/[CvsGraph]/cvsgraph/readconf.c
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Revision 1.5 - (show annotations)
Thu Jul 18 15:26:34 2002 UTC (15 years, 3 months ago) by bertho
Branch: MAIN
Changes since 1.4: +2 -0 lines
File MIME type: text/plain
First changes for left_right drawing of the tree.
Still missing proper branch_dupbox, upside_down and imagemap support.
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 { "upside_down", TYPE_BOOLEAN, { &conf.upside_down } },
100 { "left_right", TYPE_BOOLEAN, { &conf.left_right } },
101 { "auto_stretch", TYPE_BOOLEAN, { &conf.auto_stretch } },
102 { "color_bg", TYPE_COLOR, { &conf.color_bg } },
103 { "transparent_bg", TYPE_BOOLEAN, { &conf.transparent_bg } },
104 { "cvsmodule", TYPE_STRING, { &conf.cvsmodule } },
105 { "cvsroot", TYPE_STRING, { &conf.cvsroot } },
106 { "date_format", TYPE_STRING, { &conf.date_format } },
107 { "box_shadow", TYPE_BOOLEAN, { &conf.box_shadow } },
108 { "strip_untagged", TYPE_BOOLEAN, { &conf.strip_untagged } },
109 { "strip_first_rev", TYPE_BOOLEAN, { &conf.strip_first_rev } },
110 { "anti_alias", TYPE_BOOLEAN, { &conf.anti_alias } },
111 { "use_ttf", TYPE_BOOLEAN, { &conf.use_ttf } },
112 { "parse_logs", TYPE_BOOLEAN, { &conf.parse_logs } },
113 { "thick_lines", TYPE_NUMBER, { &conf.thick_lines } },
114 { "rev_color", TYPE_COLOR, { &conf.rev_color } },
115 { "rev_bgcolor", TYPE_COLOR, { &conf.rev_bgcolor } },
116 { "rev_font", TYPE_FONT, { &conf.rev_font.gdfont } },
117 { "rev_ttfont", TYPE_STRING, { &conf.rev_font.ttfont } },
118 { "rev_ttsize", TYPE_DOUBLE, { &conf.rev_font.ttsize } },
119 { "rev_separator", TYPE_NUMBER, { &conf.rev_separator } },
120 { "rev_minline", TYPE_NUMBER, { &conf.rev_minline } },
121 { "rev_maxline", TYPE_NUMBER, { &conf.rev_maxline } },
122 { "rev_lspace", TYPE_NUMBER, { &conf.rev_lspace } },
123 { "rev_rspace", TYPE_NUMBER, { &conf.rev_rspace } },
124 { "rev_tspace", TYPE_NUMBER, { &conf.rev_tspace } },
125 { "rev_bspace", TYPE_NUMBER, { &conf.rev_bspace } },
126 { "rev_text", TYPE_STRING, { &conf.rev_text } },
127 { "rev_text_color", TYPE_COLOR, { &conf.rev_text_color } },
128 { "rev_text_font", TYPE_FONT, { &conf.rev_text_font.gdfont } },
129 { "rev_text_ttfont", TYPE_STRING, { &conf.rev_text_font.ttfont } },
130 { "rev_text_ttsize", TYPE_DOUBLE, { &conf.rev_text_font.ttsize } },
131 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
132 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
133 { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
134 { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
135 { "title", TYPE_STRING, { &conf.title } },
136 { "title_x", TYPE_NUMBER, { &conf.title_x } },
137 { "title_y", TYPE_NUMBER, { &conf.title_y } },
138 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
139 { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
140 { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
141 { "title_align", TYPE_NUMBER, { &conf.title_align } },
142 { "title_color", TYPE_COLOR, { &conf.title_color } },
143 { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
144 { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
145 { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
146 { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
147 { "image_type", TYPE_NUMBER, { &conf.image_type } },
148 { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
149 { "map_name", TYPE_STRING, { &conf.map_name } },
150 { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
151 { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
152 { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
153 { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
154 { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
155 { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
156 { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
157 { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
158 { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
159 { "true", TYPE_VALUE, { (void *)1 } },
160 { "false", TYPE_VALUE, { (void *)0 } },
161 { "not", TYPE_VALUE, { (void *)-1 } },
162 { "left", TYPE_VALUE, { (void *)0 } },
163 { "center", TYPE_VALUE, { (void *)1 } },
164 { "right", TYPE_VALUE, { (void *)2 } },
165 { "tiny", TYPE_VALUE, { (void *)0 } },
166 { "small", TYPE_VALUE, { (void *)1 } },
167 { "medium", TYPE_VALUE, { (void *)2 } },
168 { "large", TYPE_VALUE, { (void *)3 } },
169 { "giant", TYPE_VALUE, { (void *)4 } },
170 };
171
172 #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
173
174 static int cmp_kw(const void *k1, const void *k2)
175 {
176 return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
177 }
178
179 /*
180 **************************************************************************
181 * Debug routines
182 **************************************************************************
183 */
184 #ifdef DEBUG
185 #define DEBUGSTREAM stdout
186 static void debug_pname(const char *n)
187 {
188 fprintf(DEBUGSTREAM, "%-16s: ", n);
189 }
190
191 static void debug_pstring(const char *n, const char *a)
192 {
193 debug_pname(n);
194 if(!a)
195 fprintf(DEBUGSTREAM, "<not-set>\n");
196 else
197 {
198 fputc('\'', DEBUGSTREAM);
199 for(; *a; a++)
200 {
201 if(isprint(*a))
202 fputc(*a, DEBUGSTREAM);
203 else
204 {
205 fputc('\\', DEBUGSTREAM);
206 switch(*a)
207 {
208 case '\a': fputc('a', DEBUGSTREAM); break;
209 case '\b': fputc('b', DEBUGSTREAM); break;
210 case '\f': fputc('f', DEBUGSTREAM); break;
211 case '\n': fputc('n', DEBUGSTREAM); break;
212 case '\r': fputc('r', DEBUGSTREAM); break;
213 case '\t': fputc('t', DEBUGSTREAM); break;
214 case '\v': fputc('v', DEBUGSTREAM); break;
215 default:
216 fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
217 }
218 }
219 }
220 fprintf(DEBUGSTREAM, "'\n");
221 }
222 }
223
224 static void debug_pbool(const char *n, int b)
225 {
226 debug_pname(n);
227 fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
228 }
229
230 static void debug_pint(const char *n, int i)
231 {
232 debug_pname(n);
233 fprintf(DEBUGSTREAM, "%i\n", i);
234 }
235
236 static void debug_pdouble(const char *n, double d)
237 {
238 debug_pname(n);
239 fprintf(DEBUGSTREAM, "%g\n", d);
240 }
241
242 static void debug_pfont(const char *n, gdFontPtr f)
243 {
244 const char *s = "<Unknown font>";
245 debug_pname(n);
246 if(f == gdFontTiny)
247 s = "gdFontTiny";
248 else if(f == gdFontSmall)
249 s = "gdFontSmall";
250 else if(f == gdFontMediumBold)
251 s = "gdFontMediumBold";
252 else if(f == gdFontLarge)
253 s = "gdFontLarge";
254 else if(f == gdFontGiant)
255 s = "gdFontGiant";
256 fprintf(DEBUGSTREAM, "%s\n", s);
257 }
258
259 static void debug_pcolor(const char *n, color_t *c)
260 {
261 debug_pname(n);
262 fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
263 }
264
265 void dump_config(void)
266 {
267 debug_pstring("cvsroot", conf.cvsroot);
268 debug_pstring("cvsmodule", conf.cvsmodule);
269 debug_pstring("date_format", conf.date_format);
270
271 debug_pcolor("color_bg", &conf.color_bg);
272 debug_pbool("box_shadow", conf.box_shadow);
273 debug_pbool("upside_down", conf.upside_down);
274 debug_pbool("left_right", conf.left_right);
275 debug_pbool("strip_untagged", conf.strip_untagged);
276 debug_pbool("strip_first_rev", conf.strip_first_rev);
277 debug_pbool("auto_stretch", conf.auto_stretch);
278 debug_pbool("anti_alias", conf.anti_alias);
279 debug_pbool("use_ttf", conf.use_ttf);
280 debug_pint("thick_lines", conf.thick_lines);
281
282 debug_pfont("tag_font", conf.tag_font.gdfont);
283 debug_pstring("tag_ttfont", conf.tag_font.ttfont);
284 debug_psouble("tag_ttsize", conf.tag_font.ttsize);
285 debug_pcolor("tag_color", &conf.tag_color);
286
287 debug_pfont("rev_font", conf.rev_font.gdfont);
288 debug_pstring("rev_ttfont", conf.rev_font.ttfont);
289 debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
290 debug_pcolor("rev_color", &conf.rev_color);
291 debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
292 debug_pint("rev_separator", conf.rev_separator);
293 debug_pint("rev_minline", conf.rev_minline);
294 debug_pint("rev_maxline", conf.rev_maxline);
295 debug_pint("rev_lspace", conf.rev_lspace);
296 debug_pint("rev_rspace", conf.rev_rspace);
297 debug_pint("rev_tspace", conf.rev_tspace);
298 debug_pint("rev_bspace", conf.rev_bspace);
299 debug_pstring("rev_text", conf.rev_text);
300 debug_pcolor("rev_text_color", &conf.rev_text_color);
301 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
302 debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
303 debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
304
305 debug_pfont("branch_font", conf.branch_font.gdfont);
306 debug_pstring("branch_ttfont", conf.branch_font.ttfont);
307 debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
308 debug_pcolor("branch_color", &conf.branch_color);
309 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
310 debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
311 debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
312 debug_pcolor("branch_tag_color", &conf.branch_tag_color);
313 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
314 debug_pint("branch_lspace", conf.branch_lspace);
315 debug_pint("branch_rspace", conf.branch_rspace);
316 debug_pint("branch_tspace", conf.branch_tspace);
317 debug_pint("branch_bspace", conf.branch_bspace);
318 debug_pint("branch_connect", conf.branch_connect);
319 debug_pint("branch_margin", conf.branch_margin);
320 debug_pint("branch_dupbox", conf.branch_dupbox);
321
322 debug_pstring("title", conf.title);
323 debug_pint("title_x", conf.title_x);
324 debug_pint("title_y", conf.title_y);
325 debug_pfont("title_font", conf.title_font.gdfont);
326 debug_pstring("title_ttfont", conf.title_font.ttfont);
327 debug_pdouble("title_ttsize", conf.title_font.ttsize);
328 debug_pint("title_align", conf.title_align);
329 debug_pcolor("title_color", &conf.title_color);
330
331 debug_pint("margin_top", conf.margin_top);
332 debug_pint("margin_bottom", conf.margin_bottom);
333 debug_pint("margin_left", conf.margin_left);
334 debug_pint("margin_right", conf.margin_right);
335
336 debug_pint("image_type", conf.image_type);
337 debug_pint("image_quality", conf.image_quality);
338
339 debug_pstring("map_name", conf.map_name);
340 debug_pstring("map_branch_href", conf.map_branch_href);
341 debug_pstring("map_branch_alt", conf.map_branch_alt);
342 debug_pstring("map_rev_href", conf.map_rev_href);
343 debug_pstring("map_rev_alt", conf.map_rev_alt);
344 debug_pstring("map_diff_href", conf.map_diff_href);
345 debug_pstring("map_diff_alt", conf.map_diff_alt);
346
347 debug_pstring("expand[0]", conf.expand[0]);
348 debug_pstring("expand[1]", conf.expand[1]);
349 debug_pstring("expand[2]", conf.expand[2]);
350 debug_pstring("expand[3]", conf.expand[3]);
351 debug_pstring("expand[4]", conf.expand[4]);
352 debug_pstring("expand[5]", conf.expand[5]);
353 debug_pstring("expand[6]", conf.expand[6]);
354 debug_pstring("expand[7]", conf.expand[7]);
355 debug_pstring("expand[8]", conf.expand[8]);
356 debug_pstring("expand[9]", conf.expand[9]);
357 }
358 #endif
359
360 /*
361 **************************************************************************
362 * String collection routines
363 **************************************************************************
364 */
365 #define STRALLOCSIZE 128
366 static char *str;
367 static int nstr;
368 static int nastr;
369
370 static void reset_str(void)
371 {
372 nstr = 0;
373 }
374
375 static void add_str(int c)
376 {
377 if(nstr + 1 + 1 > nastr)
378 {
379 str = xrealloc(str, nastr+STRALLOCSIZE);
380 nastr += STRALLOCSIZE;
381 }
382 str[nstr++] = c;
383 }
384
385 static char *get_str(void)
386 {
387 if(!str)
388 return xstrdup("");
389
390 str[nstr] = '\0';
391 return xstrdup(str);
392 }
393
394 /*
395 **************************************************************************
396 * Input routines
397 **************************************************************************
398 */
399 static char *buf = NULL;
400 static int bufsize = 0;
401 static int bufalloc = 0;
402 static int bufpos = 0;
403 static int bufunput = -1;
404 static FILE *buffp;
405
406 static void set_input(FILE *fp, char *s)
407 {
408 assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
409 buffp = fp;
410 bufsize = bufpos = 0;
411 if(s)
412 {
413 if(!buf)
414 {
415 bufalloc = 8192;
416 buf = xmalloc(bufalloc * sizeof(*buf));
417 }
418 bufsize = strlen(s);
419 assert(bufsize < bufalloc);
420 strcpy(buf, s);
421 }
422 }
423
424 static int get_input(void)
425 {
426 if(bufunput != -1)
427 {
428 int c = bufunput;
429 bufunput = -1;
430 return c;
431 }
432
433 if(bufpos < bufsize)
434 {
435 assert(buf != NULL);
436 retry_input:
437 return (int)((unsigned char)buf[bufpos++]);
438 }
439
440 if(!buf)
441 {
442 bufalloc = 8192;
443 buf = xmalloc(bufalloc * sizeof(*buf));
444 bufsize = bufpos = 0;
445 }
446 if(buffp)
447 {
448 bufsize = fread(buf, 1, bufalloc, buffp);
449 bufpos = 0;
450 if(!bufsize)
451 return EOF;
452 goto retry_input;
453 }
454 return EOF;
455 }
456
457 static void unget_input(int c)
458 {
459 bufunput = c;
460 }
461
462 /*
463 **************************************************************************
464 * Lexical scanner
465 **************************************************************************
466 */
467 static int config_lex(void)
468 {
469 int ch;
470 while(1)
471 {
472 ch = get_input();
473 if(ch == '\n')
474 line_number++;
475
476 if(isspace(ch))
477 continue;
478
479 switch(ch)
480 {
481 case EOF:
482 case '=':
483 case ';':
484 return ch;
485
486 case '#': /* Comment */
487 while((ch = get_input()) != '\n' && ch != EOF)
488 ;
489 if(ch != EOF)
490 unget_input(ch);
491 break;
492
493 case '"':
494 reset_str();
495 while(1)
496 {
497 char c[4];
498 ch = get_input();
499 switch(ch)
500 {
501 case '\\': /* Start an escape sequence */
502 switch(ch = get_input())
503 {
504 default: /* This includes '\\', '"' and embedded newlines */
505 add_str(ch);
506 break;
507 case 'a': add_str('\a'); break;
508 case 'b': add_str('\b'); break;
509 case 'f': add_str('\f'); break;
510 case 'n': add_str('\n'); break;
511 case 'r': add_str('\r'); break;
512 case 't': add_str('\t'); break;
513 case 'v': add_str('\v'); break;
514 case 'x':
515 case 'X': /* Hex escape */
516 c[0] = get_input();
517 c[1] = get_input();
518 c[2] = '\0';
519 if(!isxdigit(c[0]) || !isxdigit(c[1]))
520 yyerror("Invalid hex escape");
521 add_str((int)strtol(c, NULL, 16));
522 break;
523 case '0':
524 case '1':
525 case '2': /* Octal escape */
526 c[0] = ch;
527 c[1] = c[2] = c[3] = '\0';
528 if((ch = get_input()) >= '0' && ch <= '7')
529 c[1] = ch;
530 else
531 unget_input(ch);
532 if((ch = get_input()) >= '0' && ch <= '7')
533 c[2] = ch;
534 else
535 unget_input(ch);
536 add_str((int)strtol(c, NULL, 8));
537 break;
538 case EOF:
539 yyerror("Unexpected EOF in escape");
540 break;
541 }
542 break;
543 case '"':
544 yylval.str = get_str();
545 return TYPE_STRING;
546 case '\n':
547 yyerror("Newline in string");
548 break;
549 case EOF:
550 yyerror("Unexpected EOF in string");
551 break;
552 default:
553 add_str(ch);
554 break;
555 }
556 }
557 break;
558
559 default:
560 if(isalpha(ch) || ch == '_')
561 {
562 keyword_t skw;
563 keyword_t *kw;
564 /* Collect keyword */
565 reset_str();
566 add_str(ch);
567 while(1)
568 {
569 ch = get_input();
570 if(isalpha(ch) || ch == '_')
571 add_str(ch);
572 else
573 {
574 unget_input(ch);
575 break;
576 }
577 }
578 skw.keyword = get_str();
579 kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
580 if(!kw)
581 yyerror("Unknown keyword '%s'", skw.keyword);
582 xfree(skw.keyword);
583 if(kw->type == TYPE_VALUE)
584 {
585 yylval.i = kw->confref.val;
586 return TYPE_NUMBER;
587 }
588 yylval.kw = kw;
589 return TYPE_KEYWORD;
590 }
591 else if(isdigit(ch) || ch == '+' || ch == '-')
592 {
593 char *s;
594 char *eptr;
595 int type = TYPE_NUMBER;
596 /* Collect number */
597 reset_str();
598 add_str(ch);
599 while(1)
600 {
601 ch = get_input();
602 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
603 add_str(ch);
604 else
605 {
606 unget_input(ch);
607 break;
608 }
609 if(ch == '.')
610 type = TYPE_DOUBLE;
611 }
612 s = get_str();
613 if(type == TYPE_DOUBLE)
614 {
615 yylval.d = strtod(s, &eptr);
616 if(*eptr)
617 yyerror("Invalid floating point number");
618 }
619 else
620 {
621 yylval.i = strtol(s, &eptr, 0);
622 if(*eptr)
623 yyerror("Invalid number");
624 }
625 xfree(s);
626 return type;
627 }
628 else
629 yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
630 break;
631 }
632 }
633 }
634
635 static void set_color(color_t *c, char *s)
636 {
637 char *cptr;
638 if(*s != '#' || strlen(s) != 7)
639 {
640 colorerror:
641 yyerror("Invalid color value");
642 }
643 c->b = strtol(s+5, &cptr, 16);
644 if(*cptr)
645 goto colorerror;
646 s[5] = '\0';
647 c->g = strtol(s+3, &cptr, 16);
648 if(*cptr)
649 goto colorerror;
650 s[3] = '\0';
651 c->r = strtol(s+1, &cptr, 16);
652 if(*cptr)
653 goto colorerror;
654 }
655
656 static gdFontPtr get_font(int id)
657 {
658 switch(id)
659 {
660 case 0: return gdFontTiny;
661 case 1: return gdFontSmall;
662 default:
663 case 2: return gdFontMediumBold;
664 case 3: return gdFontLarge;
665 case 4: return gdFontGiant;
666 }
667 }
668
669 /*
670 **************************************************************************
671 * The config parser
672 * Grammar:
673 * file : <Empty>
674 * | lines
675 * ;
676 *
677 * lines : line
678 * | lines line
679 * ;
680 *
681 * line : <keyword> '=' <value> ';'
682 * | ';'
683 * ;
684 **************************************************************************
685 */
686 static void config_parse(void)
687 {
688 int state = 0;
689 int token;
690 int t;
691 keyword_t *kw = NULL;
692
693 while(1)
694 {
695 token = config_lex();
696 if(token == EOF)
697 {
698 if(state)
699 yyerror("Unexpected EOF");
700 break;
701 }
702
703 switch(state)
704 {
705 case 0:
706 if(token == TYPE_KEYWORD)
707 {
708 kw = yylval.kw;
709 state = 1;
710 }
711 else if(token != ';')
712 yyerror("Keyword expected");
713 break;
714 case 1:
715 if(token != '=')
716 yyerror("'=' expected");
717 state = 2;
718 break;
719 case 2:
720 if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
721 t = TYPE_NUMBER;
722 else if(kw->type == TYPE_COLOR)
723 t = TYPE_STRING;
724 else
725 t = kw->type;
726
727 if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
728 {
729 /* Auto promote numbers to doubles if required */
730 yylval.d = (double)yylval.i;
731 token = TYPE_DOUBLE;
732 }
733
734 if(token != t)
735 {
736 char *e;
737 switch(kw->type)
738 {
739 case TYPE_STRING: e = "String"; break;
740 case TYPE_NUMBER: e = "Number"; break;
741 case TYPE_COLOR: e = "Color"; break;
742 case TYPE_FONT: e = "Font"; break;
743 case TYPE_BOOLEAN: e = "Boolean"; break;
744 case TYPE_DOUBLE: e = "Double"; break;
745 default: e = "Internal error: Unknown type"; break;
746 }
747 yyerror("%s expected", e);
748 }
749 #ifdef DEBUG
750 printf("processing: '%s'\n", kw->keyword);
751 #endif
752 switch(kw->type)
753 {
754 case TYPE_STRING:
755 *kw->confref.s = yylval.str;
756 break;
757 case TYPE_NUMBER:
758 *kw->confref.i = yylval.i;
759 break;
760 case TYPE_BOOLEAN:
761 if(yylval.i == -1)
762 *kw->confref.i = !*kw->confref.i;
763 else
764 *kw->confref.i = yylval.i != 0;
765 break;
766 case TYPE_COLOR:
767 set_color(kw->confref.c, yylval.str);
768 break;
769 case TYPE_FONT:
770 kw->confref.f->gdfont = get_font(yylval.i);
771 break;
772 case TYPE_DOUBLE:
773 *kw->confref.d = yylval.d;
774 break;
775 default:
776 yyerror("Internal error: Unknown type passed %d", kw->type);
777 break;
778 }
779 state = 3;
780 break;
781 case 3:
782 if(token != ';')
783 yyerror("';' expected");
784 state = 0;
785 break;
786 default:
787 yyerror("Internal error: invalid state %d", state);
788 break;
789 }
790 }
791 }
792
793 /*
794 **************************************************************************
795 * Configuration
796 **************************************************************************
797 */
798 void stack_option(const char *opt)
799 {
800 stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
801 stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
802 strcpy(stacked_opts[nstacked_opts], opt);
803 strcat(stacked_opts[nstacked_opts], ";");
804 nstacked_opts++;
805 #ifdef DEBUG
806 printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
807 #endif
808 }
809
810 void read_config(const char *path)
811 {
812 FILE *fp;
813
814 /* Make sure we have them sorted for bsearch */
815 qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
816
817 if(path)
818 {
819 if((fp = fopen(path, "r")) != NULL)
820 input_file = path;
821 }
822 else
823 {
824 if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
825 {
826 if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
827 input_file = ETCDIR "/" CONFFILENAME;
828 }
829 else
830 input_file = "./" CONFFILENAME;
831 }
832
833 if(fp)
834 {
835 line_number = 1;
836 set_input(fp, NULL);
837 config_parse();
838 fclose(fp);
839 input_file = NULL;
840 }
841
842 if(nstacked_opts)
843 {
844 int i;
845 for(i = 0; i < nstacked_opts; i++)
846 {
847 line_number = 0;
848 set_input(NULL, stacked_opts[i]);
849 input_file = stacked_opts[i];
850 #ifdef DEBUG
851 printf("parsing stacked option: '%s'\n", stacked_opts[i]);
852 #endif
853 config_parse();
854 }
855 input_file = NULL;
856 }
857 #ifdef DEBUG
858 dump_config();
859 #endif
860 }

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