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1 /* | |
2 * xslt.c: Implemetation of an XSL Transformation 1.0 engine | |
3 * | |
4 * Reference: | |
5 * XSLT specification | |
6 * http://www.w3.org/TR/1999/REC-xslt-19991116 | |
7 * | |
8 * Associating Style Sheets with XML documents | |
9 * http://www.w3.org/1999/06/REC-xml-stylesheet-19990629 | |
10 * | |
11 * See Copyright for the status of this software. | |
12 * | |
13 * daniel@veillard.com | |
14 */ | |
15 | |
16 #define IN_LIBXSLT | |
17 #include "libxslt.h" | |
18 | |
19 #include <string.h> | |
20 | |
21 #include <libxml/xmlmemory.h> | |
22 #include <libxml/parser.h> | |
23 #include <libxml/tree.h> | |
24 #include <libxml/valid.h> | |
25 #include <libxml/hash.h> | |
26 #include <libxml/uri.h> | |
27 #include <libxml/xmlerror.h> | |
28 #include <libxml/parserInternals.h> | |
29 #include <libxml/xpathInternals.h> | |
30 #include <libxml/xpath.h> | |
31 #include "xslt.h" | |
32 #include "xsltInternals.h" | |
33 #include "pattern.h" | |
34 #include "variables.h" | |
35 #include "namespaces.h" | |
36 #include "attributes.h" | |
37 #include "xsltutils.h" | |
38 #include "imports.h" | |
39 #include "keys.h" | |
40 #include "documents.h" | |
41 #include "extensions.h" | |
42 #include "preproc.h" | |
43 #include "extra.h" | |
44 #include "security.h" | |
45 | |
46 #ifdef WITH_XSLT_DEBUG | |
47 #define WITH_XSLT_DEBUG_PARSING | |
48 /* #define WITH_XSLT_DEBUG_BLANKS */ | |
49 #endif | |
50 | |
51 const char *xsltEngineVersion = LIBXSLT_VERSION_STRING LIBXSLT_VERSION_EXTRA; | |
52 const int xsltLibxsltVersion = LIBXSLT_VERSION; | |
53 const int xsltLibxmlVersion = LIBXML_VERSION; | |
54 | |
55 #ifdef XSLT_REFACTORED | |
56 | |
57 const xmlChar *xsltConstNamespaceNameXSLT = (const xmlChar *) XSLT_NAMESPACE; | |
58 | |
59 #define XSLT_ELEMENT_CATEGORY_XSLT 0 | |
60 #define XSLT_ELEMENT_CATEGORY_EXTENSION 1 | |
61 #define XSLT_ELEMENT_CATEGORY_LRE 2 | |
62 | |
63 /* | |
64 * xsltLiteralResultMarker: | |
65 * Marker for Literal result elements, in order to avoid multiple attempts | |
66 * to recognize such elements in the stylesheet's tree. | |
67 * This marker is set on node->psvi during the initial traversal | |
68 * of a stylesheet's node tree. | |
69 * | |
70 const xmlChar *xsltLiteralResultMarker = | |
71 (const xmlChar *) "Literal Result Element"; | |
72 */ | |
73 | |
74 /* | |
75 * xsltXSLTTextMarker: | |
76 * Marker for xsl:text elements. Used to recognize xsl:text elements | |
77 * for post-processing of the stylesheet's tree, where those | |
78 * elements are removed from the tree. | |
79 */ | |
80 const xmlChar *xsltXSLTTextMarker = (const xmlChar *) "XSLT Text Element"; | |
81 | |
82 /* | |
83 * xsltXSLTAttrMarker: | |
84 * Marker for XSLT attribute on Literal Result Elements. | |
85 */ | |
86 const xmlChar *xsltXSLTAttrMarker = (const xmlChar *) "LRE XSLT Attr"; | |
87 | |
88 #endif | |
89 | |
90 #ifdef XSLT_LOCALE_WINAPI | |
91 extern xmlRMutexPtr xsltLocaleMutex; | |
92 #endif | |
93 /* | |
94 * Harmless but avoiding a problem when compiling against a | |
95 * libxml <= 2.3.11 without LIBXML_DEBUG_ENABLED | |
96 */ | |
97 #ifndef LIBXML_DEBUG_ENABLED | |
98 double xmlXPathStringEvalNumber(const xmlChar *str); | |
99 #endif | |
100 /* | |
101 * Useful macros | |
102 */ | |
103 | |
104 #ifdef IS_BLANK | |
105 #undef IS_BLANK | |
106 #endif | |
107 #define IS_BLANK(c) (((c) == 0x20) || ((c) == 0x09) || ((c) == 0xA) || \ | |
108 ((c) == 0x0D)) | |
109 | |
110 #ifdef IS_BLANK_NODE | |
111 #undef IS_BLANK_NODE | |
112 #endif | |
113 #define IS_BLANK_NODE(n) \ | |
114 (((n)->type == XML_TEXT_NODE) && (xsltIsBlank((n)->content))) | |
115 | |
116 /** | |
117 * xsltParseContentError: | |
118 * | |
119 * @style: the stylesheet | |
120 * @node: the node where the error occured | |
121 * | |
122 * Compile-time error function. | |
123 */ | |
124 static void | |
125 xsltParseContentError(xsltStylesheetPtr style, | |
126 xmlNodePtr node) | |
127 { | |
128 if ((style == NULL) || (node == NULL)) | |
129 return; | |
130 | |
131 if (IS_XSLT_ELEM(node)) | |
132 xsltTransformError(NULL, style, node, | |
133 "The XSLT-element '%s' is not allowed at this position.\n", | |
134 node->name); | |
135 else | |
136 xsltTransformError(NULL, style, node, | |
137 "The element '%s' is not allowed at this position.\n", | |
138 node->name); | |
139 style->errors++; | |
140 } | |
141 | |
142 #ifdef XSLT_REFACTORED | |
143 #else | |
144 /** | |
145 * exclPrefixPush: | |
146 * @style: the transformation stylesheet | |
147 * @value: the excluded namespace name to push on the stack | |
148 * | |
149 * Push an excluded namespace name on the stack | |
150 * | |
151 * Returns the new index in the stack or -1 if already present or | |
152 * in case of error | |
153 */ | |
154 static int | |
155 exclPrefixPush(xsltStylesheetPtr style, xmlChar * value) | |
156 { | |
157 int i; | |
158 | |
159 if (style->exclPrefixMax == 0) { | |
160 style->exclPrefixMax = 4; | |
161 style->exclPrefixTab = | |
162 (xmlChar * *)xmlMalloc(style->exclPrefixMax * | |
163 sizeof(style->exclPrefixTab[0])); | |
164 if (style->exclPrefixTab == NULL) { | |
165 xmlGenericError(xmlGenericErrorContext, "malloc failed !\n"); | |
166 return (-1); | |
167 } | |
168 } | |
169 /* do not push duplicates */ | |
170 for (i = 0;i < style->exclPrefixNr;i++) { | |
171 if (xmlStrEqual(style->exclPrefixTab[i], value)) | |
172 return(-1); | |
173 } | |
174 if (style->exclPrefixNr >= style->exclPrefixMax) { | |
175 style->exclPrefixMax *= 2; | |
176 style->exclPrefixTab = | |
177 (xmlChar * *)xmlRealloc(style->exclPrefixTab, | |
178 style->exclPrefixMax * | |
179 sizeof(style->exclPrefixTab[0])); | |
180 if (style->exclPrefixTab == NULL) { | |
181 xmlGenericError(xmlGenericErrorContext, "realloc failed !\n"); | |
182 return (-1); | |
183 } | |
184 } | |
185 style->exclPrefixTab[style->exclPrefixNr] = value; | |
186 style->exclPrefix = value; | |
187 return (style->exclPrefixNr++); | |
188 } | |
189 /** | |
190 * exclPrefixPop: | |
191 * @style: the transformation stylesheet | |
192 * | |
193 * Pop an excluded prefix value from the stack | |
194 * | |
195 * Returns the stored excluded prefix value | |
196 */ | |
197 static xmlChar * | |
198 exclPrefixPop(xsltStylesheetPtr style) | |
199 { | |
200 xmlChar *ret; | |
201 | |
202 if (style->exclPrefixNr <= 0) | |
203 return (0); | |
204 style->exclPrefixNr--; | |
205 if (style->exclPrefixNr > 0) | |
206 style->exclPrefix = style->exclPrefixTab[style->exclPrefixNr - 1]; | |
207 else | |
208 style->exclPrefix = NULL; | |
209 ret = style->exclPrefixTab[style->exclPrefixNr]; | |
210 style->exclPrefixTab[style->exclPrefixNr] = 0; | |
211 return (ret); | |
212 } | |
213 #endif | |
214 | |
215 /************************************************************************ | |
216 * * | |
217 * Helper functions * | |
218 * * | |
219 ************************************************************************/ | |
220 | |
221 static int initialized = 0; | |
222 /** | |
223 * xsltInit: | |
224 * | |
225 * Initializes the processor (e.g. registers built-in extensions, | |
226 * etc.) | |
227 */ | |
228 void | |
229 xsltInit (void) { | |
230 if (initialized == 0) { | |
231 initialized = 1; | |
232 #ifdef XSLT_LOCALE_WINAPI | |
233 xsltLocaleMutex = xmlNewRMutex(); | |
234 #endif | |
235 xsltRegisterAllExtras(); | |
236 } | |
237 } | |
238 | |
239 /** | |
240 * xsltUninit: | |
241 * | |
242 * Uninitializes the processor. | |
243 */ | |
244 void | |
245 xsltUninit (void) { | |
246 #ifdef XSLT_LOCALE_WINAPI | |
247 xmlFreeRMutex(xsltLocaleMutex); | |
248 xsltLocaleMutex = NULL; | |
249 #endif | |
250 initialized = 0; | |
251 } | |
252 | |
253 /** | |
254 * xsltIsBlank: | |
255 * @str: a string | |
256 * | |
257 * Check if a string is ignorable | |
258 * | |
259 * Returns 1 if the string is NULL or made of blanks chars, 0 otherwise | |
260 */ | |
261 int | |
262 xsltIsBlank(xmlChar *str) { | |
263 if (str == NULL) | |
264 return(1); | |
265 while (*str != 0) { | |
266 if (!(IS_BLANK(*str))) return(0); | |
267 str++; | |
268 } | |
269 return(1); | |
270 } | |
271 | |
272 /************************************************************************ | |
273 * * | |
274 * Routines to handle XSLT data structures * | |
275 * * | |
276 ************************************************************************/ | |
277 static xsltDecimalFormatPtr | |
278 xsltNewDecimalFormat(const xmlChar *nsUri, xmlChar *name) | |
279 { | |
280 xsltDecimalFormatPtr self; | |
281 /* UTF-8 for 0x2030 */ | |
282 static const xmlChar permille[4] = {0xe2, 0x80, 0xb0, 0}; | |
283 | |
284 self = xmlMalloc(sizeof(xsltDecimalFormat)); | |
285 if (self != NULL) { | |
286 self->next = NULL; | |
287 self->nsUri = nsUri; | |
288 self->name = name; | |
289 | |
290 /* Default values */ | |
291 self->digit = xmlStrdup(BAD_CAST("#")); | |
292 self->patternSeparator = xmlStrdup(BAD_CAST(";")); | |
293 self->decimalPoint = xmlStrdup(BAD_CAST(".")); | |
294 self->grouping = xmlStrdup(BAD_CAST(",")); | |
295 self->percent = xmlStrdup(BAD_CAST("%")); | |
296 self->permille = xmlStrdup(BAD_CAST(permille)); | |
297 self->zeroDigit = xmlStrdup(BAD_CAST("0")); | |
298 self->minusSign = xmlStrdup(BAD_CAST("-")); | |
299 self->infinity = xmlStrdup(BAD_CAST("Infinity")); | |
300 self->noNumber = xmlStrdup(BAD_CAST("NaN")); | |
301 } | |
302 return self; | |
303 } | |
304 | |
305 static void | |
306 xsltFreeDecimalFormat(xsltDecimalFormatPtr self) | |
307 { | |
308 if (self != NULL) { | |
309 if (self->digit) | |
310 xmlFree(self->digit); | |
311 if (self->patternSeparator) | |
312 xmlFree(self->patternSeparator); | |
313 if (self->decimalPoint) | |
314 xmlFree(self->decimalPoint); | |
315 if (self->grouping) | |
316 xmlFree(self->grouping); | |
317 if (self->percent) | |
318 xmlFree(self->percent); | |
319 if (self->permille) | |
320 xmlFree(self->permille); | |
321 if (self->zeroDigit) | |
322 xmlFree(self->zeroDigit); | |
323 if (self->minusSign) | |
324 xmlFree(self->minusSign); | |
325 if (self->infinity) | |
326 xmlFree(self->infinity); | |
327 if (self->noNumber) | |
328 xmlFree(self->noNumber); | |
329 if (self->name) | |
330 xmlFree(self->name); | |
331 xmlFree(self); | |
332 } | |
333 } | |
334 | |
335 static void | |
336 xsltFreeDecimalFormatList(xsltStylesheetPtr self) | |
337 { | |
338 xsltDecimalFormatPtr iter; | |
339 xsltDecimalFormatPtr tmp; | |
340 | |
341 if (self == NULL) | |
342 return; | |
343 | |
344 iter = self->decimalFormat; | |
345 while (iter != NULL) { | |
346 tmp = iter->next; | |
347 xsltFreeDecimalFormat(iter); | |
348 iter = tmp; | |
349 } | |
350 } | |
351 | |
352 /** | |
353 * xsltDecimalFormatGetByName: | |
354 * @style: the XSLT stylesheet | |
355 * @name: the decimal-format name to find | |
356 * | |
357 * Find decimal-format by name | |
358 * | |
359 * Returns the xsltDecimalFormatPtr | |
360 */ | |
361 xsltDecimalFormatPtr | |
362 xsltDecimalFormatGetByName(xsltStylesheetPtr style, xmlChar *name) | |
363 { | |
364 xsltDecimalFormatPtr result = NULL; | |
365 | |
366 if (name == NULL) | |
367 return style->decimalFormat; | |
368 | |
369 while (style != NULL) { | |
370 for (result = style->decimalFormat->next; | |
371 result != NULL; | |
372 result = result->next) { | |
373 if ((result->nsUri == NULL) && xmlStrEqual(name, result->name)) | |
374 return result; | |
375 } | |
376 style = xsltNextImport(style); | |
377 } | |
378 return result; | |
379 } | |
380 | |
381 /** | |
382 * xsltDecimalFormatGetByQName: | |
383 * @style: the XSLT stylesheet | |
384 * @nsUri: the namespace URI of the QName | |
385 * @name: the local part of the QName | |
386 * | |
387 * Find decimal-format by QName | |
388 * | |
389 * Returns the xsltDecimalFormatPtr | |
390 */ | |
391 xsltDecimalFormatPtr | |
392 xsltDecimalFormatGetByQName(xsltStylesheetPtr style, const xmlChar *nsUri, | |
393 const xmlChar *name) | |
394 { | |
395 xsltDecimalFormatPtr result = NULL; | |
396 | |
397 if (name == NULL) | |
398 return style->decimalFormat; | |
399 | |
400 while (style != NULL) { | |
401 for (result = style->decimalFormat->next; | |
402 result != NULL; | |
403 result = result->next) { | |
404 if (xmlStrEqual(nsUri, result->nsUri) && | |
405 xmlStrEqual(name, result->name)) | |
406 return result; | |
407 } | |
408 style = xsltNextImport(style); | |
409 } | |
410 return result; | |
411 } | |
412 | |
413 | |
414 /** | |
415 * xsltNewTemplate: | |
416 * | |
417 * Create a new XSLT Template | |
418 * | |
419 * Returns the newly allocated xsltTemplatePtr or NULL in case of error | |
420 */ | |
421 static xsltTemplatePtr | |
422 xsltNewTemplate(void) { | |
423 xsltTemplatePtr cur; | |
424 | |
425 cur = (xsltTemplatePtr) xmlMalloc(sizeof(xsltTemplate)); | |
426 if (cur == NULL) { | |
427 xsltTransformError(NULL, NULL, NULL, | |
428 "xsltNewTemplate : malloc failed\n"); | |
429 return(NULL); | |
430 } | |
431 memset(cur, 0, sizeof(xsltTemplate)); | |
432 cur->priority = XSLT_PAT_NO_PRIORITY; | |
433 return(cur); | |
434 } | |
435 | |
436 /** | |
437 * xsltFreeTemplate: | |
438 * @template: an XSLT template | |
439 * | |
440 * Free up the memory allocated by @template | |
441 */ | |
442 static void | |
443 xsltFreeTemplate(xsltTemplatePtr template) { | |
444 if (template == NULL) | |
445 return; | |
446 if (template->match) xmlFree(template->match); | |
447 /* | |
448 * NOTE: @name and @nameURI are put into the string dict now. | |
449 * if (template->name) xmlFree(template->name); | |
450 * if (template->nameURI) xmlFree(template->nameURI); | |
451 */ | |
452 /* | |
453 if (template->mode) xmlFree(template->mode); | |
454 if (template->modeURI) xmlFree(template->modeURI); | |
455 */ | |
456 if (template->inheritedNs) xmlFree(template->inheritedNs); | |
457 | |
458 /* free profiling data */ | |
459 if (template->templCalledTab) xmlFree(template->templCalledTab); | |
460 if (template->templCountTab) xmlFree(template->templCountTab); | |
461 | |
462 memset(template, -1, sizeof(xsltTemplate)); | |
463 xmlFree(template); | |
464 } | |
465 | |
466 /** | |
467 * xsltFreeTemplateList: | |
468 * @template: an XSLT template list | |
469 * | |
470 * Free up the memory allocated by all the elements of @template | |
471 */ | |
472 static void | |
473 xsltFreeTemplateList(xsltTemplatePtr template) { | |
474 xsltTemplatePtr cur; | |
475 | |
476 while (template != NULL) { | |
477 cur = template; | |
478 template = template->next; | |
479 xsltFreeTemplate(cur); | |
480 } | |
481 } | |
482 | |
483 #ifdef XSLT_REFACTORED | |
484 | |
485 static void | |
486 xsltFreeNsAliasList(xsltNsAliasPtr item) | |
487 { | |
488 xsltNsAliasPtr tmp; | |
489 | |
490 while (item) { | |
491 tmp = item; | |
492 item = item->next; | |
493 xmlFree(tmp); | |
494 } | |
495 return; | |
496 } | |
497 | |
498 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
499 static void | |
500 xsltFreeNamespaceMap(xsltNsMapPtr item) | |
501 { | |
502 xsltNsMapPtr tmp; | |
503 | |
504 while (item) { | |
505 tmp = item; | |
506 item = item->next; | |
507 xmlFree(tmp); | |
508 } | |
509 return; | |
510 } | |
511 | |
512 static xsltNsMapPtr | |
513 xsltNewNamespaceMapItem(xsltCompilerCtxtPtr cctxt, | |
514 xmlDocPtr doc, | |
515 xmlNsPtr ns, | |
516 xmlNodePtr elem) | |
517 { | |
518 xsltNsMapPtr ret; | |
519 | |
520 if ((cctxt == NULL) || (doc == NULL) || (ns == NULL)) | |
521 return(NULL); | |
522 | |
523 ret = (xsltNsMapPtr) xmlMalloc(sizeof(xsltNsMap)); | |
524 if (ret == NULL) { | |
525 xsltTransformError(NULL, cctxt->style, elem, | |
526 "Internal error: (xsltNewNamespaceMapItem) " | |
527 "memory allocation failed.\n"); | |
528 return(NULL); | |
529 } | |
530 memset(ret, 0, sizeof(xsltNsMap)); | |
531 ret->doc = doc; | |
532 ret->ns = ns; | |
533 ret->origNsName = ns->href; | |
534 /* | |
535 * Store the item at current stylesheet-level. | |
536 */ | |
537 if (cctxt->psData->nsMap != NULL) | |
538 ret->next = cctxt->psData->nsMap; | |
539 cctxt->psData->nsMap = ret; | |
540 | |
541 return(ret); | |
542 } | |
543 #endif /* XSLT_REFACTORED_XSLT_NSCOMP */ | |
544 | |
545 /** | |
546 * xsltCompilerVarInfoFree: | |
547 * @cctxt: the compilation context | |
548 * | |
549 * Frees the list of information for vars/params. | |
550 */ | |
551 static void | |
552 xsltCompilerVarInfoFree(xsltCompilerCtxtPtr cctxt) | |
553 { | |
554 xsltVarInfoPtr ivar = cctxt->ivars, ivartmp; | |
555 | |
556 while (ivar) { | |
557 ivartmp = ivar; | |
558 ivar = ivar->next; | |
559 xmlFree(ivartmp); | |
560 } | |
561 } | |
562 | |
563 /** | |
564 * xsltCompilerCtxtFree: | |
565 * | |
566 * Free an XSLT compiler context. | |
567 */ | |
568 static void | |
569 xsltCompilationCtxtFree(xsltCompilerCtxtPtr cctxt) | |
570 { | |
571 if (cctxt == NULL) | |
572 return; | |
573 #ifdef WITH_XSLT_DEBUG_PARSING | |
574 xsltGenericDebug(xsltGenericDebugContext, | |
575 "Freeing compilation context\n"); | |
576 xsltGenericDebug(xsltGenericDebugContext, | |
577 "### Max inodes: %d\n", cctxt->maxNodeInfos); | |
578 xsltGenericDebug(xsltGenericDebugContext, | |
579 "### Max LREs : %d\n", cctxt->maxLREs); | |
580 #endif | |
581 /* | |
582 * Free node-infos. | |
583 */ | |
584 if (cctxt->inodeList != NULL) { | |
585 xsltCompilerNodeInfoPtr tmp, cur = cctxt->inodeList; | |
586 while (cur != NULL) { | |
587 tmp = cur; | |
588 cur = cur->next; | |
589 xmlFree(tmp); | |
590 } | |
591 } | |
592 if (cctxt->tmpList != NULL) | |
593 xsltPointerListFree(cctxt->tmpList); | |
594 #ifdef XSLT_REFACTORED_XPATHCOMP | |
595 if (cctxt->xpathCtxt != NULL) | |
596 xmlXPathFreeContext(cctxt->xpathCtxt); | |
597 #endif | |
598 if (cctxt->nsAliases != NULL) | |
599 xsltFreeNsAliasList(cctxt->nsAliases); | |
600 | |
601 if (cctxt->ivars) | |
602 xsltCompilerVarInfoFree(cctxt); | |
603 | |
604 xmlFree(cctxt); | |
605 } | |
606 | |
607 /** | |
608 * xsltCompilerCreate: | |
609 * | |
610 * Creates an XSLT compiler context. | |
611 * | |
612 * Returns the pointer to the created xsltCompilerCtxt or | |
613 * NULL in case of an internal error. | |
614 */ | |
615 static xsltCompilerCtxtPtr | |
616 xsltCompilationCtxtCreate(xsltStylesheetPtr style) { | |
617 xsltCompilerCtxtPtr ret; | |
618 | |
619 ret = (xsltCompilerCtxtPtr) xmlMalloc(sizeof(xsltCompilerCtxt)); | |
620 if (ret == NULL) { | |
621 xsltTransformError(NULL, style, NULL, | |
622 "xsltCompilerCreate: allocation of compiler " | |
623 "context failed.\n"); | |
624 return(NULL); | |
625 } | |
626 memset(ret, 0, sizeof(xsltCompilerCtxt)); | |
627 | |
628 ret->errSeverity = XSLT_ERROR_SEVERITY_ERROR; | |
629 ret->tmpList = xsltPointerListCreate(20); | |
630 if (ret->tmpList == NULL) { | |
631 goto internal_err; | |
632 } | |
633 #ifdef XSLT_REFACTORED_XPATHCOMP | |
634 /* | |
635 * Create the XPath compilation context in order | |
636 * to speed up precompilation of XPath expressions. | |
637 */ | |
638 ret->xpathCtxt = xmlXPathNewContext(NULL); | |
639 if (ret->xpathCtxt == NULL) | |
640 goto internal_err; | |
641 #endif | |
642 | |
643 return(ret); | |
644 | |
645 internal_err: | |
646 xsltCompilationCtxtFree(ret); | |
647 return(NULL); | |
648 } | |
649 | |
650 static void | |
651 xsltLREEffectiveNsNodesFree(xsltEffectiveNsPtr first) | |
652 { | |
653 xsltEffectiveNsPtr tmp; | |
654 | |
655 while (first != NULL) { | |
656 tmp = first; | |
657 first = first->nextInStore; | |
658 xmlFree(tmp); | |
659 } | |
660 } | |
661 | |
662 static void | |
663 xsltFreePrincipalStylesheetData(xsltPrincipalStylesheetDataPtr data) | |
664 { | |
665 if (data == NULL) | |
666 return; | |
667 | |
668 if (data->inScopeNamespaces != NULL) { | |
669 int i; | |
670 xsltNsListContainerPtr nsi; | |
671 xsltPointerListPtr list = | |
672 (xsltPointerListPtr) data->inScopeNamespaces; | |
673 | |
674 for (i = 0; i < list->number; i++) { | |
675 /* | |
676 * REVISIT TODO: Free info of in-scope namespaces. | |
677 */ | |
678 nsi = (xsltNsListContainerPtr) list->items[i]; | |
679 if (nsi->list != NULL) | |
680 xmlFree(nsi->list); | |
681 xmlFree(nsi); | |
682 } | |
683 xsltPointerListFree(list); | |
684 data->inScopeNamespaces = NULL; | |
685 } | |
686 | |
687 if (data->exclResultNamespaces != NULL) { | |
688 int i; | |
689 xsltPointerListPtr list = (xsltPointerListPtr) | |
690 data->exclResultNamespaces; | |
691 | |
692 for (i = 0; i < list->number; i++) | |
693 xsltPointerListFree((xsltPointerListPtr) list->items[i]); | |
694 | |
695 xsltPointerListFree(list); | |
696 data->exclResultNamespaces = NULL; | |
697 } | |
698 | |
699 if (data->extElemNamespaces != NULL) { | |
700 xsltPointerListPtr list = (xsltPointerListPtr) | |
701 data->extElemNamespaces; | |
702 int i; | |
703 | |
704 for (i = 0; i < list->number; i++) | |
705 xsltPointerListFree((xsltPointerListPtr) list->items[i]); | |
706 | |
707 xsltPointerListFree(list); | |
708 data->extElemNamespaces = NULL; | |
709 } | |
710 if (data->effectiveNs) { | |
711 xsltLREEffectiveNsNodesFree(data->effectiveNs); | |
712 data->effectiveNs = NULL; | |
713 } | |
714 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
715 xsltFreeNamespaceMap(data->nsMap); | |
716 #endif | |
717 xmlFree(data); | |
718 } | |
719 | |
720 static xsltPrincipalStylesheetDataPtr | |
721 xsltNewPrincipalStylesheetData(void) | |
722 { | |
723 xsltPrincipalStylesheetDataPtr ret; | |
724 | |
725 ret = (xsltPrincipalStylesheetDataPtr) | |
726 xmlMalloc(sizeof(xsltPrincipalStylesheetData)); | |
727 if (ret == NULL) { | |
728 xsltTransformError(NULL, NULL, NULL, | |
729 "xsltNewPrincipalStylesheetData: memory allocation failed.\n"); | |
730 return(NULL); | |
731 } | |
732 memset(ret, 0, sizeof(xsltPrincipalStylesheetData)); | |
733 | |
734 /* | |
735 * Global list of in-scope namespaces. | |
736 */ | |
737 ret->inScopeNamespaces = xsltPointerListCreate(-1); | |
738 if (ret->inScopeNamespaces == NULL) | |
739 goto internal_err; | |
740 /* | |
741 * Global list of excluded result ns-decls. | |
742 */ | |
743 ret->exclResultNamespaces = xsltPointerListCreate(-1); | |
744 if (ret->exclResultNamespaces == NULL) | |
745 goto internal_err; | |
746 /* | |
747 * Global list of extension instruction namespace names. | |
748 */ | |
749 ret->extElemNamespaces = xsltPointerListCreate(-1); | |
750 if (ret->extElemNamespaces == NULL) | |
751 goto internal_err; | |
752 | |
753 return(ret); | |
754 | |
755 internal_err: | |
756 | |
757 return(NULL); | |
758 } | |
759 | |
760 #endif | |
761 | |
762 /** | |
763 * xsltNewStylesheet: | |
764 * | |
765 * Create a new XSLT Stylesheet | |
766 * | |
767 * Returns the newly allocated xsltStylesheetPtr or NULL in case of error | |
768 */ | |
769 xsltStylesheetPtr | |
770 xsltNewStylesheet(void) { | |
771 xsltStylesheetPtr ret = NULL; | |
772 | |
773 ret = (xsltStylesheetPtr) xmlMalloc(sizeof(xsltStylesheet)); | |
774 if (ret == NULL) { | |
775 xsltTransformError(NULL, NULL, NULL, | |
776 "xsltNewStylesheet : malloc failed\n"); | |
777 goto internal_err; | |
778 } | |
779 memset(ret, 0, sizeof(xsltStylesheet)); | |
780 | |
781 ret->omitXmlDeclaration = -1; | |
782 ret->standalone = -1; | |
783 ret->decimalFormat = xsltNewDecimalFormat(NULL, NULL); | |
784 ret->indent = -1; | |
785 ret->errors = 0; | |
786 ret->warnings = 0; | |
787 ret->exclPrefixNr = 0; | |
788 ret->exclPrefixMax = 0; | |
789 ret->exclPrefixTab = NULL; | |
790 ret->extInfos = NULL; | |
791 ret->extrasNr = 0; | |
792 ret->internalized = 1; | |
793 ret->literal_result = 0; | |
794 ret->forwards_compatible = 0; | |
795 ret->dict = xmlDictCreate(); | |
796 #ifdef WITH_XSLT_DEBUG | |
797 xsltGenericDebug(xsltGenericDebugContext, | |
798 "creating dictionary for stylesheet\n"); | |
799 #endif | |
800 | |
801 xsltInit(); | |
802 | |
803 return(ret); | |
804 | |
805 internal_err: | |
806 if (ret != NULL) | |
807 xsltFreeStylesheet(ret); | |
808 return(NULL); | |
809 } | |
810 | |
811 /** | |
812 * xsltAllocateExtra: | |
813 * @style: an XSLT stylesheet | |
814 * | |
815 * Allocate an extra runtime information slot statically while compiling | |
816 * the stylesheet and return its number | |
817 * | |
818 * Returns the number of the slot | |
819 */ | |
820 int | |
821 xsltAllocateExtra(xsltStylesheetPtr style) | |
822 { | |
823 return(style->extrasNr++); | |
824 } | |
825 | |
826 /** | |
827 * xsltAllocateExtraCtxt: | |
828 * @ctxt: an XSLT transformation context | |
829 * | |
830 * Allocate an extra runtime information slot at run-time | |
831 * and return its number | |
832 * This make sure there is a slot ready in the transformation context | |
833 * | |
834 * Returns the number of the slot | |
835 */ | |
836 int | |
837 xsltAllocateExtraCtxt(xsltTransformContextPtr ctxt) | |
838 { | |
839 if (ctxt->extrasNr >= ctxt->extrasMax) { | |
840 int i; | |
841 if (ctxt->extrasNr == 0) { | |
842 ctxt->extrasMax = 20; | |
843 ctxt->extras = (xsltRuntimeExtraPtr) | |
844 xmlMalloc(ctxt->extrasMax * sizeof(xsltRuntimeExtra)); | |
845 if (ctxt->extras == NULL) { | |
846 xsltTransformError(ctxt, NULL, NULL, | |
847 "xsltAllocateExtraCtxt: out of memory\n"); | |
848 return(0); | |
849 } | |
850 for (i = 0;i < ctxt->extrasMax;i++) { | |
851 ctxt->extras[i].info = NULL; | |
852 ctxt->extras[i].deallocate = NULL; | |
853 ctxt->extras[i].val.ptr = NULL; | |
854 } | |
855 | |
856 } else { | |
857 xsltRuntimeExtraPtr tmp; | |
858 | |
859 ctxt->extrasMax += 100; | |
860 tmp = (xsltRuntimeExtraPtr) xmlRealloc(ctxt->extras, | |
861 ctxt->extrasMax * sizeof(xsltRuntimeExtra)); | |
862 if (tmp == NULL) { | |
863 xsltTransformError(ctxt, NULL, NULL, | |
864 "xsltAllocateExtraCtxt: out of memory\n"); | |
865 return(0); | |
866 } | |
867 ctxt->extras = tmp; | |
868 for (i = ctxt->extrasNr;i < ctxt->extrasMax;i++) { | |
869 ctxt->extras[i].info = NULL; | |
870 ctxt->extras[i].deallocate = NULL; | |
871 ctxt->extras[i].val.ptr = NULL; | |
872 } | |
873 } | |
874 } | |
875 return(ctxt->extrasNr++); | |
876 } | |
877 | |
878 /** | |
879 * xsltFreeStylesheetList: | |
880 * @style: an XSLT stylesheet list | |
881 * | |
882 * Free up the memory allocated by the list @style | |
883 */ | |
884 static void | |
885 xsltFreeStylesheetList(xsltStylesheetPtr style) { | |
886 xsltStylesheetPtr next; | |
887 | |
888 while (style != NULL) { | |
889 next = style->next; | |
890 xsltFreeStylesheet(style); | |
891 style = next; | |
892 } | |
893 } | |
894 | |
895 /** | |
896 * xsltCleanupStylesheetTree: | |
897 * | |
898 * @doc: the document-node | |
899 * @node: the element where the stylesheet is rooted at | |
900 * | |
901 * Actually @node need not be the document-element, but | |
902 * currently Libxslt does not support embedded stylesheets. | |
903 * | |
904 * Returns 0 if OK, -1 on API or internal errors. | |
905 */ | |
906 static int | |
907 xsltCleanupStylesheetTree(xmlDocPtr doc ATTRIBUTE_UNUSED, | |
908 xmlNodePtr rootElem ATTRIBUTE_UNUSED) | |
909 { | |
910 #if 0 /* TODO: Currently disabled, since probably not needed. */ | |
911 xmlNodePtr cur; | |
912 | |
913 if ((doc == NULL) || (rootElem == NULL) || | |
914 (rootElem->type != XML_ELEMENT_NODE) || | |
915 (doc != rootElem->doc)) | |
916 return(-1); | |
917 | |
918 /* | |
919 * Cleanup was suggested by Aleksey Sanin: | |
920 * Clear the PSVI field to avoid problems if the | |
921 * node-tree of the stylesheet is intended to be used for | |
922 * further processing by the user (e.g. for compiling it | |
923 * once again - although not recommended). | |
924 */ | |
925 | |
926 cur = rootElem; | |
927 while (cur != NULL) { | |
928 if (cur->type == XML_ELEMENT_NODE) { | |
929 /* | |
930 * Clear the PSVI field. | |
931 */ | |
932 cur->psvi = NULL; | |
933 if (cur->children) { | |
934 cur = cur->children; | |
935 continue; | |
936 } | |
937 } | |
938 | |
939 leave_node: | |
940 if (cur == rootElem) | |
941 break; | |
942 if (cur->next != NULL) | |
943 cur = cur->next; | |
944 else { | |
945 cur = cur->parent; | |
946 if (cur == NULL) | |
947 break; | |
948 goto leave_node; | |
949 } | |
950 } | |
951 #endif /* #if 0 */ | |
952 return(0); | |
953 } | |
954 | |
955 /** | |
956 * xsltFreeStylesheet: | |
957 * @style: an XSLT stylesheet | |
958 * | |
959 * Free up the memory allocated by @style | |
960 */ | |
961 void | |
962 xsltFreeStylesheet(xsltStylesheetPtr style) | |
963 { | |
964 if (style == NULL) | |
965 return; | |
966 | |
967 #ifdef XSLT_REFACTORED | |
968 /* | |
969 * Start with a cleanup of the main stylesheet's doc. | |
970 */ | |
971 if ((style->principal == style) && (style->doc)) | |
972 xsltCleanupStylesheetTree(style->doc, | |
973 xmlDocGetRootElement(style->doc)); | |
974 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
975 /* | |
976 * Restore changed ns-decls before freeing the document. | |
977 */ | |
978 if ((style->doc != NULL) && | |
979 XSLT_HAS_INTERNAL_NSMAP(style)) | |
980 { | |
981 xsltRestoreDocumentNamespaces(XSLT_GET_INTERNAL_NSMAP(style), | |
982 style->doc); | |
983 } | |
984 #endif /* XSLT_REFACTORED_XSLT_NSCOMP */ | |
985 #else | |
986 /* | |
987 * Start with a cleanup of the main stylesheet's doc. | |
988 */ | |
989 if ((style->parent == NULL) && (style->doc)) | |
990 xsltCleanupStylesheetTree(style->doc, | |
991 xmlDocGetRootElement(style->doc)); | |
992 #endif /* XSLT_REFACTORED */ | |
993 | |
994 xsltFreeKeys(style); | |
995 xsltFreeExts(style); | |
996 xsltFreeTemplateHashes(style); | |
997 xsltFreeDecimalFormatList(style); | |
998 xsltFreeTemplateList(style->templates); | |
999 xsltFreeAttributeSetsHashes(style); | |
1000 xsltFreeNamespaceAliasHashes(style); | |
1001 xsltFreeStylePreComps(style); | |
1002 /* | |
1003 * Free documents of all included stylsheet modules of this | |
1004 * stylesheet level. | |
1005 */ | |
1006 xsltFreeStyleDocuments(style); | |
1007 /* | |
1008 * TODO: Best time to shutdown extension stuff? | |
1009 */ | |
1010 xsltShutdownExts(style); | |
1011 | |
1012 if (style->variables != NULL) | |
1013 xsltFreeStackElemList(style->variables); | |
1014 if (style->cdataSection != NULL) | |
1015 xmlHashFree(style->cdataSection, NULL); | |
1016 if (style->stripSpaces != NULL) | |
1017 xmlHashFree(style->stripSpaces, NULL); | |
1018 if (style->nsHash != NULL) | |
1019 xmlHashFree(style->nsHash, NULL); | |
1020 if (style->exclPrefixTab != NULL) | |
1021 xmlFree(style->exclPrefixTab); | |
1022 if (style->method != NULL) | |
1023 xmlFree(style->method); | |
1024 if (style->methodURI != NULL) | |
1025 xmlFree(style->methodURI); | |
1026 if (style->version != NULL) | |
1027 xmlFree(style->version); | |
1028 if (style->encoding != NULL) | |
1029 xmlFree(style->encoding); | |
1030 if (style->doctypePublic != NULL) | |
1031 xmlFree(style->doctypePublic); | |
1032 if (style->doctypeSystem != NULL) | |
1033 xmlFree(style->doctypeSystem); | |
1034 if (style->mediaType != NULL) | |
1035 xmlFree(style->mediaType); | |
1036 if (style->attVTs) | |
1037 xsltFreeAVTList(style->attVTs); | |
1038 if (style->imports != NULL) | |
1039 xsltFreeStylesheetList(style->imports); | |
1040 | |
1041 #ifdef XSLT_REFACTORED | |
1042 /* | |
1043 * If this is the principal stylesheet, then | |
1044 * free its internal data. | |
1045 */ | |
1046 if (style->principal == style) { | |
1047 if (style->principalData) { | |
1048 xsltFreePrincipalStylesheetData(style->principalData); | |
1049 style->principalData = NULL; | |
1050 } | |
1051 } | |
1052 #endif | |
1053 /* | |
1054 * Better to free the main document of this stylesheet level | |
1055 * at the end - so here. | |
1056 */ | |
1057 if (style->doc != NULL) { | |
1058 xmlFreeDoc(style->doc); | |
1059 } | |
1060 | |
1061 #ifdef WITH_XSLT_DEBUG | |
1062 xsltGenericDebug(xsltGenericDebugContext, | |
1063 "freeing dictionary from stylesheet\n"); | |
1064 #endif | |
1065 xmlDictFree(style->dict); | |
1066 | |
1067 memset(style, -1, sizeof(xsltStylesheet)); | |
1068 xmlFree(style); | |
1069 } | |
1070 | |
1071 /************************************************************************ | |
1072 * * | |
1073 * Parsing of an XSLT Stylesheet * | |
1074 * * | |
1075 ************************************************************************/ | |
1076 | |
1077 #ifdef XSLT_REFACTORED | |
1078 /* | |
1079 * This is now performed in an optimized way in xsltParseXSLTTemplate. | |
1080 */ | |
1081 #else | |
1082 /** | |
1083 * xsltGetInheritedNsList: | |
1084 * @style: the stylesheet | |
1085 * @template: the template | |
1086 * @node: the current node | |
1087 * | |
1088 * Search all the namespace applying to a given element except the ones | |
1089 * from excluded output prefixes currently in scope. Initialize the | |
1090 * template inheritedNs list with it. | |
1091 * | |
1092 * Returns the number of entries found | |
1093 */ | |
1094 static int | |
1095 xsltGetInheritedNsList(xsltStylesheetPtr style, | |
1096 xsltTemplatePtr template, | |
1097 xmlNodePtr node) | |
1098 { | |
1099 xmlNsPtr cur; | |
1100 xmlNsPtr *ret = NULL; | |
1101 int nbns = 0; | |
1102 int maxns = 10; | |
1103 int i; | |
1104 | |
1105 if ((style == NULL) || (template == NULL) || (node == NULL) || | |
1106 (template->inheritedNsNr != 0) || (template->inheritedNs != NULL)) | |
1107 return(0); | |
1108 while (node != NULL) { | |
1109 if (node->type == XML_ELEMENT_NODE) { | |
1110 cur = node->nsDef; | |
1111 while (cur != NULL) { | |
1112 if (xmlStrEqual(cur->href, XSLT_NAMESPACE)) | |
1113 goto skip_ns; | |
1114 | |
1115 if ((cur->prefix != NULL) && | |
1116 (xsltCheckExtPrefix(style, cur->prefix))) | |
1117 goto skip_ns; | |
1118 /* | |
1119 * Check if this namespace was excluded. | |
1120 * Note that at this point only the exclusions defined | |
1121 * on the topmost stylesheet element are in the exclusion-list. | |
1122 */ | |
1123 for (i = 0;i < style->exclPrefixNr;i++) { | |
1124 if (xmlStrEqual(cur->href, style->exclPrefixTab[i])) | |
1125 goto skip_ns; | |
1126 } | |
1127 if (ret == NULL) { | |
1128 ret = | |
1129 (xmlNsPtr *) xmlMalloc((maxns + 1) * | |
1130 sizeof(xmlNsPtr)); | |
1131 if (ret == NULL) { | |
1132 xmlGenericError(xmlGenericErrorContext, | |
1133 "xsltGetInheritedNsList : out of memory!
\n"); | |
1134 return(0); | |
1135 } | |
1136 ret[nbns] = NULL; | |
1137 } | |
1138 /* | |
1139 * Skip shadowed namespace bindings. | |
1140 */ | |
1141 for (i = 0; i < nbns; i++) { | |
1142 if ((cur->prefix == ret[i]->prefix) || | |
1143 (xmlStrEqual(cur->prefix, ret[i]->prefix))) | |
1144 break; | |
1145 } | |
1146 if (i >= nbns) { | |
1147 if (nbns >= maxns) { | |
1148 maxns *= 2; | |
1149 ret = (xmlNsPtr *) xmlRealloc(ret, | |
1150 (maxns + | |
1151 1) * | |
1152 sizeof(xmlNsPtr)); | |
1153 if (ret == NULL) { | |
1154 xmlGenericError(xmlGenericErrorContext, | |
1155 "xsltGetInheritedNsList : realloc fa
iled!\n"); | |
1156 return(0); | |
1157 } | |
1158 } | |
1159 ret[nbns++] = cur; | |
1160 ret[nbns] = NULL; | |
1161 } | |
1162 skip_ns: | |
1163 cur = cur->next; | |
1164 } | |
1165 } | |
1166 node = node->parent; | |
1167 } | |
1168 if (nbns != 0) { | |
1169 #ifdef WITH_XSLT_DEBUG_PARSING | |
1170 xsltGenericDebug(xsltGenericDebugContext, | |
1171 "template has %d inherited namespaces\n", nbns); | |
1172 #endif | |
1173 template->inheritedNsNr = nbns; | |
1174 template->inheritedNs = ret; | |
1175 } | |
1176 return (nbns); | |
1177 } | |
1178 #endif /* else of XSLT_REFACTORED */ | |
1179 | |
1180 /** | |
1181 * xsltParseStylesheetOutput: | |
1182 * @style: the XSLT stylesheet | |
1183 * @cur: the "output" element | |
1184 * | |
1185 * parse an XSLT stylesheet output element and record | |
1186 * information related to the stylesheet output | |
1187 */ | |
1188 | |
1189 void | |
1190 xsltParseStylesheetOutput(xsltStylesheetPtr style, xmlNodePtr cur) | |
1191 { | |
1192 xmlChar *elements, | |
1193 *prop; | |
1194 xmlChar *element, | |
1195 *end; | |
1196 | |
1197 if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE)) | |
1198 return; | |
1199 | |
1200 prop = xmlGetNsProp(cur, (const xmlChar *) "version", NULL); | |
1201 if (prop != NULL) { | |
1202 if (style->version != NULL) | |
1203 xmlFree(style->version); | |
1204 style->version = prop; | |
1205 } | |
1206 | |
1207 prop = xmlGetNsProp(cur, (const xmlChar *) "encoding", NULL); | |
1208 if (prop != NULL) { | |
1209 if (style->encoding != NULL) | |
1210 xmlFree(style->encoding); | |
1211 style->encoding = prop; | |
1212 } | |
1213 | |
1214 /* relaxed to support xt:document | |
1215 * TODO KB: What does "relaxed to support xt:document" mean? | |
1216 */ | |
1217 prop = xmlGetNsProp(cur, (const xmlChar *) "method", NULL); | |
1218 if (prop != NULL) { | |
1219 const xmlChar *URI; | |
1220 | |
1221 if (style->method != NULL) | |
1222 xmlFree(style->method); | |
1223 style->method = NULL; | |
1224 if (style->methodURI != NULL) | |
1225 xmlFree(style->methodURI); | |
1226 style->methodURI = NULL; | |
1227 | |
1228 /* | |
1229 * TODO: Don't use xsltGetQNameURI(). | |
1230 */ | |
1231 URI = xsltGetQNameURI(cur, &prop); | |
1232 if (prop == NULL) { | |
1233 if (style != NULL) style->errors++; | |
1234 } else if (URI == NULL) { | |
1235 if ((xmlStrEqual(prop, (const xmlChar *) "xml")) || | |
1236 (xmlStrEqual(prop, (const xmlChar *) "html")) || | |
1237 (xmlStrEqual(prop, (const xmlChar *) "text"))) { | |
1238 style->method = prop; | |
1239 } else { | |
1240 xsltTransformError(NULL, style, cur, | |
1241 "invalid value for method: %s\n", prop); | |
1242 if (style != NULL) style->warnings++; | |
1243 } | |
1244 } else { | |
1245 style->method = prop; | |
1246 style->methodURI = xmlStrdup(URI); | |
1247 } | |
1248 } | |
1249 | |
1250 prop = xmlGetNsProp(cur, (const xmlChar *) "doctype-system", NULL); | |
1251 if (prop != NULL) { | |
1252 if (style->doctypeSystem != NULL) | |
1253 xmlFree(style->doctypeSystem); | |
1254 style->doctypeSystem = prop; | |
1255 } | |
1256 | |
1257 prop = xmlGetNsProp(cur, (const xmlChar *) "doctype-public", NULL); | |
1258 if (prop != NULL) { | |
1259 if (style->doctypePublic != NULL) | |
1260 xmlFree(style->doctypePublic); | |
1261 style->doctypePublic = prop; | |
1262 } | |
1263 | |
1264 prop = xmlGetNsProp(cur, (const xmlChar *) "standalone", NULL); | |
1265 if (prop != NULL) { | |
1266 if (xmlStrEqual(prop, (const xmlChar *) "yes")) { | |
1267 style->standalone = 1; | |
1268 } else if (xmlStrEqual(prop, (const xmlChar *) "no")) { | |
1269 style->standalone = 0; | |
1270 } else { | |
1271 xsltTransformError(NULL, style, cur, | |
1272 "invalid value for standalone: %s\n", prop); | |
1273 style->errors++; | |
1274 } | |
1275 xmlFree(prop); | |
1276 } | |
1277 | |
1278 prop = xmlGetNsProp(cur, (const xmlChar *) "indent", NULL); | |
1279 if (prop != NULL) { | |
1280 if (xmlStrEqual(prop, (const xmlChar *) "yes")) { | |
1281 style->indent = 1; | |
1282 } else if (xmlStrEqual(prop, (const xmlChar *) "no")) { | |
1283 style->indent = 0; | |
1284 } else { | |
1285 xsltTransformError(NULL, style, cur, | |
1286 "invalid value for indent: %s\n", prop); | |
1287 style->errors++; | |
1288 } | |
1289 xmlFree(prop); | |
1290 } | |
1291 | |
1292 prop = xmlGetNsProp(cur, (const xmlChar *) "omit-xml-declaration", NULL); | |
1293 if (prop != NULL) { | |
1294 if (xmlStrEqual(prop, (const xmlChar *) "yes")) { | |
1295 style->omitXmlDeclaration = 1; | |
1296 } else if (xmlStrEqual(prop, (const xmlChar *) "no")) { | |
1297 style->omitXmlDeclaration = 0; | |
1298 } else { | |
1299 xsltTransformError(NULL, style, cur, | |
1300 "invalid value for omit-xml-declaration: %s\n", | |
1301 prop); | |
1302 style->errors++; | |
1303 } | |
1304 xmlFree(prop); | |
1305 } | |
1306 | |
1307 elements = xmlGetNsProp(cur, (const xmlChar *) "cdata-section-elements", | |
1308 NULL); | |
1309 if (elements != NULL) { | |
1310 if (style->cdataSection == NULL) | |
1311 style->cdataSection = xmlHashCreate(10); | |
1312 if (style->cdataSection == NULL) | |
1313 return; | |
1314 | |
1315 element = elements; | |
1316 while (*element != 0) { | |
1317 while (IS_BLANK(*element)) | |
1318 element++; | |
1319 if (*element == 0) | |
1320 break; | |
1321 end = element; | |
1322 while ((*end != 0) && (!IS_BLANK(*end))) | |
1323 end++; | |
1324 element = xmlStrndup(element, end - element); | |
1325 if (element) { | |
1326 #ifdef WITH_XSLT_DEBUG_PARSING | |
1327 xsltGenericDebug(xsltGenericDebugContext, | |
1328 "add cdata section output element %s\n", | |
1329 element); | |
1330 #endif | |
1331 if (xmlValidateQName(BAD_CAST element, 0) != 0) { | |
1332 xsltTransformError(NULL, style, cur, | |
1333 "Attribute 'cdata-section-elements': The value " | |
1334 "'%s' is not a valid QName.\n", element); | |
1335 xmlFree(element); | |
1336 style->errors++; | |
1337 } else { | |
1338 const xmlChar *URI; | |
1339 | |
1340 /* | |
1341 * TODO: Don't use xsltGetQNameURI(). | |
1342 */ | |
1343 URI = xsltGetQNameURI(cur, &element); | |
1344 if (element == NULL) { | |
1345 /* | |
1346 * TODO: We'll report additionally an error | |
1347 * via the stylesheet's error handling. | |
1348 */ | |
1349 xsltTransformError(NULL, style, cur, | |
1350 "Attribute 'cdata-section-elements': The value " | |
1351 "'%s' is not a valid QName.\n", element); | |
1352 style->errors++; | |
1353 } else { | |
1354 xmlNsPtr ns; | |
1355 | |
1356 /* | |
1357 * XSLT-1.0 "Each QName is expanded into an | |
1358 * expanded-name using the namespace declarations in | |
1359 * effect on the xsl:output element in which the QName | |
1360 * occurs; if there is a default namespace, it is used | |
1361 * for QNames that do not have a prefix" | |
1362 * NOTE: Fix of bug #339570. | |
1363 */ | |
1364 if (URI == NULL) { | |
1365 ns = xmlSearchNs(style->doc, cur, NULL); | |
1366 if (ns != NULL) | |
1367 URI = ns->href; | |
1368 } | |
1369 xmlHashAddEntry2(style->cdataSection, element, URI, | |
1370 (void *) "cdata"); | |
1371 xmlFree(element); | |
1372 } | |
1373 } | |
1374 } | |
1375 element = end; | |
1376 } | |
1377 xmlFree(elements); | |
1378 } | |
1379 | |
1380 prop = xmlGetNsProp(cur, (const xmlChar *) "media-type", NULL); | |
1381 if (prop != NULL) { | |
1382 if (style->mediaType) | |
1383 xmlFree(style->mediaType); | |
1384 style->mediaType = prop; | |
1385 } | |
1386 if (cur->children != NULL) { | |
1387 xsltParseContentError(style, cur->children); | |
1388 } | |
1389 } | |
1390 | |
1391 /** | |
1392 * xsltParseStylesheetDecimalFormat: | |
1393 * @style: the XSLT stylesheet | |
1394 * @cur: the "decimal-format" element | |
1395 * | |
1396 * <!-- Category: top-level-element --> | |
1397 * <xsl:decimal-format | |
1398 * name = qname, decimal-separator = char, grouping-separator = char, | |
1399 * infinity = string, minus-sign = char, NaN = string, percent = char | |
1400 * per-mille = char, zero-digit = char, digit = char, | |
1401 * pattern-separator = char /> | |
1402 * | |
1403 * parse an XSLT stylesheet decimal-format element and | |
1404 * and record the formatting characteristics | |
1405 */ | |
1406 static void | |
1407 xsltParseStylesheetDecimalFormat(xsltStylesheetPtr style, xmlNodePtr cur) | |
1408 { | |
1409 xmlChar *prop; | |
1410 xsltDecimalFormatPtr format; | |
1411 xsltDecimalFormatPtr iter; | |
1412 | |
1413 if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE)) | |
1414 return; | |
1415 | |
1416 format = style->decimalFormat; | |
1417 | |
1418 prop = xmlGetNsProp(cur, BAD_CAST("name"), NULL); | |
1419 if (prop != NULL) { | |
1420 const xmlChar *nsUri; | |
1421 | |
1422 if (xmlValidateQName(prop, 0) != 0) { | |
1423 xsltTransformError(NULL, style, cur, | |
1424 "xsl:decimal-format: Invalid QName '%s'.\n", prop); | |
1425 style->warnings++; | |
1426 xmlFree(prop); | |
1427 return; | |
1428 } | |
1429 /* | |
1430 * TODO: Don't use xsltGetQNameURI(). | |
1431 */ | |
1432 nsUri = xsltGetQNameURI(cur, &prop); | |
1433 if (prop == NULL) { | |
1434 style->warnings++; | |
1435 return; | |
1436 } | |
1437 format = xsltDecimalFormatGetByQName(style, nsUri, prop); | |
1438 if (format != NULL) { | |
1439 xsltTransformError(NULL, style, cur, | |
1440 "xsltParseStylestyleDecimalFormat: %s already exists\n", prop); | |
1441 style->warnings++; | |
1442 xmlFree(prop); | |
1443 return; | |
1444 } | |
1445 format = xsltNewDecimalFormat(nsUri, prop); | |
1446 if (format == NULL) { | |
1447 xsltTransformError(NULL, style, cur, | |
1448 "xsltParseStylestyleDecimalFormat: failed creating new decimal-format\n"); | |
1449 style->errors++; | |
1450 xmlFree(prop); | |
1451 return; | |
1452 } | |
1453 /* Append new decimal-format structure */ | |
1454 for (iter = style->decimalFormat; iter->next; iter = iter->next) | |
1455 ; | |
1456 if (iter) | |
1457 iter->next = format; | |
1458 } | |
1459 | |
1460 prop = xmlGetNsProp(cur, (const xmlChar *)"decimal-separator", NULL); | |
1461 if (prop != NULL) { | |
1462 if (format->decimalPoint != NULL) xmlFree(format->decimalPoint); | |
1463 format->decimalPoint = prop; | |
1464 } | |
1465 | |
1466 prop = xmlGetNsProp(cur, (const xmlChar *)"grouping-separator", NULL); | |
1467 if (prop != NULL) { | |
1468 if (format->grouping != NULL) xmlFree(format->grouping); | |
1469 format->grouping = prop; | |
1470 } | |
1471 | |
1472 prop = xmlGetNsProp(cur, (const xmlChar *)"infinity", NULL); | |
1473 if (prop != NULL) { | |
1474 if (format->infinity != NULL) xmlFree(format->infinity); | |
1475 format->infinity = prop; | |
1476 } | |
1477 | |
1478 prop = xmlGetNsProp(cur, (const xmlChar *)"minus-sign", NULL); | |
1479 if (prop != NULL) { | |
1480 if (format->minusSign != NULL) xmlFree(format->minusSign); | |
1481 format->minusSign = prop; | |
1482 } | |
1483 | |
1484 prop = xmlGetNsProp(cur, (const xmlChar *)"NaN", NULL); | |
1485 if (prop != NULL) { | |
1486 if (format->noNumber != NULL) xmlFree(format->noNumber); | |
1487 format->noNumber = prop; | |
1488 } | |
1489 | |
1490 prop = xmlGetNsProp(cur, (const xmlChar *)"percent", NULL); | |
1491 if (prop != NULL) { | |
1492 if (format->percent != NULL) xmlFree(format->percent); | |
1493 format->percent = prop; | |
1494 } | |
1495 | |
1496 prop = xmlGetNsProp(cur, (const xmlChar *)"per-mille", NULL); | |
1497 if (prop != NULL) { | |
1498 if (format->permille != NULL) xmlFree(format->permille); | |
1499 format->permille = prop; | |
1500 } | |
1501 | |
1502 prop = xmlGetNsProp(cur, (const xmlChar *)"zero-digit", NULL); | |
1503 if (prop != NULL) { | |
1504 if (format->zeroDigit != NULL) xmlFree(format->zeroDigit); | |
1505 format->zeroDigit = prop; | |
1506 } | |
1507 | |
1508 prop = xmlGetNsProp(cur, (const xmlChar *)"digit", NULL); | |
1509 if (prop != NULL) { | |
1510 if (format->digit != NULL) xmlFree(format->digit); | |
1511 format->digit = prop; | |
1512 } | |
1513 | |
1514 prop = xmlGetNsProp(cur, (const xmlChar *)"pattern-separator", NULL); | |
1515 if (prop != NULL) { | |
1516 if (format->patternSeparator != NULL) xmlFree(format->patternSeparator); | |
1517 format->patternSeparator = prop; | |
1518 } | |
1519 if (cur->children != NULL) { | |
1520 xsltParseContentError(style, cur->children); | |
1521 } | |
1522 } | |
1523 | |
1524 /** | |
1525 * xsltParseStylesheetPreserveSpace: | |
1526 * @style: the XSLT stylesheet | |
1527 * @cur: the "preserve-space" element | |
1528 * | |
1529 * parse an XSLT stylesheet preserve-space element and record | |
1530 * elements needing preserving | |
1531 */ | |
1532 | |
1533 static void | |
1534 xsltParseStylesheetPreserveSpace(xsltStylesheetPtr style, xmlNodePtr cur) { | |
1535 xmlChar *elements; | |
1536 xmlChar *element, *end; | |
1537 | |
1538 if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE)) | |
1539 return; | |
1540 | |
1541 elements = xmlGetNsProp(cur, (const xmlChar *)"elements", NULL); | |
1542 if (elements == NULL) { | |
1543 xsltTransformError(NULL, style, cur, | |
1544 "xsltParseStylesheetPreserveSpace: missing elements attribute\n"); | |
1545 if (style != NULL) style->warnings++; | |
1546 return; | |
1547 } | |
1548 | |
1549 if (style->stripSpaces == NULL) | |
1550 style->stripSpaces = xmlHashCreate(10); | |
1551 if (style->stripSpaces == NULL) | |
1552 return; | |
1553 | |
1554 element = elements; | |
1555 while (*element != 0) { | |
1556 while (IS_BLANK(*element)) element++; | |
1557 if (*element == 0) | |
1558 break; | |
1559 end = element; | |
1560 while ((*end != 0) && (!IS_BLANK(*end))) end++; | |
1561 element = xmlStrndup(element, end - element); | |
1562 if (element) { | |
1563 #ifdef WITH_XSLT_DEBUG_PARSING | |
1564 xsltGenericDebug(xsltGenericDebugContext, | |
1565 "add preserved space element %s\n", element); | |
1566 #endif | |
1567 if (xmlStrEqual(element, (const xmlChar *)"*")) { | |
1568 style->stripAll = -1; | |
1569 } else { | |
1570 const xmlChar *URI; | |
1571 | |
1572 /* | |
1573 * TODO: Don't use xsltGetQNameURI(). | |
1574 */ | |
1575 URI = xsltGetQNameURI(cur, &element); | |
1576 | |
1577 xmlHashAddEntry2(style->stripSpaces, element, URI, | |
1578 (xmlChar *) "preserve"); | |
1579 } | |
1580 xmlFree(element); | |
1581 } | |
1582 element = end; | |
1583 } | |
1584 xmlFree(elements); | |
1585 if (cur->children != NULL) { | |
1586 xsltParseContentError(style, cur->children); | |
1587 } | |
1588 } | |
1589 | |
1590 #ifdef XSLT_REFACTORED | |
1591 #else | |
1592 /** | |
1593 * xsltParseStylesheetExtPrefix: | |
1594 * @style: the XSLT stylesheet | |
1595 * @template: the "extension-element-prefixes" prefix | |
1596 * | |
1597 * parse an XSLT stylesheet's "extension-element-prefix" attribute value | |
1598 * and register the namespaces of extension instruction. | |
1599 * SPEC "A namespace is designated as an extension namespace by using | |
1600 * an extension-element-prefixes attribute on: | |
1601 * 1) an xsl:stylesheet element | |
1602 * 2) an xsl:extension-element-prefixes attribute on a | |
1603 * literal result element | |
1604 * 3) an extension instruction." | |
1605 */ | |
1606 static void | |
1607 xsltParseStylesheetExtPrefix(xsltStylesheetPtr style, xmlNodePtr cur, | |
1608 int isXsltElem) { | |
1609 xmlChar *prefixes; | |
1610 xmlChar *prefix, *end; | |
1611 | |
1612 if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE)) | |
1613 return; | |
1614 | |
1615 if (isXsltElem) { | |
1616 /* For xsl:stylesheet/xsl:transform. */ | |
1617 prefixes = xmlGetNsProp(cur, | |
1618 (const xmlChar *)"extension-element-prefixes", NULL); | |
1619 } else { | |
1620 /* For literal result elements and extension instructions. */ | |
1621 prefixes = xmlGetNsProp(cur, | |
1622 (const xmlChar *)"extension-element-prefixes", XSLT_NAMESPACE); | |
1623 } | |
1624 if (prefixes == NULL) { | |
1625 return; | |
1626 } | |
1627 | |
1628 prefix = prefixes; | |
1629 while (*prefix != 0) { | |
1630 while (IS_BLANK(*prefix)) prefix++; | |
1631 if (*prefix == 0) | |
1632 break; | |
1633 end = prefix; | |
1634 while ((*end != 0) && (!IS_BLANK(*end))) end++; | |
1635 prefix = xmlStrndup(prefix, end - prefix); | |
1636 if (prefix) { | |
1637 xmlNsPtr ns; | |
1638 | |
1639 if (xmlStrEqual(prefix, (const xmlChar *)"#default")) | |
1640 ns = xmlSearchNs(style->doc, cur, NULL); | |
1641 else | |
1642 ns = xmlSearchNs(style->doc, cur, prefix); | |
1643 if (ns == NULL) { | |
1644 xsltTransformError(NULL, style, cur, | |
1645 "xsl:extension-element-prefix : undefined namespace %s\n", | |
1646 prefix); | |
1647 if (style != NULL) style->warnings++; | |
1648 } else { | |
1649 #ifdef WITH_XSLT_DEBUG_PARSING | |
1650 xsltGenericDebug(xsltGenericDebugContext, | |
1651 "add extension prefix %s\n", prefix); | |
1652 #endif | |
1653 xsltRegisterExtPrefix(style, prefix, ns->href); | |
1654 } | |
1655 xmlFree(prefix); | |
1656 } | |
1657 prefix = end; | |
1658 } | |
1659 xmlFree(prefixes); | |
1660 } | |
1661 #endif /* else of XSLT_REFACTORED */ | |
1662 | |
1663 /** | |
1664 * xsltParseStylesheetStripSpace: | |
1665 * @style: the XSLT stylesheet | |
1666 * @cur: the "strip-space" element | |
1667 * | |
1668 * parse an XSLT stylesheet's strip-space element and record | |
1669 * the elements needing stripping | |
1670 */ | |
1671 | |
1672 static void | |
1673 xsltParseStylesheetStripSpace(xsltStylesheetPtr style, xmlNodePtr cur) { | |
1674 xmlChar *elements; | |
1675 xmlChar *element, *end; | |
1676 | |
1677 if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE)) | |
1678 return; | |
1679 | |
1680 elements = xmlGetNsProp(cur, (const xmlChar *)"elements", NULL); | |
1681 if (elements == NULL) { | |
1682 xsltTransformError(NULL, style, cur, | |
1683 "xsltParseStylesheetStripSpace: missing elements attribute\n"); | |
1684 if (style != NULL) style->warnings++; | |
1685 return; | |
1686 } | |
1687 | |
1688 if (style->stripSpaces == NULL) | |
1689 style->stripSpaces = xmlHashCreate(10); | |
1690 if (style->stripSpaces == NULL) | |
1691 return; | |
1692 | |
1693 element = elements; | |
1694 while (*element != 0) { | |
1695 while (IS_BLANK(*element)) element++; | |
1696 if (*element == 0) | |
1697 break; | |
1698 end = element; | |
1699 while ((*end != 0) && (!IS_BLANK(*end))) end++; | |
1700 element = xmlStrndup(element, end - element); | |
1701 if (element) { | |
1702 #ifdef WITH_XSLT_DEBUG_PARSING | |
1703 xsltGenericDebug(xsltGenericDebugContext, | |
1704 "add stripped space element %s\n", element); | |
1705 #endif | |
1706 if (xmlStrEqual(element, (const xmlChar *)"*")) { | |
1707 style->stripAll = 1; | |
1708 } else { | |
1709 const xmlChar *URI; | |
1710 | |
1711 /* | |
1712 * TODO: Don't use xsltGetQNameURI(). | |
1713 */ | |
1714 URI = xsltGetQNameURI(cur, &element); | |
1715 | |
1716 xmlHashAddEntry2(style->stripSpaces, element, URI, | |
1717 (xmlChar *) "strip"); | |
1718 } | |
1719 xmlFree(element); | |
1720 } | |
1721 element = end; | |
1722 } | |
1723 xmlFree(elements); | |
1724 if (cur->children != NULL) { | |
1725 xsltParseContentError(style, cur->children); | |
1726 } | |
1727 } | |
1728 | |
1729 #ifdef XSLT_REFACTORED | |
1730 #else | |
1731 /** | |
1732 * xsltParseStylesheetExcludePrefix: | |
1733 * @style: the XSLT stylesheet | |
1734 * @cur: the current point in the stylesheet | |
1735 * | |
1736 * parse an XSLT stylesheet exclude prefix and record | |
1737 * namespaces needing stripping | |
1738 * | |
1739 * Returns the number of Excluded prefixes added at that level | |
1740 */ | |
1741 | |
1742 static int | |
1743 xsltParseStylesheetExcludePrefix(xsltStylesheetPtr style, xmlNodePtr cur, | |
1744 int isXsltElem) | |
1745 { | |
1746 int nb = 0; | |
1747 xmlChar *prefixes; | |
1748 xmlChar *prefix, *end; | |
1749 | |
1750 if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE)) | |
1751 return(0); | |
1752 | |
1753 if (isXsltElem) | |
1754 prefixes = xmlGetNsProp(cur, | |
1755 (const xmlChar *)"exclude-result-prefixes", NULL); | |
1756 else | |
1757 prefixes = xmlGetNsProp(cur, | |
1758 (const xmlChar *)"exclude-result-prefixes", XSLT_NAMESPACE); | |
1759 | |
1760 if (prefixes == NULL) { | |
1761 return(0); | |
1762 } | |
1763 | |
1764 prefix = prefixes; | |
1765 while (*prefix != 0) { | |
1766 while (IS_BLANK(*prefix)) prefix++; | |
1767 if (*prefix == 0) | |
1768 break; | |
1769 end = prefix; | |
1770 while ((*end != 0) && (!IS_BLANK(*end))) end++; | |
1771 prefix = xmlStrndup(prefix, end - prefix); | |
1772 if (prefix) { | |
1773 xmlNsPtr ns; | |
1774 | |
1775 if (xmlStrEqual(prefix, (const xmlChar *)"#default")) | |
1776 ns = xmlSearchNs(style->doc, cur, NULL); | |
1777 else | |
1778 ns = xmlSearchNs(style->doc, cur, prefix); | |
1779 if (ns == NULL) { | |
1780 xsltTransformError(NULL, style, cur, | |
1781 "xsl:exclude-result-prefixes : undefined namespace %s\n", | |
1782 prefix); | |
1783 if (style != NULL) style->warnings++; | |
1784 } else { | |
1785 if (exclPrefixPush(style, (xmlChar *) ns->href) >= 0) { | |
1786 #ifdef WITH_XSLT_DEBUG_PARSING | |
1787 xsltGenericDebug(xsltGenericDebugContext, | |
1788 "exclude result prefix %s\n", prefix); | |
1789 #endif | |
1790 nb++; | |
1791 } | |
1792 } | |
1793 xmlFree(prefix); | |
1794 } | |
1795 prefix = end; | |
1796 } | |
1797 xmlFree(prefixes); | |
1798 return(nb); | |
1799 } | |
1800 #endif /* else of XSLT_REFACTORED */ | |
1801 | |
1802 #ifdef XSLT_REFACTORED | |
1803 | |
1804 /* | |
1805 * xsltTreeEnsureXMLDecl: | |
1806 * @doc: the doc | |
1807 * | |
1808 * BIG NOTE: | |
1809 * This was copy&pasted from Libxml2's xmlTreeEnsureXMLDecl() in "tree.c". | |
1810 * Ensures that there is an XML namespace declaration on the doc. | |
1811 * | |
1812 * Returns the XML ns-struct or NULL on API and internal errors. | |
1813 */ | |
1814 static xmlNsPtr | |
1815 xsltTreeEnsureXMLDecl(xmlDocPtr doc) | |
1816 { | |
1817 if (doc == NULL) | |
1818 return (NULL); | |
1819 if (doc->oldNs != NULL) | |
1820 return (doc->oldNs); | |
1821 { | |
1822 xmlNsPtr ns; | |
1823 ns = (xmlNsPtr) xmlMalloc(sizeof(xmlNs)); | |
1824 if (ns == NULL) { | |
1825 xmlGenericError(xmlGenericErrorContext, | |
1826 "xsltTreeEnsureXMLDecl: Failed to allocate " | |
1827 "the XML namespace.\n"); | |
1828 return (NULL); | |
1829 } | |
1830 memset(ns, 0, sizeof(xmlNs)); | |
1831 ns->type = XML_LOCAL_NAMESPACE; | |
1832 /* | |
1833 * URGENT TODO: revisit this. | |
1834 */ | |
1835 #ifdef LIBXML_NAMESPACE_DICT | |
1836 if (doc->dict) | |
1837 ns->href = xmlDictLookup(doc->dict, XML_XML_NAMESPACE, -1); | |
1838 else | |
1839 ns->href = xmlStrdup(XML_XML_NAMESPACE); | |
1840 #else | |
1841 ns->href = xmlStrdup(XML_XML_NAMESPACE); | |
1842 #endif | |
1843 ns->prefix = xmlStrdup((const xmlChar *)"xml"); | |
1844 doc->oldNs = ns; | |
1845 return (ns); | |
1846 } | |
1847 } | |
1848 | |
1849 /* | |
1850 * xsltTreeAcquireStoredNs: | |
1851 * @doc: the doc | |
1852 * @nsName: the namespace name | |
1853 * @prefix: the prefix | |
1854 * | |
1855 * BIG NOTE: | |
1856 * This was copy&pasted from Libxml2's xmlDOMWrapStoreNs() in "tree.c". | |
1857 * Creates or reuses an xmlNs struct on doc->oldNs with | |
1858 * the given prefix and namespace name. | |
1859 * | |
1860 * Returns the aquired ns struct or NULL in case of an API | |
1861 * or internal error. | |
1862 */ | |
1863 static xmlNsPtr | |
1864 xsltTreeAcquireStoredNs(xmlDocPtr doc, | |
1865 const xmlChar *nsName, | |
1866 const xmlChar *prefix) | |
1867 { | |
1868 xmlNsPtr ns; | |
1869 | |
1870 if (doc == NULL) | |
1871 return (NULL); | |
1872 if (doc->oldNs != NULL) | |
1873 ns = doc->oldNs; | |
1874 else | |
1875 ns = xsltTreeEnsureXMLDecl(doc); | |
1876 if (ns == NULL) | |
1877 return (NULL); | |
1878 if (ns->next != NULL) { | |
1879 /* Reuse. */ | |
1880 ns = ns->next; | |
1881 while (ns != NULL) { | |
1882 if ((ns->prefix == NULL) != (prefix == NULL)) { | |
1883 /* NOP */ | |
1884 } else if (prefix == NULL) { | |
1885 if (xmlStrEqual(ns->href, nsName)) | |
1886 return (ns); | |
1887 } else { | |
1888 if ((ns->prefix[0] == prefix[0]) && | |
1889 xmlStrEqual(ns->prefix, prefix) && | |
1890 xmlStrEqual(ns->href, nsName)) | |
1891 return (ns); | |
1892 | |
1893 } | |
1894 if (ns->next == NULL) | |
1895 break; | |
1896 ns = ns->next; | |
1897 } | |
1898 } | |
1899 /* Create. */ | |
1900 ns->next = xmlNewNs(NULL, nsName, prefix); | |
1901 return (ns->next); | |
1902 } | |
1903 | |
1904 /** | |
1905 * xsltLREBuildEffectiveNs: | |
1906 * | |
1907 * Apply ns-aliasing on the namespace of the given @elem and | |
1908 * its attributes. | |
1909 */ | |
1910 static int | |
1911 xsltLREBuildEffectiveNs(xsltCompilerCtxtPtr cctxt, | |
1912 xmlNodePtr elem) | |
1913 { | |
1914 xmlNsPtr ns; | |
1915 xsltNsAliasPtr alias; | |
1916 | |
1917 if ((cctxt == NULL) || (elem == NULL)) | |
1918 return(-1); | |
1919 if ((cctxt->nsAliases == NULL) || (! cctxt->hasNsAliases)) | |
1920 return(0); | |
1921 | |
1922 alias = cctxt->nsAliases; | |
1923 while (alias != NULL) { | |
1924 if ( /* If both namespaces are NULL... */ | |
1925 ( (elem->ns == NULL) && | |
1926 ((alias->literalNs == NULL) || | |
1927 (alias->literalNs->href == NULL)) ) || | |
1928 /* ... or both namespace are equal */ | |
1929 ( (elem->ns != NULL) && | |
1930 (alias->literalNs != NULL) && | |
1931 xmlStrEqual(elem->ns->href, alias->literalNs->href) ) ) | |
1932 { | |
1933 if ((alias->targetNs != NULL) && | |
1934 (alias->targetNs->href != NULL)) | |
1935 { | |
1936 /* | |
1937 * Convert namespace. | |
1938 */ | |
1939 if (elem->doc == alias->docOfTargetNs) { | |
1940 /* | |
1941 * This is the nice case: same docs. | |
1942 * This will eventually assign a ns-decl which | |
1943 * is shadowed, but this has no negative effect on | |
1944 * the generation of the result tree. | |
1945 */ | |
1946 elem->ns = alias->targetNs; | |
1947 } else { | |
1948 /* | |
1949 * This target xmlNs originates from a different | |
1950 * stylesheet tree. Try to locate it in the | |
1951 * in-scope namespaces. | |
1952 * OPTIMIZE TODO: Use the compiler-node-info inScopeNs. | |
1953 */ | |
1954 ns = xmlSearchNs(elem->doc, elem, | |
1955 alias->targetNs->prefix); | |
1956 /* | |
1957 * If no matching ns-decl found, then assign a | |
1958 * ns-decl stored in xmlDoc. | |
1959 */ | |
1960 if ((ns == NULL) || | |
1961 (! xmlStrEqual(ns->href, alias->targetNs->href))) | |
1962 { | |
1963 /* | |
1964 * BIG NOTE: The use of xsltTreeAcquireStoredNs() | |
1965 * is not very efficient, but currently I don't | |
1966 * see an other way of *safely* changing a node's | |
1967 * namespace, since the xmlNs struct in | |
1968 * alias->targetNs might come from an other | |
1969 * stylesheet tree. So we need to anchor it in the | |
1970 * current document, without adding it to the tree, | |
1971 * which would otherwise change the in-scope-ns | |
1972 * semantic of the tree. | |
1973 */ | |
1974 ns = xsltTreeAcquireStoredNs(elem->doc, | |
1975 alias->targetNs->href, | |
1976 alias->targetNs->prefix); | |
1977 | |
1978 if (ns == NULL) { | |
1979 xsltTransformError(NULL, cctxt->style, elem, | |
1980 "Internal error in " | |
1981 "xsltLREBuildEffectiveNs(): " | |
1982 "failed to acquire a stored " | |
1983 "ns-declaration.\n"); | |
1984 cctxt->style->errors++; | |
1985 return(-1); | |
1986 | |
1987 } | |
1988 } | |
1989 elem->ns = ns; | |
1990 } | |
1991 } else { | |
1992 /* | |
1993 * Move into or leave in the NULL namespace. | |
1994 */ | |
1995 elem->ns = NULL; | |
1996 } | |
1997 break; | |
1998 } | |
1999 alias = alias->next; | |
2000 } | |
2001 /* | |
2002 * Same with attributes of literal result elements. | |
2003 */ | |
2004 if (elem->properties != NULL) { | |
2005 xmlAttrPtr attr = elem->properties; | |
2006 | |
2007 while (attr != NULL) { | |
2008 if (attr->ns == NULL) { | |
2009 attr = attr->next; | |
2010 continue; | |
2011 } | |
2012 alias = cctxt->nsAliases; | |
2013 while (alias != NULL) { | |
2014 if ( /* If both namespaces are NULL... */ | |
2015 ( (elem->ns == NULL) && | |
2016 ((alias->literalNs == NULL) || | |
2017 (alias->literalNs->href == NULL)) ) || | |
2018 /* ... or both namespace are equal */ | |
2019 ( (elem->ns != NULL) && | |
2020 (alias->literalNs != NULL) && | |
2021 xmlStrEqual(elem->ns->href, alias->literalNs->href) ) ) | |
2022 { | |
2023 if ((alias->targetNs != NULL) && | |
2024 (alias->targetNs->href != NULL)) | |
2025 { | |
2026 if (elem->doc == alias->docOfTargetNs) { | |
2027 elem->ns = alias->targetNs; | |
2028 } else { | |
2029 ns = xmlSearchNs(elem->doc, elem, | |
2030 alias->targetNs->prefix); | |
2031 if ((ns == NULL) || | |
2032 (! xmlStrEqual(ns->href, alias->targetNs->href))
) | |
2033 { | |
2034 ns = xsltTreeAcquireStoredNs(elem->doc, | |
2035 alias->targetNs->href, | |
2036 alias->targetNs->prefix); | |
2037 | |
2038 if (ns == NULL) { | |
2039 xsltTransformError(NULL, cctxt->style, elem, | |
2040 "Internal error in " | |
2041 "xsltLREBuildEffectiveNs(): " | |
2042 "failed to acquire a stored " | |
2043 "ns-declaration.\n"); | |
2044 cctxt->style->errors++; | |
2045 return(-1); | |
2046 | |
2047 } | |
2048 } | |
2049 elem->ns = ns; | |
2050 } | |
2051 } else { | |
2052 /* | |
2053 * Move into or leave in the NULL namespace. | |
2054 */ | |
2055 elem->ns = NULL; | |
2056 } | |
2057 break; | |
2058 } | |
2059 alias = alias->next; | |
2060 } | |
2061 | |
2062 attr = attr->next; | |
2063 } | |
2064 } | |
2065 return(0); | |
2066 } | |
2067 | |
2068 /** | |
2069 * xsltLREBuildEffectiveNsNodes: | |
2070 * | |
2071 * Computes the effective namespaces nodes for a literal result | |
2072 * element. | |
2073 * @effectiveNs is the set of effective ns-nodes | |
2074 * on the literal result element, which will be added to the result | |
2075 * element if not already existing in the result tree. | |
2076 * This means that excluded namespaces (via exclude-result-prefixes, | |
2077 * extension-element-prefixes and the XSLT namespace) not added | |
2078 * to the set. | |
2079 * Namespace-aliasing was applied on the @effectiveNs. | |
2080 */ | |
2081 static int | |
2082 xsltLREBuildEffectiveNsNodes(xsltCompilerCtxtPtr cctxt, | |
2083 xsltStyleItemLRElementInfoPtr item, | |
2084 xmlNodePtr elem, | |
2085 int isLRE) | |
2086 { | |
2087 xmlNsPtr ns, tmpns; | |
2088 xsltEffectiveNsPtr effNs, lastEffNs = NULL; | |
2089 int i, j, holdByElem; | |
2090 xsltPointerListPtr extElemNs = cctxt->inode->extElemNs; | |
2091 xsltPointerListPtr exclResultNs = cctxt->inode->exclResultNs; | |
2092 | |
2093 if ((cctxt == NULL) || (cctxt->inode == NULL) || (elem == NULL) || | |
2094 (item == NULL) || (item->effectiveNs != NULL)) | |
2095 return(-1); | |
2096 | |
2097 if (item->inScopeNs == NULL) | |
2098 return(0); | |
2099 | |
2100 extElemNs = cctxt->inode->extElemNs; | |
2101 exclResultNs = cctxt->inode->exclResultNs; | |
2102 | |
2103 for (i = 0; i < item->inScopeNs->totalNumber; i++) { | |
2104 ns = item->inScopeNs->list[i]; | |
2105 /* | |
2106 * Skip namespaces designated as excluded namespaces | |
2107 * ------------------------------------------------- | |
2108 * | |
2109 * XSLT-20 TODO: In XSLT 2.0 we need to keep namespaces | |
2110 * which are target namespaces of namespace-aliases | |
2111 * regardless if designated as excluded. | |
2112 * | |
2113 * Exclude the XSLT namespace. | |
2114 */ | |
2115 if (xmlStrEqual(ns->href, XSLT_NAMESPACE)) | |
2116 goto skip_ns; | |
2117 | |
2118 /* | |
2119 * Apply namespace aliasing | |
2120 * ------------------------ | |
2121 * | |
2122 * SPEC XSLT 2.0 | |
2123 * "- A namespace node whose string value is a literal namespace | |
2124 * URI is not copied to the result tree. | |
2125 * - A namespace node whose string value is a target namespace URI | |
2126 * is copied to the result tree, whether or not the URI | |
2127 * identifies an excluded namespace." | |
2128 * | |
2129 * NOTE: The ns-aliasing machanism is non-cascading. | |
2130 * (checked with Saxon, Xalan and MSXML .NET). | |
2131 * URGENT TODO: is style->nsAliases the effective list of | |
2132 * ns-aliases, or do we need to lookup the whole | |
2133 * import-tree? | |
2134 * TODO: Get rid of import-tree lookup. | |
2135 */ | |
2136 if (cctxt->hasNsAliases) { | |
2137 xsltNsAliasPtr alias; | |
2138 /* | |
2139 * First check for being a target namespace. | |
2140 */ | |
2141 alias = cctxt->nsAliases; | |
2142 do { | |
2143 /* | |
2144 * TODO: Is xmlns="" handled already? | |
2145 */ | |
2146 if ((alias->targetNs != NULL) && | |
2147 (xmlStrEqual(alias->targetNs->href, ns->href))) | |
2148 { | |
2149 /* | |
2150 * Recognized as a target namespace; use it regardless | |
2151 * if excluded otherwise. | |
2152 */ | |
2153 goto add_effective_ns; | |
2154 } | |
2155 alias = alias->next; | |
2156 } while (alias != NULL); | |
2157 | |
2158 alias = cctxt->nsAliases; | |
2159 do { | |
2160 /* | |
2161 * TODO: Is xmlns="" handled already? | |
2162 */ | |
2163 if ((alias->literalNs != NULL) && | |
2164 (xmlStrEqual(alias->literalNs->href, ns->href))) | |
2165 { | |
2166 /* | |
2167 * Recognized as an namespace alias; do not use it. | |
2168 */ | |
2169 goto skip_ns; | |
2170 } | |
2171 alias = alias->next; | |
2172 } while (alias != NULL); | |
2173 } | |
2174 | |
2175 /* | |
2176 * Exclude excluded result namespaces. | |
2177 */ | |
2178 if (exclResultNs) { | |
2179 for (j = 0; j < exclResultNs->number; j++) | |
2180 if (xmlStrEqual(ns->href, BAD_CAST exclResultNs->items[j])) | |
2181 goto skip_ns; | |
2182 } | |
2183 /* | |
2184 * Exclude extension-element namespaces. | |
2185 */ | |
2186 if (extElemNs) { | |
2187 for (j = 0; j < extElemNs->number; j++) | |
2188 if (xmlStrEqual(ns->href, BAD_CAST extElemNs->items[j])) | |
2189 goto skip_ns; | |
2190 } | |
2191 | |
2192 add_effective_ns: | |
2193 /* | |
2194 * OPTIMIZE TODO: This information may not be needed. | |
2195 */ | |
2196 if (isLRE && (elem->nsDef != NULL)) { | |
2197 holdByElem = 0; | |
2198 tmpns = elem->nsDef; | |
2199 do { | |
2200 if (tmpns == ns) { | |
2201 holdByElem = 1; | |
2202 break; | |
2203 } | |
2204 tmpns = tmpns->next; | |
2205 } while (tmpns != NULL); | |
2206 } else | |
2207 holdByElem = 0; | |
2208 | |
2209 | |
2210 /* | |
2211 * Add the effective namespace declaration. | |
2212 */ | |
2213 effNs = (xsltEffectiveNsPtr) xmlMalloc(sizeof(xsltEffectiveNs)); | |
2214 if (effNs == NULL) { | |
2215 xsltTransformError(NULL, cctxt->style, elem, | |
2216 "Internal error in xsltLREBuildEffectiveNs(): " | |
2217 "failed to allocate memory.\n"); | |
2218 cctxt->style->errors++; | |
2219 return(-1); | |
2220 } | |
2221 if (cctxt->psData->effectiveNs == NULL) { | |
2222 cctxt->psData->effectiveNs = effNs; | |
2223 effNs->nextInStore = NULL; | |
2224 } else { | |
2225 effNs->nextInStore = cctxt->psData->effectiveNs; | |
2226 cctxt->psData->effectiveNs = effNs; | |
2227 } | |
2228 | |
2229 effNs->next = NULL; | |
2230 effNs->prefix = ns->prefix; | |
2231 effNs->nsName = ns->href; | |
2232 effNs->holdByElem = holdByElem; | |
2233 | |
2234 if (lastEffNs == NULL) | |
2235 item->effectiveNs = effNs; | |
2236 else | |
2237 lastEffNs->next = effNs; | |
2238 lastEffNs = effNs; | |
2239 | |
2240 skip_ns: | |
2241 {} | |
2242 } | |
2243 return(0); | |
2244 } | |
2245 | |
2246 | |
2247 /** | |
2248 * xsltLREInfoCreate: | |
2249 * | |
2250 * @isLRE: indicates if the given @elem is a literal result element | |
2251 * | |
2252 * Creates a new info for a literal result element. | |
2253 */ | |
2254 static int | |
2255 xsltLREInfoCreate(xsltCompilerCtxtPtr cctxt, | |
2256 xmlNodePtr elem, | |
2257 int isLRE) | |
2258 { | |
2259 xsltStyleItemLRElementInfoPtr item; | |
2260 | |
2261 if ((cctxt == NULL) || (cctxt->inode == NULL)) | |
2262 return(-1); | |
2263 | |
2264 item = (xsltStyleItemLRElementInfoPtr) | |
2265 xmlMalloc(sizeof(xsltStyleItemLRElementInfo)); | |
2266 if (item == NULL) { | |
2267 xsltTransformError(NULL, cctxt->style, NULL, | |
2268 "Internal error in xsltLREInfoCreate(): " | |
2269 "memory allocation failed.\n"); | |
2270 cctxt->style->errors++; | |
2271 return(-1); | |
2272 } | |
2273 memset(item, 0, sizeof(xsltStyleItemLRElementInfo)); | |
2274 item->type = XSLT_FUNC_LITERAL_RESULT_ELEMENT; | |
2275 /* | |
2276 * Store it in the stylesheet. | |
2277 */ | |
2278 item->next = cctxt->style->preComps; | |
2279 cctxt->style->preComps = (xsltElemPreCompPtr) item; | |
2280 /* | |
2281 * @inScopeNs are used for execution of XPath expressions | |
2282 * in AVTs. | |
2283 */ | |
2284 item->inScopeNs = cctxt->inode->inScopeNs; | |
2285 | |
2286 if (elem) | |
2287 xsltLREBuildEffectiveNsNodes(cctxt, item, elem, isLRE); | |
2288 | |
2289 cctxt->inode->litResElemInfo = item; | |
2290 cctxt->inode->nsChanged = 0; | |
2291 cctxt->maxLREs++; | |
2292 return(0); | |
2293 } | |
2294 | |
2295 /** | |
2296 * xsltCompilerVarInfoPush: | |
2297 * @cctxt: the compilation context | |
2298 * | |
2299 * Pushes a new var/param info onto the stack. | |
2300 * | |
2301 * Returns the acquired variable info. | |
2302 */ | |
2303 static xsltVarInfoPtr | |
2304 xsltCompilerVarInfoPush(xsltCompilerCtxtPtr cctxt, | |
2305 xmlNodePtr inst, | |
2306 const xmlChar *name, | |
2307 const xmlChar *nsName) | |
2308 { | |
2309 xsltVarInfoPtr ivar; | |
2310 | |
2311 if ((cctxt->ivar != NULL) && (cctxt->ivar->next != NULL)) { | |
2312 ivar = cctxt->ivar->next; | |
2313 } else if ((cctxt->ivar == NULL) && (cctxt->ivars != NULL)) { | |
2314 ivar = cctxt->ivars; | |
2315 } else { | |
2316 ivar = (xsltVarInfoPtr) xmlMalloc(sizeof(xsltVarInfo)); | |
2317 if (ivar == NULL) { | |
2318 xsltTransformError(NULL, cctxt->style, inst, | |
2319 "xsltParseInScopeVarPush: xmlMalloc() failed!\n"); | |
2320 cctxt->style->errors++; | |
2321 return(NULL); | |
2322 } | |
2323 /* memset(retVar, 0, sizeof(xsltInScopeVar)); */ | |
2324 if (cctxt->ivars == NULL) { | |
2325 cctxt->ivars = ivar; | |
2326 ivar->prev = NULL; | |
2327 } else { | |
2328 cctxt->ivar->next = ivar; | |
2329 ivar->prev = cctxt->ivar; | |
2330 } | |
2331 cctxt->ivar = ivar; | |
2332 ivar->next = NULL; | |
2333 } | |
2334 ivar->depth = cctxt->depth; | |
2335 ivar->name = name; | |
2336 ivar->nsName = nsName; | |
2337 return(ivar); | |
2338 } | |
2339 | |
2340 /** | |
2341 * xsltCompilerVarInfoPop: | |
2342 * @cctxt: the compilation context | |
2343 * | |
2344 * Pops all var/param infos from the stack, which | |
2345 * have the current depth. | |
2346 */ | |
2347 static void | |
2348 xsltCompilerVarInfoPop(xsltCompilerCtxtPtr cctxt) | |
2349 { | |
2350 | |
2351 while ((cctxt->ivar != NULL) && | |
2352 (cctxt->ivar->depth > cctxt->depth)) | |
2353 { | |
2354 cctxt->ivar = cctxt->ivar->prev; | |
2355 } | |
2356 } | |
2357 | |
2358 /* | |
2359 * xsltCompilerNodePush: | |
2360 * | |
2361 * @cctxt: the compilation context | |
2362 * @node: the node to be pushed (this can also be the doc-node) | |
2363 * | |
2364 * | |
2365 * | |
2366 * Returns the current node info structure or | |
2367 * NULL in case of an internal error. | |
2368 */ | |
2369 static xsltCompilerNodeInfoPtr | |
2370 xsltCompilerNodePush(xsltCompilerCtxtPtr cctxt, xmlNodePtr node) | |
2371 { | |
2372 xsltCompilerNodeInfoPtr inode, iprev; | |
2373 | |
2374 if ((cctxt->inode != NULL) && (cctxt->inode->next != NULL)) { | |
2375 inode = cctxt->inode->next; | |
2376 } else if ((cctxt->inode == NULL) && (cctxt->inodeList != NULL)) { | |
2377 inode = cctxt->inodeList; | |
2378 } else { | |
2379 /* | |
2380 * Create a new node-info. | |
2381 */ | |
2382 inode = (xsltCompilerNodeInfoPtr) | |
2383 xmlMalloc(sizeof(xsltCompilerNodeInfo)); | |
2384 if (inode == NULL) { | |
2385 xsltTransformError(NULL, cctxt->style, NULL, | |
2386 "xsltCompilerNodePush: malloc failed.\n"); | |
2387 return(NULL); | |
2388 } | |
2389 memset(inode, 0, sizeof(xsltCompilerNodeInfo)); | |
2390 if (cctxt->inodeList == NULL) | |
2391 cctxt->inodeList = inode; | |
2392 else { | |
2393 cctxt->inodeLast->next = inode; | |
2394 inode->prev = cctxt->inodeLast; | |
2395 } | |
2396 cctxt->inodeLast = inode; | |
2397 cctxt->maxNodeInfos++; | |
2398 if (cctxt->inode == NULL) { | |
2399 cctxt->inode = inode; | |
2400 /* | |
2401 * Create an initial literal result element info for | |
2402 * the root of the stylesheet. | |
2403 */ | |
2404 xsltLREInfoCreate(cctxt, NULL, 0); | |
2405 } | |
2406 } | |
2407 cctxt->depth++; | |
2408 cctxt->inode = inode; | |
2409 /* | |
2410 * REVISIT TODO: Keep the reset always complete. | |
2411 * NOTE: Be carefull with the @node, since it might be | |
2412 * a doc-node. | |
2413 */ | |
2414 inode->node = node; | |
2415 inode->depth = cctxt->depth; | |
2416 inode->templ = NULL; | |
2417 inode->category = XSLT_ELEMENT_CATEGORY_XSLT; | |
2418 inode->type = 0; | |
2419 inode->item = NULL; | |
2420 inode->curChildType = 0; | |
2421 inode->extContentHandled = 0; | |
2422 inode->isRoot = 0; | |
2423 | |
2424 if (inode->prev != NULL) { | |
2425 iprev = inode->prev; | |
2426 /* | |
2427 * Inherit the following information: | |
2428 * --------------------------------- | |
2429 * | |
2430 * In-scope namespaces | |
2431 */ | |
2432 inode->inScopeNs = iprev->inScopeNs; | |
2433 /* | |
2434 * Info for literal result elements | |
2435 */ | |
2436 inode->litResElemInfo = iprev->litResElemInfo; | |
2437 inode->nsChanged = iprev->nsChanged; | |
2438 /* | |
2439 * Excluded result namespaces | |
2440 */ | |
2441 inode->exclResultNs = iprev->exclResultNs; | |
2442 /* | |
2443 * Extension instruction namespaces | |
2444 */ | |
2445 inode->extElemNs = iprev->extElemNs; | |
2446 /* | |
2447 * Whitespace preservation | |
2448 */ | |
2449 inode->preserveWhitespace = iprev->preserveWhitespace; | |
2450 /* | |
2451 * Forwards-compatible mode | |
2452 */ | |
2453 inode->forwardsCompat = iprev->forwardsCompat; | |
2454 } else { | |
2455 inode->inScopeNs = NULL; | |
2456 inode->exclResultNs = NULL; | |
2457 inode->extElemNs = NULL; | |
2458 inode->preserveWhitespace = 0; | |
2459 inode->forwardsCompat = 0; | |
2460 } | |
2461 | |
2462 return(inode); | |
2463 } | |
2464 | |
2465 /* | |
2466 * xsltCompilerNodePop: | |
2467 * | |
2468 * @cctxt: the compilation context | |
2469 * @node: the node to be pushed (this can also be the doc-node) | |
2470 * | |
2471 * Pops the current node info. | |
2472 */ | |
2473 static void | |
2474 xsltCompilerNodePop(xsltCompilerCtxtPtr cctxt, xmlNodePtr node) | |
2475 { | |
2476 if (cctxt->inode == NULL) { | |
2477 xmlGenericError(xmlGenericErrorContext, | |
2478 "xsltCompilerNodePop: Top-node mismatch.\n"); | |
2479 return; | |
2480 } | |
2481 /* | |
2482 * NOTE: Be carefull with the @node, since it might be | |
2483 * a doc-node. | |
2484 */ | |
2485 if (cctxt->inode->node != node) { | |
2486 xmlGenericError(xmlGenericErrorContext, | |
2487 "xsltCompilerNodePop: Node mismatch.\n"); | |
2488 goto mismatch; | |
2489 } | |
2490 if (cctxt->inode->depth != cctxt->depth) { | |
2491 xmlGenericError(xmlGenericErrorContext, | |
2492 "xsltCompilerNodePop: Depth mismatch.\n"); | |
2493 goto mismatch; | |
2494 } | |
2495 cctxt->depth--; | |
2496 /* | |
2497 * Pop information of variables. | |
2498 */ | |
2499 if ((cctxt->ivar) && (cctxt->ivar->depth > cctxt->depth)) | |
2500 xsltCompilerVarInfoPop(cctxt); | |
2501 | |
2502 cctxt->inode = cctxt->inode->prev; | |
2503 if (cctxt->inode != NULL) | |
2504 cctxt->inode->curChildType = 0; | |
2505 return; | |
2506 | |
2507 mismatch: | |
2508 { | |
2509 const xmlChar *nsName = NULL, *name = NULL; | |
2510 const xmlChar *infnsName = NULL, *infname = NULL; | |
2511 | |
2512 if (node) { | |
2513 if (node->type == XML_ELEMENT_NODE) { | |
2514 name = node->name; | |
2515 if (node->ns != NULL) | |
2516 nsName = node->ns->href; | |
2517 else | |
2518 nsName = BAD_CAST ""; | |
2519 } else { | |
2520 name = BAD_CAST "#document"; | |
2521 nsName = BAD_CAST ""; | |
2522 } | |
2523 } else | |
2524 name = BAD_CAST "Not given"; | |
2525 | |
2526 if (cctxt->inode->node) { | |
2527 if (node->type == XML_ELEMENT_NODE) { | |
2528 infname = cctxt->inode->node->name; | |
2529 if (cctxt->inode->node->ns != NULL) | |
2530 infnsName = cctxt->inode->node->ns->href; | |
2531 else | |
2532 infnsName = BAD_CAST ""; | |
2533 } else { | |
2534 infname = BAD_CAST "#document"; | |
2535 infnsName = BAD_CAST ""; | |
2536 } | |
2537 } else | |
2538 infname = BAD_CAST "Not given"; | |
2539 | |
2540 | |
2541 xmlGenericError(xmlGenericErrorContext, | |
2542 "xsltCompilerNodePop: Given : '%s' URI '%s'\n", | |
2543 name, nsName); | |
2544 xmlGenericError(xmlGenericErrorContext, | |
2545 "xsltCompilerNodePop: Expected: '%s' URI '%s'\n", | |
2546 infname, infnsName); | |
2547 } | |
2548 } | |
2549 | |
2550 /* | |
2551 * xsltCompilerBuildInScopeNsList: | |
2552 * | |
2553 * Create and store the list of in-scope namespaces for the given | |
2554 * node in the stylesheet. If there are no changes in the in-scope | |
2555 * namespaces then the last ns-info of the ancestor axis will be returned. | |
2556 * Compilation-time only. | |
2557 * | |
2558 * Returns the ns-info or NULL if there are no namespaces in scope. | |
2559 */ | |
2560 static xsltNsListContainerPtr | |
2561 xsltCompilerBuildInScopeNsList(xsltCompilerCtxtPtr cctxt, xmlNodePtr node) | |
2562 { | |
2563 xsltNsListContainerPtr nsi = NULL; | |
2564 xmlNsPtr *list = NULL, ns; | |
2565 int i, maxns = 5; | |
2566 /* | |
2567 * Create a new ns-list for this position in the node-tree. | |
2568 * xmlGetNsList() will return NULL, if there are no ns-decls in the | |
2569 * tree. Note that the ns-decl for the XML namespace is not added | |
2570 * to the resulting list; the XPath module handles the XML namespace | |
2571 * internally. | |
2572 */ | |
2573 while (node != NULL) { | |
2574 if (node->type == XML_ELEMENT_NODE) { | |
2575 ns = node->nsDef; | |
2576 while (ns != NULL) { | |
2577 if (nsi == NULL) { | |
2578 nsi = (xsltNsListContainerPtr) | |
2579 xmlMalloc(sizeof(xsltNsListContainer)); | |
2580 if (nsi == NULL) { | |
2581 xsltTransformError(NULL, cctxt->style, NULL, | |
2582 "xsltCompilerBuildInScopeNsList: " | |
2583 "malloc failed!\n"); | |
2584 goto internal_err; | |
2585 } | |
2586 memset(nsi, 0, sizeof(xsltNsListContainer)); | |
2587 nsi->list = | |
2588 (xmlNsPtr *) xmlMalloc(maxns * sizeof(xmlNsPtr)); | |
2589 if (nsi->list == NULL) { | |
2590 xsltTransformError(NULL, cctxt->style, NULL, | |
2591 "xsltCompilerBuildInScopeNsList: " | |
2592 "malloc failed!\n"); | |
2593 goto internal_err; | |
2594 } | |
2595 nsi->list[0] = NULL; | |
2596 } | |
2597 /* | |
2598 * Skip shadowed namespace bindings. | |
2599 */ | |
2600 for (i = 0; i < nsi->totalNumber; i++) { | |
2601 if ((ns->prefix == nsi->list[i]->prefix) || | |
2602 (xmlStrEqual(ns->prefix, nsi->list[i]->prefix))) | |
2603 break; | |
2604 } | |
2605 if (i >= nsi->totalNumber) { | |
2606 if (nsi->totalNumber +1 >= maxns) { | |
2607 maxns *= 2; | |
2608 nsi->list = | |
2609 (xmlNsPtr *) xmlRealloc(nsi->list, | |
2610 maxns * sizeof(xmlNsPtr)); | |
2611 if (nsi->list == NULL) { | |
2612 xsltTransformError(NULL, cctxt->style, NULL, | |
2613 "xsltCompilerBuildInScopeNsList: " | |
2614 "realloc failed!\n"); | |
2615 goto internal_err; | |
2616 } | |
2617 } | |
2618 nsi->list[nsi->totalNumber++] = ns; | |
2619 nsi->list[nsi->totalNumber] = NULL; | |
2620 } | |
2621 | |
2622 ns = ns->next; | |
2623 } | |
2624 } | |
2625 node = node->parent; | |
2626 } | |
2627 if (nsi == NULL) | |
2628 return(NULL); | |
2629 /* | |
2630 * Move the default namespace to last position. | |
2631 */ | |
2632 nsi->xpathNumber = nsi->totalNumber; | |
2633 for (i = 0; i < nsi->totalNumber; i++) { | |
2634 if (nsi->list[i]->prefix == NULL) { | |
2635 ns = nsi->list[i]; | |
2636 nsi->list[i] = nsi->list[nsi->totalNumber-1]; | |
2637 nsi->list[nsi->totalNumber-1] = ns; | |
2638 nsi->xpathNumber--; | |
2639 break; | |
2640 } | |
2641 } | |
2642 /* | |
2643 * Store the ns-list in the stylesheet. | |
2644 */ | |
2645 if (xsltPointerListAddSize( | |
2646 (xsltPointerListPtr)cctxt->psData->inScopeNamespaces, | |
2647 (void *) nsi, 5) == -1) | |
2648 { | |
2649 xmlFree(nsi); | |
2650 nsi = NULL; | |
2651 xsltTransformError(NULL, cctxt->style, NULL, | |
2652 "xsltCompilerBuildInScopeNsList: failed to add ns-info.\n"); | |
2653 goto internal_err; | |
2654 } | |
2655 /* | |
2656 * Notify of change in status wrt namespaces. | |
2657 */ | |
2658 if (cctxt->inode != NULL) | |
2659 cctxt->inode->nsChanged = 1; | |
2660 | |
2661 return(nsi); | |
2662 | |
2663 internal_err: | |
2664 if (list != NULL) | |
2665 xmlFree(list); | |
2666 cctxt->style->errors++; | |
2667 return(NULL); | |
2668 } | |
2669 | |
2670 static int | |
2671 xsltParseNsPrefixList(xsltCompilerCtxtPtr cctxt, | |
2672 xsltPointerListPtr list, | |
2673 xmlNodePtr node, | |
2674 const xmlChar *value) | |
2675 { | |
2676 xmlChar *cur, *end; | |
2677 xmlNsPtr ns; | |
2678 | |
2679 if ((cctxt == NULL) || (value == NULL) || (list == NULL)) | |
2680 return(-1); | |
2681 | |
2682 list->number = 0; | |
2683 | |
2684 cur = (xmlChar *) value; | |
2685 while (*cur != 0) { | |
2686 while (IS_BLANK(*cur)) cur++; | |
2687 if (*cur == 0) | |
2688 break; | |
2689 end = cur; | |
2690 while ((*end != 0) && (!IS_BLANK(*end))) end++; | |
2691 cur = xmlStrndup(cur, end - cur); | |
2692 if (cur == NULL) { | |
2693 cur = end; | |
2694 continue; | |
2695 } | |
2696 /* | |
2697 * TODO: Export and use xmlSearchNsByPrefixStrict() | |
2698 * in Libxml2, tree.c, since xmlSearchNs() is in most | |
2699 * cases not efficient and in some cases not correct. | |
2700 * | |
2701 * XSLT-2 TODO: XSLT 2.0 allows an additional "#all" value. | |
2702 */ | |
2703 if ((cur[0] == '#') && | |
2704 xmlStrEqual(cur, (const xmlChar *)"#default")) | |
2705 ns = xmlSearchNs(cctxt->style->doc, node, NULL); | |
2706 else | |
2707 ns = xmlSearchNs(cctxt->style->doc, node, cur); | |
2708 | |
2709 if (ns == NULL) { | |
2710 /* | |
2711 * TODO: Better to report the attr-node, otherwise | |
2712 * the user won't know which attribute was invalid. | |
2713 */ | |
2714 xsltTransformError(NULL, cctxt->style, node, | |
2715 "No namespace binding in scope for prefix '%s'.\n", cur); | |
2716 /* | |
2717 * XSLT-1.0: "It is an error if there is no namespace | |
2718 * bound to the prefix on the element bearing the | |
2719 * exclude-result-prefixes or xsl:exclude-result-prefixes | |
2720 * attribute." | |
2721 */ | |
2722 cctxt->style->errors++; | |
2723 } else { | |
2724 #ifdef WITH_XSLT_DEBUG_PARSING | |
2725 xsltGenericDebug(xsltGenericDebugContext, | |
2726 "resolved prefix '%s'\n", cur); | |
2727 #endif | |
2728 /* | |
2729 * Note that we put the namespace name into the dict. | |
2730 */ | |
2731 if (xsltPointerListAddSize(list, | |
2732 (void *) xmlDictLookup(cctxt->style->dict, | |
2733 ns->href, -1), 5) == -1) | |
2734 { | |
2735 xmlFree(cur); | |
2736 goto internal_err; | |
2737 } | |
2738 } | |
2739 xmlFree(cur); | |
2740 | |
2741 cur = end; | |
2742 } | |
2743 return(0); | |
2744 | |
2745 internal_err: | |
2746 cctxt->style->errors++; | |
2747 return(-1); | |
2748 } | |
2749 | |
2750 /** | |
2751 * xsltCompilerUtilsCreateMergedList: | |
2752 * @dest: the destination list (optional) | |
2753 * @first: the first list | |
2754 * @second: the second list (optional) | |
2755 * | |
2756 * Appends the content of @second to @first into @destination. | |
2757 * If @destination is NULL a new list will be created. | |
2758 * | |
2759 * Returns the merged list of items or NULL if there's nothing to merge. | |
2760 */ | |
2761 static xsltPointerListPtr | |
2762 xsltCompilerUtilsCreateMergedList(xsltPointerListPtr first, | |
2763 xsltPointerListPtr second) | |
2764 { | |
2765 xsltPointerListPtr ret; | |
2766 size_t num; | |
2767 | |
2768 if (first) | |
2769 num = first->number; | |
2770 else | |
2771 num = 0; | |
2772 if (second) | |
2773 num += second->number; | |
2774 if (num == 0) | |
2775 return(NULL); | |
2776 ret = xsltPointerListCreate(num); | |
2777 if (ret == NULL) | |
2778 return(NULL); | |
2779 /* | |
2780 * Copy contents. | |
2781 */ | |
2782 if ((first != NULL) && (first->number != 0)) { | |
2783 memcpy(ret->items, first->items, | |
2784 first->number * sizeof(void *)); | |
2785 if ((second != NULL) && (second->number != 0)) | |
2786 memcpy(ret->items + first->number, second->items, | |
2787 second->number * sizeof(void *)); | |
2788 } else if ((second != NULL) && (second->number != 0)) | |
2789 memcpy(ret->items, (void *) second->items, | |
2790 second->number * sizeof(void *)); | |
2791 ret->number = num; | |
2792 return(ret); | |
2793 } | |
2794 | |
2795 /* | |
2796 * xsltParseExclResultPrefixes: | |
2797 * | |
2798 * Create and store the list of in-scope namespaces for the given | |
2799 * node in the stylesheet. If there are no changes in the in-scope | |
2800 * namespaces then the last ns-info of the ancestor axis will be returned. | |
2801 * Compilation-time only. | |
2802 * | |
2803 * Returns the ns-info or NULL if there are no namespaces in scope. | |
2804 */ | |
2805 static xsltPointerListPtr | |
2806 xsltParseExclResultPrefixes(xsltCompilerCtxtPtr cctxt, xmlNodePtr node, | |
2807 xsltPointerListPtr def, | |
2808 int instrCategory) | |
2809 { | |
2810 xsltPointerListPtr list = NULL; | |
2811 xmlChar *value; | |
2812 xmlAttrPtr attr; | |
2813 | |
2814 if ((cctxt == NULL) || (node == NULL)) | |
2815 return(NULL); | |
2816 | |
2817 if (instrCategory == XSLT_ELEMENT_CATEGORY_XSLT) | |
2818 attr = xmlHasNsProp(node, BAD_CAST "exclude-result-prefixes", NULL); | |
2819 else | |
2820 attr = xmlHasNsProp(node, BAD_CAST "exclude-result-prefixes", | |
2821 XSLT_NAMESPACE); | |
2822 if (attr == NULL) | |
2823 return(def); | |
2824 | |
2825 if (attr && (instrCategory == XSLT_ELEMENT_CATEGORY_LRE)) { | |
2826 /* | |
2827 * Mark the XSLT attr. | |
2828 */ | |
2829 attr->psvi = (void *) xsltXSLTAttrMarker; | |
2830 } | |
2831 | |
2832 if ((attr->children != NULL) && | |
2833 (attr->children->content != NULL)) | |
2834 value = attr->children->content; | |
2835 else { | |
2836 xsltTransformError(NULL, cctxt->style, node, | |
2837 "Attribute 'exclude-result-prefixes': Invalid value.\n"); | |
2838 cctxt->style->errors++; | |
2839 return(def); | |
2840 } | |
2841 | |
2842 if (xsltParseNsPrefixList(cctxt, cctxt->tmpList, node, | |
2843 BAD_CAST value) != 0) | |
2844 goto exit; | |
2845 if (cctxt->tmpList->number == 0) | |
2846 goto exit; | |
2847 /* | |
2848 * Merge the list with the inherited list. | |
2849 */ | |
2850 list = xsltCompilerUtilsCreateMergedList(def, cctxt->tmpList); | |
2851 if (list == NULL) | |
2852 goto exit; | |
2853 /* | |
2854 * Store the list in the stylesheet/compiler context. | |
2855 */ | |
2856 if (xsltPointerListAddSize( | |
2857 cctxt->psData->exclResultNamespaces, list, 5) == -1) | |
2858 { | |
2859 xsltPointerListFree(list); | |
2860 list = NULL; | |
2861 goto exit; | |
2862 } | |
2863 /* | |
2864 * Notify of change in status wrt namespaces. | |
2865 */ | |
2866 if (cctxt->inode != NULL) | |
2867 cctxt->inode->nsChanged = 1; | |
2868 | |
2869 exit: | |
2870 if (list != NULL) | |
2871 return(list); | |
2872 else | |
2873 return(def); | |
2874 } | |
2875 | |
2876 /* | |
2877 * xsltParseExtElemPrefixes: | |
2878 * | |
2879 * Create and store the list of in-scope namespaces for the given | |
2880 * node in the stylesheet. If there are no changes in the in-scope | |
2881 * namespaces then the last ns-info of the ancestor axis will be returned. | |
2882 * Compilation-time only. | |
2883 * | |
2884 * Returns the ns-info or NULL if there are no namespaces in scope. | |
2885 */ | |
2886 static xsltPointerListPtr | |
2887 xsltParseExtElemPrefixes(xsltCompilerCtxtPtr cctxt, xmlNodePtr node, | |
2888 xsltPointerListPtr def, | |
2889 int instrCategory) | |
2890 { | |
2891 xsltPointerListPtr list = NULL; | |
2892 xmlAttrPtr attr; | |
2893 xmlChar *value; | |
2894 int i; | |
2895 | |
2896 if ((cctxt == NULL) || (node == NULL)) | |
2897 return(NULL); | |
2898 | |
2899 if (instrCategory == XSLT_ELEMENT_CATEGORY_XSLT) | |
2900 attr = xmlHasNsProp(node, BAD_CAST "extension-element-prefixes", NULL); | |
2901 else | |
2902 attr = xmlHasNsProp(node, BAD_CAST "extension-element-prefixes", | |
2903 XSLT_NAMESPACE); | |
2904 if (attr == NULL) | |
2905 return(def); | |
2906 | |
2907 if (attr && (instrCategory == XSLT_ELEMENT_CATEGORY_LRE)) { | |
2908 /* | |
2909 * Mark the XSLT attr. | |
2910 */ | |
2911 attr->psvi = (void *) xsltXSLTAttrMarker; | |
2912 } | |
2913 | |
2914 if ((attr->children != NULL) && | |
2915 (attr->children->content != NULL)) | |
2916 value = attr->children->content; | |
2917 else { | |
2918 xsltTransformError(NULL, cctxt->style, node, | |
2919 "Attribute 'extension-element-prefixes': Invalid value.\n"); | |
2920 cctxt->style->errors++; | |
2921 return(def); | |
2922 } | |
2923 | |
2924 | |
2925 if (xsltParseNsPrefixList(cctxt, cctxt->tmpList, node, | |
2926 BAD_CAST value) != 0) | |
2927 goto exit; | |
2928 | |
2929 if (cctxt->tmpList->number == 0) | |
2930 goto exit; | |
2931 /* | |
2932 * REVISIT: Register the extension namespaces. | |
2933 */ | |
2934 for (i = 0; i < cctxt->tmpList->number; i++) | |
2935 xsltRegisterExtPrefix(cctxt->style, NULL, | |
2936 BAD_CAST cctxt->tmpList->items[i]); | |
2937 /* | |
2938 * Merge the list with the inherited list. | |
2939 */ | |
2940 list = xsltCompilerUtilsCreateMergedList(def, cctxt->tmpList); | |
2941 if (list == NULL) | |
2942 goto exit; | |
2943 /* | |
2944 * Store the list in the stylesheet. | |
2945 */ | |
2946 if (xsltPointerListAddSize( | |
2947 cctxt->psData->extElemNamespaces, list, 5) == -1) | |
2948 { | |
2949 xsltPointerListFree(list); | |
2950 list = NULL; | |
2951 goto exit; | |
2952 } | |
2953 /* | |
2954 * Notify of change in status wrt namespaces. | |
2955 */ | |
2956 if (cctxt->inode != NULL) | |
2957 cctxt->inode->nsChanged = 1; | |
2958 | |
2959 exit: | |
2960 if (list != NULL) | |
2961 return(list); | |
2962 else | |
2963 return(def); | |
2964 } | |
2965 | |
2966 /* | |
2967 * xsltParseAttrXSLTVersion: | |
2968 * | |
2969 * @cctxt: the compilation context | |
2970 * @node: the element-node | |
2971 * @isXsltElem: whether this is an XSLT element | |
2972 * | |
2973 * Parses the attribute xsl:version. | |
2974 * | |
2975 * Returns 1 if there was such an attribute, 0 if not and | |
2976 * -1 if an internal or API error occured. | |
2977 */ | |
2978 static int | |
2979 xsltParseAttrXSLTVersion(xsltCompilerCtxtPtr cctxt, xmlNodePtr node, | |
2980 int instrCategory) | |
2981 { | |
2982 xmlChar *value; | |
2983 xmlAttrPtr attr; | |
2984 | |
2985 if ((cctxt == NULL) || (node == NULL)) | |
2986 return(-1); | |
2987 | |
2988 if (instrCategory == XSLT_ELEMENT_CATEGORY_XSLT) | |
2989 attr = xmlHasNsProp(node, BAD_CAST "version", NULL); | |
2990 else | |
2991 attr = xmlHasNsProp(node, BAD_CAST "version", XSLT_NAMESPACE); | |
2992 | |
2993 if (attr == NULL) | |
2994 return(0); | |
2995 | |
2996 attr->psvi = (void *) xsltXSLTAttrMarker; | |
2997 | |
2998 if ((attr->children != NULL) && | |
2999 (attr->children->content != NULL)) | |
3000 value = attr->children->content; | |
3001 else { | |
3002 xsltTransformError(NULL, cctxt->style, node, | |
3003 "Attribute 'version': Invalid value.\n"); | |
3004 cctxt->style->errors++; | |
3005 return(1); | |
3006 } | |
3007 | |
3008 if (! xmlStrEqual(value, (const xmlChar *)"1.0")) { | |
3009 cctxt->inode->forwardsCompat = 1; | |
3010 /* | |
3011 * TODO: To what extent do we support the | |
3012 * forwards-compatible mode? | |
3013 */ | |
3014 /* | |
3015 * Report this only once per compilation episode. | |
3016 */ | |
3017 if (! cctxt->hasForwardsCompat) { | |
3018 cctxt->hasForwardsCompat = 1; | |
3019 cctxt->errSeverity = XSLT_ERROR_SEVERITY_WARNING; | |
3020 xsltTransformError(NULL, cctxt->style, node, | |
3021 "Warning: the attribute xsl:version specifies a value " | |
3022 "different from '1.0'. Switching to forwards-compatible " | |
3023 "mode. Only features of XSLT 1.0 are supported by this " | |
3024 "processor.\n"); | |
3025 cctxt->style->warnings++; | |
3026 cctxt->errSeverity = XSLT_ERROR_SEVERITY_ERROR; | |
3027 } | |
3028 } else { | |
3029 cctxt->inode->forwardsCompat = 0; | |
3030 } | |
3031 | |
3032 if (attr && (instrCategory == XSLT_ELEMENT_CATEGORY_LRE)) { | |
3033 /* | |
3034 * Set a marker on XSLT attributes. | |
3035 */ | |
3036 attr->psvi = (void *) xsltXSLTAttrMarker; | |
3037 } | |
3038 return(1); | |
3039 } | |
3040 | |
3041 static int | |
3042 xsltParsePreprocessStylesheetTree(xsltCompilerCtxtPtr cctxt, xmlNodePtr node) | |
3043 { | |
3044 xmlNodePtr deleteNode, cur, txt, textNode = NULL; | |
3045 xmlDocPtr doc; | |
3046 xsltStylesheetPtr style; | |
3047 int internalize = 0, findSpaceAttr; | |
3048 int xsltStylesheetElemDepth; | |
3049 xmlAttrPtr attr; | |
3050 xmlChar *value; | |
3051 const xmlChar *name, *nsNameXSLT = NULL; | |
3052 int strictWhitespace, inXSLText = 0; | |
3053 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
3054 xsltNsMapPtr nsMapItem; | |
3055 #endif | |
3056 | |
3057 if ((cctxt == NULL) || (cctxt->style == NULL) || | |
3058 (node == NULL) || (node->type != XML_ELEMENT_NODE)) | |
3059 return(-1); | |
3060 | |
3061 doc = node->doc; | |
3062 if (doc == NULL) | |
3063 goto internal_err; | |
3064 | |
3065 style = cctxt->style; | |
3066 if ((style->dict != NULL) && (doc->dict == style->dict)) | |
3067 internalize = 1; | |
3068 else | |
3069 style->internalized = 0; | |
3070 | |
3071 /* | |
3072 * Init value of xml:space. Since this might be an embedded | |
3073 * stylesheet, this is needed to be performed on the element | |
3074 * where the stylesheet is rooted at, taking xml:space of | |
3075 * ancestors into account. | |
3076 */ | |
3077 if (! cctxt->simplified) | |
3078 xsltStylesheetElemDepth = cctxt->depth +1; | |
3079 else | |
3080 xsltStylesheetElemDepth = 0; | |
3081 | |
3082 if (xmlNodeGetSpacePreserve(node) != 1) | |
3083 cctxt->inode->preserveWhitespace = 0; | |
3084 else | |
3085 cctxt->inode->preserveWhitespace = 1; | |
3086 | |
3087 /* | |
3088 * Eval if we should keep the old incorrect behaviour. | |
3089 */ | |
3090 strictWhitespace = (cctxt->strict != 0) ? 1 : 0; | |
3091 | |
3092 nsNameXSLT = xsltConstNamespaceNameXSLT; | |
3093 | |
3094 deleteNode = NULL; | |
3095 cur = node; | |
3096 while (cur != NULL) { | |
3097 if (deleteNode != NULL) { | |
3098 | |
3099 #ifdef WITH_XSLT_DEBUG_BLANKS | |
3100 xsltGenericDebug(xsltGenericDebugContext, | |
3101 "xsltParsePreprocessStylesheetTree: removing node\n"); | |
3102 #endif | |
3103 xmlUnlinkNode(deleteNode); | |
3104 xmlFreeNode(deleteNode); | |
3105 deleteNode = NULL; | |
3106 } | |
3107 if (cur->type == XML_ELEMENT_NODE) { | |
3108 | |
3109 /* | |
3110 * Clear the PSVI field. | |
3111 */ | |
3112 cur->psvi = NULL; | |
3113 | |
3114 xsltCompilerNodePush(cctxt, cur); | |
3115 | |
3116 inXSLText = 0; | |
3117 textNode = NULL; | |
3118 findSpaceAttr = 1; | |
3119 cctxt->inode->stripWhitespace = 0; | |
3120 /* | |
3121 * TODO: I'd love to use a string pointer comparison here :-/ | |
3122 */ | |
3123 if (IS_XSLT_ELEM(cur)) { | |
3124 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
3125 if (cur->ns->href != nsNameXSLT) { | |
3126 nsMapItem = xsltNewNamespaceMapItem(cctxt, | |
3127 doc, cur->ns, cur); | |
3128 if (nsMapItem == NULL) | |
3129 goto internal_err; | |
3130 cur->ns->href = nsNameXSLT; | |
3131 } | |
3132 #endif | |
3133 | |
3134 if (cur->name == NULL) | |
3135 goto process_attributes; | |
3136 /* | |
3137 * Mark the XSLT element for later recognition. | |
3138 * TODO: Using the marker is still too dangerous, since if | |
3139 * the parsing mechanism leaves out an XSLT element, then | |
3140 * this might hit the transformation-mechanism, which | |
3141 * will break if it doesn't expect such a marker. | |
3142 */ | |
3143 /* cur->psvi = (void *) xsltXSLTElemMarker; */ | |
3144 | |
3145 /* | |
3146 * XSLT 2.0: "Any whitespace text node whose parent is | |
3147 * one of the following elements is removed from the " | |
3148 * tree, regardless of any xml:space attributes:..." | |
3149 * xsl:apply-imports, | |
3150 * xsl:apply-templates, | |
3151 * xsl:attribute-set, | |
3152 * xsl:call-template, | |
3153 * xsl:choose, | |
3154 * xsl:stylesheet, xsl:transform. | |
3155 * XSLT 2.0: xsl:analyze-string, | |
3156 * xsl:character-map, | |
3157 * xsl:next-match | |
3158 * | |
3159 * TODO: I'd love to use a string pointer comparison here :-/ | |
3160 */ | |
3161 name = cur->name; | |
3162 switch (*name) { | |
3163 case 't': | |
3164 if ((name[0] == 't') && (name[1] == 'e') && | |
3165 (name[2] == 'x') && (name[3] == 't') && | |
3166 (name[4] == 0)) | |
3167 { | |
3168 /* | |
3169 * Process the xsl:text element. | |
3170 * ---------------------------- | |
3171 * Mark it for later recognition. | |
3172 */ | |
3173 cur->psvi = (void *) xsltXSLTTextMarker; | |
3174 /* | |
3175 * For stylesheets, the set of | |
3176 * whitespace-preserving element names | |
3177 * consists of just xsl:text. | |
3178 */ | |
3179 findSpaceAttr = 0; | |
3180 cctxt->inode->preserveWhitespace = 1; | |
3181 inXSLText = 1; | |
3182 } | |
3183 break; | |
3184 case 'c': | |
3185 if (xmlStrEqual(name, BAD_CAST "choose") || | |
3186 xmlStrEqual(name, BAD_CAST "call-template")) | |
3187 cctxt->inode->stripWhitespace = 1; | |
3188 break; | |
3189 case 'a': | |
3190 if (xmlStrEqual(name, BAD_CAST "apply-templates") || | |
3191 xmlStrEqual(name, BAD_CAST "apply-imports") || | |
3192 xmlStrEqual(name, BAD_CAST "attribute-set")) | |
3193 | |
3194 cctxt->inode->stripWhitespace = 1; | |
3195 break; | |
3196 default: | |
3197 if (xsltStylesheetElemDepth == cctxt->depth) { | |
3198 /* | |
3199 * This is a xsl:stylesheet/xsl:transform. | |
3200 */ | |
3201 cctxt->inode->stripWhitespace = 1; | |
3202 break; | |
3203 } | |
3204 | |
3205 if ((cur->prev != NULL) && | |
3206 (cur->prev->type == XML_TEXT_NODE)) | |
3207 { | |
3208 /* | |
3209 * XSLT 2.0 : "Any whitespace text node whose | |
3210 * following-sibling node is an xsl:param or | |
3211 * xsl:sort element is removed from the tree, | |
3212 * regardless of any xml:space attributes." | |
3213 */ | |
3214 if (((*name == 'p') || (*name == 's')) && | |
3215 (xmlStrEqual(name, BAD_CAST "param") || | |
3216 xmlStrEqual(name, BAD_CAST "sort"))) | |
3217 { | |
3218 do { | |
3219 if (IS_BLANK_NODE(cur->prev)) { | |
3220 txt = cur->prev; | |
3221 xmlUnlinkNode(txt); | |
3222 xmlFreeNode(txt); | |
3223 } else { | |
3224 /* | |
3225 * This will result in a content | |
3226 * error, when hitting the parsing | |
3227 * functions. | |
3228 */ | |
3229 break; | |
3230 } | |
3231 } while (cur->prev); | |
3232 } | |
3233 } | |
3234 break; | |
3235 } | |
3236 } | |
3237 | |
3238 process_attributes: | |
3239 /* | |
3240 * Process attributes. | |
3241 * ------------------ | |
3242 */ | |
3243 if (cur->properties != NULL) { | |
3244 if (cur->children == NULL) | |
3245 findSpaceAttr = 0; | |
3246 attr = cur->properties; | |
3247 do { | |
3248 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
3249 if ((attr->ns) && (attr->ns->href != nsNameXSLT) && | |
3250 xmlStrEqual(attr->ns->href, nsNameXSLT)) | |
3251 { | |
3252 nsMapItem = xsltNewNamespaceMapItem(cctxt, | |
3253 doc, attr->ns, cur); | |
3254 if (nsMapItem == NULL) | |
3255 goto internal_err; | |
3256 attr->ns->href = nsNameXSLT; | |
3257 } | |
3258 #endif | |
3259 if (internalize) { | |
3260 /* | |
3261 * Internalize the attribute's value; the goal is to | |
3262 * speed up operations and minimize used space by | |
3263 * compiled stylesheets. | |
3264 */ | |
3265 txt = attr->children; | |
3266 /* | |
3267 * NOTE that this assumes only one | |
3268 * text-node in the attribute's content. | |
3269 */ | |
3270 if ((txt != NULL) && (txt->content != NULL) && | |
3271 (!xmlDictOwns(style->dict, txt->content))) | |
3272 { | |
3273 value = (xmlChar *) xmlDictLookup(style->dict, | |
3274 txt->content, -1); | |
3275 xmlNodeSetContent(txt, NULL); | |
3276 txt->content = value; | |
3277 } | |
3278 } | |
3279 /* | |
3280 * Process xml:space attributes. | |
3281 * ---------------------------- | |
3282 */ | |
3283 if ((findSpaceAttr != 0) && | |
3284 (attr->ns != NULL) && | |
3285 (attr->name != NULL) && | |
3286 (attr->name[0] == 's') && | |
3287 (attr->ns->prefix != NULL) && | |
3288 (attr->ns->prefix[0] == 'x') && | |
3289 (attr->ns->prefix[1] == 'm') && | |
3290 (attr->ns->prefix[2] == 'l') && | |
3291 (attr->ns->prefix[3] == 0)) | |
3292 { | |
3293 value = xmlGetNsProp(cur, BAD_CAST "space", | |
3294 XML_XML_NAMESPACE); | |
3295 if (value != NULL) { | |
3296 if (xmlStrEqual(value, BAD_CAST "preserve")) { | |
3297 cctxt->inode->preserveWhitespace = 1; | |
3298 } else if (xmlStrEqual(value, BAD_CAST "default")) { | |
3299 cctxt->inode->preserveWhitespace = 0; | |
3300 } else { | |
3301 /* Invalid value for xml:space. */ | |
3302 xsltTransformError(NULL, style, cur, | |
3303 "Attribute xml:space: Invalid value.\n"); | |
3304 cctxt->style->warnings++; | |
3305 } | |
3306 findSpaceAttr = 0; | |
3307 xmlFree(value); | |
3308 } | |
3309 | |
3310 } | |
3311 attr = attr->next; | |
3312 } while (attr != NULL); | |
3313 } | |
3314 /* | |
3315 * We'll descend into the children of element nodes only. | |
3316 */ | |
3317 if (cur->children != NULL) { | |
3318 cur = cur->children; | |
3319 continue; | |
3320 } | |
3321 } else if ((cur->type == XML_TEXT_NODE) || | |
3322 (cur->type == XML_CDATA_SECTION_NODE)) | |
3323 { | |
3324 /* | |
3325 * Merge adjacent text/CDATA-section-nodes | |
3326 * --------------------------------------- | |
3327 * In order to avoid breaking of existing stylesheets, | |
3328 * if the old behaviour is wanted (strictWhitespace == 0), | |
3329 * then we *won't* merge adjacent text-nodes | |
3330 * (except in xsl:text); this will ensure that whitespace-only | |
3331 * text nodes are (incorrectly) not stripped in some cases. | |
3332 * | |
3333 * Example: : <foo> <!-- bar -->zoo</foo> | |
3334 * Corrent (strict) result: <foo> zoo</foo> | |
3335 * Incorrect (old) result : <foo>zoo</foo> | |
3336 * | |
3337 * NOTE that we *will* merge adjacent text-nodes if | |
3338 * they are in xsl:text. | |
3339 * Example, the following: | |
3340 * <xsl:text> <!-- bar -->zoo<xsl:text> | |
3341 * will result in both cases in: | |
3342 * <xsl:text> zoo<xsl:text> | |
3343 */ | |
3344 cur->type = XML_TEXT_NODE; | |
3345 if ((strictWhitespace != 0) || (inXSLText != 0)) { | |
3346 /* | |
3347 * New behaviour; merge nodes. | |
3348 */ | |
3349 if (textNode == NULL) | |
3350 textNode = cur; | |
3351 else { | |
3352 if (cur->content != NULL) | |
3353 xmlNodeAddContent(textNode, cur->content); | |
3354 deleteNode = cur; | |
3355 } | |
3356 if ((cur->next == NULL) || | |
3357 (cur->next->type == XML_ELEMENT_NODE)) | |
3358 goto end_of_text; | |
3359 else | |
3360 goto next_sibling; | |
3361 } else { | |
3362 /* | |
3363 * Old behaviour. | |
3364 */ | |
3365 if (textNode == NULL) | |
3366 textNode = cur; | |
3367 goto end_of_text; | |
3368 } | |
3369 } else if ((cur->type == XML_COMMENT_NODE) || | |
3370 (cur->type == XML_PI_NODE)) | |
3371 { | |
3372 /* | |
3373 * Remove processing instructions and comments. | |
3374 */ | |
3375 deleteNode = cur; | |
3376 if ((cur->next == NULL) || | |
3377 (cur->next->type == XML_ELEMENT_NODE)) | |
3378 goto end_of_text; | |
3379 else | |
3380 goto next_sibling; | |
3381 } else { | |
3382 textNode = NULL; | |
3383 /* | |
3384 * Invalid node-type for this data-model. | |
3385 */ | |
3386 xsltTransformError(NULL, style, cur, | |
3387 "Invalid type of node for the XSLT data model.\n"); | |
3388 cctxt->style->errors++; | |
3389 goto next_sibling; | |
3390 } | |
3391 | |
3392 end_of_text: | |
3393 if (textNode) { | |
3394 value = textNode->content; | |
3395 /* | |
3396 * At this point all adjacent text/CDATA-section nodes | |
3397 * have been merged. | |
3398 * | |
3399 * Strip whitespace-only text-nodes. | |
3400 * (cctxt->inode->stripWhitespace) | |
3401 */ | |
3402 if ((value == NULL) || (*value == 0) || | |
3403 (((cctxt->inode->stripWhitespace) || | |
3404 (! cctxt->inode->preserveWhitespace)) && | |
3405 IS_BLANK(*value) && | |
3406 xsltIsBlank(value))) | |
3407 { | |
3408 if (textNode != cur) { | |
3409 xmlUnlinkNode(textNode); | |
3410 xmlFreeNode(textNode); | |
3411 } else | |
3412 deleteNode = textNode; | |
3413 textNode = NULL; | |
3414 goto next_sibling; | |
3415 } | |
3416 /* | |
3417 * Convert CDATA-section nodes to text-nodes. | |
3418 * TODO: Can this produce problems? | |
3419 */ | |
3420 if (textNode->type != XML_TEXT_NODE) { | |
3421 textNode->type = XML_TEXT_NODE; | |
3422 textNode->name = xmlStringText; | |
3423 } | |
3424 if (internalize && | |
3425 (textNode->content != NULL) && | |
3426 (!xmlDictOwns(style->dict, textNode->content))) | |
3427 { | |
3428 /* | |
3429 * Internalize the string. | |
3430 */ | |
3431 value = (xmlChar *) xmlDictLookup(style->dict, | |
3432 textNode->content, -1); | |
3433 xmlNodeSetContent(textNode, NULL); | |
3434 textNode->content = value; | |
3435 } | |
3436 textNode = NULL; | |
3437 /* | |
3438 * Note that "disable-output-escaping" of the xsl:text | |
3439 * element will be applied at a later level, when | |
3440 * XSLT elements are processed. | |
3441 */ | |
3442 } | |
3443 | |
3444 next_sibling: | |
3445 if (cur->type == XML_ELEMENT_NODE) { | |
3446 xsltCompilerNodePop(cctxt, cur); | |
3447 } | |
3448 if (cur == node) | |
3449 break; | |
3450 if (cur->next != NULL) { | |
3451 cur = cur->next; | |
3452 } else { | |
3453 cur = cur->parent; | |
3454 inXSLText = 0; | |
3455 goto next_sibling; | |
3456 }; | |
3457 } | |
3458 if (deleteNode != NULL) { | |
3459 #ifdef WITH_XSLT_DEBUG_PARSING | |
3460 xsltGenericDebug(xsltGenericDebugContext, | |
3461 "xsltParsePreprocessStylesheetTree: removing node\n"); | |
3462 #endif | |
3463 xmlUnlinkNode(deleteNode); | |
3464 xmlFreeNode(deleteNode); | |
3465 } | |
3466 return(0); | |
3467 | |
3468 internal_err: | |
3469 return(-1); | |
3470 } | |
3471 | |
3472 #endif /* XSLT_REFACTORED */ | |
3473 | |
3474 #ifdef XSLT_REFACTORED | |
3475 #else | |
3476 static void | |
3477 xsltPreprocessStylesheet(xsltStylesheetPtr style, xmlNodePtr cur) | |
3478 { | |
3479 xmlNodePtr deleteNode, styleelem; | |
3480 int internalize = 0; | |
3481 | |
3482 if ((style == NULL) || (cur == NULL)) | |
3483 return; | |
3484 | |
3485 if ((cur->doc != NULL) && (style->dict != NULL) && | |
3486 (cur->doc->dict == style->dict)) | |
3487 internalize = 1; | |
3488 else | |
3489 style->internalized = 0; | |
3490 | |
3491 if ((cur != NULL) && (IS_XSLT_ELEM(cur)) && | |
3492 (IS_XSLT_NAME(cur, "stylesheet"))) { | |
3493 styleelem = cur; | |
3494 } else { | |
3495 styleelem = NULL; | |
3496 } | |
3497 | |
3498 /* | |
3499 * This content comes from the stylesheet | |
3500 * For stylesheets, the set of whitespace-preserving | |
3501 * element names consists of just xsl:text. | |
3502 */ | |
3503 deleteNode = NULL; | |
3504 while (cur != NULL) { | |
3505 if (deleteNode != NULL) { | |
3506 #ifdef WITH_XSLT_DEBUG_BLANKS | |
3507 xsltGenericDebug(xsltGenericDebugContext, | |
3508 "xsltPreprocessStylesheet: removing ignorable blank node\n"); | |
3509 #endif | |
3510 xmlUnlinkNode(deleteNode); | |
3511 xmlFreeNode(deleteNode); | |
3512 deleteNode = NULL; | |
3513 } | |
3514 if (cur->type == XML_ELEMENT_NODE) { | |
3515 int exclPrefixes; | |
3516 /* | |
3517 * Internalize attributes values. | |
3518 */ | |
3519 if ((internalize) && (cur->properties != NULL)) { | |
3520 xmlAttrPtr attr = cur->properties; | |
3521 xmlNodePtr txt; | |
3522 | |
3523 while (attr != NULL) { | |
3524 txt = attr->children; | |
3525 if ((txt != NULL) && (txt->type == XML_TEXT_NODE) && | |
3526 (txt->content != NULL) && | |
3527 (!xmlDictOwns(style->dict, txt->content))) | |
3528 { | |
3529 xmlChar *tmp; | |
3530 | |
3531 /* | |
3532 * internalize the text string, goal is to speed | |
3533 * up operations and minimize used space by compiled | |
3534 * stylesheets. | |
3535 */ | |
3536 tmp = (xmlChar *) xmlDictLookup(style->dict, | |
3537 txt->content, -1); | |
3538 if (tmp != txt->content) { | |
3539 xmlNodeSetContent(txt, NULL); | |
3540 txt->content = tmp; | |
3541 } | |
3542 } | |
3543 attr = attr->next; | |
3544 } | |
3545 } | |
3546 if (IS_XSLT_ELEM(cur)) { | |
3547 exclPrefixes = 0; | |
3548 if (IS_XSLT_NAME(cur, "text")) { | |
3549 for (;exclPrefixes > 0;exclPrefixes--) | |
3550 exclPrefixPop(style); | |
3551 goto skip_children; | |
3552 } | |
3553 } else { | |
3554 exclPrefixes = xsltParseStylesheetExcludePrefix(style, cur, 0); | |
3555 } | |
3556 | |
3557 if ((cur->nsDef != NULL) && (style->exclPrefixNr > 0)) { | |
3558 xmlNsPtr ns = cur->nsDef, prev = NULL, next; | |
3559 xmlNodePtr root = NULL; | |
3560 int i, moved; | |
3561 | |
3562 root = xmlDocGetRootElement(cur->doc); | |
3563 if ((root != NULL) && (root != cur)) { | |
3564 while (ns != NULL) { | |
3565 moved = 0; | |
3566 next = ns->next; | |
3567 for (i = 0;i < style->exclPrefixNr;i++) { | |
3568 if ((ns->prefix != NULL) && | |
3569 (xmlStrEqual(ns->href, | |
3570 style->exclPrefixTab[i]))) { | |
3571 /* | |
3572 * Move the namespace definition on the root | |
3573 * element to avoid duplicating it without | |
3574 * loosing it. | |
3575 */ | |
3576 if (prev == NULL) { | |
3577 cur->nsDef = ns->next; | |
3578 } else { | |
3579 prev->next = ns->next; | |
3580 } | |
3581 ns->next = root->nsDef; | |
3582 root->nsDef = ns; | |
3583 moved = 1; | |
3584 break; | |
3585 } | |
3586 } | |
3587 if (moved == 0) | |
3588 prev = ns; | |
3589 ns = next; | |
3590 } | |
3591 } | |
3592 } | |
3593 /* | |
3594 * If we have prefixes locally, recurse and pop them up when | |
3595 * going back | |
3596 */ | |
3597 if (exclPrefixes > 0) { | |
3598 xsltPreprocessStylesheet(style, cur->children); | |
3599 for (;exclPrefixes > 0;exclPrefixes--) | |
3600 exclPrefixPop(style); | |
3601 goto skip_children; | |
3602 } | |
3603 } else if (cur->type == XML_TEXT_NODE) { | |
3604 if (IS_BLANK_NODE(cur)) { | |
3605 if (xmlNodeGetSpacePreserve(cur->parent) != 1) { | |
3606 deleteNode = cur; | |
3607 } | |
3608 } else if ((cur->content != NULL) && (internalize) && | |
3609 (!xmlDictOwns(style->dict, cur->content))) { | |
3610 xmlChar *tmp; | |
3611 | |
3612 /* | |
3613 * internalize the text string, goal is to speed | |
3614 * up operations and minimize used space by compiled | |
3615 * stylesheets. | |
3616 */ | |
3617 tmp = (xmlChar *) xmlDictLookup(style->dict, cur->content, -1); | |
3618 xmlNodeSetContent(cur, NULL); | |
3619 cur->content = tmp; | |
3620 } | |
3621 } else if ((cur->type != XML_ELEMENT_NODE) && | |
3622 (cur->type != XML_CDATA_SECTION_NODE)) { | |
3623 deleteNode = cur; | |
3624 goto skip_children; | |
3625 } | |
3626 | |
3627 /* | |
3628 * Skip to next node. In case of a namespaced element children of | |
3629 * the stylesheet and not in the XSLT namespace and not an extension | |
3630 * element, ignore its content. | |
3631 */ | |
3632 if ((cur->type == XML_ELEMENT_NODE) && (cur->ns != NULL) && | |
3633 (styleelem != NULL) && (cur->parent == styleelem) && | |
3634 (!xmlStrEqual(cur->ns->href, XSLT_NAMESPACE)) && | |
3635 (!xsltCheckExtURI(style, cur->ns->href))) { | |
3636 goto skip_children; | |
3637 } else if (cur->children != NULL) { | |
3638 if ((cur->children->type != XML_ENTITY_DECL) && | |
3639 (cur->children->type != XML_ENTITY_REF_NODE) && | |
3640 (cur->children->type != XML_ENTITY_NODE)) { | |
3641 cur = cur->children; | |
3642 continue; | |
3643 } | |
3644 } | |
3645 | |
3646 skip_children: | |
3647 if (cur->next != NULL) { | |
3648 cur = cur->next; | |
3649 continue; | |
3650 } | |
3651 do { | |
3652 | |
3653 cur = cur->parent; | |
3654 if (cur == NULL) | |
3655 break; | |
3656 if (cur == (xmlNodePtr) style->doc) { | |
3657 cur = NULL; | |
3658 break; | |
3659 } | |
3660 if (cur->next != NULL) { | |
3661 cur = cur->next; | |
3662 break; | |
3663 } | |
3664 } while (cur != NULL); | |
3665 } | |
3666 if (deleteNode != NULL) { | |
3667 #ifdef WITH_XSLT_DEBUG_PARSING | |
3668 xsltGenericDebug(xsltGenericDebugContext, | |
3669 "xsltPreprocessStylesheet: removing ignorable blank node\n"); | |
3670 #endif | |
3671 xmlUnlinkNode(deleteNode); | |
3672 xmlFreeNode(deleteNode); | |
3673 } | |
3674 } | |
3675 #endif /* end of else XSLT_REFACTORED */ | |
3676 | |
3677 /** | |
3678 * xsltGatherNamespaces: | |
3679 * @style: the XSLT stylesheet | |
3680 * | |
3681 * Browse the stylesheet and build the namspace hash table which | |
3682 * will be used for XPath interpretation. If needed do a bit of normalization | |
3683 */ | |
3684 | |
3685 static void | |
3686 xsltGatherNamespaces(xsltStylesheetPtr style) { | |
3687 xmlNodePtr cur; | |
3688 const xmlChar *URI; | |
3689 | |
3690 if (style == NULL) | |
3691 return; | |
3692 /* | |
3693 * TODO: basically if the stylesheet uses the same prefix for different | |
3694 * patterns, well they may be in problem, hopefully they will get | |
3695 * a warning first. | |
3696 */ | |
3697 /* | |
3698 * TODO: Eliminate the use of the hash for XPath expressions. | |
3699 * An expression should be evaluated in the context of the in-scope | |
3700 * namespaces; eliminate the restriction of an XML document to contain | |
3701 * no duplicate prefixes for different namespace names. | |
3702 * | |
3703 */ | |
3704 cur = xmlDocGetRootElement(style->doc); | |
3705 while (cur != NULL) { | |
3706 if (cur->type == XML_ELEMENT_NODE) { | |
3707 xmlNsPtr ns = cur->nsDef; | |
3708 while (ns != NULL) { | |
3709 if (ns->prefix != NULL) { | |
3710 if (style->nsHash == NULL) { | |
3711 style->nsHash = xmlHashCreate(10); | |
3712 if (style->nsHash == NULL) { | |
3713 xsltTransformError(NULL, style, cur, | |
3714 "xsltGatherNamespaces: failed to create hash table\n"); | |
3715 style->errors++; | |
3716 return; | |
3717 } | |
3718 } | |
3719 URI = xmlHashLookup(style->nsHash, ns->prefix); | |
3720 if ((URI != NULL) && (!xmlStrEqual(URI, ns->href))) { | |
3721 xsltTransformError(NULL, style, cur, | |
3722 "Namespaces prefix %s used for multiple namespaces\n",ns->prefix); | |
3723 style->warnings++; | |
3724 } else if (URI == NULL) { | |
3725 xmlHashUpdateEntry(style->nsHash, ns->prefix, | |
3726 (void *) ns->href, (xmlHashDeallocator)xmlFree); | |
3727 | |
3728 #ifdef WITH_XSLT_DEBUG_PARSING | |
3729 xsltGenericDebug(xsltGenericDebugContext, | |
3730 "Added namespace: %s mapped to %s\n", ns->prefix, ns->href); | |
3731 #endif | |
3732 } | |
3733 } | |
3734 ns = ns->next; | |
3735 } | |
3736 } | |
3737 | |
3738 /* | |
3739 * Skip to next node | |
3740 */ | |
3741 if (cur->children != NULL) { | |
3742 if (cur->children->type != XML_ENTITY_DECL) { | |
3743 cur = cur->children; | |
3744 continue; | |
3745 } | |
3746 } | |
3747 if (cur->next != NULL) { | |
3748 cur = cur->next; | |
3749 continue; | |
3750 } | |
3751 | |
3752 do { | |
3753 cur = cur->parent; | |
3754 if (cur == NULL) | |
3755 break; | |
3756 if (cur == (xmlNodePtr) style->doc) { | |
3757 cur = NULL; | |
3758 break; | |
3759 } | |
3760 if (cur->next != NULL) { | |
3761 cur = cur->next; | |
3762 break; | |
3763 } | |
3764 } while (cur != NULL); | |
3765 } | |
3766 } | |
3767 | |
3768 #ifdef XSLT_REFACTORED | |
3769 | |
3770 static xsltStyleType | |
3771 xsltGetXSLTElementTypeByNode(xsltCompilerCtxtPtr cctxt, | |
3772 xmlNodePtr node) | |
3773 { | |
3774 if ((node == NULL) || (node->type != XML_ELEMENT_NODE) || | |
3775 (node->name == NULL)) | |
3776 return(0); | |
3777 | |
3778 if (node->name[0] == 'a') { | |
3779 if (IS_XSLT_NAME(node, "apply-templates")) | |
3780 return(XSLT_FUNC_APPLYTEMPLATES); | |
3781 else if (IS_XSLT_NAME(node, "attribute")) | |
3782 return(XSLT_FUNC_ATTRIBUTE); | |
3783 else if (IS_XSLT_NAME(node, "apply-imports")) | |
3784 return(XSLT_FUNC_APPLYIMPORTS); | |
3785 else if (IS_XSLT_NAME(node, "attribute-set")) | |
3786 return(0); | |
3787 | |
3788 } else if (node->name[0] == 'c') { | |
3789 if (IS_XSLT_NAME(node, "choose")) | |
3790 return(XSLT_FUNC_CHOOSE); | |
3791 else if (IS_XSLT_NAME(node, "copy")) | |
3792 return(XSLT_FUNC_COPY); | |
3793 else if (IS_XSLT_NAME(node, "copy-of")) | |
3794 return(XSLT_FUNC_COPYOF); | |
3795 else if (IS_XSLT_NAME(node, "call-template")) | |
3796 return(XSLT_FUNC_CALLTEMPLATE); | |
3797 else if (IS_XSLT_NAME(node, "comment")) | |
3798 return(XSLT_FUNC_COMMENT); | |
3799 | |
3800 } else if (node->name[0] == 'd') { | |
3801 if (IS_XSLT_NAME(node, "document")) | |
3802 return(XSLT_FUNC_DOCUMENT); | |
3803 else if (IS_XSLT_NAME(node, "decimal-format")) | |
3804 return(0); | |
3805 | |
3806 } else if (node->name[0] == 'e') { | |
3807 if (IS_XSLT_NAME(node, "element")) | |
3808 return(XSLT_FUNC_ELEMENT); | |
3809 | |
3810 } else if (node->name[0] == 'f') { | |
3811 if (IS_XSLT_NAME(node, "for-each")) | |
3812 return(XSLT_FUNC_FOREACH); | |
3813 else if (IS_XSLT_NAME(node, "fallback")) | |
3814 return(XSLT_FUNC_FALLBACK); | |
3815 | |
3816 } else if (*(node->name) == 'i') { | |
3817 if (IS_XSLT_NAME(node, "if")) | |
3818 return(XSLT_FUNC_IF); | |
3819 else if (IS_XSLT_NAME(node, "include")) | |
3820 return(0); | |
3821 else if (IS_XSLT_NAME(node, "import")) | |
3822 return(0); | |
3823 | |
3824 } else if (*(node->name) == 'k') { | |
3825 if (IS_XSLT_NAME(node, "key")) | |
3826 return(0); | |
3827 | |
3828 } else if (*(node->name) == 'm') { | |
3829 if (IS_XSLT_NAME(node, "message")) | |
3830 return(XSLT_FUNC_MESSAGE); | |
3831 | |
3832 } else if (*(node->name) == 'n') { | |
3833 if (IS_XSLT_NAME(node, "number")) | |
3834 return(XSLT_FUNC_NUMBER); | |
3835 else if (IS_XSLT_NAME(node, "namespace-alias")) | |
3836 return(0); | |
3837 | |
3838 } else if (*(node->name) == 'o') { | |
3839 if (IS_XSLT_NAME(node, "otherwise")) | |
3840 return(XSLT_FUNC_OTHERWISE); | |
3841 else if (IS_XSLT_NAME(node, "output")) | |
3842 return(0); | |
3843 | |
3844 } else if (*(node->name) == 'p') { | |
3845 if (IS_XSLT_NAME(node, "param")) | |
3846 return(XSLT_FUNC_PARAM); | |
3847 else if (IS_XSLT_NAME(node, "processing-instruction")) | |
3848 return(XSLT_FUNC_PI); | |
3849 else if (IS_XSLT_NAME(node, "preserve-space")) | |
3850 return(0); | |
3851 | |
3852 } else if (*(node->name) == 's') { | |
3853 if (IS_XSLT_NAME(node, "sort")) | |
3854 return(XSLT_FUNC_SORT); | |
3855 else if (IS_XSLT_NAME(node, "strip-space")) | |
3856 return(0); | |
3857 else if (IS_XSLT_NAME(node, "stylesheet")) | |
3858 return(0); | |
3859 | |
3860 } else if (node->name[0] == 't') { | |
3861 if (IS_XSLT_NAME(node, "text")) | |
3862 return(XSLT_FUNC_TEXT); | |
3863 else if (IS_XSLT_NAME(node, "template")) | |
3864 return(0); | |
3865 else if (IS_XSLT_NAME(node, "transform")) | |
3866 return(0); | |
3867 | |
3868 } else if (*(node->name) == 'v') { | |
3869 if (IS_XSLT_NAME(node, "value-of")) | |
3870 return(XSLT_FUNC_VALUEOF); | |
3871 else if (IS_XSLT_NAME(node, "variable")) | |
3872 return(XSLT_FUNC_VARIABLE); | |
3873 | |
3874 } else if (*(node->name) == 'w') { | |
3875 if (IS_XSLT_NAME(node, "when")) | |
3876 return(XSLT_FUNC_WHEN); | |
3877 if (IS_XSLT_NAME(node, "with-param")) | |
3878 return(XSLT_FUNC_WITHPARAM); | |
3879 } | |
3880 return(0); | |
3881 } | |
3882 | |
3883 /** | |
3884 * xsltParseAnyXSLTElem: | |
3885 * | |
3886 * @cctxt: the compilation context | |
3887 * @elem: the element node of the XSLT instruction | |
3888 * | |
3889 * Parses, validates the content models and compiles XSLT instructions. | |
3890 * | |
3891 * Returns 0 if everything's fine; | |
3892 * -1 on API or internal errors. | |
3893 */ | |
3894 int | |
3895 xsltParseAnyXSLTElem(xsltCompilerCtxtPtr cctxt, xmlNodePtr elem) | |
3896 { | |
3897 if ((cctxt == NULL) || (elem == NULL) || | |
3898 (elem->type != XML_ELEMENT_NODE)) | |
3899 return(-1); | |
3900 | |
3901 elem->psvi = NULL; | |
3902 | |
3903 if (! (IS_XSLT_ELEM_FAST(elem))) | |
3904 return(-1); | |
3905 /* | |
3906 * Detection of handled content of extension instructions. | |
3907 */ | |
3908 if (cctxt->inode->category == XSLT_ELEMENT_CATEGORY_EXTENSION) { | |
3909 cctxt->inode->extContentHandled = 1; | |
3910 } | |
3911 | |
3912 xsltCompilerNodePush(cctxt, elem); | |
3913 /* | |
3914 * URGENT TODO: Find a way to speed up this annoying redundant | |
3915 * textual node-name and namespace comparison. | |
3916 */ | |
3917 if (cctxt->inode->prev->curChildType != 0) | |
3918 cctxt->inode->type = cctxt->inode->prev->curChildType; | |
3919 else | |
3920 cctxt->inode->type = xsltGetXSLTElementTypeByNode(cctxt, elem); | |
3921 /* | |
3922 * Update the in-scope namespaces if needed. | |
3923 */ | |
3924 if (elem->nsDef != NULL) | |
3925 cctxt->inode->inScopeNs = | |
3926 xsltCompilerBuildInScopeNsList(cctxt, elem); | |
3927 /* | |
3928 * xsltStylePreCompute(): | |
3929 * This will compile the information found on the current | |
3930 * element's attributes. NOTE that this won't process the | |
3931 * children of the instruction. | |
3932 */ | |
3933 xsltStylePreCompute(cctxt->style, elem); | |
3934 /* | |
3935 * TODO: How to react on errors in xsltStylePreCompute() ? | |
3936 */ | |
3937 | |
3938 /* | |
3939 * Validate the content model of the XSLT-element. | |
3940 */ | |
3941 switch (cctxt->inode->type) { | |
3942 case XSLT_FUNC_APPLYIMPORTS: | |
3943 /* EMPTY */ | |
3944 goto empty_content; | |
3945 case XSLT_FUNC_APPLYTEMPLATES: | |
3946 /* <!-- Content: (xsl:sort | xsl:with-param)* --> */ | |
3947 goto apply_templates; | |
3948 case XSLT_FUNC_ATTRIBUTE: | |
3949 /* <!-- Content: template --> */ | |
3950 goto sequence_constructor; | |
3951 case XSLT_FUNC_CALLTEMPLATE: | |
3952 /* <!-- Content: xsl:with-param* --> */ | |
3953 goto call_template; | |
3954 case XSLT_FUNC_CHOOSE: | |
3955 /* <!-- Content: (xsl:when+, xsl:otherwise?) --> */ | |
3956 goto choose; | |
3957 case XSLT_FUNC_COMMENT: | |
3958 /* <!-- Content: template --> */ | |
3959 goto sequence_constructor; | |
3960 case XSLT_FUNC_COPY: | |
3961 /* <!-- Content: template --> */ | |
3962 goto sequence_constructor; | |
3963 case XSLT_FUNC_COPYOF: | |
3964 /* EMPTY */ | |
3965 goto empty_content; | |
3966 case XSLT_FUNC_DOCUMENT: /* Extra one */ | |
3967 /* ?? template ?? */ | |
3968 goto sequence_constructor; | |
3969 case XSLT_FUNC_ELEMENT: | |
3970 /* <!-- Content: template --> */ | |
3971 goto sequence_constructor; | |
3972 case XSLT_FUNC_FALLBACK: | |
3973 /* <!-- Content: template --> */ | |
3974 goto sequence_constructor; | |
3975 case XSLT_FUNC_FOREACH: | |
3976 /* <!-- Content: (xsl:sort*, template) --> */ | |
3977 goto for_each; | |
3978 case XSLT_FUNC_IF: | |
3979 /* <!-- Content: template --> */ | |
3980 goto sequence_constructor; | |
3981 case XSLT_FUNC_OTHERWISE: | |
3982 /* <!-- Content: template --> */ | |
3983 goto sequence_constructor; | |
3984 case XSLT_FUNC_MESSAGE: | |
3985 /* <!-- Content: template --> */ | |
3986 goto sequence_constructor; | |
3987 case XSLT_FUNC_NUMBER: | |
3988 /* EMPTY */ | |
3989 goto empty_content; | |
3990 case XSLT_FUNC_PARAM: | |
3991 /* | |
3992 * Check for redefinition. | |
3993 */ | |
3994 if ((elem->psvi != NULL) && (cctxt->ivar != NULL)) { | |
3995 xsltVarInfoPtr ivar = cctxt->ivar; | |
3996 | |
3997 do { | |
3998 if ((ivar->name == | |
3999 ((xsltStyleItemParamPtr) elem->psvi)->name) && | |
4000 (ivar->nsName == | |
4001 ((xsltStyleItemParamPtr) elem->psvi)->ns)) | |
4002 { | |
4003 elem->psvi = NULL; | |
4004 xsltTransformError(NULL, cctxt->style, elem, | |
4005 "Redefinition of variable or parameter '%s'.\n", | |
4006 ivar->name); | |
4007 cctxt->style->errors++; | |
4008 goto error; | |
4009 } | |
4010 ivar = ivar->prev; | |
4011 } while (ivar != NULL); | |
4012 } | |
4013 /* <!-- Content: template --> */ | |
4014 goto sequence_constructor; | |
4015 case XSLT_FUNC_PI: | |
4016 /* <!-- Content: template --> */ | |
4017 goto sequence_constructor; | |
4018 case XSLT_FUNC_SORT: | |
4019 /* EMPTY */ | |
4020 goto empty_content; | |
4021 case XSLT_FUNC_TEXT: | |
4022 /* <!-- Content: #PCDATA --> */ | |
4023 goto text; | |
4024 case XSLT_FUNC_VALUEOF: | |
4025 /* EMPTY */ | |
4026 goto empty_content; | |
4027 case XSLT_FUNC_VARIABLE: | |
4028 /* | |
4029 * Check for redefinition. | |
4030 */ | |
4031 if ((elem->psvi != NULL) && (cctxt->ivar != NULL)) { | |
4032 xsltVarInfoPtr ivar = cctxt->ivar; | |
4033 | |
4034 do { | |
4035 if ((ivar->name == | |
4036 ((xsltStyleItemVariablePtr) elem->psvi)->name) && | |
4037 (ivar->nsName == | |
4038 ((xsltStyleItemVariablePtr) elem->psvi)->ns)) | |
4039 { | |
4040 elem->psvi = NULL; | |
4041 xsltTransformError(NULL, cctxt->style, elem, | |
4042 "Redefinition of variable or parameter '%s'.\n", | |
4043 ivar->name); | |
4044 cctxt->style->errors++; | |
4045 goto error; | |
4046 } | |
4047 ivar = ivar->prev; | |
4048 } while (ivar != NULL); | |
4049 } | |
4050 /* <!-- Content: template --> */ | |
4051 goto sequence_constructor; | |
4052 case XSLT_FUNC_WHEN: | |
4053 /* <!-- Content: template --> */ | |
4054 goto sequence_constructor; | |
4055 case XSLT_FUNC_WITHPARAM: | |
4056 /* <!-- Content: template --> */ | |
4057 goto sequence_constructor; | |
4058 default: | |
4059 #ifdef WITH_XSLT_DEBUG_PARSING | |
4060 xsltGenericDebug(xsltGenericDebugContext, | |
4061 "xsltParseXSLTNode: Unhandled XSLT element '%s'.\n", | |
4062 elem->name); | |
4063 #endif | |
4064 xsltTransformError(NULL, cctxt->style, elem, | |
4065 "xsltParseXSLTNode: Internal error; " | |
4066 "unhandled XSLT element '%s'.\n", elem->name); | |
4067 cctxt->style->errors++; | |
4068 goto internal_err; | |
4069 } | |
4070 | |
4071 apply_templates: | |
4072 /* <!-- Content: (xsl:sort | xsl:with-param)* --> */ | |
4073 if (elem->children != NULL) { | |
4074 xmlNodePtr child = elem->children; | |
4075 do { | |
4076 if (child->type == XML_ELEMENT_NODE) { | |
4077 if (IS_XSLT_ELEM_FAST(child)) { | |
4078 if (xmlStrEqual(child->name, BAD_CAST "with-param")) { | |
4079 cctxt->inode->curChildType = XSLT_FUNC_WITHPARAM; | |
4080 xsltParseAnyXSLTElem(cctxt, child); | |
4081 } else if (xmlStrEqual(child->name, BAD_CAST "sort")) { | |
4082 cctxt->inode->curChildType = XSLT_FUNC_SORT; | |
4083 xsltParseAnyXSLTElem(cctxt, child); | |
4084 } else | |
4085 xsltParseContentError(cctxt->style, child); | |
4086 } else | |
4087 xsltParseContentError(cctxt->style, child); | |
4088 } | |
4089 child = child->next; | |
4090 } while (child != NULL); | |
4091 } | |
4092 goto exit; | |
4093 | |
4094 call_template: | |
4095 /* <!-- Content: xsl:with-param* --> */ | |
4096 if (elem->children != NULL) { | |
4097 xmlNodePtr child = elem->children; | |
4098 do { | |
4099 if (child->type == XML_ELEMENT_NODE) { | |
4100 if (IS_XSLT_ELEM_FAST(child)) { | |
4101 xsltStyleType type; | |
4102 | |
4103 type = xsltGetXSLTElementTypeByNode(cctxt, child); | |
4104 if (type == XSLT_FUNC_WITHPARAM) { | |
4105 cctxt->inode->curChildType = XSLT_FUNC_WITHPARAM; | |
4106 xsltParseAnyXSLTElem(cctxt, child); | |
4107 } else { | |
4108 xsltParseContentError(cctxt->style, child); | |
4109 } | |
4110 } else | |
4111 xsltParseContentError(cctxt->style, child); | |
4112 } | |
4113 child = child->next; | |
4114 } while (child != NULL); | |
4115 } | |
4116 goto exit; | |
4117 | |
4118 text: | |
4119 if (elem->children != NULL) { | |
4120 xmlNodePtr child = elem->children; | |
4121 do { | |
4122 if ((child->type != XML_TEXT_NODE) && | |
4123 (child->type != XML_CDATA_SECTION_NODE)) | |
4124 { | |
4125 xsltTransformError(NULL, cctxt->style, elem, | |
4126 "The XSLT 'text' element must have only character " | |
4127 "data as content.\n"); | |
4128 } | |
4129 child = child->next; | |
4130 } while (child != NULL); | |
4131 } | |
4132 goto exit; | |
4133 | |
4134 empty_content: | |
4135 if (elem->children != NULL) { | |
4136 xmlNodePtr child = elem->children; | |
4137 /* | |
4138 * Relaxed behaviour: we will allow whitespace-only text-nodes. | |
4139 */ | |
4140 do { | |
4141 if (((child->type != XML_TEXT_NODE) && | |
4142 (child->type != XML_CDATA_SECTION_NODE)) || | |
4143 (! IS_BLANK_NODE(child))) | |
4144 { | |
4145 xsltTransformError(NULL, cctxt->style, elem, | |
4146 "This XSLT element must have no content.\n"); | |
4147 cctxt->style->errors++; | |
4148 break; | |
4149 } | |
4150 child = child->next; | |
4151 } while (child != NULL); | |
4152 } | |
4153 goto exit; | |
4154 | |
4155 choose: | |
4156 /* <!-- Content: (xsl:when+, xsl:otherwise?) --> */ | |
4157 /* | |
4158 * TODO: text-nodes in between are *not* allowed in XSLT 1.0. | |
4159 * The old behaviour did not check this. | |
4160 * NOTE: In XSLT 2.0 they are stripped beforehand | |
4161 * if whitespace-only (regardless of xml:space). | |
4162 */ | |
4163 if (elem->children != NULL) { | |
4164 xmlNodePtr child = elem->children; | |
4165 int nbWhen = 0, nbOtherwise = 0, err = 0; | |
4166 do { | |
4167 if (child->type == XML_ELEMENT_NODE) { | |
4168 if (IS_XSLT_ELEM_FAST(child)) { | |
4169 xsltStyleType type; | |
4170 | |
4171 type = xsltGetXSLTElementTypeByNode(cctxt, child); | |
4172 if (type == XSLT_FUNC_WHEN) { | |
4173 nbWhen++; | |
4174 if (nbOtherwise) { | |
4175 xsltParseContentError(cctxt->style, child); | |
4176 err = 1; | |
4177 break; | |
4178 } | |
4179 cctxt->inode->curChildType = XSLT_FUNC_WHEN; | |
4180 xsltParseAnyXSLTElem(cctxt, child); | |
4181 } else if (type == XSLT_FUNC_OTHERWISE) { | |
4182 if (! nbWhen) { | |
4183 xsltParseContentError(cctxt->style, child); | |
4184 err = 1; | |
4185 break; | |
4186 } | |
4187 if (nbOtherwise) { | |
4188 xsltTransformError(NULL, cctxt->style, elem, | |
4189 "The XSLT 'choose' element must not contain " | |
4190 "more than one XSLT 'otherwise' element.\n"); | |
4191 cctxt->style->errors++; | |
4192 err = 1; | |
4193 break; | |
4194 } | |
4195 nbOtherwise++; | |
4196 cctxt->inode->curChildType = XSLT_FUNC_OTHERWISE; | |
4197 xsltParseAnyXSLTElem(cctxt, child); | |
4198 } else | |
4199 xsltParseContentError(cctxt->style, child); | |
4200 } else | |
4201 xsltParseContentError(cctxt->style, child); | |
4202 } | |
4203 /* | |
4204 else | |
4205 xsltParseContentError(cctxt, child); | |
4206 */ | |
4207 child = child->next; | |
4208 } while (child != NULL); | |
4209 if ((! err) && (! nbWhen)) { | |
4210 xsltTransformError(NULL, cctxt->style, elem, | |
4211 "The XSLT element 'choose' must contain at least one " | |
4212 "XSLT element 'when'.\n"); | |
4213 cctxt->style->errors++; | |
4214 } | |
4215 } | |
4216 goto exit; | |
4217 | |
4218 for_each: | |
4219 /* <!-- Content: (xsl:sort*, template) --> */ | |
4220 /* | |
4221 * NOTE: Text-nodes before xsl:sort are *not* allowed in XSLT 1.0. | |
4222 * The old behaviour did not allow this, but it catched this | |
4223 * only at transformation-time. | |
4224 * In XSLT 2.0 they are stripped beforehand if whitespace-only | |
4225 * (regardless of xml:space). | |
4226 */ | |
4227 if (elem->children != NULL) { | |
4228 xmlNodePtr child = elem->children; | |
4229 /* | |
4230 * Parse xsl:sort first. | |
4231 */ | |
4232 do { | |
4233 if ((child->type == XML_ELEMENT_NODE) && | |
4234 IS_XSLT_ELEM_FAST(child)) | |
4235 { | |
4236 if (xsltGetXSLTElementTypeByNode(cctxt, child) == | |
4237 XSLT_FUNC_SORT) | |
4238 { | |
4239 cctxt->inode->curChildType = XSLT_FUNC_SORT; | |
4240 xsltParseAnyXSLTElem(cctxt, child); | |
4241 } else | |
4242 break; | |
4243 } else | |
4244 break; | |
4245 child = child->next; | |
4246 } while (child != NULL); | |
4247 /* | |
4248 * Parse the sequece constructor. | |
4249 */ | |
4250 if (child != NULL) | |
4251 xsltParseSequenceConstructor(cctxt, child); | |
4252 } | |
4253 goto exit; | |
4254 | |
4255 sequence_constructor: | |
4256 /* | |
4257 * Parse the sequence constructor. | |
4258 */ | |
4259 if (elem->children != NULL) | |
4260 xsltParseSequenceConstructor(cctxt, elem->children); | |
4261 | |
4262 /* | |
4263 * Register information for vars/params. Only needed if there | |
4264 * are any following siblings. | |
4265 */ | |
4266 if ((elem->next != NULL) && | |
4267 ((cctxt->inode->type == XSLT_FUNC_VARIABLE) || | |
4268 (cctxt->inode->type == XSLT_FUNC_PARAM))) | |
4269 { | |
4270 if ((elem->psvi != NULL) && | |
4271 (((xsltStyleBasicItemVariablePtr) elem->psvi)->name)) | |
4272 { | |
4273 xsltCompilerVarInfoPush(cctxt, elem, | |
4274 ((xsltStyleBasicItemVariablePtr) elem->psvi)->name, | |
4275 ((xsltStyleBasicItemVariablePtr) elem->psvi)->ns); | |
4276 } | |
4277 } | |
4278 | |
4279 error: | |
4280 exit: | |
4281 xsltCompilerNodePop(cctxt, elem); | |
4282 return(0); | |
4283 | |
4284 internal_err: | |
4285 xsltCompilerNodePop(cctxt, elem); | |
4286 return(-1); | |
4287 } | |
4288 | |
4289 /** | |
4290 * xsltForwardsCompatUnkownItemCreate: | |
4291 * | |
4292 * @cctxt: the compilation context | |
4293 * | |
4294 * Creates a compiled representation of the unknown | |
4295 * XSLT instruction. | |
4296 * | |
4297 * Returns the compiled representation. | |
4298 */ | |
4299 static xsltStyleItemUknownPtr | |
4300 xsltForwardsCompatUnkownItemCreate(xsltCompilerCtxtPtr cctxt) | |
4301 { | |
4302 xsltStyleItemUknownPtr item; | |
4303 | |
4304 item = (xsltStyleItemUknownPtr) xmlMalloc(sizeof(xsltStyleItemUknown)); | |
4305 if (item == NULL) { | |
4306 xsltTransformError(NULL, cctxt->style, NULL, | |
4307 "Internal error in xsltForwardsCompatUnkownItemCreate(): " | |
4308 "Failed to allocate memory.\n"); | |
4309 cctxt->style->errors++; | |
4310 return(NULL); | |
4311 } | |
4312 memset(item, 0, sizeof(xsltStyleItemUknown)); | |
4313 item->type = XSLT_FUNC_UNKOWN_FORWARDS_COMPAT; | |
4314 /* | |
4315 * Store it in the stylesheet. | |
4316 */ | |
4317 item->next = cctxt->style->preComps; | |
4318 cctxt->style->preComps = (xsltElemPreCompPtr) item; | |
4319 return(item); | |
4320 } | |
4321 | |
4322 /** | |
4323 * xsltParseUnknownXSLTElem: | |
4324 * | |
4325 * @cctxt: the compilation context | |
4326 * @node: the element of the unknown XSLT instruction | |
4327 * | |
4328 * Parses an unknown XSLT element. | |
4329 * If forwards compatible mode is enabled this will allow | |
4330 * such an unknown XSLT and; otherwise it is rejected. | |
4331 * | |
4332 * Returns 1 in the unknown XSLT instruction is rejected, | |
4333 * 0 if everything's fine and | |
4334 * -1 on API or internal errors. | |
4335 */ | |
4336 static int | |
4337 xsltParseUnknownXSLTElem(xsltCompilerCtxtPtr cctxt, | |
4338 xmlNodePtr node) | |
4339 { | |
4340 if ((cctxt == NULL) || (node == NULL) || (node->type != XML_ELEMENT_NODE)) | |
4341 return(-1); | |
4342 | |
4343 /* | |
4344 * Detection of handled content of extension instructions. | |
4345 */ | |
4346 if (cctxt->inode->category == XSLT_ELEMENT_CATEGORY_EXTENSION) { | |
4347 cctxt->inode->extContentHandled = 1; | |
4348 } | |
4349 if (cctxt->inode->forwardsCompat == 0) { | |
4350 /* | |
4351 * We are not in forwards-compatible mode, so raise an error. | |
4352 */ | |
4353 xsltTransformError(NULL, cctxt->style, node, | |
4354 "Unknown XSLT element '%s'.\n", node->name); | |
4355 cctxt->style->errors++; | |
4356 return(1); | |
4357 } | |
4358 /* | |
4359 * Forwards-compatible mode. | |
4360 * ------------------------ | |
4361 * | |
4362 * Parse/compile xsl:fallback elements. | |
4363 * | |
4364 * QUESTION: Do we have to raise an error if there's no xsl:fallback? | |
4365 * ANSWER: No, since in the stylesheet the fallback behaviour might | |
4366 * also be provided by using the XSLT function "element-available". | |
4367 */ | |
4368 if (cctxt->unknownItem == NULL) { | |
4369 /* | |
4370 * Create a singleton for all unknown XSLT instructions. | |
4371 */ | |
4372 cctxt->unknownItem = xsltForwardsCompatUnkownItemCreate(cctxt); | |
4373 if (cctxt->unknownItem == NULL) { | |
4374 node->psvi = NULL; | |
4375 return(-1); | |
4376 } | |
4377 } | |
4378 node->psvi = cctxt->unknownItem; | |
4379 if (node->children == NULL) | |
4380 return(0); | |
4381 else { | |
4382 xmlNodePtr child = node->children; | |
4383 | |
4384 xsltCompilerNodePush(cctxt, node); | |
4385 /* | |
4386 * Update the in-scope namespaces if needed. | |
4387 */ | |
4388 if (node->nsDef != NULL) | |
4389 cctxt->inode->inScopeNs = | |
4390 xsltCompilerBuildInScopeNsList(cctxt, node); | |
4391 /* | |
4392 * Parse all xsl:fallback children. | |
4393 */ | |
4394 do { | |
4395 if ((child->type == XML_ELEMENT_NODE) && | |
4396 IS_XSLT_ELEM_FAST(child) && | |
4397 IS_XSLT_NAME(child, "fallback")) | |
4398 { | |
4399 cctxt->inode->curChildType = XSLT_FUNC_FALLBACK; | |
4400 xsltParseAnyXSLTElem(cctxt, child); | |
4401 } | |
4402 child = child->next; | |
4403 } while (child != NULL); | |
4404 | |
4405 xsltCompilerNodePop(cctxt, node); | |
4406 } | |
4407 return(0); | |
4408 } | |
4409 | |
4410 /** | |
4411 * xsltParseSequenceConstructor: | |
4412 * | |
4413 * @cctxt: the compilation context | |
4414 * @cur: the start-node of the content to be parsed | |
4415 * | |
4416 * Parses a "template" content (or "sequence constructor" in XSLT 2.0 terms). | |
4417 * This will additionally remove xsl:text elements from the tree. | |
4418 */ | |
4419 void | |
4420 xsltParseSequenceConstructor(xsltCompilerCtxtPtr cctxt, xmlNodePtr cur) | |
4421 { | |
4422 xsltStyleType type; | |
4423 xmlNodePtr deleteNode = NULL; | |
4424 | |
4425 if (cctxt == NULL) { | |
4426 xmlGenericError(xmlGenericErrorContext, | |
4427 "xsltParseSequenceConstructor: Bad arguments\n"); | |
4428 cctxt->style->errors++; | |
4429 return; | |
4430 } | |
4431 /* | |
4432 * Detection of handled content of extension instructions. | |
4433 */ | |
4434 if (cctxt->inode->category == XSLT_ELEMENT_CATEGORY_EXTENSION) { | |
4435 cctxt->inode->extContentHandled = 1; | |
4436 } | |
4437 if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) | |
4438 return; | |
4439 /* | |
4440 * This is the content reffered to as a "template". | |
4441 * E.g. an xsl:element has such content model: | |
4442 * <xsl:element | |
4443 * name = { qname } | |
4444 * namespace = { uri-reference } | |
4445 * use-attribute-sets = qnames> | |
4446 * <!-- Content: template --> | |
4447 * | |
4448 * NOTE that in XSLT-2 the term "template" was abandoned due to | |
4449 * confusion with xsl:template and the term "sequence constructor" | |
4450 * was introduced instead. | |
4451 * | |
4452 * The following XSLT-instructions are allowed to appear: | |
4453 * xsl:apply-templates, xsl:call-template, xsl:apply-imports, | |
4454 * xsl:for-each, xsl:value-of, xsl:copy-of, xsl:number, | |
4455 * xsl:choose, xsl:if, xsl:text, xsl:copy, xsl:variable, | |
4456 * xsl:message, xsl:fallback, | |
4457 * xsl:processing-instruction, xsl:comment, xsl:element | |
4458 * xsl:attribute. | |
4459 * Additional allowed content: | |
4460 * 1) extension instructions | |
4461 * 2) literal result elements | |
4462 * 3) PCDATA | |
4463 * | |
4464 * NOTE that this content model does *not* allow xsl:param. | |
4465 */ | |
4466 while (cur != NULL) { | |
4467 if (deleteNode != NULL) { | |
4468 #ifdef WITH_XSLT_DEBUG_BLANKS | |
4469 xsltGenericDebug(xsltGenericDebugContext, | |
4470 "xsltParseSequenceConstructor: removing xsl:text element\n"); | |
4471 #endif | |
4472 xmlUnlinkNode(deleteNode); | |
4473 xmlFreeNode(deleteNode); | |
4474 deleteNode = NULL; | |
4475 } | |
4476 if (cur->type == XML_ELEMENT_NODE) { | |
4477 | |
4478 if (cur->psvi == xsltXSLTTextMarker) { | |
4479 /* | |
4480 * xsl:text elements | |
4481 * -------------------------------------------------------- | |
4482 */ | |
4483 xmlNodePtr tmp; | |
4484 | |
4485 cur->psvi = NULL; | |
4486 /* | |
4487 * Mark the xsl:text element for later deletion. | |
4488 */ | |
4489 deleteNode = cur; | |
4490 /* | |
4491 * Validate content. | |
4492 */ | |
4493 tmp = cur->children; | |
4494 if (tmp) { | |
4495 /* | |
4496 * We don't expect more than one text-node in the | |
4497 * content, since we already merged adjacent | |
4498 * text/CDATA-nodes and eliminated PI/comment-nodes. | |
4499 */ | |
4500 if ((tmp->type == XML_TEXT_NODE) || | |
4501 (tmp->next == NULL)) | |
4502 { | |
4503 /* | |
4504 * Leave the contained text-node in the tree. | |
4505 */ | |
4506 xmlUnlinkNode(tmp); | |
4507 xmlAddPrevSibling(cur, tmp); | |
4508 } else { | |
4509 tmp = NULL; | |
4510 xsltTransformError(NULL, cctxt->style, cur, | |
4511 "Element 'xsl:text': Invalid type " | |
4512 "of node found in content.\n"); | |
4513 cctxt->style->errors++; | |
4514 } | |
4515 } | |
4516 if (cur->properties) { | |
4517 xmlAttrPtr attr; | |
4518 /* | |
4519 * TODO: We need to report errors for | |
4520 * invalid attrs. | |
4521 */ | |
4522 attr = cur->properties; | |
4523 do { | |
4524 if ((attr->ns == NULL) && | |
4525 (attr->name != NULL) && | |
4526 (attr->name[0] == 'd') && | |
4527 xmlStrEqual(attr->name, | |
4528 BAD_CAST "disable-output-escaping")) | |
4529 { | |
4530 /* | |
4531 * Attr "disable-output-escaping". | |
4532 * XSLT-2: This attribute is deprecated. | |
4533 */ | |
4534 if ((attr->children != NULL) && | |
4535 xmlStrEqual(attr->children->content, | |
4536 BAD_CAST "yes")) | |
4537 { | |
4538 /* | |
4539 * Disable output escaping for this | |
4540 * text node. | |
4541 */ | |
4542 if (tmp) | |
4543 tmp->name = xmlStringTextNoenc; | |
4544 } else if ((attr->children == NULL) || | |
4545 (attr->children->content == NULL) || | |
4546 (!xmlStrEqual(attr->children->content, | |
4547 BAD_CAST "no"))) | |
4548 { | |
4549 xsltTransformError(NULL, cctxt->style, | |
4550 cur, | |
4551 "Attribute 'disable-output-escaping': " | |
4552 "Invalid value. Expected is " | |
4553 "'yes' or 'no'.\n"); | |
4554 cctxt->style->errors++; | |
4555 } | |
4556 break; | |
4557 } | |
4558 attr = attr->next; | |
4559 } while (attr != NULL); | |
4560 } | |
4561 } else if (IS_XSLT_ELEM_FAST(cur)) { | |
4562 /* | |
4563 * TODO: Using the XSLT-marker is still not stable yet. | |
4564 */ | |
4565 /* if (cur->psvi == xsltXSLTElemMarker) { */ | |
4566 /* | |
4567 * XSLT instructions | |
4568 * -------------------------------------------------------- | |
4569 */ | |
4570 cur->psvi = NULL; | |
4571 type = xsltGetXSLTElementTypeByNode(cctxt, cur); | |
4572 switch (type) { | |
4573 case XSLT_FUNC_APPLYIMPORTS: | |
4574 case XSLT_FUNC_APPLYTEMPLATES: | |
4575 case XSLT_FUNC_ATTRIBUTE: | |
4576 case XSLT_FUNC_CALLTEMPLATE: | |
4577 case XSLT_FUNC_CHOOSE: | |
4578 case XSLT_FUNC_COMMENT: | |
4579 case XSLT_FUNC_COPY: | |
4580 case XSLT_FUNC_COPYOF: | |
4581 case XSLT_FUNC_DOCUMENT: /* Extra one */ | |
4582 case XSLT_FUNC_ELEMENT: | |
4583 case XSLT_FUNC_FALLBACK: | |
4584 case XSLT_FUNC_FOREACH: | |
4585 case XSLT_FUNC_IF: | |
4586 case XSLT_FUNC_MESSAGE: | |
4587 case XSLT_FUNC_NUMBER: | |
4588 case XSLT_FUNC_PI: | |
4589 case XSLT_FUNC_TEXT: | |
4590 case XSLT_FUNC_VALUEOF: | |
4591 case XSLT_FUNC_VARIABLE: | |
4592 /* | |
4593 * Parse the XSLT element. | |
4594 */ | |
4595 cctxt->inode->curChildType = type; | |
4596 xsltParseAnyXSLTElem(cctxt, cur); | |
4597 break; | |
4598 default: | |
4599 xsltParseUnknownXSLTElem(cctxt, cur); | |
4600 cur = cur->next; | |
4601 continue; | |
4602 } | |
4603 } else { | |
4604 /* | |
4605 * Non-XSLT elements | |
4606 * ----------------- | |
4607 */ | |
4608 xsltCompilerNodePush(cctxt, cur); | |
4609 /* | |
4610 * Update the in-scope namespaces if needed. | |
4611 */ | |
4612 if (cur->nsDef != NULL) | |
4613 cctxt->inode->inScopeNs = | |
4614 xsltCompilerBuildInScopeNsList(cctxt, cur); | |
4615 /* | |
4616 * The current element is either a literal result element | |
4617 * or an extension instruction. | |
4618 * | |
4619 * Process attr "xsl:extension-element-prefixes". | |
4620 * FUTURE TODO: IIRC in XSLT 2.0 this attribute must be | |
4621 * processed by the implementor of the extension function; | |
4622 * i.e., it won't be handled by the XSLT processor. | |
4623 */ | |
4624 /* SPEC 1.0: | |
4625 * "exclude-result-prefixes" is only allowed on literal | |
4626 * result elements and "xsl:exclude-result-prefixes" | |
4627 * on xsl:stylesheet/xsl:transform. | |
4628 * SPEC 2.0: | |
4629 * "There are a number of standard attributes | |
4630 * that may appear on any XSLT element: specifically | |
4631 * version, exclude-result-prefixes, | |
4632 * extension-element-prefixes, xpath-default-namespace, | |
4633 * default-collation, and use-when." | |
4634 * | |
4635 * SPEC 2.0: | |
4636 * For literal result elements: | |
4637 * "xsl:version, xsl:exclude-result-prefixes, | |
4638 * xsl:extension-element-prefixes, | |
4639 * xsl:xpath-default-namespace, | |
4640 * xsl:default-collation, or xsl:use-when." | |
4641 */ | |
4642 if (cur->properties) | |
4643 cctxt->inode->extElemNs = | |
4644 xsltParseExtElemPrefixes(cctxt, | |
4645 cur, cctxt->inode->extElemNs, | |
4646 XSLT_ELEMENT_CATEGORY_LRE); | |
4647 /* | |
4648 * Eval if we have an extension instruction here. | |
4649 */ | |
4650 if ((cur->ns != NULL) && | |
4651 (cctxt->inode->extElemNs != NULL) && | |
4652 (xsltCheckExtPrefix(cctxt->style, cur->ns->href) == 1)) | |
4653 { | |
4654 /* | |
4655 * Extension instructions | |
4656 * ---------------------------------------------------- | |
4657 * Mark the node information. | |
4658 */ | |
4659 cctxt->inode->category = XSLT_ELEMENT_CATEGORY_EXTENSION; | |
4660 cctxt->inode->extContentHandled = 0; | |
4661 if (cur->psvi != NULL) { | |
4662 cur->psvi = NULL; | |
4663 /* | |
4664 * TODO: Temporary sanity check. | |
4665 */ | |
4666 xsltTransformError(NULL, cctxt->style, cur, | |
4667 "Internal error in xsltParseSequenceConstructor(): " | |
4668 "Occupied PSVI field.\n"); | |
4669 cctxt->style->errors++; | |
4670 cur = cur->next; | |
4671 continue; | |
4672 } | |
4673 cur->psvi = (void *) | |
4674 xsltPreComputeExtModuleElement(cctxt->style, cur); | |
4675 | |
4676 if (cur->psvi == NULL) { | |
4677 /* | |
4678 * OLD COMMENT: "Unknown element, maybe registered | |
4679 * at the context level. Mark it for later | |
4680 * recognition." | |
4681 * QUESTION: What does the xsltExtMarker mean? | |
4682 * ANSWER: It is used in | |
4683 * xsltApplySequenceConstructor() at | |
4684 * transformation-time to look out for extension | |
4685 * registered in the transformation context. | |
4686 */ | |
4687 cur->psvi = (void *) xsltExtMarker; | |
4688 } | |
4689 /* | |
4690 * BIG NOTE: Now the ugly part. In previous versions | |
4691 * of Libxslt (until 1.1.16), all the content of an | |
4692 * extension instruction was processed and compiled without | |
4693 * the need of the extension-author to explicitely call | |
4694 * such a processing;.We now need to mimic this old | |
4695 * behaviour in order to avoid breaking old code | |
4696 * on the extension-author's side. | |
4697 * The mechanism: | |
4698 * 1) If the author does *not* set the | |
4699 * compile-time-flag @extContentHandled, then we'll | |
4700 * parse the content assuming that it's a "template" | |
4701 * (or "sequence constructor in XSLT 2.0 terms). | |
4702 * NOTE: If the extension is registered at | |
4703 * transformation-time only, then there's no way of | |
4704 * knowing that content shall be valid, and we'll | |
4705 * process the content the same way. | |
4706 * 2) If the author *does* set the flag, then we'll assume | |
4707 * that the author has handled the parsing him/herself | |
4708 * (e.g. called xsltParseSequenceConstructor(), etc. | |
4709 * explicitely in his/her code). | |
4710 */ | |
4711 if ((cur->children != NULL) && | |
4712 (cctxt->inode->extContentHandled == 0)) | |
4713 { | |
4714 /* | |
4715 * Default parsing of the content using the | |
4716 * sequence-constructor model. | |
4717 */ | |
4718 xsltParseSequenceConstructor(cctxt, cur->children); | |
4719 } | |
4720 } else { | |
4721 /* | |
4722 * Literal result element | |
4723 * ---------------------------------------------------- | |
4724 * Allowed XSLT attributes: | |
4725 * xsl:extension-element-prefixes CDATA #IMPLIED | |
4726 * xsl:exclude-result-prefixes CDATA #IMPLIED | |
4727 * TODO: xsl:use-attribute-sets %qnames; #IMPLIED | |
4728 * xsl:version NMTOKEN #IMPLIED | |
4729 */ | |
4730 cur->psvi = NULL; | |
4731 cctxt->inode->category = XSLT_ELEMENT_CATEGORY_LRE; | |
4732 if (cur->properties != NULL) { | |
4733 xmlAttrPtr attr = cur->properties; | |
4734 /* | |
4735 * Attribute "xsl:exclude-result-prefixes". | |
4736 */ | |
4737 cctxt->inode->exclResultNs = | |
4738 xsltParseExclResultPrefixes(cctxt, cur, | |
4739 cctxt->inode->exclResultNs, | |
4740 XSLT_ELEMENT_CATEGORY_LRE); | |
4741 /* | |
4742 * Attribute "xsl:version". | |
4743 */ | |
4744 xsltParseAttrXSLTVersion(cctxt, cur, | |
4745 XSLT_ELEMENT_CATEGORY_LRE); | |
4746 /* | |
4747 * Report invalid XSLT attributes. | |
4748 * For XSLT 1.0 only xsl:use-attribute-sets is allowed | |
4749 * next to xsl:version, xsl:exclude-result-prefixes and | |
4750 * xsl:extension-element-prefixes. | |
4751 * | |
4752 * Mark all XSLT attributes, in order to skip such | |
4753 * attributes when instantiating the LRE. | |
4754 */ | |
4755 do { | |
4756 if ((attr->psvi != xsltXSLTAttrMarker) && | |
4757 IS_XSLT_ATTR_FAST(attr)) | |
4758 { | |
4759 if (! xmlStrEqual(attr->name, | |
4760 BAD_CAST "use-attribute-sets")) | |
4761 { | |
4762 xsltTransformError(NULL, cctxt->style, | |
4763 cur, | |
4764 "Unknown XSLT attribute '%s'.\n", | |
4765 attr->name); | |
4766 cctxt->style->errors++; | |
4767 } else { | |
4768 /* | |
4769 * XSLT attr marker. | |
4770 */ | |
4771 attr->psvi = (void *) xsltXSLTAttrMarker; | |
4772 } | |
4773 } | |
4774 attr = attr->next; | |
4775 } while (attr != NULL); | |
4776 } | |
4777 /* | |
4778 * Create/reuse info for the literal result element. | |
4779 */ | |
4780 if (cctxt->inode->nsChanged) | |
4781 xsltLREInfoCreate(cctxt, cur, 1); | |
4782 cur->psvi = cctxt->inode->litResElemInfo; | |
4783 /* | |
4784 * Apply ns-aliasing on the element and on its attributes. | |
4785 */ | |
4786 if (cctxt->hasNsAliases) | |
4787 xsltLREBuildEffectiveNs(cctxt, cur); | |
4788 /* | |
4789 * Compile attribute value templates (AVT). | |
4790 */ | |
4791 if (cur->properties) { | |
4792 xmlAttrPtr attr = cur->properties; | |
4793 | |
4794 while (attr != NULL) { | |
4795 xsltCompileAttr(cctxt->style, attr); | |
4796 attr = attr->next; | |
4797 } | |
4798 } | |
4799 /* | |
4800 * Parse the content, which is defined to be a "template" | |
4801 * (or "sequence constructor" in XSLT 2.0 terms). | |
4802 */ | |
4803 if (cur->children != NULL) { | |
4804 xsltParseSequenceConstructor(cctxt, cur->children); | |
4805 } | |
4806 } | |
4807 /* | |
4808 * Leave the non-XSLT element. | |
4809 */ | |
4810 xsltCompilerNodePop(cctxt, cur); | |
4811 } | |
4812 } | |
4813 cur = cur->next; | |
4814 } | |
4815 if (deleteNode != NULL) { | |
4816 #ifdef WITH_XSLT_DEBUG_BLANKS | |
4817 xsltGenericDebug(xsltGenericDebugContext, | |
4818 "xsltParseSequenceConstructor: removing xsl:text element\n"); | |
4819 #endif | |
4820 xmlUnlinkNode(deleteNode); | |
4821 xmlFreeNode(deleteNode); | |
4822 deleteNode = NULL; | |
4823 } | |
4824 } | |
4825 | |
4826 /** | |
4827 * xsltParseTemplateContent: | |
4828 * @style: the XSLT stylesheet | |
4829 * @templ: the node containing the content to be parsed | |
4830 * | |
4831 * Parses and compiles the content-model of an xsl:template element. | |
4832 * Note that this is *not* the "template" content model (or "sequence | |
4833 * constructor" in XSLT 2.0); it it allows addional xsl:param | |
4834 * elements as immediate children of @templ. | |
4835 * | |
4836 * Called by: | |
4837 * exsltFuncFunctionComp() (EXSLT, functions.c) | |
4838 * So this is intended to be called from extension functions. | |
4839 */ | |
4840 void | |
4841 xsltParseTemplateContent(xsltStylesheetPtr style, xmlNodePtr templ) { | |
4842 if ((style == NULL) || (templ == NULL) || | |
4843 (templ->type == XML_NAMESPACE_DECL)) | |
4844 return; | |
4845 | |
4846 /* | |
4847 * Detection of handled content of extension instructions. | |
4848 */ | |
4849 if (XSLT_CCTXT(style)->inode->category == XSLT_ELEMENT_CATEGORY_EXTENSION) { | |
4850 XSLT_CCTXT(style)->inode->extContentHandled = 1; | |
4851 } | |
4852 | |
4853 if (templ->children != NULL) { | |
4854 xmlNodePtr child = templ->children; | |
4855 /* | |
4856 * Process xsl:param elements, which can only occur as the | |
4857 * immediate children of xsl:template (well, and of any | |
4858 * user-defined extension instruction if needed). | |
4859 */ | |
4860 do { | |
4861 if ((child->type == XML_ELEMENT_NODE) && | |
4862 IS_XSLT_ELEM_FAST(child) && | |
4863 IS_XSLT_NAME(child, "param")) | |
4864 { | |
4865 XSLT_CCTXT(style)->inode->curChildType = XSLT_FUNC_PARAM; | |
4866 xsltParseAnyXSLTElem(XSLT_CCTXT(style), child); | |
4867 } else | |
4868 break; | |
4869 child = child->next; | |
4870 } while (child != NULL); | |
4871 /* | |
4872 * Parse the content and register the pattern. | |
4873 */ | |
4874 xsltParseSequenceConstructor(XSLT_CCTXT(style), child); | |
4875 } | |
4876 } | |
4877 | |
4878 #else /* XSLT_REFACTORED */ | |
4879 | |
4880 /** | |
4881 * xsltParseTemplateContent: | |
4882 * @style: the XSLT stylesheet | |
4883 * @templ: the container node (can be a document for literal results) | |
4884 * | |
4885 * parse a template content-model | |
4886 * Clean-up the template content from unwanted ignorable blank nodes | |
4887 * and process xslt:text | |
4888 */ | |
4889 void | |
4890 xsltParseTemplateContent(xsltStylesheetPtr style, xmlNodePtr templ) { | |
4891 xmlNodePtr cur, delete; | |
4892 | |
4893 if ((style == NULL) || (templ == NULL) || | |
4894 (templ->type == XML_NAMESPACE_DECL)) return; | |
4895 | |
4896 /* | |
4897 * This content comes from the stylesheet | |
4898 * For stylesheets, the set of whitespace-preserving | |
4899 * element names consists of just xsl:text. | |
4900 */ | |
4901 cur = templ->children; | |
4902 delete = NULL; | |
4903 while (cur != NULL) { | |
4904 if (delete != NULL) { | |
4905 #ifdef WITH_XSLT_DEBUG_BLANKS | |
4906 xsltGenericDebug(xsltGenericDebugContext, | |
4907 "xsltParseTemplateContent: removing text\n"); | |
4908 #endif | |
4909 xmlUnlinkNode(delete); | |
4910 xmlFreeNode(delete); | |
4911 delete = NULL; | |
4912 } | |
4913 if (IS_XSLT_ELEM(cur)) { | |
4914 xsltStylePreCompute(style, cur); | |
4915 | |
4916 if (IS_XSLT_NAME(cur, "text")) { | |
4917 /* | |
4918 * TODO: Processing of xsl:text should be moved to | |
4919 * xsltPreprocessStylesheet(), since otherwise this | |
4920 * will be performed for every multiply included | |
4921 * stylesheet; i.e. this here is not skipped with | |
4922 * the use of the style->nopreproc flag. | |
4923 */ | |
4924 if (cur->children != NULL) { | |
4925 xmlChar *prop; | |
4926 xmlNodePtr text = cur->children, next; | |
4927 int noesc = 0; | |
4928 | |
4929 prop = xmlGetNsProp(cur, | |
4930 (const xmlChar *)"disable-output-escaping", | |
4931 NULL); | |
4932 if (prop != NULL) { | |
4933 #ifdef WITH_XSLT_DEBUG_PARSING | |
4934 xsltGenericDebug(xsltGenericDebugContext, | |
4935 "Disable escaping: %s\n", text->content); | |
4936 #endif | |
4937 if (xmlStrEqual(prop, (const xmlChar *)"yes")) { | |
4938 noesc = 1; | |
4939 } else if (!xmlStrEqual(prop, | |
4940 (const xmlChar *)"no")){ | |
4941 xsltTransformError(NULL, style, cur, | |
4942 "xsl:text: disable-output-escaping allows only yes or no\n"); | |
4943 style->warnings++; | |
4944 | |
4945 } | |
4946 xmlFree(prop); | |
4947 } | |
4948 | |
4949 while (text != NULL) { | |
4950 if (text->type == XML_COMMENT_NODE) { | |
4951 text = text->next; | |
4952 continue; | |
4953 } | |
4954 if ((text->type != XML_TEXT_NODE) && | |
4955 (text->type != XML_CDATA_SECTION_NODE)) { | |
4956 xsltTransformError(NULL, style, cur, | |
4957 "xsltParseTemplateContent: xslt:text content problem\n"); | |
4958 style->errors++; | |
4959 break; | |
4960 } | |
4961 if ((noesc) && (text->type != XML_CDATA_SECTION_NODE)) | |
4962 text->name = xmlStringTextNoenc; | |
4963 text = text->next; | |
4964 } | |
4965 | |
4966 /* | |
4967 * replace xsl:text by the list of childs | |
4968 */ | |
4969 if (text == NULL) { | |
4970 text = cur->children; | |
4971 while (text != NULL) { | |
4972 if ((style->internalized) && | |
4973 (text->content != NULL) && | |
4974 (!xmlDictOwns(style->dict, text->content))) { | |
4975 | |
4976 /* | |
4977 * internalize the text string | |
4978 */ | |
4979 if (text->doc->dict != NULL) { | |
4980 const xmlChar *tmp; | |
4981 | |
4982 tmp = xmlDictLookup(text->doc->dict, | |
4983 text->content, -1); | |
4984 if (tmp != text->content) { | |
4985 xmlNodeSetContent(text, NULL); | |
4986 text->content = (xmlChar *) tmp; | |
4987 } | |
4988 } | |
4989 } | |
4990 | |
4991 next = text->next; | |
4992 xmlUnlinkNode(text); | |
4993 xmlAddPrevSibling(cur, text); | |
4994 text = next; | |
4995 } | |
4996 } | |
4997 } | |
4998 delete = cur; | |
4999 goto skip_children; | |
5000 } | |
5001 } | |
5002 else if ((cur->ns != NULL) && (style->nsDefs != NULL) && | |
5003 (xsltCheckExtPrefix(style, cur->ns->prefix))) | |
5004 { | |
5005 /* | |
5006 * okay this is an extension element compile it too | |
5007 */ | |
5008 xsltStylePreCompute(style, cur); | |
5009 } | |
5010 else if (cur->type == XML_ELEMENT_NODE) | |
5011 { | |
5012 /* | |
5013 * This is an element which will be output as part of the | |
5014 * template exectution, precompile AVT if found. | |
5015 */ | |
5016 if ((cur->ns == NULL) && (style->defaultAlias != NULL)) { | |
5017 cur->ns = xmlSearchNsByHref(cur->doc, cur, | |
5018 style->defaultAlias); | |
5019 } | |
5020 if (cur->properties != NULL) { | |
5021 xmlAttrPtr attr = cur->properties; | |
5022 | |
5023 while (attr != NULL) { | |
5024 xsltCompileAttr(style, attr); | |
5025 attr = attr->next; | |
5026 } | |
5027 } | |
5028 } | |
5029 /* | |
5030 * Skip to next node | |
5031 */ | |
5032 if (cur->children != NULL) { | |
5033 if (cur->children->type != XML_ENTITY_DECL) { | |
5034 cur = cur->children; | |
5035 continue; | |
5036 } | |
5037 } | |
5038 skip_children: | |
5039 if (cur->next != NULL) { | |
5040 cur = cur->next; | |
5041 continue; | |
5042 } | |
5043 | |
5044 do { | |
5045 cur = cur->parent; | |
5046 if (cur == NULL) | |
5047 break; | |
5048 if (cur == templ) { | |
5049 cur = NULL; | |
5050 break; | |
5051 } | |
5052 if (cur->next != NULL) { | |
5053 cur = cur->next; | |
5054 break; | |
5055 } | |
5056 } while (cur != NULL); | |
5057 } | |
5058 if (delete != NULL) { | |
5059 #ifdef WITH_XSLT_DEBUG_PARSING | |
5060 xsltGenericDebug(xsltGenericDebugContext, | |
5061 "xsltParseTemplateContent: removing text\n"); | |
5062 #endif | |
5063 xmlUnlinkNode(delete); | |
5064 xmlFreeNode(delete); | |
5065 delete = NULL; | |
5066 } | |
5067 | |
5068 /* | |
5069 * Skip the first params | |
5070 */ | |
5071 cur = templ->children; | |
5072 while (cur != NULL) { | |
5073 if ((IS_XSLT_ELEM(cur)) && (!(IS_XSLT_NAME(cur, "param")))) | |
5074 break; | |
5075 cur = cur->next; | |
5076 } | |
5077 | |
5078 /* | |
5079 * Browse the remainder of the template | |
5080 */ | |
5081 while (cur != NULL) { | |
5082 if ((IS_XSLT_ELEM(cur)) && (IS_XSLT_NAME(cur, "param"))) { | |
5083 xmlNodePtr param = cur; | |
5084 | |
5085 xsltTransformError(NULL, style, cur, | |
5086 "xsltParseTemplateContent: ignoring misplaced param element\n"); | |
5087 if (style != NULL) style->warnings++; | |
5088 cur = cur->next; | |
5089 xmlUnlinkNode(param); | |
5090 xmlFreeNode(param); | |
5091 } else | |
5092 break; | |
5093 } | |
5094 } | |
5095 | |
5096 #endif /* else XSLT_REFACTORED */ | |
5097 | |
5098 /** | |
5099 * xsltParseStylesheetKey: | |
5100 * @style: the XSLT stylesheet | |
5101 * @key: the "key" element | |
5102 * | |
5103 * <!-- Category: top-level-element --> | |
5104 * <xsl:key name = qname, match = pattern, use = expression /> | |
5105 * | |
5106 * parse an XSLT stylesheet key definition and register it | |
5107 */ | |
5108 | |
5109 static void | |
5110 xsltParseStylesheetKey(xsltStylesheetPtr style, xmlNodePtr key) { | |
5111 xmlChar *prop = NULL; | |
5112 xmlChar *use = NULL; | |
5113 xmlChar *match = NULL; | |
5114 xmlChar *name = NULL; | |
5115 xmlChar *nameURI = NULL; | |
5116 | |
5117 if ((style == NULL) || (key == NULL) || (key->type != XML_ELEMENT_NODE)) | |
5118 return; | |
5119 | |
5120 /* | |
5121 * Get arguments | |
5122 */ | |
5123 prop = xmlGetNsProp(key, (const xmlChar *)"name", NULL); | |
5124 if (prop != NULL) { | |
5125 const xmlChar *URI; | |
5126 | |
5127 /* | |
5128 * TODO: Don't use xsltGetQNameURI(). | |
5129 */ | |
5130 URI = xsltGetQNameURI(key, &prop); | |
5131 if (prop == NULL) { | |
5132 if (style != NULL) style->errors++; | |
5133 goto error; | |
5134 } else { | |
5135 name = prop; | |
5136 if (URI != NULL) | |
5137 nameURI = xmlStrdup(URI); | |
5138 } | |
5139 #ifdef WITH_XSLT_DEBUG_PARSING | |
5140 xsltGenericDebug(xsltGenericDebugContext, | |
5141 "xsltParseStylesheetKey: name %s\n", name); | |
5142 #endif | |
5143 } else { | |
5144 xsltTransformError(NULL, style, key, | |
5145 "xsl:key : error missing name\n"); | |
5146 if (style != NULL) style->errors++; | |
5147 goto error; | |
5148 } | |
5149 | |
5150 match = xmlGetNsProp(key, (const xmlChar *)"match", NULL); | |
5151 if (match == NULL) { | |
5152 xsltTransformError(NULL, style, key, | |
5153 "xsl:key : error missing match\n"); | |
5154 if (style != NULL) style->errors++; | |
5155 goto error; | |
5156 } | |
5157 | |
5158 use = xmlGetNsProp(key, (const xmlChar *)"use", NULL); | |
5159 if (use == NULL) { | |
5160 xsltTransformError(NULL, style, key, | |
5161 "xsl:key : error missing use\n"); | |
5162 if (style != NULL) style->errors++; | |
5163 goto error; | |
5164 } | |
5165 | |
5166 /* | |
5167 * register the keys | |
5168 */ | |
5169 xsltAddKey(style, name, nameURI, match, use, key); | |
5170 | |
5171 | |
5172 error: | |
5173 if (use != NULL) | |
5174 xmlFree(use); | |
5175 if (match != NULL) | |
5176 xmlFree(match); | |
5177 if (name != NULL) | |
5178 xmlFree(name); | |
5179 if (nameURI != NULL) | |
5180 xmlFree(nameURI); | |
5181 | |
5182 if (key->children != NULL) { | |
5183 xsltParseContentError(style, key->children); | |
5184 } | |
5185 } | |
5186 | |
5187 #ifdef XSLT_REFACTORED | |
5188 /** | |
5189 * xsltParseXSLTTemplate: | |
5190 * @style: the XSLT stylesheet | |
5191 * @template: the "template" element | |
5192 * | |
5193 * parse an XSLT stylesheet template building the associated structures | |
5194 * TODO: Is @style ever expected to be NULL? | |
5195 * | |
5196 * Called from: | |
5197 * xsltParseXSLTStylesheet() | |
5198 * xsltParseStylesheetTop() | |
5199 */ | |
5200 | |
5201 static void | |
5202 xsltParseXSLTTemplate(xsltCompilerCtxtPtr cctxt, xmlNodePtr templNode) { | |
5203 xsltTemplatePtr templ; | |
5204 xmlChar *prop; | |
5205 double priority; | |
5206 | |
5207 if ((cctxt == NULL) || (templNode == NULL) || | |
5208 (templNode->type != XML_ELEMENT_NODE)) | |
5209 return; | |
5210 | |
5211 /* | |
5212 * Create and link the structure | |
5213 */ | |
5214 templ = xsltNewTemplate(); | |
5215 if (templ == NULL) | |
5216 return; | |
5217 | |
5218 xsltCompilerNodePush(cctxt, templNode); | |
5219 if (templNode->nsDef != NULL) | |
5220 cctxt->inode->inScopeNs = | |
5221 xsltCompilerBuildInScopeNsList(cctxt, templNode); | |
5222 | |
5223 templ->next = cctxt->style->templates; | |
5224 cctxt->style->templates = templ; | |
5225 templ->style = cctxt->style; | |
5226 | |
5227 /* | |
5228 * Attribute "mode". | |
5229 */ | |
5230 prop = xmlGetNsProp(templNode, (const xmlChar *)"mode", NULL); | |
5231 if (prop != NULL) { | |
5232 const xmlChar *modeURI; | |
5233 | |
5234 /* | |
5235 * TODO: We need a standardized function for extraction | |
5236 * of namespace names and local names from QNames. | |
5237 * Don't use xsltGetQNameURI() as it cannot channe� | |
5238 * reports through the context. | |
5239 */ | |
5240 modeURI = xsltGetQNameURI(templNode, &prop); | |
5241 if (prop == NULL) { | |
5242 cctxt->style->errors++; | |
5243 goto error; | |
5244 } | |
5245 templ->mode = xmlDictLookup(cctxt->style->dict, prop, -1); | |
5246 xmlFree(prop); | |
5247 prop = NULL; | |
5248 if (xmlValidateNCName(templ->mode, 0)) { | |
5249 xsltTransformError(NULL, cctxt->style, templNode, | |
5250 "xsl:template: Attribute 'mode': The local part '%s' " | |
5251 "of the value is not a valid NCName.\n", templ->name); | |
5252 cctxt->style->errors++; | |
5253 goto error; | |
5254 } | |
5255 if (modeURI != NULL) | |
5256 templ->modeURI = xmlDictLookup(cctxt->style->dict, modeURI, -1); | |
5257 #ifdef WITH_XSLT_DEBUG_PARSING | |
5258 xsltGenericDebug(xsltGenericDebugContext, | |
5259 "xsltParseXSLTTemplate: mode %s\n", templ->mode); | |
5260 #endif | |
5261 } | |
5262 /* | |
5263 * Attribute "match". | |
5264 */ | |
5265 prop = xmlGetNsProp(templNode, (const xmlChar *)"match", NULL); | |
5266 if (prop != NULL) { | |
5267 templ->match = prop; | |
5268 prop = NULL; | |
5269 } | |
5270 /* | |
5271 * Attribute "priority". | |
5272 */ | |
5273 prop = xmlGetNsProp(templNode, (const xmlChar *)"priority", NULL); | |
5274 if (prop != NULL) { | |
5275 priority = xmlXPathStringEvalNumber(prop); | |
5276 templ->priority = (float) priority; | |
5277 xmlFree(prop); | |
5278 prop = NULL; | |
5279 } | |
5280 /* | |
5281 * Attribute "name". | |
5282 */ | |
5283 prop = xmlGetNsProp(templNode, (const xmlChar *)"name", NULL); | |
5284 if (prop != NULL) { | |
5285 const xmlChar *nameURI; | |
5286 xsltTemplatePtr curTempl; | |
5287 | |
5288 /* | |
5289 * TODO: Don't use xsltGetQNameURI(). | |
5290 */ | |
5291 nameURI = xsltGetQNameURI(templNode, &prop); | |
5292 if (prop == NULL) { | |
5293 cctxt->style->errors++; | |
5294 goto error; | |
5295 } | |
5296 templ->name = xmlDictLookup(cctxt->style->dict, prop, -1); | |
5297 xmlFree(prop); | |
5298 prop = NULL; | |
5299 if (xmlValidateNCName(templ->name, 0)) { | |
5300 xsltTransformError(NULL, cctxt->style, templNode, | |
5301 "xsl:template: Attribute 'name': The local part '%s' of " | |
5302 "the value is not a valid NCName.\n", templ->name); | |
5303 cctxt->style->errors++; | |
5304 goto error; | |
5305 } | |
5306 if (nameURI != NULL) | |
5307 templ->nameURI = xmlDictLookup(cctxt->style->dict, nameURI, -1); | |
5308 curTempl = templ->next; | |
5309 while (curTempl != NULL) { | |
5310 if ((nameURI != NULL && xmlStrEqual(curTempl->name, templ->name) && | |
5311 xmlStrEqual(curTempl->nameURI, nameURI) ) || | |
5312 (nameURI == NULL && curTempl->nameURI == NULL && | |
5313 xmlStrEqual(curTempl->name, templ->name))) | |
5314 { | |
5315 xsltTransformError(NULL, cctxt->style, templNode, | |
5316 "xsl:template: error duplicate name '%s'\n", templ->name); | |
5317 cctxt->style->errors++; | |
5318 goto error; | |
5319 } | |
5320 curTempl = curTempl->next; | |
5321 } | |
5322 } | |
5323 if (templNode->children != NULL) { | |
5324 xsltParseTemplateContent(cctxt->style, templNode); | |
5325 /* | |
5326 * MAYBE TODO: Custom behaviour: In order to stay compatible with | |
5327 * Xalan and MSXML(.NET), we could allow whitespace | |
5328 * to appear before an xml:param element; this whitespace | |
5329 * will additionally become part of the "template". | |
5330 * NOTE that this is totally deviates from the spec, but | |
5331 * is the de facto behaviour of Xalan and MSXML(.NET). | |
5332 * Personally I wouldn't allow this, since if we have: | |
5333 * <xsl:template ...xml:space="preserve"> | |
5334 * <xsl:param name="foo"/> | |
5335 * <xsl:param name="bar"/> | |
5336 * <xsl:param name="zoo"/> | |
5337 * ... the whitespace between every xsl:param would be | |
5338 * added to the result tree. | |
5339 */ | |
5340 } | |
5341 | |
5342 templ->elem = templNode; | |
5343 templ->content = templNode->children; | |
5344 xsltAddTemplate(cctxt->style, templ, templ->mode, templ->modeURI); | |
5345 | |
5346 error: | |
5347 xsltCompilerNodePop(cctxt, templNode); | |
5348 return; | |
5349 } | |
5350 | |
5351 #else /* XSLT_REFACTORED */ | |
5352 | |
5353 /** | |
5354 * xsltParseStylesheetTemplate: | |
5355 * @style: the XSLT stylesheet | |
5356 * @template: the "template" element | |
5357 * | |
5358 * parse an XSLT stylesheet template building the associated structures | |
5359 */ | |
5360 | |
5361 static void | |
5362 xsltParseStylesheetTemplate(xsltStylesheetPtr style, xmlNodePtr template) { | |
5363 xsltTemplatePtr ret; | |
5364 xmlChar *prop; | |
5365 xmlChar *mode = NULL; | |
5366 xmlChar *modeURI = NULL; | |
5367 double priority; | |
5368 | |
5369 if ((style == NULL) || (template == NULL) || | |
5370 (template->type != XML_ELEMENT_NODE)) | |
5371 return; | |
5372 | |
5373 /* | |
5374 * Create and link the structure | |
5375 */ | |
5376 ret = xsltNewTemplate(); | |
5377 if (ret == NULL) | |
5378 return; | |
5379 ret->next = style->templates; | |
5380 style->templates = ret; | |
5381 ret->style = style; | |
5382 | |
5383 /* | |
5384 * Get inherited namespaces | |
5385 */ | |
5386 /* | |
5387 * TODO: Apply the optimized in-scope-namespace mechanism | |
5388 * as for the other XSLT instructions. | |
5389 */ | |
5390 xsltGetInheritedNsList(style, ret, template); | |
5391 | |
5392 /* | |
5393 * Get arguments | |
5394 */ | |
5395 prop = xmlGetNsProp(template, (const xmlChar *)"mode", NULL); | |
5396 if (prop != NULL) { | |
5397 const xmlChar *URI; | |
5398 | |
5399 /* | |
5400 * TODO: Don't use xsltGetQNameURI(). | |
5401 */ | |
5402 URI = xsltGetQNameURI(template, &prop); | |
5403 if (prop == NULL) { | |
5404 if (style != NULL) style->errors++; | |
5405 goto error; | |
5406 } else { | |
5407 mode = prop; | |
5408 if (URI != NULL) | |
5409 modeURI = xmlStrdup(URI); | |
5410 } | |
5411 ret->mode = xmlDictLookup(style->dict, mode, -1); | |
5412 ret->modeURI = xmlDictLookup(style->dict, modeURI, -1); | |
5413 #ifdef WITH_XSLT_DEBUG_PARSING | |
5414 xsltGenericDebug(xsltGenericDebugContext, | |
5415 "xsltParseStylesheetTemplate: mode %s\n", mode); | |
5416 #endif | |
5417 if (mode != NULL) xmlFree(mode); | |
5418 if (modeURI != NULL) xmlFree(modeURI); | |
5419 } | |
5420 prop = xmlGetNsProp(template, (const xmlChar *)"match", NULL); | |
5421 if (prop != NULL) { | |
5422 if (ret->match != NULL) xmlFree(ret->match); | |
5423 ret->match = prop; | |
5424 } | |
5425 | |
5426 prop = xmlGetNsProp(template, (const xmlChar *)"priority", NULL); | |
5427 if (prop != NULL) { | |
5428 priority = xmlXPathStringEvalNumber(prop); | |
5429 ret->priority = (float) priority; | |
5430 xmlFree(prop); | |
5431 } | |
5432 | |
5433 prop = xmlGetNsProp(template, (const xmlChar *)"name", NULL); | |
5434 if (prop != NULL) { | |
5435 const xmlChar *URI; | |
5436 | |
5437 /* | |
5438 * TODO: Don't use xsltGetQNameURI(). | |
5439 */ | |
5440 URI = xsltGetQNameURI(template, &prop); | |
5441 if (prop == NULL) { | |
5442 if (style != NULL) style->errors++; | |
5443 goto error; | |
5444 } else { | |
5445 if (xmlValidateNCName(prop,0)) { | |
5446 xsltTransformError(NULL, style, template, | |
5447 "xsl:template : error invalid name '%s'\n", prop); | |
5448 if (style != NULL) style->errors++; | |
5449 goto error; | |
5450 } | |
5451 ret->name = xmlDictLookup(style->dict, BAD_CAST prop, -1); | |
5452 xmlFree(prop); | |
5453 prop = NULL; | |
5454 if (URI != NULL) | |
5455 ret->nameURI = xmlDictLookup(style->dict, BAD_CAST URI, -1); | |
5456 else | |
5457 ret->nameURI = NULL; | |
5458 } | |
5459 } | |
5460 | |
5461 /* | |
5462 * parse the content and register the pattern | |
5463 */ | |
5464 xsltParseTemplateContent(style, template); | |
5465 ret->elem = template; | |
5466 ret->content = template->children; | |
5467 xsltAddTemplate(style, ret, ret->mode, ret->modeURI); | |
5468 | |
5469 error: | |
5470 return; | |
5471 } | |
5472 | |
5473 #endif /* else XSLT_REFACTORED */ | |
5474 | |
5475 #ifdef XSLT_REFACTORED | |
5476 | |
5477 /** | |
5478 * xsltIncludeComp: | |
5479 * @cctxt: the compilation contenxt | |
5480 * @node: the xsl:include node | |
5481 * | |
5482 * Process the xslt include node on the source node | |
5483 */ | |
5484 static xsltStyleItemIncludePtr | |
5485 xsltCompileXSLTIncludeElem(xsltCompilerCtxtPtr cctxt, xmlNodePtr node) { | |
5486 xsltStyleItemIncludePtr item; | |
5487 | |
5488 if ((cctxt == NULL) || (node == NULL) || (node->type != XML_ELEMENT_NODE)) | |
5489 return(NULL); | |
5490 | |
5491 node->psvi = NULL; | |
5492 item = (xsltStyleItemIncludePtr) xmlMalloc(sizeof(xsltStyleItemInclude)); | |
5493 if (item == NULL) { | |
5494 xsltTransformError(NULL, cctxt->style, node, | |
5495 "xsltIncludeComp : malloc failed\n"); | |
5496 cctxt->style->errors++; | |
5497 return(NULL); | |
5498 } | |
5499 memset(item, 0, sizeof(xsltStyleItemInclude)); | |
5500 | |
5501 node->psvi = item; | |
5502 item->inst = node; | |
5503 item->type = XSLT_FUNC_INCLUDE; | |
5504 | |
5505 item->next = cctxt->style->preComps; | |
5506 cctxt->style->preComps = (xsltElemPreCompPtr) item; | |
5507 | |
5508 return(item); | |
5509 } | |
5510 | |
5511 /** | |
5512 * xsltParseFindTopLevelElem: | |
5513 */ | |
5514 static int | |
5515 xsltParseFindTopLevelElem(xsltCompilerCtxtPtr cctxt, | |
5516 xmlNodePtr cur, | |
5517 const xmlChar *name, | |
5518 const xmlChar *namespaceURI, | |
5519 int breakOnOtherElem, | |
5520 xmlNodePtr *resultNode) | |
5521 { | |
5522 if (name == NULL) | |
5523 return(-1); | |
5524 | |
5525 *resultNode = NULL; | |
5526 while (cur != NULL) { | |
5527 if (cur->type == XML_ELEMENT_NODE) { | |
5528 if ((cur->ns != NULL) && (cur->name != NULL)) { | |
5529 if ((*(cur->name) == *name) && | |
5530 xmlStrEqual(cur->name, name) && | |
5531 xmlStrEqual(cur->ns->href, namespaceURI)) | |
5532 { | |
5533 *resultNode = cur; | |
5534 return(1); | |
5535 } | |
5536 } | |
5537 if (breakOnOtherElem) | |
5538 break; | |
5539 } | |
5540 cur = cur->next; | |
5541 } | |
5542 *resultNode = cur; | |
5543 return(0); | |
5544 } | |
5545 | |
5546 static int | |
5547 xsltParseTopLevelXSLTElem(xsltCompilerCtxtPtr cctxt, | |
5548 xmlNodePtr node, | |
5549 xsltStyleType type) | |
5550 { | |
5551 int ret = 0; | |
5552 | |
5553 /* | |
5554 * TODO: The reason why this function exists: | |
5555 * due to historical reasons some of the | |
5556 * top-level declarations are processed by functions | |
5557 * in other files. Since we need still to set | |
5558 * up the node-info and generate information like | |
5559 * in-scope namespaces, this is a wrapper around | |
5560 * those old parsing functions. | |
5561 */ | |
5562 xsltCompilerNodePush(cctxt, node); | |
5563 if (node->nsDef != NULL) | |
5564 cctxt->inode->inScopeNs = | |
5565 xsltCompilerBuildInScopeNsList(cctxt, node); | |
5566 cctxt->inode->type = type; | |
5567 | |
5568 switch (type) { | |
5569 case XSLT_FUNC_INCLUDE: | |
5570 { | |
5571 int oldIsInclude; | |
5572 | |
5573 if (xsltCompileXSLTIncludeElem(cctxt, node) == NULL) | |
5574 goto exit; | |
5575 /* | |
5576 * Mark this stylesheet tree as being currently included. | |
5577 */ | |
5578 oldIsInclude = cctxt->isInclude; | |
5579 cctxt->isInclude = 1; | |
5580 | |
5581 if (xsltParseStylesheetInclude(cctxt->style, node) != 0) { | |
5582 cctxt->style->errors++; | |
5583 } | |
5584 cctxt->isInclude = oldIsInclude; | |
5585 } | |
5586 break; | |
5587 case XSLT_FUNC_PARAM: | |
5588 xsltStylePreCompute(cctxt->style, node); | |
5589 xsltParseGlobalParam(cctxt->style, node); | |
5590 break; | |
5591 case XSLT_FUNC_VARIABLE: | |
5592 xsltStylePreCompute(cctxt->style, node); | |
5593 xsltParseGlobalVariable(cctxt->style, node); | |
5594 break; | |
5595 case XSLT_FUNC_ATTRSET: | |
5596 xsltParseStylesheetAttributeSet(cctxt->style, node); | |
5597 break; | |
5598 default: | |
5599 xsltTransformError(NULL, cctxt->style, node, | |
5600 "Internal error: (xsltParseTopLevelXSLTElem) " | |
5601 "Cannot handle this top-level declaration.\n"); | |
5602 cctxt->style->errors++; | |
5603 ret = -1; | |
5604 } | |
5605 | |
5606 exit: | |
5607 xsltCompilerNodePop(cctxt, node); | |
5608 | |
5609 return(ret); | |
5610 } | |
5611 | |
5612 #if 0 | |
5613 static int | |
5614 xsltParseRemoveWhitespace(xmlNodePtr node) | |
5615 { | |
5616 if ((node == NULL) || (node->children == NULL)) | |
5617 return(0); | |
5618 else { | |
5619 xmlNodePtr delNode = NULL, child = node->children; | |
5620 | |
5621 do { | |
5622 if (delNode) { | |
5623 xmlUnlinkNode(delNode); | |
5624 xmlFreeNode(delNode); | |
5625 delNode = NULL; | |
5626 } | |
5627 if (((child->type == XML_TEXT_NODE) || | |
5628 (child->type == XML_CDATA_SECTION_NODE)) && | |
5629 (IS_BLANK_NODE(child))) | |
5630 delNode = child; | |
5631 child = child->next; | |
5632 } while (child != NULL); | |
5633 if (delNode) { | |
5634 xmlUnlinkNode(delNode); | |
5635 xmlFreeNode(delNode); | |
5636 delNode = NULL; | |
5637 } | |
5638 } | |
5639 return(0); | |
5640 } | |
5641 #endif | |
5642 | |
5643 static int | |
5644 xsltParseXSLTStylesheetElemCore(xsltCompilerCtxtPtr cctxt, xmlNodePtr node) | |
5645 { | |
5646 #ifdef WITH_XSLT_DEBUG_PARSING | |
5647 int templates = 0; | |
5648 #endif | |
5649 xmlNodePtr cur, start = NULL; | |
5650 xsltStylesheetPtr style; | |
5651 | |
5652 if ((cctxt == NULL) || (node == NULL) || | |
5653 (node->type != XML_ELEMENT_NODE)) | |
5654 return(-1); | |
5655 | |
5656 style = cctxt->style; | |
5657 /* | |
5658 * At this stage all import declarations of all stylesheet modules | |
5659 * with the same stylesheet level have been processed. | |
5660 * Now we can safely parse the rest of the declarations. | |
5661 */ | |
5662 if (IS_XSLT_ELEM_FAST(node) && IS_XSLT_NAME(node, "include")) | |
5663 { | |
5664 xsltDocumentPtr include; | |
5665 /* | |
5666 * URGENT TODO: Make this work with simplified stylesheets! | |
5667 * I.e., when we won't find an xsl:stylesheet element. | |
5668 */ | |
5669 /* | |
5670 * This is as include declaration. | |
5671 */ | |
5672 include = ((xsltStyleItemIncludePtr) node->psvi)->include; | |
5673 if (include == NULL) { | |
5674 /* TODO: raise error? */ | |
5675 return(-1); | |
5676 } | |
5677 /* | |
5678 * TODO: Actually an xsl:include should locate an embedded | |
5679 * stylesheet as well; so the document-element won't always | |
5680 * be the element where the actual stylesheet is rooted at. | |
5681 * But such embedded stylesheets are not supported by Libxslt yet. | |
5682 */ | |
5683 node = xmlDocGetRootElement(include->doc); | |
5684 if (node == NULL) { | |
5685 return(-1); | |
5686 } | |
5687 } | |
5688 | |
5689 if (node->children == NULL) | |
5690 return(0); | |
5691 /* | |
5692 * Push the xsl:stylesheet/xsl:transform element. | |
5693 */ | |
5694 xsltCompilerNodePush(cctxt, node); | |
5695 cctxt->inode->isRoot = 1; | |
5696 cctxt->inode->nsChanged = 0; | |
5697 /* | |
5698 * Start with the naked dummy info for literal result elements. | |
5699 */ | |
5700 cctxt->inode->litResElemInfo = cctxt->inodeList->litResElemInfo; | |
5701 | |
5702 /* | |
5703 * In every case, we need to have | |
5704 * the in-scope namespaces of the element, where the | |
5705 * stylesheet is rooted at, regardless if it's an XSLT | |
5706 * instruction or a literal result instruction (or if | |
5707 * this is an embedded stylesheet). | |
5708 */ | |
5709 cctxt->inode->inScopeNs = | |
5710 xsltCompilerBuildInScopeNsList(cctxt, node); | |
5711 | |
5712 /* | |
5713 * Process attributes of xsl:stylesheet/xsl:transform. | |
5714 * -------------------------------------------------- | |
5715 * Allowed are: | |
5716 * id = id | |
5717 * extension-element-prefixes = tokens | |
5718 * exclude-result-prefixes = tokens | |
5719 * version = number (mandatory) | |
5720 */ | |
5721 if (xsltParseAttrXSLTVersion(cctxt, node, | |
5722 XSLT_ELEMENT_CATEGORY_XSLT) == 0) | |
5723 { | |
5724 /* | |
5725 * Attribute "version". | |
5726 * XSLT 1.0: "An xsl:stylesheet element *must* have a version | |
5727 * attribute, indicating the version of XSLT that the | |
5728 * stylesheet requires". | |
5729 * The root element of a simplified stylesheet must also have | |
5730 * this attribute. | |
5731 */ | |
5732 #ifdef XSLT_REFACTORED_MANDATORY_VERSION | |
5733 if (isXsltElem) | |
5734 xsltTransformError(NULL, cctxt->style, node, | |
5735 "The attribute 'version' is missing.\n"); | |
5736 cctxt->style->errors++; | |
5737 #else | |
5738 /* OLD behaviour. */ | |
5739 xsltTransformError(NULL, cctxt->style, node, | |
5740 "xsl:version is missing: document may not be a stylesheet\n"); | |
5741 cctxt->style->warnings++; | |
5742 #endif | |
5743 } | |
5744 /* | |
5745 * The namespaces declared by the attributes | |
5746 * "extension-element-prefixes" and | |
5747 * "exclude-result-prefixes" are local to *this* | |
5748 * stylesheet tree; i.e., they are *not* visible to | |
5749 * other stylesheet-modules, whether imported or included. | |
5750 * | |
5751 * Attribute "extension-element-prefixes". | |
5752 */ | |
5753 cctxt->inode->extElemNs = | |
5754 xsltParseExtElemPrefixes(cctxt, node, NULL, | |
5755 XSLT_ELEMENT_CATEGORY_XSLT); | |
5756 /* | |
5757 * Attribute "exclude-result-prefixes". | |
5758 */ | |
5759 cctxt->inode->exclResultNs = | |
5760 xsltParseExclResultPrefixes(cctxt, node, NULL, | |
5761 XSLT_ELEMENT_CATEGORY_XSLT); | |
5762 /* | |
5763 * Create/reuse info for the literal result element. | |
5764 */ | |
5765 if (cctxt->inode->nsChanged) | |
5766 xsltLREInfoCreate(cctxt, node, 0); | |
5767 /* | |
5768 * Processed top-level elements: | |
5769 * ---------------------------- | |
5770 * xsl:variable, xsl:param (QName, in-scope ns, | |
5771 * expression (vars allowed)) | |
5772 * xsl:attribute-set (QName, in-scope ns) | |
5773 * xsl:strip-space, xsl:preserve-space (XPath NameTests, | |
5774 * in-scope ns) | |
5775 * I *think* global scope, merge with includes | |
5776 * xsl:output (QName, in-scope ns) | |
5777 * xsl:key (QName, in-scope ns, pattern, | |
5778 * expression (vars *not* allowed)) | |
5779 * xsl:decimal-format (QName, needs in-scope ns) | |
5780 * xsl:namespace-alias (in-scope ns) | |
5781 * global scope, merge with includes | |
5782 * xsl:template (last, QName, pattern) | |
5783 * | |
5784 * (whitespace-only text-nodes have *not* been removed | |
5785 * yet; this will be done in xsltParseSequenceConstructor) | |
5786 * | |
5787 * Report misplaced child-nodes first. | |
5788 */ | |
5789 cur = node->children; | |
5790 while (cur != NULL) { | |
5791 if (cur->type == XML_TEXT_NODE) { | |
5792 xsltTransformError(NULL, style, cur, | |
5793 "Misplaced text node (content: '%s').\n", | |
5794 (cur->content != NULL) ? cur->content : BAD_CAST ""); | |
5795 style->errors++; | |
5796 } else if (cur->type != XML_ELEMENT_NODE) { | |
5797 xsltTransformError(NULL, style, cur, "Misplaced node.\n"); | |
5798 style->errors++; | |
5799 } | |
5800 cur = cur->next; | |
5801 } | |
5802 /* | |
5803 * Skip xsl:import elements; they have been processed | |
5804 * already. | |
5805 */ | |
5806 cur = node->children; | |
5807 while ((cur != NULL) && xsltParseFindTopLevelElem(cctxt, cur, | |
5808 BAD_CAST "import", XSLT_NAMESPACE, 1, &cur) == 1) | |
5809 cur = cur->next; | |
5810 if (cur == NULL) | |
5811 goto exit; | |
5812 | |
5813 start = cur; | |
5814 /* | |
5815 * Process all top-level xsl:param elements. | |
5816 */ | |
5817 while ((cur != NULL) && | |
5818 xsltParseFindTopLevelElem(cctxt, cur, | |
5819 BAD_CAST "param", XSLT_NAMESPACE, 0, &cur) == 1) | |
5820 { | |
5821 xsltParseTopLevelXSLTElem(cctxt, cur, XSLT_FUNC_PARAM); | |
5822 cur = cur->next; | |
5823 } | |
5824 /* | |
5825 * Process all top-level xsl:variable elements. | |
5826 */ | |
5827 cur = start; | |
5828 while ((cur != NULL) && | |
5829 xsltParseFindTopLevelElem(cctxt, cur, | |
5830 BAD_CAST "variable", XSLT_NAMESPACE, 0, &cur) == 1) | |
5831 { | |
5832 xsltParseTopLevelXSLTElem(cctxt, cur, XSLT_FUNC_VARIABLE); | |
5833 cur = cur->next; | |
5834 } | |
5835 /* | |
5836 * Process all the rest of top-level elements. | |
5837 */ | |
5838 cur = start; | |
5839 while (cur != NULL) { | |
5840 /* | |
5841 * Process element nodes. | |
5842 */ | |
5843 if (cur->type == XML_ELEMENT_NODE) { | |
5844 if (cur->ns == NULL) { | |
5845 xsltTransformError(NULL, style, cur, | |
5846 "Unexpected top-level element in no namespace.\n"); | |
5847 style->errors++; | |
5848 cur = cur->next; | |
5849 continue; | |
5850 } | |
5851 /* | |
5852 * Process all XSLT elements. | |
5853 */ | |
5854 if (IS_XSLT_ELEM_FAST(cur)) { | |
5855 /* | |
5856 * xsl:import is only allowed at the beginning. | |
5857 */ | |
5858 if (IS_XSLT_NAME(cur, "import")) { | |
5859 xsltTransformError(NULL, style, cur, | |
5860 "Misplaced xsl:import element.\n"); | |
5861 style->errors++; | |
5862 cur = cur->next; | |
5863 continue; | |
5864 } | |
5865 /* | |
5866 * TODO: Change the return type of the parsing functions | |
5867 * to int. | |
5868 */ | |
5869 if (IS_XSLT_NAME(cur, "template")) { | |
5870 #ifdef WITH_XSLT_DEBUG_PARSING | |
5871 templates++; | |
5872 #endif | |
5873 /* | |
5874 * TODO: Is the position of xsl:template in the | |
5875 * tree significant? If not it would be easier to | |
5876 * parse them at a later stage. | |
5877 */ | |
5878 xsltParseXSLTTemplate(cctxt, cur); | |
5879 } else if (IS_XSLT_NAME(cur, "variable")) { | |
5880 /* NOP; done already */ | |
5881 } else if (IS_XSLT_NAME(cur, "param")) { | |
5882 /* NOP; done already */ | |
5883 } else if (IS_XSLT_NAME(cur, "include")) { | |
5884 if (cur->psvi != NULL) | |
5885 xsltParseXSLTStylesheetElemCore(cctxt, cur); | |
5886 else { | |
5887 xsltTransformError(NULL, style, cur, | |
5888 "Internal error: " | |
5889 "(xsltParseXSLTStylesheetElemCore) " | |
5890 "The xsl:include element was not compiled.\n"); | |
5891 style->errors++; | |
5892 } | |
5893 } else if (IS_XSLT_NAME(cur, "strip-space")) { | |
5894 /* No node info needed. */ | |
5895 xsltParseStylesheetStripSpace(style, cur); | |
5896 } else if (IS_XSLT_NAME(cur, "preserve-space")) { | |
5897 /* No node info needed. */ | |
5898 xsltParseStylesheetPreserveSpace(style, cur); | |
5899 } else if (IS_XSLT_NAME(cur, "output")) { | |
5900 /* No node-info needed. */ | |
5901 xsltParseStylesheetOutput(style, cur); | |
5902 } else if (IS_XSLT_NAME(cur, "key")) { | |
5903 /* TODO: node-info needed for expressions ? */ | |
5904 xsltParseStylesheetKey(style, cur); | |
5905 } else if (IS_XSLT_NAME(cur, "decimal-format")) { | |
5906 /* No node-info needed. */ | |
5907 xsltParseStylesheetDecimalFormat(style, cur); | |
5908 } else if (IS_XSLT_NAME(cur, "attribute-set")) { | |
5909 xsltParseTopLevelXSLTElem(cctxt, cur, | |
5910 XSLT_FUNC_ATTRSET); | |
5911 } else if (IS_XSLT_NAME(cur, "namespace-alias")) { | |
5912 /* NOP; done already */ | |
5913 } else { | |
5914 if (cctxt->inode->forwardsCompat) { | |
5915 /* | |
5916 * Forwards-compatible mode: | |
5917 * | |
5918 * XSLT-1: "if it is a top-level element and | |
5919 * XSLT 1.0 does not allow such elements as top-level | |
5920 * elements, then the element must be ignored along | |
5921 * with its content;" | |
5922 */ | |
5923 /* | |
5924 * TODO: I don't think we should generate a warning. | |
5925 */ | |
5926 xsltTransformError(NULL, style, cur, | |
5927 "Forwards-compatible mode: Ignoring unknown XSLT " | |
5928 "element '%s'.\n", cur->name); | |
5929 style->warnings++; | |
5930 } else { | |
5931 xsltTransformError(NULL, style, cur, | |
5932 "Unknown XSLT element '%s'.\n", cur->name); | |
5933 style->errors++; | |
5934 } | |
5935 } | |
5936 } else { | |
5937 xsltTopLevelFunction function; | |
5938 | |
5939 /* | |
5940 * Process non-XSLT elements, which are in a | |
5941 * non-NULL namespace. | |
5942 */ | |
5943 /* | |
5944 * QUESTION: What does xsltExtModuleTopLevelLookup() | |
5945 * do exactly? | |
5946 */ | |
5947 function = xsltExtModuleTopLevelLookup(cur->name, | |
5948 cur->ns->href); | |
5949 if (function != NULL) | |
5950 function(style, cur); | |
5951 #ifdef WITH_XSLT_DEBUG_PARSING | |
5952 xsltGenericDebug(xsltGenericDebugContext, | |
5953 "xsltParseXSLTStylesheetElemCore : User-defined " | |
5954 "data element '%s'.\n", cur->name); | |
5955 #endif | |
5956 } | |
5957 } | |
5958 cur = cur->next; | |
5959 } | |
5960 | |
5961 exit: | |
5962 | |
5963 #ifdef WITH_XSLT_DEBUG_PARSING | |
5964 xsltGenericDebug(xsltGenericDebugContext, | |
5965 "### END of parsing top-level elements of doc '%s'.\n", | |
5966 node->doc->URL); | |
5967 xsltGenericDebug(xsltGenericDebugContext, | |
5968 "### Templates: %d\n", templates); | |
5969 #ifdef XSLT_REFACTORED | |
5970 xsltGenericDebug(xsltGenericDebugContext, | |
5971 "### Max inodes: %d\n", cctxt->maxNodeInfos); | |
5972 xsltGenericDebug(xsltGenericDebugContext, | |
5973 "### Max LREs : %d\n", cctxt->maxLREs); | |
5974 #endif /* XSLT_REFACTORED */ | |
5975 #endif /* WITH_XSLT_DEBUG_PARSING */ | |
5976 | |
5977 xsltCompilerNodePop(cctxt, node); | |
5978 return(0); | |
5979 } | |
5980 | |
5981 /** | |
5982 * xsltParseXSLTStylesheet: | |
5983 * @cctxt: the compiler context | |
5984 * @node: the xsl:stylesheet/xsl:transform element-node | |
5985 * | |
5986 * Parses the xsl:stylesheet and xsl:transform element. | |
5987 * | |
5988 * <xsl:stylesheet | |
5989 * id = id | |
5990 * extension-element-prefixes = tokens | |
5991 * exclude-result-prefixes = tokens | |
5992 * version = number> | |
5993 * <!-- Content: (xsl:import*, top-level-elements) --> | |
5994 * </xsl:stylesheet> | |
5995 * | |
5996 * BIG TODO: The xsl:include stuff. | |
5997 * | |
5998 * Called by xsltParseStylesheetTree() | |
5999 * | |
6000 * Returns 0 on success, a positive result on errors and | |
6001 * -1 on API or internal errors. | |
6002 */ | |
6003 static int | |
6004 xsltParseXSLTStylesheetElem(xsltCompilerCtxtPtr cctxt, xmlNodePtr node) | |
6005 { | |
6006 xmlNodePtr cur, start; | |
6007 | |
6008 if ((cctxt == NULL) || (node == NULL) || (node->type != XML_ELEMENT_NODE)) | |
6009 return(-1); | |
6010 | |
6011 if (node->children == NULL) | |
6012 goto exit; | |
6013 | |
6014 /* | |
6015 * Process top-level elements: | |
6016 * xsl:import (must be first) | |
6017 * xsl:include (this is just a pre-processing) | |
6018 */ | |
6019 cur = node->children; | |
6020 /* | |
6021 * Process xsl:import elements. | |
6022 * XSLT 1.0: "The xsl:import element children must precede all | |
6023 * other element children of an xsl:stylesheet element, | |
6024 * including any xsl:include element children." | |
6025 */ | |
6026 while ((cur != NULL) && | |
6027 xsltParseFindTopLevelElem(cctxt, cur, | |
6028 BAD_CAST "import", XSLT_NAMESPACE, 1, &cur) == 1) | |
6029 { | |
6030 if (xsltParseStylesheetImport(cctxt->style, cur) != 0) { | |
6031 cctxt->style->errors++; | |
6032 } | |
6033 cur = cur->next; | |
6034 } | |
6035 if (cur == NULL) | |
6036 goto exit; | |
6037 start = cur; | |
6038 /* | |
6039 * Pre-process all xsl:include elements. | |
6040 */ | |
6041 cur = start; | |
6042 while ((cur != NULL) && | |
6043 xsltParseFindTopLevelElem(cctxt, cur, | |
6044 BAD_CAST "include", XSLT_NAMESPACE, 0, &cur) == 1) | |
6045 { | |
6046 xsltParseTopLevelXSLTElem(cctxt, cur, XSLT_FUNC_INCLUDE); | |
6047 cur = cur->next; | |
6048 } | |
6049 /* | |
6050 * Pre-process all xsl:namespace-alias elements. | |
6051 * URGENT TODO: This won't work correctly: the order of included | |
6052 * aliases and aliases defined here is significant. | |
6053 */ | |
6054 cur = start; | |
6055 while ((cur != NULL) && | |
6056 xsltParseFindTopLevelElem(cctxt, cur, | |
6057 BAD_CAST "namespace-alias", XSLT_NAMESPACE, 0, &cur) == 1) | |
6058 { | |
6059 xsltNamespaceAlias(cctxt->style, cur); | |
6060 cur = cur->next; | |
6061 } | |
6062 | |
6063 if (cctxt->isInclude) { | |
6064 /* | |
6065 * If this stylesheet is intended for inclusion, then | |
6066 * we will process only imports and includes. | |
6067 */ | |
6068 goto exit; | |
6069 } | |
6070 /* | |
6071 * Now parse the rest of the top-level elements. | |
6072 */ | |
6073 xsltParseXSLTStylesheetElemCore(cctxt, node); | |
6074 exit: | |
6075 | |
6076 return(0); | |
6077 } | |
6078 | |
6079 #else /* XSLT_REFACTORED */ | |
6080 | |
6081 /** | |
6082 * xsltParseStylesheetTop: | |
6083 * @style: the XSLT stylesheet | |
6084 * @top: the top level "stylesheet" or "transform" element | |
6085 * | |
6086 * scan the top level elements of an XSL stylesheet | |
6087 */ | |
6088 static void | |
6089 xsltParseStylesheetTop(xsltStylesheetPtr style, xmlNodePtr top) { | |
6090 xmlNodePtr cur; | |
6091 xmlChar *prop; | |
6092 #ifdef WITH_XSLT_DEBUG_PARSING | |
6093 int templates = 0; | |
6094 #endif | |
6095 | |
6096 if ((top == NULL) || (top->type != XML_ELEMENT_NODE)) | |
6097 return; | |
6098 | |
6099 prop = xmlGetNsProp(top, (const xmlChar *)"version", NULL); | |
6100 if (prop == NULL) { | |
6101 xsltTransformError(NULL, style, top, | |
6102 "xsl:version is missing: document may not be a stylesheet\n"); | |
6103 if (style != NULL) style->warnings++; | |
6104 } else { | |
6105 if ((!xmlStrEqual(prop, (const xmlChar *)"1.0")) && | |
6106 (!xmlStrEqual(prop, (const xmlChar *)"1.1"))) { | |
6107 xsltTransformError(NULL, style, top, | |
6108 "xsl:version: only 1.1 features are supported\n"); | |
6109 if (style != NULL) { | |
6110 style->forwards_compatible = 1; | |
6111 style->warnings++; | |
6112 } | |
6113 } | |
6114 xmlFree(prop); | |
6115 } | |
6116 | |
6117 /* | |
6118 * process xsl:import elements | |
6119 */ | |
6120 cur = top->children; | |
6121 while (cur != NULL) { | |
6122 if (IS_BLANK_NODE(cur)) { | |
6123 cur = cur->next; | |
6124 continue; | |
6125 } | |
6126 if (IS_XSLT_ELEM(cur) && IS_XSLT_NAME(cur, "import")) { | |
6127 if (xsltParseStylesheetImport(style, cur) != 0) | |
6128 if (style != NULL) style->errors++; | |
6129 } else | |
6130 break; | |
6131 cur = cur->next; | |
6132 } | |
6133 | |
6134 /* | |
6135 * process other top-level elements | |
6136 */ | |
6137 while (cur != NULL) { | |
6138 if (IS_BLANK_NODE(cur)) { | |
6139 cur = cur->next; | |
6140 continue; | |
6141 } | |
6142 if (cur->type == XML_TEXT_NODE) { | |
6143 if (cur->content != NULL) { | |
6144 xsltTransformError(NULL, style, cur, | |
6145 "misplaced text node: '%s'\n", cur->content); | |
6146 } | |
6147 if (style != NULL) style->errors++; | |
6148 cur = cur->next; | |
6149 continue; | |
6150 } | |
6151 if ((cur->type == XML_ELEMENT_NODE) && (cur->ns == NULL)) { | |
6152 xsltGenericError(xsltGenericErrorContext, | |
6153 "Found a top-level element %s with null namespace URI\n", | |
6154 cur->name); | |
6155 if (style != NULL) style->errors++; | |
6156 cur = cur->next; | |
6157 continue; | |
6158 } | |
6159 if ((cur->type == XML_ELEMENT_NODE) && (!(IS_XSLT_ELEM(cur)))) { | |
6160 xsltTopLevelFunction function; | |
6161 | |
6162 function = xsltExtModuleTopLevelLookup(cur->name, | |
6163 cur->ns->href); | |
6164 if (function != NULL) | |
6165 function(style, cur); | |
6166 | |
6167 #ifdef WITH_XSLT_DEBUG_PARSING | |
6168 xsltGenericDebug(xsltGenericDebugContext, | |
6169 "xsltParseStylesheetTop : found foreign element %s\n", | |
6170 cur->name); | |
6171 #endif | |
6172 cur = cur->next; | |
6173 continue; | |
6174 } | |
6175 if (IS_XSLT_NAME(cur, "import")) { | |
6176 xsltTransformError(NULL, style, cur, | |
6177 "xsltParseStylesheetTop: ignoring misplaced import eleme
nt\n"); | |
6178 if (style != NULL) style->errors++; | |
6179 } else if (IS_XSLT_NAME(cur, "include")) { | |
6180 if (xsltParseStylesheetInclude(style, cur) != 0) | |
6181 if (style != NULL) style->errors++; | |
6182 } else if (IS_XSLT_NAME(cur, "strip-space")) { | |
6183 xsltParseStylesheetStripSpace(style, cur); | |
6184 } else if (IS_XSLT_NAME(cur, "preserve-space")) { | |
6185 xsltParseStylesheetPreserveSpace(style, cur); | |
6186 } else if (IS_XSLT_NAME(cur, "output")) { | |
6187 xsltParseStylesheetOutput(style, cur); | |
6188 } else if (IS_XSLT_NAME(cur, "key")) { | |
6189 xsltParseStylesheetKey(style, cur); | |
6190 } else if (IS_XSLT_NAME(cur, "decimal-format")) { | |
6191 xsltParseStylesheetDecimalFormat(style, cur); | |
6192 } else if (IS_XSLT_NAME(cur, "attribute-set")) { | |
6193 xsltParseStylesheetAttributeSet(style, cur); | |
6194 } else if (IS_XSLT_NAME(cur, "variable")) { | |
6195 xsltParseGlobalVariable(style, cur); | |
6196 } else if (IS_XSLT_NAME(cur, "param")) { | |
6197 xsltParseGlobalParam(style, cur); | |
6198 } else if (IS_XSLT_NAME(cur, "template")) { | |
6199 #ifdef WITH_XSLT_DEBUG_PARSING | |
6200 templates++; | |
6201 #endif | |
6202 xsltParseStylesheetTemplate(style, cur); | |
6203 } else if (IS_XSLT_NAME(cur, "namespace-alias")) { | |
6204 xsltNamespaceAlias(style, cur); | |
6205 } else { | |
6206 if ((style != NULL) && (style->forwards_compatible == 0)) { | |
6207 xsltTransformError(NULL, style, cur, | |
6208 "xsltParseStylesheetTop: unknown %s element\n", | |
6209 cur->name); | |
6210 if (style != NULL) style->errors++; | |
6211 } | |
6212 } | |
6213 cur = cur->next; | |
6214 } | |
6215 #ifdef WITH_XSLT_DEBUG_PARSING | |
6216 xsltGenericDebug(xsltGenericDebugContext, | |
6217 "parsed %d templates\n", templates); | |
6218 #endif | |
6219 } | |
6220 | |
6221 #endif /* else of XSLT_REFACTORED */ | |
6222 | |
6223 #ifdef XSLT_REFACTORED | |
6224 /** | |
6225 * xsltParseSimplifiedStylesheetTree: | |
6226 * | |
6227 * @style: the stylesheet (TODO: Change this to the compiler context) | |
6228 * @doc: the document containing the stylesheet. | |
6229 * @node: the node where the stylesheet is rooted at | |
6230 * | |
6231 * Returns 0 in case of success, a positive result if an error occurred | |
6232 * and -1 on API and internal errors. | |
6233 */ | |
6234 static int | |
6235 xsltParseSimplifiedStylesheetTree(xsltCompilerCtxtPtr cctxt, | |
6236 xmlDocPtr doc, | |
6237 xmlNodePtr node) | |
6238 { | |
6239 xsltTemplatePtr templ; | |
6240 | |
6241 if ((cctxt == NULL) || (node == NULL)) | |
6242 return(-1); | |
6243 | |
6244 if (xsltParseAttrXSLTVersion(cctxt, node, 0) == XSLT_ELEMENT_CATEGORY_LRE) | |
6245 { | |
6246 /* | |
6247 * TODO: Adjust report, since this might be an | |
6248 * embedded stylesheet. | |
6249 */ | |
6250 xsltTransformError(NULL, cctxt->style, node, | |
6251 "The attribute 'xsl:version' is missing; cannot identify " | |
6252 "this document as an XSLT stylesheet document.\n"); | |
6253 cctxt->style->errors++; | |
6254 return(1); | |
6255 } | |
6256 | |
6257 #ifdef WITH_XSLT_DEBUG_PARSING | |
6258 xsltGenericDebug(xsltGenericDebugContext, | |
6259 "xsltParseSimplifiedStylesheetTree: document is stylesheet\n"); | |
6260 #endif | |
6261 | |
6262 /* | |
6263 * Create and link the template | |
6264 */ | |
6265 templ = xsltNewTemplate(); | |
6266 if (templ == NULL) { | |
6267 return(-1); | |
6268 } | |
6269 templ->next = cctxt->style->templates; | |
6270 cctxt->style->templates = templ; | |
6271 templ->match = xmlStrdup(BAD_CAST "/"); | |
6272 | |
6273 /* | |
6274 * Note that we push the document-node in this special case. | |
6275 */ | |
6276 xsltCompilerNodePush(cctxt, (xmlNodePtr) doc); | |
6277 /* | |
6278 * In every case, we need to have | |
6279 * the in-scope namespaces of the element, where the | |
6280 * stylesheet is rooted at, regardless if it's an XSLT | |
6281 * instruction or a literal result instruction (or if | |
6282 * this is an embedded stylesheet). | |
6283 */ | |
6284 cctxt->inode->inScopeNs = | |
6285 xsltCompilerBuildInScopeNsList(cctxt, node); | |
6286 /* | |
6287 * Parse the content and register the match-pattern. | |
6288 */ | |
6289 xsltParseSequenceConstructor(cctxt, node); | |
6290 xsltCompilerNodePop(cctxt, (xmlNodePtr) doc); | |
6291 | |
6292 templ->elem = (xmlNodePtr) doc; | |
6293 templ->content = node; | |
6294 xsltAddTemplate(cctxt->style, templ, NULL, NULL); | |
6295 cctxt->style->literal_result = 1; | |
6296 return(0); | |
6297 } | |
6298 | |
6299 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
6300 /** | |
6301 * xsltRestoreDocumentNamespaces: | |
6302 * @ns: map of namespaces | |
6303 * @doc: the document | |
6304 * | |
6305 * Restore the namespaces for the document | |
6306 * | |
6307 * Returns 0 in case of success, -1 in case of failure | |
6308 */ | |
6309 int | |
6310 xsltRestoreDocumentNamespaces(xsltNsMapPtr ns, xmlDocPtr doc) | |
6311 { | |
6312 if (doc == NULL) | |
6313 return(-1); | |
6314 /* | |
6315 * Revert the changes we have applied to the namespace-URIs of | |
6316 * ns-decls. | |
6317 */ | |
6318 while (ns != NULL) { | |
6319 if ((ns->doc == doc) && (ns->ns != NULL)) { | |
6320 ns->ns->href = ns->origNsName; | |
6321 ns->origNsName = NULL; | |
6322 ns->ns = NULL; | |
6323 } | |
6324 ns = ns->next; | |
6325 } | |
6326 return(0); | |
6327 } | |
6328 #endif /* XSLT_REFACTORED_XSLT_NSCOMP */ | |
6329 | |
6330 /** | |
6331 * xsltParseStylesheetProcess: | |
6332 * @style: the XSLT stylesheet (the current stylesheet-level) | |
6333 * @doc: and xmlDoc parsed XML | |
6334 * | |
6335 * Parses an XSLT stylesheet, adding the associated structures. | |
6336 * Called by: | |
6337 * xsltParseStylesheetImportedDoc() (xslt.c) | |
6338 * xsltParseStylesheetInclude() (imports.c) | |
6339 * | |
6340 * Returns the value of the @style parameter if everything | |
6341 * went right, NULL if something went amiss. | |
6342 */ | |
6343 xsltStylesheetPtr | |
6344 xsltParseStylesheetProcess(xsltStylesheetPtr style, xmlDocPtr doc) | |
6345 { | |
6346 xsltCompilerCtxtPtr cctxt; | |
6347 xmlNodePtr cur; | |
6348 int oldIsSimplifiedStylesheet; | |
6349 | |
6350 xsltInitGlobals(); | |
6351 | |
6352 if ((style == NULL) || (doc == NULL)) | |
6353 return(NULL); | |
6354 | |
6355 cctxt = XSLT_CCTXT(style); | |
6356 | |
6357 cur = xmlDocGetRootElement(doc); | |
6358 if (cur == NULL) { | |
6359 xsltTransformError(NULL, style, (xmlNodePtr) doc, | |
6360 "xsltParseStylesheetProcess : empty stylesheet\n"); | |
6361 return(NULL); | |
6362 } | |
6363 oldIsSimplifiedStylesheet = cctxt->simplified; | |
6364 | |
6365 if ((IS_XSLT_ELEM(cur)) && | |
6366 ((IS_XSLT_NAME(cur, "stylesheet")) || | |
6367 (IS_XSLT_NAME(cur, "transform")))) { | |
6368 #ifdef WITH_XSLT_DEBUG_PARSING | |
6369 xsltGenericDebug(xsltGenericDebugContext, | |
6370 "xsltParseStylesheetProcess : found stylesheet\n"); | |
6371 #endif | |
6372 cctxt->simplified = 0; | |
6373 style->literal_result = 0; | |
6374 } else { | |
6375 cctxt->simplified = 1; | |
6376 style->literal_result = 1; | |
6377 } | |
6378 /* | |
6379 * Pre-process the stylesheet if not already done before. | |
6380 * This will remove PIs and comments, merge adjacent | |
6381 * text nodes, internalize strings, etc. | |
6382 */ | |
6383 if (! style->nopreproc) | |
6384 xsltParsePreprocessStylesheetTree(cctxt, cur); | |
6385 /* | |
6386 * Parse and compile the stylesheet. | |
6387 */ | |
6388 if (style->literal_result == 0) { | |
6389 if (xsltParseXSLTStylesheetElem(cctxt, cur) != 0) | |
6390 return(NULL); | |
6391 } else { | |
6392 if (xsltParseSimplifiedStylesheetTree(cctxt, doc, cur) != 0) | |
6393 return(NULL); | |
6394 } | |
6395 | |
6396 cctxt->simplified = oldIsSimplifiedStylesheet; | |
6397 | |
6398 return(style); | |
6399 } | |
6400 | |
6401 #else /* XSLT_REFACTORED */ | |
6402 | |
6403 /** | |
6404 * xsltParseStylesheetProcess: | |
6405 * @ret: the XSLT stylesheet (the current stylesheet-level) | |
6406 * @doc: and xmlDoc parsed XML | |
6407 * | |
6408 * Parses an XSLT stylesheet, adding the associated structures. | |
6409 * Called by: | |
6410 * xsltParseStylesheetImportedDoc() (xslt.c) | |
6411 * xsltParseStylesheetInclude() (imports.c) | |
6412 * | |
6413 * Returns the value of the @style parameter if everything | |
6414 * went right, NULL if something went amiss. | |
6415 */ | |
6416 xsltStylesheetPtr | |
6417 xsltParseStylesheetProcess(xsltStylesheetPtr ret, xmlDocPtr doc) { | |
6418 xmlNodePtr cur; | |
6419 | |
6420 xsltInitGlobals(); | |
6421 | |
6422 if (doc == NULL) | |
6423 return(NULL); | |
6424 if (ret == NULL) | |
6425 return(ret); | |
6426 | |
6427 /* | |
6428 * First steps, remove blank nodes, | |
6429 * locate the xsl:stylesheet element and the | |
6430 * namespace declaration. | |
6431 */ | |
6432 cur = xmlDocGetRootElement(doc); | |
6433 if (cur == NULL) { | |
6434 xsltTransformError(NULL, ret, (xmlNodePtr) doc, | |
6435 "xsltParseStylesheetProcess : empty stylesheet\n"); | |
6436 return(NULL); | |
6437 } | |
6438 | |
6439 if ((IS_XSLT_ELEM(cur)) && | |
6440 ((IS_XSLT_NAME(cur, "stylesheet")) || | |
6441 (IS_XSLT_NAME(cur, "transform")))) { | |
6442 #ifdef WITH_XSLT_DEBUG_PARSING | |
6443 xsltGenericDebug(xsltGenericDebugContext, | |
6444 "xsltParseStylesheetProcess : found stylesheet\n"); | |
6445 #endif | |
6446 ret->literal_result = 0; | |
6447 xsltParseStylesheetExcludePrefix(ret, cur, 1); | |
6448 xsltParseStylesheetExtPrefix(ret, cur, 1); | |
6449 } else { | |
6450 xsltParseStylesheetExcludePrefix(ret, cur, 0); | |
6451 xsltParseStylesheetExtPrefix(ret, cur, 0); | |
6452 ret->literal_result = 1; | |
6453 } | |
6454 if (!ret->nopreproc) { | |
6455 xsltPreprocessStylesheet(ret, cur); | |
6456 } | |
6457 if (ret->literal_result == 0) { | |
6458 xsltParseStylesheetTop(ret, cur); | |
6459 } else { | |
6460 xmlChar *prop; | |
6461 xsltTemplatePtr template; | |
6462 | |
6463 /* | |
6464 * the document itself might be the template, check xsl:version | |
6465 */ | |
6466 prop = xmlGetNsProp(cur, (const xmlChar *)"version", XSLT_NAMESPACE); | |
6467 if (prop == NULL) { | |
6468 xsltTransformError(NULL, ret, cur, | |
6469 "xsltParseStylesheetProcess : document is not a stylesheet\n"); | |
6470 return(NULL); | |
6471 } | |
6472 | |
6473 #ifdef WITH_XSLT_DEBUG_PARSING | |
6474 xsltGenericDebug(xsltGenericDebugContext, | |
6475 "xsltParseStylesheetProcess : document is stylesheet\n"); | |
6476 #endif | |
6477 | |
6478 if ((!xmlStrEqual(prop, (const xmlChar *)"1.0")) && | |
6479 (!xmlStrEqual(prop, (const xmlChar *)"1.1"))) { | |
6480 xsltTransformError(NULL, ret, cur, | |
6481 "xsl:version: only 1.1 features are supported\n"); | |
6482 ret->forwards_compatible = 1; | |
6483 ret->warnings++; | |
6484 } | |
6485 xmlFree(prop); | |
6486 | |
6487 /* | |
6488 * Create and link the template | |
6489 */ | |
6490 template = xsltNewTemplate(); | |
6491 if (template == NULL) { | |
6492 return(NULL); | |
6493 } | |
6494 template->next = ret->templates; | |
6495 ret->templates = template; | |
6496 template->match = xmlStrdup((const xmlChar *)"/"); | |
6497 | |
6498 /* | |
6499 * parse the content and register the pattern | |
6500 */ | |
6501 xsltParseTemplateContent(ret, (xmlNodePtr) doc); | |
6502 template->elem = (xmlNodePtr) doc; | |
6503 template->content = doc->children; | |
6504 xsltAddTemplate(ret, template, NULL, NULL); | |
6505 ret->literal_result = 1; | |
6506 } | |
6507 | |
6508 return(ret); | |
6509 } | |
6510 | |
6511 #endif /* else of XSLT_REFACTORED */ | |
6512 | |
6513 /** | |
6514 * xsltParseStylesheetImportedDoc: | |
6515 * @doc: an xmlDoc parsed XML | |
6516 * @parentStyle: pointer to the parent stylesheet (if it exists) | |
6517 * | |
6518 * parse an XSLT stylesheet building the associated structures | |
6519 * except the processing not needed for imported documents. | |
6520 * | |
6521 * Returns a new XSLT stylesheet structure. | |
6522 */ | |
6523 | |
6524 xsltStylesheetPtr | |
6525 xsltParseStylesheetImportedDoc(xmlDocPtr doc, | |
6526 xsltStylesheetPtr parentStyle) { | |
6527 xsltStylesheetPtr retStyle; | |
6528 | |
6529 if (doc == NULL) | |
6530 return(NULL); | |
6531 | |
6532 retStyle = xsltNewStylesheet(); | |
6533 if (retStyle == NULL) | |
6534 return(NULL); | |
6535 /* | |
6536 * Set the importing stylesheet module; also used to detect recursion. | |
6537 */ | |
6538 retStyle->parent = parentStyle; | |
6539 /* | |
6540 * Adjust the string dict. | |
6541 */ | |
6542 if (doc->dict != NULL) { | |
6543 xmlDictFree(retStyle->dict); | |
6544 retStyle->dict = doc->dict; | |
6545 #ifdef WITH_XSLT_DEBUG | |
6546 xsltGenericDebug(xsltGenericDebugContext, | |
6547 "reusing dictionary from %s for stylesheet\n", | |
6548 doc->URL); | |
6549 #endif | |
6550 xmlDictReference(retStyle->dict); | |
6551 } | |
6552 | |
6553 /* | |
6554 * TODO: Eliminate xsltGatherNamespaces(); we must not restrict | |
6555 * the stylesheet to containt distinct namespace prefixes. | |
6556 */ | |
6557 xsltGatherNamespaces(retStyle); | |
6558 | |
6559 #ifdef XSLT_REFACTORED | |
6560 { | |
6561 xsltCompilerCtxtPtr cctxt; | |
6562 xsltStylesheetPtr oldCurSheet; | |
6563 | |
6564 if (parentStyle == NULL) { | |
6565 xsltPrincipalStylesheetDataPtr principalData; | |
6566 /* | |
6567 * Principal stylesheet | |
6568 * -------------------- | |
6569 */ | |
6570 retStyle->principal = retStyle; | |
6571 /* | |
6572 * Create extra data for the principal stylesheet. | |
6573 */ | |
6574 principalData = xsltNewPrincipalStylesheetData(); | |
6575 if (principalData == NULL) { | |
6576 xsltFreeStylesheet(retStyle); | |
6577 return(NULL); | |
6578 } | |
6579 retStyle->principalData = principalData; | |
6580 /* | |
6581 * Create the compilation context | |
6582 * ------------------------------ | |
6583 * (only once; for the principal stylesheet). | |
6584 * This is currently the only function where the | |
6585 * compilation context is created. | |
6586 */ | |
6587 cctxt = xsltCompilationCtxtCreate(retStyle); | |
6588 if (cctxt == NULL) { | |
6589 xsltFreeStylesheet(retStyle); | |
6590 return(NULL); | |
6591 } | |
6592 retStyle->compCtxt = (void *) cctxt; | |
6593 cctxt->style = retStyle; | |
6594 cctxt->dict = retStyle->dict; | |
6595 cctxt->psData = principalData; | |
6596 /* | |
6597 * Push initial dummy node info. | |
6598 */ | |
6599 cctxt->depth = -1; | |
6600 xsltCompilerNodePush(cctxt, (xmlNodePtr) doc); | |
6601 } else { | |
6602 /* | |
6603 * Imported stylesheet. | |
6604 */ | |
6605 retStyle->principal = parentStyle->principal; | |
6606 cctxt = parentStyle->compCtxt; | |
6607 retStyle->compCtxt = cctxt; | |
6608 } | |
6609 /* | |
6610 * Save the old and set the current stylesheet structure in the | |
6611 * compilation context. | |
6612 */ | |
6613 oldCurSheet = cctxt->style; | |
6614 cctxt->style = retStyle; | |
6615 | |
6616 retStyle->doc = doc; | |
6617 xsltParseStylesheetProcess(retStyle, doc); | |
6618 | |
6619 cctxt->style = oldCurSheet; | |
6620 if (parentStyle == NULL) { | |
6621 /* | |
6622 * Pop the initial dummy node info. | |
6623 */ | |
6624 xsltCompilerNodePop(cctxt, (xmlNodePtr) doc); | |
6625 } else { | |
6626 /* | |
6627 * Clear the compilation context of imported | |
6628 * stylesheets. | |
6629 * TODO: really? | |
6630 */ | |
6631 /* retStyle->compCtxt = NULL; */ | |
6632 } | |
6633 /* | |
6634 * Free the stylesheet if there were errors. | |
6635 */ | |
6636 if (retStyle != NULL) { | |
6637 if (retStyle->errors != 0) { | |
6638 #ifdef XSLT_REFACTORED_XSLT_NSCOMP | |
6639 /* | |
6640 * Restore all changes made to namespace URIs of ns-decls. | |
6641 */ | |
6642 if (cctxt->psData->nsMap) | |
6643 xsltRestoreDocumentNamespaces(cctxt->psData->nsMap, doc); | |
6644 #endif | |
6645 /* | |
6646 * Detach the doc from the stylesheet; otherwise the doc | |
6647 * will be freed in xsltFreeStylesheet(). | |
6648 */ | |
6649 retStyle->doc = NULL; | |
6650 /* | |
6651 * Cleanup the doc if its the main stylesheet. | |
6652 */ | |
6653 if (parentStyle == NULL) { | |
6654 xsltCleanupStylesheetTree(doc, xmlDocGetRootElement(doc)); | |
6655 if (retStyle->compCtxt != NULL) { | |
6656 xsltCompilationCtxtFree(retStyle->compCtxt); | |
6657 retStyle->compCtxt = NULL; | |
6658 } | |
6659 } | |
6660 | |
6661 xsltFreeStylesheet(retStyle); | |
6662 retStyle = NULL; | |
6663 } | |
6664 } | |
6665 } | |
6666 | |
6667 #else /* XSLT_REFACTORED */ | |
6668 /* | |
6669 * Old behaviour. | |
6670 */ | |
6671 retStyle->doc = doc; | |
6672 if (xsltParseStylesheetProcess(retStyle, doc) == NULL) { | |
6673 retStyle->doc = NULL; | |
6674 xsltFreeStylesheet(retStyle); | |
6675 retStyle = NULL; | |
6676 } | |
6677 if (retStyle != NULL) { | |
6678 if (retStyle->errors != 0) { | |
6679 retStyle->doc = NULL; | |
6680 if (parentStyle == NULL) | |
6681 xsltCleanupStylesheetTree(doc, | |
6682 xmlDocGetRootElement(doc)); | |
6683 xsltFreeStylesheet(retStyle); | |
6684 retStyle = NULL; | |
6685 } | |
6686 } | |
6687 #endif /* else of XSLT_REFACTORED */ | |
6688 | |
6689 return(retStyle); | |
6690 } | |
6691 | |
6692 /** | |
6693 * xsltParseStylesheetDoc: | |
6694 * @doc: and xmlDoc parsed XML | |
6695 * | |
6696 * parse an XSLT stylesheet, building the associated structures. doc | |
6697 * is kept as a reference within the returned stylesheet, so changes | |
6698 * to doc after the parsing will be reflected when the stylesheet | |
6699 * is applied, and the doc is automatically freed when the | |
6700 * stylesheet is closed. | |
6701 * | |
6702 * Returns a new XSLT stylesheet structure. | |
6703 */ | |
6704 | |
6705 xsltStylesheetPtr | |
6706 xsltParseStylesheetDoc(xmlDocPtr doc) { | |
6707 xsltStylesheetPtr ret; | |
6708 | |
6709 xsltInitGlobals(); | |
6710 | |
6711 ret = xsltParseStylesheetImportedDoc(doc, NULL); | |
6712 if (ret == NULL) | |
6713 return(NULL); | |
6714 | |
6715 xsltResolveStylesheetAttributeSet(ret); | |
6716 #ifdef XSLT_REFACTORED | |
6717 /* | |
6718 * Free the compilation context. | |
6719 * TODO: Check if it's better to move this cleanup to | |
6720 * xsltParseStylesheetImportedDoc(). | |
6721 */ | |
6722 if (ret->compCtxt != NULL) { | |
6723 xsltCompilationCtxtFree(XSLT_CCTXT(ret)); | |
6724 ret->compCtxt = NULL; | |
6725 } | |
6726 #endif | |
6727 return(ret); | |
6728 } | |
6729 | |
6730 /** | |
6731 * xsltParseStylesheetFile: | |
6732 * @filename: the filename/URL to the stylesheet | |
6733 * | |
6734 * Load and parse an XSLT stylesheet | |
6735 * | |
6736 * Returns a new XSLT stylesheet structure. | |
6737 */ | |
6738 | |
6739 xsltStylesheetPtr | |
6740 xsltParseStylesheetFile(const xmlChar* filename) { | |
6741 xsltSecurityPrefsPtr sec; | |
6742 xsltStylesheetPtr ret; | |
6743 xmlDocPtr doc; | |
6744 | |
6745 xsltInitGlobals(); | |
6746 | |
6747 if (filename == NULL) | |
6748 return(NULL); | |
6749 | |
6750 #ifdef WITH_XSLT_DEBUG_PARSING | |
6751 xsltGenericDebug(xsltGenericDebugContext, | |
6752 "xsltParseStylesheetFile : parse %s\n", filename); | |
6753 #endif | |
6754 | |
6755 /* | |
6756 * Security framework check | |
6757 */ | |
6758 sec = xsltGetDefaultSecurityPrefs(); | |
6759 if (sec != NULL) { | |
6760 int res; | |
6761 | |
6762 res = xsltCheckRead(sec, NULL, filename); | |
6763 if (res == 0) { | |
6764 xsltTransformError(NULL, NULL, NULL, | |
6765 "xsltParseStylesheetFile: read rights for %s denied\n", | |
6766 filename); | |
6767 return(NULL); | |
6768 } | |
6769 } | |
6770 | |
6771 doc = xsltDocDefaultLoader(filename, NULL, XSLT_PARSE_OPTIONS, | |
6772 NULL, XSLT_LOAD_START); | |
6773 if (doc == NULL) { | |
6774 xsltTransformError(NULL, NULL, NULL, | |
6775 "xsltParseStylesheetFile : cannot parse %s\n", filename); | |
6776 return(NULL); | |
6777 } | |
6778 ret = xsltParseStylesheetDoc(doc); | |
6779 if (ret == NULL) { | |
6780 xmlFreeDoc(doc); | |
6781 return(NULL); | |
6782 } | |
6783 | |
6784 return(ret); | |
6785 } | |
6786 | |
6787 /************************************************************************ | |
6788 * * | |
6789 * Handling of Stylesheet PI * | |
6790 * * | |
6791 ************************************************************************/ | |
6792 | |
6793 #define CUR (*cur) | |
6794 #define SKIP(val) cur += (val) | |
6795 #define NXT(val) cur[(val)] | |
6796 #define SKIP_BLANKS \ | |
6797 while (IS_BLANK(CUR)) NEXT | |
6798 #define NEXT ((*cur) ? cur++ : cur) | |
6799 | |
6800 /** | |
6801 * xsltParseStylesheetPI: | |
6802 * @value: the value of the PI | |
6803 * | |
6804 * This function checks that the type is text/xml and extracts | |
6805 * the URI-Reference for the stylesheet | |
6806 * | |
6807 * Returns the URI-Reference for the stylesheet or NULL (it need to | |
6808 * be freed by the caller) | |
6809 */ | |
6810 static xmlChar * | |
6811 xsltParseStylesheetPI(const xmlChar *value) { | |
6812 const xmlChar *cur; | |
6813 const xmlChar *start; | |
6814 xmlChar *val; | |
6815 xmlChar tmp; | |
6816 xmlChar *href = NULL; | |
6817 int isXml = 0; | |
6818 | |
6819 if (value == NULL) | |
6820 return(NULL); | |
6821 | |
6822 cur = value; | |
6823 while (CUR != 0) { | |
6824 SKIP_BLANKS; | |
6825 if ((CUR == 't') && (NXT(1) == 'y') && (NXT(2) == 'p') && | |
6826 (NXT(3) == 'e')) { | |
6827 SKIP(4); | |
6828 SKIP_BLANKS; | |
6829 if (CUR != '=') | |
6830 continue; | |
6831 NEXT; | |
6832 if ((CUR != '\'') && (CUR != '"')) | |
6833 continue; | |
6834 tmp = CUR; | |
6835 NEXT; | |
6836 start = cur; | |
6837 while ((CUR != 0) && (CUR != tmp)) | |
6838 NEXT; | |
6839 if (CUR != tmp) | |
6840 continue; | |
6841 val = xmlStrndup(start, cur - start); | |
6842 NEXT; | |
6843 if (val == NULL) | |
6844 return(NULL); | |
6845 if ((xmlStrcasecmp(val, BAD_CAST "text/xml")) && | |
6846 (xmlStrcasecmp(val, BAD_CAST "text/xsl"))) { | |
6847 xmlFree(val); | |
6848 break; | |
6849 } | |
6850 isXml = 1; | |
6851 xmlFree(val); | |
6852 } else if ((CUR == 'h') && (NXT(1) == 'r') && (NXT(2) == 'e') && | |
6853 (NXT(3) == 'f')) { | |
6854 SKIP(4); | |
6855 SKIP_BLANKS; | |
6856 if (CUR != '=') | |
6857 continue; | |
6858 NEXT; | |
6859 if ((CUR != '\'') && (CUR != '"')) | |
6860 continue; | |
6861 tmp = CUR; | |
6862 NEXT; | |
6863 start = cur; | |
6864 while ((CUR != 0) && (CUR != tmp)) | |
6865 NEXT; | |
6866 if (CUR != tmp) | |
6867 continue; | |
6868 if (href == NULL) | |
6869 href = xmlStrndup(start, cur - start); | |
6870 NEXT; | |
6871 } else { | |
6872 while ((CUR != 0) && (!IS_BLANK(CUR))) | |
6873 NEXT; | |
6874 } | |
6875 | |
6876 } | |
6877 | |
6878 if (!isXml) { | |
6879 if (href != NULL) | |
6880 xmlFree(href); | |
6881 href = NULL; | |
6882 } | |
6883 return(href); | |
6884 } | |
6885 | |
6886 /** | |
6887 * xsltLoadStylesheetPI: | |
6888 * @doc: a document to process | |
6889 * | |
6890 * This function tries to locate the stylesheet PI in the given document | |
6891 * If found, and if contained within the document, it will extract | |
6892 * that subtree to build the stylesheet to process @doc (doc itself will | |
6893 * be modified). If found but referencing an external document it will | |
6894 * attempt to load it and generate a stylesheet from it. In both cases, | |
6895 * the resulting stylesheet and the document need to be freed once the | |
6896 * transformation is done. | |
6897 * | |
6898 * Returns a new XSLT stylesheet structure or NULL if not found. | |
6899 */ | |
6900 xsltStylesheetPtr | |
6901 xsltLoadStylesheetPI(xmlDocPtr doc) { | |
6902 xmlNodePtr child; | |
6903 xsltStylesheetPtr ret = NULL; | |
6904 xmlChar *href = NULL; | |
6905 xmlURIPtr URI; | |
6906 | |
6907 xsltInitGlobals(); | |
6908 | |
6909 if (doc == NULL) | |
6910 return(NULL); | |
6911 | |
6912 /* | |
6913 * Find the text/xml stylesheet PI id any before the root | |
6914 */ | |
6915 child = doc->children; | |
6916 while ((child != NULL) && (child->type != XML_ELEMENT_NODE)) { | |
6917 if ((child->type == XML_PI_NODE) && | |
6918 (xmlStrEqual(child->name, BAD_CAST "xml-stylesheet"))) { | |
6919 href = xsltParseStylesheetPI(child->content); | |
6920 if (href != NULL) | |
6921 break; | |
6922 } | |
6923 child = child->next; | |
6924 } | |
6925 | |
6926 /* | |
6927 * If found check the href to select processing | |
6928 */ | |
6929 if (href != NULL) { | |
6930 #ifdef WITH_XSLT_DEBUG_PARSING | |
6931 xsltGenericDebug(xsltGenericDebugContext, | |
6932 "xsltLoadStylesheetPI : found PI href=%s\n", href); | |
6933 #endif | |
6934 URI = xmlParseURI((const char *) href); | |
6935 if (URI == NULL) { | |
6936 xsltTransformError(NULL, NULL, child, | |
6937 "xml-stylesheet : href %s is not valid\n", href); | |
6938 xmlFree(href); | |
6939 return(NULL); | |
6940 } | |
6941 if ((URI->fragment != NULL) && (URI->scheme == NULL) && | |
6942 (URI->opaque == NULL) && (URI->authority == NULL) && | |
6943 (URI->server == NULL) && (URI->user == NULL) && | |
6944 (URI->path == NULL) && (URI->query == NULL)) { | |
6945 xmlAttrPtr ID; | |
6946 | |
6947 #ifdef WITH_XSLT_DEBUG_PARSING | |
6948 xsltGenericDebug(xsltGenericDebugContext, | |
6949 "xsltLoadStylesheetPI : Reference to ID %s\n", href); | |
6950 #endif | |
6951 if (URI->fragment[0] == '#') | |
6952 ID = xmlGetID(doc, (const xmlChar *) &(URI->fragment[1])); | |
6953 else | |
6954 ID = xmlGetID(doc, (const xmlChar *) URI->fragment); | |
6955 if (ID == NULL) { | |
6956 xsltTransformError(NULL, NULL, child, | |
6957 "xml-stylesheet : no ID %s found\n", URI->fragment); | |
6958 } else { | |
6959 xmlDocPtr fake; | |
6960 xmlNodePtr subtree, newtree; | |
6961 xmlNsPtr ns; | |
6962 | |
6963 #ifdef WITH_XSLT_DEBUG | |
6964 xsltGenericDebug(xsltGenericDebugContext, | |
6965 "creating new document from %s for embedded stylesheet\n", | |
6966 doc->URL); | |
6967 #endif | |
6968 /* | |
6969 * move the subtree in a new document passed to | |
6970 * the stylesheet analyzer | |
6971 */ | |
6972 subtree = ID->parent; | |
6973 fake = xmlNewDoc(NULL); | |
6974 if (fake != NULL) { | |
6975 /* | |
6976 * Should the dictionary still be shared even though | |
6977 * the nodes are being copied rather than moved? | |
6978 */ | |
6979 fake->dict = doc->dict; | |
6980 xmlDictReference(doc->dict); | |
6981 #ifdef WITH_XSLT_DEBUG | |
6982 xsltGenericDebug(xsltGenericDebugContext, | |
6983 "reusing dictionary from %s for embedded stylesheet\n", | |
6984 doc->URL); | |
6985 #endif | |
6986 | |
6987 newtree = xmlDocCopyNode(subtree, fake, 1); | |
6988 | |
6989 fake->URL = xmlNodeGetBase(doc, subtree->parent); | |
6990 #ifdef WITH_XSLT_DEBUG | |
6991 xsltGenericDebug(xsltGenericDebugContext, | |
6992 "set base URI for embedded stylesheet as %s\n", | |
6993 fake->URL); | |
6994 #endif | |
6995 | |
6996 /* | |
6997 * Add all namespaces in scope of embedded stylesheet to | |
6998 * root element of newly created stylesheet document | |
6999 */ | |
7000 while ((subtree = subtree->parent) != (xmlNodePtr)doc) { | |
7001 for (ns = subtree->ns; ns; ns = ns->next) { | |
7002 xmlNewNs(newtree, ns->href, ns->prefix); | |
7003 } | |
7004 } | |
7005 | |
7006 xmlAddChild((xmlNodePtr)fake, newtree); | |
7007 ret = xsltParseStylesheetDoc(fake); | |
7008 if (ret == NULL) | |
7009 xmlFreeDoc(fake); | |
7010 } | |
7011 } | |
7012 } else { | |
7013 xmlChar *URL, *base; | |
7014 | |
7015 /* | |
7016 * Reference to an external stylesheet | |
7017 */ | |
7018 | |
7019 base = xmlNodeGetBase(doc, (xmlNodePtr) doc); | |
7020 URL = xmlBuildURI(href, base); | |
7021 if (URL != NULL) { | |
7022 #ifdef WITH_XSLT_DEBUG_PARSING | |
7023 xsltGenericDebug(xsltGenericDebugContext, | |
7024 "xsltLoadStylesheetPI : fetching %s\n", URL); | |
7025 #endif | |
7026 ret = xsltParseStylesheetFile(URL); | |
7027 xmlFree(URL); | |
7028 } else { | |
7029 #ifdef WITH_XSLT_DEBUG_PARSING | |
7030 xsltGenericDebug(xsltGenericDebugContext, | |
7031 "xsltLoadStylesheetPI : fetching %s\n", href); | |
7032 #endif | |
7033 ret = xsltParseStylesheetFile(href); | |
7034 } | |
7035 if (base != NULL) | |
7036 xmlFree(base); | |
7037 } | |
7038 xmlFreeURI(URI); | |
7039 xmlFree(href); | |
7040 } | |
7041 return(ret); | |
7042 } | |
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