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

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Revision 1.19 - (show annotations)
Wed Oct 20 22:03:36 2004 UTC (13 years ago) by bertho
Branch: MAIN
Changes since 1.18: +2 -0 lines
File MIME type: text/plain
Added patch from Gordon Hollingworth <Gordon.Hollingworth {at} TTP.com> to use
mergepoints as implemented by CVSNT. Adapted the patch to enable both
tag-detected merges and mergepoints to be shows at the same time.
1 /*
2 * CvsGraph graphical representation generator of brances and revisions
3 * of a file in cvs/rcs.
4 *
5 * Copyright (C) 2001,2002 B. Stultiens
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 /*#define DEBUG 1*/
23
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <ctype.h>
28 #include <assert.h>
29
30 #include <gd.h>
31 #include <gdfontt.h>
32 #include <gdfonts.h>
33 #include <gdfontmb.h>
34 #include <gdfontl.h>
35 #include <gdfontg.h>
36
37 #include "utils.h"
38 #include "cvsgraph.h"
39 #include "readconf.h"
40
41 int line_number;
42
43 typedef struct
44 {
45 char *keyword;
46 int type;
47 union {
48 void *v; /* join of other values */
49 int *i;
50 font_t *f;
51 char **s;
52 color_t *c;
53 double *d;
54 INTTYPE val;
55 } confref;
56 } keyword_t;
57
58 typedef union {
59 keyword_t *kw;
60 int i;
61 double d;
62 char *str;
63 } YYSTYPE;
64
65 static YYSTYPE yylval;
66
67 static int nstacked_opts;
68 static char **stacked_opts;
69
70 enum {
71 TYPE_dummy = 256,
72 TYPE_KEYWORD,
73 TYPE_NUMBER,
74 TYPE_VALUE,
75 TYPE_BOOLEAN,
76 TYPE_COLOR,
77 TYPE_FONT,
78 TYPE_STRING,
79 TYPE_DOUBLE
80 };
81
82 static keyword_t keywords[] = {
83 { "branch_bgcolor", TYPE_COLOR, { &conf.branch_bgcolor } },
84 { "branch_bspace", TYPE_NUMBER, { &conf.branch_bspace } },
85 { "branch_color", TYPE_COLOR, { &conf.branch_color } },
86 { "branch_font", TYPE_FONT, { &conf.branch_font.gdfont } },
87 { "branch_ttfont", TYPE_STRING, { &conf.branch_font.ttfont } },
88 { "branch_ttsize", TYPE_DOUBLE, { &conf.branch_font.ttsize } },
89 { "branch_tag_color", TYPE_COLOR, { &conf.branch_tag_color } },
90 { "branch_tag_font", TYPE_FONT, { &conf.branch_tag_font.gdfont } },
91 { "branch_tag_ttfont", TYPE_STRING, { &conf.branch_tag_font.ttfont } },
92 { "branch_tag_ttsize", TYPE_DOUBLE, { &conf.branch_tag_font.ttsize } },
93 { "branch_lspace", TYPE_NUMBER, { &conf.branch_lspace } },
94 { "branch_rspace", TYPE_NUMBER, { &conf.branch_rspace } },
95 { "branch_tspace", TYPE_NUMBER, { &conf.branch_tspace } },
96 { "branch_connect", TYPE_NUMBER, { &conf.branch_connect } },
97 { "branch_margin", TYPE_NUMBER, { &conf.branch_margin } },
98 { "branch_dupbox", TYPE_BOOLEAN, { &conf.branch_dupbox } },
99 { "branch_fold", TYPE_BOOLEAN, { &conf.branch_fold } },
100 { "branch_foldall", TYPE_BOOLEAN, { &conf.branch_foldall } },
101 { "branch_resort", TYPE_BOOLEAN, { &conf.branch_resort } },
102 { "branch_subtree", TYPE_STRING, { &conf.branch_subtree } },
103 { "upside_down", TYPE_BOOLEAN, { &conf.upside_down } },
104 { "left_right", TYPE_BOOLEAN, { &conf.left_right } },
105 { "auto_stretch", TYPE_BOOLEAN, { &conf.auto_stretch } },
106 { "color_bg", TYPE_COLOR, { &conf.color_bg } },
107 { "transparent_bg", TYPE_BOOLEAN, { &conf.transparent_bg } },
108 { "cvsmodule", TYPE_STRING, { &conf.cvsmodule } },
109 { "cvsroot", TYPE_STRING, { &conf.cvsroot } },
110 { "date_format", TYPE_STRING, { &conf.date_format } },
111 { "box_shadow", TYPE_BOOLEAN, { &conf.box_shadow } },
112 { "strip_untagged", TYPE_BOOLEAN, { &conf.strip_untagged } },
113 { "strip_first_rev", TYPE_BOOLEAN, { &conf.strip_first_rev } },
114 { "anti_alias", TYPE_BOOLEAN, { &conf.anti_alias } },
115 { "use_ttf", TYPE_BOOLEAN, { &conf.use_ttf } },
116 { "parse_logs", TYPE_BOOLEAN, { &conf.parse_logs } },
117 { "html_level", TYPE_NUMBER, { &conf.html_level } },
118 { "thick_lines", TYPE_NUMBER, { &conf.thick_lines } },
119 { "msg_color", TYPE_COLOR, { &conf.msg_color } },
120 { "msg_font", TYPE_FONT, { &conf.msg_font.gdfont } },
121 { "msg_ttfont", TYPE_STRING, { &conf.msg_font.ttfont } },
122 { "msg_ttsize", TYPE_DOUBLE, { &conf.msg_font.ttsize } },
123 { "rev_hidenumber", TYPE_BOOLEAN, { &conf.rev_hidenumber } },
124 { "rev_color", TYPE_COLOR, { &conf.rev_color } },
125 { "rev_bgcolor", TYPE_COLOR, { &conf.rev_bgcolor } },
126 { "rev_font", TYPE_FONT, { &conf.rev_font.gdfont } },
127 { "rev_ttfont", TYPE_STRING, { &conf.rev_font.ttfont } },
128 { "rev_ttsize", TYPE_DOUBLE, { &conf.rev_font.ttsize } },
129 { "rev_separator", TYPE_NUMBER, { &conf.rev_separator } },
130 { "rev_minline", TYPE_NUMBER, { &conf.rev_minline } },
131 { "rev_maxline", TYPE_NUMBER, { &conf.rev_maxline } },
132 { "rev_lspace", TYPE_NUMBER, { &conf.rev_lspace } },
133 { "rev_rspace", TYPE_NUMBER, { &conf.rev_rspace } },
134 { "rev_tspace", TYPE_NUMBER, { &conf.rev_tspace } },
135 { "rev_bspace", TYPE_NUMBER, { &conf.rev_bspace } },
136 { "rev_text", TYPE_STRING, { &conf.rev_text } },
137 { "rev_text_color", TYPE_COLOR, { &conf.rev_text_color } },
138 { "rev_text_font", TYPE_FONT, { &conf.rev_text_font.gdfont } },
139 { "rev_text_ttfont", TYPE_STRING, { &conf.rev_text_font.ttfont } },
140 { "rev_text_ttsize", TYPE_DOUBLE, { &conf.rev_text_font.ttsize } },
141 { "rev_maxtags", TYPE_NUMBER, { &conf.rev_maxtags } },
142 { "merge_color", TYPE_COLOR, { &conf.merge_color } },
143 { "merge_from", TYPE_STRING, { &conf.merge_from } },
144 { "merge_to", TYPE_STRING, { &conf.merge_to } },
145 { "merge_findall", TYPE_BOOLEAN, { &conf.merge_findall } },
146 { "merge_front", TYPE_BOOLEAN, { &conf.merge_front } },
147 { "merge_nocase", TYPE_BOOLEAN, { &conf.merge_nocase } },
148 { "merge_arrows", TYPE_BOOLEAN, { &conf.merge_arrows } },
149 { "merge_cvsnt", TYPE_BOOLEAN, { &conf.merge_cvsnt } },
150 { "merge_cvsnt_color", TYPE_COLOR, { &conf.merge_cvsnt_color } },
151 { "arrow_width", TYPE_NUMBER, { &conf.arrow_width } },
152 { "arrow_length", TYPE_NUMBER, { &conf.arrow_length } },
153 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
154 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
155 { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
156 { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
157 { "tag_ignore", TYPE_STRING, { &conf.tag_ignore } },
158 { "tag_ignore_merge", TYPE_BOOLEAN, { &conf.tag_ignore_merge } },
159 { "tag_nocase", TYPE_BOOLEAN, { &conf.tag_nocase } },
160 { "tag_negate", TYPE_BOOLEAN, { &conf.tag_negate } },
161 { "title", TYPE_STRING, { &conf.title } },
162 { "title_x", TYPE_NUMBER, { &conf.title_x } },
163 { "title_y", TYPE_NUMBER, { &conf.title_y } },
164 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
165 { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
166 { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
167 { "title_align", TYPE_NUMBER, { &conf.title_align } },
168 { "title_color", TYPE_COLOR, { &conf.title_color } },
169 { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
170 { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
171 { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
172 { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
173 { "image_type", TYPE_NUMBER, { &conf.image_type } },
174 { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
175 { "map_name", TYPE_STRING, { &conf.map_name } },
176 { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
177 { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
178 { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
179 { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
180 { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
181 { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
182 { "map_merge_href", TYPE_STRING, { &conf.map_merge_href } },
183 { "map_merge_alt", TYPE_STRING, { &conf.map_merge_alt } },
184 { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
185 { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
186 { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
187 { "true", TYPE_VALUE, { (void *)1 } },
188 { "false", TYPE_VALUE, { (void *)0 } },
189 { "not", TYPE_VALUE, { (void *)-1 } },
190 { "left", TYPE_VALUE, { (void *)0 } },
191 { "center", TYPE_VALUE, { (void *)1 } },
192 { "right", TYPE_VALUE, { (void *)2 } },
193 { "tiny", TYPE_VALUE, { (void *)0 } },
194 { "small", TYPE_VALUE, { (void *)1 } },
195 { "medium", TYPE_VALUE, { (void *)2 } },
196 { "large", TYPE_VALUE, { (void *)3 } },
197 { "giant", TYPE_VALUE, { (void *)4 } },
198 { "HTML3", TYPE_VALUE, { (void *)1 } },
199 { "HTML4", TYPE_VALUE, { (void *)2 } },
200 { "XHTML", TYPE_VALUE, { (void *)3 } },
201 };
202
203 #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
204
205 static int cmp_kw(const void *k1, const void *k2)
206 {
207 return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
208 }
209
210 /*
211 **************************************************************************
212 * Debug routines
213 **************************************************************************
214 */
215 #ifdef DEBUG
216 #define DEBUGSTREAM stdout
217 static void debug_pname(const char *n)
218 {
219 fprintf(DEBUGSTREAM, "%-16s: ", n);
220 }
221
222 static void debug_pstring(const char *n, const char *a)
223 {
224 debug_pname(n);
225 if(!a)
226 fprintf(DEBUGSTREAM, "<not-set>\n");
227 else
228 {
229 fputc('\'', DEBUGSTREAM);
230 for(; *a; a++)
231 {
232 if(isprint(*a))
233 fputc(*a, DEBUGSTREAM);
234 else
235 {
236 fputc('\\', DEBUGSTREAM);
237 switch(*a)
238 {
239 case '\a': fputc('a', DEBUGSTREAM); break;
240 case '\b': fputc('b', DEBUGSTREAM); break;
241 case '\f': fputc('f', DEBUGSTREAM); break;
242 case '\n': fputc('n', DEBUGSTREAM); break;
243 case '\r': fputc('r', DEBUGSTREAM); break;
244 case '\t': fputc('t', DEBUGSTREAM); break;
245 case '\v': fputc('v', DEBUGSTREAM); break;
246 default:
247 fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
248 }
249 }
250 }
251 fprintf(DEBUGSTREAM, "'\n");
252 }
253 }
254
255 static void debug_pbool(const char *n, int b)
256 {
257 debug_pname(n);
258 fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
259 }
260
261 static void debug_pint(const char *n, int i)
262 {
263 debug_pname(n);
264 fprintf(DEBUGSTREAM, "%i\n", i);
265 }
266
267 static void debug_pdouble(const char *n, double d)
268 {
269 debug_pname(n);
270 fprintf(DEBUGSTREAM, "%g\n", d);
271 }
272
273 static void debug_pfont(const char *n, gdFontPtr f)
274 {
275 const char *s = "<Unknown font>";
276 debug_pname(n);
277 if(f == gdFontTiny)
278 s = "gdFontTiny";
279 else if(f == gdFontSmall)
280 s = "gdFontSmall";
281 else if(f == gdFontMediumBold)
282 s = "gdFontMediumBold";
283 else if(f == gdFontLarge)
284 s = "gdFontLarge";
285 else if(f == gdFontGiant)
286 s = "gdFontGiant";
287 fprintf(DEBUGSTREAM, "%s\n", s);
288 }
289
290 static void debug_pcolor(const char *n, color_t *c)
291 {
292 debug_pname(n);
293 fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
294 }
295
296 void dump_config(void)
297 {
298 debug_pstring("cvsroot", conf.cvsroot);
299 debug_pstring("cvsmodule", conf.cvsmodule);
300 debug_pstring("date_format", conf.date_format);
301
302 debug_pcolor("color_bg", &conf.color_bg);
303 debug_pbool("box_shadow", conf.box_shadow);
304 debug_pbool("upside_down", conf.upside_down);
305 debug_pbool("left_right", conf.left_right);
306 debug_pbool("strip_untagged", conf.strip_untagged);
307 debug_pbool("strip_first_rev", conf.strip_first_rev);
308 debug_pbool("auto_stretch", conf.auto_stretch);
309 debug_pbool("anti_alias", conf.anti_alias);
310 debug_pbool("use_ttf", conf.use_ttf);
311 debug_pint("thick_lines", conf.thick_lines);
312
313 debug_pfont("tag_font", conf.tag_font.gdfont);
314 debug_pstring("tag_ttfont", conf.tag_font.ttfont);
315 debug_psouble("tag_ttsize", conf.tag_font.ttsize);
316 debug_pcolor("tag_color", &conf.tag_color);
317
318 debug_pfont("rev_font", conf.rev_font.gdfont);
319 debug_pstring("rev_ttfont", conf.rev_font.ttfont);
320 debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
321 debug_pcolor("rev_color", &conf.rev_color);
322 debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
323 debug_pint("rev_separator", conf.rev_separator);
324 debug_pint("rev_minline", conf.rev_minline);
325 debug_pint("rev_maxline", conf.rev_maxline);
326 debug_pint("rev_lspace", conf.rev_lspace);
327 debug_pint("rev_rspace", conf.rev_rspace);
328 debug_pint("rev_tspace", conf.rev_tspace);
329 debug_pint("rev_bspace", conf.rev_bspace);
330 debug_pstring("rev_text", conf.rev_text);
331 debug_pcolor("rev_text_color", &conf.rev_text_color);
332 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
333 debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
334 debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
335
336 debug_pfont("branch_font", conf.branch_font.gdfont);
337 debug_pstring("branch_ttfont", conf.branch_font.ttfont);
338 debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
339 debug_pcolor("branch_color", &conf.branch_color);
340 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
341 debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
342 debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
343 debug_pcolor("branch_tag_color", &conf.branch_tag_color);
344 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
345 debug_pint("branch_lspace", conf.branch_lspace);
346 debug_pint("branch_rspace", conf.branch_rspace);
347 debug_pint("branch_tspace", conf.branch_tspace);
348 debug_pint("branch_bspace", conf.branch_bspace);
349 debug_pint("branch_connect", conf.branch_connect);
350 debug_pint("branch_margin", conf.branch_margin);
351 debug_pint("branch_dupbox", conf.branch_dupbox);
352
353 debug_pstring("title", conf.title);
354 debug_pint("title_x", conf.title_x);
355 debug_pint("title_y", conf.title_y);
356 debug_pfont("title_font", conf.title_font.gdfont);
357 debug_pstring("title_ttfont", conf.title_font.ttfont);
358 debug_pdouble("title_ttsize", conf.title_font.ttsize);
359 debug_pint("title_align", conf.title_align);
360 debug_pcolor("title_color", &conf.title_color);
361
362 debug_pint("margin_top", conf.margin_top);
363 debug_pint("margin_bottom", conf.margin_bottom);
364 debug_pint("margin_left", conf.margin_left);
365 debug_pint("margin_right", conf.margin_right);
366
367 debug_pint("image_type", conf.image_type);
368 debug_pint("image_quality", conf.image_quality);
369
370 debug_pstring("map_name", conf.map_name);
371 debug_pstring("map_branch_href", conf.map_branch_href);
372 debug_pstring("map_branch_alt", conf.map_branch_alt);
373 debug_pstring("map_rev_href", conf.map_rev_href);
374 debug_pstring("map_rev_alt", conf.map_rev_alt);
375 debug_pstring("map_diff_href", conf.map_diff_href);
376 debug_pstring("map_diff_alt", conf.map_diff_alt);
377
378 debug_pstring("expand[0]", conf.expand[0]);
379 debug_pstring("expand[1]", conf.expand[1]);
380 debug_pstring("expand[2]", conf.expand[2]);
381 debug_pstring("expand[3]", conf.expand[3]);
382 debug_pstring("expand[4]", conf.expand[4]);
383 debug_pstring("expand[5]", conf.expand[5]);
384 debug_pstring("expand[6]", conf.expand[6]);
385 debug_pstring("expand[7]", conf.expand[7]);
386 debug_pstring("expand[8]", conf.expand[8]);
387 debug_pstring("expand[9]", conf.expand[9]);
388 }
389 #endif
390
391 /*
392 **************************************************************************
393 * String collection routines
394 **************************************************************************
395 */
396 #define STRALLOCSIZE 128
397 static char *str;
398 static int nstr;
399 static int nastr;
400
401 static void reset_str(void)
402 {
403 nstr = 0;
404 }
405
406 static void add_str(int c)
407 {
408 if(nstr + 1 + 1 > nastr)
409 {
410 str = xrealloc(str, nastr+STRALLOCSIZE);
411 nastr += STRALLOCSIZE;
412 }
413 str[nstr++] = c;
414 }
415
416 static char *get_str(void)
417 {
418 if(!str)
419 return xstrdup("");
420
421 str[nstr] = '\0';
422 return xstrdup(str);
423 }
424
425 /*
426 **************************************************************************
427 * Input routines
428 **************************************************************************
429 */
430 static char *buf = NULL;
431 static int bufsize = 0;
432 static int bufalloc = 0;
433 static int bufpos = 0;
434 static int bufunput = -1;
435 static FILE *buffp;
436
437 static void set_input(FILE *fp, char *s)
438 {
439 assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
440 buffp = fp;
441 bufsize = bufpos = 0;
442 if(s)
443 {
444 if(!buf)
445 {
446 bufalloc = 8192;
447 buf = xmalloc(bufalloc * sizeof(*buf));
448 }
449 bufsize = strlen(s);
450 assert(bufsize < bufalloc);
451 strcpy(buf, s);
452 }
453 }
454
455 static int get_input(void)
456 {
457 if(bufunput != -1)
458 {
459 int c = bufunput;
460 bufunput = -1;
461 return c;
462 }
463
464 if(bufpos < bufsize)
465 {
466 assert(buf != NULL);
467 retry_input:
468 return (int)((unsigned char)buf[bufpos++]);
469 }
470
471 if(!buf)
472 {
473 bufalloc = 8192;
474 buf = xmalloc(bufalloc * sizeof(*buf));
475 bufsize = bufpos = 0;
476 }
477 if(buffp)
478 {
479 bufsize = fread(buf, 1, bufalloc, buffp);
480 bufpos = 0;
481 if(!bufsize)
482 return EOF;
483 goto retry_input;
484 }
485 return EOF;
486 }
487
488 static void unget_input(int c)
489 {
490 bufunput = c;
491 }
492
493 /*
494 **************************************************************************
495 * Lexical scanner
496 **************************************************************************
497 */
498 static int config_lex(void)
499 {
500 int ch;
501 while(1)
502 {
503 ch = get_input();
504 if(ch == '\n')
505 line_number++;
506
507 if(isspace(ch))
508 continue;
509
510 switch(ch)
511 {
512 case EOF:
513 case '=':
514 case ';':
515 return ch;
516
517 case '#': /* Comment */
518 while((ch = get_input()) != '\n' && ch != EOF)
519 ;
520 if(ch != EOF)
521 unget_input(ch);
522 break;
523
524 case '"':
525 reset_str();
526 while(1)
527 {
528 char c[4];
529 ch = get_input();
530 switch(ch)
531 {
532 case '\\': /* Start an escape sequence */
533 switch(ch = get_input())
534 {
535 default: /* This includes '\\', '"' and embedded newlines */
536 add_str(ch);
537 break;
538 case 'a': add_str('\a'); break;
539 case 'b': add_str('\b'); break;
540 case 'f': add_str('\f'); break;
541 case 'n': add_str('\n'); break;
542 case 'r': add_str('\r'); break;
543 case 't': add_str('\t'); break;
544 case 'v': add_str('\v'); break;
545 case 'x':
546 case 'X': /* Hex escape */
547 c[0] = get_input();
548 c[1] = get_input();
549 c[2] = '\0';
550 if(!isxdigit((int)(unsigned char)c[0]) || !isxdigit((int)(unsigned char)c[1]))
551 stack_msg(MSG_ERR, "config: %d: Invalid hex escape", line_number);
552 add_str((int)strtol(c, NULL, 16));
553 break;
554 case '0':
555 case '1':
556 case '2': /* Octal escape */
557 c[0] = ch;
558 c[1] = c[2] = c[3] = '\0';
559 if((ch = get_input()) >= '0' && ch <= '7')
560 c[1] = ch;
561 else
562 unget_input(ch);
563 if((ch = get_input()) >= '0' && ch <= '7')
564 c[2] = ch;
565 else
566 unget_input(ch);
567 add_str((int)strtol(c, NULL, 8));
568 break;
569 case EOF:
570 yyerror("Unexpected EOF in escape");
571 break;
572 }
573 break;
574 case '"':
575 yylval.str = get_str();
576 return TYPE_STRING;
577 case '\n':
578 yyerror("Newline in string");
579 break;
580 case EOF:
581 yyerror("Unexpected EOF in string");
582 break;
583 default:
584 add_str(ch);
585 break;
586 }
587 }
588 break;
589
590 default:
591 if(isalpha(ch) || ch == '_')
592 {
593 keyword_t skw;
594 keyword_t *kw;
595 /* Collect keyword */
596 reset_str();
597 add_str(ch);
598 while(1)
599 {
600 ch = get_input();
601 if(isalnum(ch) || ch == '_')
602 add_str(ch);
603 else
604 {
605 unget_input(ch);
606 break;
607 }
608 }
609 skw.keyword = get_str();
610 kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
611 if(!kw)
612 {
613 stack_msg(MSG_ERR, "config: %d: Unknown keyword '%s'", line_number, skw.keyword);
614 yylval.kw = NULL;
615 return TYPE_KEYWORD;
616 }
617 xfree(skw.keyword);
618 if(kw->type == TYPE_VALUE)
619 {
620 yylval.i = (int)kw->confref.val;
621 return TYPE_NUMBER;
622 }
623 yylval.kw = kw;
624 return TYPE_KEYWORD;
625 }
626 else if(isdigit(ch) || ch == '+' || ch == '-')
627 {
628 char *s;
629 char *eptr;
630 int type = TYPE_NUMBER;
631 /* Collect number */
632 reset_str();
633 add_str(ch);
634 while(1)
635 {
636 ch = get_input();
637 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
638 add_str(ch);
639 else
640 {
641 unget_input(ch);
642 break;
643 }
644 if(ch == '.')
645 type = TYPE_DOUBLE;
646 }
647 s = get_str();
648 if(type == TYPE_DOUBLE)
649 {
650 yylval.d = strtod(s, &eptr);
651 if(*eptr)
652 stack_msg(MSG_ERR, "config: %d: Invalid floating point number", line_number);
653 }
654 else
655 {
656 yylval.i = strtol(s, &eptr, 0);
657 if(*eptr)
658 stack_msg(MSG_ERR, "config: %d: Invalid number", line_number);
659 }
660 xfree(s);
661 return type;
662 }
663 else
664 yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
665 break;
666 }
667 }
668 }
669
670 static void set_color(color_t *c, char *s)
671 {
672 char *cptr;
673 if(*s != '#' || strlen(s) != 7)
674 {
675 colorerror:
676 stack_msg(MSG_ERR, "config: %d: Invalid color value '%s'", line_number, s);
677 return;
678 }
679 c->b = strtol(s+5, &cptr, 16);
680 if(*cptr)
681 goto colorerror;
682 s[5] = '\0';
683 c->g = strtol(s+3, &cptr, 16);
684 if(*cptr)
685 goto colorerror;
686 s[3] = '\0';
687 c->r = strtol(s+1, &cptr, 16);
688 if(*cptr)
689 goto colorerror;
690 }
691
692 static gdFontPtr get_font(int id)
693 {
694 switch(id)
695 {
696 case 0: return gdFontTiny;
697 case 1: return gdFontSmall;
698 default:
699 case 2: return gdFontMediumBold;
700 case 3: return gdFontLarge;
701 case 4: return gdFontGiant;
702 }
703 }
704
705 /*
706 **************************************************************************
707 * The config parser
708 * Grammar:
709 * file : <Empty>
710 * | lines
711 * ;
712 *
713 * lines : line
714 * | lines line
715 * ;
716 *
717 * line : <keyword> '=' <value> ';'
718 * | ';'
719 * ;
720 **************************************************************************
721 */
722 static void config_parse(void)
723 {
724 int state = 0;
725 int token;
726 int t;
727 keyword_t *kw = NULL;
728
729 while(1)
730 {
731 token = config_lex();
732 if(token == EOF)
733 {
734 if(state)
735 stack_msg(MSG_ERR, "config: %d: Unexpected EOF", line_number);
736 break;
737 }
738
739 switch(state)
740 {
741 case 0:
742 if(token == TYPE_KEYWORD)
743 {
744 kw = yylval.kw;
745 state = 1;
746 }
747 else if(token != ';')
748 stack_msg(MSG_ERR, "config: %d: Keyword expected", line_number);
749 break;
750 case 1:
751 if(token != '=')
752 {
753 stack_msg(MSG_ERR, "config: %d: '=' expected", line_number);
754 while(1)
755 {
756 token = config_lex();
757 if(token == ';')
758 {
759 state = 0;
760 break;
761 }
762 else if(token == EOF)
763 break;
764 }
765 }
766 else
767 state = 2;
768 break;
769 case 2:
770 if(!kw)
771 {
772 /* Error recovery of failed keyword */
773 state = 3;
774 break;
775 }
776 if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
777 t = TYPE_NUMBER;
778 else if(kw->type == TYPE_COLOR)
779 t = TYPE_STRING;
780 else
781 t = kw->type;
782
783 if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
784 {
785 /* Auto promote numbers to doubles if required */
786 yylval.d = (double)yylval.i;
787 token = TYPE_DOUBLE;
788 }
789
790 if(token != t)
791 {
792 char *e;
793 switch(kw->type)
794 {
795 case TYPE_STRING: e = "String"; yylval.str = xstrdup("error recovery"); break;
796 case TYPE_NUMBER: e = "Number"; yylval.i = 0; break;
797 case TYPE_COLOR: e = "Color"; yylval.str = xstrdup("#123456"); break;
798 case TYPE_FONT: e = "Font"; yylval.i = 0; break;
799 case TYPE_BOOLEAN: e = "Boolean"; yylval.i = 0; break;
800 case TYPE_DOUBLE: e = "Double"; yylval.d = 0.0; break;
801 default: e = "Internal error: Unknown type"; yylval.i = 0; break;
802 }
803 stack_msg(MSG_ERR, "config: %d: %s expected", line_number, e);
804 }
805 #ifdef DEBUG
806 printf("processing: '%s'\n", kw->keyword);
807 #endif
808 switch(kw->type)
809 {
810 case TYPE_STRING:
811 *kw->confref.s = yylval.str;
812 break;
813 case TYPE_NUMBER:
814 *kw->confref.i = yylval.i;
815 break;
816 case TYPE_BOOLEAN:
817 if(yylval.i == -1)
818 *kw->confref.i = !*kw->confref.i;
819 else
820 *kw->confref.i = yylval.i != 0;
821 break;
822 case TYPE_COLOR:
823 set_color(kw->confref.c, yylval.str);
824 break;
825 case TYPE_FONT:
826 kw->confref.f->gdfont = get_font(yylval.i);
827 break;
828 case TYPE_DOUBLE:
829 *kw->confref.d = yylval.d;
830 break;
831 default:
832 yyerror("Internal error: Unknown type passed %d", kw->type);
833 break;
834 }
835 state = 3;
836 break;
837 case 3:
838 if(token != ';')
839 stack_msg(MSG_ERR, "config: %d: ';' expected", line_number);
840 state = 0;
841 break;
842 default:
843 yyerror("Internal error: invalid state %d", state);
844 break;
845 }
846 }
847 }
848
849 /*
850 **************************************************************************
851 * Configuration
852 **************************************************************************
853 */
854 void stack_option(const char *opt)
855 {
856 stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
857 stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
858 strcpy(stacked_opts[nstacked_opts], opt);
859 strcat(stacked_opts[nstacked_opts], ";");
860 nstacked_opts++;
861 #ifdef DEBUG
862 printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
863 #endif
864 }
865
866 void read_config(const char *path)
867 {
868 FILE *fp;
869
870 /* Make sure we have them sorted for bsearch */
871 qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
872
873 if(path)
874 {
875 if((fp = fopen(path, "r")) != NULL)
876 input_file = path;
877 }
878 else
879 {
880 if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
881 {
882 if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
883 input_file = ETCDIR "/" CONFFILENAME;
884 }
885 else
886 input_file = "./" CONFFILENAME;
887 }
888
889 if(fp)
890 {
891 line_number = 1;
892 set_input(fp, NULL);
893 config_parse();
894 fclose(fp);
895 input_file = NULL;
896 }
897
898 if(nstacked_opts)
899 {
900 int i;
901 for(i = 0; i < nstacked_opts; i++)
902 {
903 line_number = 0;
904 set_input(NULL, stacked_opts[i]);
905 input_file = stacked_opts[i];
906 #ifdef DEBUG
907 printf("parsing stacked option: '%s'\n", stacked_opts[i]);
908 #endif
909 config_parse();
910 }
911 input_file = NULL;
912 }
913 #ifdef DEBUG
914 dump_config();
915 #endif
916 }

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