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1 | /* | |
2 | * $RCSId: xc/lib/fontconfig/src/fcxml.c,v 1.21 2002/08/22 18:53:22 keithp Exp $ | |
3 | * | |
4 | * Copyright © 2002 Keith Packard | |
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 <fcntl.h> | |
27 | #include <stdarg.h> | |
28 | #include <dirent.h> | |
29 | ||
30 | #ifdef ENABLE_LIBXML2 | |
31 | ||
32 | #include <libxml/parser.h> | |
33 | ||
34 | #define XML_Char xmlChar | |
35 | #define XML_Parser xmlParserCtxtPtr | |
36 | #define XML_ParserFree xmlFreeParserCtxt | |
37 | #define XML_GetCurrentLineNumber xmlSAX2GetLineNumber | |
38 | #define XML_GetErrorCode xmlCtxtGetLastError | |
39 | #define XML_ErrorString(Error) (Error)->message | |
40 | ||
41 | #else /* ENABLE_LIBXML2 */ | |
42 | ||
43 | #ifndef HAVE_XMLPARSE_H | |
44 | #define HAVE_XMLPARSE_H 0 | |
45 | #endif | |
46 | ||
47 | #if HAVE_XMLPARSE_H | |
48 | #include <xmlparse.h> | |
49 | #else | |
50 | #include <expat.h> | |
51 | #endif | |
52 | ||
53 | #endif /* ENABLE_LIBXML2 */ | |
54 | ||
55 | #ifdef _WIN32 | |
56 | #define STRICT | |
57 | #include <windows.h> | |
58 | #undef STRICT | |
59 | #endif | |
60 | ||
61 | ||
62 | void | |
63 | FcTestDestroy (FcTest *test) | |
64 | { | |
65 | if (test->next) | |
66 | FcTestDestroy (test->next); | |
67 | FcExprDestroy (test->expr); | |
68 | FcMemFree (FC_MEM_TEST, sizeof (FcTest)); | |
69 | free (test); | |
70 | } | |
71 | ||
72 | FcExpr * | |
73 | FcExprCreateInteger (int i) | |
74 | { | |
75 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
76 | ||
77 | if (e) | |
78 | { | |
79 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
80 | e->op = FcOpInteger; | |
81 | e->u.ival = i; | |
82 | } | |
83 | return e; | |
84 | } | |
85 | ||
86 | FcExpr * | |
87 | FcExprCreateDouble (double d) | |
88 | { | |
89 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
90 | ||
91 | if (e) | |
92 | { | |
93 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
94 | e->op = FcOpDouble; | |
95 | e->u.dval = d; | |
96 | } | |
97 | return e; | |
98 | } | |
99 | ||
100 | FcExpr * | |
101 | FcExprCreateString (const FcChar8 *s) | |
102 | { | |
103 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
104 | ||
105 | if (e) | |
106 | { | |
107 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
108 | e->op = FcOpString; | |
109 | e->u.sval = FcStrCopy (s); | |
110 | } | |
111 | return e; | |
112 | } | |
113 | ||
114 | FcExpr * | |
115 | FcExprCreateMatrix (const FcMatrix *m) | |
116 | { | |
117 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
118 | ||
119 | if (e) | |
120 | { | |
121 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
122 | e->op = FcOpMatrix; | |
123 | e->u.mval = FcMatrixCopy (m); | |
124 | } | |
125 | return e; | |
126 | } | |
127 | ||
128 | FcExpr * | |
129 | FcExprCreateBool (FcBool b) | |
130 | { | |
131 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
132 | ||
133 | if (e) | |
134 | { | |
135 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
136 | e->op = FcOpBool; | |
137 | e->u.bval = b; | |
138 | } | |
139 | return e; | |
140 | } | |
141 | ||
142 | FcExpr * | |
143 | FcExprCreateNil (void) | |
144 | { | |
145 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
146 | ||
147 | if (e) | |
148 | { | |
149 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
150 | e->op = FcOpNil; | |
151 | } | |
152 | return e; | |
153 | } | |
154 | ||
155 | FcExpr * | |
156 | FcExprCreateField (const char *field) | |
157 | { | |
158 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
159 | ||
160 | if (e) | |
161 | { | |
162 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
163 | e->op = FcOpField; | |
164 | e->u.object = FcObjectFromName (field); | |
165 | } | |
166 | return e; | |
167 | } | |
168 | ||
169 | FcExpr * | |
170 | FcExprCreateConst (const FcChar8 *constant) | |
171 | { | |
172 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
173 | ||
174 | if (e) | |
175 | { | |
176 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
177 | e->op = FcOpConst; | |
178 | e->u.constant = FcStrCopy (constant); | |
179 | } | |
180 | return e; | |
181 | } | |
182 | ||
183 | FcExpr * | |
184 | FcExprCreateOp (FcExpr *left, FcOp op, FcExpr *right) | |
185 | { | |
186 | FcExpr *e = (FcExpr *) malloc (sizeof (FcExpr)); | |
187 | ||
188 | if (e) | |
189 | { | |
190 | FcMemAlloc (FC_MEM_EXPR, sizeof (FcExpr)); | |
191 | e->op = op; | |
192 | e->u.tree.left = left; | |
193 | e->u.tree.right = right; | |
194 | } | |
195 | return e; | |
196 | } | |
197 | ||
198 | void | |
199 | FcExprDestroy (FcExpr *e) | |
200 | { | |
201 | if (!e) | |
202 | return; | |
203 | switch (e->op) { | |
204 | case FcOpInteger: | |
205 | break; | |
206 | case FcOpDouble: | |
207 | break; | |
208 | case FcOpString: | |
209 | FcStrFree (e->u.sval); | |
210 | break; | |
211 | case FcOpMatrix: | |
212 | FcMatrixFree (e->u.mval); | |
213 | break; | |
214 | case FcOpCharSet: | |
215 | FcCharSetDestroy (e->u.cval); | |
216 | break; | |
217 | case FcOpBool: | |
218 | break; | |
219 | case FcOpField: | |
220 | break; | |
221 | case FcOpConst: | |
222 | FcStrFree (e->u.constant); | |
223 | break; | |
224 | case FcOpAssign: | |
225 | case FcOpAssignReplace: | |
226 | case FcOpPrepend: | |
227 | case FcOpPrependFirst: | |
228 | case FcOpAppend: | |
229 | case FcOpAppendLast: | |
230 | break; | |
231 | case FcOpOr: | |
232 | case FcOpAnd: | |
233 | case FcOpEqual: | |
234 | case FcOpNotEqual: | |
235 | case FcOpLess: | |
236 | case FcOpLessEqual: | |
237 | case FcOpMore: | |
238 | case FcOpMoreEqual: | |
239 | case FcOpContains: | |
240 | case FcOpListing: | |
241 | case FcOpNotContains: | |
242 | case FcOpPlus: | |
243 | case FcOpMinus: | |
244 | case FcOpTimes: | |
245 | case FcOpDivide: | |
246 | case FcOpQuest: | |
247 | case FcOpComma: | |
248 | FcExprDestroy (e->u.tree.right); | |
249 | /* fall through */ | |
250 | case FcOpNot: | |
251 | case FcOpFloor: | |
252 | case FcOpCeil: | |
253 | case FcOpRound: | |
254 | case FcOpTrunc: | |
255 | FcExprDestroy (e->u.tree.left); | |
256 | break; | |
257 | case FcOpNil: | |
258 | case FcOpInvalid: | |
259 | break; | |
260 | } | |
261 | FcMemFree (FC_MEM_EXPR, sizeof (FcExpr)); | |
262 | free (e); | |
263 | } | |
264 | ||
265 | void | |
266 | FcEditDestroy (FcEdit *e) | |
267 | { | |
268 | if (e->next) | |
269 | FcEditDestroy (e->next); | |
270 | if (e->expr) | |
271 | FcExprDestroy (e->expr); | |
272 | free (e); | |
273 | } | |
274 | ||
275 | char * | |
276 | FcConfigSaveField (const char *field) | |
277 | { | |
278 | return (char *) FcStrCopy ((FcChar8 *) field); | |
279 | } | |
280 | ||
281 | typedef enum _FcElement { | |
282 | FcElementNone, | |
283 | FcElementFontconfig, | |
284 | FcElementDir, | |
285 | FcElementCacheDir, | |
286 | FcElementCache, | |
287 | FcElementInclude, | |
288 | FcElementConfig, | |
289 | FcElementMatch, | |
290 | FcElementAlias, | |
291 | ||
292 | FcElementBlank, | |
293 | FcElementRescan, | |
294 | ||
295 | FcElementPrefer, | |
296 | FcElementAccept, | |
297 | FcElementDefault, | |
298 | FcElementFamily, | |
299 | ||
300 | FcElementSelectfont, | |
301 | FcElementAcceptfont, | |
302 | FcElementRejectfont, | |
303 | FcElementGlob, | |
304 | FcElementPattern, | |
305 | FcElementPatelt, | |
306 | ||
307 | FcElementTest, | |
308 | FcElementEdit, | |
309 | FcElementInt, | |
310 | FcElementDouble, | |
311 | FcElementString, | |
312 | FcElementMatrix, | |
313 | FcElementBool, | |
314 | FcElementCharset, | |
315 | FcElementName, | |
316 | FcElementConst, | |
317 | FcElementOr, | |
318 | FcElementAnd, | |
319 | FcElementEq, | |
320 | FcElementNotEq, | |
321 | FcElementLess, | |
322 | FcElementLessEq, | |
323 | FcElementMore, | |
324 | FcElementMoreEq, | |
325 | FcElementContains, | |
326 | FcElementNotContains, | |
327 | FcElementPlus, | |
328 | FcElementMinus, | |
329 | FcElementTimes, | |
330 | FcElementDivide, | |
331 | FcElementNot, | |
332 | FcElementIf, | |
333 | FcElementFloor, | |
334 | FcElementCeil, | |
335 | FcElementRound, | |
336 | FcElementTrunc, | |
337 | FcElementUnknown | |
338 | } FcElement; | |
339 | ||
340 | static const struct { | |
341 | const char name[16]; | |
342 | FcElement element; | |
343 | } fcElementMap[] = { | |
344 | { "fontconfig", FcElementFontconfig }, | |
345 | { "dir", FcElementDir }, | |
346 | { "cachedir", FcElementCacheDir }, | |
347 | { "cache", FcElementCache }, | |
348 | { "include", FcElementInclude }, | |
349 | { "config", FcElementConfig }, | |
350 | { "match", FcElementMatch }, | |
351 | { "alias", FcElementAlias }, | |
352 | ||
353 | { "blank", FcElementBlank }, | |
354 | { "rescan", FcElementRescan }, | |
355 | ||
356 | { "prefer", FcElementPrefer }, | |
357 | { "accept", FcElementAccept }, | |
358 | { "default", FcElementDefault }, | |
359 | { "family", FcElementFamily }, | |
360 | ||
361 | { "selectfont", FcElementSelectfont }, | |
362 | { "acceptfont", FcElementAcceptfont }, | |
363 | { "rejectfont", FcElementRejectfont }, | |
364 | { "glob", FcElementGlob }, | |
365 | { "pattern", FcElementPattern }, | |
366 | { "patelt", FcElementPatelt }, | |
367 | ||
368 | { "test", FcElementTest }, | |
369 | { "edit", FcElementEdit }, | |
370 | { "int", FcElementInt }, | |
371 | { "double", FcElementDouble }, | |
372 | { "string", FcElementString }, | |
373 | { "matrix", FcElementMatrix }, | |
374 | { "bool", FcElementBool }, | |
375 | { "charset", FcElementCharset }, | |
376 | { "name", FcElementName }, | |
377 | { "const", FcElementConst }, | |
378 | { "or", FcElementOr }, | |
379 | { "and", FcElementAnd }, | |
380 | { "eq", FcElementEq }, | |
381 | { "not_eq", FcElementNotEq }, | |
382 | { "less", FcElementLess }, | |
383 | { "less_eq", FcElementLessEq }, | |
384 | { "more", FcElementMore }, | |
385 | { "more_eq", FcElementMoreEq }, | |
386 | { "contains", FcElementContains }, | |
387 | { "not_contains", FcElementNotContains }, | |
388 | { "plus", FcElementPlus }, | |
389 | { "minus", FcElementMinus }, | |
390 | { "times", FcElementTimes }, | |
391 | { "divide", FcElementDivide }, | |
392 | { "not", FcElementNot }, | |
393 | { "if", FcElementIf }, | |
394 | { "floor", FcElementFloor }, | |
395 | { "ceil", FcElementCeil }, | |
396 | { "round", FcElementRound }, | |
397 | { "trunc", FcElementTrunc }, | |
398 | }; | |
399 | #define NUM_ELEMENT_MAPS (int) (sizeof fcElementMap / sizeof fcElementMap[0]) | |
400 | ||
401 | static FcElement | |
402 | FcElementMap (const XML_Char *name) | |
403 | { | |
404 | ||
405 | int i; | |
406 | for (i = 0; i < NUM_ELEMENT_MAPS; i++) | |
407 | if (!strcmp ((char *) name, fcElementMap[i].name)) | |
408 | return fcElementMap[i].element; | |
409 | return FcElementUnknown; | |
410 | } | |
411 | ||
412 | typedef struct _FcPStack { | |
413 | struct _FcPStack *prev; | |
414 | FcElement element; | |
415 | FcChar8 **attr; | |
416 | FcStrBuf str; | |
417 | } FcPStack; | |
418 | ||
419 | typedef enum _FcVStackTag { | |
420 | FcVStackNone, | |
421 | ||
422 | FcVStackString, | |
423 | FcVStackFamily, | |
424 | FcVStackField, | |
425 | FcVStackConstant, | |
426 | FcVStackGlob, | |
427 | FcVStackPattern, | |
428 | ||
429 | FcVStackPrefer, | |
430 | FcVStackAccept, | |
431 | FcVStackDefault, | |
432 | ||
433 | FcVStackInteger, | |
434 | FcVStackDouble, | |
435 | FcVStackMatrix, | |
436 | FcVStackBool, | |
437 | ||
438 | FcVStackTest, | |
439 | FcVStackExpr, | |
440 | FcVStackEdit | |
441 | } FcVStackTag; | |
442 | ||
443 | typedef struct _FcVStack { | |
444 | struct _FcVStack *prev; | |
445 | FcPStack *pstack; /* related parse element */ | |
446 | FcVStackTag tag; | |
447 | union { | |
448 | FcChar8 *string; | |
449 | ||
450 | int integer; | |
451 | double _double; | |
452 | FcMatrix *matrix; | |
453 | FcBool bool; | |
454 | ||
455 | FcTest *test; | |
456 | FcQual qual; | |
457 | FcOp op; | |
458 | FcExpr *expr; | |
459 | FcEdit *edit; | |
460 | ||
461 | FcPattern *pattern; | |
462 | } u; | |
463 | } FcVStack; | |
464 | ||
465 | typedef struct _FcConfigParse { | |
466 | FcPStack *pstack; | |
467 | FcVStack *vstack; | |
468 | FcBool error; | |
469 | const FcChar8 *name; | |
470 | FcConfig *config; | |
471 | XML_Parser parser; | |
472 | } FcConfigParse; | |
473 | ||
474 | typedef enum _FcConfigSeverity { | |
475 | FcSevereInfo, FcSevereWarning, FcSevereError | |
476 | } FcConfigSeverity; | |
477 | ||
478 | static void | |
479 | FcConfigMessage (FcConfigParse *parse, FcConfigSeverity severe, const char *fmt, ...) | |
480 | { | |
481 | const char *s = "unknown"; | |
482 | va_list args; | |
483 | ||
484 | va_start (args, fmt); | |
485 | ||
486 | switch (severe) { | |
487 | case FcSevereInfo: s = "info"; break; | |
488 | case FcSevereWarning: s = "warning"; break; | |
489 | case FcSevereError: s = "error"; break; | |
490 | } | |
491 | if (parse) | |
492 | { | |
493 | if (parse->name) | |
494 | fprintf (stderr, "Fontconfig %s: \"%s\", line %d: ", s, | |
495 | parse->name, (int)XML_GetCurrentLineNumber (parse->parser)); | |
496 | else | |
497 | fprintf (stderr, "Fontconfig %s: line %d: ", s, | |
498 | (int)XML_GetCurrentLineNumber (parse->parser)); | |
499 | if (severe >= FcSevereError) | |
500 | parse->error = FcTrue; | |
501 | } | |
502 | else | |
503 | fprintf (stderr, "Fontconfig %s: ", s); | |
504 | vfprintf (stderr, fmt, args); | |
505 | fprintf (stderr, "\n"); | |
506 | va_end (args); | |
507 | } | |
508 | ||
509 | ||
510 | static const char * | |
511 | FcTypeName (FcType type) | |
512 | { | |
513 | switch (type) { | |
514 | case FcTypeVoid: | |
515 | return "void"; | |
516 | case FcTypeInteger: | |
517 | case FcTypeDouble: | |
518 | return "number"; | |
519 | case FcTypeString: | |
520 | return "string"; | |
521 | case FcTypeBool: | |
522 | return "bool"; | |
523 | case FcTypeMatrix: | |
524 | return "matrix"; | |
525 | case FcTypeCharSet: | |
526 | return "charset"; | |
527 | case FcTypeFTFace: | |
528 | return "FT_Face"; | |
529 | case FcTypeLangSet: | |
530 | return "langset"; | |
531 | default: | |
532 | return "unknown"; | |
533 | } | |
534 | } | |
535 | ||
536 | static void | |
537 | FcTypecheckValue (FcConfigParse *parse, FcType value, FcType type) | |
538 | { | |
539 | if (value == FcTypeInteger) | |
540 | value = FcTypeDouble; | |
541 | if (type == FcTypeInteger) | |
542 | type = FcTypeDouble; | |
543 | if (value != type) | |
544 | { | |
545 | if ((value == FcTypeLangSet && type == FcTypeString) || | |
546 | (value == FcTypeString && type == FcTypeLangSet)) | |
547 | return; | |
548 | if (type == (FcType) -1) | |
549 | return; | |
550 | FcConfigMessage (parse, FcSevereWarning, "saw %s, expected %s", | |
551 | FcTypeName (value), FcTypeName (type)); | |
552 | } | |
553 | } | |
554 | ||
555 | static void | |
556 | FcTypecheckExpr (FcConfigParse *parse, FcExpr *expr, FcType type) | |
557 | { | |
558 | const FcObjectType *o; | |
559 | const FcConstant *c; | |
560 | ||
561 | switch (expr->op) { | |
562 | case FcOpInteger: | |
563 | case FcOpDouble: | |
564 | FcTypecheckValue (parse, FcTypeDouble, type); | |
565 | break; | |
566 | case FcOpString: | |
567 | FcTypecheckValue (parse, FcTypeString, type); | |
568 | break; | |
569 | case FcOpMatrix: | |
570 | FcTypecheckValue (parse, FcTypeMatrix, type); | |
571 | break; | |
572 | case FcOpBool: | |
573 | FcTypecheckValue (parse, FcTypeBool, type); | |
574 | break; | |
575 | case FcOpCharSet: | |
576 | FcTypecheckValue (parse, FcTypeCharSet, type); | |
577 | break; | |
578 | case FcOpNil: | |
579 | break; | |
580 | case FcOpField: | |
581 | o = FcNameGetObjectType (FcObjectName (expr->u.object)); | |
582 | if (o) | |
583 | FcTypecheckValue (parse, o->type, type); | |
584 | break; | |
585 | case FcOpConst: | |
586 | c = FcNameGetConstant (expr->u.constant); | |
587 | if (c) | |
588 | { | |
589 | o = FcNameGetObjectType (c->object); | |
590 | if (o) | |
591 | FcTypecheckValue (parse, o->type, type); | |
592 | } | |
593 | else | |
594 | FcConfigMessage (parse, FcSevereWarning, | |
595 | "invalid constant used : %s", | |
596 | expr->u.constant); | |
597 | break; | |
598 | case FcOpQuest: | |
599 | FcTypecheckExpr (parse, expr->u.tree.left, FcTypeBool); | |
600 | FcTypecheckExpr (parse, expr->u.tree.right->u.tree.left, type); | |
601 | FcTypecheckExpr (parse, expr->u.tree.right->u.tree.right, type); | |
602 | break; | |
603 | case FcOpAssign: | |
604 | case FcOpAssignReplace: | |
605 | break; | |
606 | case FcOpEqual: | |
607 | case FcOpNotEqual: | |
608 | case FcOpLess: | |
609 | case FcOpLessEqual: | |
610 | case FcOpMore: | |
611 | case FcOpMoreEqual: | |
612 | case FcOpContains: | |
613 | case FcOpNotContains: | |
614 | case FcOpListing: | |
615 | FcTypecheckValue (parse, FcTypeBool, type); | |
616 | break; | |
617 | case FcOpComma: | |
618 | case FcOpOr: | |
619 | case FcOpAnd: | |
620 | case FcOpPlus: | |
621 | case FcOpMinus: | |
622 | case FcOpTimes: | |
623 | case FcOpDivide: | |
624 | FcTypecheckExpr (parse, expr->u.tree.left, type); | |
625 | FcTypecheckExpr (parse, expr->u.tree.right, type); | |
626 | break; | |
627 | case FcOpNot: | |
628 | FcTypecheckValue (parse, FcTypeBool, type); | |
629 | FcTypecheckExpr (parse, expr->u.tree.left, FcTypeBool); | |
630 | break; | |
631 | case FcOpFloor: | |
632 | case FcOpCeil: | |
633 | case FcOpRound: | |
634 | case FcOpTrunc: | |
635 | FcTypecheckValue (parse, FcTypeDouble, type); | |
636 | FcTypecheckExpr (parse, expr->u.tree.left, FcTypeDouble); | |
637 | break; | |
638 | default: | |
639 | break; | |
640 | } | |
641 | } | |
642 | ||
643 | static FcTest * | |
644 | FcTestCreate (FcConfigParse *parse, | |
645 | FcMatchKind kind, | |
646 | FcQual qual, | |
647 | const FcChar8 *field, | |
648 | FcOp compare, | |
649 | FcExpr *expr) | |
650 | { | |
651 | FcTest *test = (FcTest *) malloc (sizeof (FcTest)); | |
652 | ||
653 | if (test) | |
654 | { | |
655 | const FcObjectType *o; | |
656 | ||
657 | FcMemAlloc (FC_MEM_TEST, sizeof (FcTest)); | |
658 | test->next = 0; | |
659 | test->kind = kind; | |
660 | test->qual = qual; | |
661 | test->object = FcObjectFromName ((const char *) field); | |
662 | test->op = compare; | |
663 | test->expr = expr; | |
664 | o = FcNameGetObjectType (FcObjectName (test->object)); | |
665 | if (o) | |
666 | FcTypecheckExpr (parse, expr, o->type); | |
667 | } | |
668 | return test; | |
669 | } | |
670 | ||
671 | static FcEdit * | |
672 | FcEditCreate (FcConfigParse *parse, | |
673 | FcObject object, | |
674 | FcOp op, | |
675 | FcExpr *expr, | |
676 | FcValueBinding binding) | |
677 | { | |
678 | FcEdit *e = (FcEdit *) malloc (sizeof (FcEdit)); | |
679 | ||
680 | if (e) | |
681 | { | |
682 | const FcObjectType *o; | |
683 | ||
684 | e->next = 0; | |
685 | e->object = object; | |
686 | e->op = op; | |
687 | e->expr = expr; | |
688 | e->binding = binding; | |
689 | o = FcNameGetObjectType (FcObjectName (e->object)); | |
690 | if (o) | |
691 | FcTypecheckExpr (parse, expr, o->type); | |
692 | } | |
693 | return e; | |
694 | } | |
695 | ||
696 | static void | |
697 | FcVStackPush (FcConfigParse *parse, FcVStack *vstack) | |
698 | { | |
699 | vstack->prev = parse->vstack; | |
700 | vstack->pstack = parse->pstack ? parse->pstack->prev : 0; | |
701 | parse->vstack = vstack; | |
702 | } | |
703 | ||
704 | static FcVStack * | |
705 | FcVStackCreate (void) | |
706 | { | |
707 | FcVStack *new; | |
708 | ||
709 | new = malloc (sizeof (FcVStack)); | |
710 | if (!new) | |
711 | return 0; | |
712 | FcMemAlloc (FC_MEM_VSTACK, sizeof (FcVStack)); | |
713 | new->tag = FcVStackNone; | |
714 | new->prev = 0; | |
715 | return new; | |
716 | } | |
717 | ||
718 | static void | |
719 | FcVStackDestroy (FcVStack *vstack) | |
720 | { | |
721 | FcVStack *prev; | |
722 | ||
723 | for (; vstack; vstack = prev) | |
724 | { | |
725 | prev = vstack->prev; | |
726 | switch (vstack->tag) { | |
727 | case FcVStackNone: | |
728 | break; | |
729 | case FcVStackString: | |
730 | case FcVStackFamily: | |
731 | case FcVStackField: | |
732 | case FcVStackConstant: | |
733 | case FcVStackGlob: | |
734 | FcStrFree (vstack->u.string); | |
735 | break; | |
736 | case FcVStackPattern: | |
737 | FcPatternDestroy (vstack->u.pattern); | |
738 | break; | |
739 | case FcVStackInteger: | |
740 | case FcVStackDouble: | |
741 | break; | |
742 | case FcVStackMatrix: | |
743 | FcMatrixFree (vstack->u.matrix); | |
744 | break; | |
745 | case FcVStackBool: | |
746 | break; | |
747 | case FcVStackTest: | |
748 | FcTestDestroy (vstack->u.test); | |
749 | break; | |
750 | case FcVStackExpr: | |
751 | case FcVStackPrefer: | |
752 | case FcVStackAccept: | |
753 | case FcVStackDefault: | |
754 | FcExprDestroy (vstack->u.expr); | |
755 | break; | |
756 | case FcVStackEdit: | |
757 | FcEditDestroy (vstack->u.edit); | |
758 | break; | |
759 | } | |
760 | FcMemFree (FC_MEM_VSTACK, sizeof (FcVStack)); | |
761 | free (vstack); | |
762 | } | |
763 | } | |
764 | ||
765 | static FcBool | |
766 | FcVStackPushString (FcConfigParse *parse, FcVStackTag tag, FcChar8 *string) | |
767 | { | |
768 | FcVStack *vstack = FcVStackCreate (); | |
769 | if (!vstack) | |
770 | return FcFalse; | |
771 | vstack->u.string = string; | |
772 | vstack->tag = tag; | |
773 | FcVStackPush (parse, vstack); | |
774 | return FcTrue; | |
775 | } | |
776 | ||
777 | static FcBool | |
778 | FcVStackPushInteger (FcConfigParse *parse, int integer) | |
779 | { | |
780 | FcVStack *vstack = FcVStackCreate (); | |
781 | if (!vstack) | |
782 | return FcFalse; | |
783 | vstack->u.integer = integer; | |
784 | vstack->tag = FcVStackInteger; | |
785 | FcVStackPush (parse, vstack); | |
786 | return FcTrue; | |
787 | } | |
788 | ||
789 | static FcBool | |
790 | FcVStackPushDouble (FcConfigParse *parse, double _double) | |
791 | { | |
792 | FcVStack *vstack = FcVStackCreate (); | |
793 | if (!vstack) | |
794 | return FcFalse; | |
795 | vstack->u._double = _double; | |
796 | vstack->tag = FcVStackDouble; | |
797 | FcVStackPush (parse, vstack); | |
798 | return FcTrue; | |
799 | } | |
800 | ||
801 | static FcBool | |
802 | FcVStackPushMatrix (FcConfigParse *parse, FcMatrix *matrix) | |
803 | { | |
804 | FcVStack *vstack = FcVStackCreate (); | |
805 | if (!vstack) | |
806 | return FcFalse; | |
807 | matrix = FcMatrixCopy (matrix); | |
808 | if (!matrix) | |
809 | { | |
810 | FcVStackDestroy (vstack); | |
811 | return FcFalse; | |
812 | } | |
813 | vstack->u.matrix = matrix; | |
814 | vstack->tag = FcVStackMatrix; | |
815 | FcVStackPush (parse, vstack); | |
816 | return FcTrue; | |
817 | } | |
818 | ||
819 | static FcBool | |
820 | FcVStackPushBool (FcConfigParse *parse, FcBool bool) | |
821 | { | |
822 | FcVStack *vstack = FcVStackCreate (); | |
823 | if (!vstack) | |
824 | return FcFalse; | |
825 | vstack->u.bool = bool; | |
826 | vstack->tag = FcVStackBool; | |
827 | FcVStackPush (parse, vstack); | |
828 | return FcTrue; | |
829 | } | |
830 | ||
831 | static FcBool | |
832 | FcVStackPushTest (FcConfigParse *parse, FcTest *test) | |
833 | { | |
834 | FcVStack *vstack = FcVStackCreate (); | |
835 | if (!vstack) | |
836 | return FcFalse; | |
837 | vstack->u.test = test; | |
838 | vstack->tag = FcVStackTest; | |
839 | FcVStackPush (parse, vstack); | |
840 | return FcTrue; | |
841 | } | |
842 | ||
843 | static FcBool | |
844 | FcVStackPushExpr (FcConfigParse *parse, FcVStackTag tag, FcExpr *expr) | |
845 | { | |
846 | FcVStack *vstack = FcVStackCreate (); | |
847 | if (!vstack) | |
848 | return FcFalse; | |
849 | vstack->u.expr = expr; | |
850 | vstack->tag = tag; | |
851 | FcVStackPush (parse, vstack); | |
852 | return FcTrue; | |
853 | } | |
854 | ||
855 | static FcBool | |
856 | FcVStackPushEdit (FcConfigParse *parse, FcEdit *edit) | |
857 | { | |
858 | FcVStack *vstack = FcVStackCreate (); | |
859 | if (!vstack) | |
860 | return FcFalse; | |
861 | vstack->u.edit = edit; | |
862 | vstack->tag = FcVStackEdit; | |
863 | FcVStackPush (parse, vstack); | |
864 | return FcTrue; | |
865 | } | |
866 | ||
867 | static FcBool | |
868 | FcVStackPushPattern (FcConfigParse *parse, FcPattern *pattern) | |
869 | { | |
870 | FcVStack *vstack = FcVStackCreate (); | |
871 | if (!vstack) | |
872 | return FcFalse; | |
873 | vstack->u.pattern = pattern; | |
874 | vstack->tag = FcVStackPattern; | |
875 | FcVStackPush (parse, vstack); | |
876 | return FcTrue; | |
877 | } | |
878 | ||
879 | static FcVStack * | |
880 | FcVStackFetch (FcConfigParse *parse, int off) | |
881 | { | |
882 | FcVStack *vstack; | |
883 | ||
884 | for (vstack = parse->vstack; vstack && off-- > 0; vstack = vstack->prev); | |
885 | return vstack; | |
886 | } | |
887 | ||
888 | static void | |
889 | FcVStackClear (FcConfigParse *parse) | |
890 | { | |
891 | while (parse->vstack && parse->vstack->pstack == parse->pstack) | |
892 | { | |
893 | FcVStack *vstack = parse->vstack; | |
894 | parse->vstack = vstack->prev; | |
895 | vstack->prev = 0; | |
896 | FcVStackDestroy (vstack); | |
897 | } | |
898 | } | |
899 | ||
900 | static FcVStack * | |
901 | FcVStackPop (FcConfigParse *parse) | |
902 | { | |
903 | FcVStack *vstack = parse->vstack; | |
904 | ||
905 | if (!vstack || vstack->pstack != parse->pstack) | |
906 | return 0; | |
907 | parse->vstack = vstack->prev; | |
908 | vstack->prev = 0; | |
909 | return vstack; | |
910 | } | |
911 | ||
912 | static int | |
913 | FcVStackElements (FcConfigParse *parse) | |
914 | { | |
915 | int h = 0; | |
916 | FcVStack *vstack = parse->vstack; | |
917 | while (vstack && vstack->pstack == parse->pstack) | |
918 | { | |
919 | h++; | |
920 | vstack = vstack->prev; | |
921 | } | |
922 | return h; | |
923 | } | |
924 | ||
925 | static FcChar8 ** | |
926 | FcConfigSaveAttr (const XML_Char **attr) | |
927 | { | |
928 | int slen; | |
929 | int i; | |
930 | FcChar8 **new; | |
931 | FcChar8 *s; | |
932 | ||
933 | if (!attr) | |
934 | return 0; | |
935 | slen = 0; | |
936 | for (i = 0; attr[i]; i++) | |
937 | slen += strlen ((char *) attr[i]) + 1; | |
938 | new = malloc ((i + 1) * sizeof (FcChar8 *) + slen); | |
939 | if (!new) | |
940 | return 0; | |
941 | FcMemAlloc (FC_MEM_ATTR, 1); /* size is too expensive */ | |
942 | s = (FcChar8 *) (new + (i + 1)); | |
943 | for (i = 0; attr[i]; i++) | |
944 | { | |
945 | new[i] = s; | |
946 | strcpy ((char *) s, (char *) attr[i]); | |
947 | s += strlen ((char *) s) + 1; | |
948 | } | |
949 | new[i] = 0; | |
950 | return new; | |
951 | } | |
952 | ||
953 | static FcBool | |
954 | FcPStackPush (FcConfigParse *parse, FcElement element, const XML_Char **attr) | |
955 | { | |
956 | FcPStack *new = malloc (sizeof (FcPStack)); | |
957 | ||
958 | if (!new) | |
959 | return FcFalse; | |
960 | FcMemAlloc (FC_MEM_PSTACK, sizeof (FcPStack)); | |
961 | new->prev = parse->pstack; | |
962 | new->element = element; | |
963 | if (attr) | |
964 | { | |
965 | new->attr = FcConfigSaveAttr (attr); | |
966 | if (!new->attr) | |
967 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
968 | } | |
969 | else | |
970 | new->attr = 0; | |
971 | FcStrBufInit (&new->str, 0, 0); | |
972 | parse->pstack = new; | |
973 | return FcTrue; | |
974 | } | |
975 | ||
976 | static FcBool | |
977 | FcPStackPop (FcConfigParse *parse) | |
978 | { | |
979 | FcPStack *old; | |
980 | ||
981 | if (!parse->pstack) | |
982 | { | |
983 | FcConfigMessage (parse, FcSevereError, "mismatching element"); | |
984 | return FcFalse; | |
985 | } | |
986 | FcVStackClear (parse); | |
987 | old = parse->pstack; | |
988 | parse->pstack = old->prev; | |
989 | FcStrBufDestroy (&old->str); | |
990 | if (old->attr) | |
991 | { | |
992 | FcMemFree (FC_MEM_ATTR, 1); /* size is to expensive */ | |
993 | free (old->attr); | |
994 | } | |
995 | FcMemFree (FC_MEM_PSTACK, sizeof (FcPStack)); | |
996 | free (old); | |
997 | return FcTrue; | |
998 | } | |
999 | ||
1000 | static FcBool | |
1001 | FcConfigInit (FcConfigParse *parse, const FcChar8 *name, FcConfig *config, XML_Parser parser) | |
1002 | { | |
1003 | parse->pstack = 0; | |
1004 | parse->vstack = 0; | |
1005 | parse->error = FcFalse; | |
1006 | parse->name = name; | |
1007 | parse->config = config; | |
1008 | parse->parser = parser; | |
1009 | return FcTrue; | |
1010 | } | |
1011 | ||
1012 | static void | |
1013 | FcConfigCleanup (FcConfigParse *parse) | |
1014 | { | |
1015 | while (parse->pstack) | |
1016 | FcPStackPop (parse); | |
1017 | } | |
1018 | ||
1019 | static const FcChar8 * | |
1020 | FcConfigGetAttribute (FcConfigParse *parse, const char *attr) | |
1021 | { | |
1022 | FcChar8 **attrs; | |
1023 | if (!parse->pstack) | |
1024 | return 0; | |
1025 | ||
1026 | attrs = parse->pstack->attr; | |
1027 | if (!attrs) | |
1028 | return 0; | |
1029 | ||
1030 | while (*attrs) | |
1031 | { | |
1032 | if (!strcmp ((char *) *attrs, attr)) | |
1033 | return attrs[1]; | |
1034 | attrs += 2; | |
1035 | } | |
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | static void | |
1040 | FcStartElement(void *userData, const XML_Char *name, const XML_Char **attr) | |
1041 | { | |
1042 | FcConfigParse *parse = userData; | |
1043 | FcElement element; | |
1044 | ||
1045 | element = FcElementMap (name); | |
1046 | if (element == FcElementUnknown) | |
1047 | FcConfigMessage (parse, FcSevereWarning, "unknown element \"%s\"", name); | |
1048 | ||
1049 | if (!FcPStackPush (parse, element, attr)) | |
1050 | { | |
1051 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1052 | return; | |
1053 | } | |
1054 | return; | |
1055 | } | |
1056 | ||
1057 | static void | |
1058 | FcParseBlank (FcConfigParse *parse) | |
1059 | { | |
1060 | int n = FcVStackElements (parse); | |
1061 | while (n-- > 0) | |
1062 | { | |
1063 | FcVStack *v = FcVStackFetch (parse, n); | |
1064 | if (v->tag != FcVStackInteger) | |
1065 | FcConfigMessage (parse, FcSevereError, "non-integer blank"); | |
1066 | else | |
1067 | { | |
1068 | if (!parse->config->blanks) | |
1069 | { | |
1070 | parse->config->blanks = FcBlanksCreate (); | |
1071 | if (!parse->config->blanks) | |
1072 | { | |
1073 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1074 | break; | |
1075 | } | |
1076 | } | |
1077 | if (!FcBlanksAdd (parse->config->blanks, v->u.integer)) | |
1078 | { | |
1079 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1080 | break; | |
1081 | } | |
1082 | } | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | static void | |
1087 | FcParseRescan (FcConfigParse *parse) | |
1088 | { | |
1089 | int n = FcVStackElements (parse); | |
1090 | while (n-- > 0) | |
1091 | { | |
1092 | FcVStack *v = FcVStackFetch (parse, n); | |
1093 | if (v->tag != FcVStackInteger) | |
1094 | FcConfigMessage (parse, FcSevereWarning, "non-integer rescan"); | |
1095 | else | |
1096 | parse->config->rescanInterval = v->u.integer; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | static void | |
1101 | FcParseInt (FcConfigParse *parse) | |
1102 | { | |
1103 | FcChar8 *s, *end; | |
1104 | int l; | |
1105 | ||
1106 | if (!parse->pstack) | |
1107 | return; | |
1108 | s = FcStrBufDone (&parse->pstack->str); | |
1109 | if (!s) | |
1110 | { | |
1111 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1112 | return; | |
1113 | } | |
1114 | end = 0; | |
1115 | l = (int) strtol ((char *) s, (char **)&end, 0); | |
1116 | if (end != s + strlen ((char *) s)) | |
1117 | FcConfigMessage (parse, FcSevereError, "\"%s\": not a valid integer", s); | |
1118 | else | |
1119 | FcVStackPushInteger (parse, l); | |
1120 | FcStrFree (s); | |
1121 | } | |
1122 | ||
1123 | /* | |
1124 | * idea copied from glib g_ascii_strtod with | |
1125 | * permission of the author (Alexander Larsson) | |
1126 | */ | |
1127 | ||
1128 | #include <locale.h> | |
1129 | ||
1130 | static double | |
1131 | FcStrtod (char *s, char **end) | |
1132 | { | |
1133 | struct lconv *locale_data; | |
1134 | char *dot; | |
1135 | double v; | |
1136 | ||
1137 | /* | |
1138 | * Have to swap the decimal point to match the current locale | |
1139 | * if that locale doesn't use 0x2e | |
1140 | */ | |
1141 | if ((dot = strchr (s, 0x2e)) && | |
1142 | (locale_data = localeconv ()) && | |
1143 | (locale_data->decimal_point[0] != 0x2e || | |
1144 | locale_data->decimal_point[1] != 0)) | |
1145 | { | |
1146 | char buf[128]; | |
1147 | int slen = strlen (s); | |
1148 | int dlen = strlen (locale_data->decimal_point); | |
1149 | ||
1150 | if (slen + dlen > (int) sizeof (buf)) | |
1151 | { | |
1152 | if (end) | |
1153 | *end = s; | |
1154 | v = 0; | |
1155 | } | |
1156 | else | |
1157 | { | |
1158 | char *buf_end; | |
1159 | /* mantissa */ | |
1160 | strncpy (buf, s, dot - s); | |
1161 | /* decimal point */ | |
1162 | strcpy (buf + (dot - s), locale_data->decimal_point); | |
1163 | /* rest of number */ | |
1164 | strcpy (buf + (dot - s) + dlen, dot + 1); | |
1165 | buf_end = 0; | |
1166 | v = strtod (buf, &buf_end); | |
1167 | if (buf_end) { | |
1168 | buf_end = s + (buf_end - buf); | |
1169 | if (buf_end > dot) | |
1170 | buf_end -= dlen - 1; | |
1171 | } | |
1172 | if (end) | |
1173 | *end = buf_end; | |
1174 | } | |
1175 | } | |
1176 | else | |
1177 | v = strtod (s, end); | |
1178 | return v; | |
1179 | } | |
1180 | ||
1181 | static void | |
1182 | FcParseDouble (FcConfigParse *parse) | |
1183 | { | |
1184 | FcChar8 *s, *end; | |
1185 | double d; | |
1186 | ||
1187 | if (!parse->pstack) | |
1188 | return; | |
1189 | s = FcStrBufDone (&parse->pstack->str); | |
1190 | if (!s) | |
1191 | { | |
1192 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1193 | return; | |
1194 | } | |
1195 | end = 0; | |
1196 | d = FcStrtod ((char *) s, (char **)&end); | |
1197 | if (end != s + strlen ((char *) s)) | |
1198 | FcConfigMessage (parse, FcSevereError, "\"%s\": not a valid double", s); | |
1199 | else | |
1200 | FcVStackPushDouble (parse, d); | |
1201 | FcStrFree (s); | |
1202 | } | |
1203 | ||
1204 | static void | |
1205 | FcParseString (FcConfigParse *parse, FcVStackTag tag) | |
1206 | { | |
1207 | FcChar8 *s; | |
1208 | ||
1209 | if (!parse->pstack) | |
1210 | return; | |
1211 | s = FcStrBufDone (&parse->pstack->str); | |
1212 | if (!s) | |
1213 | { | |
1214 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1215 | return; | |
1216 | } | |
1217 | if (!FcVStackPushString (parse, tag, s)) | |
1218 | FcStrFree (s); | |
1219 | } | |
1220 | ||
1221 | static void | |
1222 | FcParseMatrix (FcConfigParse *parse) | |
1223 | { | |
1224 | FcVStack *vstack; | |
1225 | enum { m_done, m_xx, m_xy, m_yx, m_yy } matrix_state = m_yy; | |
1226 | FcMatrix m; | |
1227 | ||
1228 | while ((vstack = FcVStackPop (parse))) | |
1229 | { | |
1230 | double v; | |
1231 | switch (vstack->tag) { | |
1232 | case FcVStackInteger: | |
1233 | v = vstack->u.integer; | |
1234 | break; | |
1235 | case FcVStackDouble: | |
1236 | v = vstack->u._double; | |
1237 | break; | |
1238 | default: | |
1239 | FcConfigMessage (parse, FcSevereError, "non-double matrix element"); | |
1240 | v = 1.0; | |
1241 | break; | |
1242 | } | |
1243 | switch (matrix_state) { | |
1244 | case m_xx: m.xx = v; break; | |
1245 | case m_xy: m.xy = v; break; | |
1246 | case m_yx: m.yx = v; break; | |
1247 | case m_yy: m.yy = v; break; | |
1248 | default: break; | |
1249 | } | |
1250 | FcVStackDestroy (vstack); | |
1251 | matrix_state--; | |
1252 | } | |
1253 | if (matrix_state != m_done) | |
1254 | FcConfigMessage (parse, FcSevereError, "wrong number of matrix elements"); | |
1255 | else | |
1256 | FcVStackPushMatrix (parse, &m); | |
1257 | } | |
1258 | ||
1259 | static FcBool | |
1260 | FcConfigLexBool (FcConfigParse *parse, const FcChar8 *bool) | |
1261 | { | |
1262 | FcBool result = FcFalse; | |
1263 | ||
1264 | if (!FcNameBool (bool, &result)) | |
1265 | FcConfigMessage (parse, FcSevereWarning, "\"%s\" is not known boolean", | |
1266 | bool); | |
1267 | return result; | |
1268 | } | |
1269 | ||
1270 | static void | |
1271 | FcParseBool (FcConfigParse *parse) | |
1272 | { | |
1273 | FcChar8 *s; | |
1274 | ||
1275 | if (!parse->pstack) | |
1276 | return; | |
1277 | s = FcStrBufDone (&parse->pstack->str); | |
1278 | if (!s) | |
1279 | { | |
1280 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1281 | return; | |
1282 | } | |
1283 | FcVStackPushBool (parse, FcConfigLexBool (parse, s)); | |
1284 | FcStrFree (s); | |
1285 | } | |
1286 | ||
1287 | static void | |
1288 | FcParseFamilies (FcConfigParse *parse, FcVStackTag tag) | |
1289 | { | |
1290 | FcVStack *vstack; | |
1291 | FcExpr *left, *expr = 0, *new; | |
1292 | ||
1293 | while ((vstack = FcVStackPop (parse))) | |
1294 | { | |
1295 | if (vstack->tag != FcVStackFamily) | |
1296 | { | |
1297 | FcConfigMessage (parse, FcSevereWarning, "non-family"); | |
1298 | FcVStackDestroy (vstack); | |
1299 | continue; | |
1300 | } | |
1301 | left = vstack->u.expr; | |
1302 | vstack->tag = FcVStackNone; | |
1303 | FcVStackDestroy (vstack); | |
1304 | if (expr) | |
1305 | { | |
1306 | new = FcExprCreateOp (left, FcOpComma, expr); | |
1307 | if (!new) | |
1308 | { | |
1309 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1310 | FcExprDestroy (left); | |
1311 | FcExprDestroy (expr); | |
1312 | break; | |
1313 | } | |
1314 | expr = new; | |
1315 | } | |
1316 | else | |
1317 | expr = left; | |
1318 | } | |
1319 | if (expr) | |
1320 | { | |
1321 | if (!FcVStackPushExpr (parse, tag, expr)) | |
1322 | { | |
1323 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1324 | FcExprDestroy (expr); | |
1325 | } | |
1326 | } | |
1327 | } | |
1328 | ||
1329 | static void | |
1330 | FcParseFamily (FcConfigParse *parse) | |
1331 | { | |
1332 | FcChar8 *s; | |
1333 | FcExpr *expr; | |
1334 | ||
1335 | if (!parse->pstack) | |
1336 | return; | |
1337 | s = FcStrBufDone (&parse->pstack->str); | |
1338 | if (!s) | |
1339 | { | |
1340 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1341 | return; | |
1342 | } | |
1343 | expr = FcExprCreateString (s); | |
1344 | FcStrFree (s); | |
1345 | if (expr) | |
1346 | FcVStackPushExpr (parse, FcVStackFamily, expr); | |
1347 | } | |
1348 | ||
1349 | static void | |
1350 | FcParseAlias (FcConfigParse *parse) | |
1351 | { | |
1352 | FcExpr *family = 0, *accept = 0, *prefer = 0, *def = 0, *new = 0; | |
1353 | FcEdit *edit = 0, *next; | |
1354 | FcVStack *vstack; | |
1355 | FcTest *test; | |
1356 | ||
1357 | while ((vstack = FcVStackPop (parse))) | |
1358 | { | |
1359 | switch (vstack->tag) { | |
1360 | case FcVStackFamily: | |
1361 | if (family) | |
1362 | { | |
1363 | new = FcExprCreateOp (vstack->u.expr, FcOpComma, family); | |
1364 | if (!new) | |
1365 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1366 | else | |
1367 | family = new; | |
1368 | } | |
1369 | else | |
1370 | new = vstack->u.expr; | |
1371 | if (new) | |
1372 | { | |
1373 | family = new; | |
1374 | vstack->tag = FcVStackNone; | |
1375 | } | |
1376 | break; | |
1377 | case FcVStackPrefer: | |
1378 | if (prefer) | |
1379 | FcExprDestroy (prefer); | |
1380 | prefer = vstack->u.expr; | |
1381 | vstack->tag = FcVStackNone; | |
1382 | break; | |
1383 | case FcVStackAccept: | |
1384 | if (accept) | |
1385 | FcExprDestroy (accept); | |
1386 | accept = vstack->u.expr; | |
1387 | vstack->tag = FcVStackNone; | |
1388 | break; | |
1389 | case FcVStackDefault: | |
1390 | if (def) | |
1391 | FcExprDestroy (def); | |
1392 | def = vstack->u.expr; | |
1393 | vstack->tag = FcVStackNone; | |
1394 | break; | |
1395 | default: | |
1396 | FcConfigMessage (parse, FcSevereWarning, "bad alias"); | |
1397 | break; | |
1398 | } | |
1399 | FcVStackDestroy (vstack); | |
1400 | } | |
1401 | if (!family) | |
1402 | { | |
1403 | FcConfigMessage (parse, FcSevereError, "missing family in alias"); | |
1404 | if (prefer) | |
1405 | FcExprDestroy (prefer); | |
1406 | if (accept) | |
1407 | FcExprDestroy (accept); | |
1408 | if (def) | |
1409 | FcExprDestroy (def); | |
1410 | return; | |
1411 | } | |
1412 | if (prefer) | |
1413 | { | |
1414 | edit = FcEditCreate (parse, | |
1415 | FC_FAMILY_OBJECT, | |
1416 | FcOpPrepend, | |
1417 | prefer, | |
1418 | FcValueBindingWeak); | |
1419 | if (edit) | |
1420 | edit->next = 0; | |
1421 | else | |
1422 | FcExprDestroy (prefer); | |
1423 | } | |
1424 | if (accept) | |
1425 | { | |
1426 | next = edit; | |
1427 | edit = FcEditCreate (parse, | |
1428 | FC_FAMILY_OBJECT, | |
1429 | FcOpAppend, | |
1430 | accept, | |
1431 | FcValueBindingWeak); | |
1432 | if (edit) | |
1433 | edit->next = next; | |
1434 | else | |
1435 | FcExprDestroy (accept); | |
1436 | } | |
1437 | if (def) | |
1438 | { | |
1439 | next = edit; | |
1440 | edit = FcEditCreate (parse, | |
1441 | FC_FAMILY_OBJECT, | |
1442 | FcOpAppendLast, | |
1443 | def, | |
1444 | FcValueBindingWeak); | |
1445 | if (edit) | |
1446 | edit->next = next; | |
1447 | else | |
1448 | FcExprDestroy (def); | |
1449 | } | |
1450 | if (edit) | |
1451 | { | |
1452 | test = FcTestCreate (parse, FcMatchPattern, | |
1453 | FcQualAny, | |
1454 | (FcChar8 *) FC_FAMILY, | |
1455 | FcOpEqual, | |
1456 | family); | |
1457 | if (test) | |
1458 | if (!FcConfigAddEdit (parse->config, test, edit, FcMatchPattern)) | |
1459 | FcTestDestroy (test); | |
1460 | } | |
1461 | else | |
1462 | FcExprDestroy (family); | |
1463 | } | |
1464 | ||
1465 | static FcExpr * | |
1466 | FcPopExpr (FcConfigParse *parse) | |
1467 | { | |
1468 | FcVStack *vstack = FcVStackPop (parse); | |
1469 | FcExpr *expr = 0; | |
1470 | if (!vstack) | |
1471 | return 0; | |
1472 | switch (vstack->tag) { | |
1473 | case FcVStackNone: | |
1474 | break; | |
1475 | case FcVStackString: | |
1476 | case FcVStackFamily: | |
1477 | expr = FcExprCreateString (vstack->u.string); | |
1478 | break; | |
1479 | case FcVStackField: | |
1480 | expr = FcExprCreateField ((char *) vstack->u.string); | |
1481 | break; | |
1482 | case FcVStackConstant: | |
1483 | expr = FcExprCreateConst (vstack->u.string); | |
1484 | break; | |
1485 | case FcVStackGlob: | |
1486 | /* XXX: What's the correct action here? (CDW) */ | |
1487 | break; | |
1488 | case FcVStackPrefer: | |
1489 | case FcVStackAccept: | |
1490 | case FcVStackDefault: | |
1491 | expr = vstack->u.expr; | |
1492 | vstack->tag = FcVStackNone; | |
1493 | break; | |
1494 | case FcVStackInteger: | |
1495 | expr = FcExprCreateInteger (vstack->u.integer); | |
1496 | break; | |
1497 | case FcVStackDouble: | |
1498 | expr = FcExprCreateDouble (vstack->u._double); | |
1499 | break; | |
1500 | case FcVStackMatrix: | |
1501 | expr = FcExprCreateMatrix (vstack->u.matrix); | |
1502 | break; | |
1503 | case FcVStackBool: | |
1504 | expr = FcExprCreateBool (vstack->u.bool); | |
1505 | break; | |
1506 | case FcVStackTest: | |
1507 | break; | |
1508 | case FcVStackExpr: | |
1509 | expr = vstack->u.expr; | |
1510 | vstack->tag = FcVStackNone; | |
1511 | break; | |
1512 | case FcVStackEdit: | |
1513 | break; | |
1514 | default: | |
1515 | break; | |
1516 | } | |
1517 | FcVStackDestroy (vstack); | |
1518 | return expr; | |
1519 | } | |
1520 | ||
1521 | /* | |
1522 | * This builds a tree of binary operations. Note | |
1523 | * that every operator is defined so that if only | |
1524 | * a single operand is contained, the value of the | |
1525 | * whole expression is the value of the operand. | |
1526 | * | |
1527 | * This code reduces in that case to returning that | |
1528 | * operand. | |
1529 | */ | |
1530 | static FcExpr * | |
1531 | FcPopBinary (FcConfigParse *parse, FcOp op) | |
1532 | { | |
1533 | FcExpr *left, *expr = 0, *new; | |
1534 | ||
1535 | while ((left = FcPopExpr (parse))) | |
1536 | { | |
1537 | if (expr) | |
1538 | { | |
1539 | new = FcExprCreateOp (left, op, expr); | |
1540 | if (!new) | |
1541 | { | |
1542 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1543 | FcExprDestroy (left); | |
1544 | FcExprDestroy (expr); | |
1545 | return 0; | |
1546 | } | |
1547 | expr = new; | |
1548 | } | |
1549 | else | |
1550 | expr = left; | |
1551 | } | |
1552 | return expr; | |
1553 | } | |
1554 | ||
1555 | static void | |
1556 | FcParseBinary (FcConfigParse *parse, FcOp op) | |
1557 | { | |
1558 | FcExpr *expr = FcPopBinary (parse, op); | |
1559 | if (expr) | |
1560 | FcVStackPushExpr (parse, FcVStackExpr, expr); | |
1561 | } | |
1562 | ||
1563 | /* | |
1564 | * This builds a a unary operator, it consumes only | |
1565 | * a single operand | |
1566 | */ | |
1567 | ||
1568 | static FcExpr * | |
1569 | FcPopUnary (FcConfigParse *parse, FcOp op) | |
1570 | { | |
1571 | FcExpr *operand, *new = 0; | |
1572 | ||
1573 | if ((operand = FcPopExpr (parse))) | |
1574 | { | |
1575 | new = FcExprCreateOp (operand, op, 0); | |
1576 | if (!new) | |
1577 | { | |
1578 | FcExprDestroy (operand); | |
1579 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1580 | } | |
1581 | } | |
1582 | return new; | |
1583 | } | |
1584 | ||
1585 | static void | |
1586 | FcParseUnary (FcConfigParse *parse, FcOp op) | |
1587 | { | |
1588 | FcExpr *expr = FcPopUnary (parse, op); | |
1589 | if (expr) | |
1590 | FcVStackPushExpr (parse, FcVStackExpr, expr); | |
1591 | } | |
1592 | ||
1593 | static void | |
1594 | FcParseInclude (FcConfigParse *parse) | |
1595 | { | |
1596 | FcChar8 *s; | |
1597 | const FcChar8 *i; | |
1598 | FcBool ignore_missing = FcFalse; | |
1599 | ||
1600 | s = FcStrBufDone (&parse->pstack->str); | |
1601 | if (!s) | |
1602 | { | |
1603 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1604 | return; | |
1605 | } | |
1606 | i = FcConfigGetAttribute (parse, "ignore_missing"); | |
1607 | if (i && FcConfigLexBool (parse, (FcChar8 *) i) == FcTrue) | |
1608 | ignore_missing = FcTrue; | |
1609 | if (!FcConfigParseAndLoad (parse->config, s, !ignore_missing)) | |
1610 | parse->error = FcTrue; | |
1611 | FcStrFree (s); | |
1612 | } | |
1613 | ||
1614 | typedef struct _FcOpMap { | |
1615 | char name[16]; | |
1616 | FcOp op; | |
1617 | } FcOpMap; | |
1618 | ||
1619 | static FcOp | |
1620 | FcConfigLexOp (const FcChar8 *op, const FcOpMap *map, int nmap) | |
1621 | { | |
1622 | int i; | |
1623 | ||
1624 | for (i = 0; i < nmap; i++) | |
1625 | if (!strcmp ((char *) op, map[i].name)) | |
1626 | return map[i].op; | |
1627 | return FcOpInvalid; | |
1628 | } | |
1629 | ||
1630 | static const FcOpMap fcCompareOps[] = { | |
1631 | { "eq", FcOpEqual }, | |
1632 | { "not_eq", FcOpNotEqual }, | |
1633 | { "less", FcOpLess }, | |
1634 | { "less_eq", FcOpLessEqual }, | |
1635 | { "more", FcOpMore }, | |
1636 | { "more_eq", FcOpMoreEqual }, | |
1637 | { "contains", FcOpContains }, | |
1638 | { "not_contains", FcOpNotContains } | |
1639 | }; | |
1640 | ||
1641 | #define NUM_COMPARE_OPS (int) (sizeof fcCompareOps / sizeof fcCompareOps[0]) | |
1642 | ||
1643 | static FcOp | |
1644 | FcConfigLexCompare (const FcChar8 *compare) | |
1645 | { | |
1646 | return FcConfigLexOp (compare, fcCompareOps, NUM_COMPARE_OPS); | |
1647 | } | |
1648 | ||
1649 | ||
1650 | static void | |
1651 | FcParseTest (FcConfigParse *parse) | |
1652 | { | |
1653 | const FcChar8 *kind_string; | |
1654 | FcMatchKind kind; | |
1655 | const FcChar8 *qual_string; | |
1656 | FcQual qual; | |
1657 | const FcChar8 *name; | |
1658 | const FcChar8 *compare_string; | |
1659 | FcOp compare; | |
1660 | FcExpr *expr; | |
1661 | FcTest *test; | |
1662 | ||
1663 | kind_string = FcConfigGetAttribute (parse, "target"); | |
1664 | if (!kind_string) | |
1665 | kind = FcMatchDefault; | |
1666 | else | |
1667 | { | |
1668 | if (!strcmp ((char *) kind_string, "pattern")) | |
1669 | kind = FcMatchPattern; | |
1670 | else if (!strcmp ((char *) kind_string, "font")) | |
1671 | kind = FcMatchFont; | |
1672 | else if (!strcmp ((char *) kind_string, "scan")) | |
1673 | kind = FcMatchScan; | |
1674 | else if (!strcmp ((char *) kind_string, "default")) | |
1675 | kind = FcMatchDefault; | |
1676 | else | |
1677 | { | |
1678 | FcConfigMessage (parse, FcSevereWarning, "invalid test target \"%s\"", kind_string); | |
1679 | return; | |
1680 | } | |
1681 | } | |
1682 | qual_string = FcConfigGetAttribute (parse, "qual"); | |
1683 | if (!qual_string) | |
1684 | qual = FcQualAny; | |
1685 | else | |
1686 | { | |
1687 | if (!strcmp ((char *) qual_string, "any")) | |
1688 | qual = FcQualAny; | |
1689 | else if (!strcmp ((char *) qual_string, "all")) | |
1690 | qual = FcQualAll; | |
1691 | else if (!strcmp ((char *) qual_string, "first")) | |
1692 | qual = FcQualFirst; | |
1693 | else if (!strcmp ((char *) qual_string, "not_first")) | |
1694 | qual = FcQualNotFirst; | |
1695 | else | |
1696 | { | |
1697 | FcConfigMessage (parse, FcSevereWarning, "invalid test qual \"%s\"", qual_string); | |
1698 | return; | |
1699 | } | |
1700 | } | |
1701 | name = FcConfigGetAttribute (parse, "name"); | |
1702 | if (!name) | |
1703 | { | |
1704 | FcConfigMessage (parse, FcSevereWarning, "missing test name"); | |
1705 | return; | |
1706 | } | |
1707 | compare_string = FcConfigGetAttribute (parse, "compare"); | |
1708 | if (!compare_string) | |
1709 | compare = FcOpEqual; | |
1710 | else | |
1711 | { | |
1712 | compare = FcConfigLexCompare (compare_string); | |
1713 | if (compare == FcOpInvalid) | |
1714 | { | |
1715 | FcConfigMessage (parse, FcSevereWarning, "invalid test compare \"%s\"", compare_string); | |
1716 | return; | |
1717 | } | |
1718 | } | |
1719 | expr = FcPopBinary (parse, FcOpComma); | |
1720 | if (!expr) | |
1721 | { | |
1722 | FcConfigMessage (parse, FcSevereWarning, "missing test expression"); | |
1723 | return; | |
1724 | } | |
1725 | test = FcTestCreate (parse, kind, qual, name, compare, expr); | |
1726 | if (!test) | |
1727 | { | |
1728 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1729 | return; | |
1730 | } | |
1731 | FcVStackPushTest (parse, test); | |
1732 | } | |
1733 | ||
1734 | static const FcOpMap fcModeOps[] = { | |
1735 | { "assign", FcOpAssign }, | |
1736 | { "assign_replace", FcOpAssignReplace }, | |
1737 | { "prepend", FcOpPrepend }, | |
1738 | { "prepend_first", FcOpPrependFirst }, | |
1739 | { "append", FcOpAppend }, | |
1740 | { "append_last", FcOpAppendLast }, | |
1741 | }; | |
1742 | ||
1743 | #define NUM_MODE_OPS (int) (sizeof fcModeOps / sizeof fcModeOps[0]) | |
1744 | ||
1745 | static FcOp | |
1746 | FcConfigLexMode (const FcChar8 *mode) | |
1747 | { | |
1748 | return FcConfigLexOp (mode, fcModeOps, NUM_MODE_OPS); | |
1749 | } | |
1750 | ||
1751 | static void | |
1752 | FcParseEdit (FcConfigParse *parse) | |
1753 | { | |
1754 | const FcChar8 *name; | |
1755 | const FcChar8 *mode_string; | |
1756 | const FcChar8 *binding_string; | |
1757 | FcOp mode; | |
1758 | FcValueBinding binding; | |
1759 | FcExpr *expr; | |
1760 | FcEdit *edit; | |
1761 | ||
1762 | name = FcConfigGetAttribute (parse, "name"); | |
1763 | if (!name) | |
1764 | { | |
1765 | FcConfigMessage (parse, FcSevereWarning, "missing edit name"); | |
1766 | return; | |
1767 | } | |
1768 | mode_string = FcConfigGetAttribute (parse, "mode"); | |
1769 | if (!mode_string) | |
1770 | mode = FcOpAssign; | |
1771 | else | |
1772 | { | |
1773 | mode = FcConfigLexMode (mode_string); | |
1774 | if (mode == FcOpInvalid) | |
1775 | { | |
1776 | FcConfigMessage (parse, FcSevereWarning, "invalid edit mode \"%s\"", mode_string); | |
1777 | return; | |
1778 | } | |
1779 | } | |
1780 | binding_string = FcConfigGetAttribute (parse, "binding"); | |
1781 | if (!binding_string) | |
1782 | binding = FcValueBindingWeak; | |
1783 | else | |
1784 | { | |
1785 | if (!strcmp ((char *) binding_string, "weak")) | |
1786 | binding = FcValueBindingWeak; | |
1787 | else if (!strcmp ((char *) binding_string, "strong")) | |
1788 | binding = FcValueBindingStrong; | |
1789 | else if (!strcmp ((char *) binding_string, "same")) | |
1790 | binding = FcValueBindingSame; | |
1791 | else | |
1792 | { | |
1793 | FcConfigMessage (parse, FcSevereWarning, "invalid edit binding \"%s\"", binding_string); | |
1794 | return; | |
1795 | } | |
1796 | } | |
1797 | expr = FcPopBinary (parse, FcOpComma); | |
1798 | edit = FcEditCreate (parse, FcObjectFromName ((char *) name), | |
1799 | mode, expr, binding); | |
1800 | if (!edit) | |
1801 | { | |
1802 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1803 | FcExprDestroy (expr); | |
1804 | return; | |
1805 | } | |
1806 | if (!FcVStackPushEdit (parse, edit)) | |
1807 | FcEditDestroy (edit); | |
1808 | } | |
1809 | ||
1810 | static void | |
1811 | FcParseMatch (FcConfigParse *parse) | |
1812 | { | |
1813 | const FcChar8 *kind_name; | |
1814 | FcMatchKind kind; | |
1815 | FcTest *test = 0; | |
1816 | FcEdit *edit = 0; | |
1817 | FcVStack *vstack; | |
1818 | ||
1819 | kind_name = FcConfigGetAttribute (parse, "target"); | |
1820 | if (!kind_name) | |
1821 | kind = FcMatchPattern; | |
1822 | else | |
1823 | { | |
1824 | if (!strcmp ((char *) kind_name, "pattern")) | |
1825 | kind = FcMatchPattern; | |
1826 | else if (!strcmp ((char *) kind_name, "font")) | |
1827 | kind = FcMatchFont; | |
1828 | else if (!strcmp ((char *) kind_name, "scan")) | |
1829 | kind = FcMatchScan; | |
1830 | else | |
1831 | { | |
1832 | FcConfigMessage (parse, FcSevereWarning, "invalid match target \"%s\"", kind_name); | |
1833 | return; | |
1834 | } | |
1835 | } | |
1836 | while ((vstack = FcVStackPop (parse))) | |
1837 | { | |
1838 | switch (vstack->tag) { | |
1839 | case FcVStackTest: | |
1840 | vstack->u.test->next = test; | |
1841 | test = vstack->u.test; | |
1842 | vstack->tag = FcVStackNone; | |
1843 | break; | |
1844 | case FcVStackEdit: | |
1845 | vstack->u.edit->next = edit; | |
1846 | edit = vstack->u.edit; | |
1847 | vstack->tag = FcVStackNone; | |
1848 | break; | |
1849 | default: | |
1850 | FcConfigMessage (parse, FcSevereWarning, "invalid match element"); | |
1851 | break; | |
1852 | } | |
1853 | FcVStackDestroy (vstack); | |
1854 | } | |
1855 | if (!FcConfigAddEdit (parse->config, test, edit, kind)) | |
1856 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1857 | } | |
1858 | ||
1859 | static void | |
1860 | FcParseAcceptRejectFont (FcConfigParse *parse, FcElement element) | |
1861 | { | |
1862 | FcVStack *vstack; | |
1863 | ||
1864 | while ((vstack = FcVStackPop (parse))) | |
1865 | { | |
1866 | switch (vstack->tag) { | |
1867 | case FcVStackGlob: | |
1868 | if (!FcConfigGlobAdd (parse->config, | |
1869 | vstack->u.string, | |
1870 | element == FcElementAcceptfont)) | |
1871 | { | |
1872 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1873 | } | |
1874 | break; | |
1875 | case FcVStackPattern: | |
1876 | if (!FcConfigPatternsAdd (parse->config, | |
1877 | vstack->u.pattern, | |
1878 | element == FcElementAcceptfont)) | |
1879 | { | |
1880 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1881 | } | |
1882 | else | |
1883 | vstack->tag = FcVStackNone; | |
1884 | break; | |
1885 | default: | |
1886 | FcConfigMessage (parse, FcSevereWarning, "bad font selector"); | |
1887 | break; | |
1888 | } | |
1889 | FcVStackDestroy (vstack); | |
1890 | } | |
1891 | } | |
1892 | ||
1893 | ||
1894 | static FcValue | |
1895 | FcPopValue (FcConfigParse *parse) | |
1896 | { | |
1897 | FcVStack *vstack = FcVStackPop (parse); | |
1898 | FcValue value; | |
1899 | ||
1900 | value.type = FcTypeVoid; | |
1901 | ||
1902 | if (!vstack) | |
1903 | return value; | |
1904 | ||
1905 | switch (vstack->tag) { | |
1906 | case FcVStackString: | |
1907 | value.u.s = FcStrCopy (vstack->u.string); | |
1908 | if (value.u.s) | |
1909 | value.type = FcTypeString; | |
1910 | break; | |
1911 | case FcVStackConstant: | |
1912 | if (FcNameConstant (vstack->u.string, &value.u.i)) | |
1913 | value.type = FcTypeInteger; | |
1914 | break; | |
1915 | case FcVStackInteger: | |
1916 | value.u.i = vstack->u.integer; | |
1917 | value.type = FcTypeInteger; | |
1918 | break; | |
1919 | case FcVStackDouble: | |
1920 | value.u.d = vstack->u._double; | |
1921 | value.type = FcTypeInteger; | |
1922 | break; | |
1923 | case FcVStackMatrix: | |
1924 | value.u.m = FcMatrixCopy (vstack->u.matrix); | |
1925 | if (value.u.m) | |
1926 | value.type = FcTypeMatrix; | |
1927 | break; | |
1928 | case FcVStackBool: | |
1929 | value.u.b = vstack->u.bool; | |
1930 | value.type = FcTypeBool; | |
1931 | break; | |
1932 | default: | |
1933 | FcConfigMessage (parse, FcSevereWarning, "unknown pattern element %d", | |
1934 | vstack->tag); | |
1935 | break; | |
1936 | } | |
1937 | FcVStackDestroy (vstack); | |
1938 | ||
1939 | return value; | |
1940 | } | |
1941 | ||
1942 | static void | |
1943 | FcParsePatelt (FcConfigParse *parse) | |
1944 | { | |
1945 | FcValue value; | |
1946 | FcPattern *pattern = FcPatternCreate (); | |
1947 | const char *name; | |
1948 | ||
1949 | if (!pattern) | |
1950 | { | |
1951 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1952 | return; | |
1953 | } | |
1954 | ||
1955 | name = (char *) FcConfigGetAttribute (parse, "name"); | |
1956 | if (!name) | |
1957 | { | |
1958 | FcConfigMessage (parse, FcSevereWarning, "missing pattern element name"); | |
1959 | FcPatternDestroy (pattern); | |
1960 | return; | |
1961 | } | |
1962 | ||
1963 | for (;;) | |
1964 | { | |
1965 | value = FcPopValue (parse); | |
1966 | if (value.type == FcTypeVoid) | |
1967 | break; | |
1968 | if (!FcPatternAdd (pattern, name, value, FcTrue)) | |
1969 | { | |
1970 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1971 | break; | |
1972 | } | |
1973 | } | |
1974 | ||
1975 | FcVStackPushPattern (parse, pattern); | |
1976 | } | |
1977 | ||
1978 | static void | |
1979 | FcParsePattern (FcConfigParse *parse) | |
1980 | { | |
1981 | FcVStack *vstack; | |
1982 | FcPattern *pattern = FcPatternCreate (); | |
1983 | ||
1984 | if (!pattern) | |
1985 | { | |
1986 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1987 | return; | |
1988 | } | |
1989 | ||
1990 | while ((vstack = FcVStackPop (parse))) | |
1991 | { | |
1992 | switch (vstack->tag) { | |
1993 | case FcVStackPattern: | |
1994 | if (!FcPatternAppend (pattern, vstack->u.pattern)) | |
1995 | { | |
1996 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
1997 | FcPatternDestroy (pattern); | |
1998 | return; | |
1999 | } | |
2000 | break; | |
2001 | default: | |
2002 | FcConfigMessage (parse, FcSevereWarning, "unknown pattern element"); | |
2003 | break; | |
2004 | } | |
2005 | FcVStackDestroy (vstack); | |
2006 | } | |
2007 | ||
2008 | FcVStackPushPattern (parse, pattern); | |
2009 | } | |
2010 | ||
2011 | static void | |
2012 | FcEndElement(void *userData, const XML_Char *name) | |
2013 | { | |
2014 | FcConfigParse *parse = userData; | |
2015 | FcChar8 *data; | |
2016 | ||
2017 | if (!parse->pstack) | |
2018 | return; | |
2019 | switch (parse->pstack->element) { | |
2020 | case FcElementNone: | |
2021 | break; | |
2022 | case FcElementFontconfig: | |
2023 | break; | |
2024 | case FcElementDir: | |
2025 | data = FcStrBufDone (&parse->pstack->str); | |
2026 | if (!data) | |
2027 | { | |
2028 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
2029 | break; | |
2030 | } | |
2031 | #ifdef _WIN32 | |
2032 | if (strcmp (data, "WINDOWSFONTDIR") == 0) | |
2033 | { | |
2034 | int rc; | |
2035 | FcStrFree (data); | |
2036 | data = malloc (1000); | |
2037 | if (!data) | |
2038 | { | |
2039 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
2040 | break; | |
2041 | } | |
2042 | FcMemAlloc (FC_MEM_STRING, 1000); | |
2043 | rc = GetWindowsDirectory (data, 800); | |
2044 | if (rc == 0 || rc > 800) | |
2045 | { | |
2046 | FcConfigMessage (parse, FcSevereError, "GetWindowsDirectory failed"); | |
2047 | FcStrFree (data); | |
2048 | break; | |
2049 | } | |
2050 | if (data [strlen (data) - 1] != '\\') | |
2051 | strcat (data, "\\"); | |
2052 | strcat (data, "fonts"); | |
2053 | } | |
2054 | #endif | |
2055 | if (!FcStrUsesHome (data) || FcConfigHome ()) | |
2056 | { | |
2057 | if (!FcConfigAddDir (parse->config, data)) | |
2058 | FcConfigMessage (parse, FcSevereError, "out of memory; cannot add directory %s", data); | |
2059 | } | |
2060 | FcStrFree (data); | |
2061 | break; | |
2062 | case FcElementCacheDir: | |
2063 | data = FcStrBufDone (&parse->pstack->str); | |
2064 | if (!data) | |
2065 | { | |
2066 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
2067 | break; | |
2068 | } | |
2069 | if (!FcStrUsesHome (data) || FcConfigHome ()) | |
2070 | { | |
2071 | if (!FcConfigAddCacheDir (parse->config, data)) | |
2072 | FcConfigMessage (parse, FcSevereError, "out of memory; cannot add cache directory %s", data); | |
2073 | } | |
2074 | FcStrFree (data); | |
2075 | break; | |
2076 | ||
2077 | case FcElementCache: | |
2078 | data = FcStrBufDone (&parse->pstack->str); | |
2079 | if (!data) | |
2080 | { | |
2081 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
2082 | break; | |
2083 | } | |
2084 | /* discard this data; no longer used */ | |
2085 | FcStrFree (data); | |
2086 | break; | |
2087 | case FcElementInclude: | |
2088 | FcParseInclude (parse); | |
2089 | break; | |
2090 | case FcElementConfig: | |
2091 | break; | |
2092 | case FcElementMatch: | |
2093 | FcParseMatch (parse); | |
2094 | break; | |
2095 | case FcElementAlias: | |
2096 | FcParseAlias (parse); | |
2097 | break; | |
2098 | ||
2099 | case FcElementBlank: | |
2100 | FcParseBlank (parse); | |
2101 | break; | |
2102 | case FcElementRescan: | |
2103 | FcParseRescan (parse); | |
2104 | break; | |
2105 | ||
2106 | case FcElementPrefer: | |
2107 | FcParseFamilies (parse, FcVStackPrefer); | |
2108 | break; | |
2109 | case FcElementAccept: | |
2110 | FcParseFamilies (parse, FcVStackAccept); | |
2111 | break; | |
2112 | case FcElementDefault: | |
2113 | FcParseFamilies (parse, FcVStackDefault); | |
2114 | break; | |
2115 | case FcElementFamily: | |
2116 | FcParseFamily (parse); | |
2117 | break; | |
2118 | ||
2119 | case FcElementTest: | |
2120 | FcParseTest (parse); | |
2121 | break; | |
2122 | case FcElementEdit: | |
2123 | FcParseEdit (parse); | |
2124 | break; | |
2125 | ||
2126 | case FcElementInt: | |
2127 | FcParseInt (parse); | |
2128 | break; | |
2129 | case FcElementDouble: | |
2130 | FcParseDouble (parse); | |
2131 | break; | |
2132 | case FcElementString: | |
2133 | FcParseString (parse, FcVStackString); | |
2134 | break; | |
2135 | case FcElementMatrix: | |
2136 | FcParseMatrix (parse); | |
2137 | break; | |
2138 | case FcElementBool: | |
2139 | FcParseBool (parse); | |
2140 | break; | |
2141 | case FcElementCharset: | |
2142 | /* FcParseCharset (parse); */ | |
2143 | break; | |
2144 | case FcElementSelectfont: | |
2145 | break; | |
2146 | case FcElementAcceptfont: | |
2147 | case FcElementRejectfont: | |
2148 | FcParseAcceptRejectFont (parse, parse->pstack->element); | |
2149 | break; | |
2150 | case FcElementGlob: | |
2151 | FcParseString (parse, FcVStackGlob); | |
2152 | break; | |
2153 | case FcElementPattern: | |
2154 | FcParsePattern (parse); | |
2155 | break; | |
2156 | case FcElementPatelt: | |
2157 | FcParsePatelt (parse); | |
2158 | break; | |
2159 | case FcElementName: | |
2160 | FcParseString (parse, FcVStackField); | |
2161 | break; | |
2162 | case FcElementConst: | |
2163 | FcParseString (parse, FcVStackConstant); | |
2164 | break; | |
2165 | case FcElementOr: | |
2166 | FcParseBinary (parse, FcOpOr); | |
2167 | break; | |
2168 | case FcElementAnd: | |
2169 | FcParseBinary (parse, FcOpAnd); | |
2170 | break; | |
2171 | case FcElementEq: | |
2172 | FcParseBinary (parse, FcOpEqual); | |
2173 | break; | |
2174 | case FcElementNotEq: | |
2175 | FcParseBinary (parse, FcOpNotEqual); | |
2176 | break; | |
2177 | case FcElementLess: | |
2178 | FcParseBinary (parse, FcOpLess); | |
2179 | break; | |
2180 | case FcElementLessEq: | |
2181 | FcParseBinary (parse, FcOpLessEqual); | |
2182 | break; | |
2183 | case FcElementMore: | |
2184 | FcParseBinary (parse, FcOpMore); | |
2185 | break; | |
2186 | case FcElementMoreEq: | |
2187 | FcParseBinary (parse, FcOpMoreEqual); | |
2188 | break; | |
2189 | case FcElementContains: | |
2190 | FcParseBinary (parse, FcOpContains); | |
2191 | break; | |
2192 | case FcElementNotContains: | |
2193 | FcParseBinary (parse, FcOpNotContains); | |
2194 | break; | |
2195 | case FcElementPlus: | |
2196 | FcParseBinary (parse, FcOpPlus); | |
2197 | break; | |
2198 | case FcElementMinus: | |
2199 | FcParseBinary (parse, FcOpMinus); | |
2200 | break; | |
2201 | case FcElementTimes: | |
2202 | FcParseBinary (parse, FcOpTimes); | |
2203 | break; | |
2204 | case FcElementDivide: | |
2205 | FcParseBinary (parse, FcOpDivide); | |
2206 | break; | |
2207 | case FcElementNot: | |
2208 | FcParseUnary (parse, FcOpNot); | |
2209 | break; | |
2210 | case FcElementIf: | |
2211 | FcParseBinary (parse, FcOpQuest); | |
2212 | break; | |
2213 | case FcElementFloor: | |
2214 | FcParseUnary (parse, FcOpFloor); | |
2215 | break; | |
2216 | case FcElementCeil: | |
2217 | FcParseUnary (parse, FcOpCeil); | |
2218 | break; | |
2219 | case FcElementRound: | |
2220 | FcParseUnary (parse, FcOpRound); | |
2221 | break; | |
2222 | case FcElementTrunc: | |
2223 | FcParseUnary (parse, FcOpTrunc); | |
2224 | break; | |
2225 | case FcElementUnknown: | |
2226 | break; | |
2227 | } | |
2228 | (void) FcPStackPop (parse); | |
2229 | } | |
2230 | ||
2231 | static void | |
2232 | FcCharacterData (void *userData, const XML_Char *s, int len) | |
2233 | { | |
2234 | FcConfigParse *parse = userData; | |
2235 | ||
2236 | if (!parse->pstack) | |
2237 | return; | |
2238 | if (!FcStrBufData (&parse->pstack->str, (FcChar8 *) s, len)) | |
2239 | FcConfigMessage (parse, FcSevereError, "out of memory"); | |
2240 | } | |
2241 | ||
2242 | static void | |
2243 | FcStartDoctypeDecl (void *userData, | |
2244 | const XML_Char *doctypeName, | |
2245 | const XML_Char *sysid, | |
2246 | const XML_Char *pubid, | |
2247 | int has_internal_subset) | |
2248 | { | |
2249 | FcConfigParse *parse = userData; | |
2250 | ||
2251 | if (strcmp ((char *) doctypeName, "fontconfig") != 0) | |
2252 | FcConfigMessage (parse, FcSevereError, "invalid doctype \"%s\"", doctypeName); | |
2253 | } | |
2254 | ||
2255 | #ifdef ENABLE_LIBXML2 | |
2256 | ||
2257 | static void | |
2258 | FcInternalSubsetDecl (void *userData, | |
2259 | const XML_Char *doctypeName, | |
2260 | const XML_Char *sysid, | |
2261 | const XML_Char *pubid) | |
2262 | { | |
2263 | FcStartDoctypeDecl (userData, doctypeName, sysid, pubid, 1); | |
2264 | } | |
2265 | ||
2266 | static void | |
2267 | FcExternalSubsetDecl (void *userData, | |
2268 | const XML_Char *doctypeName, | |
2269 | const XML_Char *sysid, | |
2270 | const XML_Char *pubid) | |
2271 | { | |
2272 | FcStartDoctypeDecl (userData, doctypeName, sysid, pubid, 0); | |
2273 | } | |
2274 | ||
2275 | #else /* ENABLE_LIBXML2 */ | |
2276 | ||
2277 | static void | |
2278 | FcEndDoctypeDecl (void *userData) | |
2279 | { | |
2280 | } | |
2281 | ||
2282 | #endif /* ENABLE_LIBXML2 */ | |
2283 | ||
2284 | static FcBool | |
2285 | FcConfigParseAndLoadDir (FcConfig *config, | |
2286 | const FcChar8 *name, | |
2287 | const FcChar8 *dir, | |
2288 | FcBool complain) | |
2289 | { | |
2290 | DIR *d; | |
2291 | struct dirent *e; | |
2292 | FcBool ret = FcTrue; | |
2293 | FcChar8 *file; | |
2294 | FcChar8 *base; | |
2295 | FcStrSet *files; | |
2296 | ||
2297 | d = opendir ((char *) dir); | |
2298 | if (!d) | |
2299 | { | |
2300 | if (complain) | |
2301 | FcConfigMessage (0, FcSevereError, "Cannot open config dir \"%s\"", | |
2302 | name); | |
2303 | ret = FcFalse; | |
2304 | goto bail0; | |
2305 | } | |
2306 | /* freed below */ | |
2307 | file = (FcChar8 *) malloc (strlen ((char *) dir) + 1 + FC_MAX_FILE_LEN + 1); | |
2308 | if (!file) | |
2309 | { | |
2310 | ret = FcFalse; | |
2311 | goto bail1; | |
2312 | } | |
2313 | ||
2314 | strcpy ((char *) file, (char *) dir); | |
2315 | strcat ((char *) file, "/"); | |
2316 | base = file + strlen ((char *) file); | |
2317 | ||
2318 | files = FcStrSetCreate (); | |
2319 | if (!files) | |
2320 | { | |
2321 | ret = FcFalse; | |
2322 | goto bail2; | |
2323 | } | |
2324 | ||
2325 | if (FcDebug () & FC_DBG_CONFIG) | |
2326 | printf ("\tScanning config dir %s\n", dir); | |
2327 | ||
2328 | while (ret && (e = readdir (d))) | |
2329 | { | |
2330 | int d_len; | |
2331 | #define TAIL ".conf" | |
2332 | #define TAIL_LEN 5 | |
2333 | /* | |
2334 | * Add all files of the form [0-9]*.conf | |
2335 | */ | |
2336 | if ('0' <= e->d_name[0] && e->d_name[0] <= '9' && | |
2337 | (d_len = strlen (e->d_name)) < FC_MAX_FILE_LEN && | |
2338 | d_len > TAIL_LEN && | |
2339 | strcmp (e->d_name + d_len - TAIL_LEN, TAIL) == 0) | |
2340 | { | |
2341 | strcpy ((char *) base, (char *) e->d_name); | |
2342 | if (!FcStrSetAdd (files, file)) | |
2343 | { | |
2344 | ret = FcFalse; | |
2345 | goto bail3; | |
2346 | } | |
2347 | } | |
2348 | } | |
2349 | if (ret) | |
2350 | { | |
2351 | int i; | |
2352 | qsort (files->strs, files->num, sizeof (FcChar8 *), | |
2353 | (int (*)(const void *, const void *)) FcStrCmp); | |
2354 | for (i = 0; ret && i < files->num; i++) | |
2355 | ret = FcConfigParseAndLoad (config, files->strs[i], complain); | |
2356 | } | |
2357 | bail3: | |
2358 | FcStrSetDestroy (files); | |
2359 | bail2: | |
2360 | free (file); | |
2361 | bail1: | |
2362 | closedir (d); | |
2363 | bail0: | |
2364 | return ret || !complain; | |
2365 | } | |
2366 | ||
2367 | FcBool | |
2368 | FcConfigParseAndLoad (FcConfig *config, | |
2369 | const FcChar8 *name, | |
2370 | FcBool complain) | |
2371 | { | |
2372 | ||
2373 | XML_Parser p; | |
2374 | FcChar8 *filename; | |
2375 | int fd; | |
2376 | int len; | |
2377 | FcConfigParse parse; | |
2378 | FcBool error = FcTrue; | |
2379 | ||
2380 | #ifdef ENABLE_LIBXML2 | |
2381 | xmlSAXHandler sax; | |
2382 | char buf[BUFSIZ]; | |
2383 | #else | |
2384 | void *buf; | |
2385 | #endif | |
2386 | ||
2387 | filename = FcConfigFilename (name); | |
2388 | if (!filename) | |
2389 | goto bail0; | |
2390 | ||
2391 | if (FcStrSetMember (config->configFiles, filename)) | |
2392 | { | |
2393 | FcStrFree (filename); | |
2394 | return FcTrue; | |
2395 | } | |
2396 | ||
2397 | if (!FcStrSetAdd (config->configFiles, filename)) | |
2398 | { | |
2399 | FcStrFree (filename); | |
2400 | goto bail0; | |
2401 | } | |
2402 | ||
2403 | if (FcFileIsDir (filename)) | |
2404 | { | |
2405 | FcBool ret = FcConfigParseAndLoadDir (config, name, filename, complain); | |
2406 | FcStrFree (filename); | |
2407 | return ret; | |
2408 | } | |
2409 | ||
2410 | if (FcDebug () & FC_DBG_CONFIG) | |
2411 | printf ("\tLoading config file %s\n", filename); | |
2412 | ||
2413 | fd = open ((char *) filename, O_RDONLY); | |
2414 | if (fd == -1) { | |
2415 | FcStrFree (filename); | |
2416 | goto bail0; | |
2417 | } | |
2418 | ||
2419 | #ifdef ENABLE_LIBXML2 | |
2420 | memset(&sax, 0, sizeof(sax)); | |
2421 | ||
2422 | sax.internalSubset = FcInternalSubsetDecl; | |
2423 | sax.externalSubset = FcExternalSubsetDecl; | |
2424 | sax.startElement = FcStartElement; | |
2425 | sax.endElement = FcEndElement; | |
2426 | sax.characters = FcCharacterData; | |
2427 | ||
2428 | p = xmlCreatePushParserCtxt (&sax, &parse, NULL, 0, (const char *) filename); | |
2429 | #else | |
2430 | p = XML_ParserCreate ("UTF-8"); | |
2431 | #endif | |
2432 | FcStrFree (filename); | |
2433 | ||
2434 | if (!p) | |
2435 | goto bail1; | |
2436 | ||
2437 | if (!FcConfigInit (&parse, name, config, p)) | |
2438 | goto bail2; | |
2439 | ||
2440 | #ifndef ENABLE_LIBXML2 | |
2441 | ||
2442 | XML_SetUserData (p, &parse); | |
2443 | ||
2444 | XML_SetDoctypeDeclHandler (p, FcStartDoctypeDecl, FcEndDoctypeDecl); | |
2445 | XML_SetElementHandler (p, FcStartElement, FcEndElement); | |
2446 | XML_SetCharacterDataHandler (p, FcCharacterData); | |
2447 | ||
2448 | #endif /* ENABLE_LIBXML2 */ | |
2449 | ||
2450 | do { | |
2451 | #ifndef ENABLE_LIBXML2 | |
2452 | buf = XML_GetBuffer (p, BUFSIZ); | |
2453 | if (!buf) | |
2454 | { | |
2455 | FcConfigMessage (&parse, FcSevereError, "cannot get parse buffer"); | |
2456 | goto bail3; | |
2457 | } | |
2458 | #endif | |
2459 | len = read (fd, buf, BUFSIZ); | |
2460 | if (len < 0) | |
2461 | { | |
2462 | FcConfigMessage (&parse, FcSevereError, "failed reading config file"); | |
2463 | goto bail3; | |
2464 | } | |
2465 | ||
2466 | #ifdef ENABLE_LIBXML2 | |
2467 | if (xmlParseChunk (p, buf, len, len == 0)) | |
2468 | #else | |
2469 | if (!XML_ParseBuffer (p, len, len == 0)) | |
2470 | #endif | |
2471 | { | |
2472 | FcConfigMessage (&parse, FcSevereError, "%s", | |
2473 | XML_ErrorString (XML_GetErrorCode (p))); | |
2474 | goto bail3; | |
2475 | } | |
2476 | } while (len != 0); | |
2477 | error = parse.error; | |
2478 | bail3: | |
2479 | FcConfigCleanup (&parse); | |
2480 | bail2: | |
2481 | XML_ParserFree (p); | |
2482 | bail1: | |
2483 | close (fd); | |
2484 | fd = -1; | |
2485 | bail0: | |
2486 | if (error && complain) | |
2487 | { | |
2488 | if (name) | |
2489 | FcConfigMessage (0, FcSevereError, "Cannot load config file \"%s\"", name); | |
2490 | else | |
2491 | FcConfigMessage (0, FcSevereError, "Cannot load default config file"); | |
2492 | return FcFalse; | |
2493 | } | |
2494 | return FcTrue; | |
2495 | } |