/[CvsGraph]/cvsgraph/readconf.c
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Revision 1.12 - (show annotations)
Sun Feb 22 13:00:39 2004 UTC (13 years, 8 months ago) by bertho
Branch: MAIN
Changes since 1.11: +3 -0 lines
File MIME type: text/plain
- Add the arrow patch from Haroon Rafique <haroon.rafique {at} utoronto.ca>
- Adapt the arrow patch to be more configurable
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 int val; /* FIXME: Oops, sizeof(int) must be sizeof(void *) */
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 { "upside_down", TYPE_BOOLEAN, { &conf.upside_down } },
102 { "left_right", TYPE_BOOLEAN, { &conf.left_right } },
103 { "auto_stretch", TYPE_BOOLEAN, { &conf.auto_stretch } },
104 { "color_bg", TYPE_COLOR, { &conf.color_bg } },
105 { "transparent_bg", TYPE_BOOLEAN, { &conf.transparent_bg } },
106 { "cvsmodule", TYPE_STRING, { &conf.cvsmodule } },
107 { "cvsroot", TYPE_STRING, { &conf.cvsroot } },
108 { "date_format", TYPE_STRING, { &conf.date_format } },
109 { "box_shadow", TYPE_BOOLEAN, { &conf.box_shadow } },
110 { "strip_untagged", TYPE_BOOLEAN, { &conf.strip_untagged } },
111 { "strip_first_rev", TYPE_BOOLEAN, { &conf.strip_first_rev } },
112 { "anti_alias", TYPE_BOOLEAN, { &conf.anti_alias } },
113 { "use_ttf", TYPE_BOOLEAN, { &conf.use_ttf } },
114 { "parse_logs", TYPE_BOOLEAN, { &conf.parse_logs } },
115 { "html_level", TYPE_NUMBER, { &conf.html_level } },
116 { "thick_lines", TYPE_NUMBER, { &conf.thick_lines } },
117 { "rev_color", TYPE_COLOR, { &conf.rev_color } },
118 { "rev_bgcolor", TYPE_COLOR, { &conf.rev_bgcolor } },
119 { "rev_font", TYPE_FONT, { &conf.rev_font.gdfont } },
120 { "rev_ttfont", TYPE_STRING, { &conf.rev_font.ttfont } },
121 { "rev_ttsize", TYPE_DOUBLE, { &conf.rev_font.ttsize } },
122 { "rev_separator", TYPE_NUMBER, { &conf.rev_separator } },
123 { "rev_minline", TYPE_NUMBER, { &conf.rev_minline } },
124 { "rev_maxline", TYPE_NUMBER, { &conf.rev_maxline } },
125 { "rev_lspace", TYPE_NUMBER, { &conf.rev_lspace } },
126 { "rev_rspace", TYPE_NUMBER, { &conf.rev_rspace } },
127 { "rev_tspace", TYPE_NUMBER, { &conf.rev_tspace } },
128 { "rev_bspace", TYPE_NUMBER, { &conf.rev_bspace } },
129 { "rev_text", TYPE_STRING, { &conf.rev_text } },
130 { "rev_text_color", TYPE_COLOR, { &conf.rev_text_color } },
131 { "rev_text_font", TYPE_FONT, { &conf.rev_text_font.gdfont } },
132 { "rev_text_ttfont", TYPE_STRING, { &conf.rev_text_font.ttfont } },
133 { "rev_text_ttsize", TYPE_DOUBLE, { &conf.rev_text_font.ttsize } },
134 { "rev_maxtags", TYPE_NUMBER, { &conf.rev_maxtags } },
135 { "merge_color", TYPE_COLOR, { &conf.merge_color } },
136 { "merge_from", TYPE_STRING, { &conf.merge_from } },
137 { "merge_to", TYPE_STRING, { &conf.merge_to } },
138 { "merge_front", TYPE_BOOLEAN, { &conf.merge_front } },
139 { "merge_nocase", TYPE_BOOLEAN, { &conf.merge_nocase } },
140 { "merge_arrows", TYPE_BOOLEAN, { &conf.merge_arrows } },
141 { "arrow_width", TYPE_NUMBER, { &conf.arrow_width } },
142 { "arrow_length", TYPE_NUMBER, { &conf.arrow_length } },
143 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
144 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
145 { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
146 { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
147 { "title", TYPE_STRING, { &conf.title } },
148 { "title_x", TYPE_NUMBER, { &conf.title_x } },
149 { "title_y", TYPE_NUMBER, { &conf.title_y } },
150 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
151 { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
152 { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
153 { "title_align", TYPE_NUMBER, { &conf.title_align } },
154 { "title_color", TYPE_COLOR, { &conf.title_color } },
155 { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
156 { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
157 { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
158 { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
159 { "image_type", TYPE_NUMBER, { &conf.image_type } },
160 { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
161 { "map_name", TYPE_STRING, { &conf.map_name } },
162 { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
163 { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
164 { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
165 { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
166 { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
167 { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
168 { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
169 { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
170 { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
171 { "true", TYPE_VALUE, { (void *)1 } },
172 { "false", TYPE_VALUE, { (void *)0 } },
173 { "not", TYPE_VALUE, { (void *)-1 } },
174 { "left", TYPE_VALUE, { (void *)0 } },
175 { "center", TYPE_VALUE, { (void *)1 } },
176 { "right", TYPE_VALUE, { (void *)2 } },
177 { "tiny", TYPE_VALUE, { (void *)0 } },
178 { "small", TYPE_VALUE, { (void *)1 } },
179 { "medium", TYPE_VALUE, { (void *)2 } },
180 { "large", TYPE_VALUE, { (void *)3 } },
181 { "giant", TYPE_VALUE, { (void *)4 } },
182 { "HTML3", TYPE_VALUE, { (void *)1 } },
183 { "HTML4", TYPE_VALUE, { (void *)2 } },
184 { "XHTML", TYPE_VALUE, { (void *)3 } },
185 };
186
187 #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
188
189 static int cmp_kw(const void *k1, const void *k2)
190 {
191 return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
192 }
193
194 /*
195 **************************************************************************
196 * Debug routines
197 **************************************************************************
198 */
199 #ifdef DEBUG
200 #define DEBUGSTREAM stdout
201 static void debug_pname(const char *n)
202 {
203 fprintf(DEBUGSTREAM, "%-16s: ", n);
204 }
205
206 static void debug_pstring(const char *n, const char *a)
207 {
208 debug_pname(n);
209 if(!a)
210 fprintf(DEBUGSTREAM, "<not-set>\n");
211 else
212 {
213 fputc('\'', DEBUGSTREAM);
214 for(; *a; a++)
215 {
216 if(isprint(*a))
217 fputc(*a, DEBUGSTREAM);
218 else
219 {
220 fputc('\\', DEBUGSTREAM);
221 switch(*a)
222 {
223 case '\a': fputc('a', DEBUGSTREAM); break;
224 case '\b': fputc('b', DEBUGSTREAM); break;
225 case '\f': fputc('f', DEBUGSTREAM); break;
226 case '\n': fputc('n', DEBUGSTREAM); break;
227 case '\r': fputc('r', DEBUGSTREAM); break;
228 case '\t': fputc('t', DEBUGSTREAM); break;
229 case '\v': fputc('v', DEBUGSTREAM); break;
230 default:
231 fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
232 }
233 }
234 }
235 fprintf(DEBUGSTREAM, "'\n");
236 }
237 }
238
239 static void debug_pbool(const char *n, int b)
240 {
241 debug_pname(n);
242 fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
243 }
244
245 static void debug_pint(const char *n, int i)
246 {
247 debug_pname(n);
248 fprintf(DEBUGSTREAM, "%i\n", i);
249 }
250
251 static void debug_pdouble(const char *n, double d)
252 {
253 debug_pname(n);
254 fprintf(DEBUGSTREAM, "%g\n", d);
255 }
256
257 static void debug_pfont(const char *n, gdFontPtr f)
258 {
259 const char *s = "<Unknown font>";
260 debug_pname(n);
261 if(f == gdFontTiny)
262 s = "gdFontTiny";
263 else if(f == gdFontSmall)
264 s = "gdFontSmall";
265 else if(f == gdFontMediumBold)
266 s = "gdFontMediumBold";
267 else if(f == gdFontLarge)
268 s = "gdFontLarge";
269 else if(f == gdFontGiant)
270 s = "gdFontGiant";
271 fprintf(DEBUGSTREAM, "%s\n", s);
272 }
273
274 static void debug_pcolor(const char *n, color_t *c)
275 {
276 debug_pname(n);
277 fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
278 }
279
280 void dump_config(void)
281 {
282 debug_pstring("cvsroot", conf.cvsroot);
283 debug_pstring("cvsmodule", conf.cvsmodule);
284 debug_pstring("date_format", conf.date_format);
285
286 debug_pcolor("color_bg", &conf.color_bg);
287 debug_pbool("box_shadow", conf.box_shadow);
288 debug_pbool("upside_down", conf.upside_down);
289 debug_pbool("left_right", conf.left_right);
290 debug_pbool("strip_untagged", conf.strip_untagged);
291 debug_pbool("strip_first_rev", conf.strip_first_rev);
292 debug_pbool("auto_stretch", conf.auto_stretch);
293 debug_pbool("anti_alias", conf.anti_alias);
294 debug_pbool("use_ttf", conf.use_ttf);
295 debug_pint("thick_lines", conf.thick_lines);
296
297 debug_pfont("tag_font", conf.tag_font.gdfont);
298 debug_pstring("tag_ttfont", conf.tag_font.ttfont);
299 debug_psouble("tag_ttsize", conf.tag_font.ttsize);
300 debug_pcolor("tag_color", &conf.tag_color);
301
302 debug_pfont("rev_font", conf.rev_font.gdfont);
303 debug_pstring("rev_ttfont", conf.rev_font.ttfont);
304 debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
305 debug_pcolor("rev_color", &conf.rev_color);
306 debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
307 debug_pint("rev_separator", conf.rev_separator);
308 debug_pint("rev_minline", conf.rev_minline);
309 debug_pint("rev_maxline", conf.rev_maxline);
310 debug_pint("rev_lspace", conf.rev_lspace);
311 debug_pint("rev_rspace", conf.rev_rspace);
312 debug_pint("rev_tspace", conf.rev_tspace);
313 debug_pint("rev_bspace", conf.rev_bspace);
314 debug_pstring("rev_text", conf.rev_text);
315 debug_pcolor("rev_text_color", &conf.rev_text_color);
316 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
317 debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
318 debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
319
320 debug_pfont("branch_font", conf.branch_font.gdfont);
321 debug_pstring("branch_ttfont", conf.branch_font.ttfont);
322 debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
323 debug_pcolor("branch_color", &conf.branch_color);
324 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
325 debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
326 debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
327 debug_pcolor("branch_tag_color", &conf.branch_tag_color);
328 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
329 debug_pint("branch_lspace", conf.branch_lspace);
330 debug_pint("branch_rspace", conf.branch_rspace);
331 debug_pint("branch_tspace", conf.branch_tspace);
332 debug_pint("branch_bspace", conf.branch_bspace);
333 debug_pint("branch_connect", conf.branch_connect);
334 debug_pint("branch_margin", conf.branch_margin);
335 debug_pint("branch_dupbox", conf.branch_dupbox);
336
337 debug_pstring("title", conf.title);
338 debug_pint("title_x", conf.title_x);
339 debug_pint("title_y", conf.title_y);
340 debug_pfont("title_font", conf.title_font.gdfont);
341 debug_pstring("title_ttfont", conf.title_font.ttfont);
342 debug_pdouble("title_ttsize", conf.title_font.ttsize);
343 debug_pint("title_align", conf.title_align);
344 debug_pcolor("title_color", &conf.title_color);
345
346 debug_pint("margin_top", conf.margin_top);
347 debug_pint("margin_bottom", conf.margin_bottom);
348 debug_pint("margin_left", conf.margin_left);
349 debug_pint("margin_right", conf.margin_right);
350
351 debug_pint("image_type", conf.image_type);
352 debug_pint("image_quality", conf.image_quality);
353
354 debug_pstring("map_name", conf.map_name);
355 debug_pstring("map_branch_href", conf.map_branch_href);
356 debug_pstring("map_branch_alt", conf.map_branch_alt);
357 debug_pstring("map_rev_href", conf.map_rev_href);
358 debug_pstring("map_rev_alt", conf.map_rev_alt);
359 debug_pstring("map_diff_href", conf.map_diff_href);
360 debug_pstring("map_diff_alt", conf.map_diff_alt);
361
362 debug_pstring("expand[0]", conf.expand[0]);
363 debug_pstring("expand[1]", conf.expand[1]);
364 debug_pstring("expand[2]", conf.expand[2]);
365 debug_pstring("expand[3]", conf.expand[3]);
366 debug_pstring("expand[4]", conf.expand[4]);
367 debug_pstring("expand[5]", conf.expand[5]);
368 debug_pstring("expand[6]", conf.expand[6]);
369 debug_pstring("expand[7]", conf.expand[7]);
370 debug_pstring("expand[8]", conf.expand[8]);
371 debug_pstring("expand[9]", conf.expand[9]);
372 }
373 #endif
374
375 /*
376 **************************************************************************
377 * String collection routines
378 **************************************************************************
379 */
380 #define STRALLOCSIZE 128
381 static char *str;
382 static int nstr;
383 static int nastr;
384
385 static void reset_str(void)
386 {
387 nstr = 0;
388 }
389
390 static void add_str(int c)
391 {
392 if(nstr + 1 + 1 > nastr)
393 {
394 str = xrealloc(str, nastr+STRALLOCSIZE);
395 nastr += STRALLOCSIZE;
396 }
397 str[nstr++] = c;
398 }
399
400 static char *get_str(void)
401 {
402 if(!str)
403 return xstrdup("");
404
405 str[nstr] = '\0';
406 return xstrdup(str);
407 }
408
409 /*
410 **************************************************************************
411 * Input routines
412 **************************************************************************
413 */
414 static char *buf = NULL;
415 static int bufsize = 0;
416 static int bufalloc = 0;
417 static int bufpos = 0;
418 static int bufunput = -1;
419 static FILE *buffp;
420
421 static void set_input(FILE *fp, char *s)
422 {
423 assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
424 buffp = fp;
425 bufsize = bufpos = 0;
426 if(s)
427 {
428 if(!buf)
429 {
430 bufalloc = 8192;
431 buf = xmalloc(bufalloc * sizeof(*buf));
432 }
433 bufsize = strlen(s);
434 assert(bufsize < bufalloc);
435 strcpy(buf, s);
436 }
437 }
438
439 static int get_input(void)
440 {
441 if(bufunput != -1)
442 {
443 int c = bufunput;
444 bufunput = -1;
445 return c;
446 }
447
448 if(bufpos < bufsize)
449 {
450 assert(buf != NULL);
451 retry_input:
452 return (int)((unsigned char)buf[bufpos++]);
453 }
454
455 if(!buf)
456 {
457 bufalloc = 8192;
458 buf = xmalloc(bufalloc * sizeof(*buf));
459 bufsize = bufpos = 0;
460 }
461 if(buffp)
462 {
463 bufsize = fread(buf, 1, bufalloc, buffp);
464 bufpos = 0;
465 if(!bufsize)
466 return EOF;
467 goto retry_input;
468 }
469 return EOF;
470 }
471
472 static void unget_input(int c)
473 {
474 bufunput = c;
475 }
476
477 /*
478 **************************************************************************
479 * Lexical scanner
480 **************************************************************************
481 */
482 static int config_lex(void)
483 {
484 int ch;
485 while(1)
486 {
487 ch = get_input();
488 if(ch == '\n')
489 line_number++;
490
491 if(isspace(ch))
492 continue;
493
494 switch(ch)
495 {
496 case EOF:
497 case '=':
498 case ';':
499 return ch;
500
501 case '#': /* Comment */
502 while((ch = get_input()) != '\n' && ch != EOF)
503 ;
504 if(ch != EOF)
505 unget_input(ch);
506 break;
507
508 case '"':
509 reset_str();
510 while(1)
511 {
512 char c[4];
513 ch = get_input();
514 switch(ch)
515 {
516 case '\\': /* Start an escape sequence */
517 switch(ch = get_input())
518 {
519 default: /* This includes '\\', '"' and embedded newlines */
520 add_str(ch);
521 break;
522 case 'a': add_str('\a'); break;
523 case 'b': add_str('\b'); break;
524 case 'f': add_str('\f'); break;
525 case 'n': add_str('\n'); break;
526 case 'r': add_str('\r'); break;
527 case 't': add_str('\t'); break;
528 case 'v': add_str('\v'); break;
529 case 'x':
530 case 'X': /* Hex escape */
531 c[0] = get_input();
532 c[1] = get_input();
533 c[2] = '\0';
534 if(!isxdigit((int)(unsigned char)c[0]) || !isxdigit((int)(unsigned char)c[1]))
535 yyerror("Invalid hex escape");
536 add_str((int)strtol(c, NULL, 16));
537 break;
538 case '0':
539 case '1':
540 case '2': /* Octal escape */
541 c[0] = ch;
542 c[1] = c[2] = c[3] = '\0';
543 if((ch = get_input()) >= '0' && ch <= '7')
544 c[1] = ch;
545 else
546 unget_input(ch);
547 if((ch = get_input()) >= '0' && ch <= '7')
548 c[2] = ch;
549 else
550 unget_input(ch);
551 add_str((int)strtol(c, NULL, 8));
552 break;
553 case EOF:
554 yyerror("Unexpected EOF in escape");
555 break;
556 }
557 break;
558 case '"':
559 yylval.str = get_str();
560 return TYPE_STRING;
561 case '\n':
562 yyerror("Newline in string");
563 break;
564 case EOF:
565 yyerror("Unexpected EOF in string");
566 break;
567 default:
568 add_str(ch);
569 break;
570 }
571 }
572 break;
573
574 default:
575 if(isalpha(ch) || ch == '_')
576 {
577 keyword_t skw;
578 keyword_t *kw;
579 /* Collect keyword */
580 reset_str();
581 add_str(ch);
582 while(1)
583 {
584 ch = get_input();
585 if(isalnum(ch) || ch == '_')
586 add_str(ch);
587 else
588 {
589 unget_input(ch);
590 break;
591 }
592 }
593 skw.keyword = get_str();
594 kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
595 if(!kw)
596 yyerror("Unknown keyword '%s'", skw.keyword);
597 xfree(skw.keyword);
598 if(kw->type == TYPE_VALUE)
599 {
600 yylval.i = kw->confref.val;
601 return TYPE_NUMBER;
602 }
603 yylval.kw = kw;
604 return TYPE_KEYWORD;
605 }
606 else if(isdigit(ch) || ch == '+' || ch == '-')
607 {
608 char *s;
609 char *eptr;
610 int type = TYPE_NUMBER;
611 /* Collect number */
612 reset_str();
613 add_str(ch);
614 while(1)
615 {
616 ch = get_input();
617 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
618 add_str(ch);
619 else
620 {
621 unget_input(ch);
622 break;
623 }
624 if(ch == '.')
625 type = TYPE_DOUBLE;
626 }
627 s = get_str();
628 if(type == TYPE_DOUBLE)
629 {
630 yylval.d = strtod(s, &eptr);
631 if(*eptr)
632 yyerror("Invalid floating point number");
633 }
634 else
635 {
636 yylval.i = strtol(s, &eptr, 0);
637 if(*eptr)
638 yyerror("Invalid number");
639 }
640 xfree(s);
641 return type;
642 }
643 else
644 yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
645 break;
646 }
647 }
648 }
649
650 static void set_color(color_t *c, char *s)
651 {
652 char *cptr;
653 if(*s != '#' || strlen(s) != 7)
654 {
655 colorerror:
656 yyerror("Invalid color value");
657 }
658 c->b = strtol(s+5, &cptr, 16);
659 if(*cptr)
660 goto colorerror;
661 s[5] = '\0';
662 c->g = strtol(s+3, &cptr, 16);
663 if(*cptr)
664 goto colorerror;
665 s[3] = '\0';
666 c->r = strtol(s+1, &cptr, 16);
667 if(*cptr)
668 goto colorerror;
669 }
670
671 static gdFontPtr get_font(int id)
672 {
673 switch(id)
674 {
675 case 0: return gdFontTiny;
676 case 1: return gdFontSmall;
677 default:
678 case 2: return gdFontMediumBold;
679 case 3: return gdFontLarge;
680 case 4: return gdFontGiant;
681 }
682 }
683
684 /*
685 **************************************************************************
686 * The config parser
687 * Grammar:
688 * file : <Empty>
689 * | lines
690 * ;
691 *
692 * lines : line
693 * | lines line
694 * ;
695 *
696 * line : <keyword> '=' <value> ';'
697 * | ';'
698 * ;
699 **************************************************************************
700 */
701 static void config_parse(void)
702 {
703 int state = 0;
704 int token;
705 int t;
706 keyword_t *kw = NULL;
707
708 while(1)
709 {
710 token = config_lex();
711 if(token == EOF)
712 {
713 if(state)
714 yyerror("Unexpected EOF");
715 break;
716 }
717
718 switch(state)
719 {
720 case 0:
721 if(token == TYPE_KEYWORD)
722 {
723 kw = yylval.kw;
724 state = 1;
725 }
726 else if(token != ';')
727 yyerror("Keyword expected");
728 break;
729 case 1:
730 if(token != '=')
731 yyerror("'=' expected");
732 state = 2;
733 break;
734 case 2:
735 if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
736 t = TYPE_NUMBER;
737 else if(kw->type == TYPE_COLOR)
738 t = TYPE_STRING;
739 else
740 t = kw->type;
741
742 if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
743 {
744 /* Auto promote numbers to doubles if required */
745 yylval.d = (double)yylval.i;
746 token = TYPE_DOUBLE;
747 }
748
749 if(token != t)
750 {
751 char *e;
752 switch(kw->type)
753 {
754 case TYPE_STRING: e = "String"; break;
755 case TYPE_NUMBER: e = "Number"; break;
756 case TYPE_COLOR: e = "Color"; break;
757 case TYPE_FONT: e = "Font"; break;
758 case TYPE_BOOLEAN: e = "Boolean"; break;
759 case TYPE_DOUBLE: e = "Double"; break;
760 default: e = "Internal error: Unknown type"; break;
761 }
762 yyerror("%s expected", e);
763 }
764 #ifdef DEBUG
765 printf("processing: '%s'\n", kw->keyword);
766 #endif
767 switch(kw->type)
768 {
769 case TYPE_STRING:
770 *kw->confref.s = yylval.str;
771 break;
772 case TYPE_NUMBER:
773 *kw->confref.i = yylval.i;
774 break;
775 case TYPE_BOOLEAN:
776 if(yylval.i == -1)
777 *kw->confref.i = !*kw->confref.i;
778 else
779 *kw->confref.i = yylval.i != 0;
780 break;
781 case TYPE_COLOR:
782 set_color(kw->confref.c, yylval.str);
783 break;
784 case TYPE_FONT:
785 kw->confref.f->gdfont = get_font(yylval.i);
786 break;
787 case TYPE_DOUBLE:
788 *kw->confref.d = yylval.d;
789 break;
790 default:
791 yyerror("Internal error: Unknown type passed %d", kw->type);
792 break;
793 }
794 state = 3;
795 break;
796 case 3:
797 if(token != ';')
798 yyerror("';' expected");
799 state = 0;
800 break;
801 default:
802 yyerror("Internal error: invalid state %d", state);
803 break;
804 }
805 }
806 }
807
808 /*
809 **************************************************************************
810 * Configuration
811 **************************************************************************
812 */
813 void stack_option(const char *opt)
814 {
815 stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
816 stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
817 strcpy(stacked_opts[nstacked_opts], opt);
818 strcat(stacked_opts[nstacked_opts], ";");
819 nstacked_opts++;
820 #ifdef DEBUG
821 printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
822 #endif
823 }
824
825 void read_config(const char *path)
826 {
827 FILE *fp;
828
829 /* Make sure we have them sorted for bsearch */
830 qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
831
832 if(path)
833 {
834 if((fp = fopen(path, "r")) != NULL)
835 input_file = path;
836 }
837 else
838 {
839 if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
840 {
841 if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
842 input_file = ETCDIR "/" CONFFILENAME;
843 }
844 else
845 input_file = "./" CONFFILENAME;
846 }
847
848 if(fp)
849 {
850 line_number = 1;
851 set_input(fp, NULL);
852 config_parse();
853 fclose(fp);
854 input_file = NULL;
855 }
856
857 if(nstacked_opts)
858 {
859 int i;
860 for(i = 0; i < nstacked_opts; i++)
861 {
862 line_number = 0;
863 set_input(NULL, stacked_opts[i]);
864 input_file = stacked_opts[i];
865 #ifdef DEBUG
866 printf("parsing stacked option: '%s'\n", stacked_opts[i]);
867 #endif
868 config_parse();
869 }
870 input_file = NULL;
871 }
872 #ifdef DEBUG
873 dump_config();
874 #endif
875 }

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