2 * valid.c : part of the code use to do the DTD handling and the validity
5 * See Copyright for the status of this software.
19 #include <libxml/xmlmemory.h>
20 #include <libxml/hash.h>
21 #include <libxml/uri.h>
22 #include <libxml/valid.h>
23 #include <libxml/parser.h>
24 #include <libxml/parserInternals.h>
25 #include <libxml/xmlerror.h>
26 #include <libxml/list.h>
27 #include <libxml/globals.h>
29 static xmlElementPtr xmlGetDtdElementDesc2(xmlDtdPtr dtd, const xmlChar *name,
31 /* #define DEBUG_VALID_ALGO */
32 /* #define DEBUG_REGEXP_ALGO */
35 xmlGenericError(xmlGenericErrorContext, \
36 "Unimplemented block at %s:%d\n", \
39 #ifdef LIBXML_VALID_ENABLED
41 xmlValidateAttributeValueInternal(xmlDocPtr doc, xmlAttributeType type,
42 const xmlChar *value);
44 /************************************************************************
46 * Error handling routines *
48 ************************************************************************/
52 * @ctxt: an XML validation parser context
53 * @extra: extra informations
55 * Handle an out of memory error
58 xmlVErrMemory(xmlValidCtxtPtr ctxt, const char *extra)
60 xmlGenericErrorFunc channel = NULL;
61 xmlParserCtxtPtr pctxt = NULL;
65 channel = ctxt->error;
66 data = ctxt->userData;
67 /* Use the special values to detect if it is part of a parsing
69 if ((ctxt->finishDtd == XML_CTXT_FINISH_DTD_0) ||
70 (ctxt->finishDtd == XML_CTXT_FINISH_DTD_1)) {
71 long delta = (char *) ctxt - (char *) ctxt->userData;
72 if ((delta > 0) && (delta < 250))
73 pctxt = ctxt->userData;
77 __xmlRaiseError(NULL, channel, data,
78 pctxt, NULL, XML_FROM_VALID, XML_ERR_NO_MEMORY,
79 XML_ERR_FATAL, NULL, 0, extra, NULL, NULL, 0, 0,
80 "Memory allocation failed : %s\n", extra);
82 __xmlRaiseError(NULL, channel, data,
83 pctxt, NULL, XML_FROM_VALID, XML_ERR_NO_MEMORY,
84 XML_ERR_FATAL, NULL, 0, NULL, NULL, NULL, 0, 0,
85 "Memory allocation failed\n");
90 * @ctxt: an XML validation parser context
91 * @error: the error number
92 * @extra: extra informations
94 * Handle a validation error
97 xmlErrValid(xmlValidCtxtPtr ctxt, xmlParserErrors error,
98 const char *msg, const char *extra)
100 xmlGenericErrorFunc channel = NULL;
101 xmlParserCtxtPtr pctxt = NULL;
105 channel = ctxt->error;
106 data = ctxt->userData;
107 /* Use the special values to detect if it is part of a parsing
109 if ((ctxt->finishDtd == XML_CTXT_FINISH_DTD_0) ||
110 (ctxt->finishDtd == XML_CTXT_FINISH_DTD_1)) {
111 long delta = (char *) ctxt - (char *) ctxt->userData;
112 if ((delta > 0) && (delta < 250))
113 pctxt = ctxt->userData;
117 __xmlRaiseError(NULL, channel, data,
118 pctxt, NULL, XML_FROM_VALID, error,
119 XML_ERR_ERROR, NULL, 0, extra, NULL, NULL, 0, 0,
122 __xmlRaiseError(NULL, channel, data,
123 pctxt, NULL, XML_FROM_VALID, error,
124 XML_ERR_ERROR, NULL, 0, NULL, NULL, NULL, 0, 0,
128 #if defined(LIBXML_VALID_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
131 * @ctxt: an XML validation parser context
132 * @node: the node raising the error
133 * @error: the error number
134 * @str1: extra informations
135 * @str2: extra informations
136 * @str3: extra informations
138 * Handle a validation error, provide contextual informations
141 xmlErrValidNode(xmlValidCtxtPtr ctxt,
142 xmlNodePtr node, xmlParserErrors error,
143 const char *msg, const xmlChar * str1,
144 const xmlChar * str2, const xmlChar * str3)
146 xmlStructuredErrorFunc schannel = NULL;
147 xmlGenericErrorFunc channel = NULL;
148 xmlParserCtxtPtr pctxt = NULL;
152 channel = ctxt->error;
153 data = ctxt->userData;
154 /* Use the special values to detect if it is part of a parsing
156 if ((ctxt->finishDtd == XML_CTXT_FINISH_DTD_0) ||
157 (ctxt->finishDtd == XML_CTXT_FINISH_DTD_1)) {
158 long delta = (char *) ctxt - (char *) ctxt->userData;
159 if ((delta > 0) && (delta < 250))
160 pctxt = ctxt->userData;
163 __xmlRaiseError(schannel, channel, data, pctxt, node, XML_FROM_VALID, error,
164 XML_ERR_ERROR, NULL, 0,
167 (const char *) str3, 0, 0, msg, str1, str2, str3);
169 #endif /* LIBXML_VALID_ENABLED or LIBXML_SCHEMAS_ENABLED */
171 #ifdef LIBXML_VALID_ENABLED
174 * @ctxt: an XML validation parser context
175 * @node: the node raising the error
176 * @error: the error number
177 * @str1: extra informations
178 * @int2: extra informations
179 * @str3: extra informations
181 * Handle a validation error, provide contextual informations
184 xmlErrValidNodeNr(xmlValidCtxtPtr ctxt,
185 xmlNodePtr node, xmlParserErrors error,
186 const char *msg, const xmlChar * str1,
187 int int2, const xmlChar * str3)
189 xmlStructuredErrorFunc schannel = NULL;
190 xmlGenericErrorFunc channel = NULL;
191 xmlParserCtxtPtr pctxt = NULL;
195 channel = ctxt->error;
196 data = ctxt->userData;
197 /* Use the special values to detect if it is part of a parsing
199 if ((ctxt->finishDtd == XML_CTXT_FINISH_DTD_0) ||
200 (ctxt->finishDtd == XML_CTXT_FINISH_DTD_1)) {
201 long delta = (char *) ctxt - (char *) ctxt->userData;
202 if ((delta > 0) && (delta < 250))
203 pctxt = ctxt->userData;
206 __xmlRaiseError(schannel, channel, data, pctxt, node, XML_FROM_VALID, error,
207 XML_ERR_ERROR, NULL, 0,
210 NULL, int2, 0, msg, str1, int2, str3);
214 * xmlErrValidWarning:
215 * @ctxt: an XML validation parser context
216 * @node: the node raising the error
217 * @error: the error number
218 * @str1: extra information
219 * @str2: extra information
220 * @str3: extra information
222 * Handle a validation error, provide contextual information
225 xmlErrValidWarning(xmlValidCtxtPtr ctxt,
226 xmlNodePtr node, xmlParserErrors error,
227 const char *msg, const xmlChar * str1,
228 const xmlChar * str2, const xmlChar * str3)
230 xmlStructuredErrorFunc schannel = NULL;
231 xmlGenericErrorFunc channel = NULL;
232 xmlParserCtxtPtr pctxt = NULL;
236 channel = ctxt->warning;
237 data = ctxt->userData;
238 /* Use the special values to detect if it is part of a parsing
240 if ((ctxt->finishDtd == XML_CTXT_FINISH_DTD_0) ||
241 (ctxt->finishDtd == XML_CTXT_FINISH_DTD_1)) {
242 long delta = (char *) ctxt - (char *) ctxt->userData;
243 if ((delta > 0) && (delta < 250))
244 pctxt = ctxt->userData;
247 __xmlRaiseError(schannel, channel, data, pctxt, node, XML_FROM_VALID, error,
248 XML_ERR_WARNING, NULL, 0,
251 (const char *) str3, 0, 0, msg, str1, str2, str3);
256 #ifdef LIBXML_REGEXP_ENABLED
258 * If regexp are enabled we can do continuous validation without the
259 * need of a tree to validate the content model. this is done in each
261 * Each xmlValidState represent the validation state associated to the
262 * set of nodes currently open from the document root to the current element.
266 typedef struct _xmlValidState {
267 xmlElementPtr elemDecl; /* pointer to the content model */
268 xmlNodePtr node; /* pointer to the current node */
269 xmlRegExecCtxtPtr exec; /* regexp runtime */
274 vstateVPush(xmlValidCtxtPtr ctxt, xmlElementPtr elemDecl, xmlNodePtr node) {
275 if ((ctxt->vstateMax == 0) || (ctxt->vstateTab == NULL)) {
276 ctxt->vstateMax = 10;
277 ctxt->vstateTab = (xmlValidState *) xmlMalloc(ctxt->vstateMax *
278 sizeof(ctxt->vstateTab[0]));
279 if (ctxt->vstateTab == NULL) {
280 xmlVErrMemory(ctxt, "malloc failed");
285 if (ctxt->vstateNr >= ctxt->vstateMax) {
288 tmp = (xmlValidState *) xmlRealloc(ctxt->vstateTab,
289 2 * ctxt->vstateMax * sizeof(ctxt->vstateTab[0]));
291 xmlVErrMemory(ctxt, "realloc failed");
294 ctxt->vstateMax *= 2;
295 ctxt->vstateTab = tmp;
297 ctxt->vstate = &ctxt->vstateTab[ctxt->vstateNr];
298 ctxt->vstateTab[ctxt->vstateNr].elemDecl = elemDecl;
299 ctxt->vstateTab[ctxt->vstateNr].node = node;
300 if ((elemDecl != NULL) && (elemDecl->etype == XML_ELEMENT_TYPE_ELEMENT)) {
301 if (elemDecl->contModel == NULL)
302 xmlValidBuildContentModel(ctxt, elemDecl);
303 if (elemDecl->contModel != NULL) {
304 ctxt->vstateTab[ctxt->vstateNr].exec =
305 xmlRegNewExecCtxt(elemDecl->contModel, NULL, NULL);
307 ctxt->vstateTab[ctxt->vstateNr].exec = NULL;
308 xmlErrValidNode(ctxt, (xmlNodePtr) elemDecl,
309 XML_ERR_INTERNAL_ERROR,
310 "Failed to build content model regexp for %s\n",
311 node->name, NULL, NULL);
314 return(ctxt->vstateNr++);
318 vstateVPop(xmlValidCtxtPtr ctxt) {
319 xmlElementPtr elemDecl;
321 if (ctxt->vstateNr < 1) return(-1);
323 elemDecl = ctxt->vstateTab[ctxt->vstateNr].elemDecl;
324 ctxt->vstateTab[ctxt->vstateNr].elemDecl = NULL;
325 ctxt->vstateTab[ctxt->vstateNr].node = NULL;
326 if ((elemDecl != NULL) && (elemDecl->etype == XML_ELEMENT_TYPE_ELEMENT)) {
327 xmlRegFreeExecCtxt(ctxt->vstateTab[ctxt->vstateNr].exec);
329 ctxt->vstateTab[ctxt->vstateNr].exec = NULL;
330 if (ctxt->vstateNr >= 1)
331 ctxt->vstate = &ctxt->vstateTab[ctxt->vstateNr - 1];
334 return(ctxt->vstateNr);
337 #else /* not LIBXML_REGEXP_ENABLED */
339 * If regexp are not enabled, it uses a home made algorithm less
340 * complex and easier to
341 * debug/maintain than a generic NFA -> DFA state based algo. The
342 * only restriction is on the deepness of the tree limited by the
343 * size of the occurs bitfield
345 * this is the content of a saved state for rollbacks
348 #define ROLLBACK_OR 0
349 #define ROLLBACK_PARENT 1
351 typedef struct _xmlValidState {
352 xmlElementContentPtr cont; /* pointer to the content model subtree */
353 xmlNodePtr node; /* pointer to the current node in the list */
354 long occurs;/* bitfield for multiple occurrences */
355 unsigned char depth; /* current depth in the overall tree */
356 unsigned char state; /* ROLLBACK_XXX */
359 #define MAX_RECURSE 25000
360 #define MAX_DEPTH ((sizeof(_xmlValidState.occurs)) * 8)
361 #define CONT ctxt->vstate->cont
362 #define NODE ctxt->vstate->node
363 #define DEPTH ctxt->vstate->depth
364 #define OCCURS ctxt->vstate->occurs
365 #define STATE ctxt->vstate->state
367 #define OCCURRENCE (ctxt->vstate->occurs & (1 << DEPTH))
368 #define PARENT_OCCURRENCE (ctxt->vstate->occurs & ((1 << DEPTH) - 1))
370 #define SET_OCCURRENCE ctxt->vstate->occurs |= (1 << DEPTH)
371 #define RESET_OCCURRENCE ctxt->vstate->occurs &= ((1 << DEPTH) - 1)
374 vstateVPush(xmlValidCtxtPtr ctxt, xmlElementContentPtr cont,
375 xmlNodePtr node, unsigned char depth, long occurs,
376 unsigned char state) {
377 int i = ctxt->vstateNr - 1;
379 if (ctxt->vstateNr > MAX_RECURSE) {
382 if (ctxt->vstateTab == NULL) {
384 ctxt->vstateTab = (xmlValidState *) xmlMalloc(
385 ctxt->vstateMax * sizeof(ctxt->vstateTab[0]));
386 if (ctxt->vstateTab == NULL) {
387 xmlVErrMemory(ctxt, "malloc failed");
391 if (ctxt->vstateNr >= ctxt->vstateMax) {
394 tmp = (xmlValidState *) xmlRealloc(ctxt->vstateTab,
395 2 * ctxt->vstateMax * sizeof(ctxt->vstateTab[0]));
397 xmlVErrMemory(ctxt, "malloc failed");
400 ctxt->vstateMax *= 2;
401 ctxt->vstateTab = tmp;
402 ctxt->vstate = &ctxt->vstateTab[0];
405 * Don't push on the stack a state already here
407 if ((i >= 0) && (ctxt->vstateTab[i].cont == cont) &&
408 (ctxt->vstateTab[i].node == node) &&
409 (ctxt->vstateTab[i].depth == depth) &&
410 (ctxt->vstateTab[i].occurs == occurs) &&
411 (ctxt->vstateTab[i].state == state))
412 return(ctxt->vstateNr);
413 ctxt->vstateTab[ctxt->vstateNr].cont = cont;
414 ctxt->vstateTab[ctxt->vstateNr].node = node;
415 ctxt->vstateTab[ctxt->vstateNr].depth = depth;
416 ctxt->vstateTab[ctxt->vstateNr].occurs = occurs;
417 ctxt->vstateTab[ctxt->vstateNr].state = state;
418 return(ctxt->vstateNr++);
422 vstateVPop(xmlValidCtxtPtr ctxt) {
423 if (ctxt->vstateNr <= 1) return(-1);
425 ctxt->vstate = &ctxt->vstateTab[0];
426 ctxt->vstate->cont = ctxt->vstateTab[ctxt->vstateNr].cont;
427 ctxt->vstate->node = ctxt->vstateTab[ctxt->vstateNr].node;
428 ctxt->vstate->depth = ctxt->vstateTab[ctxt->vstateNr].depth;
429 ctxt->vstate->occurs = ctxt->vstateTab[ctxt->vstateNr].occurs;
430 ctxt->vstate->state = ctxt->vstateTab[ctxt->vstateNr].state;
431 return(ctxt->vstateNr);
434 #endif /* LIBXML_REGEXP_ENABLED */
437 nodeVPush(xmlValidCtxtPtr ctxt, xmlNodePtr value)
439 if (ctxt->nodeMax <= 0) {
442 (xmlNodePtr *) xmlMalloc(ctxt->nodeMax *
443 sizeof(ctxt->nodeTab[0]));
444 if (ctxt->nodeTab == NULL) {
445 xmlVErrMemory(ctxt, "malloc failed");
450 if (ctxt->nodeNr >= ctxt->nodeMax) {
452 tmp = (xmlNodePtr *) xmlRealloc(ctxt->nodeTab,
453 ctxt->nodeMax * 2 * sizeof(ctxt->nodeTab[0]));
455 xmlVErrMemory(ctxt, "realloc failed");
461 ctxt->nodeTab[ctxt->nodeNr] = value;
463 return (ctxt->nodeNr++);
466 nodeVPop(xmlValidCtxtPtr ctxt)
470 if (ctxt->nodeNr <= 0)
473 if (ctxt->nodeNr > 0)
474 ctxt->node = ctxt->nodeTab[ctxt->nodeNr - 1];
477 ret = ctxt->nodeTab[ctxt->nodeNr];
478 ctxt->nodeTab[ctxt->nodeNr] = NULL;
482 #ifdef DEBUG_VALID_ALGO
484 xmlValidPrintNode(xmlNodePtr cur) {
486 xmlGenericError(xmlGenericErrorContext, "null");
490 case XML_ELEMENT_NODE:
491 xmlGenericError(xmlGenericErrorContext, "%s ", cur->name);
494 xmlGenericError(xmlGenericErrorContext, "text ");
496 case XML_CDATA_SECTION_NODE:
497 xmlGenericError(xmlGenericErrorContext, "cdata ");
499 case XML_ENTITY_REF_NODE:
500 xmlGenericError(xmlGenericErrorContext, "&%s; ", cur->name);
503 xmlGenericError(xmlGenericErrorContext, "pi(%s) ", cur->name);
505 case XML_COMMENT_NODE:
506 xmlGenericError(xmlGenericErrorContext, "comment ");
508 case XML_ATTRIBUTE_NODE:
509 xmlGenericError(xmlGenericErrorContext, "?attr? ");
511 case XML_ENTITY_NODE:
512 xmlGenericError(xmlGenericErrorContext, "?ent? ");
514 case XML_DOCUMENT_NODE:
515 xmlGenericError(xmlGenericErrorContext, "?doc? ");
517 case XML_DOCUMENT_TYPE_NODE:
518 xmlGenericError(xmlGenericErrorContext, "?doctype? ");
520 case XML_DOCUMENT_FRAG_NODE:
521 xmlGenericError(xmlGenericErrorContext, "?frag? ");
523 case XML_NOTATION_NODE:
524 xmlGenericError(xmlGenericErrorContext, "?nota? ");
526 case XML_HTML_DOCUMENT_NODE:
527 xmlGenericError(xmlGenericErrorContext, "?html? ");
529 #ifdef LIBXML_DOCB_ENABLED
530 case XML_DOCB_DOCUMENT_NODE:
531 xmlGenericError(xmlGenericErrorContext, "?docb? ");
535 xmlGenericError(xmlGenericErrorContext, "?dtd? ");
537 case XML_ELEMENT_DECL:
538 xmlGenericError(xmlGenericErrorContext, "?edecl? ");
540 case XML_ATTRIBUTE_DECL:
541 xmlGenericError(xmlGenericErrorContext, "?adecl? ");
543 case XML_ENTITY_DECL:
544 xmlGenericError(xmlGenericErrorContext, "?entdecl? ");
546 case XML_NAMESPACE_DECL:
547 xmlGenericError(xmlGenericErrorContext, "?nsdecl? ");
549 case XML_XINCLUDE_START:
550 xmlGenericError(xmlGenericErrorContext, "incstart ");
552 case XML_XINCLUDE_END:
553 xmlGenericError(xmlGenericErrorContext, "incend ");
559 xmlValidPrintNodeList(xmlNodePtr cur) {
561 xmlGenericError(xmlGenericErrorContext, "null ");
562 while (cur != NULL) {
563 xmlValidPrintNode(cur);
569 xmlValidDebug(xmlNodePtr cur, xmlElementContentPtr cont) {
573 xmlGenericError(xmlGenericErrorContext, "valid: ");
574 xmlValidPrintNodeList(cur);
575 xmlGenericError(xmlGenericErrorContext, "against ");
576 xmlSnprintfElementContent(expr, 5000, cont, 1);
577 xmlGenericError(xmlGenericErrorContext, "%s\n", expr);
581 xmlValidDebugState(xmlValidStatePtr state) {
582 xmlGenericError(xmlGenericErrorContext, "(");
583 if (state->cont == NULL)
584 xmlGenericError(xmlGenericErrorContext, "null,");
586 switch (state->cont->type) {
587 case XML_ELEMENT_CONTENT_PCDATA:
588 xmlGenericError(xmlGenericErrorContext, "pcdata,");
590 case XML_ELEMENT_CONTENT_ELEMENT:
591 xmlGenericError(xmlGenericErrorContext, "%s,",
594 case XML_ELEMENT_CONTENT_SEQ:
595 xmlGenericError(xmlGenericErrorContext, "seq,");
597 case XML_ELEMENT_CONTENT_OR:
598 xmlGenericError(xmlGenericErrorContext, "or,");
601 xmlValidPrintNode(state->node);
602 xmlGenericError(xmlGenericErrorContext, ",%d,%X,%d)",
603 state->depth, state->occurs, state->state);
607 xmlValidStateDebug(xmlValidCtxtPtr ctxt) {
610 xmlGenericError(xmlGenericErrorContext, "state: ");
611 xmlValidDebugState(ctxt->vstate);
612 xmlGenericError(xmlGenericErrorContext, " stack: %d ",
614 for (i = 0, j = ctxt->vstateNr - 1;(i < 3) && (j > 0);i++,j--)
615 xmlValidDebugState(&ctxt->vstateTab[j]);
616 xmlGenericError(xmlGenericErrorContext, "\n");
620 #define DEBUG_VALID_STATE(n,c) xmlValidDebug(n,c);
623 #define DEBUG_VALID_STATE(n,c) xmlValidStateDebug(ctxt);
624 #define DEBUG_VALID_MSG(m) \
625 xmlGenericError(xmlGenericErrorContext, "%s\n", m);
628 #define DEBUG_VALID_STATE(n,c)
629 #define DEBUG_VALID_MSG(m)
632 /* TODO: use hash table for accesses to elem and attribute definitions */
636 if (doc == NULL) return(0); \
637 else if ((doc->intSubset == NULL) && \
638 (doc->extSubset == NULL)) return(0)
640 #ifdef LIBXML_REGEXP_ENABLED
642 /************************************************************************
644 * Content model validation based on the regexps *
646 ************************************************************************/
649 * xmlValidBuildAContentModel:
650 * @content: the content model
651 * @ctxt: the schema parser context
652 * @name: the element name whose content is being built
654 * Generate the automata sequence needed for that type
656 * Returns 1 if successful or 0 in case of error.
659 xmlValidBuildAContentModel(xmlElementContentPtr content,
660 xmlValidCtxtPtr ctxt,
661 const xmlChar *name) {
662 if (content == NULL) {
663 xmlErrValidNode(ctxt, NULL, XML_ERR_INTERNAL_ERROR,
664 "Found NULL content in content model of %s\n",
668 switch (content->type) {
669 case XML_ELEMENT_CONTENT_PCDATA:
670 xmlErrValidNode(ctxt, NULL, XML_ERR_INTERNAL_ERROR,
671 "Found PCDATA in content model of %s\n",
675 case XML_ELEMENT_CONTENT_ELEMENT: {
676 xmlAutomataStatePtr oldstate = ctxt->state;
680 fullname = xmlBuildQName(content->name, content->prefix, fn, 50);
681 if (fullname == NULL) {
682 xmlVErrMemory(ctxt, "Building content model");
686 switch (content->ocur) {
687 case XML_ELEMENT_CONTENT_ONCE:
688 ctxt->state = xmlAutomataNewTransition(ctxt->am,
689 ctxt->state, NULL, fullname, NULL);
691 case XML_ELEMENT_CONTENT_OPT:
692 ctxt->state = xmlAutomataNewTransition(ctxt->am,
693 ctxt->state, NULL, fullname, NULL);
694 xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
696 case XML_ELEMENT_CONTENT_PLUS:
697 ctxt->state = xmlAutomataNewTransition(ctxt->am,
698 ctxt->state, NULL, fullname, NULL);
699 xmlAutomataNewTransition(ctxt->am, ctxt->state,
700 ctxt->state, fullname, NULL);
702 case XML_ELEMENT_CONTENT_MULT:
703 ctxt->state = xmlAutomataNewEpsilon(ctxt->am,
705 xmlAutomataNewTransition(ctxt->am,
706 ctxt->state, ctxt->state, fullname, NULL);
709 if ((fullname != fn) && (fullname != content->name))
713 case XML_ELEMENT_CONTENT_SEQ: {
714 xmlAutomataStatePtr oldstate, oldend;
715 xmlElementContentOccur ocur;
718 * Simply iterate over the content
720 oldstate = ctxt->state;
721 ocur = content->ocur;
722 if (ocur != XML_ELEMENT_CONTENT_ONCE) {
723 ctxt->state = xmlAutomataNewEpsilon(ctxt->am, oldstate, NULL);
724 oldstate = ctxt->state;
727 xmlValidBuildAContentModel(content->c1, ctxt, name);
728 content = content->c2;
729 } while ((content->type == XML_ELEMENT_CONTENT_SEQ) &&
730 (content->ocur == XML_ELEMENT_CONTENT_ONCE));
731 xmlValidBuildAContentModel(content, ctxt, name);
732 oldend = ctxt->state;
733 ctxt->state = xmlAutomataNewEpsilon(ctxt->am, oldend, NULL);
735 case XML_ELEMENT_CONTENT_ONCE:
737 case XML_ELEMENT_CONTENT_OPT:
738 xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
740 case XML_ELEMENT_CONTENT_MULT:
741 xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
742 xmlAutomataNewEpsilon(ctxt->am, oldend, oldstate);
744 case XML_ELEMENT_CONTENT_PLUS:
745 xmlAutomataNewEpsilon(ctxt->am, oldend, oldstate);
750 case XML_ELEMENT_CONTENT_OR: {
751 xmlAutomataStatePtr oldstate, oldend;
752 xmlElementContentOccur ocur;
754 ocur = content->ocur;
755 if ((ocur == XML_ELEMENT_CONTENT_PLUS) ||
756 (ocur == XML_ELEMENT_CONTENT_MULT)) {
757 ctxt->state = xmlAutomataNewEpsilon(ctxt->am,
760 oldstate = ctxt->state;
761 oldend = xmlAutomataNewState(ctxt->am);
764 * iterate over the subtypes and remerge the end with an
768 ctxt->state = oldstate;
769 xmlValidBuildAContentModel(content->c1, ctxt, name);
770 xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldend);
771 content = content->c2;
772 } while ((content->type == XML_ELEMENT_CONTENT_OR) &&
773 (content->ocur == XML_ELEMENT_CONTENT_ONCE));
774 ctxt->state = oldstate;
775 xmlValidBuildAContentModel(content, ctxt, name);
776 xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldend);
777 ctxt->state = xmlAutomataNewEpsilon(ctxt->am, oldend, NULL);
779 case XML_ELEMENT_CONTENT_ONCE:
781 case XML_ELEMENT_CONTENT_OPT:
782 xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
784 case XML_ELEMENT_CONTENT_MULT:
785 xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
786 xmlAutomataNewEpsilon(ctxt->am, oldend, oldstate);
788 case XML_ELEMENT_CONTENT_PLUS:
789 xmlAutomataNewEpsilon(ctxt->am, oldend, oldstate);
795 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
796 "ContentModel broken for element %s\n",
797 (const char *) name);
803 * xmlValidBuildContentModel:
804 * @ctxt: a validation context
805 * @elem: an element declaration node
807 * (Re)Build the automata associated to the content model of this
810 * Returns 1 in case of success, 0 in case of error
813 xmlValidBuildContentModel(xmlValidCtxtPtr ctxt, xmlElementPtr elem) {
815 if ((ctxt == NULL) || (elem == NULL))
817 if (elem->type != XML_ELEMENT_DECL)
819 if (elem->etype != XML_ELEMENT_TYPE_ELEMENT)
821 /* TODO: should we rebuild in this case ? */
822 if (elem->contModel != NULL) {
823 if (!xmlRegexpIsDeterminist(elem->contModel)) {
830 ctxt->am = xmlNewAutomata();
831 if (ctxt->am == NULL) {
832 xmlErrValidNode(ctxt, (xmlNodePtr) elem,
833 XML_ERR_INTERNAL_ERROR,
834 "Cannot create automata for element %s\n",
835 elem->name, NULL, NULL);
838 ctxt->state = xmlAutomataGetInitState(ctxt->am);
839 xmlValidBuildAContentModel(elem->content, ctxt, elem->name);
840 xmlAutomataSetFinalState(ctxt->am, ctxt->state);
841 elem->contModel = xmlAutomataCompile(ctxt->am);
842 if (xmlRegexpIsDeterminist(elem->contModel) != 1) {
845 xmlSnprintfElementContent(expr, 5000, elem->content, 1);
846 xmlErrValidNode(ctxt, (xmlNodePtr) elem,
847 XML_DTD_CONTENT_NOT_DETERMINIST,
848 "Content model of %s is not determinist: %s\n",
849 elem->name, BAD_CAST expr, NULL);
850 #ifdef DEBUG_REGEXP_ALGO
851 xmlRegexpPrint(stderr, elem->contModel);
855 xmlFreeAutomata(ctxt->am);
860 xmlFreeAutomata(ctxt->am);
865 #endif /* LIBXML_REGEXP_ENABLED */
867 /****************************************************************
869 * Util functions for data allocation/deallocation *
871 ****************************************************************/
876 * Allocate a validation context structure.
878 * Returns NULL if not, otherwise the new validation context structure
880 xmlValidCtxtPtr xmlNewValidCtxt(void) {
883 if ((ret = xmlMalloc(sizeof (xmlValidCtxt))) == NULL) {
884 xmlVErrMemory(NULL, "malloc failed");
888 (void) memset(ret, 0, sizeof (xmlValidCtxt));
895 * @cur: the validation context to free
897 * Free a validation context structure.
900 xmlFreeValidCtxt(xmlValidCtxtPtr cur) {
901 if (cur->vstateTab != NULL)
902 xmlFree(cur->vstateTab);
903 if (cur->nodeTab != NULL)
904 xmlFree(cur->nodeTab);
908 #endif /* LIBXML_VALID_ENABLED */
911 * xmlNewDocElementContent:
913 * @name: the subelement name or NULL
914 * @type: the type of element content decl
916 * Allocate an element content structure for the document.
918 * Returns NULL if not, otherwise the new element content structure
921 xmlNewDocElementContent(xmlDocPtr doc, const xmlChar *name,
922 xmlElementContentType type) {
923 xmlElementContentPtr ret;
924 xmlDictPtr dict = NULL;
930 case XML_ELEMENT_CONTENT_ELEMENT:
932 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
933 "xmlNewElementContent : name == NULL !\n",
937 case XML_ELEMENT_CONTENT_PCDATA:
938 case XML_ELEMENT_CONTENT_SEQ:
939 case XML_ELEMENT_CONTENT_OR:
941 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
942 "xmlNewElementContent : name != NULL !\n",
947 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
948 "Internal: ELEMENT content corrupted invalid type\n",
952 ret = (xmlElementContentPtr) xmlMalloc(sizeof(xmlElementContent));
954 xmlVErrMemory(NULL, "malloc failed");
957 memset(ret, 0, sizeof(xmlElementContent));
959 ret->ocur = XML_ELEMENT_CONTENT_ONCE;
964 tmp = xmlSplitQName3(name, &l);
967 ret->name = xmlStrdup(name);
969 ret->name = xmlDictLookup(dict, name, -1);
972 ret->prefix = xmlStrndup(name, l);
973 ret->name = xmlStrdup(tmp);
975 ret->prefix = xmlDictLookup(dict, name, l);
976 ret->name = xmlDictLookup(dict, tmp, -1);
984 * xmlNewElementContent:
985 * @name: the subelement name or NULL
986 * @type: the type of element content decl
988 * Allocate an element content structure.
989 * Deprecated in favor of xmlNewDocElementContent
991 * Returns NULL if not, otherwise the new element content structure
994 xmlNewElementContent(const xmlChar *name, xmlElementContentType type) {
995 return(xmlNewDocElementContent(NULL, name, type));
999 * xmlCopyDocElementContent:
1000 * @doc: the document owning the element declaration
1001 * @cur: An element content pointer.
1003 * Build a copy of an element content description.
1005 * Returns the new xmlElementContentPtr or NULL in case of error.
1007 xmlElementContentPtr
1008 xmlCopyDocElementContent(xmlDocPtr doc, xmlElementContentPtr cur) {
1009 xmlElementContentPtr ret = NULL, prev = NULL, tmp;
1010 xmlDictPtr dict = NULL;
1012 if (cur == NULL) return(NULL);
1017 ret = (xmlElementContentPtr) xmlMalloc(sizeof(xmlElementContent));
1019 xmlVErrMemory(NULL, "malloc failed");
1022 memset(ret, 0, sizeof(xmlElementContent));
1023 ret->type = cur->type;
1024 ret->ocur = cur->ocur;
1025 if (cur->name != NULL) {
1027 ret->name = xmlDictLookup(dict, cur->name, -1);
1029 ret->name = xmlStrdup(cur->name);
1032 if (cur->prefix != NULL) {
1034 ret->prefix = xmlDictLookup(dict, cur->prefix, -1);
1036 ret->prefix = xmlStrdup(cur->prefix);
1038 if (cur->c1 != NULL)
1039 ret->c1 = xmlCopyDocElementContent(doc, cur->c1);
1040 if (ret->c1 != NULL)
1041 ret->c1->parent = ret;
1042 if (cur->c2 != NULL) {
1045 while (cur != NULL) {
1046 tmp = (xmlElementContentPtr) xmlMalloc(sizeof(xmlElementContent));
1048 xmlVErrMemory(NULL, "malloc failed");
1051 memset(tmp, 0, sizeof(xmlElementContent));
1052 tmp->type = cur->type;
1053 tmp->ocur = cur->ocur;
1055 if (cur->name != NULL) {
1057 tmp->name = xmlDictLookup(dict, cur->name, -1);
1059 tmp->name = xmlStrdup(cur->name);
1062 if (cur->prefix != NULL) {
1064 tmp->prefix = xmlDictLookup(dict, cur->prefix, -1);
1066 tmp->prefix = xmlStrdup(cur->prefix);
1068 if (cur->c1 != NULL)
1069 tmp->c1 = xmlCopyDocElementContent(doc,cur->c1);
1070 if (tmp->c1 != NULL)
1071 tmp->c1->parent = ret;
1080 * xmlCopyElementContent:
1081 * @cur: An element content pointer.
1083 * Build a copy of an element content description.
1084 * Deprecated, use xmlCopyDocElementContent instead
1086 * Returns the new xmlElementContentPtr or NULL in case of error.
1088 xmlElementContentPtr
1089 xmlCopyElementContent(xmlElementContentPtr cur) {
1090 return(xmlCopyDocElementContent(NULL, cur));
1094 * xmlFreeDocElementContent:
1095 * @doc: the document owning the element declaration
1096 * @cur: the element content tree to free
1098 * Free an element content structure. The whole subtree is removed.
1101 xmlFreeDocElementContent(xmlDocPtr doc, xmlElementContentPtr cur) {
1102 xmlElementContentPtr next;
1103 xmlDictPtr dict = NULL;
1108 while (cur != NULL) {
1110 switch (cur->type) {
1111 case XML_ELEMENT_CONTENT_PCDATA:
1112 case XML_ELEMENT_CONTENT_ELEMENT:
1113 case XML_ELEMENT_CONTENT_SEQ:
1114 case XML_ELEMENT_CONTENT_OR:
1117 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
1118 "Internal: ELEMENT content corrupted invalid type\n",
1122 if (cur->c1 != NULL) xmlFreeDocElementContent(doc, cur->c1);
1124 if ((cur->name != NULL) && (!xmlDictOwns(dict, cur->name)))
1125 xmlFree((xmlChar *) cur->name);
1126 if ((cur->prefix != NULL) && (!xmlDictOwns(dict, cur->prefix)))
1127 xmlFree((xmlChar *) cur->prefix);
1129 if (cur->name != NULL) xmlFree((xmlChar *) cur->name);
1130 if (cur->prefix != NULL) xmlFree((xmlChar *) cur->prefix);
1138 * xmlFreeElementContent:
1139 * @cur: the element content tree to free
1141 * Free an element content structure. The whole subtree is removed.
1142 * Deprecated, use xmlFreeDocElementContent instead
1145 xmlFreeElementContent(xmlElementContentPtr cur) {
1146 xmlFreeDocElementContent(NULL, cur);
1149 #ifdef LIBXML_OUTPUT_ENABLED
1151 * xmlDumpElementContent:
1152 * @buf: An XML buffer
1153 * @content: An element table
1154 * @glob: 1 if one must print the englobing parenthesis, 0 otherwise
1156 * This will dump the content of the element table as an XML DTD definition
1159 xmlDumpElementContent(xmlBufferPtr buf, xmlElementContentPtr content, int glob) {
1160 if (content == NULL) return;
1162 if (glob) xmlBufferWriteChar(buf, "(");
1163 switch (content->type) {
1164 case XML_ELEMENT_CONTENT_PCDATA:
1165 xmlBufferWriteChar(buf, "#PCDATA");
1167 case XML_ELEMENT_CONTENT_ELEMENT:
1168 if (content->prefix != NULL) {
1169 xmlBufferWriteCHAR(buf, content->prefix);
1170 xmlBufferWriteChar(buf, ":");
1172 xmlBufferWriteCHAR(buf, content->name);
1174 case XML_ELEMENT_CONTENT_SEQ:
1175 if ((content->c1->type == XML_ELEMENT_CONTENT_OR) ||
1176 (content->c1->type == XML_ELEMENT_CONTENT_SEQ))
1177 xmlDumpElementContent(buf, content->c1, 1);
1179 xmlDumpElementContent(buf, content->c1, 0);
1180 xmlBufferWriteChar(buf, " , ");
1181 if ((content->c2->type == XML_ELEMENT_CONTENT_OR) ||
1182 ((content->c2->type == XML_ELEMENT_CONTENT_SEQ) &&
1183 (content->c2->ocur != XML_ELEMENT_CONTENT_ONCE)))
1184 xmlDumpElementContent(buf, content->c2, 1);
1186 xmlDumpElementContent(buf, content->c2, 0);
1188 case XML_ELEMENT_CONTENT_OR:
1189 if ((content->c1->type == XML_ELEMENT_CONTENT_OR) ||
1190 (content->c1->type == XML_ELEMENT_CONTENT_SEQ))
1191 xmlDumpElementContent(buf, content->c1, 1);
1193 xmlDumpElementContent(buf, content->c1, 0);
1194 xmlBufferWriteChar(buf, " | ");
1195 if ((content->c2->type == XML_ELEMENT_CONTENT_SEQ) ||
1196 ((content->c2->type == XML_ELEMENT_CONTENT_OR) &&
1197 (content->c2->ocur != XML_ELEMENT_CONTENT_ONCE)))
1198 xmlDumpElementContent(buf, content->c2, 1);
1200 xmlDumpElementContent(buf, content->c2, 0);
1203 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
1204 "Internal: ELEMENT content corrupted invalid type\n",
1208 xmlBufferWriteChar(buf, ")");
1209 switch (content->ocur) {
1210 case XML_ELEMENT_CONTENT_ONCE:
1212 case XML_ELEMENT_CONTENT_OPT:
1213 xmlBufferWriteChar(buf, "?");
1215 case XML_ELEMENT_CONTENT_MULT:
1216 xmlBufferWriteChar(buf, "*");
1218 case XML_ELEMENT_CONTENT_PLUS:
1219 xmlBufferWriteChar(buf, "+");
1225 * xmlSprintfElementContent:
1226 * @buf: an output buffer
1227 * @content: An element table
1228 * @englob: 1 if one must print the englobing parenthesis, 0 otherwise
1230 * Deprecated, unsafe, use xmlSnprintfElementContent
1233 xmlSprintfElementContent(char *buf ATTRIBUTE_UNUSED,
1234 xmlElementContentPtr content ATTRIBUTE_UNUSED,
1235 int englob ATTRIBUTE_UNUSED) {
1237 #endif /* LIBXML_OUTPUT_ENABLED */
1240 * xmlSnprintfElementContent:
1241 * @buf: an output buffer
1242 * @size: the buffer size
1243 * @content: An element table
1244 * @englob: 1 if one must print the englobing parenthesis, 0 otherwise
1246 * This will dump the content of the element content definition
1247 * Intended just for the debug routine
1250 xmlSnprintfElementContent(char *buf, int size, xmlElementContentPtr content, int englob) {
1253 if (content == NULL) return;
1255 if (size - len < 50) {
1256 if ((size - len > 4) && (buf[len - 1] != '.'))
1257 strcat(buf, " ...");
1260 if (englob) strcat(buf, "(");
1261 switch (content->type) {
1262 case XML_ELEMENT_CONTENT_PCDATA:
1263 strcat(buf, "#PCDATA");
1265 case XML_ELEMENT_CONTENT_ELEMENT:
1266 if (content->prefix != NULL) {
1267 if (size - len < xmlStrlen(content->prefix) + 10) {
1268 strcat(buf, " ...");
1271 strcat(buf, (char *) content->prefix);
1274 if (size - len < xmlStrlen(content->name) + 10) {
1275 strcat(buf, " ...");
1278 if (content->name != NULL)
1279 strcat(buf, (char *) content->name);
1281 case XML_ELEMENT_CONTENT_SEQ:
1282 if ((content->c1->type == XML_ELEMENT_CONTENT_OR) ||
1283 (content->c1->type == XML_ELEMENT_CONTENT_SEQ))
1284 xmlSnprintfElementContent(buf, size, content->c1, 1);
1286 xmlSnprintfElementContent(buf, size, content->c1, 0);
1288 if (size - len < 50) {
1289 if ((size - len > 4) && (buf[len - 1] != '.'))
1290 strcat(buf, " ...");
1294 if (((content->c2->type == XML_ELEMENT_CONTENT_OR) ||
1295 (content->c2->ocur != XML_ELEMENT_CONTENT_ONCE)) &&
1296 (content->c2->type != XML_ELEMENT_CONTENT_ELEMENT))
1297 xmlSnprintfElementContent(buf, size, content->c2, 1);
1299 xmlSnprintfElementContent(buf, size, content->c2, 0);
1301 case XML_ELEMENT_CONTENT_OR:
1302 if ((content->c1->type == XML_ELEMENT_CONTENT_OR) ||
1303 (content->c1->type == XML_ELEMENT_CONTENT_SEQ))
1304 xmlSnprintfElementContent(buf, size, content->c1, 1);
1306 xmlSnprintfElementContent(buf, size, content->c1, 0);
1308 if (size - len < 50) {
1309 if ((size - len > 4) && (buf[len - 1] != '.'))
1310 strcat(buf, " ...");
1314 if (((content->c2->type == XML_ELEMENT_CONTENT_SEQ) ||
1315 (content->c2->ocur != XML_ELEMENT_CONTENT_ONCE)) &&
1316 (content->c2->type != XML_ELEMENT_CONTENT_ELEMENT))
1317 xmlSnprintfElementContent(buf, size, content->c2, 1);
1319 xmlSnprintfElementContent(buf, size, content->c2, 0);
1324 switch (content->ocur) {
1325 case XML_ELEMENT_CONTENT_ONCE:
1327 case XML_ELEMENT_CONTENT_OPT:
1330 case XML_ELEMENT_CONTENT_MULT:
1333 case XML_ELEMENT_CONTENT_PLUS:
1339 /****************************************************************
1341 * Registration of DTD declarations *
1343 ****************************************************************/
1349 * Deallocate the memory used by an element definition
1352 xmlFreeElement(xmlElementPtr elem) {
1353 if (elem == NULL) return;
1354 xmlUnlinkNode((xmlNodePtr) elem);
1355 xmlFreeDocElementContent(elem->doc, elem->content);
1356 if (elem->name != NULL)
1357 xmlFree((xmlChar *) elem->name);
1358 if (elem->prefix != NULL)
1359 xmlFree((xmlChar *) elem->prefix);
1360 #ifdef LIBXML_REGEXP_ENABLED
1361 if (elem->contModel != NULL)
1362 xmlRegFreeRegexp(elem->contModel);
1369 * xmlAddElementDecl:
1370 * @ctxt: the validation context
1371 * @dtd: pointer to the DTD
1372 * @name: the entity name
1373 * @type: the element type
1374 * @content: the element content tree or NULL
1376 * Register a new element declaration
1378 * Returns NULL if not, otherwise the entity
1381 xmlAddElementDecl(xmlValidCtxtPtr ctxt,
1382 xmlDtdPtr dtd, const xmlChar *name,
1383 xmlElementTypeVal type,
1384 xmlElementContentPtr content) {
1386 xmlElementTablePtr table;
1387 xmlAttributePtr oldAttributes = NULL;
1388 xmlChar *ns, *uqname;
1398 case XML_ELEMENT_TYPE_EMPTY:
1399 if (content != NULL) {
1400 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
1401 "xmlAddElementDecl: content != NULL for EMPTY\n",
1406 case XML_ELEMENT_TYPE_ANY:
1407 if (content != NULL) {
1408 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
1409 "xmlAddElementDecl: content != NULL for ANY\n",
1414 case XML_ELEMENT_TYPE_MIXED:
1415 if (content == NULL) {
1416 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
1417 "xmlAddElementDecl: content == NULL for MIXED\n",
1422 case XML_ELEMENT_TYPE_ELEMENT:
1423 if (content == NULL) {
1424 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
1425 "xmlAddElementDecl: content == NULL for ELEMENT\n",
1431 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
1432 "Internal: ELEMENT decl corrupted invalid type\n",
1438 * check if name is a QName
1440 uqname = xmlSplitQName2(name, &ns);
1445 * Create the Element table if needed.
1447 table = (xmlElementTablePtr) dtd->elements;
1448 if (table == NULL) {
1449 xmlDictPtr dict = NULL;
1451 if (dtd->doc != NULL)
1452 dict = dtd->doc->dict;
1453 table = xmlHashCreateDict(0, dict);
1454 dtd->elements = (void *) table;
1456 if (table == NULL) {
1458 "xmlAddElementDecl: Table creation failed!\n");
1467 * lookup old attributes inserted on an undefined element in the
1470 if ((dtd->doc != NULL) && (dtd->doc->intSubset != NULL)) {
1471 ret = xmlHashLookup2(dtd->doc->intSubset->elements, name, ns);
1472 if ((ret != NULL) && (ret->etype == XML_ELEMENT_TYPE_UNDEFINED)) {
1473 oldAttributes = ret->attributes;
1474 ret->attributes = NULL;
1475 xmlHashRemoveEntry2(dtd->doc->intSubset->elements, name, ns, NULL);
1476 xmlFreeElement(ret);
1481 * The element may already be present if one of its attribute
1482 * was registered first
1484 ret = xmlHashLookup2(table, name, ns);
1486 if (ret->etype != XML_ELEMENT_TYPE_UNDEFINED) {
1487 #ifdef LIBXML_VALID_ENABLED
1489 * The element is already defined in this DTD.
1491 xmlErrValidNode(ctxt, (xmlNodePtr) dtd, XML_DTD_ELEM_REDEFINED,
1492 "Redefinition of element %s\n",
1494 #endif /* LIBXML_VALID_ENABLED */
1506 ret = (xmlElementPtr) xmlMalloc(sizeof(xmlElement));
1508 xmlVErrMemory(ctxt, "malloc failed");
1515 memset(ret, 0, sizeof(xmlElement));
1516 ret->type = XML_ELEMENT_DECL;
1519 * fill the structure.
1521 ret->name = xmlStrdup(name);
1522 if (ret->name == NULL) {
1523 xmlVErrMemory(ctxt, "malloc failed");
1535 * Insertion must not fail
1537 if (xmlHashAddEntry2(table, name, ns, ret)) {
1538 #ifdef LIBXML_VALID_ENABLED
1540 * The element is already defined in this DTD.
1542 xmlErrValidNode(ctxt, (xmlNodePtr) dtd, XML_DTD_ELEM_REDEFINED,
1543 "Redefinition of element %s\n",
1545 #endif /* LIBXML_VALID_ENABLED */
1546 xmlFreeElement(ret);
1552 * For new element, may have attributes from earlier
1553 * definition in internal subset
1555 ret->attributes = oldAttributes;
1559 * Finish to fill the structure.
1563 * Avoid a stupid copy when called by the parser
1564 * and flag it by setting a special parent value
1565 * so the parser doesn't unallocate it.
1567 if ((ctxt != NULL) &&
1568 ((ctxt->finishDtd == XML_CTXT_FINISH_DTD_0) ||
1569 (ctxt->finishDtd == XML_CTXT_FINISH_DTD_1))) {
1570 ret->content = content;
1571 if (content != NULL)
1572 content->parent = (xmlElementContentPtr) 1;
1574 ret->content = xmlCopyDocElementContent(dtd->doc, content);
1578 * Link it to the DTD
1581 ret->doc = dtd->doc;
1582 if (dtd->last == NULL) {
1583 dtd->children = dtd->last = (xmlNodePtr) ret;
1585 dtd->last->next = (xmlNodePtr) ret;
1586 ret->prev = dtd->last;
1587 dtd->last = (xmlNodePtr) ret;
1595 * xmlFreeElementTable:
1596 * @table: An element table
1598 * Deallocate the memory used by an element hash table.
1601 xmlFreeElementTable(xmlElementTablePtr table) {
1602 xmlHashFree(table, (xmlHashDeallocator) xmlFreeElement);
1605 #ifdef LIBXML_TREE_ENABLED
1610 * Build a copy of an element.
1612 * Returns the new xmlElementPtr or NULL in case of error.
1614 static xmlElementPtr
1615 xmlCopyElement(xmlElementPtr elem) {
1618 cur = (xmlElementPtr) xmlMalloc(sizeof(xmlElement));
1620 xmlVErrMemory(NULL, "malloc failed");
1623 memset(cur, 0, sizeof(xmlElement));
1624 cur->type = XML_ELEMENT_DECL;
1625 cur->etype = elem->etype;
1626 if (elem->name != NULL)
1627 cur->name = xmlStrdup(elem->name);
1630 if (elem->prefix != NULL)
1631 cur->prefix = xmlStrdup(elem->prefix);
1634 cur->content = xmlCopyElementContent(elem->content);
1635 /* TODO : rebuild the attribute list on the copy */
1636 cur->attributes = NULL;
1641 * xmlCopyElementTable:
1642 * @table: An element table
1644 * Build a copy of an element table.
1646 * Returns the new xmlElementTablePtr or NULL in case of error.
1649 xmlCopyElementTable(xmlElementTablePtr table) {
1650 return((xmlElementTablePtr) xmlHashCopy(table,
1651 (xmlHashCopier) xmlCopyElement));
1653 #endif /* LIBXML_TREE_ENABLED */
1655 #ifdef LIBXML_OUTPUT_ENABLED
1657 * xmlDumpElementDecl:
1658 * @buf: the XML buffer output
1659 * @elem: An element table
1661 * This will dump the content of the element declaration as an XML
1665 xmlDumpElementDecl(xmlBufferPtr buf, xmlElementPtr elem) {
1666 if ((buf == NULL) || (elem == NULL))
1668 switch (elem->etype) {
1669 case XML_ELEMENT_TYPE_EMPTY:
1670 xmlBufferWriteChar(buf, "<!ELEMENT ");
1671 if (elem->prefix != NULL) {
1672 xmlBufferWriteCHAR(buf, elem->prefix);
1673 xmlBufferWriteChar(buf, ":");
1675 xmlBufferWriteCHAR(buf, elem->name);
1676 xmlBufferWriteChar(buf, " EMPTY>\n");
1678 case XML_ELEMENT_TYPE_ANY:
1679 xmlBufferWriteChar(buf, "<!ELEMENT ");
1680 if (elem->prefix != NULL) {
1681 xmlBufferWriteCHAR(buf, elem->prefix);
1682 xmlBufferWriteChar(buf, ":");
1684 xmlBufferWriteCHAR(buf, elem->name);
1685 xmlBufferWriteChar(buf, " ANY>\n");
1687 case XML_ELEMENT_TYPE_MIXED:
1688 xmlBufferWriteChar(buf, "<!ELEMENT ");
1689 if (elem->prefix != NULL) {
1690 xmlBufferWriteCHAR(buf, elem->prefix);
1691 xmlBufferWriteChar(buf, ":");
1693 xmlBufferWriteCHAR(buf, elem->name);
1694 xmlBufferWriteChar(buf, " ");
1695 xmlDumpElementContent(buf, elem->content, 1);
1696 xmlBufferWriteChar(buf, ">\n");
1698 case XML_ELEMENT_TYPE_ELEMENT:
1699 xmlBufferWriteChar(buf, "<!ELEMENT ");
1700 if (elem->prefix != NULL) {
1701 xmlBufferWriteCHAR(buf, elem->prefix);
1702 xmlBufferWriteChar(buf, ":");
1704 xmlBufferWriteCHAR(buf, elem->name);
1705 xmlBufferWriteChar(buf, " ");
1706 xmlDumpElementContent(buf, elem->content, 1);
1707 xmlBufferWriteChar(buf, ">\n");
1710 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
1711 "Internal: ELEMENT struct corrupted invalid type\n",
1717 * xmlDumpElementDeclScan:
1718 * @elem: An element table
1719 * @buf: the XML buffer output
1721 * This routine is used by the hash scan function. It just reverses
1725 xmlDumpElementDeclScan(xmlElementPtr elem, xmlBufferPtr buf) {
1726 xmlDumpElementDecl(buf, elem);
1730 * xmlDumpElementTable:
1731 * @buf: the XML buffer output
1732 * @table: An element table
1734 * This will dump the content of the element table as an XML DTD definition
1737 xmlDumpElementTable(xmlBufferPtr buf, xmlElementTablePtr table) {
1738 if ((buf == NULL) || (table == NULL))
1740 xmlHashScan(table, (xmlHashScanner) xmlDumpElementDeclScan, buf);
1742 #endif /* LIBXML_OUTPUT_ENABLED */
1745 * xmlCreateEnumeration:
1746 * @name: the enumeration name or NULL
1748 * create and initialize an enumeration attribute node.
1750 * Returns the xmlEnumerationPtr just created or NULL in case
1754 xmlCreateEnumeration(const xmlChar *name) {
1755 xmlEnumerationPtr ret;
1757 ret = (xmlEnumerationPtr) xmlMalloc(sizeof(xmlEnumeration));
1759 xmlVErrMemory(NULL, "malloc failed");
1762 memset(ret, 0, sizeof(xmlEnumeration));
1765 ret->name = xmlStrdup(name);
1770 * xmlFreeEnumeration:
1771 * @cur: the tree to free.
1773 * free an enumeration attribute node (recursive).
1776 xmlFreeEnumeration(xmlEnumerationPtr cur) {
1777 if (cur == NULL) return;
1779 if (cur->next != NULL) xmlFreeEnumeration(cur->next);
1781 if (cur->name != NULL) xmlFree((xmlChar *) cur->name);
1785 #ifdef LIBXML_TREE_ENABLED
1787 * xmlCopyEnumeration:
1788 * @cur: the tree to copy.
1790 * Copy an enumeration attribute node (recursive).
1792 * Returns the xmlEnumerationPtr just created or NULL in case
1796 xmlCopyEnumeration(xmlEnumerationPtr cur) {
1797 xmlEnumerationPtr ret;
1799 if (cur == NULL) return(NULL);
1800 ret = xmlCreateEnumeration((xmlChar *) cur->name);
1802 if (cur->next != NULL) ret->next = xmlCopyEnumeration(cur->next);
1803 else ret->next = NULL;
1807 #endif /* LIBXML_TREE_ENABLED */
1809 #ifdef LIBXML_OUTPUT_ENABLED
1811 * xmlDumpEnumeration:
1812 * @buf: the XML buffer output
1813 * @enum: An enumeration
1815 * This will dump the content of the enumeration
1818 xmlDumpEnumeration(xmlBufferPtr buf, xmlEnumerationPtr cur) {
1819 if ((buf == NULL) || (cur == NULL))
1822 xmlBufferWriteCHAR(buf, cur->name);
1823 if (cur->next == NULL)
1824 xmlBufferWriteChar(buf, ")");
1826 xmlBufferWriteChar(buf, " | ");
1827 xmlDumpEnumeration(buf, cur->next);
1830 #endif /* LIBXML_OUTPUT_ENABLED */
1832 #ifdef LIBXML_VALID_ENABLED
1834 * xmlScanIDAttributeDecl:
1835 * @ctxt: the validation context
1836 * @elem: the element name
1837 * @err: whether to raise errors here
1839 * Verify that the element don't have too many ID attributes
1842 * Returns the number of ID attributes found.
1845 xmlScanIDAttributeDecl(xmlValidCtxtPtr ctxt, xmlElementPtr elem, int err) {
1846 xmlAttributePtr cur;
1849 if (elem == NULL) return(0);
1850 cur = elem->attributes;
1851 while (cur != NULL) {
1852 if (cur->atype == XML_ATTRIBUTE_ID) {
1854 if ((ret > 1) && (err))
1855 xmlErrValidNode(ctxt, (xmlNodePtr) elem, XML_DTD_MULTIPLE_ID,
1856 "Element %s has too many ID attributes defined : %s\n",
1857 elem->name, cur->name, NULL);
1863 #endif /* LIBXML_VALID_ENABLED */
1867 * @elem: An attribute
1869 * Deallocate the memory used by an attribute definition
1872 xmlFreeAttribute(xmlAttributePtr attr) {
1875 if (attr == NULL) return;
1876 if (attr->doc != NULL)
1877 dict = attr->doc->dict;
1880 xmlUnlinkNode((xmlNodePtr) attr);
1881 if (attr->tree != NULL)
1882 xmlFreeEnumeration(attr->tree);
1884 if ((attr->elem != NULL) && (!xmlDictOwns(dict, attr->elem)))
1885 xmlFree((xmlChar *) attr->elem);
1886 if ((attr->name != NULL) && (!xmlDictOwns(dict, attr->name)))
1887 xmlFree((xmlChar *) attr->name);
1888 if ((attr->prefix != NULL) && (!xmlDictOwns(dict, attr->prefix)))
1889 xmlFree((xmlChar *) attr->prefix);
1890 if ((attr->defaultValue != NULL) &&
1891 (!xmlDictOwns(dict, attr->defaultValue)))
1892 xmlFree((xmlChar *) attr->defaultValue);
1894 if (attr->elem != NULL)
1895 xmlFree((xmlChar *) attr->elem);
1896 if (attr->name != NULL)
1897 xmlFree((xmlChar *) attr->name);
1898 if (attr->defaultValue != NULL)
1899 xmlFree((xmlChar *) attr->defaultValue);
1900 if (attr->prefix != NULL)
1901 xmlFree((xmlChar *) attr->prefix);
1908 * xmlAddAttributeDecl:
1909 * @ctxt: the validation context
1910 * @dtd: pointer to the DTD
1911 * @elem: the element name
1912 * @name: the attribute name
1913 * @ns: the attribute namespace prefix
1914 * @type: the attribute type
1915 * @def: the attribute default type
1916 * @defaultValue: the attribute default value
1917 * @tree: if it's an enumeration, the associated list
1919 * Register a new attribute declaration
1920 * Note that @tree becomes the ownership of the DTD
1922 * Returns NULL if not new, otherwise the attribute decl
1925 xmlAddAttributeDecl(xmlValidCtxtPtr ctxt,
1926 xmlDtdPtr dtd, const xmlChar *elem,
1927 const xmlChar *name, const xmlChar *ns,
1928 xmlAttributeType type, xmlAttributeDefault def,
1929 const xmlChar *defaultValue, xmlEnumerationPtr tree) {
1930 xmlAttributePtr ret;
1931 xmlAttributeTablePtr table;
1932 xmlElementPtr elemDef;
1933 xmlDictPtr dict = NULL;
1936 xmlFreeEnumeration(tree);
1940 xmlFreeEnumeration(tree);
1944 xmlFreeEnumeration(tree);
1947 if (dtd->doc != NULL)
1948 dict = dtd->doc->dict;
1950 #ifdef LIBXML_VALID_ENABLED
1952 * Check the type and possibly the default value.
1955 case XML_ATTRIBUTE_CDATA:
1957 case XML_ATTRIBUTE_ID:
1959 case XML_ATTRIBUTE_IDREF:
1961 case XML_ATTRIBUTE_IDREFS:
1963 case XML_ATTRIBUTE_ENTITY:
1965 case XML_ATTRIBUTE_ENTITIES:
1967 case XML_ATTRIBUTE_NMTOKEN:
1969 case XML_ATTRIBUTE_NMTOKENS:
1971 case XML_ATTRIBUTE_ENUMERATION:
1973 case XML_ATTRIBUTE_NOTATION:
1976 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
1977 "Internal: ATTRIBUTE struct corrupted invalid type\n",
1979 xmlFreeEnumeration(tree);
1982 if ((defaultValue != NULL) &&
1983 (!xmlValidateAttributeValueInternal(dtd->doc, type, defaultValue))) {
1984 xmlErrValidNode(ctxt, (xmlNodePtr) dtd, XML_DTD_ATTRIBUTE_DEFAULT,
1985 "Attribute %s of %s: invalid default value\n",
1986 elem, name, defaultValue);
1987 defaultValue = NULL;
1991 #endif /* LIBXML_VALID_ENABLED */
1994 * Check first that an attribute defined in the external subset wasn't
1995 * already defined in the internal subset
1997 if ((dtd->doc != NULL) && (dtd->doc->extSubset == dtd) &&
1998 (dtd->doc->intSubset != NULL) &&
1999 (dtd->doc->intSubset->attributes != NULL)) {
2000 ret = xmlHashLookup3(dtd->doc->intSubset->attributes, name, ns, elem);
2002 xmlFreeEnumeration(tree);
2008 * Create the Attribute table if needed.
2010 table = (xmlAttributeTablePtr) dtd->attributes;
2011 if (table == NULL) {
2012 table = xmlHashCreateDict(0, dict);
2013 dtd->attributes = (void *) table;
2015 if (table == NULL) {
2017 "xmlAddAttributeDecl: Table creation failed!\n");
2018 xmlFreeEnumeration(tree);
2023 ret = (xmlAttributePtr) xmlMalloc(sizeof(xmlAttribute));
2025 xmlVErrMemory(ctxt, "malloc failed");
2026 xmlFreeEnumeration(tree);
2029 memset(ret, 0, sizeof(xmlAttribute));
2030 ret->type = XML_ATTRIBUTE_DECL;
2033 * fill the structure.
2037 * doc must be set before possible error causes call
2038 * to xmlFreeAttribute (because it's used to check on
2041 ret->doc = dtd->doc;
2043 ret->name = xmlDictLookup(dict, name, -1);
2044 ret->prefix = xmlDictLookup(dict, ns, -1);
2045 ret->elem = xmlDictLookup(dict, elem, -1);
2047 ret->name = xmlStrdup(name);
2048 ret->prefix = xmlStrdup(ns);
2049 ret->elem = xmlStrdup(elem);
2053 if (defaultValue != NULL) {
2055 ret->defaultValue = xmlDictLookup(dict, defaultValue, -1);
2057 ret->defaultValue = xmlStrdup(defaultValue);
2062 * Search the DTD for previous declarations of the ATTLIST
2064 if (xmlHashAddEntry3(table, ret->name, ret->prefix, ret->elem, ret) < 0) {
2065 #ifdef LIBXML_VALID_ENABLED
2067 * The attribute is already defined in this DTD.
2069 xmlErrValidWarning(ctxt, (xmlNodePtr) dtd, XML_DTD_ATTRIBUTE_REDEFINED,
2070 "Attribute %s of element %s: already defined\n",
2072 #endif /* LIBXML_VALID_ENABLED */
2073 xmlFreeAttribute(ret);
2079 * Multiple ID per element
2081 elemDef = xmlGetDtdElementDesc2(dtd, elem, 1);
2082 if (elemDef != NULL) {
2084 #ifdef LIBXML_VALID_ENABLED
2085 if ((type == XML_ATTRIBUTE_ID) &&
2086 (xmlScanIDAttributeDecl(NULL, elemDef, 1) != 0)) {
2087 xmlErrValidNode(ctxt, (xmlNodePtr) dtd, XML_DTD_MULTIPLE_ID,
2088 "Element %s has too may ID attributes defined : %s\n",
2093 #endif /* LIBXML_VALID_ENABLED */
2096 * Insert namespace default def first they need to be
2099 if ((xmlStrEqual(ret->name, BAD_CAST "xmlns")) ||
2100 ((ret->prefix != NULL &&
2101 (xmlStrEqual(ret->prefix, BAD_CAST "xmlns"))))) {
2102 ret->nexth = elemDef->attributes;
2103 elemDef->attributes = ret;
2105 xmlAttributePtr tmp = elemDef->attributes;
2107 while ((tmp != NULL) &&
2108 ((xmlStrEqual(tmp->name, BAD_CAST "xmlns")) ||
2109 ((ret->prefix != NULL &&
2110 (xmlStrEqual(ret->prefix, BAD_CAST "xmlns")))))) {
2111 if (tmp->nexth == NULL)
2116 ret->nexth = tmp->nexth;
2119 ret->nexth = elemDef->attributes;
2120 elemDef->attributes = ret;
2126 * Link it to the DTD
2129 if (dtd->last == NULL) {
2130 dtd->children = dtd->last = (xmlNodePtr) ret;
2132 dtd->last->next = (xmlNodePtr) ret;
2133 ret->prev = dtd->last;
2134 dtd->last = (xmlNodePtr) ret;
2140 * xmlFreeAttributeTable:
2141 * @table: An attribute table
2143 * Deallocate the memory used by an entities hash table.
2146 xmlFreeAttributeTable(xmlAttributeTablePtr table) {
2147 xmlHashFree(table, (xmlHashDeallocator) xmlFreeAttribute);
2150 #ifdef LIBXML_TREE_ENABLED
2153 * @attr: An attribute
2155 * Build a copy of an attribute.
2157 * Returns the new xmlAttributePtr or NULL in case of error.
2159 static xmlAttributePtr
2160 xmlCopyAttribute(xmlAttributePtr attr) {
2161 xmlAttributePtr cur;
2163 cur = (xmlAttributePtr) xmlMalloc(sizeof(xmlAttribute));
2165 xmlVErrMemory(NULL, "malloc failed");
2168 memset(cur, 0, sizeof(xmlAttribute));
2169 cur->type = XML_ATTRIBUTE_DECL;
2170 cur->atype = attr->atype;
2171 cur->def = attr->def;
2172 cur->tree = xmlCopyEnumeration(attr->tree);
2173 if (attr->elem != NULL)
2174 cur->elem = xmlStrdup(attr->elem);
2175 if (attr->name != NULL)
2176 cur->name = xmlStrdup(attr->name);
2177 if (attr->prefix != NULL)
2178 cur->prefix = xmlStrdup(attr->prefix);
2179 if (attr->defaultValue != NULL)
2180 cur->defaultValue = xmlStrdup(attr->defaultValue);
2185 * xmlCopyAttributeTable:
2186 * @table: An attribute table
2188 * Build a copy of an attribute table.
2190 * Returns the new xmlAttributeTablePtr or NULL in case of error.
2192 xmlAttributeTablePtr
2193 xmlCopyAttributeTable(xmlAttributeTablePtr table) {
2194 return((xmlAttributeTablePtr) xmlHashCopy(table,
2195 (xmlHashCopier) xmlCopyAttribute));
2197 #endif /* LIBXML_TREE_ENABLED */
2199 #ifdef LIBXML_OUTPUT_ENABLED
2201 * xmlDumpAttributeDecl:
2202 * @buf: the XML buffer output
2203 * @attr: An attribute declaration
2205 * This will dump the content of the attribute declaration as an XML
2209 xmlDumpAttributeDecl(xmlBufferPtr buf, xmlAttributePtr attr) {
2210 if ((buf == NULL) || (attr == NULL))
2212 xmlBufferWriteChar(buf, "<!ATTLIST ");
2213 xmlBufferWriteCHAR(buf, attr->elem);
2214 xmlBufferWriteChar(buf, " ");
2215 if (attr->prefix != NULL) {
2216 xmlBufferWriteCHAR(buf, attr->prefix);
2217 xmlBufferWriteChar(buf, ":");
2219 xmlBufferWriteCHAR(buf, attr->name);
2220 switch (attr->atype) {
2221 case XML_ATTRIBUTE_CDATA:
2222 xmlBufferWriteChar(buf, " CDATA");
2224 case XML_ATTRIBUTE_ID:
2225 xmlBufferWriteChar(buf, " ID");
2227 case XML_ATTRIBUTE_IDREF:
2228 xmlBufferWriteChar(buf, " IDREF");
2230 case XML_ATTRIBUTE_IDREFS:
2231 xmlBufferWriteChar(buf, " IDREFS");
2233 case XML_ATTRIBUTE_ENTITY:
2234 xmlBufferWriteChar(buf, " ENTITY");
2236 case XML_ATTRIBUTE_ENTITIES:
2237 xmlBufferWriteChar(buf, " ENTITIES");
2239 case XML_ATTRIBUTE_NMTOKEN:
2240 xmlBufferWriteChar(buf, " NMTOKEN");
2242 case XML_ATTRIBUTE_NMTOKENS:
2243 xmlBufferWriteChar(buf, " NMTOKENS");
2245 case XML_ATTRIBUTE_ENUMERATION:
2246 xmlBufferWriteChar(buf, " (");
2247 xmlDumpEnumeration(buf, attr->tree);
2249 case XML_ATTRIBUTE_NOTATION:
2250 xmlBufferWriteChar(buf, " NOTATION (");
2251 xmlDumpEnumeration(buf, attr->tree);
2254 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
2255 "Internal: ATTRIBUTE struct corrupted invalid type\n",
2258 switch (attr->def) {
2259 case XML_ATTRIBUTE_NONE:
2261 case XML_ATTRIBUTE_REQUIRED:
2262 xmlBufferWriteChar(buf, " #REQUIRED");
2264 case XML_ATTRIBUTE_IMPLIED:
2265 xmlBufferWriteChar(buf, " #IMPLIED");
2267 case XML_ATTRIBUTE_FIXED:
2268 xmlBufferWriteChar(buf, " #FIXED");
2271 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
2272 "Internal: ATTRIBUTE struct corrupted invalid def\n",
2275 if (attr->defaultValue != NULL) {
2276 xmlBufferWriteChar(buf, " ");
2277 xmlBufferWriteQuotedString(buf, attr->defaultValue);
2279 xmlBufferWriteChar(buf, ">\n");
2283 * xmlDumpAttributeDeclScan:
2284 * @attr: An attribute declaration
2285 * @buf: the XML buffer output
2287 * This is used with the hash scan function - just reverses arguments
2290 xmlDumpAttributeDeclScan(xmlAttributePtr attr, xmlBufferPtr buf) {
2291 xmlDumpAttributeDecl(buf, attr);
2295 * xmlDumpAttributeTable:
2296 * @buf: the XML buffer output
2297 * @table: An attribute table
2299 * This will dump the content of the attribute table as an XML DTD definition
2302 xmlDumpAttributeTable(xmlBufferPtr buf, xmlAttributeTablePtr table) {
2303 if ((buf == NULL) || (table == NULL))
2305 xmlHashScan(table, (xmlHashScanner) xmlDumpAttributeDeclScan, buf);
2307 #endif /* LIBXML_OUTPUT_ENABLED */
2309 /************************************************************************
2313 ************************************************************************/
2318 * Deallocate the memory used by an notation definition
2321 xmlFreeNotation(xmlNotationPtr nota) {
2322 if (nota == NULL) return;
2323 if (nota->name != NULL)
2324 xmlFree((xmlChar *) nota->name);
2325 if (nota->PublicID != NULL)
2326 xmlFree((xmlChar *) nota->PublicID);
2327 if (nota->SystemID != NULL)
2328 xmlFree((xmlChar *) nota->SystemID);
2334 * xmlAddNotationDecl:
2335 * @dtd: pointer to the DTD
2336 * @ctxt: the validation context
2337 * @name: the entity name
2338 * @PublicID: the public identifier or NULL
2339 * @SystemID: the system identifier or NULL
2341 * Register a new notation declaration
2343 * Returns NULL if not, otherwise the entity
2346 xmlAddNotationDecl(xmlValidCtxtPtr ctxt, xmlDtdPtr dtd,
2347 const xmlChar *name,
2348 const xmlChar *PublicID, const xmlChar *SystemID) {
2350 xmlNotationTablePtr table;
2358 if ((PublicID == NULL) && (SystemID == NULL)) {
2363 * Create the Notation table if needed.
2365 table = (xmlNotationTablePtr) dtd->notations;
2366 if (table == NULL) {
2367 xmlDictPtr dict = NULL;
2368 if (dtd->doc != NULL)
2369 dict = dtd->doc->dict;
2371 dtd->notations = table = xmlHashCreateDict(0, dict);
2373 if (table == NULL) {
2375 "xmlAddNotationDecl: Table creation failed!\n");
2379 ret = (xmlNotationPtr) xmlMalloc(sizeof(xmlNotation));
2381 xmlVErrMemory(ctxt, "malloc failed");
2384 memset(ret, 0, sizeof(xmlNotation));
2387 * fill the structure.
2389 ret->name = xmlStrdup(name);
2390 if (SystemID != NULL)
2391 ret->SystemID = xmlStrdup(SystemID);
2392 if (PublicID != NULL)
2393 ret->PublicID = xmlStrdup(PublicID);
2397 * Check the DTD for previous declarations of the ATTLIST
2399 if (xmlHashAddEntry(table, name, ret)) {
2400 #ifdef LIBXML_VALID_ENABLED
2401 xmlErrValid(NULL, XML_DTD_NOTATION_REDEFINED,
2402 "xmlAddNotationDecl: %s already defined\n",
2403 (const char *) name);
2404 #endif /* LIBXML_VALID_ENABLED */
2405 xmlFreeNotation(ret);
2412 * xmlFreeNotationTable:
2413 * @table: An notation table
2415 * Deallocate the memory used by an entities hash table.
2418 xmlFreeNotationTable(xmlNotationTablePtr table) {
2419 xmlHashFree(table, (xmlHashDeallocator) xmlFreeNotation);
2422 #ifdef LIBXML_TREE_ENABLED
2427 * Build a copy of a notation.
2429 * Returns the new xmlNotationPtr or NULL in case of error.
2431 static xmlNotationPtr
2432 xmlCopyNotation(xmlNotationPtr nota) {
2435 cur = (xmlNotationPtr) xmlMalloc(sizeof(xmlNotation));
2437 xmlVErrMemory(NULL, "malloc failed");
2440 if (nota->name != NULL)
2441 cur->name = xmlStrdup(nota->name);
2444 if (nota->PublicID != NULL)
2445 cur->PublicID = xmlStrdup(nota->PublicID);
2447 cur->PublicID = NULL;
2448 if (nota->SystemID != NULL)
2449 cur->SystemID = xmlStrdup(nota->SystemID);
2451 cur->SystemID = NULL;
2456 * xmlCopyNotationTable:
2457 * @table: A notation table
2459 * Build a copy of a notation table.
2461 * Returns the new xmlNotationTablePtr or NULL in case of error.
2464 xmlCopyNotationTable(xmlNotationTablePtr table) {
2465 return((xmlNotationTablePtr) xmlHashCopy(table,
2466 (xmlHashCopier) xmlCopyNotation));
2468 #endif /* LIBXML_TREE_ENABLED */
2470 #ifdef LIBXML_OUTPUT_ENABLED
2472 * xmlDumpNotationDecl:
2473 * @buf: the XML buffer output
2474 * @nota: A notation declaration
2476 * This will dump the content the notation declaration as an XML DTD definition
2479 xmlDumpNotationDecl(xmlBufferPtr buf, xmlNotationPtr nota) {
2480 if ((buf == NULL) || (nota == NULL))
2482 xmlBufferWriteChar(buf, "<!NOTATION ");
2483 xmlBufferWriteCHAR(buf, nota->name);
2484 if (nota->PublicID != NULL) {
2485 xmlBufferWriteChar(buf, " PUBLIC ");
2486 xmlBufferWriteQuotedString(buf, nota->PublicID);
2487 if (nota->SystemID != NULL) {
2488 xmlBufferWriteChar(buf, " ");
2489 xmlBufferWriteQuotedString(buf, nota->SystemID);
2492 xmlBufferWriteChar(buf, " SYSTEM ");
2493 xmlBufferWriteQuotedString(buf, nota->SystemID);
2495 xmlBufferWriteChar(buf, " >\n");
2499 * xmlDumpNotationDeclScan:
2500 * @nota: A notation declaration
2501 * @buf: the XML buffer output
2503 * This is called with the hash scan function, and just reverses args
2506 xmlDumpNotationDeclScan(xmlNotationPtr nota, xmlBufferPtr buf) {
2507 xmlDumpNotationDecl(buf, nota);
2511 * xmlDumpNotationTable:
2512 * @buf: the XML buffer output
2513 * @table: A notation table
2515 * This will dump the content of the notation table as an XML DTD definition
2518 xmlDumpNotationTable(xmlBufferPtr buf, xmlNotationTablePtr table) {
2519 if ((buf == NULL) || (table == NULL))
2521 xmlHashScan(table, (xmlHashScanner) xmlDumpNotationDeclScan, buf);
2523 #endif /* LIBXML_OUTPUT_ENABLED */
2525 /************************************************************************
2529 ************************************************************************/
2534 * Free a string if it is not owned by the "dict" dictionnary in the
2537 #define DICT_FREE(str) \
2538 if ((str) && ((!dict) || \
2539 (xmlDictOwns(dict, (const xmlChar *)(str)) == 0))) \
2540 xmlFree((char *)(str));
2546 * Deallocate the memory used by an id definition
2549 xmlFreeID(xmlIDPtr id) {
2550 xmlDictPtr dict = NULL;
2552 if (id == NULL) return;
2554 if (id->doc != NULL)
2555 dict = id->doc->dict;
2557 if (id->value != NULL)
2558 DICT_FREE(id->value)
2559 if (id->name != NULL)
2567 * @ctxt: the validation context
2568 * @doc: pointer to the document
2569 * @value: the value name
2570 * @attr: the attribute holding the ID
2572 * Register a new id declaration
2574 * Returns NULL if not, otherwise the new xmlIDPtr
2577 xmlAddID(xmlValidCtxtPtr ctxt, xmlDocPtr doc, const xmlChar *value,
2580 xmlIDTablePtr table;
2585 if (value == NULL) {
2593 * Create the ID table if needed.
2595 table = (xmlIDTablePtr) doc->ids;
2596 if (table == NULL) {
2597 doc->ids = table = xmlHashCreateDict(0, doc->dict);
2599 if (table == NULL) {
2601 "xmlAddID: Table creation failed!\n");
2605 ret = (xmlIDPtr) xmlMalloc(sizeof(xmlID));
2607 xmlVErrMemory(ctxt, "malloc failed");
2612 * fill the structure.
2614 ret->value = xmlStrdup(value);
2616 if ((ctxt != NULL) && (ctxt->vstateNr != 0)) {
2618 * Operating in streaming mode, attr is gonna disapear
2620 if (doc->dict != NULL)
2621 ret->name = xmlDictLookup(doc->dict, attr->name, -1);
2623 ret->name = xmlStrdup(attr->name);
2629 ret->lineno = xmlGetLineNo(attr->parent);
2631 if (xmlHashAddEntry(table, value, ret) < 0) {
2632 #ifdef LIBXML_VALID_ENABLED
2634 * The id is already defined in this DTD.
2636 if ((ctxt != NULL) && (ctxt->error != NULL)) {
2637 xmlErrValidNode(ctxt, attr->parent, XML_DTD_ID_REDEFINED,
2638 "ID %s already defined\n",
2641 #endif /* LIBXML_VALID_ENABLED */
2646 attr->atype = XML_ATTRIBUTE_ID;
2652 * @table: An id table
2654 * Deallocate the memory used by an ID hash table.
2657 xmlFreeIDTable(xmlIDTablePtr table) {
2658 xmlHashFree(table, (xmlHashDeallocator) xmlFreeID);
2663 * @doc: the document
2664 * @elem: the element carrying the attribute
2665 * @attr: the attribute
2667 * Determine whether an attribute is of type ID. In case we have DTD(s)
2668 * then this is done if DTD loading has been requested. In the case
2669 * of HTML documents parsed with the HTML parser, then ID detection is
2670 * done systematically.
2672 * Returns 0 or 1 depending on the lookup result
2675 xmlIsID(xmlDocPtr doc, xmlNodePtr elem, xmlAttrPtr attr) {
2676 if ((attr == NULL) || (attr->name == NULL)) return(0);
2677 if ((attr->ns != NULL) && (attr->ns->prefix != NULL) &&
2678 (!strcmp((char *) attr->name, "id")) &&
2679 (!strcmp((char *) attr->ns->prefix, "xml")))
2681 if (doc == NULL) return(0);
2682 if ((doc->intSubset == NULL) && (doc->extSubset == NULL) &&
2683 (doc->type != XML_HTML_DOCUMENT_NODE)) {
2685 } else if (doc->type == XML_HTML_DOCUMENT_NODE) {
2686 if ((xmlStrEqual(BAD_CAST "id", attr->name)) ||
2687 ((xmlStrEqual(BAD_CAST "name", attr->name)) &&
2688 ((elem == NULL) || (xmlStrEqual(elem->name, BAD_CAST "a")))))
2691 } else if (elem == NULL) {
2694 xmlAttributePtr attrDecl = NULL;
2696 xmlChar felem[50], fattr[50];
2697 xmlChar *fullelemname, *fullattrname;
2699 fullelemname = (elem->ns != NULL && elem->ns->prefix != NULL) ?
2700 xmlBuildQName(elem->name, elem->ns->prefix, felem, 50) :
2701 (xmlChar *)elem->name;
2703 fullattrname = (attr->ns != NULL && attr->ns->prefix != NULL) ?
2704 xmlBuildQName(attr->name, attr->ns->prefix, fattr, 50) :
2705 (xmlChar *)attr->name;
2707 if (fullelemname != NULL && fullattrname != NULL) {
2708 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, fullelemname,
2710 if ((attrDecl == NULL) && (doc->extSubset != NULL))
2711 attrDecl = xmlGetDtdAttrDesc(doc->extSubset, fullelemname,
2715 if ((fullattrname != fattr) && (fullattrname != attr->name))
2716 xmlFree(fullattrname);
2717 if ((fullelemname != felem) && (fullelemname != elem->name))
2718 xmlFree(fullelemname);
2720 if ((attrDecl != NULL) && (attrDecl->atype == XML_ATTRIBUTE_ID))
2728 * @doc: the document
2729 * @attr: the attribute
2731 * Remove the given attribute from the ID table maintained internally.
2733 * Returns -1 if the lookup failed and 0 otherwise
2736 xmlRemoveID(xmlDocPtr doc, xmlAttrPtr attr) {
2737 xmlIDTablePtr table;
2741 if (doc == NULL) return(-1);
2742 if (attr == NULL) return(-1);
2743 table = (xmlIDTablePtr) doc->ids;
2749 ID = xmlNodeListGetString(doc, attr->children, 1);
2752 id = xmlHashLookup(table, ID);
2753 if (id == NULL || id->attr != attr) {
2757 xmlHashRemoveEntry(table, ID, (xmlHashDeallocator) xmlFreeID);
2765 * @doc: pointer to the document
2768 * Search the attribute declaring the given ID
2770 * Returns NULL if not found, otherwise the xmlAttrPtr defining the ID
2773 xmlGetID(xmlDocPtr doc, const xmlChar *ID) {
2774 xmlIDTablePtr table;
2785 table = (xmlIDTablePtr) doc->ids;
2789 id = xmlHashLookup(table, ID);
2792 if (id->attr == NULL) {
2794 * We are operating on a stream, return a well known reference
2795 * since the attribute node doesn't exist anymore
2797 return((xmlAttrPtr) doc);
2802 /************************************************************************
2806 ************************************************************************/
2807 typedef struct xmlRemoveMemo_t
2813 typedef xmlRemoveMemo *xmlRemoveMemoPtr;
2815 typedef struct xmlValidateMemo_t
2817 xmlValidCtxtPtr ctxt;
2818 const xmlChar *name;
2821 typedef xmlValidateMemo *xmlValidateMemoPtr;
2827 * Deallocate the memory used by a ref definition
2830 xmlFreeRef(xmlLinkPtr lk) {
2831 xmlRefPtr ref = (xmlRefPtr)xmlLinkGetData(lk);
2832 if (ref == NULL) return;
2833 if (ref->value != NULL)
2834 xmlFree((xmlChar *)ref->value);
2835 if (ref->name != NULL)
2836 xmlFree((xmlChar *)ref->name);
2842 * @list_ref: A list of references.
2844 * Deallocate the memory used by a list of references
2847 xmlFreeRefList(xmlListPtr list_ref) {
2848 if (list_ref == NULL) return;
2849 xmlListDelete(list_ref);
2854 * @data: Contents of current link
2855 * @user: Value supplied by the user
2857 * Returns 0 to abort the walk or 1 to continue
2860 xmlWalkRemoveRef(const void *data, const void *user)
2862 xmlAttrPtr attr0 = ((xmlRefPtr)data)->attr;
2863 xmlAttrPtr attr1 = ((xmlRemoveMemoPtr)user)->ap;
2864 xmlListPtr ref_list = ((xmlRemoveMemoPtr)user)->l;
2866 if (attr0 == attr1) { /* Matched: remove and terminate walk */
2867 xmlListRemoveFirst(ref_list, (void *)data);
2875 * @data0: Value supplied by the user
2876 * @data1: Value supplied by the user
2878 * Do nothing, return 0. Used to create unordered lists.
2881 xmlDummyCompare(const void *data0 ATTRIBUTE_UNUSED,
2882 const void *data1 ATTRIBUTE_UNUSED)
2889 * @ctxt: the validation context
2890 * @doc: pointer to the document
2891 * @value: the value name
2892 * @attr: the attribute holding the Ref
2894 * Register a new ref declaration
2896 * Returns NULL if not, otherwise the new xmlRefPtr
2899 xmlAddRef(xmlValidCtxtPtr ctxt, xmlDocPtr doc, const xmlChar *value,
2902 xmlRefTablePtr table;
2903 xmlListPtr ref_list;
2908 if (value == NULL) {
2916 * Create the Ref table if needed.
2918 table = (xmlRefTablePtr) doc->refs;
2919 if (table == NULL) {
2920 doc->refs = table = xmlHashCreateDict(0, doc->dict);
2922 if (table == NULL) {
2924 "xmlAddRef: Table creation failed!\n");
2928 ret = (xmlRefPtr) xmlMalloc(sizeof(xmlRef));
2930 xmlVErrMemory(ctxt, "malloc failed");
2935 * fill the structure.
2937 ret->value = xmlStrdup(value);
2938 if ((ctxt != NULL) && (ctxt->vstateNr != 0)) {
2940 * Operating in streaming mode, attr is gonna disapear
2942 ret->name = xmlStrdup(attr->name);
2948 ret->lineno = xmlGetLineNo(attr->parent);
2950 /* To add a reference :-
2951 * References are maintained as a list of references,
2952 * Lookup the entry, if no entry create new nodelist
2953 * Add the owning node to the NodeList
2957 if (NULL == (ref_list = xmlHashLookup(table, value))) {
2958 if (NULL == (ref_list = xmlListCreate(xmlFreeRef, xmlDummyCompare))) {
2959 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
2960 "xmlAddRef: Reference list creation failed!\n",
2964 if (xmlHashAddEntry(table, value, ref_list) < 0) {
2965 xmlListDelete(ref_list);
2966 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
2967 "xmlAddRef: Reference list insertion failed!\n",
2972 if (xmlListAppend(ref_list, ret) != 0) {
2973 xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
2974 "xmlAddRef: Reference list insertion failed!\n",
2981 if (ret->value != NULL)
2982 xmlFree((char *)ret->value);
2983 if (ret->name != NULL)
2984 xmlFree((char *)ret->name);
2992 * @table: An ref table
2994 * Deallocate the memory used by an Ref hash table.
2997 xmlFreeRefTable(xmlRefTablePtr table) {
2998 xmlHashFree(table, (xmlHashDeallocator) xmlFreeRefList);
3003 * @doc: the document
3004 * @elem: the element carrying the attribute
3005 * @attr: the attribute
3007 * Determine whether an attribute is of type Ref. In case we have DTD(s)
3008 * then this is simple, otherwise we use an heuristic: name Ref (upper
3011 * Returns 0 or 1 depending on the lookup result
3014 xmlIsRef(xmlDocPtr doc, xmlNodePtr elem, xmlAttrPtr attr) {
3019 if (doc == NULL) return(0);
3022 if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) {
3024 } else if (doc->type == XML_HTML_DOCUMENT_NODE) {
3028 xmlAttributePtr attrDecl;
3030 if (elem == NULL) return(0);
3031 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, attr->name);
3032 if ((attrDecl == NULL) && (doc->extSubset != NULL))
3033 attrDecl = xmlGetDtdAttrDesc(doc->extSubset,
3034 elem->name, attr->name);
3036 if ((attrDecl != NULL) &&
3037 (attrDecl->atype == XML_ATTRIBUTE_IDREF ||
3038 attrDecl->atype == XML_ATTRIBUTE_IDREFS))
3046 * @doc: the document
3047 * @attr: the attribute
3049 * Remove the given attribute from the Ref table maintained internally.
3051 * Returns -1 if the lookup failed and 0 otherwise
3054 xmlRemoveRef(xmlDocPtr doc, xmlAttrPtr attr) {
3055 xmlListPtr ref_list;
3056 xmlRefTablePtr table;
3058 xmlRemoveMemo target;
3060 if (doc == NULL) return(-1);
3061 if (attr == NULL) return(-1);
3062 table = (xmlRefTablePtr) doc->refs;
3068 ID = xmlNodeListGetString(doc, attr->children, 1);
3071 ref_list = xmlHashLookup(table, ID);
3073 if(ref_list == NULL) {
3077 /* At this point, ref_list refers to a list of references which
3078 * have the same key as the supplied attr. Our list of references
3079 * is ordered by reference address and we don't have that information
3080 * here to use when removing. We'll have to walk the list and
3081 * check for a matching attribute, when we find one stop the walk
3082 * and remove the entry.
3083 * The list is ordered by reference, so that means we don't have the
3084 * key. Passing the list and the reference to the walker means we
3085 * will have enough data to be able to remove the entry.
3087 target.l = ref_list;
3090 /* Remove the supplied attr from our list */
3091 xmlListWalk(ref_list, xmlWalkRemoveRef, &target);
3093 /*If the list is empty then remove the list entry in the hash */
3094 if (xmlListEmpty(ref_list))
3095 xmlHashUpdateEntry(table, ID, NULL, (xmlHashDeallocator)
3103 * @doc: pointer to the document
3106 * Find the set of references for the supplied ID.
3108 * Returns NULL if not found, otherwise node set for the ID.
3111 xmlGetRefs(xmlDocPtr doc, const xmlChar *ID) {
3112 xmlRefTablePtr table;
3122 table = (xmlRefTablePtr) doc->refs;
3126 return (xmlHashLookup(table, ID));
3129 /************************************************************************
3131 * Routines for validity checking *
3133 ************************************************************************/
3136 * xmlGetDtdElementDesc:
3137 * @dtd: a pointer to the DtD to search
3138 * @name: the element name
3140 * Search the DTD for the description of this element
3142 * returns the xmlElementPtr if found or NULL
3146 xmlGetDtdElementDesc(xmlDtdPtr dtd, const xmlChar *name) {
3147 xmlElementTablePtr table;
3149 xmlChar *uqname = NULL, *prefix = NULL;
3151 if ((dtd == NULL) || (name == NULL)) return(NULL);
3152 if (dtd->elements == NULL)
3154 table = (xmlElementTablePtr) dtd->elements;
3156 uqname = xmlSplitQName2(name, &prefix);
3159 cur = xmlHashLookup2(table, name, prefix);
3160 if (prefix != NULL) xmlFree(prefix);
3161 if (uqname != NULL) xmlFree(uqname);
3165 * xmlGetDtdElementDesc2:
3166 * @dtd: a pointer to the DtD to search
3167 * @name: the element name
3168 * @create: create an empty description if not found
3170 * Search the DTD for the description of this element
3172 * returns the xmlElementPtr if found or NULL
3175 static xmlElementPtr
3176 xmlGetDtdElementDesc2(xmlDtdPtr dtd, const xmlChar *name, int create) {
3177 xmlElementTablePtr table;
3179 xmlChar *uqname = NULL, *prefix = NULL;
3181 if (dtd == NULL) return(NULL);
3182 if (dtd->elements == NULL) {
3183 xmlDictPtr dict = NULL;
3185 if (dtd->doc != NULL)
3186 dict = dtd->doc->dict;
3191 * Create the Element table if needed.
3193 table = (xmlElementTablePtr) dtd->elements;
3194 if (table == NULL) {
3195 table = xmlHashCreateDict(0, dict);
3196 dtd->elements = (void *) table;
3198 if (table == NULL) {
3199 xmlVErrMemory(NULL, "element table allocation failed");
3203 table = (xmlElementTablePtr) dtd->elements;
3205 uqname = xmlSplitQName2(name, &prefix);
3208 cur = xmlHashLookup2(table, name, prefix);
3209 if ((cur == NULL) && (create)) {
3210 cur = (xmlElementPtr) xmlMalloc(sizeof(xmlElement));
3212 xmlVErrMemory(NULL, "malloc failed");
3215 memset(cur, 0, sizeof(xmlElement));
3216 cur->type = XML_ELEMENT_DECL;
3219 * fill the structure.
3221 cur->name = xmlStrdup(name);
3222 cur->prefix = xmlStrdup(prefix);
3223 cur->etype = XML_ELEMENT_TYPE_UNDEFINED;
3225 xmlHashAddEntry2(table, name, prefix, cur);
3227 if (prefix != NULL) xmlFree(prefix);
3228 if (uqname != NULL) xmlFree(uqname);
3233 * xmlGetDtdQElementDesc:
3234 * @dtd: a pointer to the DtD to search
3235 * @name: the element name
3236 * @prefix: the element namespace prefix
3238 * Search the DTD for the description of this element
3240 * returns the xmlElementPtr if found or NULL
3244 xmlGetDtdQElementDesc(xmlDtdPtr dtd, const xmlChar *name,
3245 const xmlChar *prefix) {
3246 xmlElementTablePtr table;
3248 if (dtd == NULL) return(NULL);
3249 if (dtd->elements == NULL) return(NULL);
3250 table = (xmlElementTablePtr) dtd->elements;
3252 return(xmlHashLookup2(table, name, prefix));
3256 * xmlGetDtdAttrDesc:
3257 * @dtd: a pointer to the DtD to search
3258 * @elem: the element name
3259 * @name: the attribute name
3261 * Search the DTD for the description of this attribute on
3264 * returns the xmlAttributePtr if found or NULL
3268 xmlGetDtdAttrDesc(xmlDtdPtr dtd, const xmlChar *elem, const xmlChar *name) {
3269 xmlAttributeTablePtr table;
3270 xmlAttributePtr cur;
3271 xmlChar *uqname = NULL, *prefix = NULL;
3273 if (dtd == NULL) return(NULL);
3274 if (dtd->attributes == NULL) return(NULL);
3276 table = (xmlAttributeTablePtr) dtd->attributes;
3280 uqname = xmlSplitQName2(name, &prefix);
3282 if (uqname != NULL) {
3283 cur = xmlHashLookup3(table, uqname, prefix, elem);
3284 if (prefix != NULL) xmlFree(prefix);
3285 if (uqname != NULL) xmlFree(uqname);
3287 cur = xmlHashLookup3(table, name, NULL, elem);
3292 * xmlGetDtdQAttrDesc:
3293 * @dtd: a pointer to the DtD to search
3294 * @elem: the element name
3295 * @name: the attribute name
3296 * @prefix: the attribute namespace prefix
3298 * Search the DTD for the description of this qualified attribute on
3301 * returns the xmlAttributePtr if found or NULL
3305 xmlGetDtdQAttrDesc(xmlDtdPtr dtd, const xmlChar *elem, const xmlChar *name,
3306 const xmlChar *prefix) {
3307 xmlAttributeTablePtr table;
3309 if (dtd == NULL) return(NULL);
3310 if (dtd->attributes == NULL) return(NULL);
3311 table = (xmlAttributeTablePtr) dtd->attributes;
3313 return(xmlHashLookup3(table, name, prefix, elem));
3317 * xmlGetDtdNotationDesc:
3318 * @dtd: a pointer to the DtD to search
3319 * @name: the notation name
3321 * Search the DTD for the description of this notation
3323 * returns the xmlNotationPtr if found or NULL
3327 xmlGetDtdNotationDesc(xmlDtdPtr dtd, const xmlChar *name) {
3328 xmlNotationTablePtr table;
3330 if (dtd == NULL) return(NULL);
3331 if (dtd->notations == NULL) return(NULL);
3332 table = (xmlNotationTablePtr) dtd->notations;
3334 return(xmlHashLookup(table, name));
3337 #if defined(LIBXML_VALID_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)
3339 * xmlValidateNotationUse:
3340 * @ctxt: the validation context
3341 * @doc: the document
3342 * @notationName: the notation name to check
3344 * Validate that the given name match a notation declaration.
3345 * - [ VC: Notation Declared ]
3347 * returns 1 if valid or 0 otherwise
3351 xmlValidateNotationUse(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
3352 const xmlChar *notationName) {
3353 xmlNotationPtr notaDecl;
3354 if ((doc == NULL) || (doc->intSubset == NULL) ||
3355 (notationName == NULL)) return(-1);
3357 notaDecl = xmlGetDtdNotationDesc(doc->intSubset, notationName);
3358 if ((notaDecl == NULL) && (doc->extSubset != NULL))
3359 notaDecl = xmlGetDtdNotationDesc(doc->extSubset, notationName);
3361 if ((notaDecl == NULL) && (ctxt != NULL)) {
3362 xmlErrValidNode(ctxt, (xmlNodePtr) doc, XML_DTD_UNKNOWN_NOTATION,
3363 "NOTATION %s is not declared\n",
3364 notationName, NULL, NULL);
3369 #endif /* LIBXML_VALID_ENABLED or LIBXML_SCHEMAS_ENABLED */
3372 * xmlIsMixedElement:
3373 * @doc: the document
3374 * @name: the element name
3376 * Search in the DtDs whether an element accept Mixed content (or ANY)
3377 * basically if it is supposed to accept text childs
3379 * returns 0 if no, 1 if yes, and -1 if no element description is available
3383 xmlIsMixedElement(xmlDocPtr doc, const xmlChar *name) {
3384 xmlElementPtr elemDecl;
3386 if ((doc == NULL) || (doc->intSubset == NULL)) return(-1);
3388 elemDecl = xmlGetDtdElementDesc(doc->intSubset, name);
3389 if ((elemDecl == NULL) && (doc->extSubset != NULL))
3390 elemDecl = xmlGetDtdElementDesc(doc->extSubset, name);
3391 if (elemDecl == NULL) return(-1);
3392 switch (elemDecl->etype) {
3393 case XML_ELEMENT_TYPE_UNDEFINED:
3395 case XML_ELEMENT_TYPE_ELEMENT:
3397 case XML_ELEMENT_TYPE_EMPTY:
3399 * return 1 for EMPTY since we want VC error to pop up
3400 * on <empty> </empty> for example
3402 case XML_ELEMENT_TYPE_ANY:
3403 case XML_ELEMENT_TYPE_MIXED:
3409 #ifdef LIBXML_VALID_ENABLED
3412 xmlIsDocNameStartChar(xmlDocPtr doc, int c) {
3413 if ((doc == NULL) || (doc->properties & XML_DOC_OLD10) == 0) {
3415 * Use the new checks of production [4] [4a] amd [5] of the
3416 * Update 5 of XML-1.0
3418 if (((c >= 'a') && (c <= 'z')) ||
3419 ((c >= 'A') && (c <= 'Z')) ||
3420 (c == '_') || (c == ':') ||
3421 ((c >= 0xC0) && (c <= 0xD6)) ||
3422 ((c >= 0xD8) && (c <= 0xF6)) ||
3423 ((c >= 0xF8) && (c <= 0x2FF)) ||
3424 ((c >= 0x370) && (c <= 0x37D)) ||
3425 ((c >= 0x37F) && (c <= 0x1FFF)) ||
3426 ((c >= 0x200C) && (c <= 0x200D)) ||
3427 ((c >= 0x2070) && (c <= 0x218F)) ||
3428 ((c >= 0x2C00) && (c <= 0x2FEF)) ||
3429 ((c >= 0x3001) && (c <= 0xD7FF)) ||
3430 ((c >= 0xF900) && (c <= 0xFDCF)) ||
3431 ((c >= 0xFDF0) && (c <= 0xFFFD)) ||
3432 ((c >= 0x10000) && (c <= 0xEFFFF)))
3435 if (IS_LETTER(c) || (c == '_') || (c == ':'))
3442 xmlIsDocNameChar(xmlDocPtr doc, int c) {
3443 if ((doc == NULL) || (doc->properties & XML_DOC_OLD10) == 0) {
3445 * Use the new checks of production [4] [4a] amd [5] of the
3446 * Update 5 of XML-1.0
3448 if (((c >= 'a') && (c <= 'z')) ||
3449 ((c >= 'A') && (c <= 'Z')) ||
3450 ((c >= '0') && (c <= '9')) || /* !start */
3451 (c == '_') || (c == ':') ||
3452 (c == '-') || (c == '.') || (c == 0xB7) || /* !start */
3453 ((c >= 0xC0) && (c <= 0xD6)) ||
3454 ((c >= 0xD8) && (c <= 0xF6)) ||
3455 ((c >= 0xF8) && (c <= 0x2FF)) ||
3456 ((c >= 0x300) && (c <= 0x36F)) || /* !start */
3457 ((c >= 0x370) && (c <= 0x37D)) ||
3458 ((c >= 0x37F) && (c <= 0x1FFF)) ||
3459 ((c >= 0x200C) && (c <= 0x200D)) ||
3460 ((c >= 0x203F) && (c <= 0x2040)) || /* !start */
3461 ((c >= 0x2070) && (c <= 0x218F)) ||
3462 ((c >= 0x2C00) && (c <= 0x2FEF)) ||
3463 ((c >= 0x3001) && (c <= 0xD7FF)) ||
3464 ((c >= 0xF900) && (c <= 0xFDCF)) ||
3465 ((c >= 0xFDF0) && (c <= 0xFFFD)) ||
3466 ((c >= 0x10000) && (c <= 0xEFFFF)))
3469 if ((IS_LETTER(c)) || (IS_DIGIT(c)) ||
3470 (c == '.') || (c == '-') ||
3471 (c == '_') || (c == ':') ||
3472 (IS_COMBINING(c)) ||
3480 * xmlValidateNameValue:
3481 * @doc: pointer to the document or NULL
3482 * @value: an Name value
3484 * Validate that the given value match Name production
3486 * returns 1 if valid or 0 otherwise
3490 xmlValidateNameValueInternal(xmlDocPtr doc, const xmlChar *value) {
3494 if (value == NULL) return(0);
3496 val = xmlStringCurrentChar(NULL, cur, &len);
3498 if (!xmlIsDocNameStartChar(doc, val))
3501 val = xmlStringCurrentChar(NULL, cur, &len);
3503 while (xmlIsDocNameChar(doc, val)) {
3504 val = xmlStringCurrentChar(NULL, cur, &len);
3508 if (val != 0) return(0);
3514 * xmlValidateNameValue:
3515 * @value: an Name value
3517 * Validate that the given value match Name production
3519 * returns 1 if valid or 0 otherwise
3523 xmlValidateNameValue(const xmlChar *value) {
3524 return(xmlValidateNameValueInternal(NULL, value));
3528 * xmlValidateNamesValueInternal:
3529 * @doc: pointer to the document or NULL
3530 * @value: an Names value
3532 * Validate that the given value match Names production
3534 * returns 1 if valid or 0 otherwise
3538 xmlValidateNamesValueInternal(xmlDocPtr doc, const xmlChar *value) {
3542 if (value == NULL) return(0);
3544 val = xmlStringCurrentChar(NULL, cur, &len);
3547 if (!xmlIsDocNameStartChar(doc, val))
3550 val = xmlStringCurrentChar(NULL, cur, &len);
3552 while (xmlIsDocNameChar(doc, val)) {
3553 val = xmlStringCurrentChar(NULL, cur, &len);
3557 /* Should not test IS_BLANK(val) here -- see erratum E20*/
3558 while (val == 0x20) {
3559 while (val == 0x20) {
3560 val = xmlStringCurrentChar(NULL, cur, &len);
3564 if (!xmlIsDocNameStartChar(doc, val))
3567 val = xmlStringCurrentChar(NULL, cur, &len);
3570 while (xmlIsDocNameChar(doc, val)) {
3571 val = xmlStringCurrentChar(NULL, cur, &len);
3576 if (val != 0) return(0);
3582 * xmlValidateNamesValue:
3583 * @value: an Names value
3585 * Validate that the given value match Names production
3587 * returns 1 if valid or 0 otherwise
3591 xmlValidateNamesValue(const xmlChar *value) {
3592 return(xmlValidateNamesValueInternal(NULL, value));
3596 * xmlValidateNmtokenValueInternal:
3597 * @doc: pointer to the document or NULL
3598 * @value: an Nmtoken value
3600 * Validate that the given value match Nmtoken production
3602 * [ VC: Name Token ]
3604 * returns 1 if valid or 0 otherwise
3608 xmlValidateNmtokenValueInternal(xmlDocPtr doc, const xmlChar *value) {
3612 if (value == NULL) return(0);
3614 val = xmlStringCurrentChar(NULL, cur, &len);
3617 if (!xmlIsDocNameChar(doc, val))
3620 val = xmlStringCurrentChar(NULL, cur, &len);
3622 while (xmlIsDocNameChar(doc, val)) {
3623 val = xmlStringCurrentChar(NULL, cur, &len);
3627 if (val != 0) return(0);
3633 * xmlValidateNmtokenValue:
3634 * @value: an Nmtoken value
3636 * Validate that the given value match Nmtoken production
3638 * [ VC: Name Token ]
3640 * returns 1 if valid or 0 otherwise
3644 xmlValidateNmtokenValue(const xmlChar *value) {
3645 return(xmlValidateNmtokenValueInternal(NULL, value));
3649 * xmlValidateNmtokensValueInternal:
3650 * @doc: pointer to the document or NULL
3651 * @value: an Nmtokens value
3653 * Validate that the given value match Nmtokens production
3655 * [ VC: Name Token ]
3657 * returns 1 if valid or 0 otherwise
3661 xmlValidateNmtokensValueInternal(xmlDocPtr doc, const xmlChar *value) {
3665 if (value == NULL) return(0);
3667 val = xmlStringCurrentChar(NULL, cur, &len);
3670 while (IS_BLANK(val)) {
3671 val = xmlStringCurrentChar(NULL, cur, &len);
3675 if (!xmlIsDocNameChar(doc, val))
3678 while (xmlIsDocNameChar(doc, val)) {
3679 val = xmlStringCurrentChar(NULL, cur, &len);
3683 /* Should not test IS_BLANK(val) here -- see erratum E20*/
3684 while (val == 0x20) {
3685 while (val == 0x20) {
3686 val = xmlStringCurrentChar(NULL, cur, &len);
3689 if (val == 0) return(1);
3691 if (!xmlIsDocNameChar(doc, val))
3694 val = xmlStringCurrentChar(NULL, cur, &len);
3697 while (xmlIsDocNameChar(doc, val)) {
3698 val = xmlStringCurrentChar(NULL, cur, &len);
3703 if (val != 0) return(0);
3709 * xmlValidateNmtokensValue:
3710 * @value: an Nmtokens value
3712 * Validate that the given value match Nmtokens production
3714 * [ VC: Name Token ]
3716 * returns 1 if valid or 0 otherwise
3720 xmlValidateNmtokensValue(const xmlChar *value) {
3721 return(xmlValidateNmtokensValueInternal(NULL, value));
3725 * xmlValidateNotationDecl:
3726 * @ctxt: the validation context
3727 * @doc: a document instance
3728 * @nota: a notation definition
3730 * Try to validate a single notation definition
3731 * basically it does the following checks as described by the
3732 * XML-1.0 recommendation:
3733 * - it seems that no validity constraint exists on notation declarations
3734 * But this function get called anyway ...
3736 * returns 1 if valid or 0 otherwise
3740 xmlValidateNotationDecl(xmlValidCtxtPtr ctxt ATTRIBUTE_UNUSED, xmlDocPtr doc ATTRIBUTE_UNUSED,
3741 xmlNotationPtr nota ATTRIBUTE_UNUSED) {
3748 * xmlValidateAttributeValueInternal:
3749 * @doc: the document
3750 * @type: an attribute type
3751 * @value: an attribute value
3753 * Validate that the given attribute value match the proper production
3755 * returns 1 if valid or 0 otherwise
3759 xmlValidateAttributeValueInternal(xmlDocPtr doc, xmlAttributeType type,
3760 const xmlChar *value) {
3762 case XML_ATTRIBUTE_ENTITIES:
3763 case XML_ATTRIBUTE_IDREFS:
3764 return(xmlValidateNamesValueInternal(doc, value));
3765 case XML_ATTRIBUTE_ENTITY:
3766 case XML_ATTRIBUTE_IDREF:
3767 case XML_ATTRIBUTE_ID:
3768 case XML_ATTRIBUTE_NOTATION:
3769 return(xmlValidateNameValueInternal(doc, value));
3770 case XML_ATTRIBUTE_NMTOKENS:
3771 case XML_ATTRIBUTE_ENUMERATION:
3772 return(xmlValidateNmtokensValueInternal(doc, value));
3773 case XML_ATTRIBUTE_NMTOKEN:
3774 return(xmlValidateNmtokenValueInternal(doc, value));
3775 case XML_ATTRIBUTE_CDATA:
3782 * xmlValidateAttributeValue:
3783 * @type: an attribute type
3784 * @value: an attribute value
3786 * Validate that the given attribute value match the proper production
3789 * Values of type ID must match the Name production....
3792 * Values of type IDREF must match the Name production, and values
3793 * of type IDREFS must match Names ...
3795 * [ VC: Entity Name ]
3796 * Values of type ENTITY must match the Name production, values
3797 * of type ENTITIES must match Names ...
3799 * [ VC: Name Token ]
3800 * Values of type NMTOKEN must match the Nmtoken production; values
3801 * of type NMTOKENS must match Nmtokens.
3803 * returns 1 if valid or 0 otherwise
3806 xmlValidateAttributeValue(xmlAttributeType type, const xmlChar *value) {
3807 return(xmlValidateAttributeValueInternal(NULL, type, value));
3811 * xmlValidateAttributeValue2:
3812 * @ctxt: the validation context
3813 * @doc: the document
3814 * @name: the attribute name (used for error reporting only)
3815 * @type: the attribute type
3816 * @value: the attribute value
3818 * Validate that the given attribute value match a given type.
3819 * This typically cannot be done before having finished parsing
3823 * Values of type IDREF must match one of the declared IDs
3824 * Values of type IDREFS must match a sequence of the declared IDs
3825 * each Name must match the value of an ID attribute on some element
3826 * in the XML document; i.e. IDREF values must match the value of
3829 * [ VC: Entity Name ]
3830 * Values of type ENTITY must match one declared entity
3831 * Values of type ENTITIES must match a sequence of declared entities
3833 * [ VC: Notation Attributes ]
3834 * all notation names in the declaration must be declared.
3836 * returns 1 if valid or 0 otherwise
3840 xmlValidateAttributeValue2(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
3841 const xmlChar *name, xmlAttributeType type, const xmlChar *value) {
3844 case XML_ATTRIBUTE_IDREFS:
3845 case XML_ATTRIBUTE_IDREF:
3846 case XML_ATTRIBUTE_ID:
3847 case XML_ATTRIBUTE_NMTOKENS:
3848 case XML_ATTRIBUTE_ENUMERATION:
3849 case XML_ATTRIBUTE_NMTOKEN:
3850 case XML_ATTRIBUTE_CDATA:
3852 case XML_ATTRIBUTE_ENTITY: {
3855 ent = xmlGetDocEntity(doc, value);
3856 /* yeah it's a bit messy... */
3857 if ((ent == NULL) && (doc->standalone == 1)) {
3858 doc->standalone = 0;
3859 ent = xmlGetDocEntity(doc, value);
3862 xmlErrValidNode(ctxt, (xmlNodePtr) doc,
3863 XML_DTD_UNKNOWN_ENTITY,
3864 "ENTITY attribute %s reference an unknown entity \"%s\"\n",
3867 } else if (ent->etype != XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) {
3868 xmlErrValidNode(ctxt, (xmlNodePtr) doc,
3869 XML_DTD_ENTITY_TYPE,
3870 "ENTITY attribute %s reference an entity \"%s\" of wrong type\n",
3876 case XML_ATTRIBUTE_ENTITIES: {
3877 xmlChar *dup, *nam = NULL, *cur, save;
3880 dup = xmlStrdup(value);
3886 while ((*cur != 0) && (!IS_BLANK_CH(*cur))) cur++;
3889 ent = xmlGetDocEntity(doc, nam);
3891 xmlErrValidNode(ctxt, (xmlNodePtr) doc,
3892 XML_DTD_UNKNOWN_ENTITY,
3893 "ENTITIES attribute %s reference an unknown entity \"%s\"\n",
3896 } else if (ent->etype != XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) {
3897 xmlErrValidNode(ctxt, (xmlNodePtr) doc,
3898 XML_DTD_ENTITY_TYPE,
3899 "ENTITIES attribute %s reference an entity \"%s\" of wrong type\n",
3906 while (IS_BLANK_CH(*cur)) cur++;
3911 case XML_ATTRIBUTE_NOTATION: {
3912 xmlNotationPtr nota;
3914 nota = xmlGetDtdNotationDesc(doc->intSubset, value);
3915 if ((nota == NULL) && (doc->extSubset != NULL))
3916 nota = xmlGetDtdNotationDesc(doc->extSubset, value);
3919 xmlErrValidNode(ctxt, (xmlNodePtr) doc,
3920 XML_DTD_UNKNOWN_NOTATION,
3921 "NOTATION attribute %s reference an unknown notation \"%s\"\n",
3932 * xmlValidCtxtNormalizeAttributeValue:
3933 * @ctxt: the validation context
3934 * @doc: the document
3936 * @name: the attribute name
3937 * @value: the attribute value
3938 * @ctxt: the validation context or NULL
3940 * Does the validation related extra step of the normalization of attribute
3943 * If the declared value is not CDATA, then the XML processor must further
3944 * process the normalized attribute value by discarding any leading and
3945 * trailing space (#x20) characters, and by replacing sequences of space
3946 * (#x20) characters by single space (#x20) character.
3948 * Also check VC: Standalone Document Declaration in P32, and update
3949 * ctxt->valid accordingly
3951 * returns a new normalized string if normalization is needed, NULL otherwise
3952 * the caller must free the returned value.
3956 xmlValidCtxtNormalizeAttributeValue(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
3957 xmlNodePtr elem, const xmlChar *name, const xmlChar *value) {
3960 xmlAttributePtr attrDecl = NULL;
3963 if (doc == NULL) return(NULL);
3964 if (elem == NULL) return(NULL);
3965 if (name == NULL) return(NULL);
3966 if (value == NULL) return(NULL);
3968 if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) {
3972 fullname = xmlBuildQName(elem->name, elem->ns->prefix, fn, 50);
3973 if (fullname == NULL)
3975 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, fullname, name);
3976 if ((attrDecl == NULL) && (doc->extSubset != NULL)) {
3977 attrDecl = xmlGetDtdAttrDesc(doc->extSubset, fullname, name);
3978 if (attrDecl != NULL)
3981 if ((fullname != fn) && (fullname != elem->name))
3984 if ((attrDecl == NULL) && (doc->intSubset != NULL))
3985 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, name);
3986 if ((attrDecl == NULL) && (doc->extSubset != NULL)) {
3987 attrDecl = xmlGetDtdAttrDesc(doc->extSubset, elem->name, name);
3988 if (attrDecl != NULL)
3992 if (attrDecl == NULL)
3994 if (attrDecl->atype == XML_ATTRIBUTE_CDATA)
3997 ret = xmlStrdup(value);
4002 while (*src == 0x20) src++;
4005 while (*src == 0x20) src++;
4013 if ((doc->standalone) && (extsubset == 1) && (!xmlStrEqual(value, ret))) {
4014 xmlErrValidNode(ctxt, elem, XML_DTD_NOT_STANDALONE,
4015 "standalone: %s on %s value had to be normalized based on external subset declaration\n",
4016 name, elem->name, NULL);
4023 * xmlValidNormalizeAttributeValue:
4024 * @doc: the document
4026 * @name: the attribute name
4027 * @value: the attribute value
4029 * Does the validation related extra step of the normalization of attribute
4032 * If the declared value is not CDATA, then the XML processor must further
4033 * process the normalized attribute value by discarding any leading and
4034 * trailing space (#x20) characters, and by replacing sequences of space
4035 * (#x20) characters by single space (#x20) character.
4037 * Returns a new normalized string if normalization is needed, NULL otherwise
4038 * the caller must free the returned value.
4042 xmlValidNormalizeAttributeValue(xmlDocPtr doc, xmlNodePtr elem,
4043 const xmlChar *name, const xmlChar *value) {
4046 xmlAttributePtr attrDecl = NULL;
4048 if (doc == NULL) return(NULL);
4049 if (elem == NULL) return(NULL);
4050 if (name == NULL) return(NULL);
4051 if (value == NULL) return(NULL);
4053 if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) {
4057 fullname = xmlBuildQName(elem->name, elem->ns->prefix, fn, 50);
4058 if (fullname == NULL)
4060 if ((fullname != fn) && (fullname != elem->name))
4063 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, name);
4064 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4065 attrDecl = xmlGetDtdAttrDesc(doc->extSubset, elem->name, name);
4067 if (attrDecl == NULL)
4069 if (attrDecl->atype == XML_ATTRIBUTE_CDATA)
4072 ret = xmlStrdup(value);
4077 while (*src == 0x20) src++;
4080 while (*src == 0x20) src++;
4092 xmlValidateAttributeIdCallback(xmlAttributePtr attr, int *count,
4093 const xmlChar* name ATTRIBUTE_UNUSED) {
4094 if (attr->atype == XML_ATTRIBUTE_ID) (*count)++;
4098 * xmlValidateAttributeDecl:
4099 * @ctxt: the validation context
4100 * @doc: a document instance
4101 * @attr: an attribute definition
4103 * Try to validate a single attribute definition
4104 * basically it does the following checks as described by the
4105 * XML-1.0 recommendation:
4106 * - [ VC: Attribute Default Legal ]
4107 * - [ VC: Enumeration ]
4108 * - [ VC: ID Attribute Default ]
4110 * The ID/IDREF uniqueness and matching are done separately
4112 * returns 1 if valid or 0 otherwise
4116 xmlValidateAttributeDecl(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
4117 xmlAttributePtr attr) {
4121 if(attr == NULL) return(1);
4123 /* Attribute Default Legal */
4125 if (attr->defaultValue != NULL) {
4126 val = xmlValidateAttributeValueInternal(doc, attr->atype,
4127 attr->defaultValue);
4129 xmlErrValidNode(ctxt, (xmlNodePtr) attr, XML_DTD_ATTRIBUTE_DEFAULT,
4130 "Syntax of default value for attribute %s of %s is not valid\n",
4131 attr->name, attr->elem, NULL);
4136 /* ID Attribute Default */
4137 if ((attr->atype == XML_ATTRIBUTE_ID)&&
4138 (attr->def != XML_ATTRIBUTE_IMPLIED) &&
4139 (attr->def != XML_ATTRIBUTE_REQUIRED)) {
4140 xmlErrValidNode(ctxt, (xmlNodePtr) attr, XML_DTD_ID_FIXED,
4141 "ID attribute %s of %s is not valid must be #IMPLIED or #REQUIRED\n",
4142 attr->name, attr->elem, NULL);
4146 /* One ID per Element Type */
4147 if (attr->atype == XML_ATTRIBUTE_ID) {
4150 /* the trick is that we parse DtD as their own internal subset */
4151 xmlElementPtr elem = xmlGetDtdElementDesc(doc->intSubset,
4154 nbId = xmlScanIDAttributeDecl(NULL, elem, 0);
4156 xmlAttributeTablePtr table;
4159 * The attribute may be declared in the internal subset and the
4160 * element in the external subset.
4163 if (doc->intSubset != NULL) {
4164 table = (xmlAttributeTablePtr) doc->intSubset->attributes;
4165 xmlHashScan3(table, NULL, NULL, attr->elem, (xmlHashScanner)
4166 xmlValidateAttributeIdCallback, &nbId);
4171 xmlErrValidNodeNr(ctxt, (xmlNodePtr) attr, XML_DTD_ID_SUBSET,
4172 "Element %s has %d ID attribute defined in the internal subset : %s\n",
4173 attr->elem, nbId, attr->name);
4174 } else if (doc->extSubset != NULL) {
4176 elem = xmlGetDtdElementDesc(doc->extSubset, attr->elem);
4178 extId = xmlScanIDAttributeDecl(NULL, elem, 0);
4181 xmlErrValidNodeNr(ctxt, (xmlNodePtr) attr, XML_DTD_ID_SUBSET,
4182 "Element %s has %d ID attribute defined in the external subset : %s\n",
4183 attr->elem, extId, attr->name);
4184 } else if (extId + nbId > 1) {
4185 xmlErrValidNode(ctxt, (xmlNodePtr) attr, XML_DTD_ID_SUBSET,
4186 "Element %s has ID attributes defined in the internal and external subset : %s\n",
4187 attr->elem, attr->name, NULL);
4192 /* Validity Constraint: Enumeration */
4193 if ((attr->defaultValue != NULL) && (attr->tree != NULL)) {
4194 xmlEnumerationPtr tree = attr->tree;
4195 while (tree != NULL) {
4196 if (xmlStrEqual(tree->name, attr->defaultValue)) break;
4200 xmlErrValidNode(ctxt, (xmlNodePtr) attr, XML_DTD_ATTRIBUTE_VALUE,
4201 "Default value \"%s\" for attribute %s of %s is not among the enumerated set\n",
4202 attr->defaultValue, attr->name, attr->elem);
4211 * xmlValidateElementDecl:
4212 * @ctxt: the validation context
4213 * @doc: a document instance
4214 * @elem: an element definition
4216 * Try to validate a single element definition
4217 * basically it does the following checks as described by the
4218 * XML-1.0 recommendation:
4219 * - [ VC: One ID per Element Type ]
4220 * - [ VC: No Duplicate Types ]
4221 * - [ VC: Unique Element Type Declaration ]
4223 * returns 1 if valid or 0 otherwise
4227 xmlValidateElementDecl(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
4228 xmlElementPtr elem) {
4234 if (elem == NULL) return(1);
4237 #ifdef LIBXML_REGEXP_ENABLED
4238 /* Build the regexp associated to the content model */
4239 ret = xmlValidBuildContentModel(ctxt, elem);
4243 /* No Duplicate Types */
4244 if (elem->etype == XML_ELEMENT_TYPE_MIXED) {
4245 xmlElementContentPtr cur, next;
4246 const xmlChar *name;
4248 cur = elem->content;
4249 while (cur != NULL) {
4250 if (cur->type != XML_ELEMENT_CONTENT_OR) break;
4251 if (cur->c1 == NULL) break;
4252 if (cur->c1->type == XML_ELEMENT_CONTENT_ELEMENT) {
4253 name = cur->c1->name;
4255 while (next != NULL) {
4256 if (next->type == XML_ELEMENT_CONTENT_ELEMENT) {
4257 if ((xmlStrEqual(next->name, name)) &&
4258 (xmlStrEqual(next->prefix, cur->c1->prefix))) {
4259 if (cur->c1->prefix == NULL) {
4260 xmlErrValidNode(ctxt, (xmlNodePtr) elem, XML_DTD_CONTENT_ERROR,
4261 "Definition of %s has duplicate references of %s\n",
4262 elem->name, name, NULL);
4264 xmlErrValidNode(ctxt, (xmlNodePtr) elem, XML_DTD_CONTENT_ERROR,
4265 "Definition of %s has duplicate references of %s:%s\n",
4266 elem->name, cur->c1->prefix, name);
4272 if (next->c1 == NULL) break;
4273 if (next->c1->type != XML_ELEMENT_CONTENT_ELEMENT) break;
4274 if ((xmlStrEqual(next->c1->name, name)) &&
4275 (xmlStrEqual(next->c1->prefix, cur->c1->prefix))) {
4276 if (cur->c1->prefix == NULL) {
4277 xmlErrValidNode(ctxt, (xmlNodePtr) elem, XML_DTD_CONTENT_ERROR,
4278 "Definition of %s has duplicate references to %s\n",
4279 elem->name, name, NULL);
4281 xmlErrValidNode(ctxt, (xmlNodePtr) elem, XML_DTD_CONTENT_ERROR,
4282 "Definition of %s has duplicate references to %s:%s\n",
4283 elem->name, cur->c1->prefix, name);
4294 /* VC: Unique Element Type Declaration */
4295 tst = xmlGetDtdElementDesc(doc->intSubset, elem->name);
4296 if ((tst != NULL ) && (tst != elem) &&
4297 ((tst->prefix == elem->prefix) ||
4298 (xmlStrEqual(tst->prefix, elem->prefix))) &&
4299 (tst->etype != XML_ELEMENT_TYPE_UNDEFINED)) {
4300 xmlErrValidNode(ctxt, (xmlNodePtr) elem, XML_DTD_ELEM_REDEFINED,
4301 "Redefinition of element %s\n",
4302 elem->name, NULL, NULL);
4305 tst = xmlGetDtdElementDesc(doc->extSubset, elem->name);
4306 if ((tst != NULL ) && (tst != elem) &&
4307 ((tst->prefix == elem->prefix) ||
4308 (xmlStrEqual(tst->prefix, elem->prefix))) &&
4309 (tst->etype != XML_ELEMENT_TYPE_UNDEFINED)) {
4310 xmlErrValidNode(ctxt, (xmlNodePtr) elem, XML_DTD_ELEM_REDEFINED,
4311 "Redefinition of element %s\n",
4312 elem->name, NULL, NULL);
4315 /* One ID per Element Type
4316 * already done when registering the attribute
4317 if (xmlScanIDAttributeDecl(ctxt, elem) > 1) {
4324 * xmlValidateOneAttribute:
4325 * @ctxt: the validation context
4326 * @doc: a document instance
4327 * @elem: an element instance
4328 * @attr: an attribute instance
4329 * @value: the attribute value (without entities processing)
4331 * Try to validate a single attribute for an element
4332 * basically it does the following checks as described by the
4333 * XML-1.0 recommendation:
4334 * - [ VC: Attribute Value Type ]
4335 * - [ VC: Fixed Attribute Default ]
4336 * - [ VC: Entity Name ]
4337 * - [ VC: Name Token ]
4340 * - [ VC: Entity Name ]
4341 * - [ VC: Notation Attributes ]
4343 * The ID/IDREF uniqueness and matching are done separately
4345 * returns 1 if valid or 0 otherwise
4349 xmlValidateOneAttribute(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
4350 xmlNodePtr elem, xmlAttrPtr attr, const xmlChar *value)
4352 xmlAttributePtr attrDecl = NULL;
4357 if ((elem == NULL) || (elem->name == NULL)) return(0);
4358 if ((attr == NULL) || (attr->name == NULL)) return(0);
4360 if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) {
4364 fullname = xmlBuildQName(elem->name, elem->ns->prefix, fn, 50);
4365 if (fullname == NULL)
4367 if (attr->ns != NULL) {
4368 attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, fullname,
4369 attr->name, attr->ns->prefix);
4370 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4371 attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, fullname,
4372 attr->name, attr->ns->prefix);
4374 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, fullname, attr->name);
4375 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4376 attrDecl = xmlGetDtdAttrDesc(doc->extSubset,
4377 fullname, attr->name);
4379 if ((fullname != fn) && (fullname != elem->name))
4382 if (attrDecl == NULL) {
4383 if (attr->ns != NULL) {
4384 attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, elem->name,
4385 attr->name, attr->ns->prefix);
4386 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4387 attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, elem->name,
4388 attr->name, attr->ns->prefix);
4390 attrDecl = xmlGetDtdAttrDesc(doc->intSubset,
4391 elem->name, attr->name);
4392 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4393 attrDecl = xmlGetDtdAttrDesc(doc->extSubset,
4394 elem->name, attr->name);
4399 /* Validity Constraint: Attribute Value Type */
4400 if (attrDecl == NULL) {
4401 xmlErrValidNode(ctxt, elem, XML_DTD_UNKNOWN_ATTRIBUTE,
4402 "No declaration for attribute %s of element %s\n",
4403 attr->name, elem->name, NULL);
4406 attr->atype = attrDecl->atype;
4408 val = xmlValidateAttributeValueInternal(doc, attrDecl->atype, value);
4410 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_VALUE,
4411 "Syntax of value for attribute %s of %s is not valid\n",
4412 attr->name, elem->name, NULL);
4416 /* Validity constraint: Fixed Attribute Default */
4417 if (attrDecl->def == XML_ATTRIBUTE_FIXED) {
4418 if (!xmlStrEqual(value, attrDecl->defaultValue)) {
4419 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_DEFAULT,
4420 "Value for attribute %s of %s is different from default \"%s\"\n",
4421 attr->name, elem->name, attrDecl->defaultValue);
4426 /* Validity Constraint: ID uniqueness */
4427 if (attrDecl->atype == XML_ATTRIBUTE_ID) {
4428 if (xmlAddID(ctxt, doc, value, attr) == NULL)
4432 if ((attrDecl->atype == XML_ATTRIBUTE_IDREF) ||
4433 (attrDecl->atype == XML_ATTRIBUTE_IDREFS)) {
4434 if (xmlAddRef(ctxt, doc, value, attr) == NULL)
4438 /* Validity Constraint: Notation Attributes */
4439 if (attrDecl->atype == XML_ATTRIBUTE_NOTATION) {
4440 xmlEnumerationPtr tree = attrDecl->tree;
4441 xmlNotationPtr nota;
4443 /* First check that the given NOTATION was declared */
4444 nota = xmlGetDtdNotationDesc(doc->intSubset, value);
4446 nota = xmlGetDtdNotationDesc(doc->extSubset, value);
4449 xmlErrValidNode(ctxt, elem, XML_DTD_UNKNOWN_NOTATION,
4450 "Value \"%s\" for attribute %s of %s is not a declared Notation\n",
4451 value, attr->name, elem->name);
4455 /* Second, verify that it's among the list */
4456 while (tree != NULL) {
4457 if (xmlStrEqual(tree->name, value)) break;
4461 xmlErrValidNode(ctxt, elem, XML_DTD_NOTATION_VALUE,
4462 "Value \"%s\" for attribute %s of %s is not among the enumerated notations\n",
4463 value, attr->name, elem->name);
4468 /* Validity Constraint: Enumeration */
4469 if (attrDecl->atype == XML_ATTRIBUTE_ENUMERATION) {
4470 xmlEnumerationPtr tree = attrDecl->tree;
4471 while (tree != NULL) {
4472 if (xmlStrEqual(tree->name, value)) break;
4476 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_VALUE,
4477 "Value \"%s\" for attribute %s of %s is not among the enumerated set\n",
4478 value, attr->name, elem->name);
4483 /* Fixed Attribute Default */
4484 if ((attrDecl->def == XML_ATTRIBUTE_FIXED) &&
4485 (!xmlStrEqual(attrDecl->defaultValue, value))) {
4486 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_VALUE,
4487 "Value for attribute %s of %s must be \"%s\"\n",
4488 attr->name, elem->name, attrDecl->defaultValue);
4492 /* Extra check for the attribute value */
4493 ret &= xmlValidateAttributeValue2(ctxt, doc, attr->name,
4494 attrDecl->atype, value);
4500 * xmlValidateOneNamespace:
4501 * @ctxt: the validation context
4502 * @doc: a document instance
4503 * @elem: an element instance
4504 * @prefix: the namespace prefix
4505 * @ns: an namespace declaration instance
4506 * @value: the attribute value (without entities processing)
4508 * Try to validate a single namespace declaration for an element
4509 * basically it does the following checks as described by the
4510 * XML-1.0 recommendation:
4511 * - [ VC: Attribute Value Type ]
4512 * - [ VC: Fixed Attribute Default ]
4513 * - [ VC: Entity Name ]
4514 * - [ VC: Name Token ]
4517 * - [ VC: Entity Name ]
4518 * - [ VC: Notation Attributes ]
4520 * The ID/IDREF uniqueness and matching are done separately
4522 * returns 1 if valid or 0 otherwise
4526 xmlValidateOneNamespace(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
4527 xmlNodePtr elem, const xmlChar *prefix, xmlNsPtr ns, const xmlChar *value) {
4528 /* xmlElementPtr elemDecl; */
4529 xmlAttributePtr attrDecl = NULL;
4534 if ((elem == NULL) || (elem->name == NULL)) return(0);
4535 if ((ns == NULL) || (ns->href == NULL)) return(0);
4537 if (prefix != NULL) {
4541 fullname = xmlBuildQName(elem->name, prefix, fn, 50);
4542 if (fullname == NULL) {
4543 xmlVErrMemory(ctxt, "Validating namespace");
4546 if (ns->prefix != NULL) {
4547 attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, fullname,
4548 ns->prefix, BAD_CAST "xmlns");
4549 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4550 attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, fullname,
4551 ns->prefix, BAD_CAST "xmlns");
4553 attrDecl = xmlGetDtdAttrDesc(doc->intSubset, fullname,
4555 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4556 attrDecl = xmlGetDtdAttrDesc(doc->extSubset, fullname,
4559 if ((fullname != fn) && (fullname != elem->name))
4562 if (attrDecl == NULL) {
4563 if (ns->prefix != NULL) {
4564 attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, elem->name,
4565 ns->prefix, BAD_CAST "xmlns");
4566 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4567 attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, elem->name,
4568 ns->prefix, BAD_CAST "xmlns");
4570 attrDecl = xmlGetDtdAttrDesc(doc->intSubset,
4571 elem->name, BAD_CAST "xmlns");
4572 if ((attrDecl == NULL) && (doc->extSubset != NULL))
4573 attrDecl = xmlGetDtdAttrDesc(doc->extSubset,
4574 elem->name, BAD_CAST "xmlns");
4579 /* Validity Constraint: Attribute Value Type */
4580 if (attrDecl == NULL) {
4581 if (ns->prefix != NULL) {
4582 xmlErrValidNode(ctxt, elem, XML_DTD_UNKNOWN_ATTRIBUTE,
4583 "No declaration for attribute xmlns:%s of element %s\n",
4584 ns->prefix, elem->name, NULL);
4586 xmlErrValidNode(ctxt, elem, XML_DTD_UNKNOWN_ATTRIBUTE,
4587 "No declaration for attribute xmlns of element %s\n",
4588 elem->name, NULL, NULL);
4593 val = xmlValidateAttributeValueInternal(doc, attrDecl->atype, value);
4595 if (ns->prefix != NULL) {
4596 xmlErrValidNode(ctxt, elem, XML_DTD_INVALID_DEFAULT,
4597 "Syntax of value for attribute xmlns:%s of %s is not valid\n",
4598 ns->prefix, elem->name, NULL);
4600 xmlErrValidNode(ctxt, elem, XML_DTD_INVALID_DEFAULT,
4601 "Syntax of value for attribute xmlns of %s is not valid\n",
4602 elem->name, NULL, NULL);
4607 /* Validity constraint: Fixed Attribute Default */
4608 if (attrDecl->def == XML_ATTRIBUTE_FIXED) {
4609 if (!xmlStrEqual(value, attrDecl->defaultValue)) {
4610 if (ns->prefix != NULL) {
4611 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_DEFAULT,
4612 "Value for attribute xmlns:%s of %s is different from default \"%s\"\n",
4613 ns->prefix, elem->name, attrDecl->defaultValue);
4615 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_DEFAULT,
4616 "Value for attribute xmlns of %s is different from default \"%s\"\n",
4617 elem->name, attrDecl->defaultValue, NULL);
4623 /* Validity Constraint: ID uniqueness */
4624 if (attrDecl->atype == XML_ATTRIBUTE_ID) {
4625 if (xmlAddID(ctxt, doc, value, (xmlAttrPtr) ns) == NULL)
4629 if ((attrDecl->atype == XML_ATTRIBUTE_IDREF) ||
4630 (attrDecl->atype == XML_ATTRIBUTE_IDREFS)) {
4631 if (xmlAddRef(ctxt, doc, value, (xmlAttrPtr) ns) == NULL)
4635 /* Validity Constraint: Notation Attributes */
4636 if (attrDecl->atype == XML_ATTRIBUTE_NOTATION) {
4637 xmlEnumerationPtr tree = attrDecl->tree;
4638 xmlNotationPtr nota;
4640 /* First check that the given NOTATION was declared */
4641 nota = xmlGetDtdNotationDesc(doc->intSubset, value);
4643 nota = xmlGetDtdNotationDesc(doc->extSubset, value);
4646 if (ns->prefix != NULL) {
4647 xmlErrValidNode(ctxt, elem, XML_DTD_UNKNOWN_NOTATION,
4648 "Value \"%s\" for attribute xmlns:%s of %s is not a declared Notation\n",
4649 value, ns->prefix, elem->name);
4651 xmlErrValidNode(ctxt, elem, XML_DTD_UNKNOWN_NOTATION,
4652 "Value \"%s\" for attribute xmlns of %s is not a declared Notation\n",
4653 value, elem->name, NULL);
4658 /* Second, verify that it's among the list */
4659 while (tree != NULL) {
4660 if (xmlStrEqual(tree->name, value)) break;
4664 if (ns->prefix != NULL) {
4665 xmlErrValidNode(ctxt, elem, XML_DTD_NOTATION_VALUE,
4666 "Value \"%s\" for attribute xmlns:%s of %s is not among the enumerated notations\n",
4667 value, ns->prefix, elem->name);
4669 xmlErrValidNode(ctxt, elem, XML_DTD_NOTATION_VALUE,
4670 "Value \"%s\" for attribute xmlns of %s is not among the enumerated notations\n",
4671 value, elem->name, NULL);
4677 /* Validity Constraint: Enumeration */
4678 if (attrDecl->atype == XML_ATTRIBUTE_ENUMERATION) {
4679 xmlEnumerationPtr tree = attrDecl->tree;
4680 while (tree != NULL) {
4681 if (xmlStrEqual(tree->name, value)) break;
4685 if (ns->prefix != NULL) {
4686 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_VALUE,
4687 "Value \"%s\" for attribute xmlns:%s of %s is not among the enumerated set\n",
4688 value, ns->prefix, elem->name);
4690 xmlErrValidNode(ctxt, elem, XML_DTD_ATTRIBUTE_VALUE,
4691 "Value \"%s\" for attribute xmlns of %s is not among the enumerated set\n",
4692 value, elem->name, NULL);
4698 /* Fixed Attribute Default */
4699 if ((attrDecl->def == XML_ATTRIBUTE_FIXED) &&
4700 (!xmlStrEqual(attrDecl->defaultValue, value))) {
4701 if (ns->prefix != NULL) {
4702 xmlErrValidNode(ctxt, elem, XML_DTD_ELEM_NAMESPACE,
4703 "Value for attribute xmlns:%s of %s must be \"%s\"\n",
4704 ns->prefix, elem->name, attrDecl->defaultValue);
4706 xmlErrValidNode(ctxt, elem, XML_DTD_ELEM_NAMESPACE,
4707 "Value for attribute xmlns of %s must be \"%s\"\n",
4708 elem->name, attrDecl->defaultValue, NULL);
4713 /* Extra check for the attribute value */
4714 if (ns->prefix != NULL) {
4715 ret &= xmlValidateAttributeValue2(ctxt, doc, ns->prefix,
4716 attrDecl->atype, value);
4718 ret &= xmlValidateAttributeValue2(ctxt, doc, BAD_CAST "xmlns",
4719 attrDecl->atype, value);
4725 #ifndef LIBXML_REGEXP_ENABLED
4727 * xmlValidateSkipIgnorable:
4728 * @ctxt: the validation context
4729 * @child: the child list
4731 * Skip ignorable elements w.r.t. the validation process
4733 * returns the first element to consider for validation of the content model
4737 xmlValidateSkipIgnorable(xmlNodePtr child) {
4738 while (child != NULL) {
4739 switch (child->type) {
4740 /* These things are ignored (skipped) during validation. */
4742 case XML_COMMENT_NODE:
4743 case XML_XINCLUDE_START:
4744 case XML_XINCLUDE_END:
4745 child = child->next;
4748 if (xmlIsBlankNode(child))
4749 child = child->next;
4753 /* keep current node */
4762 * xmlValidateElementType:
4763 * @ctxt: the validation context
4765 * Try to validate the content model of an element internal function
4767 * returns 1 if valid or 0 ,-1 in case of error, -2 if an entity
4768 * reference is found and -3 if the validation succeeded but
4769 * the content model is not determinist.
4773 xmlValidateElementType(xmlValidCtxtPtr ctxt) {
4775 int determinist = 1;
4777 NODE = xmlValidateSkipIgnorable(NODE);
4778 if ((NODE == NULL) && (CONT == NULL))
4780 if ((NODE == NULL) &&
4781 ((CONT->ocur == XML_ELEMENT_CONTENT_MULT) ||
4782 (CONT->ocur == XML_ELEMENT_CONTENT_OPT))) {
4785 if (CONT == NULL) return(-1);
4786 if ((NODE != NULL) && (NODE->type == XML_ENTITY_REF_NODE))
4790 * We arrive here when more states need to be examined
4795 * We just recovered from a rollback generated by a possible
4796 * epsilon transition, go directly to the analysis phase
4798 if (STATE == ROLLBACK_PARENT) {
4799 DEBUG_VALID_MSG("restored parent branch");
4800 DEBUG_VALID_STATE(NODE, CONT)
4805 DEBUG_VALID_STATE(NODE, CONT)
4807 * we may have to save a backup state here. This is the equivalent
4808 * of handling epsilon transition in NFAs.
4810 if ((CONT != NULL) &&
4811 ((CONT->parent == NULL) ||
4812 (CONT->parent->type != XML_ELEMENT_CONTENT_OR)) &&
4813 ((CONT->ocur == XML_ELEMENT_CONTENT_MULT) ||
4814 (CONT->ocur == XML_ELEMENT_CONTENT_OPT) ||
4815 ((CONT->ocur == XML_ELEMENT_CONTENT_PLUS) && (OCCURRENCE)))) {
4816 DEBUG_VALID_MSG("saving parent branch");
4817 if (vstateVPush(ctxt, CONT, NODE, DEPTH, OCCURS, ROLLBACK_PARENT) < 0)
4823 * Check first if the content matches
4825 switch (CONT->type) {
4826 case XML_ELEMENT_CONTENT_PCDATA:
4828 DEBUG_VALID_MSG("pcdata failed no node");
4832 if (NODE->type == XML_TEXT_NODE) {
4833 DEBUG_VALID_MSG("pcdata found, skip to next");
4835 * go to next element in the content model
4836 * skipping ignorable elems
4840 NODE = xmlValidateSkipIgnorable(NODE);
4841 if ((NODE != NULL) &&
4842 (NODE->type == XML_ENTITY_REF_NODE))
4844 } while ((NODE != NULL) &&
4845 ((NODE->type != XML_ELEMENT_NODE) &&
4846 (NODE->type != XML_TEXT_NODE) &&
4847 (NODE->type != XML_CDATA_SECTION_NODE)));
4851 DEBUG_VALID_MSG("pcdata failed");
4856 case XML_ELEMENT_CONTENT_ELEMENT:
4858 DEBUG_VALID_MSG("element failed no node");
4862 ret = ((NODE->type == XML_ELEMENT_NODE) &&
4863 (xmlStrEqual(NODE->name, CONT->name)));
4865 if ((NODE->ns == NULL) || (NODE->ns->prefix == NULL)) {
4866 ret = (CONT->prefix == NULL);
4867 } else if (CONT->prefix == NULL) {
4870 ret = xmlStrEqual(NODE->ns->prefix, CONT->prefix);
4874 DEBUG_VALID_MSG("element found, skip to next");
4876 * go to next element in the content model
4877 * skipping ignorable elems
4881 NODE = xmlValidateSkipIgnorable(NODE);
4882 if ((NODE != NULL) &&
4883 (NODE->type == XML_ENTITY_REF_NODE))
4885 } while ((NODE != NULL) &&
4886 ((NODE->type != XML_ELEMENT_NODE) &&
4887 (NODE->type != XML_TEXT_NODE) &&
4888 (NODE->type != XML_CDATA_SECTION_NODE)));
4890 DEBUG_VALID_MSG("element failed");
4895 case XML_ELEMENT_CONTENT_OR:
4897 * Small optimization.
4899 if (CONT->c1->type == XML_ELEMENT_CONTENT_ELEMENT) {
4900 if ((NODE == NULL) ||
4901 (!xmlStrEqual(NODE->name, CONT->c1->name))) {
4906 if ((NODE->ns == NULL) || (NODE->ns->prefix == NULL)) {
4907 ret = (CONT->c1->prefix == NULL);
4908 } else if (CONT->c1->prefix == NULL) {
4911 ret = xmlStrEqual(NODE->ns->prefix, CONT->c1->prefix);
4921 * save the second branch 'or' branch
4923 DEBUG_VALID_MSG("saving 'or' branch");
4924 if (vstateVPush(ctxt, CONT->c2, NODE, (unsigned char)(DEPTH + 1),
4925 OCCURS, ROLLBACK_OR) < 0)
4930 case XML_ELEMENT_CONTENT_SEQ:
4932 * Small optimization.
4934 if ((CONT->c1->type == XML_ELEMENT_CONTENT_ELEMENT) &&
4935 ((CONT->c1->ocur == XML_ELEMENT_CONTENT_OPT) ||
4936 (CONT->c1->ocur == XML_ELEMENT_CONTENT_MULT))) {
4937 if ((NODE == NULL) ||
4938 (!xmlStrEqual(NODE->name, CONT->c1->name))) {
4943 if ((NODE->ns == NULL) || (NODE->ns->prefix == NULL)) {
4944 ret = (CONT->c1->prefix == NULL);
4945 } else if (CONT->c1->prefix == NULL) {
4948 ret = xmlStrEqual(NODE->ns->prefix, CONT->c1->prefix);
4962 * At this point handle going up in the tree
4965 DEBUG_VALID_MSG("error found returning");
4969 while (CONT != NULL) {
4971 * First do the analysis depending on the occurrence model at
4975 switch (CONT->ocur) {
4978 case XML_ELEMENT_CONTENT_ONCE:
4979 cur = ctxt->vstate->node;
4980 DEBUG_VALID_MSG("Once branch failed, rollback");
4981 if (vstateVPop(ctxt) < 0 ) {
4982 DEBUG_VALID_MSG("exhaustion, failed");
4985 if (cur != ctxt->vstate->node)
4988 case XML_ELEMENT_CONTENT_PLUS:
4989 if (OCCURRENCE == 0) {
4990 cur = ctxt->vstate->node;
4991 DEBUG_VALID_MSG("Plus branch failed, rollback");
4992 if (vstateVPop(ctxt) < 0 ) {
4993 DEBUG_VALID_MSG("exhaustion, failed");
4996 if (cur != ctxt->vstate->node)
5000 DEBUG_VALID_MSG("Plus branch found");
5003 case XML_ELEMENT_CONTENT_MULT:
5004 #ifdef DEBUG_VALID_ALGO
5005 if (OCCURRENCE == 0) {
5006 DEBUG_VALID_MSG("Mult branch failed");
5008 DEBUG_VALID_MSG("Mult branch found");
5013 case XML_ELEMENT_CONTENT_OPT:
5014 DEBUG_VALID_MSG("Option branch failed");
5019 switch (CONT->ocur) {
5020 case XML_ELEMENT_CONTENT_OPT:
5021 DEBUG_VALID_MSG("Option branch succeeded");
5024 case XML_ELEMENT_CONTENT_ONCE:
5025 DEBUG_VALID_MSG("Once branch succeeded");
5028 case XML_ELEMENT_CONTENT_PLUS:
5029 if (STATE == ROLLBACK_PARENT) {
5030 DEBUG_VALID_MSG("Plus branch rollback");
5035 DEBUG_VALID_MSG("Plus branch exhausted");
5039 DEBUG_VALID_MSG("Plus branch succeeded, continuing");
5042 case XML_ELEMENT_CONTENT_MULT:
5043 if (STATE == ROLLBACK_PARENT) {
5044 DEBUG_VALID_MSG("Mult branch rollback");
5049 DEBUG_VALID_MSG("Mult branch exhausted");
5053 DEBUG_VALID_MSG("Mult branch succeeded, continuing");
5054 /* SET_OCCURRENCE; */
5061 * Then act accordingly at the parent level
5064 if (CONT->parent == NULL)
5067 switch (CONT->parent->type) {
5068 case XML_ELEMENT_CONTENT_PCDATA:
5069 DEBUG_VALID_MSG("Error: parent pcdata");
5071 case XML_ELEMENT_CONTENT_ELEMENT:
5072 DEBUG_VALID_MSG("Error: parent element");
5074 case XML_ELEMENT_CONTENT_OR:
5076 DEBUG_VALID_MSG("Or succeeded");
5077 CONT = CONT->parent;
5080 DEBUG_VALID_MSG("Or failed");
5081 CONT = CONT->parent;
5085 case XML_ELEMENT_CONTENT_SEQ:
5087 DEBUG_VALID_MSG("Sequence failed");
5088 CONT = CONT->parent;
5090 } else if (CONT == CONT->parent->c1) {
5091 DEBUG_VALID_MSG("Sequence testing 2nd branch");
5092 CONT = CONT->parent->c2;
5095 DEBUG_VALID_MSG("Sequence succeeded");
5096 CONT = CONT->parent;
5104 cur = ctxt->vstate->node;
5105 DEBUG_VALID_MSG("Failed, remaining input, rollback");
5106 if (vstateVPop(ctxt) < 0 ) {
5107 DEBUG_VALID_MSG("exhaustion, failed");
5110 if (cur != ctxt->vstate->node)
5117 cur = ctxt->vstate->node;
5118 DEBUG_VALID_MSG("Failure, rollback");
5119 if (vstateVPop(ctxt) < 0 ) {
5120 DEBUG_VALID_MSG("exhaustion, failed");
5123 if (cur != ctxt->vstate->node)
5127 return(determinist);
5132 * xmlSnprintfElements:
5133 * @buf: an output buffer
5134 * @size: the size of the buffer
5135 * @content: An element
5136 * @glob: 1 if one must print the englobing parenthesis, 0 otherwise
5138 * This will dump the list of elements to the buffer
5139 * Intended just for the debug routine
5142 xmlSnprintfElements(char *buf, int size, xmlNodePtr node, int glob) {
5146 if (node == NULL) return;
5147 if (glob) strcat(buf, "(");
5149 while (cur != NULL) {
5151 if (size - len < 50) {
5152 if ((size - len > 4) && (buf[len - 1] != '.'))
5153 strcat(buf, " ...");
5156 switch (cur->type) {
5157 case XML_ELEMENT_NODE:
5158 if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
5159 if (size - len < xmlStrlen(cur->ns->prefix) + 10) {
5160 if ((size - len > 4) && (buf[len - 1] != '.'))
5161 strcat(buf, " ...");
5164 strcat(buf, (char *) cur->ns->prefix);
5167 if (size - len < xmlStrlen(cur->name) + 10) {
5168 if ((size - len > 4) && (buf[len - 1] != '.'))
5169 strcat(buf, " ...");
5172 strcat(buf, (char *) cur->name);
5173 if (cur->next != NULL)
5177 if (xmlIsBlankNode(cur))
5179 case XML_CDATA_SECTION_NODE:
5180 case XML_ENTITY_REF_NODE:
5181 strcat(buf, "CDATA");
5182 if (cur->next != NULL)
5185 case XML_ATTRIBUTE_NODE:
5186 case XML_DOCUMENT_NODE:
5187 #ifdef LIBXML_DOCB_ENABLED
5188 case XML_DOCB_DOCUMENT_NODE:
5190 case XML_HTML_DOCUMENT_NODE:
5191 case XML_DOCUMENT_TYPE_NODE:
5192 case XML_DOCUMENT_FRAG_NODE:
5193 case XML_NOTATION_NODE:
5194 case XML_NAMESPACE_DECL:
5196 if (cur->next != NULL)
5199 case XML_ENTITY_NODE:
5202 case XML_COMMENT_NODE:
5203 case XML_ELEMENT_DECL:
5204 case XML_ATTRIBUTE_DECL:
5205 case XML_ENTITY_DECL:
5206 case XML_XINCLUDE_START:
5207 case XML_XINCLUDE_END:
5212 if (glob) strcat(buf, ")");
5216 * xmlValidateElementContent:
5217 * @ctxt: the validation context
5218 * @child: the child list
5219 * @elemDecl: pointer to the element declaration
5220 * @warn: emit the error message
5221 * @parent: the parent element (for error reporting)
5223 * Try to validate the content model of an element
5225 * returns 1 if valid or 0 if not and -1 in case of error
5229 xmlValidateElementContent(xmlValidCtxtPtr ctxt, xmlNodePtr child,
5230 xmlElementPtr elemDecl, int warn, xmlNodePtr parent) {
5232 #ifndef LIBXML_REGEXP_ENABLED
5233 xmlNodePtr repl = NULL, last = NULL, tmp;
5236 xmlElementContentPtr cont;
5237 const xmlChar *name;
5239 if (elemDecl == NULL)
5241 cont = elemDecl->content;
5242 name = elemDecl->name;
5244 #ifdef LIBXML_REGEXP_ENABLED
5245 /* Build the regexp associated to the content model */
5246 if (elemDecl->contModel == NULL)
5247 ret = xmlValidBuildContentModel(ctxt, elemDecl);
5248 if (elemDecl->contModel == NULL) {
5251 xmlRegExecCtxtPtr exec;
5253 if (!xmlRegexpIsDeterminist(elemDecl->contModel)) {
5258 ctxt->nodeTab = NULL;
5259 exec = xmlRegNewExecCtxt(elemDecl->contModel, NULL, NULL);
5262 while (cur != NULL) {
5263 switch (cur->type) {
5264 case XML_ENTITY_REF_NODE:
5266 * Push the current node to be able to roll back
5267 * and process within the entity
5269 if ((cur->children != NULL) &&
5270 (cur->children->children != NULL)) {
5271 nodeVPush(ctxt, cur);
5272 cur = cur->children->children;
5277 if (xmlIsBlankNode(cur))
5281 case XML_CDATA_SECTION_NODE:
5285 case XML_ELEMENT_NODE:
5286 if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
5290 fullname = xmlBuildQName(cur->name,
5291 cur->ns->prefix, fn, 50);
5292 if (fullname == NULL) {
5296 ret = xmlRegExecPushString(exec, fullname, NULL);
5297 if ((fullname != fn) && (fullname != cur->name))
5300 ret = xmlRegExecPushString(exec, cur->name, NULL);
5307 * Switch to next element
5310 while (cur == NULL) {
5311 cur = nodeVPop(ctxt);
5317 ret = xmlRegExecPushString(exec, NULL, NULL);
5319 xmlRegFreeExecCtxt(exec);
5322 #else /* LIBXML_REGEXP_ENABLED */
5324 * Allocate the stack
5326 ctxt->vstateMax = 8;
5327 ctxt->vstateTab = (xmlValidState *) xmlMalloc(
5328 ctxt->vstateMax * sizeof(ctxt->vstateTab[0]));
5329 if (ctxt->vstateTab == NULL) {
5330 xmlVErrMemory(ctxt, "malloc failed");
5334 * The first entry in the stack is reserved to the current state
5338 ctxt->nodeTab = NULL;
5339 ctxt->vstate = &ctxt->vstateTab[0];
5346 ret = xmlValidateElementType(ctxt);
5347 if ((ret == -3) && (warn)) {
5348 xmlErrValidWarning(ctxt, child, XML_DTD_CONTENT_NOT_DETERMINIST,
5349 "Content model for Element %s is ambiguous\n",
5351 } else if (ret == -2) {
5353 * An entities reference appeared at this level.
5354 * Buid a minimal representation of this node content
5355 * sufficient to run the validation process on it
5357 DEBUG_VALID_MSG("Found an entity reference, linearizing");
5359 while (cur != NULL) {
5360 switch (cur->type) {
5361 case XML_ENTITY_REF_NODE:
5363 * Push the current node to be able to roll back
5364 * and process within the entity
5366 if ((cur->children != NULL) &&
5367 (cur->children->children != NULL)) {
5368 nodeVPush(ctxt, cur);
5369 cur = cur->children->children;
5374 if (xmlIsBlankNode(cur))
5376 /* no break on purpose */
5377 case XML_CDATA_SECTION_NODE:
5378 /* no break on purpose */
5379 case XML_ELEMENT_NODE:
5381 * Allocate a new node and minimally fills in
5384 tmp = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
5386 xmlVErrMemory(ctxt, "malloc failed");
5387 xmlFreeNodeList(repl);
5391 tmp->type = cur->type;
5392 tmp->name = cur->name;
5395 tmp->content = NULL;
5402 if (cur->type == XML_CDATA_SECTION_NODE) {
5404 * E59 spaces in CDATA does not match the
5407 tmp->content = xmlStrdup(BAD_CAST "CDATA");
5414 * Switch to next element
5417 while (cur == NULL) {
5418 cur = nodeVPop(ctxt);
5426 * Relaunch the validation
5428 ctxt->vstate = &ctxt->vstateTab[0];
5435 ret = xmlValidateElementType(ctxt);
5437 #endif /* LIBXML_REGEXP_ENABLED */
5438 if ((warn) && ((ret != 1) && (ret != -3))) {
5444 xmlSnprintfElementContent(&expr[0], 5000, cont, 1);
5446 #ifndef LIBXML_REGEXP_ENABLED
5448 xmlSnprintfElements(&list[0], 5000, repl, 1);
5450 #endif /* LIBXML_REGEXP_ENABLED */
5451 xmlSnprintfElements(&list[0], 5000, child, 1);
5454 xmlErrValidNode(ctxt, parent, XML_DTD_CONTENT_MODEL,
5455 "Element %s content does not follow the DTD, expecting %s, got %s\n",
5456 name, BAD_CAST expr, BAD_CAST list);
5458 xmlErrValidNode(ctxt, parent, XML_DTD_CONTENT_MODEL,
5459 "Element content does not follow the DTD, expecting %s, got %s\n",
5460 BAD_CAST expr, BAD_CAST list, NULL);
5464 xmlErrValidNode(ctxt, parent, XML_DTD_CONTENT_MODEL,
5465 "Element %s content does not follow the DTD\n",
5468 xmlErrValidNode(ctxt, parent, XML_DTD_CONTENT_MODEL,
5469 "Element content does not follow the DTD\n",
5478 #ifndef LIBXML_REGEXP_ENABLED
5481 * Deallocate the copy if done, and free up the validation stack
5483 while (repl != NULL) {
5488 ctxt->vstateMax = 0;
5489 if (ctxt->vstateTab != NULL) {
5490 xmlFree(ctxt->vstateTab);
5491 ctxt->vstateTab = NULL;
5496 if (ctxt->nodeTab != NULL) {
5497 xmlFree(ctxt->nodeTab);
5498 ctxt->nodeTab = NULL;
5505 * xmlValidateCdataElement:
5506 * @ctxt: the validation context
5507 * @doc: a document instance
5508 * @elem: an element instance
5510 * Check that an element follows #CDATA
5512 * returns 1 if valid or 0 otherwise
5515 xmlValidateOneCdataElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
5518 xmlNodePtr cur, child;
5520 if ((ctxt == NULL) || (doc == NULL) || (elem == NULL))
5523 child = elem->children;
5526 while (cur != NULL) {
5527 switch (cur->type) {
5528 case XML_ENTITY_REF_NODE:
5530 * Push the current node to be able to roll back
5531 * and process within the entity
5533 if ((cur->children != NULL) &&
5534 (cur->children->children != NULL)) {
5535 nodeVPush(ctxt, cur);
5536 cur = cur->children->children;
5540 case XML_COMMENT_NODE:
5543 case XML_CDATA_SECTION_NODE:
5550 * Switch to next element
5553 while (cur == NULL) {
5554 cur = nodeVPop(ctxt);
5563 if (ctxt->nodeTab != NULL) {
5564 xmlFree(ctxt->nodeTab);
5565 ctxt->nodeTab = NULL;
5571 * xmlValidateCheckMixed:
5572 * @ctxt: the validation context
5573 * @cont: the mixed content model
5574 * @qname: the qualified name as appearing in the serialization
5576 * Check if the given node is part of the content model.
5578 * Returns 1 if yes, 0 if no, -1 in case of error
5581 xmlValidateCheckMixed(xmlValidCtxtPtr ctxt,
5582 xmlElementContentPtr cont, const xmlChar *qname) {
5583 const xmlChar *name;
5585 name = xmlSplitQName3(qname, &plen);
5588 while (cont != NULL) {
5589 if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) {
5590 if ((cont->prefix == NULL) && (xmlStrEqual(cont->name, qname)))
5592 } else if ((cont->type == XML_ELEMENT_CONTENT_OR) &&
5593 (cont->c1 != NULL) &&
5594 (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)){
5595 if ((cont->c1->prefix == NULL) &&
5596 (xmlStrEqual(cont->c1->name, qname)))
5598 } else if ((cont->type != XML_ELEMENT_CONTENT_OR) ||
5599 (cont->c1 == NULL) ||
5600 (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)){
5601 xmlErrValid(NULL, XML_DTD_MIXED_CORRUPT,
5602 "Internal: MIXED struct corrupted\n",
5609 while (cont != NULL) {
5610 if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) {
5611 if ((cont->prefix != NULL) &&
5612 (xmlStrncmp(cont->prefix, qname, plen) == 0) &&
5613 (xmlStrEqual(cont->name, name)))
5615 } else if ((cont->type == XML_ELEMENT_CONTENT_OR) &&
5616 (cont->c1 != NULL) &&
5617 (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)){
5618 if ((cont->c1->prefix != NULL) &&
5619 (xmlStrncmp(cont->c1->prefix, qname, plen) == 0) &&
5620 (xmlStrEqual(cont->c1->name, name)))
5622 } else if ((cont->type != XML_ELEMENT_CONTENT_OR) ||
5623 (cont->c1 == NULL) ||
5624 (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)){
5625 xmlErrValid(ctxt, XML_DTD_MIXED_CORRUPT,
5626 "Internal: MIXED struct corrupted\n",
5637 * xmlValidGetElemDecl:
5638 * @ctxt: the validation context
5639 * @doc: a document instance
5640 * @elem: an element instance
5641 * @extsubset: pointer, (out) indicate if the declaration was found
5642 * in the external subset.
5644 * Finds a declaration associated to an element in the document.
5646 * returns the pointer to the declaration or NULL if not found.
5648 static xmlElementPtr
5649 xmlValidGetElemDecl(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
5650 xmlNodePtr elem, int *extsubset) {
5651 xmlElementPtr elemDecl = NULL;
5652 const xmlChar *prefix = NULL;
5654 if ((ctxt == NULL) || (doc == NULL) ||
5655 (elem == NULL) || (elem->name == NULL))
5657 if (extsubset != NULL)
5661 * Fetch the declaration for the qualified name
5663 if ((elem->ns != NULL) && (elem->ns->prefix != NULL))
5664 prefix = elem->ns->prefix;
5666 if (prefix != NULL) {
5667 elemDecl = xmlGetDtdQElementDesc(doc->intSubset,
5668 elem->name, prefix);
5669 if ((elemDecl == NULL) && (doc->extSubset != NULL)) {
5670 elemDecl = xmlGetDtdQElementDesc(doc->extSubset,
5671 elem->name, prefix);
5672 if ((elemDecl != NULL) && (extsubset != NULL))
5678 * Fetch the declaration for the non qualified name
5679 * This is "non-strict" validation should be done on the
5680 * full QName but in that case being flexible makes sense.
5682 if (elemDecl == NULL) {
5683 elemDecl = xmlGetDtdElementDesc(doc->intSubset, elem->name);
5684 if ((elemDecl == NULL) && (doc->extSubset != NULL)) {
5685 elemDecl = xmlGetDtdElementDesc(doc->extSubset, elem->name);
5686 if ((elemDecl != NULL) && (extsubset != NULL))
5690 if (elemDecl == NULL) {
5691 xmlErrValidNode(ctxt, elem,
5692 XML_DTD_UNKNOWN_ELEM,
5693 "No declaration for element %s\n",
5694 elem->name, NULL, NULL);
5699 #ifdef LIBXML_REGEXP_ENABLED
5701 * xmlValidatePushElement:
5702 * @ctxt: the validation context
5703 * @doc: a document instance
5704 * @elem: an element instance
5705 * @qname: the qualified name as appearing in the serialization
5707 * Push a new element start on the validation stack.
5709 * returns 1 if no validation problem was found or 0 otherwise
5712 xmlValidatePushElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
5713 xmlNodePtr elem, const xmlChar *qname) {
5715 xmlElementPtr eDecl;
5720 /* printf("PushElem %s\n", qname); */
5721 if ((ctxt->vstateNr > 0) && (ctxt->vstate != NULL)) {
5722 xmlValidStatePtr state = ctxt->vstate;
5723 xmlElementPtr elemDecl;
5726 * Check the new element agaisnt the content model of the new elem.
5728 if (state->elemDecl != NULL) {
5729 elemDecl = state->elemDecl;
5731 switch(elemDecl->etype) {
5732 case XML_ELEMENT_TYPE_UNDEFINED:
5735 case XML_ELEMENT_TYPE_EMPTY:
5736 xmlErrValidNode(ctxt, state->node,
5738 "Element %s was declared EMPTY this one has content\n",
5739 state->node->name, NULL, NULL);
5742 case XML_ELEMENT_TYPE_ANY:
5743 /* I don't think anything is required then */
5745 case XML_ELEMENT_TYPE_MIXED:
5746 /* simple case of declared as #PCDATA */
5747 if ((elemDecl->content != NULL) &&
5748 (elemDecl->content->type ==
5749 XML_ELEMENT_CONTENT_PCDATA)) {
5750 xmlErrValidNode(ctxt, state->node,
5752 "Element %s was declared #PCDATA but contains non text nodes\n",
5753 state->node->name, NULL, NULL);
5756 ret = xmlValidateCheckMixed(ctxt, elemDecl->content,
5759 xmlErrValidNode(ctxt, state->node,
5760 XML_DTD_INVALID_CHILD,
5761 "Element %s is not declared in %s list of possible children\n",
5762 qname, state->node->name, NULL);
5766 case XML_ELEMENT_TYPE_ELEMENT:
5769 * VC: Standalone Document Declaration
5770 * - element types with element content, if white space
5771 * occurs directly within any instance of those types.
5773 if (state->exec != NULL) {
5774 ret = xmlRegExecPushString(state->exec, qname, NULL);
5776 xmlErrValidNode(ctxt, state->node,
5777 XML_DTD_CONTENT_MODEL,
5778 "Element %s content does not follow the DTD, Misplaced %s\n",
5779 state->node->name, qname, NULL);
5789 eDecl = xmlValidGetElemDecl(ctxt, doc, elem, &extsubset);
5790 vstateVPush(ctxt, eDecl, elem);
5795 * xmlValidatePushCData:
5796 * @ctxt: the validation context
5797 * @data: some character data read
5798 * @len: the lenght of the data
5800 * check the CData parsed for validation in the current stack
5802 * returns 1 if no validation problem was found or 0 otherwise
5805 xmlValidatePushCData(xmlValidCtxtPtr ctxt, const xmlChar *data, int len) {
5808 /* printf("CDATA %s %d\n", data, len); */
5813 if ((ctxt->vstateNr > 0) && (ctxt->vstate != NULL)) {
5814 xmlValidStatePtr state = ctxt->vstate;
5815 xmlElementPtr elemDecl;
5818 * Check the new element agaisnt the content model of the new elem.
5820 if (state->elemDecl != NULL) {
5821 elemDecl = state->elemDecl;
5823 switch(elemDecl->etype) {
5824 case XML_ELEMENT_TYPE_UNDEFINED:
5827 case XML_ELEMENT_TYPE_EMPTY:
5828 xmlErrValidNode(ctxt, state->node,
5830 "Element %s was declared EMPTY this one has content\n",
5831 state->node->name, NULL, NULL);
5834 case XML_ELEMENT_TYPE_ANY:
5836 case XML_ELEMENT_TYPE_MIXED:
5838 case XML_ELEMENT_TYPE_ELEMENT:
5842 for (i = 0;i < len;i++) {
5843 if (!IS_BLANK_CH(data[i])) {
5844 xmlErrValidNode(ctxt, state->node,
5845 XML_DTD_CONTENT_MODEL,
5846 "Element %s content does not follow the DTD, Text not allowed\n",
5847 state->node->name, NULL, NULL);
5854 * VC: Standalone Document Declaration
5855 * element types with element content, if white space
5856 * occurs directly within any instance of those types.
5868 * xmlValidatePopElement:
5869 * @ctxt: the validation context
5870 * @doc: a document instance
5871 * @elem: an element instance
5872 * @qname: the qualified name as appearing in the serialization
5874 * Pop the element end from the validation stack.
5876 * returns 1 if no validation problem was found or 0 otherwise
5879 xmlValidatePopElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc ATTRIBUTE_UNUSED,
5880 xmlNodePtr elem ATTRIBUTE_UNUSED,
5881 const xmlChar *qname ATTRIBUTE_UNUSED) {
5886 /* printf("PopElem %s\n", qname); */
5887 if ((ctxt->vstateNr > 0) && (ctxt->vstate != NULL)) {
5888 xmlValidStatePtr state = ctxt->vstate;
5889 xmlElementPtr elemDecl;
5892 * Check the new element agaisnt the content model of the new elem.
5894 if (state->elemDecl != NULL) {
5895 elemDecl = state->elemDecl;
5897 if (elemDecl->etype == XML_ELEMENT_TYPE_ELEMENT) {
5898 if (state->exec != NULL) {
5899 ret = xmlRegExecPushString(state->exec, NULL, NULL);
5901 xmlErrValidNode(ctxt, state->node,
5902 XML_DTD_CONTENT_MODEL,
5903 "Element %s content does not follow the DTD, Expecting more child\n",
5904 state->node->name, NULL,NULL);
5907 * previous validation errors should not generate
5919 #endif /* LIBXML_REGEXP_ENABLED */
5922 * xmlValidateOneElement:
5923 * @ctxt: the validation context
5924 * @doc: a document instance
5925 * @elem: an element instance
5927 * Try to validate a single element and it's attributes,
5928 * basically it does the following checks as described by the
5929 * XML-1.0 recommendation:
5930 * - [ VC: Element Valid ]
5931 * - [ VC: Required Attribute ]
5932 * Then call xmlValidateOneAttribute() for each attribute present.
5934 * The ID/IDREF checkings are done separately
5936 * returns 1 if valid or 0 otherwise
5940 xmlValidateOneElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc,
5942 xmlElementPtr elemDecl = NULL;
5943 xmlElementContentPtr cont;
5944 xmlAttributePtr attr;
5947 const xmlChar *name;
5952 if (elem == NULL) return(0);
5953 switch (elem->type) {
5954 case XML_ATTRIBUTE_NODE:
5955 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
5956 "Attribute element not expected\n", NULL, NULL ,NULL);
5959 if (elem->children != NULL) {
5960 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
5961 "Text element has children !\n",
5965 if (elem->ns != NULL) {
5966 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
5967 "Text element has namespace !\n",
5971 if (elem->content == NULL) {
5972 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
5973 "Text element has no content !\n",
5978 case XML_XINCLUDE_START:
5979 case XML_XINCLUDE_END:
5981 case XML_CDATA_SECTION_NODE:
5982 case XML_ENTITY_REF_NODE:
5984 case XML_COMMENT_NODE:
5986 case XML_ENTITY_NODE:
5987 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
5988 "Entity element not expected\n", NULL, NULL ,NULL);
5990 case XML_NOTATION_NODE:
5991 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
5992 "Notation element not expected\n", NULL, NULL ,NULL);
5994 case XML_DOCUMENT_NODE:
5995 case XML_DOCUMENT_TYPE_NODE:
5996 case XML_DOCUMENT_FRAG_NODE:
5997 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
5998 "Document element not expected\n", NULL, NULL ,NULL);
6000 case XML_HTML_DOCUMENT_NODE:
6001 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
6002 "HTML Document not expected\n", NULL, NULL ,NULL);
6004 case XML_ELEMENT_NODE:
6007 xmlErrValidNode(ctxt, elem, XML_ERR_INTERNAL_ERROR,
6008 "unknown element type\n", NULL, NULL ,NULL);
6013 * Fetch the declaration
6015 elemDecl = xmlValidGetElemDecl(ctxt, doc, elem, &extsubset);
6016 if (elemDecl == NULL)
6020 * If vstateNr is not zero that means continuous validation is
6021 * activated, do not try to check the content model at that level.
6023 if (ctxt->vstateNr == 0) {
6024 /* Check that the element content matches the definition */
6025 switch (elemDecl->etype) {
6026 case XML_ELEMENT_TYPE_UNDEFINED:
6027 xmlErrValidNode(ctxt, elem, XML_DTD_UNKNOWN_ELEM,
6028 "No declaration for element %s\n",
6029 elem->name, NULL, NULL);
6031 case XML_ELEMENT_TYPE_EMPTY:
6032 if (elem->children != NULL) {
6033 xmlErrValidNode(ctxt, elem, XML_DTD_NOT_EMPTY,
6034 "Element %s was declared EMPTY this one has content\n",
6035 elem->name, NULL, NULL);
6039 case XML_ELEMENT_TYPE_ANY:
6040 /* I don't think anything is required then */
6042 case XML_ELEMENT_TYPE_MIXED:
6044 /* simple case of declared as #PCDATA */
6045 if ((elemDecl->content != NULL) &&
6046 (elemDecl->content->type == XML_ELEMENT_CONTENT_PCDATA)) {
6047 ret = xmlValidateOneCdataElement(ctxt, doc, elem);
6049 xmlErrValidNode(ctxt, elem, XML_DTD_NOT_PCDATA,
6050 "Element %s was declared #PCDATA but contains non text nodes\n",
6051 elem->name, NULL, NULL);
6055 child = elem->children;
6056 /* Hum, this start to get messy */
6057 while (child != NULL) {
6058 if (child->type == XML_ELEMENT_NODE) {
6060 if ((child->ns != NULL) && (child->ns->prefix != NULL)) {
6064 fullname = xmlBuildQName(child->name, child->ns->prefix,
6066 if (fullname == NULL)
6068 cont = elemDecl->content;
6069 while (cont != NULL) {
6070 if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) {
6071 if (xmlStrEqual(cont->name, fullname))
6073 } else if ((cont->type == XML_ELEMENT_CONTENT_OR) &&
6074 (cont->c1 != NULL) &&
6075 (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)){
6076 if (xmlStrEqual(cont->c1->name, fullname))
6078 } else if ((cont->type != XML_ELEMENT_CONTENT_OR) ||
6079 (cont->c1 == NULL) ||
6080 (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)){
6081 xmlErrValid(NULL, XML_DTD_MIXED_CORRUPT,
6082 "Internal: MIXED struct corrupted\n",
6088 if ((fullname != fn) && (fullname != child->name))
6093 cont = elemDecl->content;
6094 while (cont != NULL) {
6095 if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) {
6096 if (xmlStrEqual(cont->name, name)) break;
6097 } else if ((cont->type == XML_ELEMENT_CONTENT_OR) &&
6098 (cont->c1 != NULL) &&
6099 (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)) {
6100 if (xmlStrEqual(cont->c1->name, name)) break;
6101 } else if ((cont->type != XML_ELEMENT_CONTENT_OR) ||
6102 (cont->c1 == NULL) ||
6103 (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)) {
6104 xmlErrValid(ctxt, XML_DTD_MIXED_CORRUPT,
6105 "Internal: MIXED struct corrupted\n",
6112 xmlErrValidNode(ctxt, elem, XML_DTD_INVALID_CHILD,
6113 "Element %s is not declared in %s list of possible children\n",
6114 name, elem->name, NULL);
6119 child = child->next;
6122 case XML_ELEMENT_TYPE_ELEMENT:
6123 if ((doc->standalone == 1) && (extsubset == 1)) {
6125 * VC: Standalone Document Declaration
6126 * - element types with element content, if white space
6127 * occurs directly within any instance of those types.
6129 child = elem->children;
6130 while (child != NULL) {
6131 if (child->type == XML_TEXT_NODE) {
6132 const xmlChar *content = child->content;
6134 while (IS_BLANK_CH(*content))
6136 if (*content == 0) {
6137 xmlErrValidNode(ctxt, elem,
6138 XML_DTD_STANDALONE_WHITE_SPACE,
6139 "standalone: %s declared in the external subset contains white spaces nodes\n",
6140 elem->name, NULL, NULL);
6148 child = elem->children;
6149 cont = elemDecl->content;
6150 tmp = xmlValidateElementContent(ctxt, child, elemDecl, 1, elem);
6155 } /* not continuous */
6157 /* [ VC: Required Attribute ] */
6158 attr = elemDecl->attributes;
6159 while (attr != NULL) {
6160 if (attr->def == XML_ATTRIBUTE_REQUIRED) {
6163 if ((attr->prefix == NULL) &&
6164 (xmlStrEqual(attr->name, BAD_CAST "xmlns"))) {
6168 while (ns != NULL) {
6169 if (ns->prefix == NULL)
6173 } else if (xmlStrEqual(attr->prefix, BAD_CAST "xmlns")) {
6177 while (ns != NULL) {
6178 if (xmlStrEqual(attr->name, ns->prefix))
6185 attrib = elem->properties;
6186 while (attrib != NULL) {
6187 if (xmlStrEqual(attrib->name, attr->name)) {
6188 if (attr->prefix != NULL) {
6189 xmlNsPtr nameSpace = attrib->ns;
6191 if (nameSpace == NULL)
6192 nameSpace = elem->ns;
6194 * qualified names handling is problematic, having a
6195 * different prefix should be possible but DTDs don't
6196 * allow to define the URI instead of the prefix :-(
6198 if (nameSpace == NULL) {
6201 } else if (!xmlStrEqual(nameSpace->prefix,
6209 * We should allow applications to define namespaces
6210 * for their application even if the DTD doesn't
6211 * carry one, otherwise, basically we would always
6217 attrib = attrib->next;
6220 if (qualified == -1) {
6221 if (attr->prefix == NULL) {
6222 xmlErrValidNode(ctxt, elem, XML_DTD_MISSING_ATTRIBUTE,
6223 "Element %s does not carry attribute %s\n",
6224 elem->name, attr->name, NULL);
6227 xmlErrValidNode(ctxt, elem, XML_DTD_MISSING_ATTRIBUTE,
6228 "Element %s does not carry attribute %s:%s\n",
6229 elem->name, attr->prefix,attr->name);
6232 } else if (qualified == 0) {
6233 xmlErrValidWarning(ctxt, elem, XML_DTD_NO_PREFIX,
6234 "Element %s required attribute %s:%s has no prefix\n",
6235 elem->name, attr->prefix, attr->name);
6236 } else if (qualified == 1) {
6237 xmlErrValidWarning(ctxt, elem, XML_DTD_DIFFERENT_PREFIX,
6238 "Element %s required attribute %s:%s has different prefix\n",
6239 elem->name, attr->prefix, attr->name);
6241 } else if (attr->def == XML_ATTRIBUTE_FIXED) {
6243 * Special tests checking #FIXED namespace declarations
6244 * have the right value since this is not done as an
6245 * attribute checking
6247 if ((attr->prefix == NULL) &&
6248 (xmlStrEqual(attr->name, BAD_CAST "xmlns"))) {
6252 while (ns != NULL) {
6253 if (ns->prefix == NULL) {
6254 if (!xmlStrEqual(attr->defaultValue, ns->href)) {
6255 xmlErrValidNode(ctxt, elem,
6256 XML_DTD_ELEM_DEFAULT_NAMESPACE,
6257 "Element %s namespace name for default namespace does not match the DTD\n",
6258 elem->name, NULL, NULL);
6265 } else if (xmlStrEqual(attr->prefix, BAD_CAST "xmlns")) {
6269 while (ns != NULL) {
6270 if (xmlStrEqual(attr->name, ns->prefix)) {
6271 if (!xmlStrEqual(attr->defaultValue, ns->href)) {
6272 xmlErrValidNode(ctxt, elem, XML_DTD_ELEM_NAMESPACE,
6273 "Element %s namespace name for %s does not match the DTD\n",
6274 elem->name, ns->prefix, NULL);
6291 * @ctxt: the validation context
6292 * @doc: a document instance
6294 * Try to validate a the root element
6295 * basically it does the following check as described by the
6296 * XML-1.0 recommendation:
6297 * - [ VC: Root Element Type ]
6298 * it doesn't try to recurse or apply other check to the element
6300 * returns 1 if valid or 0 otherwise
6304 xmlValidateRoot(xmlValidCtxtPtr ctxt, xmlDocPtr doc) {
6308 if (doc == NULL) return(0);
6310 root = xmlDocGetRootElement(doc);
6311 if ((root == NULL) || (root->name == NULL)) {
6312 xmlErrValid(ctxt, XML_DTD_NO_ROOT,
6313 "no root element\n", NULL);
6318 * When doing post validation against a separate DTD, those may
6319 * no internal subset has been generated
6321 if ((doc->intSubset != NULL) &&
6322 (doc->intSubset->name != NULL)) {
6324 * Check first the document root against the NQName
6326 if (!xmlStrEqual(doc->intSubset->name, root->name)) {
6327 if ((root->ns != NULL) && (root->ns->prefix != NULL)) {
6331 fullname = xmlBuildQName(root->name, root->ns->prefix, fn, 50);
6332 if (fullname == NULL) {
6333 xmlVErrMemory(ctxt, NULL);
6336 ret = xmlStrEqual(doc->intSubset->name, fullname);
6337 if ((fullname != fn) && (fullname != root->name))
6342 if ((xmlStrEqual(doc->intSubset->name, BAD_CAST "HTML")) &&
6343 (xmlStrEqual(root->name, BAD_CAST "html")))
6345 xmlErrValidNode(ctxt, root, XML_DTD_ROOT_NAME,
6346 "root and DTD name do not match '%s' and '%s'\n",
6347 root->name, doc->intSubset->name, NULL);
6357 * xmlValidateElement:
6358 * @ctxt: the validation context
6359 * @doc: a document instance
6360 * @elem: an element instance
6362 * Try to validate the subtree under an element
6364 * returns 1 if valid or 0 otherwise
6368 xmlValidateElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc, xmlNodePtr elem) {
6372 const xmlChar *value;
6375 if (elem == NULL) return(0);
6378 * XInclude elements were added after parsing in the infoset,
6379 * they don't really mean anything validation wise.
6381 if ((elem->type == XML_XINCLUDE_START) ||
6382 (elem->type == XML_XINCLUDE_END))
6388 * Entities references have to be handled separately
6390 if (elem->type == XML_ENTITY_REF_NODE) {
6394 ret &= xmlValidateOneElement(ctxt, doc, elem);
6395 if (elem->type == XML_ELEMENT_NODE) {
6396 attr = elem->properties;
6397 while (attr != NULL) {
6398 value = xmlNodeListGetString(doc, attr->children, 0);
6399 ret &= xmlValidateOneAttribute(ctxt, doc, elem, attr, value);
6401 xmlFree((char *)value);
6405 while (ns != NULL) {
6406 if (elem->ns == NULL)
6407 ret &= xmlValidateOneNamespace(ctxt, doc, elem, NULL,
6410 ret &= xmlValidateOneNamespace(ctxt, doc, elem,
6411 elem->ns->prefix, ns, ns->href);
6415 child = elem->children;
6416 while (child != NULL) {
6417 ret &= xmlValidateElement(ctxt, doc, child);
6418 child = child->next;
6426 * @ref: A reference to be validated
6427 * @ctxt: Validation context
6428 * @name: Name of ID we are searching for
6432 xmlValidateRef(xmlRefPtr ref, xmlValidCtxtPtr ctxt,
6433 const xmlChar *name) {
6439 if ((ref->attr == NULL) && (ref->name == NULL))
6443 xmlChar *dup, *str = NULL, *cur, save;
6445 dup = xmlStrdup(name);
6453 while ((*cur != 0) && (!IS_BLANK_CH(*cur))) cur++;
6456 id = xmlGetID(ctxt->doc, str);
6458 xmlErrValidNodeNr(ctxt, NULL, XML_DTD_UNKNOWN_ID,
6459 "attribute %s line %d references an unknown ID \"%s\"\n",
6460 ref->name, ref->lineno, str);
6466 while (IS_BLANK_CH(*cur)) cur++;
6469 } else if (attr->atype == XML_ATTRIBUTE_IDREF) {
6470 id = xmlGetID(ctxt->doc, name);
6472 xmlErrValidNode(ctxt, attr->parent, XML_DTD_UNKNOWN_ID,
6473 "IDREF attribute %s references an unknown ID \"%s\"\n",
6474 attr->name, name, NULL);
6477 } else if (attr->atype == XML_ATTRIBUTE_IDREFS) {
6478 xmlChar *dup, *str = NULL, *cur, save;
6480 dup = xmlStrdup(name);
6482 xmlVErrMemory(ctxt, "IDREFS split");
6489 while ((*cur != 0) && (!IS_BLANK_CH(*cur))) cur++;
6492 id = xmlGetID(ctxt->doc, str);
6494 xmlErrValidNode(ctxt, attr->parent, XML_DTD_UNKNOWN_ID,
6495 "IDREFS attribute %s references an unknown ID \"%s\"\n",
6496 attr->name, str, NULL);
6502 while (IS_BLANK_CH(*cur)) cur++;
6509 * xmlWalkValidateList:
6510 * @data: Contents of current link
6511 * @user: Value supplied by the user
6513 * Returns 0 to abort the walk or 1 to continue
6516 xmlWalkValidateList(const void *data, const void *user)
6518 xmlValidateMemoPtr memo = (xmlValidateMemoPtr)user;
6519 xmlValidateRef((xmlRefPtr)data, memo->ctxt, memo->name);
6524 * xmlValidateCheckRefCallback:
6525 * @ref_list: List of references
6526 * @ctxt: Validation context
6527 * @name: Name of ID we are searching for
6531 xmlValidateCheckRefCallback(xmlListPtr ref_list, xmlValidCtxtPtr ctxt,
6532 const xmlChar *name) {
6533 xmlValidateMemo memo;
6535 if (ref_list == NULL)
6540 xmlListWalk(ref_list, xmlWalkValidateList, &memo);
6545 * xmlValidateDocumentFinal:
6546 * @ctxt: the validation context
6547 * @doc: a document instance
6549 * Does the final step for the document validation once all the
6550 * incremental validation steps have been completed
6552 * basically it does the following checks described by the XML Rec
6554 * Check all the IDREF/IDREFS attributes definition for validity
6556 * returns 1 if valid or 0 otherwise
6560 xmlValidateDocumentFinal(xmlValidCtxtPtr ctxt, xmlDocPtr doc) {
6561 xmlRefTablePtr table;
6567 xmlErrValid(ctxt, XML_DTD_NO_DOC,
6568 "xmlValidateDocumentFinal: doc == NULL\n", NULL);
6572 /* trick to get correct line id report */
6573 save = ctxt->finishDtd;
6574 ctxt->finishDtd = 0;
6577 * Check all the NOTATION/NOTATIONS attributes
6580 * Check all the ENTITY/ENTITIES attributes definition for validity
6583 * Check all the IDREF/IDREFS attributes definition for validity
6585 table = (xmlRefTablePtr) doc->refs;
6588 xmlHashScan(table, (xmlHashScanner) xmlValidateCheckRefCallback, ctxt);
6590 ctxt->finishDtd = save;
6591 return(ctxt->valid);
6596 * @ctxt: the validation context
6597 * @doc: a document instance
6598 * @dtd: a dtd instance
6600 * Try to validate the document against the dtd instance
6602 * Basically it does check all the definitions in the DtD.
6603 * Note the the internal subset (if present) is de-coupled
6604 * (i.e. not used), which could give problems if ID or IDREF
6607 * returns 1 if valid or 0 otherwise
6611 xmlValidateDtd(xmlValidCtxtPtr ctxt, xmlDocPtr doc, xmlDtdPtr dtd) {
6613 xmlDtdPtr oldExt, oldInt;
6616 if (dtd == NULL) return(0);
6617 if (doc == NULL) return(0);
6618 oldExt = doc->extSubset;
6619 oldInt = doc->intSubset;
6620 doc->extSubset = dtd;
6621 doc->intSubset = NULL;
6622 ret = xmlValidateRoot(ctxt, doc);
6624 doc->extSubset = oldExt;
6625 doc->intSubset = oldInt;
6628 if (doc->ids != NULL) {
6629 xmlFreeIDTable(doc->ids);
6632 if (doc->refs != NULL) {
6633 xmlFreeRefTable(doc->refs);
6636 root = xmlDocGetRootElement(doc);
6637 ret = xmlValidateElement(ctxt, doc, root);
6638 ret &= xmlValidateDocumentFinal(ctxt, doc);
6639 doc->extSubset = oldExt;
6640 doc->intSubset = oldInt;
6645 xmlValidateNotationCallback(xmlEntityPtr cur, xmlValidCtxtPtr ctxt,
6646 const xmlChar *name ATTRIBUTE_UNUSED) {
6649 if (cur->etype == XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) {
6650 xmlChar *notation = cur->content;
6652 if (notation != NULL) {
6655 ret = xmlValidateNotationUse(ctxt, cur->doc, notation);
6664 xmlValidateAttributeCallback(xmlAttributePtr cur, xmlValidCtxtPtr ctxt,
6665 const xmlChar *name ATTRIBUTE_UNUSED) {
6668 xmlElementPtr elem = NULL;
6672 switch (cur->atype) {
6673 case XML_ATTRIBUTE_CDATA:
6674 case XML_ATTRIBUTE_ID:
6675 case XML_ATTRIBUTE_IDREF :
6676 case XML_ATTRIBUTE_IDREFS:
6677 case XML_ATTRIBUTE_NMTOKEN:
6678 case XML_ATTRIBUTE_NMTOKENS:
6679 case XML_ATTRIBUTE_ENUMERATION:
6681 case XML_ATTRIBUTE_ENTITY:
6682 case XML_ATTRIBUTE_ENTITIES:
6683 case XML_ATTRIBUTE_NOTATION:
6684 if (cur->defaultValue != NULL) {
6686 ret = xmlValidateAttributeValue2(ctxt, ctxt->doc, cur->name,
6687 cur->atype, cur->defaultValue);
6688 if ((ret == 0) && (ctxt->valid == 1))
6691 if (cur->tree != NULL) {
6692 xmlEnumerationPtr tree = cur->tree;
6693 while (tree != NULL) {
6694 ret = xmlValidateAttributeValue2(ctxt, ctxt->doc,
6695 cur->name, cur->atype, tree->name);
6696 if ((ret == 0) && (ctxt->valid == 1))
6702 if (cur->atype == XML_ATTRIBUTE_NOTATION) {
6704 if (cur->elem == NULL) {
6705 xmlErrValid(ctxt, XML_ERR_INTERNAL_ERROR,
6706 "xmlValidateAttributeCallback(%s): internal error\n",
6707 (const char *) cur->name);
6712 elem = xmlGetDtdElementDesc(doc->intSubset, cur->elem);
6713 if ((elem == NULL) && (doc != NULL))
6714 elem = xmlGetDtdElementDesc(doc->extSubset, cur->elem);
6715 if ((elem == NULL) && (cur->parent != NULL) &&
6716 (cur->parent->type == XML_DTD_NODE))
6717 elem = xmlGetDtdElementDesc((xmlDtdPtr) cur->parent, cur->elem);
6719 xmlErrValidNode(ctxt, NULL, XML_DTD_UNKNOWN_ELEM,
6720 "attribute %s: could not find decl for element %s\n",
6721 cur->name, cur->elem, NULL);
6724 if (elem->etype == XML_ELEMENT_TYPE_EMPTY) {
6725 xmlErrValidNode(ctxt, NULL, XML_DTD_EMPTY_NOTATION,
6726 "NOTATION attribute %s declared for EMPTY element %s\n",
6727 cur->name, cur->elem, NULL);
6734 * xmlValidateDtdFinal:
6735 * @ctxt: the validation context
6736 * @doc: a document instance
6738 * Does the final step for the dtds validation once all the
6739 * subsets have been parsed
6741 * basically it does the following checks described by the XML Rec
6742 * - check that ENTITY and ENTITIES type attributes default or
6743 * possible values matches one of the defined entities.
6744 * - check that NOTATION type attributes default or
6745 * possible values matches one of the defined notations.
6747 * returns 1 if valid or 0 if invalid and -1 if not well-formed
6751 xmlValidateDtdFinal(xmlValidCtxtPtr ctxt, xmlDocPtr doc) {
6753 xmlAttributeTablePtr table;
6754 xmlEntitiesTablePtr entities;
6756 if ((doc == NULL) || (ctxt == NULL)) return(0);
6757 if ((doc->intSubset == NULL) && (doc->extSubset == NULL))
6761 dtd = doc->intSubset;
6762 if ((dtd != NULL) && (dtd->attributes != NULL)) {
6763 table = (xmlAttributeTablePtr) dtd->attributes;
6764 xmlHashScan(table, (xmlHashScanner) xmlValidateAttributeCallback, ctxt);
6766 if ((dtd != NULL) && (dtd->entities != NULL)) {
6767 entities = (xmlEntitiesTablePtr) dtd->entities;
6768 xmlHashScan(entities, (xmlHashScanner) xmlValidateNotationCallback,
6771 dtd = doc->extSubset;
6772 if ((dtd != NULL) && (dtd->attributes != NULL)) {
6773 table = (xmlAttributeTablePtr) dtd->attributes;
6774 xmlHashScan(table, (xmlHashScanner) xmlValidateAttributeCallback, ctxt);
6776 if ((dtd != NULL) && (dtd->entities != NULL)) {
6777 entities = (xmlEntitiesTablePtr) dtd->entities;
6778 xmlHashScan(entities, (xmlHashScanner) xmlValidateNotationCallback,
6781 return(ctxt->valid);
6785 * xmlValidateDocument:
6786 * @ctxt: the validation context
6787 * @doc: a document instance
6789 * Try to validate the document instance
6791 * basically it does the all the checks described by the XML Rec
6792 * i.e. validates the internal and external subset (if present)
6793 * and validate the document tree.
6795 * returns 1 if valid or 0 otherwise
6799 xmlValidateDocument(xmlValidCtxtPtr ctxt, xmlDocPtr doc) {
6805 if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) {
6806 xmlErrValid(ctxt, XML_DTD_NO_DTD,
6807 "no DTD found!\n", NULL);
6810 if ((doc->intSubset != NULL) && ((doc->intSubset->SystemID != NULL) ||
6811 (doc->intSubset->ExternalID != NULL)) && (doc->extSubset == NULL)) {
6813 if (doc->intSubset->SystemID != NULL) {
6814 sysID = xmlBuildURI(doc->intSubset->SystemID,
6816 if (sysID == NULL) {
6817 xmlErrValid(ctxt, XML_DTD_LOAD_ERROR,
6818 "Could not build URI for external subset \"%s\"\n",
6819 (const char *) doc->intSubset->SystemID);
6824 doc->extSubset = xmlParseDTD(doc->intSubset->ExternalID,
6825 (const xmlChar *)sysID);
6828 if (doc->extSubset == NULL) {
6829 if (doc->intSubset->SystemID != NULL) {
6830 xmlErrValid(ctxt, XML_DTD_LOAD_ERROR,
6831 "Could not load the external subset \"%s\"\n",
6832 (const char *) doc->intSubset->SystemID);
6834 xmlErrValid(ctxt, XML_DTD_LOAD_ERROR,
6835 "Could not load the external subset \"%s\"\n",
6836 (const char *) doc->intSubset->ExternalID);
6842 if (doc->ids != NULL) {
6843 xmlFreeIDTable(doc->ids);
6846 if (doc->refs != NULL) {
6847 xmlFreeRefTable(doc->refs);
6850 ret = xmlValidateDtdFinal(ctxt, doc);
6851 if (!xmlValidateRoot(ctxt, doc)) return(0);
6853 root = xmlDocGetRootElement(doc);
6854 ret &= xmlValidateElement(ctxt, doc, root);
6855 ret &= xmlValidateDocumentFinal(ctxt, doc);
6859 /************************************************************************
6861 * Routines for dynamic validation editing *
6863 ************************************************************************/
6866 * xmlValidGetPotentialChildren:
6867 * @ctree: an element content tree
6868 * @names: an array to store the list of child names
6869 * @len: a pointer to the number of element in the list
6870 * @max: the size of the array
6872 * Build/extend a list of potential children allowed by the content tree
6874 * returns the number of element in the list, or -1 in case of error.
6878 xmlValidGetPotentialChildren(xmlElementContent *ctree,
6879 const xmlChar **names,
6880 int *len, int max) {
6883 if ((ctree == NULL) || (names == NULL) || (len == NULL))
6885 if (*len >= max) return(*len);
6887 switch (ctree->type) {
6888 case XML_ELEMENT_CONTENT_PCDATA:
6889 for (i = 0; i < *len;i++)
6890 if (xmlStrEqual(BAD_CAST "#PCDATA", names[i])) return(*len);
6891 names[(*len)++] = BAD_CAST "#PCDATA";
6893 case XML_ELEMENT_CONTENT_ELEMENT:
6894 for (i = 0; i < *len;i++)
6895 if (xmlStrEqual(ctree->name, names[i])) return(*len);
6896 names[(*len)++] = ctree->name;
6898 case XML_ELEMENT_CONTENT_SEQ:
6899 xmlValidGetPotentialChildren(ctree->c1, names, len, max);
6900 xmlValidGetPotentialChildren(ctree->c2, names, len, max);
6902 case XML_ELEMENT_CONTENT_OR:
6903 xmlValidGetPotentialChildren(ctree->c1, names, len, max);
6904 xmlValidGetPotentialChildren(ctree->c2, names, len, max);
6912 * Dummy function to suppress messages while we try out valid elements
6914 static void XMLCDECL xmlNoValidityErr(void *ctx ATTRIBUTE_UNUSED,
6915 const char *msg ATTRIBUTE_UNUSED, ...) {
6920 * xmlValidGetValidElements:
6921 * @prev: an element to insert after
6922 * @next: an element to insert next
6923 * @names: an array to store the list of child names
6924 * @max: the size of the array
6926 * This function returns the list of authorized children to insert
6927 * within an existing tree while respecting the validity constraints
6928 * forced by the Dtd. The insertion point is defined using @prev and
6929 * @next in the following ways:
6930 * to insert before 'node': xmlValidGetValidElements(node->prev, node, ...
6931 * to insert next 'node': xmlValidGetValidElements(node, node->next, ...
6932 * to replace 'node': xmlValidGetValidElements(node->prev, node->next, ...
6933 * to prepend a child to 'node': xmlValidGetValidElements(NULL, node->childs,
6934 * to append a child to 'node': xmlValidGetValidElements(node->last, NULL, ...
6936 * pointers to the element names are inserted at the beginning of the array
6937 * and do not need to be freed.
6939 * returns the number of element in the list, or -1 in case of error. If
6940 * the function returns the value @max the caller is invited to grow the
6941 * receiving array and retry.
6945 xmlValidGetValidElements(xmlNode *prev, xmlNode *next, const xmlChar **names,
6948 int nb_valid_elements = 0;
6949 const xmlChar *elements[256];
6950 int nb_elements = 0, i;
6951 const xmlChar *name;
6959 xmlNode *parent_childs;
6960 xmlNode *parent_last;
6962 xmlElement *element_desc;
6964 if (prev == NULL && next == NULL)
6967 if (names == NULL) return(-1);
6968 if (max <= 0) return(-1);
6970 memset(&vctxt, 0, sizeof (xmlValidCtxt));
6971 vctxt.error = xmlNoValidityErr; /* this suppresses err/warn output */
6973 nb_valid_elements = 0;
6974 ref_node = prev ? prev : next;
6975 parent = ref_node->parent;
6978 * Retrieves the parent element declaration
6980 element_desc = xmlGetDtdElementDesc(parent->doc->intSubset,
6982 if ((element_desc == NULL) && (parent->doc->extSubset != NULL))
6983 element_desc = xmlGetDtdElementDesc(parent->doc->extSubset,
6985 if (element_desc == NULL) return(-1);
6988 * Do a backup of the current tree structure
6990 prev_next = prev ? prev->next : NULL;
6991 next_prev = next ? next->prev : NULL;
6992 parent_childs = parent->children;
6993 parent_last = parent->last;
6996 * Creates a dummy node and insert it into the tree
6998 test_node = xmlNewDocNode (ref_node->doc, NULL, BAD_CAST "<!dummy?>", NULL);
6999 test_node->parent = parent;
7000 test_node->prev = prev;
7001 test_node->next = next;
7002 name = test_node->name;
7004 if (prev) prev->next = test_node;
7005 else parent->children = test_node;
7007 if (next) next->prev = test_node;
7008 else parent->last = test_node;
7011 * Insert each potential child node and check if the parent is
7014 nb_elements = xmlValidGetPotentialChildren(element_desc->content,
7015 elements, &nb_elements, 256);
7017 for (i = 0;i < nb_elements;i++) {
7018 test_node->name = elements[i];
7019 if (xmlValidateOneElement(&vctxt, parent->doc, parent)) {
7022 for (j = 0; j < nb_valid_elements;j++)
7023 if (xmlStrEqual(elements[i], names[j])) break;
7024 names[nb_valid_elements++] = elements[i];
7025 if (nb_valid_elements >= max) break;
7030 * Restore the tree structure
7032 if (prev) prev->next = prev_next;
7033 if (next) next->prev = next_prev;
7034 parent->children = parent_childs;
7035 parent->last = parent_last;
7038 * Free up the dummy node
7040 test_node->name = name;
7041 xmlFreeNode(test_node);
7043 return(nb_valid_elements);
7045 #endif /* LIBXML_VALID_ENABLED */
7047 #define bottom_valid
7048 #include "elfgcchack.h"