/[CvsGraph]/cvsgraph/readconf.c
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Revision 1.4 - (hide annotations)
Tue Apr 23 23:02:54 2002 UTC (15 years, 7 months ago) by bertho
Branch: MAIN
Changes since 1.3: +1 -0 lines
File MIME type: text/plain
- Fix browserbug ordering y-coordinates
- Speed up parsing by bypassing deltatext parse
- Add logentry expansion
1 bertho 1.1 /*
2     * CvsGraph graphical representation generator of brances and revisions
3     * of a file in cvs/rcs.
4     *
5 bertho 1.3 * Copyright (C) 2001,2002 B. Stultiens
6 bertho 1.1 *
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 bertho 1.2 double *d;
54 bertho 1.1 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 bertho 1.2 double d;
62 bertho 1.1 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 bertho 1.2 TYPE_STRING,
79     TYPE_DOUBLE
80 bertho 1.1 };
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 bertho 1.2 { "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 bertho 1.1 { "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 bertho 1.2 { "auto_stretch", TYPE_BOOLEAN, { &conf.auto_stretch } },
101 bertho 1.1 { "color_bg", TYPE_COLOR, { &conf.color_bg } },
102 bertho 1.2 { "transparent_bg", TYPE_BOOLEAN, { &conf.transparent_bg } },
103 bertho 1.1 { "cvsmodule", TYPE_STRING, { &conf.cvsmodule } },
104     { "cvsroot", TYPE_STRING, { &conf.cvsroot } },
105     { "date_format", TYPE_STRING, { &conf.date_format } },
106     { "box_shadow", TYPE_BOOLEAN, { &conf.box_shadow } },
107     { "strip_untagged", TYPE_BOOLEAN, { &conf.strip_untagged } },
108     { "strip_first_rev", TYPE_BOOLEAN, { &conf.strip_first_rev } },
109 bertho 1.2 { "anti_alias", TYPE_BOOLEAN, { &conf.anti_alias } },
110     { "use_ttf", TYPE_BOOLEAN, { &conf.use_ttf } },
111 bertho 1.4 { "parse_logs", TYPE_BOOLEAN, { &conf.parse_logs } },
112 bertho 1.3 { "thick_lines", TYPE_NUMBER, { &conf.thick_lines } },
113 bertho 1.1 { "rev_color", TYPE_COLOR, { &conf.rev_color } },
114     { "rev_bgcolor", TYPE_COLOR, { &conf.rev_bgcolor } },
115 bertho 1.2 { "rev_font", TYPE_FONT, { &conf.rev_font.gdfont } },
116     { "rev_ttfont", TYPE_STRING, { &conf.rev_font.ttfont } },
117     { "rev_ttsize", TYPE_DOUBLE, { &conf.rev_font.ttsize } },
118 bertho 1.1 { "rev_separator", TYPE_NUMBER, { &conf.rev_separator } },
119     { "rev_minline", TYPE_NUMBER, { &conf.rev_minline } },
120     { "rev_maxline", TYPE_NUMBER, { &conf.rev_maxline } },
121     { "rev_lspace", TYPE_NUMBER, { &conf.rev_lspace } },
122     { "rev_rspace", TYPE_NUMBER, { &conf.rev_rspace } },
123     { "rev_tspace", TYPE_NUMBER, { &conf.rev_tspace } },
124     { "rev_bspace", TYPE_NUMBER, { &conf.rev_bspace } },
125     { "rev_text", TYPE_STRING, { &conf.rev_text } },
126     { "rev_text_color", TYPE_COLOR, { &conf.rev_text_color } },
127 bertho 1.2 { "rev_text_font", TYPE_FONT, { &conf.rev_text_font.gdfont } },
128     { "rev_text_ttfont", TYPE_STRING, { &conf.rev_text_font.ttfont } },
129     { "rev_text_ttsize", TYPE_DOUBLE, { &conf.rev_text_font.ttsize } },
130 bertho 1.1 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
131 bertho 1.2 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
132     { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
133     { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
134 bertho 1.1 { "title", TYPE_STRING, { &conf.title } },
135     { "title_x", TYPE_NUMBER, { &conf.title_x } },
136     { "title_y", TYPE_NUMBER, { &conf.title_y } },
137 bertho 1.2 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
138     { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
139     { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
140 bertho 1.1 { "title_align", TYPE_NUMBER, { &conf.title_align } },
141     { "title_color", TYPE_COLOR, { &conf.title_color } },
142     { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
143     { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
144     { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
145     { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
146     { "image_type", TYPE_NUMBER, { &conf.image_type } },
147     { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
148     { "map_name", TYPE_STRING, { &conf.map_name } },
149     { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
150     { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
151     { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
152     { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
153     { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
154     { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
155     { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
156     { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
157     { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
158     { "true", TYPE_VALUE, { (void *)1 } },
159     { "false", TYPE_VALUE, { (void *)0 } },
160 bertho 1.3 { "not", TYPE_VALUE, { (void *)-1 } },
161 bertho 1.1 { "left", TYPE_VALUE, { (void *)0 } },
162     { "center", TYPE_VALUE, { (void *)1 } },
163     { "right", TYPE_VALUE, { (void *)2 } },
164     { "tiny", TYPE_VALUE, { (void *)0 } },
165     { "small", TYPE_VALUE, { (void *)1 } },
166     { "medium", TYPE_VALUE, { (void *)2 } },
167     { "large", TYPE_VALUE, { (void *)3 } },
168     { "giant", TYPE_VALUE, { (void *)4 } },
169     };
170    
171     #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
172    
173     static int cmp_kw(const void *k1, const void *k2)
174     {
175     return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
176     }
177    
178     /*
179     **************************************************************************
180     * Debug routines
181     **************************************************************************
182     */
183     #ifdef DEBUG
184     #define DEBUGSTREAM stdout
185     static void debug_pname(const char *n)
186     {
187     fprintf(DEBUGSTREAM, "%-16s: ", n);
188     }
189    
190     static void debug_pstring(const char *n, const char *a)
191     {
192     debug_pname(n);
193     if(!a)
194     fprintf(DEBUGSTREAM, "<not-set>\n");
195     else
196     {
197     fputc('\'', DEBUGSTREAM);
198     for(; *a; a++)
199     {
200     if(isprint(*a))
201     fputc(*a, DEBUGSTREAM);
202     else
203     {
204     fputc('\\', DEBUGSTREAM);
205     switch(*a)
206     {
207     case '\a': fputc('a', DEBUGSTREAM); break;
208     case '\b': fputc('b', DEBUGSTREAM); break;
209     case '\f': fputc('f', DEBUGSTREAM); break;
210     case '\n': fputc('n', DEBUGSTREAM); break;
211     case '\r': fputc('r', DEBUGSTREAM); break;
212     case '\t': fputc('t', DEBUGSTREAM); break;
213     case '\v': fputc('v', DEBUGSTREAM); break;
214     default:
215     fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
216     }
217     }
218     }
219     fprintf(DEBUGSTREAM, "'\n");
220     }
221     }
222    
223     static void debug_pbool(const char *n, int b)
224     {
225     debug_pname(n);
226     fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
227     }
228    
229     static void debug_pint(const char *n, int i)
230     {
231     debug_pname(n);
232     fprintf(DEBUGSTREAM, "%i\n", i);
233     }
234    
235 bertho 1.2 static void debug_pdouble(const char *n, double d)
236     {
237     debug_pname(n);
238     fprintf(DEBUGSTREAM, "%g\n", d);
239     }
240    
241     static void debug_pfont(const char *n, gdFontPtr f)
242 bertho 1.1 {
243     const char *s = "<Unknown font>";
244     debug_pname(n);
245     if(f == gdFontTiny)
246     s = "gdFontTiny";
247     else if(f == gdFontSmall)
248     s = "gdFontSmall";
249     else if(f == gdFontMediumBold)
250     s = "gdFontMediumBold";
251     else if(f == gdFontLarge)
252     s = "gdFontLarge";
253     else if(f == gdFontGiant)
254     s = "gdFontGiant";
255     fprintf(DEBUGSTREAM, "%s\n", s);
256     }
257    
258     static void debug_pcolor(const char *n, color_t *c)
259     {
260     debug_pname(n);
261     fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
262     }
263    
264     void dump_config(void)
265     {
266     debug_pstring("cvsroot", conf.cvsroot);
267     debug_pstring("cvsmodule", conf.cvsmodule);
268     debug_pstring("date_format", conf.date_format);
269    
270     debug_pcolor("color_bg", &conf.color_bg);
271     debug_pbool("box_shadow", conf.box_shadow);
272     debug_pbool("upside_down", conf.upside_down);
273     debug_pbool("strip_untagged", conf.strip_untagged);
274     debug_pbool("strip_first_rev", conf.strip_first_rev);
275 bertho 1.3 debug_pbool("auto_stretch", conf.auto_stretch);
276     debug_pbool("anti_alias", conf.anti_alias);
277     debug_pbool("use_ttf", conf.use_ttf);
278     debug_pint("thick_lines", conf.thick_lines);
279 bertho 1.1
280 bertho 1.2 debug_pfont("tag_font", conf.tag_font.gdfont);
281     debug_pstring("tag_ttfont", conf.tag_font.ttfont);
282     debug_psouble("tag_ttsize", conf.tag_font.ttsize);
283 bertho 1.1 debug_pcolor("tag_color", &conf.tag_color);
284    
285 bertho 1.2 debug_pfont("rev_font", conf.rev_font.gdfont);
286     debug_pstring("rev_ttfont", conf.rev_font.ttfont);
287     debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
288 bertho 1.1 debug_pcolor("rev_color", &conf.rev_color);
289     debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
290     debug_pint("rev_separator", conf.rev_separator);
291     debug_pint("rev_minline", conf.rev_minline);
292     debug_pint("rev_maxline", conf.rev_maxline);
293     debug_pint("rev_lspace", conf.rev_lspace);
294     debug_pint("rev_rspace", conf.rev_rspace);
295     debug_pint("rev_tspace", conf.rev_tspace);
296     debug_pint("rev_bspace", conf.rev_bspace);
297     debug_pstring("rev_text", conf.rev_text);
298     debug_pcolor("rev_text_color", &conf.rev_text_color);
299 bertho 1.2 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
300     debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
301     debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
302    
303     debug_pfont("branch_font", conf.branch_font.gdfont);
304     debug_pstring("branch_ttfont", conf.branch_font.ttfont);
305     debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
306 bertho 1.1 debug_pcolor("branch_color", &conf.branch_color);
307 bertho 1.2 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
308     debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
309     debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
310     debug_pcolor("branch_tag_color", &conf.branch_tag_color);
311 bertho 1.1 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
312     debug_pint("branch_lspace", conf.branch_lspace);
313     debug_pint("branch_rspace", conf.branch_rspace);
314     debug_pint("branch_tspace", conf.branch_tspace);
315     debug_pint("branch_bspace", conf.branch_bspace);
316     debug_pint("branch_connect", conf.branch_connect);
317     debug_pint("branch_margin", conf.branch_margin);
318     debug_pint("branch_dupbox", conf.branch_dupbox);
319    
320     debug_pstring("title", conf.title);
321     debug_pint("title_x", conf.title_x);
322     debug_pint("title_y", conf.title_y);
323 bertho 1.2 debug_pfont("title_font", conf.title_font.gdfont);
324     debug_pstring("title_ttfont", conf.title_font.ttfont);
325     debug_pdouble("title_ttsize", conf.title_font.ttsize);
326 bertho 1.1 debug_pint("title_align", conf.title_align);
327     debug_pcolor("title_color", &conf.title_color);
328    
329     debug_pint("margin_top", conf.margin_top);
330     debug_pint("margin_bottom", conf.margin_bottom);
331     debug_pint("margin_left", conf.margin_left);
332     debug_pint("margin_right", conf.margin_right);
333    
334     debug_pint("image_type", conf.image_type);
335     debug_pint("image_quality", conf.image_quality);
336    
337     debug_pstring("map_name", conf.map_name);
338     debug_pstring("map_branch_href", conf.map_branch_href);
339     debug_pstring("map_branch_alt", conf.map_branch_alt);
340     debug_pstring("map_rev_href", conf.map_rev_href);
341     debug_pstring("map_rev_alt", conf.map_rev_alt);
342     debug_pstring("map_diff_href", conf.map_diff_href);
343     debug_pstring("map_diff_alt", conf.map_diff_alt);
344    
345     debug_pstring("expand[0]", conf.expand[0]);
346     debug_pstring("expand[1]", conf.expand[1]);
347     debug_pstring("expand[2]", conf.expand[2]);
348     debug_pstring("expand[3]", conf.expand[3]);
349     debug_pstring("expand[4]", conf.expand[4]);
350     debug_pstring("expand[5]", conf.expand[5]);
351     debug_pstring("expand[6]", conf.expand[6]);
352     debug_pstring("expand[7]", conf.expand[7]);
353     debug_pstring("expand[8]", conf.expand[8]);
354     debug_pstring("expand[9]", conf.expand[9]);
355     }
356     #endif
357    
358     /*
359     **************************************************************************
360     * String collection routines
361     **************************************************************************
362     */
363     #define STRALLOCSIZE 128
364     static char *str;
365     static int nstr;
366     static int nastr;
367    
368     static void reset_str(void)
369     {
370     nstr = 0;
371     }
372    
373     static void add_str(int c)
374     {
375     if(nstr + 1 + 1 > nastr)
376     {
377     str = xrealloc(str, nastr+STRALLOCSIZE);
378     nastr += STRALLOCSIZE;
379     }
380     str[nstr++] = c;
381     }
382    
383     static char *get_str(void)
384     {
385     if(!str)
386     return xstrdup("");
387    
388     str[nstr] = '\0';
389     return xstrdup(str);
390     }
391    
392     /*
393     **************************************************************************
394     * Input routines
395     **************************************************************************
396     */
397     static char *buf = NULL;
398     static int bufsize = 0;
399     static int bufalloc = 0;
400     static int bufpos = 0;
401     static int bufunput = -1;
402     static FILE *buffp;
403    
404     static void set_input(FILE *fp, char *s)
405     {
406     assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
407     buffp = fp;
408     bufsize = bufpos = 0;
409     if(s)
410     {
411     if(!buf)
412     {
413     bufalloc = 8192;
414     buf = xmalloc(bufalloc * sizeof(*buf));
415     }
416     bufsize = strlen(s);
417     assert(bufsize < bufalloc);
418     strcpy(buf, s);
419     }
420     }
421    
422     static int get_input(void)
423     {
424     if(bufunput != -1)
425     {
426     int c = bufunput;
427     bufunput = -1;
428     return c;
429     }
430    
431     if(bufpos < bufsize)
432     {
433     assert(buf != NULL);
434     retry_input:
435     return (int)((unsigned char)buf[bufpos++]);
436     }
437    
438     if(!buf)
439     {
440     bufalloc = 8192;
441     buf = xmalloc(bufalloc * sizeof(*buf));
442     bufsize = bufpos = 0;
443     }
444     if(buffp)
445     {
446     bufsize = fread(buf, 1, bufalloc, buffp);
447     bufpos = 0;
448     if(!bufsize)
449     return EOF;
450     goto retry_input;
451     }
452     return EOF;
453     }
454    
455     static void unget_input(int c)
456     {
457     bufunput = c;
458     }
459    
460     /*
461     **************************************************************************
462     * Lexical scanner
463     **************************************************************************
464     */
465     static int config_lex(void)
466     {
467     int ch;
468     while(1)
469     {
470     ch = get_input();
471     if(ch == '\n')
472     line_number++;
473    
474     if(isspace(ch))
475     continue;
476    
477     switch(ch)
478     {
479     case EOF:
480     case '=':
481     case ';':
482     return ch;
483    
484     case '#': /* Comment */
485     while((ch = get_input()) != '\n' && ch != EOF)
486     ;
487     if(ch != EOF)
488     unget_input(ch);
489     break;
490    
491     case '"':
492     reset_str();
493     while(1)
494     {
495     char c[4];
496     ch = get_input();
497     switch(ch)
498     {
499     case '\\': /* Start an escape sequence */
500     switch(ch = get_input())
501     {
502     default: /* This includes '\\', '"' and embedded newlines */
503     add_str(ch);
504     break;
505     case 'a': add_str('\a'); break;
506     case 'b': add_str('\b'); break;
507     case 'f': add_str('\f'); break;
508     case 'n': add_str('\n'); break;
509     case 'r': add_str('\r'); break;
510     case 't': add_str('\t'); break;
511     case 'v': add_str('\v'); break;
512     case 'x':
513     case 'X': /* Hex escape */
514     c[0] = get_input();
515     c[1] = get_input();
516     c[2] = '\0';
517     if(!isxdigit(c[0]) || !isxdigit(c[1]))
518     yyerror("Invalid hex escape");
519     add_str((int)strtol(c, NULL, 16));
520     break;
521     case '0':
522     case '1':
523     case '2': /* Octal escape */
524     c[0] = ch;
525     c[1] = c[2] = c[3] = '\0';
526     if((ch = get_input()) >= '0' && ch <= '7')
527     c[1] = ch;
528     else
529     unget_input(ch);
530     if((ch = get_input()) >= '0' && ch <= '7')
531     c[2] = ch;
532     else
533     unget_input(ch);
534     add_str((int)strtol(c, NULL, 8));
535     break;
536     case EOF:
537     yyerror("Unexpected EOF in escape");
538     break;
539     }
540     break;
541     case '"':
542     yylval.str = get_str();
543     return TYPE_STRING;
544     case '\n':
545     yyerror("Newline in string");
546     break;
547     case EOF:
548     yyerror("Unexpected EOF in string");
549     break;
550     default:
551     add_str(ch);
552     break;
553     }
554     }
555     break;
556    
557     default:
558     if(isalpha(ch) || ch == '_')
559     {
560     keyword_t skw;
561     keyword_t *kw;
562     /* Collect keyword */
563     reset_str();
564     add_str(ch);
565     while(1)
566     {
567     ch = get_input();
568     if(isalpha(ch) || ch == '_')
569     add_str(ch);
570     else
571     {
572     unget_input(ch);
573     break;
574     }
575     }
576     skw.keyword = get_str();
577     kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
578     if(!kw)
579     yyerror("Unknown keyword '%s'", skw.keyword);
580     xfree(skw.keyword);
581     if(kw->type == TYPE_VALUE)
582     {
583     yylval.i = kw->confref.val;
584     return TYPE_NUMBER;
585     }
586     yylval.kw = kw;
587     return TYPE_KEYWORD;
588     }
589     else if(isdigit(ch) || ch == '+' || ch == '-')
590     {
591     char *s;
592     char *eptr;
593 bertho 1.2 int type = TYPE_NUMBER;
594 bertho 1.1 /* Collect number */
595     reset_str();
596     add_str(ch);
597     while(1)
598     {
599     ch = get_input();
600 bertho 1.2 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
601 bertho 1.1 add_str(ch);
602     else
603     {
604     unget_input(ch);
605     break;
606     }
607 bertho 1.2 if(ch == '.')
608     type = TYPE_DOUBLE;
609 bertho 1.1 }
610     s = get_str();
611 bertho 1.2 if(type == TYPE_DOUBLE)
612     {
613     yylval.d = strtod(s, &eptr);
614     if(*eptr)
615     yyerror("Invalid floating point number");
616     }
617     else
618     {
619     yylval.i = strtol(s, &eptr, 0);
620     if(*eptr)
621     yyerror("Invalid number");
622     }
623 bertho 1.1 xfree(s);
624 bertho 1.2 return type;
625 bertho 1.1 }
626     else
627     yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
628     break;
629     }
630     }
631     }
632    
633     static void set_color(color_t *c, char *s)
634     {
635     char *cptr;
636     if(*s != '#' || strlen(s) != 7)
637     {
638     colorerror:
639     yyerror("Invalid color value");
640     }
641     c->b = strtol(s+5, &cptr, 16);
642     if(*cptr)
643     goto colorerror;
644     s[5] = '\0';
645     c->g = strtol(s+3, &cptr, 16);
646     if(*cptr)
647     goto colorerror;
648     s[3] = '\0';
649     c->r = strtol(s+1, &cptr, 16);
650     if(*cptr)
651     goto colorerror;
652     }
653    
654     static gdFontPtr get_font(int id)
655     {
656     switch(id)
657     {
658     case 0: return gdFontTiny;
659     case 1: return gdFontSmall;
660     default:
661     case 2: return gdFontMediumBold;
662     case 3: return gdFontLarge;
663     case 4: return gdFontGiant;
664     }
665     }
666    
667     /*
668     **************************************************************************
669     * The config parser
670     * Grammar:
671     * file : <Empty>
672     * | lines
673     * ;
674     *
675     * lines : line
676     * | lines line
677     * ;
678     *
679     * line : <keyword> '=' <value> ';'
680     * | ';'
681     * ;
682     **************************************************************************
683     */
684     static void config_parse(void)
685     {
686     int state = 0;
687     int token;
688     int t;
689     keyword_t *kw = NULL;
690    
691     while(1)
692     {
693     token = config_lex();
694     if(token == EOF)
695     {
696     if(state)
697     yyerror("Unexpected EOF");
698     break;
699     }
700    
701     switch(state)
702     {
703     case 0:
704     if(token == TYPE_KEYWORD)
705     {
706     kw = yylval.kw;
707     state = 1;
708     }
709     else if(token != ';')
710     yyerror("Keyword expected");
711     break;
712     case 1:
713     if(token != '=')
714     yyerror("'=' expected");
715     state = 2;
716     break;
717     case 2:
718     if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
719     t = TYPE_NUMBER;
720     else if(kw->type == TYPE_COLOR)
721     t = TYPE_STRING;
722     else
723     t = kw->type;
724 bertho 1.2
725     if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
726     {
727     /* Auto promote numbers to doubles if required */
728     yylval.d = (double)yylval.i;
729     token = TYPE_DOUBLE;
730     }
731    
732 bertho 1.1 if(token != t)
733     {
734     char *e;
735     switch(kw->type)
736     {
737     case TYPE_STRING: e = "String"; break;
738     case TYPE_NUMBER: e = "Number"; break;
739     case TYPE_COLOR: e = "Color"; break;
740     case TYPE_FONT: e = "Font"; break;
741     case TYPE_BOOLEAN: e = "Boolean"; break;
742 bertho 1.2 case TYPE_DOUBLE: e = "Double"; break;
743 bertho 1.1 default: e = "Internal error: Unknown type"; break;
744     }
745     yyerror("%s expected", e);
746     }
747     #ifdef DEBUG
748     printf("processing: '%s'\n", kw->keyword);
749     #endif
750     switch(kw->type)
751     {
752     case TYPE_STRING:
753     *kw->confref.s = yylval.str;
754     break;
755     case TYPE_NUMBER:
756     *kw->confref.i = yylval.i;
757     break;
758     case TYPE_BOOLEAN:
759 bertho 1.3 if(yylval.i == -1)
760     *kw->confref.i = !*kw->confref.i;
761     else
762     *kw->confref.i = yylval.i != 0;
763 bertho 1.1 break;
764     case TYPE_COLOR:
765     set_color(kw->confref.c, yylval.str);
766     break;
767     case TYPE_FONT:
768 bertho 1.2 kw->confref.f->gdfont = get_font(yylval.i);
769     break;
770     case TYPE_DOUBLE:
771     *kw->confref.d = yylval.d;
772 bertho 1.1 break;
773     default:
774     yyerror("Internal error: Unknown type passed %d", kw->type);
775     break;
776     }
777     state = 3;
778     break;
779     case 3:
780     if(token != ';')
781     yyerror("';' expected");
782     state = 0;
783     break;
784     default:
785     yyerror("Internal error: invalid state %d", state);
786     break;
787     }
788     }
789     }
790    
791     /*
792     **************************************************************************
793     * Configuration
794     **************************************************************************
795     */
796     void stack_option(const char *opt)
797     {
798     stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
799     stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
800     strcpy(stacked_opts[nstacked_opts], opt);
801     strcat(stacked_opts[nstacked_opts], ";");
802     nstacked_opts++;
803     #ifdef DEBUG
804     printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
805     #endif
806     }
807    
808     void read_config(const char *path)
809     {
810     FILE *fp;
811    
812     /* Make sure we have them sorted for bsearch */
813     qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
814    
815     if(path)
816     {
817     if((fp = fopen(path, "r")) != NULL)
818     input_file = path;
819     }
820     else
821     {
822     if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
823     {
824     if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
825     input_file = ETCDIR "/" CONFFILENAME;
826     }
827     else
828     input_file = "./" CONFFILENAME;
829     }
830    
831     if(fp)
832     {
833     line_number = 1;
834     set_input(fp, NULL);
835     config_parse();
836     fclose(fp);
837     input_file = NULL;
838     }
839    
840     if(nstacked_opts)
841     {
842     int i;
843     for(i = 0; i < nstacked_opts; i++)
844     {
845     line_number = 0;
846     set_input(NULL, stacked_opts[i]);
847     input_file = stacked_opts[i];
848     #ifdef DEBUG
849     printf("parsing stacked option: '%s'\n", stacked_opts[i]);
850     #endif
851     config_parse();
852     }
853     input_file = NULL;
854     }
855     #ifdef DEBUG
856     dump_config();
857     #endif
858     }
859    

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