/[CvsGraph]/cvsgraph/readconf.c
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Revision 1.11 - (show annotations)
Fri Mar 14 14:24:50 2003 UTC (14 years, 7 months ago) by bertho
Branch: MAIN
CVS Tags: REL_1_4_0
Changes since 1.10: +1 -0 lines
File MIME type: text/plain
- Implement folding for all branches on the same branchpoint if empty. New
  option branch_foldall controls this behavior. See cvsgraph.conf(5) for
  details.
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 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
141 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
142 { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
143 { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
144 { "title", TYPE_STRING, { &conf.title } },
145 { "title_x", TYPE_NUMBER, { &conf.title_x } },
146 { "title_y", TYPE_NUMBER, { &conf.title_y } },
147 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
148 { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
149 { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
150 { "title_align", TYPE_NUMBER, { &conf.title_align } },
151 { "title_color", TYPE_COLOR, { &conf.title_color } },
152 { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
153 { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
154 { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
155 { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
156 { "image_type", TYPE_NUMBER, { &conf.image_type } },
157 { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
158 { "map_name", TYPE_STRING, { &conf.map_name } },
159 { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
160 { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
161 { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
162 { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
163 { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
164 { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
165 { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
166 { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
167 { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
168 { "true", TYPE_VALUE, { (void *)1 } },
169 { "false", TYPE_VALUE, { (void *)0 } },
170 { "not", TYPE_VALUE, { (void *)-1 } },
171 { "left", TYPE_VALUE, { (void *)0 } },
172 { "center", TYPE_VALUE, { (void *)1 } },
173 { "right", TYPE_VALUE, { (void *)2 } },
174 { "tiny", TYPE_VALUE, { (void *)0 } },
175 { "small", TYPE_VALUE, { (void *)1 } },
176 { "medium", TYPE_VALUE, { (void *)2 } },
177 { "large", TYPE_VALUE, { (void *)3 } },
178 { "giant", TYPE_VALUE, { (void *)4 } },
179 { "HTML3", TYPE_VALUE, { (void *)1 } },
180 { "HTML4", TYPE_VALUE, { (void *)2 } },
181 { "XHTML", TYPE_VALUE, { (void *)3 } },
182 };
183
184 #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
185
186 static int cmp_kw(const void *k1, const void *k2)
187 {
188 return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
189 }
190
191 /*
192 **************************************************************************
193 * Debug routines
194 **************************************************************************
195 */
196 #ifdef DEBUG
197 #define DEBUGSTREAM stdout
198 static void debug_pname(const char *n)
199 {
200 fprintf(DEBUGSTREAM, "%-16s: ", n);
201 }
202
203 static void debug_pstring(const char *n, const char *a)
204 {
205 debug_pname(n);
206 if(!a)
207 fprintf(DEBUGSTREAM, "<not-set>\n");
208 else
209 {
210 fputc('\'', DEBUGSTREAM);
211 for(; *a; a++)
212 {
213 if(isprint(*a))
214 fputc(*a, DEBUGSTREAM);
215 else
216 {
217 fputc('\\', DEBUGSTREAM);
218 switch(*a)
219 {
220 case '\a': fputc('a', DEBUGSTREAM); break;
221 case '\b': fputc('b', DEBUGSTREAM); break;
222 case '\f': fputc('f', DEBUGSTREAM); break;
223 case '\n': fputc('n', DEBUGSTREAM); break;
224 case '\r': fputc('r', DEBUGSTREAM); break;
225 case '\t': fputc('t', DEBUGSTREAM); break;
226 case '\v': fputc('v', DEBUGSTREAM); break;
227 default:
228 fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
229 }
230 }
231 }
232 fprintf(DEBUGSTREAM, "'\n");
233 }
234 }
235
236 static void debug_pbool(const char *n, int b)
237 {
238 debug_pname(n);
239 fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
240 }
241
242 static void debug_pint(const char *n, int i)
243 {
244 debug_pname(n);
245 fprintf(DEBUGSTREAM, "%i\n", i);
246 }
247
248 static void debug_pdouble(const char *n, double d)
249 {
250 debug_pname(n);
251 fprintf(DEBUGSTREAM, "%g\n", d);
252 }
253
254 static void debug_pfont(const char *n, gdFontPtr f)
255 {
256 const char *s = "<Unknown font>";
257 debug_pname(n);
258 if(f == gdFontTiny)
259 s = "gdFontTiny";
260 else if(f == gdFontSmall)
261 s = "gdFontSmall";
262 else if(f == gdFontMediumBold)
263 s = "gdFontMediumBold";
264 else if(f == gdFontLarge)
265 s = "gdFontLarge";
266 else if(f == gdFontGiant)
267 s = "gdFontGiant";
268 fprintf(DEBUGSTREAM, "%s\n", s);
269 }
270
271 static void debug_pcolor(const char *n, color_t *c)
272 {
273 debug_pname(n);
274 fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
275 }
276
277 void dump_config(void)
278 {
279 debug_pstring("cvsroot", conf.cvsroot);
280 debug_pstring("cvsmodule", conf.cvsmodule);
281 debug_pstring("date_format", conf.date_format);
282
283 debug_pcolor("color_bg", &conf.color_bg);
284 debug_pbool("box_shadow", conf.box_shadow);
285 debug_pbool("upside_down", conf.upside_down);
286 debug_pbool("left_right", conf.left_right);
287 debug_pbool("strip_untagged", conf.strip_untagged);
288 debug_pbool("strip_first_rev", conf.strip_first_rev);
289 debug_pbool("auto_stretch", conf.auto_stretch);
290 debug_pbool("anti_alias", conf.anti_alias);
291 debug_pbool("use_ttf", conf.use_ttf);
292 debug_pint("thick_lines", conf.thick_lines);
293
294 debug_pfont("tag_font", conf.tag_font.gdfont);
295 debug_pstring("tag_ttfont", conf.tag_font.ttfont);
296 debug_psouble("tag_ttsize", conf.tag_font.ttsize);
297 debug_pcolor("tag_color", &conf.tag_color);
298
299 debug_pfont("rev_font", conf.rev_font.gdfont);
300 debug_pstring("rev_ttfont", conf.rev_font.ttfont);
301 debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
302 debug_pcolor("rev_color", &conf.rev_color);
303 debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
304 debug_pint("rev_separator", conf.rev_separator);
305 debug_pint("rev_minline", conf.rev_minline);
306 debug_pint("rev_maxline", conf.rev_maxline);
307 debug_pint("rev_lspace", conf.rev_lspace);
308 debug_pint("rev_rspace", conf.rev_rspace);
309 debug_pint("rev_tspace", conf.rev_tspace);
310 debug_pint("rev_bspace", conf.rev_bspace);
311 debug_pstring("rev_text", conf.rev_text);
312 debug_pcolor("rev_text_color", &conf.rev_text_color);
313 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
314 debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
315 debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
316
317 debug_pfont("branch_font", conf.branch_font.gdfont);
318 debug_pstring("branch_ttfont", conf.branch_font.ttfont);
319 debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
320 debug_pcolor("branch_color", &conf.branch_color);
321 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
322 debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
323 debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
324 debug_pcolor("branch_tag_color", &conf.branch_tag_color);
325 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
326 debug_pint("branch_lspace", conf.branch_lspace);
327 debug_pint("branch_rspace", conf.branch_rspace);
328 debug_pint("branch_tspace", conf.branch_tspace);
329 debug_pint("branch_bspace", conf.branch_bspace);
330 debug_pint("branch_connect", conf.branch_connect);
331 debug_pint("branch_margin", conf.branch_margin);
332 debug_pint("branch_dupbox", conf.branch_dupbox);
333
334 debug_pstring("title", conf.title);
335 debug_pint("title_x", conf.title_x);
336 debug_pint("title_y", conf.title_y);
337 debug_pfont("title_font", conf.title_font.gdfont);
338 debug_pstring("title_ttfont", conf.title_font.ttfont);
339 debug_pdouble("title_ttsize", conf.title_font.ttsize);
340 debug_pint("title_align", conf.title_align);
341 debug_pcolor("title_color", &conf.title_color);
342
343 debug_pint("margin_top", conf.margin_top);
344 debug_pint("margin_bottom", conf.margin_bottom);
345 debug_pint("margin_left", conf.margin_left);
346 debug_pint("margin_right", conf.margin_right);
347
348 debug_pint("image_type", conf.image_type);
349 debug_pint("image_quality", conf.image_quality);
350
351 debug_pstring("map_name", conf.map_name);
352 debug_pstring("map_branch_href", conf.map_branch_href);
353 debug_pstring("map_branch_alt", conf.map_branch_alt);
354 debug_pstring("map_rev_href", conf.map_rev_href);
355 debug_pstring("map_rev_alt", conf.map_rev_alt);
356 debug_pstring("map_diff_href", conf.map_diff_href);
357 debug_pstring("map_diff_alt", conf.map_diff_alt);
358
359 debug_pstring("expand[0]", conf.expand[0]);
360 debug_pstring("expand[1]", conf.expand[1]);
361 debug_pstring("expand[2]", conf.expand[2]);
362 debug_pstring("expand[3]", conf.expand[3]);
363 debug_pstring("expand[4]", conf.expand[4]);
364 debug_pstring("expand[5]", conf.expand[5]);
365 debug_pstring("expand[6]", conf.expand[6]);
366 debug_pstring("expand[7]", conf.expand[7]);
367 debug_pstring("expand[8]", conf.expand[8]);
368 debug_pstring("expand[9]", conf.expand[9]);
369 }
370 #endif
371
372 /*
373 **************************************************************************
374 * String collection routines
375 **************************************************************************
376 */
377 #define STRALLOCSIZE 128
378 static char *str;
379 static int nstr;
380 static int nastr;
381
382 static void reset_str(void)
383 {
384 nstr = 0;
385 }
386
387 static void add_str(int c)
388 {
389 if(nstr + 1 + 1 > nastr)
390 {
391 str = xrealloc(str, nastr+STRALLOCSIZE);
392 nastr += STRALLOCSIZE;
393 }
394 str[nstr++] = c;
395 }
396
397 static char *get_str(void)
398 {
399 if(!str)
400 return xstrdup("");
401
402 str[nstr] = '\0';
403 return xstrdup(str);
404 }
405
406 /*
407 **************************************************************************
408 * Input routines
409 **************************************************************************
410 */
411 static char *buf = NULL;
412 static int bufsize = 0;
413 static int bufalloc = 0;
414 static int bufpos = 0;
415 static int bufunput = -1;
416 static FILE *buffp;
417
418 static void set_input(FILE *fp, char *s)
419 {
420 assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
421 buffp = fp;
422 bufsize = bufpos = 0;
423 if(s)
424 {
425 if(!buf)
426 {
427 bufalloc = 8192;
428 buf = xmalloc(bufalloc * sizeof(*buf));
429 }
430 bufsize = strlen(s);
431 assert(bufsize < bufalloc);
432 strcpy(buf, s);
433 }
434 }
435
436 static int get_input(void)
437 {
438 if(bufunput != -1)
439 {
440 int c = bufunput;
441 bufunput = -1;
442 return c;
443 }
444
445 if(bufpos < bufsize)
446 {
447 assert(buf != NULL);
448 retry_input:
449 return (int)((unsigned char)buf[bufpos++]);
450 }
451
452 if(!buf)
453 {
454 bufalloc = 8192;
455 buf = xmalloc(bufalloc * sizeof(*buf));
456 bufsize = bufpos = 0;
457 }
458 if(buffp)
459 {
460 bufsize = fread(buf, 1, bufalloc, buffp);
461 bufpos = 0;
462 if(!bufsize)
463 return EOF;
464 goto retry_input;
465 }
466 return EOF;
467 }
468
469 static void unget_input(int c)
470 {
471 bufunput = c;
472 }
473
474 /*
475 **************************************************************************
476 * Lexical scanner
477 **************************************************************************
478 */
479 static int config_lex(void)
480 {
481 int ch;
482 while(1)
483 {
484 ch = get_input();
485 if(ch == '\n')
486 line_number++;
487
488 if(isspace(ch))
489 continue;
490
491 switch(ch)
492 {
493 case EOF:
494 case '=':
495 case ';':
496 return ch;
497
498 case '#': /* Comment */
499 while((ch = get_input()) != '\n' && ch != EOF)
500 ;
501 if(ch != EOF)
502 unget_input(ch);
503 break;
504
505 case '"':
506 reset_str();
507 while(1)
508 {
509 char c[4];
510 ch = get_input();
511 switch(ch)
512 {
513 case '\\': /* Start an escape sequence */
514 switch(ch = get_input())
515 {
516 default: /* This includes '\\', '"' and embedded newlines */
517 add_str(ch);
518 break;
519 case 'a': add_str('\a'); break;
520 case 'b': add_str('\b'); break;
521 case 'f': add_str('\f'); break;
522 case 'n': add_str('\n'); break;
523 case 'r': add_str('\r'); break;
524 case 't': add_str('\t'); break;
525 case 'v': add_str('\v'); break;
526 case 'x':
527 case 'X': /* Hex escape */
528 c[0] = get_input();
529 c[1] = get_input();
530 c[2] = '\0';
531 if(!isxdigit((int)(unsigned char)c[0]) || !isxdigit((int)(unsigned char)c[1]))
532 yyerror("Invalid hex escape");
533 add_str((int)strtol(c, NULL, 16));
534 break;
535 case '0':
536 case '1':
537 case '2': /* Octal escape */
538 c[0] = ch;
539 c[1] = c[2] = c[3] = '\0';
540 if((ch = get_input()) >= '0' && ch <= '7')
541 c[1] = ch;
542 else
543 unget_input(ch);
544 if((ch = get_input()) >= '0' && ch <= '7')
545 c[2] = ch;
546 else
547 unget_input(ch);
548 add_str((int)strtol(c, NULL, 8));
549 break;
550 case EOF:
551 yyerror("Unexpected EOF in escape");
552 break;
553 }
554 break;
555 case '"':
556 yylval.str = get_str();
557 return TYPE_STRING;
558 case '\n':
559 yyerror("Newline in string");
560 break;
561 case EOF:
562 yyerror("Unexpected EOF in string");
563 break;
564 default:
565 add_str(ch);
566 break;
567 }
568 }
569 break;
570
571 default:
572 if(isalpha(ch) || ch == '_')
573 {
574 keyword_t skw;
575 keyword_t *kw;
576 /* Collect keyword */
577 reset_str();
578 add_str(ch);
579 while(1)
580 {
581 ch = get_input();
582 if(isalnum(ch) || ch == '_')
583 add_str(ch);
584 else
585 {
586 unget_input(ch);
587 break;
588 }
589 }
590 skw.keyword = get_str();
591 kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
592 if(!kw)
593 yyerror("Unknown keyword '%s'", skw.keyword);
594 xfree(skw.keyword);
595 if(kw->type == TYPE_VALUE)
596 {
597 yylval.i = kw->confref.val;
598 return TYPE_NUMBER;
599 }
600 yylval.kw = kw;
601 return TYPE_KEYWORD;
602 }
603 else if(isdigit(ch) || ch == '+' || ch == '-')
604 {
605 char *s;
606 char *eptr;
607 int type = TYPE_NUMBER;
608 /* Collect number */
609 reset_str();
610 add_str(ch);
611 while(1)
612 {
613 ch = get_input();
614 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
615 add_str(ch);
616 else
617 {
618 unget_input(ch);
619 break;
620 }
621 if(ch == '.')
622 type = TYPE_DOUBLE;
623 }
624 s = get_str();
625 if(type == TYPE_DOUBLE)
626 {
627 yylval.d = strtod(s, &eptr);
628 if(*eptr)
629 yyerror("Invalid floating point number");
630 }
631 else
632 {
633 yylval.i = strtol(s, &eptr, 0);
634 if(*eptr)
635 yyerror("Invalid number");
636 }
637 xfree(s);
638 return type;
639 }
640 else
641 yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
642 break;
643 }
644 }
645 }
646
647 static void set_color(color_t *c, char *s)
648 {
649 char *cptr;
650 if(*s != '#' || strlen(s) != 7)
651 {
652 colorerror:
653 yyerror("Invalid color value");
654 }
655 c->b = strtol(s+5, &cptr, 16);
656 if(*cptr)
657 goto colorerror;
658 s[5] = '\0';
659 c->g = strtol(s+3, &cptr, 16);
660 if(*cptr)
661 goto colorerror;
662 s[3] = '\0';
663 c->r = strtol(s+1, &cptr, 16);
664 if(*cptr)
665 goto colorerror;
666 }
667
668 static gdFontPtr get_font(int id)
669 {
670 switch(id)
671 {
672 case 0: return gdFontTiny;
673 case 1: return gdFontSmall;
674 default:
675 case 2: return gdFontMediumBold;
676 case 3: return gdFontLarge;
677 case 4: return gdFontGiant;
678 }
679 }
680
681 /*
682 **************************************************************************
683 * The config parser
684 * Grammar:
685 * file : <Empty>
686 * | lines
687 * ;
688 *
689 * lines : line
690 * | lines line
691 * ;
692 *
693 * line : <keyword> '=' <value> ';'
694 * | ';'
695 * ;
696 **************************************************************************
697 */
698 static void config_parse(void)
699 {
700 int state = 0;
701 int token;
702 int t;
703 keyword_t *kw = NULL;
704
705 while(1)
706 {
707 token = config_lex();
708 if(token == EOF)
709 {
710 if(state)
711 yyerror("Unexpected EOF");
712 break;
713 }
714
715 switch(state)
716 {
717 case 0:
718 if(token == TYPE_KEYWORD)
719 {
720 kw = yylval.kw;
721 state = 1;
722 }
723 else if(token != ';')
724 yyerror("Keyword expected");
725 break;
726 case 1:
727 if(token != '=')
728 yyerror("'=' expected");
729 state = 2;
730 break;
731 case 2:
732 if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
733 t = TYPE_NUMBER;
734 else if(kw->type == TYPE_COLOR)
735 t = TYPE_STRING;
736 else
737 t = kw->type;
738
739 if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
740 {
741 /* Auto promote numbers to doubles if required */
742 yylval.d = (double)yylval.i;
743 token = TYPE_DOUBLE;
744 }
745
746 if(token != t)
747 {
748 char *e;
749 switch(kw->type)
750 {
751 case TYPE_STRING: e = "String"; break;
752 case TYPE_NUMBER: e = "Number"; break;
753 case TYPE_COLOR: e = "Color"; break;
754 case TYPE_FONT: e = "Font"; break;
755 case TYPE_BOOLEAN: e = "Boolean"; break;
756 case TYPE_DOUBLE: e = "Double"; break;
757 default: e = "Internal error: Unknown type"; break;
758 }
759 yyerror("%s expected", e);
760 }
761 #ifdef DEBUG
762 printf("processing: '%s'\n", kw->keyword);
763 #endif
764 switch(kw->type)
765 {
766 case TYPE_STRING:
767 *kw->confref.s = yylval.str;
768 break;
769 case TYPE_NUMBER:
770 *kw->confref.i = yylval.i;
771 break;
772 case TYPE_BOOLEAN:
773 if(yylval.i == -1)
774 *kw->confref.i = !*kw->confref.i;
775 else
776 *kw->confref.i = yylval.i != 0;
777 break;
778 case TYPE_COLOR:
779 set_color(kw->confref.c, yylval.str);
780 break;
781 case TYPE_FONT:
782 kw->confref.f->gdfont = get_font(yylval.i);
783 break;
784 case TYPE_DOUBLE:
785 *kw->confref.d = yylval.d;
786 break;
787 default:
788 yyerror("Internal error: Unknown type passed %d", kw->type);
789 break;
790 }
791 state = 3;
792 break;
793 case 3:
794 if(token != ';')
795 yyerror("';' expected");
796 state = 0;
797 break;
798 default:
799 yyerror("Internal error: invalid state %d", state);
800 break;
801 }
802 }
803 }
804
805 /*
806 **************************************************************************
807 * Configuration
808 **************************************************************************
809 */
810 void stack_option(const char *opt)
811 {
812 stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
813 stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
814 strcpy(stacked_opts[nstacked_opts], opt);
815 strcat(stacked_opts[nstacked_opts], ";");
816 nstacked_opts++;
817 #ifdef DEBUG
818 printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
819 #endif
820 }
821
822 void read_config(const char *path)
823 {
824 FILE *fp;
825
826 /* Make sure we have them sorted for bsearch */
827 qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
828
829 if(path)
830 {
831 if((fp = fopen(path, "r")) != NULL)
832 input_file = path;
833 }
834 else
835 {
836 if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
837 {
838 if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
839 input_file = ETCDIR "/" CONFFILENAME;
840 }
841 else
842 input_file = "./" CONFFILENAME;
843 }
844
845 if(fp)
846 {
847 line_number = 1;
848 set_input(fp, NULL);
849 config_parse();
850 fclose(fp);
851 input_file = NULL;
852 }
853
854 if(nstacked_opts)
855 {
856 int i;
857 for(i = 0; i < nstacked_opts; i++)
858 {
859 line_number = 0;
860 set_input(NULL, stacked_opts[i]);
861 input_file = stacked_opts[i];
862 #ifdef DEBUG
863 printf("parsing stacked option: '%s'\n", stacked_opts[i]);
864 #endif
865 config_parse();
866 }
867 input_file = NULL;
868 }
869 #ifdef DEBUG
870 dump_config();
871 #endif
872 }

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