1 /*
2 * xmlreader.c: implements the xmlTextReader streaming node API
3 *
4 * NOTE:
5 * XmlTextReader.Normalization Property won't be supported, since
6 * it makes the parser non compliant to the XML recommendation
7 *
8 * See Copyright for the status of this software.
9 *
10 * daniel@veillard.com
11 */
12
13 /*
14 * TODOs:
15 * - XML Schemas validation
16 */
17 #define IN_LIBXML
18 #include "libxml.h"
19
20 #ifdef LIBXML_READER_ENABLED
21 #include <string.h> /* for memset() only ! */
22 #include <stdarg.h>
23
24 #ifdef HAVE_CTYPE_H
25 #include <ctype.h>
26 #endif
27 #ifdef HAVE_STDLIB_H
28 #include <stdlib.h>
29 #endif
30
31 #include <libxml/xmlmemory.h>
32 #include <libxml/xmlIO.h>
33 #include <libxml/xmlreader.h>
34 #include <libxml/parserInternals.h>
35 #ifdef LIBXML_SCHEMAS_ENABLED
36 #include <libxml/relaxng.h>
37 #include <libxml/xmlschemas.h>
38 #endif
39 #include <libxml/uri.h>
40 #ifdef LIBXML_XINCLUDE_ENABLED
41 #include <libxml/xinclude.h>
42 #endif
43 #ifdef LIBXML_PATTERN_ENABLED
44 #include <libxml/pattern.h>
45 #endif
46
47 #define MAX_ERR_MSG_SIZE 64000
48
49 /*
50 * The following VA_COPY was coded following an example in
51 * the Samba project. It may not be sufficient for some
52 * esoteric implementations of va_list (i.e. it may need
53 * something involving a memcpy) but (hopefully) will be
54 * sufficient for libxml2.
55 */
56 #ifndef VA_COPY
57 #ifdef HAVE_VA_COPY
58 #define VA_COPY(dest, src) va_copy(dest, src)
59 #else
60 #ifdef HAVE___VA_COPY
61 #define VA_COPY(dest,src) __va_copy(dest, src)
62 #else
63 #define VA_COPY(dest,src) (dest) = (src)
64 #endif
65 #endif
66 #endif
67
68 /* #define DEBUG_CALLBACKS */
69 /* #define DEBUG_READER */
70
71 /**
72 * TODO:
73 *
74 * macro to flag unimplemented blocks
75 */
76 #define TODO \
77 xmlGenericError(xmlGenericErrorContext, \
78 "Unimplemented block at %s:%d\n", \
79 __FILE__, __LINE__);
80
81 #ifdef DEBUG_READER
82 #define DUMP_READER xmlTextReaderDebug(reader);
83 #else
84 #define DUMP_READER
85 #endif
86
87 #define CHUNK_SIZE 512
88 /************************************************************************
89 * *
90 * The parser: maps the Text Reader API on top of the existing *
91 * parsing routines building a tree *
92 * *
93 ************************************************************************/
94
95 #define XML_TEXTREADER_INPUT 1
96 #define XML_TEXTREADER_CTXT 2
97
98 typedef enum {
99 XML_TEXTREADER_NONE = -1,
100 XML_TEXTREADER_START= 0,
101 XML_TEXTREADER_ELEMENT= 1,
102 XML_TEXTREADER_END= 2,
103 XML_TEXTREADER_EMPTY= 3,
104 XML_TEXTREADER_BACKTRACK= 4,
105 XML_TEXTREADER_DONE= 5,
106 XML_TEXTREADER_ERROR= 6
107 } xmlTextReaderState;
108
109 typedef enum {
110 XML_TEXTREADER_NOT_VALIDATE = 0,
111 XML_TEXTREADER_VALIDATE_DTD = 1,
112 XML_TEXTREADER_VALIDATE_RNG = 2,
113 XML_TEXTREADER_VALIDATE_XSD = 4
114 } xmlTextReaderValidate;
115
116 struct _xmlTextReader {
117 int mode; /* the parsing mode */
118 xmlDocPtr doc; /* when walking an existing doc */
119 xmlTextReaderValidate validate;/* is there any validation */
120 int allocs; /* what structure were deallocated */
121 xmlTextReaderState state;
122 xmlParserCtxtPtr ctxt; /* the parser context */
123 xmlSAXHandlerPtr sax; /* the parser SAX callbacks */
124 xmlParserInputBufferPtr input; /* the input */
125 startElementSAXFunc startElement;/* initial SAX callbacks */
126 endElementSAXFunc endElement; /* idem */
127 startElementNsSAX2Func startElementNs;/* idem */
128 endElementNsSAX2Func endElementNs; /* idem */
129 charactersSAXFunc characters;
130 cdataBlockSAXFunc cdataBlock;
131 unsigned int base; /* base of the segment in the input */
132 unsigned int cur; /* current position in the input */
133 xmlNodePtr node; /* current node */
134 xmlNodePtr curnode;/* current attribute node */
135 int depth; /* depth of the current node */
136 xmlNodePtr faketext;/* fake xmlNs chld */
137 int preserve;/* preserve the resulting document */
138 xmlBufferPtr buffer; /* used to return const xmlChar * */
139 xmlDictPtr dict; /* the context dictionnary */
140
141 /* entity stack when traversing entities content */
142 xmlNodePtr ent; /* Current Entity Ref Node */
143 int entNr; /* Depth of the entities stack */
144 int entMax; /* Max depth of the entities stack */
145 xmlNodePtr *entTab; /* array of entities */
146
147 /* error handling */
148 xmlTextReaderErrorFunc errorFunc; /* callback function */
149 void *errorFuncArg; /* callback function user argument */
150
151 #ifdef LIBXML_SCHEMAS_ENABLED
152 /* Handling of RelaxNG validation */
153 xmlRelaxNGPtr rngSchemas; /* The Relax NG schemas */
154 xmlRelaxNGValidCtxtPtr rngValidCtxt;/* The Relax NG validation context */
155 int rngValidErrors;/* The number of errors detected */
156 xmlNodePtr rngFullNode; /* the node if RNG not progressive */
157 /* Handling of Schemas validation */
158 xmlSchemaPtr xsdSchemas; /* The Schemas schemas */
159 xmlSchemaValidCtxtPtr xsdValidCtxt;/* The Schemas validation context */
160 int xsdPreserveCtxt; /* 1 if the context was provided by the user */
161 int xsdValidErrors;/* The number of errors detected */
162 xmlSchemaSAXPlugPtr xsdPlug; /* the schemas plug in SAX pipeline */
163 #endif
164 #ifdef LIBXML_XINCLUDE_ENABLED
165 /* Handling of XInclude processing */
166 int xinclude; /* is xinclude asked for */
167 const xmlChar * xinclude_name; /* the xinclude name from dict */
168 xmlXIncludeCtxtPtr xincctxt; /* the xinclude context */
169 int in_xinclude; /* counts for xinclude */
170 #endif
171 #ifdef LIBXML_PATTERN_ENABLED
172 int patternNr; /* number of preserve patterns */
173 int patternMax; /* max preserve patterns */
174 xmlPatternPtr *patternTab; /* array of preserve patterns */
175 #endif
176 int preserves; /* level of preserves */
177 int parserFlags; /* the set of options set */
178 /* Structured error handling */
179 xmlStructuredErrorFunc sErrorFunc; /* callback function */
180 };
181
182 #define NODE_IS_EMPTY 0x1
183 #define NODE_IS_PRESERVED 0x2
184 #define NODE_IS_SPRESERVED 0x4
185
186 /**
187 * CONSTSTR:
188 *
189 * Macro used to return an interned string
190 */
191 #define CONSTSTR(str) xmlDictLookup(reader->dict, (str), -1)
192 #define CONSTQSTR(p, str) xmlDictQLookup(reader->dict, (p), (str))
193
194 static int xmlTextReaderReadTree(xmlTextReaderPtr reader);
195 static int xmlTextReaderNextTree(xmlTextReaderPtr reader);
196
197 /************************************************************************
198 * *
199 * Our own version of the freeing routines as we recycle nodes *
200 * *
201 ************************************************************************/
202 /**
203 * DICT_FREE:
204 * @str: a string
205 *
206 * Free a string if it is not owned by the "dict" dictionnary in the
207 * current scope
208 */
209 #define DICT_FREE(str) \
210 if ((str) && ((!dict) || \
211 (xmlDictOwns(dict, (const xmlChar *)(str)) == 0))) \
212 xmlFree((char *)(str));
213
214 static void xmlTextReaderFreeNode(xmlTextReaderPtr reader, xmlNodePtr cur);
215 static void xmlTextReaderFreeNodeList(xmlTextReaderPtr reader, xmlNodePtr cur);
216
217 /**
218 * xmlFreeID:
219 * @not: A id
220 *
221 * Deallocate the memory used by an id definition
222 */
223 static void
xmlFreeID(xmlIDPtr id)224 xmlFreeID(xmlIDPtr id) {
225 xmlDictPtr dict = NULL;
226
227 if (id == NULL) return;
228
229 if (id->doc != NULL)
230 dict = id->doc->dict;
231
232 if (id->value != NULL)
233 DICT_FREE(id->value)
234 xmlFree(id);
235 }
236
237 /**
238 * xmlTextReaderRemoveID:
239 * @doc: the document
240 * @attr: the attribute
241 *
242 * Remove the given attribute from the ID table maintained internally.
243 *
244 * Returns -1 if the lookup failed and 0 otherwise
245 */
246 static int
xmlTextReaderRemoveID(xmlDocPtr doc,xmlAttrPtr attr)247 xmlTextReaderRemoveID(xmlDocPtr doc, xmlAttrPtr attr) {
248 xmlIDTablePtr table;
249 xmlIDPtr id;
250 xmlChar *ID;
251
252 if (doc == NULL) return(-1);
253 if (attr == NULL) return(-1);
254 table = (xmlIDTablePtr) doc->ids;
255 if (table == NULL)
256 return(-1);
257
258 ID = xmlNodeListGetString(doc, attr->children, 1);
259 if (ID == NULL)
260 return(-1);
261 id = xmlHashLookup(table, ID);
262 xmlFree(ID);
263 if (id == NULL || id->attr != attr) {
264 return(-1);
265 }
266 id->name = attr->name;
267 id->attr = NULL;
268 return(0);
269 }
270
271 /**
272 * xmlTextReaderFreeProp:
273 * @reader: the xmlTextReaderPtr used
274 * @cur: the node
275 *
276 * Free a node.
277 */
278 static void
xmlTextReaderFreeProp(xmlTextReaderPtr reader,xmlAttrPtr cur)279 xmlTextReaderFreeProp(xmlTextReaderPtr reader, xmlAttrPtr cur) {
280 xmlDictPtr dict;
281
282 dict = reader->ctxt->dict;
283 if (cur == NULL) return;
284
285 if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
286 xmlDeregisterNodeDefaultValue((xmlNodePtr) cur);
287
288 /* Check for ID removal -> leading to invalid references ! */
289 if ((cur->parent != NULL) && (cur->parent->doc != NULL) &&
290 ((cur->parent->doc->intSubset != NULL) ||
291 (cur->parent->doc->extSubset != NULL))) {
292 if (xmlIsID(cur->parent->doc, cur->parent, cur))
293 xmlTextReaderRemoveID(cur->parent->doc, cur);
294 }
295 if (cur->children != NULL)
296 xmlTextReaderFreeNodeList(reader, cur->children);
297
298 DICT_FREE(cur->name);
299 if ((reader != NULL) && (reader->ctxt != NULL) &&
300 (reader->ctxt->freeAttrsNr < 100)) {
301 cur->next = reader->ctxt->freeAttrs;
302 reader->ctxt->freeAttrs = cur;
303 reader->ctxt->freeAttrsNr++;
304 } else {
305 xmlFree(cur);
306 }
307 }
308
309 /**
310 * xmlTextReaderFreePropList:
311 * @reader: the xmlTextReaderPtr used
312 * @cur: the first property in the list
313 *
314 * Free a property and all its siblings, all the children are freed too.
315 */
316 static void
xmlTextReaderFreePropList(xmlTextReaderPtr reader,xmlAttrPtr cur)317 xmlTextReaderFreePropList(xmlTextReaderPtr reader, xmlAttrPtr cur) {
318 xmlAttrPtr next;
319 if (cur == NULL) return;
320 while (cur != NULL) {
321 next = cur->next;
322 xmlTextReaderFreeProp(reader, cur);
323 cur = next;
324 }
325 }
326
327 /**
328 * xmlTextReaderFreeNodeList:
329 * @reader: the xmlTextReaderPtr used
330 * @cur: the first node in the list
331 *
332 * Free a node and all its siblings, this is a recursive behaviour, all
333 * the children are freed too.
334 */
335 static void
xmlTextReaderFreeNodeList(xmlTextReaderPtr reader,xmlNodePtr cur)336 xmlTextReaderFreeNodeList(xmlTextReaderPtr reader, xmlNodePtr cur) {
337 xmlNodePtr next;
338 xmlDictPtr dict;
339
340 dict = reader->ctxt->dict;
341 if (cur == NULL) return;
342 if (cur->type == XML_NAMESPACE_DECL) {
343 xmlFreeNsList((xmlNsPtr) cur);
344 return;
345 }
346 if ((cur->type == XML_DOCUMENT_NODE) ||
347 (cur->type == XML_HTML_DOCUMENT_NODE)) {
348 xmlFreeDoc((xmlDocPtr) cur);
349 return;
350 }
351 while (cur != NULL) {
352 next = cur->next;
353 /* unroll to speed up freeing the document */
354 if (cur->type != XML_DTD_NODE) {
355
356 if ((cur->children != NULL) &&
357 (cur->type != XML_ENTITY_REF_NODE)) {
358 if (cur->children->parent == cur)
359 xmlTextReaderFreeNodeList(reader, cur->children);
360 cur->children = NULL;
361 }
362
363 if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
364 xmlDeregisterNodeDefaultValue(cur);
365
366 if (((cur->type == XML_ELEMENT_NODE) ||
367 (cur->type == XML_XINCLUDE_START) ||
368 (cur->type == XML_XINCLUDE_END)) &&
369 (cur->properties != NULL))
370 xmlTextReaderFreePropList(reader, cur->properties);
371 if ((cur->content != (xmlChar *) &(cur->properties)) &&
372 (cur->type != XML_ELEMENT_NODE) &&
373 (cur->type != XML_XINCLUDE_START) &&
374 (cur->type != XML_XINCLUDE_END) &&
375 (cur->type != XML_ENTITY_REF_NODE)) {
376 DICT_FREE(cur->content);
377 }
378 if (((cur->type == XML_ELEMENT_NODE) ||
379 (cur->type == XML_XINCLUDE_START) ||
380 (cur->type == XML_XINCLUDE_END)) &&
381 (cur->nsDef != NULL))
382 xmlFreeNsList(cur->nsDef);
383
384 /*
385 * we don't free element names here they are interned now
386 */
387 if ((cur->type != XML_TEXT_NODE) &&
388 (cur->type != XML_COMMENT_NODE))
389 DICT_FREE(cur->name);
390 if (((cur->type == XML_ELEMENT_NODE) ||
391 (cur->type == XML_TEXT_NODE)) &&
392 (reader != NULL) && (reader->ctxt != NULL) &&
393 (reader->ctxt->freeElemsNr < 100)) {
394 cur->next = reader->ctxt->freeElems;
395 reader->ctxt->freeElems = cur;
396 reader->ctxt->freeElemsNr++;
397 } else {
398 xmlFree(cur);
399 }
400 }
401 cur = next;
402 }
403 }
404
405 /**
406 * xmlTextReaderFreeNode:
407 * @reader: the xmlTextReaderPtr used
408 * @cur: the node
409 *
410 * Free a node, this is a recursive behaviour, all the children are freed too.
411 * This doesn't unlink the child from the list, use xmlUnlinkNode() first.
412 */
413 static void
xmlTextReaderFreeNode(xmlTextReaderPtr reader,xmlNodePtr cur)414 xmlTextReaderFreeNode(xmlTextReaderPtr reader, xmlNodePtr cur) {
415 xmlDictPtr dict;
416
417 dict = reader->ctxt->dict;
418 if (cur->type == XML_DTD_NODE) {
419 xmlFreeDtd((xmlDtdPtr) cur);
420 return;
421 }
422 if (cur->type == XML_NAMESPACE_DECL) {
423 xmlFreeNs((xmlNsPtr) cur);
424 return;
425 }
426 if (cur->type == XML_ATTRIBUTE_NODE) {
427 xmlTextReaderFreeProp(reader, (xmlAttrPtr) cur);
428 return;
429 }
430
431 if ((cur->children != NULL) &&
432 (cur->type != XML_ENTITY_REF_NODE)) {
433 if (cur->children->parent == cur)
434 xmlTextReaderFreeNodeList(reader, cur->children);
435 cur->children = NULL;
436 }
437
438 if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
439 xmlDeregisterNodeDefaultValue(cur);
440
441 if (((cur->type == XML_ELEMENT_NODE) ||
442 (cur->type == XML_XINCLUDE_START) ||
443 (cur->type == XML_XINCLUDE_END)) &&
444 (cur->properties != NULL))
445 xmlTextReaderFreePropList(reader, cur->properties);
446 if ((cur->content != (xmlChar *) &(cur->properties)) &&
447 (cur->type != XML_ELEMENT_NODE) &&
448 (cur->type != XML_XINCLUDE_START) &&
449 (cur->type != XML_XINCLUDE_END) &&
450 (cur->type != XML_ENTITY_REF_NODE)) {
451 DICT_FREE(cur->content);
452 }
453 if (((cur->type == XML_ELEMENT_NODE) ||
454 (cur->type == XML_XINCLUDE_START) ||
455 (cur->type == XML_XINCLUDE_END)) &&
456 (cur->nsDef != NULL))
457 xmlFreeNsList(cur->nsDef);
458
459 /*
460 * we don't free names here they are interned now
461 */
462 if ((cur->type != XML_TEXT_NODE) &&
463 (cur->type != XML_COMMENT_NODE))
464 DICT_FREE(cur->name);
465
466 if (((cur->type == XML_ELEMENT_NODE) ||
467 (cur->type == XML_TEXT_NODE)) &&
468 (reader != NULL) && (reader->ctxt != NULL) &&
469 (reader->ctxt->freeElemsNr < 100)) {
470 cur->next = reader->ctxt->freeElems;
471 reader->ctxt->freeElems = cur;
472 reader->ctxt->freeElemsNr++;
473 } else {
474 xmlFree(cur);
475 }
476 }
477
478 /**
479 * xmlTextReaderFreeIDTable:
480 * @table: An id table
481 *
482 * Deallocate the memory used by an ID hash table.
483 */
484 static void
xmlTextReaderFreeIDTable(xmlIDTablePtr table)485 xmlTextReaderFreeIDTable(xmlIDTablePtr table) {
486 xmlHashFree(table, (xmlHashDeallocator) xmlFreeID);
487 }
488
489 /**
490 * xmlTextReaderFreeDoc:
491 * @reader: the xmlTextReaderPtr used
492 * @cur: pointer to the document
493 *
494 * Free up all the structures used by a document, tree included.
495 */
496 static void
xmlTextReaderFreeDoc(xmlTextReaderPtr reader,xmlDocPtr cur)497 xmlTextReaderFreeDoc(xmlTextReaderPtr reader, xmlDocPtr cur) {
498 xmlDtdPtr extSubset, intSubset;
499
500 if (cur == NULL) return;
501
502 if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
503 xmlDeregisterNodeDefaultValue((xmlNodePtr) cur);
504
505 /*
506 * Do this before freeing the children list to avoid ID lookups
507 */
508 if (cur->ids != NULL) xmlTextReaderFreeIDTable((xmlIDTablePtr) cur->ids);
509 cur->ids = NULL;
510 if (cur->refs != NULL) xmlFreeRefTable((xmlRefTablePtr) cur->refs);
511 cur->refs = NULL;
512 extSubset = cur->extSubset;
513 intSubset = cur->intSubset;
514 if (intSubset == extSubset)
515 extSubset = NULL;
516 if (extSubset != NULL) {
517 xmlUnlinkNode((xmlNodePtr) cur->extSubset);
518 cur->extSubset = NULL;
519 xmlFreeDtd(extSubset);
520 }
521 if (intSubset != NULL) {
522 xmlUnlinkNode((xmlNodePtr) cur->intSubset);
523 cur->intSubset = NULL;
524 xmlFreeDtd(intSubset);
525 }
526
527 if (cur->children != NULL) xmlTextReaderFreeNodeList(reader, cur->children);
528
529 if (cur->version != NULL) xmlFree((char *) cur->version);
530 if (cur->name != NULL) xmlFree((char *) cur->name);
531 if (cur->encoding != NULL) xmlFree((char *) cur->encoding);
532 if (cur->oldNs != NULL) xmlFreeNsList(cur->oldNs);
533 if (cur->URL != NULL) xmlFree((char *) cur->URL);
534 if (cur->dict != NULL) xmlDictFree(cur->dict);
535
536 xmlFree(cur);
537 }
538
539 /************************************************************************
540 * *
541 * The reader core parser *
542 * *
543 ************************************************************************/
544 #ifdef DEBUG_READER
545 static void
xmlTextReaderDebug(xmlTextReaderPtr reader)546 xmlTextReaderDebug(xmlTextReaderPtr reader) {
547 if ((reader == NULL) || (reader->ctxt == NULL)) {
548 fprintf(stderr, "xmlTextReader NULL\n");
549 return;
550 }
551 fprintf(stderr, "xmlTextReader: state %d depth %d ",
552 reader->state, reader->depth);
553 if (reader->node == NULL) {
554 fprintf(stderr, "node = NULL\n");
555 } else {
556 fprintf(stderr, "node %s\n", reader->node->name);
557 }
558 fprintf(stderr, " input: base %d, cur %d, depth %d: ",
559 reader->base, reader->cur, reader->ctxt->nodeNr);
560 if (reader->input->buffer == NULL) {
561 fprintf(stderr, "buffer is NULL\n");
562 } else {
563 #ifdef LIBXML_DEBUG_ENABLED
564 xmlDebugDumpString(stderr,
565 &reader->input->buffer->content[reader->cur]);
566 #endif
567 fprintf(stderr, "\n");
568 }
569 }
570 #endif
571
572 /**
573 * xmlTextReaderEntPush:
574 * @reader: the xmlTextReaderPtr used
575 * @value: the entity reference node
576 *
577 * Pushes a new entity reference node on top of the entities stack
578 *
579 * Returns 0 in case of error, the index in the stack otherwise
580 */
581 static int
xmlTextReaderEntPush(xmlTextReaderPtr reader,xmlNodePtr value)582 xmlTextReaderEntPush(xmlTextReaderPtr reader, xmlNodePtr value)
583 {
584 if (reader->entMax <= 0) {
585 reader->entMax = 10;
586 reader->entTab = (xmlNodePtr *) xmlMalloc(reader->entMax *
587 sizeof(reader->entTab[0]));
588 if (reader->entTab == NULL) {
589 xmlGenericError(xmlGenericErrorContext, "xmlMalloc failed !\n");
590 return (0);
591 }
592 }
593 if (reader->entNr >= reader->entMax) {
594 reader->entMax *= 2;
595 reader->entTab =
596 (xmlNodePtr *) xmlRealloc(reader->entTab,
597 reader->entMax *
598 sizeof(reader->entTab[0]));
599 if (reader->entTab == NULL) {
600 xmlGenericError(xmlGenericErrorContext, "xmlRealloc failed !\n");
601 return (0);
602 }
603 }
604 reader->entTab[reader->entNr] = value;
605 reader->ent = value;
606 return (reader->entNr++);
607 }
608
609 /**
610 * xmlTextReaderEntPop:
611 * @reader: the xmlTextReaderPtr used
612 *
613 * Pops the top element entity from the entities stack
614 *
615 * Returns the entity just removed
616 */
617 static xmlNodePtr
xmlTextReaderEntPop(xmlTextReaderPtr reader)618 xmlTextReaderEntPop(xmlTextReaderPtr reader)
619 {
620 xmlNodePtr ret;
621
622 if (reader->entNr <= 0)
623 return (NULL);
624 reader->entNr--;
625 if (reader->entNr > 0)
626 reader->ent = reader->entTab[reader->entNr - 1];
627 else
628 reader->ent = NULL;
629 ret = reader->entTab[reader->entNr];
630 reader->entTab[reader->entNr] = NULL;
631 return (ret);
632 }
633
634 /**
635 * xmlTextReaderStartElement:
636 * @ctx: the user data (XML parser context)
637 * @fullname: The element name, including namespace prefix
638 * @atts: An array of name/value attributes pairs, NULL terminated
639 *
640 * called when an opening tag has been processed.
641 */
642 static void
xmlTextReaderStartElement(void * ctx,const xmlChar * fullname,const xmlChar ** atts)643 xmlTextReaderStartElement(void *ctx, const xmlChar *fullname,
644 const xmlChar **atts) {
645 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
646 xmlTextReaderPtr reader = ctxt->_private;
647
648 #ifdef DEBUG_CALLBACKS
649 printf("xmlTextReaderStartElement(%s)\n", fullname);
650 #endif
651 if ((reader != NULL) && (reader->startElement != NULL)) {
652 reader->startElement(ctx, fullname, atts);
653 if ((ctxt->node != NULL) && (ctxt->input != NULL) &&
654 (ctxt->input->cur != NULL) && (ctxt->input->cur[0] == '/') &&
655 (ctxt->input->cur[1] == '>'))
656 ctxt->node->extra = NODE_IS_EMPTY;
657 }
658 if (reader != NULL)
659 reader->state = XML_TEXTREADER_ELEMENT;
660 }
661
662 /**
663 * xmlTextReaderEndElement:
664 * @ctx: the user data (XML parser context)
665 * @fullname: The element name, including namespace prefix
666 *
667 * called when an ending tag has been processed.
668 */
669 static void
xmlTextReaderEndElement(void * ctx,const xmlChar * fullname)670 xmlTextReaderEndElement(void *ctx, const xmlChar *fullname) {
671 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
672 xmlTextReaderPtr reader = ctxt->_private;
673
674 #ifdef DEBUG_CALLBACKS
675 printf("xmlTextReaderEndElement(%s)\n", fullname);
676 #endif
677 if ((reader != NULL) && (reader->endElement != NULL)) {
678 reader->endElement(ctx, fullname);
679 }
680 }
681
682 /**
683 * xmlTextReaderStartElementNs:
684 * @ctx: the user data (XML parser context)
685 * @localname: the local name of the element
686 * @prefix: the element namespace prefix if available
687 * @URI: the element namespace name if available
688 * @nb_namespaces: number of namespace definitions on that node
689 * @namespaces: pointer to the array of prefix/URI pairs namespace definitions
690 * @nb_attributes: the number of attributes on that node
691 * nb_defaulted: the number of defaulted attributes.
692 * @attributes: pointer to the array of (localname/prefix/URI/value/end)
693 * attribute values.
694 *
695 * called when an opening tag has been processed.
696 */
697 static void
xmlTextReaderStartElementNs(void * ctx,const xmlChar * localname,const xmlChar * prefix,const xmlChar * URI,int nb_namespaces,const xmlChar ** namespaces,int nb_attributes,int nb_defaulted,const xmlChar ** attributes)698 xmlTextReaderStartElementNs(void *ctx,
699 const xmlChar *localname,
700 const xmlChar *prefix,
701 const xmlChar *URI,
702 int nb_namespaces,
703 const xmlChar **namespaces,
704 int nb_attributes,
705 int nb_defaulted,
706 const xmlChar **attributes)
707 {
708 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
709 xmlTextReaderPtr reader = ctxt->_private;
710
711 #ifdef DEBUG_CALLBACKS
712 printf("xmlTextReaderStartElementNs(%s)\n", localname);
713 #endif
714 if ((reader != NULL) && (reader->startElementNs != NULL)) {
715 reader->startElementNs(ctx, localname, prefix, URI, nb_namespaces,
716 namespaces, nb_attributes, nb_defaulted,
717 attributes);
718 if ((ctxt->node != NULL) && (ctxt->input != NULL) &&
719 (ctxt->input->cur != NULL) && (ctxt->input->cur[0] == '/') &&
720 (ctxt->input->cur[1] == '>'))
721 ctxt->node->extra = NODE_IS_EMPTY;
722 }
723 if (reader != NULL)
724 reader->state = XML_TEXTREADER_ELEMENT;
725 }
726
727 /**
728 * xmlTextReaderEndElementNs:
729 * @ctx: the user data (XML parser context)
730 * @localname: the local name of the element
731 * @prefix: the element namespace prefix if available
732 * @URI: the element namespace name if available
733 *
734 * called when an ending tag has been processed.
735 */
736 static void
xmlTextReaderEndElementNs(void * ctx,const xmlChar * localname,const xmlChar * prefix,const xmlChar * URI)737 xmlTextReaderEndElementNs(void *ctx,
738 const xmlChar * localname,
739 const xmlChar * prefix,
740 const xmlChar * URI)
741 {
742 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
743 xmlTextReaderPtr reader = ctxt->_private;
744
745 #ifdef DEBUG_CALLBACKS
746 printf("xmlTextReaderEndElementNs(%s)\n", localname);
747 #endif
748 if ((reader != NULL) && (reader->endElementNs != NULL)) {
749 reader->endElementNs(ctx, localname, prefix, URI);
750 }
751 }
752
753
754 /**
755 * xmlTextReaderCharacters:
756 * @ctx: the user data (XML parser context)
757 * @ch: a xmlChar string
758 * @len: the number of xmlChar
759 *
760 * receiving some chars from the parser.
761 */
762 static void
xmlTextReaderCharacters(void * ctx,const xmlChar * ch,int len)763 xmlTextReaderCharacters(void *ctx, const xmlChar *ch, int len)
764 {
765 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
766 xmlTextReaderPtr reader = ctxt->_private;
767
768 #ifdef DEBUG_CALLBACKS
769 printf("xmlTextReaderCharacters()\n");
770 #endif
771 if ((reader != NULL) && (reader->characters != NULL)) {
772 reader->characters(ctx, ch, len);
773 }
774 }
775
776 /**
777 * xmlTextReaderCDataBlock:
778 * @ctx: the user data (XML parser context)
779 * @value: The pcdata content
780 * @len: the block length
781 *
782 * called when a pcdata block has been parsed
783 */
784 static void
xmlTextReaderCDataBlock(void * ctx,const xmlChar * ch,int len)785 xmlTextReaderCDataBlock(void *ctx, const xmlChar *ch, int len)
786 {
787 xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
788 xmlTextReaderPtr reader = ctxt->_private;
789
790 #ifdef DEBUG_CALLBACKS
791 printf("xmlTextReaderCDataBlock()\n");
792 #endif
793 if ((reader != NULL) && (reader->cdataBlock != NULL)) {
794 reader->cdataBlock(ctx, ch, len);
795 }
796 }
797
798 /**
799 * xmlTextReaderPushData:
800 * @reader: the xmlTextReaderPtr used
801 *
802 * Push data down the progressive parser until a significant callback
803 * got raised.
804 *
805 * Returns -1 in case of failure, 0 otherwise
806 */
807 static int
xmlTextReaderPushData(xmlTextReaderPtr reader)808 xmlTextReaderPushData(xmlTextReaderPtr reader) {
809 xmlBufferPtr inbuf;
810 int val, s;
811 xmlTextReaderState oldstate;
812
813 if ((reader->input == NULL) || (reader->input->buffer == NULL))
814 return(-1);
815
816 oldstate = reader->state;
817 reader->state = XML_TEXTREADER_NONE;
818 inbuf = reader->input->buffer;
819
820 while (reader->state == XML_TEXTREADER_NONE) {
821 if (inbuf->use < reader->cur + CHUNK_SIZE) {
822 /*
823 * Refill the buffer unless we are at the end of the stream
824 */
825 if (reader->mode != XML_TEXTREADER_MODE_EOF) {
826 val = xmlParserInputBufferRead(reader->input, 4096);
827 if ((val == 0) &&
828 (inbuf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)) {
829 if (inbuf->use == reader->cur) {
830 reader->mode = XML_TEXTREADER_MODE_EOF;
831 reader->state = oldstate;
832 }
833 } else if (val < 0) {
834 reader->mode = XML_TEXTREADER_MODE_EOF;
835 reader->state = oldstate;
836 if ((oldstate != XML_TEXTREADER_START) ||
837 (reader->ctxt->myDoc != NULL))
838 return(val);
839 } else if (val == 0) {
840 /* mark the end of the stream and process the remains */
841 reader->mode = XML_TEXTREADER_MODE_EOF;
842 break;
843 }
844
845 } else
846 break;
847 }
848 /*
849 * parse by block of CHUNK_SIZE bytes, various tests show that
850 * it's the best tradeoff at least on a 1.2GH Duron
851 */
852 if (inbuf->use >= reader->cur + CHUNK_SIZE) {
853 val = xmlParseChunk(reader->ctxt,
854 (const char *) &inbuf->content[reader->cur],
855 CHUNK_SIZE, 0);
856 reader->cur += CHUNK_SIZE;
857 if ((val != 0) || (reader->ctxt->wellFormed == 0))
858 return(-1);
859 } else {
860 s = inbuf->use - reader->cur;
861 val = xmlParseChunk(reader->ctxt,
862 (const char *) &inbuf->content[reader->cur],
863 s, 0);
864 reader->cur += s;
865 if ((val != 0) || (reader->ctxt->wellFormed == 0))
866 return(-1);
867 break;
868 }
869 }
870
871 /*
872 * Discard the consumed input when needed and possible
873 */
874 if (reader->mode == XML_TEXTREADER_MODE_INTERACTIVE) {
875 if (inbuf->alloc != XML_BUFFER_ALLOC_IMMUTABLE) {
876 if ((reader->cur >= 4096) &&
877 (inbuf->use - reader->cur <= CHUNK_SIZE)) {
878 val = xmlBufferShrink(inbuf, reader->cur);
879 if (val >= 0) {
880 reader->cur -= val;
881 }
882 }
883 }
884 }
885
886 /*
887 * At the end of the stream signal that the work is done to the Push
888 * parser.
889 */
890 else if (reader->mode == XML_TEXTREADER_MODE_EOF) {
891 if (reader->state != XML_TEXTREADER_DONE) {
892 s = inbuf->use - reader->cur;
893 val = xmlParseChunk(reader->ctxt,
894 (const char *) &inbuf->content[reader->cur],
895 s, 1);
896 reader->cur = inbuf->use;
897 reader->state = XML_TEXTREADER_DONE;
898 if ((val != 0) || (reader->ctxt->wellFormed == 0))
899 return(-1);
900 }
901 }
902 reader->state = oldstate;
903 return(0);
904 }
905
906 #ifdef LIBXML_REGEXP_ENABLED
907 /**
908 * xmlTextReaderValidatePush:
909 * @reader: the xmlTextReaderPtr used
910 *
911 * Push the current node for validation
912 */
913 static void
xmlTextReaderValidatePush(xmlTextReaderPtr reader ATTRIBUTE_UNUSED)914 xmlTextReaderValidatePush(xmlTextReaderPtr reader ATTRIBUTE_UNUSED) {
915 xmlNodePtr node = reader->node;
916
917 #ifdef LIBXML_VALID_ENABLED
918 if ((reader->validate == XML_TEXTREADER_VALIDATE_DTD) &&
919 (reader->ctxt != NULL) && (reader->ctxt->validate == 1)) {
920 if ((node->ns == NULL) || (node->ns->prefix == NULL)) {
921 reader->ctxt->valid &= xmlValidatePushElement(&reader->ctxt->vctxt,
922 reader->ctxt->myDoc, node, node->name);
923 } else {
924 /* TODO use the BuildQName interface */
925 xmlChar *qname;
926
927 qname = xmlStrdup(node->ns->prefix);
928 qname = xmlStrcat(qname, BAD_CAST ":");
929 qname = xmlStrcat(qname, node->name);
930 reader->ctxt->valid &= xmlValidatePushElement(&reader->ctxt->vctxt,
931 reader->ctxt->myDoc, node, qname);
932 if (qname != NULL)
933 xmlFree(qname);
934 }
935 }
936 #endif /* LIBXML_VALID_ENABLED */
937 #ifdef LIBXML_SCHEMAS_ENABLED
938 if ((reader->validate == XML_TEXTREADER_VALIDATE_RNG) &&
939 (reader->rngValidCtxt != NULL)) {
940 int ret;
941
942 if (reader->rngFullNode != NULL) return;
943 ret = xmlRelaxNGValidatePushElement(reader->rngValidCtxt,
944 reader->ctxt->myDoc,
945 node);
946 if (ret == 0) {
947 /*
948 * this element requires a full tree
949 */
950 node = xmlTextReaderExpand(reader);
951 if (node == NULL) {
952 printf("Expand failed !\n");
953 ret = -1;
954 } else {
955 ret = xmlRelaxNGValidateFullElement(reader->rngValidCtxt,
956 reader->ctxt->myDoc,
957 node);
958 reader->rngFullNode = node;
959 }
960 }
961 if (ret != 1)
962 reader->rngValidErrors++;
963 }
964 #endif
965 }
966
967 /**
968 * xmlTextReaderValidateCData:
969 * @reader: the xmlTextReaderPtr used
970 * @data: pointer to the CData
971 * @len: lenght of the CData block in bytes.
972 *
973 * Push some CData for validation
974 */
975 static void
xmlTextReaderValidateCData(xmlTextReaderPtr reader,const xmlChar * data,int len)976 xmlTextReaderValidateCData(xmlTextReaderPtr reader,
977 const xmlChar *data, int len) {
978 #ifdef LIBXML_VALID_ENABLED
979 if ((reader->validate == XML_TEXTREADER_VALIDATE_DTD) &&
980 (reader->ctxt != NULL) && (reader->ctxt->validate == 1)) {
981 reader->ctxt->valid &= xmlValidatePushCData(&reader->ctxt->vctxt,
982 data, len);
983 }
984 #endif /* LIBXML_VALID_ENABLED */
985 #ifdef LIBXML_SCHEMAS_ENABLED
986 if ((reader->validate == XML_TEXTREADER_VALIDATE_RNG) &&
987 (reader->rngValidCtxt != NULL)) {
988 int ret;
989
990 if (reader->rngFullNode != NULL) return;
991 ret = xmlRelaxNGValidatePushCData(reader->rngValidCtxt, data, len);
992 if (ret != 1)
993 reader->rngValidErrors++;
994 }
995 #endif
996 }
997
998 /**
999 * xmlTextReaderValidatePop:
1000 * @reader: the xmlTextReaderPtr used
1001 *
1002 * Pop the current node from validation
1003 */
1004 static void
xmlTextReaderValidatePop(xmlTextReaderPtr reader)1005 xmlTextReaderValidatePop(xmlTextReaderPtr reader) {
1006 xmlNodePtr node = reader->node;
1007
1008 #ifdef LIBXML_VALID_ENABLED
1009 if ((reader->validate == XML_TEXTREADER_VALIDATE_DTD) &&
1010 (reader->ctxt != NULL) && (reader->ctxt->validate == 1)) {
1011 if ((node->ns == NULL) || (node->ns->prefix == NULL)) {
1012 reader->ctxt->valid &= xmlValidatePopElement(&reader->ctxt->vctxt,
1013 reader->ctxt->myDoc, node, node->name);
1014 } else {
1015 /* TODO use the BuildQName interface */
1016 xmlChar *qname;
1017
1018 qname = xmlStrdup(node->ns->prefix);
1019 qname = xmlStrcat(qname, BAD_CAST ":");
1020 qname = xmlStrcat(qname, node->name);
1021 reader->ctxt->valid &= xmlValidatePopElement(&reader->ctxt->vctxt,
1022 reader->ctxt->myDoc, node, qname);
1023 if (qname != NULL)
1024 xmlFree(qname);
1025 }
1026 }
1027 #endif /* LIBXML_VALID_ENABLED */
1028 #ifdef LIBXML_SCHEMAS_ENABLED
1029 if ((reader->validate == XML_TEXTREADER_VALIDATE_RNG) &&
1030 (reader->rngValidCtxt != NULL)) {
1031 int ret;
1032
1033 if (reader->rngFullNode != NULL) {
1034 if (node == reader->rngFullNode)
1035 reader->rngFullNode = NULL;
1036 return;
1037 }
1038 ret = xmlRelaxNGValidatePopElement(reader->rngValidCtxt,
1039 reader->ctxt->myDoc,
1040 node);
1041 if (ret != 1)
1042 reader->rngValidErrors++;
1043 }
1044 #endif
1045 }
1046
1047 /**
1048 * xmlTextReaderValidateEntity:
1049 * @reader: the xmlTextReaderPtr used
1050 *
1051 * Handle the validation when an entity reference is encountered and
1052 * entity substitution is not activated. As a result the parser interface
1053 * must walk through the entity and do the validation calls
1054 */
1055 static void
xmlTextReaderValidateEntity(xmlTextReaderPtr reader)1056 xmlTextReaderValidateEntity(xmlTextReaderPtr reader) {
1057 xmlNodePtr oldnode = reader->node;
1058 xmlNodePtr node = reader->node;
1059 xmlParserCtxtPtr ctxt = reader->ctxt;
1060
1061 do {
1062 if (node->type == XML_ENTITY_REF_NODE) {
1063 /*
1064 * Case where the underlying tree is not availble, lookup the entity
1065 * and walk it.
1066 */
1067 if ((node->children == NULL) && (ctxt->sax != NULL) &&
1068 (ctxt->sax->getEntity != NULL)) {
1069 node->children = (xmlNodePtr)
1070 ctxt->sax->getEntity(ctxt, node->name);
1071 }
1072
1073 if ((node->children != NULL) &&
1074 (node->children->type == XML_ENTITY_DECL) &&
1075 (node->children->children != NULL)) {
1076 xmlTextReaderEntPush(reader, node);
1077 node = node->children->children;
1078 continue;
1079 } else {
1080 /*
1081 * The error has probably be raised already.
1082 */
1083 if (node == oldnode)
1084 break;
1085 node = node->next;
1086 }
1087 #ifdef LIBXML_REGEXP_ENABLED
1088 } else if (node->type == XML_ELEMENT_NODE) {
1089 reader->node = node;
1090 xmlTextReaderValidatePush(reader);
1091 } else if ((node->type == XML_TEXT_NODE) ||
1092 (node->type == XML_CDATA_SECTION_NODE)) {
1093 xmlTextReaderValidateCData(reader, node->content,
1094 xmlStrlen(node->content));
1095 #endif
1096 }
1097
1098 /*
1099 * go to next node
1100 */
1101 if (node->children != NULL) {
1102 node = node->children;
1103 continue;
1104 } else if (node->type == XML_ELEMENT_NODE) {
1105 xmlTextReaderValidatePop(reader);
1106 }
1107 if (node->next != NULL) {
1108 node = node->next;
1109 continue;
1110 }
1111 do {
1112 node = node->parent;
1113 if (node->type == XML_ELEMENT_NODE) {
1114 xmlNodePtr tmp;
1115 if (reader->entNr == 0) {
1116 while ((tmp = node->last) != NULL) {
1117 if ((tmp->extra & NODE_IS_PRESERVED) == 0) {
1118 xmlUnlinkNode(tmp);
1119 xmlTextReaderFreeNode(reader, tmp);
1120 } else
1121 break;
1122 }
1123 }
1124 reader->node = node;
1125 xmlTextReaderValidatePop(reader);
1126 }
1127 if ((node->type == XML_ENTITY_DECL) &&
1128 (reader->ent != NULL) && (reader->ent->children == node)) {
1129 node = xmlTextReaderEntPop(reader);
1130 }
1131 if (node == oldnode)
1132 break;
1133 if (node->next != NULL) {
1134 node = node->next;
1135 break;
1136 }
1137 } while ((node != NULL) && (node != oldnode));
1138 } while ((node != NULL) && (node != oldnode));
1139 reader->node = oldnode;
1140 }
1141 #endif /* LIBXML_REGEXP_ENABLED */
1142
1143
1144 /**
1145 * xmlTextReaderGetSuccessor:
1146 * @cur: the current node
1147 *
1148 * Get the successor of a node if available.
1149 *
1150 * Returns the successor node or NULL
1151 */
1152 static xmlNodePtr
xmlTextReaderGetSuccessor(xmlNodePtr cur)1153 xmlTextReaderGetSuccessor(xmlNodePtr cur) {
1154 if (cur == NULL) return(NULL) ; /* ERROR */
1155 if (cur->next != NULL) return(cur->next) ;
1156 do {
1157 cur = cur->parent;
1158 if (cur == NULL) break;
1159 if (cur->next != NULL) return(cur->next);
1160 } while (cur != NULL);
1161 return(cur);
1162 }
1163
1164 /**
1165 * xmlTextReaderDoExpand:
1166 * @reader: the xmlTextReaderPtr used
1167 *
1168 * Makes sure that the current node is fully read as well as all its
1169 * descendant. It means the full DOM subtree must be available at the
1170 * end of the call.
1171 *
1172 * Returns 1 if the node was expanded successfully, 0 if there is no more
1173 * nodes to read, or -1 in case of error
1174 */
1175 static int
xmlTextReaderDoExpand(xmlTextReaderPtr reader)1176 xmlTextReaderDoExpand(xmlTextReaderPtr reader) {
1177 int val;
1178
1179 if ((reader == NULL) || (reader->node == NULL) || (reader->ctxt == NULL))
1180 return(-1);
1181 do {
1182 if (reader->ctxt->instate == XML_PARSER_EOF) return(1);
1183
1184 if (xmlTextReaderGetSuccessor(reader->node) != NULL)
1185 return(1);
1186 if (reader->ctxt->nodeNr < reader->depth)
1187 return(1);
1188 if (reader->mode == XML_TEXTREADER_MODE_EOF)
1189 return(1);
1190 val = xmlTextReaderPushData(reader);
1191 if (val < 0){
1192 reader->mode = XML_TEXTREADER_MODE_ERROR;
1193 return(-1);
1194 }
1195 } while(reader->mode != XML_TEXTREADER_MODE_EOF);
1196 return(1);
1197 }
1198
1199 /**
1200 * xmlTextReaderCollectSiblings:
1201 * @node: the first child
1202 *
1203 * Traverse depth-first through all sibling nodes and their children
1204 * nodes and concatenate their content. This is an auxiliary function
1205 * to xmlTextReaderReadString.
1206 *
1207 * Returns a string containing the content, or NULL in case of error.
1208 */
1209 static xmlChar *
xmlTextReaderCollectSiblings(xmlNodePtr node)1210 xmlTextReaderCollectSiblings(xmlNodePtr node)
1211 {
1212 xmlBufferPtr buffer;
1213 xmlChar *ret;
1214
1215 buffer = xmlBufferCreate();
1216 if (buffer == NULL)
1217 return NULL;
1218
1219 for ( ; node != NULL; node = node->next) {
1220 switch (node->type) {
1221 case XML_TEXT_NODE:
1222 case XML_CDATA_SECTION_NODE:
1223 xmlBufferCat(buffer, node->content);
1224 break;
1225 case XML_ELEMENT_NODE: {
1226 xmlChar *tmp;
1227
1228 tmp = xmlTextReaderCollectSiblings(node->children);
1229 xmlBufferCat(buffer, tmp);
1230 xmlFree(tmp);
1231 break;
1232 }
1233 default:
1234 break;
1235 }
1236 }
1237 ret = buffer->content;
1238 buffer->content = NULL;
1239 xmlBufferFree(buffer);
1240 return(ret);
1241 }
1242
1243 /**
1244 * xmlTextReaderRead:
1245 * @reader: the xmlTextReaderPtr used
1246 *
1247 * Moves the position of the current instance to the next node in
1248 * the stream, exposing its properties.
1249 *
1250 * Returns 1 if the node was read successfully, 0 if there is no more
1251 * nodes to read, or -1 in case of error
1252 */
1253 int
xmlTextReaderRead(xmlTextReaderPtr reader)1254 xmlTextReaderRead(xmlTextReaderPtr reader) {
1255 int val, olddepth = 0;
1256 xmlTextReaderState oldstate = XML_TEXTREADER_START;
1257 xmlNodePtr oldnode = NULL;
1258
1259
1260 if (reader == NULL)
1261 return(-1);
1262 reader->curnode = NULL;
1263 if (reader->doc != NULL)
1264 return(xmlTextReaderReadTree(reader));
1265 if (reader->ctxt == NULL)
1266 return(-1);
1267 if (reader->ctxt->wellFormed != 1)
1268 return(-1);
1269
1270 #ifdef DEBUG_READER
1271 fprintf(stderr, "\nREAD ");
1272 DUMP_READER
1273 #endif
1274 if (reader->mode == XML_TEXTREADER_MODE_INITIAL) {
1275 reader->mode = XML_TEXTREADER_MODE_INTERACTIVE;
1276 /*
1277 * Initial state
1278 */
1279 do {
1280 val = xmlTextReaderPushData(reader);
1281 if (val < 0){
1282 reader->mode = XML_TEXTREADER_MODE_ERROR;
1283 reader->state = XML_TEXTREADER_ERROR;
1284 return(-1);
1285 }
1286 } while ((reader->ctxt->node == NULL) &&
1287 ((reader->mode != XML_TEXTREADER_MODE_EOF) &&
1288 (reader->state != XML_TEXTREADER_DONE)));
1289 if (reader->ctxt->node == NULL) {
1290 if (reader->ctxt->myDoc != NULL) {
1291 reader->node = reader->ctxt->myDoc->children;
1292 }
1293 if (reader->node == NULL){
1294 reader->mode = XML_TEXTREADER_MODE_ERROR;
1295 reader->state = XML_TEXTREADER_ERROR;
1296 return(-1);
1297 }
1298 reader->state = XML_TEXTREADER_ELEMENT;
1299 } else {
1300 if (reader->ctxt->myDoc != NULL) {
1301 reader->node = reader->ctxt->myDoc->children;
1302 }
1303 if (reader->node == NULL)
1304 reader->node = reader->ctxt->nodeTab[0];
1305 reader->state = XML_TEXTREADER_ELEMENT;
1306 }
1307 reader->depth = 0;
1308 reader->ctxt->parseMode = XML_PARSE_READER;
1309 goto node_found;
1310 }
1311 oldstate = reader->state;
1312 olddepth = reader->ctxt->nodeNr;
1313 oldnode = reader->node;
1314
1315 get_next_node:
1316 if (reader->node == NULL) {
1317 if (reader->mode == XML_TEXTREADER_MODE_EOF)
1318 return(0);
1319 else
1320 return(-1);
1321 }
1322
1323 /*
1324 * If we are not backtracking on ancestors or examined nodes,
1325 * that the parser didn't finished or that we arent at the end
1326 * of stream, continue processing.
1327 */
1328 while ((reader->node != NULL) && (reader->node->next == NULL) &&
1329 (reader->ctxt->nodeNr == olddepth) &&
1330 ((oldstate == XML_TEXTREADER_BACKTRACK) ||
1331 (reader->node->children == NULL) ||
1332 (reader->node->type == XML_ENTITY_REF_NODE) ||
1333 ((reader->node->children != NULL) &&
1334 (reader->node->children->type == XML_TEXT_NODE) &&
1335 (reader->node->children->next == NULL)) ||
1336 (reader->node->type == XML_DTD_NODE) ||
1337 (reader->node->type == XML_DOCUMENT_NODE) ||
1338 (reader->node->type == XML_HTML_DOCUMENT_NODE)) &&
1339 ((reader->ctxt->node == NULL) ||
1340 (reader->ctxt->node == reader->node) ||
1341 (reader->ctxt->node == reader->node->parent)) &&
1342 (reader->ctxt->instate != XML_PARSER_EOF)) {
1343 val = xmlTextReaderPushData(reader);
1344 if (val < 0){
1345 reader->mode = XML_TEXTREADER_MODE_ERROR;
1346 reader->state = XML_TEXTREADER_ERROR;
1347 return(-1);
1348 }
1349 if (reader->node == NULL)
1350 goto node_end;
1351 }
1352 if (oldstate != XML_TEXTREADER_BACKTRACK) {
1353 if ((reader->node->children != NULL) &&
1354 (reader->node->type != XML_ENTITY_REF_NODE) &&
1355 (reader->node->type != XML_XINCLUDE_START) &&
1356 (reader->node->type != XML_DTD_NODE)) {
1357 reader->node = reader->node->children;
1358 reader->depth++;
1359 reader->state = XML_TEXTREADER_ELEMENT;
1360 goto node_found;
1361 }
1362 }
1363 if (reader->node->next != NULL) {
1364 if ((oldstate == XML_TEXTREADER_ELEMENT) &&
1365 (reader->node->type == XML_ELEMENT_NODE) &&
1366 (reader->node->children == NULL) &&
1367 ((reader->node->extra & NODE_IS_EMPTY) == 0)
1368 #ifdef LIBXML_XINCLUDE_ENABLED
1369 && (reader->in_xinclude <= 0)
1370 #endif
1371 ) {
1372 reader->state = XML_TEXTREADER_END;
1373 goto node_found;
1374 }
1375 #ifdef LIBXML_REGEXP_ENABLED
1376 if ((reader->validate) &&
1377 (reader->node->type == XML_ELEMENT_NODE))
1378 xmlTextReaderValidatePop(reader);
1379 #endif /* LIBXML_REGEXP_ENABLED */
1380 if ((reader->preserves > 0) &&
1381 (reader->node->extra & NODE_IS_SPRESERVED))
1382 reader->preserves--;
1383 reader->node = reader->node->next;
1384 reader->state = XML_TEXTREADER_ELEMENT;
1385
1386 /*
1387 * Cleanup of the old node
1388 */
1389 if ((reader->preserves == 0) &&
1390 #ifdef LIBXML_XINCLUDE_ENABLED
1391 (reader->in_xinclude == 0) &&
1392 #endif
1393 (reader->entNr == 0) &&
1394 (reader->node->prev != NULL) &&
1395 (reader->node->prev->type != XML_DTD_NODE) &&
1396 (reader->entNr == 0)) {
1397 xmlNodePtr tmp = reader->node->prev;
1398 if ((tmp->extra & NODE_IS_PRESERVED) == 0) {
1399 xmlUnlinkNode(tmp);
1400 xmlTextReaderFreeNode(reader, tmp);
1401 }
1402 }
1403
1404 goto node_found;
1405 }
1406 if ((oldstate == XML_TEXTREADER_ELEMENT) &&
1407 (reader->node->type == XML_ELEMENT_NODE) &&
1408 (reader->node->children == NULL) &&
1409 ((reader->node->extra & NODE_IS_EMPTY) == 0)) {;
1410 reader->state = XML_TEXTREADER_END;
1411 goto node_found;
1412 }
1413 #ifdef LIBXML_REGEXP_ENABLED
1414 if ((reader->validate) && (reader->node->type == XML_ELEMENT_NODE))
1415 xmlTextReaderValidatePop(reader);
1416 #endif /* LIBXML_REGEXP_ENABLED */
1417 if ((reader->preserves > 0) &&
1418 (reader->node->extra & NODE_IS_SPRESERVED))
1419 reader->preserves--;
1420 reader->node = reader->node->parent;
1421 if ((reader->node == NULL) ||
1422 (reader->node->type == XML_DOCUMENT_NODE) ||
1423 #ifdef LIBXML_DOCB_ENABLED
1424 (reader->node->type == XML_DOCB_DOCUMENT_NODE) ||
1425 #endif
1426 (reader->node->type == XML_HTML_DOCUMENT_NODE)) {
1427 if (reader->mode != XML_TEXTREADER_MODE_EOF) {
1428 val = xmlParseChunk(reader->ctxt, "", 0, 1);
1429 reader->state = XML_TEXTREADER_DONE;
1430 if (val != 0)
1431 return(-1);
1432 }
1433 reader->node = NULL;
1434 reader->depth = -1;
1435
1436 /*
1437 * Cleanup of the old node
1438 */
1439 if ((oldnode != NULL) && (reader->preserves == 0) &&
1440 #ifdef LIBXML_XINCLUDE_ENABLED
1441 (reader->in_xinclude == 0) &&
1442 #endif
1443 (reader->entNr == 0) &&
1444 (oldnode->type != XML_DTD_NODE) &&
1445 ((oldnode->extra & NODE_IS_PRESERVED) == 0) &&
1446 (reader->entNr == 0)) {
1447 xmlUnlinkNode(oldnode);
1448 xmlTextReaderFreeNode(reader, oldnode);
1449 }
1450
1451 goto node_end;
1452 }
1453 if ((reader->preserves == 0) &&
1454 #ifdef LIBXML_XINCLUDE_ENABLED
1455 (reader->in_xinclude == 0) &&
1456 #endif
1457 (reader->entNr == 0) &&
1458 (reader->node->last != NULL) &&
1459 ((reader->node->last->extra & NODE_IS_PRESERVED) == 0)) {
1460 xmlNodePtr tmp = reader->node->last;
1461 xmlUnlinkNode(tmp);
1462 xmlTextReaderFreeNode(reader, tmp);
1463 }
1464 reader->depth--;
1465 reader->state = XML_TEXTREADER_BACKTRACK;
1466
1467 node_found:
1468 DUMP_READER
1469
1470 /*
1471 * If we are in the middle of a piece of CDATA make sure it's finished
1472 */
1473 if ((reader->node != NULL) &&
1474 (reader->node->next == NULL) &&
1475 ((reader->node->type == XML_TEXT_NODE) ||
1476 (reader->node->type == XML_CDATA_SECTION_NODE))) {
1477 if (xmlTextReaderExpand(reader) == NULL)
1478 return -1;
1479 }
1480
1481 #ifdef LIBXML_XINCLUDE_ENABLED
1482 /*
1483 * Handle XInclude if asked for
1484 */
1485 if ((reader->xinclude) && (reader->node != NULL) &&
1486 (reader->node->type == XML_ELEMENT_NODE) &&
1487 (reader->node->ns != NULL) &&
1488 ((xmlStrEqual(reader->node->ns->href, XINCLUDE_NS)) ||
1489 (xmlStrEqual(reader->node->ns->href, XINCLUDE_OLD_NS)))) {
1490 if (reader->xincctxt == NULL) {
1491 reader->xincctxt = xmlXIncludeNewContext(reader->ctxt->myDoc);
1492 xmlXIncludeSetFlags(reader->xincctxt,
1493 reader->parserFlags & (~XML_PARSE_NOXINCNODE));
1494 }
1495 /*
1496 * expand that node and process it
1497 */
1498 if (xmlTextReaderExpand(reader) == NULL)
1499 return -1;
1500 xmlXIncludeProcessNode(reader->xincctxt, reader->node);
1501 }
1502 if ((reader->node != NULL) && (reader->node->type == XML_XINCLUDE_START)) {
1503 reader->in_xinclude++;
1504 goto get_next_node;
1505 }
1506 if ((reader->node != NULL) && (reader->node->type == XML_XINCLUDE_END)) {
1507 reader->in_xinclude--;
1508 goto get_next_node;
1509 }
1510 #endif
1511 /*
1512 * Handle entities enter and exit when in entity replacement mode
1513 */
1514 if ((reader->node != NULL) &&
1515 (reader->node->type == XML_ENTITY_REF_NODE) &&
1516 (reader->ctxt != NULL) && (reader->ctxt->replaceEntities == 1)) {
1517 /*
1518 * Case where the underlying tree is not availble, lookup the entity
1519 * and walk it.
1520 */
1521 if ((reader->node->children == NULL) && (reader->ctxt->sax != NULL) &&
1522 (reader->ctxt->sax->getEntity != NULL)) {
1523 reader->node->children = (xmlNodePtr)
1524 reader->ctxt->sax->getEntity(reader->ctxt, reader->node->name);
1525 }
1526
1527 if ((reader->node->children != NULL) &&
1528 (reader->node->children->type == XML_ENTITY_DECL) &&
1529 (reader->node->children->children != NULL)) {
1530 xmlTextReaderEntPush(reader, reader->node);
1531 reader->node = reader->node->children->children;
1532 }
1533 #ifdef LIBXML_REGEXP_ENABLED
1534 } else if ((reader->node != NULL) &&
1535 (reader->node->type == XML_ENTITY_REF_NODE) &&
1536 (reader->ctxt != NULL) && (reader->validate)) {
1537 xmlTextReaderValidateEntity(reader);
1538 #endif /* LIBXML_REGEXP_ENABLED */
1539 }
1540 if ((reader->node != NULL) &&
1541 (reader->node->type == XML_ENTITY_DECL) &&
1542 (reader->ent != NULL) && (reader->ent->children == reader->node)) {
1543 reader->node = xmlTextReaderEntPop(reader);
1544 reader->depth++;
1545 goto get_next_node;
1546 }
1547 #ifdef LIBXML_REGEXP_ENABLED
1548 if ((reader->validate) && (reader->node != NULL)) {
1549 xmlNodePtr node = reader->node;
1550
1551 if ((node->type == XML_ELEMENT_NODE) &&
1552 ((reader->state != XML_TEXTREADER_END) &&
1553 (reader->state != XML_TEXTREADER_BACKTRACK))) {
1554 xmlTextReaderValidatePush(reader);
1555 } else if ((node->type == XML_TEXT_NODE) ||
1556 (node->type == XML_CDATA_SECTION_NODE)) {
1557 xmlTextReaderValidateCData(reader, node->content,
1558 xmlStrlen(node->content));
1559 }
1560 }
1561 #endif /* LIBXML_REGEXP_ENABLED */
1562 #ifdef LIBXML_PATTERN_ENABLED
1563 if ((reader->patternNr > 0) && (reader->state != XML_TEXTREADER_END) &&
1564 (reader->state != XML_TEXTREADER_BACKTRACK)) {
1565 int i;
1566 for (i = 0;i < reader->patternNr;i++) {
1567 if (xmlPatternMatch(reader->patternTab[i], reader->node) == 1) {
1568 xmlTextReaderPreserve(reader);
1569 break;
1570 }
1571 }
1572 }
1573 #endif /* LIBXML_PATTERN_ENABLED */
1574 #ifdef LIBXML_SCHEMAS_ENABLED
1575 if ((reader->validate == XML_TEXTREADER_VALIDATE_XSD) &&
1576 (reader->xsdValidErrors == 0) &&
1577 (reader->xsdValidCtxt != NULL)) {
1578 reader->xsdValidErrors = !xmlSchemaIsValid(reader->xsdValidCtxt);
1579 }
1580 #endif /* LIBXML_PATTERN_ENABLED */
1581 return(1);
1582 node_end:
1583 reader->state = XML_TEXTREADER_DONE;
1584 return(0);
1585 }
1586
1587 /**
1588 * xmlTextReaderReadState:
1589 * @reader: the xmlTextReaderPtr used
1590 *
1591 * Gets the read state of the reader.
1592 *
1593 * Returns the state value, or -1 in case of error
1594 */
1595 int
xmlTextReaderReadState(xmlTextReaderPtr reader)1596 xmlTextReaderReadState(xmlTextReaderPtr reader) {
1597 if (reader == NULL)
1598 return(-1);
1599 return(reader->mode);
1600 }
1601
1602 /**
1603 * xmlTextReaderExpand:
1604 * @reader: the xmlTextReaderPtr used
1605 *
1606 * Reads the contents of the current node and the full subtree. It then makes
1607 * the subtree available until the next xmlTextReaderRead() call
1608 *
1609 * Returns a node pointer valid until the next xmlTextReaderRead() call
1610 * or NULL in case of error.
1611 */
1612 xmlNodePtr
xmlTextReaderExpand(xmlTextReaderPtr reader)1613 xmlTextReaderExpand(xmlTextReaderPtr reader) {
1614 if ((reader == NULL) || (reader->node == NULL))
1615 return(NULL);
1616 if (reader->doc != NULL)
1617 return(reader->node);
1618 if (reader->ctxt == NULL)
1619 return(NULL);
1620 if (xmlTextReaderDoExpand(reader) < 0)
1621 return(NULL);
1622 return(reader->node);
1623 }
1624
1625 /**
1626 * xmlTextReaderNext:
1627 * @reader: the xmlTextReaderPtr used
1628 *
1629 * Skip to the node following the current one in document order while
1630 * avoiding the subtree if any.
1631 *
1632 * Returns 1 if the node was read successfully, 0 if there is no more
1633 * nodes to read, or -1 in case of error
1634 */
1635 int
xmlTextReaderNext(xmlTextReaderPtr reader)1636 xmlTextReaderNext(xmlTextReaderPtr reader) {
1637 int ret;
1638 xmlNodePtr cur;
1639
1640 if (reader == NULL)
1641 return(-1);
1642 if (reader->doc != NULL)
1643 return(xmlTextReaderNextTree(reader));
1644 cur = reader->node;
1645 if ((cur == NULL) || (cur->type != XML_ELEMENT_NODE))
1646 return(xmlTextReaderRead(reader));
1647 if (reader->state == XML_TEXTREADER_END || reader->state == XML_TEXTREADER_BACKTRACK)
1648 return(xmlTextReaderRead(reader));
1649 if (cur->extra & NODE_IS_EMPTY)
1650 return(xmlTextReaderRead(reader));
1651 do {
1652 ret = xmlTextReaderRead(reader);
1653 if (ret != 1)
1654 return(ret);
1655 } while (reader->node != cur);
1656 return(xmlTextReaderRead(reader));
1657 }
1658
1659 #ifdef LIBXML_WRITER_ENABLED
1660 /**
1661 * xmlTextReaderReadInnerXml:
1662 * @reader: the xmlTextReaderPtr used
1663 *
1664 * Reads the contents of the current node, including child nodes and markup.
1665 *
1666 * Returns a string containing the XML content, or NULL if the current node
1667 * is neither an element nor attribute, or has no child nodes. The
1668 * string must be deallocated by the caller.
1669 */
1670 xmlChar *
xmlTextReaderReadInnerXml(xmlTextReaderPtr reader ATTRIBUTE_UNUSED)1671 xmlTextReaderReadInnerXml(xmlTextReaderPtr reader ATTRIBUTE_UNUSED)
1672 {
1673 xmlChar *resbuf;
1674 xmlNodePtr node, cur_node;
1675 xmlBufferPtr buff, buff2;
1676 xmlDocPtr doc;
1677
1678 if (xmlTextReaderExpand(reader) == NULL) {
1679 return NULL;
1680 }
1681 doc = reader->doc;
1682 buff = xmlBufferCreate();
1683 for (cur_node = reader->node->children; cur_node != NULL;
1684 cur_node = cur_node->next) {
1685 node = xmlDocCopyNode(cur_node, doc, 1);
1686 buff2 = xmlBufferCreate();
1687 if (xmlNodeDump(buff2, doc, node, 0, 0) == -1) {
1688 xmlFreeNode(node);
1689 xmlBufferFree(buff2);
1690 xmlBufferFree(buff);
1691 return NULL;
1692 }
1693 xmlBufferCat(buff, buff2->content);
1694 xmlFreeNode(node);
1695 xmlBufferFree(buff2);
1696 }
1697 resbuf = buff->content;
1698 buff->content = NULL;
1699
1700 xmlBufferFree(buff);
1701 return resbuf;
1702 }
1703 #endif
1704
1705 #ifdef LIBXML_WRITER_ENABLED
1706 /**
1707 * xmlTextReaderReadOuterXml:
1708 * @reader: the xmlTextReaderPtr used
1709 *
1710 * Reads the contents of the current node, including child nodes and markup.
1711 *
1712 * Returns a string containing the node and any XML content, or NULL if the
1713 * current node cannot be serialized. The string must be deallocated
1714 * by the caller.
1715 */
1716 xmlChar *
xmlTextReaderReadOuterXml(xmlTextReaderPtr reader ATTRIBUTE_UNUSED)1717 xmlTextReaderReadOuterXml(xmlTextReaderPtr reader ATTRIBUTE_UNUSED)
1718 {
1719 xmlChar *resbuf;
1720 xmlNodePtr node;
1721 xmlBufferPtr buff;
1722 xmlDocPtr doc;
1723
1724 node = reader->node;
1725 doc = reader->doc;
1726 if (xmlTextReaderExpand(reader) == NULL) {
1727 return NULL;
1728 }
1729 if (node->type == XML_DTD_NODE) {
1730 node = (xmlNodePtr) xmlCopyDtd((xmlDtdPtr) node);
1731 } else {
1732 node = xmlDocCopyNode(node, doc, 1);
1733 }
1734 buff = xmlBufferCreate();
1735 if (xmlNodeDump(buff, doc, node, 0, 0) == -1) {
1736 xmlFreeNode(node);
1737 xmlBufferFree(buff);
1738 return NULL;
1739 }
1740
1741 resbuf = buff->content;
1742 buff->content = NULL;
1743
1744 xmlFreeNode(node);
1745 xmlBufferFree(buff);
1746 return resbuf;
1747 }
1748 #endif
1749
1750 /**
1751 * xmlTextReaderReadString:
1752 * @reader: the xmlTextReaderPtr used
1753 *
1754 * Reads the contents of an element or a text node as a string.
1755 *
1756 * Returns a string containing the contents of the Element or Text node,
1757 * or NULL if the reader is positioned on any other type of node.
1758 * The string must be deallocated by the caller.
1759 */
1760 xmlChar *
xmlTextReaderReadString(xmlTextReaderPtr reader)1761 xmlTextReaderReadString(xmlTextReaderPtr reader)
1762 {
1763 xmlNodePtr node;
1764
1765 if ((reader == NULL) || (reader->node == NULL))
1766 return(NULL);
1767
1768 node = (reader->curnode != NULL) ? reader->curnode : reader->node;
1769 switch (node->type) {
1770 case XML_TEXT_NODE:
1771 if (node->content != NULL)
1772 return(xmlStrdup(node->content));
1773 break;
1774 case XML_ELEMENT_NODE:
1775 if (xmlTextReaderDoExpand(reader) != -1) {
1776 return xmlTextReaderCollectSiblings(node->children);
1777 }
1778 case XML_ATTRIBUTE_NODE:
1779 TODO
1780 break;
1781 default:
1782 break;
1783 }
1784 return(NULL);
1785 }
1786
1787 #if 0
1788 /**
1789 * xmlTextReaderReadBase64:
1790 * @reader: the xmlTextReaderPtr used
1791 * @array: a byte array to store the content.
1792 * @offset: the zero-based index into array where the method should
1793 * begin to write.
1794 * @len: the number of bytes to write.
1795 *
1796 * Reads and decodes the Base64 encoded contents of an element and
1797 * stores the result in a byte buffer.
1798 *
1799 * Returns the number of bytes written to array, or zero if the current
1800 * instance is not positioned on an element or -1 in case of error.
1801 */
1802 int
1803 xmlTextReaderReadBase64(xmlTextReaderPtr reader,
1804 unsigned char *array ATTRIBUTE_UNUSED,
1805 int offset ATTRIBUTE_UNUSED,
1806 int len ATTRIBUTE_UNUSED) {
1807 if ((reader == NULL) || (reader->ctxt == NULL))
1808 return(-1);
1809 if (reader->ctxt->wellFormed != 1)
1810 return(-1);
1811
1812 if ((reader->node == NULL) || (reader->node->type == XML_ELEMENT_NODE))
1813 return(0);
1814 TODO
1815 return(0);
1816 }
1817
1818 /**
1819 * xmlTextReaderReadBinHex:
1820 * @reader: the xmlTextReaderPtr used
1821 * @array: a byte array to store the content.
1822 * @offset: the zero-based index into array where the method should
1823 * begin to write.
1824 * @len: the number of bytes to write.
1825 *
1826 * Reads and decodes the BinHex encoded contents of an element and
1827 * stores the result in a byte buffer.
1828 *
1829 * Returns the number of bytes written to array, or zero if the current
1830 * instance is not positioned on an element or -1 in case of error.
1831 */
1832 int
1833 xmlTextReaderReadBinHex(xmlTextReaderPtr reader,
1834 unsigned char *array ATTRIBUTE_UNUSED,
1835 int offset ATTRIBUTE_UNUSED,
1836 int len ATTRIBUTE_UNUSED) {
1837 if ((reader == NULL) || (reader->ctxt == NULL))
1838 return(-1);
1839 if (reader->ctxt->wellFormed != 1)
1840 return(-1);
1841
1842 if ((reader->node == NULL) || (reader->node->type == XML_ELEMENT_NODE))
1843 return(0);
1844 TODO
1845 return(0);
1846 }
1847 #endif
1848
1849 /************************************************************************
1850 * *
1851 * Operating on a preparsed tree *
1852 * *
1853 ************************************************************************/
1854 static int
xmlTextReaderNextTree(xmlTextReaderPtr reader)1855 xmlTextReaderNextTree(xmlTextReaderPtr reader)
1856 {
1857 if (reader == NULL)
1858 return(-1);
1859
1860 if (reader->state == XML_TEXTREADER_END)
1861 return(0);
1862
1863 if (reader->node == NULL) {
1864 if (reader->doc->children == NULL) {
1865 reader->state = XML_TEXTREADER_END;
1866 return(0);
1867 }
1868
1869 reader->node = reader->doc->children;
1870 reader->state = XML_TEXTREADER_START;
1871 return(1);
1872 }
1873
1874 if (reader->state != XML_TEXTREADER_BACKTRACK) {
1875 /* Here removed traversal to child, because we want to skip the subtree,
1876 replace with traversal to sibling to skip subtree */
1877 if (reader->node->next != 0) {
1878 /* Move to sibling if present,skipping sub-tree */
1879 reader->node = reader->node->next;
1880 reader->state = XML_TEXTREADER_START;
1881 return(1);
1882 }
1883
1884 /* if reader->node->next is NULL mean no subtree for current node,
1885 so need to move to sibling of parent node if present */
1886 if ((reader->node->type == XML_ELEMENT_NODE) ||
1887 (reader->node->type == XML_ATTRIBUTE_NODE)) {
1888 reader->state = XML_TEXTREADER_BACKTRACK;
1889 /* This will move to parent if present */
1890 xmlTextReaderRead(reader);
1891 }
1892 }
1893
1894 if (reader->node->next != 0) {
1895 reader->node = reader->node->next;
1896 reader->state = XML_TEXTREADER_START;
1897 return(1);
1898 }
1899
1900 if (reader->node->parent != 0) {
1901 if (reader->node->parent->type == XML_DOCUMENT_NODE) {
1902 reader->state = XML_TEXTREADER_END;
1903 return(0);
1904 }
1905
1906 reader->node = reader->node->parent;
1907 reader->depth--;
1908 reader->state = XML_TEXTREADER_BACKTRACK;
1909 /* Repeat process to move to sibling of parent node if present */
1910 xmlTextReaderNextTree(reader);
1911 }
1912
1913 reader->state = XML_TEXTREADER_END;
1914
1915 return(1);
1916 }
1917
1918 /**
1919 * xmlTextReaderReadTree:
1920 * @reader: the xmlTextReaderPtr used
1921 *
1922 * Moves the position of the current instance to the next node in
1923 * the stream, exposing its properties.
1924 *
1925 * Returns 1 if the node was read successfully, 0 if there is no more
1926 * nodes to read, or -1 in case of error
1927 */
1928 static int
xmlTextReaderReadTree(xmlTextReaderPtr reader)1929 xmlTextReaderReadTree(xmlTextReaderPtr reader) {
1930 if (reader->state == XML_TEXTREADER_END)
1931 return(0);
1932
1933 next_node:
1934 if (reader->node == NULL) {
1935 if (reader->doc->children == NULL) {
1936 reader->state = XML_TEXTREADER_END;
1937 return(0);
1938 }
1939
1940 reader->node = reader->doc->children;
1941 reader->state = XML_TEXTREADER_START;
1942 goto found_node;
1943 }
1944
1945 if ((reader->state != XML_TEXTREADER_BACKTRACK) &&
1946 (reader->node->type != XML_DTD_NODE) &&
1947 (reader->node->type != XML_XINCLUDE_START) &&
1948 (reader->node->type != XML_ENTITY_REF_NODE)) {
1949 if (reader->node->children != NULL) {
1950 reader->node = reader->node->children;
1951 reader->depth++;
1952 reader->state = XML_TEXTREADER_START;
1953 goto found_node;
1954 }
1955
1956 if (reader->node->type == XML_ATTRIBUTE_NODE) {
1957 reader->state = XML_TEXTREADER_BACKTRACK;
1958 goto found_node;
1959 }
1960 }
1961
1962 if (reader->node->next != NULL) {
1963 reader->node = reader->node->next;
1964 reader->state = XML_TEXTREADER_START;
1965 goto found_node;
1966 }
1967
1968 if (reader->node->parent != NULL) {
1969 if ((reader->node->parent->type == XML_DOCUMENT_NODE) ||
1970 (reader->node->parent->type == XML_HTML_DOCUMENT_NODE)) {
1971 reader->state = XML_TEXTREADER_END;
1972 return(0);
1973 }
1974
1975 reader->node = reader->node->parent;
1976 reader->depth--;
1977 reader->state = XML_TEXTREADER_BACKTRACK;
1978 goto found_node;
1979 }
1980
1981 reader->state = XML_TEXTREADER_END;
1982
1983 found_node:
1984 if ((reader->node->type == XML_XINCLUDE_START) ||
1985 (reader->node->type == XML_XINCLUDE_END))
1986 goto next_node;
1987
1988 return(1);
1989 }
1990
1991 /**
1992 * xmlTextReaderNextSibling:
1993 * @reader: the xmlTextReaderPtr used
1994 *
1995 * Skip to the node following the current one in document order while
1996 * avoiding the subtree if any.
1997 * Currently implemented only for Readers built on a document
1998 *
1999 * Returns 1 if the node was read successfully, 0 if there is no more
2000 * nodes to read, or -1 in case of error
2001 */
2002 int
xmlTextReaderNextSibling(xmlTextReaderPtr reader)2003 xmlTextReaderNextSibling(xmlTextReaderPtr reader) {
2004 if (reader == NULL)
2005 return(-1);
2006 if (reader->doc == NULL) {
2007 /* TODO */
2008 return(-1);
2009 }
2010
2011 if (reader->state == XML_TEXTREADER_END)
2012 return(0);
2013
2014 if (reader->node == NULL)
2015 return(xmlTextReaderNextTree(reader));
2016
2017 if (reader->node->next != NULL) {
2018 reader->node = reader->node->next;
2019 reader->state = XML_TEXTREADER_START;
2020 return(1);
2021 }
2022
2023 return(0);
2024 }
2025
2026 /************************************************************************
2027 * *
2028 * Constructor and destructors *
2029 * *
2030 ************************************************************************/
2031 /**
2032 * xmlNewTextReader:
2033 * @input: the xmlParserInputBufferPtr used to read data
2034 * @URI: the URI information for the source if available
2035 *
2036 * Create an xmlTextReader structure fed with @input
2037 *
2038 * Returns the new xmlTextReaderPtr or NULL in case of error
2039 */
2040 xmlTextReaderPtr
xmlNewTextReader(xmlParserInputBufferPtr input,const char * URI)2041 xmlNewTextReader(xmlParserInputBufferPtr input, const char *URI) {
2042 xmlTextReaderPtr ret;
2043
2044 if (input == NULL)
2045 return(NULL);
2046 ret = xmlMalloc(sizeof(xmlTextReader));
2047 if (ret == NULL) {
2048 xmlGenericError(xmlGenericErrorContext,
2049 "xmlNewTextReader : malloc failed\n");
2050 return(NULL);
2051 }
2052 memset(ret, 0, sizeof(xmlTextReader));
2053 ret->doc = NULL;
2054 ret->entTab = NULL;
2055 ret->entMax = 0;
2056 ret->entNr = 0;
2057 ret->input = input;
2058 ret->buffer = xmlBufferCreateSize(100);
2059 if (ret->buffer == NULL) {
2060 xmlFree(ret);
2061 xmlGenericError(xmlGenericErrorContext,
2062 "xmlNewTextReader : malloc failed\n");
2063 return(NULL);
2064 }
2065 ret->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler));
2066 if (ret->sax == NULL) {
2067 xmlBufferFree(ret->buffer);
2068 xmlFree(ret);
2069 xmlGenericError(xmlGenericErrorContext,
2070 "xmlNewTextReader : malloc failed\n");
2071 return(NULL);
2072 }
2073 xmlSAXVersion(ret->sax, 2);
2074 ret->startElement = ret->sax->startElement;
2075 ret->sax->startElement = xmlTextReaderStartElement;
2076 ret->endElement = ret->sax->endElement;
2077 ret->sax->endElement = xmlTextReaderEndElement;
2078 #ifdef LIBXML_SAX1_ENABLED
2079 if (ret->sax->initialized == XML_SAX2_MAGIC) {
2080 #endif /* LIBXML_SAX1_ENABLED */
2081 ret->startElementNs = ret->sax->startElementNs;
2082 ret->sax->startElementNs = xmlTextReaderStartElementNs;
2083 ret->endElementNs = ret->sax->endElementNs;
2084 ret->sax->endElementNs = xmlTextReaderEndElementNs;
2085 #ifdef LIBXML_SAX1_ENABLED
2086 } else {
2087 ret->startElementNs = NULL;
2088 ret->endElementNs = NULL;
2089 }
2090 #endif /* LIBXML_SAX1_ENABLED */
2091 ret->characters = ret->sax->characters;
2092 ret->sax->characters = xmlTextReaderCharacters;
2093 ret->sax->ignorableWhitespace = xmlTextReaderCharacters;
2094 ret->cdataBlock = ret->sax->cdataBlock;
2095 ret->sax->cdataBlock = xmlTextReaderCDataBlock;
2096
2097 ret->mode = XML_TEXTREADER_MODE_INITIAL;
2098 ret->node = NULL;
2099 ret->curnode = NULL;
2100 if (ret->input->buffer->use < 4) {
2101 xmlParserInputBufferRead(input, 4);
2102 }
2103 if (ret->input->buffer->use >= 4) {
2104 ret->ctxt = xmlCreatePushParserCtxt(ret->sax, NULL,
2105 (const char *) ret->input->buffer->content, 4, URI);
2106 ret->base = 0;
2107 ret->cur = 4;
2108 } else {
2109 ret->ctxt = xmlCreatePushParserCtxt(ret->sax, NULL, NULL, 0, URI);
2110 ret->base = 0;
2111 ret->cur = 0;
2112 }
2113
2114 if (ret->ctxt == NULL) {
2115 xmlGenericError(xmlGenericErrorContext,
2116 "xmlNewTextReader : malloc failed\n");
2117 xmlBufferFree(ret->buffer);
2118 xmlFree(ret->sax);
2119 xmlFree(ret);
2120 return(NULL);
2121 }
2122 ret->ctxt->parseMode = XML_PARSE_READER;
2123 ret->ctxt->_private = ret;
2124 ret->ctxt->linenumbers = 1;
2125 ret->ctxt->dictNames = 1;
2126 ret->allocs = XML_TEXTREADER_CTXT;
2127 /*
2128 * use the parser dictionnary to allocate all elements and attributes names
2129 */
2130 ret->ctxt->docdict = 1;
2131 ret->dict = ret->ctxt->dict;
2132 #ifdef LIBXML_XINCLUDE_ENABLED
2133 ret->xinclude = 0;
2134 #endif
2135 #ifdef LIBXML_PATTERN_ENABLED
2136 ret->patternMax = 0;
2137 ret->patternTab = NULL;
2138 #endif
2139 return(ret);
2140 }
2141
2142 /**
2143 * xmlNewTextReaderFilename:
2144 * @URI: the URI of the resource to process
2145 *
2146 * Create an xmlTextReader structure fed with the resource at @URI
2147 *
2148 * Returns the new xmlTextReaderPtr or NULL in case of error
2149 */
2150 xmlTextReaderPtr
xmlNewTextReaderFilename(const char * URI)2151 xmlNewTextReaderFilename(const char *URI) {
2152 xmlParserInputBufferPtr input;
2153 xmlTextReaderPtr ret;
2154 char *directory = NULL;
2155
2156 input = xmlParserInputBufferCreateFilename(URI, XML_CHAR_ENCODING_NONE);
2157 if (input == NULL)
2158 return(NULL);
2159 ret = xmlNewTextReader(input, URI);
2160 if (ret == NULL) {
2161 xmlFreeParserInputBuffer(input);
2162 return(NULL);
2163 }
2164 ret->allocs |= XML_TEXTREADER_INPUT;
2165 if (ret->ctxt->directory == NULL)
2166 directory = xmlParserGetDirectory(URI);
2167 if ((ret->ctxt->directory == NULL) && (directory != NULL))
2168 ret->ctxt->directory = (char *) xmlStrdup((xmlChar *) directory);
2169 if (directory != NULL)
2170 xmlFree(directory);
2171 return(ret);
2172 }
2173
2174 /**
2175 * xmlFreeTextReader:
2176 * @reader: the xmlTextReaderPtr
2177 *
2178 * Deallocate all the resources associated to the reader
2179 */
2180 void
xmlFreeTextReader(xmlTextReaderPtr reader)2181 xmlFreeTextReader(xmlTextReaderPtr reader) {
2182 if (reader == NULL)
2183 return;
2184 #ifdef LIBXML_SCHEMAS_ENABLED
2185 if (reader->rngSchemas != NULL) {
2186 xmlRelaxNGFree(reader->rngSchemas);
2187 reader->rngSchemas = NULL;
2188 }
2189 if (reader->rngValidCtxt != NULL) {
2190 xmlRelaxNGFreeValidCtxt(reader->rngValidCtxt);
2191 reader->rngValidCtxt = NULL;
2192 }
2193 if (reader->xsdPlug != NULL) {
2194 xmlSchemaSAXUnplug(reader->xsdPlug);
2195 reader->xsdPlug = NULL;
2196 }
2197 if (reader->xsdValidCtxt != NULL) {
2198 if (! reader->xsdPreserveCtxt)
2199 xmlSchemaFreeValidCtxt(reader->xsdValidCtxt);
2200 reader->xsdValidCtxt = NULL;
2201 }
2202 if (reader->xsdSchemas != NULL) {
2203 xmlSchemaFree(reader->xsdSchemas);
2204 reader->xsdSchemas = NULL;
2205 }
2206 #endif
2207 #ifdef LIBXML_XINCLUDE_ENABLED
2208 if (reader->xincctxt != NULL)
2209 xmlXIncludeFreeContext(reader->xincctxt);
2210 #endif
2211 #ifdef LIBXML_PATTERN_ENABLED
2212 if (reader->patternTab != NULL) {
2213 int i;
2214 for (i = 0;i < reader->patternNr;i++) {
2215 if (reader->patternTab[i] != NULL)
2216 xmlFreePattern(reader->patternTab[i]);
2217 }
2218 xmlFree(reader->patternTab);
2219 }
2220 #endif
2221 if (reader->faketext != NULL) {
2222 xmlFreeNode(reader->faketext);
2223 }
2224 if (reader->ctxt != NULL) {
2225 if (reader->dict == reader->ctxt->dict)
2226 reader->dict = NULL;
2227 if (reader->ctxt->myDoc != NULL) {
2228 if (reader->preserve == 0)
2229 xmlTextReaderFreeDoc(reader, reader->ctxt->myDoc);
2230 reader->ctxt->myDoc = NULL;
2231 }
2232 if ((reader->ctxt->vctxt.vstateTab != NULL) &&
2233 (reader->ctxt->vctxt.vstateMax > 0)){
2234 xmlFree(reader->ctxt->vctxt.vstateTab);
2235 reader->ctxt->vctxt.vstateTab = NULL;
2236 reader->ctxt->vctxt.vstateMax = 0;
2237 }
2238 if (reader->allocs & XML_TEXTREADER_CTXT)
2239 xmlFreeParserCtxt(reader->ctxt);
2240 }
2241 if (reader->sax != NULL)
2242 xmlFree(reader->sax);
2243 if ((reader->input != NULL) && (reader->allocs & XML_TEXTREADER_INPUT))
2244 xmlFreeParserInputBuffer(reader->input);
2245 if (reader->buffer != NULL)
2246 xmlBufferFree(reader->buffer);
2247 if (reader->entTab != NULL)
2248 xmlFree(reader->entTab);
2249 if (reader->dict != NULL)
2250 xmlDictFree(reader->dict);
2251 xmlFree(reader);
2252 }
2253
2254 /************************************************************************
2255 * *
2256 * Methods for XmlTextReader *
2257 * *
2258 ************************************************************************/
2259 /**
2260 * xmlTextReaderClose:
2261 * @reader: the xmlTextReaderPtr used
2262 *
2263 * This method releases any resources allocated by the current instance
2264 * changes the state to Closed and close any underlying input.
2265 *
2266 * Returns 0 or -1 in case of error
2267 */
2268 int
xmlTextReaderClose(xmlTextReaderPtr reader)2269 xmlTextReaderClose(xmlTextReaderPtr reader) {
2270 if (reader == NULL)
2271 return(-1);
2272 reader->node = NULL;
2273 reader->curnode = NULL;
2274 reader->mode = XML_TEXTREADER_MODE_CLOSED;
2275 if (reader->ctxt != NULL) {
2276 xmlStopParser(reader->ctxt);
2277 if (reader->ctxt->myDoc != NULL) {
2278 if (reader->preserve == 0)
2279 xmlTextReaderFreeDoc(reader, reader->ctxt->myDoc);
2280 reader->ctxt->myDoc = NULL;
2281 }
2282 }
2283 if ((reader->input != NULL) && (reader->allocs & XML_TEXTREADER_INPUT)) {
2284 xmlFreeParserInputBuffer(reader->input);
2285 reader->allocs -= XML_TEXTREADER_INPUT;
2286 }
2287 return(0);
2288 }
2289
2290 /**
2291 * xmlTextReaderGetAttributeNo:
2292 * @reader: the xmlTextReaderPtr used
2293 * @no: the zero-based index of the attribute relative to the containing element
2294 *
2295 * Provides the value of the attribute with the specified index relative
2296 * to the containing element.
2297 *
2298 * Returns a string containing the value of the specified attribute, or NULL
2299 * in case of error. The string must be deallocated by the caller.
2300 */
2301 xmlChar *
xmlTextReaderGetAttributeNo(xmlTextReaderPtr reader,int no)2302 xmlTextReaderGetAttributeNo(xmlTextReaderPtr reader, int no) {
2303 xmlChar *ret;
2304 int i;
2305 xmlAttrPtr cur;
2306 xmlNsPtr ns;
2307
2308 if (reader == NULL)
2309 return(NULL);
2310 if (reader->node == NULL)
2311 return(NULL);
2312 if (reader->curnode != NULL)
2313 return(NULL);
2314 /* TODO: handle the xmlDecl */
2315 if (reader->node->type != XML_ELEMENT_NODE)
2316 return(NULL);
2317
2318 ns = reader->node->nsDef;
2319 for (i = 0;(i < no) && (ns != NULL);i++) {
2320 ns = ns->next;
2321 }
2322 if (ns != NULL)
2323 return(xmlStrdup(ns->href));
2324
2325 cur = reader->node->properties;
2326 if (cur == NULL)
2327 return(NULL);
2328 for (;i < no;i++) {
2329 cur = cur->next;
2330 if (cur == NULL)
2331 return(NULL);
2332 }
2333 /* TODO walk the DTD if present */
2334
2335 ret = xmlNodeListGetString(reader->node->doc, cur->children, 1);
2336 if (ret == NULL) return(xmlStrdup((xmlChar *)""));
2337 return(ret);
2338 }
2339
2340 /**
2341 * xmlTextReaderGetAttribute:
2342 * @reader: the xmlTextReaderPtr used
2343 * @name: the qualified name of the attribute.
2344 *
2345 * Provides the value of the attribute with the specified qualified name.
2346 *
2347 * Returns a string containing the value of the specified attribute, or NULL
2348 * in case of error. The string must be deallocated by the caller.
2349 */
2350 xmlChar *
xmlTextReaderGetAttribute(xmlTextReaderPtr reader,const xmlChar * name)2351 xmlTextReaderGetAttribute(xmlTextReaderPtr reader, const xmlChar *name) {
2352 xmlChar *prefix = NULL;
2353 xmlChar *localname;
2354 xmlNsPtr ns;
2355 xmlChar *ret = NULL;
2356
2357 if ((reader == NULL) || (name == NULL))
2358 return(NULL);
2359 if (reader->node == NULL)
2360 return(NULL);
2361 if (reader->curnode != NULL)
2362 return(NULL);
2363
2364 /* TODO: handle the xmlDecl */
2365 if (reader->node->type != XML_ELEMENT_NODE)
2366 return(NULL);
2367
2368 localname = xmlSplitQName2(name, &prefix);
2369 if (localname == NULL) {
2370 /*
2371 * Namespace default decl
2372 */
2373 if (xmlStrEqual(name, BAD_CAST "xmlns")) {
2374 ns = reader->node->nsDef;
2375 while (ns != NULL) {
2376 if (ns->prefix == NULL) {
2377 return(xmlStrdup(ns->href));
2378 }
2379 ns = ns->next;
2380 }
2381 return NULL;
2382 }
2383 return(xmlGetNoNsProp(reader->node, name));
2384 }
2385
2386 /*
2387 * Namespace default decl
2388 */
2389 if (xmlStrEqual(prefix, BAD_CAST "xmlns")) {
2390 ns = reader->node->nsDef;
2391 while (ns != NULL) {
2392 if ((ns->prefix != NULL) && (xmlStrEqual(ns->prefix, localname))) {
2393 ret = xmlStrdup(ns->href);
2394 break;
2395 }
2396 ns = ns->next;
2397 }
2398 } else {
2399 ns = xmlSearchNs(reader->node->doc, reader->node, prefix);
2400 if (ns != NULL)
2401 ret = xmlGetNsProp(reader->node, localname, ns->href);
2402 }
2403
2404 xmlFree(localname);
2405 if (prefix != NULL)
2406 xmlFree(prefix);
2407 return(ret);
2408 }
2409
2410
2411 /**
2412 * xmlTextReaderGetAttributeNs:
2413 * @reader: the xmlTextReaderPtr used
2414 * @localName: the local name of the attribute.
2415 * @namespaceURI: the namespace URI of the attribute.
2416 *
2417 * Provides the value of the specified attribute
2418 *
2419 * Returns a string containing the value of the specified attribute, or NULL
2420 * in case of error. The string must be deallocated by the caller.
2421 */
2422 xmlChar *
xmlTextReaderGetAttributeNs(xmlTextReaderPtr reader,const xmlChar * localName,const xmlChar * namespaceURI)2423 xmlTextReaderGetAttributeNs(xmlTextReaderPtr reader, const xmlChar *localName,
2424 const xmlChar *namespaceURI) {
2425 xmlChar *prefix = NULL;
2426 xmlNsPtr ns;
2427
2428 if ((reader == NULL) || (localName == NULL))
2429 return(NULL);
2430 if (reader->node == NULL)
2431 return(NULL);
2432 if (reader->curnode != NULL)
2433 return(NULL);
2434
2435 /* TODO: handle the xmlDecl */
2436 if (reader->node->type != XML_ELEMENT_NODE)
2437 return(NULL);
2438
2439 if (xmlStrEqual(namespaceURI, BAD_CAST "http://www.w3.org/2000/xmlns/")) {
2440 if (! xmlStrEqual(localName, BAD_CAST "xmlns")) {
2441 prefix = BAD_CAST localName;
2442 }
2443 ns = reader->node->nsDef;
2444 while (ns != NULL) {
2445 if ((prefix == NULL && ns->prefix == NULL) ||
2446 ((ns->prefix != NULL) && (xmlStrEqual(ns->prefix, localName)))) {
2447 return xmlStrdup(ns->href);
2448 }
2449 ns = ns->next;
2450 }
2451 return NULL;
2452 }
2453
2454 return(xmlGetNsProp(reader->node, localName, namespaceURI));
2455 }
2456
2457 /**
2458 * xmlTextReaderGetRemainder:
2459 * @reader: the xmlTextReaderPtr used
2460 *
2461 * Method to get the remainder of the buffered XML. this method stops the
2462 * parser, set its state to End Of File and return the input stream with
2463 * what is left that the parser did not use.
2464 *
2465 * The implementation is not good, the parser certainly procgressed past
2466 * what's left in reader->input, and there is an allocation problem. Best
2467 * would be to rewrite it differently.
2468 *
2469 * Returns the xmlParserInputBufferPtr attached to the XML or NULL
2470 * in case of error.
2471 */
2472 xmlParserInputBufferPtr
xmlTextReaderGetRemainder(xmlTextReaderPtr reader)2473 xmlTextReaderGetRemainder(xmlTextReaderPtr reader) {
2474 xmlParserInputBufferPtr ret = NULL;
2475
2476 if (reader == NULL)
2477 return(NULL);
2478 if (reader->node == NULL)
2479 return(NULL);
2480
2481 reader->node = NULL;
2482 reader->curnode = NULL;
2483 reader->mode = XML_TEXTREADER_MODE_EOF;
2484 if (reader->ctxt != NULL) {
2485 xmlStopParser(reader->ctxt);
2486 if (reader->ctxt->myDoc != NULL) {
2487 if (reader->preserve == 0)
2488 xmlTextReaderFreeDoc(reader, reader->ctxt->myDoc);
2489 reader->ctxt->myDoc = NULL;
2490 }
2491 }
2492 if (reader->allocs & XML_TEXTREADER_INPUT) {
2493 ret = reader->input;
2494 reader->input = NULL;
2495 reader->allocs -= XML_TEXTREADER_INPUT;
2496 } else {
2497 /*
2498 * Hum, one may need to duplicate the data structure because
2499 * without reference counting the input may be freed twice:
2500 * - by the layer which allocated it.
2501 * - by the layer to which would have been returned to.
2502 */
2503 TODO
2504 return(NULL);
2505 }
2506 return(ret);
2507 }
2508
2509 /**
2510 * xmlTextReaderLookupNamespace:
2511 * @reader: the xmlTextReaderPtr used
2512 * @prefix: the prefix whose namespace URI is to be resolved. To return
2513 * the default namespace, specify NULL
2514 *
2515 * Resolves a namespace prefix in the scope of the current element.
2516 *
2517 * Returns a string containing the namespace URI to which the prefix maps
2518 * or NULL in case of error. The string must be deallocated by the caller.
2519 */
2520 xmlChar *
xmlTextReaderLookupNamespace(xmlTextReaderPtr reader,const xmlChar * prefix)2521 xmlTextReaderLookupNamespace(xmlTextReaderPtr reader, const xmlChar *prefix) {
2522 xmlNsPtr ns;
2523
2524 if (reader == NULL)
2525 return(NULL);
2526 if (reader->node == NULL)
2527 return(NULL);
2528
2529 ns = xmlSearchNs(reader->node->doc, reader->node, prefix);
2530 if (ns == NULL)
2531 return(NULL);
2532 return(xmlStrdup(ns->href));
2533 }
2534
2535 /**
2536 * xmlTextReaderMoveToAttributeNo:
2537 * @reader: the xmlTextReaderPtr used
2538 * @no: the zero-based index of the attribute relative to the containing
2539 * element.
2540 *
2541 * Moves the position of the current instance to the attribute with
2542 * the specified index relative to the containing element.
2543 *
2544 * Returns 1 in case of success, -1 in case of error, 0 if not found
2545 */
2546 int
xmlTextReaderMoveToAttributeNo(xmlTextReaderPtr reader,int no)2547 xmlTextReaderMoveToAttributeNo(xmlTextReaderPtr reader, int no) {
2548 int i;
2549 xmlAttrPtr cur;
2550 xmlNsPtr ns;
2551
2552 if (reader == NULL)
2553 return(-1);
2554 if (reader->node == NULL)
2555 return(-1);
2556 /* TODO: handle the xmlDecl */
2557 if (reader->node->type != XML_ELEMENT_NODE)
2558 return(-1);
2559
2560 reader->curnode = NULL;
2561
2562 ns = reader->node->nsDef;
2563 for (i = 0;(i < no) && (ns != NULL);i++) {
2564 ns = ns->next;
2565 }
2566 if (ns != NULL) {
2567 reader->curnode = (xmlNodePtr) ns;
2568 return(1);
2569 }
2570
2571 cur = reader->node->properties;
2572 if (cur == NULL)
2573 return(0);
2574 for (;i < no;i++) {
2575 cur = cur->next;
2576 if (cur == NULL)
2577 return(0);
2578 }
2579 /* TODO walk the DTD if present */
2580
2581 reader->curnode = (xmlNodePtr) cur;
2582 return(1);
2583 }
2584
2585 /**
2586 * xmlTextReaderMoveToAttribute:
2587 * @reader: the xmlTextReaderPtr used
2588 * @name: the qualified name of the attribute.
2589 *
2590 * Moves the position of the current instance to the attribute with
2591 * the specified qualified name.
2592 *
2593 * Returns 1 in case of success, -1 in case of error, 0 if not found
2594 */
2595 int
xmlTextReaderMoveToAttribute(xmlTextReaderPtr reader,const xmlChar * name)2596 xmlTextReaderMoveToAttribute(xmlTextReaderPtr reader, const xmlChar *name) {
2597 xmlChar *prefix = NULL;
2598 xmlChar *localname;
2599 xmlNsPtr ns;
2600 xmlAttrPtr prop;
2601
2602 if ((reader == NULL) || (name == NULL))
2603 return(-1);
2604 if (reader->node == NULL)
2605 return(-1);
2606
2607 /* TODO: handle the xmlDecl */
2608 if (reader->node->type != XML_ELEMENT_NODE)
2609 return(0);
2610
2611 localname = xmlSplitQName2(name, &prefix);
2612 if (localname == NULL) {
2613 /*
2614 * Namespace default decl
2615 */
2616 if (xmlStrEqual(name, BAD_CAST "xmlns")) {
2617 ns = reader->node->nsDef;
2618 while (ns != NULL) {
2619 if (ns->prefix == NULL) {
2620 reader->curnode = (xmlNodePtr) ns;
2621 return(1);
2622 }
2623 ns = ns->next;
2624 }
2625 return(0);
2626 }
2627
2628 prop = reader->node->properties;
2629 while (prop != NULL) {
2630 /*
2631 * One need to have
2632 * - same attribute names
2633 * - and the attribute carrying that namespace
2634 */
2635 if ((xmlStrEqual(prop->name, name)) &&
2636 ((prop->ns == NULL) || (prop->ns->prefix == NULL))) {
2637 reader->curnode = (xmlNodePtr) prop;
2638 return(1);
2639 }
2640 prop = prop->next;
2641 }
2642 return(0);
2643 }
2644
2645 /*
2646 * Namespace default decl
2647 */
2648 if (xmlStrEqual(prefix, BAD_CAST "xmlns")) {
2649 ns = reader->node->nsDef;
2650 while (ns != NULL) {
2651 if ((ns->prefix != NULL) && (xmlStrEqual(ns->prefix, localname))) {
2652 reader->curnode = (xmlNodePtr) ns;
2653 goto found;
2654 }
2655 ns = ns->next;
2656 }
2657 goto not_found;
2658 }
2659 prop = reader->node->properties;
2660 while (prop != NULL) {
2661 /*
2662 * One need to have
2663 * - same attribute names
2664 * - and the attribute carrying that namespace
2665 */
2666 if ((xmlStrEqual(prop->name, localname)) &&
2667 (prop->ns != NULL) && (xmlStrEqual(prop->ns->prefix, prefix))) {
2668 reader->curnode = (xmlNodePtr) prop;
2669 goto found;
2670 }
2671 prop = prop->next;
2672 }
2673 not_found:
2674 if (localname != NULL)
2675 xmlFree(localname);
2676 if (prefix != NULL)
2677 xmlFree(prefix);
2678 return(0);
2679
2680 found:
2681 if (localname != NULL)
2682 xmlFree(localname);
2683 if (prefix != NULL)
2684 xmlFree(prefix);
2685 return(1);
2686 }
2687
2688 /**
2689 * xmlTextReaderMoveToAttributeNs:
2690 * @reader: the xmlTextReaderPtr used
2691 * @localName: the local name of the attribute.
2692 * @namespaceURI: the namespace URI of the attribute.
2693 *
2694 * Moves the position of the current instance to the attribute with the
2695 * specified local name and namespace URI.
2696 *
2697 * Returns 1 in case of success, -1 in case of error, 0 if not found
2698 */
2699 int
xmlTextReaderMoveToAttributeNs(xmlTextReaderPtr reader,const xmlChar * localName,const xmlChar * namespaceURI)2700 xmlTextReaderMoveToAttributeNs(xmlTextReaderPtr reader,
2701 const xmlChar *localName, const xmlChar *namespaceURI) {
2702 xmlAttrPtr prop;
2703 xmlNodePtr node;
2704 xmlNsPtr ns;
2705 xmlChar *prefix = NULL;
2706
2707 if ((reader == NULL) || (localName == NULL) || (namespaceURI == NULL))
2708 return(-1);
2709 if (reader->node == NULL)
2710 return(-1);
2711 if (reader->node->type != XML_ELEMENT_NODE)
2712 return(0);
2713 node = reader->node;
2714
2715 if (xmlStrEqual(namespaceURI, BAD_CAST "http://www.w3.org/2000/xmlns/")) {
2716 if (! xmlStrEqual(localName, BAD_CAST "xmlns")) {
2717 prefix = BAD_CAST localName;
2718 }
2719 ns = reader->node->nsDef;
2720 while (ns != NULL) {
2721 if ((prefix == NULL && ns->prefix == NULL) ||
2722 ((ns->prefix != NULL) && (xmlStrEqual(ns->prefix, localName)))) {
2723 reader->curnode = (xmlNodePtr) ns;
2724 return(1);
2725 }
2726 ns = ns->next;
2727 }
2728 return(0);
2729 }
2730
2731 prop = node->properties;
2732 while (prop != NULL) {
2733 /*
2734 * One need to have
2735 * - same attribute names
2736 * - and the attribute carrying that namespace
2737 */
2738 if (xmlStrEqual(prop->name, localName) &&
2739 ((prop->ns != NULL) &&
2740 (xmlStrEqual(prop->ns->href, namespaceURI)))) {
2741 reader->curnode = (xmlNodePtr) prop;
2742 return(1);
2743 }
2744 prop = prop->next;
2745 }
2746 return(0);
2747 }
2748
2749 /**
2750 * xmlTextReaderMoveToFirstAttribute:
2751 * @reader: the xmlTextReaderPtr used
2752 *
2753 * Moves the position of the current instance to the first attribute
2754 * associated with the current node.
2755 *
2756 * Returns 1 in case of success, -1 in case of error, 0 if not found
2757 */
2758 int
xmlTextReaderMoveToFirstAttribute(xmlTextReaderPtr reader)2759 xmlTextReaderMoveToFirstAttribute(xmlTextReaderPtr reader) {
2760 if (reader == NULL)
2761 return(-1);
2762 if (reader->node == NULL)
2763 return(-1);
2764 if (reader->node->type != XML_ELEMENT_NODE)
2765 return(0);
2766
2767 if (reader->node->nsDef != NULL) {
2768 reader->curnode = (xmlNodePtr) reader->node->nsDef;
2769 return(1);
2770 }
2771 if (reader->node->properties != NULL) {
2772 reader->curnode = (xmlNodePtr) reader->node->properties;
2773 return(1);
2774 }
2775 return(0);
2776 }
2777
2778 /**
2779 * xmlTextReaderMoveToNextAttribute:
2780 * @reader: the xmlTextReaderPtr used
2781 *
2782 * Moves the position of the current instance to the next attribute
2783 * associated with the current node.
2784 *
2785 * Returns 1 in case of success, -1 in case of error, 0 if not found
2786 */
2787 int
xmlTextReaderMoveToNextAttribute(xmlTextReaderPtr reader)2788 xmlTextReaderMoveToNextAttribute(xmlTextReaderPtr reader) {
2789 if (reader == NULL)
2790 return(-1);
2791 if (reader->node == NULL)
2792 return(-1);
2793 if (reader->node->type != XML_ELEMENT_NODE)
2794 return(0);
2795 if (reader->curnode == NULL)
2796 return(xmlTextReaderMoveToFirstAttribute(reader));
2797
2798 if (reader->curnode->type == XML_NAMESPACE_DECL) {
2799 xmlNsPtr ns = (xmlNsPtr) reader->curnode;
2800 if (ns->next != NULL) {
2801 reader->curnode = (xmlNodePtr) ns->next;
2802 return(1);
2803 }
2804 if (reader->node->properties != NULL) {
2805 reader->curnode = (xmlNodePtr) reader->node->properties;
2806 return(1);
2807 }
2808 return(0);
2809 } else if ((reader->curnode->type == XML_ATTRIBUTE_NODE) &&
2810 (reader->curnode->next != NULL)) {
2811 reader->curnode = reader->curnode->next;
2812 return(1);
2813 }
2814 return(0);
2815 }
2816
2817 /**
2818 * xmlTextReaderMoveToElement:
2819 * @reader: the xmlTextReaderPtr used
2820 *
2821 * Moves the position of the current instance to the node that
2822 * contains the current Attribute node.
2823 *
2824 * Returns 1 in case of success, -1 in case of error, 0 if not moved
2825 */
2826 int
xmlTextReaderMoveToElement(xmlTextReaderPtr reader)2827 xmlTextReaderMoveToElement(xmlTextReaderPtr reader) {
2828 if (reader == NULL)
2829 return(-1);
2830 if (reader->node == NULL)
2831 return(-1);
2832 if (reader->node->type != XML_ELEMENT_NODE)
2833 return(0);
2834 if (reader->curnode != NULL) {
2835 reader->curnode = NULL;
2836 return(1);
2837 }
2838 return(0);
2839 }
2840
2841 /**
2842 * xmlTextReaderReadAttributeValue:
2843 * @reader: the xmlTextReaderPtr used
2844 *
2845 * Parses an attribute value into one or more Text and EntityReference nodes.
2846 *
2847 * Returns 1 in case of success, 0 if the reader was not positionned on an
2848 * ttribute node or all the attribute values have been read, or -1
2849 * in case of error.
2850 */
2851 int
xmlTextReaderReadAttributeValue(xmlTextReaderPtr reader)2852 xmlTextReaderReadAttributeValue(xmlTextReaderPtr reader) {
2853 if (reader == NULL)
2854 return(-1);
2855 if (reader->node == NULL)
2856 return(-1);
2857 if (reader->curnode == NULL)
2858 return(0);
2859 if (reader->curnode->type == XML_ATTRIBUTE_NODE) {
2860 if (reader->curnode->children == NULL)
2861 return(0);
2862 reader->curnode = reader->curnode->children;
2863 } else if (reader->curnode->type == XML_NAMESPACE_DECL) {
2864 xmlNsPtr ns = (xmlNsPtr) reader->curnode;
2865
2866 if (reader->faketext == NULL) {
2867 reader->faketext = xmlNewDocText(reader->node->doc,
2868 ns->href);
2869 } else {
2870 if ((reader->faketext->content != NULL) &&
2871 (reader->faketext->content !=
2872 (xmlChar *) &(reader->faketext->properties)))
2873 xmlFree(reader->faketext->content);
2874 reader->faketext->content = xmlStrdup(ns->href);
2875 }
2876 reader->curnode = reader->faketext;
2877 } else {
2878 if (reader->curnode->next == NULL)
2879 return(0);
2880 reader->curnode = reader->curnode->next;
2881 }
2882 return(1);
2883 }
2884
2885 /**
2886 * xmlTextReaderConstEncoding:
2887 * @reader: the xmlTextReaderPtr used
2888 *
2889 * Determine the encoding of the document being read.
2890 *
2891 * Returns a string containing the encoding of the document or NULL in
2892 * case of error. The string is deallocated with the reader.
2893 */
2894 const xmlChar *
xmlTextReaderConstEncoding(xmlTextReaderPtr reader)2895 xmlTextReaderConstEncoding(xmlTextReaderPtr reader) {
2896 xmlDocPtr doc = NULL;
2897 if (reader == NULL)
2898 return(NULL);
2899 if (reader->doc != NULL)
2900 doc = reader->doc;
2901 else if (reader->ctxt != NULL)
2902 doc = reader->ctxt->myDoc;
2903 if (doc == NULL)
2904 return(NULL);
2905
2906 if (doc->encoding == NULL)
2907 return(NULL);
2908 else
2909 return(CONSTSTR(doc->encoding));
2910 }
2911
2912
2913 /************************************************************************
2914 * *
2915 * Acces API to the current node *
2916 * *
2917 ************************************************************************/
2918 /**
2919 * xmlTextReaderAttributeCount:
2920 * @reader: the xmlTextReaderPtr used
2921 *
2922 * Provides the number of attributes of the current node
2923 *
2924 * Returns 0 i no attributes, -1 in case of error or the attribute count
2925 */
2926 int
xmlTextReaderAttributeCount(xmlTextReaderPtr reader)2927 xmlTextReaderAttributeCount(xmlTextReaderPtr reader) {
2928 int ret;
2929 xmlAttrPtr attr;
2930 xmlNsPtr ns;
2931 xmlNodePtr node;
2932
2933 if (reader == NULL)
2934 return(-1);
2935 if (reader->node == NULL)
2936 return(0);
2937
2938 if (reader->curnode != NULL)
2939 node = reader->curnode;
2940 else
2941 node = reader->node;
2942
2943 if (node->type != XML_ELEMENT_NODE)
2944 return(0);
2945 if ((reader->state == XML_TEXTREADER_END) ||
2946 (reader->state == XML_TEXTREADER_BACKTRACK))
2947 return(0);
2948 ret = 0;
2949 attr = node->properties;
2950 while (attr != NULL) {
2951 ret++;
2952 attr = attr->next;
2953 }
2954 ns = node->nsDef;
2955 while (ns != NULL) {
2956 ret++;
2957 ns = ns->next;
2958 }
2959 return(ret);
2960 }
2961
2962 /**
2963 * xmlTextReaderNodeType:
2964 * @reader: the xmlTextReaderPtr used
2965 *
2966 * Get the node type of the current node
2967 * Reference:
2968 * http://www.gnu.org/software/dotgnu/pnetlib-doc/System/Xml/XmlNodeType.html
2969 *
2970 * Returns the xmlNodeType of the current node or -1 in case of error
2971 */
2972 int
xmlTextReaderNodeType(xmlTextReaderPtr reader)2973 xmlTextReaderNodeType(xmlTextReaderPtr reader) {
2974 xmlNodePtr node;
2975
2976 if (reader == NULL)
2977 return(-1);
2978 if (reader->node == NULL)
2979 return(XML_READER_TYPE_NONE);
2980 if (reader->curnode != NULL)
2981 node = reader->curnode;
2982 else
2983 node = reader->node;
2984 switch (node->type) {
2985 case XML_ELEMENT_NODE:
2986 if ((reader->state == XML_TEXTREADER_END) ||
2987 (reader->state == XML_TEXTREADER_BACKTRACK))
2988 return(XML_READER_TYPE_END_ELEMENT);
2989 return(XML_READER_TYPE_ELEMENT);
2990 case XML_NAMESPACE_DECL:
2991 case XML_ATTRIBUTE_NODE:
2992 return(XML_READER_TYPE_ATTRIBUTE);
2993 case XML_TEXT_NODE:
2994 if (xmlIsBlankNode(reader->node)) {
2995 if (xmlNodeGetSpacePreserve(reader->node))
2996 return(XML_READER_TYPE_SIGNIFICANT_WHITESPACE);
2997 else
2998 return(XML_READER_TYPE_WHITESPACE);
2999 } else {
3000 return(XML_READER_TYPE_TEXT);
3001 }
3002 case XML_CDATA_SECTION_NODE:
3003 return(XML_READER_TYPE_CDATA);
3004 case XML_ENTITY_REF_NODE:
3005 return(XML_READER_TYPE_ENTITY_REFERENCE);
3006 case XML_ENTITY_NODE:
3007 return(XML_READER_TYPE_ENTITY);
3008 case XML_PI_NODE:
3009 return(XML_READER_TYPE_PROCESSING_INSTRUCTION);
3010 case XML_COMMENT_NODE:
3011 return(XML_READER_TYPE_COMMENT);
3012 case XML_DOCUMENT_NODE:
3013 case XML_HTML_DOCUMENT_NODE:
3014 #ifdef LIBXML_DOCB_ENABLED
3015 case XML_DOCB_DOCUMENT_NODE:
3016 #endif
3017 return(XML_READER_TYPE_DOCUMENT);
3018 case XML_DOCUMENT_FRAG_NODE:
3019 return(XML_READER_TYPE_DOCUMENT_FRAGMENT);
3020 case XML_NOTATION_NODE:
3021 return(XML_READER_TYPE_NOTATION);
3022 case XML_DOCUMENT_TYPE_NODE:
3023 case XML_DTD_NODE:
3024 return(XML_READER_TYPE_DOCUMENT_TYPE);
3025
3026 case XML_ELEMENT_DECL:
3027 case XML_ATTRIBUTE_DECL:
3028 case XML_ENTITY_DECL:
3029 case XML_XINCLUDE_START:
3030 case XML_XINCLUDE_END:
3031 return(XML_READER_TYPE_NONE);
3032 }
3033 return(-1);
3034 }
3035
3036 /**
3037 * xmlTextReaderIsEmptyElement:
3038 * @reader: the xmlTextReaderPtr used
3039 *
3040 * Check if the current node is empty
3041 *
3042 * Returns 1 if empty, 0 if not and -1 in case of error
3043 */
3044 int
xmlTextReaderIsEmptyElement(xmlTextReaderPtr reader)3045 xmlTextReaderIsEmptyElement(xmlTextReaderPtr reader) {
3046 if ((reader == NULL) || (reader->node == NULL))
3047 return(-1);
3048 if (reader->node->type != XML_ELEMENT_NODE)
3049 return(0);
3050 if (reader->curnode != NULL)
3051 return(0);
3052 if (reader->node->children != NULL)
3053 return(0);
3054 if (reader->state == XML_TEXTREADER_END)
3055 return(0);
3056 if (reader->doc != NULL)
3057 return(1);
3058 #ifdef LIBXML_XINCLUDE_ENABLED
3059 if (reader->in_xinclude > 0)
3060 return(1);
3061 #endif
3062 return((reader->node->extra & NODE_IS_EMPTY) != 0);
3063 }
3064
3065 /**
3066 * xmlTextReaderLocalName:
3067 * @reader: the xmlTextReaderPtr used
3068 *
3069 * The local name of the node.
3070 *
3071 * Returns the local name or NULL if not available,
3072 * if non NULL it need to be freed by the caller.
3073 */
3074 xmlChar *
xmlTextReaderLocalName(xmlTextReaderPtr reader)3075 xmlTextReaderLocalName(xmlTextReaderPtr reader) {
3076 xmlNodePtr node;
3077 if ((reader == NULL) || (reader->node == NULL))
3078 return(NULL);
3079 if (reader->curnode != NULL)
3080 node = reader->curnode;
3081 else
3082 node = reader->node;
3083 if (node->type == XML_NAMESPACE_DECL) {
3084 xmlNsPtr ns = (xmlNsPtr) node;
3085 if (ns->prefix == NULL)
3086 return(xmlStrdup(BAD_CAST "xmlns"));
3087 else
3088 return(xmlStrdup(ns->prefix));
3089 }
3090 if ((node->type != XML_ELEMENT_NODE) &&
3091 (node->type != XML_ATTRIBUTE_NODE))
3092 return(xmlTextReaderName(reader));
3093 return(xmlStrdup(node->name));
3094 }
3095
3096 /**
3097 * xmlTextReaderConstLocalName:
3098 * @reader: the xmlTextReaderPtr used
3099 *
3100 * The local name of the node.
3101 *
3102 * Returns the local name or NULL if not available, the
3103 * string will be deallocated with the reader.
3104 */
3105 const xmlChar *
xmlTextReaderConstLocalName(xmlTextReaderPtr reader)3106 xmlTextReaderConstLocalName(xmlTextReaderPtr reader) {
3107 xmlNodePtr node;
3108 if ((reader == NULL) || (reader->node == NULL))
3109 return(NULL);
3110 if (reader->curnode != NULL)
3111 node = reader->curnode;
3112 else
3113 node = reader->node;
3114 if (node->type == XML_NAMESPACE_DECL) {
3115 xmlNsPtr ns = (xmlNsPtr) node;
3116 if (ns->prefix == NULL)
3117 return(CONSTSTR(BAD_CAST "xmlns"));
3118 else
3119 return(ns->prefix);
3120 }
3121 if ((node->type != XML_ELEMENT_NODE) &&
3122 (node->type != XML_ATTRIBUTE_NODE))
3123 return(xmlTextReaderConstName(reader));
3124 return(node->name);
3125 }
3126
3127 /**
3128 * xmlTextReaderName:
3129 * @reader: the xmlTextReaderPtr used
3130 *
3131 * The qualified name of the node, equal to Prefix :LocalName.
3132 *
3133 * Returns the local name or NULL if not available,
3134 * if non NULL it need to be freed by the caller.
3135 */
3136 xmlChar *
xmlTextReaderName(xmlTextReaderPtr reader)3137 xmlTextReaderName(xmlTextReaderPtr reader) {
3138 xmlNodePtr node;
3139 xmlChar *ret;
3140
3141 if ((reader == NULL) || (reader->node == NULL))
3142 return(NULL);
3143 if (reader->curnode != NULL)
3144 node = reader->curnode;
3145 else
3146 node = reader->node;
3147 switch (node->type) {
3148 case XML_ELEMENT_NODE:
3149 case XML_ATTRIBUTE_NODE:
3150 if ((node->ns == NULL) ||
3151 (node->ns->prefix == NULL))
3152 return(xmlStrdup(node->name));
3153
3154 ret = xmlStrdup(node->ns->prefix);
3155 ret = xmlStrcat(ret, BAD_CAST ":");
3156 ret = xmlStrcat(ret, node->name);
3157 return(ret);
3158 case XML_TEXT_NODE:
3159 return(xmlStrdup(BAD_CAST "#text"));
3160 case XML_CDATA_SECTION_NODE:
3161 return(xmlStrdup(BAD_CAST "#cdata-section"));
3162 case XML_ENTITY_NODE:
3163 case XML_ENTITY_REF_NODE:
3164 return(xmlStrdup(node->name));
3165 case XML_PI_NODE:
3166 return(xmlStrdup(node->name));
3167 case XML_COMMENT_NODE:
3168 return(xmlStrdup(BAD_CAST "#comment"));
3169 case XML_DOCUMENT_NODE:
3170 case XML_HTML_DOCUMENT_NODE:
3171 #ifdef LIBXML_DOCB_ENABLED
3172 case XML_DOCB_DOCUMENT_NODE:
3173 #endif
3174 return(xmlStrdup(BAD_CAST "#document"));
3175 case XML_DOCUMENT_FRAG_NODE:
3176 return(xmlStrdup(BAD_CAST "#document-fragment"));
3177 case XML_NOTATION_NODE:
3178 return(xmlStrdup(node->name));
3179 case XML_DOCUMENT_TYPE_NODE:
3180 case XML_DTD_NODE:
3181 return(xmlStrdup(node->name));
3182 case XML_NAMESPACE_DECL: {
3183 xmlNsPtr ns = (xmlNsPtr) node;
3184
3185 ret = xmlStrdup(BAD_CAST "xmlns");
3186 if (ns->prefix == NULL)
3187 return(ret);
3188 ret = xmlStrcat(ret, BAD_CAST ":");
3189 ret = xmlStrcat(ret, ns->prefix);
3190 return(ret);
3191 }
3192
3193 case XML_ELEMENT_DECL:
3194 case XML_ATTRIBUTE_DECL:
3195 case XML_ENTITY_DECL:
3196 case XML_XINCLUDE_START:
3197 case XML_XINCLUDE_END:
3198 return(NULL);
3199 }
3200 return(NULL);
3201 }
3202
3203 /**
3204 * xmlTextReaderConstName:
3205 * @reader: the xmlTextReaderPtr used
3206 *
3207 * The qualified name of the node, equal to Prefix :LocalName.
3208 *
3209 * Returns the local name or NULL if not available, the string is
3210 * deallocated with the reader.
3211 */
3212 const xmlChar *
xmlTextReaderConstName(xmlTextReaderPtr reader)3213 xmlTextReaderConstName(xmlTextReaderPtr reader) {
3214 xmlNodePtr node;
3215
3216 if ((reader == NULL) || (reader->node == NULL))
3217 return(NULL);
3218 if (reader->curnode != NULL)
3219 node = reader->curnode;
3220 else
3221 node = reader->node;
3222 switch (node->type) {
3223 case XML_ELEMENT_NODE:
3224 case XML_ATTRIBUTE_NODE:
3225 if ((node->ns == NULL) ||
3226 (node->ns->prefix == NULL))
3227 return(node->name);
3228 return(CONSTQSTR(node->ns->prefix, node->name));
3229 case XML_TEXT_NODE:
3230 return(CONSTSTR(BAD_CAST "#text"));
3231 case XML_CDATA_SECTION_NODE:
3232 return(CONSTSTR(BAD_CAST "#cdata-section"));
3233 case XML_ENTITY_NODE:
3234 case XML_ENTITY_REF_NODE:
3235 return(CONSTSTR(node->name));
3236 case XML_PI_NODE:
3237 return(CONSTSTR(node->name));
3238 case XML_COMMENT_NODE:
3239 return(CONSTSTR(BAD_CAST "#comment"));
3240 case XML_DOCUMENT_NODE:
3241 case XML_HTML_DOCUMENT_NODE:
3242 #ifdef LIBXML_DOCB_ENABLED
3243 case XML_DOCB_DOCUMENT_NODE:
3244 #endif
3245 return(CONSTSTR(BAD_CAST "#document"));
3246 case XML_DOCUMENT_FRAG_NODE:
3247 return(CONSTSTR(BAD_CAST "#document-fragment"));
3248 case XML_NOTATION_NODE:
3249 return(CONSTSTR(node->name));
3250 case XML_DOCUMENT_TYPE_NODE:
3251 case XML_DTD_NODE:
3252 return(CONSTSTR(node->name));
3253 case XML_NAMESPACE_DECL: {
3254 xmlNsPtr ns = (xmlNsPtr) node;
3255
3256 if (ns->prefix == NULL)
3257 return(CONSTSTR(BAD_CAST "xmlns"));
3258 return(CONSTQSTR(BAD_CAST "xmlns", ns->prefix));
3259 }
3260
3261 case XML_ELEMENT_DECL:
3262 case XML_ATTRIBUTE_DECL:
3263 case XML_ENTITY_DECL:
3264 case XML_XINCLUDE_START:
3265 case XML_XINCLUDE_END:
3266 return(NULL);
3267 }
3268 return(NULL);
3269 }
3270
3271 /**
3272 * xmlTextReaderPrefix:
3273 * @reader: the xmlTextReaderPtr used
3274 *
3275 * A shorthand reference to the namespace associated with the node.
3276 *
3277 * Returns the prefix or NULL if not available,
3278 * if non NULL it need to be freed by the caller.
3279 */
3280 xmlChar *
xmlTextReaderPrefix(xmlTextReaderPtr reader)3281 xmlTextReaderPrefix(xmlTextReaderPtr reader) {
3282 xmlNodePtr node;
3283 if ((reader == NULL) || (reader->node == NULL))
3284 return(NULL);
3285 if (reader->curnode != NULL)
3286 node = reader->curnode;
3287 else
3288 node = reader->node;
3289 if (node->type == XML_NAMESPACE_DECL) {
3290 xmlNsPtr ns = (xmlNsPtr) node;
3291 if (ns->prefix == NULL)
3292 return(NULL);
3293 return(xmlStrdup(BAD_CAST "xmlns"));
3294 }
3295 if ((node->type != XML_ELEMENT_NODE) &&
3296 (node->type != XML_ATTRIBUTE_NODE))
3297 return(NULL);
3298 if ((node->ns != NULL) && (node->ns->prefix != NULL))
3299 return(xmlStrdup(node->ns->prefix));
3300 return(NULL);
3301 }
3302
3303 /**
3304 * xmlTextReaderConstPrefix:
3305 * @reader: the xmlTextReaderPtr used
3306 *
3307 * A shorthand reference to the namespace associated with the node.
3308 *
3309 * Returns the prefix or NULL if not available, the string is deallocated
3310 * with the reader.
3311 */
3312 const xmlChar *
xmlTextReaderConstPrefix(xmlTextReaderPtr reader)3313 xmlTextReaderConstPrefix(xmlTextReaderPtr reader) {
3314 xmlNodePtr node;
3315 if ((reader == NULL) || (reader->node == NULL))
3316 return(NULL);
3317 if (reader->curnode != NULL)
3318 node = reader->curnode;
3319 else
3320 node = reader->node;
3321 if (node->type == XML_NAMESPACE_DECL) {
3322 xmlNsPtr ns = (xmlNsPtr) node;
3323 if (ns->prefix == NULL)
3324 return(NULL);
3325 return(CONSTSTR(BAD_CAST "xmlns"));
3326 }
3327 if ((node->type != XML_ELEMENT_NODE) &&
3328 (node->type != XML_ATTRIBUTE_NODE))
3329 return(NULL);
3330 if ((node->ns != NULL) && (node->ns->prefix != NULL))
3331 return(CONSTSTR(node->ns->prefix));
3332 return(NULL);
3333 }
3334
3335 /**
3336 * xmlTextReaderNamespaceUri:
3337 * @reader: the xmlTextReaderPtr used
3338 *
3339 * The URI defining the namespace associated with the node.
3340 *
3341 * Returns the namespace URI or NULL if not available,
3342 * if non NULL it need to be freed by the caller.
3343 */
3344 xmlChar *
xmlTextReaderNamespaceUri(xmlTextReaderPtr reader)3345 xmlTextReaderNamespaceUri(xmlTextReaderPtr reader) {
3346 xmlNodePtr node;
3347 if ((reader == NULL) || (reader->node == NULL))
3348 return(NULL);
3349 if (reader->curnode != NULL)
3350 node = reader->curnode;
3351 else
3352 node = reader->node;
3353 if (node->type == XML_NAMESPACE_DECL)
3354 return(xmlStrdup(BAD_CAST "http://www.w3.org/2000/xmlns/"));
3355 if ((node->type != XML_ELEMENT_NODE) &&
3356 (node->type != XML_ATTRIBUTE_NODE))
3357 return(NULL);
3358 if (node->ns != NULL)
3359 return(xmlStrdup(node->ns->href));
3360 return(NULL);
3361 }
3362
3363 /**
3364 * xmlTextReaderConstNamespaceUri:
3365 * @reader: the xmlTextReaderPtr used
3366 *
3367 * The URI defining the namespace associated with the node.
3368 *
3369 * Returns the namespace URI or NULL if not available, the string
3370 * will be deallocated with the reader
3371 */
3372 const xmlChar *
xmlTextReaderConstNamespaceUri(xmlTextReaderPtr reader)3373 xmlTextReaderConstNamespaceUri(xmlTextReaderPtr reader) {
3374 xmlNodePtr node;
3375 if ((reader == NULL) || (reader->node == NULL))
3376 return(NULL);
3377 if (reader->curnode != NULL)
3378 node = reader->curnode;
3379 else
3380 node = reader->node;
3381 if (node->type == XML_NAMESPACE_DECL)
3382 return(CONSTSTR(BAD_CAST "http://www.w3.org/2000/xmlns/"));
3383 if ((node->type != XML_ELEMENT_NODE) &&
3384 (node->type != XML_ATTRIBUTE_NODE))
3385 return(NULL);
3386 if (node->ns != NULL)
3387 return(CONSTSTR(node->ns->href));
3388 return(NULL);
3389 }
3390
3391 /**
3392 * xmlTextReaderBaseUri:
3393 * @reader: the xmlTextReaderPtr used
3394 *
3395 * The base URI of the node.
3396 *
3397 * Returns the base URI or NULL if not available,
3398 * if non NULL it need to be freed by the caller.
3399 */
3400 xmlChar *
xmlTextReaderBaseUri(xmlTextReaderPtr reader)3401 xmlTextReaderBaseUri(xmlTextReaderPtr reader) {
3402 if ((reader == NULL) || (reader->node == NULL))
3403 return(NULL);
3404 return(xmlNodeGetBase(NULL, reader->node));
3405 }
3406
3407 /**
3408 * xmlTextReaderConstBaseUri:
3409 * @reader: the xmlTextReaderPtr used
3410 *
3411 * The base URI of the node.
3412 *
3413 * Returns the base URI or NULL if not available, the string
3414 * will be deallocated with the reader
3415 */
3416 const xmlChar *
xmlTextReaderConstBaseUri(xmlTextReaderPtr reader)3417 xmlTextReaderConstBaseUri(xmlTextReaderPtr reader) {
3418 xmlChar *tmp;
3419 const xmlChar *ret;
3420
3421 if ((reader == NULL) || (reader->node == NULL))
3422 return(NULL);
3423 tmp = xmlNodeGetBase(NULL, reader->node);
3424 if (tmp == NULL)
3425 return(NULL);
3426 ret = CONSTSTR(tmp);
3427 xmlFree(tmp);
3428 return(ret);
3429 }
3430
3431 /**
3432 * xmlTextReaderDepth:
3433 * @reader: the xmlTextReaderPtr used
3434 *
3435 * The depth of the node in the tree.
3436 *
3437 * Returns the depth or -1 in case of error
3438 */
3439 int
xmlTextReaderDepth(xmlTextReaderPtr reader)3440 xmlTextReaderDepth(xmlTextReaderPtr reader) {
3441 if (reader == NULL)
3442 return(-1);
3443 if (reader->node == NULL)
3444 return(0);
3445
3446 if (reader->curnode != NULL) {
3447 if ((reader->curnode->type == XML_ATTRIBUTE_NODE) ||
3448 (reader->curnode->type == XML_NAMESPACE_DECL))
3449 return(reader->depth + 1);
3450 return(reader->depth + 2);
3451 }
3452 return(reader->depth);
3453 }
3454
3455 /**
3456 * xmlTextReaderHasAttributes:
3457 * @reader: the xmlTextReaderPtr used
3458 *
3459 * Whether the node has attributes.
3460 *
3461 * Returns 1 if true, 0 if false, and -1 in case or error
3462 */
3463 int
xmlTextReaderHasAttributes(xmlTextReaderPtr reader)3464 xmlTextReaderHasAttributes(xmlTextReaderPtr reader) {
3465 xmlNodePtr node;
3466 if (reader == NULL)
3467 return(-1);
3468 if (reader->node == NULL)
3469 return(0);
3470 if (reader->curnode != NULL)
3471 node = reader->curnode;
3472 else
3473 node = reader->node;
3474
3475 if ((node->type == XML_ELEMENT_NODE) &&
3476 ((node->properties != NULL) || (node->nsDef != NULL)))
3477 return(1);
3478 /* TODO: handle the xmlDecl */
3479 return(0);
3480 }
3481
3482 /**
3483 * xmlTextReaderHasValue:
3484 * @reader: the xmlTextReaderPtr used
3485 *
3486 * Whether the node can have a text value.
3487 *
3488 * Returns 1 if true, 0 if false, and -1 in case or error
3489 */
3490 int
xmlTextReaderHasValue(xmlTextReaderPtr reader)3491 xmlTextReaderHasValue(xmlTextReaderPtr reader) {
3492 xmlNodePtr node;
3493 if (reader == NULL)
3494 return(-1);
3495 if (reader->node == NULL)
3496 return(0);
3497 if (reader->curnode != NULL)
3498 node = reader->curnode;
3499 else
3500 node = reader->node;
3501
3502 switch (node->type) {
3503 case XML_ATTRIBUTE_NODE:
3504 case XML_TEXT_NODE:
3505 case XML_CDATA_SECTION_NODE:
3506 case XML_PI_NODE:
3507 case XML_COMMENT_NODE:
3508 case XML_NAMESPACE_DECL:
3509 return(1);
3510 default:
3511 break;
3512 }
3513 return(0);
3514 }
3515
3516 /**
3517 * xmlTextReaderValue:
3518 * @reader: the xmlTextReaderPtr used
3519 *
3520 * Provides the text value of the node if present
3521 *
3522 * Returns the string or NULL if not available. The result must be deallocated
3523 * with xmlFree()
3524 */
3525 xmlChar *
xmlTextReaderValue(xmlTextReaderPtr reader)3526 xmlTextReaderValue(xmlTextReaderPtr reader) {
3527 xmlNodePtr node;
3528 if (reader == NULL)
3529 return(NULL);
3530 if (reader->node == NULL)
3531 return(NULL);
3532 if (reader->curnode != NULL)
3533 node = reader->curnode;
3534 else
3535 node = reader->node;
3536
3537 switch (node->type) {
3538 case XML_NAMESPACE_DECL:
3539 return(xmlStrdup(((xmlNsPtr) node)->href));
3540 case XML_ATTRIBUTE_NODE:{
3541 xmlAttrPtr attr = (xmlAttrPtr) node;
3542
3543 if (attr->parent != NULL)
3544 return (xmlNodeListGetString
3545 (attr->parent->doc, attr->children, 1));
3546 else
3547 return (xmlNodeListGetString(NULL, attr->children, 1));
3548 break;
3549 }
3550 case XML_TEXT_NODE:
3551 case XML_CDATA_SECTION_NODE:
3552 case XML_PI_NODE:
3553 case XML_COMMENT_NODE:
3554 if (node->content != NULL)
3555 return (xmlStrdup(node->content));
3556 default:
3557 break;
3558 }
3559 return(NULL);
3560 }
3561
3562 /**
3563 * xmlTextReaderConstValue:
3564 * @reader: the xmlTextReaderPtr used
3565 *
3566 * Provides the text value of the node if present
3567 *
3568 * Returns the string or NULL if not available. The result will be
3569 * deallocated on the next Read() operation.
3570 */
3571 const xmlChar *
xmlTextReaderConstValue(xmlTextReaderPtr reader)3572 xmlTextReaderConstValue(xmlTextReaderPtr reader) {
3573 xmlNodePtr node;
3574 if (reader == NULL)
3575 return(NULL);
3576 if (reader->node == NULL)
3577 return(NULL);
3578 if (reader->curnode != NULL)
3579 node = reader->curnode;
3580 else
3581 node = reader->node;
3582
3583 switch (node->type) {
3584 case XML_NAMESPACE_DECL:
3585 return(((xmlNsPtr) node)->href);
3586 case XML_ATTRIBUTE_NODE:{
3587 xmlAttrPtr attr = (xmlAttrPtr) node;
3588
3589 if ((attr->children != NULL) &&
3590 (attr->children->type == XML_TEXT_NODE) &&
3591 (attr->children->next == NULL))
3592 return(attr->children->content);
3593 else {
3594 if (reader->buffer == NULL)
3595 reader->buffer = xmlBufferCreateSize(100);
3596 if (reader->buffer == NULL) {
3597 xmlGenericError(xmlGenericErrorContext,
3598 "xmlTextReaderSetup : malloc failed\n");
3599 return (NULL);
3600 }
3601 reader->buffer->use = 0;
3602 xmlNodeBufGetContent(reader->buffer, node);
3603 return(reader->buffer->content);
3604 }
3605 break;
3606 }
3607 case XML_TEXT_NODE:
3608 case XML_CDATA_SECTION_NODE:
3609 case XML_PI_NODE:
3610 case XML_COMMENT_NODE:
3611 return(node->content);
3612 default:
3613 break;
3614 }
3615 return(NULL);
3616 }
3617
3618 /**
3619 * xmlTextReaderIsDefault:
3620 * @reader: the xmlTextReaderPtr used
3621 *
3622 * Whether an Attribute node was generated from the default value
3623 * defined in the DTD or schema.
3624 *
3625 * Returns 0 if not defaulted, 1 if defaulted, and -1 in case of error
3626 */
3627 int
xmlTextReaderIsDefault(xmlTextReaderPtr reader)3628 xmlTextReaderIsDefault(xmlTextReaderPtr reader) {
3629 if (reader == NULL)
3630 return(-1);
3631 return(0);
3632 }
3633
3634 /**
3635 * xmlTextReaderQuoteChar:
3636 * @reader: the xmlTextReaderPtr used
3637 *
3638 * The quotation mark character used to enclose the value of an attribute.
3639 *
3640 * Returns " or ' and -1 in case of error
3641 */
3642 int
xmlTextReaderQuoteChar(xmlTextReaderPtr reader)3643 xmlTextReaderQuoteChar(xmlTextReaderPtr reader) {
3644 if (reader == NULL)
3645 return(-1);
3646 /* TODO maybe lookup the attribute value for " first */
3647 return((int) '"');
3648 }
3649
3650 /**
3651 * xmlTextReaderXmlLang:
3652 * @reader: the xmlTextReaderPtr used
3653 *
3654 * The xml:lang scope within which the node resides.
3655 *
3656 * Returns the xml:lang value or NULL if none exists.,
3657 * if non NULL it need to be freed by the caller.
3658 */
3659 xmlChar *
xmlTextReaderXmlLang(xmlTextReaderPtr reader)3660 xmlTextReaderXmlLang(xmlTextReaderPtr reader) {
3661 if (reader == NULL)
3662 return(NULL);
3663 if (reader->node == NULL)
3664 return(NULL);
3665 return(xmlNodeGetLang(reader->node));
3666 }
3667
3668 /**
3669 * xmlTextReaderConstXmlLang:
3670 * @reader: the xmlTextReaderPtr used
3671 *
3672 * The xml:lang scope within which the node resides.
3673 *
3674 * Returns the xml:lang value or NULL if none exists.
3675 */
3676 const xmlChar *
xmlTextReaderConstXmlLang(xmlTextReaderPtr reader)3677 xmlTextReaderConstXmlLang(xmlTextReaderPtr reader) {
3678 xmlChar *tmp;
3679 const xmlChar *ret;
3680
3681 if (reader == NULL)
3682 return(NULL);
3683 if (reader->node == NULL)
3684 return(NULL);
3685 tmp = xmlNodeGetLang(reader->node);
3686 if (tmp == NULL)
3687 return(NULL);
3688 ret = CONSTSTR(tmp);
3689 xmlFree(tmp);
3690 return(ret);
3691 }
3692
3693 /**
3694 * xmlTextReaderConstString:
3695 * @reader: the xmlTextReaderPtr used
3696 * @str: the string to intern.
3697 *
3698 * Get an interned string from the reader, allows for example to
3699 * speedup string name comparisons
3700 *
3701 * Returns an interned copy of the string or NULL in case of error. The
3702 * string will be deallocated with the reader.
3703 */
3704 const xmlChar *
xmlTextReaderConstString(xmlTextReaderPtr reader,const xmlChar * str)3705 xmlTextReaderConstString(xmlTextReaderPtr reader, const xmlChar *str) {
3706 if (reader == NULL)
3707 return(NULL);
3708 return(CONSTSTR(str));
3709 }
3710
3711 /**
3712 * xmlTextReaderNormalization:
3713 * @reader: the xmlTextReaderPtr used
3714 *
3715 * The value indicating whether to normalize white space and attribute values.
3716 * Since attribute value and end of line normalizations are a MUST in the XML
3717 * specification only the value true is accepted. The broken bahaviour of
3718 * accepting out of range character entities like � is of course not
3719 * supported either.
3720 *
3721 * Returns 1 or -1 in case of error.
3722 */
3723 int
xmlTextReaderNormalization(xmlTextReaderPtr reader)3724 xmlTextReaderNormalization(xmlTextReaderPtr reader) {
3725 if (reader == NULL)
3726 return(-1);
3727 return(1);
3728 }
3729
3730 /************************************************************************
3731 * *
3732 * Extensions to the base APIs *
3733 * *
3734 ************************************************************************/
3735
3736 /**
3737 * xmlTextReaderSetParserProp:
3738 * @reader: the xmlTextReaderPtr used
3739 * @prop: the xmlParserProperties to set
3740 * @value: usually 0 or 1 to (de)activate it
3741 *
3742 * Change the parser processing behaviour by changing some of its internal
3743 * properties. Note that some properties can only be changed before any
3744 * read has been done.
3745 *
3746 * Returns 0 if the call was successful, or -1 in case of error
3747 */
3748 int
xmlTextReaderSetParserProp(xmlTextReaderPtr reader,int prop,int value)3749 xmlTextReaderSetParserProp(xmlTextReaderPtr reader, int prop, int value) {
3750 xmlParserProperties p = (xmlParserProperties) prop;
3751 xmlParserCtxtPtr ctxt;
3752
3753 if ((reader == NULL) || (reader->ctxt == NULL))
3754 return(-1);
3755 ctxt = reader->ctxt;
3756
3757 switch (p) {
3758 case XML_PARSER_LOADDTD:
3759 if (value != 0) {
3760 if (ctxt->loadsubset == 0) {
3761 if (reader->mode != XML_TEXTREADER_MODE_INITIAL)
3762 return(-1);
3763 ctxt->loadsubset = XML_DETECT_IDS;
3764 }
3765 } else {
3766 ctxt->loadsubset = 0;
3767 }
3768 return(0);
3769 case XML_PARSER_DEFAULTATTRS:
3770 if (value != 0) {
3771 ctxt->loadsubset |= XML_COMPLETE_ATTRS;
3772 } else {
3773 if (ctxt->loadsubset & XML_COMPLETE_ATTRS)
3774 ctxt->loadsubset -= XML_COMPLETE_ATTRS;
3775 }
3776 return(0);
3777 case XML_PARSER_VALIDATE:
3778 if (value != 0) {
3779 ctxt->validate = 1;
3780 reader->validate = XML_TEXTREADER_VALIDATE_DTD;
3781 } else {
3782 ctxt->validate = 0;
3783 }
3784 return(0);
3785 case XML_PARSER_SUBST_ENTITIES:
3786 if (value != 0) {
3787 ctxt->replaceEntities = 1;
3788 } else {
3789 ctxt->replaceEntities = 0;
3790 }
3791 return(0);
3792 }
3793 return(-1);
3794 }
3795
3796 /**
3797 * xmlTextReaderGetParserProp:
3798 * @reader: the xmlTextReaderPtr used
3799 * @prop: the xmlParserProperties to get
3800 *
3801 * Read the parser internal property.
3802 *
3803 * Returns the value, usually 0 or 1, or -1 in case of error.
3804 */
3805 int
xmlTextReaderGetParserProp(xmlTextReaderPtr reader,int prop)3806 xmlTextReaderGetParserProp(xmlTextReaderPtr reader, int prop) {
3807 xmlParserProperties p = (xmlParserProperties) prop;
3808 xmlParserCtxtPtr ctxt;
3809
3810 if ((reader == NULL) || (reader->ctxt == NULL))
3811 return(-1);
3812 ctxt = reader->ctxt;
3813
3814 switch (p) {
3815 case XML_PARSER_LOADDTD:
3816 if ((ctxt->loadsubset != 0) || (ctxt->validate != 0))
3817 return(1);
3818 return(0);
3819 case XML_PARSER_DEFAULTATTRS:
3820 if (ctxt->loadsubset & XML_COMPLETE_ATTRS)
3821 return(1);
3822 return(0);
3823 case XML_PARSER_VALIDATE:
3824 return(reader->validate);
3825 case XML_PARSER_SUBST_ENTITIES:
3826 return(ctxt->replaceEntities);
3827 }
3828 return(-1);
3829 }
3830
3831
3832 /**
3833 * xmlTextReaderGetParserLineNumber:
3834 * @reader: the user data (XML reader context)
3835 *
3836 * Provide the line number of the current parsing point.
3837 *
3838 * Returns an int or 0 if not available
3839 */
3840 int
xmlTextReaderGetParserLineNumber(xmlTextReaderPtr reader)3841 xmlTextReaderGetParserLineNumber(xmlTextReaderPtr reader)
3842 {
3843 if ((reader == NULL) || (reader->ctxt == NULL) ||
3844 (reader->ctxt->input == NULL)) {
3845 return (0);
3846 }
3847 return (reader->ctxt->input->line);
3848 }
3849
3850 /**
3851 * xmlTextReaderGetParserColumnNumber:
3852 * @reader: the user data (XML reader context)
3853 *
3854 * Provide the column number of the current parsing point.
3855 *
3856 * Returns an int or 0 if not available
3857 */
3858 int
xmlTextReaderGetParserColumnNumber(xmlTextReaderPtr reader)3859 xmlTextReaderGetParserColumnNumber(xmlTextReaderPtr reader)
3860 {
3861 if ((reader == NULL) || (reader->ctxt == NULL) ||
3862 (reader->ctxt->input == NULL)) {
3863 return (0);
3864 }
3865 return (reader->ctxt->input->col);
3866 }
3867
3868 /**
3869 * xmlTextReaderCurrentNode:
3870 * @reader: the xmlTextReaderPtr used
3871 *
3872 * Hacking interface allowing to get the xmlNodePtr correponding to the
3873 * current node being accessed by the xmlTextReader. This is dangerous
3874 * because the underlying node may be destroyed on the next Reads.
3875 *
3876 * Returns the xmlNodePtr or NULL in case of error.
3877 */
3878 xmlNodePtr
xmlTextReaderCurrentNode(xmlTextReaderPtr reader)3879 xmlTextReaderCurrentNode(xmlTextReaderPtr reader) {
3880 if (reader == NULL)
3881 return(NULL);
3882
3883 if (reader->curnode != NULL)
3884 return(reader->curnode);
3885 return(reader->node);
3886 }
3887
3888 /**
3889 * xmlTextReaderPreserve:
3890 * @reader: the xmlTextReaderPtr used
3891 *
3892 * This tells the XML Reader to preserve the current node.
3893 * The caller must also use xmlTextReaderCurrentDoc() to
3894 * keep an handle on the resulting document once parsing has finished
3895 *
3896 * Returns the xmlNodePtr or NULL in case of error.
3897 */
3898 xmlNodePtr
xmlTextReaderPreserve(xmlTextReaderPtr reader)3899 xmlTextReaderPreserve(xmlTextReaderPtr reader) {
3900 xmlNodePtr cur, parent;
3901
3902 if (reader == NULL)
3903 return(NULL);
3904
3905 if (reader->curnode != NULL)
3906 cur = reader->curnode;
3907 else
3908 cur = reader->node;
3909 if (cur == NULL)
3910 return(NULL);
3911
3912 if ((cur->type != XML_DOCUMENT_NODE) && (cur->type != XML_DTD_NODE)) {
3913 cur->extra |= NODE_IS_PRESERVED;
3914 cur->extra |= NODE_IS_SPRESERVED;
3915 }
3916 reader->preserves++;
3917
3918 parent = cur->parent;;
3919 while (parent != NULL) {
3920 if (parent->type == XML_ELEMENT_NODE)
3921 parent->extra |= NODE_IS_PRESERVED;
3922 parent = parent->parent;
3923 }
3924 return(cur);
3925 }
3926
3927 #ifdef LIBXML_PATTERN_ENABLED
3928 /**
3929 * xmlTextReaderPreservePattern:
3930 * @reader: the xmlTextReaderPtr used
3931 * @pattern: an XPath subset pattern
3932 * @namespaces: the prefix definitions, array of [URI, prefix] or NULL
3933 *
3934 * This tells the XML Reader to preserve all nodes matched by the
3935 * pattern. The caller must also use xmlTextReaderCurrentDoc() to
3936 * keep an handle on the resulting document once parsing has finished
3937 *
3938 * Returns a positive number in case of success and -1 in case of error
3939 */
3940 int
xmlTextReaderPreservePattern(xmlTextReaderPtr reader,const xmlChar * pattern,const xmlChar ** namespaces)3941 xmlTextReaderPreservePattern(xmlTextReaderPtr reader, const xmlChar *pattern,
3942 const xmlChar **namespaces)
3943 {
3944 xmlPatternPtr comp;
3945
3946 if ((reader == NULL) || (pattern == NULL))
3947 return(-1);
3948
3949 comp = xmlPatterncompile(pattern, reader->dict, 0, namespaces);
3950 if (comp == NULL)
3951 return(-1);
3952
3953 if (reader->patternMax <= 0) {
3954 reader->patternMax = 4;
3955 reader->patternTab = (xmlPatternPtr *) xmlMalloc(reader->patternMax *
3956 sizeof(reader->patternTab[0]));
3957 if (reader->patternTab == NULL) {
3958 xmlGenericError(xmlGenericErrorContext, "xmlMalloc failed !\n");
3959 return (-1);
3960 }
3961 }
3962 if (reader->patternNr >= reader->patternMax) {
3963 xmlPatternPtr *tmp;
3964 reader->patternMax *= 2;
3965 tmp = (xmlPatternPtr *) xmlRealloc(reader->patternTab,
3966 reader->patternMax *
3967 sizeof(reader->patternTab[0]));
3968 if (tmp == NULL) {
3969 xmlGenericError(xmlGenericErrorContext, "xmlRealloc failed !\n");
3970 reader->patternMax /= 2;
3971 return (-1);
3972 }
3973 reader->patternTab = tmp;
3974 }
3975 reader->patternTab[reader->patternNr] = comp;
3976 return(reader->patternNr++);
3977 }
3978 #endif
3979
3980 /**
3981 * xmlTextReaderCurrentDoc:
3982 * @reader: the xmlTextReaderPtr used
3983 *
3984 * Hacking interface allowing to get the xmlDocPtr correponding to the
3985 * current document being accessed by the xmlTextReader.
3986 * NOTE: as a result of this call, the reader will not destroy the
3987 * associated XML document and calling xmlFreeDoc() on the result
3988 * is needed once the reader parsing has finished.
3989 *
3990 * Returns the xmlDocPtr or NULL in case of error.
3991 */
3992 xmlDocPtr
xmlTextReaderCurrentDoc(xmlTextReaderPtr reader)3993 xmlTextReaderCurrentDoc(xmlTextReaderPtr reader) {
3994 if (reader == NULL)
3995 return(NULL);
3996 if (reader->doc != NULL)
3997 return(reader->doc);
3998 if ((reader->ctxt == NULL) || (reader->ctxt->myDoc == NULL))
3999 return(NULL);
4000
4001 reader->preserve = 1;
4002 return(reader->ctxt->myDoc);
4003 }
4004
4005 #ifdef LIBXML_SCHEMAS_ENABLED
4006 static char *xmlTextReaderBuildMessage(const char *msg, va_list ap);
4007
4008 static void XMLCDECL
4009 xmlTextReaderValidityError(void *ctxt, const char *msg, ...);
4010
4011 static void XMLCDECL
4012 xmlTextReaderValidityWarning(void *ctxt, const char *msg, ...);
4013
4014 static void XMLCDECL
xmlTextReaderValidityErrorRelay(void * ctx,const char * msg,...)4015 xmlTextReaderValidityErrorRelay(void *ctx, const char *msg, ...)
4016 {
4017 xmlTextReaderPtr reader = (xmlTextReaderPtr) ctx;
4018
4019 char *str;
4020
4021 va_list ap;
4022
4023 va_start(ap, msg);
4024 str = xmlTextReaderBuildMessage(msg, ap);
4025 if (!reader->errorFunc) {
4026 xmlTextReaderValidityError(ctx, "%s", str);
4027 } else {
4028 reader->errorFunc(reader->errorFuncArg, str,
4029 XML_PARSER_SEVERITY_VALIDITY_ERROR,
4030 NULL /* locator */ );
4031 }
4032 if (str != NULL)
4033 xmlFree(str);
4034 va_end(ap);
4035 }
4036
4037 static void XMLCDECL
xmlTextReaderValidityWarningRelay(void * ctx,const char * msg,...)4038 xmlTextReaderValidityWarningRelay(void *ctx, const char *msg, ...)
4039 {
4040 xmlTextReaderPtr reader = (xmlTextReaderPtr) ctx;
4041
4042 char *str;
4043
4044 va_list ap;
4045
4046 va_start(ap, msg);
4047 str = xmlTextReaderBuildMessage(msg, ap);
4048 if (!reader->errorFunc) {
4049 xmlTextReaderValidityWarning(ctx, "%s", str);
4050 } else {
4051 reader->errorFunc(reader->errorFuncArg, str,
4052 XML_PARSER_SEVERITY_VALIDITY_WARNING,
4053 NULL /* locator */ );
4054 }
4055 if (str != NULL)
4056 xmlFree(str);
4057 va_end(ap);
4058 }
4059
4060 static void
4061 xmlTextReaderStructuredError(void *ctxt, xmlErrorPtr error);
4062
4063 static void
xmlTextReaderValidityStructuredRelay(void * userData,xmlErrorPtr error)4064 xmlTextReaderValidityStructuredRelay(void *userData, xmlErrorPtr error)
4065 {
4066 xmlTextReaderPtr reader = (xmlTextReaderPtr) userData;
4067
4068 if (reader->sErrorFunc) {
4069 reader->sErrorFunc(reader->errorFuncArg, error);
4070 } else {
4071 xmlTextReaderStructuredError(reader, error);
4072 }
4073 }
4074 /**
4075 * xmlTextReaderRelaxNGSetSchema:
4076 * @reader: the xmlTextReaderPtr used
4077 * @schema: a precompiled RelaxNG schema
4078 *
4079 * Use RelaxNG to validate the document as it is processed.
4080 * Activation is only possible before the first Read().
4081 * if @schema is NULL, then RelaxNG validation is desactivated.
4082 @ The @schema should not be freed until the reader is deallocated
4083 * or its use has been deactivated.
4084 *
4085 * Returns 0 in case the RelaxNG validation could be (des)activated and
4086 * -1 in case of error.
4087 */
4088 int
xmlTextReaderRelaxNGSetSchema(xmlTextReaderPtr reader,xmlRelaxNGPtr schema)4089 xmlTextReaderRelaxNGSetSchema(xmlTextReaderPtr reader, xmlRelaxNGPtr schema) {
4090 if (reader == NULL)
4091 return(-1);
4092 if (schema == NULL) {
4093 if (reader->rngSchemas != NULL) {
4094 xmlRelaxNGFree(reader->rngSchemas);
4095 reader->rngSchemas = NULL;
4096 }
4097 if (reader->rngValidCtxt != NULL) {
4098 xmlRelaxNGFreeValidCtxt(reader->rngValidCtxt);
4099 reader->rngValidCtxt = NULL;
4100 }
4101 return(0);
4102 }
4103 if (reader->mode != XML_TEXTREADER_MODE_INITIAL)
4104 return(-1);
4105 if (reader->rngSchemas != NULL) {
4106 xmlRelaxNGFree(reader->rngSchemas);
4107 reader->rngSchemas = NULL;
4108 }
4109 if (reader->rngValidCtxt != NULL) {
4110 xmlRelaxNGFreeValidCtxt(reader->rngValidCtxt);
4111 reader->rngValidCtxt = NULL;
4112 }
4113 reader->rngValidCtxt = xmlRelaxNGNewValidCtxt(schema);
4114 if (reader->rngValidCtxt == NULL)
4115 return(-1);
4116 if (reader->errorFunc != NULL) {
4117 xmlRelaxNGSetValidErrors(reader->rngValidCtxt,
4118 xmlTextReaderValidityErrorRelay,
4119 xmlTextReaderValidityWarningRelay,
4120 reader);
4121 }
4122 if (reader->sErrorFunc != NULL) {
4123 xmlRelaxNGSetValidStructuredErrors(reader->rngValidCtxt,
4124 xmlTextReaderValidityStructuredRelay,
4125 reader);
4126 }
4127 reader->rngValidErrors = 0;
4128 reader->rngFullNode = NULL;
4129 reader->validate = XML_TEXTREADER_VALIDATE_RNG;
4130 return(0);
4131 }
4132
4133 /**
4134 * xmlTextReaderSetSchema:
4135 * @reader: the xmlTextReaderPtr used
4136 * @schema: a precompiled Schema schema
4137 *
4138 * Use XSD Schema to validate the document as it is processed.
4139 * Activation is only possible before the first Read().
4140 * if @schema is NULL, then Schema validation is desactivated.
4141 @ The @schema should not be freed until the reader is deallocated
4142 * or its use has been deactivated.
4143 *
4144 * Returns 0 in case the Schema validation could be (des)activated and
4145 * -1 in case of error.
4146 */
4147 int
xmlTextReaderSetSchema(xmlTextReaderPtr reader,xmlSchemaPtr schema)4148 xmlTextReaderSetSchema(xmlTextReaderPtr reader, xmlSchemaPtr schema) {
4149 if (reader == NULL)
4150 return(-1);
4151 if (schema == NULL) {
4152 if (reader->xsdPlug != NULL) {
4153 xmlSchemaSAXUnplug(reader->xsdPlug);
4154 reader->xsdPlug = NULL;
4155 }
4156 if (reader->xsdValidCtxt != NULL) {
4157 if (! reader->xsdPreserveCtxt)
4158 xmlSchemaFreeValidCtxt(reader->xsdValidCtxt);
4159 reader->xsdValidCtxt = NULL;
4160 }
4161 reader->xsdPreserveCtxt = 0;
4162 if (reader->xsdSchemas != NULL) {
4163 xmlSchemaFree(reader->xsdSchemas);
4164 reader->xsdSchemas = NULL;
4165 }
4166 return(0);
4167 }
4168 if (reader->mode != XML_TEXTREADER_MODE_INITIAL)
4169 return(-1);
4170 if (reader->xsdPlug != NULL) {
4171 xmlSchemaSAXUnplug(reader->xsdPlug);
4172 reader->xsdPlug = NULL;
4173 }
4174 if (reader->xsdValidCtxt != NULL) {
4175 if (! reader->xsdPreserveCtxt)
4176 xmlSchemaFreeValidCtxt(reader->xsdValidCtxt);
4177 reader->xsdValidCtxt = NULL;
4178 }
4179 reader->xsdPreserveCtxt = 0;
4180 if (reader->xsdSchemas != NULL) {
4181 xmlSchemaFree(reader->xsdSchemas);
4182 reader->xsdSchemas = NULL;
4183 }
4184 reader->xsdValidCtxt = xmlSchemaNewValidCtxt(schema);
4185 if (reader->xsdValidCtxt == NULL) {
4186 xmlSchemaFree(reader->xsdSchemas);
4187 reader->xsdSchemas = NULL;
4188 return(-1);
4189 }
4190 reader->xsdPlug = xmlSchemaSAXPlug(reader->xsdValidCtxt,
4191 &(reader->ctxt->sax),
4192 &(reader->ctxt->userData));
4193 if (reader->xsdPlug == NULL) {
4194 xmlSchemaFree(reader->xsdSchemas);
4195 reader->xsdSchemas = NULL;
4196 xmlSchemaFreeValidCtxt(reader->xsdValidCtxt);
4197 reader->xsdValidCtxt = NULL;
4198 return(-1);
4199 }
4200 if (reader->errorFunc != NULL) {
4201 xmlSchemaSetValidErrors(reader->xsdValidCtxt,
4202 xmlTextReaderValidityErrorRelay,
4203 xmlTextReaderValidityWarningRelay,
4204 reader);
4205 }
4206 if (reader->sErrorFunc != NULL) {
4207 xmlSchemaSetValidStructuredErrors(reader->xsdValidCtxt,
4208 xmlTextReaderValidityStructuredRelay,
4209 reader);
4210 }
4211 reader->xsdValidErrors = 0;
4212 reader->validate = XML_TEXTREADER_VALIDATE_XSD;
4213 return(0);
4214 }
4215
4216 /**
4217 * xmlTextReaderRelaxNGValidate:
4218 * @reader: the xmlTextReaderPtr used
4219 * @rng: the path to a RelaxNG schema or NULL
4220 *
4221 * Use RelaxNG to validate the document as it is processed.
4222 * Activation is only possible before the first Read().
4223 * if @rng is NULL, then RelaxNG validation is deactivated.
4224 *
4225 * Returns 0 in case the RelaxNG validation could be (de)activated and
4226 * -1 in case of error.
4227 */
4228 int
xmlTextReaderRelaxNGValidate(xmlTextReaderPtr reader,const char * rng)4229 xmlTextReaderRelaxNGValidate(xmlTextReaderPtr reader, const char *rng) {
4230 xmlRelaxNGParserCtxtPtr ctxt;
4231
4232 if (reader == NULL)
4233 return(-1);
4234
4235 if (rng == NULL) {
4236 if (reader->rngValidCtxt != NULL) {
4237 xmlRelaxNGFreeValidCtxt(reader->rngValidCtxt);
4238 reader->rngValidCtxt = NULL;
4239 }
4240 if (reader->rngSchemas != NULL) {
4241 xmlRelaxNGFree(reader->rngSchemas);
4242 reader->rngSchemas = NULL;
4243 }
4244 return(0);
4245 }
4246 if (reader->mode != XML_TEXTREADER_MODE_INITIAL)
4247 return(-1);
4248 if (reader->rngSchemas != NULL) {
4249 xmlRelaxNGFree(reader->rngSchemas);
4250 reader->rngSchemas = NULL;
4251 }
4252 if (reader->rngValidCtxt != NULL) {
4253 xmlRelaxNGFreeValidCtxt(reader->rngValidCtxt);
4254 reader->rngValidCtxt = NULL;
4255 }
4256 ctxt = xmlRelaxNGNewParserCtxt(rng);
4257 if (reader->errorFunc != NULL) {
4258 xmlRelaxNGSetParserErrors(ctxt,
4259 xmlTextReaderValidityErrorRelay,
4260 xmlTextReaderValidityWarningRelay,
4261 reader);
4262 }
4263 if (reader->sErrorFunc != NULL) {
4264 xmlRelaxNGSetValidStructuredErrors(reader->rngValidCtxt,
4265 xmlTextReaderValidityStructuredRelay,
4266 reader);
4267 }
4268 reader->rngSchemas = xmlRelaxNGParse(ctxt);
4269 xmlRelaxNGFreeParserCtxt(ctxt);
4270 if (reader->rngSchemas == NULL)
4271 return(-1);
4272 reader->rngValidCtxt = xmlRelaxNGNewValidCtxt(reader->rngSchemas);
4273 if (reader->rngValidCtxt == NULL) {
4274 xmlRelaxNGFree(reader->rngSchemas);
4275 reader->rngSchemas = NULL;
4276 return(-1);
4277 }
4278 if (reader->errorFunc != NULL) {
4279 xmlRelaxNGSetValidErrors(reader->rngValidCtxt,
4280 xmlTextReaderValidityErrorRelay,
4281 xmlTextReaderValidityWarningRelay,
4282 reader);
4283 }
4284 if (reader->sErrorFunc != NULL) {
4285 xmlRelaxNGSetValidStructuredErrors(reader->rngValidCtxt,
4286 xmlTextReaderValidityStructuredRelay,
4287 reader);
4288 }
4289 reader->rngValidErrors = 0;
4290 reader->rngFullNode = NULL;
4291 reader->validate = XML_TEXTREADER_VALIDATE_RNG;
4292 return(0);
4293 }
4294
4295 /**
4296 * xmlTextReaderSchemaValidateInternal:
4297 * @reader: the xmlTextReaderPtr used
4298 * @xsd: the path to a W3C XSD schema or NULL
4299 * @ctxt: the XML Schema validation context or NULL
4300 * @options: options (not used yet)
4301 *
4302 * Validate the document as it is processed using XML Schema.
4303 * Activation is only possible before the first Read().
4304 * If both @xsd and @ctxt are NULL then XML Schema validation is deactivated.
4305 *
4306 * Returns 0 in case the schemas validation could be (de)activated and
4307 * -1 in case of error.
4308 */
4309 static int
xmlTextReaderSchemaValidateInternal(xmlTextReaderPtr reader,const char * xsd,xmlSchemaValidCtxtPtr ctxt,int options ATTRIBUTE_UNUSED)4310 xmlTextReaderSchemaValidateInternal(xmlTextReaderPtr reader,
4311 const char *xsd,
4312 xmlSchemaValidCtxtPtr ctxt,
4313 int options ATTRIBUTE_UNUSED)
4314 {
4315 if (reader == NULL)
4316 return(-1);
4317
4318 if ((xsd != NULL) && (ctxt != NULL))
4319 return(-1);
4320
4321 if (((xsd != NULL) || (ctxt != NULL)) &&
4322 ((reader->mode != XML_TEXTREADER_MODE_INITIAL) ||
4323 (reader->ctxt == NULL)))
4324 return(-1);
4325
4326 /* Cleanup previous validation stuff. */
4327 if (reader->xsdPlug != NULL) {
4328 xmlSchemaSAXUnplug(reader->xsdPlug);
4329 reader->xsdPlug = NULL;
4330 }
4331 if (reader->xsdValidCtxt != NULL) {
4332 if (! reader->xsdPreserveCtxt)
4333 xmlSchemaFreeValidCtxt(reader->xsdValidCtxt);
4334 reader->xsdValidCtxt = NULL;
4335 }
4336 reader->xsdPreserveCtxt = 0;
4337 if (reader->xsdSchemas != NULL) {
4338 xmlSchemaFree(reader->xsdSchemas);
4339 reader->xsdSchemas = NULL;
4340 }
4341
4342 if ((xsd == NULL) && (ctxt == NULL)) {
4343 /* We just want to deactivate the validation, so get out. */
4344 return(0);
4345 }
4346
4347 if (xsd != NULL) {
4348 xmlSchemaParserCtxtPtr pctxt;
4349 /* Parse the schema and create validation environment. */
4350 pctxt = xmlSchemaNewParserCtxt(xsd);
4351 if (reader->errorFunc != NULL) {
4352 xmlSchemaSetParserErrors(pctxt,
4353 xmlTextReaderValidityErrorRelay,
4354 xmlTextReaderValidityWarningRelay,
4355 reader);
4356 }
4357 reader->xsdSchemas = xmlSchemaParse(pctxt);
4358 xmlSchemaFreeParserCtxt(pctxt);
4359 if (reader->xsdSchemas == NULL)
4360 return(-1);
4361 reader->xsdValidCtxt = xmlSchemaNewValidCtxt(reader->xsdSchemas);
4362 if (reader->xsdValidCtxt == NULL) {
4363 xmlSchemaFree(reader->xsdSchemas);
4364 reader->xsdSchemas = NULL;
4365 return(-1);
4366 }
4367 reader->xsdPlug = xmlSchemaSAXPlug(reader->xsdValidCtxt,
4368 &(reader->ctxt->sax),
4369 &(reader->ctxt->userData));
4370 if (reader->xsdPlug == NULL) {
4371 xmlSchemaFree(reader->xsdSchemas);
4372 reader->xsdSchemas = NULL;
4373 xmlSchemaFreeValidCtxt(reader->xsdValidCtxt);
4374 reader->xsdValidCtxt = NULL;
4375 return(-1);
4376 }
4377 } else {
4378 /* Use the given validation context. */
4379 reader->xsdValidCtxt = ctxt;
4380 reader->xsdPreserveCtxt = 1;
4381 reader->xsdPlug = xmlSchemaSAXPlug(reader->xsdValidCtxt,
4382 &(reader->ctxt->sax),
4383 &(reader->ctxt->userData));
4384 if (reader->xsdPlug == NULL) {
4385 reader->xsdValidCtxt = NULL;
4386 reader->xsdPreserveCtxt = 0;
4387 return(-1);
4388 }
4389 }
4390 /*
4391 * Redirect the validation context's error channels to use
4392 * the reader channels.
4393 * TODO: In case the user provides the validation context we
4394 * could make this redirection optional.
4395 */
4396 if (reader->errorFunc != NULL) {
4397 xmlSchemaSetValidErrors(reader->xsdValidCtxt,
4398 xmlTextReaderValidityErrorRelay,
4399 xmlTextReaderValidityWarningRelay,
4400 reader);
4401 }
4402 if (reader->sErrorFunc != NULL) {
4403 xmlSchemaSetValidStructuredErrors(reader->xsdValidCtxt,
4404 xmlTextReaderValidityStructuredRelay,
4405 reader);
4406 }
4407 reader->xsdValidErrors = 0;
4408 reader->validate = XML_TEXTREADER_VALIDATE_XSD;
4409 return(0);
4410 }
4411
4412 /**
4413 * xmlTextReaderSchemaValidateCtxt:
4414 * @reader: the xmlTextReaderPtr used
4415 * @ctxt: the XML Schema validation context or NULL
4416 * @options: options (not used yet)
4417 *
4418 * Use W3C XSD schema context to validate the document as it is processed.
4419 * Activation is only possible before the first Read().
4420 * If @ctxt is NULL, then XML Schema validation is deactivated.
4421 *
4422 * Returns 0 in case the schemas validation could be (de)activated and
4423 * -1 in case of error.
4424 */
4425 int
xmlTextReaderSchemaValidateCtxt(xmlTextReaderPtr reader,xmlSchemaValidCtxtPtr ctxt,int options)4426 xmlTextReaderSchemaValidateCtxt(xmlTextReaderPtr reader,
4427 xmlSchemaValidCtxtPtr ctxt,
4428 int options)
4429 {
4430 return(xmlTextReaderSchemaValidateInternal(reader, NULL, ctxt, options));
4431 }
4432
4433 /**
4434 * xmlTextReaderSchemaValidate:
4435 * @reader: the xmlTextReaderPtr used
4436 * @xsd: the path to a W3C XSD schema or NULL
4437 *
4438 * Use W3C XSD schema to validate the document as it is processed.
4439 * Activation is only possible before the first Read().
4440 * If @xsd is NULL, then XML Schema validation is deactivated.
4441 *
4442 * Returns 0 in case the schemas validation could be (de)activated and
4443 * -1 in case of error.
4444 */
4445 int
xmlTextReaderSchemaValidate(xmlTextReaderPtr reader,const char * xsd)4446 xmlTextReaderSchemaValidate(xmlTextReaderPtr reader, const char *xsd)
4447 {
4448 return(xmlTextReaderSchemaValidateInternal(reader, xsd, NULL, 0));
4449 }
4450 #endif
4451
4452 /**
4453 * xmlTextReaderIsNamespaceDecl:
4454 * @reader: the xmlTextReaderPtr used
4455 *
4456 * Determine whether the current node is a namespace declaration
4457 * rather than a regular attribute.
4458 *
4459 * Returns 1 if the current node is a namespace declaration, 0 if it
4460 * is a regular attribute or other type of node, or -1 in case of
4461 * error.
4462 */
4463 int
xmlTextReaderIsNamespaceDecl(xmlTextReaderPtr reader)4464 xmlTextReaderIsNamespaceDecl(xmlTextReaderPtr reader) {
4465 xmlNodePtr node;
4466 if (reader == NULL)
4467 return(-1);
4468 if (reader->node == NULL)
4469 return(-1);
4470 if (reader->curnode != NULL)
4471 node = reader->curnode;
4472 else
4473 node = reader->node;
4474
4475 if (XML_NAMESPACE_DECL == node->type)
4476 return(1);
4477 else
4478 return(0);
4479 }
4480
4481 /**
4482 * xmlTextReaderConstXmlVersion:
4483 * @reader: the xmlTextReaderPtr used
4484 *
4485 * Determine the XML version of the document being read.
4486 *
4487 * Returns a string containing the XML version of the document or NULL
4488 * in case of error. The string is deallocated with the reader.
4489 */
4490 const xmlChar *
xmlTextReaderConstXmlVersion(xmlTextReaderPtr reader)4491 xmlTextReaderConstXmlVersion(xmlTextReaderPtr reader) {
4492 xmlDocPtr doc = NULL;
4493 if (reader == NULL)
4494 return(NULL);
4495 if (reader->doc != NULL)
4496 doc = reader->doc;
4497 else if (reader->ctxt != NULL)
4498 doc = reader->ctxt->myDoc;
4499 if (doc == NULL)
4500 return(NULL);
4501
4502 if (doc->version == NULL)
4503 return(NULL);
4504 else
4505 return(CONSTSTR(doc->version));
4506 }
4507
4508 /**
4509 * xmlTextReaderStandalone:
4510 * @reader: the xmlTextReaderPtr used
4511 *
4512 * Determine the standalone status of the document being read.
4513 *
4514 * Returns 1 if the document was declared to be standalone, 0 if it
4515 * was declared to be not standalone, or -1 if the document did not
4516 * specify its standalone status or in case of error.
4517 */
4518 int
xmlTextReaderStandalone(xmlTextReaderPtr reader)4519 xmlTextReaderStandalone(xmlTextReaderPtr reader) {
4520 xmlDocPtr doc = NULL;
4521 if (reader == NULL)
4522 return(-1);
4523 if (reader->doc != NULL)
4524 doc = reader->doc;
4525 else if (reader->ctxt != NULL)
4526 doc = reader->ctxt->myDoc;
4527 if (doc == NULL)
4528 return(-1);
4529
4530 return(doc->standalone);
4531 }
4532
4533 /************************************************************************
4534 * *
4535 * Error Handling Extensions *
4536 * *
4537 ************************************************************************/
4538
4539 /* helper to build a xmlMalloc'ed string from a format and va_list */
4540 static char *
xmlTextReaderBuildMessage(const char * msg,va_list ap)4541 xmlTextReaderBuildMessage(const char *msg, va_list ap) {
4542 int size = 0;
4543 int chars;
4544 char *larger;
4545 char *str = NULL;
4546 va_list aq;
4547
4548 while (1) {
4549 VA_COPY(aq, ap);
4550 chars = vsnprintf(str, size, msg, aq);
4551 va_end(aq);
4552 if (chars < 0) {
4553 xmlGenericError(xmlGenericErrorContext, "vsnprintf failed !\n");
4554 if (str)
4555 xmlFree(str);
4556 return NULL;
4557 }
4558 if ((chars < size) || (size == MAX_ERR_MSG_SIZE))
4559 break;
4560 if (chars < MAX_ERR_MSG_SIZE)
4561 size = chars + 1;
4562 else
4563 size = MAX_ERR_MSG_SIZE;
4564 if ((larger = (char *) xmlRealloc(str, size)) == NULL) {
4565 xmlGenericError(xmlGenericErrorContext, "xmlRealloc failed !\n");
4566 if (str)
4567 xmlFree(str);
4568 return NULL;
4569 }
4570 str = larger;
4571 }
4572
4573 return str;
4574 }
4575
4576 /**
4577 * xmlTextReaderLocatorLineNumber:
4578 * @locator: the xmlTextReaderLocatorPtr used
4579 *
4580 * Obtain the line number for the given locator.
4581 *
4582 * Returns the line number or -1 in case of error.
4583 */
4584 int
xmlTextReaderLocatorLineNumber(xmlTextReaderLocatorPtr locator)4585 xmlTextReaderLocatorLineNumber(xmlTextReaderLocatorPtr locator) {
4586 /* we know that locator is a xmlParserCtxtPtr */
4587 xmlParserCtxtPtr ctx = (xmlParserCtxtPtr)locator;
4588 int ret = -1;
4589
4590 if (locator == NULL)
4591 return(-1);
4592 if (ctx->node != NULL) {
4593 ret = xmlGetLineNo(ctx->node);
4594 }
4595 else {
4596 /* inspired from error.c */
4597 xmlParserInputPtr input;
4598 input = ctx->input;
4599 if ((input->filename == NULL) && (ctx->inputNr > 1))
4600 input = ctx->inputTab[ctx->inputNr - 2];
4601 if (input != NULL) {
4602 ret = input->line;
4603 }
4604 else {
4605 ret = -1;
4606 }
4607 }
4608
4609 return ret;
4610 }
4611
4612 /**
4613 * xmlTextReaderLocatorBaseURI:
4614 * @locator: the xmlTextReaderLocatorPtr used
4615 *
4616 * Obtain the base URI for the given locator.
4617 *
4618 * Returns the base URI or NULL in case of error,
4619 * if non NULL it need to be freed by the caller.
4620 */
4621 xmlChar *
xmlTextReaderLocatorBaseURI(xmlTextReaderLocatorPtr locator)4622 xmlTextReaderLocatorBaseURI(xmlTextReaderLocatorPtr locator) {
4623 /* we know that locator is a xmlParserCtxtPtr */
4624 xmlParserCtxtPtr ctx = (xmlParserCtxtPtr)locator;
4625 xmlChar *ret = NULL;
4626
4627 if (locator == NULL)
4628 return(NULL);
4629 if (ctx->node != NULL) {
4630 ret = xmlNodeGetBase(NULL,ctx->node);
4631 }
4632 else {
4633 /* inspired from error.c */
4634 xmlParserInputPtr input;
4635 input = ctx->input;
4636 if ((input->filename == NULL) && (ctx->inputNr > 1))
4637 input = ctx->inputTab[ctx->inputNr - 2];
4638 if (input != NULL) {
4639 ret = xmlStrdup(BAD_CAST input->filename);
4640 }
4641 else {
4642 ret = NULL;
4643 }
4644 }
4645
4646 return ret;
4647 }
4648
4649 static void
xmlTextReaderGenericError(void * ctxt,xmlParserSeverities severity,char * str)4650 xmlTextReaderGenericError(void *ctxt, xmlParserSeverities severity,
4651 char *str)
4652 {
4653 xmlParserCtxtPtr ctx = (xmlParserCtxtPtr) ctxt;
4654
4655 xmlTextReaderPtr reader = (xmlTextReaderPtr) ctx->_private;
4656
4657 if (str != NULL) {
4658 if (reader->errorFunc)
4659 reader->errorFunc(reader->errorFuncArg, str, severity,
4660 (xmlTextReaderLocatorPtr) ctx);
4661 xmlFree(str);
4662 }
4663 }
4664
4665 static void
xmlTextReaderStructuredError(void * ctxt,xmlErrorPtr error)4666 xmlTextReaderStructuredError(void *ctxt, xmlErrorPtr error)
4667 {
4668 xmlParserCtxtPtr ctx = (xmlParserCtxtPtr) ctxt;
4669
4670 xmlTextReaderPtr reader = (xmlTextReaderPtr) ctx->_private;
4671
4672 if (error && reader->sErrorFunc) {
4673 reader->sErrorFunc(reader->errorFuncArg, (xmlErrorPtr) error);
4674 }
4675 }
4676
4677 static void XMLCDECL
xmlTextReaderError(void * ctxt,const char * msg,...)4678 xmlTextReaderError(void *ctxt, const char *msg, ...)
4679 {
4680 va_list ap;
4681
4682 va_start(ap, msg);
4683 xmlTextReaderGenericError(ctxt,
4684 XML_PARSER_SEVERITY_ERROR,
4685 xmlTextReaderBuildMessage(msg, ap));
4686 va_end(ap);
4687
4688 }
4689
4690 static void XMLCDECL
xmlTextReaderWarning(void * ctxt,const char * msg,...)4691 xmlTextReaderWarning(void *ctxt, const char *msg, ...)
4692 {
4693 va_list ap;
4694
4695 va_start(ap, msg);
4696 xmlTextReaderGenericError(ctxt,
4697 XML_PARSER_SEVERITY_WARNING,
4698 xmlTextReaderBuildMessage(msg, ap));
4699 va_end(ap);
4700 }
4701
4702 static void XMLCDECL
xmlTextReaderValidityError(void * ctxt,const char * msg,...)4703 xmlTextReaderValidityError(void *ctxt, const char *msg, ...)
4704 {
4705 va_list ap;
4706
4707 int len = xmlStrlen((const xmlChar *) msg);
4708
4709 if ((len > 1) && (msg[len - 2] != ':')) {
4710 /*
4711 * some callbacks only report locator information:
4712 * skip them (mimicking behaviour in error.c)
4713 */
4714 va_start(ap, msg);
4715 xmlTextReaderGenericError(ctxt,
4716 XML_PARSER_SEVERITY_VALIDITY_ERROR,
4717 xmlTextReaderBuildMessage(msg, ap));
4718 va_end(ap);
4719 }
4720 }
4721
4722 static void XMLCDECL
xmlTextReaderValidityWarning(void * ctxt,const char * msg,...)4723 xmlTextReaderValidityWarning(void *ctxt, const char *msg, ...)
4724 {
4725 va_list ap;
4726
4727 int len = xmlStrlen((const xmlChar *) msg);
4728
4729 if ((len != 0) && (msg[len - 1] != ':')) {
4730 /*
4731 * some callbacks only report locator information:
4732 * skip them (mimicking behaviour in error.c)
4733 */
4734 va_start(ap, msg);
4735 xmlTextReaderGenericError(ctxt,
4736 XML_PARSER_SEVERITY_VALIDITY_WARNING,
4737 xmlTextReaderBuildMessage(msg, ap));
4738 va_end(ap);
4739 }
4740 }
4741
4742 /**
4743 * xmlTextReaderSetErrorHandler:
4744 * @reader: the xmlTextReaderPtr used
4745 * @f: the callback function to call on error and warnings
4746 * @arg: a user argument to pass to the callback function
4747 *
4748 * Register a callback function that will be called on error and warnings.
4749 *
4750 * If @f is NULL, the default error and warning handlers are restored.
4751 */
4752 void
xmlTextReaderSetErrorHandler(xmlTextReaderPtr reader,xmlTextReaderErrorFunc f,void * arg)4753 xmlTextReaderSetErrorHandler(xmlTextReaderPtr reader,
4754 xmlTextReaderErrorFunc f, void *arg)
4755 {
4756 if (f != NULL) {
4757 reader->ctxt->sax->error = xmlTextReaderError;
4758 reader->ctxt->sax->serror = NULL;
4759 reader->ctxt->vctxt.error = xmlTextReaderValidityError;
4760 reader->ctxt->sax->warning = xmlTextReaderWarning;
4761 reader->ctxt->vctxt.warning = xmlTextReaderValidityWarning;
4762 reader->errorFunc = f;
4763 reader->sErrorFunc = NULL;
4764 reader->errorFuncArg = arg;
4765 #ifdef LIBXML_SCHEMAS_ENABLED
4766 if (reader->rngValidCtxt) {
4767 xmlRelaxNGSetValidErrors(reader->rngValidCtxt,
4768 xmlTextReaderValidityErrorRelay,
4769 xmlTextReaderValidityWarningRelay,
4770 reader);
4771 xmlRelaxNGSetValidStructuredErrors(reader->rngValidCtxt, NULL,
4772 reader);
4773 }
4774 if (reader->xsdValidCtxt) {
4775 xmlSchemaSetValidErrors(reader->xsdValidCtxt,
4776 xmlTextReaderValidityErrorRelay,
4777 xmlTextReaderValidityWarningRelay,
4778 reader);
4779 xmlSchemaSetValidStructuredErrors(reader->xsdValidCtxt, NULL,
4780 reader);
4781 }
4782 #endif
4783 } else {
4784 /* restore defaults */
4785 reader->ctxt->sax->error = xmlParserError;
4786 reader->ctxt->vctxt.error = xmlParserValidityError;
4787 reader->ctxt->sax->warning = xmlParserWarning;
4788 reader->ctxt->vctxt.warning = xmlParserValidityWarning;
4789 reader->errorFunc = NULL;
4790 reader->sErrorFunc = NULL;
4791 reader->errorFuncArg = NULL;
4792 #ifdef LIBXML_SCHEMAS_ENABLED
4793 if (reader->rngValidCtxt) {
4794 xmlRelaxNGSetValidErrors(reader->rngValidCtxt, NULL, NULL,
4795 reader);
4796 xmlRelaxNGSetValidStructuredErrors(reader->rngValidCtxt, NULL,
4797 reader);
4798 }
4799 if (reader->xsdValidCtxt) {
4800 xmlSchemaSetValidErrors(reader->xsdValidCtxt, NULL, NULL,
4801 reader);
4802 xmlSchemaSetValidStructuredErrors(reader->xsdValidCtxt, NULL,
4803 reader);
4804 }
4805 #endif
4806 }
4807 }
4808
4809 /**
4810 * xmlTextReaderSetStructuredErrorHandler:
4811 * @reader: the xmlTextReaderPtr used
4812 * @f: the callback function to call on error and warnings
4813 * @arg: a user argument to pass to the callback function
4814 *
4815 * Register a callback function that will be called on error and warnings.
4816 *
4817 * If @f is NULL, the default error and warning handlers are restored.
4818 */
4819 void
xmlTextReaderSetStructuredErrorHandler(xmlTextReaderPtr reader,xmlStructuredErrorFunc f,void * arg)4820 xmlTextReaderSetStructuredErrorHandler(xmlTextReaderPtr reader,
4821 xmlStructuredErrorFunc f, void *arg)
4822 {
4823 if (f != NULL) {
4824 reader->ctxt->sax->error = NULL;
4825 reader->ctxt->sax->serror = xmlTextReaderStructuredError;
4826 reader->ctxt->vctxt.error = xmlTextReaderValidityError;
4827 reader->ctxt->sax->warning = xmlTextReaderWarning;
4828 reader->ctxt->vctxt.warning = xmlTextReaderValidityWarning;
4829 reader->sErrorFunc = f;
4830 reader->errorFunc = NULL;
4831 reader->errorFuncArg = arg;
4832 #ifdef LIBXML_SCHEMAS_ENABLED
4833 if (reader->rngValidCtxt) {
4834 xmlRelaxNGSetValidErrors(reader->rngValidCtxt, NULL, NULL,
4835 reader);
4836 xmlRelaxNGSetValidStructuredErrors(reader->rngValidCtxt,
4837 xmlTextReaderValidityStructuredRelay,
4838 reader);
4839 }
4840 if (reader->xsdValidCtxt) {
4841 xmlSchemaSetValidErrors(reader->xsdValidCtxt, NULL, NULL,
4842 reader);
4843 xmlSchemaSetValidStructuredErrors(reader->xsdValidCtxt,
4844 xmlTextReaderValidityStructuredRelay,
4845 reader);
4846 }
4847 #endif
4848 } else {
4849 /* restore defaults */
4850 reader->ctxt->sax->error = xmlParserError;
4851 reader->ctxt->sax->serror = NULL;
4852 reader->ctxt->vctxt.error = xmlParserValidityError;
4853 reader->ctxt->sax->warning = xmlParserWarning;
4854 reader->ctxt->vctxt.warning = xmlParserValidityWarning;
4855 reader->errorFunc = NULL;
4856 reader->sErrorFunc = NULL;
4857 reader->errorFuncArg = NULL;
4858 #ifdef LIBXML_SCHEMAS_ENABLED
4859 if (reader->rngValidCtxt) {
4860 xmlRelaxNGSetValidErrors(reader->rngValidCtxt, NULL, NULL,
4861 reader);
4862 xmlRelaxNGSetValidStructuredErrors(reader->rngValidCtxt, NULL,
4863 reader);
4864 }
4865 if (reader->xsdValidCtxt) {
4866 xmlSchemaSetValidErrors(reader->xsdValidCtxt, NULL, NULL,
4867 reader);
4868 xmlSchemaSetValidStructuredErrors(reader->xsdValidCtxt, NULL,
4869 reader);
4870 }
4871 #endif
4872 }
4873 }
4874
4875 /**
4876 * xmlTextReaderIsValid:
4877 * @reader: the xmlTextReaderPtr used
4878 *
4879 * Retrieve the validity status from the parser context
4880 *
4881 * Returns the flag value 1 if valid, 0 if no, and -1 in case of error
4882 */
4883 int
xmlTextReaderIsValid(xmlTextReaderPtr reader)4884 xmlTextReaderIsValid(xmlTextReaderPtr reader)
4885 {
4886 if (reader == NULL)
4887 return (-1);
4888 #ifdef LIBXML_SCHEMAS_ENABLED
4889 if (reader->validate == XML_TEXTREADER_VALIDATE_RNG)
4890 return (reader->rngValidErrors == 0);
4891 if (reader->validate == XML_TEXTREADER_VALIDATE_XSD)
4892 return (reader->xsdValidErrors == 0);
4893 #endif
4894 if ((reader->ctxt != NULL) && (reader->ctxt->validate == 1))
4895 return (reader->ctxt->valid);
4896 return (0);
4897 }
4898
4899 /**
4900 * xmlTextReaderGetErrorHandler:
4901 * @reader: the xmlTextReaderPtr used
4902 * @f: the callback function or NULL is no callback has been registered
4903 * @arg: a user argument
4904 *
4905 * Retrieve the error callback function and user argument.
4906 */
4907 void
xmlTextReaderGetErrorHandler(xmlTextReaderPtr reader,xmlTextReaderErrorFunc * f,void ** arg)4908 xmlTextReaderGetErrorHandler(xmlTextReaderPtr reader,
4909 xmlTextReaderErrorFunc * f, void **arg)
4910 {
4911 if (f != NULL)
4912 *f = reader->errorFunc;
4913 if (arg != NULL)
4914 *arg = reader->errorFuncArg;
4915 }
4916 /************************************************************************
4917 * *
4918 * New set (2.6.0) of simpler and more flexible APIs *
4919 * *
4920 ************************************************************************/
4921
4922 /**
4923 * xmlTextReaderSetup:
4924 * @reader: an XML reader
4925 * @input: xmlParserInputBufferPtr used to feed the reader, will
4926 * be destroyed with it.
4927 * @URL: the base URL to use for the document
4928 * @encoding: the document encoding, or NULL
4929 * @options: a combination of xmlParserOption
4930 *
4931 * Setup an XML reader with new options
4932 *
4933 * Returns 0 in case of success and -1 in case of error.
4934 */
4935 int
xmlTextReaderSetup(xmlTextReaderPtr reader,xmlParserInputBufferPtr input,const char * URL,const char * encoding,int options)4936 xmlTextReaderSetup(xmlTextReaderPtr reader,
4937 xmlParserInputBufferPtr input, const char *URL,
4938 const char *encoding, int options)
4939 {
4940 if (reader == NULL) {
4941 if (input != NULL)
4942 xmlFreeParserInputBuffer(input);
4943 return (-1);
4944 }
4945
4946 /*
4947 * we force the generation of compact text nodes on the reader
4948 * since usr applications should never modify the tree
4949 */
4950 options |= XML_PARSE_COMPACT;
4951
4952 reader->doc = NULL;
4953 reader->entNr = 0;
4954 reader->parserFlags = options;
4955 reader->validate = XML_TEXTREADER_NOT_VALIDATE;
4956 if ((input != NULL) && (reader->input != NULL) &&
4957 (reader->allocs & XML_TEXTREADER_INPUT)) {
4958 xmlFreeParserInputBuffer(reader->input);
4959 reader->input = NULL;
4960 reader->allocs -= XML_TEXTREADER_INPUT;
4961 }
4962 if (input != NULL) {
4963 reader->input = input;
4964 reader->allocs |= XML_TEXTREADER_INPUT;
4965 }
4966 if (reader->buffer == NULL)
4967 reader->buffer = xmlBufferCreateSize(100);
4968 if (reader->buffer == NULL) {
4969 xmlGenericError(xmlGenericErrorContext,
4970 "xmlTextReaderSetup : malloc failed\n");
4971 return (-1);
4972 }
4973 if (reader->sax == NULL)
4974 reader->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler));
4975 if (reader->sax == NULL) {
4976 xmlGenericError(xmlGenericErrorContext,
4977 "xmlTextReaderSetup : malloc failed\n");
4978 return (-1);
4979 }
4980 xmlSAXVersion(reader->sax, 2);
4981 reader->startElement = reader->sax->startElement;
4982 reader->sax->startElement = xmlTextReaderStartElement;
4983 reader->endElement = reader->sax->endElement;
4984 reader->sax->endElement = xmlTextReaderEndElement;
4985 #ifdef LIBXML_SAX1_ENABLED
4986 if (reader->sax->initialized == XML_SAX2_MAGIC) {
4987 #endif /* LIBXML_SAX1_ENABLED */
4988 reader->startElementNs = reader->sax->startElementNs;
4989 reader->sax->startElementNs = xmlTextReaderStartElementNs;
4990 reader->endElementNs = reader->sax->endElementNs;
4991 reader->sax->endElementNs = xmlTextReaderEndElementNs;
4992 #ifdef LIBXML_SAX1_ENABLED
4993 } else {
4994 reader->startElementNs = NULL;
4995 reader->endElementNs = NULL;
4996 }
4997 #endif /* LIBXML_SAX1_ENABLED */
4998 reader->characters = reader->sax->characters;
4999 reader->sax->characters = xmlTextReaderCharacters;
5000 reader->sax->ignorableWhitespace = xmlTextReaderCharacters;
5001 reader->cdataBlock = reader->sax->cdataBlock;
5002 reader->sax->cdataBlock = xmlTextReaderCDataBlock;
5003
5004 reader->mode = XML_TEXTREADER_MODE_INITIAL;
5005 reader->node = NULL;
5006 reader->curnode = NULL;
5007 if (input != NULL) {
5008 if (reader->input->buffer->use < 4) {
5009 xmlParserInputBufferRead(input, 4);
5010 }
5011 if (reader->ctxt == NULL) {
5012 if (reader->input->buffer->use >= 4) {
5013 reader->ctxt = xmlCreatePushParserCtxt(reader->sax, NULL,
5014 (const char *) reader->input->buffer->content, 4, URL);
5015 reader->base = 0;
5016 reader->cur = 4;
5017 } else {
5018 reader->ctxt =
5019 xmlCreatePushParserCtxt(reader->sax, NULL, NULL, 0, URL);
5020 reader->base = 0;
5021 reader->cur = 0;
5022 }
5023 } else {
5024 xmlParserInputPtr inputStream;
5025 xmlParserInputBufferPtr buf;
5026 xmlCharEncoding enc = XML_CHAR_ENCODING_NONE;
5027
5028 xmlCtxtReset(reader->ctxt);
5029 buf = xmlAllocParserInputBuffer(enc);
5030 if (buf == NULL) return(-1);
5031 inputStream = xmlNewInputStream(reader->ctxt);
5032 if (inputStream == NULL) {
5033 xmlFreeParserInputBuffer(buf);
5034 return(-1);
5035 }
5036
5037 if (URL == NULL)
5038 inputStream->filename = NULL;
5039 else
5040 inputStream->filename = (char *)
5041 xmlCanonicPath((const xmlChar *) URL);
5042 inputStream->buf = buf;
5043 inputStream->base = inputStream->buf->buffer->content;
5044 inputStream->cur = inputStream->buf->buffer->content;
5045 inputStream->end =
5046 &inputStream->buf->buffer->content[inputStream->buf->buffer->use];
5047
5048 inputPush(reader->ctxt, inputStream);
5049 reader->cur = 0;
5050 }
5051 if (reader->ctxt == NULL) {
5052 xmlGenericError(xmlGenericErrorContext,
5053 "xmlTextReaderSetup : malloc failed\n");
5054 return (-1);
5055 }
5056 }
5057 if (reader->dict != NULL) {
5058 if (reader->ctxt->dict != NULL) {
5059 if (reader->dict != reader->ctxt->dict) {
5060 xmlDictFree(reader->dict);
5061 reader->dict = reader->ctxt->dict;
5062 }
5063 } else {
5064 reader->ctxt->dict = reader->dict;
5065 }
5066 } else {
5067 if (reader->ctxt->dict == NULL)
5068 reader->ctxt->dict = xmlDictCreate();
5069 reader->dict = reader->ctxt->dict;
5070 }
5071 reader->ctxt->_private = reader;
5072 reader->ctxt->linenumbers = 1;
5073 reader->ctxt->dictNames = 1;
5074 /*
5075 * use the parser dictionnary to allocate all elements and attributes names
5076 */
5077 reader->ctxt->docdict = 1;
5078 reader->ctxt->parseMode = XML_PARSE_READER;
5079
5080 #ifdef LIBXML_XINCLUDE_ENABLED
5081 if (reader->xincctxt != NULL) {
5082 xmlXIncludeFreeContext(reader->xincctxt);
5083 reader->xincctxt = NULL;
5084 }
5085 if (options & XML_PARSE_XINCLUDE) {
5086 reader->xinclude = 1;
5087 reader->xinclude_name = xmlDictLookup(reader->dict, XINCLUDE_NODE, -1);
5088 options -= XML_PARSE_XINCLUDE;
5089 } else
5090 reader->xinclude = 0;
5091 reader->in_xinclude = 0;
5092 #endif
5093 #ifdef LIBXML_PATTERN_ENABLED
5094 if (reader->patternTab == NULL) {
5095 reader->patternNr = 0;
5096 reader->patternMax = 0;
5097 }
5098 while (reader->patternNr > 0) {
5099 reader->patternNr--;
5100 if (reader->patternTab[reader->patternNr] != NULL) {
5101 xmlFreePattern(reader->patternTab[reader->patternNr]);
5102 reader->patternTab[reader->patternNr] = NULL;
5103 }
5104 }
5105 #endif
5106
5107 if (options & XML_PARSE_DTDVALID)
5108 reader->validate = XML_TEXTREADER_VALIDATE_DTD;
5109
5110 xmlCtxtUseOptions(reader->ctxt, options);
5111 if (encoding != NULL) {
5112 xmlCharEncodingHandlerPtr hdlr;
5113
5114 hdlr = xmlFindCharEncodingHandler(encoding);
5115 if (hdlr != NULL)
5116 xmlSwitchToEncoding(reader->ctxt, hdlr);
5117 }
5118 if ((URL != NULL) && (reader->ctxt->input != NULL) &&
5119 (reader->ctxt->input->filename == NULL))
5120 reader->ctxt->input->filename = (char *)
5121 xmlStrdup((const xmlChar *) URL);
5122
5123 reader->doc = NULL;
5124
5125 return (0);
5126 }
5127
5128 /**
5129 * xmlTextReaderByteConsumed:
5130 * @reader: an XML reader
5131 *
5132 * This function provides the current index of the parser used
5133 * by the reader, relative to the start of the current entity.
5134 * This function actually just wraps a call to xmlBytesConsumed()
5135 * for the parser context associated with the reader.
5136 * See xmlBytesConsumed() for more information.
5137 *
5138 * Returns the index in bytes from the beginning of the entity or -1
5139 * in case the index could not be computed.
5140 */
5141 long
xmlTextReaderByteConsumed(xmlTextReaderPtr reader)5142 xmlTextReaderByteConsumed(xmlTextReaderPtr reader) {
5143 if ((reader == NULL) || (reader->ctxt == NULL))
5144 return(-1);
5145 return(xmlByteConsumed(reader->ctxt));
5146 }
5147
5148
5149 /**
5150 * xmlReaderWalker:
5151 * @doc: a preparsed document
5152 *
5153 * Create an xmltextReader for a preparsed document.
5154 *
5155 * Returns the new reader or NULL in case of error.
5156 */
5157 xmlTextReaderPtr
xmlReaderWalker(xmlDocPtr doc)5158 xmlReaderWalker(xmlDocPtr doc)
5159 {
5160 xmlTextReaderPtr ret;
5161
5162 if (doc == NULL)
5163 return(NULL);
5164
5165 ret = xmlMalloc(sizeof(xmlTextReader));
5166 if (ret == NULL) {
5167 xmlGenericError(xmlGenericErrorContext,
5168 "xmlNewTextReader : malloc failed\n");
5169 return(NULL);
5170 }
5171 memset(ret, 0, sizeof(xmlTextReader));
5172 ret->entNr = 0;
5173 ret->input = NULL;
5174 ret->mode = XML_TEXTREADER_MODE_INITIAL;
5175 ret->node = NULL;
5176 ret->curnode = NULL;
5177 ret->base = 0;
5178 ret->cur = 0;
5179 ret->allocs = XML_TEXTREADER_CTXT;
5180 ret->doc = doc;
5181 ret->state = XML_TEXTREADER_START;
5182 ret->dict = xmlDictCreate();
5183 return(ret);
5184 }
5185
5186 /**
5187 * xmlReaderForDoc:
5188 * @cur: a pointer to a zero terminated string
5189 * @URL: the base URL to use for the document
5190 * @encoding: the document encoding, or NULL
5191 * @options: a combination of xmlParserOption
5192 *
5193 * Create an xmltextReader for an XML in-memory document.
5194 * The parsing flags @options are a combination of xmlParserOption.
5195 *
5196 * Returns the new reader or NULL in case of error.
5197 */
5198 xmlTextReaderPtr
xmlReaderForDoc(const xmlChar * cur,const char * URL,const char * encoding,int options)5199 xmlReaderForDoc(const xmlChar * cur, const char *URL, const char *encoding,
5200 int options)
5201 {
5202 int len;
5203
5204 if (cur == NULL)
5205 return (NULL);
5206 len = xmlStrlen(cur);
5207
5208 return (xmlReaderForMemory
5209 ((const char *) cur, len, URL, encoding, options));
5210 }
5211
5212 /**
5213 * xmlReaderForFile:
5214 * @filename: a file or URL
5215 * @encoding: the document encoding, or NULL
5216 * @options: a combination of xmlParserOption
5217 *
5218 * parse an XML file from the filesystem or the network.
5219 * The parsing flags @options are a combination of xmlParserOption.
5220 *
5221 * Returns the new reader or NULL in case of error.
5222 */
5223 xmlTextReaderPtr
xmlReaderForFile(const char * filename,const char * encoding,int options)5224 xmlReaderForFile(const char *filename, const char *encoding, int options)
5225 {
5226 xmlTextReaderPtr reader;
5227
5228 reader = xmlNewTextReaderFilename(filename);
5229 if (reader == NULL)
5230 return (NULL);
5231 xmlTextReaderSetup(reader, NULL, NULL, encoding, options);
5232 return (reader);
5233 }
5234
5235 /**
5236 * xmlReaderForMemory:
5237 * @buffer: a pointer to a char array
5238 * @size: the size of the array
5239 * @URL: the base URL to use for the document
5240 * @encoding: the document encoding, or NULL
5241 * @options: a combination of xmlParserOption
5242 *
5243 * Create an xmltextReader for an XML in-memory document.
5244 * The parsing flags @options are a combination of xmlParserOption.
5245 *
5246 * Returns the new reader or NULL in case of error.
5247 */
5248 xmlTextReaderPtr
xmlReaderForMemory(const char * buffer,int size,const char * URL,const char * encoding,int options)5249 xmlReaderForMemory(const char *buffer, int size, const char *URL,
5250 const char *encoding, int options)
5251 {
5252 xmlTextReaderPtr reader;
5253 xmlParserInputBufferPtr buf;
5254
5255 buf = xmlParserInputBufferCreateStatic(buffer, size,
5256 XML_CHAR_ENCODING_NONE);
5257 if (buf == NULL) {
5258 return (NULL);
5259 }
5260 reader = xmlNewTextReader(buf, URL);
5261 if (reader == NULL) {
5262 xmlFreeParserInputBuffer(buf);
5263 return (NULL);
5264 }
5265 reader->allocs |= XML_TEXTREADER_INPUT;
5266 xmlTextReaderSetup(reader, NULL, URL, encoding, options);
5267 return (reader);
5268 }
5269
5270 /**
5271 * xmlReaderForFd:
5272 * @fd: an open file descriptor
5273 * @URL: the base URL to use for the document
5274 * @encoding: the document encoding, or NULL
5275 * @options: a combination of xmlParserOption
5276 *
5277 * Create an xmltextReader for an XML from a file descriptor.
5278 * The parsing flags @options are a combination of xmlParserOption.
5279 * NOTE that the file descriptor will not be closed when the
5280 * reader is closed or reset.
5281 *
5282 * Returns the new reader or NULL in case of error.
5283 */
5284 xmlTextReaderPtr
xmlReaderForFd(int fd,const char * URL,const char * encoding,int options)5285 xmlReaderForFd(int fd, const char *URL, const char *encoding, int options)
5286 {
5287 xmlTextReaderPtr reader;
5288 xmlParserInputBufferPtr input;
5289
5290 if (fd < 0)
5291 return (NULL);
5292
5293 input = xmlParserInputBufferCreateFd(fd, XML_CHAR_ENCODING_NONE);
5294 if (input == NULL)
5295 return (NULL);
5296 input->closecallback = NULL;
5297 reader = xmlNewTextReader(input, URL);
5298 if (reader == NULL) {
5299 xmlFreeParserInputBuffer(input);
5300 return (NULL);
5301 }
5302 reader->allocs |= XML_TEXTREADER_INPUT;
5303 xmlTextReaderSetup(reader, NULL, URL, encoding, options);
5304 return (reader);
5305 }
5306
5307 /**
5308 * xmlReaderForIO:
5309 * @ioread: an I/O read function
5310 * @ioclose: an I/O close function
5311 * @ioctx: an I/O handler
5312 * @URL: the base URL to use for the document
5313 * @encoding: the document encoding, or NULL
5314 * @options: a combination of xmlParserOption
5315 *
5316 * Create an xmltextReader for an XML document from I/O functions and source.
5317 * The parsing flags @options are a combination of xmlParserOption.
5318 *
5319 * Returns the new reader or NULL in case of error.
5320 */
5321 xmlTextReaderPtr
xmlReaderForIO(xmlInputReadCallback ioread,xmlInputCloseCallback ioclose,void * ioctx,const char * URL,const char * encoding,int options)5322 xmlReaderForIO(xmlInputReadCallback ioread, xmlInputCloseCallback ioclose,
5323 void *ioctx, const char *URL, const char *encoding,
5324 int options)
5325 {
5326 xmlTextReaderPtr reader;
5327 xmlParserInputBufferPtr input;
5328
5329 if (ioread == NULL)
5330 return (NULL);
5331
5332 input = xmlParserInputBufferCreateIO(ioread, ioclose, ioctx,
5333 XML_CHAR_ENCODING_NONE);
5334 if (input == NULL)
5335 return (NULL);
5336 reader = xmlNewTextReader(input, URL);
5337 if (reader == NULL) {
5338 xmlFreeParserInputBuffer(input);
5339 return (NULL);
5340 }
5341 reader->allocs |= XML_TEXTREADER_INPUT;
5342 xmlTextReaderSetup(reader, NULL, URL, encoding, options);
5343 return (reader);
5344 }
5345
5346 /**
5347 * xmlReaderNewWalker:
5348 * @reader: an XML reader
5349 * @doc: a preparsed document
5350 *
5351 * Setup an xmltextReader to parse a preparsed XML document.
5352 * This reuses the existing @reader xmlTextReader.
5353 *
5354 * Returns 0 in case of success and -1 in case of error
5355 */
5356 int
xmlReaderNewWalker(xmlTextReaderPtr reader,xmlDocPtr doc)5357 xmlReaderNewWalker(xmlTextReaderPtr reader, xmlDocPtr doc)
5358 {
5359 if (doc == NULL)
5360 return (-1);
5361 if (reader == NULL)
5362 return (-1);
5363
5364 if (reader->input != NULL) {
5365 xmlFreeParserInputBuffer(reader->input);
5366 }
5367 if (reader->ctxt != NULL) {
5368 xmlCtxtReset(reader->ctxt);
5369 }
5370
5371 reader->entNr = 0;
5372 reader->input = NULL;
5373 reader->mode = XML_TEXTREADER_MODE_INITIAL;
5374 reader->node = NULL;
5375 reader->curnode = NULL;
5376 reader->base = 0;
5377 reader->cur = 0;
5378 reader->allocs = XML_TEXTREADER_CTXT;
5379 reader->doc = doc;
5380 reader->state = XML_TEXTREADER_START;
5381 if (reader->dict == NULL) {
5382 if ((reader->ctxt != NULL) && (reader->ctxt->dict != NULL))
5383 reader->dict = reader->ctxt->dict;
5384 else
5385 reader->dict = xmlDictCreate();
5386 }
5387 return(0);
5388 }
5389
5390 /**
5391 * xmlReaderNewDoc:
5392 * @reader: an XML reader
5393 * @cur: a pointer to a zero terminated string
5394 * @URL: the base URL to use for the document
5395 * @encoding: the document encoding, or NULL
5396 * @options: a combination of xmlParserOption
5397 *
5398 * Setup an xmltextReader to parse an XML in-memory document.
5399 * The parsing flags @options are a combination of xmlParserOption.
5400 * This reuses the existing @reader xmlTextReader.
5401 *
5402 * Returns 0 in case of success and -1 in case of error
5403 */
5404 int
xmlReaderNewDoc(xmlTextReaderPtr reader,const xmlChar * cur,const char * URL,const char * encoding,int options)5405 xmlReaderNewDoc(xmlTextReaderPtr reader, const xmlChar * cur,
5406 const char *URL, const char *encoding, int options)
5407 {
5408
5409 int len;
5410
5411 if (cur == NULL)
5412 return (-1);
5413 if (reader == NULL)
5414 return (-1);
5415
5416 len = xmlStrlen(cur);
5417 return (xmlReaderNewMemory(reader, (const char *)cur, len,
5418 URL, encoding, options));
5419 }
5420
5421 /**
5422 * xmlReaderNewFile:
5423 * @reader: an XML reader
5424 * @filename: a file or URL
5425 * @encoding: the document encoding, or NULL
5426 * @options: a combination of xmlParserOption
5427 *
5428 * parse an XML file from the filesystem or the network.
5429 * The parsing flags @options are a combination of xmlParserOption.
5430 * This reuses the existing @reader xmlTextReader.
5431 *
5432 * Returns 0 in case of success and -1 in case of error
5433 */
5434 int
xmlReaderNewFile(xmlTextReaderPtr reader,const char * filename,const char * encoding,int options)5435 xmlReaderNewFile(xmlTextReaderPtr reader, const char *filename,
5436 const char *encoding, int options)
5437 {
5438 xmlParserInputBufferPtr input;
5439
5440 if (filename == NULL)
5441 return (-1);
5442 if (reader == NULL)
5443 return (-1);
5444
5445 input =
5446 xmlParserInputBufferCreateFilename(filename,
5447 XML_CHAR_ENCODING_NONE);
5448 if (input == NULL)
5449 return (-1);
5450 return (xmlTextReaderSetup(reader, input, filename, encoding, options));
5451 }
5452
5453 /**
5454 * xmlReaderNewMemory:
5455 * @reader: an XML reader
5456 * @buffer: a pointer to a char array
5457 * @size: the size of the array
5458 * @URL: the base URL to use for the document
5459 * @encoding: the document encoding, or NULL
5460 * @options: a combination of xmlParserOption
5461 *
5462 * Setup an xmltextReader to parse an XML in-memory document.
5463 * The parsing flags @options are a combination of xmlParserOption.
5464 * This reuses the existing @reader xmlTextReader.
5465 *
5466 * Returns 0 in case of success and -1 in case of error
5467 */
5468 int
xmlReaderNewMemory(xmlTextReaderPtr reader,const char * buffer,int size,const char * URL,const char * encoding,int options)5469 xmlReaderNewMemory(xmlTextReaderPtr reader, const char *buffer, int size,
5470 const char *URL, const char *encoding, int options)
5471 {
5472 xmlParserInputBufferPtr input;
5473
5474 if (reader == NULL)
5475 return (-1);
5476 if (buffer == NULL)
5477 return (-1);
5478
5479 input = xmlParserInputBufferCreateStatic(buffer, size,
5480 XML_CHAR_ENCODING_NONE);
5481 if (input == NULL) {
5482 return (-1);
5483 }
5484 return (xmlTextReaderSetup(reader, input, URL, encoding, options));
5485 }
5486
5487 /**
5488 * xmlReaderNewFd:
5489 * @reader: an XML reader
5490 * @fd: an open file descriptor
5491 * @URL: the base URL to use for the document
5492 * @encoding: the document encoding, or NULL
5493 * @options: a combination of xmlParserOption
5494 *
5495 * Setup an xmltextReader to parse an XML from a file descriptor.
5496 * NOTE that the file descriptor will not be closed when the
5497 * reader is closed or reset.
5498 * The parsing flags @options are a combination of xmlParserOption.
5499 * This reuses the existing @reader xmlTextReader.
5500 *
5501 * Returns 0 in case of success and -1 in case of error
5502 */
5503 int
xmlReaderNewFd(xmlTextReaderPtr reader,int fd,const char * URL,const char * encoding,int options)5504 xmlReaderNewFd(xmlTextReaderPtr reader, int fd,
5505 const char *URL, const char *encoding, int options)
5506 {
5507 xmlParserInputBufferPtr input;
5508
5509 if (fd < 0)
5510 return (-1);
5511 if (reader == NULL)
5512 return (-1);
5513
5514 input = xmlParserInputBufferCreateFd(fd, XML_CHAR_ENCODING_NONE);
5515 if (input == NULL)
5516 return (-1);
5517 input->closecallback = NULL;
5518 return (xmlTextReaderSetup(reader, input, URL, encoding, options));
5519 }
5520
5521 /**
5522 * xmlReaderNewIO:
5523 * @reader: an XML reader
5524 * @ioread: an I/O read function
5525 * @ioclose: an I/O close function
5526 * @ioctx: an I/O handler
5527 * @URL: the base URL to use for the document
5528 * @encoding: the document encoding, or NULL
5529 * @options: a combination of xmlParserOption
5530 *
5531 * Setup an xmltextReader to parse an XML document from I/O functions
5532 * and source.
5533 * The parsing flags @options are a combination of xmlParserOption.
5534 * This reuses the existing @reader xmlTextReader.
5535 *
5536 * Returns 0 in case of success and -1 in case of error
5537 */
5538 int
xmlReaderNewIO(xmlTextReaderPtr reader,xmlInputReadCallback ioread,xmlInputCloseCallback ioclose,void * ioctx,const char * URL,const char * encoding,int options)5539 xmlReaderNewIO(xmlTextReaderPtr reader, xmlInputReadCallback ioread,
5540 xmlInputCloseCallback ioclose, void *ioctx,
5541 const char *URL, const char *encoding, int options)
5542 {
5543 xmlParserInputBufferPtr input;
5544
5545 if (ioread == NULL)
5546 return (-1);
5547 if (reader == NULL)
5548 return (-1);
5549
5550 input = xmlParserInputBufferCreateIO(ioread, ioclose, ioctx,
5551 XML_CHAR_ENCODING_NONE);
5552 if (input == NULL)
5553 return (-1);
5554 return (xmlTextReaderSetup(reader, input, URL, encoding, options));
5555 }
5556 /************************************************************************
5557 * *
5558 * Utilities *
5559 * *
5560 ************************************************************************/
5561 #ifdef NOT_USED_YET
5562
5563 /**
5564 * xmlBase64Decode:
5565 * @in: the input buffer
5566 * @inlen: the size of the input (in), the size read from it (out)
5567 * @to: the output buffer
5568 * @tolen: the size of the output (in), the size written to (out)
5569 *
5570 * Base64 decoder, reads from @in and save in @to
5571 * TODO: tell jody when this is actually exported
5572 *
5573 * Returns 0 if all the input was consumer, 1 if the Base64 end was reached,
5574 * 2 if there wasn't enough space on the output or -1 in case of error.
5575 */
5576 static int
xmlBase64Decode(const unsigned char * in,unsigned long * inlen,unsigned char * to,unsigned long * tolen)5577 xmlBase64Decode(const unsigned char *in, unsigned long *inlen,
5578 unsigned char *to, unsigned long *tolen)
5579 {
5580 unsigned long incur; /* current index in in[] */
5581
5582 unsigned long inblk; /* last block index in in[] */
5583
5584 unsigned long outcur; /* current index in out[] */
5585
5586 unsigned long inmax; /* size of in[] */
5587
5588 unsigned long outmax; /* size of out[] */
5589
5590 unsigned char cur; /* the current value read from in[] */
5591
5592 unsigned char intmp[4], outtmp[4]; /* temporary buffers for the convert */
5593
5594 int nbintmp; /* number of byte in intmp[] */
5595
5596 int is_ignore; /* cur should be ignored */
5597
5598 int is_end = 0; /* the end of the base64 was found */
5599
5600 int retval = 1;
5601
5602 int i;
5603
5604 if ((in == NULL) || (inlen == NULL) || (to == NULL) || (tolen == NULL))
5605 return (-1);
5606
5607 incur = 0;
5608 inblk = 0;
5609 outcur = 0;
5610 inmax = *inlen;
5611 outmax = *tolen;
5612 nbintmp = 0;
5613
5614 while (1) {
5615 if (incur >= inmax)
5616 break;
5617 cur = in[incur++];
5618 is_ignore = 0;
5619 if ((cur >= 'A') && (cur <= 'Z'))
5620 cur = cur - 'A';
5621 else if ((cur >= 'a') && (cur <= 'z'))
5622 cur = cur - 'a' + 26;
5623 else if ((cur >= '0') && (cur <= '9'))
5624 cur = cur - '0' + 52;
5625 else if (cur == '+')
5626 cur = 62;
5627 else if (cur == '/')
5628 cur = 63;
5629 else if (cur == '.')
5630 cur = 0;
5631 else if (cur == '=') /*no op , end of the base64 stream */
5632 is_end = 1;
5633 else {
5634 is_ignore = 1;
5635 if (nbintmp == 0)
5636 inblk = incur;
5637 }
5638
5639 if (!is_ignore) {
5640 int nbouttmp = 3;
5641
5642 int is_break = 0;
5643
5644 if (is_end) {
5645 if (nbintmp == 0)
5646 break;
5647 if ((nbintmp == 1) || (nbintmp == 2))
5648 nbouttmp = 1;
5649 else
5650 nbouttmp = 2;
5651 nbintmp = 3;
5652 is_break = 1;
5653 }
5654 intmp[nbintmp++] = cur;
5655 /*
5656 * if intmp is full, push the 4byte sequence as a 3 byte
5657 * sequence out
5658 */
5659 if (nbintmp == 4) {
5660 nbintmp = 0;
5661 outtmp[0] = (intmp[0] << 2) | ((intmp[1] & 0x30) >> 4);
5662 outtmp[1] =
5663 ((intmp[1] & 0x0F) << 4) | ((intmp[2] & 0x3C) >> 2);
5664 outtmp[2] = ((intmp[2] & 0x03) << 6) | (intmp[3] & 0x3F);
5665 if (outcur + 3 >= outmax) {
5666 retval = 2;
5667 break;
5668 }
5669
5670 for (i = 0; i < nbouttmp; i++)
5671 to[outcur++] = outtmp[i];
5672 inblk = incur;
5673 }
5674
5675 if (is_break) {
5676 retval = 0;
5677 break;
5678 }
5679 }
5680 }
5681
5682 *tolen = outcur;
5683 *inlen = inblk;
5684 return (retval);
5685 }
5686
5687 /*
5688 * Test routine for the xmlBase64Decode function
5689 */
5690 #if 0
5691 int
5692 main(int argc, char **argv)
5693 {
5694 char *input = " VW4 gcGV0 \n aXQgdGVzdCAuCg== ";
5695
5696 char output[100];
5697
5698 char output2[100];
5699
5700 char output3[100];
5701
5702 unsigned long inlen = strlen(input);
5703
5704 unsigned long outlen = 100;
5705
5706 int ret;
5707
5708 unsigned long cons, tmp, tmp2, prod;
5709
5710 /*
5711 * Direct
5712 */
5713 ret = xmlBase64Decode(input, &inlen, output, &outlen);
5714
5715 output[outlen] = 0;
5716 printf("ret: %d, inlen: %ld , outlen: %ld, output: '%s'\n", ret, inlen,
5717 outlen, output)indent: Standard input:179: Error:Unmatched #endif
5718 ;
5719
5720 /*
5721 * output chunking
5722 */
5723 cons = 0;
5724 prod = 0;
5725 while (cons < inlen) {
5726 tmp = 5;
5727 tmp2 = inlen - cons;
5728
5729 printf("%ld %ld\n", cons, prod);
5730 ret = xmlBase64Decode(&input[cons], &tmp2, &output2[prod], &tmp);
5731 cons += tmp2;
5732 prod += tmp;
5733 printf("%ld %ld\n", cons, prod);
5734 }
5735 output2[outlen] = 0;
5736 printf("ret: %d, cons: %ld , prod: %ld, output: '%s'\n", ret, cons,
5737 prod, output2);
5738
5739 /*
5740 * input chunking
5741 */
5742 cons = 0;
5743 prod = 0;
5744 while (cons < inlen) {
5745 tmp = 100 - prod;
5746 tmp2 = inlen - cons;
5747 if (tmp2 > 5)
5748 tmp2 = 5;
5749
5750 printf("%ld %ld\n", cons, prod);
5751 ret = xmlBase64Decode(&input[cons], &tmp2, &output3[prod], &tmp);
5752 cons += tmp2;
5753 prod += tmp;
5754 printf("%ld %ld\n", cons, prod);
5755 }
5756 output3[outlen] = 0;
5757 printf("ret: %d, cons: %ld , prod: %ld, output: '%s'\n", ret, cons,
5758 prod, output3);
5759 return (0);
5760
5761 }
5762 #endif
5763 #endif /* NOT_USED_YET */
5764 #define bottom_xmlreader
5765 #include "elfgcchack.h"
5766 #endif /* LIBXML_READER_ENABLED */
5767