Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | b9f8d6e | 1995-01-04 19:08:09 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 32 | /* List a node on a file */ |
| 33 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 34 | #include "pgenheaders.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 35 | #include "token.h" |
| 36 | #include "node.h" |
| 37 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 38 | /* Forward */ |
| 39 | static void list1node PROTO((FILE *, node *)); |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 40 | static void listnode PROTO((FILE *, node *)); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 41 | |
| 42 | void |
| 43 | listtree(n) |
| 44 | node *n; |
| 45 | { |
| 46 | listnode(stdout, n); |
| 47 | } |
| 48 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 49 | static int level, atbol; |
| 50 | |
Guido van Rossum | 9e90a67 | 1993-06-24 11:10:19 +0000 | [diff] [blame] | 51 | static void |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 52 | listnode(fp, n) |
| 53 | FILE *fp; |
| 54 | node *n; |
| 55 | { |
| 56 | level = 0; |
| 57 | atbol = 1; |
| 58 | list1node(fp, n); |
| 59 | } |
| 60 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 61 | static void |
| 62 | list1node(fp, n) |
| 63 | FILE *fp; |
| 64 | node *n; |
| 65 | { |
| 66 | if (n == 0) |
| 67 | return; |
| 68 | if (ISNONTERMINAL(TYPE(n))) { |
| 69 | int i; |
| 70 | for (i = 0; i < NCH(n); i++) |
| 71 | list1node(fp, CHILD(n, i)); |
| 72 | } |
| 73 | else if (ISTERMINAL(TYPE(n))) { |
| 74 | switch (TYPE(n)) { |
| 75 | case INDENT: |
| 76 | ++level; |
| 77 | break; |
| 78 | case DEDENT: |
| 79 | --level; |
| 80 | break; |
| 81 | default: |
| 82 | if (atbol) { |
| 83 | int i; |
| 84 | for (i = 0; i < level; ++i) |
| 85 | fprintf(fp, "\t"); |
| 86 | atbol = 0; |
| 87 | } |
| 88 | if (TYPE(n) == NEWLINE) { |
| 89 | if (STR(n) != NULL) |
| 90 | fprintf(fp, "%s", STR(n)); |
| 91 | fprintf(fp, "\n"); |
| 92 | atbol = 1; |
| 93 | } |
| 94 | else |
| 95 | fprintf(fp, "%s ", STR(n)); |
| 96 | break; |
| 97 | } |
| 98 | } |
| 99 | else |
| 100 | fprintf(fp, "? "); |
| 101 | } |