
+ then the positions of the nodes is mainly determined by the edges
+ pointing downwards. If the layout.upfactor is large compared to the
+ layout.downfactor and the layout.nearfactor, then the positions of
+ the nodes is mainly determined by the edges pointing upwards. If the
+ layout.nearfactor is large, then the positions of the nodes is
+ mainly determined by the edges pointing sidewards. These attributes
+ have no effect, if the method for downward laid out trees is used.
+ Default is normal. */
+ int layout_downfactor;
+ int layout_upfactor;
+ int layout_nearfactor;
+ /* Layout splinefactor determines the bending at splines. The factor
+ 100 indicates a very sharp bending, a factor 1 indicates a very flat
+ bending. Useful values are 30 : : : 80. */
+ int layout_splinefactor;
+
+ /* Late edge labels yes means that the graph is first partitioned and
+ then, labels are introduced. The default algorithm first creates
+ labels and then partitions the graph, which yield a more compact
+ layout, but may have more crossings.
+ Default is no. */
+ enum decision late_edge_labels;
+
+ /* Display edge labels yes means display labels and no means don't
+ display edge labels.
+ Default vaule is no. */
+ enum decision display_edge_labels;
+
+ /* Dirty edge labels yes enforces a fast layout of edge labels, which
+ may very ugly because several labels may be drawn at the same place.
+ Dirty edge labels cannot be used if splines are used.
+ Default is no.
+ */
+ enum decision dirty_edge_labels;
+
+ /* Finetuning no switches the fine tuning phase of the graph layout
+ algorithm off, while it is on as default. The fine tuning phase
+ tries to give all edges the same length.
+ Default is yes. */
+ enum decision finetuning;
+
+ /* Ignore singles yes hides all nodes which would appear single and
+ unconnected from the remaining graph. Such nodes have no edge at all
+ and are sometimes very ugly. Default is to show all nodes.
+ Default is no. */
+ enum decision ignore_singles;
+
+ /* priority phase yes replaces the normal pendulum method by a
+ specialized method: It forces straight long edges with 90 degree,
+ just as the straight phase. In fact, the straight phase is a fine
+ tune phase of the priority method. This phase is also recommended,
+ if an orthogonal layout is selected (see manhattan.edges).
+ Default is no. */
+ enum decision priority_phase;
+
+ /* manhattan edges yes switches the orthogonal layout on. Orthogonal
+ layout (or manhattan layout) means that all edges consist of line
+ segments with gradient 0 or 90 degree. Vertical edge segments might
+ by shared by several edges, while horizontal edge segments are never
+ shared. This results in very aesthetical layouts just for flowcharts.
+ If the orthogonal layout is used, then the priority phase and
+ straight phase should be used. Thus, these both phases are switched
+ on, too, unless priority layout and straight line tuning are
+ switched off explicitly.
+ Default is no. */
+ enum decision manhattan_edges;
+
+ /* Smanhattan edges yes switches a specialized orthogonal layout on:
+ Here, all horizontal edge segments between two levels share the same
+ horizontal line, i.e. not only vertical edge segments are shared,
+ but horizontal edge segments are shared by several edges, too. This
+ looks nice for trees but might be too confusing in general, because
+ the location of an edge might be ambiguously.
+ Default is no. */
+ enum decision smanhattan_edges;
+
+ /* Near edges no suppresses near edges and bent near edges in the
+ graph layout.
+ Default is yes. */
+ enum decision near_edges;
+
+ /* Orientation specifies the orientation of the graph: top.to.bottom,
+ bottom.to.top, left.to.right or right.to.left. Note: the normal
+ orientation is top.to.bottom. All explanations here are given
+ relatively to the normal orientation, i.e., e.g., if the orientation
+ is left to right, the attribute xlspace is not the horizontal but
+ the vertical distance between lines, etc.
+ Default is to_to_bottom. */
+ enum orientation orientation;
+
+ /* Node alignment specified the vertical alignment of nodes at the
+ horizontal reference line of the levels. If top is specified, the
+ tops of all nodes of a level have the same y-coordinate; on bottom,
+ the bottoms have the same y-coordinate, on center the nodes are
+ centered at the levels.
+ Default is center. */
+ enum alignment node_alignment;
+
+ /* Port sharing no suppresses the sharing of ports of edges at the
+ nodes. Normally, if multiple edges are adjacent to the same node,
+ and the arrow head of all these edges has the same visual appearance
+ (color, size, etc.), then these edges may share a port at a node,
+ i.e. only one arrow head is draw, and all edges are incoming into
+ this arrow head. This allows to have many edges adjacent to one node
+ without getting confused by too many arrow heads. If no port sharing
+ is used, each edge has its own port, i.e. its own place where it is
+ adjacent to the node.
+ Default is yes. */
+ enum decision port_sharing;
+
+ /* Arrow mode fixed (default) should be used, if port sharing is used,
+ because then, only a fixed set of rotations for the arrow heads are
+ used. If the arrow mode is free, then each arrow head is rotated
+ individually to each edge. But this can yield to a black spot, where
+ nothing is recognizable, if port sharing is used, since all these
+ qdifferently rotated arrow heads are drawn at the same place. If the
+ arrow mode is fixed, then the arrow head is rotated only in steps of
+ 45 degree, and only one arrow head occurs at each port.
+ Default is fixed. */
+ enum arrow_mode arrow_mode;
+
+ /* Treefactor The algorithm tree for downward laid out trees tries to
+ produce a medium dense, balanced tree-like layout. If the tree
+ factor is greater than 0.5, the tree edges are spread, i.e. they
+ get a larger gradient. This may improve the readability of the tree.
+ Note: it is not obvious whether spreading results in a more dense or
+ wide layout. For a tree, there is a tree factor such that the whole
+ tree is minimal wide.
+ Default is 0.5. */
+ float treefactor;
+
+ /* Spreadlevel This parameter only influences the algorithm tree, too.
+ For large, balanced trees, spreading of the uppermost nodes would
+ enlarge the width of the tree too much, such that the tree does not
+ fit anymore in a window. Thus, the spreadlevel specifies the minimal
+ level (rank) where nodes are spread. Nodes of levels upper than
+ spreadlevel are not spread.
+ Default is 1. */
+ int spreadlevel;
+
+ /* Crossing weight specifies the weight that is used for the crossing
+ reduction: bary (default), median, barymedian or medianbary. We
+ cannot give a general recommendation, which is the best method. For
+ graphs with very large average degree of edges (number of incoming
+ and outgoing edges at a node), the weight bary is the fastest
+ method. With the weights barymedian and medianbary, equal weights of
+ different nodes are not very probable, thus the crossing reduction
+ phase 2 might be very fast.
+ Default is bary. */
+ enum crossing_type crossing_weight;
+
+ /* Crossing phase2 is the most time consuming phase of the crossing
+ reduction. In this phase, the nodes that happen to have equal
+ crossing weights are permuted. By specifying no, this phase is
+ suppressed.
+ Default is yes. */
+ enum decision crossing_phase2;
+
+ /* Crossing optimization is a postprocessing phase after the normal
+ crossing reduction: we try to optimize locally, by exchanging pairs
+ of nodes to reduce the crossings. Although this phase is not very
+ time consuming, it can be suppressed by specifying no.
+ Default is yes. */
+ enum decision crossing_optimization;
+
+ /* View allows to select the fisheye views. Because
+ of the fixed size of the window that shows the graph, we normally
+ can only see a small amount of a large graph. If we shrink the graph
+ such that it fits into the window, we cannot recognize any detail
+ anymore. Fisheye views are coordinate transformations: the view onto
+ the graph is distort, to overcome this usage deficiency. The polar
+ fisheye is easy to explain: assume a projection of the plane that
+ contains the graph picture onto a spheric ball. If we now look onto
+ this ball in 3 D, we have a polar fisheye view. There is a focus
+ point which is magnified such that we see all details. Parts of the
+ plane that are far away from the focus point are demagnified very
+ much. Cartesian fisheye have a similar effect; only the formula for
+ the coordinate transformation is different. Selecting cfish means
+ the cartesian fisheye is used which demagnifies such that the whole
+ graph is visible (self adaptable cartesian fisheye). With fcfish,
+ the cartesian fisheye shows the region of a fixed radius around the
+ focus point (fixed radius cartesian fisheye). This region might be
+ smaller than the whole graph, but the demagnification needed to show
+ this region in the window is also not so large, thus more details
+ are recognizable. With pfish the self adaptable polar fisheye is
+ selected that shows the whole graph, and with fpfish the fixed
+ radius polar fisheye is selected.
+ Default is normal view. */
+ enum view view;
+
+ /* Edges no suppresses the drawing of edges.
+ Default is yes. */
+ enum decision edges;
+
+ /* Nodes no suppresses the drawing of nodes.
+ Default is yes. */
+ enum decision nodes;
+
+ /* Splines specifies whether splines are used to draw edges (yes or no).
+ As default, polygon segments are used to draw edges, because this is
+ much faster. Note that the spline drawing routine is not fully
+ validated, and is very slow. Its use is mainly to prepare high
+ quality PostScript output for very small graphs.
+ Default is no. */
+ enum decision splines;
+
+ /* Bmax set the maximal number of iterations that are done for the
+ reduction of edge bendings.
+ Default is 100. */
+ int bmax;
+
+ /* Cmin set the minimal number of iterations that are done for the
+ crossing reduction with the crossing weights. The normal method
+ stops if two consecutive checks does not reduce the number of
+ crossings anymore. However, this increasing of the number of
+ crossings might be locally, such that after some more iterations,
+ the crossing number might decrease much more.
+ Default is 0. */
+ int cmin;
+
+ /* Cmax set the maximal number of interactions for crossing reduction.
+ This is helpful for speeding up the layout process.
+ Default is -1, which represents infinity. */
+ int cmax;
+
+ /* Pmin set the minimal number of iterations that is done with the
+ pendulum method. Similar to the crossing reduction, this method
+ stops if the `imbalancement weight' does not decreases anymore.
+ However, the increasing of the imbalancement weight might be locally,
+ such that after some more iterations, the imbalancement weight might
+ decrease much more.
+ Default is 0. */
+ int pmin;
+
+ /* Pmax set the maximal number of iterations of the pendulum method.
+ This is helpful for speedup the layout process.
+ Default is 100. */
+ int pmax;
+
+ /* Rmin set the minimal number of iterations that is done with the
+ rubberband method. This is similar as for the pendulum method.
+ Default is 0. */
+ int rmin;
+
+ /* Rmax set the maximal number of iterations of the rubberband method.
+ This is helpful for speedup the layout process.
+ Default is 100. */
+ int rmax;
+
+ /* Smax set the maximal number of iterations of the straight line
+ recognition phase (useful only, if the straight line recognition
+ phase is switched on, see attribute straight.phase).
+ Default is 100. */
+ int smax;
+
+ /* Generic values.
+ */
+ node node;
+ edge edge;
+
+ /* List of nodes declared.
+ Pointer. */
+ node *node_list;
+
+ /* List of edges declared.
+ Pointer. */
+ edge *edge_list;
+
+};
+
+/* Graph typedefs. */
+typedef struct graph graph;
+
+void new_graph (graph *g);
+void new_node (node *n);
+void new_edge (edge *e);
+
+void add_node (graph *g, node *n);
+void add_edge (graph *g, edge *e);
+
+void add_colorentry (graph *g, int color_idx, int red_cp,
+ int green_cp, int blue_cp);
+void add_classname (graph *g, int val, const char *name);
+void add_infoname (graph *g, int val, const char *name);
+
+void open_node (FILE *fout);
+void output_node (node *n, FILE *fout);
+void close_node (FILE *fout);
+
+void open_edge (edge *e, FILE *fout);
+void output_edge (edge *e, FILE *fout);
+void close_edge (FILE *fout);
+
+void open_graph (FILE *fout);
+void output_graph (graph *g, FILE *fout);
+void close_graph (graph *g, FILE *fout);
+
+#endif /* VCG_H_ */
diff --git a/src/vcg_defaults.h b/src/vcg_defaults.h
new file mode 100644
index 0000000..78e24b5
--- /dev/null
+++ b/src/vcg_defaults.h
@@ -0,0 +1,181 @@
+/* VCG description handler for Bison.
+
+ Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ Bison is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ Bison is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Bison; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#ifndef VCG_DEFAULTS_H_
+# define VCG_DEFAULTS_H_
+
+/* Graph defaults. */
+# define G_TITLE NULL
+# define G_LABEL NULL
+# define G_INFOS1 NULL
+# define G_INFOS2 NULL
+# define G_INFOS3 NULL
+
+# define G_COLOR white
+# define G_TEXTCOLOR black
+# define G_BORDERCOLOR G_TEXTCOLOR
+
+# define G_WIDTH 100
+# define G_HEIGHT 100
+# define G_BORDERWIDTH 2
+
+# define G_X 0
+# define G_Y 0
+
+# define G_FOLDING 0
+
+# define G_SHRINK 1
+# define G_STRETCH 1
+
+# define G_TEXTMODE centered
+# define G_SHAPE box
+
+# define G_VERTICAL_ORDER 0 /* Unspecified for subgraphs. */
+# define G_HORIZONTAL_ORDER 0 /* Unspecified for subgraphs. */
+
+# define G_XMAX 90 /* Not output. */
+# define G_YMAX 90 /* Not output. */
+
+# define G_XBASE 5
+# define G_YBASE 5
+
+# define G_XSPACE 20
+# define G_YSPACE 70
+# define G_XLSPACE (G_XSPACE / 2) /* Not output */
+
+# define G_XRASTER 1
+# define G_YRASTER 1
+# define G_XLRASTER 1
+
+# define G_HIDDEN (-1) /* No default value. */
+
+# define G_CLASSNAME NULL /* No class name association. */
+# define G_INFONAME NULL
+# define G_COLORENTRY NULL
+
+# define G_LAYOUTALGORITHM normal
+# define G_LAYOUT_DOWNFACTOR 1
+# define G_LAYOUT_UPFACTOR 1
+# define G_LAYOUT_NEARFACTOR 1
+# define G_LAYOUT_SPLINEFACTOR 70
+
+# define G_LATE_EDGE_LABELS no
+# define G_DISPLAY_EDGE_LABELS no
+# define G_DIRTY_EDGE_LABELS no
+# define G_FINETUNING yes
+# define G_IGNORE_SINGLES no
+# define G_LONG_STRAIGHT_PHASE no
+# define G_PRIORITY_PHASE no
+# define G_MANHATTAN_EDGES no
+# define G_SMANHATTAN_EDGES no
+# define G_NEAR_EDGES yes
+
+# define G_ORIENTATION top_to_bottom
+# define G_NODE_ALIGNMENT center
+# define G_PORT_SHARING yes
+# define G_ARROW_MODE fixed
+# define G_TREEFACTOR 0.5
+# define G_SPREADLEVEL 1
+# define G_CROSSING_WEIGHT bary
+# define G_CROSSING_PHASE2 yes
+# define G_CROSSING_OPTIMIZATION yes
+# define G_VIEW normal_view
+
+# define G_EDGES yes
+# define G_NODES yes
+# define G_SPLINES no
+
+# define G_BMAX 100
+# define G_CMIN 0
+# define G_CMAX (-1) /* Infinity */
+# define G_PMIN 0
+# define G_PMAX 100
+# define G_RMIN 0
+# define G_RMAX 100
+# define G_SMAX 100
+
+# define G_NODE_LIST NULL
+# define G_EDGE_LIST NULL
+
+/* Nodes defaults. */
+# define N_TITLE NULL
+# define N_LABEL NULL
+
+# define N_LOCX (-1) /* Default unspcified */
+# define N_LOCY (-1) /* Default unspcified */
+
+# define N_VERTICAL_ORDER (-1) /* Default unspcified */
+# define N_HORIZONTAL_ORDER (-1) /* Default unspcified */
+
+# define N_WIDTH (-1) /* We assume that we can't define it now. */
+# define N_HEIGHT (-1) /* also. */
+
+# define N_SHRINK 1
+# define N_STRETCH 1
+
+# define N_FOLDING (-1) /* no explicit default value. */
+
+# define N_SHAPE box
+# define N_TEXTMODE centered
+# define N_BORDERWIDTH 2
+
+# define N_COLOR white
+# define N_TEXTCOLOR black
+# define N_BORDERCOLOR N_TEXTCOLOR
+
+# define N_INFOS1 NULL
+# define N_INFOS2 NULL
+# define N_INFOS3 NULL
+
+# define N_NEXT NULL
+
+/* Edge defaults. */
+# define E_EDGE_TYPE normal_edge
+
+# define E_SOURCENAME NULL /* Mandatory. */
+# define E_TARGETNAME NULL /* Mandatory. */
+# define E_LABEL NULL
+
+# define E_LINESTYLE continuous
+# define E_THICKNESS 2
+
+# define E_CLASS 1
+
+# define E_COLOR black
+# define E_TEXTCOLOR E_COLOR
+# define E_ARROWCOLOR E_COLOR
+# define E_BACKARROWCOLOR E_COLOR
+
+# define E_ARROWSIZE 10
+# define E_BACKARROWSIZE 0
+
+# define E_ARROWSTYLE solid
+# define E_BACKARROWSTYLE none
+
+# define E_PRIORITY 1
+
+# define E_ANCHOR (-1)
+
+# define E_HORIZONTAL_ORDER (-1)
+
+# define E_NEXT NULL
+
+#endif /* not VCG_DEFAULTS_H_ */
diff --git a/src/yacc b/src/yacc
new file mode 100755
index 0000000..eda226d
--- /dev/null
+++ b/src/yacc
@@ -0,0 +1,2 @@
+#! /bin/sh
+exec /home/phanna/src/bison/bin/bison -y "$@"
diff --git a/stamp-h1 b/stamp-h1
new file mode 100644
index 0000000..4547fe1
--- /dev/null
+++ b/stamp-h1
@@ -0,0 +1 @@
+timestamp for config.h
diff --git a/tests/Makefile b/tests/Makefile
new file mode 100644
index 0000000..62b28e6
--- /dev/null
+++ b/tests/Makefile
@@ -0,0 +1,423 @@
+# Makefile.in generated by automake 1.9.6 from Makefile.am.
+# tests/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+srcdir = .
+top_srcdir = ..
+
+pkgdatadir = $(datadir)/bison
+pkglibdir = $(libdir)/bison
+pkgincludedir = $(includedir)/bison
+top_builddir = ..
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+INSTALL = /usr/bin/install -c
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
+subdir = tests
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+ $(srcdir)/atlocal.in $(srcdir)/bison.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/bison-i18n.m4 \
+ $(top_srcdir)/m4/c-working.m4 $(top_srcdir)/m4/cxx.m4 \
+ $(top_srcdir)/m4/dirname.m4 $(top_srcdir)/m4/dmalloc.m4 \
+ $(top_srcdir)/m4/dos.m4 $(top_srcdir)/m4/error.m4 \
+ $(top_srcdir)/m4/exitfail.m4 $(top_srcdir)/m4/extensions.m4 \
+ $(top_srcdir)/m4/getopt.m4 $(top_srcdir)/m4/gettext_gl.m4 \
+ $(top_srcdir)/m4/gnulib.m4 $(top_srcdir)/m4/hard-locale.m4 \
+ $(top_srcdir)/m4/hash.m4 $(top_srcdir)/m4/iconv.m4 \
+ $(top_srcdir)/m4/inttypes_h_gl.m4 \
+ $(top_srcdir)/m4/lib-ld_gl.m4 $(top_srcdir)/m4/lib-link.m4 \
+ $(top_srcdir)/m4/lib-prefix_gl.m4 $(top_srcdir)/m4/m4.m4 \
+ $(top_srcdir)/m4/mbrtowc.m4 $(top_srcdir)/m4/mbstate_t.m4 \
+ $(top_srcdir)/m4/mbswidth.m4 $(top_srcdir)/m4/nls.m4 \
+ $(top_srcdir)/m4/obstack.m4 $(top_srcdir)/m4/onceonly.m4 \
+ $(top_srcdir)/m4/po_gl.m4 $(top_srcdir)/m4/progtest.m4 \
+ $(top_srcdir)/m4/quote.m4 $(top_srcdir)/m4/quotearg.m4 \
+ $(top_srcdir)/m4/stdbool.m4 $(top_srcdir)/m4/stdint_h_gl.m4 \
+ $(top_srcdir)/m4/stdio-safer.m4 $(top_srcdir)/m4/stpcpy.m4 \
+ $(top_srcdir)/m4/strdup.m4 $(top_srcdir)/m4/strerror.m4 \
+ $(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
+ $(top_srcdir)/m4/strtol.m4 $(top_srcdir)/m4/strtoul.m4 \
+ $(top_srcdir)/m4/strverscmp.m4 $(top_srcdir)/m4/subpipe.m4 \
+ $(top_srcdir)/m4/timevar.m4 $(top_srcdir)/m4/uintmax_t_gl.m4 \
+ $(top_srcdir)/m4/ulonglong_gl.m4 \
+ $(top_srcdir)/m4/unistd-safer.m4 $(top_srcdir)/m4/unistd_h.m4 \
+ $(top_srcdir)/m4/unlocked-io.m4 $(top_srcdir)/m4/warning.m4 \
+ $(top_srcdir)/m4/xalloc.m4 $(top_srcdir)/m4/xstrndup.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(SHELL) $(top_srcdir)/build-aux/mkinstalldirs
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES = atlocal bison
+SOURCES =
+DIST_SOURCES =
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run aclocal-1.9
+AMDEP_FALSE = #
+AMDEP_TRUE =
+AMTAR = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run tar
+AUTOCONF = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoconf
+AUTOHEADER = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autoheader
+AUTOM4TE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run autom4te
+AUTOMAKE = ${SHELL} /usr/local/google/workspace/WebKit/tools/bison-2.3/build-aux/missing --run automake-1.9
+AWK = gawk
+BISON_CXX_WORKS = :
+BISON_CXX_WORKS_FALSE = #
+BISON_CXX_WORKS_TRUE =
+BISON_LOCALEDIR = /usr/share/locale
+CC = gcc
+CCDEPMODE = depmode=gcc3
+CFLAGS = -g -O2
+CPP = gcc -E
+CPPFLAGS =
+CXX = g++
+CXXDEPMODE = depmode=gcc3
+CXXFLAGS = -g -O2
+CYGPATH_W = echo
+DEFS = -DHAVE_CONFIG_H
+DEPDIR = .deps
+ECHO_C =
+ECHO_N = -n
+ECHO_T =
+EGREP = grep -E
+EXEEXT =
+GCC = yes
+GETOPT_H =
+GMSGFMT = /usr/bin/msgfmt
+HAVE__BOOL = 1
+INSTALL_DATA = ${INSTALL} -m 644
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_SCRIPT = ${INSTALL}
+INSTALL_STRIP_PROGRAM = ${SHELL} $(install_sh) -c -s
+INTLLIBS =
+INTL_MACOSX_LIBS =
+LDFLAGS =
+LEX = flex
+LEXLIB = -lfl
+LEX_OUTPUT_ROOT = lex.yy
+LIBICONV = -liconv
+LIBINTL =
+LIBOBJS = dirname$U.o exitfail$U.o hard-locale$U.o hash$U.o quote$U.o quotearg$U.o fopen-safer$U.o dup-safer$U.o fd-safer$U.o pipe-safer$U.o xmalloc$U.o
+LIBS =
+LTLIBICONV = -liconv
+LTLIBINTL =
+LTLIBOBJS = dirname$U.lo exitfail$U.lo hard-locale$U.lo hash$U.lo quote$U.lo quotearg$U.lo fopen-safer$U.lo dup-safer$U.lo fd-safer$U.lo pipe-safer$U.lo xmalloc$U.lo
+M4 = /usr/bin/m4
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+MKINSTALLDIRS = $(top_builddir)/build-aux/mkinstalldirs
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+exec_prefix = ${prefix}
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+ local.at \
+ testsuite.at \
+ input.at \
+ output.at sets.at reduce.at \
+ synclines.at headers.at actions.at conflicts.at \
+ calc.at \
+ torture.at existing.at regression.at \
+ c++.at \
+ cxx-type.at glr-regression.at
+
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+ echo 'm4_define([AT_PACKAGE_TARNAME], [$(PACKAGE_TARNAME)])'; \
+ echo 'm4_define([AT_PACKAGE_VERSION], [$(PACKAGE_VERSION)])'; \
+ echo 'm4_define([AT_PACKAGE_STRING], [$(PACKAGE_STRING)])'; \
+ echo 'm4_define([AT_PACKAGE_BUGREPORT], [$(PACKAGE_BUGREPORT)])'; \
+ } >$(srcdir)/package.m4
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+ test -z '$(VALGRIND)' || \
+ $(TESTSUITE) PREBISON='$(VALGRIND) -q' PREPARSER='$(VALGRIND) -q'
+
+.PHONY: maintainer-check
+maintainer-check: maintainer-check-posix maintainer-check-valgrind maintainer-check-g++
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
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diff --git a/tests/Makefile.am b/tests/Makefile.am
new file mode 100644
index 0000000..7cf188a
--- /dev/null
+++ b/tests/Makefile.am
@@ -0,0 +1,94 @@
+## Process this file with automake to create Makefile.in.
+
+## Makefile for Bison testsuite.
+
+## Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+## Foundation, Inc.
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2, or (at your option)
+## any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+## 02110-1301, USA.
+
+EXTRA_DIST = $(TESTSUITE_AT) testsuite package.m4
+
+DISTCLEANFILES = atconfig $(check_SCRIPTS)
+MAINTAINERCLEANFILES = Makefile.in $(TESTSUITE)
+
+## ------------ ##
+## package.m4. ##
+## ------------ ##
+
+$(srcdir)/package.m4: $(top_srcdir)/configure.ac
+ { \
+ echo '# Signature of the current package.'; \
+ echo 'm4_define([AT_PACKAGE_NAME], [$(PACKAGE_NAME)])'; \
+ echo 'm4_define([AT_PACKAGE_TARNAME], [$(PACKAGE_TARNAME)])'; \
+ echo 'm4_define([AT_PACKAGE_VERSION], [$(PACKAGE_VERSION)])'; \
+ echo 'm4_define([AT_PACKAGE_STRING], [$(PACKAGE_STRING)])'; \
+ echo 'm4_define([AT_PACKAGE_BUGREPORT], [$(PACKAGE_BUGREPORT)])'; \
+ } >$(srcdir)/package.m4
+
+## ------------ ##
+## Test suite. ##
+## ------------ ##
+
+TESTSUITE_AT = \
+ local.at \
+ testsuite.at \
+ input.at \
+ output.at sets.at reduce.at \
+ synclines.at headers.at actions.at conflicts.at \
+ calc.at \
+ torture.at existing.at regression.at \
+ c++.at \
+ cxx-type.at glr-regression.at
+
+TESTSUITE = $(srcdir)/testsuite
+
+AUTOTEST = $(AUTOM4TE) --language=autotest
+$(TESTSUITE): package.m4 $(TESTSUITE_AT)
+ $(AUTOTEST) -I $(srcdir) testsuite.at -o $@.tmp
+ mv $@.tmp $@
+
+atconfig: $(top_builddir)/config.status
+ cd $(top_builddir) && ./config.status tests/$@
+
+clean-local:
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+
+check-local: atconfig atlocal $(TESTSUITE)
+ $(SHELL) $(TESTSUITE) $(TESTSUITEFLAGS)
+
+check_SCRIPTS = bison
+
+# Run the test suite on the *installed* tree.
+installcheck-local:
+ $(SHELL) $(TESTSUITE) AUTOTEST_PATH="$(bindir)" $(TESTSUITEFLAGS)
+
+# Be real mean with it.
+.PHONY: maintainer-check-g++
+maintainer-check-g++: $(TESTSUITE)
+ $(TESTSUITE) CC='$(CXX)'
+
+.PHONY: maintainer-check-posix
+maintainer-check-posix: $(TESTSUITE)
+ $(TESTSUITE) POSIXLY_CORRECT=1 _POSIX2_VERSION=200112
+
+.PHONY: maintainer-check-valgrind
+maintainer-check-valgrind: $(TESTSUITE)
+ test -z '$(VALGRIND)' || \
+ $(TESTSUITE) PREBISON='$(VALGRIND) -q' PREPARSER='$(VALGRIND) -q'
+
+.PHONY: maintainer-check
+maintainer-check: maintainer-check-posix maintainer-check-valgrind maintainer-check-g++
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new file mode 100644
index 0000000..20f9b3c
--- /dev/null
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+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005 Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+datadir = @datadir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+EXTRA_DIST = $(TESTSUITE_AT) testsuite package.m4
+DISTCLEANFILES = atconfig $(check_SCRIPTS)
+MAINTAINERCLEANFILES = Makefile.in $(TESTSUITE)
+TESTSUITE_AT = \
+ local.at \
+ testsuite.at \
+ input.at \
+ output.at sets.at reduce.at \
+ synclines.at headers.at actions.at conflicts.at \
+ calc.at \
+ torture.at existing.at regression.at \
+ c++.at \
+ cxx-type.at glr-regression.at
+
+TESTSUITE = $(srcdir)/testsuite
+AUTOTEST = $(AUTOM4TE) --language=autotest
+check_SCRIPTS = bison
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+ && exit 0; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu tests/Makefile'; \
+ cd $(top_srcdir) && \
+ $(AUTOMAKE) --gnu tests/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+ esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+atlocal: $(top_builddir)/config.status $(srcdir)/atlocal.in
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+bison: $(top_builddir)/config.status $(srcdir)/bison.in
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+uninstall-info-am:
+tags: TAGS
+TAGS:
+
+ctags: CTAGS
+CTAGS:
+
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
+ list='$(DISTFILES)'; for file in $$list; do \
+ case $$file in \
+ $(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
+ $(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
+ esac; \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test "$$dir" != "$$file" && test "$$dir" != "."; then \
+ dir="/$$dir"; \
+ $(mkdir_p) "$(distdir)$$dir"; \
+ else \
+ dir=''; \
+ fi; \
+ if test -d $$d/$$file; then \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+ fi; \
+ cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+ else \
+ test -f $(distdir)/$$file \
+ || cp -p $$d/$$file $(distdir)/$$file \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+ $(MAKE) $(AM_MAKEFLAGS) $(check_SCRIPTS)
+ $(MAKE) $(AM_MAKEFLAGS) check-local
+check: check-am
+all-am: Makefile
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test -z "$(DISTCLEANFILES)" || rm -f $(DISTCLEANFILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic clean-local mostlyclean-am
+
+distclean: distclean-am
+ -rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-exec-am:
+
+install-info: install-info-am
+
+install-man:
+
+installcheck-am: installcheck-local
+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-info-am
+
+.PHONY: all all-am check check-am check-local clean clean-generic \
+ clean-local distclean distclean-generic distdir dvi dvi-am \
+ html html-am info info-am install install-am install-data \
+ install-data-am install-exec install-exec-am install-info \
+ install-info-am install-man install-strip installcheck \
+ installcheck-am installcheck-local installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-generic pdf pdf-am ps ps-am uninstall uninstall-am \
+ uninstall-info-am
+
+
+$(srcdir)/package.m4: $(top_srcdir)/configure.ac
+ { \
+ echo '# Signature of the current package.'; \
+ echo 'm4_define([AT_PACKAGE_NAME], [$(PACKAGE_NAME)])'; \
+ echo 'm4_define([AT_PACKAGE_TARNAME], [$(PACKAGE_TARNAME)])'; \
+ echo 'm4_define([AT_PACKAGE_VERSION], [$(PACKAGE_VERSION)])'; \
+ echo 'm4_define([AT_PACKAGE_STRING], [$(PACKAGE_STRING)])'; \
+ echo 'm4_define([AT_PACKAGE_BUGREPORT], [$(PACKAGE_BUGREPORT)])'; \
+ } >$(srcdir)/package.m4
+$(TESTSUITE): package.m4 $(TESTSUITE_AT)
+ $(AUTOTEST) -I $(srcdir) testsuite.at -o $@.tmp
+ mv $@.tmp $@
+
+atconfig: $(top_builddir)/config.status
+ cd $(top_builddir) && ./config.status tests/$@
+
+clean-local:
+ test ! -f $(TESTSUITE) || $(SHELL) $(TESTSUITE) --clean
+
+check-local: atconfig atlocal $(TESTSUITE)
+ $(SHELL) $(TESTSUITE) $(TESTSUITEFLAGS)
+
+# Run the test suite on the *installed* tree.
+installcheck-local:
+ $(SHELL) $(TESTSUITE) AUTOTEST_PATH="$(bindir)" $(TESTSUITEFLAGS)
+
+# Be real mean with it.
+.PHONY: maintainer-check-g++
+maintainer-check-g++: $(TESTSUITE)
+ $(TESTSUITE) CC='$(CXX)'
+
+.PHONY: maintainer-check-posix
+maintainer-check-posix: $(TESTSUITE)
+ $(TESTSUITE) POSIXLY_CORRECT=1 _POSIX2_VERSION=200112
+
+.PHONY: maintainer-check-valgrind
+maintainer-check-valgrind: $(TESTSUITE)
+ test -z '$(VALGRIND)' || \
+ $(TESTSUITE) PREBISON='$(VALGRIND) -q' PREPARSER='$(VALGRIND) -q'
+
+.PHONY: maintainer-check
+maintainer-check: maintainer-check-posix maintainer-check-valgrind maintainer-check-g++
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tests/actions.at b/tests/actions.at
new file mode 100644
index 0000000..7a03fb0
--- /dev/null
+++ b/tests/actions.at
@@ -0,0 +1,537 @@
+# Executing Actions. -*- Autotest -*-
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[User Actions.]])
+
+## ------------------ ##
+## Mid-rule actions. ##
+## ------------------ ##
+
+AT_SETUP([Mid-rule actions])
+
+# Bison once forgot the mid-rule actions. It was because the action
+# was attached to the host rule (the one with the mid-rule action),
+# instead of being attached to the empty rule dedicated to this
+# action.
+
+AT_DATA_GRAMMAR([[input.y]],
+[[%error-verbose
+%debug
+%{
+# include <stdio.h>
+# include <stdlib.h>
+ static void yyerror (const char *msg);
+ static int yylex (void);
+%}
+%%
+exp: { putchar ('0'); }
+ '1' { putchar ('1'); }
+ '2' { putchar ('2'); }
+ '3' { putchar ('3'); }
+ '4' { putchar ('4'); }
+ '5' { putchar ('5'); }
+ '6' { putchar ('6'); }
+ '7' { putchar ('7'); }
+ '8' { putchar ('8'); }
+ '9' { putchar ('9'); }
+ { putchar ('\n'); }
+ ;
+%%
+static int
+yylex (void)
+{
+ static const char *input = "123456789";
+ return *input++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+]])
+
+AT_CHECK([bison -d -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 0,
+[[0123456789
+]])
+
+AT_CLEANUP
+
+
+
+
+
+## ---------------- ##
+## Exotic Dollars. ##
+## ---------------- ##
+
+AT_SETUP([Exotic Dollars])
+
+AT_DATA_GRAMMAR([[input.y]],
+[[%error-verbose
+%debug
+%{
+# include <stdio.h>
+# include <stdlib.h>
+ static void yyerror (const char *msg);
+ static int yylex (void);
+# define USE(Var)
+%}
+
+%union
+{
+ int val;
+};
+
+%type <val> a_1 a_2 a_5
+ sum_of_the_five_previous_values
+
+%%
+exp: a_1 a_2 { $<val>$ = 3; } { $<val>$ = $<val>3 + 1; } a_5
+ sum_of_the_five_previous_values
+ {
+ USE (($1, $2, $<foo>3, $<foo>4, $5));
+ printf ("%d\n", $6);
+ }
+;
+a_1: { $$ = 1; };
+a_2: { $$ = 2; };
+a_5: { $$ = 5; };
+
+sum_of_the_five_previous_values:
+ {
+ $$ = $<val>0 + $<val>-1 + $<val>-2 + $<val>-3 + $<val>-4;
+ }
+;
+
+%%
+static int
+yylex (void)
+{
+ return EOF;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+]])
+
+AT_CHECK([bison -d -v -o input.c input.y], 0)
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 0,
+[[15
+]])
+
+AT_CLEANUP
+
+
+
+## -------------------------- ##
+## Printers and Destructors. ##
+## -------------------------- ##
+
+# _AT_CHECK_PRINTER_AND_DESTRUCTOR($1, $2, $3, $4, BISON-DIRECTIVE, UNION-FLAG)
+# -----------------------------------------------------------------------------
+m4_define([_AT_CHECK_PRINTER_AND_DESTRUCTOR],
+[# Make sure complex $n work.
+m4_if([$1$2$3], $[1]$[2]$[3], [],
+ [m4_fatal([$0: Invalid arguments: $@])])dnl
+
+# Be sure to pass all the %directives to this macro to have correct
+# helping macros. So don't put any directly in the Bison file.
+AT_BISON_OPTION_PUSHDEFS([$5])
+AT_DATA_GRAMMAR([[input.y]],
+[[%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
+]AT_LALR1_CC_IF(
+ [#define RANGE(Location) (Location).begin.line, (Location).end.line],
+ [#define RANGE(Location) (Location).first_line, (Location).last_line])
+[%}
+
+$5]
+m4_ifval([$6], [%union
+{
+ int ival;
+}])
+AT_LALR1_CC_IF([%define "global_tokens_and_yystype"])
+[
+%{
+]AT_LALR1_CC_IF([typedef yy::location YYLTYPE;
+ m4_ifval([$6], , [#define YYSTYPE int])])
+[static int yylex (]AT_LEX_FORMALS[);
+]AT_LALR1_CC_IF([], [static void yyerror (const char *msg);])
+[%}
+
+]m4_ifval([$6], [%type <ival> '(' 'x' 'y' ')' ';' thing line input])[
+
+%printer
+ {
+ ]AT_LALR1_CC_IF([debug_stream () << $$;],
+ [fprintf (yyoutput, "%d", $$)])[;
+ }
+ input line thing 'x' 'y'
+
+%destructor
+ { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); }
+ input
+
+%destructor
+ { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); }
+ line
+
+%destructor
+ { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); }
+ thing
+
+%destructor
+ { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'x'
+
+%destructor
+ { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'y'
+
+%%
+/*
+ This grammar is made to exercise error recovery.
+ "Lines" starting with `(' support error recovery, with
+ ')' as synchronizing token. Lines starting with 'x' can never
+ be recovered from if in error.
+*/
+
+input:
+ /* Nothing. */
+ {
+ $$ = 0;
+ printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2));
+ }
+;
+
+line:
+ thing thing thing ';'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3));
+ }
+| '(' error ')'
+ {
+ $$ = -1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3));
+ }
+;
+
+thing:
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1));
+ }
+;
+%%
+/* Alias to ARGV[1]. */
+const char *source = 0;
+
+static int
+yylex (]AT_LEX_FORMALS[)
+{
+ static unsigned int counter = 0;
+
+ int c = ]AT_VAL[]m4_ifval([$6], [.ival])[ = counter++;
+ /* As in BASIC, line numbers go from 10 to 10. */
+]AT_LALR1_CC_IF(
+[ AT_LOC.begin.line = AT_LOC.begin.column = 10 * c;
+ AT_LOC.end.line = AT_LOC.end.column = AT_LOC.begin.line + 9;
+],
+[ AT_LOC.first_line = AT_LOC.first_column = 10 * c;
+ AT_LOC.last_line = AT_LOC.last_column = AT_LOC.first_line + 9;
+])[
+
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
+ else
+ printf ("sending: EOF");
+ printf (" (%d@%d-%d)\n", c, RANGE (]AT_LOC[));
+ return source[c];
+}
+
+]AT_LALR1_CC_IF(
+[/* A C++ error reporting function. */
+void
+yy::parser::error (const location& l, const std::string& m)
+{
+ printf ("%d-%d: %s\n", RANGE (l), m.c_str());
+}
+
+static bool yydebug;
+int
+yyparse ()
+{
+ yy::parser parser;
+ parser.set_debug_level (yydebug);
+ return parser.parse ();
+}
+],
+[static void
+yyerror (const char *msg)
+{
+ printf ("%d-%d: %s\n", RANGE (yylloc), msg);
+}])[
+
+int
+main (int argc, const char *argv[])
+{
+ int status;
+ yydebug = !!getenv ("YYDEBUG");
+ assert (argc == 2);
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
+ {
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
+ }
+ return status;
+}
+]])
+
+AT_LALR1_CC_IF(
+ [AT_CHECK([bison -o input.cc input.y])
+ AT_COMPILE_CXX([input])],
+ [AT_CHECK([bison -o input.c input.y])
+ AT_COMPILE([input])])
+
+
+# Check the location of "empty"
+# -----------------------------
+# I.e., epsilon-reductions, as in "(x)" which ends by reducing
+# an empty "line" nterm.
+# FIXME: This location is not satisfying. Depend on the lookahead?
+AT_PARSER_CHECK([./input '(x)'], 0,
+[[sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+]])
+
+
+# Check locations in error recovery
+# ---------------------------------
+# '(y)' is an error, but can be recovered from. But what's the location
+# of the error itself ('y'), and of the resulting reduction ('(error)').
+AT_PARSER_CHECK([./input '(y)'], 0,
+[[sending: '(' (0@0-9)
+sending: 'y' (1@10-19)
+10-19: syntax error, unexpected 'y', expecting 'x'
+Freeing token 'y' (1@10-19)
+sending: ')' (2@20-29)
+line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+]])
+
+
+# Syntax errors caught by the parser
+# ----------------------------------
+# Exercise the discarding of stack top and input until `error'
+# can be reduced.
+#
+# '(', 'x', 'x', 'x', 'x', 'x', ')',
+#
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'y'
+AT_PARSER_CHECK([./input '(xxxxx)(x)(x)y'], 1,
+[[sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: 'x' (2@20-29)
+thing (2@20-29): 'x' (2@20-29)
+sending: 'x' (3@30-39)
+30-39: syntax error, unexpected 'x', expecting ')'
+Freeing nterm thing (2@20-29)
+Freeing nterm thing (1@10-19)
+Freeing token 'x' (3@30-39)
+sending: 'x' (4@40-49)
+Freeing token 'x' (4@40-49)
+sending: 'x' (5@50-59)
+Freeing token 'x' (5@50-59)
+sending: ')' (6@60-69)
+line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69)
+sending: '(' (7@70-79)
+sending: 'x' (8@80-89)
+thing (8@80-89): 'x' (8@80-89)
+sending: ')' (9@90-99)
+line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99)
+sending: '(' (10@100-109)
+sending: 'x' (11@110-119)
+thing (11@110-119): 'x' (11@110-119)
+sending: ')' (12@120-129)
+line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129)
+sending: 'y' (13@130-139)
+input (0@129-129): /* Nothing */
+input (2@100-129): line (10@100-129) input (0@129-129)
+input (2@70-129): line (7@70-99) input (2@100-129)
+input (2@0-129): line (-1@0-69) input (2@70-129)
+130-139: syntax error, unexpected 'y', expecting $end
+Freeing nterm input (2@0-129)
+Freeing token 'y' (13@130-139)
+Parsing FAILED.
+]])
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+AT_YACC_IF([
+AT_PARSER_CHECK([./input '(x)(x)(x)(x)(x)(x)(x)'], 2,
+[[sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: '(' (3@30-39)
+sending: 'x' (4@40-49)
+thing (4@40-49): 'x' (4@40-49)
+sending: ')' (5@50-59)
+line (3@30-59): '(' (3@30-39) thing (4@40-49) ')' (5@50-59)
+sending: '(' (6@60-69)
+sending: 'x' (7@70-79)
+thing (7@70-79): 'x' (7@70-79)
+sending: ')' (8@80-89)
+line (6@60-89): '(' (6@60-69) thing (7@70-79) ')' (8@80-89)
+sending: '(' (9@90-99)
+sending: 'x' (10@100-109)
+thing (10@100-109): 'x' (10@100-109)
+sending: ')' (11@110-119)
+line (9@90-119): '(' (9@90-99) thing (10@100-109) ')' (11@110-119)
+sending: '(' (12@120-129)
+sending: 'x' (13@130-139)
+thing (13@130-139): 'x' (13@130-139)
+sending: ')' (14@140-149)
+line (12@120-149): '(' (12@120-129) thing (13@130-139) ')' (14@140-149)
+sending: '(' (15@150-159)
+sending: 'x' (16@160-169)
+thing (16@160-169): 'x' (16@160-169)
+sending: ')' (17@170-179)
+line (15@150-179): '(' (15@150-159) thing (16@160-169) ')' (17@170-179)
+sending: '(' (18@180-189)
+sending: 'x' (19@190-199)
+thing (19@190-199): 'x' (19@190-199)
+sending: ')' (20@200-209)
+200-209: memory exhausted
+Freeing nterm thing (19@190-199)
+Freeing nterm line (15@150-179)
+Freeing nterm line (12@120-149)
+Freeing nterm line (9@90-119)
+Freeing nterm line (6@60-89)
+Freeing nterm line (3@30-59)
+Freeing nterm line (0@0-29)
+Parsing FAILED (status 2).
+]])
+])
+
+])
+
+
+# AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS], [UNION-FLAG], [SKIP_FLAG])
+# ---------------------------------------------------------------------------
+m4_define([AT_CHECK_PRINTER_AND_DESTRUCTOR],
+[AT_SETUP([Printers and Destructors $2: $1])
+
+$3
+_AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], $[4],
+[%error-verbose
+%debug
+%verbose
+%locations
+$1], [$2])
+
+AT_CLEANUP
+])
+
+
+AT_CHECK_PRINTER_AND_DESTRUCTOR([])
+AT_CHECK_PRINTER_AND_DESTRUCTOR([], [with union])
+
+# These tests currently fail on a Debian GNU/Linux 3.0r2 x86 host,
+# but the 2nd test succeeds on a Solaris 9 sparc hosts (Forte 7 cc).
+# Skip them until we figure out what the problem is.
+AT_CHECK_PRINTER_AND_DESTRUCTOR([%defines %skeleton "lalr1.cc"])
+AT_CHECK_PRINTER_AND_DESTRUCTOR([%defines %skeleton "lalr1.cc"], [with union])
+
+AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser])
+AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [with union])
diff --git a/tests/atconfig b/tests/atconfig
new file mode 100644
index 0000000..0f2b26b
--- /dev/null
+++ b/tests/atconfig
@@ -0,0 +1,17 @@
+# Configurable variable values for building test suites.
+# Generated by ./config.status.
+# Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
+
+# The test suite will define top_srcdir=/../.. etc.
+at_testdir='tests'
+abs_builddir='/usr/local/google/workspace/WebKit/tools/bison-2.3/tests'
+at_srcdir='.'
+abs_srcdir='/usr/local/google/workspace/WebKit/tools/bison-2.3/tests'
+at_top_srcdir='..'
+abs_top_srcdir='/usr/local/google/workspace/WebKit/tools/bison-2.3/tests/..'
+at_top_builddir='../'
+abs_top_builddir='/usr/local/google/workspace/WebKit/tools/bison-2.3/tests/../.'
+
+AUTOTEST_PATH='tests'
+
+SHELL=${CONFIG_SHELL-'/bin/sh'}
diff --git a/tests/atlocal b/tests/atlocal
new file mode 100644
index 0000000..849fd10
--- /dev/null
+++ b/tests/atlocal
@@ -0,0 +1,30 @@
+# tests/atlocal. Generated from atlocal.in by configure. -*- shell-script -*-
+# Configurable variable values for Bison test suite.
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+# We need a C compiler.
+CC='gcc'
+
+# We want no optimization.
+CFLAGS='-g '
+
+# We need `config.h'.
+CPPFLAGS="-DHAVE_CONFIG_H=1 -I$abs_top_builddir "
+
+# Is the compiler GCC?
+GCC='yes'
+
+# The C++ compiler.
+CXX='g++'
+
+# If 'exit 77'; skip all C++ tests; otherwise ':'.
+BISON_CXX_WORKS=':'
+
+# We want no optimization with C++, too.
+CXXFLAGS='-g '
+
+# Are special link options needed?
+LDFLAGS=''
+
+# Are special libraries needed?
+LIBS=' '
diff --git a/tests/atlocal.in b/tests/atlocal.in
new file mode 100644
index 0000000..15c99e6
--- /dev/null
+++ b/tests/atlocal.in
@@ -0,0 +1,30 @@
+# @configure_input@ -*- shell-script -*-
+# Configurable variable values for Bison test suite.
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+# We need a C compiler.
+CC='@CC@'
+
+# We want no optimization.
+CFLAGS='@O0CFLAGS@ @WARNING_CFLAGS@ @WERROR_CFLAGS@'
+
+# We need `config.h'.
+CPPFLAGS="-DHAVE_CONFIG_H=1 -I$abs_top_builddir @CPPFLAGS@"
+
+# Is the compiler GCC?
+GCC='@GCC@'
+
+# The C++ compiler.
+CXX='@CXX@'
+
+# If 'exit 77'; skip all C++ tests; otherwise ':'.
+BISON_CXX_WORKS='@BISON_CXX_WORKS@'
+
+# We want no optimization with C++, too.
+CXXFLAGS='@O0CXXFLAGS@ @WARNING_CXXFLAGS@ @WERROR_CFLAGS@'
+
+# Are special link options needed?
+LDFLAGS='@LDFLAGS@'
+
+# Are special libraries needed?
+LIBS='@LIBS@ @INTLLIBS@'
diff --git a/tests/bison b/tests/bison
new file mode 100755
index 0000000..82dd651
--- /dev/null
+++ b/tests/bison
@@ -0,0 +1,8 @@
+#! /bin/sh
+# tests/bison. Generated from bison.in by configure.
+# Wrapper around a non installed bison to make it work as an installed one.
+
+# Use the shipped files, not those installed.
+BISON_PKGDATADIR='/usr/local/google/workspace/WebKit/tools/bison-2.3/tests/../data'
+export BISON_PKGDATADIR
+exec $PREBISON '/usr/local/google/workspace/WebKit/tools/bison-2.3/tests/.././src/bison' ${1+"$@"}
diff --git a/tests/bison.in b/tests/bison.in
new file mode 100644
index 0000000..b90c087
--- /dev/null
+++ b/tests/bison.in
@@ -0,0 +1,8 @@
+#! @SHELL@
+# @configure_input@
+# Wrapper around a non installed bison to make it work as an installed one.
+
+# Use the shipped files, not those installed.
+BISON_PKGDATADIR='@abs_top_srcdir@/data'
+export BISON_PKGDATADIR
+exec $PREBISON '@abs_top_builddir@/src/bison' ${1+"$@"}
diff --git a/tests/c++.at b/tests/c++.at
new file mode 100644
index 0000000..e1bd906
--- /dev/null
+++ b/tests/c++.at
@@ -0,0 +1,103 @@
+# Checking the output filenames. -*- Autotest -*-
+# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[C++ Features.]])
+
+
+## ----------------------- ##
+## Doxygen Documentation. ##
+## ----------------------- ##
+
+m4_define([AT_CHECK_DOXYGEN],
+[m4_case([$1],
+ [Public], [m4_pushdef([AT_DOXYGEN_PRIVATE], [NO])],
+ [Private], [m4_pushdef([AT_DOXYGEN_PRIVATE], [YES])],
+ [m4_fatal([invalid argument: $1])])
+AT_SETUP([Doxygen $1 Documentation])
+
+AT_DATA([input.yy],
+[[%skeleton "lalr1.cc"
+%locations
+%debug
+%defines
+%%
+exp:;
+%%
+yy::parser::error (const location& l, const std::string& m)
+{
+ std::cerr << l << s << std::endl;
+}
+]])
+
+AT_CHECK([bison -o input.cc input.yy], 0)
+
+AT_DATA([Doxyfile],
+[# The PROJECT_NAME tag is a single word (or a sequence of words
+# surrounded by quotes) that should identify the project.
+PROJECT_NAME = "Bison C++ Parser"
+
+# The QUIET tag can be used to turn on/off the messages that are
+# generated by doxygen. Possible values are YES and NO. If left blank
+# NO is used.
+QUIET = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages
+# that are generated by doxygen. Possible values are YES and NO. If
+# left blank NO is used.
+WARNINGS = YES
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then
+# this flag will automatically be disabled.
+WARN_IF_UNDOCUMENTED = YES
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings
+# for potential errors in the documentation, such as not documenting
+# some parameters in a documented function, or documenting parameters
+# that don't exist or using markup commands wrongly.
+WARN_IF_DOC_ERROR = YES
+# The WARN_FORMAT tag determines the format of the warning messages
+# that doxygen can produce. The string should contain the $file,
+# $line, and $text tags, which will be replaced by the file and line
+# number from which the warning originated and the warning text.
+WARN_FORMAT = "$file:$line: $text"
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all
+# entities in documentation are documented, even if no documentation
+# was available. Private class members and static file members will
+# be hidden unless the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set
+# to YES
+EXTRACT_ALL = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a
+# class will be included in the documentation.
+EXTRACT_PRIVATE = AT_DOXYGEN_PRIVATE
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file
+# will be included in the documentation.
+EXTRACT_STATIC = AT_DOXYGEN_PRIVATE
+])
+
+AT_CHECK([doxygen --version || exit 77], 0, ignore)
+AT_CHECK([doxygen], 0, [], [ignore])
+
+AT_CLEANUP
+
+m4_popdef([AT_DOXYGEN_PRIVATE])
+])# AT_CHECK_DOXYGEN
+
+AT_CHECK_DOXYGEN([Public])
+AT_CHECK_DOXYGEN([Private])
diff --git a/tests/calc.at b/tests/calc.at
new file mode 100644
index 0000000..dedf568
--- /dev/null
+++ b/tests/calc.at
@@ -0,0 +1,653 @@
+# Simple calculator. -*- Autotest -*-
+
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+## ---------------------------------------------------- ##
+## Compile the grammar described in the documentation. ##
+## ---------------------------------------------------- ##
+
+
+# ------------------------- #
+# Helping Autotest macros. #
+# ------------------------- #
+
+
+# _AT_DATA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES])
+# -----------------------------------------------
+# Produce `calc.y'. Don't call this macro directly, because it contains
+# some occurrences of `$1' etc. which will be interpreted by m4. So
+# you should call it with $1, $2, and $3 as arguments, which is what
+# AT_DATA_CALC_Y does.
+m4_define([_AT_DATA_CALC_Y],
+[m4_if([$1$2$3], $[1]$[2]$[3], [],
+ [m4_fatal([$0: Invalid arguments: $@])])dnl
+AT_DATA_GRAMMAR([calc.y],
+[[/* Infix notation calculator--calc */
+]$4
+AT_SKEL_CC_IF(
+[%define "global_tokens_and_yystype"])[
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+]AT_SKEL_CC_IF(
+[#ifndef YYLTYPE
+[#] define YYLTYPE AT_NAME_PREFIX::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+],
+[/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
+ AT_PARAM_IF([semantic_value *result, int *count, ])
+ const char *s
+ );])[
+static int yylex (]AT_LEX_FORMALS[);
+static int get_char (]AT_LEX_FORMALS[);
+static void unget_char (]AT_LEX_PRE_FORMALS[ int c);
+%}
+
+]AT_SKEL_CC_IF(
+[/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+])[
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { ]AT_PARAM_IF([++*count; ++global_count;])[ }
+;
+
+line:
+ '\n'
+| exp '\n' { ]AT_PARAM_IF([*result = global_result = $1], [USE ($1)])[; }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+]AT_SKEL_CC_IF(
+[/* A C++ error reporting function. */
+void
+AT_NAME_PREFIX::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl;
+}
+
+int
+yyparse (AT_PARAM_IF([semantic_value *result, int *count]))
+{
+ AT_NAME_PREFIX::parser parser[]AT_PARAM_IF([ (result, count)]);
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+],
+[static void
+yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
+ AT_PARAM_IF([semantic_value *result, int *count, ])
+ const char *s)
+{
+AT_PARAM_IF([(void) result; (void) count;])
+AT_YYERROR_SEES_LOC_IF([
+ fprintf (stderr, "%d.%d",
+ AT_LOC.first_line, AT_LOC.first_column);
+ if (AT_LOC.first_line != AT_LOC.last_line)
+ fprintf (stderr, "-%d.%d",
+ AT_LOC.last_line, AT_LOC.last_column - 1);
+ else if (AT_LOC.first_column != AT_LOC.last_column - 1)
+ fprintf (stderr, "-%d",
+ AT_LOC.last_column - 1);
+ fprintf (stderr, ": ");])
+ fprintf (stderr, "%s\n", s);
+}])[
+
+
+]AT_LOCATION_IF([
+static YYLTYPE last_yylloc;
+])[
+static int
+get_char (]AT_LEX_FORMALS[)
+{
+ int res = getc (input);
+ ]AT_USE_LEX_ARGS[;
+]AT_LOCATION_IF([
+ last_yylloc = AT_LOC;
+ if (res == '\n')
+ {
+ AT_LOC.last_line++;
+ AT_LOC.last_column = 0;
+ }
+ else
+ AT_LOC.last_column++;
+])[
+ return res;
+}
+
+
+static void
+unget_char (]AT_LEX_PRE_FORMALS[ int c)
+{
+ ]AT_USE_LEX_ARGS[;
+]AT_LOCATION_IF([
+ /* Wrong when C == `\n'. */
+ AT_LOC = last_yylloc;
+])[
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (]AT_LEX_FORMALS[)
+{
+ int c = get_char (]AT_LEX_ARGS[);
+ int sign = 1;
+ int n = 0;
+
+ ]AT_USE_LEX_ARGS[;
+ if (c == '-')
+ {
+ c = get_char (]AT_LEX_ARGS[);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (]AT_LEX_ARGS[);
+ }
+
+ unget_char (]AT_LEX_PRE_ARGS[ c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (]AT_LEX_FORMALS[)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+]AT_LOCATION_IF([
+ AT_LOC.last_column = 0;
+ AT_LOC.last_line = 1;
+])[
+ }
+
+]AT_LOCATION_IF([
+ AT_LOC.first_column = AT_LOC.last_column;
+ AT_LOC.first_line = AT_LOC.last_line;
+])[
+
+ /* Skip white space. */
+ while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t')
+ {
+]AT_LOCATION_IF(
+[ AT_LOC.first_column = AT_LOC.last_column;
+ AT_LOC.first_line = AT_LOC.last_line;
+])[
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (]AT_LEX_PRE_ARGS[ c);
+ ]AT_VAL[.ival = read_signed_integer (]AT_LEX_ARGS[);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+]AT_SKEL_CC_IF([], [m4_bmatch([$4], [%debug],
+[ yydebug = 1;])])[
+ status = yyparse (]AT_PARAM_IF([&result, &count])[);
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+]])
+])# _AT_DATA_CALC_Y
+
+
+# AT_DATA_CALC_Y([BISON-OPTIONS])
+# -------------------------------
+# Produce `calc.y'.
+m4_define([AT_DATA_CALC_Y],
+[_AT_DATA_CALC_Y($[1], $[2], $[3], [$1])
+])
+
+
+
+# _AT_CHECK_CALC(BISON-OPTIONS, INPUT, [NUM-STDERR-LINES])
+# --------------------------------------------------------
+# Run `calc' on INPUT and expect no STDOUT nor STDERR.
+#
+# If BISON-OPTIONS contains `%debug' but not `%glr-parser', then
+#
+# NUM-STDERR-LINES is the number of expected lines on stderr.
+# Currently this is ignored, though, since the output format is fluctuating.
+#
+# We don't count GLR's traces yet, since its traces are somewhat
+# different from LALR's.
+m4_define([_AT_CHECK_CALC],
+[AT_DATA([[input]],
+[[$2
+]])
+AT_PARSER_CHECK([./calc input], 0, [], [stderr])
+])
+
+
+# _AT_CHECK_CALC_ERROR(BISON-OPTIONS, EXIT-STATUS, INPUT,
+# [NUM-STDERR-LINES],
+# [VERBOSE-AND-LOCATED-ERROR-MESSAGE])
+# ---------------------------------------------------------
+# Run `calc' on INPUT, and expect a `syntax error' message.
+#
+# If INPUT starts with a slash, it is used as absolute input file name,
+# otherwise as contents.
+#
+# NUM-STDERR-LINES is the number of expected lines on stderr.
+# Currently this is ignored, though, since the output format is fluctuating.
+#
+# If BISON-OPTIONS contains `%location', then make sure the ERROR-LOCATION
+# is correctly output on stderr.
+#
+# If BISON-OPTIONS contains `%error-verbose', then make sure the
+# IF-YYERROR-VERBOSE message is properly output after `syntax error, '
+# on STDERR.
+#
+# If BISON-OPTIONS contains `%debug' but not `%glr', then NUM-STDERR-LINES
+# is the number of expected lines on stderr.
+m4_define([_AT_CHECK_CALC_ERROR],
+[m4_bmatch([$3], [^/],
+ [AT_PARSER_CHECK([./calc $3], $2, [], [stderr])],
+ [AT_DATA([[input]],
+[[$3
+]])
+AT_PARSER_CHECK([./calc input], $2, [], [stderr])])
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[[0-9$]]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+AT_DATA([[expout]],
+[$5
+])
+# 3. If locations are not used, remove them.
+AT_YYERROR_SEES_LOC_IF([],
+[[sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout]])
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+m4_bmatch([$1], [%error-verbose], [],
+[[sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout]])
+# 5. Check
+AT_CHECK([cat stderr], 0, [expout])
+])
+
+
+# AT_CHECK_CALC([BISON-OPTIONS, [EXPECTED-TO-FAIL]])
+# --------------------------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# BISON-OPTIONS, and performs several tests over the parser.
+# However, if EXPECTED-TO-FAIL is nonempty, this test is expected to fail.
+m4_define([AT_CHECK_CALC],
+[# We use integers to avoid dependencies upon the precision of doubles.
+AT_SETUP([Calculator $1])
+
+m4_ifval([$2], [AT_CHECK([exit 77])])
+
+AT_BISON_OPTION_PUSHDEFS([$1])
+
+AT_DATA_CALC_Y([$1])
+
+AT_SKEL_CC_IF(
+ [AT_CHECK([bison -o calc.cc calc.y])
+ AT_COMPILE_CXX([calc])],
+ [AT_CHECK([bison -o calc.c calc.y])
+ AT_COMPILE([calc])])
+
+# Test the priorities.
+_AT_CHECK_CALC([$1],
+[1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64],
+ [842])
+
+# Some syntax errors.
+_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [15],
+ [1.2: syntax error, unexpected number])
+_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [20],
+ [1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
+_AT_CHECK_CALC_ERROR([$1], [1], [error], [5],
+ [1.0: syntax error, unexpected $undefined])
+_AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [30],
+ [1.6: syntax error, unexpected '='])
+_AT_CHECK_CALC_ERROR([$1], [1],
+ [
++1],
+ [20],
+ [2.0: syntax error, unexpected '+'])
+# Exercise error messages with EOF: work on an empty file.
+_AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [4],
+ [1.0: syntax error, unexpected end of input])
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+_AT_CHECK_CALC_ERROR([$1], [0],
+ [() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1],
+ [250],
+[1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1])
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [102],
+[1.9: syntax error, unexpected number
+calc: error: 2222 != 1])
+_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [113],
+[1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1])
+AT_BISON_OPTION_POPDEFS
+
+AT_CLEANUP
+])# AT_CHECK_CALC
+
+
+
+
+# ------------------------ #
+# Simple LALR Calculator. #
+# ------------------------ #
+
+AT_BANNER([[Simple LALR(1) Calculator.]])
+
+# AT_CHECK_CALC_LALR([BISON-OPTIONS])
+# -----------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# BISON-OPTIONS, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_LALR],
+[AT_CHECK_CALC($@)])
+
+AT_CHECK_CALC_LALR()
+
+AT_CHECK_CALC_LALR([%defines])
+AT_CHECK_CALC_LALR([%locations])
+AT_CHECK_CALC_LALR([%name-prefix="calc"])
+AT_CHECK_CALC_LALR([%verbose])
+AT_CHECK_CALC_LALR([%yacc])
+AT_CHECK_CALC_LALR([%error-verbose])
+
+AT_CHECK_CALC_LALR([%pure-parser %locations])
+AT_CHECK_CALC_LALR([%error-verbose %locations])
+
+AT_CHECK_CALC_LALR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_LALR([%debug])
+AT_CHECK_CALC_LALR([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
+
+
+# ----------------------- #
+# Simple GLR Calculator. #
+# ----------------------- #
+
+AT_BANNER([[Simple GLR Calculator.]])
+
+# AT_CHECK_CALC_GLR([BISON-OPTIONS])
+# ----------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# BISON-OPTIONS and %glr-parser, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_GLR],
+[AT_CHECK_CALC([%glr-parser] $@)])
+
+
+AT_CHECK_CALC_GLR()
+
+AT_CHECK_CALC_GLR([%defines])
+AT_CHECK_CALC_GLR([%locations])
+AT_CHECK_CALC_GLR([%name-prefix="calc"])
+AT_CHECK_CALC_GLR([%verbose])
+AT_CHECK_CALC_GLR([%yacc])
+AT_CHECK_CALC_GLR([%error-verbose])
+
+AT_CHECK_CALC_GLR([%pure-parser %locations])
+AT_CHECK_CALC_GLR([%error-verbose %locations])
+
+AT_CHECK_CALC_GLR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_GLR([%debug])
+AT_CHECK_CALC_GLR([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
+
+
+# ----------------------------- #
+# Simple LALR1 C++ Calculator. #
+# ----------------------------- #
+
+AT_BANNER([[Simple LALR(1) C++ Calculator.]])
+
+# AT_CHECK_CALC_LALR1_CC([BISON-OPTIONS])
+# ---------------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# the C++ skeleton, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_LALR1_CC],
+[AT_CHECK_CALC([%skeleton "lalr1.cc" %defines %locations] $@)])
+
+AT_CHECK_CALC_LALR1_CC([])
+AT_CHECK_CALC_LALR1_CC([%error-verbose %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
+
+
+
+# --------------------------- #
+# Simple GLR C++ Calculator. #
+# --------------------------- #
+
+AT_BANNER([[Simple GLR C++ Calculator.]])
+
+# AT_CHECK_CALC_GLR_CC([BISON-OPTIONS])
+# -------------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# the GLR C++ skeleton, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_GLR_CC],
+[AT_CHECK_CALC([%skeleton "glr.cc" %defines %locations] $@)])
+
+#AT_CHECK_CALC_GLR_CC([])
+#AT_CHECK_CALC_GLR_CC([%error-verbose %name-prefix="calc" %verbose %yacc])
+
+# AT_CHECK_CALC_GLR_CC([%debug])
+#AT_CHECK_CALC_GLR_CC([%error-verbose %debug %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_GLR_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_GLR_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
diff --git a/tests/conflicts.at b/tests/conflicts.at
new file mode 100644
index 0000000..1cbf23a
--- /dev/null
+++ b/tests/conflicts.at
@@ -0,0 +1,620 @@
+# Exercising Bison on conflicts. -*- Autotest -*-
+
+# Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Conflicts.]])
+
+
+## ---------------- ##
+## S/R in initial. ##
+## ---------------- ##
+
+# I once hacked Bison in such a way that it lost its reductions on the
+# initial state (because it was confusing it with the last state). It
+# took me a while to strip down my failures to this simple case. So
+# make sure it finds the s/r conflict below.
+
+AT_SETUP([S/R in initial])
+
+AT_DATA([[input.y]],
+[[%expect 1
+%%
+exp: e 'e';
+e: 'e' | /* Nothing. */;
+]])
+
+AT_CHECK([bison -o input.c input.y], 0, [],
+[[input.y:4.9: warning: rule never reduced because of conflicts: e: /* empty */
+]])
+
+AT_CLEANUP
+
+
+## ------------------- ##
+## %nonassoc and eof. ##
+## ------------------- ##
+
+AT_SETUP([%nonassoc and eof])
+
+AT_DATA_GRAMMAR([input.y],
+[[
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+#define YYERROR_VERBOSE 1
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+/* The current argument. */
+static const char *input = NULL;
+
+static int
+yylex (void)
+{
+ /* No token stands for end of file. */
+ if (input && *input)
+ return *input++;
+ else
+ return 0;
+}
+
+%}
+
+%nonassoc '<' '>'
+
+%%
+expr: expr '<' expr
+ | expr '>' expr
+ | '0'
+ ;
+%%
+int
+main (int argc, const char *argv[])
+{
+ if (argc > 1)
+ input = argv[1];
+ return yyparse ();
+}
+]])
+
+# Specify the output files to avoid problems on different file systems.
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input])
+
+AT_PARSER_CHECK([./input '0<0'])
+# FIXME: This is an actual bug, but a new one, in the sense that
+# no one has ever spotted it! The messages are *wrong*: there should
+# be nothing there, it should be expected eof.
+AT_PARSER_CHECK([./input '0<0<0'], [1], [],
+ [syntax error, unexpected '<', expecting '<' or '>'
+])
+
+AT_PARSER_CHECK([./input '0>0'])
+AT_PARSER_CHECK([./input '0>0>0'], [1], [],
+ [syntax error, unexpected '>', expecting '<' or '>'
+])
+
+AT_PARSER_CHECK([./input '0<0>0'], [1], [],
+ [syntax error, unexpected '>', expecting '<' or '>'
+])
+
+AT_CLEANUP
+
+
+
+## ------------------------- ##
+## Unresolved SR Conflicts. ##
+## ------------------------- ##
+
+AT_SETUP([Unresolved SR Conflicts])
+
+AT_KEYWORDS([report])
+
+AT_DATA([input.y],
+[[%token NUM OP
+%%
+exp: exp OP exp | NUM;
+]])
+
+AT_CHECK([bison -o input.c --report=all input.y], 0, [],
+[input.y: conflicts: 1 shift/reduce
+])
+
+# Check the contents of the report.
+AT_CHECK([cat input.output], [],
+[[State 5 conflicts: 1 shift/reduce
+
+
+Grammar
+
+ 0 $accept: exp $end
+
+ 1 exp: exp OP exp
+ 2 | NUM
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+error (256)
+NUM (258) 2
+OP (259) 1
+
+
+Nonterminals, with rules where they appear
+
+$accept (5)
+ on left: 0
+exp (6)
+ on left: 1 2, on right: 0 1
+
+
+state 0
+
+ 0 $accept: . exp $end
+ 1 exp: . exp OP exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 2
+
+
+state 1
+
+ 2 exp: NUM .
+
+ $default reduce using rule 2 (exp)
+
+
+state 2
+
+ 0 $accept: exp . $end
+ 1 exp: exp . OP exp
+
+ $end shift, and go to state 3
+ OP shift, and go to state 4
+
+
+state 3
+
+ 0 $accept: exp $end .
+
+ $default accept
+
+
+state 4
+
+ 1 exp: . exp OP exp
+ 1 | exp OP . exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 5
+
+
+state 5
+
+ 1 exp: exp . OP exp [$end, OP]
+ 1 | exp OP exp . [$end, OP]
+
+ OP shift, and go to state 4
+
+ OP [reduce using rule 1 (exp)]
+ $default reduce using rule 1 (exp)
+]])
+
+AT_CLEANUP
+
+
+
+## ----------------------- ##
+## Resolved SR Conflicts. ##
+## ----------------------- ##
+
+AT_SETUP([Resolved SR Conflicts])
+
+AT_KEYWORDS([report])
+
+AT_DATA([input.y],
+[[%token NUM OP
+%left OP
+%%
+exp: exp OP exp | NUM;
+]])
+
+AT_CHECK([bison -o input.c --report=all input.y])
+
+# Check the contents of the report.
+AT_CHECK([cat input.output], [],
+[[Grammar
+
+ 0 $accept: exp $end
+
+ 1 exp: exp OP exp
+ 2 | NUM
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+error (256)
+NUM (258) 2
+OP (259) 1
+
+
+Nonterminals, with rules where they appear
+
+$accept (5)
+ on left: 0
+exp (6)
+ on left: 1 2, on right: 0 1
+
+
+state 0
+
+ 0 $accept: . exp $end
+ 1 exp: . exp OP exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 2
+
+
+state 1
+
+ 2 exp: NUM .
+
+ $default reduce using rule 2 (exp)
+
+
+state 2
+
+ 0 $accept: exp . $end
+ 1 exp: exp . OP exp
+
+ $end shift, and go to state 3
+ OP shift, and go to state 4
+
+
+state 3
+
+ 0 $accept: exp $end .
+
+ $default accept
+
+
+state 4
+
+ 1 exp: . exp OP exp
+ 1 | exp OP . exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 5
+
+
+state 5
+
+ 1 exp: exp . OP exp [$end, OP]
+ 1 | exp OP exp . [$end, OP]
+
+ $default reduce using rule 1 (exp)
+
+ Conflict between rule 1 and token OP resolved as reduce (%left OP).
+]])
+
+AT_CLEANUP
+
+
+## -------------------------------- ##
+## Defaulted Conflicted Reduction. ##
+## -------------------------------- ##
+
+# When there are RR conflicts, some rules are disabled. Usually it is
+# simply displayed as:
+#
+# $end reduce using rule 3 (num)
+# $end [reduce using rule 4 (id)]
+#
+# But when `reduce 3' is the default action, we'd produce:
+#
+# $end [reduce using rule 4 (id)]
+# $default reduce using rule 3 (num)
+#
+# In this precise case (a reduction is masked by the default
+# reduction), we make the `reduce 3' explicit:
+#
+# $end reduce using rule 3 (num)
+# $end [reduce using rule 4 (id)]
+# $default reduce using rule 3 (num)
+#
+# Maybe that's not the best display, but then, please propose something
+# else.
+
+AT_SETUP([Defaulted Conflicted Reduction])
+AT_KEYWORDS([report])
+
+AT_DATA([input.y],
+[[%%
+exp: num | id;
+num: '0';
+id : '0';
+%%
+]])
+
+AT_CHECK([bison -o input.c --report=all input.y], 0, [],
+[[input.y: conflicts: 1 reduce/reduce
+input.y:4.6-8: warning: rule never reduced because of conflicts: id: '0'
+]])
+
+# Check the contents of the report.
+AT_CHECK([cat input.output], [],
+[[Rules never reduced
+
+ 4 id: '0'
+
+
+State 1 conflicts: 1 reduce/reduce
+
+
+Grammar
+
+ 0 $accept: exp $end
+
+ 1 exp: num
+ 2 | id
+
+ 3 num: '0'
+
+ 4 id: '0'
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+'0' (48) 3 4
+error (256)
+
+
+Nonterminals, with rules where they appear
+
+$accept (4)
+ on left: 0
+exp (5)
+ on left: 1 2, on right: 0
+num (6)
+ on left: 3, on right: 1
+id (7)
+ on left: 4, on right: 2
+
+
+state 0
+
+ 0 $accept: . exp $end
+ 1 exp: . num
+ 2 | . id
+ 3 num: . '0'
+ 4 id: . '0'
+
+ '0' shift, and go to state 1
+
+ exp go to state 2
+ num go to state 3
+ id go to state 4
+
+
+state 1
+
+ 3 num: '0' . [$end]
+ 4 id: '0' . [$end]
+
+ $end reduce using rule 3 (num)
+ $end [reduce using rule 4 (id)]
+ $default reduce using rule 3 (num)
+
+
+state 2
+
+ 0 $accept: exp . $end
+
+ $end shift, and go to state 5
+
+
+state 3
+
+ 1 exp: num .
+
+ $default reduce using rule 1 (exp)
+
+
+state 4
+
+ 2 exp: id .
+
+ $default reduce using rule 2 (exp)
+
+
+state 5
+
+ 0 $accept: exp $end .
+
+ $default accept
+]])
+
+AT_CLEANUP
+
+
+
+
+## -------------------- ##
+## %expect not enough. ##
+## -------------------- ##
+
+AT_SETUP([%expect not enough])
+
+AT_DATA([input.y],
+[[%token NUM OP
+%expect 0
+%%
+exp: exp OP exp | NUM;
+]])
+
+AT_CHECK([bison -o input.c input.y], 1, [],
+[input.y: conflicts: 1 shift/reduce
+input.y: expected 0 shift/reduce conflicts
+])
+AT_CLEANUP
+
+
+## --------------- ##
+## %expect right. ##
+## --------------- ##
+
+AT_SETUP([%expect right])
+
+AT_DATA([input.y],
+[[%token NUM OP
+%expect 1
+%%
+exp: exp OP exp | NUM;
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_CLEANUP
+
+
+## ------------------ ##
+## %expect too much. ##
+## ------------------ ##
+
+AT_SETUP([%expect too much])
+
+AT_DATA([input.y],
+[[%token NUM OP
+%expect 2
+%%
+exp: exp OP exp | NUM;
+]])
+
+AT_CHECK([bison -o input.c input.y], 1, [],
+[input.y: conflicts: 1 shift/reduce
+input.y: expected 2 shift/reduce conflicts
+])
+AT_CLEANUP
+
+
+## ------------------------------ ##
+## %expect with reduce conflicts ##
+## ------------------------------ ##
+
+AT_SETUP([%expect with reduce conflicts])
+
+AT_DATA([input.y],
+[[%expect 0
+%%
+program: a 'a' | a a;
+a: 'a';
+]])
+
+AT_CHECK([bison -o input.c input.y], 1, [],
+[input.y: conflicts: 1 reduce/reduce
+input.y: expected 0 reduce/reduce conflicts
+])
+AT_CLEANUP
+
+
+## ------------------------------- ##
+## %no-default-prec without %prec ##
+## ------------------------------- ##
+
+AT_SETUP([%no-default-prec without %prec])
+
+AT_DATA([[input.y]],
+[[%left '+'
+%left '*'
+
+%%
+
+%no-default-prec;
+
+e: e '+' e
+ | e '*' e
+ | '0'
+ ;
+]])
+
+AT_CHECK([bison -o input.c input.y], 0, [],
+[[input.y: conflicts: 4 shift/reduce
+]])
+AT_CLEANUP
+
+
+## ---------------------------- ##
+## %no-default-prec with %prec ##
+## ---------------------------- ##
+
+AT_SETUP([%no-default-prec with %prec])
+
+AT_DATA([[input.y]],
+[[%left '+'
+%left '*'
+
+%%
+
+%no-default-prec;
+
+e: e '+' e %prec '+'
+ | e '*' e %prec '*'
+ | '0'
+ ;
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_CLEANUP
+
+
+## ---------------- ##
+## %default-prec ##
+## ---------------- ##
+
+AT_SETUP([%default-prec])
+
+AT_DATA([[input.y]],
+[[%left '+'
+%left '*'
+
+%%
+
+%default-prec;
+
+e: e '+' e
+ | e '*' e
+ | '0'
+ ;
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_CLEANUP
diff --git a/tests/cxx-type.at b/tests/cxx-type.at
new file mode 100644
index 0000000..b716a1d
--- /dev/null
+++ b/tests/cxx-type.at
@@ -0,0 +1,471 @@
+# Checking GLR Parsing. -*- Autotest -*-
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[C++ Type Syntax (GLR).]])
+
+# _AT_TEST_GLR_CXXTYPES(DECL, RESOLVE1, RESOLVE2)
+# -----------------------------------------------
+# Store into types.y the calc program, with DECL inserted as a declaration,
+# and with RESOLVE1 and RESOLVE2 as annotations on the conflicted rule for
+# stmt. Then compile the result.
+m4_define([_AT_TEST_GLR_CXXTYPES],
+[
+AT_BISON_OPTION_PUSHDEFS([$1])
+
+AT_DATA_GRAMMAR([types.y],
+[[/* Simplified C++ Type and Expression Grammar. */
+
+$1
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+]m4_bmatch([$2], [stmtMerge],
+[ static YYSTYPE stmtMerge (YYSTYPE x0, YYSTYPE x1);])[
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;]AT_LOCATION_IF([
+ printf ("%d.%d-%d.%d: ",
+ @2.first_line, @2.first_column,
+ @2.last_line, @2.last_column);])[
+ output = node_to_string (]$[2);
+ printf ("%s\n", output);
+ free (output);
+ free_node (]$[2);
+ }
+ ;
+
+stmt : expr ';' $2 { $$ = ]$[1; }
+ | decl $3
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", ]$[3, ]$[1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", ]$[1, ]$[3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", ]$[1, ]$[3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", ]$[1, ]$[2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", ]$[1,
+ ]$[2, ]$[4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = ]$[2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+]]
+m4_bmatch([$2], [stmtMerge],
+[[static YYSTYPE
+stmtMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ return new_nterm ("<OR>(%s,%s)", x0, x1, 0);
+}
+]])
+)
+
+AT_DATA([test-input],
+[[
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+]])
+
+AT_CHECK([bison -o types.c types.y], 0, [], ignore)
+AT_COMPILE([types])
+AT_BISON_OPTION_POPDEFS
+])
+
+m4_define([_AT_RESOLVED_GLR_OUTPUT],
+[[+(z,q)
+<declare>(T,x)
+<init-declare>(T,x,y)
+=(x,y)
++(<cast>(x,T),y)
+<declare>(T,x)
+<init-declare>(T,y,+(z,q))
+<error>
++(z,q)
+]])
+
+m4_define([_AT_RESOLVED_GLR_OUTPUT_WITH_LOC],
+[[3.0-3.5: +(z,q)
+5.0-5.3: <declare>(T,x)
+7.0-7.7: <init-declare>(T,x,y)
+9.0-9.5: =(x,y)
+11.0-11.9: +(<cast>(x,T),y)
+13.0-13.5: <declare>(T,x)
+15.0-15.13: <init-declare>(T,y,+(z,q))
+17.0-17.15: <error>
+19.0-19.5: +(z,q)
+]])
+
+m4_define([_AT_AMBIG_GLR_OUTPUT],
+[[+(z,q)
+<declare>(T,x)
+<init-declare>(T,x,y)
+=(x,y)
++(<cast>(x,T),y)
+<OR>(<declare>(T,x),<cast>(x,T))
+<OR>(<init-declare>(T,y,+(z,q)),=(<cast>(y,T),+(z,q)))
+<error>
++(z,q)
+]])
+
+m4_define([_AT_AMBIG_GLR_OUTPUT_WITH_LOC],
+[[3.0-3.5: +(z,q)
+5.0-5.3: <declare>(T,x)
+7.0-7.7: <init-declare>(T,x,y)
+9.0-9.5: =(x,y)
+11.0-11.9: +(<cast>(x,T),y)
+13.0-13.5: <OR>(<declare>(T,x),<cast>(x,T))
+15.0-15.13: <OR>(<init-declare>(T,y,+(z,q)),=(<cast>(y,T),+(z,q)))
+17.0-17.15: <error>
+19.0-19.5: +(z,q)
+]])
+
+m4_define([_AT_GLR_STDERR],
+[[syntax error
+]])
+
+m4_define([_AT_VERBOSE_GLR_STDERR],
+[[syntax error, unexpected ID, expecting '=' or '+' or ')'
+]])
+
+## ---------------------------------------------------- ##
+## Compile the grammar described in the documentation. ##
+## ---------------------------------------------------- ##
+
+AT_SETUP([GLR: Resolve ambiguity, impure, no locations])
+_AT_TEST_GLR_CXXTYPES([],
+ [%dprec 1], [%dprec 2])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_RESOLVED_GLR_OUTPUT, _AT_GLR_STDERR)
+AT_CLEANUP
+
+AT_SETUP([GLR: Resolve ambiguity, impure, locations])
+_AT_TEST_GLR_CXXTYPES([%locations],[%dprec 1],[%dprec 2])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
+AT_CLEANUP
+
+AT_SETUP([GLR: Resolve ambiguity, pure, no locations])
+_AT_TEST_GLR_CXXTYPES([%pure-parser],
+ [%dprec 1], [%dprec 2])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_RESOLVED_GLR_OUTPUT, _AT_GLR_STDERR)
+AT_CLEANUP
+
+AT_SETUP([GLR: Resolve ambiguity, pure, locations])
+_AT_TEST_GLR_CXXTYPES([%pure-parser %locations],
+ [%dprec 1], [%dprec 2])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
+AT_CLEANUP
+
+AT_SETUP([GLR: Merge conflicting parses, impure, no locations])
+_AT_TEST_GLR_CXXTYPES([],
+ [%merge <stmtMerge>], [%merge <stmtMerge>])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_AMBIG_GLR_OUTPUT, _AT_GLR_STDERR)
+AT_CLEANUP
+
+AT_SETUP([GLR: Merge conflicting parses, impure, locations])
+_AT_TEST_GLR_CXXTYPES([%locations],
+ [%merge <stmtMerge>], [%merge <stmtMerge>])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
+AT_CLEANUP
+
+AT_SETUP([GLR: Merge conflicting parses, pure, no locations])
+_AT_TEST_GLR_CXXTYPES([%pure-parser],
+ [%merge <stmtMerge>], [%merge <stmtMerge>])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_AMBIG_GLR_OUTPUT, _AT_GLR_STDERR)
+AT_CLEANUP
+AT_SETUP([GLR: Merge conflicting parses, pure, locations])
+_AT_TEST_GLR_CXXTYPES([%pure-parser %locations],
+ [%merge <stmtMerge>],[%merge <stmtMerge>])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
+AT_CLEANUP
+
+AT_SETUP([GLR: Verbose messages, resolve ambiguity, impure, no locations])
+_AT_TEST_GLR_CXXTYPES([%error-verbose],
+ [%merge <stmtMerge>], [%merge <stmtMerge>])
+AT_PARSER_CHECK([[./types test-input]], 0,
+ _AT_AMBIG_GLR_OUTPUT, _AT_VERBOSE_GLR_STDERR)
+AT_CLEANUP
diff --git a/tests/existing.at b/tests/existing.at
new file mode 100644
index 0000000..9db625a
--- /dev/null
+++ b/tests/existing.at
@@ -0,0 +1,1525 @@
+# Exercising Bison on actual grammars. -*- Autotest -*-
+
+# Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2002, 2003, 2004, 2005
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Existing Grammars.]])
+## ----------------- ##
+## GNU AWK Grammar. ##
+## ----------------- ##
+
+AT_SETUP([GNU AWK Grammar])
+
+# We have been careful to strip all the actions excepts the
+# mid-rule actions. We rely on %expect to check that there are
+# indeed 65 SR conflicts.
+#
+# Bison was once wrong, due to an incorrect computation of nullable.
+# It reported 485 SR conflicts!
+
+AT_DATA([[input.y]],
+[[%expect 65
+
+%token FUNC_CALL NAME REGEXP
+%token ERROR
+%token YNUMBER YSTRING
+%token RELOP APPEND_OP
+%token ASSIGNOP MATCHOP NEWLINE CONCAT_OP
+%token LEX_BEGIN LEX_END LEX_IF LEX_ELSE LEX_RETURN LEX_DELETE
+%token LEX_WHILE LEX_DO LEX_FOR LEX_BREAK LEX_CONTINUE
+%token LEX_PRINT LEX_PRINTF LEX_NEXT LEX_EXIT LEX_FUNCTION
+%token LEX_GETLINE LEX_NEXTFILE
+%token LEX_IN
+%token LEX_AND LEX_OR INCREMENT DECREMENT
+%token LEX_BUILTIN LEX_LENGTH
+
+/* Lowest to highest */
+%right ASSIGNOP
+%right '?' ':'
+%left LEX_OR
+%left LEX_AND
+%left LEX_GETLINE
+%nonassoc LEX_IN
+%left FUNC_CALL LEX_BUILTIN LEX_LENGTH
+%nonassoc ','
+%nonassoc MATCHOP
+%nonassoc RELOP '<' '>' '|' APPEND_OP TWOWAYIO
+%left CONCAT_OP
+%left YSTRING YNUMBER
+%left '+' '-'
+%left '*' '/' '%'
+%right '!' UNARY
+%right '^'
+%left INCREMENT DECREMENT
+%left '$'
+%left '(' ')'
+%%
+
+start
+ : opt_nls program opt_nls
+ ;
+
+program
+ : rule
+ | program rule
+ | error
+ | program error
+ | /* empty */
+ ;
+
+rule
+ : LEX_BEGIN {} action
+ | LEX_END {} action
+ | LEX_BEGIN statement_term
+ | LEX_END statement_term
+ | pattern action
+ | action
+ | pattern statement_term
+ | function_prologue function_body
+ ;
+
+func_name
+ : NAME
+ | FUNC_CALL
+ | lex_builtin
+ ;
+
+lex_builtin
+ : LEX_BUILTIN
+ | LEX_LENGTH
+ ;
+
+function_prologue
+ : LEX_FUNCTION {} func_name '(' opt_param_list r_paren opt_nls
+ ;
+
+function_body
+ : l_brace statements r_brace opt_semi opt_nls
+ | l_brace r_brace opt_semi opt_nls
+ ;
+
+pattern
+ : exp
+ | exp ',' exp
+ ;
+
+regexp
+ /*
+ * In this rule, want_regexp tells yylex that the next thing
+ * is a regexp so it should read up to the closing slash.
+ */
+ : '/' {} REGEXP '/'
+ ;
+
+action
+ : l_brace statements r_brace opt_semi opt_nls
+ | l_brace r_brace opt_semi opt_nls
+ ;
+
+statements
+ : statement
+ | statements statement
+ | error
+ | statements error
+ ;
+
+statement_term
+ : nls
+ | semi opt_nls
+ ;
+
+statement
+ : semi opt_nls
+ | l_brace r_brace
+ | l_brace statements r_brace
+ | if_statement
+ | LEX_WHILE '(' exp r_paren opt_nls statement
+ | LEX_DO opt_nls statement LEX_WHILE '(' exp r_paren opt_nls
+ | LEX_FOR '(' NAME LEX_IN NAME r_paren opt_nls statement
+ | LEX_FOR '(' opt_exp semi opt_nls exp semi opt_nls opt_exp r_paren opt_nls statement
+ | LEX_FOR '(' opt_exp semi opt_nls semi opt_nls opt_exp r_paren opt_nls statement
+ | LEX_BREAK statement_term
+ | LEX_CONTINUE statement_term
+ | print '(' expression_list r_paren output_redir statement_term
+ | print opt_rexpression_list output_redir statement_term
+ | LEX_NEXT statement_term
+ | LEX_NEXTFILE statement_term
+ | LEX_EXIT opt_exp statement_term
+ | LEX_RETURN {} opt_exp statement_term
+ | LEX_DELETE NAME '[' expression_list ']' statement_term
+ | LEX_DELETE NAME statement_term
+ | exp statement_term
+ ;
+
+print
+ : LEX_PRINT
+ | LEX_PRINTF
+ ;
+
+if_statement
+ : LEX_IF '(' exp r_paren opt_nls statement
+ | LEX_IF '(' exp r_paren opt_nls statement
+ LEX_ELSE opt_nls statement
+ ;
+
+nls
+ : NEWLINE
+ | nls NEWLINE
+ ;
+
+opt_nls
+ : /* empty */
+ | nls
+ ;
+
+input_redir
+ : /* empty */
+ | '<' simp_exp
+ ;
+
+output_redir
+ : /* empty */
+ | '>' exp
+ | APPEND_OP exp
+ | '|' exp
+ | TWOWAYIO exp
+ ;
+
+opt_param_list
+ : /* empty */
+ | param_list
+ ;
+
+param_list
+ : NAME
+ | param_list comma NAME
+ | error
+ | param_list error
+ | param_list comma error
+ ;
+
+/* optional expression, as in for loop */
+opt_exp
+ : /* empty */
+ | exp
+ ;
+
+opt_rexpression_list
+ : /* empty */
+ | rexpression_list
+ ;
+
+rexpression_list
+ : rexp
+ | rexpression_list comma rexp
+ | error
+ | rexpression_list error
+ | rexpression_list error rexp
+ | rexpression_list comma error
+ ;
+
+opt_expression_list
+ : /* empty */
+ | expression_list
+ ;
+
+expression_list
+ : exp
+ | expression_list comma exp
+ | error
+ | expression_list error
+ | expression_list error exp
+ | expression_list comma error
+ ;
+
+/* Expressions, not including the comma operator. */
+exp : variable ASSIGNOP {} exp
+ | '(' expression_list r_paren LEX_IN NAME
+ | exp '|' LEX_GETLINE opt_variable
+ | exp TWOWAYIO LEX_GETLINE opt_variable
+ | LEX_GETLINE opt_variable input_redir
+ | exp LEX_AND exp
+ | exp LEX_OR exp
+ | exp MATCHOP exp
+ | regexp
+ | '!' regexp %prec UNARY
+ | exp LEX_IN NAME
+ | exp RELOP exp
+ | exp '<' exp
+ | exp '>' exp
+ | exp '?' exp ':' exp
+ | simp_exp
+ | exp simp_exp %prec CONCAT_OP
+ ;
+
+rexp
+ : variable ASSIGNOP {} rexp
+ | rexp LEX_AND rexp
+ | rexp LEX_OR rexp
+ | LEX_GETLINE opt_variable input_redir
+ | regexp
+ | '!' regexp %prec UNARY
+ | rexp MATCHOP rexp
+ | rexp LEX_IN NAME
+ | rexp RELOP rexp
+ | rexp '?' rexp ':' rexp
+ | simp_exp
+ | rexp simp_exp %prec CONCAT_OP
+ ;
+
+simp_exp
+ : non_post_simp_exp
+ /* Binary operators in order of decreasing precedence. */
+ | simp_exp '^' simp_exp
+ | simp_exp '*' simp_exp
+ | simp_exp '/' simp_exp
+ | simp_exp '%' simp_exp
+ | simp_exp '+' simp_exp
+ | simp_exp '-' simp_exp
+ | variable INCREMENT
+ | variable DECREMENT
+ ;
+
+non_post_simp_exp
+ : '!' simp_exp %prec UNARY
+ | '(' exp r_paren
+ | LEX_BUILTIN
+ '(' opt_expression_list r_paren
+ | LEX_LENGTH '(' opt_expression_list r_paren
+ | LEX_LENGTH
+ | FUNC_CALL '(' opt_expression_list r_paren
+ | variable
+ | INCREMENT variable
+ | DECREMENT variable
+ | YNUMBER
+ | YSTRING
+ | '-' simp_exp %prec UNARY
+ | '+' simp_exp %prec UNARY
+ ;
+
+opt_variable
+ : /* empty */
+ | variable
+ ;
+
+variable
+ : NAME
+ | NAME '[' expression_list ']'
+ | '$' non_post_simp_exp
+ ;
+
+l_brace
+ : '{' opt_nls
+ ;
+
+r_brace
+ : '}' opt_nls
+ ;
+
+r_paren
+ : ')'
+ ;
+
+opt_semi
+ : /* empty */
+ | semi
+ ;
+
+semi
+ : ';'
+ ;
+
+comma : ',' opt_nls
+ ;
+
+%%
+]])
+
+# Pass plenty of options, to exercise plenty of code, even if we
+# don't actually check the output. But SEGV is watching us, and
+# so might do dmalloc.
+AT_CHECK([[bison --verbose --defines input.y]])
+
+AT_CLEANUP
+
+## ----------------- ##
+## GNU Cim Grammar. ##
+## ----------------- ##
+
+AT_SETUP([GNU Cim Grammar])
+
+# GNU Cim, the GNU Simula 87 Compiler.
+
+# Bison was once wrong, due to an incorrect computation of the RR conflicts.
+# It reported 80 SR && 99 RR conflicts instead of 78/10!!!
+
+AT_DATA([[input.y]],
+[[%union {}
+
+%token
+ HACTIVATE HAFTER /*HAND*/ HARRAY HAT
+ HBEFORE HBEGIN HBOOLEAN
+ HCHARACTER HCLASS /*HCOMMENT*/ HCONC
+ HDELAY HDO
+ HELSE HEND HEQ /*HEQV*/ HEXTERNAL
+ HFOR
+ HGE HGO HGOTO HGT
+ HHIDDEN
+ HIF /*HIMP*/ HIN HINNER HINSPECT HINTEGER HIS
+ HLABEL HLE HLONG HLT
+ HNAME HNE HNEW HNONE /*HNOT*/ HNOTEXT
+ /*HOR*/ HOTHERWISE
+ HPRIOR HPROCEDURE HPROTECTED
+ HQUA
+ HREACTIVATE HREAL HREF
+ HSHORT HSTEP HSWITCH
+ HTEXT HTHEN HTHIS HTO
+ HUNTIL
+ HVALUE HVAR HVIRTUAL
+ HWHEN HWHILE
+
+ HASSIGNVALUE HASSIGNREF
+ /*HDOT*/ HPAREXPSEPARATOR HLABELSEPARATOR HSTATEMENTSEPARATOR
+ HBEGPAR HENDPAR
+ HEQR HNER
+ HADD HSUB HMUL HDIV HINTDIV HEXP
+ HDOTDOTDOT
+
+%token HIDENTIFIER
+%token HBOOLEANKONST HINTEGERKONST HCHARACTERKONST
+%token HREALKONST
+%token HTEXTKONST
+
+
+%right HASSIGN
+%left HORELSE
+%left HANDTHEN
+%left HEQV
+%left HIMP
+%left HOR
+%left HAND
+
+%left HNOT
+
+%left HVALRELOPERATOR HREFRELOPERATOR HOBJRELOPERATOR
+
+%left HCONC
+
+%left HTERMOPERATOR
+%left UNEAR
+%left HFACTOROPERATOR
+%left HPRIMARYOPERATOR
+
+%left HQUA
+
+%left HDOT
+
+%start MAIN_MODULE
+%%
+/* GRAMATIKK FOR PROGRAM MODULES */
+MAIN_MODULE : {}
+ MODULS
+ | error HSTATEMENTSEPARATOR MBEE_DECLSTMS
+ ;
+EXT_DECLARATION : HEXTERNAL
+ MBEE_TYPE
+ HPROCEDURE
+ {}
+ EXT_LIST
+ |
+ HEXTERNAL
+ HIDENTIFIER
+ HPROCEDURE
+ {}
+ HIDENTIFIER {}
+ EXTERNAL_KIND_ITEM
+ | HEXTERNAL
+ HCLASS
+ {}
+ EXT_LIST
+
+ ;
+EXTERNAL_KIND_ITEM: EXT_IDENT
+ HOBJRELOPERATOR
+ {}
+ MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ HEADING EMPTY_BLOCK
+ {}
+/* |
+ EXT_IDENT
+ {}
+ MBEE_REST_EXT_LIST
+ ;
+MBEE_REST_EXT_LIST: /* EMPTY
+ | HPAREXPSEPARATOR EXT_KIND_LIST
+ ;
+EXT_KIND_LIST : EXT_KIND_ITEM
+ | EXT_KIND_LIST HPAREXPSEPARATOR EXT_KIND_ITEM
+ ;
+EXT_KIND_ITEM : HIDENTIFIER
+ EXT_IDENT
+ {}*/
+ ;
+EMPTY_BLOCK : /*EMPT*/
+ | HBEGIN HEND
+ ;
+EXT_LIST : EXT_ITEM
+ | EXT_LIST HPAREXPSEPARATOR EXT_ITEM
+ ;
+EXT_ITEM : HIDENTIFIER
+ EXT_IDENT
+ ;
+EXT_IDENT : /* EMPTY */
+ | HVALRELOPERATOR {}
+ HTEXTKONST
+ ;
+/* GRAMATIKK FOR TYPER */
+NO_TYPE : /*EMPT*/
+ ;
+MBEE_TYPE : NO_TYPE
+ | TYPE
+ ;
+TYPE : HREF HBEGPAR
+ HIDENTIFIER
+ {}
+ HENDPAR
+ | HTEXT
+ | HBOOLEAN
+ | HCHARACTER
+ | HSHORT HINTEGER
+ | HINTEGER
+ | HREAL
+ | HLONG HREAL
+ ;
+
+/* GRAMATIKK FOR DEL AV SETNINGER */
+MBEE_ELSE_PART : /*EMPT*/
+/* | HELSE
+ HIF
+ EXPRESSION
+ HTHEN {}
+ BLOCK {}
+ MBEE_ELSE_PART {}*/
+ | HELSE {}
+ BLOCK
+ ;
+FOR_LIST : FOR_LIST_ELEMENT
+ | FOR_LIST_ELEMENT
+ HPAREXPSEPARATOR
+ FOR_LIST
+ ;
+FOR_LIST_ELEMENT: EXPRESSION
+ MBEE_F_L_EL_R_PT
+ ;
+MBEE_F_L_EL_R_PT: /*EMPT*/
+ | HWHILE
+ EXPRESSION
+ | HSTEP
+ EXPRESSION
+ HUNTIL
+ EXPRESSION
+ ;
+GOTO : HGO
+ HTO
+ | HGOTO
+ ;
+CONN_STATE_R_PT : WHEN_CLAUSE_LIST
+ | HDO {}
+ BLOCK
+ ;
+WHEN_CLAUSE_LIST: HWHEN
+ HIDENTIFIER
+ HDO {}
+ BLOCK
+ | WHEN_CLAUSE_LIST
+ HWHEN
+ HIDENTIFIER
+ HDO {}
+ BLOCK
+ ;
+MBEE_OTWI_CLAUS : /*EMPT*/
+ | HOTHERWISE {}
+
+ BLOCK
+ ;
+ACTIVATOR : HACTIVATE
+ | HREACTIVATE
+ ;
+SCHEDULE : /*EMPT*/
+ | ATDELAY EXPRESSION {}
+ PRIOR
+ | BEFOREAFTER {}
+ EXPRESSION
+ ;
+ATDELAY : HAT
+ | HDELAY
+ ;
+BEFOREAFTER : HBEFORE
+ | HAFTER
+ ;
+PRIOR : /*EMPT*/
+ | HPRIOR
+ ;
+/* GRAMATIKK FOR SETNINGER OG DEKLARASJONER */
+MODULSTATEMENT : HWHILE
+ EXPRESSION
+ HDO {}
+ BLOCK
+ | HIF
+ EXPRESSION
+ HTHEN {}
+ BLOCK {}
+ MBEE_ELSE_PART
+ | HFOR
+ HIDENTIFIER
+ HASSIGN {}
+ FOR_LIST
+ HDO {}
+ BLOCK
+ | GOTO
+ EXPRESSION
+ | HINSPECT
+ EXPRESSION {}
+ CONN_STATE_R_PT
+ {}
+ MBEE_OTWI_CLAUS
+ | HINNER
+ | HIDENTIFIER
+ HLABELSEPARATOR
+ {}
+ DECLSTATEMENT
+ | EXPRESSION_SIMP
+ HBEGIN
+ {}
+ IMPORT_SPEC_MODULE
+ {}
+ MBEE_DECLSTMS
+ HEND
+ | EXPRESSION_SIMP HBEGIN error HSTATEMENTSEPARATOR
+ MBEE_DECLSTMS HEND
+ | EXPRESSION_SIMP HBEGIN error HEND
+ | EXPRESSION_SIMP
+ | ACTIVATOR EXPRESSION SCHEDULE
+ | HBEGIN
+ {}
+ MBEE_DECLSTMS
+ HEND
+ | MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ HEADING BLOCK
+ | HIDENTIFIER
+ HCLASS
+ NO_TYPE
+ {}
+ IMPORT_SPEC_MODULE
+ HIDENTIFIER
+ {}
+ HEADING
+ BLOCK
+ | HCLASS
+ NO_TYPE
+ HIDENTIFIER
+ {}
+ HEADING
+ BLOCK
+ | EXT_DECLARATION
+ | /*EMPT*/
+ ;
+IMPORT_SPEC_MODULE:
+ ;
+DECLSTATEMENT : MODULSTATEMENT
+ | TYPE
+ HIDENTIFIER
+ MBEE_CONSTANT
+ HPAREXPSEPARATOR
+ {}
+ IDENTIFIER_LISTC
+ | TYPE
+ HIDENTIFIER
+ MBEE_CONSTANT
+ | MBEE_TYPE
+ HARRAY {}
+ ARR_SEGMENT_LIST
+ | HSWITCH
+ HIDENTIFIER
+ HASSIGN {}
+ SWITCH_LIST
+ ;
+BLOCK : DECLSTATEMENT
+ | HBEGIN MBEE_DECLSTMS HEND
+ | HBEGIN error HSTATEMENTSEPARATOR MBEE_DECLSTMS HEND
+ | HBEGIN error HEND
+ ;
+MBEE_DECLSTMS : MBEE_DECLSTMSU
+ ;
+MBEE_DECLSTMSU : DECLSTATEMENT
+ | MBEE_DECLSTMSU
+ HSTATEMENTSEPARATOR
+ DECLSTATEMENT
+ ;
+MODULS : MODULSTATEMENT
+ | MODULS HSTATEMENTSEPARATOR MODULSTATEMENT
+ ;
+/* GRAMATIKK FOR DEL AV DEKLARASJONER */
+ARR_SEGMENT_LIST: ARR_SEGMENT
+ | ARR_SEGMENT_LIST
+ HPAREXPSEPARATOR
+ ARR_SEGMENT
+ ;
+ARR_SEGMENT : ARRAY_SEGMENT
+ HBEGPAR
+ BAUND_PAIR_LIST HENDPAR
+ ;
+ARRAY_SEGMENT : ARRAY_SEGMENT_EL {}
+
+ | ARRAY_SEGMENT_EL
+ HPAREXPSEPARATOR
+ ARRAY_SEGMENT
+ ;
+ARRAY_SEGMENT_EL: HIDENTIFIER
+ ;
+BAUND_PAIR_LIST : BAUND_PAIR
+ | BAUND_PAIR
+ HPAREXPSEPARATOR
+ BAUND_PAIR_LIST
+ ;
+BAUND_PAIR : EXPRESSION
+ HLABELSEPARATOR
+ EXPRESSION
+ ;
+SWITCH_LIST : EXPRESSION
+ | EXPRESSION
+ HPAREXPSEPARATOR
+ SWITCH_LIST
+ ;
+HEADING : MBEE_FMAL_PAR_P HSTATEMENTSEPARATOR {}
+ MBEE_MODE_PART {}
+ MBEE_SPEC_PART {}
+ MBEE_PROT_PART {}
+ MBEE_VIRT_PART
+ ;
+MBEE_FMAL_PAR_P : /*EMPT*/
+ | FMAL_PAR_PART
+ ;
+FMAL_PAR_PART : HBEGPAR NO_TYPE
+ MBEE_LISTV HENDPAR
+ ;
+MBEE_LISTV : /*EMPT*/
+ | LISTV
+ ;
+LISTV : HIDENTIFIER
+ | FPP_CATEG HDOTDOTDOT
+ | HIDENTIFIER {}
+ HPAREXPSEPARATOR LISTV
+ | FPP_SPEC
+ | FPP_SPEC
+ HPAREXPSEPARATOR LISTV
+ ;
+FPP_HEADING : HBEGPAR NO_TYPE
+ FPP_MBEE_LISTV HENDPAR
+ ;
+FPP_MBEE_LISTV : /*EMPT*/
+ | FPP_LISTV
+ ;
+FPP_LISTV : FPP_CATEG HDOTDOTDOT
+ | FPP_SPEC
+ | FPP_SPEC
+ HPAREXPSEPARATOR LISTV
+ ;
+FPP_SPEC : FPP_CATEG SPECIFIER HIDENTIFIER
+ | FPP_CATEG FPP_PROC_DECL_IN_SPEC
+ ;
+FPP_CATEG : HNAME HLABELSEPARATOR
+ | HVALUE HLABELSEPARATOR
+ | HVAR HLABELSEPARATOR
+ | /*EMPT*/
+ ;
+FPP_PROC_DECL_IN_SPEC: MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ FPP_HEADING {} { /* Yes, two "final" actions. */ }
+ ;
+IDENTIFIER_LISTV: HIDENTIFIER
+ | HDOTDOTDOT
+ | HIDENTIFIER {}
+ HPAREXPSEPARATOR IDENTIFIER_LISTV
+ ;
+MBEE_MODE_PART : /*EMPT*/
+ | MODE_PART
+ ;
+MODE_PART : NAME_PART
+ | VALUE_PART
+ | VAR_PART
+ | NAME_PART VALUE_PART
+ | VALUE_PART NAME_PART
+ | NAME_PART VAR_PART
+ | VAR_PART NAME_PART
+ | VALUE_PART VAR_PART
+ | VAR_PART VALUE_PART
+ | VAR_PART NAME_PART VALUE_PART
+ | NAME_PART VAR_PART VALUE_PART
+ | NAME_PART VALUE_PART VAR_PART
+ | VAR_PART VALUE_PART NAME_PART
+ | VALUE_PART VAR_PART NAME_PART
+ | VALUE_PART NAME_PART VAR_PART
+ ;
+NAME_PART : HNAME {}
+ IDENTIFIER_LISTV
+ HSTATEMENTSEPARATOR
+ ;
+VAR_PART : HVAR {}
+ IDENTIFIER_LISTV
+ HSTATEMENTSEPARATOR
+ ;
+VALUE_PART : HVALUE {}
+ IDENTIFIER_LISTV HSTATEMENTSEPARATOR
+ ;
+MBEE_SPEC_PART : /*EMPT*/
+ | SPEC_PART
+ ;
+SPEC_PART : ONE_SPEC
+ | SPEC_PART ONE_SPEC
+ ;
+ONE_SPEC : SPECIFIER IDENTIFIER_LIST HSTATEMENTSEPARATOR
+ | NO_TYPE HPROCEDURE HIDENTIFIER HOBJRELOPERATOR
+ {}
+ PROC_DECL_IN_SPEC HSTATEMENTSEPARATOR
+ | FPP_PROC_DECL_IN_SPEC HSTATEMENTSEPARATOR
+ | MBEE_TYPE HPROCEDURE HIDENTIFIER HSTATEMENTSEPARATOR
+ | MBEE_TYPE HPROCEDURE HIDENTIFIER HPAREXPSEPARATOR
+ IDENTIFIER_LIST HSTATEMENTSEPARATOR
+ ;
+SPECIFIER : TYPE
+ | MBEE_TYPE
+ HARRAY
+ | HLABEL
+ | HSWITCH
+ ;
+PROC_DECL_IN_SPEC: MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ HEADING
+ {}
+ MBEE_BEGIN_END
+ ;
+MBEE_BEGIN_END : /* EMPTY */
+ | HBEGIN HEND
+ ;
+MBEE_PROT_PART : /*EMPT*/
+ | PROTECTION_PART
+ ;
+PROTECTION_PART : PROT_SPECIFIER IDENTIFIER_LIST
+ HSTATEMENTSEPARATOR
+ | PROTECTION_PART PROT_SPECIFIER
+ IDENTIFIER_LIST HSTATEMENTSEPARATOR
+ ;
+PROT_SPECIFIER : HHIDDEN
+ | HPROTECTED
+ | HHIDDEN
+ HPROTECTED
+ | HPROTECTED
+ HHIDDEN
+ ;
+MBEE_VIRT_PART : /*EMPT*/
+ | VIRTUAL_PART
+ ;
+VIRTUAL_PART : HVIRTUAL
+ HLABELSEPARATOR
+ MBEE_SPEC_PART
+ ;
+IDENTIFIER_LIST : HIDENTIFIER
+ | IDENTIFIER_LIST HPAREXPSEPARATOR
+ HIDENTIFIER
+ ;
+IDENTIFIER_LISTC: HIDENTIFIER
+ MBEE_CONSTANT
+ | IDENTIFIER_LISTC HPAREXPSEPARATOR
+ HIDENTIFIER
+ MBEE_CONSTANT
+ ;
+MBEE_CONSTANT : /* EMPTY */
+ | HVALRELOPERATOR
+ {}
+ EXPRESSION
+ ;
+
+/* GRAMATIKK FOR UTTRYKK */
+EXPRESSION : EXPRESSION_SIMP
+ | HIF
+ EXPRESSION
+ HTHEN
+ EXPRESSION
+ HELSE
+ EXPRESSION
+ ;
+EXPRESSION_SIMP : EXPRESSION_SIMP
+ HASSIGN
+ EXPRESSION
+ |
+
+ EXPRESSION_SIMP
+ HCONC
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP HOR
+ HELSE
+ EXPRESSION_SIMP
+ %prec HORELSE
+ | EXPRESSION_SIMP HAND
+ HTHEN
+ EXPRESSION_SIMP
+ %prec HANDTHEN
+ | EXPRESSION_SIMP
+ HEQV EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HIMP EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HOR EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HAND EXPRESSION_SIMP
+ | HNOT EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HVALRELOPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HREFRELOPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HOBJRELOPERATOR
+ EXPRESSION_SIMP
+ | HTERMOPERATOR
+ EXPRESSION_SIMP %prec UNEAR
+ | EXPRESSION_SIMP
+ HTERMOPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HFACTOROPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HPRIMARYOPERATOR
+ EXPRESSION_SIMP
+ | HBEGPAR
+ EXPRESSION HENDPAR
+ | HTEXTKONST
+ | HCHARACTERKONST
+ | HREALKONST
+ | HINTEGERKONST
+ | HBOOLEANKONST
+ | HNONE
+ | HIDENTIFIER
+ {}
+ MBEE_ARG_R_PT
+ | HTHIS HIDENTIFIER
+ | HNEW
+ HIDENTIFIER
+ ARG_R_PT
+ | EXPRESSION_SIMP
+ HDOT
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HQUA HIDENTIFIER
+ ;
+ARG_R_PT : /*EMPTY*/
+ | HBEGPAR
+ ARGUMENT_LIST HENDPAR
+ ;
+MBEE_ARG_R_PT : /*EMPTY*/
+ | HBEGPAR
+ ARGUMENT_LIST HENDPAR
+ ;
+ARGUMENT_LIST : EXPRESSION
+ | EXPRESSION
+ HPAREXPSEPARATOR
+ ARGUMENT_LIST
+ ;
+%%
+]])
+
+# Pass plenty of options, to exercise plenty of code, even if we
+# don't actually check the output. But SEGV is watching us, and
+# so might do dmalloc.
+AT_CHECK([[bison --verbose --defines input.y]], 0, [],
+[[input.y: conflicts: 78 shift/reduce, 10 reduce/reduce
+]])
+
+AT_CHECK([[grep '^State.*conflicts:' input.output]], 0,
+[[State 64 conflicts: 14 shift/reduce
+State 164 conflicts: 1 shift/reduce
+State 201 conflicts: 33 shift/reduce, 4 reduce/reduce
+State 206 conflicts: 1 shift/reduce
+State 240 conflicts: 1 shift/reduce
+State 335 conflicts: 9 shift/reduce, 2 reduce/reduce
+State 356 conflicts: 1 shift/reduce
+State 360 conflicts: 9 shift/reduce, 2 reduce/reduce
+State 427 conflicts: 9 shift/reduce, 2 reduce/reduce
+]])
+
+AT_CLEANUP
+
+## ----------------- ##
+## GNU pic Grammar. ##
+## ----------------- ##
+
+AT_SETUP([GNU pic Grammar])
+
+# GNU pic, part of groff.
+
+# Bison once reported shift/reduce conflicts that it shouldn't have.
+
+AT_DATA([[input.y]],
+[[%union {}
+
+%token LABEL
+%token VARIABLE
+%token NUMBER
+%token TEXT
+%token COMMAND_LINE
+%token DELIMITED
+%token ORDINAL
+%token TH
+%token LEFT_ARROW_HEAD
+%token RIGHT_ARROW_HEAD
+%token DOUBLE_ARROW_HEAD
+%token LAST
+%token UP
+%token DOWN
+%token LEFT
+%token RIGHT
+%token BOX
+%token CIRCLE
+%token ELLIPSE
+%token ARC
+%token LINE
+%token ARROW
+%token MOVE
+%token SPLINE
+%token HEIGHT
+%token RADIUS
+%token WIDTH
+%token DIAMETER
+%token FROM
+%token TO
+%token AT
+%token WITH
+%token BY
+%token THEN
+%token SOLID
+%token DOTTED
+%token DASHED
+%token CHOP
+%token SAME
+%token INVISIBLE
+%token LJUST
+%token RJUST
+%token ABOVE
+%token BELOW
+%token OF
+%token THE
+%token WAY
+%token BETWEEN
+%token AND
+%token HERE
+%token DOT_N
+%token DOT_E
+%token DOT_W
+%token DOT_S
+%token DOT_NE
+%token DOT_SE
+%token DOT_NW
+%token DOT_SW
+%token DOT_C
+%token DOT_START
+%token DOT_END
+%token DOT_X
+%token DOT_Y
+%token DOT_HT
+%token DOT_WID
+%token DOT_RAD
+%token SIN
+%token COS
+%token ATAN2
+%token LOG
+%token EXP
+%token SQRT
+%token K_MAX
+%token K_MIN
+%token INT
+%token RAND
+%token SRAND
+%token COPY
+%token THRU
+%token TOP
+%token BOTTOM
+%token UPPER
+%token LOWER
+%token SH
+%token PRINT
+%token CW
+%token CCW
+%token FOR
+%token DO
+%token IF
+%token ELSE
+%token ANDAND
+%token OROR
+%token NOTEQUAL
+%token EQUALEQUAL
+%token LESSEQUAL
+%token GREATEREQUAL
+%token LEFT_CORNER
+%token RIGHT_CORNER
+%token NORTH
+%token SOUTH
+%token EAST
+%token WEST
+%token CENTER
+%token END
+%token START
+%token RESET
+%token UNTIL
+%token PLOT
+%token THICKNESS
+%token FILL
+%token COLORED
+%token OUTLINED
+%token SHADED
+%token ALIGNED
+%token SPRINTF
+%token COMMAND
+
+%left '.'
+
+/* this ensures that plot 17 "%g" parses as (plot 17 "%g") */
+%left PLOT
+%left TEXT SPRINTF
+
+/* give text adjustments higher precedence than TEXT, so that
+box "foo" above ljust == box ("foo" above ljust)
+*/
+
+%left LJUST RJUST ABOVE BELOW
+
+%left LEFT RIGHT
+/* Give attributes that take an optional expression a higher
+precedence than left and right, so that eg `line chop left'
+parses properly. */
+%left CHOP SOLID DASHED DOTTED UP DOWN FILL COLORED OUTLINED
+%left LABEL
+
+%left VARIABLE NUMBER '(' SIN COS ATAN2 LOG EXP SQRT K_MAX K_MIN INT RAND SRAND LAST
+%left ORDINAL HERE '`'
+
+%left BOX CIRCLE ELLIPSE ARC LINE ARROW SPLINE '[' /* ] */
+
+/* these need to be lower than '-' */
+%left HEIGHT RADIUS WIDTH DIAMETER FROM TO AT THICKNESS
+
+/* these must have higher precedence than CHOP so that `label %prec CHOP'
+works */
+%left DOT_N DOT_E DOT_W DOT_S DOT_NE DOT_SE DOT_NW DOT_SW DOT_C
+%left DOT_START DOT_END TOP BOTTOM LEFT_CORNER RIGHT_CORNER
+%left UPPER LOWER NORTH SOUTH EAST WEST CENTER START END
+
+%left ','
+%left OROR
+%left ANDAND
+%left EQUALEQUAL NOTEQUAL
+%left '<' '>' LESSEQUAL GREATEREQUAL
+
+%left BETWEEN OF
+%left AND
+
+%left '+' '-'
+%left '*' '/' '%'
+%right '!'
+%right '^'
+
+%%
+
+top:
+ optional_separator
+ | element_list
+ ;
+
+element_list:
+ optional_separator middle_element_list optional_separator
+ ;
+
+middle_element_list:
+ element
+ | middle_element_list separator element
+ ;
+
+optional_separator:
+ /* empty */
+ | separator
+ ;
+
+separator:
+ ';'
+ | separator ';'
+ ;
+
+placeless_element:
+ VARIABLE '=' any_expr
+ | VARIABLE ':' '=' any_expr
+ | UP
+ | DOWN
+ | LEFT
+ | RIGHT
+ | COMMAND_LINE
+ | COMMAND print_args
+ | PRINT print_args
+ | SH
+ {}
+ DELIMITED
+ | COPY TEXT
+ | COPY TEXT THRU
+ {}
+ DELIMITED
+ {}
+ until
+ | COPY THRU
+ {}
+ DELIMITED
+ {}
+ until
+ | FOR VARIABLE '=' expr TO expr optional_by DO
+ {}
+ DELIMITED
+ | simple_if
+ | simple_if ELSE
+ {}
+ DELIMITED
+ | reset_variables
+ | RESET
+ ;
+
+reset_variables:
+ RESET VARIABLE
+ | reset_variables VARIABLE
+ | reset_variables ',' VARIABLE
+ ;
+
+print_args:
+ print_arg
+ | print_args print_arg
+ ;
+
+print_arg:
+ expr %prec ','
+ | text
+ | position %prec ','
+ ;
+
+simple_if:
+ IF any_expr THEN
+ {}
+ DELIMITED
+ ;
+
+until:
+ /* empty */
+ | UNTIL TEXT
+ ;
+
+any_expr:
+ expr
+ | text_expr
+ ;
+
+text_expr:
+ text EQUALEQUAL text
+ | text NOTEQUAL text
+ | text_expr ANDAND text_expr
+ | text_expr ANDAND expr
+ | expr ANDAND text_expr
+ | text_expr OROR text_expr
+ | text_expr OROR expr
+ | expr OROR text_expr
+ | '!' text_expr
+ ;
+
+optional_by:
+ /* empty */
+ | BY expr
+ | BY '*' expr
+ ;
+
+element:
+ object_spec
+ | LABEL ':' optional_separator element
+ | LABEL ':' optional_separator position_not_place
+ | LABEL ':' optional_separator place
+ | '{}'
+ {}
+ optional_element
+ | placeless_element
+ ;
+
+optional_element:
+ /* empty */
+ | element
+ ;
+
+object_spec:
+ BOX
+ | CIRCLE
+ | ELLIPSE
+ | ARC
+ | LINE
+ | ARROW
+ | MOVE
+ | SPLINE
+ | text %prec TEXT
+ | PLOT expr
+ | PLOT expr text
+ | '['
+ {}
+ element_list ']'
+ | object_spec HEIGHT expr
+ | object_spec RADIUS expr
+ | object_spec WIDTH expr
+ | object_spec DIAMETER expr
+ | object_spec expr %prec HEIGHT
+ | object_spec UP
+ | object_spec UP expr
+ | object_spec DOWN
+ | object_spec DOWN expr
+ | object_spec RIGHT
+ | object_spec RIGHT expr
+ | object_spec LEFT
+ | object_spec LEFT expr
+ | object_spec FROM position
+ | object_spec TO position
+ | object_spec AT position
+ | object_spec WITH path
+ | object_spec WITH position %prec ','
+ | object_spec BY expr_pair
+ | object_spec THEN
+ | object_spec SOLID
+ | object_spec DOTTED
+ | object_spec DOTTED expr
+ | object_spec DASHED
+ | object_spec DASHED expr
+ | object_spec FILL
+ | object_spec FILL expr
+ | object_spec SHADED text
+ | object_spec COLORED text
+ | object_spec OUTLINED text
+ | object_spec CHOP
+ | object_spec CHOP expr
+ | object_spec SAME
+ | object_spec INVISIBLE
+ | object_spec LEFT_ARROW_HEAD
+ | object_spec RIGHT_ARROW_HEAD
+ | object_spec DOUBLE_ARROW_HEAD
+ | object_spec CW
+ | object_spec CCW
+ | object_spec text %prec TEXT
+ | object_spec LJUST
+ | object_spec RJUST
+ | object_spec ABOVE
+ | object_spec BELOW
+ | object_spec THICKNESS expr
+ | object_spec ALIGNED
+ ;
+
+text:
+ TEXT
+ | SPRINTF '(' TEXT sprintf_args ')'
+ ;
+
+sprintf_args:
+ /* empty */
+ | sprintf_args ',' expr
+ ;
+
+position:
+ position_not_place
+ | place
+ ;
+
+position_not_place:
+ expr_pair
+ | position '+' expr_pair
+ | position '-' expr_pair
+ | '(' position ',' position ')'
+ | expr between position AND position
+ | expr '<' position ',' position '>'
+ ;
+
+between:
+ BETWEEN
+ | OF THE WAY BETWEEN
+ ;
+
+expr_pair:
+ expr ',' expr
+ | '(' expr_pair ')'
+ ;
+
+place:
+ /* line at A left == line (at A) left */
+ label %prec CHOP
+ | label corner
+ | corner label
+ | corner OF label
+ | HERE
+ ;
+
+label:
+ LABEL
+ | nth_primitive
+ | label '.' LABEL
+ ;
+
+ordinal:
+ ORDINAL
+ | '`' any_expr TH
+ ;
+
+optional_ordinal_last:
+ LAST
+ | ordinal LAST
+ ;
+
+nth_primitive:
+ ordinal object_type
+ | optional_ordinal_last object_type
+ ;
+
+object_type:
+ BOX
+ | CIRCLE
+ | ELLIPSE
+ | ARC
+ | LINE
+ | ARROW
+ | SPLINE
+ | '[' ']'
+ | TEXT
+ ;
+
+label_path:
+ '.' LABEL
+ | label_path '.' LABEL
+ ;
+
+relative_path:
+ corner %prec CHOP
+ /* give this a lower precedence than LEFT and RIGHT so that
+ [A: box] with .A left == [A: box] with (.A left) */
+ | label_path %prec TEXT
+ | label_path corner
+ ;
+
+path:
+ relative_path
+ | '(' relative_path ',' relative_path ')'
+ {}
+ /* The rest of these rules are a compatibility sop. */
+ | ORDINAL LAST object_type relative_path
+ | LAST object_type relative_path
+ | ORDINAL object_type relative_path
+ | LABEL relative_path
+ ;
+
+corner:
+ DOT_N
+ | DOT_E
+ | DOT_W
+ | DOT_S
+ | DOT_NE
+ | DOT_SE
+ | DOT_NW
+ | DOT_SW
+ | DOT_C
+ | DOT_START
+ | DOT_END
+ | TOP
+ | BOTTOM
+ | LEFT
+ | RIGHT
+ | UPPER LEFT
+ | LOWER LEFT
+ | UPPER RIGHT
+ | LOWER RIGHT
+ | LEFT_CORNER
+ | RIGHT_CORNER
+ | UPPER LEFT_CORNER
+ | LOWER LEFT_CORNER
+ | UPPER RIGHT_CORNER
+ | LOWER RIGHT_CORNER
+ | NORTH
+ | SOUTH
+ | EAST
+ | WEST
+ | CENTER
+ | START
+ | END
+ ;
+
+expr:
+ VARIABLE
+ | NUMBER
+ | place DOT_X
+ | place DOT_Y
+ | place DOT_HT
+ | place DOT_WID
+ | place DOT_RAD
+ | expr '+' expr
+ | expr '-' expr
+ | expr '*' expr
+ | expr '/' expr
+ | expr '%' expr
+ | expr '^' expr
+ | '-' expr %prec '!'
+ | '(' any_expr ')'
+ | SIN '(' any_expr ')'
+ | COS '(' any_expr ')'
+ | ATAN2 '(' any_expr ',' any_expr ')'
+ | LOG '(' any_expr ')'
+ | EXP '(' any_expr ')'
+ | SQRT '(' any_expr ')'
+ | K_MAX '(' any_expr ',' any_expr ')'
+ | K_MIN '(' any_expr ',' any_expr ')'
+ | INT '(' any_expr ')'
+ | RAND '(' any_expr ')'
+ | RAND '(' ')'
+ | SRAND '(' any_expr ')'
+ | expr '<' expr
+ | expr LESSEQUAL expr
+ | expr '>' expr
+ | expr GREATEREQUAL expr
+ | expr EQUALEQUAL expr
+ | expr NOTEQUAL expr
+ | expr ANDAND expr
+ | expr OROR expr
+ | '!' expr
+ ;
+]])
+
+# Pass plenty of options, to exercise plenty of code, even if we
+# don't actually check the output. But SEGV is watching us, and
+# so might do dmalloc.
+AT_CHECK([[bison --verbose --defines input.y]], 0, [], [])
+
+AT_CLEANUP
diff --git a/tests/glr-regression.at b/tests/glr-regression.at
new file mode 100644
index 0000000..9e3cec7
--- /dev/null
+++ b/tests/glr-regression.at
@@ -0,0 +1,1663 @@
+# Checking GLR Parsing: Regression Tests -*- Autotest -*-
+# Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[GLR Regression Tests]])
+
+## --------------------------- ##
+## Badly Collapsed GLR States. ##
+## --------------------------- ##
+
+AT_SETUP([Badly Collapsed GLR States])
+
+AT_DATA_GRAMMAR([glr-regr1.y],
+[[/* Regression Test: Improper state compression */
+/* Reported by Scott McPeak */
+
+%{
+#include <stdio.h>
+
+#define YYSTYPE int
+static YYSTYPE exprMerge (YYSTYPE x0, YYSTYPE x1);
+int yylex (void);
+void yyerror (char const *msg);
+%}
+
+
+%glr-parser
+
+
+/* -------- productions ------ */
+%%
+
+StartSymbol: E { $$=0; } %merge <exprMerge>
+ ;
+
+E: E 'P' E { $$=1; printf("E -> E 'P' E\n"); } %merge <exprMerge>
+ | 'B' { $$=2; printf("E -> 'B'\n"); } %merge <exprMerge>
+ ;
+
+
+
+/* ---------- C code ----------- */
+%%
+
+static YYSTYPE exprMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ (void) x0;
+ (void) x1;
+ printf ("<OR>\n");
+ return 0;
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+
+void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+
+int
+yylex (void)
+{
+ for (;;)
+ {
+ int ch = getchar ();
+ if (ch == EOF)
+ return 0;
+ else if (ch == 'B' || ch == 'P')
+ return ch;
+ }
+}
+]])
+
+AT_CHECK([[bison -o glr-regr1.c glr-regr1.y]], 0, [],
+[glr-regr1.y: conflicts: 1 shift/reduce
+])
+AT_COMPILE([glr-regr1])
+AT_CHECK([[echo BPBPB | ./glr-regr1]], 0,
+[[E -> 'B'
+E -> 'B'
+E -> E 'P' E
+E -> 'B'
+E -> E 'P' E
+E -> 'B'
+E -> E 'P' E
+E -> E 'P' E
+<OR>
+]], [])
+
+AT_CLEANUP
+
+## ------------------------------------------------------------ ##
+## Improper handling of embedded actions and $-N in GLR parsers ##
+## ------------------------------------------------------------ ##
+
+AT_SETUP([Improper handling of embedded actions and dollar(-N) in GLR parsers])
+
+AT_DATA_GRAMMAR([glr-regr2a.y],
+[[/* Regression Test: Improper handling of embedded actions and $-N */
+/* Reported by S. Eken */
+
+%{
+ #define YYSTYPE char *
+
+ #include <ctype.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+ int yylex (void);
+ void yyerror (char const *);
+%}
+
+%glr-parser
+
+%%
+
+command:
+ 's' var 't'
+ { printf ("Variable: '%s'\n", $2); }
+ 'v' 'x' 'q'
+ { free ($2); }
+ | 's' var_list 't' 'e'
+ { printf ("Varlist: '%s'\n", $2); free ($2); }
+ | 's' var 't' var_printer 'x'
+ { free ($2); }
+ ;
+
+var:
+ 'V'
+ { $$ = $1; }
+ ;
+
+var_list:
+ var
+ { $$ = $1; }
+ | var ',' var_list
+ {
+ char *s = (char *) realloc ($1, strlen ($1) + 1 + strlen ($3) + 1);
+ strcat (s, ",");
+ strcat (s, $3);
+ free ($3);
+ $$ = s;
+ }
+ ;
+
+var_printer: 'v'
+ { printf ("Variable: '%s'\n", $-1); }
+
+%%
+
+FILE *input = NULL;
+
+int
+yylex (void)
+{
+ char buf[50];
+ char *s;
+ switch (fscanf (input, " %1[a-z,]", buf)) {
+ case 1:
+ return buf[0];
+ case EOF:
+ return 0;
+ default:
+ break;
+ }
+ if (fscanf (input, "%49s", buf) != 1)
+ return 0;
+ if (sizeof buf - 1 <= strlen (buf))
+ abort ();
+ s = (char *) malloc (strlen (buf) + 1);
+ strcpy (s, buf);
+ yylval = s;
+ return 'V';
+}
+
+void
+yyerror (char const *s)
+{ printf ("%s\n", s);
+}
+
+int
+main (int argc, char **argv)
+{
+ input = stdin;
+ if (argc == 2 && !(input = fopen (argv[1], "r"))) return 3;
+ return yyparse ();
+}
+]])
+
+AT_CHECK([[bison -o glr-regr2a.c glr-regr2a.y]], 0, [],
+[glr-regr2a.y: conflicts: 2 shift/reduce
+])
+AT_COMPILE([glr-regr2a])
+
+AT_CHECK([[echo s VARIABLE_1 t v x q | ./glr-regr2a]], 0,
+[[Variable: 'VARIABLE_1'
+]], [])
+AT_CHECK([[echo s VARIABLE_1 , ANOTHER_VARIABLE_2 t e | ./glr-regr2a]], 0,
+[[Varlist: 'VARIABLE_1,ANOTHER_VARIABLE_2'
+]])
+AT_CHECK([[echo s VARIABLE_3 t v x | ./glr-regr2a]], 0,
+[[Variable: 'VARIABLE_3'
+]], [])
+
+
+AT_CLEANUP
+
+## ------------------------------------------------------------ ##
+## Improper merging of GLR delayed action sets ##
+## ------------------------------------------------------------ ##
+
+AT_SETUP([Improper merging of GLR delayed action sets])
+
+AT_DATA_GRAMMAR([glr-regr3.y],
+[[/* Regression Test: Improper merging of GLR delayed action sets. */
+/* Reported by M. Rosien */
+
+%{
+#include <stdio.h>
+#include <stdarg.h>
+
+static int MergeRule (int x0, int x1);
+static void yyerror (char const * s);
+int yylex (void);
+
+#define RULE(x) (1 << (x))
+
+%}
+
+%glr-parser
+
+%token BAD_CHAR
+%token P1 P2 T1 T2 T3 T4 O1 O2
+
+%%
+
+S : P1 T4 O2 NT6 P2 { printf ("Result: %x\n", $4); }
+;
+
+NT1 : P1 T1 O1 T2 P2 { $$ = RULE(2); } %merge<MergeRule>
+;
+
+NT2 : NT1 { $$ = RULE(3); } %merge<MergeRule>
+ | P1 NT1 O1 T3 P2 { $$ = RULE(4); } %merge<MergeRule>
+;
+
+NT3 : T3 { $$ = RULE(5); } %merge<MergeRule>
+ | P1 NT1 O1 T3 P2 { $$ = RULE(6); } %merge<MergeRule>
+;
+
+NT4 : NT3 { $$ = RULE(7); } %merge<MergeRule>
+ | NT2 { $$ = RULE(8); } %merge<MergeRule>
+ | P1 NT2 O1 NT3 P2 { $$ = RULE(9); } %merge<MergeRule>
+;
+
+NT5 : NT4 { $$ = RULE(10); } %merge<MergeRule>
+;
+
+NT6 : P1 NT1 O1 T3 P2 { $$ = RULE(11) | $2; } %merge<MergeRule>
+ | NT5 { $$ = RULE(12) | $1; } %merge<MergeRule>
+;
+
+%%
+
+static int MergeRule (int x0, int x1) {
+ return x0 | x1;
+}
+
+static void yyerror(char const * s) {
+ fprintf(stderr,"error: %s\n",s);
+}
+
+FILE *input = NULL;
+
+int P[] = { P1, P2 };
+int O[] = { O1, O2 };
+int T[] = { T1, T2, T3, T4 };
+
+int yylex (void)
+{
+ char inp[3];
+ if (fscanf (input, "%2s", inp) == EOF)
+ return 0;
+ switch (inp[0])
+ {
+ case 'p': return P[inp[1] - '1'];
+ case 't': return T[inp[1] - '1'];
+ case 'o': return O[inp[1] - '1'];
+ }
+ return BAD_CHAR;
+}
+
+int main(int argc, char* argv[]) {
+ input = stdin;
+ if (argc == 2 && !(input = fopen (argv[1], "r"))) return 3;
+ return yyparse ();
+}
+]])
+
+AT_CHECK([[bison -o glr-regr3.c glr-regr3.y]], 0, [],
+[glr-regr3.y: conflicts: 1 shift/reduce, 1 reduce/reduce
+])
+AT_COMPILE([glr-regr3])
+
+AT_CHECK([[echo p1 t4 o2 p1 p1 t1 o1 t2 p2 o1 t3 p2 p2 | ./glr-regr3]], 0,
+[[Result: 1c04
+]], [])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Duplicate representation of merged trees. See ##
+## <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Duplicate representation of merged trees])
+
+AT_DATA_GRAMMAR([glr-regr4.y],
+[[
+%union { char *ptr; }
+%type <ptr> S A A1 A2 B
+%glr-parser
+
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+ static char *merge (YYSTYPE, YYSTYPE);
+ static char *make_value (char const *, char const *);
+ static void yyerror (char const *);
+ static int yylex (void);
+%}
+
+%%
+
+tree: S { printf ("%s\n", $1); } ;
+
+S:
+ A %merge<merge> { $$ = make_value ("S", $1); }
+ | B %merge<merge> { $$ = make_value ("S", $1); }
+ ;
+
+A:
+ A1 %merge<merge> { $$ = make_value ("A", $1); }
+ | A2 %merge<merge> { $$ = make_value ("A", $1); }
+ ;
+
+A1: 'a' { $$ = make_value ("A1", "'a'"); } ;
+A2: 'a' { $$ = make_value ("A2", "'a'"); } ;
+B: 'a' { $$ = make_value ("B", "'a'"); } ;
+
+%%
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+
+static char *
+make_value (char const *parent, char const *child)
+{
+ char const format[] = "%s <- %s";
+ char *value =
+ (char *) malloc (strlen (parent) + strlen (child) + sizeof format);
+ sprintf (value, format, parent, child);
+ return value;
+}
+
+static char *
+merge (YYSTYPE s1, YYSTYPE s2)
+{
+ char const format[] = "merge{ %s and %s }";
+ char *value =
+ (char *) malloc (strlen (s1.ptr) + strlen (s2.ptr) + sizeof format);
+ sprintf (value, format, s1.ptr, s2.ptr);
+ return value;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+]])
+
+AT_CHECK([[bison -o glr-regr4.c glr-regr4.y]], 0, [],
+[glr-regr4.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr4])
+
+AT_CHECK([[./glr-regr4]], 0,
+[[merge{ S <- merge{ A <- A1 <- 'a' and A <- A2 <- 'a' } and S <- B <- 'a' }
+]], [])
+
+AT_CLEANUP
+
+
+## -------------------------------------------------------------------------- ##
+## User destructor for unresolved GLR semantic value. See ##
+## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html>. ##
+## -------------------------------------------------------------------------- ##
+
+AT_SETUP([User destructor for unresolved GLR semantic value])
+
+AT_DATA_GRAMMAR([glr-regr5.y],
+[[
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ enum { MAGIC_VALUE = -1057808125 }; /* originally chosen at random */
+%}
+
+%glr-parser
+%union { int value; }
+%type <value> start
+
+%destructor {
+ if ($$ != MAGIC_VALUE)
+ {
+ fprintf (stderr, "Bad destructor call.\n");
+ exit (EXIT_FAILURE);
+ }
+} start
+
+%%
+
+start:
+ 'a' { $$ = MAGIC_VALUE; }
+ | 'a' { $$ = MAGIC_VALUE; }
+ ;
+
+%%
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse () != 1;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr5.c glr-regr5.y]], 0, [],
+[glr-regr5.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr5])
+
+AT_CHECK([[./glr-regr5]], 0, [],
+[syntax is ambiguous
+])
+
+AT_CLEANUP
+
+
+## -------------------------------------------------------------------------- ##
+## User destructor after an error during a split parse. See ##
+## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html>. ##
+## -------------------------------------------------------------------------- ##
+
+AT_SETUP([User destructor after an error during a split parse])
+
+AT_DATA_GRAMMAR([glr-regr6.y],
+[[
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+%}
+
+%glr-parser
+%union { int value; }
+%type <value> 'a'
+
+%destructor {
+ printf ("Destructor called.\n");
+} 'a'
+
+%%
+
+start: 'a' | 'a' ;
+
+%%
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse () != 1;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr6.c glr-regr6.y]], 0, [],
+[glr-regr6.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr6])
+
+AT_CHECK([[./glr-regr6]], 0,
+[Destructor called.
+],
+[syntax is ambiguous
+])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Duplicated user destructor for lookahead. See ##
+## <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00035.html>. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Duplicated user destructor for lookahead])
+
+AT_DATA_GRAMMAR([glr-regr7.y],
+[[
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ #define YYSTACKEXPANDABLE 0
+%}
+
+%glr-parser
+%union { int *count; }
+%type <count> 'a'
+
+%destructor {
+ if ((*$$)++)
+ fprintf (stderr, "Destructor called on same value twice.\n");
+} 'a'
+
+%%
+
+start:
+ stack1 start
+ | stack2 start
+ | /* empty */
+ ;
+stack1: 'a' ;
+stack2: 'a' ;
+
+%%
+
+static int
+yylex (void)
+{
+ yylval.count = (int *) malloc (sizeof (int));
+ if (!yylval.count)
+ {
+ fprintf (stderr, "Test inconclusive.\n");
+ exit (EXIT_FAILURE);
+ }
+ *yylval.count = 0;
+ return 'a';
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+]])
+
+AT_CHECK([[bison -o glr-regr7.c glr-regr7.y]], 0, [],
+[glr-regr7.y: conflicts: 2 reduce/reduce
+])
+AT_COMPILE([glr-regr7])
+
+AT_CHECK([[./glr-regr7]], 2, [],
+[memory exhausted
+])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Incorrect default location for empty right-hand sides. Adapted from bug ##
+## report by Claudia Hermann. ##
+## See http://lists.gnu.org/archive/html/bug-bison/2005-10/msg00069.html and ##
+## http://lists.gnu.org/archive/html/bug-bison/2005-10/msg00072.html ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Incorrectly initialized location for empty right-hand side in GLR])
+
+AT_DATA_GRAMMAR([glr-regr8.y],
+[[
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static void yyerror (char const *msg);
+%}
+
+%token T_CONSTANT
+%token T_PORT
+%token T_SIGNAL
+
+%glr-parser
+
+%%
+
+
+PortClause : T_PORT InterfaceDeclaration T_PORT
+ { printf("%d/%d - %d/%d - %d/%d\n",
+ @1.first_column, @1.last_column,
+ @2.first_column, @2.last_column,
+ @3.first_column, @3.last_column); }
+ ;
+
+InterfaceDeclaration : OptConstantWord %dprec 1
+ | OptSignalWord %dprec 2
+ ;
+
+OptConstantWord : /* empty */
+ | T_CONSTANT
+ ;
+
+OptSignalWord : /* empty */
+ { printf("empty: %d/%d\n", @$.first_column, @$.last_column); }
+ | T_SIGNAL
+ ;
+
+%%
+
+void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int lexIndex;
+
+int yylex (void)
+{
+ lexIndex += 1;
+ switch (lexIndex)
+ {
+ case 1:
+ yylloc.first_column = 1;
+ yylloc.last_column = 9;
+ return T_PORT;
+ case 2:
+ yylloc.first_column = 13;
+ yylloc.last_column = 17;
+ return T_PORT;
+ default:
+ return 0;
+ }
+}
+
+int
+main (void)
+{
+ yyparse();
+ return 0;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr8.c glr-regr8.y]], 0, [],
+[glr-regr8.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr8])
+
+AT_CHECK([[./glr-regr8]], 0,
+[empty: 9/9
+1/9 - 9/9 - 13/17
+],
+[])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## No users destructors if stack 0 deleted. See ##
+## <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00109.html>. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([No users destructors if stack 0 deleted])
+
+AT_DATA_GRAMMAR([glr-regr9.y],
+[[
+%{
+# include <stdio.h>
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+# define YYSTACKEXPANDABLE 0
+ static int tokens = 0;
+ static int destructors = 0;
+# define USE(Var)
+%}
+
+%glr-parser
+%union { int dummy; }
+%type <dummy> 'a'
+
+%destructor {
+ destructors += 1;
+} 'a'
+
+%%
+
+start:
+ ambig0 'a' { destructors += 2; USE ($2); }
+ | ambig1 start { destructors += 1; }
+ | ambig2 start { destructors += 1; }
+ ;
+
+ambig0: 'a' ;
+ambig1: 'a' ;
+ambig2: 'a' ;
+
+%%
+
+static int
+yylex (void)
+{
+ tokens += 1;
+ return 'a';
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ int exit_status;
+ exit_status = yyparse ();
+ if (tokens != destructors)
+ {
+ fprintf (stderr, "Tokens = %d, Destructors = %d\n", tokens, destructors);
+ return 1;
+ }
+ return !exit_status;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr9.c glr-regr9.y]], 0, [],
+[glr-regr9.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr9])
+
+AT_CHECK([[./glr-regr9]], 0, [],
+[memory exhausted
+])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Corrupted semantic options if user action cuts parse. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Corrupted semantic options if user action cuts parse])
+
+AT_DATA_GRAMMAR([glr-regr10.y],
+[[
+%{
+# include <stdio.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ #define GARBAGE_SIZE 50
+ static char garbage[GARBAGE_SIZE];
+%}
+
+%glr-parser
+%union { char *ptr; }
+%type <ptr> start
+
+%%
+
+start:
+ %dprec 2 { $$ = garbage; YYACCEPT; }
+ | %dprec 1 { $$ = garbage; YYACCEPT; }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ return 0;
+}
+
+int
+main (void)
+{
+ int i;
+ for (i = 0; i < GARBAGE_SIZE; i+=1)
+ garbage[i] = 108;
+ return yyparse ();
+}
+]])
+
+AT_CHECK([[bison -o glr-regr10.c glr-regr10.y]], 0, [],
+[glr-regr10.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr10])
+
+AT_CHECK([[./glr-regr10]], 0, [], [])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Undesirable destructors if user action cuts parse. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Undesirable destructors if user action cuts parse])
+
+AT_DATA_GRAMMAR([glr-regr11.y],
+[[
+%{
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int destructors = 0;
+# define USE(val)
+%}
+
+%glr-parser
+%union { int dummy; }
+%type <int> 'a'
+%destructor { destructors += 1; } 'a'
+
+%%
+
+start:
+ 'a' %dprec 2 { USE ($1); destructors += 1; YYACCEPT; }
+ | 'a' %dprec 1 { USE ($1); destructors += 1; YYACCEPT; }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse ();
+ if (destructors != 1)
+ {
+ fprintf (stderr, "Destructor calls: %d\n", destructors);
+ return 1;
+ }
+ return exit_status;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr11.c glr-regr11.y]], 0, [],
+[glr-regr11.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr11])
+
+AT_CHECK([[./glr-regr11]], 0, [], [])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Leaked semantic values if user action cuts parse. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Leaked semantic values if user action cuts parse])
+
+AT_DATA_GRAMMAR([glr-regr12.y],
+[[
+%glr-parser
+%union { int dummy; }
+%token PARENT_RHS_AFTER
+%type <dummy> parent_rhs_before merged PARENT_RHS_AFTER
+%destructor { parent_rhs_before_value = 0; } parent_rhs_before
+%destructor { merged_value = 0; } merged
+%destructor { parent_rhs_after_value = 0; } PARENT_RHS_AFTER
+
+%{
+# include <stdlib.h>
+ static int merge (YYSTYPE, YYSTYPE);
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int parent_rhs_before_value = 0;
+ static int merged_value = 0;
+ static int parent_rhs_after_value = 0;
+# define USE(val)
+%}
+
+%%
+
+start:
+ alt1 %dprec 1
+ | alt2 %dprec 2
+ ;
+
+alt1:
+ PARENT_RHS_AFTER {
+ USE ($1);
+ parent_rhs_after_value = 0;
+ }
+ ;
+
+alt2:
+ parent_rhs_before merged PARENT_RHS_AFTER {
+ USE (($1, $2, $3));
+ parent_rhs_before_value = 0;
+ merged_value = 0;
+ parent_rhs_after_value = 0;
+ }
+ ;
+
+parent_rhs_before:
+ {
+ USE ($$);
+ parent_rhs_before_value = 1;
+ }
+ ;
+
+merged:
+ %merge<merge> {
+ USE ($$);
+ merged_value = 1;
+ }
+ | cut %merge<merge> {
+ USE ($$);
+ merged_value = 1;
+ }
+ ;
+
+cut: { YYACCEPT; } ;
+
+%%
+
+static int
+merge (YYSTYPE s1, YYSTYPE s2)
+{
+ /* Not invoked. */
+ char dummy = s1.dummy + s2.dummy;
+ return dummy;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static int const input[] = { PARENT_RHS_AFTER, 0 };
+ static const int *inputp = input;
+ if (*inputp == PARENT_RHS_AFTER)
+ parent_rhs_after_value = 1;
+ return *inputp++;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse ();
+ if (parent_rhs_before_value)
+ {
+ fprintf (stderr, "`parent_rhs_before' destructor not called.\n");
+ exit_status = 1;
+ }
+ if (merged_value)
+ {
+ fprintf (stderr, "`merged' destructor not called.\n");
+ exit_status = 1;
+ }
+ if (parent_rhs_after_value)
+ {
+ fprintf (stderr, "`PARENT_RHS_AFTER' destructor not called.\n");
+ exit_status = 1;
+ }
+ return exit_status;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr12.c glr-regr12.y]], 0, [],
+[glr-regr12.y: conflicts: 1 shift/reduce, 1 reduce/reduce
+])
+AT_COMPILE([glr-regr12])
+
+AT_CHECK([[./glr-regr12]], 0, [], [])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Incorrect lookahead during deterministic GLR. See ##
+## <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00017.html> and ##
+## <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00060.html>. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Incorrect lookahead during deterministic GLR])
+
+AT_DATA_GRAMMAR([glr-regr13.y],
+[[
+/* Tests:
+ - Defaulted state with initial yychar: yychar == YYEMPTY.
+ - Nondefaulted state: yychar != YYEMPTY.
+ - Defaulted state after lookahead: yychar != YYEMPTY.
+ - Defaulted state after shift: yychar == YYEMPTY.
+ - User action changing the lookahead. */
+
+%{
+ #include <stdio.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static void print_look_ahead (char const *);
+ #define USE(value)
+%}
+
+%union { char value; }
+%type <value> 'a' 'b'
+%glr-parser
+%locations
+
+%%
+
+start:
+ defstate_init defstate_shift 'b' change_lookahead 'a' {
+ USE ($3);
+ print_look_ahead ("start <- defstate_init defstate_shift 'b'");
+ }
+ ;
+defstate_init:
+ {
+ print_look_ahead ("defstate_init <- empty string");
+ }
+ ;
+defstate_shift:
+ nondefstate defstate_look 'a' {
+ USE ($3);
+ print_look_ahead ("defstate_shift <- nondefstate defstate_look 'a'");
+ }
+ ;
+defstate_look:
+ {
+ print_look_ahead ("defstate_look <- empty string");
+ }
+ ;
+nondefstate:
+ {
+ print_look_ahead ("nondefstate <- empty string");
+ }
+ | 'b' {
+ USE ($1);
+ print_look_ahead ("nondefstate <- 'b'");
+ }
+ ;
+change_lookahead:
+ {
+ yychar = 'a';
+ }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "ab";
+ static int i = 0;
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = i + 1;
+ yylval.value = input[i] + 'A' - 'a';
+ return input[i++];
+}
+
+static void
+print_look_ahead (char const *reduction)
+{
+ printf ("%s:\n yychar=", reduction);
+ if (yychar == YYEMPTY)
+ printf ("YYEMPTY");
+ else if (yychar == YYEOF)
+ printf ("YYEOF");
+ else
+ {
+ printf ("'%c', yylval='", yychar);
+ if (yylval.value > ' ')
+ printf ("%c", yylval.value);
+ printf ("', yylloc=(%d,%d),(%d,%d)",
+ yylloc.first_line, yylloc.first_column,
+ yylloc.last_line, yylloc.last_column);
+ }
+ printf ("\n");
+}
+
+int
+main (void)
+{
+ yychar = '#'; /* Not a token in the grammar. */
+ yylval.value = '!';
+ return yyparse ();
+}
+]])
+
+AT_CHECK([[bison -o glr-regr13.c glr-regr13.y]], 0, [], [])
+AT_COMPILE([glr-regr13])
+
+AT_CHECK([[./glr-regr13]], 0,
+[defstate_init <- empty string:
+ yychar=YYEMPTY
+nondefstate <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+defstate_look <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+defstate_shift <- nondefstate defstate_look 'a':
+ yychar=YYEMPTY
+start <- defstate_init defstate_shift 'b':
+ yychar=YYEMPTY
+], [])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Incorrect lookahead during nondeterministic GLR. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Incorrect lookahead during nondeterministic GLR])
+
+AT_DATA_GRAMMAR([glr-regr14.y],
+[[
+/* Tests:
+ - Conflicting actions (split-off parse, which copies lookahead need,
+ which is necessarily yytrue) and nonconflicting actions (non-split-off
+ parse) for nondefaulted state: yychar != YYEMPTY.
+ - Merged deferred actions (lookahead need and RHS from different stack
+ than the target state) and nonmerged deferred actions (same stack).
+ - Defaulted state after lookahead: yychar != YYEMPTY.
+ - Defaulted state after shift: yychar == YYEMPTY.
+ - yychar != YYEMPTY but lookahead need is yyfalse (a previous stack has
+ seen the lookahead but current stack has not).
+ - Exceeding stack capacity (stack explosion), and thus reallocating
+ lookahead need array.
+ Note that it does not seem possible to see the initial yychar value during
+ nondeterministic operation since:
+ - In order to preserve the initial yychar, only defaulted states may be
+ entered.
+ - If only defaulted states are entered, there are no conflicts, so
+ nondeterministic operation does not start. */
+
+%union { char value; }
+
+%{
+ #include <stdio.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static void print_look_ahead (char const *);
+ static char merge (union YYSTYPE, union YYSTYPE);
+ #define USE(value)
+%}
+
+%type <value> 'a' 'b' 'c' 'd' stack_explosion
+%glr-parser
+%locations
+
+%%
+
+start:
+ merge 'c' stack_explosion {
+ USE ($2); USE ($3);
+ print_look_ahead ("start <- merge 'c' stack_explosion");
+ }
+ ;
+
+/* When merging the 2 deferred actions, the lookahead needs are different. */
+merge:
+ nonconflict1 'a' 'b' nonconflict2 %dprec 1 {
+ USE ($2); USE ($3);
+ print_look_ahead ("merge <- nonconflict1 'a' 'b' nonconflict2");
+ }
+ | conflict defstate_look 'a' nonconflict2 'b' defstate_shift %dprec 2 {
+ USE ($3); USE ($5);
+ print_look_ahead ("merge <- conflict defstate_look 'a' nonconflict2 'b'"
+ " defstate_shift");
+ }
+ ;
+
+nonconflict1:
+ {
+ print_look_ahead ("nonconflict1 <- empty string");
+ }
+ ;
+nonconflict2:
+ {
+ print_look_ahead ("nonconflict2 <- empty string");
+ }
+ | 'a' {
+ USE ($1);
+ print_look_ahead ("nonconflict2 <- 'a'");
+ }
+ ;
+conflict:
+ {
+ print_look_ahead ("conflict <- empty string");
+ }
+ ;
+defstate_look:
+ {
+ print_look_ahead ("defstate_look <- empty string");
+ }
+ ;
+
+/* yychar != YYEMPTY but lookahead need is yyfalse. */
+defstate_shift:
+ {
+ print_look_ahead ("defstate_shift <- empty string");
+ }
+ ;
+
+stack_explosion:
+ { $$ = '\0'; }
+ | alt1 stack_explosion %merge<merge> { $$ = $2; }
+ | alt2 stack_explosion %merge<merge> { $$ = $2; }
+ | alt3 stack_explosion %merge<merge> { $$ = $2; }
+ ;
+alt1:
+ 'd' no_look {
+ USE ($1);
+ if (yychar != 'd' && yychar != YYEOF)
+ {
+ fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+ }
+ }
+ ;
+alt2:
+ 'd' no_look {
+ USE ($1);
+ if (yychar != 'd' && yychar != YYEOF)
+ {
+ fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+ }
+ }
+ ;
+alt3:
+ 'd' no_look {
+ USE ($1);
+ if (yychar != 'd' && yychar != YYEOF)
+ {
+ fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+ }
+ }
+ ;
+no_look:
+ {
+ if (yychar != YYEMPTY)
+ {
+ fprintf (stderr,
+ "Found lookahead where shouldn't during stack explosion.\n");
+ }
+ }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "abcdddd";
+ static int i = 0;
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = i + 1;
+ yylval.value = input[i] + 'A' - 'a';
+ return input[i++];
+}
+
+static void
+print_look_ahead (char const *reduction)
+{
+ printf ("%s:\n yychar=", reduction);
+ if (yychar == YYEMPTY)
+ printf ("YYEMPTY");
+ else if (yychar == YYEOF)
+ printf ("YYEOF");
+ else
+ {
+ printf ("'%c', yylval='", yychar);
+ if (yylval.value > ' ')
+ printf ("%c", yylval.value);
+ printf ("', yylloc=(%d,%d),(%d,%d)",
+ yylloc.first_line, yylloc.first_column,
+ yylloc.last_line, yylloc.last_column);
+ }
+ printf ("\n");
+}
+
+static char
+merge (union YYSTYPE s1, union YYSTYPE s2)
+{
+ char dummy = s1.value + s2.value;
+ return dummy;
+}
+
+int
+main (void)
+{
+ yychar = '#'; /* Not a token in the grammar. */
+ yylval.value = '!';
+ return yyparse ();
+}
+]])
+
+AT_CHECK([[bison -o glr-regr14.c glr-regr14.y]], 0, [],
+[glr-regr14.y: conflicts: 3 reduce/reduce
+])
+AT_COMPILE([glr-regr14])
+
+AT_CHECK([[./glr-regr14]], 0,
+[conflict <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+defstate_look <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+nonconflict2 <- empty string:
+ yychar='b', yylval='B', yylloc=(1,2),(1,2)
+defstate_shift <- empty string:
+ yychar=YYEMPTY
+merge <- conflict defstate_look 'a' nonconflict2 'b' defstate_shift:
+ yychar=YYEMPTY
+start <- merge 'c' stack_explosion:
+ yychar=YYEOF
+], [])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Leaked semantic values when reporting ambiguity. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Leaked semantic values when reporting ambiguity])
+
+AT_DATA_GRAMMAR([glr-regr15.y],
+[[
+%glr-parser
+%destructor { parent_rhs_before_value = 0; } parent_rhs_before
+
+%{
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int parent_rhs_before_value = 0;
+# define USE(val)
+%}
+
+%%
+
+start:
+ alt1 %dprec 1
+ | alt2 %dprec 2
+ ;
+
+/* This stack must be merged into the other stacks *last* (added at the
+ beginning of the semantic options list) so that yyparse will choose to clean
+ it up rather than the tree for which some semantic actions have been
+ performed. Thus, if yyreportAmbiguity longjmp's to yyparse, the values from
+ those other trees are not cleaned up. */
+alt1: ;
+
+alt2:
+ parent_rhs_before ambiguity {
+ USE ($1);
+ parent_rhs_before_value = 0;
+ }
+ ;
+
+parent_rhs_before:
+ {
+ USE ($$);
+ parent_rhs_before_value = 1;
+ }
+ ;
+
+ambiguity: ambiguity1 | ambiguity2 ;
+ambiguity1: ;
+ambiguity2: ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ return 0;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse () != 1;
+ if (parent_rhs_before_value)
+ {
+ fprintf (stderr, "`parent_rhs_before' destructor not called.\n");
+ exit_status = 1;
+ }
+ return exit_status;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr15.c glr-regr15.y]], 0, [],
+[glr-regr15.y: conflicts: 2 reduce/reduce
+])
+AT_COMPILE([glr-regr15])
+
+AT_CHECK([[./glr-regr15]], 0, [],
+[syntax is ambiguous
+])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Leaked lookahead after nondeterministic parse syntax error. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Leaked lookahead after nondeterministic parse syntax error])
+AT_DATA_GRAMMAR([glr-regr16.y],
+[[
+%glr-parser
+%destructor { lookahead_value = 0; } 'b'
+
+%{
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int lookahead_value = 0;
+# define USE(val)
+%}
+
+%%
+
+start: alt1 'a' | alt2 'a' ;
+alt1: ;
+alt2: ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "ab";
+ if (*input == 'b')
+ lookahead_value = 1;
+ return *input++;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse () != 1;
+ if (lookahead_value)
+ {
+ fprintf (stderr, "Lookahead destructor not called.\n");
+ exit_status = 1;
+ }
+ return exit_status;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr16.c glr-regr16.y]], 0, [],
+[glr-regr16.y: conflicts: 1 reduce/reduce
+])
+AT_COMPILE([glr-regr16])
+
+AT_CHECK([[./glr-regr16]], 0, [],
+[syntax error
+])
+
+AT_CLEANUP
+
+
+## ------------------------------------------------------------------------- ##
+## Uninitialized location when reporting ambiguity. ##
+## ------------------------------------------------------------------------- ##
+
+AT_SETUP([Uninitialized location when reporting ambiguity])
+AT_DATA_GRAMMAR([glr-regr17.y],
+[[
+%glr-parser
+%locations
+%pure-parser
+%error-verbose
+
+%union { int dummy; }
+
+%{
+ static void yyerror (YYLTYPE *, char const *);
+ static int yylex (YYSTYPE *, YYLTYPE *);
+%}
+
+%initial-action {
+ @$.first_line = 1;
+ @$.first_column = 1;
+ @$.last_line = 1;
+ @$.last_column = 1;
+}
+
+%%
+
+/* Tests the case of an empty RHS that has inherited the location of the
+ previous nonterminal, which is unresolved. That location is reported as the
+ last position of the ambiguity. */
+start: ambig1 empty1 | ambig2 empty2 ;
+
+/* Tests multiple levels of yyresolveLocations recursion. */
+ambig1: sub_ambig1 | sub_ambig2 ;
+ambig2: sub_ambig1 | sub_ambig2 ;
+
+/* Tests the case of a non-empty RHS as well as the case of an empty RHS that
+ has inherited the initial location. The empty RHS's location is reported as
+ the first position in the ambiguity. */
+sub_ambig1: empty1 'a' 'b' ;
+sub_ambig2: empty2 'a' 'b' ;
+empty1: ;
+empty2: ;
+
+%%
+
+static void
+yyerror (YYLTYPE *locp, char const *msg)
+{
+ fprintf (stderr, "Error at %d.%d-%d.%d: %s.\n", locp->first_line,
+ locp->first_column, locp->last_line, locp->last_column, msg);
+}
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static char const input[] = "ab";
+ static char const *inputp = input;
+ lvalp->dummy = 0;
+ llocp->first_line = llocp->last_line = 2;
+ llocp->first_column = inputp - input + 1;
+ llocp->last_column = llocp->first_column + 1;
+ return *inputp++;
+}
+
+int
+main (void)
+{
+ return yyparse () != 1;
+}
+]])
+
+AT_CHECK([[bison -o glr-regr17.c glr-regr17.y]], 0, [],
+[glr-regr17.y: conflicts: 3 reduce/reduce
+])
+AT_COMPILE([glr-regr17])
+
+AT_CHECK([[./glr-regr17]], 0, [],
+[Error at 1.1-2.3: syntax is ambiguous.
+])
+
+AT_CLEANUP
diff --git a/tests/headers.at b/tests/headers.at
new file mode 100644
index 0000000..a348d65
--- /dev/null
+++ b/tests/headers.at
@@ -0,0 +1,137 @@
+# Bison Parser Headers. -*- Autotest -*-
+# Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Parser Headers.]])
+
+
+## ---------------------- ##
+## %union and --defines. ##
+## ---------------------- ##
+
+
+AT_SETUP([%union and --defines])
+
+AT_DATA([input.y],
+[%union
+{
+ int integer;
+ char *string ;
+}
+%%
+exp: {};
+])
+
+AT_CHECK([bison --defines input.y])
+
+AT_CLEANUP
+
+
+
+## --------------------- ##
+## Invalid CPP headers. ##
+## --------------------- ##
+
+# AT_TEST_CPP_GUARD_H([INPUT-FILE-BASE)
+# -------------------------------------
+m4_define([AT_TEST_CPP_GUARD_H],
+[AT_SETUP([Invalid CPP guards: $1])
+
+# Possibly create inner directories.
+dirname=`AS_DIRNAME([$1])`
+AS_MKDIR_P([$dirname])
+
+AT_DATA_GRAMMAR([$1.y],
+[%{
+#include <$1.h>
+void yyerror (const char *);
+int yylex (void);
+%}
+%%
+dummy:;
+%%
+#include <$1.h>
+])
+
+AT_CHECK([bison --defines=$1.h --output=y.tab.c $1.y])
+
+AT_COMPILE([y.tab.o], [-I. -c y.tab.c])
+
+AT_CLEANUP
+])
+
+AT_TEST_CPP_GUARD_H([input/input])
+AT_TEST_CPP_GUARD_H([9foo])
+
+
+
+## ---------------- ##
+## export YYLTYPE. ##
+## ---------------- ##
+
+
+AT_SETUP([export YYLTYPE])
+
+AT_DATA_GRAMMAR([input.y],
+[%locations
+
+%name-prefix="my_"
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+static int
+my_lex (void)
+{
+ return EOF;
+}
+
+static void
+my_error (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+%}
+%%
+exp:;
+])
+
+AT_CHECK([bison --defines -o input.c input.y])
+
+# YYLTYPE should be defined, and MY_LLOC declared.
+AT_DATA([caller.c],
+[[#include "input.h"
+YYLTYPE *my_llocp = &my_lloc;
+
+int my_parse (void);
+
+int
+main (void)
+{
+ return my_parse ();
+}
+]])
+
+# Link and execute, just to make sure everything is fine (and in
+# particular, that MY_LLOC is indeed defined somewhere).
+AT_COMPILE([caller.o], [-c caller.c])
+AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([caller], [caller.o input.o])
+AT_PARSER_CHECK([./caller])
+
+AT_CLEANUP
diff --git a/tests/input.at b/tests/input.at
new file mode 100644
index 0000000..82fbe06
--- /dev/null
+++ b/tests/input.at
@@ -0,0 +1,396 @@
+# Checking the Bison scanner. -*- Autotest -*-
+# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Input Processing.]])
+
+# Mostly test that we are robust to mistakes.
+
+
+## ------------ ##
+## Invalid $n. ##
+## ------------ ##
+
+AT_SETUP([Invalid dollar-n])
+
+AT_DATA([input.y],
+[[%%
+exp: { $$ = $1 ; };
+]])
+
+AT_CHECK([bison input.y], [1], [],
+[[input.y:2.13-14: integer out of range: `$1'
+]])
+
+AT_CLEANUP
+
+
+## ------------ ##
+## Invalid @n. ##
+## ------------ ##
+
+AT_SETUP([Invalid @n])
+
+AT_DATA([input.y],
+[[%%
+exp: { @$ = @1 ; };
+]])
+
+AT_CHECK([bison input.y], [1], [],
+[[input.y:2.13-14: integer out of range: `@1'
+]])
+
+AT_CLEANUP
+
+
+## -------------- ##
+## Type Clashes. ##
+## -------------- ##
+
+AT_SETUP([Type Clashes])
+
+AT_DATA([input.y],
+[[%token foo
+%type <bar> exp
+%%
+exp: foo {} foo
+ | foo
+ | /* Empty. */
+ ;
+]])
+
+AT_CHECK([bison input.y], [], [],
+[[input.y:4.6-15: warning: type clash on default action: <bar> != <>
+input.y:5.6-8: warning: type clash on default action: <bar> != <>
+input.y:6.5: warning: empty rule for typed nonterminal, and no action
+]])
+
+AT_CLEANUP
+
+
+## --------------- ##
+## Unused values. ##
+## --------------- ##
+
+AT_SETUP([Unused values])
+
+AT_DATA([input.y],
+[[%token <integer> INT
+%type <integer> a b c d e f g h i j k l
+%destructor { destroy ($$); } INT a b c d e f g h i j k l
+%%
+start:
+ 'a' a { $2 } | 'b' b { $2 } | 'c' c { $2 } | 'd' d { $2 } | 'e' e { $2 }
+| 'f' f { $2 } | 'g' g { $2 } | 'h' h { $2 } | 'i' i { $2 } | 'j' j { $2 }
+| 'k' k { $2 } | 'l' l { $2 }
+;
+
+a: INT | INT { } INT { } INT { };
+b: INT | /* empty */;
+c: INT | INT { $1 } INT { } INT { };
+d: INT | INT { } INT { $1 } INT { };
+e: INT | INT { } INT { } INT { $1 };
+f: INT | INT { } INT { } INT { $$ = $1 + $3 + $5; };
+g: INT | INT { $$ } INT { $$ } INT { };
+h: INT | INT { $$ } INT { $$ = $2 } INT { };
+i: INT | INT INT { } { $$ = $1 + $2; };
+j: INT | INT INT { $<integer>$ = 1; } { $$ = $1 + $2; };
+k: INT | INT INT { $$; } { $$ = $3; } { };
+l: INT | INT { $$ = $1; } INT { $$ = $2 + $3; } INT { $$ = $4 + $5; };
+
+]])
+
+AT_CHECK([bison input.y], [], [],
+[[input.y:11.10-32: warning: unset value: $$
+input.y:11.10-32: warning: unused value: $1
+input.y:11.10-32: warning: unused value: $3
+input.y:11.10-32: warning: unused value: $5
+input.y:12.9: warning: empty rule for typed nonterminal, and no action
+input.y:13.10-35: warning: unset value: $$
+input.y:13.10-35: warning: unused value: $3
+input.y:13.10-35: warning: unused value: $5
+input.y:14.10-35: warning: unset value: $$
+input.y:14.10-35: warning: unused value: $3
+input.y:14.10-35: warning: unused value: $5
+input.y:15.10-36: warning: unset value: $$
+input.y:15.10-36: warning: unused value: $3
+input.y:15.10-36: warning: unused value: $5
+input.y:17.10-38: warning: unset value: $$
+input.y:17.10-38: warning: unused value: $1
+input.y:17.10-38: warning: unused value: $2
+input.y:17.10-38: warning: unused value: $3
+input.y:17.10-38: warning: unused value: $4
+input.y:17.10-38: warning: unused value: $5
+input.y:18.10-43: warning: unset value: $$
+input.y:18.10-43: warning: unused value: $1
+input.y:18.10-43: warning: unused value: $3
+input.y:18.10-43: warning: unused value: $4
+input.y:18.10-43: warning: unused value: $5
+input.y:20.10-55: warning: unused value: $3
+input.y:21.10-41: warning: unset value: $$
+input.y:21.10-41: warning: unused value: $1
+input.y:21.10-41: warning: unused value: $2
+input.y:21.10-41: warning: unused value: $4
+]])
+
+AT_CLEANUP
+
+
+## ---------------------- ##
+## Incompatible Aliases. ##
+## ---------------------- ##
+
+AT_SETUP([Incompatible Aliases])
+
+AT_DATA([input.y],
+[[%token foo "foo"
+
+%type <bar> foo
+%printer {bar} foo
+%destructor {bar} foo
+%left foo
+
+%type <baz> "foo"
+%printer {baz} "foo"
+%destructor {baz} "foo"
+%left "foo"
+
+%%
+exp: foo;
+]])
+
+AT_CHECK([bison input.y], [1], [],
+[[input.y:8.7-11: %type redeclaration for foo
+input.y:3.7-11: first declaration
+input.y:10.13-17: %destructor redeclaration for foo
+input.y:5.13-17: first declaration
+input.y:9.10-14: %printer redeclaration for foo
+input.y:10.13-17: first declaration
+input.y:11.1-5: %left redeclaration for foo
+input.y:6.1-5: first declaration
+]])
+
+AT_CLEANUP
+
+
+
+## ----------------------- ##
+## Torturing the Scanner. ##
+## ----------------------- ##
+
+# Be sure to compile and run, so that the C compiler checks what
+# we do.
+
+AT_SETUP([Torturing the Scanner])
+
+
+AT_DATA([input.y], [])
+AT_CHECK([bison input.y], [1], [],
+[[input.y:1.1: syntax error, unexpected end of file
+]])
+
+
+AT_DATA([input.y],
+[{}
+])
+AT_CHECK([bison input.y], [1], [],
+[[input.y:1.1-2: syntax error, unexpected {...}
+]])
+
+
+AT_DATA_GRAMMAR([input.y],
+[[%{
+/* This is seen in GCC: a %{ and %} in middle of a comment. */
+const char *foo = "So %{ and %} can be here too.";
+
+#if 0
+/* These examples test Bison while not stressing C compilers too much.
+ Many C compilers mishandle backslash-newlines, so this part of the
+ test is inside "#if 0". The comment and string are written so that
+ the "#endif" will be seen regardless of the C compiler bugs that we
+ know about, namely:
+
+ HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
+ comment.
+
+ The Apple Darwin compiler (as of late 2002) mishandles
+ \\[newline]' within a character constant.
+
+ */
+
+/\
+* A comment with backslash-newlines in it. %} *\
+\
+/
+/* { Close the above comment, if the C compiler mishandled it. */
+
+char str[] = "\\
+" A string with backslash-newlines in it %{ %} \\
+\
+"";
+
+char apostrophe = '\'';
+#endif
+
+#include <stdio.h>
+%}
+/* %{ and %} can be here too. */
+
+%{
+/* Exercise pre-prologue dependency to %union. */
+typedef int value;
+%}
+
+/* Exercise M4 quoting: '@:>@@:>@', 0. */
+
+/* Also exercise %union. */
+%union
+{
+ value ival; /* A comment to exercise an old bug. */
+};
+
+
+/* Exercise post-prologue dependency to %union. */
+%{
+static YYSTYPE value_as_yystype (value val);
+
+/* Exercise quotes in declarations. */
+char quote[] = "@:>@@:>@,";
+%}
+
+%{
+static void yyerror (const char *s);
+static int yylex (void);
+%}
+
+%type <ival> '@<:@'
+
+/* Exercise quotes in strings. */
+%token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x1\1"
+
+%%
+/* Exercise M4 quoting: '@:>@@:>@', @<:@, 1. */
+exp: '@<:@' '\1' two '$' '@' '{' oline output.or.oline.opt
+ {
+ /* Exercise quotes in braces. */
+ char tmp[] = "@<:@%c@:>@,\n";
+ printf (tmp, $1);
+ }
+;
+
+two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
+oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
+output.or.oline.opt: ;|oline;;|output;;;
+output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
+%%
+/* Exercise M4 quoting: '@:>@@:>@', @<:@, 2. */
+
+static YYSTYPE
+value_as_yystype (value val)
+{
+ YYSTYPE res;
+ res.ival = val;
+ return res;
+}
+
+static int
+yylex (void)
+{
+ static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\
+#output "; /* "
+ */
+ yylval = value_as_yystype (*input);
+ return *input++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+]])
+
+# Pacify Emacs'font-lock-mode: "
+
+AT_DATA([main.c],
+[[typedef int value;
+#include "input.h"
+
+int yyparse (void);
+
+int
+main (void)
+{
+ return yyparse ();
+}
+]])
+
+AT_CHECK([bison -d -v -o input.c input.y])
+AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([main.o], [-c main.c])
+AT_COMPILE([input], [input.o main.o])
+AT_PARSER_CHECK([./input], 0,
+[[[@<:@],
+]])
+
+AT_CLEANUP
+
+
+## ---------------------- ##
+## Typed symbol aliases. ##
+## ---------------------- ##
+
+AT_SETUP([Typed symbol aliases])
+
+# Bison 2.0 broke typed symbol aliases - ensure they work.
+
+AT_DATA_GRAMMAR([input.y],
+[[%union
+{
+ int val;
+};
+%token <val> MY_TOKEN "MY TOKEN"
+%type <val> exp
+%%
+exp: "MY TOKEN";
+%%
+]])
+
+AT_CHECK([bison -o input.c input.y])
+
+AT_CLEANUP
+
+
+## --------- ##
+## Require. ##
+## --------- ##
+
+m4_define([AT_CHECK_REQUIRE],
+[AT_SETUP([Require $1])
+AT_DATA_GRAMMAR([input.y],
+[[%require "$1";
+%%
+empty_file:;
+]])
+AT_CHECK([bison -o input.c input.y], $2, [], ignore)
+AT_CLEANUP
+])
+
+AT_CHECK_REQUIRE(1.0, 0)
+AT_CHECK_REQUIRE(AT_PACKAGE_VERSION, 0)
+## FIXME: Some day augment this version number.
+AT_CHECK_REQUIRE(100.0, 63)
diff --git a/tests/local.at b/tests/local.at
new file mode 100644
index 0000000..55ba824
--- /dev/null
+++ b/tests/local.at
@@ -0,0 +1,218 @@
+# Process this -*- Autotest -*- file with autom4te.
+
+# Macros for the GNU Bison Test suite.
+# Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# We want a recent Autotest.
+m4_version_prereq([2.58])
+
+
+## ------------------------------- ##
+## Macros decoding Bison options. ##
+## ------------------------------- ##
+
+
+# AT_BISON_OPTION_PUSHDEFS([BISON-OPTIONS])
+# -----------------------------------------
+m4_define([AT_BISON_OPTION_PUSHDEFS],
+[_AT_BISON_OPTION_PUSHDEFS($[1], $[2], [$1])])
+
+
+# _AT_BISON_OPTION_PUSHDEFS($1, $2, [BISON-OPTIONS])
+# --------------------------------------------------
+# This macro works around the impossibility to define macros
+# inside macros, because issuing `[$1]' is not possible in M4 :(.
+# This sucks hard, GNU M4 should really provide M5 like $$1.
+m4_define([_AT_BISON_OPTION_PUSHDEFS],
+[m4_if([$1$2], $[1]$[2], [],
+ [m4_fatal([$0: Invalid arguments: $@])])dnl
+m4_pushdef([AT_LALR1_CC_IF],
+[m4_bmatch([$3], ["lalr1.cc"], [$1], [$2])])
+m4_pushdef([AT_GLR_CC_IF],
+[m4_bmatch([$3], ["glr.cc"], [$1], [$2])])
+m4_pushdef([AT_SKEL_CC_IF],
+[m4_bmatch([$3], ["\(glr\|lalr1\).cc"], [$1], [$2])])
+m4_pushdef([AT_GLR_IF],
+[m4_bmatch([$3], [%glr-parser], [$1], [$2])])
+# Using yacc.c?
+m4_pushdef([AT_YACC_IF],
+[m4_bmatch([$3], [%glr-parser\|%skeleton], [$2], [$1])])
+m4_pushdef([AT_PARAM_IF],
+[m4_bmatch([$3], [%parse-param], [$1], [$2])])
+m4_pushdef([AT_LOCATION_IF],
+[m4_bmatch([$3], [%locations], [$1], [$2])])
+m4_pushdef([AT_PURE_IF],
+[m4_bmatch([$3], [%pure-parser], [$1], [$2])])
+m4_pushdef([AT_PURE_AND_LOC_IF],
+[m4_bmatch([$3], [%locations.*%pure-parser\|%pure-parser.*%locations],
+ [$1], [$2])])
+m4_pushdef([AT_GLR_OR_PARAM_IF],
+[m4_bmatch([$3], [%glr-parser\|%parse-param], [$1], [$2])])
+m4_pushdef([AT_NAME_PREFIX],
+[m4_bmatch([$3], [%name-prefix=".*"],
+ [m4_bregexp([$3], [name-prefix="\([^"]*\)"], [\1])],
+ [yy])])
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+m4_pushdef([AT_YYERROR_ARG_LOC_IF],
+[AT_GLR_OR_PARAM_IF([AT_PURE_AND_LOC_IF([$1], [$2])],
+ [$2])])
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+m4_pushdef([AT_YYERROR_SEES_LOC_IF],
+[AT_LOCATION_IF([AT_YACC_IF([AT_PURE_IF([AT_PARAM_IF([$1], [$2])],
+ [$1])],
+ [$1])],
+ [$2])])
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+m4_pushdef([AT_PURE_LEX_IF],
+[AT_PURE_IF([$1],
+ [AT_SKEL_CC_IF([$1], [$2])])])
+
+AT_PURE_LEX_IF(
+[m4_pushdef([AT_LOC], [(*llocp)])
+ m4_pushdef([AT_VAL], [(*lvalp)])
+ m4_pushdef([AT_LEX_FORMALS],
+ [YYSTYPE *lvalp[]AT_LOCATION_IF([, YYLTYPE *llocp])])
+ m4_pushdef([AT_LEX_ARGS],
+ [lvalp[]AT_LOCATION_IF([, llocp])])
+ m4_pushdef([AT_USE_LEX_ARGS],
+ [(void) lvalp;AT_LOCATION_IF([(void) llocp])])
+ m4_pushdef([AT_LEX_PRE_FORMALS],
+ [AT_LEX_FORMALS, ])
+ m4_pushdef([AT_LEX_PRE_ARGS],
+ [AT_LEX_ARGS, ])
+],
+[m4_pushdef([AT_LOC], [(yylloc)])
+ m4_pushdef([AT_VAL], [(yylval)])
+ m4_pushdef([AT_LEX_FORMALS], [void])
+ m4_pushdef([AT_LEX_ARGS], [])
+ m4_pushdef([AT_USE_LEX_ARGS], [])
+ m4_pushdef([AT_LEX_PRE_FORMALS], [])
+ m4_pushdef([AT_LEX_PRE_ARGS], [])
+])
+])# _AT_BISON_OPTION_PUSHDEFS
+
+
+# AT_BISON_OPTION_POPDEFS
+# -----------------------
+m4_define([AT_BISON_OPTION_POPDEFS],
+[m4_popdef([AT_LEX_PRE_ARGS])
+m4_popdef([AT_LEX_PRE_FORMALS])
+m4_popdef([AT_USE_LEX_ARGS])
+m4_popdef([AT_LEX_ARGS])
+m4_popdef([AT_LEX_FORMALS])
+m4_popdef([AT_VAL])
+m4_popdef([AT_LOC])
+m4_popdef([AT_PURE_LEX_IF])
+m4_popdef([AT_YYERROR_SEES_LOC_IF])
+m4_popdef([AT_YYERROR_ARG_LOC_IF])
+m4_popdef([AT_NAME_PREFIX])
+m4_popdef([AT_GLR_OR_PARAM_IF])
+m4_popdef([AT_PURE_AND_LOC_IF])
+m4_popdef([AT_LOCATION_IF])
+m4_popdef([AT_PARAM_IF])
+m4_popdef([AT_YACC_IF])
+m4_popdef([AT_GLR_IF])
+m4_popdef([AT_SKEL_CC_IF])
+m4_popdef([AT_GLR_CC_IF])
+m4_popdef([AT_LALR1_CC_IF])
+])# AT_BISON_OPTION_POPDEFS
+
+
+
+## -------------------------- ##
+## Generating Grammar Files. ##
+## -------------------------- ##
+
+
+# AT_DATA_GRAMMAR_PROLOGUE
+# ------------------------
+# The prologue that should be included in any grammar which parser is
+# meant to be compiled.
+m4_define([AT_DATA_GRAMMAR_PROLOGUE],
+[[%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}]
+])
+
+
+# AT_DATA_GRAMMAR(NAME, CONTENT)
+# ------------------------------
+# Generate the file NAME, which CONTENT is preceded by
+# AT_DATA_GRAMMAR_PROLOGUE.
+m4_define([AT_DATA_GRAMMAR],
+[AT_DATA([$1],
+[AT_DATA_GRAMMAR_PROLOGUE
+$2])
+])
+
+
+## ------------------------ ##
+## Compiling C, C++ Files. ##
+## ------------------------ ##
+
+
+# AT_COMPILE(OUTPUT, [SOURCES = OUTPUT.c])
+# ----------------------------------------
+# Compile SOURCES into OUTPUT. If OUTPUT does not contain '.',
+# assume that we are linking too; this is a hack.
+m4_define([AT_COMPILE],
+[AT_CHECK([$CC $CFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.c])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
+ 0, [ignore], [ignore])])
+
+# AT_COMPILE_CXX(OUTPUT, [SOURCES = OUTPUT.cc])
+# --------------------------------------------
+# Compile SOURCES into OUTPUT. If OUTPUT does not contain '.',
+# assume that we are linking too; this is a hack.
+# If the C++ compiler does not work, ignore the test.
+m4_define([AT_COMPILE_CXX],
+[AT_KEYWORDS(c++)
+AT_CHECK([$BISON_CXX_WORKS], 0, ignore, ignore)
+AT_CHECK([$CXX $CXXFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.cc])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
+ 0, [ignore], [ignore])])
+
+
+
+## ---------------------------- ##
+## Running a generated parser. ##
+## ---------------------------- ##
+
+# AT_PARSER_CHECK(COMMAND, EXIT-STATUS, EXPOUT, EXPERR)
+# -----------------------------------------------------
+# So that we can run `./testsuite PREPARSER='valgrind -q' for instance.
+m4_define([AT_PARSER_CHECK],
+[AT_CHECK([$PREPARSER $1], [$2], [$3], [$4])])
+
+
+
+
+## ----------------------- ##
+## Launch the test suite. ##
+## ----------------------- ##
+
+AT_INIT
+
+AT_TESTED([bison])
diff --git a/tests/output.at b/tests/output.at
new file mode 100644
index 0000000..8ddde46
--- /dev/null
+++ b/tests/output.at
@@ -0,0 +1,114 @@
+# Checking the output filenames. -*- Autotest -*-
+# Copyright (C) 2000, 2001, 2002, 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Output file names.]])
+
+
+# AT_CHECK_OUTPUT(INPUT-FILE, [DIRECTIVES], [FLAGS], EXPECTED-FILES, [SHELLIO],
+# [ADDITIONAL-TESTS])
+# -----------------------------------------------------------------------------
+m4_define([AT_CHECK_OUTPUT],
+[AT_SETUP([Output files: $2 $3 $5])
+case "$1" in
+ */*) mkdir `echo "$1" | sed 's,/.*,,'`;;
+esac
+AT_DATA([$1],
+[[$2
+%%
+foo: {};
+]])
+
+AT_CHECK([bison $3 $1 $5], 0)
+AT_CHECK([ls $4], [], [ignore])
+$6
+AT_CLEANUP
+])
+
+AT_CHECK_OUTPUT([foo.y], [], [-dv],
+ [foo.output foo.tab.c foo.tab.h])
+AT_CHECK_OUTPUT([foo.y], [], [-dv],
+ [foo.output foo.tab.c foo.tab.h],
+ [>&-])
+AT_CHECK_OUTPUT([foo.y], [], [-dv -o foo.c],
+ [foo.c foo.h foo.output])
+AT_CHECK_OUTPUT([foo.y], [], [-dv -o foo.tab.c],
+ [foo.output foo.tab.c foo.tab.h])
+AT_CHECK_OUTPUT([foo.y], [], [-dv -y],
+ [y.output y.tab.c y.tab.h])
+AT_CHECK_OUTPUT([foo.y], [], [-dv -b bar],
+ [bar.output bar.tab.c bar.tab.h])
+AT_CHECK_OUTPUT([foo.y], [], [-dv -g -o foo.c],
+ [foo.c foo.h foo.output foo.vcg])
+
+
+AT_CHECK_OUTPUT([foo.y], [%defines %verbose], [],
+ [foo.output foo.tab.c foo.tab.h])
+AT_CHECK_OUTPUT([foo.y], [%defines %verbose %yacc],[],
+ [y.output y.tab.c y.tab.h])
+
+AT_CHECK_OUTPUT([foo.yy], [%defines %verbose %yacc],[],
+ [y.output y.tab.c y.tab.h])
+
+# Exercise %output and %file-prefix
+AT_CHECK_OUTPUT([foo.y], [%file-prefix="bar" %defines %verbose], [],
+ [bar.output bar.tab.c bar.tab.h])
+AT_CHECK_OUTPUT([foo.y], [%output="bar.c" %defines %verbose %yacc],[],
+ [bar.output bar.c bar.h])
+AT_CHECK_OUTPUT([foo.y],
+ [%file-prefix="baz" %output="bar.c" %defines %verbose %yacc],
+ [],
+ [bar.output bar.c bar.h])
+
+
+# Check priorities of extension control.
+AT_CHECK_OUTPUT([foo.yy], [%defines %verbose], [],
+ [foo.output foo.tab.cc foo.tab.hh])
+
+AT_CHECK_OUTPUT([foo.yy], [%defines %verbose ], [-o foo.c],
+ [foo.c foo.h foo.output])
+
+AT_CHECK_OUTPUT([foo.yy], [],
+ [--defines=foo.hpp -o foo.c++],
+ [foo.c++ foo.hpp])
+
+AT_CHECK_OUTPUT([foo.yy], [],
+ [-o foo.c++ --graph=foo.gph],
+ [foo.c++ foo.gph])
+
+
+## ------------ ##
+## C++ output. ##
+## ------------ ##
+
+m4_define([AT_CHECK_NO_SUBDIR_PART],
+[# Also make sure that the includes do not refer to the subdirectory.
+AT_CHECK([grep 'include .subdir/' $1.cc], 1, [])
+AT_CHECK([grep 'include .subdir/' $1.hh], 1, [])
+])
+
+AT_CHECK_OUTPUT([foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
+ [foo.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh])
+
+AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose], [],
+ [foo.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh],
+ [], [AT_CHECK_NO_SUBDIR_PART([foo.tab])])
+
+AT_CHECK_OUTPUT([subdir/foo.yy], [%skeleton "lalr1.cc" %defines %verbose],
+ [-o subdir/foo.cc],
+ [subdir/foo.cc subdir/foo.hh subdir/foo.output subdir/location.hh subdir/stack.hh subdir/position.hh],
+ [], [AT_CHECK_NO_SUBDIR_PART([subdir/foo])])
diff --git a/tests/package.m4 b/tests/package.m4
new file mode 100644
index 0000000..4c59293
--- /dev/null
+++ b/tests/package.m4
@@ -0,0 +1,6 @@
+# Signature of the current package.
+m4_define([AT_PACKAGE_NAME], [GNU Bison])
+m4_define([AT_PACKAGE_TARNAME], [bison])
+m4_define([AT_PACKAGE_VERSION], [2.3])
+m4_define([AT_PACKAGE_STRING], [GNU Bison 2.3])
+m4_define([AT_PACKAGE_BUGREPORT], [bug-bison@gnu.org])
diff --git a/tests/reduce.at b/tests/reduce.at
new file mode 100644
index 0000000..90b0130
--- /dev/null
+++ b/tests/reduce.at
@@ -0,0 +1,355 @@
+# Exercising Bison Grammar Reduction. -*- Autotest -*-
+# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Grammar Reduction.]])
+
+
+## ------------------- ##
+## Useless Terminals. ##
+## ------------------- ##
+
+AT_SETUP([Useless Terminals])
+
+AT_DATA([[input.y]],
+[[%verbose
+%output="input.c"
+
+%token useless1
+%token useless2
+%token useless3
+%token useless4
+%token useless5
+%token useless6
+%token useless7
+%token useless8
+%token useless9
+
+%token useful
+%%
+exp: useful;
+]])
+
+AT_CHECK([[bison input.y]])
+
+AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
+[[Terminals which are not used
+ useless1
+ useless2
+ useless3
+ useless4
+ useless5
+ useless6
+ useless7
+ useless8
+ useless9
+]])
+
+AT_CLEANUP
+
+
+
+## ---------------------- ##
+## Useless Nonterminals. ##
+## ---------------------- ##
+
+AT_SETUP([Useless Nonterminals])
+
+AT_DATA([[input.y]],
+[[%verbose
+%output="input.c"
+
+%nterm useless1
+%nterm useless2
+%nterm useless3
+%nterm useless4
+%nterm useless5
+%nterm useless6
+%nterm useless7
+%nterm useless8
+%nterm useless9
+
+%token useful
+%%
+exp: useful;
+]])
+
+AT_CHECK([[bison input.y]], 0, [],
+[[input.y: warning: 9 useless nonterminals
+input.y:4.8-15: warning: useless nonterminal: useless1
+input.y:5.8-15: warning: useless nonterminal: useless2
+input.y:6.8-15: warning: useless nonterminal: useless3
+input.y:7.8-15: warning: useless nonterminal: useless4
+input.y:8.8-15: warning: useless nonterminal: useless5
+input.y:9.8-15: warning: useless nonterminal: useless6
+input.y:10.8-15: warning: useless nonterminal: useless7
+input.y:11.8-15: warning: useless nonterminal: useless8
+input.y:12.8-15: warning: useless nonterminal: useless9
+]])
+
+AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
+[[Useless nonterminals
+ useless1
+ useless2
+ useless3
+ useless4
+ useless5
+ useless6
+ useless7
+ useless8
+ useless9
+]])
+
+AT_CLEANUP
+
+
+
+## --------------- ##
+## Useless Rules. ##
+## --------------- ##
+
+AT_SETUP([Useless Rules])
+
+AT_KEYWORDS([report])
+
+AT_DATA([[input.y]],
+[[%verbose
+%output="input.c"
+%token useful
+%%
+exp: useful;
+useless1: '1';
+useless2: '2';
+useless3: '3';
+useless4: '4';
+useless5: '5';
+useless6: '6';
+useless7: '7';
+useless8: '8';
+useless9: '9';
+]])
+
+AT_CHECK([[bison input.y]], 0, [],
+[[input.y: warning: 9 useless nonterminals and 9 useless rules
+input.y:6.1-8: warning: useless nonterminal: useless1
+input.y:7.1-8: warning: useless nonterminal: useless2
+input.y:8.1-8: warning: useless nonterminal: useless3
+input.y:9.1-8: warning: useless nonterminal: useless4
+input.y:10.1-8: warning: useless nonterminal: useless5
+input.y:11.1-8: warning: useless nonterminal: useless6
+input.y:12.1-8: warning: useless nonterminal: useless7
+input.y:13.1-8: warning: useless nonterminal: useless8
+input.y:14.1-8: warning: useless nonterminal: useless9
+input.y:6.11-13: warning: useless rule: useless1: '1'
+input.y:7.11-13: warning: useless rule: useless2: '2'
+input.y:8.11-13: warning: useless rule: useless3: '3'
+input.y:9.11-13: warning: useless rule: useless4: '4'
+input.y:10.11-13: warning: useless rule: useless5: '5'
+input.y:11.11-13: warning: useless rule: useless6: '6'
+input.y:12.11-13: warning: useless rule: useless7: '7'
+input.y:13.11-13: warning: useless rule: useless8: '8'
+input.y:14.11-13: warning: useless rule: useless9: '9'
+]])
+
+AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
+[[Useless nonterminals
+ useless1
+ useless2
+ useless3
+ useless4
+ useless5
+ useless6
+ useless7
+ useless8
+ useless9
+Terminals which are not used
+ '1'
+ '2'
+ '3'
+ '4'
+ '5'
+ '6'
+ '7'
+ '8'
+ '9'
+Useless rules
+ 2 useless1: '1'
+ 3 useless2: '2'
+ 4 useless3: '3'
+ 5 useless4: '4'
+ 6 useless5: '5'
+ 7 useless6: '6'
+ 8 useless7: '7'
+ 9 useless8: '8'
+ 10 useless9: '9'
+]])
+
+AT_CLEANUP
+
+
+
+## ------------------- ##
+## Reduced Automaton. ##
+## ------------------- ##
+
+# Check that the automaton is that as the for the grammar reduced by
+# hand.
+
+AT_SETUP([Reduced Automaton])
+
+AT_KEYWORDS([report])
+
+# The non reduced grammar.
+# ------------------------
+AT_DATA([[not-reduced.y]],
+[[/* A useless token. */
+%token useless_token
+/* A useful one. */
+%token useful
+%verbose
+%output="not-reduced.c"
+
+%%
+
+exp: useful { /* A useful action. */ }
+ | non_productive { /* A non productive action. */ }
+ ;
+
+not_reachable: useful { /* A not reachable action. */ }
+ ;
+
+non_productive: non_productive useless_token
+ { /* Another non productive action. */ }
+ ;
+%%
+]])
+
+AT_CHECK([[bison not-reduced.y]], 0, [],
+[[not-reduced.y: warning: 2 useless nonterminals and 3 useless rules
+not-reduced.y:14.1-13: warning: useless nonterminal: not_reachable
+not-reduced.y:11.6-19: warning: useless nonterminal: non_productive
+not-reduced.y:11.6-57: warning: useless rule: exp: non_productive
+not-reduced.y:14.16-56: warning: useless rule: not_reachable: useful
+not-reduced.y:17.17-18.63: warning: useless rule: non_productive: non_productive useless_token
+]])
+
+AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' not-reduced.output]], 0,
+[[Useless nonterminals
+ not_reachable
+ non_productive
+Terminals which are not used
+ useless_token
+Useless rules
+ 2 exp: non_productive
+ 3 not_reachable: useful
+ 4 non_productive: non_productive useless_token
+]])
+
+# The reduced grammar.
+# --------------------
+AT_DATA([[reduced.y]],
+[[/* A useless token. */
+%token useless_token
+/* A useful one. */
+%token useful
+%verbose
+%output="reduced.c"
+
+%%
+
+exp: useful { /* A useful action. */ }
+// | non_productive { /* A non productive action. */ } */
+ ;
+
+//not_reachable: useful { /* A not reachable action. */ }
+// ;
+
+//non_productive: non_productive useless_token
+// { /* Another non productive action. */ }
+// ;
+%%
+]])
+
+AT_CHECK([[bison reduced.y]])
+
+# Comparing the parsers.
+cp reduced.c expout
+AT_CHECK([sed 's/not-reduced/reduced/g' not-reduced.c], 0, [expout])
+
+AT_CLEANUP
+
+
+
+## ------------------- ##
+## Underivable Rules. ##
+## ------------------- ##
+
+AT_SETUP([Underivable Rules])
+
+AT_KEYWORDS([report])
+
+AT_DATA([[input.y]],
+[[%verbose
+%output="input.c"
+%token useful
+%%
+exp: useful | underivable;
+underivable: indirection;
+indirection: underivable;
+]])
+
+AT_CHECK([[bison input.y]], 0, [],
+[[input.y: warning: 2 useless nonterminals and 3 useless rules
+input.y:5.15-25: warning: useless nonterminal: underivable
+input.y:6.14-24: warning: useless nonterminal: indirection
+input.y:5.15-25: warning: useless rule: exp: underivable
+input.y:6.14-24: warning: useless rule: underivable: indirection
+input.y:7.14-24: warning: useless rule: indirection: underivable
+]])
+
+AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
+[[Useless nonterminals
+ underivable
+ indirection
+Useless rules
+ 2 exp: underivable
+ 3 underivable: indirection
+ 4 indirection: underivable
+]])
+
+AT_CLEANUP
+
+
+
+## ---------------- ##
+## Empty Language. ##
+## ---------------- ##
+
+AT_SETUP([Empty Language])
+
+AT_DATA([[input.y]],
+[[%output="input.c"
+%%
+exp: exp;
+]])
+
+AT_CHECK([[bison input.y]], 1, [],
+[[input.y: warning: 2 useless nonterminals and 2 useless rules
+input.y:3.1-3: fatal error: start symbol exp does not derive any sentence
+]])
+
+AT_CLEANUP
diff --git a/tests/regression.at b/tests/regression.at
new file mode 100644
index 0000000..6a37f75
--- /dev/null
+++ b/tests/regression.at
@@ -0,0 +1,965 @@
+# Bison Regressions. -*- Autotest -*-
+
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Regression tests.]])
+
+
+## ------------------ ##
+## Trivial grammars. ##
+## ------------------ ##
+
+AT_SETUP([Trivial grammars])
+
+AT_DATA_GRAMMAR([input.y],
+[[%{
+void yyerror (char const *);
+int yylex (void);
+#define YYSTYPE int *
+%}
+
+%error-verbose
+
+%%
+
+program: 'x';
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([input.o], [-DYYDEBUG -c input.c])
+
+AT_CLEANUP
+
+
+
+## ------------------------- ##
+## Early token definitions. ##
+## ------------------------- ##
+
+
+AT_SETUP([Early token definitions])
+
+# Found in GCJ: they expect the tokens to be defined before the user
+# prologue, so that they can use the token definitions in it.
+
+AT_DATA_GRAMMAR([input.y],
+[[%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+
+%union
+{
+ int val;
+};
+%{
+#ifndef MY_TOKEN
+# error "MY_TOKEN not defined."
+#endif
+%}
+%token MY_TOKEN
+%%
+exp: MY_TOKEN;
+%%
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input.o], [-c input.c])
+
+AT_CLEANUP
+
+
+
+## ---------------- ##
+## Braces parsing. ##
+## ---------------- ##
+
+
+AT_SETUP([Braces parsing])
+
+AT_DATA([input.y],
+[[/* Bison used to swallow the character after `}'. */
+
+%%
+exp: { tests = {{{{{{{{{{}}}}}}}}}}; };
+%%
+]])
+
+AT_CHECK([bison -v -o input.c input.y])
+
+AT_CHECK([grep 'tests = {{{{{{{{{{}}}}}}}}}};' input.c], 0, [ignore])
+
+AT_CLEANUP
+
+
+## ------------------ ##
+## Duplicate string. ##
+## ------------------ ##
+
+
+AT_SETUP([Duplicate string])
+
+AT_DATA([input.y],
+[[/* `Bison -v' used to dump core when two tokens are defined with the same
+ string, as LE and GE below. */
+
+%token NUM
+%token LE "<="
+%token GE "<="
+
+%%
+exp: '(' exp ')' | NUM ;
+%%
+]])
+
+AT_CHECK([bison -v -o input.c input.y], 0, [],
+[[input.y:6.8-14: warning: symbol `"<="' used more than once as a literal string
+]])
+
+AT_CLEANUP
+
+
+## ------------------- ##
+## Rule Line Numbers. ##
+## ------------------- ##
+
+AT_SETUP([Rule Line Numbers])
+
+AT_KEYWORDS([report])
+
+AT_DATA([input.y],
+[[%%
+expr:
+'a'
+
+{
+
+}
+
+'b'
+
+{
+
+}
+
+|
+
+
+{
+
+
+}
+
+'c'
+
+{
+
+};
+]])
+
+AT_CHECK([bison -o input.c -v input.y])
+
+# Check the contents of the report.
+AT_CHECK([cat input.output], [],
+[[Grammar
+
+ 0 $accept: expr $end
+
+ 1 @1: /* empty */
+
+ 2 expr: 'a' @1 'b'
+
+ 3 @2: /* empty */
+
+ 4 expr: @2 'c'
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+'a' (97) 2
+'b' (98) 2
+'c' (99) 4
+error (256)
+
+
+Nonterminals, with rules where they appear
+
+$accept (6)
+ on left: 0
+expr (7)
+ on left: 2 4, on right: 0
+@1 (8)
+ on left: 1, on right: 2
+@2 (9)
+ on left: 3, on right: 4
+
+
+state 0
+
+ 0 $accept: . expr $end
+
+ 'a' shift, and go to state 1
+
+ $default reduce using rule 3 (@2)
+
+ expr go to state 2
+ @2 go to state 3
+
+
+state 1
+
+ 2 expr: 'a' . @1 'b'
+
+ $default reduce using rule 1 (@1)
+
+ @1 go to state 4
+
+
+state 2
+
+ 0 $accept: expr . $end
+
+ $end shift, and go to state 5
+
+
+state 3
+
+ 4 expr: @2 . 'c'
+
+ 'c' shift, and go to state 6
+
+
+state 4
+
+ 2 expr: 'a' @1 . 'b'
+
+ 'b' shift, and go to state 7
+
+
+state 5
+
+ 0 $accept: expr $end .
+
+ $default accept
+
+
+state 6
+
+ 4 expr: @2 'c' .
+
+ $default reduce using rule 4 (expr)
+
+
+state 7
+
+ 2 expr: 'a' @1 'b' .
+
+ $default reduce using rule 2 (expr)
+]])
+
+AT_CLEANUP
+
+
+
+## ---------------------- ##
+## Mixing %token styles. ##
+## ---------------------- ##
+
+
+AT_SETUP([Mixing %token styles])
+
+# Taken from the documentation.
+AT_DATA([input.y],
+[[%token <operator> OR "||"
+%token <operator> LE 134 "<="
+%left OR "<="
+%%
+exp: ;
+%%
+]])
+
+AT_CHECK([bison -v -o input.c input.y])
+
+AT_CLEANUP
+
+
+
+## ---------------- ##
+## Invalid inputs. ##
+## ---------------- ##
+
+
+AT_SETUP([Invalid inputs])
+
+AT_DATA([input.y],
+[[%%
+?
+default: 'a' }
+%&
+%a-does-not-exist
+%-
+%{
+]])
+
+AT_CHECK([bison input.y], [1], [],
+[[input.y:2.1: invalid character: `?'
+input.y:3.14: invalid character: `}'
+input.y:4.1: invalid character: `%'
+input.y:4.2: invalid character: `&'
+input.y:5.1-17: invalid directive: `%a-does-not-exist'
+input.y:6.1: invalid character: `%'
+input.y:6.2: invalid character: `-'
+input.y:7.1-8.0: missing `%}' at end of file
+]])
+
+AT_CLEANUP
+
+
+AT_SETUP([Invalid inputs with {}])
+
+AT_DATA([input.y],
+[[
+%destructor
+%initial-action
+%lex-param
+%parse-param
+%printer
+%union
+]])
+
+AT_CHECK([bison input.y], [1], [],
+[[input.y:3.1: missing `{' in "%destructor {...}"
+input.y:4.1: missing `{' in "%initial-action {...}"
+input.y:4.1: syntax error, unexpected %initial-action {...}, expecting string or identifier
+]])
+
+AT_CLEANUP
+
+
+
+## ------------------- ##
+## Token definitions. ##
+## ------------------- ##
+
+
+AT_SETUP([Token definitions])
+
+# Bison managed, when fed with `%token 'f' "f"' to #define 'f'!
+AT_DATA_GRAMMAR([input.y],
+[%{
+#include <stdio.h>
+void yyerror (const char *s);
+int yylex (void);
+%}
+[%error-verbose
+%token MYEOF 0 "end of file"
+%token 'a' "a"
+%token B_TOKEN "b"
+%token C_TOKEN 'c'
+%token 'd' D_TOKEN
+%token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+%%
+exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
+%%
+void
+yyerror (char const *s)
+{
+ fprintf (stderr, "%s\n", s);
+}
+
+int
+yylex (void)
+{
+ return SPECIAL;
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input])
+AT_DATA([experr],
+[[syntax error, unexpected "\\'?\"\a\b\f\n\r\t\v\001\201\001\201?\?!", expecting a
+]])
+AT_PARSER_CHECK([./input], 1, [], [experr])
+AT_CLEANUP
+
+
+
+## -------------------- ##
+## Characters Escapes. ##
+## -------------------- ##
+
+
+AT_SETUP([Characters Escapes])
+
+AT_DATA_GRAMMAR([input.y],
+[%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+[%%
+exp:
+ '\'' "\'"
+| '\"' "\""
+| '"' "'"
+;
+]])
+# Pacify font-lock-mode: "
+
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input.o], [-c input.c])
+AT_CLEANUP
+
+
+
+## -------------- ##
+## Web2c Report. ##
+## -------------- ##
+
+# The generation of the reduction was once wrong in Bison, and made it
+# miss some reductions. In the following test case, the reduction on
+# `undef_id_tok' in state 1 was missing. This is stripped down from
+# the actual web2c.y.
+
+AT_SETUP([Web2c Report])
+
+AT_KEYWORDS([report])
+
+AT_DATA([input.y],
+[[%token undef_id_tok const_id_tok
+
+%start CONST_DEC_PART
+
+%%
+CONST_DEC_PART:
+ CONST_DEC_LIST
+ ;
+
+CONST_DEC_LIST:
+ CONST_DEC
+ | CONST_DEC_LIST CONST_DEC
+ ;
+
+CONST_DEC:
+ { } undef_id_tok '=' const_id_tok ';'
+ ;
+%%
+]])
+
+AT_CHECK([bison -v input.y])
+AT_CHECK([cat input.output], 0,
+[[Grammar
+
+ 0 $accept: CONST_DEC_PART $end
+
+ 1 CONST_DEC_PART: CONST_DEC_LIST
+
+ 2 CONST_DEC_LIST: CONST_DEC
+ 3 | CONST_DEC_LIST CONST_DEC
+
+ 4 @1: /* empty */
+
+ 5 CONST_DEC: @1 undef_id_tok '=' const_id_tok ';'
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+';' (59) 5
+'=' (61) 5
+error (256)
+undef_id_tok (258) 5
+const_id_tok (259) 5
+
+
+Nonterminals, with rules where they appear
+
+$accept (7)
+ on left: 0
+CONST_DEC_PART (8)
+ on left: 1, on right: 0
+CONST_DEC_LIST (9)
+ on left: 2 3, on right: 1 3
+CONST_DEC (10)
+ on left: 5, on right: 2 3
+@1 (11)
+ on left: 4, on right: 5
+
+
+state 0
+
+ 0 $accept: . CONST_DEC_PART $end
+
+ $default reduce using rule 4 (@1)
+
+ CONST_DEC_PART go to state 1
+ CONST_DEC_LIST go to state 2
+ CONST_DEC go to state 3
+ @1 go to state 4
+
+
+state 1
+
+ 0 $accept: CONST_DEC_PART . $end
+
+ $end shift, and go to state 5
+
+
+state 2
+
+ 1 CONST_DEC_PART: CONST_DEC_LIST .
+ 3 CONST_DEC_LIST: CONST_DEC_LIST . CONST_DEC
+
+ undef_id_tok reduce using rule 4 (@1)
+ $default reduce using rule 1 (CONST_DEC_PART)
+
+ CONST_DEC go to state 6
+ @1 go to state 4
+
+
+state 3
+
+ 2 CONST_DEC_LIST: CONST_DEC .
+
+ $default reduce using rule 2 (CONST_DEC_LIST)
+
+
+state 4
+
+ 5 CONST_DEC: @1 . undef_id_tok '=' const_id_tok ';'
+
+ undef_id_tok shift, and go to state 7
+
+
+state 5
+
+ 0 $accept: CONST_DEC_PART $end .
+
+ $default accept
+
+
+state 6
+
+ 3 CONST_DEC_LIST: CONST_DEC_LIST CONST_DEC .
+
+ $default reduce using rule 3 (CONST_DEC_LIST)
+
+
+state 7
+
+ 5 CONST_DEC: @1 undef_id_tok . '=' const_id_tok ';'
+
+ '=' shift, and go to state 8
+
+
+state 8
+
+ 5 CONST_DEC: @1 undef_id_tok '=' . const_id_tok ';'
+
+ const_id_tok shift, and go to state 9
+
+
+state 9
+
+ 5 CONST_DEC: @1 undef_id_tok '=' const_id_tok . ';'
+
+ ';' shift, and go to state 10
+
+
+state 10
+
+ 5 CONST_DEC: @1 undef_id_tok '=' const_id_tok ';' .
+
+ $default reduce using rule 5 (CONST_DEC)
+]])
+
+AT_CLEANUP
+
+
+## --------------- ##
+## Web2c Actions. ##
+## --------------- ##
+
+# The generation of the mapping `state -> action' was once wrong in
+# extremely specific situations. web2c.y exhibits this situation.
+# Below is a stripped version of the grammar. It looks like one can
+# simplify it further, but just don't: it is tuned to exhibit a bug,
+# which disapears when applying sane grammar transformations.
+#
+# It used to be wrong on yydefact only:
+#
+# static const yytype_uint8 yydefact[] =
+# {
+# - 2, 0, 1, 0, 0, 2, 3, 2, 5, 4,
+# + 2, 0, 1, 0, 0, 0, 3, 2, 5, 4,
+# 0, 0
+# };
+#
+# but let's check all the tables.
+
+
+AT_SETUP([Web2c Actions])
+
+AT_KEYWORDS([report])
+
+AT_DATA([input.y],
+[[%%
+statement: struct_stat;
+struct_stat: /* empty. */ | if else;
+if: "if" "const" "then" statement;
+else: "else" statement;
+%%
+]])
+
+AT_CHECK([bison -v -o input.c input.y])
+
+# Check only the tables. We don't use --no-parser, because it is
+# still to be implemented in the experimental branch of Bison.
+[sed -n 's/ *$//;/^static const.*\[\] =/,/^}/p' input.c >tables.c]
+
+AT_CHECK([[cat tables.c]], 0,
+[[static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6
+};
+static const yytype_uint8 yyprhs[] =
+{
+ 0, 0, 3, 5, 6, 9, 14
+};
+static const yytype_int8 yyrhs[] =
+{
+ 8, 0, -1, 9, -1, -1, 10, 11, -1, 3,
+ 4, 5, 8, -1, 6, 8, -1
+};
+static const yytype_uint8 yyrline[] =
+{
+ 0, 2, 2, 3, 3, 4, 5
+};
+static const char *const yytname[] =
+{
+ "$end", "error", "$undefined", "\"if\"", "\"const\"", "\"then\"",
+ "\"else\"", "$accept", "statement", "struct_stat", "if", "else", 0
+};
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261
+};
+static const yytype_uint8 yyr1[] =
+{
+ 0, 7, 8, 9, 9, 10, 11
+};
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 1, 0, 2, 4, 2
+};
+static const yytype_uint8 yydefact[] =
+{
+ 3, 0, 0, 2, 0, 0, 1, 3, 4, 3,
+ 6, 5
+};
+static const yytype_int8 yydefgoto[] =
+{
+ -1, 2, 3, 4, 8
+};
+static const yytype_int8 yypact[] =
+{
+ -2, -1, 4, -8, 0, 2, -8, -2, -8, -2,
+ -8, -8
+};
+static const yytype_int8 yypgoto[] =
+{
+ -8, -7, -8, -8, -8
+};
+static const yytype_uint8 yytable[] =
+{
+ 10, 1, 11, 5, 6, 0, 7, 9
+};
+static const yytype_int8 yycheck[] =
+{
+ 7, 3, 9, 4, 0, -1, 6, 5
+};
+static const yytype_uint8 yystos[] =
+{
+ 0, 3, 8, 9, 10, 4, 0, 6, 11, 5,
+ 8, 8
+};
+]])
+
+AT_CLEANUP
+
+
+## ------------------------- ##
+## yycheck Bound Violation. ##
+## ------------------------- ##
+
+
+# _AT_DATA_DANCER_Y(BISON-OPTIONS)
+# --------------------------------
+# The following grammar, taken from Andrew Suffield's GPL'd implementation
+# of DGMTP, the Dancer Generic Message Transport Protocol, used to violate
+# yycheck's bounds where issuing a verbose error message. Keep this test
+# so that possible bound checking compilers could check all the skeletons.
+m4_define([_AT_DATA_DANCER_Y],
+[AT_DATA_GRAMMAR([dancer.y],
+[%{
+static int yylex (AT_LALR1_CC_IF([int *], [void]));
+AT_LALR1_CC_IF([],
+[#include <stdio.h>
+static void yyerror (const char *);])
+%}
+$1
+%token ARROW INVALID NUMBER STRING DATA
+%defines
+%verbose
+%error-verbose
+/* Grammar follows */
+%%
+line: header body
+ ;
+
+header: '<' from ARROW to '>' type ':'
+ | '<' ARROW to '>' type ':'
+ | ARROW to type ':'
+ | type ':'
+ | '<' '>'
+ ;
+
+from: DATA
+ | STRING
+ | INVALID
+ ;
+
+to: DATA
+ | STRING
+ | INVALID
+ ;
+
+type: DATA
+ | STRING
+ | INVALID
+ ;
+
+body: /* empty */
+ | body member
+ ;
+
+member: STRING
+ | DATA
+ | '+' NUMBER
+ | '-' NUMBER
+ | NUMBER
+ | INVALID
+ ;
+%%
+AT_LALR1_CC_IF(
+[/* A C++ error reporting function. */
+void
+yy::parser::error (const location&, const std::string& m)
+{
+ std::cerr << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ yy::parser parser;
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+],
+[static void
+yyerror (const char *s)
+{
+ fprintf (stderr, "%s\n", s);
+}])
+
+static int
+yylex (AT_LALR1_CC_IF([int *lval], [void]))
+[{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ ':', -1
+ };
+ ]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC. */])[
+ return tokens[toknum++];
+}]
+
+int
+main (void)
+{
+ return yyparse ();
+}
+])
+])# _AT_DATA_DANCER_Y
+
+
+# AT_CHECK_DANCER(BISON-OPTIONS)
+# ------------------------------
+# Generate the grammar, compile it, run it.
+m4_define([AT_CHECK_DANCER],
+[AT_SETUP([Dancer $1])
+AT_BISON_OPTION_PUSHDEFS([$1])
+_AT_DATA_DANCER_Y([$1])
+AT_CHECK([bison -o dancer.c dancer.y])
+AT_LALR1_CC_IF(
+ [AT_CHECK([bison -o dancer.cc dancer.y])
+ AT_COMPILE_CXX([dancer])],
+ [AT_CHECK([bison -o dancer.c dancer.y])
+ AT_COMPILE([dancer])])
+AT_PARSER_CHECK([./dancer], 1, [],
+[syntax error, unexpected ':'
+])
+AT_BISON_OPTION_POPDEFS
+AT_CLEANUP
+])
+
+AT_CHECK_DANCER()
+AT_CHECK_DANCER([%glr-parser])
+AT_CHECK_DANCER([%skeleton "lalr1.cc"])
+
+
+## ------------------------------------------ ##
+## Diagnostic that expects two alternatives. ##
+## ------------------------------------------ ##
+
+
+# _AT_DATA_EXPECT2_Y(BISON-OPTIONS)
+# --------------------------------
+m4_define([_AT_DATA_EXPECT2_Y],
+[AT_DATA_GRAMMAR([expect2.y],
+[%{
+static int yylex (AT_LALR1_CC_IF([int *], [void]));
+AT_LALR1_CC_IF([],
+[#include <stdio.h>
+static void yyerror (const char *);])
+%}
+$1
+%defines
+%error-verbose
+%token A 1000
+%token B
+
+%%
+program: /* empty */
+ | program e ';'
+ | program error ';';
+
+e: e '+' t | t;
+t: A | B;
+
+%%
+AT_LALR1_CC_IF(
+[/* A C++ error reporting function. */
+void
+yy::parser::error (const location&, const std::string& m)
+{
+ std::cerr << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ yy::parser parser;
+ return parser.parse ();
+}
+],
+[static void
+yyerror (const char *s)
+{
+ fprintf (stderr, "%s\n", s);
+}])
+
+static int
+yylex (AT_LALR1_CC_IF([int *lval], [void]))
+[{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ 1000, '+', '+', -1
+ };
+ ]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC. */])[
+ return tokens[toknum++];
+}]
+
+int
+main (void)
+{
+ return yyparse ();
+}
+])
+])# _AT_DATA_EXPECT2_Y
+
+
+# AT_CHECK_EXPECT2(BISON-OPTIONS)
+# ------------------------------
+# Generate the grammar, compile it, run it.
+m4_define([AT_CHECK_EXPECT2],
+[AT_SETUP([Expecting two tokens $1])
+AT_BISON_OPTION_PUSHDEFS([$1])
+_AT_DATA_EXPECT2_Y([$1])
+AT_CHECK([bison -o expect2.c expect2.y])
+AT_LALR1_CC_IF(
+ [AT_CHECK([bison -o expect2.cc expect2.y])
+ AT_COMPILE_CXX([expect2])],
+ [AT_CHECK([bison -o expect2.c expect2.y])
+ AT_COMPILE([expect2])])
+AT_PARSER_CHECK([./expect2], 1, [],
+[syntax error, unexpected '+', expecting A or B
+])
+AT_BISON_OPTION_POPDEFS
+AT_CLEANUP
+])
+
+AT_CHECK_EXPECT2()
+AT_CHECK_EXPECT2([%glr-parser])
+AT_CHECK_EXPECT2([%skeleton "lalr1.cc"])
diff --git a/tests/sets.at b/tests/sets.at
new file mode 100644
index 0000000..a731315
--- /dev/null
+++ b/tests/sets.at
@@ -0,0 +1,302 @@
+# Exercising Bison Grammar Sets. -*- Autotest -*-
+# Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+
+# AT_EXTRACT_SETS(INPUT, OUTPUT)
+# ------------------------------
+# Extract the information about the grammar sets from a bison
+# trace output (INPUT), and save it in OUTPUT.
+# And remember, there is no alternation in portable sed.
+m4_define([AT_EXTRACT_SETS],
+[AT_DATA([extract.sed],
+[[#n
+/^NULLABLE$/ {
+ :null
+ p
+ n
+ /^[ ]*$/ !b null
+}
+/^FIRSTS$/ {
+ :firsts
+ p
+ n
+ /^[ ]*$/ !b firsts
+}
+/^FDERIVES$/ {
+ :fderiv
+ p
+ n
+ /^[ ]*$/ !b fderiv
+}
+/^DERIVES$/ {
+ :deriv
+ p
+ n
+ /^[ ]*$/ !b deriv
+}
+]])
+AT_CHECK([sed -f extract.sed $1], 0, [stdout])
+AT_CHECK([mv stdout $2])
+])
+
+
+
+AT_BANNER([[Grammar Sets (Firsts etc.).]])
+
+
+## ---------- ##
+## Nullable. ##
+## ---------- ##
+
+AT_SETUP([Nullable])
+
+# At some point, nullable had been smoking grass, and managed to say:
+#
+# Entering set_nullable
+# NULLABLE
+# 'e': yes
+# (null): no
+# ...
+
+AT_DATA([[input.y]],
+[[%%
+e: 'e' | /* Nothing */;
+]])
+
+AT_CHECK([[bison --trace=sets input.y]], [], [], [stderr])
+AT_EXTRACT_SETS([stderr], [sets])
+AT_CHECK([[cat sets]], [],
+[[DERIVES
+ $accept derives
+ 0 e $end
+ e derives
+ 1 'e'
+ 2 /* empty */
+NULLABLE
+ $accept: no
+ e: yes
+FIRSTS
+ $accept firsts
+ $accept
+ e
+ e firsts
+ e
+FDERIVES
+ $accept derives
+ 0 e $end
+ 1 'e'
+ 2 /* empty */
+ e derives
+ 1 'e'
+ 2 /* empty */
+]])
+
+AT_CLEANUP
+
+
+## ---------------- ##
+## Broken Closure. ##
+## ---------------- ##
+
+# TC was once broken during a massive `simplification' of the code.
+# It resulted in bison dumping core on the following grammar (the
+# computation of FIRSTS uses TC). It managed to produce a pretty
+# exotic closure:
+#
+# TC: Input
+#
+# 01234567
+# +--------+
+# 0| 1 |
+# 1| 1 |
+# 2| 1 |
+# 3| 1 |
+# 4| 1 |
+# 5| 1 |
+# 6| 1|
+# 7| |
+# +--------+
+#
+# TC: Output
+#
+# 01234567
+# +--------+
+# 0| 1 |
+# 1| 111 |
+# 2| 111 |
+# 3| 1111 |
+# 4| 111 1 |
+# 5| 111 1 |
+# 6| 111 1|
+# 7| 111 |
+# +--------+
+#
+# instead of that below.
+
+AT_SETUP([Broken Closure])
+
+AT_DATA([input.y],
+[[%%
+a: b;
+b: c;
+c: d;
+d: e;
+e: f;
+f: g;
+g: h;
+h: 'h';
+]])
+
+AT_CHECK([[bison --trace=sets input.y]], [], [], [stderr])
+
+AT_CHECK([[sed -n 's/[ ]*$//;/^RTC: Firsts Output BEGIN/,/^RTC: Firsts Output END/p' stderr]], [],
+[[RTC: Firsts Output BEGIN
+
+ 012345678
+ .---------.
+ 0|111111111|
+ 1| 11111111|
+ 2| 1111111|
+ 3| 111111|
+ 4| 11111|
+ 5| 1111|
+ 6| 111|
+ 7| 11|
+ 8| 1|
+ `---------'
+RTC: Firsts Output END
+]])
+
+AT_CLEANUP
+
+
+
+## -------- ##
+## Firsts. ##
+## -------- ##
+
+AT_SETUP([Firsts])
+
+AT_DATA([input.y],
+[[%nonassoc '<' '>'
+%left '+' '-'
+%right '^' '='
+%%
+exp:
+ exp '<' exp
+ | exp '>' exp
+ | exp '+' exp
+ | exp '-' exp
+ | exp '^' exp
+ | exp '=' exp
+ | "exp"
+ ;
+]])
+
+AT_CHECK([[bison --trace=sets input.y]], [], [], [stderr])
+AT_EXTRACT_SETS([stderr], [sets])
+AT_CHECK([[cat sets]], [],
+[[DERIVES
+ $accept derives
+ 0 exp $end
+ exp derives
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 "exp"
+NULLABLE
+ $accept: no
+ exp: no
+FIRSTS
+ $accept firsts
+ $accept
+ exp
+ exp firsts
+ exp
+FDERIVES
+ $accept derives
+ 0 exp $end
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 "exp"
+ exp derives
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 "exp"
+]])
+
+AT_CLEANUP
+
+
+
+
+## -------- ##
+## Accept. ##
+## -------- ##
+
+# In some weird cases Bison could compute an incorrect final state
+# number. This happens only if the $end token is used in the user
+# grammar, which is a very suspicious accidental feature introduced as
+# a side effect of allowing the user to name $end using `%token END 0
+# "end of file"'.
+
+AT_SETUP([Accept])
+
+AT_DATA([input.y],
+[[%token END 0
+%%
+input:
+ 'a'
+| '(' input ')'
+| '(' error END
+;
+]])
+
+AT_CHECK([[bison -v -o input.c input.y]])
+
+# Get the final state in the parser.
+AT_CHECK([[sed -n 's/.*define YYFINAL *\([0-9][0-9]*\)/final state \1/p' input.c]],
+ 0, [stdout])
+mv stdout expout
+
+# Get the final state in the report, from the "accept" action..
+AT_CHECK([sed -n '
+ /^state \(.*\)/{
+ s//final state \1/
+ x
+ }
+ / accept/{
+ x
+ p
+ q
+ }
+ ' input.output],
+ 0, [expout])
+
+AT_CLEANUP
diff --git a/tests/synclines.at b/tests/synclines.at
new file mode 100644
index 0000000..5ecbdb3
--- /dev/null
+++ b/tests/synclines.at
@@ -0,0 +1,175 @@
+# Executing Actions. -*- Autotest -*-
+# Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[User Actions.]])
+
+
+# AT_SYNCLINES_COMPILE(FILE)
+# --------------------------
+# Compile FILE expecting an error, and save in the file stdout the
+# normalized output. Ignore the exit status, since some compilers
+# (e.g. c89 on IRIX 6.5) triger warnings on `#error', instead of
+# errors.
+m4_define([AT_SYNCLINES_COMPILE],
+[AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+AT_CHECK([[sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/' stderr]], 0, [stdout])
+])
+
+# AT_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)
+# -----------------------------------------
+# Check that compiling the parser produced from INPUT cause GCC
+# to issue ERROR-MSG.
+m4_define([AT_TEST_SYNCLINE],
+[AT_SETUP([$1])
+
+# It seems impossible to find a generic scheme to check the location
+# of an error. Even requiring GCC is not sufficient, since for instance
+# the version modified by Apple:
+#
+# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
+# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
+# | 19991024 (release) configure:2124: $? = 0
+#
+# instead of:
+#
+# | input.y:2: #error "2"
+#
+# it reports:
+#
+# | input.y:2: "2"
+# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
+
+AT_DATA([syncline.c],
+[[#error "1"
+]])
+
+AT_SYNCLINES_COMPILE([syncline.c])
+AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
+
+AT_DATA([[input.y]], [$2])
+AT_CHECK([bison -o input.c input.y])
+AT_SYNCLINES_COMPILE([input.c])
+AT_CHECK([cat stdout], 0, [$3])
+AT_CLEANUP
+])
+
+
+## --------------------- ##
+## Prologue synch line. ##
+## --------------------- ##
+
+
+AT_TEST_SYNCLINE([Prologue synch line],
+[[%{
+#error "2"
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp: '0';
+]],
+[input.y:2: #error "2"
+])
+
+
+## ------------------- ##
+## %union synch line. ##
+## ------------------- ##
+
+AT_TEST_SYNCLINE([%union synch line],
+[[%union {
+#error "2"
+ char dummy;
+}
+%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp: '0';
+]],
+[input.y:2: #error "2"
+])
+
+
+## ------------------------- ##
+## Postprologue synch line. ##
+## ------------------------- ##
+
+AT_TEST_SYNCLINE([Postprologue synch line],
+[[%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%union
+{
+ int ival;
+}
+%{
+#error "10"
+%}
+%%
+exp: '0';
+]],
+[input.y:10: #error "10"
+])
+
+
+## ------------------- ##
+## Action synch line. ##
+## ------------------- ##
+
+AT_TEST_SYNCLINE([Action synch line],
+[[%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp:
+{
+#error "8"
+};
+]],
+[input.y:8: #error "8"
+])
+
+
+## --------------------- ##
+## Epilogue synch line. ##
+## --------------------- ##
+
+AT_TEST_SYNCLINE([Epilogue synch line],
+[[%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp: '0';
+%%
+#error "8"
+]],
+[input.y:8: #error "8"
+])
diff --git a/tests/testsuite b/tests/testsuite
new file mode 100755
index 0000000..d429345
--- /dev/null
+++ b/tests/testsuite
@@ -0,0 +1,67531 @@
+#! /bin/sh
+## --------------------- ##
+## M4sh Initialization. ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+ # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '${1+"$@"}'='"$@"'
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+ set -o posix
+fi
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# Support unset when possible.
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+ as_unset=unset
+else
+ as_unset=false
+fi
+
+
+# Work around bugs in pre-3.0 UWIN ksh.
+$as_unset ENV MAIL MAILPATH
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+for as_var in \
+ LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+ LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+ LC_TELEPHONE LC_TIME
+do
+ if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+ eval $as_var=C; export $as_var
+ else
+ $as_unset $as_var
+ fi
+done
+
+# Required to use basename.
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi
+
+
+# Name of the executable.
+as_me=`$as_basename "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)$' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+ /^X\/\(\/\/\)$/{ s//\1/; q; }
+ /^X\/\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! /bin/sh" >conf$$.sh
+ echo "exit 0" >>conf$$.sh
+ chmod +x conf$$.sh
+ if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conf$$.sh
+fi
+
+
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" || {
+ # Find who we are. Look in the path if we contain no path at all
+ # relative or not.
+ case $0 in
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+ ;;
+ esac
+ # We did not find ourselves, most probably we were run as `sh COMMAND'
+ # in which case we are not to be found in the path.
+ if test "x$as_myself" = x; then
+ as_myself=$0
+ fi
+ if test ! -f "$as_myself"; then
+ { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
+ { (exit 1); exit 1; }; }
+ fi
+ case $CONFIG_SHELL in
+ '')
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for as_base in sh bash ksh sh5; do
+ case $as_dir in
+ /*)
+ if ("$as_dir/$as_base" -c '
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
+ $as_unset BASH_ENV || test "${BASH_ENV+set}" != set || { BASH_ENV=; export BASH_ENV; }
+ $as_unset ENV || test "${ENV+set}" != set || { ENV=; export ENV; }
+ CONFIG_SHELL=$as_dir/$as_base
+ export CONFIG_SHELL
+ exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+ fi;;
+ esac
+ done
+done
+;;
+ esac
+
+ # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+ # uniformly replaced by the line number. The first 'sed' inserts a
+ # line-number line before each line; the second 'sed' does the real
+ # work. The second script uses 'N' to pair each line-number line
+ # with the numbered line, and appends trailing '-' during
+ # substitution so that $LINENO is not a special case at line end.
+ # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+ # second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
+ sed '=' <$as_myself |
+ sed '
+ N
+ s,$,-,
+ : loop
+ s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+ t loop
+ s,-$,,
+ s,^['$as_cr_digits']*\n,,
+ ' >$as_me.lineno &&
+ chmod +x $as_me.lineno ||
+ { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
+ { (exit 1); exit 1; }; }
+
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensible to this).
+ . ./$as_me.lineno
+ # Exit status is that of the last command.
+ exit
+}
+
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+ *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T=' ' ;;
+ *c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+ *) ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+ # We could just check for DJGPP; but this test a) works b) is more generic
+ # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+ if test -f conf$$.exe; then
+ # Don't use ln at all; we don't have any links
+ as_ln_s='cp -p'
+ else
+ as_ln_s='ln -s'
+ fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+else
+ as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+if mkdir -p . 2>/dev/null; then
+ as_mkdir_p=:
+else
+ test -d ./-p && rmdir ./-p
+ as_mkdir_p=false
+fi
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS=" $as_nl"
+
+# CDPATH.
+$as_unset CDPATH
+
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+# How were we run?
+at_cli_args="$@"
+
+# Load the config file.
+for at_file in atconfig atlocal
+do
+ test -r $at_file || continue
+ . ./$at_file || { echo "$as_me: error: invalid content: $at_file" >&2
+ { (exit 1); exit 1; }; }
+done
+
+# atconfig delivers paths relative to the directory the test suite is
+# in, but the groups themselves are run in testsuite-dir/group-dir.
+if test -n "$at_top_srcdir"; then
+ builddir=../..
+ for at_dir in srcdir top_srcdir top_builddir
+ do
+ at_val=`eval echo '${'at_$at_dir'}'`
+ eval "$at_dir=\$at_val/../.."
+ done
+fi
+
+# Not all shells have the 'times' builtin; the subshell is needed to make
+# sure we discard the 'times: not found' message from the shell.
+at_times_p=false
+(times) >/dev/null 2>&1 && at_times_p=:
+
+# CLI Arguments to pass to the debugging scripts.
+at_debug_args=
+# -e sets to true
+at_errexit_p=false
+# Shall we be verbose?
+at_verbose=:
+at_quiet=echo
+
+# Shall we keep the debug scripts? Must be `:' when the suite is
+# run by a debug script, so that the script doesn't remove itself.
+at_debug_p=false
+# Display help message?
+at_help_p=false
+# List test groups?
+at_list_p=false
+# Test groups to run
+at_groups=
+
+# The directory we are in.
+at_dir=`pwd`
+# The directory the whole suite works in.
+# Should be absolutely to let the user `cd' at will.
+at_suite_dir=$at_dir/$as_me.dir
+# The file containing the suite.
+at_suite_log=$at_dir/$as_me.log
+# The file containing the location of the last AT_CHECK.
+at_check_line_file=$at_suite_dir/at-check-line
+# The file containing the exit status of the last command.
+at_status_file=$at_suite_dir/at-status
+# The files containing the output of the tested commands.
+at_stdout=$at_suite_dir/at-stdout
+at_stder1=$at_suite_dir/at-stder1
+at_stderr=$at_suite_dir/at-stderr
+# The file containing dates.
+at_times_file=$at_suite_dir/at-times
+
+# List of the tested programs.
+at_tested='bison'
+# List of the all the test groups.
+at_groups_all=' banner-1 1 2 3 4 5 6 7 8 9 10 banner-2 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 banner-3 31 32 33 34 banner-4 35 36 37 38 39 40 banner-5 41 42 43 44 45 banner-6 46 47 48 49 banner-7 50 51 52 53 54 55 56 57 banner-8 58 59 60 61 62 63 64 65 66 67 68 69 banner-9 70 71 72 73 74 75 76 77 78 79 80 81 82 83 banner-10 84 85 86 87 88 89 90 91 92 93 94 95 96 97 banner-11 98 99 100 101 102 banner-12 103 104 banner-13 105 106 107 108 109 banner-14 110 111 112 banner-15 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 banner-16 131 132 banner-17 133 134 135 136 137 138 139 140 141 banner-18 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158'
+# As many dots as there are digits in the last test group number.
+# Used to normalize the test group numbers so that `ls' lists them in
+# numerical order.
+at_format='...'
+# Description of all the test groups.
+at_help_all='1;input.at:28;Invalid dollar-n;;
+2;input.at:46;Invalid @n;;
+3;input.at:64;Type Clashes;;
+4;input.at:89;Unused values;;
+5;input.at:157;Incompatible Aliases;;
+6;input.at:198;Torturing the Scanner;;
+7;input.at:357;Typed symbol aliases;;
+8;input.at:393;Require 1.0;;
+9;input.at:394;Require 2.3;;
+10;input.at:396;Require 100.0;;
+11;output.at:43;Output files: -dv ;;
+12;output.at:46;Output files: -dv >&-;;
+13;output.at:48;Output files: -dv -o foo.c ;;
+14;output.at:50;Output files: -dv -o foo.tab.c ;;
+15;output.at:52;Output files: -dv -y ;;
+16;output.at:54;Output files: -dv -b bar ;;
+17;output.at:56;Output files: -dv -g -o foo.c ;;
+18;output.at:60;Output files: %defines %verbose ;;
+19;output.at:62;Output files: %defines %verbose %yacc ;;
+20;output.at:65;Output files: %defines %verbose %yacc ;;
+21;output.at:69;Output files: %file-prefix="bar" %defines %verbose ;;
+22;output.at:71;Output files: %output="bar.c" %defines %verbose %yacc ;;
+23;output.at:75;Output files: %file-prefix="baz" %output="bar.c" %defines %verbose %yacc ;;
+24;output.at:80;Output files: %defines %verbose ;;
+25;output.at:83;Output files: %defines %verbose -o foo.c ;;
+26;output.at:87;Output files: --defines=foo.hpp -o foo.c++ ;;
+27;output.at:91;Output files: -o foo.c++ --graph=foo.gph ;;
+28;output.at:105;Output files: %skeleton "lalr1.cc" %defines %verbose ;;
+29;output.at:109;Output files: %skeleton "lalr1.cc" %defines %verbose ;;
+30;output.at:114;Output files: %skeleton "lalr1.cc" %defines %verbose -o subdir/foo.cc ;;
+31;sets.at:66;Nullable;;
+32;sets.at:151;Broken Closure;;
+33;sets.at:193;Firsts;;
+34;sets.at:269;Accept;;
+35;reduce.at:26;Useless Terminals;;
+36;reduce.at:70;Useless Nonterminals;;
+37;reduce.at:125;Useless Rules;report;
+38;reduce.at:212;Reduced Automaton;report;
+39;reduce.at:301;Underivable Rules;report;
+40;reduce.at:342;Empty Language;;
+41;synclines.at:95;Prologue synch line;;
+42;synclines.at:115;%union synch line;;
+43;synclines.at:138;Postprologue synch line;;
+44;synclines.at:157;Action synch line;;
+45;synclines.at:175;Epilogue synch line;;
+46;headers.at:27;%union and --defines;;
+47;headers.at:77;Invalid CPP guards: input/input;;
+48;headers.at:78;Invalid CPP guards: 9foo;;
+49;headers.at:87;export YYLTYPE;;
+50;actions.at:25;Mid-rule actions;;
+51;actions.at:91;Exotic Dollars;;
+52;actions.at:527;Printers and Destructors : ;;
+53;actions.at:528;Printers and Destructors with union: ;;
+54;actions.at:533;Printers and Destructors : %defines %skeleton "lalr1.cc";c++;
+55;actions.at:534;Printers and Destructors with union: %defines %skeleton "lalr1.cc";c++;
+56;actions.at:536;Printers and Destructors : %glr-parser;;
+57;actions.at:537;Printers and Destructors with union: %glr-parser;;
+58;conflicts.at:32;S/R in initial;;
+59;conflicts.at:52;%nonassoc and eof;;
+60;conflicts.at:128;Unresolved SR Conflicts;report;
+61;conflicts.at:235;Resolved SR Conflicts;report;
+62;conflicts.at:357;Defaulted Conflicted Reduction;report;
+63;conflicts.at:476;%expect not enough;;
+64;conflicts.at:496;%expect right;;
+65;conflicts.at:513;%expect too much;;
+66;conflicts.at:533;%expect with reduce conflicts;;
+67;conflicts.at:553;%no-default-prec without %prec;;
+68;conflicts.at:579;%no-default-prec with %prec;;
+69;conflicts.at:603;%default-prec;;
+70;calc.at:550;Calculator ;;
+71;calc.at:552;Calculator %defines;;
+72;calc.at:553;Calculator %locations;;
+73;calc.at:554;Calculator %name-prefix="calc";;
+74;calc.at:555;Calculator %verbose;;
+75;calc.at:556;Calculator %yacc;;
+76;calc.at:557;Calculator %error-verbose;;
+77;calc.at:559;Calculator %pure-parser %locations;;
+78;calc.at:560;Calculator %error-verbose %locations;;
+79;calc.at:562;Calculator %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc;;
+80;calc.at:564;Calculator %debug;;
+81;calc.at:565;Calculator %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc;;
+82;calc.at:567;Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc;;
+83;calc.at:569;Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count};;
+84;calc.at:586;Calculator %glr-parser ;;
+85;calc.at:588;Calculator %glr-parser %defines;;
+86;calc.at:589;Calculator %glr-parser %locations;;
+87;calc.at:590;Calculator %glr-parser %name-prefix="calc";;
+88;calc.at:591;Calculator %glr-parser %verbose;;
+89;calc.at:592;Calculator %glr-parser %yacc;;
+90;calc.at:593;Calculator %glr-parser %error-verbose;;
+91;calc.at:595;Calculator %glr-parser %pure-parser %locations;;
+92;calc.at:596;Calculator %glr-parser %error-verbose %locations;;
+93;calc.at:598;Calculator %glr-parser %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc;;
+94;calc.at:600;Calculator %glr-parser %debug;;
+95;calc.at:601;Calculator %glr-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc;;
+96;calc.at:603;Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc;;
+97;calc.at:605;Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count};;
+98;calc.at:621;Calculator %skeleton "lalr1.cc" %defines %locations ;c++;
+99;calc.at:622;Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %name-prefix="calc" %verbose %yacc;c++;
+100;calc.at:624;Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %debug %name-prefix="calc" %verbose %yacc;c++;
+101;calc.at:626;Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc;c++;
+102;calc.at:628;Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count};c++;
+103;calc.at:651;Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc;c++;
+104;calc.at:653;Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count};c++;
+105;torture.at:140;Big triangle;;
+106;torture.at:232;Big horizontal;;
+107;torture.at:368;Many look-ahead tokens;;
+108;torture.at:445;Exploding the Stack Size with Alloca;;
+109;torture.at:471;Exploding the Stack Size with Malloc;;
+110;existing.at:26;GNU AWK Grammar;;
+111;existing.at:364;GNU Cim Grammar;;
+112;existing.at:980;GNU pic Grammar;;
+113;regression.at:28;Trivial grammars;;
+114;regression.at:57;Early token definitions;;
+115;regression.at:95;Braces parsing;;
+116;regression.at:117;Duplicate string;;
+117;regression.at:143;Rule Line Numbers;report;
+118;regression.at:287;Mixing %token styles;;
+119;regression.at:310;Invalid inputs;;
+120;regression.at:336;Invalid inputs with {};;
+121;regression.at:363;Token definitions;;
+122;regression.at:416;Characters Escapes;;
+123;regression.at:447;Web2c Report;report;
+124;regression.at:624;Web2c Actions;report;
+125;regression.at:866;Dancer ;;
+126;regression.at:867;Dancer %glr-parser;;
+127;regression.at:868;Dancer %skeleton "lalr1.cc";c++;
+128;regression.at:963;Expecting two tokens ;;
+129;regression.at:964;Expecting two tokens %glr-parser;;
+130;regression.at:965;Expecting two tokens %skeleton "lalr1.cc";c++;
+131;c++.at:102;Doxygen Public Documentation;;
+132;c++.at:103;Doxygen Private Documentation;;
+133;cxx-type.at:412;GLR: Resolve ambiguity, impure, no locations;;
+134;cxx-type.at:419;GLR: Resolve ambiguity, impure, locations;;
+135;cxx-type.at:425;GLR: Resolve ambiguity, pure, no locations;;
+136;cxx-type.at:432;GLR: Resolve ambiguity, pure, locations;;
+137;cxx-type.at:439;GLR: Merge conflicting parses, impure, no locations;;
+138;cxx-type.at:446;GLR: Merge conflicting parses, impure, locations;;
+139;cxx-type.at:453;GLR: Merge conflicting parses, pure, no locations;;
+140;cxx-type.at:459;GLR: Merge conflicting parses, pure, locations;;
+141;cxx-type.at:466;GLR: Verbose messages, resolve ambiguity, impure, no locations;;
+142;glr-regression.at:25;Badly Collapsed GLR States;;
+143;glr-regression.at:116;Improper handling of embedded actions and dollar(-N) in GLR parsers;;
+144;glr-regression.at:232;Improper merging of GLR delayed action sets;;
+145;glr-regression.at:337;Duplicate representation of merged trees;;
+146;glr-regression.at:432;User destructor for unresolved GLR semantic value;;
+147;glr-regression.at:502;User destructor after an error during a split parse;;
+148;glr-regression.at:566;Duplicated user destructor for lookahead;;
+149;glr-regression.at:644;Incorrectly initialized location for empty right-hand side in GLR;;
+150;glr-regression.at:740;No users destructors if stack 0 deleted;;
+151;glr-regression.at:820;Corrupted semantic options if user action cuts parse;;
+152;glr-regression.at:881;Undesirable destructors if user action cuts parse;;
+153;glr-regression.at:947;Leaked semantic values if user action cuts parse;;
+154;glr-regression.at:1078;Incorrect lookahead during deterministic GLR;;
+155;glr-regression.at:1212;Incorrect lookahead during nondeterministic GLR;;
+156;glr-regression.at:1429;Leaked semantic values when reporting ambiguity;;
+157;glr-regression.at:1519;Leaked lookahead after nondeterministic parse syntax error;;
+158;glr-regression.at:1585;Uninitialized location when reporting ambiguity;;
+'
+
+at_keywords=
+at_prev=
+for at_option
+do
+ # If the previous option needs an argument, assign it.
+ if test -n "$at_prev"; then
+ at_option=$at_prev=$at_option
+ at_prev=
+ fi
+
+ at_optarg=`expr "x$at_option" : 'x[^=]*=\(.*\)'`
+
+ # Accept the important Cygnus configure options, so we can diagnose typos.
+
+ case $at_option in
+ --help | -h )
+ at_help_p=:
+ ;;
+
+ --list | -l )
+ at_list_p=:
+ ;;
+
+ --version | -V )
+ echo "$as_me (GNU Bison 2.3)"
+ exit 0
+ ;;
+
+ --clean | -c )
+ rm -rf $at_suite_dir $at_suite_log
+ exit 0
+ ;;
+
+ --debug | -d )
+ at_debug_p=:
+ ;;
+
+ --errexit | -e )
+ at_debug_p=:
+ at_errexit_p=:
+ ;;
+
+ --verbose | -v )
+ at_verbose=echo; at_quiet=:
+ ;;
+
+ --trace | -x )
+ at_traceon='set -vx'; at_traceoff='set +vx'
+ ;;
+
+ [0-9] | [0-9][0-9] | [0-9][0-9][0-9] | [0-9][0-9][0-9][0-9])
+ at_groups="$at_groups$at_option "
+ ;;
+
+ # Ranges
+ [0-9]- | [0-9][0-9]- | [0-9][0-9][0-9]- | [0-9][0-9][0-9][0-9]-)
+ at_range_start=`echo $at_option |tr -d '-'`
+ at_range=`echo " $at_groups_all " | \
+ sed -e 's,^.* '$at_range_start' ,'$at_range_start' ,'`
+ at_groups="$at_groups$at_range "
+ ;;
+
+ -[0-9] | -[0-9][0-9] | -[0-9][0-9][0-9] | -[0-9][0-9][0-9][0-9])
+ at_range_end=`echo $at_option |tr -d '-'`
+ at_range=`echo " $at_groups_all " | \
+ sed -e 's, '$at_range_end' .*$, '$at_range_end','`
+ at_groups="$at_groups$at_range "
+ ;;
+
+ [0-9]-[0-9] | [0-9]-[0-9][0-9] | [0-9]-[0-9][0-9][0-9] | \
+ [0-9]-[0-9][0-9][0-9][0-9] | [0-9][0-9]-[0-9][0-9] | \
+ [0-9][0-9]-[0-9][0-9][0-9] | [0-9][0-9]-[0-9][0-9][0-9][0-9] | \
+ [0-9][0-9][0-9]-[0-9][0-9][0-9] | \
+ [0-9][0-9][0-9]-[0-9][0-9][0-9][0-9] | \
+ [0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9] )
+ at_range_start=`echo $at_option |sed 's,-.*,,'`
+ at_range_end=`echo $at_option |sed 's,.*-,,'`
+ # FIXME: Maybe test to make sure start <= end?
+ at_range=`echo " $at_groups_all " | \
+ sed -e 's,^.* '$at_range_start' ,'$at_range_start' ,' \
+ -e 's, '$at_range_end' .*$, '$at_range_end','`
+ at_groups="$at_groups$at_range "
+ ;;
+
+ # Keywords.
+ --keywords | -k )
+ at_prev=--keywords
+ ;;
+ --keywords=* )
+ at_keywords="$at_keywords,$at_optarg"
+ ;;
+
+ *=*)
+ at_envvar=`expr "x$at_option" : 'x\([^=]*\)='`
+ # Reject names that are not valid shell variable names.
+ expr "x$at_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid variable name: $at_envvar" >&2
+ { (exit 1); exit 1; }; }
+ at_value=`echo "$at_optarg" | sed "s/'/'\\\\\\\\''/g"`
+ eval "$at_envvar='$at_value'"
+ export $at_envvar
+ # Propagate to debug scripts.
+ at_debug_args="$at_debug_args $at_option"
+ ;;
+
+ *) echo "$as_me: invalid option: $at_option" >&2
+ echo "Try \`$0 --help' for more information." >&2
+ exit 1
+ ;;
+ esac
+done
+
+# Process the --keywords
+if test -n "$at_keywords"; then
+ at_groups_selected=$at_help_all
+ for at_keyword in `IFS=,; set X $at_keywords; shift; echo ${1+$@}`
+ do
+ # It is on purpose that we match the test group titles too.
+ at_groups_selected=`echo "$at_groups_selected" |
+ grep -i "^[^;]*;[^;]*.*[; ]$at_keyword[ ;]"`
+ done
+ at_groups_selected=`echo "$at_groups_selected" | sed 's/;.*//'`
+ # Smash the end of lines.
+ at_groups_selected=`echo $at_groups_selected`
+ at_groups="$at_groups$at_groups_selected "
+fi
+
+# Selected test groups.
+test -z "$at_groups" && at_groups=$at_groups_all
+
+# Help message.
+if $at_help_p; then
+ cat <<_ATEOF
+Usage: $0 [OPTION]... [VARIABLE=VALUE]... [TESTS]
+
+Run all the tests, or the selected TESTS, and save a detailed log file.
+Upon failure, create debugging scripts.
+
+You should not change environment variables unless explicitly passed
+as command line arguments. Set \`AUTOTEST_PATH' to select the executables
+to exercise. Each relative directory is expanded as build and source
+directories relatively to the top level of this distribution. E.g.,
+
+ $ $0 AUTOTEST_PATH=bin
+
+possibly amounts into
+
+ PATH=/tmp/foo-1.0/bin:/src/foo-1.0/bin:\$PATH
+_ATEOF
+cat <<_ATEOF
+
+Operation modes:
+ -h, --help print the help message, then exit
+ -V, --version print version number, then exit
+ -c, --clean remove all the files this test suite might create and exit
+ -l, --list describes all the tests, or the selected TESTS
+_ATEOF
+cat <<_ATEOF
+
+Execution tuning:
+ -k, --keywords=KEYWORDS
+ select the tests matching all the comma separated KEYWORDS
+ accumulates
+ -e, --errexit abort as soon as a test fails; implies --debug
+ -v, --verbose force more detailed output
+ default for debugging scripts
+ -d, --debug inhibit clean up and debug script creation
+ default for debugging scripts
+ -x, --trace enable tests shell tracing
+_ATEOF
+cat <<_ATEOF
+
+Report bugs to <bug-bison@gnu.org>.
+_ATEOF
+ exit 0
+fi
+
+# List of tests.
+if $at_list_p; then
+ cat <<_ATEOF
+GNU Bison 2.3 test suite test groups:
+
+ NUM: FILENAME:LINE TEST-GROUP-NAME
+ KEYWORDS
+
+_ATEOF
+ # " 1 42 45 " => "^(1|42|45);".
+ at_groups_pattern=`echo "$at_groups" | sed 's/^ *//;s/ *$//;s/ */|/g'`
+ echo "$at_help_all" |
+ awk 'BEGIN { FS = ";" }
+ { if ($1 !~ /^('"$at_groups_pattern"')$/) next }
+ { if ($1) printf " %3d: %-18s %s\n", $1, $2, $3
+ if ($4) printf " %s\n", $4 } '
+ exit 0
+fi
+
+# Don't take risks: use only absolute directories in PATH.
+#
+# For stand-alone test suites, AUTOTEST_PATH is relative to `.'.
+#
+# For embedded test suites, AUTOTEST_PATH is relative to the top level
+# of the package. Then expand it into build/src parts, since users
+# may create executables in both places.
+#
+# There might be directories that don't exist, but don't redirect
+# builtins' (eg., cd) stderr directly: Ultrix's sh hates that.
+AUTOTEST_PATH=`echo $AUTOTEST_PATH | tr ':' $PATH_SEPARATOR`
+at_path=
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $AUTOTEST_PATH $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ case $as_dir in
+ [\\/]* | ?:[\\/]* )
+ at_path=$at_path$PATH_SEPARATOR$as_dir
+ ;;
+ * )
+ if test -z "$at_top_builddir"; then
+ # Stand-alone test suite.
+ at_path=$at_path$PATH_SEPARATOR$as_dir
+ else
+ # Embedded test suite.
+ at_path=$at_path$PATH_SEPARATOR$at_top_builddir/$as_dir
+ at_path=$at_path$PATH_SEPARATOR$at_top_srcdir/$as_dir
+ fi
+ ;;
+esac
+done
+
+
+# Now build and simplify PATH.
+PATH=
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $at_path
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ as_dir=`(cd "$as_dir" && pwd) 2>/dev/null`
+test -d "$as_dir" || continue
+case $PATH in
+ $as_dir | \
+ $as_dir$PATH_SEPARATOR* | \
+ *$PATH_SEPARATOR$as_dir | \
+ *$PATH_SEPARATOR$as_dir$PATH_SEPARATOR* ) ;;
+
+ '') PATH=$as_dir ;;
+ *) PATH=$PATH$PATH_SEPARATOR$as_dir ;;
+esac
+done
+
+export PATH
+
+# Setting up the FDs.
+# 5 is the log file. Not to be overwritten if `-d'.
+
+$at_debug_p && at_suite_log=/dev/null
+exec 5>$at_suite_log
+
+# Banners and logs.
+cat <<\_ASBOX
+## ------------------------- ##
+## GNU Bison 2.3 test suite. ##
+## ------------------------- ##
+_ASBOX
+{
+ cat <<\_ASBOX
+## ------------------------- ##
+## GNU Bison 2.3 test suite. ##
+## ------------------------- ##
+_ASBOX
+ echo
+
+ echo "$as_me: command line was:"
+ echo " $ $0 $at_cli_args"
+ echo
+
+ # Try to find a few ChangeLogs in case it might help determining the
+ # exact version. Use the relative dir: if the top dir is a symlink,
+ # find will not follow it (and options to follow the links are not
+ # portable), which would result in no output here.
+ if test -n "$at_top_srcdir"; then
+ cat <<\_ASBOX
+## ----------- ##
+## ChangeLogs. ##
+## ----------- ##
+_ASBOX
+ echo
+ for at_file in `find "$at_top_srcdir" -name ChangeLog -print`
+ do
+ echo "$as_me: $at_file:"
+ sed 's/^/| /;10q' $at_file
+ echo
+ done
+
+ {
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown`
+
+/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown`
+/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+hostinfo = `(hostinfo) 2>/dev/null || echo unknown`
+/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown`
+/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown`
+/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ echo "PATH: $as_dir"
+done
+
+}
+ echo
+ fi
+
+ # Contents of the config files.
+ for at_file in atconfig atlocal
+ do
+ test -r $at_file || continue
+ echo "$as_me: $at_file:"
+ sed 's/^/| /' $at_file
+ echo
+ done
+
+ cat <<\_ASBOX
+## ---------------- ##
+## Tested programs. ##
+## ---------------- ##
+_ASBOX
+ echo
+} >&5
+
+# Report what programs are being tested.
+for at_program in : $at_tested
+do
+ test "$at_program" = : && continue
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -f $as_dir/$at_program && break
+done
+
+ if test -f $as_dir/$at_program; then
+ {
+ echo "local.at:216: $as_dir/$at_program --version"
+ $as_dir/$at_program --version
+ echo
+ } >&5 2>&1
+ else
+ { { echo "$as_me:$LINENO: error: cannot find $at_program" >&5
+echo "$as_me: error: cannot find $at_program" >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+done
+
+{
+ cat <<\_ASBOX
+## ------------------ ##
+## Running the tests. ##
+## ------------------ ##
+_ASBOX
+} >&5
+
+at_start_date=`date`
+at_start_time=`(date +%s) 2>/dev/null`
+echo "$as_me: starting at: $at_start_date" >&5
+at_xpass_list=
+at_xfail_list=
+at_pass_list=
+at_fail_list=
+at_skip_list=
+at_group_count=0
+
+# Create the master directory if it doesn't already exist.
+test -d $at_suite_dir ||
+ mkdir $at_suite_dir ||
+ { { echo "$as_me:$LINENO: error: cannot create $at_suite_dir" >&5
+echo "$as_me: error: cannot create $at_suite_dir" >&2;}
+ { (exit 1); exit 1; }; }
+
+# Can we diff with `/dev/null'? DU 5.0 refuses.
+if diff /dev/null /dev/null >/dev/null 2>&1; then
+ at_devnull=/dev/null
+else
+ at_devnull=$at_suite_dir/devnull
+ cp /dev/null $at_devnull
+fi
+
+# Use `diff -u' when possible.
+if diff -u $at_devnull $at_devnull >/dev/null 2>&1; then
+ at_diff='diff -u'
+else
+ at_diff=diff
+fi
+
+
+for at_group in $at_groups
+do
+ # Be sure to come back to the top test directory.
+ cd $at_suite_dir
+
+ case $at_group in
+ banner-*)
+ at_group_log=$at_suite_log
+ ;;
+
+ *)
+ # Skip tests we already run (using --keywords makes it easy to get
+ # duplication).
+ case " $at_pass_test $at_skip_test $at_fail_test " in
+ *" $at_group "* ) continue;;
+ esac
+
+ # Normalize the test group number.
+ at_group_normalized=`expr "00000$at_group" : ".*\($at_format\)"`
+
+ # Create a fresh directory for the next test group, and enter.
+ at_group_dir=$at_suite_dir/$at_group_normalized
+ at_group_log=$at_group_dir/$as_me.log
+ rm -rf $at_group_dir
+ mkdir $at_group_dir ||
+ { { echo "$as_me:$LINENO: error: cannot create $at_group_dir" >&5
+echo "$as_me: error: cannot create $at_group_dir" >&2;}
+ { (exit 1); exit 1; }; }
+ cd $at_group_dir
+ ;;
+ esac
+
+ echo 0 > $at_status_file
+
+ # Clearly separate the test groups when verbose.
+ test $at_group_count != 0 && $at_verbose
+
+ # In verbose mode, append to the log file *and* show on
+ # the standard output; in quiet mode only write to the log
+ if test $at_verbose = echo; then
+ at_tee_pipe="tee -a $at_group_log"
+ else
+ at_tee_pipe="cat >> $at_group_log"
+ fi
+
+ case $at_group in
+
+ banner-1 ) # Banner 1. input.at:19
+ cat <<\_ATEOF
+
+Input Processing.
+
+_ATEOF
+ ;;
+
+ 1 ) # 1. input.at:28: Invalid dollar-n
+ at_setup_line='input.at:28'
+ at_desc='Invalid dollar-n'
+ $at_quiet $ECHO_N " 1: Invalid dollar-n $ECHO_C"
+ at_xfail=no
+ (
+ echo "1. input.at:28: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%%
+exp: { $$ = $1 ; };
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:37: bison input.y"
+echo input.at:37 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:2.13-14: integer out of range: \`\$1'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "input.at:37: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 2 ) # 2. input.at:46: Invalid @n
+ at_setup_line='input.at:46'
+ at_desc='Invalid @n'
+ $at_quiet $ECHO_N " 2: Invalid @n $ECHO_C"
+ at_xfail=no
+ (
+ echo "2. input.at:46: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%%
+exp: { @$ = @1 ; };
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:55: bison input.y"
+echo input.at:55 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:2.13-14: integer out of range: \`@1'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "input.at:55: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 3 ) # 3. input.at:64: Type Clashes
+ at_setup_line='input.at:64'
+ at_desc='Type Clashes'
+ $at_quiet $ECHO_N " 3: Type Clashes $ECHO_C"
+ at_xfail=no
+ (
+ echo "3. input.at:64: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%token foo
+%type <bar> exp
+%%
+exp: foo {} foo
+ | foo
+ | /* Empty. */
+ ;
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:80: bison input.y"
+echo input.at:80 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:4.6-15: warning: type clash on default action: <bar> != <>
+input.y:5.6-8: warning: type clash on default action: <bar> != <>
+input.y:6.5: warning: empty rule for typed nonterminal, and no action
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:80: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 4 ) # 4. input.at:89: Unused values
+ at_setup_line='input.at:89'
+ at_desc='Unused values'
+ $at_quiet $ECHO_N " 4: Unused values $ECHO_C"
+ at_xfail=no
+ (
+ echo "4. input.at:89: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%token <integer> INT
+%type <integer> a b c d e f g h i j k l
+%destructor { destroy ($$); } INT a b c d e f g h i j k l
+%%
+start:
+ 'a' a { $2 } | 'b' b { $2 } | 'c' c { $2 } | 'd' d { $2 } | 'e' e { $2 }
+| 'f' f { $2 } | 'g' g { $2 } | 'h' h { $2 } | 'i' i { $2 } | 'j' j { $2 }
+| 'k' k { $2 } | 'l' l { $2 }
+;
+
+a: INT | INT { } INT { } INT { };
+b: INT | /* empty */;
+c: INT | INT { $1 } INT { } INT { };
+d: INT | INT { } INT { $1 } INT { };
+e: INT | INT { } INT { } INT { $1 };
+f: INT | INT { } INT { } INT { $$ = $1 + $3 + $5; };
+g: INT | INT { $$ } INT { $$ } INT { };
+h: INT | INT { $$ } INT { $$ = $2 } INT { };
+i: INT | INT INT { } { $$ = $1 + $2; };
+j: INT | INT INT { $<integer>$ = 1; } { $$ = $1 + $2; };
+k: INT | INT INT { $$; } { $$ = $3; } { };
+l: INT | INT { $$ = $1; } INT { $$ = $2 + $3; } INT { $$ = $4 + $5; };
+
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:148: bison input.y"
+echo input.at:148 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:11.10-32: warning: unset value: \$\$
+input.y:11.10-32: warning: unused value: \$1
+input.y:11.10-32: warning: unused value: \$3
+input.y:11.10-32: warning: unused value: \$5
+input.y:12.9: warning: empty rule for typed nonterminal, and no action
+input.y:13.10-35: warning: unset value: \$\$
+input.y:13.10-35: warning: unused value: \$3
+input.y:13.10-35: warning: unused value: \$5
+input.y:14.10-35: warning: unset value: \$\$
+input.y:14.10-35: warning: unused value: \$3
+input.y:14.10-35: warning: unused value: \$5
+input.y:15.10-36: warning: unset value: \$\$
+input.y:15.10-36: warning: unused value: \$3
+input.y:15.10-36: warning: unused value: \$5
+input.y:17.10-38: warning: unset value: \$\$
+input.y:17.10-38: warning: unused value: \$1
+input.y:17.10-38: warning: unused value: \$2
+input.y:17.10-38: warning: unused value: \$3
+input.y:17.10-38: warning: unused value: \$4
+input.y:17.10-38: warning: unused value: \$5
+input.y:18.10-43: warning: unset value: \$\$
+input.y:18.10-43: warning: unused value: \$1
+input.y:18.10-43: warning: unused value: \$3
+input.y:18.10-43: warning: unused value: \$4
+input.y:18.10-43: warning: unused value: \$5
+input.y:20.10-55: warning: unused value: \$3
+input.y:21.10-41: warning: unset value: \$\$
+input.y:21.10-41: warning: unused value: \$1
+input.y:21.10-41: warning: unused value: \$2
+input.y:21.10-41: warning: unused value: \$4
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:148: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 5 ) # 5. input.at:157: Incompatible Aliases
+ at_setup_line='input.at:157'
+ at_desc='Incompatible Aliases'
+ $at_quiet $ECHO_N " 5: Incompatible Aliases $ECHO_C"
+ at_xfail=no
+ (
+ echo "5. input.at:157: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%token foo "foo"
+
+%type <bar> foo
+%printer {bar} foo
+%destructor {bar} foo
+%left foo
+
+%type <baz> "foo"
+%printer {baz} "foo"
+%destructor {baz} "foo"
+%left "foo"
+
+%%
+exp: foo;
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:185: bison input.y"
+echo input.at:185 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:8.7-11: %type redeclaration for foo
+input.y:3.7-11: first declaration
+input.y:10.13-17: %destructor redeclaration for foo
+input.y:5.13-17: first declaration
+input.y:9.10-14: %printer redeclaration for foo
+input.y:10.13-17: first declaration
+input.y:11.1-5: %left redeclaration for foo
+input.y:6.1-5: first declaration
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "input.at:185: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 6 ) # 6. input.at:198: Torturing the Scanner
+ at_setup_line='input.at:198'
+ at_desc='Torturing the Scanner'
+ $at_quiet $ECHO_N " 6: Torturing the Scanner $ECHO_C"
+ at_xfail=no
+ (
+ echo "6. input.at:198: testing ..."
+ $at_traceon
+
+
+
+cat >input.y <<'_ATEOF'
+_ATEOF
+
+$at_traceoff
+echo "input.at:204: bison input.y"
+echo input.at:204 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:1.1: syntax error, unexpected end of file
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "input.at:204: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+cat >input.y <<'_ATEOF'
+{}
+_ATEOF
+
+$at_traceoff
+echo "input.at:212: bison input.y"
+echo input.at:212 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:1.1-2: syntax error, unexpected {...}
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "input.at:212: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+/* This is seen in GCC: a %{ and %} in middle of a comment. */
+const char *foo = "So %{ and %} can be here too.";
+
+#if 0
+/* These examples test Bison while not stressing C compilers too much.
+ Many C compilers mishandle backslash-newlines, so this part of the
+ test is inside "#if 0". The comment and string are written so that
+ the "#endif" will be seen regardless of the C compiler bugs that we
+ know about, namely:
+
+ HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
+ comment.
+
+ The Apple Darwin compiler (as of late 2002) mishandles
+ \\[newline]' within a character constant.
+
+ */
+
+/\
+* A comment with backslash-newlines in it. %} *\
+\
+/
+/* { Close the above comment, if the C compiler mishandled it. */
+
+char str[] = "\\
+" A string with backslash-newlines in it %{ %} \\
+\
+"";
+
+char apostrophe = '\'';
+#endif
+
+#include <stdio.h>
+%}
+/* %{ and %} can be here too. */
+
+%{
+/* Exercise pre-prologue dependency to %union. */
+typedef int value;
+%}
+
+/* Exercise M4 quoting: ']]', 0. */
+
+/* Also exercise %union. */
+%union
+{
+ value ival; /* A comment to exercise an old bug. */
+};
+
+
+/* Exercise post-prologue dependency to %union. */
+%{
+static YYSTYPE value_as_yystype (value val);
+
+/* Exercise quotes in declarations. */
+char quote[] = "]],";
+%}
+
+%{
+static void yyerror (const char *s);
+static int yylex (void);
+%}
+
+%type <ival> '['
+
+/* Exercise quotes in strings. */
+%token FAKE "fake [] \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x1\1"
+
+%%
+/* Exercise M4 quoting: ']]', [, 1. */
+exp: '[' '\1' two '$' '@' '{' oline output.or.oline.opt
+ {
+ /* Exercise quotes in braces. */
+ char tmp[] = "[%c],\n";
+ printf (tmp, $1);
+ }
+;
+
+two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
+oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
+output.or.oline.opt: ;|oline;;|output;;;
+output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
+%%
+/* Exercise M4 quoting: ']]', [, 2. */
+
+static YYSTYPE
+value_as_yystype (value val)
+{
+ YYSTYPE res;
+ res.ival = val;
+ return res;
+}
+
+static int
+yylex (void)
+{
+ static const char *input = "[\1\2$@{@oline@__oline__\
+#output "; /* "
+ */
+ yylval = value_as_yystype (*input);
+ return *input++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+_ATEOF
+
+
+
+# Pacify Emacs'font-lock-mode: "
+
+cat >main.c <<'_ATEOF'
+typedef int value;
+#include "input.h"
+
+int yyparse (void);
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:342: bison -d -v -o input.c input.y"
+echo input.at:342 >$at_check_line_file
+( $at_traceon; bison -d -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:342: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "input.at:343: \$CC \$CFLAGS \$CPPFLAGS -o input.o -c input.c"
+echo input.at:343 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o input.o -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:343: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "input.at:344: \$CC \$CFLAGS \$CPPFLAGS -o main.o -c main.c"
+echo input.at:344 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o main.o -c main.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:344: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "input.at:345: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.o main.o \$LIBS"
+echo input.at:345 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.o main.o $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:345: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "input.at:348: \$PREPARSER ./input"
+echo input.at:348 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "[[],
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:348: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 7 ) # 7. input.at:357: Typed symbol aliases
+ at_setup_line='input.at:357'
+ at_desc='Typed symbol aliases'
+ $at_quiet $ECHO_N " 7: Typed symbol aliases $ECHO_C"
+ at_xfail=no
+ (
+ echo "7. input.at:357: testing ..."
+ $at_traceon
+
+
+# Bison 2.0 broke typed symbol aliases - ensure they work.
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%union
+{
+ int val;
+};
+%token <val> MY_TOKEN "MY TOKEN"
+%type <val> exp
+%%
+exp: "MY TOKEN";
+%%
+_ATEOF
+
+
+
+$at_traceoff
+echo "input.at:373: bison -o input.c input.y"
+echo input.at:373 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:373: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 8 ) # 8. input.at:393: Require 1.0
+ at_setup_line='input.at:393'
+ at_desc='Require 1.0'
+ $at_quiet $ECHO_N " 8: Require 1.0 $ECHO_C"
+ at_xfail=no
+ (
+ echo "8. input.at:393: testing ..."
+ $at_traceon
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%require "1.0";
+%%
+empty_file:;
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:393: bison -o input.c input.y"
+echo input.at:393 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:393: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 9 ) # 9. input.at:394: Require 2.3
+ at_setup_line='input.at:394'
+ at_desc='Require 2.3'
+ $at_quiet $ECHO_N " 9: Require 2.3 $ECHO_C"
+ at_xfail=no
+ (
+ echo "9. input.at:394: testing ..."
+ $at_traceon
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%require "2.3";
+%%
+empty_file:;
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:394: bison -o input.c input.y"
+echo input.at:394 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "input.at:394: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 10 ) # 10. input.at:396: Require 100.0
+ at_setup_line='input.at:396'
+ at_desc='Require 100.0'
+ $at_quiet $ECHO_N " 10: Require 100.0 $ECHO_C"
+ at_xfail=no
+ (
+ echo "10. input.at:396: testing ..."
+ $at_traceon
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%require "100.0";
+%%
+empty_file:;
+_ATEOF
+
+
+$at_traceoff
+echo "input.at:396: bison -o input.c input.y"
+echo input.at:396 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 63) ;;
+ *) echo "input.at:396: exit code was $at_status, expected 63"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-2 ) # Banner 2. output.at:19
+ cat <<\_ATEOF
+
+Output file names.
+
+_ATEOF
+ ;;
+
+ 11 ) # 11. output.at:43: Output files: -dv
+ at_setup_line='output.at:43'
+ at_desc='Output files: -dv '
+ $at_quiet $ECHO_N " 11: Output files: -dv $ECHO_C"
+ at_xfail=no
+ (
+ echo "11. output.at:43: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:43: bison -dv foo.y "
+echo output.at:43 >$at_check_line_file
+( $at_traceon; bison -dv foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:43: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:43: ls foo.output foo.tab.c foo.tab.h"
+echo output.at:43 >$at_check_line_file
+( $at_traceon; ls foo.output foo.tab.c foo.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:43: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 12 ) # 12. output.at:46: Output files: -dv >&-
+ at_setup_line='output.at:46'
+ at_desc='Output files: -dv >&-'
+ $at_quiet $ECHO_N " 12: Output files: -dv >&- $ECHO_C"
+ at_xfail=no
+ (
+ echo "12. output.at:46: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:46: bison -dv foo.y >&-"
+echo output.at:46 >$at_check_line_file
+( $at_traceon; bison -dv foo.y >&- ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:46: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:46: ls foo.output foo.tab.c foo.tab.h"
+echo output.at:46 >$at_check_line_file
+( $at_traceon; ls foo.output foo.tab.c foo.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:46: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 13 ) # 13. output.at:48: Output files: -dv -o foo.c
+ at_setup_line='output.at:48'
+ at_desc='Output files: -dv -o foo.c '
+ $at_quiet $ECHO_N " 13: Output files: -dv -o foo.c $ECHO_C"
+ at_xfail=no
+ (
+ echo "13. output.at:48: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:48: bison -dv -o foo.c foo.y "
+echo output.at:48 >$at_check_line_file
+( $at_traceon; bison -dv -o foo.c foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:48: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:48: ls foo.c foo.h foo.output"
+echo output.at:48 >$at_check_line_file
+( $at_traceon; ls foo.c foo.h foo.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:48: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 14 ) # 14. output.at:50: Output files: -dv -o foo.tab.c
+ at_setup_line='output.at:50'
+ at_desc='Output files: -dv -o foo.tab.c '
+ $at_quiet $ECHO_N " 14: Output files: -dv -o foo.tab.c $ECHO_C"
+ at_xfail=no
+ (
+ echo "14. output.at:50: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:50: bison -dv -o foo.tab.c foo.y "
+echo output.at:50 >$at_check_line_file
+( $at_traceon; bison -dv -o foo.tab.c foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:50: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:50: ls foo.output foo.tab.c foo.tab.h"
+echo output.at:50 >$at_check_line_file
+( $at_traceon; ls foo.output foo.tab.c foo.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:50: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 15 ) # 15. output.at:52: Output files: -dv -y
+ at_setup_line='output.at:52'
+ at_desc='Output files: -dv -y '
+ $at_quiet $ECHO_N " 15: Output files: -dv -y $ECHO_C"
+ at_xfail=no
+ (
+ echo "15. output.at:52: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:52: bison -dv -y foo.y "
+echo output.at:52 >$at_check_line_file
+( $at_traceon; bison -dv -y foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:52: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:52: ls y.output y.tab.c y.tab.h"
+echo output.at:52 >$at_check_line_file
+( $at_traceon; ls y.output y.tab.c y.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:52: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 16 ) # 16. output.at:54: Output files: -dv -b bar
+ at_setup_line='output.at:54'
+ at_desc='Output files: -dv -b bar '
+ $at_quiet $ECHO_N " 16: Output files: -dv -b bar $ECHO_C"
+ at_xfail=no
+ (
+ echo "16. output.at:54: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:54: bison -dv -b bar foo.y "
+echo output.at:54 >$at_check_line_file
+( $at_traceon; bison -dv -b bar foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:54: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:54: ls bar.output bar.tab.c bar.tab.h"
+echo output.at:54 >$at_check_line_file
+( $at_traceon; ls bar.output bar.tab.c bar.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:54: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 17 ) # 17. output.at:56: Output files: -dv -g -o foo.c
+ at_setup_line='output.at:56'
+ at_desc='Output files: -dv -g -o foo.c '
+ $at_quiet $ECHO_N " 17: Output files: -dv -g -o foo.c $ECHO_C"
+ at_xfail=no
+ (
+ echo "17. output.at:56: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:56: bison -dv -g -o foo.c foo.y "
+echo output.at:56 >$at_check_line_file
+( $at_traceon; bison -dv -g -o foo.c foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:56: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:56: ls foo.c foo.h foo.output foo.vcg"
+echo output.at:56 >$at_check_line_file
+( $at_traceon; ls foo.c foo.h foo.output foo.vcg ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:56: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 18 ) # 18. output.at:60: Output files: %defines %verbose
+ at_setup_line='output.at:60'
+ at_desc='Output files: %defines %verbose '
+ $at_quiet $ECHO_N " 18: Output files: %defines %verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "18. output.at:60: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+%defines %verbose
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:60: bison foo.y "
+echo output.at:60 >$at_check_line_file
+( $at_traceon; bison foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:60: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:60: ls foo.output foo.tab.c foo.tab.h"
+echo output.at:60 >$at_check_line_file
+( $at_traceon; ls foo.output foo.tab.c foo.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:60: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 19 ) # 19. output.at:62: Output files: %defines %verbose %yacc
+ at_setup_line='output.at:62'
+ at_desc='Output files: %defines %verbose %yacc '
+ $at_quiet $ECHO_N " 19: Output files: %defines %verbose %yacc $ECHO_C"
+ at_xfail=no
+ (
+ echo "19. output.at:62: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+%defines %verbose %yacc
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:62: bison foo.y "
+echo output.at:62 >$at_check_line_file
+( $at_traceon; bison foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:62: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:62: ls y.output y.tab.c y.tab.h"
+echo output.at:62 >$at_check_line_file
+( $at_traceon; ls y.output y.tab.c y.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:62: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 20 ) # 20. output.at:65: Output files: %defines %verbose %yacc
+ at_setup_line='output.at:65'
+ at_desc='Output files: %defines %verbose %yacc '
+ $at_quiet $ECHO_N " 20: Output files: %defines %verbose %yacc $ECHO_C"
+ at_xfail=no
+ (
+ echo "20. output.at:65: testing ..."
+ $at_traceon
+
+case "foo.yy" in
+ */*) mkdir `echo "foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >foo.yy <<'_ATEOF'
+%defines %verbose %yacc
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:65: bison foo.yy "
+echo output.at:65 >$at_check_line_file
+( $at_traceon; bison foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:65: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:65: ls y.output y.tab.c y.tab.h"
+echo output.at:65 >$at_check_line_file
+( $at_traceon; ls y.output y.tab.c y.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:65: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 21 ) # 21. output.at:69: Output files: %file-prefix="bar" %defines %verbose
+ at_setup_line='output.at:69'
+ at_desc='Output files: %file-prefix="bar" %defines %verbose '
+ $at_quiet $ECHO_N " 21: Output files: %file-prefix="bar" %defines %verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "21. output.at:69: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+%file-prefix="bar" %defines %verbose
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:69: bison foo.y "
+echo output.at:69 >$at_check_line_file
+( $at_traceon; bison foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:69: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:69: ls bar.output bar.tab.c bar.tab.h"
+echo output.at:69 >$at_check_line_file
+( $at_traceon; ls bar.output bar.tab.c bar.tab.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:69: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 22 ) # 22. output.at:71: Output files: %output="bar.c" %defines %verbose %yacc
+ at_setup_line='output.at:71'
+ at_desc='Output files: %output="bar.c" %defines %verbose %yacc '
+ $at_quiet $ECHO_N " 22: Output files: %output="bar.c" %defines %verbose %yacc $ECHO_C"
+ at_xfail=no
+ (
+ echo "22. output.at:71: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+%output="bar.c" %defines %verbose %yacc
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:71: bison foo.y "
+echo output.at:71 >$at_check_line_file
+( $at_traceon; bison foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:71: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:71: ls bar.output bar.c bar.h"
+echo output.at:71 >$at_check_line_file
+( $at_traceon; ls bar.output bar.c bar.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:71: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 23 ) # 23. output.at:75: Output files: %file-prefix="baz" %output="bar.c" %defines %verbose %yacc
+ at_setup_line='output.at:75'
+ at_desc='Output files: %file-prefix="baz" %output="bar.c" %defines %verbose %yacc '
+ $at_quiet $ECHO_N " 23: Output files: %file-prefix="baz" %output="bar.c" %defines %verbose %yacc $ECHO_C"
+ at_xfail=no
+ (
+ echo "23. output.at:75: testing ..."
+ $at_traceon
+
+case "foo.y" in
+ */*) mkdir `echo "foo.y" | sed 's,/.*,,'`;;
+esac
+cat >foo.y <<'_ATEOF'
+%file-prefix="baz" %output="bar.c" %defines %verbose %yacc
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:75: bison foo.y "
+echo output.at:75 >$at_check_line_file
+( $at_traceon; bison foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:75: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:75: ls bar.output bar.c bar.h"
+echo output.at:75 >$at_check_line_file
+( $at_traceon; ls bar.output bar.c bar.h ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:75: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 24 ) # 24. output.at:80: Output files: %defines %verbose
+ at_setup_line='output.at:80'
+ at_desc='Output files: %defines %verbose '
+ $at_quiet $ECHO_N " 24: Output files: %defines %verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "24. output.at:80: testing ..."
+ $at_traceon
+
+case "foo.yy" in
+ */*) mkdir `echo "foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >foo.yy <<'_ATEOF'
+%defines %verbose
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:80: bison foo.yy "
+echo output.at:80 >$at_check_line_file
+( $at_traceon; bison foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:80: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:80: ls foo.output foo.tab.cc foo.tab.hh"
+echo output.at:80 >$at_check_line_file
+( $at_traceon; ls foo.output foo.tab.cc foo.tab.hh ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:80: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 25 ) # 25. output.at:83: Output files: %defines %verbose -o foo.c
+ at_setup_line='output.at:83'
+ at_desc='Output files: %defines %verbose -o foo.c '
+ $at_quiet $ECHO_N " 25: Output files: %defines %verbose -o foo.c $ECHO_C"
+ at_xfail=no
+ (
+ echo "25. output.at:83: testing ..."
+ $at_traceon
+
+case "foo.yy" in
+ */*) mkdir `echo "foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >foo.yy <<'_ATEOF'
+%defines %verbose
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:83: bison -o foo.c foo.yy "
+echo output.at:83 >$at_check_line_file
+( $at_traceon; bison -o foo.c foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:83: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:83: ls foo.c foo.h foo.output"
+echo output.at:83 >$at_check_line_file
+( $at_traceon; ls foo.c foo.h foo.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:83: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 26 ) # 26. output.at:87: Output files: --defines=foo.hpp -o foo.c++
+ at_setup_line='output.at:87'
+ at_desc='Output files: --defines=foo.hpp -o foo.c++ '
+ $at_quiet $ECHO_N " 26: Output files: --defines=foo.hpp -o foo.c++ $ECHO_C"
+ at_xfail=no
+ (
+ echo "26. output.at:87: testing ..."
+ $at_traceon
+
+case "foo.yy" in
+ */*) mkdir `echo "foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >foo.yy <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:87: bison --defines=foo.hpp -o foo.c++ foo.yy "
+echo output.at:87 >$at_check_line_file
+( $at_traceon; bison --defines=foo.hpp -o foo.c++ foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:87: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:87: ls foo.c++ foo.hpp"
+echo output.at:87 >$at_check_line_file
+( $at_traceon; ls foo.c++ foo.hpp ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:87: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 27 ) # 27. output.at:91: Output files: -o foo.c++ --graph=foo.gph
+ at_setup_line='output.at:91'
+ at_desc='Output files: -o foo.c++ --graph=foo.gph '
+ $at_quiet $ECHO_N " 27: Output files: -o foo.c++ --graph=foo.gph $ECHO_C"
+ at_xfail=no
+ (
+ echo "27. output.at:91: testing ..."
+ $at_traceon
+
+case "foo.yy" in
+ */*) mkdir `echo "foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >foo.yy <<'_ATEOF'
+
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:91: bison -o foo.c++ --graph=foo.gph foo.yy "
+echo output.at:91 >$at_check_line_file
+( $at_traceon; bison -o foo.c++ --graph=foo.gph foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:91: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:91: ls foo.c++ foo.gph"
+echo output.at:91 >$at_check_line_file
+( $at_traceon; ls foo.c++ foo.gph ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:91: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 28 ) # 28. output.at:105: Output files: %skeleton "lalr1.cc" %defines %verbose
+ at_setup_line='output.at:105'
+ at_desc='Output files: %skeleton "lalr1.cc" %defines %verbose '
+ $at_quiet $ECHO_N " 28: Output files: %skeleton "lalr1.cc" %defines %verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "28. output.at:105: testing ..."
+ $at_traceon
+
+case "foo.yy" in
+ */*) mkdir `echo "foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >foo.yy <<'_ATEOF'
+%skeleton "lalr1.cc" %defines %verbose
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:105: bison foo.yy "
+echo output.at:105 >$at_check_line_file
+( $at_traceon; bison foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:105: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:105: ls foo.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh"
+echo output.at:105 >$at_check_line_file
+( $at_traceon; ls foo.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:105: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 29 ) # 29. output.at:109: Output files: %skeleton "lalr1.cc" %defines %verbose
+ at_setup_line='output.at:109'
+ at_desc='Output files: %skeleton "lalr1.cc" %defines %verbose '
+ $at_quiet $ECHO_N " 29: Output files: %skeleton "lalr1.cc" %defines %verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "29. output.at:109: testing ..."
+ $at_traceon
+
+case "subdir/foo.yy" in
+ */*) mkdir `echo "subdir/foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >subdir/foo.yy <<'_ATEOF'
+%skeleton "lalr1.cc" %defines %verbose
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:109: bison subdir/foo.yy "
+echo output.at:109 >$at_check_line_file
+( $at_traceon; bison subdir/foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:109: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:109: ls foo.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh"
+echo output.at:109 >$at_check_line_file
+( $at_traceon; ls foo.tab.cc foo.tab.hh foo.output location.hh stack.hh position.hh ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:109: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# Also make sure that the includes do not refer to the subdirectory.
+$at_traceoff
+echo "output.at:109: grep 'include .subdir/' foo.tab.cc"
+echo output.at:109 >$at_check_line_file
+( $at_traceon; grep 'include .subdir/' foo.tab.cc ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "output.at:109: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:109: grep 'include .subdir/' foo.tab.hh"
+echo output.at:109 >$at_check_line_file
+( $at_traceon; grep 'include .subdir/' foo.tab.hh ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "output.at:109: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 30 ) # 30. output.at:114: Output files: %skeleton "lalr1.cc" %defines %verbose -o subdir/foo.cc
+ at_setup_line='output.at:114'
+ at_desc='Output files: %skeleton "lalr1.cc" %defines %verbose -o subdir/foo.cc '
+ $at_quiet $ECHO_N " 30: Output files: %skeleton "lalr1.cc" %defines %verbose -o subdir/foo.cc $ECHO_C"
+ at_xfail=no
+ (
+ echo "30. output.at:114: testing ..."
+ $at_traceon
+
+case "subdir/foo.yy" in
+ */*) mkdir `echo "subdir/foo.yy" | sed 's,/.*,,'`;;
+esac
+cat >subdir/foo.yy <<'_ATEOF'
+%skeleton "lalr1.cc" %defines %verbose
+%%
+foo: {};
+_ATEOF
+
+
+$at_traceoff
+echo "output.at:114: bison -o subdir/foo.cc subdir/foo.yy "
+echo output.at:114 >$at_check_line_file
+( $at_traceon; bison -o subdir/foo.cc subdir/foo.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:114: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:114: ls subdir/foo.cc subdir/foo.hh subdir/foo.output subdir/location.hh subdir/stack.hh subdir/position.hh"
+echo output.at:114 >$at_check_line_file
+( $at_traceon; ls subdir/foo.cc subdir/foo.hh subdir/foo.output subdir/location.hh subdir/stack.hh subdir/position.hh ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "output.at:114: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# Also make sure that the includes do not refer to the subdirectory.
+$at_traceoff
+echo "output.at:114: grep 'include .subdir/' subdir/foo.cc"
+echo output.at:114 >$at_check_line_file
+( $at_traceon; grep 'include .subdir/' subdir/foo.cc ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "output.at:114: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "output.at:114: grep 'include .subdir/' subdir/foo.hh"
+echo output.at:114 >$at_check_line_file
+( $at_traceon; grep 'include .subdir/' subdir/foo.hh ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "output.at:114: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-3 ) # Banner 3. sets.at:59
+ cat <<\_ATEOF
+
+Grammar Sets (Firsts etc.).
+
+_ATEOF
+ ;;
+
+ 31 ) # 31. sets.at:66: Nullable
+ at_setup_line='sets.at:66'
+ at_desc='Nullable'
+ $at_quiet $ECHO_N " 31: Nullable $ECHO_C"
+ at_xfail=no
+ (
+ echo "31. sets.at:66: testing ..."
+ $at_traceon
+
+
+# At some point, nullable had been smoking grass, and managed to say:
+#
+# Entering set_nullable
+# NULLABLE
+# 'e': yes
+# (null): no
+# ...
+
+cat >input.y <<'_ATEOF'
+%%
+e: 'e' | /* Nothing */;
+_ATEOF
+
+
+$at_traceoff
+echo "sets.at:81: bison --trace=sets input.y"
+echo sets.at:81 >$at_check_line_file
+( $at_traceon; bison --trace=sets input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:81: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+cat >extract.sed <<'_ATEOF'
+#n
+/^NULLABLE$/ {
+ :null
+ p
+ n
+ /^[ ]*$/ !b null
+}
+/^FIRSTS$/ {
+ :firsts
+ p
+ n
+ /^[ ]*$/ !b firsts
+}
+/^FDERIVES$/ {
+ :fderiv
+ p
+ n
+ /^[ ]*$/ !b fderiv
+}
+/^DERIVES$/ {
+ :deriv
+ p
+ n
+ /^[ ]*$/ !b deriv
+}
+_ATEOF
+
+$at_traceoff
+echo "sets.at:82: sed -f extract.sed stderr"
+echo sets.at:82 >$at_check_line_file
+( $at_traceon; sed -f extract.sed stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:82: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "sets.at:82: mv stdout sets"
+echo sets.at:82 >$at_check_line_file
+( $at_traceon; mv stdout sets ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:82: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "sets.at:107: cat sets"
+echo sets.at:107 >$at_check_line_file
+( $at_traceon; cat sets ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "DERIVES
+ \$accept derives
+ 0 e \$end
+ e derives
+ 1 'e'
+ 2 /* empty */
+NULLABLE
+ \$accept: no
+ e: yes
+FIRSTS
+ \$accept firsts
+ \$accept
+ e
+ e firsts
+ e
+FDERIVES
+ \$accept derives
+ 0 e \$end
+ 1 'e'
+ 2 /* empty */
+ e derives
+ 1 'e'
+ 2 /* empty */
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:107: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 32 ) # 32. sets.at:151: Broken Closure
+ at_setup_line='sets.at:151'
+ at_desc='Broken Closure'
+ $at_quiet $ECHO_N " 32: Broken Closure $ECHO_C"
+ at_xfail=no
+ (
+ echo "32. sets.at:151: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%%
+a: b;
+b: c;
+c: d;
+d: e;
+e: f;
+f: g;
+g: h;
+h: 'h';
+_ATEOF
+
+
+$at_traceoff
+echo "sets.at:165: bison --trace=sets input.y"
+echo sets.at:165 >$at_check_line_file
+( $at_traceon; bison --trace=sets input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:165: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "sets.at:183: sed -n 's/[ ]*\$//;/^RTC: Firsts Output BEGIN/,/^RTC: Firsts Output END/p' stderr"
+echo sets.at:183 >$at_check_line_file
+( $at_traceon; sed -n 's/[ ]*$//;/^RTC: Firsts Output BEGIN/,/^RTC: Firsts Output END/p' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "RTC: Firsts Output BEGIN
+
+ 012345678
+ .---------.
+ 0|111111111|
+ 1| 11111111|
+ 2| 1111111|
+ 3| 111111|
+ 4| 11111|
+ 5| 1111|
+ 6| 111|
+ 7| 11|
+ 8| 1|
+ \`---------'
+RTC: Firsts Output END
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:183: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 33 ) # 33. sets.at:193: Firsts
+ at_setup_line='sets.at:193'
+ at_desc='Firsts'
+ $at_quiet $ECHO_N " 33: Firsts $ECHO_C"
+ at_xfail=no
+ (
+ echo "33. sets.at:193: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%nonassoc '<' '>'
+%left '+' '-'
+%right '^' '='
+%%
+exp:
+ exp '<' exp
+ | exp '>' exp
+ | exp '+' exp
+ | exp '-' exp
+ | exp '^' exp
+ | exp '=' exp
+ | "exp"
+ ;
+_ATEOF
+
+
+$at_traceoff
+echo "sets.at:211: bison --trace=sets input.y"
+echo sets.at:211 >$at_check_line_file
+( $at_traceon; bison --trace=sets input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:211: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+cat >extract.sed <<'_ATEOF'
+#n
+/^NULLABLE$/ {
+ :null
+ p
+ n
+ /^[ ]*$/ !b null
+}
+/^FIRSTS$/ {
+ :firsts
+ p
+ n
+ /^[ ]*$/ !b firsts
+}
+/^FDERIVES$/ {
+ :fderiv
+ p
+ n
+ /^[ ]*$/ !b fderiv
+}
+/^DERIVES$/ {
+ :deriv
+ p
+ n
+ /^[ ]*$/ !b deriv
+}
+_ATEOF
+
+$at_traceoff
+echo "sets.at:212: sed -f extract.sed stderr"
+echo sets.at:212 >$at_check_line_file
+( $at_traceon; sed -f extract.sed stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:212: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "sets.at:212: mv stdout sets"
+echo sets.at:212 >$at_check_line_file
+( $at_traceon; mv stdout sets ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:212: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "sets.at:252: cat sets"
+echo sets.at:252 >$at_check_line_file
+( $at_traceon; cat sets ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "DERIVES
+ \$accept derives
+ 0 exp \$end
+ exp derives
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 \"exp\"
+NULLABLE
+ \$accept: no
+ exp: no
+FIRSTS
+ \$accept firsts
+ \$accept
+ exp
+ exp firsts
+ exp
+FDERIVES
+ \$accept derives
+ 0 exp \$end
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 \"exp\"
+ exp derives
+ 1 exp '<' exp
+ 2 exp '>' exp
+ 3 exp '+' exp
+ 4 exp '-' exp
+ 5 exp '^' exp
+ 6 exp '=' exp
+ 7 \"exp\"
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:252: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 34 ) # 34. sets.at:269: Accept
+ at_setup_line='sets.at:269'
+ at_desc='Accept'
+ $at_quiet $ECHO_N " 34: Accept $ECHO_C"
+ at_xfail=no
+ (
+ echo "34. sets.at:269: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%token END 0
+%%
+input:
+ 'a'
+| '(' input ')'
+| '(' error END
+;
+_ATEOF
+
+
+$at_traceoff
+echo "sets.at:281: bison -v -o input.c input.y"
+echo sets.at:281 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:281: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Get the final state in the parser.
+$at_traceoff
+echo "sets.at:285: sed -n 's/.*define YYFINAL *\\([0-9][0-9]*\\)/final state \\1/p' input.c"
+echo sets.at:285 >$at_check_line_file
+( $at_traceon; sed -n 's/.*define YYFINAL *\([0-9][0-9]*\)/final state \1/p' input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:285: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+mv stdout expout
+
+# Get the final state in the report, from the "accept" action..
+$at_traceoff
+echo "sets.at:300: sed -n '
+ /^state \\(.*\\)/{
+ s//final state \\1/
+ x
+ }
+ / accept/{
+ x
+ p
+ q
+ }
+ ' input.output"
+echo sets.at:300 >$at_check_line_file
+( $at_traceon; sed -n '
+ /^state \(.*\)/{
+ s//final state \1/
+ x
+ }
+ / accept/{
+ x
+ p
+ q
+ }
+ ' input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "sets.at:300: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-4 ) # Banner 4. reduce.at:19
+ cat <<\_ATEOF
+
+Grammar Reduction.
+
+_ATEOF
+ ;;
+
+ 35 ) # 35. reduce.at:26: Useless Terminals
+ at_setup_line='reduce.at:26'
+ at_desc='Useless Terminals'
+ $at_quiet $ECHO_N " 35: Useless Terminals $ECHO_C"
+ at_xfail=no
+ (
+ echo "35. reduce.at:26: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%verbose
+%output="input.c"
+
+%token useless1
+%token useless2
+%token useless3
+%token useless4
+%token useless5
+%token useless6
+%token useless7
+%token useless8
+%token useless9
+
+%token useful
+%%
+exp: useful;
+_ATEOF
+
+
+$at_traceoff
+echo "reduce.at:47: bison input.y"
+echo reduce.at:47 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:47: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "reduce.at:60: sed -n '/^Grammar/q;/^\$/!p' input.output"
+echo reduce.at:60 >$at_check_line_file
+( $at_traceon; sed -n '/^Grammar/q;/^$/!p' input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Terminals which are not used
+ useless1
+ useless2
+ useless3
+ useless4
+ useless5
+ useless6
+ useless7
+ useless8
+ useless9
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:60: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 36 ) # 36. reduce.at:70: Useless Nonterminals
+ at_setup_line='reduce.at:70'
+ at_desc='Useless Nonterminals'
+ $at_quiet $ECHO_N " 36: Useless Nonterminals $ECHO_C"
+ at_xfail=no
+ (
+ echo "36. reduce.at:70: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%verbose
+%output="input.c"
+
+%nterm useless1
+%nterm useless2
+%nterm useless3
+%nterm useless4
+%nterm useless5
+%nterm useless6
+%nterm useless7
+%nterm useless8
+%nterm useless9
+
+%token useful
+%%
+exp: useful;
+_ATEOF
+
+
+$at_traceoff
+echo "reduce.at:102: bison input.y"
+echo reduce.at:102 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: warning: 9 useless nonterminals
+input.y:4.8-15: warning: useless nonterminal: useless1
+input.y:5.8-15: warning: useless nonterminal: useless2
+input.y:6.8-15: warning: useless nonterminal: useless3
+input.y:7.8-15: warning: useless nonterminal: useless4
+input.y:8.8-15: warning: useless nonterminal: useless5
+input.y:9.8-15: warning: useless nonterminal: useless6
+input.y:10.8-15: warning: useless nonterminal: useless7
+input.y:11.8-15: warning: useless nonterminal: useless8
+input.y:12.8-15: warning: useless nonterminal: useless9
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:102: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "reduce.at:115: sed -n '/^Grammar/q;/^\$/!p' input.output"
+echo reduce.at:115 >$at_check_line_file
+( $at_traceon; sed -n '/^Grammar/q;/^$/!p' input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Useless nonterminals
+ useless1
+ useless2
+ useless3
+ useless4
+ useless5
+ useless6
+ useless7
+ useless8
+ useless9
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:115: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 37 ) # 37. reduce.at:125: Useless Rules
+ at_setup_line='reduce.at:125'
+ at_desc='Useless Rules'
+ $at_quiet $ECHO_N " 37: Useless Rules $ECHO_C"
+ at_xfail=no
+ (
+ echo "37. reduce.at:125: testing ..."
+ $at_traceon
+
+
+
+
+cat >input.y <<'_ATEOF'
+%verbose
+%output="input.c"
+%token useful
+%%
+exp: useful;
+useless1: '1';
+useless2: '2';
+useless3: '3';
+useless4: '4';
+useless5: '5';
+useless6: '6';
+useless7: '7';
+useless8: '8';
+useless9: '9';
+_ATEOF
+
+
+$at_traceoff
+echo "reduce.at:166: bison input.y"
+echo reduce.at:166 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: warning: 9 useless nonterminals and 9 useless rules
+input.y:6.1-8: warning: useless nonterminal: useless1
+input.y:7.1-8: warning: useless nonterminal: useless2
+input.y:8.1-8: warning: useless nonterminal: useless3
+input.y:9.1-8: warning: useless nonterminal: useless4
+input.y:10.1-8: warning: useless nonterminal: useless5
+input.y:11.1-8: warning: useless nonterminal: useless6
+input.y:12.1-8: warning: useless nonterminal: useless7
+input.y:13.1-8: warning: useless nonterminal: useless8
+input.y:14.1-8: warning: useless nonterminal: useless9
+input.y:6.11-13: warning: useless rule: useless1: '1'
+input.y:7.11-13: warning: useless rule: useless2: '2'
+input.y:8.11-13: warning: useless rule: useless3: '3'
+input.y:9.11-13: warning: useless rule: useless4: '4'
+input.y:10.11-13: warning: useless rule: useless5: '5'
+input.y:11.11-13: warning: useless rule: useless6: '6'
+input.y:12.11-13: warning: useless rule: useless7: '7'
+input.y:13.11-13: warning: useless rule: useless8: '8'
+input.y:14.11-13: warning: useless rule: useless9: '9'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:166: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "reduce.at:199: sed -n '/^Grammar/q;/^\$/!p' input.output"
+echo reduce.at:199 >$at_check_line_file
+( $at_traceon; sed -n '/^Grammar/q;/^$/!p' input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Useless nonterminals
+ useless1
+ useless2
+ useless3
+ useless4
+ useless5
+ useless6
+ useless7
+ useless8
+ useless9
+Terminals which are not used
+ '1'
+ '2'
+ '3'
+ '4'
+ '5'
+ '6'
+ '7'
+ '8'
+ '9'
+Useless rules
+ 2 useless1: '1'
+ 3 useless2: '2'
+ 4 useless3: '3'
+ 5 useless4: '4'
+ 6 useless5: '5'
+ 7 useless6: '6'
+ 8 useless7: '7'
+ 9 useless8: '8'
+ 10 useless9: '9'
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:199: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 38 ) # 38. reduce.at:212: Reduced Automaton
+ at_setup_line='reduce.at:212'
+ at_desc='Reduced Automaton'
+ $at_quiet $ECHO_N " 38: Reduced Automaton $ECHO_C"
+ at_xfail=no
+ (
+ echo "38. reduce.at:212: testing ..."
+ $at_traceon
+
+
+
+
+# The non reduced grammar.
+# ------------------------
+cat >not-reduced.y <<'_ATEOF'
+/* A useless token. */
+%token useless_token
+/* A useful one. */
+%token useful
+%verbose
+%output="not-reduced.c"
+
+%%
+
+exp: useful { /* A useful action. */ }
+ | non_productive { /* A non productive action. */ }
+ ;
+
+not_reachable: useful { /* A not reachable action. */ }
+ ;
+
+non_productive: non_productive useless_token
+ { /* Another non productive action. */ }
+ ;
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "reduce.at:248: bison not-reduced.y"
+echo reduce.at:248 >$at_check_line_file
+( $at_traceon; bison not-reduced.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "not-reduced.y: warning: 2 useless nonterminals and 3 useless rules
+not-reduced.y:14.1-13: warning: useless nonterminal: not_reachable
+not-reduced.y:11.6-19: warning: useless nonterminal: non_productive
+not-reduced.y:11.6-57: warning: useless rule: exp: non_productive
+not-reduced.y:14.16-56: warning: useless rule: not_reachable: useful
+not-reduced.y:17.17-18.63: warning: useless rule: non_productive: non_productive useless_token
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:248: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "reduce.at:260: sed -n '/^Grammar/q;/^\$/!p' not-reduced.output"
+echo reduce.at:260 >$at_check_line_file
+( $at_traceon; sed -n '/^Grammar/q;/^$/!p' not-reduced.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Useless nonterminals
+ not_reachable
+ non_productive
+Terminals which are not used
+ useless_token
+Useless rules
+ 2 exp: non_productive
+ 3 not_reachable: useful
+ 4 non_productive: non_productive useless_token
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:260: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# The reduced grammar.
+# --------------------
+cat >reduced.y <<'_ATEOF'
+/* A useless token. */
+%token useless_token
+/* A useful one. */
+%token useful
+%verbose
+%output="reduced.c"
+
+%%
+
+exp: useful { /* A useful action. */ }
+// | non_productive { /* A non productive action. */ } */
+ ;
+
+//not_reachable: useful { /* A not reachable action. */ }
+// ;
+
+//non_productive: non_productive useless_token
+// { /* Another non productive action. */ }
+// ;
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "reduce.at:287: bison reduced.y"
+echo reduce.at:287 >$at_check_line_file
+( $at_traceon; bison reduced.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:287: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Comparing the parsers.
+cp reduced.c expout
+$at_traceoff
+echo "reduce.at:291: sed 's/not-reduced/reduced/g' not-reduced.c"
+echo reduce.at:291 >$at_check_line_file
+( $at_traceon; sed 's/not-reduced/reduced/g' not-reduced.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:291: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 39 ) # 39. reduce.at:301: Underivable Rules
+ at_setup_line='reduce.at:301'
+ at_desc='Underivable Rules'
+ $at_quiet $ECHO_N " 39: Underivable Rules $ECHO_C"
+ at_xfail=no
+ (
+ echo "39. reduce.at:301: testing ..."
+ $at_traceon
+
+
+
+
+cat >input.y <<'_ATEOF'
+%verbose
+%output="input.c"
+%token useful
+%%
+exp: useful | underivable;
+underivable: indirection;
+indirection: underivable;
+_ATEOF
+
+
+$at_traceoff
+echo "reduce.at:322: bison input.y"
+echo reduce.at:322 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: warning: 2 useless nonterminals and 3 useless rules
+input.y:5.15-25: warning: useless nonterminal: underivable
+input.y:6.14-24: warning: useless nonterminal: indirection
+input.y:5.15-25: warning: useless rule: exp: underivable
+input.y:6.14-24: warning: useless rule: underivable: indirection
+input.y:7.14-24: warning: useless rule: indirection: underivable
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:322: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "reduce.at:332: sed -n '/^Grammar/q;/^\$/!p' input.output"
+echo reduce.at:332 >$at_check_line_file
+( $at_traceon; sed -n '/^Grammar/q;/^$/!p' input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Useless nonterminals
+ underivable
+ indirection
+Useless rules
+ 2 exp: underivable
+ 3 underivable: indirection
+ 4 indirection: underivable
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "reduce.at:332: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 40 ) # 40. reduce.at:342: Empty Language
+ at_setup_line='reduce.at:342'
+ at_desc='Empty Language'
+ $at_quiet $ECHO_N " 40: Empty Language $ECHO_C"
+ at_xfail=no
+ (
+ echo "40. reduce.at:342: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%output="input.c"
+%%
+exp: exp;
+_ATEOF
+
+
+$at_traceoff
+echo "reduce.at:353: bison input.y"
+echo reduce.at:353 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: warning: 2 useless nonterminals and 2 useless rules
+input.y:3.1-3: fatal error: start symbol exp does not derive any sentence
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "reduce.at:353: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-5 ) # Banner 5. synclines.at:19
+ cat <<\_ATEOF
+
+User Actions.
+
+_ATEOF
+ ;;
+
+ 41 ) # 41. synclines.at:95: Prologue synch line
+ at_setup_line='synclines.at:95'
+ at_desc='Prologue synch line'
+ $at_quiet $ECHO_N " 41: Prologue synch line $ECHO_C"
+ at_xfail=no
+ (
+ echo "41. synclines.at:95: testing ..."
+ $at_traceon
+
+
+# It seems impossible to find a generic scheme to check the location
+# of an error. Even requiring GCC is not sufficient, since for instance
+# the version modified by Apple:
+#
+# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
+# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
+# | 19991024 (release) configure:2124: $? = 0
+#
+# instead of:
+#
+# | input.y:2: #error "2"
+#
+# it reports:
+#
+# | input.y:2: "2"
+# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
+
+cat >syncline.c <<'_ATEOF'
+#error "1"
+_ATEOF
+
+
+$at_traceoff
+echo "synclines.at:95: \$CC \$CFLAGS \$CPPFLAGS -c syncline.c"
+echo synclines.at:95 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c syncline.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:95: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:95 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:95: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:95: test \"\`cat stdout\`\" = 'syncline.c:1: #error \"1\"' || exit 77"
+echo synclines.at:95 >$at_check_line_file
+( $at_traceon; test "`cat stdout`" = 'syncline.c:1: #error "1"' || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:95: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+#error "2"
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp: '0';
+_ATEOF
+
+$at_traceoff
+echo "synclines.at:95: bison -o input.c input.y"
+echo synclines.at:95 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:95: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "synclines.at:95: \$CC \$CFLAGS \$CPPFLAGS -c input.c"
+echo synclines.at:95 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:95: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:95 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:95: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:95: cat stdout"
+echo synclines.at:95 >$at_check_line_file
+( $at_traceon; cat stdout ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "input.y:2: #error \"2\"
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:95: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 42 ) # 42. synclines.at:115: %union synch line
+ at_setup_line='synclines.at:115'
+ at_desc='%union synch line'
+ $at_quiet $ECHO_N " 42: %union synch line $ECHO_C"
+ at_xfail=no
+ (
+ echo "42. synclines.at:115: testing ..."
+ $at_traceon
+
+
+# It seems impossible to find a generic scheme to check the location
+# of an error. Even requiring GCC is not sufficient, since for instance
+# the version modified by Apple:
+#
+# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
+# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
+# | 19991024 (release) configure:2124: $? = 0
+#
+# instead of:
+#
+# | input.y:2: #error "2"
+#
+# it reports:
+#
+# | input.y:2: "2"
+# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
+
+cat >syncline.c <<'_ATEOF'
+#error "1"
+_ATEOF
+
+
+$at_traceoff
+echo "synclines.at:115: \$CC \$CFLAGS \$CPPFLAGS -c syncline.c"
+echo synclines.at:115 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c syncline.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:115: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:115 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:115: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:115: test \"\`cat stdout\`\" = 'syncline.c:1: #error \"1\"' || exit 77"
+echo synclines.at:115 >$at_check_line_file
+( $at_traceon; test "`cat stdout`" = 'syncline.c:1: #error "1"' || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:115: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%union {
+#error "2"
+ char dummy;
+}
+%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp: '0';
+_ATEOF
+
+$at_traceoff
+echo "synclines.at:115: bison -o input.c input.y"
+echo synclines.at:115 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:115: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "synclines.at:115: \$CC \$CFLAGS \$CPPFLAGS -c input.c"
+echo synclines.at:115 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:115: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:115 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:115: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:115: cat stdout"
+echo synclines.at:115 >$at_check_line_file
+( $at_traceon; cat stdout ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "input.y:2: #error \"2\"
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:115: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 43 ) # 43. synclines.at:138: Postprologue synch line
+ at_setup_line='synclines.at:138'
+ at_desc='Postprologue synch line'
+ $at_quiet $ECHO_N " 43: Postprologue synch line $ECHO_C"
+ at_xfail=no
+ (
+ echo "43. synclines.at:138: testing ..."
+ $at_traceon
+
+
+# It seems impossible to find a generic scheme to check the location
+# of an error. Even requiring GCC is not sufficient, since for instance
+# the version modified by Apple:
+#
+# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
+# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
+# | 19991024 (release) configure:2124: $? = 0
+#
+# instead of:
+#
+# | input.y:2: #error "2"
+#
+# it reports:
+#
+# | input.y:2: "2"
+# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
+
+cat >syncline.c <<'_ATEOF'
+#error "1"
+_ATEOF
+
+
+$at_traceoff
+echo "synclines.at:138: \$CC \$CFLAGS \$CPPFLAGS -c syncline.c"
+echo synclines.at:138 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c syncline.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:138: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:138 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:138: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:138: test \"\`cat stdout\`\" = 'syncline.c:1: #error \"1\"' || exit 77"
+echo synclines.at:138 >$at_check_line_file
+( $at_traceon; test "`cat stdout`" = 'syncline.c:1: #error "1"' || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:138: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%union
+{
+ int ival;
+}
+%{
+#error "10"
+%}
+%%
+exp: '0';
+_ATEOF
+
+$at_traceoff
+echo "synclines.at:138: bison -o input.c input.y"
+echo synclines.at:138 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:138: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "synclines.at:138: \$CC \$CFLAGS \$CPPFLAGS -c input.c"
+echo synclines.at:138 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:138: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:138 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:138: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:138: cat stdout"
+echo synclines.at:138 >$at_check_line_file
+( $at_traceon; cat stdout ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "input.y:10: #error \"10\"
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:138: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 44 ) # 44. synclines.at:157: Action synch line
+ at_setup_line='synclines.at:157'
+ at_desc='Action synch line'
+ $at_quiet $ECHO_N " 44: Action synch line $ECHO_C"
+ at_xfail=no
+ (
+ echo "44. synclines.at:157: testing ..."
+ $at_traceon
+
+
+# It seems impossible to find a generic scheme to check the location
+# of an error. Even requiring GCC is not sufficient, since for instance
+# the version modified by Apple:
+#
+# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
+# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
+# | 19991024 (release) configure:2124: $? = 0
+#
+# instead of:
+#
+# | input.y:2: #error "2"
+#
+# it reports:
+#
+# | input.y:2: "2"
+# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
+
+cat >syncline.c <<'_ATEOF'
+#error "1"
+_ATEOF
+
+
+$at_traceoff
+echo "synclines.at:157: \$CC \$CFLAGS \$CPPFLAGS -c syncline.c"
+echo synclines.at:157 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c syncline.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:157: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:157 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:157: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:157: test \"\`cat stdout\`\" = 'syncline.c:1: #error \"1\"' || exit 77"
+echo synclines.at:157 >$at_check_line_file
+( $at_traceon; test "`cat stdout`" = 'syncline.c:1: #error "1"' || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:157: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp:
+{
+#error "8"
+};
+_ATEOF
+
+$at_traceoff
+echo "synclines.at:157: bison -o input.c input.y"
+echo synclines.at:157 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:157: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "synclines.at:157: \$CC \$CFLAGS \$CPPFLAGS -c input.c"
+echo synclines.at:157 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:157: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:157 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:157: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:157: cat stdout"
+echo synclines.at:157 >$at_check_line_file
+( $at_traceon; cat stdout ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "input.y:8: #error \"8\"
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:157: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 45 ) # 45. synclines.at:175: Epilogue synch line
+ at_setup_line='synclines.at:175'
+ at_desc='Epilogue synch line'
+ $at_quiet $ECHO_N " 45: Epilogue synch line $ECHO_C"
+ at_xfail=no
+ (
+ echo "45. synclines.at:175: testing ..."
+ $at_traceon
+
+
+# It seems impossible to find a generic scheme to check the location
+# of an error. Even requiring GCC is not sufficient, since for instance
+# the version modified by Apple:
+#
+# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
+# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
+# | 19991024 (release) configure:2124: $? = 0
+#
+# instead of:
+#
+# | input.y:2: #error "2"
+#
+# it reports:
+#
+# | input.y:2: "2"
+# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
+
+cat >syncline.c <<'_ATEOF'
+#error "1"
+_ATEOF
+
+
+$at_traceoff
+echo "synclines.at:175: \$CC \$CFLAGS \$CPPFLAGS -c syncline.c"
+echo synclines.at:175 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c syncline.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:175: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:175 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:175: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:175: test \"\`cat stdout\`\" = 'syncline.c:1: #error \"1\"' || exit 77"
+echo synclines.at:175 >$at_check_line_file
+( $at_traceon; test "`cat stdout`" = 'syncline.c:1: #error "1"' || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:175: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp: '0';
+%%
+#error "8"
+_ATEOF
+
+$at_traceoff
+echo "synclines.at:175: bison -o input.c input.y"
+echo synclines.at:175 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:175: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "synclines.at:175: \$CC \$CFLAGS \$CPPFLAGS -c input.c"
+echo synclines.at:175 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ *);;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# In case GCC displays column information, strip it down.
+#
+# input.y:4:2: #error "4" or
+# input.y:4.2: #error "4" or
+# input.y:4:2: error: #error "4"
+# =>
+# input.y:4: #error "4"
+#
+$at_traceoff
+echo "synclines.at:175: sed -e 's/^\\([^:]*:[^:.]*\\)[.:][^:]*:\\(.*\\)\$/\\1:\\2/' -e 's/^\\([^:]*:[^:]*:\\)[^#]*\\( #error\\)/\\1\\2/' stderr"
+echo synclines.at:175 >$at_check_line_file
+( $at_traceon; sed -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' -e 's/^\([^:]*:[^:]*:\)[^#]*\( #error\)/\1\2/' stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:175: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "synclines.at:175: cat stdout"
+echo synclines.at:175 >$at_check_line_file
+( $at_traceon; cat stdout ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "input.y:8: #error \"8\"
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "synclines.at:175: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-6 ) # Banner 6. headers.at:19
+ cat <<\_ATEOF
+
+Parser Headers.
+
+_ATEOF
+ ;;
+
+ 46 ) # 46. headers.at:27: %union and --defines
+ at_setup_line='headers.at:27'
+ at_desc='%union and --defines'
+ $at_quiet $ECHO_N " 46: %union and --defines $ECHO_C"
+ at_xfail=no
+ (
+ echo "46. headers.at:27: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%union
+{
+ int integer;
+ char *string ;
+}
+%%
+exp: {};
+_ATEOF
+
+
+$at_traceoff
+echo "headers.at:39: bison --defines input.y"
+echo headers.at:39 >$at_check_line_file
+( $at_traceon; bison --defines input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:39: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 47 ) # 47. headers.at:77: Invalid CPP guards: input/input
+ at_setup_line='headers.at:77'
+ at_desc='Invalid CPP guards: input/input'
+ $at_quiet $ECHO_N " 47: Invalid CPP guards: input/input $ECHO_C"
+ at_xfail=no
+ (
+ echo "47. headers.at:77: testing ..."
+ $at_traceon
+
+
+# Possibly create inner directories.
+dirname=`(dirname input/input) 2>/dev/null ||
+$as_expr Xinput/input : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ Xinput/input : 'X\(//\)[^/]' \| \
+ Xinput/input : 'X\(//\)$' \| \
+ Xinput/input : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo Xinput/input |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+{ if $as_mkdir_p; then
+ mkdir -p $dirname
+ else
+ as_dir=$dirname
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory $dirname" >&5
+echo "$as_me: error: cannot create directory $dirname" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+
+cat >input/input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <input/input.h>
+void yyerror (const char *);
+int yylex (void);
+%}
+%%
+dummy:;
+%%
+#include <input/input.h>
+_ATEOF
+
+
+
+$at_traceoff
+echo "headers.at:77: bison --defines=input/input.h --output=y.tab.c input/input.y"
+echo headers.at:77 >$at_check_line_file
+( $at_traceon; bison --defines=input/input.h --output=y.tab.c input/input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:77: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "headers.at:77: \$CC \$CFLAGS \$CPPFLAGS -o y.tab.o -I. -c y.tab.c"
+echo headers.at:77 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o y.tab.o -I. -c y.tab.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:77: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 48 ) # 48. headers.at:78: Invalid CPP guards: 9foo
+ at_setup_line='headers.at:78'
+ at_desc='Invalid CPP guards: 9foo'
+ $at_quiet $ECHO_N " 48: Invalid CPP guards: 9foo $ECHO_C"
+ at_xfail=no
+ (
+ echo "48. headers.at:78: testing ..."
+ $at_traceon
+
+
+# Possibly create inner directories.
+dirname=`(dirname 9foo) 2>/dev/null ||
+$as_expr X9foo : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X9foo : 'X\(//\)[^/]' \| \
+ X9foo : 'X\(//\)$' \| \
+ X9foo : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X9foo |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+{ if $as_mkdir_p; then
+ mkdir -p $dirname
+ else
+ as_dir=$dirname
+ as_dirs=
+ while test ! -d "$as_dir"; do
+ as_dirs="$as_dir $as_dirs"
+ as_dir=`(dirname "$as_dir") 2>/dev/null ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ done
+ test ! -n "$as_dirs" || mkdir $as_dirs
+ fi || { { echo "$as_me:$LINENO: error: cannot create directory $dirname" >&5
+echo "$as_me: error: cannot create directory $dirname" >&2;}
+ { (exit 1); exit 1; }; }; }
+
+
+cat >9foo.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <9foo.h>
+void yyerror (const char *);
+int yylex (void);
+%}
+%%
+dummy:;
+%%
+#include <9foo.h>
+_ATEOF
+
+
+
+$at_traceoff
+echo "headers.at:78: bison --defines=9foo.h --output=y.tab.c 9foo.y"
+echo headers.at:78 >$at_check_line_file
+( $at_traceon; bison --defines=9foo.h --output=y.tab.c 9foo.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:78: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "headers.at:78: \$CC \$CFLAGS \$CPPFLAGS -o y.tab.o -I. -c y.tab.c"
+echo headers.at:78 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o y.tab.o -I. -c y.tab.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:78: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 49 ) # 49. headers.at:87: export YYLTYPE
+ at_setup_line='headers.at:87'
+ at_desc='export YYLTYPE'
+ $at_quiet $ECHO_N " 49: export YYLTYPE $ECHO_C"
+ at_xfail=no
+ (
+ echo "49. headers.at:87: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%locations
+
+%name-prefix="my_"
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+static int
+my_lex (void)
+{
+ return EOF;
+}
+
+static void
+my_error (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+%}
+%%
+exp:;
+_ATEOF
+
+
+
+$at_traceoff
+echo "headers.at:114: bison --defines -o input.c input.y"
+echo headers.at:114 >$at_check_line_file
+( $at_traceon; bison --defines -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:114: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# YYLTYPE should be defined, and MY_LLOC declared.
+cat >caller.c <<'_ATEOF'
+#include "input.h"
+YYLTYPE *my_llocp = &my_lloc;
+
+int my_parse (void);
+
+int
+main (void)
+{
+ return my_parse ();
+}
+_ATEOF
+
+
+# Link and execute, just to make sure everything is fine (and in
+# particular, that MY_LLOC is indeed defined somewhere).
+$at_traceoff
+echo "headers.at:132: \$CC \$CFLAGS \$CPPFLAGS -o caller.o -c caller.c"
+echo headers.at:132 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o caller.o -c caller.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:132: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "headers.at:133: \$CC \$CFLAGS \$CPPFLAGS -o input.o -c input.c"
+echo headers.at:133 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o input.o -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:133: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "headers.at:134: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o caller caller.o input.o \$LIBS"
+echo headers.at:134 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o caller caller.o input.o $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:134: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "headers.at:135: \$PREPARSER ./caller"
+echo headers.at:135 >$at_check_line_file
+( $at_traceon; $PREPARSER ./caller ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "headers.at:135: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-7 ) # Banner 7. actions.at:19
+ cat <<\_ATEOF
+
+User Actions.
+
+_ATEOF
+ ;;
+
+ 50 ) # 50. actions.at:25: Mid-rule actions
+ at_setup_line='actions.at:25'
+ at_desc='Mid-rule actions'
+ $at_quiet $ECHO_N " 50: Mid-rule actions $ECHO_C"
+ at_xfail=no
+ (
+ echo "50. actions.at:25: testing ..."
+ $at_traceon
+
+
+# Bison once forgot the mid-rule actions. It was because the action
+# was attached to the host rule (the one with the mid-rule action),
+# instead of being attached to the empty rule dedicated to this
+# action.
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%error-verbose
+%debug
+%{
+# include <stdio.h>
+# include <stdlib.h>
+ static void yyerror (const char *msg);
+ static int yylex (void);
+%}
+%%
+exp: { putchar ('0'); }
+ '1' { putchar ('1'); }
+ '2' { putchar ('2'); }
+ '3' { putchar ('3'); }
+ '4' { putchar ('4'); }
+ '5' { putchar ('5'); }
+ '6' { putchar ('6'); }
+ '7' { putchar ('7'); }
+ '8' { putchar ('8'); }
+ '9' { putchar ('9'); }
+ { putchar ('\n'); }
+ ;
+%%
+static int
+yylex (void)
+{
+ static const char *input = "123456789";
+ return *input++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:75: bison -d -v -o input.c input.y"
+echo actions.at:75 >$at_check_line_file
+( $at_traceon; bison -d -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:75: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "actions.at:76: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo actions.at:76 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:76: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "actions.at:79: \$PREPARSER ./input"
+echo actions.at:79 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "0123456789
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:79: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 51 ) # 51. actions.at:91: Exotic Dollars
+ at_setup_line='actions.at:91'
+ at_desc='Exotic Dollars'
+ $at_quiet $ECHO_N " 51: Exotic Dollars $ECHO_C"
+ at_xfail=no
+ (
+ echo "51. actions.at:91: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%error-verbose
+%debug
+%{
+# include <stdio.h>
+# include <stdlib.h>
+ static void yyerror (const char *msg);
+ static int yylex (void);
+# define USE(Var)
+%}
+
+%union
+{
+ int val;
+};
+
+%type <val> a_1 a_2 a_5
+ sum_of_the_five_previous_values
+
+%%
+exp: a_1 a_2 { $<val>$ = 3; } { $<val>$ = $<val>3 + 1; } a_5
+ sum_of_the_five_previous_values
+ {
+ USE (($1, $2, $<foo>3, $<foo>4, $5));
+ printf ("%d\n", $6);
+ }
+;
+a_1: { $$ = 1; };
+a_2: { $$ = 2; };
+a_5: { $$ = 5; };
+
+sum_of_the_five_previous_values:
+ {
+ $$ = $<val>0 + $<val>-1 + $<val>-2 + $<val>-3 + $<val>-4;
+ }
+;
+
+%%
+static int
+yylex (void)
+{
+ return EOF;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:150: bison -d -v -o input.c input.y"
+echo actions.at:150 >$at_check_line_file
+( $at_traceon; bison -d -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:150: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "actions.at:151: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo actions.at:151 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:151: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "actions.at:154: \$PREPARSER ./input"
+echo actions.at:154 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "15
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:154: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 52 ) # 52. actions.at:527: Printers and Destructors :
+ at_setup_line='actions.at:527'
+ at_desc='Printers and Destructors : '
+ $at_quiet $ECHO_N " 52: Printers and Destructors : $ECHO_C"
+ at_xfail=no
+ (
+ echo "52. actions.at:527: testing ..."
+ $at_traceon
+
+
+
+# Make sure complex $n work.
+
+# Be sure to pass all the %directives to this macro to have correct
+# helping macros. So don't put any directly in the Bison file.
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
+#define RANGE(Location) (Location).first_line, (Location).last_line
+%}
+
+%error-verbose
+%debug
+%verbose
+%locations
+
+
+
+
+%{
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+
+
+
+%printer
+ {
+ fprintf (yyoutput, "%d", $$);
+ }
+ input line thing 'x' 'y'
+
+%destructor
+ { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); }
+ input
+
+%destructor
+ { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); }
+ line
+
+%destructor
+ { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); }
+ thing
+
+%destructor
+ { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'x'
+
+%destructor
+ { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'y'
+
+%%
+/*
+ This grammar is made to exercise error recovery.
+ "Lines" starting with `(' support error recovery, with
+ ')' as synchronizing token. Lines starting with 'x' can never
+ be recovered from if in error.
+*/
+
+input:
+ /* Nothing. */
+ {
+ $$ = 0;
+ printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2));
+ }
+;
+
+line:
+ thing thing thing ';'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3));
+ }
+| '(' error ')'
+ {
+ $$ = -1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3));
+ }
+;
+
+thing:
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1));
+ }
+;
+%%
+/* Alias to ARGV[1]. */
+const char *source = 0;
+
+static int
+yylex (void)
+{
+ static unsigned int counter = 0;
+
+ int c = (yylval) = counter++;
+ /* As in BASIC, line numbers go from 10 to 10. */
+ (yylloc).first_line = (yylloc).first_column = 10 * c;
+ (yylloc).last_line = (yylloc).last_column = (yylloc).first_line + 9;
+
+
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
+ else
+ printf ("sending: EOF");
+ printf (" (%d@%d-%d)\n", c, RANGE ((yylloc)));
+ return source[c];
+}
+
+static void
+yyerror (const char *msg)
+{
+ printf ("%d-%d: %s\n", RANGE (yylloc), msg);
+}
+
+int
+main (int argc, const char *argv[])
+{
+ int status;
+ yydebug = !!getenv ("YYDEBUG");
+ assert (argc == 2);
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
+ {
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
+ }
+ return status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:527: bison -o input.c input.y"
+echo actions.at:527 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:527: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "actions.at:527: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo actions.at:527 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:527: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check the location of "empty"
+# -----------------------------
+# I.e., epsilon-reductions, as in "(x)" which ends by reducing
+# an empty "line" nterm.
+# FIXME: This location is not satisfying. Depend on the lookahead?
+$at_traceoff
+echo "actions.at:527: \$PREPARSER ./input '(x)'"
+echo actions.at:527 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:527: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check locations in error recovery
+# ---------------------------------
+# '(y)' is an error, but can be recovered from. But what's the location
+# of the error itself ('y'), and of the resulting reduction ('(error)').
+$at_traceoff
+echo "actions.at:527: \$PREPARSER ./input '(y)'"
+echo actions.at:527 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(y)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'y' (1@10-19)
+10-19: syntax error, unexpected 'y', expecting 'x'
+Freeing token 'y' (1@10-19)
+sending: ')' (2@20-29)
+line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:527: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Syntax errors caught by the parser
+# ----------------------------------
+# Exercise the discarding of stack top and input until `error'
+# can be reduced.
+#
+# '(', 'x', 'x', 'x', 'x', 'x', ')',
+#
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'y'
+$at_traceoff
+echo "actions.at:527: \$PREPARSER ./input '(xxxxx)(x)(x)y'"
+echo actions.at:527 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(xxxxx)(x)(x)y' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: 'x' (2@20-29)
+thing (2@20-29): 'x' (2@20-29)
+sending: 'x' (3@30-39)
+30-39: syntax error, unexpected 'x', expecting ')'
+Freeing nterm thing (2@20-29)
+Freeing nterm thing (1@10-19)
+Freeing token 'x' (3@30-39)
+sending: 'x' (4@40-49)
+Freeing token 'x' (4@40-49)
+sending: 'x' (5@50-59)
+Freeing token 'x' (5@50-59)
+sending: ')' (6@60-69)
+line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69)
+sending: '(' (7@70-79)
+sending: 'x' (8@80-89)
+thing (8@80-89): 'x' (8@80-89)
+sending: ')' (9@90-99)
+line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99)
+sending: '(' (10@100-109)
+sending: 'x' (11@110-119)
+thing (11@110-119): 'x' (11@110-119)
+sending: ')' (12@120-129)
+line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129)
+sending: 'y' (13@130-139)
+input (0@129-129): /* Nothing */
+input (2@100-129): line (10@100-129) input (0@129-129)
+input (2@70-129): line (7@70-99) input (2@100-129)
+input (2@0-129): line (-1@0-69) input (2@70-129)
+130-139: syntax error, unexpected 'y', expecting \$end
+Freeing nterm input (2@0-129)
+Freeing token 'y' (13@130-139)
+Parsing FAILED.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "actions.at:527: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+
+$at_traceoff
+echo "actions.at:527: \$PREPARSER ./input '(x)(x)(x)(x)(x)(x)(x)'"
+echo actions.at:527 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)(x)(x)(x)(x)(x)(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: '(' (3@30-39)
+sending: 'x' (4@40-49)
+thing (4@40-49): 'x' (4@40-49)
+sending: ')' (5@50-59)
+line (3@30-59): '(' (3@30-39) thing (4@40-49) ')' (5@50-59)
+sending: '(' (6@60-69)
+sending: 'x' (7@70-79)
+thing (7@70-79): 'x' (7@70-79)
+sending: ')' (8@80-89)
+line (6@60-89): '(' (6@60-69) thing (7@70-79) ')' (8@80-89)
+sending: '(' (9@90-99)
+sending: 'x' (10@100-109)
+thing (10@100-109): 'x' (10@100-109)
+sending: ')' (11@110-119)
+line (9@90-119): '(' (9@90-99) thing (10@100-109) ')' (11@110-119)
+sending: '(' (12@120-129)
+sending: 'x' (13@130-139)
+thing (13@130-139): 'x' (13@130-139)
+sending: ')' (14@140-149)
+line (12@120-149): '(' (12@120-129) thing (13@130-139) ')' (14@140-149)
+sending: '(' (15@150-159)
+sending: 'x' (16@160-169)
+thing (16@160-169): 'x' (16@160-169)
+sending: ')' (17@170-179)
+line (15@150-179): '(' (15@150-159) thing (16@160-169) ')' (17@170-179)
+sending: '(' (18@180-189)
+sending: 'x' (19@190-199)
+thing (19@190-199): 'x' (19@190-199)
+sending: ')' (20@200-209)
+200-209: memory exhausted
+Freeing nterm thing (19@190-199)
+Freeing nterm line (15@150-179)
+Freeing nterm line (12@120-149)
+Freeing nterm line (9@90-119)
+Freeing nterm line (6@60-89)
+Freeing nterm line (3@30-59)
+Freeing nterm line (0@0-29)
+Parsing FAILED (status 2).
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 2) ;;
+ *) echo "actions.at:527: exit code was $at_status, expected 2"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 53 ) # 53. actions.at:528: Printers and Destructors with union:
+ at_setup_line='actions.at:528'
+ at_desc='Printers and Destructors with union: '
+ $at_quiet $ECHO_N " 53: Printers and Destructors with union: $ECHO_C"
+ at_xfail=no
+ (
+ echo "53. actions.at:528: testing ..."
+ $at_traceon
+
+
+
+# Make sure complex $n work.
+
+# Be sure to pass all the %directives to this macro to have correct
+# helping macros. So don't put any directly in the Bison file.
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
+#define RANGE(Location) (Location).first_line, (Location).last_line
+%}
+
+%error-verbose
+%debug
+%verbose
+%locations
+
+%union
+{
+ int ival;
+}
+
+
+%{
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+
+%type <ival> '(' 'x' 'y' ')' ';' thing line input
+
+%printer
+ {
+ fprintf (yyoutput, "%d", $$);
+ }
+ input line thing 'x' 'y'
+
+%destructor
+ { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); }
+ input
+
+%destructor
+ { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); }
+ line
+
+%destructor
+ { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); }
+ thing
+
+%destructor
+ { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'x'
+
+%destructor
+ { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'y'
+
+%%
+/*
+ This grammar is made to exercise error recovery.
+ "Lines" starting with `(' support error recovery, with
+ ')' as synchronizing token. Lines starting with 'x' can never
+ be recovered from if in error.
+*/
+
+input:
+ /* Nothing. */
+ {
+ $$ = 0;
+ printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2));
+ }
+;
+
+line:
+ thing thing thing ';'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3));
+ }
+| '(' error ')'
+ {
+ $$ = -1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3));
+ }
+;
+
+thing:
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1));
+ }
+;
+%%
+/* Alias to ARGV[1]. */
+const char *source = 0;
+
+static int
+yylex (void)
+{
+ static unsigned int counter = 0;
+
+ int c = (yylval).ival = counter++;
+ /* As in BASIC, line numbers go from 10 to 10. */
+ (yylloc).first_line = (yylloc).first_column = 10 * c;
+ (yylloc).last_line = (yylloc).last_column = (yylloc).first_line + 9;
+
+
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
+ else
+ printf ("sending: EOF");
+ printf (" (%d@%d-%d)\n", c, RANGE ((yylloc)));
+ return source[c];
+}
+
+static void
+yyerror (const char *msg)
+{
+ printf ("%d-%d: %s\n", RANGE (yylloc), msg);
+}
+
+int
+main (int argc, const char *argv[])
+{
+ int status;
+ yydebug = !!getenv ("YYDEBUG");
+ assert (argc == 2);
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
+ {
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
+ }
+ return status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:528: bison -o input.c input.y"
+echo actions.at:528 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:528: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "actions.at:528: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo actions.at:528 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:528: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check the location of "empty"
+# -----------------------------
+# I.e., epsilon-reductions, as in "(x)" which ends by reducing
+# an empty "line" nterm.
+# FIXME: This location is not satisfying. Depend on the lookahead?
+$at_traceoff
+echo "actions.at:528: \$PREPARSER ./input '(x)'"
+echo actions.at:528 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:528: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check locations in error recovery
+# ---------------------------------
+# '(y)' is an error, but can be recovered from. But what's the location
+# of the error itself ('y'), and of the resulting reduction ('(error)').
+$at_traceoff
+echo "actions.at:528: \$PREPARSER ./input '(y)'"
+echo actions.at:528 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(y)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'y' (1@10-19)
+10-19: syntax error, unexpected 'y', expecting 'x'
+Freeing token 'y' (1@10-19)
+sending: ')' (2@20-29)
+line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:528: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Syntax errors caught by the parser
+# ----------------------------------
+# Exercise the discarding of stack top and input until `error'
+# can be reduced.
+#
+# '(', 'x', 'x', 'x', 'x', 'x', ')',
+#
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'y'
+$at_traceoff
+echo "actions.at:528: \$PREPARSER ./input '(xxxxx)(x)(x)y'"
+echo actions.at:528 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(xxxxx)(x)(x)y' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: 'x' (2@20-29)
+thing (2@20-29): 'x' (2@20-29)
+sending: 'x' (3@30-39)
+30-39: syntax error, unexpected 'x', expecting ')'
+Freeing nterm thing (2@20-29)
+Freeing nterm thing (1@10-19)
+Freeing token 'x' (3@30-39)
+sending: 'x' (4@40-49)
+Freeing token 'x' (4@40-49)
+sending: 'x' (5@50-59)
+Freeing token 'x' (5@50-59)
+sending: ')' (6@60-69)
+line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69)
+sending: '(' (7@70-79)
+sending: 'x' (8@80-89)
+thing (8@80-89): 'x' (8@80-89)
+sending: ')' (9@90-99)
+line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99)
+sending: '(' (10@100-109)
+sending: 'x' (11@110-119)
+thing (11@110-119): 'x' (11@110-119)
+sending: ')' (12@120-129)
+line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129)
+sending: 'y' (13@130-139)
+input (0@129-129): /* Nothing */
+input (2@100-129): line (10@100-129) input (0@129-129)
+input (2@70-129): line (7@70-99) input (2@100-129)
+input (2@0-129): line (-1@0-69) input (2@70-129)
+130-139: syntax error, unexpected 'y', expecting \$end
+Freeing nterm input (2@0-129)
+Freeing token 'y' (13@130-139)
+Parsing FAILED.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "actions.at:528: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+
+$at_traceoff
+echo "actions.at:528: \$PREPARSER ./input '(x)(x)(x)(x)(x)(x)(x)'"
+echo actions.at:528 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)(x)(x)(x)(x)(x)(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: '(' (3@30-39)
+sending: 'x' (4@40-49)
+thing (4@40-49): 'x' (4@40-49)
+sending: ')' (5@50-59)
+line (3@30-59): '(' (3@30-39) thing (4@40-49) ')' (5@50-59)
+sending: '(' (6@60-69)
+sending: 'x' (7@70-79)
+thing (7@70-79): 'x' (7@70-79)
+sending: ')' (8@80-89)
+line (6@60-89): '(' (6@60-69) thing (7@70-79) ')' (8@80-89)
+sending: '(' (9@90-99)
+sending: 'x' (10@100-109)
+thing (10@100-109): 'x' (10@100-109)
+sending: ')' (11@110-119)
+line (9@90-119): '(' (9@90-99) thing (10@100-109) ')' (11@110-119)
+sending: '(' (12@120-129)
+sending: 'x' (13@130-139)
+thing (13@130-139): 'x' (13@130-139)
+sending: ')' (14@140-149)
+line (12@120-149): '(' (12@120-129) thing (13@130-139) ')' (14@140-149)
+sending: '(' (15@150-159)
+sending: 'x' (16@160-169)
+thing (16@160-169): 'x' (16@160-169)
+sending: ')' (17@170-179)
+line (15@150-179): '(' (15@150-159) thing (16@160-169) ')' (17@170-179)
+sending: '(' (18@180-189)
+sending: 'x' (19@190-199)
+thing (19@190-199): 'x' (19@190-199)
+sending: ')' (20@200-209)
+200-209: memory exhausted
+Freeing nterm thing (19@190-199)
+Freeing nterm line (15@150-179)
+Freeing nterm line (12@120-149)
+Freeing nterm line (9@90-119)
+Freeing nterm line (6@60-89)
+Freeing nterm line (3@30-59)
+Freeing nterm line (0@0-29)
+Parsing FAILED (status 2).
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 2) ;;
+ *) echo "actions.at:528: exit code was $at_status, expected 2"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 54 ) # 54. actions.at:533: Printers and Destructors : %defines %skeleton "lalr1.cc"
+ at_setup_line='actions.at:533'
+ at_desc='Printers and Destructors : %defines %skeleton "lalr1.cc"'
+ $at_quiet $ECHO_N " 54: Printers and Destructors : %defines %skeleton "lalr1.cc"$ECHO_C"
+ at_xfail=no
+ (
+ echo "54. actions.at:533: testing ..."
+ $at_traceon
+
+
+
+# Make sure complex $n work.
+
+# Be sure to pass all the %directives to this macro to have correct
+# helping macros. So don't put any directly in the Bison file.
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
+#define RANGE(Location) (Location).begin.line, (Location).end.line
+%}
+
+%error-verbose
+%debug
+%verbose
+%locations
+%defines %skeleton "lalr1.cc"
+
+%define "global_tokens_and_yystype"
+
+%{
+typedef yy::location YYLTYPE;
+ #define YYSTYPE int
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+
+%}
+
+
+
+%printer
+ {
+ debug_stream () << $$;;
+ }
+ input line thing 'x' 'y'
+
+%destructor
+ { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); }
+ input
+
+%destructor
+ { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); }
+ line
+
+%destructor
+ { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); }
+ thing
+
+%destructor
+ { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'x'
+
+%destructor
+ { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'y'
+
+%%
+/*
+ This grammar is made to exercise error recovery.
+ "Lines" starting with `(' support error recovery, with
+ ')' as synchronizing token. Lines starting with 'x' can never
+ be recovered from if in error.
+*/
+
+input:
+ /* Nothing. */
+ {
+ $$ = 0;
+ printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2));
+ }
+;
+
+line:
+ thing thing thing ';'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3));
+ }
+| '(' error ')'
+ {
+ $$ = -1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3));
+ }
+;
+
+thing:
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1));
+ }
+;
+%%
+/* Alias to ARGV[1]. */
+const char *source = 0;
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static unsigned int counter = 0;
+
+ int c = (*lvalp) = counter++;
+ /* As in BASIC, line numbers go from 10 to 10. */
+ (*llocp).begin.line = (*llocp).begin.column = 10 * c;
+ (*llocp).end.line = (*llocp).end.column = (*llocp).begin.line + 9;
+
+
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
+ else
+ printf ("sending: EOF");
+ printf (" (%d@%d-%d)\n", c, RANGE ((*llocp)));
+ return source[c];
+}
+
+/* A C++ error reporting function. */
+void
+yy::parser::error (const location& l, const std::string& m)
+{
+ printf ("%d-%d: %s\n", RANGE (l), m.c_str());
+}
+
+static bool yydebug;
+int
+yyparse ()
+{
+ yy::parser parser;
+ parser.set_debug_level (yydebug);
+ return parser.parse ();
+}
+
+
+int
+main (int argc, const char *argv[])
+{
+ int status;
+ yydebug = !!getenv ("YYDEBUG");
+ assert (argc == 2);
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
+ {
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
+ }
+ return status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:533: bison -o input.cc input.y"
+echo actions.at:533 >$at_check_line_file
+( $at_traceon; bison -o input.cc input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:533: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "actions.at:533: \$BISON_CXX_WORKS"
+echo actions.at:533 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:533: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "actions.at:533: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o input input.cc \$LIBS"
+echo actions.at:533 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o input input.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:533: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check the location of "empty"
+# -----------------------------
+# I.e., epsilon-reductions, as in "(x)" which ends by reducing
+# an empty "line" nterm.
+# FIXME: This location is not satisfying. Depend on the lookahead?
+$at_traceoff
+echo "actions.at:533: \$PREPARSER ./input '(x)'"
+echo actions.at:533 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:533: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check locations in error recovery
+# ---------------------------------
+# '(y)' is an error, but can be recovered from. But what's the location
+# of the error itself ('y'), and of the resulting reduction ('(error)').
+$at_traceoff
+echo "actions.at:533: \$PREPARSER ./input '(y)'"
+echo actions.at:533 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(y)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'y' (1@10-19)
+10-19: syntax error, unexpected 'y', expecting 'x'
+Freeing token 'y' (1@10-19)
+sending: ')' (2@20-29)
+line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:533: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Syntax errors caught by the parser
+# ----------------------------------
+# Exercise the discarding of stack top and input until `error'
+# can be reduced.
+#
+# '(', 'x', 'x', 'x', 'x', 'x', ')',
+#
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'y'
+$at_traceoff
+echo "actions.at:533: \$PREPARSER ./input '(xxxxx)(x)(x)y'"
+echo actions.at:533 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(xxxxx)(x)(x)y' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: 'x' (2@20-29)
+thing (2@20-29): 'x' (2@20-29)
+sending: 'x' (3@30-39)
+30-39: syntax error, unexpected 'x', expecting ')'
+Freeing nterm thing (2@20-29)
+Freeing nterm thing (1@10-19)
+Freeing token 'x' (3@30-39)
+sending: 'x' (4@40-49)
+Freeing token 'x' (4@40-49)
+sending: 'x' (5@50-59)
+Freeing token 'x' (5@50-59)
+sending: ')' (6@60-69)
+line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69)
+sending: '(' (7@70-79)
+sending: 'x' (8@80-89)
+thing (8@80-89): 'x' (8@80-89)
+sending: ')' (9@90-99)
+line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99)
+sending: '(' (10@100-109)
+sending: 'x' (11@110-119)
+thing (11@110-119): 'x' (11@110-119)
+sending: ')' (12@120-129)
+line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129)
+sending: 'y' (13@130-139)
+input (0@129-129): /* Nothing */
+input (2@100-129): line (10@100-129) input (0@129-129)
+input (2@70-129): line (7@70-99) input (2@100-129)
+input (2@0-129): line (-1@0-69) input (2@70-129)
+130-139: syntax error, unexpected 'y', expecting \$end
+Freeing nterm input (2@0-129)
+Freeing token 'y' (13@130-139)
+Parsing FAILED.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "actions.at:533: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 55 ) # 55. actions.at:534: Printers and Destructors with union: %defines %skeleton "lalr1.cc"
+ at_setup_line='actions.at:534'
+ at_desc='Printers and Destructors with union: %defines %skeleton "lalr1.cc"'
+ $at_quiet $ECHO_N " 55: Printers and Destructors with union: %defines %skeleton "lalr1.cc"$ECHO_C"
+ at_xfail=no
+ (
+ echo "55. actions.at:534: testing ..."
+ $at_traceon
+
+
+
+# Make sure complex $n work.
+
+# Be sure to pass all the %directives to this macro to have correct
+# helping macros. So don't put any directly in the Bison file.
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
+#define RANGE(Location) (Location).begin.line, (Location).end.line
+%}
+
+%error-verbose
+%debug
+%verbose
+%locations
+%defines %skeleton "lalr1.cc"
+%union
+{
+ int ival;
+}
+%define "global_tokens_and_yystype"
+
+%{
+typedef yy::location YYLTYPE;
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+
+%}
+
+%type <ival> '(' 'x' 'y' ')' ';' thing line input
+
+%printer
+ {
+ debug_stream () << $$;;
+ }
+ input line thing 'x' 'y'
+
+%destructor
+ { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); }
+ input
+
+%destructor
+ { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); }
+ line
+
+%destructor
+ { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); }
+ thing
+
+%destructor
+ { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'x'
+
+%destructor
+ { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'y'
+
+%%
+/*
+ This grammar is made to exercise error recovery.
+ "Lines" starting with `(' support error recovery, with
+ ')' as synchronizing token. Lines starting with 'x' can never
+ be recovered from if in error.
+*/
+
+input:
+ /* Nothing. */
+ {
+ $$ = 0;
+ printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2));
+ }
+;
+
+line:
+ thing thing thing ';'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3));
+ }
+| '(' error ')'
+ {
+ $$ = -1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3));
+ }
+;
+
+thing:
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1));
+ }
+;
+%%
+/* Alias to ARGV[1]. */
+const char *source = 0;
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static unsigned int counter = 0;
+
+ int c = (*lvalp).ival = counter++;
+ /* As in BASIC, line numbers go from 10 to 10. */
+ (*llocp).begin.line = (*llocp).begin.column = 10 * c;
+ (*llocp).end.line = (*llocp).end.column = (*llocp).begin.line + 9;
+
+
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
+ else
+ printf ("sending: EOF");
+ printf (" (%d@%d-%d)\n", c, RANGE ((*llocp)));
+ return source[c];
+}
+
+/* A C++ error reporting function. */
+void
+yy::parser::error (const location& l, const std::string& m)
+{
+ printf ("%d-%d: %s\n", RANGE (l), m.c_str());
+}
+
+static bool yydebug;
+int
+yyparse ()
+{
+ yy::parser parser;
+ parser.set_debug_level (yydebug);
+ return parser.parse ();
+}
+
+
+int
+main (int argc, const char *argv[])
+{
+ int status;
+ yydebug = !!getenv ("YYDEBUG");
+ assert (argc == 2);
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
+ {
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
+ }
+ return status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:534: bison -o input.cc input.y"
+echo actions.at:534 >$at_check_line_file
+( $at_traceon; bison -o input.cc input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:534: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "actions.at:534: \$BISON_CXX_WORKS"
+echo actions.at:534 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:534: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "actions.at:534: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o input input.cc \$LIBS"
+echo actions.at:534 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o input input.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:534: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check the location of "empty"
+# -----------------------------
+# I.e., epsilon-reductions, as in "(x)" which ends by reducing
+# an empty "line" nterm.
+# FIXME: This location is not satisfying. Depend on the lookahead?
+$at_traceoff
+echo "actions.at:534: \$PREPARSER ./input '(x)'"
+echo actions.at:534 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:534: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check locations in error recovery
+# ---------------------------------
+# '(y)' is an error, but can be recovered from. But what's the location
+# of the error itself ('y'), and of the resulting reduction ('(error)').
+$at_traceoff
+echo "actions.at:534: \$PREPARSER ./input '(y)'"
+echo actions.at:534 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(y)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'y' (1@10-19)
+10-19: syntax error, unexpected 'y', expecting 'x'
+Freeing token 'y' (1@10-19)
+sending: ')' (2@20-29)
+line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:534: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Syntax errors caught by the parser
+# ----------------------------------
+# Exercise the discarding of stack top and input until `error'
+# can be reduced.
+#
+# '(', 'x', 'x', 'x', 'x', 'x', ')',
+#
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'y'
+$at_traceoff
+echo "actions.at:534: \$PREPARSER ./input '(xxxxx)(x)(x)y'"
+echo actions.at:534 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(xxxxx)(x)(x)y' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: 'x' (2@20-29)
+thing (2@20-29): 'x' (2@20-29)
+sending: 'x' (3@30-39)
+30-39: syntax error, unexpected 'x', expecting ')'
+Freeing nterm thing (2@20-29)
+Freeing nterm thing (1@10-19)
+Freeing token 'x' (3@30-39)
+sending: 'x' (4@40-49)
+Freeing token 'x' (4@40-49)
+sending: 'x' (5@50-59)
+Freeing token 'x' (5@50-59)
+sending: ')' (6@60-69)
+line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69)
+sending: '(' (7@70-79)
+sending: 'x' (8@80-89)
+thing (8@80-89): 'x' (8@80-89)
+sending: ')' (9@90-99)
+line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99)
+sending: '(' (10@100-109)
+sending: 'x' (11@110-119)
+thing (11@110-119): 'x' (11@110-119)
+sending: ')' (12@120-129)
+line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129)
+sending: 'y' (13@130-139)
+input (0@129-129): /* Nothing */
+input (2@100-129): line (10@100-129) input (0@129-129)
+input (2@70-129): line (7@70-99) input (2@100-129)
+input (2@0-129): line (-1@0-69) input (2@70-129)
+130-139: syntax error, unexpected 'y', expecting \$end
+Freeing nterm input (2@0-129)
+Freeing token 'y' (13@130-139)
+Parsing FAILED.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "actions.at:534: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 56 ) # 56. actions.at:536: Printers and Destructors : %glr-parser
+ at_setup_line='actions.at:536'
+ at_desc='Printers and Destructors : %glr-parser'
+ $at_quiet $ECHO_N " 56: Printers and Destructors : %glr-parser $ECHO_C"
+ at_xfail=no
+ (
+ echo "56. actions.at:536: testing ..."
+ $at_traceon
+
+
+
+# Make sure complex $n work.
+
+# Be sure to pass all the %directives to this macro to have correct
+# helping macros. So don't put any directly in the Bison file.
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
+#define RANGE(Location) (Location).first_line, (Location).last_line
+%}
+
+%error-verbose
+%debug
+%verbose
+%locations
+%glr-parser
+
+
+
+%{
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+
+
+
+%printer
+ {
+ fprintf (yyoutput, "%d", $$);
+ }
+ input line thing 'x' 'y'
+
+%destructor
+ { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); }
+ input
+
+%destructor
+ { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); }
+ line
+
+%destructor
+ { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); }
+ thing
+
+%destructor
+ { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'x'
+
+%destructor
+ { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'y'
+
+%%
+/*
+ This grammar is made to exercise error recovery.
+ "Lines" starting with `(' support error recovery, with
+ ')' as synchronizing token. Lines starting with 'x' can never
+ be recovered from if in error.
+*/
+
+input:
+ /* Nothing. */
+ {
+ $$ = 0;
+ printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2));
+ }
+;
+
+line:
+ thing thing thing ';'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3));
+ }
+| '(' error ')'
+ {
+ $$ = -1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3));
+ }
+;
+
+thing:
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1));
+ }
+;
+%%
+/* Alias to ARGV[1]. */
+const char *source = 0;
+
+static int
+yylex (void)
+{
+ static unsigned int counter = 0;
+
+ int c = (yylval) = counter++;
+ /* As in BASIC, line numbers go from 10 to 10. */
+ (yylloc).first_line = (yylloc).first_column = 10 * c;
+ (yylloc).last_line = (yylloc).last_column = (yylloc).first_line + 9;
+
+
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
+ else
+ printf ("sending: EOF");
+ printf (" (%d@%d-%d)\n", c, RANGE ((yylloc)));
+ return source[c];
+}
+
+static void
+yyerror (const char *msg)
+{
+ printf ("%d-%d: %s\n", RANGE (yylloc), msg);
+}
+
+int
+main (int argc, const char *argv[])
+{
+ int status;
+ yydebug = !!getenv ("YYDEBUG");
+ assert (argc == 2);
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
+ {
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
+ }
+ return status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:536: bison -o input.c input.y"
+echo actions.at:536 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:536: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "actions.at:536: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo actions.at:536 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:536: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check the location of "empty"
+# -----------------------------
+# I.e., epsilon-reductions, as in "(x)" which ends by reducing
+# an empty "line" nterm.
+# FIXME: This location is not satisfying. Depend on the lookahead?
+$at_traceoff
+echo "actions.at:536: \$PREPARSER ./input '(x)'"
+echo actions.at:536 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:536: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check locations in error recovery
+# ---------------------------------
+# '(y)' is an error, but can be recovered from. But what's the location
+# of the error itself ('y'), and of the resulting reduction ('(error)').
+$at_traceoff
+echo "actions.at:536: \$PREPARSER ./input '(y)'"
+echo actions.at:536 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(y)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'y' (1@10-19)
+10-19: syntax error, unexpected 'y', expecting 'x'
+Freeing token 'y' (1@10-19)
+sending: ')' (2@20-29)
+line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:536: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Syntax errors caught by the parser
+# ----------------------------------
+# Exercise the discarding of stack top and input until `error'
+# can be reduced.
+#
+# '(', 'x', 'x', 'x', 'x', 'x', ')',
+#
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'y'
+$at_traceoff
+echo "actions.at:536: \$PREPARSER ./input '(xxxxx)(x)(x)y'"
+echo actions.at:536 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(xxxxx)(x)(x)y' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: 'x' (2@20-29)
+thing (2@20-29): 'x' (2@20-29)
+sending: 'x' (3@30-39)
+30-39: syntax error, unexpected 'x', expecting ')'
+Freeing nterm thing (2@20-29)
+Freeing nterm thing (1@10-19)
+Freeing token 'x' (3@30-39)
+sending: 'x' (4@40-49)
+Freeing token 'x' (4@40-49)
+sending: 'x' (5@50-59)
+Freeing token 'x' (5@50-59)
+sending: ')' (6@60-69)
+line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69)
+sending: '(' (7@70-79)
+sending: 'x' (8@80-89)
+thing (8@80-89): 'x' (8@80-89)
+sending: ')' (9@90-99)
+line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99)
+sending: '(' (10@100-109)
+sending: 'x' (11@110-119)
+thing (11@110-119): 'x' (11@110-119)
+sending: ')' (12@120-129)
+line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129)
+sending: 'y' (13@130-139)
+input (0@129-129): /* Nothing */
+input (2@100-129): line (10@100-129) input (0@129-129)
+input (2@70-129): line (7@70-99) input (2@100-129)
+input (2@0-129): line (-1@0-69) input (2@70-129)
+130-139: syntax error, unexpected 'y', expecting \$end
+Freeing nterm input (2@0-129)
+Freeing token 'y' (13@130-139)
+Parsing FAILED.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "actions.at:536: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 57 ) # 57. actions.at:537: Printers and Destructors with union: %glr-parser
+ at_setup_line='actions.at:537'
+ at_desc='Printers and Destructors with union: %glr-parser'
+ $at_quiet $ECHO_N " 57: Printers and Destructors with union: %glr-parser$ECHO_C"
+ at_xfail=no
+ (
+ echo "57. actions.at:537: testing ..."
+ $at_traceon
+
+
+
+# Make sure complex $n work.
+
+# Be sure to pass all the %directives to this macro to have correct
+# helping macros. So don't put any directly in the Bison file.
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#define YYINITDEPTH 10
+#define YYMAXDEPTH 10
+#define RANGE(Location) (Location).first_line, (Location).last_line
+%}
+
+%error-verbose
+%debug
+%verbose
+%locations
+%glr-parser
+%union
+{
+ int ival;
+}
+
+
+%{
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+
+%type <ival> '(' 'x' 'y' ')' ';' thing line input
+
+%printer
+ {
+ fprintf (yyoutput, "%d", $$);
+ }
+ input line thing 'x' 'y'
+
+%destructor
+ { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); }
+ input
+
+%destructor
+ { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); }
+ line
+
+%destructor
+ { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); }
+ thing
+
+%destructor
+ { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'x'
+
+%destructor
+ { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); }
+ 'y'
+
+%%
+/*
+ This grammar is made to exercise error recovery.
+ "Lines" starting with `(' support error recovery, with
+ ')' as synchronizing token. Lines starting with 'x' can never
+ be recovered from if in error.
+*/
+
+input:
+ /* Nothing. */
+ {
+ $$ = 0;
+ printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$));
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2));
+ }
+;
+
+line:
+ thing thing thing ';'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2),
+ $3, RANGE (@3), $4, RANGE (@4));
+ }
+| '(' thing ')'
+ {
+ $$ = $1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3));
+ }
+| '(' error ')'
+ {
+ $$ = -1;
+ printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3));
+ }
+;
+
+thing:
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n",
+ $$, RANGE (@$), $1, RANGE (@1));
+ }
+;
+%%
+/* Alias to ARGV[1]. */
+const char *source = 0;
+
+static int
+yylex (void)
+{
+ static unsigned int counter = 0;
+
+ int c = (yylval).ival = counter++;
+ /* As in BASIC, line numbers go from 10 to 10. */
+ (yylloc).first_line = (yylloc).first_column = 10 * c;
+ (yylloc).last_line = (yylloc).last_column = (yylloc).first_line + 9;
+
+
+ if (source[c])
+ printf ("sending: '%c'", source[c]);
+ else
+ printf ("sending: EOF");
+ printf (" (%d@%d-%d)\n", c, RANGE ((yylloc)));
+ return source[c];
+}
+
+static void
+yyerror (const char *msg)
+{
+ printf ("%d-%d: %s\n", RANGE (yylloc), msg);
+}
+
+int
+main (int argc, const char *argv[])
+{
+ int status;
+ yydebug = !!getenv ("YYDEBUG");
+ assert (argc == 2);
+ source = argv[1];
+ status = yyparse ();
+ switch (status)
+ {
+ case 0: printf ("Successful parse.\n"); break;
+ case 1: printf ("Parsing FAILED.\n"); break;
+ default: printf ("Parsing FAILED (status %d).\n", status); break;
+ }
+ return status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "actions.at:537: bison -o input.c input.y"
+echo actions.at:537 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:537: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "actions.at:537: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo actions.at:537 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:537: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check the location of "empty"
+# -----------------------------
+# I.e., epsilon-reductions, as in "(x)" which ends by reducing
+# an empty "line" nterm.
+# FIXME: This location is not satisfying. Depend on the lookahead?
+$at_traceoff
+echo "actions.at:537: \$PREPARSER ./input '(x)'"
+echo actions.at:537 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(x)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: ')' (2@20-29)
+line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (0@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:537: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Check locations in error recovery
+# ---------------------------------
+# '(y)' is an error, but can be recovered from. But what's the location
+# of the error itself ('y'), and of the resulting reduction ('(error)').
+$at_traceoff
+echo "actions.at:537: \$PREPARSER ./input '(y)'"
+echo actions.at:537 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(y)' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'y' (1@10-19)
+10-19: syntax error, unexpected 'y', expecting 'x'
+Freeing token 'y' (1@10-19)
+sending: ')' (2@20-29)
+line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29)
+sending: EOF (3@30-39)
+input (0@29-29): /* Nothing */
+input (2@0-29): line (-1@0-29) input (0@29-29)
+Freeing nterm input (2@0-29)
+Successful parse.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "actions.at:537: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Syntax errors caught by the parser
+# ----------------------------------
+# Exercise the discarding of stack top and input until `error'
+# can be reduced.
+#
+# '(', 'x', 'x', 'x', 'x', 'x', ')',
+#
+# Load the stack and provoke an error that cannot be caught by the
+# grammar, to check that the stack is cleared. And make sure the
+# lookahead is freed.
+#
+# '(', 'x', ')',
+# '(', 'x', ')',
+# 'y'
+$at_traceoff
+echo "actions.at:537: \$PREPARSER ./input '(xxxxx)(x)(x)y'"
+echo actions.at:537 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '(xxxxx)(x)(x)y' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "sending: '(' (0@0-9)
+sending: 'x' (1@10-19)
+thing (1@10-19): 'x' (1@10-19)
+sending: 'x' (2@20-29)
+thing (2@20-29): 'x' (2@20-29)
+sending: 'x' (3@30-39)
+30-39: syntax error, unexpected 'x', expecting ')'
+Freeing nterm thing (2@20-29)
+Freeing nterm thing (1@10-19)
+Freeing token 'x' (3@30-39)
+sending: 'x' (4@40-49)
+Freeing token 'x' (4@40-49)
+sending: 'x' (5@50-59)
+Freeing token 'x' (5@50-59)
+sending: ')' (6@60-69)
+line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69)
+sending: '(' (7@70-79)
+sending: 'x' (8@80-89)
+thing (8@80-89): 'x' (8@80-89)
+sending: ')' (9@90-99)
+line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99)
+sending: '(' (10@100-109)
+sending: 'x' (11@110-119)
+thing (11@110-119): 'x' (11@110-119)
+sending: ')' (12@120-129)
+line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129)
+sending: 'y' (13@130-139)
+input (0@129-129): /* Nothing */
+input (2@100-129): line (10@100-129) input (0@129-129)
+input (2@70-129): line (7@70-99) input (2@100-129)
+input (2@0-129): line (-1@0-69) input (2@70-129)
+130-139: syntax error, unexpected 'y', expecting \$end
+Freeing nterm input (2@0-129)
+Freeing token 'y' (13@130-139)
+Parsing FAILED.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "actions.at:537: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check destruction upon stack overflow
+# -------------------------------------
+# Upon stack overflow, all symbols on the stack should be destroyed.
+# Only check for yacc.c.
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-8 ) # Banner 8. conflicts.at:20
+ cat <<\_ATEOF
+
+Conflicts.
+
+_ATEOF
+ ;;
+
+ 58 ) # 58. conflicts.at:32: S/R in initial
+ at_setup_line='conflicts.at:32'
+ at_desc='S/R in initial'
+ $at_quiet $ECHO_N " 58: S/R in initial $ECHO_C"
+ at_xfail=no
+ (
+ echo "58. conflicts.at:32: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%expect 1
+%%
+exp: e 'e';
+e: 'e' | /* Nothing. */;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:43: bison -o input.c input.y"
+echo conflicts.at:43 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:4.9: warning: rule never reduced because of conflicts: e: /* empty */
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:43: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 59 ) # 59. conflicts.at:52: %nonassoc and eof
+ at_setup_line='conflicts.at:52'
+ at_desc='%nonassoc and eof'
+ $at_quiet $ECHO_N " 59: %nonassoc and eof $ECHO_C"
+ at_xfail=no
+ (
+ echo "59. conflicts.at:52: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+#define YYERROR_VERBOSE 1
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+/* The current argument. */
+static const char *input = NULL;
+
+static int
+yylex (void)
+{
+ /* No token stands for end of file. */
+ if (input && *input)
+ return *input++;
+ else
+ return 0;
+}
+
+%}
+
+%nonassoc '<' '>'
+
+%%
+expr: expr '<' expr
+ | expr '>' expr
+ | '0'
+ ;
+%%
+int
+main (int argc, const char *argv[])
+{
+ if (argc > 1)
+ input = argv[1];
+ return yyparse ();
+}
+_ATEOF
+
+
+
+# Specify the output files to avoid problems on different file systems.
+$at_traceoff
+echo "conflicts.at:100: bison -o input.c input.y"
+echo conflicts.at:100 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:100: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "conflicts.at:101: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo conflicts.at:101 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:101: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "conflicts.at:103: \$PREPARSER ./input '0<0'"
+echo conflicts.at:103 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '0<0' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:103: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# FIXME: This is an actual bug, but a new one, in the sense that
+# no one has ever spotted it! The messages are *wrong*: there should
+# be nothing there, it should be expected eof.
+$at_traceoff
+echo "conflicts.at:109: \$PREPARSER ./input '0<0<0'"
+echo conflicts.at:109 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '0<0<0' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected '<', expecting '<' or '>'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "conflicts.at:109: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "conflicts.at:111: \$PREPARSER ./input '0>0'"
+echo conflicts.at:111 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '0>0' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:111: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "conflicts.at:114: \$PREPARSER ./input '0>0>0'"
+echo conflicts.at:114 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '0>0>0' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected '>', expecting '<' or '>'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "conflicts.at:114: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "conflicts.at:118: \$PREPARSER ./input '0<0>0'"
+echo conflicts.at:118 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input '0<0>0' ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected '>', expecting '<' or '>'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "conflicts.at:118: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 60 ) # 60. conflicts.at:128: Unresolved SR Conflicts
+ at_setup_line='conflicts.at:128'
+ at_desc='Unresolved SR Conflicts'
+ $at_quiet $ECHO_N " 60: Unresolved SR Conflicts $ECHO_C"
+ at_xfail=no
+ (
+ echo "60. conflicts.at:128: testing ..."
+ $at_traceon
+
+
+
+
+cat >input.y <<'_ATEOF'
+%token NUM OP
+%%
+exp: exp OP exp | NUM;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:140: bison -o input.c --report=all input.y"
+echo conflicts.at:140 >$at_check_line_file
+( $at_traceon; bison -o input.c --report=all input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: conflicts: 1 shift/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:140: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check the contents of the report.
+$at_traceoff
+echo "conflicts.at:225: cat input.output"
+echo conflicts.at:225 >$at_check_line_file
+( $at_traceon; cat input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "State 5 conflicts: 1 shift/reduce
+
+
+Grammar
+
+ 0 \$accept: exp \$end
+
+ 1 exp: exp OP exp
+ 2 | NUM
+
+
+Terminals, with rules where they appear
+
+\$end (0) 0
+error (256)
+NUM (258) 2
+OP (259) 1
+
+
+Nonterminals, with rules where they appear
+
+\$accept (5)
+ on left: 0
+exp (6)
+ on left: 1 2, on right: 0 1
+
+
+state 0
+
+ 0 \$accept: . exp \$end
+ 1 exp: . exp OP exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 2
+
+
+state 1
+
+ 2 exp: NUM .
+
+ \$default reduce using rule 2 (exp)
+
+
+state 2
+
+ 0 \$accept: exp . \$end
+ 1 exp: exp . OP exp
+
+ \$end shift, and go to state 3
+ OP shift, and go to state 4
+
+
+state 3
+
+ 0 \$accept: exp \$end .
+
+ \$default accept
+
+
+state 4
+
+ 1 exp: . exp OP exp
+ 1 | exp OP . exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 5
+
+
+state 5
+
+ 1 exp: exp . OP exp [\$end, OP]
+ 1 | exp OP exp . [\$end, OP]
+
+ OP shift, and go to state 4
+
+ OP [reduce using rule 1 (exp)]
+ \$default reduce using rule 1 (exp)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:225: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 61 ) # 61. conflicts.at:235: Resolved SR Conflicts
+ at_setup_line='conflicts.at:235'
+ at_desc='Resolved SR Conflicts'
+ $at_quiet $ECHO_N " 61: Resolved SR Conflicts $ECHO_C"
+ at_xfail=no
+ (
+ echo "61. conflicts.at:235: testing ..."
+ $at_traceon
+
+
+
+
+cat >input.y <<'_ATEOF'
+%token NUM OP
+%left OP
+%%
+exp: exp OP exp | NUM;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:246: bison -o input.c --report=all input.y"
+echo conflicts.at:246 >$at_check_line_file
+( $at_traceon; bison -o input.c --report=all input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:246: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check the contents of the report.
+$at_traceoff
+echo "conflicts.at:327: cat input.output"
+echo conflicts.at:327 >$at_check_line_file
+( $at_traceon; cat input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Grammar
+
+ 0 \$accept: exp \$end
+
+ 1 exp: exp OP exp
+ 2 | NUM
+
+
+Terminals, with rules where they appear
+
+\$end (0) 0
+error (256)
+NUM (258) 2
+OP (259) 1
+
+
+Nonterminals, with rules where they appear
+
+\$accept (5)
+ on left: 0
+exp (6)
+ on left: 1 2, on right: 0 1
+
+
+state 0
+
+ 0 \$accept: . exp \$end
+ 1 exp: . exp OP exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 2
+
+
+state 1
+
+ 2 exp: NUM .
+
+ \$default reduce using rule 2 (exp)
+
+
+state 2
+
+ 0 \$accept: exp . \$end
+ 1 exp: exp . OP exp
+
+ \$end shift, and go to state 3
+ OP shift, and go to state 4
+
+
+state 3
+
+ 0 \$accept: exp \$end .
+
+ \$default accept
+
+
+state 4
+
+ 1 exp: . exp OP exp
+ 1 | exp OP . exp
+ 2 | . NUM
+
+ NUM shift, and go to state 1
+
+ exp go to state 5
+
+
+state 5
+
+ 1 exp: exp . OP exp [\$end, OP]
+ 1 | exp OP exp . [\$end, OP]
+
+ \$default reduce using rule 1 (exp)
+
+ Conflict between rule 1 and token OP resolved as reduce (%left OP).
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:327: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 62 ) # 62. conflicts.at:357: Defaulted Conflicted Reduction
+ at_setup_line='conflicts.at:357'
+ at_desc='Defaulted Conflicted Reduction'
+ $at_quiet $ECHO_N " 62: Defaulted Conflicted Reduction $ECHO_C"
+ at_xfail=no
+ (
+ echo "62. conflicts.at:357: testing ..."
+ $at_traceon
+
+
+
+cat >input.y <<'_ATEOF'
+%%
+exp: num | id;
+num: '0';
+id : '0';
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:371: bison -o input.c --report=all input.y"
+echo conflicts.at:371 >$at_check_line_file
+( $at_traceon; bison -o input.c --report=all input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: conflicts: 1 reduce/reduce
+input.y:4.6-8: warning: rule never reduced because of conflicts: id: '0'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:371: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check the contents of the report.
+$at_traceoff
+echo "conflicts.at:465: cat input.output"
+echo conflicts.at:465 >$at_check_line_file
+( $at_traceon; cat input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Rules never reduced
+
+ 4 id: '0'
+
+
+State 1 conflicts: 1 reduce/reduce
+
+
+Grammar
+
+ 0 \$accept: exp \$end
+
+ 1 exp: num
+ 2 | id
+
+ 3 num: '0'
+
+ 4 id: '0'
+
+
+Terminals, with rules where they appear
+
+\$end (0) 0
+'0' (48) 3 4
+error (256)
+
+
+Nonterminals, with rules where they appear
+
+\$accept (4)
+ on left: 0
+exp (5)
+ on left: 1 2, on right: 0
+num (6)
+ on left: 3, on right: 1
+id (7)
+ on left: 4, on right: 2
+
+
+state 0
+
+ 0 \$accept: . exp \$end
+ 1 exp: . num
+ 2 | . id
+ 3 num: . '0'
+ 4 id: . '0'
+
+ '0' shift, and go to state 1
+
+ exp go to state 2
+ num go to state 3
+ id go to state 4
+
+
+state 1
+
+ 3 num: '0' . [\$end]
+ 4 id: '0' . [\$end]
+
+ \$end reduce using rule 3 (num)
+ \$end [reduce using rule 4 (id)]
+ \$default reduce using rule 3 (num)
+
+
+state 2
+
+ 0 \$accept: exp . \$end
+
+ \$end shift, and go to state 5
+
+
+state 3
+
+ 1 exp: num .
+
+ \$default reduce using rule 1 (exp)
+
+
+state 4
+
+ 2 exp: id .
+
+ \$default reduce using rule 2 (exp)
+
+
+state 5
+
+ 0 \$accept: exp \$end .
+
+ \$default accept
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:465: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 63 ) # 63. conflicts.at:476: %expect not enough
+ at_setup_line='conflicts.at:476'
+ at_desc='%expect not enough'
+ $at_quiet $ECHO_N " 63: %expect not enough $ECHO_C"
+ at_xfail=no
+ (
+ echo "63. conflicts.at:476: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%token NUM OP
+%expect 0
+%%
+exp: exp OP exp | NUM;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:488: bison -o input.c input.y"
+echo conflicts.at:488 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: conflicts: 1 shift/reduce
+input.y: expected 0 shift/reduce conflicts
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "conflicts.at:488: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 64 ) # 64. conflicts.at:496: %expect right
+ at_setup_line='conflicts.at:496'
+ at_desc='%expect right'
+ $at_quiet $ECHO_N " 64: %expect right $ECHO_C"
+ at_xfail=no
+ (
+ echo "64. conflicts.at:496: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%token NUM OP
+%expect 1
+%%
+exp: exp OP exp | NUM;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:505: bison -o input.c input.y"
+echo conflicts.at:505 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:505: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 65 ) # 65. conflicts.at:513: %expect too much
+ at_setup_line='conflicts.at:513'
+ at_desc='%expect too much'
+ $at_quiet $ECHO_N " 65: %expect too much $ECHO_C"
+ at_xfail=no
+ (
+ echo "65. conflicts.at:513: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%token NUM OP
+%expect 2
+%%
+exp: exp OP exp | NUM;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:525: bison -o input.c input.y"
+echo conflicts.at:525 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: conflicts: 1 shift/reduce
+input.y: expected 2 shift/reduce conflicts
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "conflicts.at:525: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 66 ) # 66. conflicts.at:533: %expect with reduce conflicts
+ at_setup_line='conflicts.at:533'
+ at_desc='%expect with reduce conflicts'
+ $at_quiet $ECHO_N " 66: %expect with reduce conflicts $ECHO_C"
+ at_xfail=no
+ (
+ echo "66. conflicts.at:533: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%expect 0
+%%
+program: a 'a' | a a;
+a: 'a';
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:545: bison -o input.c input.y"
+echo conflicts.at:545 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: conflicts: 1 reduce/reduce
+input.y: expected 0 reduce/reduce conflicts
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "conflicts.at:545: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 67 ) # 67. conflicts.at:553: %no-default-prec without %prec
+ at_setup_line='conflicts.at:553'
+ at_desc='%no-default-prec without %prec'
+ $at_quiet $ECHO_N " 67: %no-default-prec without %prec $ECHO_C"
+ at_xfail=no
+ (
+ echo "67. conflicts.at:553: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%left '+'
+%left '*'
+
+%%
+
+%no-default-prec;
+
+e: e '+' e
+ | e '*' e
+ | '0'
+ ;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:571: bison -o input.c input.y"
+echo conflicts.at:571 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: conflicts: 4 shift/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:571: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 68 ) # 68. conflicts.at:579: %no-default-prec with %prec
+ at_setup_line='conflicts.at:579'
+ at_desc='%no-default-prec with %prec'
+ $at_quiet $ECHO_N " 68: %no-default-prec with %prec $ECHO_C"
+ at_xfail=no
+ (
+ echo "68. conflicts.at:579: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%left '+'
+%left '*'
+
+%%
+
+%no-default-prec;
+
+e: e '+' e %prec '+'
+ | e '*' e %prec '*'
+ | '0'
+ ;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:595: bison -o input.c input.y"
+echo conflicts.at:595 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 69 ) # 69. conflicts.at:603: %default-prec
+ at_setup_line='conflicts.at:603'
+ at_desc='%default-prec'
+ $at_quiet $ECHO_N " 69: %default-prec $ECHO_C"
+ at_xfail=no
+ (
+ echo "69. conflicts.at:603: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%left '+'
+%left '*'
+
+%%
+
+%default-prec;
+
+e: e '+' e
+ | e '*' e
+ | '0'
+ ;
+_ATEOF
+
+
+$at_traceoff
+echo "conflicts.at:619: bison -o input.c input.y"
+echo conflicts.at:619 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "conflicts.at:619: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-9 ) # Banner 9. calc.at:541
+ cat <<\_ATEOF
+
+Simple LALR(1) Calculator.
+
+_ATEOF
+ ;;
+
+ 70 ) # 70. calc.at:550: Calculator
+ at_setup_line='calc.at:550'
+ at_desc='Calculator '
+ $at_quiet $ECHO_N " 70: Calculator $ECHO_C"
+ at_xfail=no
+ (
+ echo "70. calc.at:550: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:550: bison -o calc.c calc.y"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:550: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc /dev/null"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:550: \$PREPARSER ./calc input"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:550: cat stderr"
+echo calc.at:550 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 71 ) # 71. calc.at:552: Calculator %defines
+ at_setup_line='calc.at:552'
+ at_desc='Calculator %defines'
+ $at_quiet $ECHO_N " 71: Calculator %defines $ECHO_C"
+ at_xfail=no
+ (
+ echo "71. calc.at:552: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%defines
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:552: bison -o calc.c calc.y"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:552: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc /dev/null"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:552: \$PREPARSER ./calc input"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:552: cat stderr"
+echo calc.at:552 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:552: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 72 ) # 72. calc.at:553: Calculator %locations
+ at_setup_line='calc.at:553'
+ at_desc='Calculator %locations'
+ $at_quiet $ECHO_N " 72: Calculator %locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "72. calc.at:553: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%locations
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:553: bison -o calc.c calc.y"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:553: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc /dev/null"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:553: \$PREPARSER ./calc input"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:553: cat stderr"
+echo calc.at:553 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:553: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 73 ) # 73. calc.at:554: Calculator %name-prefix="calc"
+ at_setup_line='calc.at:554'
+ at_desc='Calculator %name-prefix="calc"'
+ $at_quiet $ECHO_N " 73: Calculator %name-prefix="calc" $ECHO_C"
+ at_xfail=no
+ (
+ echo "73. calc.at:554: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%name-prefix="calc"
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:554: bison -o calc.c calc.y"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:554: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc /dev/null"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:554: \$PREPARSER ./calc input"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:554: cat stderr"
+echo calc.at:554 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:554: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 74 ) # 74. calc.at:555: Calculator %verbose
+ at_setup_line='calc.at:555'
+ at_desc='Calculator %verbose'
+ $at_quiet $ECHO_N " 74: Calculator %verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "74. calc.at:555: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%verbose
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:555: bison -o calc.c calc.y"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:555: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc /dev/null"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:555: \$PREPARSER ./calc input"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:555: cat stderr"
+echo calc.at:555 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:555: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 75 ) # 75. calc.at:556: Calculator %yacc
+ at_setup_line='calc.at:556'
+ at_desc='Calculator %yacc'
+ $at_quiet $ECHO_N " 75: Calculator %yacc $ECHO_C"
+ at_xfail=no
+ (
+ echo "75. calc.at:556: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:556: bison -o calc.c calc.y"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:556: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc /dev/null"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:556: \$PREPARSER ./calc input"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:556: cat stderr"
+echo calc.at:556 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 76 ) # 76. calc.at:557: Calculator %error-verbose
+ at_setup_line='calc.at:557'
+ at_desc='Calculator %error-verbose'
+ $at_quiet $ECHO_N " 76: Calculator %error-verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "76. calc.at:557: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%error-verbose
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:557: bison -o calc.c calc.y"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:557: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc /dev/null"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:557: \$PREPARSER ./calc input"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:557: cat stderr"
+echo calc.at:557 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:557: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 77 ) # 77. calc.at:559: Calculator %pure-parser %locations
+ at_setup_line='calc.at:559'
+ at_desc='Calculator %pure-parser %locations'
+ $at_quiet $ECHO_N " 77: Calculator %pure-parser %locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "77. calc.at:559: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%pure-parser %locations
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:559: bison -o calc.c calc.y"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:559: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc /dev/null"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:559: \$PREPARSER ./calc input"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:559: cat stderr"
+echo calc.at:559 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:559: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 78 ) # 78. calc.at:560: Calculator %error-verbose %locations
+ at_setup_line='calc.at:560'
+ at_desc='Calculator %error-verbose %locations'
+ $at_quiet $ECHO_N " 78: Calculator %error-verbose %locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "78. calc.at:560: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%error-verbose %locations
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:560: bison -o calc.c calc.y"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:560: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc /dev/null"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:560: \$PREPARSER ./calc input"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:560: cat stderr"
+echo calc.at:560 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:560: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 79 ) # 79. calc.at:562: Calculator %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:562'
+ at_desc='Calculator %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N " 79: Calculator %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "79. calc.at:562: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:562: bison -o calc.c calc.y"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:562: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc /dev/null"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:562: \$PREPARSER ./calc input"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:562: cat stderr"
+echo calc.at:562 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:562: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 80 ) # 80. calc.at:564: Calculator %debug
+ at_setup_line='calc.at:564'
+ at_desc='Calculator %debug'
+ $at_quiet $ECHO_N " 80: Calculator %debug $ECHO_C"
+ at_xfail=no
+ (
+ echo "80. calc.at:564: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%debug
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:564: bison -o calc.c calc.y"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:564: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc /dev/null"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:564: \$PREPARSER ./calc input"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:564: cat stderr"
+echo calc.at:564 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:564: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 81 ) # 81. calc.at:565: Calculator %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:565'
+ at_desc='Calculator %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N " 81: Calculator %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "81. calc.at:565: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:565: bison -o calc.c calc.y"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:565: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc /dev/null"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:565: \$PREPARSER ./calc input"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:565: cat stderr"
+echo calc.at:565 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:565: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 82 ) # 82. calc.at:567: Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:567'
+ at_desc='Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N " 82: Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "82. calc.at:567: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:567: bison -o calc.c calc.y"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:567: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc /dev/null"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:567: \$PREPARSER ./calc input"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:567: cat stderr"
+echo calc.at:567 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:567: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 83 ) # 83. calc.at:569: Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+ at_setup_line='calc.at:569'
+ at_desc='Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}'
+ $at_quiet $ECHO_N " 83: Calculator %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}$ECHO_C"
+ at_xfail=no
+ (
+ echo "83. calc.at:569: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (YYLTYPE *llocp,
+ semantic_value *result, int *count,
+ const char *s
+ );
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { ++*count; ++global_count; }
+;
+
+line:
+ '\n'
+| exp '\n' { *result = global_result = $1; }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (YYLTYPE *llocp,
+ semantic_value *result, int *count,
+ const char *s)
+{
+(void) result; (void) count;
+
+ fprintf (stderr, "%d.%d",
+ (*llocp).first_line, (*llocp).first_column);
+ if ((*llocp).first_line != (*llocp).last_line)
+ fprintf (stderr, "-%d.%d",
+ (*llocp).last_line, (*llocp).last_column - 1);
+ else if ((*llocp).first_column != (*llocp).last_column - 1)
+ fprintf (stderr, "-%d",
+ (*llocp).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse (&result, &count);
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:569: bison -o calc.c calc.y"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:569: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc /dev/null"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:569: \$PREPARSER ./calc input"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:569: cat stderr"
+echo calc.at:569 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:569: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-10 ) # Banner 10. calc.at:576
+ cat <<\_ATEOF
+
+Simple GLR Calculator.
+
+_ATEOF
+ ;;
+
+ 84 ) # 84. calc.at:586: Calculator %glr-parser
+ at_setup_line='calc.at:586'
+ at_desc='Calculator %glr-parser '
+ $at_quiet $ECHO_N " 84: Calculator %glr-parser $ECHO_C"
+ at_xfail=no
+ (
+ echo "84. calc.at:586: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:586: bison -o calc.c calc.y"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:586: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc /dev/null"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:586: \$PREPARSER ./calc input"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:586: cat stderr"
+echo calc.at:586 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:586: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 85 ) # 85. calc.at:588: Calculator %glr-parser %defines
+ at_setup_line='calc.at:588'
+ at_desc='Calculator %glr-parser %defines'
+ $at_quiet $ECHO_N " 85: Calculator %glr-parser %defines $ECHO_C"
+ at_xfail=no
+ (
+ echo "85. calc.at:588: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %defines
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:588: bison -o calc.c calc.y"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:588: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc /dev/null"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:588: \$PREPARSER ./calc input"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:588: cat stderr"
+echo calc.at:588 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:588: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 86 ) # 86. calc.at:589: Calculator %glr-parser %locations
+ at_setup_line='calc.at:589'
+ at_desc='Calculator %glr-parser %locations'
+ $at_quiet $ECHO_N " 86: Calculator %glr-parser %locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "86. calc.at:589: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %locations
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:589: bison -o calc.c calc.y"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:589: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc /dev/null"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:589: \$PREPARSER ./calc input"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:589: cat stderr"
+echo calc.at:589 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:589: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 87 ) # 87. calc.at:590: Calculator %glr-parser %name-prefix="calc"
+ at_setup_line='calc.at:590'
+ at_desc='Calculator %glr-parser %name-prefix="calc"'
+ $at_quiet $ECHO_N " 87: Calculator %glr-parser %name-prefix="calc" $ECHO_C"
+ at_xfail=no
+ (
+ echo "87. calc.at:590: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %name-prefix="calc"
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:590: bison -o calc.c calc.y"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:590: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc /dev/null"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:590: \$PREPARSER ./calc input"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:590: cat stderr"
+echo calc.at:590 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:590: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 88 ) # 88. calc.at:591: Calculator %glr-parser %verbose
+ at_setup_line='calc.at:591'
+ at_desc='Calculator %glr-parser %verbose'
+ $at_quiet $ECHO_N " 88: Calculator %glr-parser %verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "88. calc.at:591: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %verbose
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:591: bison -o calc.c calc.y"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:591: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc /dev/null"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:591: \$PREPARSER ./calc input"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:591: cat stderr"
+echo calc.at:591 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:591: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 89 ) # 89. calc.at:592: Calculator %glr-parser %yacc
+ at_setup_line='calc.at:592'
+ at_desc='Calculator %glr-parser %yacc'
+ $at_quiet $ECHO_N " 89: Calculator %glr-parser %yacc $ECHO_C"
+ at_xfail=no
+ (
+ echo "89. calc.at:592: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:592: bison -o calc.c calc.y"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:592: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc /dev/null"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:592: \$PREPARSER ./calc input"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:592: cat stderr"
+echo calc.at:592 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:592: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 90 ) # 90. calc.at:593: Calculator %glr-parser %error-verbose
+ at_setup_line='calc.at:593'
+ at_desc='Calculator %glr-parser %error-verbose'
+ $at_quiet $ECHO_N " 90: Calculator %glr-parser %error-verbose $ECHO_C"
+ at_xfail=no
+ (
+ echo "90. calc.at:593: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %error-verbose
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:593: bison -o calc.c calc.y"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:593: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc /dev/null"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:593: \$PREPARSER ./calc input"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:593: cat stderr"
+echo calc.at:593 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:593: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 91 ) # 91. calc.at:595: Calculator %glr-parser %pure-parser %locations
+ at_setup_line='calc.at:595'
+ at_desc='Calculator %glr-parser %pure-parser %locations'
+ $at_quiet $ECHO_N " 91: Calculator %glr-parser %pure-parser %locations$ECHO_C"
+ at_xfail=no
+ (
+ echo "91. calc.at:595: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %pure-parser %locations
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (YYLTYPE *llocp,
+
+ const char *s
+ );
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (YYLTYPE *llocp,
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (*llocp).first_line, (*llocp).first_column);
+ if ((*llocp).first_line != (*llocp).last_line)
+ fprintf (stderr, "-%d.%d",
+ (*llocp).last_line, (*llocp).last_column - 1);
+ else if ((*llocp).first_column != (*llocp).last_column - 1)
+ fprintf (stderr, "-%d",
+ (*llocp).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:595: bison -o calc.c calc.y"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:595: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc /dev/null"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:595: \$PREPARSER ./calc input"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:595: cat stderr"
+echo calc.at:595 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:595: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 92 ) # 92. calc.at:596: Calculator %glr-parser %error-verbose %locations
+ at_setup_line='calc.at:596'
+ at_desc='Calculator %glr-parser %error-verbose %locations'
+ $at_quiet $ECHO_N " 92: Calculator %glr-parser %error-verbose %locations$ECHO_C"
+ at_xfail=no
+ (
+ echo "92. calc.at:596: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %error-verbose %locations
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:596: bison -o calc.c calc.y"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:596: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc /dev/null"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:596: \$PREPARSER ./calc input"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:596: cat stderr"
+echo calc.at:596 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:596: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 93 ) # 93. calc.at:598: Calculator %glr-parser %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:598'
+ at_desc='Calculator %glr-parser %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N " 93: Calculator %glr-parser %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "93. calc.at:598: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %error-verbose %locations %defines %name-prefix="calc" %verbose %yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:598: bison -o calc.c calc.y"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:598: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc /dev/null"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:598: \$PREPARSER ./calc input"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:598: cat stderr"
+echo calc.at:598 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:598: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 94 ) # 94. calc.at:600: Calculator %glr-parser %debug
+ at_setup_line='calc.at:600'
+ at_desc='Calculator %glr-parser %debug'
+ $at_quiet $ECHO_N " 94: Calculator %glr-parser %debug $ECHO_C"
+ at_xfail=no
+ (
+ echo "94. calc.at:600: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %debug
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ }
+
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:600: bison -o calc.c calc.y"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:600: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc /dev/null"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:600: \$PREPARSER ./calc input"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:600: cat stderr"
+echo calc.at:600 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:600: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 95 ) # 95. calc.at:601: Calculator %glr-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:601'
+ at_desc='Calculator %glr-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N " 95: Calculator %glr-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "95. calc.at:601: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (
+
+ const char *s
+ );
+static int yylex (void);
+static int get_char (void);
+static void unget_char ( int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (yylloc).first_line, (yylloc).first_column);
+ if ((yylloc).first_line != (yylloc).last_line)
+ fprintf (stderr, "-%d.%d",
+ (yylloc).last_line, (yylloc).last_column - 1);
+ else if ((yylloc).first_column != (yylloc).last_column - 1)
+ fprintf (stderr, "-%d",
+ (yylloc).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (void)
+{
+ int res = getc (input);
+ ;
+
+ last_yylloc = (yylloc);
+ if (res == '\n')
+ {
+ (yylloc).last_line++;
+ (yylloc).last_column = 0;
+ }
+ else
+ (yylloc).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char ( int c)
+{
+ ;
+
+ /* Wrong when C == `\n'. */
+ (yylloc) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (void)
+{
+ int c = get_char ();
+ int sign = 1;
+ int n = 0;
+
+ ;
+ if (c == '-')
+ {
+ c = get_char ();
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char ();
+ }
+
+ unget_char ( c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (void)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (yylloc).last_column = 0;
+ (yylloc).last_line = 1;
+
+ }
+
+
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char ()) == ' ' || c == '\t')
+ {
+ (yylloc).first_column = (yylloc).last_column;
+ (yylloc).first_line = (yylloc).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char ( c);
+ (yylval).ival = read_signed_integer ();
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:601: bison -o calc.c calc.y"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:601: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc /dev/null"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:601: \$PREPARSER ./calc input"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:601: cat stderr"
+echo calc.at:601 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:601: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 96 ) # 96. calc.at:603: Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:603'
+ at_desc='Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N " 96: Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "96. calc.at:603: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (YYLTYPE *llocp,
+
+ const char *s
+ );
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (YYLTYPE *llocp,
+
+ const char *s)
+{
+
+
+ fprintf (stderr, "%d.%d",
+ (*llocp).first_line, (*llocp).first_column);
+ if ((*llocp).first_line != (*llocp).last_line)
+ fprintf (stderr, "-%d.%d",
+ (*llocp).last_line, (*llocp).last_column - 1);
+ else if ((*llocp).first_column != (*llocp).last_column - 1)
+ fprintf (stderr, "-%d",
+ (*llocp).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:603: bison -o calc.c calc.y"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:603: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc /dev/null"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:603: \$PREPARSER ./calc input"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:603: cat stderr"
+echo calc.at:603 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:603: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 97 ) # 97. calc.at:605: Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+ at_setup_line='calc.at:605'
+ at_desc='Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}'
+ $at_quiet $ECHO_N " 97: Calculator %glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}$ECHO_C"
+ at_xfail=no
+ (
+ echo "97. calc.at:605: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%glr-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (YYLTYPE *llocp,
+ semantic_value *result, int *count,
+ const char *s
+ );
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { ++*count; ++global_count; }
+;
+
+line:
+ '\n'
+| exp '\n' { *result = global_result = $1; }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+static void
+yyerror (YYLTYPE *llocp,
+ semantic_value *result, int *count,
+ const char *s)
+{
+(void) result; (void) count;
+
+ fprintf (stderr, "%d.%d",
+ (*llocp).first_line, (*llocp).first_column);
+ if ((*llocp).first_line != (*llocp).last_line)
+ fprintf (stderr, "-%d.%d",
+ (*llocp).last_line, (*llocp).last_column - 1);
+ else if ((*llocp).first_column != (*llocp).last_column - 1)
+ fprintf (stderr, "-%d",
+ (*llocp).last_column - 1);
+ fprintf (stderr, ": ");
+ fprintf (stderr, "%s\n", s);
+}
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+ yydebug = 1;
+ status = yyparse (&result, &count);
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:605: bison -o calc.c calc.y"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; bison -o calc.c calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "calc.at:605: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.c \$LIBS"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o calc calc.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc /dev/null"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:605: \$PREPARSER ./calc input"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:605: cat stderr"
+echo calc.at:605 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:605: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-11 ) # Banner 11. calc.at:612
+ cat <<\_ATEOF
+
+Simple LALR(1) C++ Calculator.
+
+_ATEOF
+ ;;
+
+ 98 ) # 98. calc.at:621: Calculator %skeleton "lalr1.cc" %defines %locations
+ at_setup_line='calc.at:621'
+ at_desc='Calculator %skeleton "lalr1.cc" %defines %locations '
+ $at_quiet $ECHO_N " 98: Calculator %skeleton "lalr1.cc" %defines %locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "98. calc.at:621: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%skeleton "lalr1.cc" %defines %locations
+%define "global_tokens_and_yystype"
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+#ifndef YYLTYPE
+# define YYLTYPE yy::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+/* A C++ error reporting function. */
+void
+yy::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << l << ": " << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ yy::parser parser;
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:621: bison -o calc.cc calc.y"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; bison -o calc.cc calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "calc.at:621: \$BISON_CXX_WORKS"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "calc.at:621: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.cc \$LIBS"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o calc calc.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc /dev/null"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:621: \$PREPARSER ./calc input"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout
+# 5. Check
+$at_traceoff
+echo "calc.at:621: cat stderr"
+echo calc.at:621 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:621: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 99 ) # 99. calc.at:622: Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:622'
+ at_desc='Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N " 99: Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "99. calc.at:622: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%skeleton "lalr1.cc" %defines %locations %error-verbose %name-prefix="calc" %verbose %yacc
+%define "global_tokens_and_yystype"
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+#ifndef YYLTYPE
+# define YYLTYPE calc::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+/* A C++ error reporting function. */
+void
+calc::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << l << ": " << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ calc::parser parser;
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:622: bison -o calc.cc calc.y"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; bison -o calc.cc calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "calc.at:622: \$BISON_CXX_WORKS"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "calc.at:622: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.cc \$LIBS"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o calc calc.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc /dev/null"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:622: \$PREPARSER ./calc input"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:622: cat stderr"
+echo calc.at:622 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:622: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 100 ) # 100. calc.at:624: Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %debug %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:624'
+ at_desc='Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %debug %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N "100: Calculator %skeleton "lalr1.cc" %defines %locations %error-verbose %debug %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "100. calc.at:624: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%skeleton "lalr1.cc" %defines %locations %error-verbose %debug %name-prefix="calc" %verbose %yacc
+%define "global_tokens_and_yystype"
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+#ifndef YYLTYPE
+# define YYLTYPE calc::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+/* A C++ error reporting function. */
+void
+calc::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << l << ": " << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ calc::parser parser;
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:624: bison -o calc.cc calc.y"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; bison -o calc.cc calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "calc.at:624: \$BISON_CXX_WORKS"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "calc.at:624: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.cc \$LIBS"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o calc calc.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc /dev/null"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:624: \$PREPARSER ./calc input"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:624: cat stderr"
+echo calc.at:624 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:624: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 101 ) # 101. calc.at:626: Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:626'
+ at_desc='Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N "101: Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "101. calc.at:626: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc
+%define "global_tokens_and_yystype"
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+#ifndef YYLTYPE
+# define YYLTYPE calc::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+/* A C++ error reporting function. */
+void
+calc::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << l << ": " << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ calc::parser parser;
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:626: bison -o calc.cc calc.y"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; bison -o calc.cc calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "calc.at:626: \$BISON_CXX_WORKS"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "calc.at:626: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.cc \$LIBS"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o calc calc.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc /dev/null"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:626: \$PREPARSER ./calc input"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:626: cat stderr"
+echo calc.at:626 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:626: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 102 ) # 102. calc.at:628: Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+ at_setup_line='calc.at:628'
+ at_desc='Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}'
+ $at_quiet $ECHO_N "102: Calculator %skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}$ECHO_C"
+ at_xfail=no
+ (
+ echo "102. calc.at:628: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%skeleton "lalr1.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+%define "global_tokens_and_yystype"
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+#ifndef YYLTYPE
+# define YYLTYPE calc::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { ++*count; ++global_count; }
+;
+
+line:
+ '\n'
+| exp '\n' { *result = global_result = $1; }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+/* A C++ error reporting function. */
+void
+calc::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << l << ": " << m << std::endl;
+}
+
+int
+yyparse (semantic_value *result, int *count)
+{
+ calc::parser parser (result, count);
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse (&result, &count);
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:628: bison -o calc.cc calc.y"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; bison -o calc.cc calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "calc.at:628: \$BISON_CXX_WORKS"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "calc.at:628: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.cc \$LIBS"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o calc calc.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc /dev/null"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:628: \$PREPARSER ./calc input"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:628: cat stderr"
+echo calc.at:628 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-12 ) # Banner 12. calc.at:636
+ cat <<\_ATEOF
+
+Simple GLR C++ Calculator.
+
+_ATEOF
+ ;;
+
+ 103 ) # 103. calc.at:651: Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc
+ at_setup_line='calc.at:651'
+ at_desc='Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc'
+ $at_quiet $ECHO_N "103: Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc$ECHO_C"
+ at_xfail=no
+ (
+ echo "103. calc.at:651: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc
+%define "global_tokens_and_yystype"
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+#ifndef YYLTYPE
+# define YYLTYPE calc::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { }
+;
+
+line:
+ '\n'
+| exp '\n' { USE ($1); }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+/* A C++ error reporting function. */
+void
+calc::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << l << ": " << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ calc::parser parser;
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse ();
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:651: bison -o calc.cc calc.y"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; bison -o calc.cc calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "calc.at:651: \$BISON_CXX_WORKS"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "calc.at:651: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.cc \$LIBS"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o calc calc.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc /dev/null"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:651: \$PREPARSER ./calc input"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:651: cat stderr"
+echo calc.at:651 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:651: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 104 ) # 104. calc.at:653: Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+ at_setup_line='calc.at:653'
+ at_desc='Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}'
+ $at_quiet $ECHO_N "104: Calculator %skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}$ECHO_C"
+ at_xfail=no
+ (
+ echo "104. calc.at:653: testing ..."
+ $at_traceon
+
+
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >calc.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Infix notation calculator--calc */
+%skeleton "glr.cc" %defines %locations %pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}
+%define "global_tokens_and_yystype"
+%{
+#include <stdio.h>
+
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#include <ctype.h>
+#define USE(Var)
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+
+static semantic_value global_result = 0;
+static int global_count = 0;
+%}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%{
+static int power (int base, int exponent);
+#ifndef YYLTYPE
+# define YYLTYPE calc::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column
+
+static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp);
+static int get_char (YYSTYPE *lvalp, YYLTYPE *llocp);
+static void unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c);
+%}
+
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize (0);
+}
+
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { ++*count; ++global_count; }
+;
+
+line:
+ '\n'
+| exp '\n' { *result = global_result = $1; }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
+/* The input. */
+static FILE *input;
+
+/* A C++ error reporting function. */
+void
+calc::parser::error (const location& l, const std::string& m)
+{
+ (void) l;
+ std::cerr << l << ": " << m << std::endl;
+}
+
+int
+yyparse (semantic_value *result, int *count)
+{
+ calc::parser parser (result, count);
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+
+
+static YYLTYPE last_yylloc;
+
+static int
+get_char (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int res = getc (input);
+ (void) lvalp;(void) llocp;
+
+ last_yylloc = (*llocp);
+ if (res == '\n')
+ {
+ (*llocp).last_line++;
+ (*llocp).last_column = 0;
+ }
+ else
+ (*llocp).last_column++;
+
+ return res;
+}
+
+
+static void
+unget_char (YYSTYPE *lvalp, YYLTYPE *llocp, int c)
+{
+ (void) lvalp;(void) llocp;
+
+ /* Wrong when C == `\n'. */
+ (*llocp) = last_yylloc;
+
+ ungetc (c, input);
+}
+
+static int
+read_signed_integer (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ int c = get_char (lvalp, llocp);
+ int sign = 1;
+ int n = 0;
+
+ (void) lvalp;(void) llocp;
+ if (c == '-')
+ {
+ c = get_char (lvalp, llocp);
+ sign = -1;
+ }
+
+ while (isdigit (c))
+ {
+ n = 10 * n + (c - '0');
+ c = get_char (lvalp, llocp);
+ }
+
+ unget_char (lvalp, llocp, c);
+
+ return sign * n;
+}
+
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number. Skips all |
+| blanks and tabs, returns 0 for EOF. |
+`---------------------------------------------------------------*/
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static int init = 1;
+ int c;
+
+ if (init)
+ {
+ init = 0;
+
+ (*llocp).last_column = 0;
+ (*llocp).last_line = 1;
+
+ }
+
+
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+
+ /* Skip white space. */
+ while ((c = get_char (lvalp, llocp)) == ' ' || c == '\t')
+ {
+ (*llocp).first_column = (*llocp).last_column;
+ (*llocp).first_line = (*llocp).last_line;
+
+ }
+
+ /* process numbers */
+ if (c == '.' || isdigit (c))
+ {
+ unget_char (lvalp, llocp, c);
+ (*lvalp).ival = read_signed_integer (lvalp, llocp);
+ return NUM;
+ }
+
+ /* Return end-of-file. */
+ if (c == EOF)
+ return CALC_EOF;
+
+ /* Return single chars. */
+ return c;
+}
+
+static int
+power (int base, int exponent)
+{
+ int res = 1;
+ if (exponent < 0)
+ exit (3);
+ for (/* Niente */; exponent; --exponent)
+ res *= base;
+ return res;
+}
+
+
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
+
+ /* This used to be alarm (10), but that isn't enough time for
+ a July 1995 vintage DEC Alphastation 200 4/100 system,
+ according to Nelson H. F. Beebe. 100 seconds is enough. */
+ alarm (100);
+
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
+
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
+
+
+ status = yyparse (&result, &count);
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
+}
+_ATEOF
+
+
+
+
+
+$at_traceoff
+echo "calc.at:653: bison -o calc.cc calc.y"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; bison -o calc.cc calc.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "calc.at:653: \$BISON_CXX_WORKS"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "calc.at:653: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o calc calc.cc \$LIBS"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o calc calc.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Test the priorities.
+cat >input <<'_ATEOF'
+1 + 2 * 3 = 7
+1 + 2 * -3 = -5
+
+-1^2 = -1
+(-1)^2 = 1
+
+---1 = -1
+
+1 - 2 - 3 = -4
+1 - (2 - 3) = 2
+
+2^2^3 = 256
+(2^2)^3 = 64
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Some syntax errors.
+cat >input <<'_ATEOF'
+0 0
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected number
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1//2
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+error
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected $undefined
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+1 = 2 = 3
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.6: syntax error, unexpected '='
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+
++1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+2.0: syntax error, unexpected '+'
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Exercise error messages with EOF: work on an empty file.
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc /dev/null"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc /dev/null ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.0: syntax error, unexpected end of input
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - test the action associated to `error'
+#
+# - check the look-ahead that triggers an error is not discarded
+# when we enter error recovery. Below, the look-ahead causing the
+# first error is ")", which is needed to recover from the error and
+# produce the "0" that triggers the "0 != 1" error.
+#
+cat >input <<'_ATEOF'
+() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+calc: error: 4444 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# The same, but this time exercising explicitly triggered syntax errors.
+# POSIX says the look-ahead causing the error should not be discarded.
+cat >input <<'_ATEOF'
+(!) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.9: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >input <<'_ATEOF'
+(- *) + (0 0) = 1
+_ATEOF
+
+$at_traceoff
+echo "calc.at:653: \$PREPARSER ./calc input"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; $PREPARSER ./calc input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; tee stderr <$at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Cleanup:/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/ \$[0-9$]* = /d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+cat >expout <<'_ATEOF'
+1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number
+calc: error: 2222 != 1
+_ATEOF
+
+# 3. If locations are not used, remove them.
+
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+
+# 5. Check
+$at_traceoff
+echo "calc.at:653: cat stderr"
+echo calc.at:653 >$at_check_line_file
+( $at_traceon; cat stderr ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff expout $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "calc.at:653: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-13 ) # Banner 13. torture.at:19
+ cat <<\_ATEOF
+
+Torture Tests.
+
+_ATEOF
+ ;;
+
+ 105 ) # 105. torture.at:140: Big triangle
+ at_setup_line='torture.at:140'
+ at_desc='Big triangle'
+ $at_quiet $ECHO_N "105: Big triangle $ECHO_C"
+ at_xfail=no
+ (
+ echo "105. torture.at:140: testing ..."
+ $at_traceon
+
+
+# I have been able to go up to 2000 on my machine.
+# I tried 3000, a 29Mb grammar file, but then my system killed bison.
+# With 500 and the new parser, which consume far too much memory,
+# it gets killed too. Of course the parser is to be cleaned.
+cat >gengram.pl <<'_ATEOF'
+#! /usr/bin/perl -w
+
+use strict;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%error-verbose
+%debug
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+%union
+{
+ int val;
+};
+
+%token END "end"
+%type <val> exp input
+EOF
+
+for my $size (1 .. $max)
+ {
+ print "%token t$size $size \"$size\"\n";
+ };
+
+print <<EOF;
+%%
+input:
+ exp { if (\$1 != 0) abort (); \$\$ = \$1; }
+| input exp { if (\$2 != \$1 + 1) abort (); \$\$ = \$2; }
+;
+
+exp:
+ END
+ { \$\$ = 0; }
+EOF
+
+for my $size (1 .. $max)
+ {
+ use Text::Wrap;
+ print wrap ("| ", " ",
+ (map { "\"$_\"" } (1 .. $size)),
+ " END \n"),
+ " { \$\$ = $size; }\n";
+ };
+print ";\n";
+
+print <<EOF;
+%%
+static int
+yylex (void)
+{
+ static int inner = 1;
+ static int outer = 0;
+ if (outer > $max)
+ return 0;
+ else if (inner > outer)
+ {
+ inner = 1;
+ ++outer;
+ return END;
+ }
+ return inner++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\\n", msg);
+}
+
+int
+main (void)
+{
+ yydebug = !!getenv ("YYDEBUG");
+ return yyparse ();
+}
+EOF
+_ATEOF
+
+
+$at_traceoff
+echo "torture.at:146: perl -w ./gengram.pl 200 || exit 77"
+echo torture.at:146 >$at_check_line_file
+( $at_traceon; perl -w ./gengram.pl 200 || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:146: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+mv stdout input.y
+
+$at_traceoff
+echo "torture.at:147: bison -v -o input.c input.y"
+echo torture.at:147 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:147: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:148: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo torture.at:148 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:148: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:149: \$PREPARSER ./input"
+echo torture.at:149 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:149: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 106 ) # 106. torture.at:232: Big horizontal
+ at_setup_line='torture.at:232'
+ at_desc='Big horizontal'
+ $at_quiet $ECHO_N "106: Big horizontal $ECHO_C"
+ at_xfail=no
+ (
+ echo "106. torture.at:232: testing ..."
+ $at_traceon
+
+
+# I have been able to go up to 10000 on my machine, but I had to
+# increase the maximum stack size (* 100). It gave:
+#
+# input.y 263k
+# input.tab.c 1.3M
+# input 453k
+#
+# gengram.pl 10000 0.70s user 0.01s sys 99% cpu 0.711 total
+# bison input.y 730.56s user 0.53s sys 99% cpu 12:12.34 total
+# gcc -Wall input.tab.c -o input 5.81s user 0.20s sys 100% cpu 6.01 total
+# ./input 0.00s user 0.01s sys 108% cpu 0.01 total
+#
+cat >gengram.pl <<'_ATEOF'
+#! /usr/bin/perl -w
+
+use strict;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%error-verbose
+%debug
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+
+%token
+EOF
+for my $size (1 .. $max)
+ {
+ print " t$size $size \"$size\"\n";
+ };
+
+print <<EOF;
+
+%%
+EOF
+
+use Text::Wrap;
+print
+ wrap ("exp: ", " ",
+ (map { "\"$_\"" } (1 .. $max)), ";"),
+ "\n";
+
+print <<EOF;
+%%
+static int
+yylex (void)
+{
+ static int counter = 1;
+ if (counter > $max)
+ return 0;
+ else
+ return counter++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\\n", msg);
+}
+
+int
+main (void)
+{
+ yydebug = !!getenv ("YYDEBUG");
+ return yyparse ();
+}
+EOF
+_ATEOF
+
+
+$at_traceoff
+echo "torture.at:246: perl -w ./gengram.pl 1000 || exit 77"
+echo torture.at:246 >$at_check_line_file
+( $at_traceon; perl -w ./gengram.pl 1000 || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:246: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+mv stdout input.y
+
+
+# GNU m4 requires about 70 MiB for this test on a 32-bit host.
+# Ask for 200 MiB, which should be plenty even on a 64-bit host.
+data_limit=`(ulimit -S -d) 2>/dev/null`
+case $data_limit in
+[0-9]*)
+ if test "$data_limit" -lt 204000; then
+ $at_traceoff
+echo "torture.at:250: ulimit -S -d 204000 || exit 77"
+echo torture.at:250 >$at_check_line_file
+( $at_traceon; ulimit -S -d 204000 || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:250: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ ulimit -S -d 204000
+ fi
+esac
+
+$at_traceoff
+echo "torture.at:252: bison -v -o input.c input.y"
+echo torture.at:252 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:252: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:253: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo torture.at:253 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:253: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:254: \$PREPARSER ./input"
+echo torture.at:254 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:254: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 107 ) # 107. torture.at:368: Many look-ahead tokens
+ at_setup_line='torture.at:368'
+ at_desc='Many look-ahead tokens'
+ $at_quiet $ECHO_N "107: Many look-ahead tokens $ECHO_C"
+ at_xfail=no
+ (
+ echo "107. torture.at:368: testing ..."
+ $at_traceon
+
+
+cat >gengram.pl <<'_ATEOF'
+#! /usr/bin/perl -w
+
+use strict;
+use Text::Wrap;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+%error-verbose
+%debug
+%{
+# include <stdio.h>
+# include <stdlib.h>
+# include <assert.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+%union
+{
+ int val;
+};
+
+%type <val> input exp
+%token token
+EOF
+
+print
+ wrap ("%type <val> ",
+ " ",
+ map { "n$_" } (1 .. $max)),
+ "\n";
+
+print "%token\n";
+for my $count (1 .. $max)
+ {
+ print " t$count $count \"$count\"\n";
+ };
+
+print <<EOF;
+%%
+input:
+ exp { assert (\$1 == 1); \$\$ = \$1; }
+| input exp { assert (\$2 == \$1 + 1); \$\$ = \$2; }
+;
+
+exp:
+ n1 "1" { assert (\$1 == 1); \$\$ = \$1; }
+EOF
+
+for my $count (2 .. $max)
+ {
+ print "| n$count \"$count\" { assert (\$1 == $count); \$\$ = \$1; }\n";
+ };
+print ";\n";
+
+for my $count (1 .. $max)
+ {
+ print "n$count: token { \$\$ = $count; };\n";
+ };
+
+print <<EOF;
+%%
+static int
+yylex (void)
+{
+ static int return_token = 1;
+ static int counter = 1;
+ if (counter > $max)
+ return 0;
+ if (return_token)
+ {
+ return_token = 0;
+ return token;
+ }
+ return_token = 1;
+ return counter++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\\n", msg);
+}
+
+int
+main (void)
+{
+ yydebug = !!getenv ("YYDEBUG");
+ return yyparse ();
+}
+EOF
+_ATEOF
+
+
+$at_traceoff
+echo "torture.at:370: perl -w ./gengram.pl 1000 || exit 77"
+echo torture.at:370 >$at_check_line_file
+( $at_traceon; perl -w ./gengram.pl 1000 || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; tee stdout <$at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:370: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+mv stdout input.y
+
+
+# GNU m4 requires about 70 MiB for this test on a 32-bit host.
+# Ask for 200 MiB, which should be plenty even on a 64-bit host.
+data_limit=`(ulimit -S -d) 2>/dev/null`
+case $data_limit in
+[0-9]*)
+ if test "$data_limit" -lt 204000; then
+ $at_traceoff
+echo "torture.at:374: ulimit -S -d 204000 || exit 77"
+echo torture.at:374 >$at_check_line_file
+( $at_traceon; ulimit -S -d 204000 || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:374: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ ulimit -S -d 204000
+ fi
+esac
+
+$at_traceoff
+echo "torture.at:376: bison -v -o input.c input.y"
+echo torture.at:376 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:376: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:377: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo torture.at:377 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:377: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:378: \$PREPARSER ./input"
+echo torture.at:378 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:378: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 108 ) # 108. torture.at:445: Exploding the Stack Size with Alloca
+ at_setup_line='torture.at:445'
+ at_desc='Exploding the Stack Size with Alloca'
+ $at_quiet $ECHO_N "108: Exploding the Stack Size with Alloca $ECHO_C"
+ at_xfail=no
+ (
+ echo "108. torture.at:445: testing ..."
+ $at_traceon
+
+
+# A grammar of parens growing the stack thanks to right recursion.
+# exp:
+cat >input.y <<'_ATEOF'
+%{
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#if (defined __GNUC__ || defined __BUILTIN_VA_ARG_INCR \
+ || defined _AIX || defined _MSC_VER || defined _ALLOCA_H)
+# define YYSTACK_USE_ALLOCA 1
+#endif
+
+ static int yylex (void);
+ static void yyerror (const char *msg);
+%}
+%error-verbose
+%debug
+%token WAIT_FOR_EOF
+%%
+exp: WAIT_FOR_EOF exp | ;
+%%
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ if (yylval--)
+ return WAIT_FOR_EOF;
+ else
+ return EOF;
+}
+
+int
+main (int argc, const char **argv)
+{
+ char *endp;
+ if (argc != 2)
+ abort ();
+ yylval = strtol (argv[1], &endp, 10);
+ if (! (argv[1] != endp
+ && 0 <= yylval && yylval <= INT_MAX
+ && errno != ERANGE))
+ abort ();
+ yydebug = 1;
+ return yyparse ();
+}
+_ATEOF
+
+$at_traceoff
+echo "torture.at:452: bison -o input.c input.y"
+echo torture.at:452 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:452: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:452: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo torture.at:452 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:452: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Below the limit of 200.
+$at_traceoff
+echo "torture.at:455: \$PREPARSER ./input 20"
+echo torture.at:455 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input 20 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:455: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# Two enlargements: 2 * 2 * 200.
+$at_traceoff
+echo "torture.at:457: \$PREPARSER ./input 900"
+echo torture.at:457 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input 900 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:457: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# Fails: beyond the limit of 10,000 (which we don't reach anyway since we
+# multiply by two starting at 200 => 5120 is the last possible).
+$at_traceoff
+echo "torture.at:460: \$PREPARSER ./input 10000"
+echo torture.at:460 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input 10000 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 2) ;;
+ *) echo "torture.at:460: exit code was $at_status, expected 2"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 109 ) # 109. torture.at:471: Exploding the Stack Size with Malloc
+ at_setup_line='torture.at:471'
+ at_desc='Exploding the Stack Size with Malloc'
+ $at_quiet $ECHO_N "109: Exploding the Stack Size with Malloc $ECHO_C"
+ at_xfail=no
+ (
+ echo "109. torture.at:471: testing ..."
+ $at_traceon
+
+
+# A grammar of parens growing the stack thanks to right recursion.
+# exp:
+cat >input.y <<'_ATEOF'
+%{
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#define YYSTACK_USE_ALLOCA 0
+ static int yylex (void);
+ static void yyerror (const char *msg);
+%}
+%error-verbose
+%debug
+%token WAIT_FOR_EOF
+%%
+exp: WAIT_FOR_EOF exp | ;
+%%
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ if (yylval--)
+ return WAIT_FOR_EOF;
+ else
+ return EOF;
+}
+
+int
+main (int argc, const char **argv)
+{
+ char *endp;
+ if (argc != 2)
+ abort ();
+ yylval = strtol (argv[1], &endp, 10);
+ if (! (argv[1] != endp
+ && 0 <= yylval && yylval <= INT_MAX
+ && errno != ERANGE))
+ abort ();
+ yydebug = 1;
+ return yyparse ();
+}
+_ATEOF
+
+$at_traceoff
+echo "torture.at:473: bison -o input.c input.y"
+echo torture.at:473 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:473: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "torture.at:473: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo torture.at:473 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:473: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+# Below the limit of 200.
+$at_traceoff
+echo "torture.at:476: \$PREPARSER ./input 20"
+echo torture.at:476 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input 20 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:476: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# Two enlargements: 2 * 2 * 200.
+$at_traceoff
+echo "torture.at:478: \$PREPARSER ./input 900"
+echo torture.at:478 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input 900 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "torture.at:478: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+# Fails: beyond the limit of 10,000 (which we don't reach anyway since we
+# multiply by two starting at 200 => 5120 is the possible).
+$at_traceoff
+echo "torture.at:481: \$PREPARSER ./input 10000"
+echo torture.at:481 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input 10000 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 2) ;;
+ *) echo "torture.at:481: exit code was $at_status, expected 2"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-14 ) # Banner 14. existing.at:21
+ cat <<\_ATEOF
+
+Existing Grammars.
+
+_ATEOF
+ ;;
+
+ 110 ) # 110. existing.at:26: GNU AWK Grammar
+ at_setup_line='existing.at:26'
+ at_desc='GNU AWK Grammar'
+ $at_quiet $ECHO_N "110: GNU AWK Grammar $ECHO_C"
+ at_xfail=no
+ (
+ echo "110. existing.at:26: testing ..."
+ $at_traceon
+
+
+# We have been careful to strip all the actions excepts the
+# mid-rule actions. We rely on %expect to check that there are
+# indeed 65 SR conflicts.
+#
+# Bison was once wrong, due to an incorrect computation of nullable.
+# It reported 485 SR conflicts!
+
+cat >input.y <<'_ATEOF'
+%expect 65
+
+%token FUNC_CALL NAME REGEXP
+%token ERROR
+%token YNUMBER YSTRING
+%token RELOP APPEND_OP
+%token ASSIGNOP MATCHOP NEWLINE CONCAT_OP
+%token LEX_BEGIN LEX_END LEX_IF LEX_ELSE LEX_RETURN LEX_DELETE
+%token LEX_WHILE LEX_DO LEX_FOR LEX_BREAK LEX_CONTINUE
+%token LEX_PRINT LEX_PRINTF LEX_NEXT LEX_EXIT LEX_FUNCTION
+%token LEX_GETLINE LEX_NEXTFILE
+%token LEX_IN
+%token LEX_AND LEX_OR INCREMENT DECREMENT
+%token LEX_BUILTIN LEX_LENGTH
+
+/* Lowest to highest */
+%right ASSIGNOP
+%right '?' ':'
+%left LEX_OR
+%left LEX_AND
+%left LEX_GETLINE
+%nonassoc LEX_IN
+%left FUNC_CALL LEX_BUILTIN LEX_LENGTH
+%nonassoc ','
+%nonassoc MATCHOP
+%nonassoc RELOP '<' '>' '|' APPEND_OP TWOWAYIO
+%left CONCAT_OP
+%left YSTRING YNUMBER
+%left '+' '-'
+%left '*' '/' '%'
+%right '!' UNARY
+%right '^'
+%left INCREMENT DECREMENT
+%left '$'
+%left '(' ')'
+%%
+
+start
+ : opt_nls program opt_nls
+ ;
+
+program
+ : rule
+ | program rule
+ | error
+ | program error
+ | /* empty */
+ ;
+
+rule
+ : LEX_BEGIN {} action
+ | LEX_END {} action
+ | LEX_BEGIN statement_term
+ | LEX_END statement_term
+ | pattern action
+ | action
+ | pattern statement_term
+ | function_prologue function_body
+ ;
+
+func_name
+ : NAME
+ | FUNC_CALL
+ | lex_builtin
+ ;
+
+lex_builtin
+ : LEX_BUILTIN
+ | LEX_LENGTH
+ ;
+
+function_prologue
+ : LEX_FUNCTION {} func_name '(' opt_param_list r_paren opt_nls
+ ;
+
+function_body
+ : l_brace statements r_brace opt_semi opt_nls
+ | l_brace r_brace opt_semi opt_nls
+ ;
+
+pattern
+ : exp
+ | exp ',' exp
+ ;
+
+regexp
+ /*
+ * In this rule, want_regexp tells yylex that the next thing
+ * is a regexp so it should read up to the closing slash.
+ */
+ : '/' {} REGEXP '/'
+ ;
+
+action
+ : l_brace statements r_brace opt_semi opt_nls
+ | l_brace r_brace opt_semi opt_nls
+ ;
+
+statements
+ : statement
+ | statements statement
+ | error
+ | statements error
+ ;
+
+statement_term
+ : nls
+ | semi opt_nls
+ ;
+
+statement
+ : semi opt_nls
+ | l_brace r_brace
+ | l_brace statements r_brace
+ | if_statement
+ | LEX_WHILE '(' exp r_paren opt_nls statement
+ | LEX_DO opt_nls statement LEX_WHILE '(' exp r_paren opt_nls
+ | LEX_FOR '(' NAME LEX_IN NAME r_paren opt_nls statement
+ | LEX_FOR '(' opt_exp semi opt_nls exp semi opt_nls opt_exp r_paren opt_nls statement
+ | LEX_FOR '(' opt_exp semi opt_nls semi opt_nls opt_exp r_paren opt_nls statement
+ | LEX_BREAK statement_term
+ | LEX_CONTINUE statement_term
+ | print '(' expression_list r_paren output_redir statement_term
+ | print opt_rexpression_list output_redir statement_term
+ | LEX_NEXT statement_term
+ | LEX_NEXTFILE statement_term
+ | LEX_EXIT opt_exp statement_term
+ | LEX_RETURN {} opt_exp statement_term
+ | LEX_DELETE NAME '[' expression_list ']' statement_term
+ | LEX_DELETE NAME statement_term
+ | exp statement_term
+ ;
+
+print
+ : LEX_PRINT
+ | LEX_PRINTF
+ ;
+
+if_statement
+ : LEX_IF '(' exp r_paren opt_nls statement
+ | LEX_IF '(' exp r_paren opt_nls statement
+ LEX_ELSE opt_nls statement
+ ;
+
+nls
+ : NEWLINE
+ | nls NEWLINE
+ ;
+
+opt_nls
+ : /* empty */
+ | nls
+ ;
+
+input_redir
+ : /* empty */
+ | '<' simp_exp
+ ;
+
+output_redir
+ : /* empty */
+ | '>' exp
+ | APPEND_OP exp
+ | '|' exp
+ | TWOWAYIO exp
+ ;
+
+opt_param_list
+ : /* empty */
+ | param_list
+ ;
+
+param_list
+ : NAME
+ | param_list comma NAME
+ | error
+ | param_list error
+ | param_list comma error
+ ;
+
+/* optional expression, as in for loop */
+opt_exp
+ : /* empty */
+ | exp
+ ;
+
+opt_rexpression_list
+ : /* empty */
+ | rexpression_list
+ ;
+
+rexpression_list
+ : rexp
+ | rexpression_list comma rexp
+ | error
+ | rexpression_list error
+ | rexpression_list error rexp
+ | rexpression_list comma error
+ ;
+
+opt_expression_list
+ : /* empty */
+ | expression_list
+ ;
+
+expression_list
+ : exp
+ | expression_list comma exp
+ | error
+ | expression_list error
+ | expression_list error exp
+ | expression_list comma error
+ ;
+
+/* Expressions, not including the comma operator. */
+exp : variable ASSIGNOP {} exp
+ | '(' expression_list r_paren LEX_IN NAME
+ | exp '|' LEX_GETLINE opt_variable
+ | exp TWOWAYIO LEX_GETLINE opt_variable
+ | LEX_GETLINE opt_variable input_redir
+ | exp LEX_AND exp
+ | exp LEX_OR exp
+ | exp MATCHOP exp
+ | regexp
+ | '!' regexp %prec UNARY
+ | exp LEX_IN NAME
+ | exp RELOP exp
+ | exp '<' exp
+ | exp '>' exp
+ | exp '?' exp ':' exp
+ | simp_exp
+ | exp simp_exp %prec CONCAT_OP
+ ;
+
+rexp
+ : variable ASSIGNOP {} rexp
+ | rexp LEX_AND rexp
+ | rexp LEX_OR rexp
+ | LEX_GETLINE opt_variable input_redir
+ | regexp
+ | '!' regexp %prec UNARY
+ | rexp MATCHOP rexp
+ | rexp LEX_IN NAME
+ | rexp RELOP rexp
+ | rexp '?' rexp ':' rexp
+ | simp_exp
+ | rexp simp_exp %prec CONCAT_OP
+ ;
+
+simp_exp
+ : non_post_simp_exp
+ /* Binary operators in order of decreasing precedence. */
+ | simp_exp '^' simp_exp
+ | simp_exp '*' simp_exp
+ | simp_exp '/' simp_exp
+ | simp_exp '%' simp_exp
+ | simp_exp '+' simp_exp
+ | simp_exp '-' simp_exp
+ | variable INCREMENT
+ | variable DECREMENT
+ ;
+
+non_post_simp_exp
+ : '!' simp_exp %prec UNARY
+ | '(' exp r_paren
+ | LEX_BUILTIN
+ '(' opt_expression_list r_paren
+ | LEX_LENGTH '(' opt_expression_list r_paren
+ | LEX_LENGTH
+ | FUNC_CALL '(' opt_expression_list r_paren
+ | variable
+ | INCREMENT variable
+ | DECREMENT variable
+ | YNUMBER
+ | YSTRING
+ | '-' simp_exp %prec UNARY
+ | '+' simp_exp %prec UNARY
+ ;
+
+opt_variable
+ : /* empty */
+ | variable
+ ;
+
+variable
+ : NAME
+ | NAME '[' expression_list ']'
+ | '$' non_post_simp_exp
+ ;
+
+l_brace
+ : '{' opt_nls
+ ;
+
+r_brace
+ : '}' opt_nls
+ ;
+
+r_paren
+ : ')'
+ ;
+
+opt_semi
+ : /* empty */
+ | semi
+ ;
+
+semi
+ : ';'
+ ;
+
+comma : ',' opt_nls
+ ;
+
+%%
+_ATEOF
+
+
+# Pass plenty of options, to exercise plenty of code, even if we
+# don't actually check the output. But SEGV is watching us, and
+# so might do dmalloc.
+$at_traceoff
+echo "existing.at:356: bison --verbose --defines input.y"
+echo existing.at:356 >$at_check_line_file
+( $at_traceon; bison --verbose --defines input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "existing.at:356: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 111 ) # 111. existing.at:364: GNU Cim Grammar
+ at_setup_line='existing.at:364'
+ at_desc='GNU Cim Grammar'
+ $at_quiet $ECHO_N "111: GNU Cim Grammar $ECHO_C"
+ at_xfail=no
+ (
+ echo "111. existing.at:364: testing ..."
+ $at_traceon
+
+
+# GNU Cim, the GNU Simula 87 Compiler.
+
+# Bison was once wrong, due to an incorrect computation of the RR conflicts.
+# It reported 80 SR && 99 RR conflicts instead of 78/10!!!
+
+cat >input.y <<'_ATEOF'
+%union {}
+
+%token
+ HACTIVATE HAFTER /*HAND*/ HARRAY HAT
+ HBEFORE HBEGIN HBOOLEAN
+ HCHARACTER HCLASS /*HCOMMENT*/ HCONC
+ HDELAY HDO
+ HELSE HEND HEQ /*HEQV*/ HEXTERNAL
+ HFOR
+ HGE HGO HGOTO HGT
+ HHIDDEN
+ HIF /*HIMP*/ HIN HINNER HINSPECT HINTEGER HIS
+ HLABEL HLE HLONG HLT
+ HNAME HNE HNEW HNONE /*HNOT*/ HNOTEXT
+ /*HOR*/ HOTHERWISE
+ HPRIOR HPROCEDURE HPROTECTED
+ HQUA
+ HREACTIVATE HREAL HREF
+ HSHORT HSTEP HSWITCH
+ HTEXT HTHEN HTHIS HTO
+ HUNTIL
+ HVALUE HVAR HVIRTUAL
+ HWHEN HWHILE
+
+ HASSIGNVALUE HASSIGNREF
+ /*HDOT*/ HPAREXPSEPARATOR HLABELSEPARATOR HSTATEMENTSEPARATOR
+ HBEGPAR HENDPAR
+ HEQR HNER
+ HADD HSUB HMUL HDIV HINTDIV HEXP
+ HDOTDOTDOT
+
+%token HIDENTIFIER
+%token HBOOLEANKONST HINTEGERKONST HCHARACTERKONST
+%token HREALKONST
+%token HTEXTKONST
+
+
+%right HASSIGN
+%left HORELSE
+%left HANDTHEN
+%left HEQV
+%left HIMP
+%left HOR
+%left HAND
+
+%left HNOT
+
+%left HVALRELOPERATOR HREFRELOPERATOR HOBJRELOPERATOR
+
+%left HCONC
+
+%left HTERMOPERATOR
+%left UNEAR
+%left HFACTOROPERATOR
+%left HPRIMARYOPERATOR
+
+%left HQUA
+
+%left HDOT
+
+%start MAIN_MODULE
+%%
+/* GRAMATIKK FOR PROGRAM MODULES */
+MAIN_MODULE : {}
+ MODULS
+ | error HSTATEMENTSEPARATOR MBEE_DECLSTMS
+ ;
+EXT_DECLARATION : HEXTERNAL
+ MBEE_TYPE
+ HPROCEDURE
+ {}
+ EXT_LIST
+ |
+ HEXTERNAL
+ HIDENTIFIER
+ HPROCEDURE
+ {}
+ HIDENTIFIER {}
+ EXTERNAL_KIND_ITEM
+ | HEXTERNAL
+ HCLASS
+ {}
+ EXT_LIST
+
+ ;
+EXTERNAL_KIND_ITEM: EXT_IDENT
+ HOBJRELOPERATOR
+ {}
+ MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ HEADING EMPTY_BLOCK
+ {}
+/* |
+ EXT_IDENT
+ {}
+ MBEE_REST_EXT_LIST
+ ;
+MBEE_REST_EXT_LIST: /* EMPTY
+ | HPAREXPSEPARATOR EXT_KIND_LIST
+ ;
+EXT_KIND_LIST : EXT_KIND_ITEM
+ | EXT_KIND_LIST HPAREXPSEPARATOR EXT_KIND_ITEM
+ ;
+EXT_KIND_ITEM : HIDENTIFIER
+ EXT_IDENT
+ {}*/
+ ;
+EMPTY_BLOCK : /*EMPT*/
+ | HBEGIN HEND
+ ;
+EXT_LIST : EXT_ITEM
+ | EXT_LIST HPAREXPSEPARATOR EXT_ITEM
+ ;
+EXT_ITEM : HIDENTIFIER
+ EXT_IDENT
+ ;
+EXT_IDENT : /* EMPTY */
+ | HVALRELOPERATOR {}
+ HTEXTKONST
+ ;
+/* GRAMATIKK FOR TYPER */
+NO_TYPE : /*EMPT*/
+ ;
+MBEE_TYPE : NO_TYPE
+ | TYPE
+ ;
+TYPE : HREF HBEGPAR
+ HIDENTIFIER
+ {}
+ HENDPAR
+ | HTEXT
+ | HBOOLEAN
+ | HCHARACTER
+ | HSHORT HINTEGER
+ | HINTEGER
+ | HREAL
+ | HLONG HREAL
+ ;
+
+/* GRAMATIKK FOR DEL AV SETNINGER */
+MBEE_ELSE_PART : /*EMPT*/
+/* | HELSE
+ HIF
+ EXPRESSION
+ HTHEN {}
+ BLOCK {}
+ MBEE_ELSE_PART {}*/
+ | HELSE {}
+ BLOCK
+ ;
+FOR_LIST : FOR_LIST_ELEMENT
+ | FOR_LIST_ELEMENT
+ HPAREXPSEPARATOR
+ FOR_LIST
+ ;
+FOR_LIST_ELEMENT: EXPRESSION
+ MBEE_F_L_EL_R_PT
+ ;
+MBEE_F_L_EL_R_PT: /*EMPT*/
+ | HWHILE
+ EXPRESSION
+ | HSTEP
+ EXPRESSION
+ HUNTIL
+ EXPRESSION
+ ;
+GOTO : HGO
+ HTO
+ | HGOTO
+ ;
+CONN_STATE_R_PT : WHEN_CLAUSE_LIST
+ | HDO {}
+ BLOCK
+ ;
+WHEN_CLAUSE_LIST: HWHEN
+ HIDENTIFIER
+ HDO {}
+ BLOCK
+ | WHEN_CLAUSE_LIST
+ HWHEN
+ HIDENTIFIER
+ HDO {}
+ BLOCK
+ ;
+MBEE_OTWI_CLAUS : /*EMPT*/
+ | HOTHERWISE {}
+
+ BLOCK
+ ;
+ACTIVATOR : HACTIVATE
+ | HREACTIVATE
+ ;
+SCHEDULE : /*EMPT*/
+ | ATDELAY EXPRESSION {}
+ PRIOR
+ | BEFOREAFTER {}
+ EXPRESSION
+ ;
+ATDELAY : HAT
+ | HDELAY
+ ;
+BEFOREAFTER : HBEFORE
+ | HAFTER
+ ;
+PRIOR : /*EMPT*/
+ | HPRIOR
+ ;
+/* GRAMATIKK FOR SETNINGER OG DEKLARASJONER */
+MODULSTATEMENT : HWHILE
+ EXPRESSION
+ HDO {}
+ BLOCK
+ | HIF
+ EXPRESSION
+ HTHEN {}
+ BLOCK {}
+ MBEE_ELSE_PART
+ | HFOR
+ HIDENTIFIER
+ HASSIGN {}
+ FOR_LIST
+ HDO {}
+ BLOCK
+ | GOTO
+ EXPRESSION
+ | HINSPECT
+ EXPRESSION {}
+ CONN_STATE_R_PT
+ {}
+ MBEE_OTWI_CLAUS
+ | HINNER
+ | HIDENTIFIER
+ HLABELSEPARATOR
+ {}
+ DECLSTATEMENT
+ | EXPRESSION_SIMP
+ HBEGIN
+ {}
+ IMPORT_SPEC_MODULE
+ {}
+ MBEE_DECLSTMS
+ HEND
+ | EXPRESSION_SIMP HBEGIN error HSTATEMENTSEPARATOR
+ MBEE_DECLSTMS HEND
+ | EXPRESSION_SIMP HBEGIN error HEND
+ | EXPRESSION_SIMP
+ | ACTIVATOR EXPRESSION SCHEDULE
+ | HBEGIN
+ {}
+ MBEE_DECLSTMS
+ HEND
+ | MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ HEADING BLOCK
+ | HIDENTIFIER
+ HCLASS
+ NO_TYPE
+ {}
+ IMPORT_SPEC_MODULE
+ HIDENTIFIER
+ {}
+ HEADING
+ BLOCK
+ | HCLASS
+ NO_TYPE
+ HIDENTIFIER
+ {}
+ HEADING
+ BLOCK
+ | EXT_DECLARATION
+ | /*EMPT*/
+ ;
+IMPORT_SPEC_MODULE:
+ ;
+DECLSTATEMENT : MODULSTATEMENT
+ | TYPE
+ HIDENTIFIER
+ MBEE_CONSTANT
+ HPAREXPSEPARATOR
+ {}
+ IDENTIFIER_LISTC
+ | TYPE
+ HIDENTIFIER
+ MBEE_CONSTANT
+ | MBEE_TYPE
+ HARRAY {}
+ ARR_SEGMENT_LIST
+ | HSWITCH
+ HIDENTIFIER
+ HASSIGN {}
+ SWITCH_LIST
+ ;
+BLOCK : DECLSTATEMENT
+ | HBEGIN MBEE_DECLSTMS HEND
+ | HBEGIN error HSTATEMENTSEPARATOR MBEE_DECLSTMS HEND
+ | HBEGIN error HEND
+ ;
+MBEE_DECLSTMS : MBEE_DECLSTMSU
+ ;
+MBEE_DECLSTMSU : DECLSTATEMENT
+ | MBEE_DECLSTMSU
+ HSTATEMENTSEPARATOR
+ DECLSTATEMENT
+ ;
+MODULS : MODULSTATEMENT
+ | MODULS HSTATEMENTSEPARATOR MODULSTATEMENT
+ ;
+/* GRAMATIKK FOR DEL AV DEKLARASJONER */
+ARR_SEGMENT_LIST: ARR_SEGMENT
+ | ARR_SEGMENT_LIST
+ HPAREXPSEPARATOR
+ ARR_SEGMENT
+ ;
+ARR_SEGMENT : ARRAY_SEGMENT
+ HBEGPAR
+ BAUND_PAIR_LIST HENDPAR
+ ;
+ARRAY_SEGMENT : ARRAY_SEGMENT_EL {}
+
+ | ARRAY_SEGMENT_EL
+ HPAREXPSEPARATOR
+ ARRAY_SEGMENT
+ ;
+ARRAY_SEGMENT_EL: HIDENTIFIER
+ ;
+BAUND_PAIR_LIST : BAUND_PAIR
+ | BAUND_PAIR
+ HPAREXPSEPARATOR
+ BAUND_PAIR_LIST
+ ;
+BAUND_PAIR : EXPRESSION
+ HLABELSEPARATOR
+ EXPRESSION
+ ;
+SWITCH_LIST : EXPRESSION
+ | EXPRESSION
+ HPAREXPSEPARATOR
+ SWITCH_LIST
+ ;
+HEADING : MBEE_FMAL_PAR_P HSTATEMENTSEPARATOR {}
+ MBEE_MODE_PART {}
+ MBEE_SPEC_PART {}
+ MBEE_PROT_PART {}
+ MBEE_VIRT_PART
+ ;
+MBEE_FMAL_PAR_P : /*EMPT*/
+ | FMAL_PAR_PART
+ ;
+FMAL_PAR_PART : HBEGPAR NO_TYPE
+ MBEE_LISTV HENDPAR
+ ;
+MBEE_LISTV : /*EMPT*/
+ | LISTV
+ ;
+LISTV : HIDENTIFIER
+ | FPP_CATEG HDOTDOTDOT
+ | HIDENTIFIER {}
+ HPAREXPSEPARATOR LISTV
+ | FPP_SPEC
+ | FPP_SPEC
+ HPAREXPSEPARATOR LISTV
+ ;
+FPP_HEADING : HBEGPAR NO_TYPE
+ FPP_MBEE_LISTV HENDPAR
+ ;
+FPP_MBEE_LISTV : /*EMPT*/
+ | FPP_LISTV
+ ;
+FPP_LISTV : FPP_CATEG HDOTDOTDOT
+ | FPP_SPEC
+ | FPP_SPEC
+ HPAREXPSEPARATOR LISTV
+ ;
+FPP_SPEC : FPP_CATEG SPECIFIER HIDENTIFIER
+ | FPP_CATEG FPP_PROC_DECL_IN_SPEC
+ ;
+FPP_CATEG : HNAME HLABELSEPARATOR
+ | HVALUE HLABELSEPARATOR
+ | HVAR HLABELSEPARATOR
+ | /*EMPT*/
+ ;
+FPP_PROC_DECL_IN_SPEC: MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ FPP_HEADING {} { /* Yes, two "final" actions. */ }
+ ;
+IDENTIFIER_LISTV: HIDENTIFIER
+ | HDOTDOTDOT
+ | HIDENTIFIER {}
+ HPAREXPSEPARATOR IDENTIFIER_LISTV
+ ;
+MBEE_MODE_PART : /*EMPT*/
+ | MODE_PART
+ ;
+MODE_PART : NAME_PART
+ | VALUE_PART
+ | VAR_PART
+ | NAME_PART VALUE_PART
+ | VALUE_PART NAME_PART
+ | NAME_PART VAR_PART
+ | VAR_PART NAME_PART
+ | VALUE_PART VAR_PART
+ | VAR_PART VALUE_PART
+ | VAR_PART NAME_PART VALUE_PART
+ | NAME_PART VAR_PART VALUE_PART
+ | NAME_PART VALUE_PART VAR_PART
+ | VAR_PART VALUE_PART NAME_PART
+ | VALUE_PART VAR_PART NAME_PART
+ | VALUE_PART NAME_PART VAR_PART
+ ;
+NAME_PART : HNAME {}
+ IDENTIFIER_LISTV
+ HSTATEMENTSEPARATOR
+ ;
+VAR_PART : HVAR {}
+ IDENTIFIER_LISTV
+ HSTATEMENTSEPARATOR
+ ;
+VALUE_PART : HVALUE {}
+ IDENTIFIER_LISTV HSTATEMENTSEPARATOR
+ ;
+MBEE_SPEC_PART : /*EMPT*/
+ | SPEC_PART
+ ;
+SPEC_PART : ONE_SPEC
+ | SPEC_PART ONE_SPEC
+ ;
+ONE_SPEC : SPECIFIER IDENTIFIER_LIST HSTATEMENTSEPARATOR
+ | NO_TYPE HPROCEDURE HIDENTIFIER HOBJRELOPERATOR
+ {}
+ PROC_DECL_IN_SPEC HSTATEMENTSEPARATOR
+ | FPP_PROC_DECL_IN_SPEC HSTATEMENTSEPARATOR
+ | MBEE_TYPE HPROCEDURE HIDENTIFIER HSTATEMENTSEPARATOR
+ | MBEE_TYPE HPROCEDURE HIDENTIFIER HPAREXPSEPARATOR
+ IDENTIFIER_LIST HSTATEMENTSEPARATOR
+ ;
+SPECIFIER : TYPE
+ | MBEE_TYPE
+ HARRAY
+ | HLABEL
+ | HSWITCH
+ ;
+PROC_DECL_IN_SPEC: MBEE_TYPE HPROCEDURE
+ HIDENTIFIER
+ {}
+ HEADING
+ {}
+ MBEE_BEGIN_END
+ ;
+MBEE_BEGIN_END : /* EMPTY */
+ | HBEGIN HEND
+ ;
+MBEE_PROT_PART : /*EMPT*/
+ | PROTECTION_PART
+ ;
+PROTECTION_PART : PROT_SPECIFIER IDENTIFIER_LIST
+ HSTATEMENTSEPARATOR
+ | PROTECTION_PART PROT_SPECIFIER
+ IDENTIFIER_LIST HSTATEMENTSEPARATOR
+ ;
+PROT_SPECIFIER : HHIDDEN
+ | HPROTECTED
+ | HHIDDEN
+ HPROTECTED
+ | HPROTECTED
+ HHIDDEN
+ ;
+MBEE_VIRT_PART : /*EMPT*/
+ | VIRTUAL_PART
+ ;
+VIRTUAL_PART : HVIRTUAL
+ HLABELSEPARATOR
+ MBEE_SPEC_PART
+ ;
+IDENTIFIER_LIST : HIDENTIFIER
+ | IDENTIFIER_LIST HPAREXPSEPARATOR
+ HIDENTIFIER
+ ;
+IDENTIFIER_LISTC: HIDENTIFIER
+ MBEE_CONSTANT
+ | IDENTIFIER_LISTC HPAREXPSEPARATOR
+ HIDENTIFIER
+ MBEE_CONSTANT
+ ;
+MBEE_CONSTANT : /* EMPTY */
+ | HVALRELOPERATOR
+ {}
+ EXPRESSION
+ ;
+
+/* GRAMATIKK FOR UTTRYKK */
+EXPRESSION : EXPRESSION_SIMP
+ | HIF
+ EXPRESSION
+ HTHEN
+ EXPRESSION
+ HELSE
+ EXPRESSION
+ ;
+EXPRESSION_SIMP : EXPRESSION_SIMP
+ HASSIGN
+ EXPRESSION
+ |
+
+ EXPRESSION_SIMP
+ HCONC
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP HOR
+ HELSE
+ EXPRESSION_SIMP
+ %prec HORELSE
+ | EXPRESSION_SIMP HAND
+ HTHEN
+ EXPRESSION_SIMP
+ %prec HANDTHEN
+ | EXPRESSION_SIMP
+ HEQV EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HIMP EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HOR EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HAND EXPRESSION_SIMP
+ | HNOT EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HVALRELOPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HREFRELOPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HOBJRELOPERATOR
+ EXPRESSION_SIMP
+ | HTERMOPERATOR
+ EXPRESSION_SIMP %prec UNEAR
+ | EXPRESSION_SIMP
+ HTERMOPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HFACTOROPERATOR
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HPRIMARYOPERATOR
+ EXPRESSION_SIMP
+ | HBEGPAR
+ EXPRESSION HENDPAR
+ | HTEXTKONST
+ | HCHARACTERKONST
+ | HREALKONST
+ | HINTEGERKONST
+ | HBOOLEANKONST
+ | HNONE
+ | HIDENTIFIER
+ {}
+ MBEE_ARG_R_PT
+ | HTHIS HIDENTIFIER
+ | HNEW
+ HIDENTIFIER
+ ARG_R_PT
+ | EXPRESSION_SIMP
+ HDOT
+ EXPRESSION_SIMP
+ | EXPRESSION_SIMP
+ HQUA HIDENTIFIER
+ ;
+ARG_R_PT : /*EMPTY*/
+ | HBEGPAR
+ ARGUMENT_LIST HENDPAR
+ ;
+MBEE_ARG_R_PT : /*EMPTY*/
+ | HBEGPAR
+ ARGUMENT_LIST HENDPAR
+ ;
+ARGUMENT_LIST : EXPRESSION
+ | EXPRESSION
+ HPAREXPSEPARATOR
+ ARGUMENT_LIST
+ ;
+%%
+_ATEOF
+
+
+# Pass plenty of options, to exercise plenty of code, even if we
+# don't actually check the output. But SEGV is watching us, and
+# so might do dmalloc.
+$at_traceoff
+echo "existing.at:960: bison --verbose --defines input.y"
+echo existing.at:960 >$at_check_line_file
+( $at_traceon; bison --verbose --defines input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y: conflicts: 78 shift/reduce, 10 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "existing.at:960: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "existing.at:972: grep '^State.*conflicts:' input.output"
+echo existing.at:972 >$at_check_line_file
+( $at_traceon; grep '^State.*conflicts:' input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "State 64 conflicts: 14 shift/reduce
+State 164 conflicts: 1 shift/reduce
+State 201 conflicts: 33 shift/reduce, 4 reduce/reduce
+State 206 conflicts: 1 shift/reduce
+State 240 conflicts: 1 shift/reduce
+State 335 conflicts: 9 shift/reduce, 2 reduce/reduce
+State 356 conflicts: 1 shift/reduce
+State 360 conflicts: 9 shift/reduce, 2 reduce/reduce
+State 427 conflicts: 9 shift/reduce, 2 reduce/reduce
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "existing.at:972: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 112 ) # 112. existing.at:980: GNU pic Grammar
+ at_setup_line='existing.at:980'
+ at_desc='GNU pic Grammar'
+ $at_quiet $ECHO_N "112: GNU pic Grammar $ECHO_C"
+ at_xfail=no
+ (
+ echo "112. existing.at:980: testing ..."
+ $at_traceon
+
+
+# GNU pic, part of groff.
+
+# Bison once reported shift/reduce conflicts that it shouldn't have.
+
+cat >input.y <<'_ATEOF'
+%union {}
+
+%token LABEL
+%token VARIABLE
+%token NUMBER
+%token TEXT
+%token COMMAND_LINE
+%token DELIMITED
+%token ORDINAL
+%token TH
+%token LEFT_ARROW_HEAD
+%token RIGHT_ARROW_HEAD
+%token DOUBLE_ARROW_HEAD
+%token LAST
+%token UP
+%token DOWN
+%token LEFT
+%token RIGHT
+%token BOX
+%token CIRCLE
+%token ELLIPSE
+%token ARC
+%token LINE
+%token ARROW
+%token MOVE
+%token SPLINE
+%token HEIGHT
+%token RADIUS
+%token WIDTH
+%token DIAMETER
+%token FROM
+%token TO
+%token AT
+%token WITH
+%token BY
+%token THEN
+%token SOLID
+%token DOTTED
+%token DASHED
+%token CHOP
+%token SAME
+%token INVISIBLE
+%token LJUST
+%token RJUST
+%token ABOVE
+%token BELOW
+%token OF
+%token THE
+%token WAY
+%token BETWEEN
+%token AND
+%token HERE
+%token DOT_N
+%token DOT_E
+%token DOT_W
+%token DOT_S
+%token DOT_NE
+%token DOT_SE
+%token DOT_NW
+%token DOT_SW
+%token DOT_C
+%token DOT_START
+%token DOT_END
+%token DOT_X
+%token DOT_Y
+%token DOT_HT
+%token DOT_WID
+%token DOT_RAD
+%token SIN
+%token COS
+%token ATAN2
+%token LOG
+%token EXP
+%token SQRT
+%token K_MAX
+%token K_MIN
+%token INT
+%token RAND
+%token SRAND
+%token COPY
+%token THRU
+%token TOP
+%token BOTTOM
+%token UPPER
+%token LOWER
+%token SH
+%token PRINT
+%token CW
+%token CCW
+%token FOR
+%token DO
+%token IF
+%token ELSE
+%token ANDAND
+%token OROR
+%token NOTEQUAL
+%token EQUALEQUAL
+%token LESSEQUAL
+%token GREATEREQUAL
+%token LEFT_CORNER
+%token RIGHT_CORNER
+%token NORTH
+%token SOUTH
+%token EAST
+%token WEST
+%token CENTER
+%token END
+%token START
+%token RESET
+%token UNTIL
+%token PLOT
+%token THICKNESS
+%token FILL
+%token COLORED
+%token OUTLINED
+%token SHADED
+%token ALIGNED
+%token SPRINTF
+%token COMMAND
+
+%left '.'
+
+/* this ensures that plot 17 "%g" parses as (plot 17 "%g") */
+%left PLOT
+%left TEXT SPRINTF
+
+/* give text adjustments higher precedence than TEXT, so that
+box "foo" above ljust == box ("foo" above ljust)
+*/
+
+%left LJUST RJUST ABOVE BELOW
+
+%left LEFT RIGHT
+/* Give attributes that take an optional expression a higher
+precedence than left and right, so that eg `line chop left'
+parses properly. */
+%left CHOP SOLID DASHED DOTTED UP DOWN FILL COLORED OUTLINED
+%left LABEL
+
+%left VARIABLE NUMBER '(' SIN COS ATAN2 LOG EXP SQRT K_MAX K_MIN INT RAND SRAND LAST
+%left ORDINAL HERE '`'
+
+%left BOX CIRCLE ELLIPSE ARC LINE ARROW SPLINE '[' /* ] */
+
+/* these need to be lower than '-' */
+%left HEIGHT RADIUS WIDTH DIAMETER FROM TO AT THICKNESS
+
+/* these must have higher precedence than CHOP so that `label %prec CHOP'
+works */
+%left DOT_N DOT_E DOT_W DOT_S DOT_NE DOT_SE DOT_NW DOT_SW DOT_C
+%left DOT_START DOT_END TOP BOTTOM LEFT_CORNER RIGHT_CORNER
+%left UPPER LOWER NORTH SOUTH EAST WEST CENTER START END
+
+%left ','
+%left OROR
+%left ANDAND
+%left EQUALEQUAL NOTEQUAL
+%left '<' '>' LESSEQUAL GREATEREQUAL
+
+%left BETWEEN OF
+%left AND
+
+%left '+' '-'
+%left '*' '/' '%'
+%right '!'
+%right '^'
+
+%%
+
+top:
+ optional_separator
+ | element_list
+ ;
+
+element_list:
+ optional_separator middle_element_list optional_separator
+ ;
+
+middle_element_list:
+ element
+ | middle_element_list separator element
+ ;
+
+optional_separator:
+ /* empty */
+ | separator
+ ;
+
+separator:
+ ';'
+ | separator ';'
+ ;
+
+placeless_element:
+ VARIABLE '=' any_expr
+ | VARIABLE ':' '=' any_expr
+ | UP
+ | DOWN
+ | LEFT
+ | RIGHT
+ | COMMAND_LINE
+ | COMMAND print_args
+ | PRINT print_args
+ | SH
+ {}
+ DELIMITED
+ | COPY TEXT
+ | COPY TEXT THRU
+ {}
+ DELIMITED
+ {}
+ until
+ | COPY THRU
+ {}
+ DELIMITED
+ {}
+ until
+ | FOR VARIABLE '=' expr TO expr optional_by DO
+ {}
+ DELIMITED
+ | simple_if
+ | simple_if ELSE
+ {}
+ DELIMITED
+ | reset_variables
+ | RESET
+ ;
+
+reset_variables:
+ RESET VARIABLE
+ | reset_variables VARIABLE
+ | reset_variables ',' VARIABLE
+ ;
+
+print_args:
+ print_arg
+ | print_args print_arg
+ ;
+
+print_arg:
+ expr %prec ','
+ | text
+ | position %prec ','
+ ;
+
+simple_if:
+ IF any_expr THEN
+ {}
+ DELIMITED
+ ;
+
+until:
+ /* empty */
+ | UNTIL TEXT
+ ;
+
+any_expr:
+ expr
+ | text_expr
+ ;
+
+text_expr:
+ text EQUALEQUAL text
+ | text NOTEQUAL text
+ | text_expr ANDAND text_expr
+ | text_expr ANDAND expr
+ | expr ANDAND text_expr
+ | text_expr OROR text_expr
+ | text_expr OROR expr
+ | expr OROR text_expr
+ | '!' text_expr
+ ;
+
+optional_by:
+ /* empty */
+ | BY expr
+ | BY '*' expr
+ ;
+
+element:
+ object_spec
+ | LABEL ':' optional_separator element
+ | LABEL ':' optional_separator position_not_place
+ | LABEL ':' optional_separator place
+ | '{}'
+ {}
+ optional_element
+ | placeless_element
+ ;
+
+optional_element:
+ /* empty */
+ | element
+ ;
+
+object_spec:
+ BOX
+ | CIRCLE
+ | ELLIPSE
+ | ARC
+ | LINE
+ | ARROW
+ | MOVE
+ | SPLINE
+ | text %prec TEXT
+ | PLOT expr
+ | PLOT expr text
+ | '['
+ {}
+ element_list ']'
+ | object_spec HEIGHT expr
+ | object_spec RADIUS expr
+ | object_spec WIDTH expr
+ | object_spec DIAMETER expr
+ | object_spec expr %prec HEIGHT
+ | object_spec UP
+ | object_spec UP expr
+ | object_spec DOWN
+ | object_spec DOWN expr
+ | object_spec RIGHT
+ | object_spec RIGHT expr
+ | object_spec LEFT
+ | object_spec LEFT expr
+ | object_spec FROM position
+ | object_spec TO position
+ | object_spec AT position
+ | object_spec WITH path
+ | object_spec WITH position %prec ','
+ | object_spec BY expr_pair
+ | object_spec THEN
+ | object_spec SOLID
+ | object_spec DOTTED
+ | object_spec DOTTED expr
+ | object_spec DASHED
+ | object_spec DASHED expr
+ | object_spec FILL
+ | object_spec FILL expr
+ | object_spec SHADED text
+ | object_spec COLORED text
+ | object_spec OUTLINED text
+ | object_spec CHOP
+ | object_spec CHOP expr
+ | object_spec SAME
+ | object_spec INVISIBLE
+ | object_spec LEFT_ARROW_HEAD
+ | object_spec RIGHT_ARROW_HEAD
+ | object_spec DOUBLE_ARROW_HEAD
+ | object_spec CW
+ | object_spec CCW
+ | object_spec text %prec TEXT
+ | object_spec LJUST
+ | object_spec RJUST
+ | object_spec ABOVE
+ | object_spec BELOW
+ | object_spec THICKNESS expr
+ | object_spec ALIGNED
+ ;
+
+text:
+ TEXT
+ | SPRINTF '(' TEXT sprintf_args ')'
+ ;
+
+sprintf_args:
+ /* empty */
+ | sprintf_args ',' expr
+ ;
+
+position:
+ position_not_place
+ | place
+ ;
+
+position_not_place:
+ expr_pair
+ | position '+' expr_pair
+ | position '-' expr_pair
+ | '(' position ',' position ')'
+ | expr between position AND position
+ | expr '<' position ',' position '>'
+ ;
+
+between:
+ BETWEEN
+ | OF THE WAY BETWEEN
+ ;
+
+expr_pair:
+ expr ',' expr
+ | '(' expr_pair ')'
+ ;
+
+place:
+ /* line at A left == line (at A) left */
+ label %prec CHOP
+ | label corner
+ | corner label
+ | corner OF label
+ | HERE
+ ;
+
+label:
+ LABEL
+ | nth_primitive
+ | label '.' LABEL
+ ;
+
+ordinal:
+ ORDINAL
+ | '`' any_expr TH
+ ;
+
+optional_ordinal_last:
+ LAST
+ | ordinal LAST
+ ;
+
+nth_primitive:
+ ordinal object_type
+ | optional_ordinal_last object_type
+ ;
+
+object_type:
+ BOX
+ | CIRCLE
+ | ELLIPSE
+ | ARC
+ | LINE
+ | ARROW
+ | SPLINE
+ | '[' ']'
+ | TEXT
+ ;
+
+label_path:
+ '.' LABEL
+ | label_path '.' LABEL
+ ;
+
+relative_path:
+ corner %prec CHOP
+ /* give this a lower precedence than LEFT and RIGHT so that
+ [A: box] with .A left == [A: box] with (.A left) */
+ | label_path %prec TEXT
+ | label_path corner
+ ;
+
+path:
+ relative_path
+ | '(' relative_path ',' relative_path ')'
+ {}
+ /* The rest of these rules are a compatibility sop. */
+ | ORDINAL LAST object_type relative_path
+ | LAST object_type relative_path
+ | ORDINAL object_type relative_path
+ | LABEL relative_path
+ ;
+
+corner:
+ DOT_N
+ | DOT_E
+ | DOT_W
+ | DOT_S
+ | DOT_NE
+ | DOT_SE
+ | DOT_NW
+ | DOT_SW
+ | DOT_C
+ | DOT_START
+ | DOT_END
+ | TOP
+ | BOTTOM
+ | LEFT
+ | RIGHT
+ | UPPER LEFT
+ | LOWER LEFT
+ | UPPER RIGHT
+ | LOWER RIGHT
+ | LEFT_CORNER
+ | RIGHT_CORNER
+ | UPPER LEFT_CORNER
+ | LOWER LEFT_CORNER
+ | UPPER RIGHT_CORNER
+ | LOWER RIGHT_CORNER
+ | NORTH
+ | SOUTH
+ | EAST
+ | WEST
+ | CENTER
+ | START
+ | END
+ ;
+
+expr:
+ VARIABLE
+ | NUMBER
+ | place DOT_X
+ | place DOT_Y
+ | place DOT_HT
+ | place DOT_WID
+ | place DOT_RAD
+ | expr '+' expr
+ | expr '-' expr
+ | expr '*' expr
+ | expr '/' expr
+ | expr '%' expr
+ | expr '^' expr
+ | '-' expr %prec '!'
+ | '(' any_expr ')'
+ | SIN '(' any_expr ')'
+ | COS '(' any_expr ')'
+ | ATAN2 '(' any_expr ',' any_expr ')'
+ | LOG '(' any_expr ')'
+ | EXP '(' any_expr ')'
+ | SQRT '(' any_expr ')'
+ | K_MAX '(' any_expr ',' any_expr ')'
+ | K_MIN '(' any_expr ',' any_expr ')'
+ | INT '(' any_expr ')'
+ | RAND '(' any_expr ')'
+ | RAND '(' ')'
+ | SRAND '(' any_expr ')'
+ | expr '<' expr
+ | expr LESSEQUAL expr
+ | expr '>' expr
+ | expr GREATEREQUAL expr
+ | expr EQUALEQUAL expr
+ | expr NOTEQUAL expr
+ | expr ANDAND expr
+ | expr OROR expr
+ | '!' expr
+ ;
+_ATEOF
+
+
+# Pass plenty of options, to exercise plenty of code, even if we
+# don't actually check the output. But SEGV is watching us, and
+# so might do dmalloc.
+$at_traceoff
+echo "existing.at:1523: bison --verbose --defines input.y"
+echo existing.at:1523 >$at_check_line_file
+( $at_traceon; bison --verbose --defines input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "existing.at:1523: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-15 ) # Banner 15. regression.at:21
+ cat <<\_ATEOF
+
+Regression tests.
+
+_ATEOF
+ ;;
+
+ 113 ) # 113. regression.at:28: Trivial grammars
+ at_setup_line='regression.at:28'
+ at_desc='Trivial grammars'
+ $at_quiet $ECHO_N "113: Trivial grammars $ECHO_C"
+ at_xfail=no
+ (
+ echo "113. regression.at:28: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+void yyerror (char const *);
+int yylex (void);
+#define YYSTYPE int *
+%}
+
+%error-verbose
+
+%%
+
+program: 'x';
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:44: bison -o input.c input.y"
+echo regression.at:44 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:44: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:45: \$CC \$CFLAGS \$CPPFLAGS -o input.o -c input.c"
+echo regression.at:45 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o input.o -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:45: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:46: \$CC \$CFLAGS \$CPPFLAGS -o input.o -DYYDEBUG -c input.c"
+echo regression.at:46 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o input.o -DYYDEBUG -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:46: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 114 ) # 114. regression.at:57: Early token definitions
+ at_setup_line='regression.at:57'
+ at_desc='Early token definitions'
+ $at_quiet $ECHO_N "114: Early token definitions $ECHO_C"
+ at_xfail=no
+ (
+ echo "114. regression.at:57: testing ..."
+ $at_traceon
+
+
+# Found in GCJ: they expect the tokens to be defined before the user
+# prologue, so that they can use the token definitions in it.
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+
+%union
+{
+ int val;
+};
+%{
+#ifndef MY_TOKEN
+# error "MY_TOKEN not defined."
+#endif
+%}
+%token MY_TOKEN
+%%
+exp: MY_TOKEN;
+%%
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:83: bison -o input.c input.y"
+echo regression.at:83 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:83: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:84: \$CC \$CFLAGS \$CPPFLAGS -o input.o -c input.c"
+echo regression.at:84 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o input.o -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:84: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 115 ) # 115. regression.at:95: Braces parsing
+ at_setup_line='regression.at:95'
+ at_desc='Braces parsing'
+ $at_quiet $ECHO_N "115: Braces parsing $ECHO_C"
+ at_xfail=no
+ (
+ echo "115. regression.at:95: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+/* Bison used to swallow the character after `}'. */
+
+%%
+exp: { tests = {{{{{{{{{{}}}}}}}}}}; };
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:105: bison -v -o input.c input.y"
+echo regression.at:105 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:105: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "regression.at:107: grep 'tests = {{{{{{{{{{}}}}}}}}}};' input.c"
+echo regression.at:107 >$at_check_line_file
+( $at_traceon; grep 'tests = {{{{{{{{{{}}}}}}}}}};' input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:107: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 116 ) # 116. regression.at:117: Duplicate string
+ at_setup_line='regression.at:117'
+ at_desc='Duplicate string'
+ $at_quiet $ECHO_N "116: Duplicate string $ECHO_C"
+ at_xfail=no
+ (
+ echo "116. regression.at:117: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+/* `Bison -v' used to dump core when two tokens are defined with the same
+ string, as LE and GE below. */
+
+%token NUM
+%token LE "<="
+%token GE "<="
+
+%%
+exp: '(' exp ')' | NUM ;
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:134: bison -v -o input.c input.y"
+echo regression.at:134 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:6.8-14: warning: symbol \`\"<=\"' used more than once as a literal string
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:134: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 117 ) # 117. regression.at:143: Rule Line Numbers
+ at_setup_line='regression.at:143'
+ at_desc='Rule Line Numbers'
+ $at_quiet $ECHO_N "117: Rule Line Numbers $ECHO_C"
+ at_xfail=no
+ (
+ echo "117. regression.at:143: testing ..."
+ $at_traceon
+
+
+
+
+cat >input.y <<'_ATEOF'
+%%
+expr:
+'a'
+
+{
+
+}
+
+'b'
+
+{
+
+}
+
+|
+
+
+{
+
+
+}
+
+'c'
+
+{
+
+};
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:177: bison -o input.c -v input.y"
+echo regression.at:177 >$at_check_line_file
+( $at_traceon; bison -o input.c -v input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:177: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check the contents of the report.
+$at_traceoff
+echo "regression.at:276: cat input.output"
+echo regression.at:276 >$at_check_line_file
+( $at_traceon; cat input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Grammar
+
+ 0 \$accept: expr \$end
+
+ 1 @1: /* empty */
+
+ 2 expr: 'a' @1 'b'
+
+ 3 @2: /* empty */
+
+ 4 expr: @2 'c'
+
+
+Terminals, with rules where they appear
+
+\$end (0) 0
+'a' (97) 2
+'b' (98) 2
+'c' (99) 4
+error (256)
+
+
+Nonterminals, with rules where they appear
+
+\$accept (6)
+ on left: 0
+expr (7)
+ on left: 2 4, on right: 0
+@1 (8)
+ on left: 1, on right: 2
+@2 (9)
+ on left: 3, on right: 4
+
+
+state 0
+
+ 0 \$accept: . expr \$end
+
+ 'a' shift, and go to state 1
+
+ \$default reduce using rule 3 (@2)
+
+ expr go to state 2
+ @2 go to state 3
+
+
+state 1
+
+ 2 expr: 'a' . @1 'b'
+
+ \$default reduce using rule 1 (@1)
+
+ @1 go to state 4
+
+
+state 2
+
+ 0 \$accept: expr . \$end
+
+ \$end shift, and go to state 5
+
+
+state 3
+
+ 4 expr: @2 . 'c'
+
+ 'c' shift, and go to state 6
+
+
+state 4
+
+ 2 expr: 'a' @1 . 'b'
+
+ 'b' shift, and go to state 7
+
+
+state 5
+
+ 0 \$accept: expr \$end .
+
+ \$default accept
+
+
+state 6
+
+ 4 expr: @2 'c' .
+
+ \$default reduce using rule 4 (expr)
+
+
+state 7
+
+ 2 expr: 'a' @1 'b' .
+
+ \$default reduce using rule 2 (expr)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:276: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 118 ) # 118. regression.at:287: Mixing %token styles
+ at_setup_line='regression.at:287'
+ at_desc='Mixing %token styles'
+ $at_quiet $ECHO_N "118: Mixing %token styles $ECHO_C"
+ at_xfail=no
+ (
+ echo "118. regression.at:287: testing ..."
+ $at_traceon
+
+
+# Taken from the documentation.
+cat >input.y <<'_ATEOF'
+%token <operator> OR "||"
+%token <operator> LE 134 "<="
+%left OR "<="
+%%
+exp: ;
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:299: bison -v -o input.c input.y"
+echo regression.at:299 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:299: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 119 ) # 119. regression.at:310: Invalid inputs
+ at_setup_line='regression.at:310'
+ at_desc='Invalid inputs'
+ $at_quiet $ECHO_N "119: Invalid inputs $ECHO_C"
+ at_xfail=no
+ (
+ echo "119. regression.at:310: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%%
+?
+default: 'a' }
+%&
+%a-does-not-exist
+%-
+%{
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:331: bison input.y"
+echo regression.at:331 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:2.1: invalid character: \`?'
+input.y:3.14: invalid character: \`}'
+input.y:4.1: invalid character: \`%'
+input.y:4.2: invalid character: \`&'
+input.y:5.1-17: invalid directive: \`%a-does-not-exist'
+input.y:6.1: invalid character: \`%'
+input.y:6.2: invalid character: \`-'
+input.y:7.1-8.0: missing \`%}' at end of file
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:331: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 120 ) # 120. regression.at:336: Invalid inputs with {}
+ at_setup_line='regression.at:336'
+ at_desc='Invalid inputs with {}'
+ $at_quiet $ECHO_N "120: Invalid inputs with {} $ECHO_C"
+ at_xfail=no
+ (
+ echo "120. regression.at:336: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+
+%destructor
+%initial-action
+%lex-param
+%parse-param
+%printer
+%union
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:352: bison input.y"
+echo regression.at:352 >$at_check_line_file
+( $at_traceon; bison input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "input.y:3.1: missing \`{' in \"%destructor {...}\"
+input.y:4.1: missing \`{' in \"%initial-action {...}\"
+input.y:4.1: syntax error, unexpected %initial-action {...}, expecting string or identifier
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:352: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 121 ) # 121. regression.at:363: Token definitions
+ at_setup_line='regression.at:363'
+ at_desc='Token definitions'
+ $at_quiet $ECHO_N "121: Token definitions $ECHO_C"
+ at_xfail=no
+ (
+ echo "121. regression.at:363: testing ..."
+ $at_traceon
+
+
+# Bison managed, when fed with `%token 'f' "f"' to #define 'f'!
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+#include <stdio.h>
+void yyerror (const char *s);
+int yylex (void);
+%}
+%error-verbose
+%token MYEOF 0 "end of file"
+%token 'a' "a"
+%token B_TOKEN "b"
+%token C_TOKEN 'c'
+%token 'd' D_TOKEN
+%token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+%%
+exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
+%%
+void
+yyerror (char const *s)
+{
+ fprintf (stderr, "%s\n", s);
+}
+
+int
+yylex (void)
+{
+ return SPECIAL;
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:401: bison -o input.c input.y"
+echo regression.at:401 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:401: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:402: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o input input.c \$LIBS"
+echo regression.at:402 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:402: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+cat >experr <<'_ATEOF'
+syntax error, unexpected "\\'?\"\a\b\f\n\r\t\v\001\201\001\201?\?!", expecting a
+_ATEOF
+
+$at_traceoff
+echo "regression.at:406: \$PREPARSER ./input"
+echo regression.at:406 >$at_check_line_file
+( $at_traceon; $PREPARSER ./input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff experr $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:406: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 122 ) # 122. regression.at:416: Characters Escapes
+ at_setup_line='regression.at:416'
+ at_desc='Characters Escapes'
+ $at_quiet $ECHO_N "122: Characters Escapes $ECHO_C"
+ at_xfail=no
+ (
+ echo "122. regression.at:416: testing ..."
+ $at_traceon
+
+
+cat >input.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+void yyerror (const char *s);
+int yylex (void);
+%}
+%%
+exp:
+ '\'' "\'"
+| '\"' "\""
+| '"' "'"
+;
+_ATEOF
+
+
+# Pacify font-lock-mode: "
+
+$at_traceoff
+echo "regression.at:432: bison -o input.c input.y"
+echo regression.at:432 >$at_check_line_file
+( $at_traceon; bison -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:432: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:433: \$CC \$CFLAGS \$CPPFLAGS -o input.o -c input.c"
+echo regression.at:433 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS -o input.o -c input.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:433: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 123 ) # 123. regression.at:447: Web2c Report
+ at_setup_line='regression.at:447'
+ at_desc='Web2c Report'
+ $at_quiet $ECHO_N "123: Web2c Report $ECHO_C"
+ at_xfail=no
+ (
+ echo "123. regression.at:447: testing ..."
+ $at_traceon
+
+
+
+
+cat >input.y <<'_ATEOF'
+%token undef_id_tok const_id_tok
+
+%start CONST_DEC_PART
+
+%%
+CONST_DEC_PART:
+ CONST_DEC_LIST
+ ;
+
+CONST_DEC_LIST:
+ CONST_DEC
+ | CONST_DEC_LIST CONST_DEC
+ ;
+
+CONST_DEC:
+ { } undef_id_tok '=' const_id_tok ';'
+ ;
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:472: bison -v input.y"
+echo regression.at:472 >$at_check_line_file
+( $at_traceon; bison -v input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:472: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:597: cat input.output"
+echo regression.at:597 >$at_check_line_file
+( $at_traceon; cat input.output ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Grammar
+
+ 0 \$accept: CONST_DEC_PART \$end
+
+ 1 CONST_DEC_PART: CONST_DEC_LIST
+
+ 2 CONST_DEC_LIST: CONST_DEC
+ 3 | CONST_DEC_LIST CONST_DEC
+
+ 4 @1: /* empty */
+
+ 5 CONST_DEC: @1 undef_id_tok '=' const_id_tok ';'
+
+
+Terminals, with rules where they appear
+
+\$end (0) 0
+';' (59) 5
+'=' (61) 5
+error (256)
+undef_id_tok (258) 5
+const_id_tok (259) 5
+
+
+Nonterminals, with rules where they appear
+
+\$accept (7)
+ on left: 0
+CONST_DEC_PART (8)
+ on left: 1, on right: 0
+CONST_DEC_LIST (9)
+ on left: 2 3, on right: 1 3
+CONST_DEC (10)
+ on left: 5, on right: 2 3
+@1 (11)
+ on left: 4, on right: 5
+
+
+state 0
+
+ 0 \$accept: . CONST_DEC_PART \$end
+
+ \$default reduce using rule 4 (@1)
+
+ CONST_DEC_PART go to state 1
+ CONST_DEC_LIST go to state 2
+ CONST_DEC go to state 3
+ @1 go to state 4
+
+
+state 1
+
+ 0 \$accept: CONST_DEC_PART . \$end
+
+ \$end shift, and go to state 5
+
+
+state 2
+
+ 1 CONST_DEC_PART: CONST_DEC_LIST .
+ 3 CONST_DEC_LIST: CONST_DEC_LIST . CONST_DEC
+
+ undef_id_tok reduce using rule 4 (@1)
+ \$default reduce using rule 1 (CONST_DEC_PART)
+
+ CONST_DEC go to state 6
+ @1 go to state 4
+
+
+state 3
+
+ 2 CONST_DEC_LIST: CONST_DEC .
+
+ \$default reduce using rule 2 (CONST_DEC_LIST)
+
+
+state 4
+
+ 5 CONST_DEC: @1 . undef_id_tok '=' const_id_tok ';'
+
+ undef_id_tok shift, and go to state 7
+
+
+state 5
+
+ 0 \$accept: CONST_DEC_PART \$end .
+
+ \$default accept
+
+
+state 6
+
+ 3 CONST_DEC_LIST: CONST_DEC_LIST CONST_DEC .
+
+ \$default reduce using rule 3 (CONST_DEC_LIST)
+
+
+state 7
+
+ 5 CONST_DEC: @1 undef_id_tok . '=' const_id_tok ';'
+
+ '=' shift, and go to state 8
+
+
+state 8
+
+ 5 CONST_DEC: @1 undef_id_tok '=' . const_id_tok ';'
+
+ const_id_tok shift, and go to state 9
+
+
+state 9
+
+ 5 CONST_DEC: @1 undef_id_tok '=' const_id_tok . ';'
+
+ ';' shift, and go to state 10
+
+
+state 10
+
+ 5 CONST_DEC: @1 undef_id_tok '=' const_id_tok ';' .
+
+ \$default reduce using rule 5 (CONST_DEC)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:597: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 124 ) # 124. regression.at:624: Web2c Actions
+ at_setup_line='regression.at:624'
+ at_desc='Web2c Actions'
+ $at_quiet $ECHO_N "124: Web2c Actions $ECHO_C"
+ at_xfail=no
+ (
+ echo "124. regression.at:624: testing ..."
+ $at_traceon
+
+
+
+
+cat >input.y <<'_ATEOF'
+%%
+statement: struct_stat;
+struct_stat: /* empty. */ | if else;
+if: "if" "const" "then" statement;
+else: "else" statement;
+%%
+_ATEOF
+
+
+$at_traceoff
+echo "regression.at:637: bison -v -o input.c input.y"
+echo regression.at:637 >$at_check_line_file
+( $at_traceon; bison -v -o input.c input.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:637: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+# Check only the tables. We don't use --no-parser, because it is
+# still to be implemented in the experimental branch of Bison.
+sed -n 's/ *$//;/^static const.*\[\] =/,/^}/p' input.c >tables.c
+
+$at_traceoff
+echo "regression.at:735: cat tables.c"
+echo regression.at:735 >$at_check_line_file
+( $at_traceon; cat tables.c ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6
+};
+static const yytype_uint8 yyprhs[] =
+{
+ 0, 0, 3, 5, 6, 9, 14
+};
+static const yytype_int8 yyrhs[] =
+{
+ 8, 0, -1, 9, -1, -1, 10, 11, -1, 3,
+ 4, 5, 8, -1, 6, 8, -1
+};
+static const yytype_uint8 yyrline[] =
+{
+ 0, 2, 2, 3, 3, 4, 5
+};
+static const char *const yytname[] =
+{
+ \"\$end\", \"error\", \"\$undefined\", \"\\\"if\\\"\", \"\\\"const\\\"\", \"\\\"then\\\"\",
+ \"\\\"else\\\"\", \"\$accept\", \"statement\", \"struct_stat\", \"if\", \"else\", 0
+};
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261
+};
+static const yytype_uint8 yyr1[] =
+{
+ 0, 7, 8, 9, 9, 10, 11
+};
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 1, 0, 2, 4, 2
+};
+static const yytype_uint8 yydefact[] =
+{
+ 3, 0, 0, 2, 0, 0, 1, 3, 4, 3,
+ 6, 5
+};
+static const yytype_int8 yydefgoto[] =
+{
+ -1, 2, 3, 4, 8
+};
+static const yytype_int8 yypact[] =
+{
+ -2, -1, 4, -8, 0, 2, -8, -2, -8, -2,
+ -8, -8
+};
+static const yytype_int8 yypgoto[] =
+{
+ -8, -7, -8, -8, -8
+};
+static const yytype_uint8 yytable[] =
+{
+ 10, 1, 11, 5, 6, 0, 7, 9
+};
+static const yytype_int8 yycheck[] =
+{
+ 7, 3, 9, 4, 0, -1, 6, 5
+};
+static const yytype_uint8 yystos[] =
+{
+ 0, 3, 8, 9, 10, 4, 0, 6, 11, 5,
+ 8, 8
+};
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:735: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 125 ) # 125. regression.at:866: Dancer
+ at_setup_line='regression.at:866'
+ at_desc='Dancer '
+ $at_quiet $ECHO_N "125: Dancer $ECHO_C"
+ at_xfail=no
+ (
+ echo "125. regression.at:866: testing ..."
+ $at_traceon
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >dancer.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+static int yylex (void);
+#include <stdio.h>
+static void yyerror (const char *);
+%}
+
+%token ARROW INVALID NUMBER STRING DATA
+%defines
+%verbose
+%error-verbose
+/* Grammar follows */
+%%
+line: header body
+ ;
+
+header: '<' from ARROW to '>' type ':'
+ | '<' ARROW to '>' type ':'
+ | ARROW to type ':'
+ | type ':'
+ | '<' '>'
+ ;
+
+from: DATA
+ | STRING
+ | INVALID
+ ;
+
+to: DATA
+ | STRING
+ | INVALID
+ ;
+
+type: DATA
+ | STRING
+ | INVALID
+ ;
+
+body: /* empty */
+ | body member
+ ;
+
+member: STRING
+ | DATA
+ | '+' NUMBER
+ | '-' NUMBER
+ | NUMBER
+ | INVALID
+ ;
+%%
+static void
+yyerror (const char *s)
+{
+ fprintf (stderr, "%s\n", s);
+}
+
+static int
+yylex (void)
+{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ ':', -1
+ };
+
+ return tokens[toknum++];
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:866: bison -o dancer.c dancer.y"
+echo regression.at:866 >$at_check_line_file
+( $at_traceon; bison -o dancer.c dancer.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:866: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:866: bison -o dancer.c dancer.y"
+echo regression.at:866 >$at_check_line_file
+( $at_traceon; bison -o dancer.c dancer.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:866: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "regression.at:866: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o dancer dancer.c \$LIBS"
+echo regression.at:866 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o dancer dancer.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:866: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:866: \$PREPARSER ./dancer"
+echo regression.at:866 >$at_check_line_file
+( $at_traceon; $PREPARSER ./dancer ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected ':'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:866: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 126 ) # 126. regression.at:867: Dancer %glr-parser
+ at_setup_line='regression.at:867'
+ at_desc='Dancer %glr-parser'
+ $at_quiet $ECHO_N "126: Dancer %glr-parser $ECHO_C"
+ at_xfail=no
+ (
+ echo "126. regression.at:867: testing ..."
+ $at_traceon
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >dancer.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+static int yylex (void);
+#include <stdio.h>
+static void yyerror (const char *);
+%}
+%glr-parser
+%token ARROW INVALID NUMBER STRING DATA
+%defines
+%verbose
+%error-verbose
+/* Grammar follows */
+%%
+line: header body
+ ;
+
+header: '<' from ARROW to '>' type ':'
+ | '<' ARROW to '>' type ':'
+ | ARROW to type ':'
+ | type ':'
+ | '<' '>'
+ ;
+
+from: DATA
+ | STRING
+ | INVALID
+ ;
+
+to: DATA
+ | STRING
+ | INVALID
+ ;
+
+type: DATA
+ | STRING
+ | INVALID
+ ;
+
+body: /* empty */
+ | body member
+ ;
+
+member: STRING
+ | DATA
+ | '+' NUMBER
+ | '-' NUMBER
+ | NUMBER
+ | INVALID
+ ;
+%%
+static void
+yyerror (const char *s)
+{
+ fprintf (stderr, "%s\n", s);
+}
+
+static int
+yylex (void)
+{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ ':', -1
+ };
+
+ return tokens[toknum++];
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:867: bison -o dancer.c dancer.y"
+echo regression.at:867 >$at_check_line_file
+( $at_traceon; bison -o dancer.c dancer.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:867: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:867: bison -o dancer.c dancer.y"
+echo regression.at:867 >$at_check_line_file
+( $at_traceon; bison -o dancer.c dancer.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:867: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "regression.at:867: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o dancer dancer.c \$LIBS"
+echo regression.at:867 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o dancer dancer.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:867: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:867: \$PREPARSER ./dancer"
+echo regression.at:867 >$at_check_line_file
+( $at_traceon; $PREPARSER ./dancer ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected ':'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:867: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 127 ) # 127. regression.at:868: Dancer %skeleton "lalr1.cc"
+ at_setup_line='regression.at:868'
+ at_desc='Dancer %skeleton "lalr1.cc"'
+ $at_quiet $ECHO_N "127: Dancer %skeleton "lalr1.cc" $ECHO_C"
+ at_xfail=no
+ (
+ echo "127. regression.at:868: testing ..."
+ $at_traceon
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >dancer.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+static int yylex (int *);
+
+%}
+%skeleton "lalr1.cc"
+%token ARROW INVALID NUMBER STRING DATA
+%defines
+%verbose
+%error-verbose
+/* Grammar follows */
+%%
+line: header body
+ ;
+
+header: '<' from ARROW to '>' type ':'
+ | '<' ARROW to '>' type ':'
+ | ARROW to type ':'
+ | type ':'
+ | '<' '>'
+ ;
+
+from: DATA
+ | STRING
+ | INVALID
+ ;
+
+to: DATA
+ | STRING
+ | INVALID
+ ;
+
+type: DATA
+ | STRING
+ | INVALID
+ ;
+
+body: /* empty */
+ | body member
+ ;
+
+member: STRING
+ | DATA
+ | '+' NUMBER
+ | '-' NUMBER
+ | NUMBER
+ | INVALID
+ ;
+%%
+/* A C++ error reporting function. */
+void
+yy::parser::error (const location&, const std::string& m)
+{
+ std::cerr << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ yy::parser parser;
+ parser.set_debug_level (!!YYDEBUG);
+ return parser.parse ();
+}
+
+
+static int
+yylex (int *lval)
+{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ ':', -1
+ };
+ *lval = 0; /* Pacify GCC. */
+ return tokens[toknum++];
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:868: bison -o dancer.c dancer.y"
+echo regression.at:868 >$at_check_line_file
+( $at_traceon; bison -o dancer.c dancer.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:868: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:868: bison -o dancer.cc dancer.y"
+echo regression.at:868 >$at_check_line_file
+( $at_traceon; bison -o dancer.cc dancer.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:868: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "regression.at:868: \$BISON_CXX_WORKS"
+echo regression.at:868 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:868: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:868: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o dancer dancer.cc \$LIBS"
+echo regression.at:868 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o dancer dancer.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:868: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:868: \$PREPARSER ./dancer"
+echo regression.at:868 >$at_check_line_file
+( $at_traceon; $PREPARSER ./dancer ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected ':'
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:868: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 128 ) # 128. regression.at:963: Expecting two tokens
+ at_setup_line='regression.at:963'
+ at_desc='Expecting two tokens '
+ $at_quiet $ECHO_N "128: Expecting two tokens $ECHO_C"
+ at_xfail=no
+ (
+ echo "128. regression.at:963: testing ..."
+ $at_traceon
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >expect2.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+static int yylex (void);
+#include <stdio.h>
+static void yyerror (const char *);
+%}
+
+%defines
+%error-verbose
+%token A 1000
+%token B
+
+%%
+program: /* empty */
+ | program e ';'
+ | program error ';';
+
+e: e '+' t | t;
+t: A | B;
+
+%%
+static void
+yyerror (const char *s)
+{
+ fprintf (stderr, "%s\n", s);
+}
+
+static int
+yylex (void)
+{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ 1000, '+', '+', -1
+ };
+
+ return tokens[toknum++];
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:963: bison -o expect2.c expect2.y"
+echo regression.at:963 >$at_check_line_file
+( $at_traceon; bison -o expect2.c expect2.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:963: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:963: bison -o expect2.c expect2.y"
+echo regression.at:963 >$at_check_line_file
+( $at_traceon; bison -o expect2.c expect2.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:963: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "regression.at:963: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o expect2 expect2.c \$LIBS"
+echo regression.at:963 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o expect2 expect2.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:963: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:963: \$PREPARSER ./expect2"
+echo regression.at:963 >$at_check_line_file
+( $at_traceon; $PREPARSER ./expect2 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected '+', expecting A or B
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:963: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 129 ) # 129. regression.at:964: Expecting two tokens %glr-parser
+ at_setup_line='regression.at:964'
+ at_desc='Expecting two tokens %glr-parser'
+ $at_quiet $ECHO_N "129: Expecting two tokens %glr-parser $ECHO_C"
+ at_xfail=no
+ (
+ echo "129. regression.at:964: testing ..."
+ $at_traceon
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >expect2.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+static int yylex (void);
+#include <stdio.h>
+static void yyerror (const char *);
+%}
+%glr-parser
+%defines
+%error-verbose
+%token A 1000
+%token B
+
+%%
+program: /* empty */
+ | program e ';'
+ | program error ';';
+
+e: e '+' t | t;
+t: A | B;
+
+%%
+static void
+yyerror (const char *s)
+{
+ fprintf (stderr, "%s\n", s);
+}
+
+static int
+yylex (void)
+{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ 1000, '+', '+', -1
+ };
+
+ return tokens[toknum++];
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:964: bison -o expect2.c expect2.y"
+echo regression.at:964 >$at_check_line_file
+( $at_traceon; bison -o expect2.c expect2.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:964: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:964: bison -o expect2.c expect2.y"
+echo regression.at:964 >$at_check_line_file
+( $at_traceon; bison -o expect2.c expect2.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:964: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+echo "regression.at:964: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o expect2 expect2.c \$LIBS"
+echo regression.at:964 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o expect2 expect2.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:964: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:964: \$PREPARSER ./expect2"
+echo regression.at:964 >$at_check_line_file
+( $at_traceon; $PREPARSER ./expect2 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected '+', expecting A or B
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:964: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 130 ) # 130. regression.at:965: Expecting two tokens %skeleton "lalr1.cc"
+ at_setup_line='regression.at:965'
+ at_desc='Expecting two tokens %skeleton "lalr1.cc"'
+ $at_quiet $ECHO_N "130: Expecting two tokens %skeleton "lalr1.cc" $ECHO_C"
+ at_xfail=no
+ (
+ echo "130. regression.at:965: testing ..."
+ $at_traceon
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+cat >expect2.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+%{
+static int yylex (int *);
+
+%}
+%skeleton "lalr1.cc"
+%defines
+%error-verbose
+%token A 1000
+%token B
+
+%%
+program: /* empty */
+ | program e ';'
+ | program error ';';
+
+e: e '+' t | t;
+t: A | B;
+
+%%
+/* A C++ error reporting function. */
+void
+yy::parser::error (const location&, const std::string& m)
+{
+ std::cerr << m << std::endl;
+}
+
+int
+yyparse ()
+{
+ yy::parser parser;
+ return parser.parse ();
+}
+
+
+static int
+yylex (int *lval)
+{
+ static int toknum = 0;
+ static int tokens[] =
+ {
+ 1000, '+', '+', -1
+ };
+ *lval = 0; /* Pacify GCC. */
+ return tokens[toknum++];
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "regression.at:965: bison -o expect2.c expect2.y"
+echo regression.at:965 >$at_check_line_file
+( $at_traceon; bison -o expect2.c expect2.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:965: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:965: bison -o expect2.cc expect2.y"
+echo regression.at:965 >$at_check_line_file
+( $at_traceon; bison -o expect2.cc expect2.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:965: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "regression.at:965: \$BISON_CXX_WORKS"
+echo regression.at:965 >$at_check_line_file
+( $at_traceon; $BISON_CXX_WORKS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:965: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:965: \$CXX \$CXXFLAGS \$CPPFLAGS \$LDFLAGS -o expect2 expect2.cc \$LIBS"
+echo regression.at:965 >$at_check_line_file
+( $at_traceon; $CXX $CXXFLAGS $CPPFLAGS $LDFLAGS -o expect2 expect2.cc $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "regression.at:965: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "regression.at:965: \$PREPARSER ./expect2"
+echo regression.at:965 >$at_check_line_file
+( $at_traceon; $PREPARSER ./expect2 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected '+', expecting A or B
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 1) ;;
+ *) echo "regression.at:965: exit code was $at_status, expected 1"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-16 ) # Banner 16. c++.at:19
+ cat <<\_ATEOF
+
+C++ Features.
+
+_ATEOF
+ ;;
+
+ 131 ) # 131. c++.at:102: Doxygen Public Documentation
+ at_setup_line='c++.at:102'
+ at_desc='Doxygen Public Documentation'
+ $at_quiet $ECHO_N "131: Doxygen Public Documentation $ECHO_C"
+ at_xfail=no
+ (
+ echo "131. c++.at:102: testing ..."
+ $at_traceon
+
+
+cat >input.yy <<'_ATEOF'
+%skeleton "lalr1.cc"
+%locations
+%debug
+%defines
+%%
+exp:;
+%%
+yy::parser::error (const location& l, const std::string& m)
+{
+ std::cerr << l << s << std::endl;
+}
+_ATEOF
+
+
+$at_traceoff
+echo "c++.at:102: bison -o input.cc input.yy"
+echo c++.at:102 >$at_check_line_file
+( $at_traceon; bison -o input.cc input.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "c++.at:102: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >Doxyfile <<'_ATEOF'
+# The PROJECT_NAME tag is a single word (or a sequence of words
+# surrounded by quotes) that should identify the project.
+PROJECT_NAME = "Bison C++ Parser"
+
+# The QUIET tag can be used to turn on/off the messages that are
+# generated by doxygen. Possible values are YES and NO. If left blank
+# NO is used.
+QUIET = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages
+# that are generated by doxygen. Possible values are YES and NO. If
+# left blank NO is used.
+WARNINGS = YES
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then
+# this flag will automatically be disabled.
+WARN_IF_UNDOCUMENTED = YES
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings
+# for potential errors in the documentation, such as not documenting
+# some parameters in a documented function, or documenting parameters
+# that don't exist or using markup commands wrongly.
+WARN_IF_DOC_ERROR = YES
+# The WARN_FORMAT tag determines the format of the warning messages
+# that doxygen can produce. The string should contain the $file,
+# $line, and $text tags, which will be replaced by the file and line
+# number from which the warning originated and the warning text.
+WARN_FORMAT = "$file:$line: $text"
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all
+# entities in documentation are documented, even if no documentation
+# was available. Private class members and static file members will
+# be hidden unless the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set
+# to YES
+EXTRACT_ALL = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a
+# class will be included in the documentation.
+EXTRACT_PRIVATE = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file
+# will be included in the documentation.
+EXTRACT_STATIC = NO
+_ATEOF
+
+
+$at_traceoff
+echo "c++.at:102: doxygen --version || exit 77"
+echo c++.at:102 >$at_check_line_file
+( $at_traceon; doxygen --version || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "c++.at:102: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "c++.at:102: doxygen"
+echo c++.at:102 >$at_check_line_file
+( $at_traceon; doxygen ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "c++.at:102: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 132 ) # 132. c++.at:103: Doxygen Private Documentation
+ at_setup_line='c++.at:103'
+ at_desc='Doxygen Private Documentation'
+ $at_quiet $ECHO_N "132: Doxygen Private Documentation $ECHO_C"
+ at_xfail=no
+ (
+ echo "132. c++.at:103: testing ..."
+ $at_traceon
+
+
+cat >input.yy <<'_ATEOF'
+%skeleton "lalr1.cc"
+%locations
+%debug
+%defines
+%%
+exp:;
+%%
+yy::parser::error (const location& l, const std::string& m)
+{
+ std::cerr << l << s << std::endl;
+}
+_ATEOF
+
+
+$at_traceoff
+echo "c++.at:103: bison -o input.cc input.yy"
+echo c++.at:103 >$at_check_line_file
+( $at_traceon; bison -o input.cc input.yy ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "c++.at:103: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+cat >Doxyfile <<'_ATEOF'
+# The PROJECT_NAME tag is a single word (or a sequence of words
+# surrounded by quotes) that should identify the project.
+PROJECT_NAME = "Bison C++ Parser"
+
+# The QUIET tag can be used to turn on/off the messages that are
+# generated by doxygen. Possible values are YES and NO. If left blank
+# NO is used.
+QUIET = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages
+# that are generated by doxygen. Possible values are YES and NO. If
+# left blank NO is used.
+WARNINGS = YES
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then
+# this flag will automatically be disabled.
+WARN_IF_UNDOCUMENTED = YES
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings
+# for potential errors in the documentation, such as not documenting
+# some parameters in a documented function, or documenting parameters
+# that don't exist or using markup commands wrongly.
+WARN_IF_DOC_ERROR = YES
+# The WARN_FORMAT tag determines the format of the warning messages
+# that doxygen can produce. The string should contain the $file,
+# $line, and $text tags, which will be replaced by the file and line
+# number from which the warning originated and the warning text.
+WARN_FORMAT = "$file:$line: $text"
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all
+# entities in documentation are documented, even if no documentation
+# was available. Private class members and static file members will
+# be hidden unless the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set
+# to YES
+EXTRACT_ALL = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a
+# class will be included in the documentation.
+EXTRACT_PRIVATE = YES
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file
+# will be included in the documentation.
+EXTRACT_STATIC = YES
+_ATEOF
+
+
+$at_traceoff
+echo "c++.at:103: doxygen --version || exit 77"
+echo c++.at:103 >$at_check_line_file
+( $at_traceon; doxygen --version || exit 77 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "c++.at:103: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "c++.at:103: doxygen"
+echo c++.at:103 >$at_check_line_file
+( $at_traceon; doxygen ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "c++.at:103: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-17 ) # Banner 17. cxx-type.at:19
+ cat <<\_ATEOF
+
+C++ Type Syntax (GLR).
+
+_ATEOF
+ ;;
+
+ 133 ) # 133. cxx-type.at:412: GLR: Resolve ambiguity, impure, no locations
+ at_setup_line='cxx-type.at:412'
+ at_desc='GLR: Resolve ambiguity, impure, no locations'
+ $at_quiet $ECHO_N "133: GLR: Resolve ambiguity, impure, no locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "133. cxx-type.at:412: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %dprec 1 { $$ = $1; }
+ | decl %dprec 2
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:414: bison -o types.c types.y"
+echo cxx-type.at:414 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:414: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:414: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:414 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:414: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:416: \$PREPARSER ./types test-input"
+echo cxx-type.at:416 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "+(z,q)
+<declare>(T,x)
+<init-declare>(T,x,y)
+=(x,y)
++(<cast>(x,T),y)
+<declare>(T,x)
+<init-declare>(T,y,+(z,q))
+<error>
++(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:416: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 134 ) # 134. cxx-type.at:419: GLR: Resolve ambiguity, impure, locations
+ at_setup_line='cxx-type.at:419'
+ at_desc='GLR: Resolve ambiguity, impure, locations'
+ $at_quiet $ECHO_N "134: GLR: Resolve ambiguity, impure, locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "134. cxx-type.at:419: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+%locations
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ printf ("%d.%d-%d.%d: ",
+ @2.first_line, @2.first_column,
+ @2.last_line, @2.last_column);
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %dprec 1 { $$ = $1; }
+ | decl %dprec 2
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:420: bison -o types.c types.y"
+echo cxx-type.at:420 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:420: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:420: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:420 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:420: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:422: \$PREPARSER ./types test-input"
+echo cxx-type.at:422 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "3.0-3.5: +(z,q)
+5.0-5.3: <declare>(T,x)
+7.0-7.7: <init-declare>(T,x,y)
+9.0-9.5: =(x,y)
+11.0-11.9: +(<cast>(x,T),y)
+13.0-13.5: <declare>(T,x)
+15.0-15.13: <init-declare>(T,y,+(z,q))
+17.0-17.15: <error>
+19.0-19.5: +(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:422: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 135 ) # 135. cxx-type.at:425: GLR: Resolve ambiguity, pure, no locations
+ at_setup_line='cxx-type.at:425'
+ at_desc='GLR: Resolve ambiguity, pure, no locations'
+ $at_quiet $ECHO_N "135: GLR: Resolve ambiguity, pure, no locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "135. cxx-type.at:425: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+%pure-parser
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %dprec 1 { $$ = $1; }
+ | decl %dprec 2
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:427: bison -o types.c types.y"
+echo cxx-type.at:427 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:427: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:427: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:427 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:427: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:429: \$PREPARSER ./types test-input"
+echo cxx-type.at:429 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "+(z,q)
+<declare>(T,x)
+<init-declare>(T,x,y)
+=(x,y)
++(<cast>(x,T),y)
+<declare>(T,x)
+<init-declare>(T,y,+(z,q))
+<error>
++(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:429: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 136 ) # 136. cxx-type.at:432: GLR: Resolve ambiguity, pure, locations
+ at_setup_line='cxx-type.at:432'
+ at_desc='GLR: Resolve ambiguity, pure, locations'
+ $at_quiet $ECHO_N "136: GLR: Resolve ambiguity, pure, locations $ECHO_C"
+ at_xfail=no
+ (
+ echo "136. cxx-type.at:432: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+%pure-parser %locations
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ printf ("%d.%d-%d.%d: ",
+ @2.first_line, @2.first_column,
+ @2.last_line, @2.last_column);
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %dprec 1 { $$ = $1; }
+ | decl %dprec 2
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:434: bison -o types.c types.y"
+echo cxx-type.at:434 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:434: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:434: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:434 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:434: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:436: \$PREPARSER ./types test-input"
+echo cxx-type.at:436 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "3.0-3.5: +(z,q)
+5.0-5.3: <declare>(T,x)
+7.0-7.7: <init-declare>(T,x,y)
+9.0-9.5: =(x,y)
+11.0-11.9: +(<cast>(x,T),y)
+13.0-13.5: <declare>(T,x)
+15.0-15.13: <init-declare>(T,y,+(z,q))
+17.0-17.15: <error>
+19.0-19.5: +(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:436: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 137 ) # 137. cxx-type.at:439: GLR: Merge conflicting parses, impure, no locations
+ at_setup_line='cxx-type.at:439'
+ at_desc='GLR: Merge conflicting parses, impure, no locations'
+ $at_quiet $ECHO_N "137: GLR: Merge conflicting parses, impure, no locations$ECHO_C"
+ at_xfail=no
+ (
+ echo "137. cxx-type.at:439: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+ static YYSTYPE stmtMerge (YYSTYPE x0, YYSTYPE x1);
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %merge <stmtMerge> { $$ = $1; }
+ | decl %merge <stmtMerge>
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+static YYSTYPE
+stmtMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ return new_nterm ("<OR>(%s,%s)", x0, x1, 0);
+}
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:441: bison -o types.c types.y"
+echo cxx-type.at:441 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:441: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:441: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:441 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:441: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:443: \$PREPARSER ./types test-input"
+echo cxx-type.at:443 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "+(z,q)
+<declare>(T,x)
+<init-declare>(T,x,y)
+=(x,y)
++(<cast>(x,T),y)
+<OR>(<declare>(T,x),<cast>(x,T))
+<OR>(<init-declare>(T,y,+(z,q)),=(<cast>(y,T),+(z,q)))
+<error>
++(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:443: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 138 ) # 138. cxx-type.at:446: GLR: Merge conflicting parses, impure, locations
+ at_setup_line='cxx-type.at:446'
+ at_desc='GLR: Merge conflicting parses, impure, locations'
+ $at_quiet $ECHO_N "138: GLR: Merge conflicting parses, impure, locations$ECHO_C"
+ at_xfail=no
+ (
+ echo "138. cxx-type.at:446: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+%locations
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+ static YYSTYPE stmtMerge (YYSTYPE x0, YYSTYPE x1);
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ printf ("%d.%d-%d.%d: ",
+ @2.first_line, @2.first_column,
+ @2.last_line, @2.last_column);
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %merge <stmtMerge> { $$ = $1; }
+ | decl %merge <stmtMerge>
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+static YYSTYPE
+stmtMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ return new_nterm ("<OR>(%s,%s)", x0, x1, 0);
+}
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:448: bison -o types.c types.y"
+echo cxx-type.at:448 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:448: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:448: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:448 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:448: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:450: \$PREPARSER ./types test-input"
+echo cxx-type.at:450 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "3.0-3.5: +(z,q)
+5.0-5.3: <declare>(T,x)
+7.0-7.7: <init-declare>(T,x,y)
+9.0-9.5: =(x,y)
+11.0-11.9: +(<cast>(x,T),y)
+13.0-13.5: <OR>(<declare>(T,x),<cast>(x,T))
+15.0-15.13: <OR>(<init-declare>(T,y,+(z,q)),=(<cast>(y,T),+(z,q)))
+17.0-17.15: <error>
+19.0-19.5: +(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:450: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 139 ) # 139. cxx-type.at:453: GLR: Merge conflicting parses, pure, no locations
+ at_setup_line='cxx-type.at:453'
+ at_desc='GLR: Merge conflicting parses, pure, no locations'
+ $at_quiet $ECHO_N "139: GLR: Merge conflicting parses, pure, no locations$ECHO_C"
+ at_xfail=no
+ (
+ echo "139. cxx-type.at:453: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+%pure-parser
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+ static YYSTYPE stmtMerge (YYSTYPE x0, YYSTYPE x1);
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %merge <stmtMerge> { $$ = $1; }
+ | decl %merge <stmtMerge>
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+static YYSTYPE
+stmtMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ return new_nterm ("<OR>(%s,%s)", x0, x1, 0);
+}
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:455: bison -o types.c types.y"
+echo cxx-type.at:455 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:455: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:455: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:455 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:455: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:457: \$PREPARSER ./types test-input"
+echo cxx-type.at:457 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "+(z,q)
+<declare>(T,x)
+<init-declare>(T,x,y)
+=(x,y)
++(<cast>(x,T),y)
+<OR>(<declare>(T,x),<cast>(x,T))
+<OR>(<init-declare>(T,y,+(z,q)),=(<cast>(y,T),+(z,q)))
+<error>
++(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:457: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 140 ) # 140. cxx-type.at:459: GLR: Merge conflicting parses, pure, locations
+ at_setup_line='cxx-type.at:459'
+ at_desc='GLR: Merge conflicting parses, pure, locations'
+ $at_quiet $ECHO_N "140: GLR: Merge conflicting parses, pure, locations$ECHO_C"
+ at_xfail=no
+ (
+ echo "140. cxx-type.at:459: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+%pure-parser %locations
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+ static YYSTYPE stmtMerge (YYSTYPE x0, YYSTYPE x1);
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ printf ("%d.%d-%d.%d: ",
+ @2.first_line, @2.first_column,
+ @2.last_line, @2.last_column);
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %merge <stmtMerge> { $$ = $1; }
+ | decl %merge <stmtMerge>
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+static YYSTYPE
+stmtMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ return new_nterm ("<OR>(%s,%s)", x0, x1, 0);
+}
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:461: bison -o types.c types.y"
+echo cxx-type.at:461 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:461: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:461: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:461 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:461: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:463: \$PREPARSER ./types test-input"
+echo cxx-type.at:463 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "3.0-3.5: +(z,q)
+5.0-5.3: <declare>(T,x)
+7.0-7.7: <init-declare>(T,x,y)
+9.0-9.5: =(x,y)
+11.0-11.9: +(<cast>(x,T),y)
+13.0-13.5: <OR>(<declare>(T,x),<cast>(x,T))
+15.0-15.13: <OR>(<init-declare>(T,y,+(z,q)),=(<cast>(y,T),+(z,q)))
+17.0-17.15: <error>
+19.0-19.5: +(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:463: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 141 ) # 141. cxx-type.at:466: GLR: Verbose messages, resolve ambiguity, impure, no locations
+ at_setup_line='cxx-type.at:466'
+ at_desc='GLR: Verbose messages, resolve ambiguity, impure, no locations'
+ $at_quiet $ECHO_N "141: GLR: Verbose messages, resolve ambiguity, impure, no locations$ECHO_C"
+ at_xfail=no
+ (
+ echo "141. cxx-type.at:466: testing ..."
+ $at_traceon
+
+
+
+
+
+
+# Using yacc.c?
+
+
+
+
+
+
+
+# yyerror receives the location if %location & %pure & (%glr or %parse-param).
+
+# yyerror always sees the locations (when activated), except if
+# yacc & pure & !param.
+
+
+# The interface is pure: either because %pure-parser, or because we
+# are using the C++ parsers.
+
+
+
+
+
+
+
+
+
+
+
+
+cat >types.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Simplified C++ Type and Expression Grammar. */
+
+%error-verbose
+
+%{
+ #include <stdio.h>
+ union Node {
+ struct {
+ int isNterm;
+ int parents;
+ } nodeInfo;
+ struct {
+ int isNterm; /* 1 */
+ int parents;
+ char const *form;
+ union Node *children[3];
+ } nterm;
+ struct {
+ int isNterm; /* 0 */
+ int parents;
+ char *text;
+ } term;
+ };
+ typedef union Node Node;
+ static Node *new_nterm (char const *, Node *, Node *, Node *);
+ static Node *new_term (char *);
+ static void free_node (Node *);
+ static char *node_to_string (Node *);
+ #define YYSTYPE Node *
+ static YYSTYPE stmtMerge (YYSTYPE x0, YYSTYPE x1);
+ #define YYINITDEPTH 10
+ #define YYSTACKEXPANDABLE 1
+ struct YYLTYPE;
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_PARAMETERS YYSTYPE *lvalp, struct YYLTYPE *llocp
+# define ERROR_PARAMETERS struct YYLTYPE *llocp, char const *s
+# else
+# define LEX_PARAMETERS YYSTYPE *lvalp
+# endif
+#endif
+#ifndef LEX_PARAMETERS
+# define LEX_PARAMETERS void
+#endif
+#ifndef ERROR_PARAMETERS
+# define ERROR_PARAMETERS char const *s
+#endif
+ int yylex (LEX_PARAMETERS);
+ void yyerror (ERROR_PARAMETERS);
+%}
+
+%token TYPENAME ID
+
+%right '='
+%left '+'
+
+%glr-parser
+
+%destructor { free_node ($$); } stmt expr decl declarator TYPENAME ID
+
+%%
+
+prog :
+ | prog stmt {
+ char *output;
+ output = node_to_string ($2);
+ printf ("%s\n", output);
+ free (output);
+ free_node ($2);
+ }
+ ;
+
+stmt : expr ';' %merge <stmtMerge> { $$ = $1; }
+ | decl %merge <stmtMerge>
+ | error ';' { $$ = new_nterm ("<error>", 0, 0, 0); }
+ | '@' { YYACCEPT; }
+ ;
+
+expr : ID
+ | TYPENAME '(' expr ')'
+ { $$ = new_nterm ("<cast>(%s,%s)", $3, $1, 0); }
+ | expr '+' expr { $$ = new_nterm ("+(%s,%s)", $1, $3, 0); }
+ | expr '=' expr { $$ = new_nterm ("=(%s,%s)", $1, $3, 0); }
+ ;
+
+decl : TYPENAME declarator ';'
+ { $$ = new_nterm ("<declare>(%s,%s)", $1, $2, 0); }
+ | TYPENAME declarator '=' expr ';'
+ { $$ = new_nterm ("<init-declare>(%s,%s,%s)", $1,
+ $2, $4); }
+ ;
+
+declarator : ID
+ | '(' declarator ')' { $$ = $2; }
+ ;
+
+%%
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+int
+main (int argc, char **argv)
+{
+ if (argc != 2)
+ abort ();
+ if (!freopen (argv[1], "r", stdin))
+ return 3;
+ return yyparse ();
+}
+
+int
+yylex (LEX_PARAMETERS)
+{
+ char buffer[256];
+ int c;
+ unsigned int i;
+ static int lineNum = 1;
+ static int colNum = 0;
+
+#if YYPURE
+# undef yylloc
+# define yylloc (*llocp)
+# undef yylval
+# define yylval (*lvalp)
+#endif
+
+ while (1)
+ {
+ c = getchar ();
+ switch (c)
+ {
+ case EOF:
+ return 0;
+ case '\t':
+ colNum = (colNum + 7) & ~7;
+ break;
+ case ' ': case '\f':
+ colNum += 1;
+ break;
+ case '\n':
+ lineNum += 1;
+ colNum = 0;
+ break;
+ default:
+ {
+ int tok;
+#if YYLSP_NEEDED
+ yylloc.first_line = yylloc.last_line = lineNum;
+ yylloc.first_column = colNum;
+#endif
+ if (isalpha (c))
+ {
+ i = 0;
+
+ do
+ {
+ buffer[i++] = c;
+ colNum += 1;
+ if (i == sizeof buffer - 1)
+ abort ();
+ c = getchar ();
+ }
+ while (isalnum (c) || c == '_');
+
+ ungetc (c, stdin);
+ buffer[i++] = 0;
+ tok = isupper ((unsigned char) buffer[0]) ? TYPENAME : ID;
+ yylval = new_term (strcpy ((char *) malloc (i), buffer));
+ }
+ else
+ {
+ colNum += 1;
+ tok = c;
+ yylval = 0;
+ }
+#if YYLSP_NEEDED
+ yylloc.last_column = colNum-1;
+#endif
+ return tok;
+ }
+ }
+ }
+}
+
+void
+yyerror (ERROR_PARAMETERS)
+{
+#if YYPURE && YYLSP_NEEDED
+ /* Pacify GCC by using llocp. */
+ if (! llocp)
+ abort ();
+#endif
+ fprintf (stderr, "%s\n", s);
+}
+
+static Node *
+new_nterm (char const *form, Node *child0, Node *child1, Node *child2)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->nterm.isNterm = 1;
+ node->nterm.parents = 0;
+ node->nterm.form = form;
+ node->nterm.children[0] = child0;
+ if (child0)
+ child0->nodeInfo.parents += 1;
+ node->nterm.children[1] = child1;
+ if (child1)
+ child1->nodeInfo.parents += 1;
+ node->nterm.children[2] = child2;
+ if (child2)
+ child2->nodeInfo.parents += 1;
+ return node;
+}
+
+static Node *
+new_term (char *text)
+{
+ Node *node = (Node *) malloc (sizeof (Node));
+ node->term.isNterm = 0;
+ node->term.parents = 0;
+ node->term.text = text;
+ return node;
+}
+
+static void
+free_node (Node *node)
+{
+ if (!node)
+ return;
+ node->nodeInfo.parents -= 1;
+ /* Free only if 0 (last parent) or -1 (no parents). */
+ if (node->nodeInfo.parents > 0)
+ return;
+ if (node->nodeInfo.isNterm == 1)
+ {
+ free_node (node->nterm.children[0]);
+ free_node (node->nterm.children[1]);
+ free_node (node->nterm.children[2]);
+ }
+ else
+ free (node->term.text);
+ free (node);
+}
+
+static char *
+node_to_string (Node *node)
+{
+ char *child0;
+ char *child1;
+ char *child2;
+ char *buffer;
+ if (!node)
+ {
+ buffer = (char *) malloc (1);
+ buffer[0] = 0;
+ }
+ else if (node->nodeInfo.isNterm == 1)
+ {
+ child0 = node_to_string (node->nterm.children[0]);
+ child1 = node_to_string (node->nterm.children[1]);
+ child2 = node_to_string (node->nterm.children[2]);
+ buffer = (char *) malloc (strlen (node->nterm.form) + strlen (child0)
+ + strlen (child1) + strlen (child2) + 1);
+ sprintf (buffer, node->nterm.form, child0, child1, child2);
+ free (child0);
+ free (child1);
+ free (child2);
+ }
+ else
+ buffer = strdup (node->term.text);
+ return buffer;
+}
+
+
+static YYSTYPE
+stmtMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ return new_nterm ("<OR>(%s,%s)", x0, x1, 0);
+}
+
+_ATEOF
+
+
+
+cat >test-input <<'_ATEOF'
+
+
+z + q;
+
+T x;
+
+T x = y;
+
+x = y;
+
+T (x) + y;
+
+T (x);
+
+T (y) = z + q;
+
+T (y y) = z + q;
+
+z + q;
+
+@
+
+This is total garbage, but it should be ignored.
+_ATEOF
+
+
+$at_traceoff
+echo "cxx-type.at:468: bison -o types.c types.y"
+echo cxx-type.at:468 >$at_check_line_file
+( $at_traceon; bison -o types.c types.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:468: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "cxx-type.at:468: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o types types.c \$LIBS"
+echo cxx-type.at:468 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o types types.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:468: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+$at_traceoff
+echo "cxx-type.at:470: \$PREPARSER ./types test-input"
+echo cxx-type.at:470 >$at_check_line_file
+( $at_traceon; $PREPARSER ./types test-input ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error, unexpected ID, expecting '=' or '+' or ')'
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "+(z,q)
+<declare>(T,x)
+<init-declare>(T,x,y)
+=(x,y)
++(<cast>(x,T),y)
+<OR>(<declare>(T,x),<cast>(x,T))
+<OR>(<init-declare>(T,y,+(z,q)),=(<cast>(y,T),+(z,q)))
+<error>
++(z,q)
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "cxx-type.at:470: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ banner-18 ) # Banner 18. glr-regression.at:19
+ cat <<\_ATEOF
+
+GLR Regression Tests
+
+_ATEOF
+ ;;
+
+ 142 ) # 142. glr-regression.at:25: Badly Collapsed GLR States
+ at_setup_line='glr-regression.at:25'
+ at_desc='Badly Collapsed GLR States'
+ $at_quiet $ECHO_N "142: Badly Collapsed GLR States $ECHO_C"
+ at_xfail=no
+ (
+ echo "142. glr-regression.at:25: testing ..."
+ $at_traceon
+
+
+cat >glr-regr1.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Regression Test: Improper state compression */
+/* Reported by Scott McPeak */
+
+%{
+#include <stdio.h>
+
+#define YYSTYPE int
+static YYSTYPE exprMerge (YYSTYPE x0, YYSTYPE x1);
+int yylex (void);
+void yyerror (char const *msg);
+%}
+
+
+%glr-parser
+
+
+/* -------- productions ------ */
+%%
+
+StartSymbol: E { $$=0; } %merge <exprMerge>
+ ;
+
+E: E 'P' E { $$=1; printf("E -> E 'P' E\n"); } %merge <exprMerge>
+ | 'B' { $$=2; printf("E -> 'B'\n"); } %merge <exprMerge>
+ ;
+
+
+
+/* ---------- C code ----------- */
+%%
+
+static YYSTYPE exprMerge (YYSTYPE x0, YYSTYPE x1)
+{
+ (void) x0;
+ (void) x1;
+ printf ("<OR>\n");
+ return 0;
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+
+void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+
+int
+yylex (void)
+{
+ for (;;)
+ {
+ int ch = getchar ();
+ if (ch == EOF)
+ return 0;
+ else if (ch == 'B' || ch == 'P')
+ return ch;
+ }
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:96: bison -o glr-regr1.c glr-regr1.y"
+echo glr-regression.at:96 >$at_check_line_file
+( $at_traceon; bison -o glr-regr1.c glr-regr1.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr1.y: conflicts: 1 shift/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:96: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:97: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr1 glr-regr1.c \$LIBS"
+echo glr-regression.at:97 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr1 glr-regr1.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:97: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:108: echo BPBPB | ./glr-regr1"
+echo glr-regression.at:108 >$at_check_line_file
+( $at_traceon; echo BPBPB | ./glr-regr1 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "E -> 'B'
+E -> 'B'
+E -> E 'P' E
+E -> 'B'
+E -> E 'P' E
+E -> 'B'
+E -> E 'P' E
+E -> E 'P' E
+<OR>
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:108: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 143 ) # 143. glr-regression.at:116: Improper handling of embedded actions and dollar(-N) in GLR parsers
+ at_setup_line='glr-regression.at:116'
+ at_desc='Improper handling of embedded actions and dollar(-N) in GLR parsers'
+ $at_quiet $ECHO_N "143: Improper handling of embedded actions and dollar(-N) in GLR parsers$ECHO_C"
+ at_xfail=no
+ (
+ echo "143. glr-regression.at:116: testing ..."
+ $at_traceon
+
+
+cat >glr-regr2a.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Regression Test: Improper handling of embedded actions and $-N */
+/* Reported by S. Eken */
+
+%{
+ #define YYSTYPE char *
+
+ #include <ctype.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+ int yylex (void);
+ void yyerror (char const *);
+%}
+
+%glr-parser
+
+%%
+
+command:
+ 's' var 't'
+ { printf ("Variable: '%s'\n", $2); }
+ 'v' 'x' 'q'
+ { free ($2); }
+ | 's' var_list 't' 'e'
+ { printf ("Varlist: '%s'\n", $2); free ($2); }
+ | 's' var 't' var_printer 'x'
+ { free ($2); }
+ ;
+
+var:
+ 'V'
+ { $$ = $1; }
+ ;
+
+var_list:
+ var
+ { $$ = $1; }
+ | var ',' var_list
+ {
+ char *s = (char *) realloc ($1, strlen ($1) + 1 + strlen ($3) + 1);
+ strcat (s, ",");
+ strcat (s, $3);
+ free ($3);
+ $$ = s;
+ }
+ ;
+
+var_printer: 'v'
+ { printf ("Variable: '%s'\n", $-1); }
+
+%%
+
+FILE *input = NULL;
+
+int
+yylex (void)
+{
+ char buf[50];
+ char *s;
+ switch (fscanf (input, " %1[a-z,]", buf)) {
+ case 1:
+ return buf[0];
+ case EOF:
+ return 0;
+ default:
+ break;
+ }
+ if (fscanf (input, "%49s", buf) != 1)
+ return 0;
+ if (sizeof buf - 1 <= strlen (buf))
+ abort ();
+ s = (char *) malloc (strlen (buf) + 1);
+ strcpy (s, buf);
+ yylval = s;
+ return 'V';
+}
+
+void
+yyerror (char const *s)
+{ printf ("%s\n", s);
+}
+
+int
+main (int argc, char **argv)
+{
+ input = stdin;
+ if (argc == 2 && !(input = fopen (argv[1], "r"))) return 3;
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:212: bison -o glr-regr2a.c glr-regr2a.y"
+echo glr-regression.at:212 >$at_check_line_file
+( $at_traceon; bison -o glr-regr2a.c glr-regr2a.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr2a.y: conflicts: 2 shift/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:212: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:213: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr2a glr-regr2a.c \$LIBS"
+echo glr-regression.at:213 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr2a glr-regr2a.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:213: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:217: echo s VARIABLE_1 t v x q | ./glr-regr2a"
+echo glr-regression.at:217 >$at_check_line_file
+( $at_traceon; echo s VARIABLE_1 t v x q | ./glr-regr2a ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Variable: 'VARIABLE_1'
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:217: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:220: echo s VARIABLE_1 , ANOTHER_VARIABLE_2 t e | ./glr-regr2a"
+echo glr-regression.at:220 >$at_check_line_file
+( $at_traceon; echo s VARIABLE_1 , ANOTHER_VARIABLE_2 t e | ./glr-regr2a ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Varlist: 'VARIABLE_1,ANOTHER_VARIABLE_2'
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:220: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:223: echo s VARIABLE_3 t v x | ./glr-regr2a"
+echo glr-regression.at:223 >$at_check_line_file
+( $at_traceon; echo s VARIABLE_3 t v x | ./glr-regr2a ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Variable: 'VARIABLE_3'
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:223: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 144 ) # 144. glr-regression.at:232: Improper merging of GLR delayed action sets
+ at_setup_line='glr-regression.at:232'
+ at_desc='Improper merging of GLR delayed action sets'
+ $at_quiet $ECHO_N "144: Improper merging of GLR delayed action sets $ECHO_C"
+ at_xfail=no
+ (
+ echo "144. glr-regression.at:232: testing ..."
+ $at_traceon
+
+
+cat >glr-regr3.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+/* Regression Test: Improper merging of GLR delayed action sets. */
+/* Reported by M. Rosien */
+
+%{
+#include <stdio.h>
+#include <stdarg.h>
+
+static int MergeRule (int x0, int x1);
+static void yyerror (char const * s);
+int yylex (void);
+
+#define RULE(x) (1 << (x))
+
+%}
+
+%glr-parser
+
+%token BAD_CHAR
+%token P1 P2 T1 T2 T3 T4 O1 O2
+
+%%
+
+S : P1 T4 O2 NT6 P2 { printf ("Result: %x\n", $4); }
+;
+
+NT1 : P1 T1 O1 T2 P2 { $$ = RULE(2); } %merge<MergeRule>
+;
+
+NT2 : NT1 { $$ = RULE(3); } %merge<MergeRule>
+ | P1 NT1 O1 T3 P2 { $$ = RULE(4); } %merge<MergeRule>
+;
+
+NT3 : T3 { $$ = RULE(5); } %merge<MergeRule>
+ | P1 NT1 O1 T3 P2 { $$ = RULE(6); } %merge<MergeRule>
+;
+
+NT4 : NT3 { $$ = RULE(7); } %merge<MergeRule>
+ | NT2 { $$ = RULE(8); } %merge<MergeRule>
+ | P1 NT2 O1 NT3 P2 { $$ = RULE(9); } %merge<MergeRule>
+;
+
+NT5 : NT4 { $$ = RULE(10); } %merge<MergeRule>
+;
+
+NT6 : P1 NT1 O1 T3 P2 { $$ = RULE(11) | $2; } %merge<MergeRule>
+ | NT5 { $$ = RULE(12) | $1; } %merge<MergeRule>
+;
+
+%%
+
+static int MergeRule (int x0, int x1) {
+ return x0 | x1;
+}
+
+static void yyerror(char const * s) {
+ fprintf(stderr,"error: %s\n",s);
+}
+
+FILE *input = NULL;
+
+int P[] = { P1, P2 };
+int O[] = { O1, O2 };
+int T[] = { T1, T2, T3, T4 };
+
+int yylex (void)
+{
+ char inp[3];
+ if (fscanf (input, "%2s", inp) == EOF)
+ return 0;
+ switch (inp[0])
+ {
+ case 'p': return P[inp[1] - '1'];
+ case 't': return T[inp[1] - '1'];
+ case 'o': return O[inp[1] - '1'];
+ }
+ return BAD_CHAR;
+}
+
+int main(int argc, char* argv[]) {
+ input = stdin;
+ if (argc == 2 && !(input = fopen (argv[1], "r"))) return 3;
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:322: bison -o glr-regr3.c glr-regr3.y"
+echo glr-regression.at:322 >$at_check_line_file
+( $at_traceon; bison -o glr-regr3.c glr-regr3.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr3.y: conflicts: 1 shift/reduce, 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:322: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:323: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr3 glr-regr3.c \$LIBS"
+echo glr-regression.at:323 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr3 glr-regr3.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:323: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:327: echo p1 t4 o2 p1 p1 t1 o1 t2 p2 o1 t3 p2 p2 | ./glr-regr3"
+echo glr-regression.at:327 >$at_check_line_file
+( $at_traceon; echo p1 t4 o2 p1 p1 t1 o1 t2 p2 o1 t3 p2 p2 | ./glr-regr3 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Result: 1c04
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:327: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 145 ) # 145. glr-regression.at:337: Duplicate representation of merged trees
+ at_setup_line='glr-regression.at:337'
+ at_desc='Duplicate representation of merged trees'
+ $at_quiet $ECHO_N "145: Duplicate representation of merged trees $ECHO_C"
+ at_xfail=no
+ (
+ echo "145. glr-regression.at:337: testing ..."
+ $at_traceon
+
+
+cat >glr-regr4.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%union { char *ptr; }
+%type <ptr> S A A1 A2 B
+%glr-parser
+
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+ static char *merge (YYSTYPE, YYSTYPE);
+ static char *make_value (char const *, char const *);
+ static void yyerror (char const *);
+ static int yylex (void);
+%}
+
+%%
+
+tree: S { printf ("%s\n", $1); } ;
+
+S:
+ A %merge<merge> { $$ = make_value ("S", $1); }
+ | B %merge<merge> { $$ = make_value ("S", $1); }
+ ;
+
+A:
+ A1 %merge<merge> { $$ = make_value ("A", $1); }
+ | A2 %merge<merge> { $$ = make_value ("A", $1); }
+ ;
+
+A1: 'a' { $$ = make_value ("A1", "'a'"); } ;
+A2: 'a' { $$ = make_value ("A2", "'a'"); } ;
+B: 'a' { $$ = make_value ("B", "'a'"); } ;
+
+%%
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+
+static char *
+make_value (char const *parent, char const *child)
+{
+ char const format[] = "%s <- %s";
+ char *value =
+ (char *) malloc (strlen (parent) + strlen (child) + sizeof format);
+ sprintf (value, format, parent, child);
+ return value;
+}
+
+static char *
+merge (YYSTYPE s1, YYSTYPE s2)
+{
+ char const format[] = "merge{ %s and %s }";
+ char *value =
+ (char *) malloc (strlen (s1.ptr) + strlen (s2.ptr) + sizeof format);
+ sprintf (value, format, s1.ptr, s2.ptr);
+ return value;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:417: bison -o glr-regr4.c glr-regr4.y"
+echo glr-regression.at:417 >$at_check_line_file
+( $at_traceon; bison -o glr-regr4.c glr-regr4.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr4.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:417: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:418: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr4 glr-regr4.c \$LIBS"
+echo glr-regression.at:418 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr4 glr-regr4.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:418: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:422: ./glr-regr4"
+echo glr-regression.at:422 >$at_check_line_file
+( $at_traceon; ./glr-regr4 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "merge{ S <- merge{ A <- A1 <- 'a' and A <- A2 <- 'a' } and S <- B <- 'a' }
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:422: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 146 ) # 146. glr-regression.at:432: User destructor for unresolved GLR semantic value
+ at_setup_line='glr-regression.at:432'
+ at_desc='User destructor for unresolved GLR semantic value'
+ $at_quiet $ECHO_N "146: User destructor for unresolved GLR semantic value$ECHO_C"
+ at_xfail=no
+ (
+ echo "146. glr-regression.at:432: testing ..."
+ $at_traceon
+
+
+cat >glr-regr5.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ enum { MAGIC_VALUE = -1057808125 }; /* originally chosen at random */
+%}
+
+%glr-parser
+%union { int value; }
+%type <value> start
+
+%destructor {
+ if ($$ != MAGIC_VALUE)
+ {
+ fprintf (stderr, "Bad destructor call.\n");
+ exit (EXIT_FAILURE);
+ }
+} start
+
+%%
+
+start:
+ 'a' { $$ = MAGIC_VALUE; }
+ | 'a' { $$ = MAGIC_VALUE; }
+ ;
+
+%%
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse () != 1;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:487: bison -o glr-regr5.c glr-regr5.y"
+echo glr-regression.at:487 >$at_check_line_file
+( $at_traceon; bison -o glr-regr5.c glr-regr5.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr5.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:487: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:488: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr5 glr-regr5.c \$LIBS"
+echo glr-regression.at:488 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr5 glr-regr5.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:488: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:492: ./glr-regr5"
+echo glr-regression.at:492 >$at_check_line_file
+( $at_traceon; ./glr-regr5 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax is ambiguous
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:492: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 147 ) # 147. glr-regression.at:502: User destructor after an error during a split parse
+ at_setup_line='glr-regression.at:502'
+ at_desc='User destructor after an error during a split parse'
+ $at_quiet $ECHO_N "147: User destructor after an error during a split parse$ECHO_C"
+ at_xfail=no
+ (
+ echo "147. glr-regression.at:502: testing ..."
+ $at_traceon
+
+
+cat >glr-regr6.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+%}
+
+%glr-parser
+%union { int value; }
+%type <value> 'a'
+
+%destructor {
+ printf ("Destructor called.\n");
+} 'a'
+
+%%
+
+start: 'a' | 'a' ;
+
+%%
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse () != 1;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:549: bison -o glr-regr6.c glr-regr6.y"
+echo glr-regression.at:549 >$at_check_line_file
+( $at_traceon; bison -o glr-regr6.c glr-regr6.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr6.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:549: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:550: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr6 glr-regr6.c \$LIBS"
+echo glr-regression.at:550 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr6 glr-regr6.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:550: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:556: ./glr-regr6"
+echo glr-regression.at:556 >$at_check_line_file
+( $at_traceon; ./glr-regr6 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax is ambiguous
+" | $at_diff - $at_stderr || at_failed=:
+echo >>$at_stdout; echo "Destructor called.
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:556: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 148 ) # 148. glr-regression.at:566: Duplicated user destructor for lookahead
+ at_setup_line='glr-regression.at:566'
+ at_desc='Duplicated user destructor for lookahead'
+ $at_quiet $ECHO_N "148: Duplicated user destructor for lookahead $ECHO_C"
+ at_xfail=no
+ (
+ echo "148. glr-regression.at:566: testing ..."
+ $at_traceon
+
+
+cat >glr-regr7.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ #define YYSTACKEXPANDABLE 0
+%}
+
+%glr-parser
+%union { int *count; }
+%type <count> 'a'
+
+%destructor {
+ if ((*$$)++)
+ fprintf (stderr, "Destructor called on same value twice.\n");
+} 'a'
+
+%%
+
+start:
+ stack1 start
+ | stack2 start
+ | /* empty */
+ ;
+stack1: 'a' ;
+stack2: 'a' ;
+
+%%
+
+static int
+yylex (void)
+{
+ yylval.count = (int *) malloc (sizeof (int));
+ if (!yylval.count)
+ {
+ fprintf (stderr, "Test inconclusive.\n");
+ exit (EXIT_FAILURE);
+ }
+ *yylval.count = 0;
+ return 'a';
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:627: bison -o glr-regr7.c glr-regr7.y"
+echo glr-regression.at:627 >$at_check_line_file
+( $at_traceon; bison -o glr-regr7.c glr-regr7.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr7.y: conflicts: 2 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:627: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:628: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr7 glr-regr7.c \$LIBS"
+echo glr-regression.at:628 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr7 glr-regr7.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:628: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:632: ./glr-regr7"
+echo glr-regression.at:632 >$at_check_line_file
+( $at_traceon; ./glr-regr7 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "memory exhausted
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 2) ;;
+ *) echo "glr-regression.at:632: exit code was $at_status, expected 2"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 149 ) # 149. glr-regression.at:644: Incorrectly initialized location for empty right-hand side in GLR
+ at_setup_line='glr-regression.at:644'
+ at_desc='Incorrectly initialized location for empty right-hand side in GLR'
+ $at_quiet $ECHO_N "149: Incorrectly initialized location for empty right-hand side in GLR$ECHO_C"
+ at_xfail=no
+ (
+ echo "149. glr-regression.at:644: testing ..."
+ $at_traceon
+
+
+cat >glr-regr8.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+ #include <stdio.h>
+ #include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static void yyerror (char const *msg);
+%}
+
+%token T_CONSTANT
+%token T_PORT
+%token T_SIGNAL
+
+%glr-parser
+
+%%
+
+
+PortClause : T_PORT InterfaceDeclaration T_PORT
+ { printf("%d/%d - %d/%d - %d/%d\n",
+ @1.first_column, @1.last_column,
+ @2.first_column, @2.last_column,
+ @3.first_column, @3.last_column); }
+ ;
+
+InterfaceDeclaration : OptConstantWord %dprec 1
+ | OptSignalWord %dprec 2
+ ;
+
+OptConstantWord : /* empty */
+ | T_CONSTANT
+ ;
+
+OptSignalWord : /* empty */
+ { printf("empty: %d/%d\n", @$.first_column, @$.last_column); }
+ | T_SIGNAL
+ ;
+
+%%
+
+void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int lexIndex;
+
+int yylex (void)
+{
+ lexIndex += 1;
+ switch (lexIndex)
+ {
+ case 1:
+ yylloc.first_column = 1;
+ yylloc.last_column = 9;
+ return T_PORT;
+ case 2:
+ yylloc.first_column = 13;
+ yylloc.last_column = 17;
+ return T_PORT;
+ default:
+ return 0;
+ }
+}
+
+int
+main (void)
+{
+ yyparse();
+ return 0;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:723: bison -o glr-regr8.c glr-regr8.y"
+echo glr-regression.at:723 >$at_check_line_file
+( $at_traceon; bison -o glr-regr8.c glr-regr8.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr8.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:723: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:724: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr8 glr-regr8.c \$LIBS"
+echo glr-regression.at:724 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr8 glr-regr8.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:724: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:730: ./glr-regr8"
+echo glr-regression.at:730 >$at_check_line_file
+( $at_traceon; ./glr-regr8 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "empty: 9/9
+1/9 - 9/9 - 13/17
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:730: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 150 ) # 150. glr-regression.at:740: No users destructors if stack 0 deleted
+ at_setup_line='glr-regression.at:740'
+ at_desc='No users destructors if stack 0 deleted'
+ $at_quiet $ECHO_N "150: No users destructors if stack 0 deleted $ECHO_C"
+ at_xfail=no
+ (
+ echo "150. glr-regression.at:740: testing ..."
+ $at_traceon
+
+
+cat >glr-regr9.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+# include <stdio.h>
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+# define YYSTACKEXPANDABLE 0
+ static int tokens = 0;
+ static int destructors = 0;
+# define USE(Var)
+%}
+
+%glr-parser
+%union { int dummy; }
+%type <dummy> 'a'
+
+%destructor {
+ destructors += 1;
+} 'a'
+
+%%
+
+start:
+ ambig0 'a' { destructors += 2; USE ($2); }
+ | ambig1 start { destructors += 1; }
+ | ambig2 start { destructors += 1; }
+ ;
+
+ambig0: 'a' ;
+ambig1: 'a' ;
+ambig2: 'a' ;
+
+%%
+
+static int
+yylex (void)
+{
+ tokens += 1;
+ return 'a';
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+ int exit_status;
+ exit_status = yyparse ();
+ if (tokens != destructors)
+ {
+ fprintf (stderr, "Tokens = %d, Destructors = %d\n", tokens, destructors);
+ return 1;
+ }
+ return !exit_status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:806: bison -o glr-regr9.c glr-regr9.y"
+echo glr-regression.at:806 >$at_check_line_file
+( $at_traceon; bison -o glr-regr9.c glr-regr9.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr9.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:806: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:807: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr9 glr-regr9.c \$LIBS"
+echo glr-regression.at:807 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr9 glr-regr9.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:807: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:811: ./glr-regr9"
+echo glr-regression.at:811 >$at_check_line_file
+( $at_traceon; ./glr-regr9 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "memory exhausted
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:811: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 151 ) # 151. glr-regression.at:820: Corrupted semantic options if user action cuts parse
+ at_setup_line='glr-regression.at:820'
+ at_desc='Corrupted semantic options if user action cuts parse'
+ $at_quiet $ECHO_N "151: Corrupted semantic options if user action cuts parse$ECHO_C"
+ at_xfail=no
+ (
+ echo "151. glr-regression.at:820: testing ..."
+ $at_traceon
+
+
+cat >glr-regr10.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+# include <stdio.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ #define GARBAGE_SIZE 50
+ static char garbage[GARBAGE_SIZE];
+%}
+
+%glr-parser
+%union { char *ptr; }
+%type <ptr> start
+
+%%
+
+start:
+ %dprec 2 { $$ = garbage; YYACCEPT; }
+ | %dprec 1 { $$ = garbage; YYACCEPT; }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ return 0;
+}
+
+int
+main (void)
+{
+ int i;
+ for (i = 0; i < GARBAGE_SIZE; i+=1)
+ garbage[i] = 108;
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:869: bison -o glr-regr10.c glr-regr10.y"
+echo glr-regression.at:869 >$at_check_line_file
+( $at_traceon; bison -o glr-regr10.c glr-regr10.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr10.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:869: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:870: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr10 glr-regr10.c \$LIBS"
+echo glr-regression.at:870 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr10 glr-regr10.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:870: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:872: ./glr-regr10"
+echo glr-regression.at:872 >$at_check_line_file
+( $at_traceon; ./glr-regr10 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:872: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 152 ) # 152. glr-regression.at:881: Undesirable destructors if user action cuts parse
+ at_setup_line='glr-regression.at:881'
+ at_desc='Undesirable destructors if user action cuts parse'
+ $at_quiet $ECHO_N "152: Undesirable destructors if user action cuts parse$ECHO_C"
+ at_xfail=no
+ (
+ echo "152. glr-regression.at:881: testing ..."
+ $at_traceon
+
+
+cat >glr-regr11.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%{
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int destructors = 0;
+# define USE(val)
+%}
+
+%glr-parser
+%union { int dummy; }
+%type <int> 'a'
+%destructor { destructors += 1; } 'a'
+
+%%
+
+start:
+ 'a' %dprec 2 { USE ($1); destructors += 1; YYACCEPT; }
+ | 'a' %dprec 1 { USE ($1); destructors += 1; YYACCEPT; }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "a";
+ return *input++;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse ();
+ if (destructors != 1)
+ {
+ fprintf (stderr, "Destructor calls: %d\n", destructors);
+ return 1;
+ }
+ return exit_status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:935: bison -o glr-regr11.c glr-regr11.y"
+echo glr-regression.at:935 >$at_check_line_file
+( $at_traceon; bison -o glr-regr11.c glr-regr11.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr11.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:935: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:936: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr11 glr-regr11.c \$LIBS"
+echo glr-regression.at:936 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr11 glr-regr11.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:936: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:938: ./glr-regr11"
+echo glr-regression.at:938 >$at_check_line_file
+( $at_traceon; ./glr-regr11 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:938: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 153 ) # 153. glr-regression.at:947: Leaked semantic values if user action cuts parse
+ at_setup_line='glr-regression.at:947'
+ at_desc='Leaked semantic values if user action cuts parse'
+ $at_quiet $ECHO_N "153: Leaked semantic values if user action cuts parse$ECHO_C"
+ at_xfail=no
+ (
+ echo "153. glr-regression.at:947: testing ..."
+ $at_traceon
+
+
+cat >glr-regr12.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%glr-parser
+%union { int dummy; }
+%token PARENT_RHS_AFTER
+%type <dummy> parent_rhs_before merged PARENT_RHS_AFTER
+%destructor { parent_rhs_before_value = 0; } parent_rhs_before
+%destructor { merged_value = 0; } merged
+%destructor { parent_rhs_after_value = 0; } PARENT_RHS_AFTER
+
+%{
+# include <stdlib.h>
+ static int merge (YYSTYPE, YYSTYPE);
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int parent_rhs_before_value = 0;
+ static int merged_value = 0;
+ static int parent_rhs_after_value = 0;
+# define USE(val)
+%}
+
+%%
+
+start:
+ alt1 %dprec 1
+ | alt2 %dprec 2
+ ;
+
+alt1:
+ PARENT_RHS_AFTER {
+ USE ($1);
+ parent_rhs_after_value = 0;
+ }
+ ;
+
+alt2:
+ parent_rhs_before merged PARENT_RHS_AFTER {
+ USE (($1, $2, $3));
+ parent_rhs_before_value = 0;
+ merged_value = 0;
+ parent_rhs_after_value = 0;
+ }
+ ;
+
+parent_rhs_before:
+ {
+ USE ($$);
+ parent_rhs_before_value = 1;
+ }
+ ;
+
+merged:
+ %merge<merge> {
+ USE ($$);
+ merged_value = 1;
+ }
+ | cut %merge<merge> {
+ USE ($$);
+ merged_value = 1;
+ }
+ ;
+
+cut: { YYACCEPT; } ;
+
+%%
+
+static int
+merge (YYSTYPE s1, YYSTYPE s2)
+{
+ /* Not invoked. */
+ char dummy = s1.dummy + s2.dummy;
+ return dummy;
+}
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static int const input[] = { PARENT_RHS_AFTER, 0 };
+ static const int *inputp = input;
+ if (*inputp == PARENT_RHS_AFTER)
+ parent_rhs_after_value = 1;
+ return *inputp++;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse ();
+ if (parent_rhs_before_value)
+ {
+ fprintf (stderr, "`parent_rhs_before' destructor not called.\n");
+ exit_status = 1;
+ }
+ if (merged_value)
+ {
+ fprintf (stderr, "`merged' destructor not called.\n");
+ exit_status = 1;
+ }
+ if (parent_rhs_after_value)
+ {
+ fprintf (stderr, "`PARENT_RHS_AFTER' destructor not called.\n");
+ exit_status = 1;
+ }
+ return exit_status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:1064: bison -o glr-regr12.c glr-regr12.y"
+echo glr-regression.at:1064 >$at_check_line_file
+( $at_traceon; bison -o glr-regr12.c glr-regr12.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr12.y: conflicts: 1 shift/reduce, 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1064: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:1065: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr12 glr-regr12.c \$LIBS"
+echo glr-regression.at:1065 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr12 glr-regr12.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1065: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:1067: ./glr-regr12"
+echo glr-regression.at:1067 >$at_check_line_file
+( $at_traceon; ./glr-regr12 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1067: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 154 ) # 154. glr-regression.at:1078: Incorrect lookahead during deterministic GLR
+ at_setup_line='glr-regression.at:1078'
+ at_desc='Incorrect lookahead during deterministic GLR'
+ $at_quiet $ECHO_N "154: Incorrect lookahead during deterministic GLR $ECHO_C"
+ at_xfail=no
+ (
+ echo "154. glr-regression.at:1078: testing ..."
+ $at_traceon
+
+
+cat >glr-regr13.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+/* Tests:
+ - Defaulted state with initial yychar: yychar == YYEMPTY.
+ - Nondefaulted state: yychar != YYEMPTY.
+ - Defaulted state after lookahead: yychar != YYEMPTY.
+ - Defaulted state after shift: yychar == YYEMPTY.
+ - User action changing the lookahead. */
+
+%{
+ #include <stdio.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static void print_look_ahead (char const *);
+ #define USE(value)
+%}
+
+%union { char value; }
+%type <value> 'a' 'b'
+%glr-parser
+%locations
+
+%%
+
+start:
+ defstate_init defstate_shift 'b' change_lookahead 'a' {
+ USE ($3);
+ print_look_ahead ("start <- defstate_init defstate_shift 'b'");
+ }
+ ;
+defstate_init:
+ {
+ print_look_ahead ("defstate_init <- empty string");
+ }
+ ;
+defstate_shift:
+ nondefstate defstate_look 'a' {
+ USE ($3);
+ print_look_ahead ("defstate_shift <- nondefstate defstate_look 'a'");
+ }
+ ;
+defstate_look:
+ {
+ print_look_ahead ("defstate_look <- empty string");
+ }
+ ;
+nondefstate:
+ {
+ print_look_ahead ("nondefstate <- empty string");
+ }
+ | 'b' {
+ USE ($1);
+ print_look_ahead ("nondefstate <- 'b'");
+ }
+ ;
+change_lookahead:
+ {
+ yychar = 'a';
+ }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "ab";
+ static int i = 0;
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = i + 1;
+ yylval.value = input[i] + 'A' - 'a';
+ return input[i++];
+}
+
+static void
+print_look_ahead (char const *reduction)
+{
+ printf ("%s:\n yychar=", reduction);
+ if (yychar == YYEMPTY)
+ printf ("YYEMPTY");
+ else if (yychar == YYEOF)
+ printf ("YYEOF");
+ else
+ {
+ printf ("'%c', yylval='", yychar);
+ if (yylval.value > ' ')
+ printf ("%c", yylval.value);
+ printf ("', yylloc=(%d,%d),(%d,%d)",
+ yylloc.first_line, yylloc.first_column,
+ yylloc.last_line, yylloc.last_column);
+ }
+ printf ("\n");
+}
+
+int
+main (void)
+{
+ yychar = '#'; /* Not a token in the grammar. */
+ yylval.value = '!';
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:1189: bison -o glr-regr13.c glr-regr13.y"
+echo glr-regression.at:1189 >$at_check_line_file
+( $at_traceon; bison -o glr-regr13.c glr-regr13.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1189: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:1190: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr13 glr-regr13.c \$LIBS"
+echo glr-regression.at:1190 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr13 glr-regr13.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1190: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:1203: ./glr-regr13"
+echo glr-regression.at:1203 >$at_check_line_file
+( $at_traceon; ./glr-regr13 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "defstate_init <- empty string:
+ yychar=YYEMPTY
+nondefstate <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+defstate_look <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+defstate_shift <- nondefstate defstate_look 'a':
+ yychar=YYEMPTY
+start <- defstate_init defstate_shift 'b':
+ yychar=YYEMPTY
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1203: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 155 ) # 155. glr-regression.at:1212: Incorrect lookahead during nondeterministic GLR
+ at_setup_line='glr-regression.at:1212'
+ at_desc='Incorrect lookahead during nondeterministic GLR'
+ $at_quiet $ECHO_N "155: Incorrect lookahead during nondeterministic GLR$ECHO_C"
+ at_xfail=no
+ (
+ echo "155. glr-regression.at:1212: testing ..."
+ $at_traceon
+
+
+cat >glr-regr14.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+/* Tests:
+ - Conflicting actions (split-off parse, which copies lookahead need,
+ which is necessarily yytrue) and nonconflicting actions (non-split-off
+ parse) for nondefaulted state: yychar != YYEMPTY.
+ - Merged deferred actions (lookahead need and RHS from different stack
+ than the target state) and nonmerged deferred actions (same stack).
+ - Defaulted state after lookahead: yychar != YYEMPTY.
+ - Defaulted state after shift: yychar == YYEMPTY.
+ - yychar != YYEMPTY but lookahead need is yyfalse (a previous stack has
+ seen the lookahead but current stack has not).
+ - Exceeding stack capacity (stack explosion), and thus reallocating
+ lookahead need array.
+ Note that it does not seem possible to see the initial yychar value during
+ nondeterministic operation since:
+ - In order to preserve the initial yychar, only defaulted states may be
+ entered.
+ - If only defaulted states are entered, there are no conflicts, so
+ nondeterministic operation does not start. */
+
+%union { char value; }
+
+%{
+ #include <stdio.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static void print_look_ahead (char const *);
+ static char merge (union YYSTYPE, union YYSTYPE);
+ #define USE(value)
+%}
+
+%type <value> 'a' 'b' 'c' 'd' stack_explosion
+%glr-parser
+%locations
+
+%%
+
+start:
+ merge 'c' stack_explosion {
+ USE ($2); USE ($3);
+ print_look_ahead ("start <- merge 'c' stack_explosion");
+ }
+ ;
+
+/* When merging the 2 deferred actions, the lookahead needs are different. */
+merge:
+ nonconflict1 'a' 'b' nonconflict2 %dprec 1 {
+ USE ($2); USE ($3);
+ print_look_ahead ("merge <- nonconflict1 'a' 'b' nonconflict2");
+ }
+ | conflict defstate_look 'a' nonconflict2 'b' defstate_shift %dprec 2 {
+ USE ($3); USE ($5);
+ print_look_ahead ("merge <- conflict defstate_look 'a' nonconflict2 'b'"
+ " defstate_shift");
+ }
+ ;
+
+nonconflict1:
+ {
+ print_look_ahead ("nonconflict1 <- empty string");
+ }
+ ;
+nonconflict2:
+ {
+ print_look_ahead ("nonconflict2 <- empty string");
+ }
+ | 'a' {
+ USE ($1);
+ print_look_ahead ("nonconflict2 <- 'a'");
+ }
+ ;
+conflict:
+ {
+ print_look_ahead ("conflict <- empty string");
+ }
+ ;
+defstate_look:
+ {
+ print_look_ahead ("defstate_look <- empty string");
+ }
+ ;
+
+/* yychar != YYEMPTY but lookahead need is yyfalse. */
+defstate_shift:
+ {
+ print_look_ahead ("defstate_shift <- empty string");
+ }
+ ;
+
+stack_explosion:
+ { $$ = '\0'; }
+ | alt1 stack_explosion %merge<merge> { $$ = $2; }
+ | alt2 stack_explosion %merge<merge> { $$ = $2; }
+ | alt3 stack_explosion %merge<merge> { $$ = $2; }
+ ;
+alt1:
+ 'd' no_look {
+ USE ($1);
+ if (yychar != 'd' && yychar != YYEOF)
+ {
+ fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+ }
+ }
+ ;
+alt2:
+ 'd' no_look {
+ USE ($1);
+ if (yychar != 'd' && yychar != YYEOF)
+ {
+ fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+ }
+ }
+ ;
+alt3:
+ 'd' no_look {
+ USE ($1);
+ if (yychar != 'd' && yychar != YYEOF)
+ {
+ fprintf (stderr, "Incorrect lookahead during stack explosion.\n");
+ }
+ }
+ ;
+no_look:
+ {
+ if (yychar != YYEMPTY)
+ {
+ fprintf (stderr,
+ "Found lookahead where shouldn't during stack explosion.\n");
+ }
+ }
+ ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "abcdddd";
+ static int i = 0;
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = i + 1;
+ yylval.value = input[i] + 'A' - 'a';
+ return input[i++];
+}
+
+static void
+print_look_ahead (char const *reduction)
+{
+ printf ("%s:\n yychar=", reduction);
+ if (yychar == YYEMPTY)
+ printf ("YYEMPTY");
+ else if (yychar == YYEOF)
+ printf ("YYEOF");
+ else
+ {
+ printf ("'%c', yylval='", yychar);
+ if (yylval.value > ' ')
+ printf ("%c", yylval.value);
+ printf ("', yylloc=(%d,%d),(%d,%d)",
+ yylloc.first_line, yylloc.first_column,
+ yylloc.last_line, yylloc.last_column);
+ }
+ printf ("\n");
+}
+
+static char
+merge (union YYSTYPE s1, union YYSTYPE s2)
+{
+ char dummy = s1.value + s2.value;
+ return dummy;
+}
+
+int
+main (void)
+{
+ yychar = '#'; /* Not a token in the grammar. */
+ yylval.value = '!';
+ return yyparse ();
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:1404: bison -o glr-regr14.c glr-regr14.y"
+echo glr-regression.at:1404 >$at_check_line_file
+( $at_traceon; bison -o glr-regr14.c glr-regr14.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr14.y: conflicts: 3 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1404: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:1405: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr14 glr-regr14.c \$LIBS"
+echo glr-regression.at:1405 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr14 glr-regr14.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1405: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:1420: ./glr-regr14"
+echo glr-regression.at:1420 >$at_check_line_file
+( $at_traceon; ./glr-regr14 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+$at_diff $at_devnull $at_stderr || at_failed=:
+echo >>$at_stdout; echo "conflict <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+defstate_look <- empty string:
+ yychar='a', yylval='A', yylloc=(1,1),(1,1)
+nonconflict2 <- empty string:
+ yychar='b', yylval='B', yylloc=(1,2),(1,2)
+defstate_shift <- empty string:
+ yychar=YYEMPTY
+merge <- conflict defstate_look 'a' nonconflict2 'b' defstate_shift:
+ yychar=YYEMPTY
+start <- merge 'c' stack_explosion:
+ yychar=YYEOF
+" | $at_diff - $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1420: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 156 ) # 156. glr-regression.at:1429: Leaked semantic values when reporting ambiguity
+ at_setup_line='glr-regression.at:1429'
+ at_desc='Leaked semantic values when reporting ambiguity'
+ $at_quiet $ECHO_N "156: Leaked semantic values when reporting ambiguity$ECHO_C"
+ at_xfail=no
+ (
+ echo "156. glr-regression.at:1429: testing ..."
+ $at_traceon
+
+
+cat >glr-regr15.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%glr-parser
+%destructor { parent_rhs_before_value = 0; } parent_rhs_before
+
+%{
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int parent_rhs_before_value = 0;
+# define USE(val)
+%}
+
+%%
+
+start:
+ alt1 %dprec 1
+ | alt2 %dprec 2
+ ;
+
+/* This stack must be merged into the other stacks *last* (added at the
+ beginning of the semantic options list) so that yyparse will choose to clean
+ it up rather than the tree for which some semantic actions have been
+ performed. Thus, if yyreportAmbiguity longjmp's to yyparse, the values from
+ those other trees are not cleaned up. */
+alt1: ;
+
+alt2:
+ parent_rhs_before ambiguity {
+ USE ($1);
+ parent_rhs_before_value = 0;
+ }
+ ;
+
+parent_rhs_before:
+ {
+ USE ($$);
+ parent_rhs_before_value = 1;
+ }
+ ;
+
+ambiguity: ambiguity1 | ambiguity2 ;
+ambiguity1: ;
+ambiguity2: ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ return 0;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse () != 1;
+ if (parent_rhs_before_value)
+ {
+ fprintf (stderr, "`parent_rhs_before' destructor not called.\n");
+ exit_status = 1;
+ }
+ return exit_status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:1505: bison -o glr-regr15.c glr-regr15.y"
+echo glr-regression.at:1505 >$at_check_line_file
+( $at_traceon; bison -o glr-regr15.c glr-regr15.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr15.y: conflicts: 2 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1505: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:1506: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr15 glr-regr15.c \$LIBS"
+echo glr-regression.at:1506 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr15 glr-regr15.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1506: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:1510: ./glr-regr15"
+echo glr-regression.at:1510 >$at_check_line_file
+( $at_traceon; ./glr-regr15 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax is ambiguous
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1510: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 157 ) # 157. glr-regression.at:1519: Leaked lookahead after nondeterministic parse syntax error
+ at_setup_line='glr-regression.at:1519'
+ at_desc='Leaked lookahead after nondeterministic parse syntax error'
+ $at_quiet $ECHO_N "157: Leaked lookahead after nondeterministic parse syntax error$ECHO_C"
+ at_xfail=no
+ (
+ echo "157. glr-regression.at:1519: testing ..."
+ $at_traceon
+
+cat >glr-regr16.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%glr-parser
+%destructor { lookahead_value = 0; } 'b'
+
+%{
+# include <stdlib.h>
+ static void yyerror (char const *);
+ static int yylex (void);
+ static int lookahead_value = 0;
+# define USE(val)
+%}
+
+%%
+
+start: alt1 'a' | alt2 'a' ;
+alt1: ;
+alt2: ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ static char const *input = "ab";
+ if (*input == 'b')
+ lookahead_value = 1;
+ return *input++;
+}
+
+int
+main (void)
+{
+ int exit_status = yyparse () != 1;
+ if (lookahead_value)
+ {
+ fprintf (stderr, "Lookahead destructor not called.\n");
+ exit_status = 1;
+ }
+ return exit_status;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:1571: bison -o glr-regr16.c glr-regr16.y"
+echo glr-regression.at:1571 >$at_check_line_file
+( $at_traceon; bison -o glr-regr16.c glr-regr16.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr16.y: conflicts: 1 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1571: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:1572: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr16 glr-regr16.c \$LIBS"
+echo glr-regression.at:1572 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr16 glr-regr16.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1572: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:1576: ./glr-regr16"
+echo glr-regression.at:1576 >$at_check_line_file
+( $at_traceon; ./glr-regr16 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "syntax error
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1576: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+ 158 ) # 158. glr-regression.at:1585: Uninitialized location when reporting ambiguity
+ at_setup_line='glr-regression.at:1585'
+ at_desc='Uninitialized location when reporting ambiguity'
+ $at_quiet $ECHO_N "158: Uninitialized location when reporting ambiguity$ECHO_C"
+ at_xfail=no
+ (
+ echo "158. glr-regression.at:1585: testing ..."
+ $at_traceon
+
+cat >glr-regr17.y <<'_ATEOF'
+%{
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+ /* We don't need perfect functions for these tests. */
+# undef malloc
+# undef memcmp
+# undef realloc
+#endif
+%}
+
+
+%glr-parser
+%locations
+%pure-parser
+%error-verbose
+
+%union { int dummy; }
+
+%{
+ static void yyerror (YYLTYPE *, char const *);
+ static int yylex (YYSTYPE *, YYLTYPE *);
+%}
+
+%initial-action {
+ @$.first_line = 1;
+ @$.first_column = 1;
+ @$.last_line = 1;
+ @$.last_column = 1;
+}
+
+%%
+
+/* Tests the case of an empty RHS that has inherited the location of the
+ previous nonterminal, which is unresolved. That location is reported as the
+ last position of the ambiguity. */
+start: ambig1 empty1 | ambig2 empty2 ;
+
+/* Tests multiple levels of yyresolveLocations recursion. */
+ambig1: sub_ambig1 | sub_ambig2 ;
+ambig2: sub_ambig1 | sub_ambig2 ;
+
+/* Tests the case of a non-empty RHS as well as the case of an empty RHS that
+ has inherited the initial location. The empty RHS's location is reported as
+ the first position in the ambiguity. */
+sub_ambig1: empty1 'a' 'b' ;
+sub_ambig2: empty2 'a' 'b' ;
+empty1: ;
+empty2: ;
+
+%%
+
+static void
+yyerror (YYLTYPE *locp, char const *msg)
+{
+ fprintf (stderr, "Error at %d.%d-%d.%d: %s.\n", locp->first_line,
+ locp->first_column, locp->last_line, locp->last_column, msg);
+}
+
+static int
+yylex (YYSTYPE *lvalp, YYLTYPE *llocp)
+{
+ static char const input[] = "ab";
+ static char const *inputp = input;
+ lvalp->dummy = 0;
+ llocp->first_line = llocp->last_line = 2;
+ llocp->first_column = inputp - input + 1;
+ llocp->last_column = llocp->first_column + 1;
+ return *inputp++;
+}
+
+int
+main (void)
+{
+ return yyparse () != 1;
+}
+_ATEOF
+
+
+
+$at_traceoff
+echo "glr-regression.at:1656: bison -o glr-regr17.c glr-regr17.y"
+echo glr-regression.at:1656 >$at_check_line_file
+( $at_traceon; bison -o glr-regr17.c glr-regr17.y ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "glr-regr17.y: conflicts: 3 reduce/reduce
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1656: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+$at_traceoff
+echo "glr-regression.at:1657: \$CC \$CFLAGS \$CPPFLAGS \$LDFLAGS -o glr-regr17 glr-regr17.c \$LIBS"
+echo glr-regression.at:1657 >$at_check_line_file
+( $at_traceon; $CC $CFLAGS $CPPFLAGS $LDFLAGS -o glr-regr17 glr-regr17.c $LIBS ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo stderr:; cat $at_stderr
+echo stdout:; cat $at_stdout
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1657: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+$at_traceoff
+echo "glr-regression.at:1661: ./glr-regr17"
+echo glr-regression.at:1661 >$at_check_line_file
+( $at_traceon; ./glr-regr17 ) >$at_stdout 2>$at_stder1
+at_status=$?
+grep '^ *+' $at_stder1 >&2
+grep -v '^ *+' $at_stder1 >$at_stderr
+at_failed=false
+echo >>$at_stderr; echo "Error at 1.1-2.3: syntax is ambiguous.
+" | $at_diff - $at_stderr || at_failed=:
+$at_diff $at_devnull $at_stdout || at_failed=:
+case $at_status in
+ 77) echo 77 > $at_status_file
+ exit 77;;
+ 0) ;;
+ *) echo "glr-regression.at:1661: exit code was $at_status, expected 0"
+ at_failed=:;;
+esac
+if $at_failed; then
+
+ echo 1 > $at_status_file
+ exit 1
+fi
+
+$at_traceon
+
+
+ $at_traceoff
+ $at_times_p && times >$at_times_file
+ ) 5>&1 2>&1 | eval $at_tee_pipe
+ at_status=`cat $at_status_file`
+ ;;
+
+
+ * )
+ echo "$as_me: no such test group: $at_group" >&2
+ continue
+ ;;
+ esac
+
+ # Be sure to come back to the suite directory, in particular
+ # since below we might `rm' the group directory we are in currently.
+ cd $at_suite_dir
+
+ case $at_group in
+ banner-*) ;;
+ *)
+ if test ! -f $at_check_line_file; then
+ sed "s/^ */$as_me: warning: /" <<_ATEOF
+ A failure happened in a test group before any test could be
+ run. This means that test suite is improperly designed. Please
+ report this failure to <bug-bison@gnu.org>.
+_ATEOF
+ echo "$at_setup_line" >$at_check_line_file
+ fi
+ at_group_count=`expr 1 + $at_group_count`
+ $at_verbose $ECHO_N "$at_group. $at_setup_line: $ECHO_C"
+ echo $ECHO_N "$at_group. $at_setup_line: $ECHO_C" >> $at_group_log
+ case $at_xfail:$at_status in
+ yes:0)
+ at_msg="UNEXPECTED PASS"
+ at_xpass_list="$at_xpass_list $at_group"
+ at_errexit=$at_errexit_p
+ ;;
+ no:0)
+ at_msg="ok"
+ at_pass_list="$at_pass_list $at_group"
+ at_errexit=false
+ ;;
+ *:77)
+ at_msg="skipped (`cat $at_check_line_file`)"
+ at_skip_list="$at_skip_list $at_group"
+ at_errexit=false
+ ;;
+ yes:*)
+ at_msg="expected failure (`cat $at_check_line_file`)"
+ at_xfail_list="$at_xfail_list $at_group"
+ at_errexit=false
+ ;;
+ no:*)
+ at_msg="FAILED (`cat $at_check_line_file`)"
+ at_fail_list="$at_fail_list $at_group"
+ at_errexit=$at_errexit_p
+ ;;
+ esac
+ echo $at_msg
+ at_log_msg="$at_group. $at_desc ($at_setup_line): $at_msg"
+ case $at_status in
+ 0|77)
+ # $at_times_file is only available if the group succeeded.
+ # We're not including the group log, so the success message
+ # is written in the global log separately. But we also
+ # write to the group log in case they're using -d.
+ if test -f $at_times_file; then
+ at_log_msg="$at_log_msg (`sed 1d $at_times_file`)"
+ rm -f $at_times_file
+ fi
+ echo "$at_log_msg" >> $at_group_log
+ echo "$at_log_msg" >&5
+
+ # Cleanup the group directory, unless the user wants the files.
+ $at_debug_p || rm -rf $at_group_dir
+ ;;
+ *)
+ # Upon failure, include the log into the testsuite's global
+ # log. The failure message is written in the group log. It
+ # is later included in the global log.
+ echo "$at_log_msg" >> $at_group_log
+
+ # Upon failure, keep the group directory for autopsy, and
+ # create the debugging script.
+ {
+ echo "#! /bin/sh"
+ echo 'test "${ZSH_VERSION+set}" = set && alias -g '\''${1+"$@"}'\''='\''"$@"'\'''
+ echo "cd $at_dir"
+ echo 'exec ${CONFIG_SHELL-'"$SHELL"'}' "$0" \
+ '-v -d' "$at_debug_args" "$at_group" '${1+"$@"}'
+ echo 'exit 1'
+ } >$at_group_dir/run
+ chmod +x $at_group_dir/run
+ $at_errexit && break
+ ;;
+ esac
+ ;;
+ esac
+done
+
+# Back to the top directory.
+cd $at_dir
+
+# Compute the duration of the suite.
+at_stop_date=`date`
+at_stop_time=`(date +%s) 2>/dev/null`
+echo "$as_me: ending at: $at_stop_date" >&5
+at_duration_s=`(expr $at_stop_time - $at_start_time) 2>/dev/null`
+at_duration_m=`(expr $at_duration_s / 60) 2>/dev/null`
+at_duration_h=`(expr $at_duration_m / 60) 2>/dev/null`
+at_duration_s=`(expr $at_duration_s % 60) 2>/dev/null`
+at_duration_m=`(expr $at_duration_m % 60) 2>/dev/null`
+at_duration="${at_duration_h}h ${at_duration_m}m ${at_duration_s}s"
+if test "$at_duration" != "h m s"; then
+ echo "$as_me: test suite duration: $at_duration" >&5
+fi
+
+# Wrap up the test suite with summary statistics.
+at_skip_count=`set dummy $at_skip_list; shift; echo $#`
+at_fail_count=`set dummy $at_fail_list; shift; echo $#`
+at_xpass_count=`set dummy $at_xpass_list; shift; echo $#`
+at_xfail_count=`set dummy $at_xfail_list; shift; echo $#`
+
+at_run_count=`expr $at_group_count - $at_skip_count`
+at_unexpected_count=`expr $at_xpass_count + $at_fail_count`
+at_total_fail_count=`expr $at_xfail_count + $at_fail_count`
+
+echo
+cat <<\_ASBOX
+## ------------- ##
+## Test results. ##
+## ------------- ##
+_ASBOX
+echo
+{
+ echo
+ cat <<\_ASBOX
+## ------------- ##
+## Test results. ##
+## ------------- ##
+_ASBOX
+ echo
+} >&5
+
+if test $at_run_count = 1; then
+ at_result="1 test"
+ at_were=was
+else
+ at_result="$at_run_count tests"
+ at_were=were
+fi
+if $at_errexit_p && test $at_unexpected_count != 0; then
+ if test $at_xpass_count = 1; then
+ at_result="$at_result $at_were run, one passed"
+ else
+ at_result="$at_result $at_were run, one failed"
+ fi
+ at_result="$at_result unexpectedly and inhibited subsequent tests."
+else
+ # Don't you just love exponential explosion of the number of cases?
+ case $at_xpass_count:$at_fail_count:$at_xfail_count in
+ # So far, so good.
+ 0:0:0) at_result="$at_result $at_were successful." ;;
+ 0:0:*) at_result="$at_result behaved as expected." ;;
+
+ # Some unexpected failures
+ 0:*:0) at_result="$at_result $at_were run,
+$at_fail_count failed unexpectedly." ;;
+
+ # Some failures, both expected and unexpected
+ 0:*:1) at_result="$at_result $at_were run,
+$at_total_fail_count failed ($at_xfail_count expected failure)." ;;
+ 0:*:*) at_result="$at_result $at_were run,
+$at_total_fail_count failed ($at_xfail_count expected failures)." ;;
+
+ # No unexpected failures, but some xpasses
+ *:0:*) at_result="$at_result $at_were run,
+$at_xpass_count passed unexpectedly." ;;
+
+ # No expected failures, but failures and xpasses
+ *:1:0) at_result="$at_result $at_were run,
+$at_unexpected_count did not behave as expected ($at_fail_count unexpected failure)." ;;
+ *:*:0) at_result="$at_result $at_were run,
+$at_unexpected_count did not behave as expected ($at_fail_count unexpected failures)." ;;
+
+ # All of them.
+ *:*:1) at_result="$at_result $at_were run,
+$at_xpass_count passed unexpectedly,
+$at_total_fail_count failed ($at_xfail_count expected failure)." ;;
+ *:*:*) at_result="$at_result $at_were run,
+$at_xpass_count passed unexpectedly,
+$at_total_fail_count failed ($at_xfail_count expected failures)." ;;
+ esac
+
+ if test $at_skip_count = 0 && test $at_run_count -gt 1; then
+ at_result="All $at_result"
+ fi
+fi
+
+# Now put skips in the mix.
+case $at_skip_count in
+ 0) ;;
+ 1) at_result="$at_result
+1 test was skipped." ;;
+ *) at_result="$at_result
+$at_skip_count tests were skipped." ;;
+esac
+
+if test $at_unexpected_count = 0; then
+ echo "$at_result"
+ echo "$at_result" >&5
+else
+ echo "ERROR: $at_result" >&2
+ echo "ERROR: $at_result" >&5
+ {
+ echo
+ cat <<\_ASBOX
+## ------------------------ ##
+## Summary of the failures. ##
+## ------------------------ ##
+_ASBOX
+
+ # Summary of failed and skipped tests.
+ if test $at_fail_count != 0; then
+ echo "Failed tests:"
+ $SHELL $0 $at_fail_list --list
+ echo
+ fi
+ if test $at_skip_count != 0; then
+ echo "Skipped tests:"
+ $SHELL $0 $at_skip_list --list
+ echo
+ fi
+ if test $at_xpass_count != 0; then
+ echo "Unexpected passes:"
+ $SHELL $0 $at_xpass_list --list
+ echo
+ fi
+ if test $at_fail_count != 0; then
+ cat <<\_ASBOX
+## ---------------------- ##
+## Detailed failed tests. ##
+## ---------------------- ##
+_ASBOX
+ echo
+ for at_group in $at_fail_list
+ do
+ # Normalize the test group number.
+ at_group_normalized=`expr "00000$at_group" : ".*\($at_format\)"`
+ # Create a fresh directory for the next test group, and enter.
+ at_group_dir=$at_suite_dir/$at_group_normalized
+ at_group_log=$at_group_dir/$as_me.log
+ cat $at_group_log
+ echo
+ done
+ echo
+ fi
+ if test -n "$at_top_srcdir"; then
+ sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## $at_top_builddir/config.log ##
+_ASBOX
+ sed 's/^/| /' $at_top_builddir/config.log
+ echo
+ fi
+ } >&5
+
+ sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## $as_me.log was created. ##
+_ASBOX
+
+ echo
+ echo "Please send \`$as_me.log' and all information you think might help:"
+ echo
+ echo " To: <bug-bison@gnu.org>"
+ echo " Subject: [GNU Bison 2.3] $as_me:$at_fail_list${at_fail_list:+ failed${at_xpass_list:+,}}$at_xpass_list${at_xpass_list:+ passed unexpectedly}"
+ echo
+ if test $at_debug_p = false; then
+ echo
+ echo 'You may investigate any problem if you feel able to do so, in which'
+ echo 'case the test suite provides a good starting point.'
+ echo
+ fi
+ exit 1
+fi
+
+exit 0
+
+
diff --git a/tests/testsuite.at b/tests/testsuite.at
new file mode 100644
index 0000000..10bb3d8
--- /dev/null
+++ b/tests/testsuite.at
@@ -0,0 +1,66 @@
+# Process this file with autom4te to create testsuite. -*- Autotest -*-
+
+# Test suite for GNU Bison.
+# Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+
+# Testing resistance to user bugs.
+m4_include([input.at])
+
+# Testing output file names.
+m4_include([output.at])
+
+# Testing the part of the engine that computes FOLLOW etc.
+m4_include([sets.at])
+
+# Testing grammar reduction.
+m4_include([reduce.at])
+
+# Testing that #lines are correct.
+m4_include([synclines.at])
+
+# Testing that headers are sane.
+m4_include([headers.at])
+
+# Testing that user actions are properly performed.
+m4_include([actions.at])
+
+# Testing conflicts detection and resolution.
+m4_include([conflicts.at])
+
+# Fulling testing (compilation and execution of the parser) on calc.
+m4_include([calc.at])
+
+# Huge artificial grammars.
+# Torturing the stack expansion at runtime.
+m4_include([torture.at])
+
+# Checking big, real world grammars.
+m4_include([existing.at])
+
+# Some old bugs.
+m4_include([regression.at])
+
+# Some C++ specific tests.
+m4_include([c++.at])
+
+# GLR tests:
+# C++ types, simplified
+m4_include([cxx-type.at])
+# Regression tests
+m4_include([glr-regression.at])
diff --git a/tests/torture.at b/tests/torture.at
new file mode 100644
index 0000000..ff373c2
--- /dev/null
+++ b/tests/torture.at
@@ -0,0 +1,483 @@
+# Torturing Bison. -*- Autotest -*-
+# Copyright (C) 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+AT_BANNER([[Torture Tests.]])
+
+
+# AT_INCREASE_DATA_SIZE(SIZE)
+# ---------------------------
+# Try to increase the data size to SIZE KiB if possible.
+m4_define([AT_INCREASE_DATA_SIZE],
+[data_limit=`(ulimit -S -d) 2>/dev/null`
+case $data_limit in
+[[0-9]]*)
+ if test "$data_limit" -lt $1; then
+ AT_CHECK([ulimit -S -d $1 || exit 77])
+ ulimit -S -d $1
+ fi
+esac])
+
+
+## ------------------------------------- ##
+## Creating a large artificial grammar. ##
+## ------------------------------------- ##
+
+# AT_DATA_TRIANGULAR_GRAMMAR(FILE-NAME, SIZE)
+# -------------------------------------------
+# Create FILE-NAME, containing a self checking parser for a huge
+# triangular grammar.
+m4_define([AT_DATA_TRIANGULAR_GRAMMAR],
+[AT_DATA([[gengram.pl]],
+[[#! /usr/bin/perl -w
+
+use strict;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+]AT_DATA_GRAMMAR_PROLOGUE[
+%error-verbose
+%debug
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+%union
+{
+ int val;
+};
+
+%token END "end"
+%type <val> exp input
+EOF
+
+for my $size (1 .. $max)
+ {
+ print "%token t$size $size \"$size\"\n";
+ };
+
+print <<EOF;
+%%
+input:
+ exp { if (\@S|@1 != 0) abort (); \$\$ = \@S|@1; }
+| input exp { if (\@S|@2 != \@S|@1 + 1) abort (); \$\$ = \@S|@2; }
+;
+
+exp:
+ END
+ { \$\$ = 0; }
+EOF
+
+for my $size (1 .. $max)
+ {
+ use Text::Wrap;
+ print wrap ("| ", " ",
+ (map { "\"$_\"" } (1 .. $size)),
+ " END \n"),
+ " { \$\$ = $size; }\n";
+ };
+print ";\n";
+
+print <<EOF;
+%%
+static int
+yylex (void)
+{
+ static int inner = 1;
+ static int outer = 0;
+ if (outer > $max)
+ return 0;
+ else if (inner > outer)
+ {
+ inner = 1;
+ ++outer;
+ return END;
+ }
+ return inner++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\\n", msg);
+}
+
+int
+main (void)
+{
+ yydebug = !!getenv ("YYDEBUG");
+ return yyparse ();
+}
+EOF
+]])
+
+AT_CHECK([perl -w ./gengram.pl $2 || exit 77], 0, [stdout])
+mv stdout $1
+])
+
+
+## -------------- ##
+## Big triangle. ##
+## -------------- ##
+
+AT_SETUP([Big triangle])
+
+# I have been able to go up to 2000 on my machine.
+# I tried 3000, a 29Mb grammar file, but then my system killed bison.
+# With 500 and the new parser, which consume far too much memory,
+# it gets killed too. Of course the parser is to be cleaned.
+AT_DATA_TRIANGULAR_GRAMMAR([input.y], [200])
+AT_CHECK([bison -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])
+
+AT_CLEANUP
+
+
+
+# AT_DATA_HORIZONTAL_GRAMMAR(FILE-NAME, SIZE)
+# -------------------------------------------
+# Create FILE-NAME, containing a self checking parser for a huge
+# horizontal grammar.
+m4_define([AT_DATA_HORIZONTAL_GRAMMAR],
+[AT_DATA([[gengram.pl]],
+[[#! /usr/bin/perl -w
+
+use strict;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+]AT_DATA_GRAMMAR_PROLOGUE[
+%error-verbose
+%debug
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+
+%token
+EOF
+for my $size (1 .. $max)
+ {
+ print " t$size $size \"$size\"\n";
+ };
+
+print <<EOF;
+
+%%
+EOF
+
+use Text::Wrap;
+print
+ wrap ("exp: ", " ",
+ (map { "\"$_\"" } (1 .. $max)), ";"),
+ "\n";
+
+print <<EOF;
+%%
+static int
+yylex (void)
+{
+ static int counter = 1;
+ if (counter > $max)
+ return 0;
+ else
+ return counter++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\\n", msg);
+}
+
+int
+main (void)
+{
+ yydebug = !!getenv ("YYDEBUG");
+ return yyparse ();
+}
+EOF
+]])
+
+AT_CHECK([perl -w ./gengram.pl $2 || exit 77], 0, [stdout])
+mv stdout $1
+])
+
+
+## ---------------- ##
+## Big horizontal. ##
+## ---------------- ##
+
+AT_SETUP([Big horizontal])
+
+# I have been able to go up to 10000 on my machine, but I had to
+# increase the maximum stack size (* 100). It gave:
+#
+# input.y 263k
+# input.tab.c 1.3M
+# input 453k
+#
+# gengram.pl 10000 0.70s user 0.01s sys 99% cpu 0.711 total
+# bison input.y 730.56s user 0.53s sys 99% cpu 12:12.34 total
+# gcc -Wall input.tab.c -o input 5.81s user 0.20s sys 100% cpu 6.01 total
+# ./input 0.00s user 0.01s sys 108% cpu 0.01 total
+#
+AT_DATA_HORIZONTAL_GRAMMAR([input.y], [1000])
+
+# GNU m4 requires about 70 MiB for this test on a 32-bit host.
+# Ask for 200 MiB, which should be plenty even on a 64-bit host.
+AT_INCREASE_DATA_SIZE(204000)
+
+AT_CHECK([bison -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])
+
+AT_CLEANUP
+
+
+
+# AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR(FILE-NAME, SIZE)
+# --------------------------------------------------
+# Create FILE-NAME, containing a self checking parser for a grammar
+# requiring SIZE look-ahead tokens.
+m4_define([AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR],
+[AT_DATA([[gengram.pl]],
+[[#! /usr/bin/perl -w
+
+use strict;
+use Text::Wrap;
+my $max = $ARGV[0] || 10;
+
+print <<EOF;
+%error-verbose
+%debug
+%{
+# include <stdio.h>
+# include <stdlib.h>
+# include <assert.h>
+
+static int yylex (void);
+static void yyerror (const char *msg);
+%}
+%union
+{
+ int val;
+};
+
+%type <val> input exp
+%token token
+EOF
+
+print
+ wrap ("%type <val> ",
+ " ",
+ map { "n$_" } (1 .. $max)),
+ "\n";
+
+print "%token\n";
+for my $count (1 .. $max)
+ {
+ print " t$count $count \"$count\"\n";
+ };
+
+print <<EOF;
+%%
+input:
+ exp { assert (\@S|@1 == 1); \$\$ = \@S|@1; }
+| input exp { assert (\@S|@2 == \@S|@1 + 1); \$\$ = \@S|@2; }
+;
+
+exp:
+ n1 "1" { assert (\@S|@1 == 1); \@S|@\@S|@ = \@S|@1; }
+EOF
+
+for my $count (2 .. $max)
+ {
+ print "| n$count \"$count\" { assert (\@S|@1 == $count); \@S|@\@S|@ = \@S|@1; }\n";
+ };
+print ";\n";
+
+for my $count (1 .. $max)
+ {
+ print "n$count: token { \$\$ = $count; };\n";
+ };
+
+print <<EOF;
+%%
+static int
+yylex (void)
+{
+ static int return_token = 1;
+ static int counter = 1;
+ if (counter > $max)
+ return 0;
+ if (return_token)
+ {
+ return_token = 0;
+ return token;
+ }
+ return_token = 1;
+ return counter++;
+}
+
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\\n", msg);
+}
+
+int
+main (void)
+{
+ yydebug = !!getenv ("YYDEBUG");
+ return yyparse ();
+}
+EOF
+]])
+
+AT_CHECK([perl -w ./gengram.pl $2 || exit 77], 0, [stdout])
+mv stdout $1
+])
+
+
+## ------------------------ ##
+## Many look-ahead tokens. ##
+## ------------------------ ##
+
+AT_SETUP([Many look-ahead tokens])
+
+AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR([input.y], [1000])
+
+# GNU m4 requires about 70 MiB for this test on a 32-bit host.
+# Ask for 200 MiB, which should be plenty even on a 64-bit host.
+AT_INCREASE_DATA_SIZE(204000)
+
+AT_CHECK([bison -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input])
+
+AT_CLEANUP
+
+
+
+# AT_DATA_STACK_TORTURE(C-PROLOGUE)
+# ---------------------------------
+# A parser specialized in torturing the stack size.
+m4_define([AT_DATA_STACK_TORTURE],
+[# A grammar of parens growing the stack thanks to right recursion.
+# exp:
+AT_DATA([input.y],
+[[%{
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+]$1[
+ static int yylex (void);
+ static void yyerror (const char *msg);
+%}
+%error-verbose
+%debug
+%token WAIT_FOR_EOF
+%%
+exp: WAIT_FOR_EOF exp | ;
+%%
+static void
+yyerror (const char *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+ if (yylval--)
+ return WAIT_FOR_EOF;
+ else
+ return EOF;
+}
+
+int
+main (int argc, const char **argv)
+{
+ char *endp;
+ if (argc != 2)
+ abort ();
+ yylval = strtol (argv[1], &endp, 10);
+ if (! (argv[1] != endp
+ && 0 <= yylval && yylval <= INT_MAX
+ && errno != ERANGE))
+ abort ();
+ yydebug = 1;
+ return yyparse ();
+}
+]])
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input])
+])
+
+
+## -------------------------------------- ##
+## Exploding the Stack Size with Alloca. ##
+## -------------------------------------- ##
+
+AT_SETUP([Exploding the Stack Size with Alloca])
+
+AT_DATA_STACK_TORTURE([[
+#if (defined __GNUC__ || defined __BUILTIN_VA_ARG_INCR \
+ || defined _AIX || defined _MSC_VER || defined _ALLOCA_H)
+# define YYSTACK_USE_ALLOCA 1
+#endif
+]])
+
+# Below the limit of 200.
+AT_PARSER_CHECK([./input 20], 0, [], [ignore])
+# Two enlargements: 2 * 2 * 200.
+AT_PARSER_CHECK([./input 900], 0, [], [ignore])
+# Fails: beyond the limit of 10,000 (which we don't reach anyway since we
+# multiply by two starting at 200 => 5120 is the last possible).
+AT_PARSER_CHECK([./input 10000], 2, [], [ignore])
+
+AT_CLEANUP
+
+
+
+
+## -------------------------------------- ##
+## Exploding the Stack Size with Malloc. ##
+## -------------------------------------- ##
+
+AT_SETUP([Exploding the Stack Size with Malloc])
+
+AT_DATA_STACK_TORTURE([[#define YYSTACK_USE_ALLOCA 0]])
+
+# Below the limit of 200.
+AT_PARSER_CHECK([./input 20], 0, [], [ignore])
+# Two enlargements: 2 * 2 * 200.
+AT_PARSER_CHECK([./input 900], 0, [], [ignore])
+# Fails: beyond the limit of 10,000 (which we don't reach anyway since we
+# multiply by two starting at 200 => 5120 is the possible).
+AT_PARSER_CHECK([./input 10000], 2, [], [ignore])
+
+AT_CLEANUP