/[CvsGraph]/cvsgraph/readconf.c
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Annotate of /cvsgraph/readconf.c

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Revision 1.17 - (show annotations)
Sun Aug 29 12:07:05 2004 UTC (13 years, 1 month ago) by bertho
Branch: MAIN
Changes since 1.16: +5 -2 lines
File MIME type: text/plain
- Add patch from Henrik Carlqvist <henca {at} users.SourceForge.net>
	* add option rev_hidenumber for disabling revision number display.
	* add option tag_ignore_merge for disabling merge_from/merge_to display
	  if matched with tag_ignore.
- Add option merge_findall so that merge_from/merge_to tags can have multiple
  matches.
- Fix some whitespace to tab.
1 /*
2 * CvsGraph graphical representation generator of brances and revisions
3 * of a file in cvs/rcs.
4 *
5 * Copyright (C) 2001,2002 B. Stultiens
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 /*#define DEBUG 1*/
23
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <ctype.h>
28 #include <assert.h>
29
30 #include <gd.h>
31 #include <gdfontt.h>
32 #include <gdfonts.h>
33 #include <gdfontmb.h>
34 #include <gdfontl.h>
35 #include <gdfontg.h>
36
37 #include "utils.h"
38 #include "cvsgraph.h"
39 #include "readconf.h"
40
41 int line_number;
42
43 typedef struct
44 {
45 char *keyword;
46 int type;
47 union {
48 void *v; /* join of other values */
49 int *i;
50 font_t *f;
51 char **s;
52 color_t *c;
53 double *d;
54 INTTYPE val;
55 } confref;
56 } keyword_t;
57
58 typedef union {
59 keyword_t *kw;
60 int i;
61 double d;
62 char *str;
63 } YYSTYPE;
64
65 static YYSTYPE yylval;
66
67 static int nstacked_opts;
68 static char **stacked_opts;
69
70 enum {
71 TYPE_dummy = 256,
72 TYPE_KEYWORD,
73 TYPE_NUMBER,
74 TYPE_VALUE,
75 TYPE_BOOLEAN,
76 TYPE_COLOR,
77 TYPE_FONT,
78 TYPE_STRING,
79 TYPE_DOUBLE
80 };
81
82 static keyword_t keywords[] = {
83 { "branch_bgcolor", TYPE_COLOR, { &conf.branch_bgcolor } },
84 { "branch_bspace", TYPE_NUMBER, { &conf.branch_bspace } },
85 { "branch_color", TYPE_COLOR, { &conf.branch_color } },
86 { "branch_font", TYPE_FONT, { &conf.branch_font.gdfont } },
87 { "branch_ttfont", TYPE_STRING, { &conf.branch_font.ttfont } },
88 { "branch_ttsize", TYPE_DOUBLE, { &conf.branch_font.ttsize } },
89 { "branch_tag_color", TYPE_COLOR, { &conf.branch_tag_color } },
90 { "branch_tag_font", TYPE_FONT, { &conf.branch_tag_font.gdfont } },
91 { "branch_tag_ttfont", TYPE_STRING, { &conf.branch_tag_font.ttfont } },
92 { "branch_tag_ttsize", TYPE_DOUBLE, { &conf.branch_tag_font.ttsize } },
93 { "branch_lspace", TYPE_NUMBER, { &conf.branch_lspace } },
94 { "branch_rspace", TYPE_NUMBER, { &conf.branch_rspace } },
95 { "branch_tspace", TYPE_NUMBER, { &conf.branch_tspace } },
96 { "branch_connect", TYPE_NUMBER, { &conf.branch_connect } },
97 { "branch_margin", TYPE_NUMBER, { &conf.branch_margin } },
98 { "branch_dupbox", TYPE_BOOLEAN, { &conf.branch_dupbox } },
99 { "branch_fold", TYPE_BOOLEAN, { &conf.branch_fold } },
100 { "branch_foldall", TYPE_BOOLEAN, { &conf.branch_foldall } },
101 { "branch_subtree", TYPE_STRING, { &conf.branch_subtree } },
102 { "upside_down", TYPE_BOOLEAN, { &conf.upside_down } },
103 { "left_right", TYPE_BOOLEAN, { &conf.left_right } },
104 { "auto_stretch", TYPE_BOOLEAN, { &conf.auto_stretch } },
105 { "color_bg", TYPE_COLOR, { &conf.color_bg } },
106 { "transparent_bg", TYPE_BOOLEAN, { &conf.transparent_bg } },
107 { "cvsmodule", TYPE_STRING, { &conf.cvsmodule } },
108 { "cvsroot", TYPE_STRING, { &conf.cvsroot } },
109 { "date_format", TYPE_STRING, { &conf.date_format } },
110 { "box_shadow", TYPE_BOOLEAN, { &conf.box_shadow } },
111 { "strip_untagged", TYPE_BOOLEAN, { &conf.strip_untagged } },
112 { "strip_first_rev", TYPE_BOOLEAN, { &conf.strip_first_rev } },
113 { "anti_alias", TYPE_BOOLEAN, { &conf.anti_alias } },
114 { "use_ttf", TYPE_BOOLEAN, { &conf.use_ttf } },
115 { "parse_logs", TYPE_BOOLEAN, { &conf.parse_logs } },
116 { "html_level", TYPE_NUMBER, { &conf.html_level } },
117 { "thick_lines", TYPE_NUMBER, { &conf.thick_lines } },
118 { "msg_color", TYPE_COLOR, { &conf.msg_color } },
119 { "msg_font", TYPE_FONT, { &conf.msg_font.gdfont } },
120 { "msg_ttfont", TYPE_STRING, { &conf.msg_font.ttfont } },
121 { "msg_ttsize", TYPE_DOUBLE, { &conf.msg_font.ttsize } },
122 { "rev_hidenumber", TYPE_BOOLEAN, { &conf.rev_hidenumber } },
123 { "rev_color", TYPE_COLOR, { &conf.rev_color } },
124 { "rev_bgcolor", TYPE_COLOR, { &conf.rev_bgcolor } },
125 { "rev_font", TYPE_FONT, { &conf.rev_font.gdfont } },
126 { "rev_ttfont", TYPE_STRING, { &conf.rev_font.ttfont } },
127 { "rev_ttsize", TYPE_DOUBLE, { &conf.rev_font.ttsize } },
128 { "rev_separator", TYPE_NUMBER, { &conf.rev_separator } },
129 { "rev_minline", TYPE_NUMBER, { &conf.rev_minline } },
130 { "rev_maxline", TYPE_NUMBER, { &conf.rev_maxline } },
131 { "rev_lspace", TYPE_NUMBER, { &conf.rev_lspace } },
132 { "rev_rspace", TYPE_NUMBER, { &conf.rev_rspace } },
133 { "rev_tspace", TYPE_NUMBER, { &conf.rev_tspace } },
134 { "rev_bspace", TYPE_NUMBER, { &conf.rev_bspace } },
135 { "rev_text", TYPE_STRING, { &conf.rev_text } },
136 { "rev_text_color", TYPE_COLOR, { &conf.rev_text_color } },
137 { "rev_text_font", TYPE_FONT, { &conf.rev_text_font.gdfont } },
138 { "rev_text_ttfont", TYPE_STRING, { &conf.rev_text_font.ttfont } },
139 { "rev_text_ttsize", TYPE_DOUBLE, { &conf.rev_text_font.ttsize } },
140 { "rev_maxtags", TYPE_NUMBER, { &conf.rev_maxtags } },
141 { "merge_color", TYPE_COLOR, { &conf.merge_color } },
142 { "merge_from", TYPE_STRING, { &conf.merge_from } },
143 { "merge_to", TYPE_STRING, { &conf.merge_to } },
144 { "merge_findall", TYPE_BOOLEAN, { &conf.merge_findall } },
145 { "merge_front", TYPE_BOOLEAN, { &conf.merge_front } },
146 { "merge_nocase", TYPE_BOOLEAN, { &conf.merge_nocase } },
147 { "merge_arrows", TYPE_BOOLEAN, { &conf.merge_arrows } },
148 { "arrow_width", TYPE_NUMBER, { &conf.arrow_width } },
149 { "arrow_length", TYPE_NUMBER, { &conf.arrow_length } },
150 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
151 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
152 { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
153 { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
154 { "tag_ignore", TYPE_STRING, { &conf.tag_ignore } },
155 { "tag_ignore_merge", TYPE_BOOLEAN, { &conf.tag_ignore_merge } },
156 { "tag_nocase", TYPE_BOOLEAN, { &conf.tag_nocase } },
157 { "tag_negate", TYPE_BOOLEAN, { &conf.tag_negate } },
158 { "title", TYPE_STRING, { &conf.title } },
159 { "title_x", TYPE_NUMBER, { &conf.title_x } },
160 { "title_y", TYPE_NUMBER, { &conf.title_y } },
161 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
162 { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
163 { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
164 { "title_align", TYPE_NUMBER, { &conf.title_align } },
165 { "title_color", TYPE_COLOR, { &conf.title_color } },
166 { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
167 { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
168 { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
169 { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
170 { "image_type", TYPE_NUMBER, { &conf.image_type } },
171 { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
172 { "map_name", TYPE_STRING, { &conf.map_name } },
173 { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
174 { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
175 { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
176 { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
177 { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
178 { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
179 { "map_merge_href", TYPE_STRING, { &conf.map_merge_href } },
180 { "map_merge_alt", TYPE_STRING, { &conf.map_merge_alt } },
181 { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
182 { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
183 { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
184 { "true", TYPE_VALUE, { (void *)1 } },
185 { "false", TYPE_VALUE, { (void *)0 } },
186 { "not", TYPE_VALUE, { (void *)-1 } },
187 { "left", TYPE_VALUE, { (void *)0 } },
188 { "center", TYPE_VALUE, { (void *)1 } },
189 { "right", TYPE_VALUE, { (void *)2 } },
190 { "tiny", TYPE_VALUE, { (void *)0 } },
191 { "small", TYPE_VALUE, { (void *)1 } },
192 { "medium", TYPE_VALUE, { (void *)2 } },
193 { "large", TYPE_VALUE, { (void *)3 } },
194 { "giant", TYPE_VALUE, { (void *)4 } },
195 { "HTML3", TYPE_VALUE, { (void *)1 } },
196 { "HTML4", TYPE_VALUE, { (void *)2 } },
197 { "XHTML", TYPE_VALUE, { (void *)3 } },
198 };
199
200 #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
201
202 static int cmp_kw(const void *k1, const void *k2)
203 {
204 return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
205 }
206
207 /*
208 **************************************************************************
209 * Debug routines
210 **************************************************************************
211 */
212 #ifdef DEBUG
213 #define DEBUGSTREAM stdout
214 static void debug_pname(const char *n)
215 {
216 fprintf(DEBUGSTREAM, "%-16s: ", n);
217 }
218
219 static void debug_pstring(const char *n, const char *a)
220 {
221 debug_pname(n);
222 if(!a)
223 fprintf(DEBUGSTREAM, "<not-set>\n");
224 else
225 {
226 fputc('\'', DEBUGSTREAM);
227 for(; *a; a++)
228 {
229 if(isprint(*a))
230 fputc(*a, DEBUGSTREAM);
231 else
232 {
233 fputc('\\', DEBUGSTREAM);
234 switch(*a)
235 {
236 case '\a': fputc('a', DEBUGSTREAM); break;
237 case '\b': fputc('b', DEBUGSTREAM); break;
238 case '\f': fputc('f', DEBUGSTREAM); break;
239 case '\n': fputc('n', DEBUGSTREAM); break;
240 case '\r': fputc('r', DEBUGSTREAM); break;
241 case '\t': fputc('t', DEBUGSTREAM); break;
242 case '\v': fputc('v', DEBUGSTREAM); break;
243 default:
244 fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
245 }
246 }
247 }
248 fprintf(DEBUGSTREAM, "'\n");
249 }
250 }
251
252 static void debug_pbool(const char *n, int b)
253 {
254 debug_pname(n);
255 fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
256 }
257
258 static void debug_pint(const char *n, int i)
259 {
260 debug_pname(n);
261 fprintf(DEBUGSTREAM, "%i\n", i);
262 }
263
264 static void debug_pdouble(const char *n, double d)
265 {
266 debug_pname(n);
267 fprintf(DEBUGSTREAM, "%g\n", d);
268 }
269
270 static void debug_pfont(const char *n, gdFontPtr f)
271 {
272 const char *s = "<Unknown font>";
273 debug_pname(n);
274 if(f == gdFontTiny)
275 s = "gdFontTiny";
276 else if(f == gdFontSmall)
277 s = "gdFontSmall";
278 else if(f == gdFontMediumBold)
279 s = "gdFontMediumBold";
280 else if(f == gdFontLarge)
281 s = "gdFontLarge";
282 else if(f == gdFontGiant)
283 s = "gdFontGiant";
284 fprintf(DEBUGSTREAM, "%s\n", s);
285 }
286
287 static void debug_pcolor(const char *n, color_t *c)
288 {
289 debug_pname(n);
290 fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
291 }
292
293 void dump_config(void)
294 {
295 debug_pstring("cvsroot", conf.cvsroot);
296 debug_pstring("cvsmodule", conf.cvsmodule);
297 debug_pstring("date_format", conf.date_format);
298
299 debug_pcolor("color_bg", &conf.color_bg);
300 debug_pbool("box_shadow", conf.box_shadow);
301 debug_pbool("upside_down", conf.upside_down);
302 debug_pbool("left_right", conf.left_right);
303 debug_pbool("strip_untagged", conf.strip_untagged);
304 debug_pbool("strip_first_rev", conf.strip_first_rev);
305 debug_pbool("auto_stretch", conf.auto_stretch);
306 debug_pbool("anti_alias", conf.anti_alias);
307 debug_pbool("use_ttf", conf.use_ttf);
308 debug_pint("thick_lines", conf.thick_lines);
309
310 debug_pfont("tag_font", conf.tag_font.gdfont);
311 debug_pstring("tag_ttfont", conf.tag_font.ttfont);
312 debug_psouble("tag_ttsize", conf.tag_font.ttsize);
313 debug_pcolor("tag_color", &conf.tag_color);
314
315 debug_pfont("rev_font", conf.rev_font.gdfont);
316 debug_pstring("rev_ttfont", conf.rev_font.ttfont);
317 debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
318 debug_pcolor("rev_color", &conf.rev_color);
319 debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
320 debug_pint("rev_separator", conf.rev_separator);
321 debug_pint("rev_minline", conf.rev_minline);
322 debug_pint("rev_maxline", conf.rev_maxline);
323 debug_pint("rev_lspace", conf.rev_lspace);
324 debug_pint("rev_rspace", conf.rev_rspace);
325 debug_pint("rev_tspace", conf.rev_tspace);
326 debug_pint("rev_bspace", conf.rev_bspace);
327 debug_pstring("rev_text", conf.rev_text);
328 debug_pcolor("rev_text_color", &conf.rev_text_color);
329 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
330 debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
331 debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
332
333 debug_pfont("branch_font", conf.branch_font.gdfont);
334 debug_pstring("branch_ttfont", conf.branch_font.ttfont);
335 debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
336 debug_pcolor("branch_color", &conf.branch_color);
337 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
338 debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
339 debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
340 debug_pcolor("branch_tag_color", &conf.branch_tag_color);
341 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
342 debug_pint("branch_lspace", conf.branch_lspace);
343 debug_pint("branch_rspace", conf.branch_rspace);
344 debug_pint("branch_tspace", conf.branch_tspace);
345 debug_pint("branch_bspace", conf.branch_bspace);
346 debug_pint("branch_connect", conf.branch_connect);
347 debug_pint("branch_margin", conf.branch_margin);
348 debug_pint("branch_dupbox", conf.branch_dupbox);
349
350 debug_pstring("title", conf.title);
351 debug_pint("title_x", conf.title_x);
352 debug_pint("title_y", conf.title_y);
353 debug_pfont("title_font", conf.title_font.gdfont);
354 debug_pstring("title_ttfont", conf.title_font.ttfont);
355 debug_pdouble("title_ttsize", conf.title_font.ttsize);
356 debug_pint("title_align", conf.title_align);
357 debug_pcolor("title_color", &conf.title_color);
358
359 debug_pint("margin_top", conf.margin_top);
360 debug_pint("margin_bottom", conf.margin_bottom);
361 debug_pint("margin_left", conf.margin_left);
362 debug_pint("margin_right", conf.margin_right);
363
364 debug_pint("image_type", conf.image_type);
365 debug_pint("image_quality", conf.image_quality);
366
367 debug_pstring("map_name", conf.map_name);
368 debug_pstring("map_branch_href", conf.map_branch_href);
369 debug_pstring("map_branch_alt", conf.map_branch_alt);
370 debug_pstring("map_rev_href", conf.map_rev_href);
371 debug_pstring("map_rev_alt", conf.map_rev_alt);
372 debug_pstring("map_diff_href", conf.map_diff_href);
373 debug_pstring("map_diff_alt", conf.map_diff_alt);
374
375 debug_pstring("expand[0]", conf.expand[0]);
376 debug_pstring("expand[1]", conf.expand[1]);
377 debug_pstring("expand[2]", conf.expand[2]);
378 debug_pstring("expand[3]", conf.expand[3]);
379 debug_pstring("expand[4]", conf.expand[4]);
380 debug_pstring("expand[5]", conf.expand[5]);
381 debug_pstring("expand[6]", conf.expand[6]);
382 debug_pstring("expand[7]", conf.expand[7]);
383 debug_pstring("expand[8]", conf.expand[8]);
384 debug_pstring("expand[9]", conf.expand[9]);
385 }
386 #endif
387
388 /*
389 **************************************************************************
390 * String collection routines
391 **************************************************************************
392 */
393 #define STRALLOCSIZE 128
394 static char *str;
395 static int nstr;
396 static int nastr;
397
398 static void reset_str(void)
399 {
400 nstr = 0;
401 }
402
403 static void add_str(int c)
404 {
405 if(nstr + 1 + 1 > nastr)
406 {
407 str = xrealloc(str, nastr+STRALLOCSIZE);
408 nastr += STRALLOCSIZE;
409 }
410 str[nstr++] = c;
411 }
412
413 static char *get_str(void)
414 {
415 if(!str)
416 return xstrdup("");
417
418 str[nstr] = '\0';
419 return xstrdup(str);
420 }
421
422 /*
423 **************************************************************************
424 * Input routines
425 **************************************************************************
426 */
427 static char *buf = NULL;
428 static int bufsize = 0;
429 static int bufalloc = 0;
430 static int bufpos = 0;
431 static int bufunput = -1;
432 static FILE *buffp;
433
434 static void set_input(FILE *fp, char *s)
435 {
436 assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
437 buffp = fp;
438 bufsize = bufpos = 0;
439 if(s)
440 {
441 if(!buf)
442 {
443 bufalloc = 8192;
444 buf = xmalloc(bufalloc * sizeof(*buf));
445 }
446 bufsize = strlen(s);
447 assert(bufsize < bufalloc);
448 strcpy(buf, s);
449 }
450 }
451
452 static int get_input(void)
453 {
454 if(bufunput != -1)
455 {
456 int c = bufunput;
457 bufunput = -1;
458 return c;
459 }
460
461 if(bufpos < bufsize)
462 {
463 assert(buf != NULL);
464 retry_input:
465 return (int)((unsigned char)buf[bufpos++]);
466 }
467
468 if(!buf)
469 {
470 bufalloc = 8192;
471 buf = xmalloc(bufalloc * sizeof(*buf));
472 bufsize = bufpos = 0;
473 }
474 if(buffp)
475 {
476 bufsize = fread(buf, 1, bufalloc, buffp);
477 bufpos = 0;
478 if(!bufsize)
479 return EOF;
480 goto retry_input;
481 }
482 return EOF;
483 }
484
485 static void unget_input(int c)
486 {
487 bufunput = c;
488 }
489
490 /*
491 **************************************************************************
492 * Lexical scanner
493 **************************************************************************
494 */
495 static int config_lex(void)
496 {
497 int ch;
498 while(1)
499 {
500 ch = get_input();
501 if(ch == '\n')
502 line_number++;
503
504 if(isspace(ch))
505 continue;
506
507 switch(ch)
508 {
509 case EOF:
510 case '=':
511 case ';':
512 return ch;
513
514 case '#': /* Comment */
515 while((ch = get_input()) != '\n' && ch != EOF)
516 ;
517 if(ch != EOF)
518 unget_input(ch);
519 break;
520
521 case '"':
522 reset_str();
523 while(1)
524 {
525 char c[4];
526 ch = get_input();
527 switch(ch)
528 {
529 case '\\': /* Start an escape sequence */
530 switch(ch = get_input())
531 {
532 default: /* This includes '\\', '"' and embedded newlines */
533 add_str(ch);
534 break;
535 case 'a': add_str('\a'); break;
536 case 'b': add_str('\b'); break;
537 case 'f': add_str('\f'); break;
538 case 'n': add_str('\n'); break;
539 case 'r': add_str('\r'); break;
540 case 't': add_str('\t'); break;
541 case 'v': add_str('\v'); break;
542 case 'x':
543 case 'X': /* Hex escape */
544 c[0] = get_input();
545 c[1] = get_input();
546 c[2] = '\0';
547 if(!isxdigit((int)(unsigned char)c[0]) || !isxdigit((int)(unsigned char)c[1]))
548 stack_msg(MSG_ERR, "config: %d: Invalid hex escape", line_number);
549 add_str((int)strtol(c, NULL, 16));
550 break;
551 case '0':
552 case '1':
553 case '2': /* Octal escape */
554 c[0] = ch;
555 c[1] = c[2] = c[3] = '\0';
556 if((ch = get_input()) >= '0' && ch <= '7')
557 c[1] = ch;
558 else
559 unget_input(ch);
560 if((ch = get_input()) >= '0' && ch <= '7')
561 c[2] = ch;
562 else
563 unget_input(ch);
564 add_str((int)strtol(c, NULL, 8));
565 break;
566 case EOF:
567 yyerror("Unexpected EOF in escape");
568 break;
569 }
570 break;
571 case '"':
572 yylval.str = get_str();
573 return TYPE_STRING;
574 case '\n':
575 yyerror("Newline in string");
576 break;
577 case EOF:
578 yyerror("Unexpected EOF in string");
579 break;
580 default:
581 add_str(ch);
582 break;
583 }
584 }
585 break;
586
587 default:
588 if(isalpha(ch) || ch == '_')
589 {
590 keyword_t skw;
591 keyword_t *kw;
592 /* Collect keyword */
593 reset_str();
594 add_str(ch);
595 while(1)
596 {
597 ch = get_input();
598 if(isalnum(ch) || ch == '_')
599 add_str(ch);
600 else
601 {
602 unget_input(ch);
603 break;
604 }
605 }
606 skw.keyword = get_str();
607 kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
608 if(!kw)
609 {
610 stack_msg(MSG_ERR, "config: %d: Unknown keyword '%s'", line_number, skw.keyword);
611 yylval.kw = NULL;
612 return TYPE_KEYWORD;
613 }
614 xfree(skw.keyword);
615 if(kw->type == TYPE_VALUE)
616 {
617 yylval.i = (int)kw->confref.val;
618 return TYPE_NUMBER;
619 }
620 yylval.kw = kw;
621 return TYPE_KEYWORD;
622 }
623 else if(isdigit(ch) || ch == '+' || ch == '-')
624 {
625 char *s;
626 char *eptr;
627 int type = TYPE_NUMBER;
628 /* Collect number */
629 reset_str();
630 add_str(ch);
631 while(1)
632 {
633 ch = get_input();
634 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
635 add_str(ch);
636 else
637 {
638 unget_input(ch);
639 break;
640 }
641 if(ch == '.')
642 type = TYPE_DOUBLE;
643 }
644 s = get_str();
645 if(type == TYPE_DOUBLE)
646 {
647 yylval.d = strtod(s, &eptr);
648 if(*eptr)
649 stack_msg(MSG_ERR, "config: %d: Invalid floating point number", line_number);
650 }
651 else
652 {
653 yylval.i = strtol(s, &eptr, 0);
654 if(*eptr)
655 stack_msg(MSG_ERR, "config: %d: Invalid number", line_number);
656 }
657 xfree(s);
658 return type;
659 }
660 else
661 yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
662 break;
663 }
664 }
665 }
666
667 static void set_color(color_t *c, char *s)
668 {
669 char *cptr;
670 if(*s != '#' || strlen(s) != 7)
671 {
672 colorerror:
673 stack_msg(MSG_ERR, "config: %d: Invalid color value '%s'", line_number, s);
674 return;
675 }
676 c->b = strtol(s+5, &cptr, 16);
677 if(*cptr)
678 goto colorerror;
679 s[5] = '\0';
680 c->g = strtol(s+3, &cptr, 16);
681 if(*cptr)
682 goto colorerror;
683 s[3] = '\0';
684 c->r = strtol(s+1, &cptr, 16);
685 if(*cptr)
686 goto colorerror;
687 }
688
689 static gdFontPtr get_font(int id)
690 {
691 switch(id)
692 {
693 case 0: return gdFontTiny;
694 case 1: return gdFontSmall;
695 default:
696 case 2: return gdFontMediumBold;
697 case 3: return gdFontLarge;
698 case 4: return gdFontGiant;
699 }
700 }
701
702 /*
703 **************************************************************************
704 * The config parser
705 * Grammar:
706 * file : <Empty>
707 * | lines
708 * ;
709 *
710 * lines : line
711 * | lines line
712 * ;
713 *
714 * line : <keyword> '=' <value> ';'
715 * | ';'
716 * ;
717 **************************************************************************
718 */
719 static void config_parse(void)
720 {
721 int state = 0;
722 int token;
723 int t;
724 keyword_t *kw = NULL;
725
726 while(1)
727 {
728 token = config_lex();
729 if(token == EOF)
730 {
731 if(state)
732 stack_msg(MSG_ERR, "config: %d: Unexpected EOF", line_number);
733 break;
734 }
735
736 switch(state)
737 {
738 case 0:
739 if(token == TYPE_KEYWORD)
740 {
741 kw = yylval.kw;
742 state = 1;
743 }
744 else if(token != ';')
745 stack_msg(MSG_ERR, "config: %d: Keyword expected", line_number);
746 break;
747 case 1:
748 if(token != '=')
749 {
750 stack_msg(MSG_ERR, "config: %d: '=' expected", line_number);
751 while(1)
752 {
753 token = config_lex();
754 if(token == ';')
755 {
756 state = 0;
757 break;
758 }
759 else if(token == EOF)
760 break;
761 }
762 }
763 else
764 state = 2;
765 break;
766 case 2:
767 if(!kw)
768 {
769 /* Error recovery of failed keyword */
770 state = 3;
771 break;
772 }
773 if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
774 t = TYPE_NUMBER;
775 else if(kw->type == TYPE_COLOR)
776 t = TYPE_STRING;
777 else
778 t = kw->type;
779
780 if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
781 {
782 /* Auto promote numbers to doubles if required */
783 yylval.d = (double)yylval.i;
784 token = TYPE_DOUBLE;
785 }
786
787 if(token != t)
788 {
789 char *e;
790 switch(kw->type)
791 {
792 case TYPE_STRING: e = "String"; yylval.str = xstrdup("error recovery"); break;
793 case TYPE_NUMBER: e = "Number"; yylval.i = 0; break;
794 case TYPE_COLOR: e = "Color"; yylval.str = xstrdup("#123456"); break;
795 case TYPE_FONT: e = "Font"; yylval.i = 0; break;
796 case TYPE_BOOLEAN: e = "Boolean"; yylval.i = 0; break;
797 case TYPE_DOUBLE: e = "Double"; yylval.d = 0.0; break;
798 default: e = "Internal error: Unknown type"; yylval.i = 0; break;
799 }
800 stack_msg(MSG_ERR, "config: %d: %s expected", line_number, e);
801 }
802 #ifdef DEBUG
803 printf("processing: '%s'\n", kw->keyword);
804 #endif
805 switch(kw->type)
806 {
807 case TYPE_STRING:
808 *kw->confref.s = yylval.str;
809 break;
810 case TYPE_NUMBER:
811 *kw->confref.i = yylval.i;
812 break;
813 case TYPE_BOOLEAN:
814 if(yylval.i == -1)
815 *kw->confref.i = !*kw->confref.i;
816 else
817 *kw->confref.i = yylval.i != 0;
818 break;
819 case TYPE_COLOR:
820 set_color(kw->confref.c, yylval.str);
821 break;
822 case TYPE_FONT:
823 kw->confref.f->gdfont = get_font(yylval.i);
824 break;
825 case TYPE_DOUBLE:
826 *kw->confref.d = yylval.d;
827 break;
828 default:
829 yyerror("Internal error: Unknown type passed %d", kw->type);
830 break;
831 }
832 state = 3;
833 break;
834 case 3:
835 if(token != ';')
836 stack_msg(MSG_ERR, "config: %d: ';' expected", line_number);
837 state = 0;
838 break;
839 default:
840 yyerror("Internal error: invalid state %d", state);
841 break;
842 }
843 }
844 }
845
846 /*
847 **************************************************************************
848 * Configuration
849 **************************************************************************
850 */
851 void stack_option(const char *opt)
852 {
853 stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
854 stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
855 strcpy(stacked_opts[nstacked_opts], opt);
856 strcat(stacked_opts[nstacked_opts], ";");
857 nstacked_opts++;
858 #ifdef DEBUG
859 printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
860 #endif
861 }
862
863 void read_config(const char *path)
864 {
865 FILE *fp;
866
867 /* Make sure we have them sorted for bsearch */
868 qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
869
870 if(path)
871 {
872 if((fp = fopen(path, "r")) != NULL)
873 input_file = path;
874 }
875 else
876 {
877 if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
878 {
879 if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
880 input_file = ETCDIR "/" CONFFILENAME;
881 }
882 else
883 input_file = "./" CONFFILENAME;
884 }
885
886 if(fp)
887 {
888 line_number = 1;
889 set_input(fp, NULL);
890 config_parse();
891 fclose(fp);
892 input_file = NULL;
893 }
894
895 if(nstacked_opts)
896 {
897 int i;
898 for(i = 0; i < nstacked_opts; i++)
899 {
900 line_number = 0;
901 set_input(NULL, stacked_opts[i]);
902 input_file = stacked_opts[i];
903 #ifdef DEBUG
904 printf("parsing stacked option: '%s'\n", stacked_opts[i]);
905 #endif
906 config_parse();
907 }
908 input_file = NULL;
909 }
910 #ifdef DEBUG
911 dump_config();
912 #endif
913 }

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