/[CvsGraph]/cvsgraph/readconf.c
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Revision 1.6 - (show annotations)
Sat Jul 20 20:41:40 2002 UTC (15 years, 5 months ago) by bertho
Branch: MAIN
CVS Tags: REL_1_3_0
Changes since 1.5: +1 -0 lines
File MIME type: text/plain
Add rev_maxtags config to limit number of tags per revison box
Hopefully fix configure.in (finally?)
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 { "rev_maxtags", TYPE_NUMBER, { &conf.rev_maxtags } },
132 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
133 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
134 { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
135 { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
136 { "title", TYPE_STRING, { &conf.title } },
137 { "title_x", TYPE_NUMBER, { &conf.title_x } },
138 { "title_y", TYPE_NUMBER, { &conf.title_y } },
139 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
140 { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
141 { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
142 { "title_align", TYPE_NUMBER, { &conf.title_align } },
143 { "title_color", TYPE_COLOR, { &conf.title_color } },
144 { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
145 { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
146 { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
147 { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
148 { "image_type", TYPE_NUMBER, { &conf.image_type } },
149 { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
150 { "map_name", TYPE_STRING, { &conf.map_name } },
151 { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
152 { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
153 { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
154 { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
155 { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
156 { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
157 { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
158 { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
159 { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
160 { "true", TYPE_VALUE, { (void *)1 } },
161 { "false", TYPE_VALUE, { (void *)0 } },
162 { "not", TYPE_VALUE, { (void *)-1 } },
163 { "left", TYPE_VALUE, { (void *)0 } },
164 { "center", TYPE_VALUE, { (void *)1 } },
165 { "right", TYPE_VALUE, { (void *)2 } },
166 { "tiny", TYPE_VALUE, { (void *)0 } },
167 { "small", TYPE_VALUE, { (void *)1 } },
168 { "medium", TYPE_VALUE, { (void *)2 } },
169 { "large", TYPE_VALUE, { (void *)3 } },
170 { "giant", TYPE_VALUE, { (void *)4 } },
171 };
172
173 #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
174
175 static int cmp_kw(const void *k1, const void *k2)
176 {
177 return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
178 }
179
180 /*
181 **************************************************************************
182 * Debug routines
183 **************************************************************************
184 */
185 #ifdef DEBUG
186 #define DEBUGSTREAM stdout
187 static void debug_pname(const char *n)
188 {
189 fprintf(DEBUGSTREAM, "%-16s: ", n);
190 }
191
192 static void debug_pstring(const char *n, const char *a)
193 {
194 debug_pname(n);
195 if(!a)
196 fprintf(DEBUGSTREAM, "<not-set>\n");
197 else
198 {
199 fputc('\'', DEBUGSTREAM);
200 for(; *a; a++)
201 {
202 if(isprint(*a))
203 fputc(*a, DEBUGSTREAM);
204 else
205 {
206 fputc('\\', DEBUGSTREAM);
207 switch(*a)
208 {
209 case '\a': fputc('a', DEBUGSTREAM); break;
210 case '\b': fputc('b', DEBUGSTREAM); break;
211 case '\f': fputc('f', DEBUGSTREAM); break;
212 case '\n': fputc('n', DEBUGSTREAM); break;
213 case '\r': fputc('r', DEBUGSTREAM); break;
214 case '\t': fputc('t', DEBUGSTREAM); break;
215 case '\v': fputc('v', DEBUGSTREAM); break;
216 default:
217 fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
218 }
219 }
220 }
221 fprintf(DEBUGSTREAM, "'\n");
222 }
223 }
224
225 static void debug_pbool(const char *n, int b)
226 {
227 debug_pname(n);
228 fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
229 }
230
231 static void debug_pint(const char *n, int i)
232 {
233 debug_pname(n);
234 fprintf(DEBUGSTREAM, "%i\n", i);
235 }
236
237 static void debug_pdouble(const char *n, double d)
238 {
239 debug_pname(n);
240 fprintf(DEBUGSTREAM, "%g\n", d);
241 }
242
243 static void debug_pfont(const char *n, gdFontPtr f)
244 {
245 const char *s = "<Unknown font>";
246 debug_pname(n);
247 if(f == gdFontTiny)
248 s = "gdFontTiny";
249 else if(f == gdFontSmall)
250 s = "gdFontSmall";
251 else if(f == gdFontMediumBold)
252 s = "gdFontMediumBold";
253 else if(f == gdFontLarge)
254 s = "gdFontLarge";
255 else if(f == gdFontGiant)
256 s = "gdFontGiant";
257 fprintf(DEBUGSTREAM, "%s\n", s);
258 }
259
260 static void debug_pcolor(const char *n, color_t *c)
261 {
262 debug_pname(n);
263 fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
264 }
265
266 void dump_config(void)
267 {
268 debug_pstring("cvsroot", conf.cvsroot);
269 debug_pstring("cvsmodule", conf.cvsmodule);
270 debug_pstring("date_format", conf.date_format);
271
272 debug_pcolor("color_bg", &conf.color_bg);
273 debug_pbool("box_shadow", conf.box_shadow);
274 debug_pbool("upside_down", conf.upside_down);
275 debug_pbool("left_right", conf.left_right);
276 debug_pbool("strip_untagged", conf.strip_untagged);
277 debug_pbool("strip_first_rev", conf.strip_first_rev);
278 debug_pbool("auto_stretch", conf.auto_stretch);
279 debug_pbool("anti_alias", conf.anti_alias);
280 debug_pbool("use_ttf", conf.use_ttf);
281 debug_pint("thick_lines", conf.thick_lines);
282
283 debug_pfont("tag_font", conf.tag_font.gdfont);
284 debug_pstring("tag_ttfont", conf.tag_font.ttfont);
285 debug_psouble("tag_ttsize", conf.tag_font.ttsize);
286 debug_pcolor("tag_color", &conf.tag_color);
287
288 debug_pfont("rev_font", conf.rev_font.gdfont);
289 debug_pstring("rev_ttfont", conf.rev_font.ttfont);
290 debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
291 debug_pcolor("rev_color", &conf.rev_color);
292 debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
293 debug_pint("rev_separator", conf.rev_separator);
294 debug_pint("rev_minline", conf.rev_minline);
295 debug_pint("rev_maxline", conf.rev_maxline);
296 debug_pint("rev_lspace", conf.rev_lspace);
297 debug_pint("rev_rspace", conf.rev_rspace);
298 debug_pint("rev_tspace", conf.rev_tspace);
299 debug_pint("rev_bspace", conf.rev_bspace);
300 debug_pstring("rev_text", conf.rev_text);
301 debug_pcolor("rev_text_color", &conf.rev_text_color);
302 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
303 debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
304 debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
305
306 debug_pfont("branch_font", conf.branch_font.gdfont);
307 debug_pstring("branch_ttfont", conf.branch_font.ttfont);
308 debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
309 debug_pcolor("branch_color", &conf.branch_color);
310 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
311 debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
312 debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
313 debug_pcolor("branch_tag_color", &conf.branch_tag_color);
314 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
315 debug_pint("branch_lspace", conf.branch_lspace);
316 debug_pint("branch_rspace", conf.branch_rspace);
317 debug_pint("branch_tspace", conf.branch_tspace);
318 debug_pint("branch_bspace", conf.branch_bspace);
319 debug_pint("branch_connect", conf.branch_connect);
320 debug_pint("branch_margin", conf.branch_margin);
321 debug_pint("branch_dupbox", conf.branch_dupbox);
322
323 debug_pstring("title", conf.title);
324 debug_pint("title_x", conf.title_x);
325 debug_pint("title_y", conf.title_y);
326 debug_pfont("title_font", conf.title_font.gdfont);
327 debug_pstring("title_ttfont", conf.title_font.ttfont);
328 debug_pdouble("title_ttsize", conf.title_font.ttsize);
329 debug_pint("title_align", conf.title_align);
330 debug_pcolor("title_color", &conf.title_color);
331
332 debug_pint("margin_top", conf.margin_top);
333 debug_pint("margin_bottom", conf.margin_bottom);
334 debug_pint("margin_left", conf.margin_left);
335 debug_pint("margin_right", conf.margin_right);
336
337 debug_pint("image_type", conf.image_type);
338 debug_pint("image_quality", conf.image_quality);
339
340 debug_pstring("map_name", conf.map_name);
341 debug_pstring("map_branch_href", conf.map_branch_href);
342 debug_pstring("map_branch_alt", conf.map_branch_alt);
343 debug_pstring("map_rev_href", conf.map_rev_href);
344 debug_pstring("map_rev_alt", conf.map_rev_alt);
345 debug_pstring("map_diff_href", conf.map_diff_href);
346 debug_pstring("map_diff_alt", conf.map_diff_alt);
347
348 debug_pstring("expand[0]", conf.expand[0]);
349 debug_pstring("expand[1]", conf.expand[1]);
350 debug_pstring("expand[2]", conf.expand[2]);
351 debug_pstring("expand[3]", conf.expand[3]);
352 debug_pstring("expand[4]", conf.expand[4]);
353 debug_pstring("expand[5]", conf.expand[5]);
354 debug_pstring("expand[6]", conf.expand[6]);
355 debug_pstring("expand[7]", conf.expand[7]);
356 debug_pstring("expand[8]", conf.expand[8]);
357 debug_pstring("expand[9]", conf.expand[9]);
358 }
359 #endif
360
361 /*
362 **************************************************************************
363 * String collection routines
364 **************************************************************************
365 */
366 #define STRALLOCSIZE 128
367 static char *str;
368 static int nstr;
369 static int nastr;
370
371 static void reset_str(void)
372 {
373 nstr = 0;
374 }
375
376 static void add_str(int c)
377 {
378 if(nstr + 1 + 1 > nastr)
379 {
380 str = xrealloc(str, nastr+STRALLOCSIZE);
381 nastr += STRALLOCSIZE;
382 }
383 str[nstr++] = c;
384 }
385
386 static char *get_str(void)
387 {
388 if(!str)
389 return xstrdup("");
390
391 str[nstr] = '\0';
392 return xstrdup(str);
393 }
394
395 /*
396 **************************************************************************
397 * Input routines
398 **************************************************************************
399 */
400 static char *buf = NULL;
401 static int bufsize = 0;
402 static int bufalloc = 0;
403 static int bufpos = 0;
404 static int bufunput = -1;
405 static FILE *buffp;
406
407 static void set_input(FILE *fp, char *s)
408 {
409 assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
410 buffp = fp;
411 bufsize = bufpos = 0;
412 if(s)
413 {
414 if(!buf)
415 {
416 bufalloc = 8192;
417 buf = xmalloc(bufalloc * sizeof(*buf));
418 }
419 bufsize = strlen(s);
420 assert(bufsize < bufalloc);
421 strcpy(buf, s);
422 }
423 }
424
425 static int get_input(void)
426 {
427 if(bufunput != -1)
428 {
429 int c = bufunput;
430 bufunput = -1;
431 return c;
432 }
433
434 if(bufpos < bufsize)
435 {
436 assert(buf != NULL);
437 retry_input:
438 return (int)((unsigned char)buf[bufpos++]);
439 }
440
441 if(!buf)
442 {
443 bufalloc = 8192;
444 buf = xmalloc(bufalloc * sizeof(*buf));
445 bufsize = bufpos = 0;
446 }
447 if(buffp)
448 {
449 bufsize = fread(buf, 1, bufalloc, buffp);
450 bufpos = 0;
451 if(!bufsize)
452 return EOF;
453 goto retry_input;
454 }
455 return EOF;
456 }
457
458 static void unget_input(int c)
459 {
460 bufunput = c;
461 }
462
463 /*
464 **************************************************************************
465 * Lexical scanner
466 **************************************************************************
467 */
468 static int config_lex(void)
469 {
470 int ch;
471 while(1)
472 {
473 ch = get_input();
474 if(ch == '\n')
475 line_number++;
476
477 if(isspace(ch))
478 continue;
479
480 switch(ch)
481 {
482 case EOF:
483 case '=':
484 case ';':
485 return ch;
486
487 case '#': /* Comment */
488 while((ch = get_input()) != '\n' && ch != EOF)
489 ;
490 if(ch != EOF)
491 unget_input(ch);
492 break;
493
494 case '"':
495 reset_str();
496 while(1)
497 {
498 char c[4];
499 ch = get_input();
500 switch(ch)
501 {
502 case '\\': /* Start an escape sequence */
503 switch(ch = get_input())
504 {
505 default: /* This includes '\\', '"' and embedded newlines */
506 add_str(ch);
507 break;
508 case 'a': add_str('\a'); break;
509 case 'b': add_str('\b'); break;
510 case 'f': add_str('\f'); break;
511 case 'n': add_str('\n'); break;
512 case 'r': add_str('\r'); break;
513 case 't': add_str('\t'); break;
514 case 'v': add_str('\v'); break;
515 case 'x':
516 case 'X': /* Hex escape */
517 c[0] = get_input();
518 c[1] = get_input();
519 c[2] = '\0';
520 if(!isxdigit(c[0]) || !isxdigit(c[1]))
521 yyerror("Invalid hex escape");
522 add_str((int)strtol(c, NULL, 16));
523 break;
524 case '0':
525 case '1':
526 case '2': /* Octal escape */
527 c[0] = ch;
528 c[1] = c[2] = c[3] = '\0';
529 if((ch = get_input()) >= '0' && ch <= '7')
530 c[1] = ch;
531 else
532 unget_input(ch);
533 if((ch = get_input()) >= '0' && ch <= '7')
534 c[2] = ch;
535 else
536 unget_input(ch);
537 add_str((int)strtol(c, NULL, 8));
538 break;
539 case EOF:
540 yyerror("Unexpected EOF in escape");
541 break;
542 }
543 break;
544 case '"':
545 yylval.str = get_str();
546 return TYPE_STRING;
547 case '\n':
548 yyerror("Newline in string");
549 break;
550 case EOF:
551 yyerror("Unexpected EOF in string");
552 break;
553 default:
554 add_str(ch);
555 break;
556 }
557 }
558 break;
559
560 default:
561 if(isalpha(ch) || ch == '_')
562 {
563 keyword_t skw;
564 keyword_t *kw;
565 /* Collect keyword */
566 reset_str();
567 add_str(ch);
568 while(1)
569 {
570 ch = get_input();
571 if(isalpha(ch) || ch == '_')
572 add_str(ch);
573 else
574 {
575 unget_input(ch);
576 break;
577 }
578 }
579 skw.keyword = get_str();
580 kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
581 if(!kw)
582 yyerror("Unknown keyword '%s'", skw.keyword);
583 xfree(skw.keyword);
584 if(kw->type == TYPE_VALUE)
585 {
586 yylval.i = kw->confref.val;
587 return TYPE_NUMBER;
588 }
589 yylval.kw = kw;
590 return TYPE_KEYWORD;
591 }
592 else if(isdigit(ch) || ch == '+' || ch == '-')
593 {
594 char *s;
595 char *eptr;
596 int type = TYPE_NUMBER;
597 /* Collect number */
598 reset_str();
599 add_str(ch);
600 while(1)
601 {
602 ch = get_input();
603 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
604 add_str(ch);
605 else
606 {
607 unget_input(ch);
608 break;
609 }
610 if(ch == '.')
611 type = TYPE_DOUBLE;
612 }
613 s = get_str();
614 if(type == TYPE_DOUBLE)
615 {
616 yylval.d = strtod(s, &eptr);
617 if(*eptr)
618 yyerror("Invalid floating point number");
619 }
620 else
621 {
622 yylval.i = strtol(s, &eptr, 0);
623 if(*eptr)
624 yyerror("Invalid number");
625 }
626 xfree(s);
627 return type;
628 }
629 else
630 yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
631 break;
632 }
633 }
634 }
635
636 static void set_color(color_t *c, char *s)
637 {
638 char *cptr;
639 if(*s != '#' || strlen(s) != 7)
640 {
641 colorerror:
642 yyerror("Invalid color value");
643 }
644 c->b = strtol(s+5, &cptr, 16);
645 if(*cptr)
646 goto colorerror;
647 s[5] = '\0';
648 c->g = strtol(s+3, &cptr, 16);
649 if(*cptr)
650 goto colorerror;
651 s[3] = '\0';
652 c->r = strtol(s+1, &cptr, 16);
653 if(*cptr)
654 goto colorerror;
655 }
656
657 static gdFontPtr get_font(int id)
658 {
659 switch(id)
660 {
661 case 0: return gdFontTiny;
662 case 1: return gdFontSmall;
663 default:
664 case 2: return gdFontMediumBold;
665 case 3: return gdFontLarge;
666 case 4: return gdFontGiant;
667 }
668 }
669
670 /*
671 **************************************************************************
672 * The config parser
673 * Grammar:
674 * file : <Empty>
675 * | lines
676 * ;
677 *
678 * lines : line
679 * | lines line
680 * ;
681 *
682 * line : <keyword> '=' <value> ';'
683 * | ';'
684 * ;
685 **************************************************************************
686 */
687 static void config_parse(void)
688 {
689 int state = 0;
690 int token;
691 int t;
692 keyword_t *kw = NULL;
693
694 while(1)
695 {
696 token = config_lex();
697 if(token == EOF)
698 {
699 if(state)
700 yyerror("Unexpected EOF");
701 break;
702 }
703
704 switch(state)
705 {
706 case 0:
707 if(token == TYPE_KEYWORD)
708 {
709 kw = yylval.kw;
710 state = 1;
711 }
712 else if(token != ';')
713 yyerror("Keyword expected");
714 break;
715 case 1:
716 if(token != '=')
717 yyerror("'=' expected");
718 state = 2;
719 break;
720 case 2:
721 if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
722 t = TYPE_NUMBER;
723 else if(kw->type == TYPE_COLOR)
724 t = TYPE_STRING;
725 else
726 t = kw->type;
727
728 if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
729 {
730 /* Auto promote numbers to doubles if required */
731 yylval.d = (double)yylval.i;
732 token = TYPE_DOUBLE;
733 }
734
735 if(token != t)
736 {
737 char *e;
738 switch(kw->type)
739 {
740 case TYPE_STRING: e = "String"; break;
741 case TYPE_NUMBER: e = "Number"; break;
742 case TYPE_COLOR: e = "Color"; break;
743 case TYPE_FONT: e = "Font"; break;
744 case TYPE_BOOLEAN: e = "Boolean"; break;
745 case TYPE_DOUBLE: e = "Double"; break;
746 default: e = "Internal error: Unknown type"; break;
747 }
748 yyerror("%s expected", e);
749 }
750 #ifdef DEBUG
751 printf("processing: '%s'\n", kw->keyword);
752 #endif
753 switch(kw->type)
754 {
755 case TYPE_STRING:
756 *kw->confref.s = yylval.str;
757 break;
758 case TYPE_NUMBER:
759 *kw->confref.i = yylval.i;
760 break;
761 case TYPE_BOOLEAN:
762 if(yylval.i == -1)
763 *kw->confref.i = !*kw->confref.i;
764 else
765 *kw->confref.i = yylval.i != 0;
766 break;
767 case TYPE_COLOR:
768 set_color(kw->confref.c, yylval.str);
769 break;
770 case TYPE_FONT:
771 kw->confref.f->gdfont = get_font(yylval.i);
772 break;
773 case TYPE_DOUBLE:
774 *kw->confref.d = yylval.d;
775 break;
776 default:
777 yyerror("Internal error: Unknown type passed %d", kw->type);
778 break;
779 }
780 state = 3;
781 break;
782 case 3:
783 if(token != ';')
784 yyerror("';' expected");
785 state = 0;
786 break;
787 default:
788 yyerror("Internal error: invalid state %d", state);
789 break;
790 }
791 }
792 }
793
794 /*
795 **************************************************************************
796 * Configuration
797 **************************************************************************
798 */
799 void stack_option(const char *opt)
800 {
801 stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
802 stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
803 strcpy(stacked_opts[nstacked_opts], opt);
804 strcat(stacked_opts[nstacked_opts], ";");
805 nstacked_opts++;
806 #ifdef DEBUG
807 printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
808 #endif
809 }
810
811 void read_config(const char *path)
812 {
813 FILE *fp;
814
815 /* Make sure we have them sorted for bsearch */
816 qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
817
818 if(path)
819 {
820 if((fp = fopen(path, "r")) != NULL)
821 input_file = path;
822 }
823 else
824 {
825 if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
826 {
827 if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
828 input_file = ETCDIR "/" CONFFILENAME;
829 }
830 else
831 input_file = "./" CONFFILENAME;
832 }
833
834 if(fp)
835 {
836 line_number = 1;
837 set_input(fp, NULL);
838 config_parse();
839 fclose(fp);
840 input_file = NULL;
841 }
842
843 if(nstacked_opts)
844 {
845 int i;
846 for(i = 0; i < nstacked_opts; i++)
847 {
848 line_number = 0;
849 set_input(NULL, stacked_opts[i]);
850 input_file = stacked_opts[i];
851 #ifdef DEBUG
852 printf("parsing stacked option: '%s'\n", stacked_opts[i]);
853 #endif
854 config_parse();
855 }
856 input_file = NULL;
857 }
858 #ifdef DEBUG
859 dump_config();
860 #endif
861 }

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