Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 1 | %{ |
| 2 | /* Copyright (C) 2004, 2005, 2007, 2008 Red Hat, Inc. |
| 3 | Written by Ulrich Drepper <drepper@redhat.com>, 2004. |
| 4 | |
| 5 | Red Hat elfutils is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by the |
| 7 | Free Software Foundation; version 2 of the License. |
| 8 | |
| 9 | Red Hat elfutils is distributed in the hope that it will be useful, but |
| 10 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License along |
| 15 | with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 16 | Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 17 | |
| 18 | Red Hat elfutils is an included package of the Open Invention Network. |
| 19 | An included package of the Open Invention Network is a package for which |
| 20 | Open Invention Network licensees cross-license their patents. No patent |
| 21 | license is granted, either expressly or impliedly, by designation as an |
| 22 | included package. Should you wish to participate in the Open Invention |
| 23 | Network licensing program, please visit www.openinventionnetwork.com |
| 24 | <http://www.openinventionnetwork.com>. */ |
| 25 | |
| 26 | #ifdef HAVE_CONFIG_H |
| 27 | # include <config.h> |
| 28 | #endif |
| 29 | |
| 30 | #include <ctype.h> |
| 31 | #include <error.h> |
| 32 | #include <libintl.h> |
| 33 | |
| 34 | #include <system.h> |
| 35 | #include "i386_parse.h" |
| 36 | |
| 37 | |
| 38 | static void eat_to_eol (void); |
| 39 | static void invalid_char (int ch); |
| 40 | %} |
| 41 | |
| 42 | ID [a-zA-Z_][a-zA-Z0-9_/]* |
| 43 | ID2 [a-zA-Z0-9_:/]* |
| 44 | NUMBER [0-9]+ |
| 45 | WHITE [[:space:]]+ |
| 46 | |
| 47 | %option yylineno |
| 48 | %option never-interactive |
| 49 | %option noyywrap |
| 50 | |
| 51 | |
| 52 | %x MAIN |
| 53 | |
| 54 | %% |
| 55 | |
| 56 | "%mask" { return kMASK; } |
| 57 | |
| 58 | "%prefix" { return kPREFIX; } |
| 59 | "%suffix" { return kSUFFIX; } |
| 60 | |
| 61 | "%synonym" { return kSYNONYM; } |
| 62 | |
| 63 | {NUMBER} { i386_lval.num = strtoul (yytext, NULL, 10); |
| 64 | return kNUMBER; } |
| 65 | |
| 66 | "%%" { BEGIN (MAIN); return kPERCPERC; } |
| 67 | |
| 68 | |
| 69 | <MAIN>"0" { return '0'; } |
| 70 | <MAIN>"1" { return '1'; } |
| 71 | |
| 72 | <INITIAL,MAIN>"{"{ID2}"}" { i386_lval.str = xstrndup (yytext + 1, |
| 73 | yyleng - 2); |
| 74 | return kBITFIELD; } |
| 75 | |
| 76 | <MAIN>"INVALID" { i386_lval.str = (void *) -1l; |
| 77 | return kID; } |
| 78 | |
| 79 | <MAIN>{ID} { i386_lval.str = xstrndup (yytext, yyleng); |
| 80 | return kID; } |
| 81 | |
| 82 | <MAIN>"," { return ','; } |
| 83 | |
| 84 | <MAIN>":" { return ':'; } |
| 85 | |
| 86 | <INITIAL,MAIN>^"\n" { /* IGNORE */ } |
| 87 | |
| 88 | <INITIAL,MAIN>"\n" { return '\n'; } |
| 89 | |
| 90 | <INITIAL,MAIN>^"#" { eat_to_eol (); } |
| 91 | |
| 92 | {WHITE} { /* IGNORE */ } |
| 93 | |
| 94 | <MAIN>{WHITE} { return kSPACE; } |
| 95 | |
| 96 | <MAIN>. { i386_lval.ch = *yytext; return kCHAR; } |
| 97 | |
| 98 | . { invalid_char (*yytext); } |
| 99 | |
| 100 | |
| 101 | %% |
| 102 | |
| 103 | static void |
| 104 | eat_to_eol (void) |
| 105 | { |
| 106 | while (1) |
| 107 | { |
| 108 | int c = input (); |
| 109 | |
| 110 | if (c == EOF || c == '\n') |
| 111 | break; |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | static void |
| 116 | invalid_char (int ch) |
| 117 | { |
| 118 | error (0, 0, (isascii (ch) |
| 119 | ? gettext ("invalid character '%c' at line %d; ignored") |
| 120 | : gettext ("invalid character '\\%o' at line %d; ignored")), |
| 121 | ch, yylineno); |
| 122 | } |
| 123 | |
| 124 | // Local Variables: |
| 125 | // mode: C |
| 126 | // End: |