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0c93b91d | 1 | /* |
b6a23028 | 2 | * Copyright © 2008,2009 Red Hat, Inc. |
0c93b91d BE |
3 | * |
4 | * Red Hat Author(s): Behdad Esfahbod | |
5 | * | |
6 | * Permission to use, copy, modify, distribute, and sell this software and its | |
7 | * documentation for any purpose is hereby granted without fee, provided that | |
8 | * the above copyright notice appear in all copies and that both that | |
9 | * copyright notice and this permission notice appear in supporting | |
10 | * documentation, and that the name of Keith Packard not be used in | |
11 | * advertising or publicity pertaining to distribution of the software without | |
12 | * specific, written prior permission. Keith Packard makes no | |
13 | * representations about the suitability of this software for any purpose. It | |
14 | * is provided "as is" without express or implied warranty. | |
15 | * | |
16 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
17 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
18 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
19 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
22 | * PERFORMANCE OF THIS SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "fcint.h" | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | #include <stdarg.h> | |
29 | ||
30 | ||
2017a5eb BE |
31 | /* |
32 | * Some ideas for future syntax extensions: | |
33 | * | |
34 | * - allow indexing subexprs using '%{[idx]elt1,elt2{subexpr}}' | |
35 | * - allow indexing simple tags using '%{elt[idx]}' | |
36 | * - conditional/filtering/deletion on binding (using '(w)'/'(s)' notation) | |
37 | */ | |
38 | ||
0c93b91d BE |
39 | static void |
40 | message (const char *fmt, ...) | |
41 | { | |
42 | va_list args; | |
43 | va_start (args, fmt); | |
8c31a243 | 44 | fprintf (stderr, "Fontconfig: Pattern format error: "); |
0c93b91d | 45 | vfprintf (stderr, fmt, args); |
d6506ff6 | 46 | fprintf (stderr, ".\n"); |
0c93b91d BE |
47 | va_end (args); |
48 | } | |
49 | ||
50 | ||
27b3e2dd | 51 | typedef struct _FcFormatContext |
0c93b91d | 52 | { |
27b3e2dd BE |
53 | const FcChar8 *format_orig; |
54 | const FcChar8 *format; | |
55 | int format_len; | |
2017a5eb | 56 | FcChar8 *word; |
27b3e2dd | 57 | } FcFormatContext; |
c493c3b7 | 58 | |
8c31a243 | 59 | static FcBool |
27b3e2dd BE |
60 | FcFormatContextInit (FcFormatContext *c, |
61 | const FcChar8 *format) | |
62 | { | |
63 | c->format_orig = c->format = format; | |
64 | c->format_len = strlen ((const char *) format); | |
2017a5eb | 65 | c->word = malloc (c->format_len + 1); |
8c31a243 | 66 | |
2017a5eb | 67 | return c->word != NULL; |
27b3e2dd | 68 | } |
c493c3b7 | 69 | |
27b3e2dd BE |
70 | static void |
71 | FcFormatContextDone (FcFormatContext *c) | |
72 | { | |
73 | if (c) | |
74 | { | |
2017a5eb | 75 | free (c->word); |
27b3e2dd BE |
76 | } |
77 | } | |
c493c3b7 | 78 | |
27b3e2dd BE |
79 | static FcBool |
80 | consume_char (FcFormatContext *c, | |
81 | FcChar8 term) | |
82 | { | |
83 | if (*c->format != term) | |
d6506ff6 BE |
84 | return FcFalse; |
85 | ||
86 | c->format++; | |
87 | return FcTrue; | |
88 | } | |
89 | ||
90 | static FcBool | |
91 | expect_char (FcFormatContext *c, | |
92 | FcChar8 term) | |
93 | { | |
94 | FcBool res = consume_char (c, term); | |
95 | if (!res) | |
96 | { | |
97 | if (c->format == c->format_orig + c->format_len) | |
98 | message ("format ended while expecting '%c'", | |
99 | term); | |
100 | else | |
101 | message ("expected '%c' at %d", | |
102 | term, c->format - c->format_orig + 1); | |
103 | } | |
104 | return res; | |
105 | } | |
106 | ||
107 | static FcBool | |
108 | FcCharIsPunct (const FcChar8 c) | |
109 | { | |
110 | if (c < '0') | |
111 | return FcTrue; | |
112 | if (c <= '9') | |
113 | return FcFalse; | |
114 | if (c < 'A') | |
115 | return FcTrue; | |
116 | if (c <= 'Z') | |
117 | return FcFalse; | |
118 | if (c < 'a') | |
119 | return FcTrue; | |
120 | if (c <= 'z') | |
121 | return FcFalse; | |
122 | if (c <= '~') | |
123 | return FcTrue; | |
124 | return FcFalse; | |
125 | } | |
126 | ||
127 | static FcBool | |
2017a5eb | 128 | read_word (FcFormatContext *c) |
d6506ff6 BE |
129 | { |
130 | FcChar8 *p; | |
131 | ||
2017a5eb | 132 | p = c->word; |
d6506ff6 BE |
133 | |
134 | while (*c->format) | |
135 | { | |
136 | if (*c->format == '\\') | |
137 | { | |
138 | c->format++; | |
139 | if (*c->format) | |
140 | c->format++; | |
141 | continue; | |
142 | } | |
143 | else if (FcCharIsPunct (*c->format)) | |
144 | break; | |
145 | ||
146 | *p++ = *c->format++; | |
147 | } | |
148 | *p = '\0'; | |
149 | ||
2017a5eb | 150 | if (p == c->word) |
0c93b91d | 151 | { |
d6506ff6 BE |
152 | message ("expected element name at %d", |
153 | c->format - c->format_orig + 1); | |
27b3e2dd BE |
154 | return FcFalse; |
155 | } | |
0c93b91d | 156 | |
27b3e2dd BE |
157 | return FcTrue; |
158 | } | |
0c93b91d | 159 | |
8c31a243 | 160 | static FcBool |
7717b25f BE |
161 | interpret_expr (FcFormatContext *c, |
162 | FcPattern *pat, | |
163 | FcStrBuf *buf, | |
164 | FcChar8 term); | |
d6506ff6 | 165 | |
8c31a243 BE |
166 | static FcBool |
167 | interpret_subexpr (FcFormatContext *c, | |
27b3e2dd BE |
168 | FcPattern *pat, |
169 | FcStrBuf *buf) | |
170 | { | |
8c31a243 | 171 | return expect_char (c, '{') && |
7717b25f | 172 | interpret_expr (c, pat, buf, '}') && |
8c31a243 BE |
173 | expect_char (c, '}'); |
174 | } | |
0c93b91d | 175 | |
7717b25f BE |
176 | static FcBool |
177 | maybe_interpret_subexpr (FcFormatContext *c, | |
178 | FcPattern *pat, | |
179 | FcStrBuf *buf) | |
180 | { | |
181 | return (*c->format == '{') ? | |
182 | interpret_subexpr (c, pat, buf) : | |
183 | FcTrue; | |
184 | } | |
185 | ||
186 | static FcBool | |
187 | skip_subexpr (FcFormatContext *c); | |
188 | ||
189 | static FcBool | |
190 | skip_percent (FcFormatContext *c) | |
191 | { | |
2017a5eb BE |
192 | int width; |
193 | ||
7717b25f BE |
194 | if (!expect_char (c, '%')) |
195 | return FcFalse; | |
196 | ||
197 | /* skip an optional width specifier */ | |
2017a5eb | 198 | width = strtol ((const char *) c->format, (char **) &c->format, 10); |
7717b25f BE |
199 | |
200 | if (!expect_char (c, '{')) | |
201 | return FcFalse; | |
202 | ||
203 | while(*c->format && *c->format != '}') | |
204 | { | |
205 | switch (*c->format) | |
206 | { | |
207 | case '\\': | |
208 | c->format++; /* skip over '\\' */ | |
209 | if (*c->format) | |
210 | c->format++; | |
211 | continue; | |
212 | case '{': | |
213 | if (!skip_subexpr (c)) | |
214 | return FcFalse; | |
215 | continue; | |
216 | } | |
217 | c->format++; | |
218 | } | |
219 | ||
220 | return expect_char (c, '}'); | |
221 | } | |
222 | ||
223 | static FcBool | |
224 | skip_expr (FcFormatContext *c) | |
225 | { | |
226 | while(*c->format && *c->format != '}') | |
227 | { | |
228 | switch (*c->format) | |
229 | { | |
230 | case '\\': | |
231 | c->format++; /* skip over '\\' */ | |
232 | if (*c->format) | |
233 | c->format++; | |
234 | continue; | |
235 | case '%': | |
236 | if (!skip_percent (c)) | |
237 | return FcFalse; | |
238 | continue; | |
239 | } | |
240 | c->format++; | |
241 | } | |
242 | ||
243 | return FcTrue; | |
244 | } | |
245 | ||
246 | static FcBool | |
247 | skip_subexpr (FcFormatContext *c) | |
248 | { | |
249 | return expect_char (c, '{') && | |
250 | skip_expr (c) && | |
251 | expect_char (c, '}'); | |
252 | } | |
253 | ||
254 | static FcBool | |
255 | maybe_skip_subexpr (FcFormatContext *c) | |
256 | { | |
257 | return (*c->format == '{') ? | |
258 | skip_subexpr (c) : | |
259 | FcTrue; | |
260 | } | |
261 | ||
8c31a243 BE |
262 | static FcBool |
263 | interpret_filter (FcFormatContext *c, | |
264 | FcPattern *pat, | |
265 | FcStrBuf *buf) | |
266 | { | |
267 | FcObjectSet *os; | |
268 | FcPattern *subpat; | |
269 | ||
270 | if (!expect_char (c, '+')) | |
271 | return FcFalse; | |
272 | ||
273 | os = FcObjectSetCreate (); | |
274 | if (!os) | |
275 | return FcFalse; | |
276 | ||
277 | do | |
278 | { | |
2017a5eb BE |
279 | if (!read_word (c) || |
280 | !FcObjectSetAdd (os, (const char *) c->word)) | |
8c31a243 BE |
281 | { |
282 | FcObjectSetDestroy (os); | |
283 | return FcFalse; | |
284 | } | |
285 | } | |
286 | while (consume_char (c, ',')); | |
287 | ||
288 | subpat = FcPatternFilter (pat, os); | |
289 | FcObjectSetDestroy (os); | |
290 | ||
291 | if (!subpat || | |
292 | !interpret_subexpr (c, subpat, buf)) | |
293 | return FcFalse; | |
294 | ||
295 | FcPatternDestroy (subpat); | |
296 | return FcTrue; | |
297 | } | |
298 | ||
299 | static FcBool | |
300 | interpret_delete (FcFormatContext *c, | |
301 | FcPattern *pat, | |
302 | FcStrBuf *buf) | |
303 | { | |
304 | FcPattern *subpat; | |
305 | ||
306 | if (!expect_char (c, '-')) | |
307 | return FcFalse; | |
308 | ||
309 | subpat = FcPatternDuplicate (pat); | |
310 | if (!subpat) | |
311 | return FcFalse; | |
312 | ||
313 | do | |
314 | { | |
2017a5eb | 315 | if (!read_word (c)) |
8c31a243 BE |
316 | { |
317 | FcPatternDestroy (subpat); | |
318 | return FcFalse; | |
319 | } | |
320 | ||
2017a5eb | 321 | FcPatternDel (subpat, (const char *) c->word); |
8c31a243 BE |
322 | } |
323 | while (consume_char (c, ',')); | |
324 | ||
325 | if (!interpret_subexpr (c, subpat, buf)) | |
326 | return FcFalse; | |
327 | ||
328 | FcPatternDestroy (subpat); | |
329 | return FcTrue; | |
330 | } | |
331 | ||
7717b25f | 332 | static FcBool |
2017a5eb BE |
333 | interpret_cond (FcFormatContext *c, |
334 | FcPattern *pat, | |
335 | FcStrBuf *buf) | |
7717b25f BE |
336 | { |
337 | FcBool pass; | |
338 | ||
339 | if (!expect_char (c, '?')) | |
340 | return FcFalse; | |
341 | ||
342 | pass = FcTrue; | |
343 | ||
344 | do | |
345 | { | |
346 | FcBool negate; | |
347 | FcValue v; | |
348 | ||
349 | negate = consume_char (c, '!'); | |
350 | ||
2017a5eb | 351 | if (!read_word (c)) |
7717b25f BE |
352 | return FcFalse; |
353 | ||
354 | pass = pass && | |
355 | (negate ^ | |
2017a5eb BE |
356 | (FcResultMatch == FcPatternGet (pat, |
357 | (const char *) c->word, | |
358 | 0, &v))); | |
7717b25f BE |
359 | } |
360 | while (consume_char (c, ',')); | |
361 | ||
362 | if (pass) | |
363 | { | |
364 | if (!interpret_subexpr (c, pat, buf) || | |
365 | !maybe_skip_subexpr (c)) | |
366 | return FcFalse; | |
367 | } | |
368 | else | |
369 | { | |
370 | if (!skip_subexpr (c) || | |
371 | !maybe_interpret_subexpr (c, pat, buf)) | |
372 | return FcFalse; | |
373 | } | |
374 | ||
375 | return FcTrue; | |
376 | } | |
377 | ||
b6a23028 BE |
378 | static FcBool |
379 | interpret_count (FcFormatContext *c, | |
380 | FcPattern *pat, | |
381 | FcStrBuf *buf) | |
382 | { | |
383 | int count; | |
384 | FcPatternElt *e; | |
385 | FcChar8 buf_static[64]; | |
386 | ||
387 | if (!expect_char (c, '#')) | |
388 | return FcFalse; | |
389 | ||
390 | if (!read_word (c)) | |
391 | return FcFalse; | |
392 | ||
393 | count = 0; | |
394 | e = FcPatternObjectFindElt (pat, | |
395 | FcObjectFromName ((const char *) c->word)); | |
396 | if (e) | |
397 | { | |
398 | FcValueListPtr l; | |
399 | count++; | |
400 | for (l = FcPatternEltValues(e); | |
401 | l->next; | |
402 | l = l->next) | |
403 | count++; | |
404 | } | |
405 | ||
406 | snprintf (buf_static, sizeof (buf_static), "%d", count); | |
407 | FcStrBufString (buf, buf_static); | |
408 | ||
409 | return FcTrue; | |
410 | } | |
411 | ||
412 | static FcBool | |
413 | interpret_simple (FcFormatContext *c, | |
414 | FcPattern *pat, | |
415 | FcStrBuf *buf) | |
416 | { | |
417 | FcPatternElt *e; | |
418 | FcBool add_colon = FcFalse; | |
419 | FcBool add_elt_name = FcFalse; | |
420 | ||
421 | if (consume_char (c, ':')) | |
422 | add_colon = FcTrue; | |
423 | ||
424 | if (!read_word (c)) | |
425 | return FcFalse; | |
426 | ||
427 | if (consume_char (c, '=')) | |
428 | add_elt_name = FcTrue; | |
429 | ||
430 | e = FcPatternObjectFindElt (pat, | |
431 | FcObjectFromName ((const char *) c->word)); | |
432 | if (e) | |
433 | { | |
434 | FcValueListPtr l; | |
435 | ||
436 | if (add_colon) | |
437 | FcStrBufChar (buf, ':'); | |
438 | if (add_elt_name) | |
439 | { | |
440 | FcStrBufString (buf, c->word); | |
441 | FcStrBufChar (buf, '='); | |
442 | } | |
443 | ||
444 | l = FcPatternEltValues(e); | |
445 | FcNameUnparseValueList (buf, l, '\0'); | |
446 | } | |
447 | ||
448 | return FcTrue; | |
449 | } | |
450 | ||
ced38254 BE |
451 | static FcChar8 * |
452 | cescape (const FcChar8 *str) | |
453 | { | |
454 | FcStrBuf buf; | |
455 | FcChar8 buf_static[8192]; | |
456 | ||
457 | FcStrBufInit (&buf, buf_static, sizeof (buf_static)); | |
458 | while(*str) | |
459 | { | |
460 | switch (*str) | |
461 | { | |
462 | case '\\': | |
463 | case '"': | |
464 | FcStrBufChar (&buf, '\\'); | |
465 | break; | |
466 | } | |
467 | FcStrBufChar (&buf, *str++); | |
468 | } | |
469 | return FcStrBufDone (&buf); | |
470 | } | |
471 | ||
472 | static FcChar8 * | |
473 | shescape (const FcChar8 *str) | |
474 | { | |
475 | FcStrBuf buf; | |
476 | FcChar8 buf_static[8192]; | |
477 | ||
478 | FcStrBufInit (&buf, buf_static, sizeof (buf_static)); | |
479 | FcStrBufChar (&buf, '\''); | |
480 | while(*str) | |
481 | { | |
482 | if (*str == '\'') | |
483 | FcStrBufString (&buf, (const FcChar8 *) "'\\''"); | |
484 | else | |
485 | FcStrBufChar (&buf, *str); | |
486 | str++; | |
487 | } | |
488 | FcStrBufChar (&buf, '\''); | |
489 | return FcStrBufDone (&buf); | |
490 | } | |
491 | ||
492 | static FcChar8 * | |
493 | xmlescape (const FcChar8 *str) | |
494 | { | |
495 | FcStrBuf buf; | |
496 | FcChar8 buf_static[8192]; | |
497 | ||
498 | FcStrBufInit (&buf, buf_static, sizeof (buf_static)); | |
499 | while(*str) | |
500 | { | |
501 | switch (*str) | |
502 | { | |
503 | case '&': FcStrBufString (&buf, (const FcChar8 *) "&"); break; | |
504 | case '<': FcStrBufString (&buf, (const FcChar8 *) "<"); break; | |
505 | case '>': FcStrBufString (&buf, (const FcChar8 *) ">"); break; | |
506 | default: FcStrBufChar (&buf, *str); break; | |
507 | } | |
508 | str++; | |
509 | } | |
510 | return FcStrBufDone (&buf); | |
511 | } | |
512 | ||
2017a5eb BE |
513 | static FcChar8 * |
514 | convert (FcFormatContext *c, | |
515 | const FcChar8 *str) | |
516 | { | |
517 | if (!read_word (c)) | |
518 | return NULL; | |
ced38254 BE |
519 | #define CONVERTER(name, func) \ |
520 | else if (0 == strcmp ((const char *) c->word, name))\ | |
521 | return func (str) | |
522 | CONVERTER ("downcase", FcStrDowncase); | |
523 | CONVERTER ("basename", FcStrBasename); | |
524 | CONVERTER ("dirname", FcStrDirname); | |
525 | CONVERTER ("cescape", cescape); | |
526 | CONVERTER ("shescape", shescape); | |
527 | CONVERTER ("xmlescape", xmlescape); | |
2017a5eb BE |
528 | |
529 | message ("unknown converter \"%s\"", | |
530 | c->word); | |
531 | return NULL; | |
532 | } | |
533 | ||
534 | static FcBool | |
535 | maybe_interpret_converts (FcFormatContext *c, | |
536 | FcStrBuf *buf, | |
537 | int start) | |
538 | { | |
539 | while (consume_char (c, '|')) | |
540 | { | |
541 | const FcChar8 *str; | |
542 | FcChar8 *new_str; | |
543 | ||
544 | /* nul-terminate the buffer */ | |
545 | FcStrBufChar (buf, '\0'); | |
546 | if (buf->failed) | |
547 | return FcFalse; | |
548 | str = buf->buf + start; | |
549 | ||
550 | if (!(new_str = convert (c, str))) | |
551 | return FcFalse; | |
552 | ||
553 | /* replace in the buffer */ | |
554 | buf->len = start; | |
555 | FcStrBufString (buf, new_str); | |
556 | free (new_str); | |
557 | } | |
558 | ||
559 | return FcTrue; | |
560 | } | |
561 | ||
562 | static FcBool | |
563 | align_to_width (FcStrBuf *buf, | |
564 | int start, | |
565 | int width) | |
566 | { | |
567 | int len; | |
568 | ||
569 | if (buf->failed) | |
570 | return FcFalse; | |
571 | ||
572 | len = buf->len - start; | |
573 | if (len < -width) | |
574 | { | |
575 | /* left align */ | |
576 | while (len++ < -width) | |
577 | FcStrBufChar (buf, ' '); | |
578 | } | |
579 | else if (len < width) | |
580 | { | |
581 | int old_len; | |
582 | old_len = len; | |
583 | /* right align */ | |
584 | while (len++ < width) | |
585 | FcStrBufChar (buf, ' '); | |
586 | if (buf->failed) | |
587 | return FcFalse; | |
588 | len = old_len; | |
589 | memmove (buf->buf + buf->len - len, | |
590 | buf->buf + buf->len - width, | |
591 | len); | |
592 | memset (buf->buf + buf->len - width, | |
593 | ' ', | |
594 | width - len); | |
595 | } | |
596 | ||
597 | return !buf->failed; | |
598 | } | |
8c31a243 BE |
599 | static FcBool |
600 | interpret_percent (FcFormatContext *c, | |
601 | FcPattern *pat, | |
602 | FcStrBuf *buf) | |
603 | { | |
2017a5eb BE |
604 | int width, start; |
605 | FcBool ret; | |
8c31a243 BE |
606 | |
607 | if (!expect_char (c, '%')) | |
608 | return FcFalse; | |
609 | ||
610 | if (consume_char (c, '%')) /* "%%" */ | |
611 | { | |
612 | FcStrBufChar (buf, '%'); | |
613 | return FcTrue; | |
614 | } | |
615 | ||
616 | /* parse an optional width specifier */ | |
617 | width = strtol ((const char *) c->format, (char **) &c->format, 10); | |
618 | ||
8c31a243 BE |
619 | if (!expect_char (c, '{')) |
620 | return FcFalse; | |
621 | ||
2017a5eb | 622 | start = buf->len; |
7717b25f | 623 | |
2017a5eb BE |
624 | switch (*c->format) { |
625 | case '{': ret = interpret_subexpr (c, pat, buf); break; | |
626 | case '+': ret = interpret_filter (c, pat, buf); break; | |
627 | case '-': ret = interpret_delete (c, pat, buf); break; | |
628 | case '?': ret = interpret_cond (c, pat, buf); break; | |
b6a23028 | 629 | case '#': ret = interpret_count (c, pat, buf); break; |
2017a5eb | 630 | default: ret = interpret_simple (c, pat, buf); break; |
0c93b91d | 631 | } |
c493c3b7 | 632 | |
2017a5eb BE |
633 | return ret && |
634 | maybe_interpret_converts (c, buf, start) && | |
635 | align_to_width (buf, start, width) && | |
636 | expect_char (c, '}'); | |
0c93b91d BE |
637 | } |
638 | ||
639 | static char escaped_char(const char ch) | |
640 | { | |
641 | switch (ch) { | |
642 | case 'a': return '\a'; | |
643 | case 'b': return '\b'; | |
644 | case 'f': return '\f'; | |
645 | case 'n': return '\n'; | |
646 | case 'r': return '\r'; | |
647 | case 't': return '\t'; | |
648 | case 'v': return '\v'; | |
649 | default: return ch; | |
650 | } | |
651 | } | |
652 | ||
8c31a243 | 653 | static FcBool |
7717b25f BE |
654 | interpret_expr (FcFormatContext *c, |
655 | FcPattern *pat, | |
656 | FcStrBuf *buf, | |
657 | FcChar8 term) | |
0c93b91d | 658 | { |
7717b25f | 659 | while (*c->format && *c->format != term) |
0c93b91d | 660 | { |
27b3e2dd | 661 | switch (*c->format) |
0c93b91d BE |
662 | { |
663 | case '\\': | |
27b3e2dd BE |
664 | c->format++; /* skip over '\\' */ |
665 | if (*c->format) | |
666 | FcStrBufChar (buf, escaped_char (*c->format++)); | |
0c93b91d BE |
667 | continue; |
668 | case '%': | |
8c31a243 BE |
669 | if (!interpret_percent (c, pat, buf)) |
670 | return FcFalse; | |
0c93b91d BE |
671 | continue; |
672 | } | |
27b3e2dd | 673 | FcStrBufChar (buf, *c->format++); |
0c93b91d | 674 | } |
8c31a243 | 675 | return FcTrue; |
0c93b91d BE |
676 | } |
677 | ||
678 | FcChar8 * | |
679 | FcPatternFormat (FcPattern *pat, const FcChar8 *format) | |
680 | { | |
ced38254 BE |
681 | FcStrBuf buf; |
682 | FcChar8 buf_static[8192]; | |
27b3e2dd | 683 | FcFormatContext c; |
ced38254 | 684 | FcBool ret; |
0c93b91d | 685 | |
ced38254 | 686 | FcStrBufInit (&buf, buf_static, sizeof (buf_static)); |
8c31a243 BE |
687 | if (!FcFormatContextInit (&c, format)) |
688 | return NULL; | |
0c93b91d | 689 | |
7717b25f | 690 | ret = interpret_expr (&c, pat, &buf, '\0'); |
0c93b91d | 691 | |
27b3e2dd | 692 | FcFormatContextDone (&c); |
8c31a243 BE |
693 | if (ret) |
694 | return FcStrBufDone (&buf); | |
695 | else | |
696 | { | |
697 | FcStrBufDestroy (&buf); | |
698 | return NULL; | |
699 | } | |
0c93b91d BE |
700 | } |
701 | ||
702 | #define __fcformat__ | |
703 | #include "fcaliastail.h" | |
704 | #undef __fcformat__ |