tree.c@ 61328

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upstream fixes post 2.9.2
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1	/*
2	* tree.c : implementation of access function for an XML tree.
3	*
4	* References:
5	* XHTML 1.0 W3C REC: http://www.w3.org/TR/2002/REC-xhtml1-20020801/
6	*
7	* See Copyright for the status of this software.
8	*
9	* [email protected]
10	*
11	*/
12
13	#define IN_LIBXML
14	#include "libxml.h"
15
16	#include <string.h> /* for memset() only ! */
17	#include <limits.h>
18	#ifdef HAVE_CTYPE_H
19	#include <ctype.h>
20	#endif
21	#ifdef HAVE_STDLIB_H
22	#include <stdlib.h>
23	#endif
24	#ifdef HAVE_ZLIB_H
25	#include <zlib.h>
26	#endif
27
28	#include <libxml/xmlmemory.h>
29	#include <libxml/tree.h>
30	#include <libxml/parser.h>
31	#include <libxml/uri.h>
32	#include <libxml/entities.h>
33	#include <libxml/valid.h>
34	#include <libxml/xmlerror.h>
35	#include <libxml/parserInternals.h>
36	#include <libxml/globals.h>
37	#ifdef LIBXML_HTML_ENABLED
38	#include <libxml/HTMLtree.h>
39	#endif
40	#ifdef LIBXML_DEBUG_ENABLED
41	#include <libxml/debugXML.h>
42	#endif
43
44	#include "buf.h"
45	#include "save.h"
46
47	int __xmlRegisterCallbacks = 0;
48
49	/************************************************************************
50	* *
51	* Forward declarations *
52	* *
53	************************************************************************/
54
55	static xmlNsPtr
56	xmlNewReconciliedNs(xmlDocPtr doc, xmlNodePtr tree, xmlNsPtr ns);
57
58	static xmlChar* xmlGetPropNodeValueInternal(const xmlAttr *prop);
59
60	/************************************************************************
61	* *
62	* Tree memory error handler *
63	* *
64	************************************************************************/
65	/**
66	* xmlTreeErrMemory:
67	* @extra: extra informations
68	*
69	* Handle an out of memory condition
70	*/
71	static void
72	xmlTreeErrMemory(const char *extra)
73	{
74	__xmlSimpleError(XML_FROM_TREE, XML_ERR_NO_MEMORY, NULL, NULL, extra);
75	}
76
77	/**
78	* xmlTreeErr:
79	* @code: the error number
80	* @extra: extra informations
81	*
82	* Handle an out of memory condition
83	*/
84	static void
85	xmlTreeErr(int code, xmlNodePtr node, const char *extra)
86	{
87	const char *msg = NULL;
88
89	switch(code) {
90	case XML_TREE_INVALID_HEX:
91	msg = "invalid hexadecimal character value\n";
92	break;
93	case XML_TREE_INVALID_DEC:
94	msg = "invalid decimal character value\n";
95	break;
96	case XML_TREE_UNTERMINATED_ENTITY:
97	msg = "unterminated entity reference %15s\n";
98	break;
99	case XML_TREE_NOT_UTF8:
100	msg = "string is not in UTF-8\n";
101	break;
102	default:
103	msg = "unexpected error number\n";
104	}
105	__xmlSimpleError(XML_FROM_TREE, code, node, msg, extra);
106	}
107
108	/************************************************************************
109	* *
110	* A few static variables and macros *
111	* *
112	************************************************************************/
113	/* #undef xmlStringText */
114	const xmlChar xmlStringText[] = { 't', 'e', 'x', 't', 0 };
115	/* #undef xmlStringTextNoenc */
116	const xmlChar xmlStringTextNoenc[] =
117	{ 't', 'e', 'x', 't', 'n', 'o', 'e', 'n', 'c', 0 };
118	/* #undef xmlStringComment */
119	const xmlChar xmlStringComment[] = { 'c', 'o', 'm', 'm', 'e', 'n', 't', 0 };
120
121	static int xmlCompressMode = 0;
122	static int xmlCheckDTD = 1;
123
124	#define UPDATE_LAST_CHILD_AND_PARENT(n) if ((n) != NULL) { \
125	xmlNodePtr ulccur = (n)->children; \
126	if (ulccur == NULL) { \
127	(n)->last = NULL; \
128	} else { \
129	while (ulccur->next != NULL) { \
130	ulccur->parent = (n); \
131	ulccur = ulccur->next; \
132	} \
133	ulccur->parent = (n); \
134	(n)->last = ulccur; \
135	}}
136
137	#define IS_STR_XML(str) ((str != NULL) && (str[0] == 'x') && \
138	(str[1] == 'm') && (str[2] == 'l') && (str[3] == 0))
139
140	/* #define DEBUG_BUFFER */
141	/* #define DEBUG_TREE */
142
143	/************************************************************************
144	* *
145	* Functions to move to entities.c once the *
146	* API freeze is smoothen and they can be made public. *
147	* *
148	************************************************************************/
149	#include <libxml/hash.h>
150
151	#ifdef LIBXML_TREE_ENABLED
152	/**
153	* xmlGetEntityFromDtd:
154	* @dtd: A pointer to the DTD to search
155	* @name: The entity name
156	*
157	* Do an entity lookup in the DTD entity hash table and
158	* return the corresponding entity, if found.
159	*
160	* Returns A pointer to the entity structure or NULL if not found.
161	*/
162	static xmlEntityPtr
163	xmlGetEntityFromDtd(const xmlDtd dtd, const xmlChar name) {
164	xmlEntitiesTablePtr table;
165
166	if((dtd != NULL) && (dtd->entities != NULL)) {
167	table = (xmlEntitiesTablePtr) dtd->entities;
168	return((xmlEntityPtr) xmlHashLookup(table, name));
169	/* return(xmlGetEntityFromTable(table, name)); */
170	}
171	return(NULL);
172	}
173	/**
174	* xmlGetParameterEntityFromDtd:
175	* @dtd: A pointer to the DTD to search
176	* @name: The entity name
177	*
178	* Do an entity lookup in the DTD pararmeter entity hash table and
179	* return the corresponding entity, if found.
180	*
181	* Returns A pointer to the entity structure or NULL if not found.
182	*/
183	static xmlEntityPtr
184	xmlGetParameterEntityFromDtd(const xmlDtd dtd, const xmlChar name) {
185	xmlEntitiesTablePtr table;
186
187	if ((dtd != NULL) && (dtd->pentities != NULL)) {
188	table = (xmlEntitiesTablePtr) dtd->pentities;
189	return((xmlEntityPtr) xmlHashLookup(table, name));
190	/* return(xmlGetEntityFromTable(table, name)); */
191	}
192	return(NULL);
193	}
194	#endif /* LIBXML_TREE_ENABLED */
195
196	/************************************************************************
197	* *
198	* QName handling helper *
199	* *
200	************************************************************************/
201
202	/**
203	* xmlBuildQName:
204	* @ncname: the Name
205	* @prefix: the prefix
206	* @memory: preallocated memory
207	* @len: preallocated memory length
208	*
209	* Builds the QName @prefix:@ncname in @memory if there is enough space
210	* and prefix is not NULL nor empty, otherwise allocate a new string.
211	* If prefix is NULL or empty it returns ncname.
212	*
213	* Returns the new string which must be freed by the caller if different from
214	* @memory and @ncname or NULL in case of error
215	*/
216	xmlChar *
217	xmlBuildQName(const xmlChar ncname, const xmlChar prefix,
218	xmlChar *memory, int len) {
219	int lenn, lenp;
220	xmlChar *ret;
221
222	if (ncname == NULL) return(NULL);
223	if (prefix == NULL) return((xmlChar *) ncname);
224
225	lenn = strlen((char *) ncname);
226	lenp = strlen((char *) prefix);
227
228	if ((memory == NULL) \|\| (len < lenn + lenp + 2)) {
229	ret = (xmlChar *) xmlMallocAtomic(lenn + lenp + 2);
230	if (ret == NULL) {
231	xmlTreeErrMemory("building QName");
232	return(NULL);
233	}
234	} else {
235	ret = memory;
236	}
237	memcpy(&ret[0], prefix, lenp);
238	ret[lenp] = ':';
239	memcpy(&ret[lenp + 1], ncname, lenn);
240	ret[lenn + lenp + 1] = 0;
241	return(ret);
242	}
243
244	/**
245	* xmlSplitQName2:
246	* @name: the full QName
247	* @prefix: a xmlChar **
248	*
249	* parse an XML qualified name string
250	*
251	* [NS 5] QName ::= (Prefix ':')? LocalPart
252	*
253	* [NS 6] Prefix ::= NCName
254	*
255	* [NS 7] LocalPart ::= NCName
256	*
257	* Returns NULL if not a QName, otherwise the local part, and prefix
258	* is updated to get the Prefix if any.
259	*/
260
261	xmlChar *
262	xmlSplitQName2(const xmlChar name, xmlChar *prefix) {
263	int len = 0;
264	xmlChar *ret = NULL;
265
266	if (prefix == NULL) return(NULL);
267	*prefix = NULL;
268	if (name == NULL) return(NULL);
269
270	#ifndef XML_XML_NAMESPACE
271	/* xml: prefix is not really a namespace */
272	if ((name[0] == 'x') && (name[1] == 'm') &&
273	(name[2] == 'l') && (name[3] == ':'))
274	return(NULL);
275	#endif
276
277	/* nasty but valid */
278	if (name[0] == ':')
279	return(NULL);
280
281	/*
282	* we are not trying to validate but just to cut, and yes it will
283	* work even if this is as set of UTF-8 encoded chars
284	*/
285	while ((name[len] != 0) && (name[len] != ':'))
286	len++;
287
288	if (name[len] == 0)
289	return(NULL);
290
291	*prefix = xmlStrndup(name, len);
292	if (*prefix == NULL) {
293	xmlTreeErrMemory("QName split");
294	return(NULL);
295	}
296	ret = xmlStrdup(&name[len + 1]);
297	if (ret == NULL) {
298	xmlTreeErrMemory("QName split");
299	if (*prefix != NULL) {
300	xmlFree(*prefix);
301	*prefix = NULL;
302	}
303	return(NULL);
304	}
305
306	return(ret);
307	}
308
309	/**
310	* xmlSplitQName3:
311	* @name: the full QName
312	* @len: an int *
313	*
314	* parse an XML qualified name string,i
315	*
316	* returns NULL if it is not a Qualified Name, otherwise, update len
317	* with the length in byte of the prefix and return a pointer
318	* to the start of the name without the prefix
319	*/
320
321	const xmlChar *
322	xmlSplitQName3(const xmlChar name, int len) {
323	int l = 0;
324
325	if (name == NULL) return(NULL);
326	if (len == NULL) return(NULL);
327
328	/* nasty but valid */
329	if (name[0] == ':')
330	return(NULL);
331
332	/*
333	* we are not trying to validate but just to cut, and yes it will
334	* work even if this is as set of UTF-8 encoded chars
335	*/
336	while ((name[l] != 0) && (name[l] != ':'))
337	l++;
338
339	if (name[l] == 0)
340	return(NULL);
341
342	*len = l;
343
344	return(&name[l+1]);
345	}
346
347	/************************************************************************
348	* *
349	* Check Name, NCName and QName strings *
350	* *
351	************************************************************************/
352
353	#define CUR_SCHAR(s, l) xmlStringCurrentChar(NULL, s, &l)
354
355	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_XPATH_ENABLED) \|\| defined(LIBXML_SCHEMAS_ENABLED) \|\| defined(LIBXML_DEBUG_ENABLED) \|\| defined (LIBXML_HTML_ENABLED) \|\| defined(LIBXML_SAX1_ENABLED) \|\| defined(LIBXML_HTML_ENABLED) \|\| defined(LIBXML_WRITER_ENABLED) \|\| defined(LIBXML_DOCB_ENABLED) \|\| defined(LIBXML_LEGACY_ENABLED)
356	/**
357	* xmlValidateNCName:
358	* @value: the value to check
359	* @space: allow spaces in front and end of the string
360	*
361	* Check that a value conforms to the lexical space of NCName
362	*
363	* Returns 0 if this validates, a positive error code number otherwise
364	* and -1 in case of internal or API error.
365	*/
366	int
367	xmlValidateNCName(const xmlChar *value, int space) {
368	const xmlChar *cur = value;
369	int c,l;
370
371	if (value == NULL)
372	return(-1);
373
374	/*
375	* First quick algorithm for ASCII range
376	*/
377	if (space)
378	while (IS_BLANK_CH(*cur)) cur++;
379	if (((cur >= 'a') && (cur <= 'z')) \|\| ((cur >= 'A') && (cur <= 'Z')) \|\|
380	(*cur == '_'))
381	cur++;
382	else
383	goto try_complex;
384	while (((cur >= 'a') && (cur <= 'z')) \|\|
385	((cur >= 'A') && (cur <= 'Z')) \|\|
386	((cur >= '0') && (cur <= '9')) \|\|
387	(cur == '_') \|\| (cur == '-') \|\| (*cur == '.'))
388	cur++;
389	if (space)
390	while (IS_BLANK_CH(*cur)) cur++;
391	if (*cur == 0)
392	return(0);
393
394	try_complex:
395	/*
396	* Second check for chars outside the ASCII range
397	*/
398	cur = value;
399	c = CUR_SCHAR(cur, l);
400	if (space) {
401	while (IS_BLANK(c)) {
402	cur += l;
403	c = CUR_SCHAR(cur, l);
404	}
405	}
406	if ((!IS_LETTER(c)) && (c != '_'))
407	return(1);
408	cur += l;
409	c = CUR_SCHAR(cur, l);
410	while (IS_LETTER(c) \|\| IS_DIGIT(c) \|\| (c == '.') \|\|
411	(c == '-') \|\| (c == '_') \|\| IS_COMBINING(c) \|\|
412	IS_EXTENDER(c)) {
413	cur += l;
414	c = CUR_SCHAR(cur, l);
415	}
416	if (space) {
417	while (IS_BLANK(c)) {
418	cur += l;
419	c = CUR_SCHAR(cur, l);
420	}
421	}
422	if (c != 0)
423	return(1);
424
425	return(0);
426	}
427	#endif
428
429	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_SCHEMAS_ENABLED)
430	/**
431	* xmlValidateQName:
432	* @value: the value to check
433	* @space: allow spaces in front and end of the string
434	*
435	* Check that a value conforms to the lexical space of QName
436	*
437	* Returns 0 if this validates, a positive error code number otherwise
438	* and -1 in case of internal or API error.
439	*/
440	int
441	xmlValidateQName(const xmlChar *value, int space) {
442	const xmlChar *cur = value;
443	int c,l;
444
445	if (value == NULL)
446	return(-1);
447	/*
448	* First quick algorithm for ASCII range
449	*/
450	if (space)
451	while (IS_BLANK_CH(*cur)) cur++;
452	if (((cur >= 'a') && (cur <= 'z')) \|\| ((cur >= 'A') && (cur <= 'Z')) \|\|
453	(*cur == '_'))
454	cur++;
455	else
456	goto try_complex;
457	while (((cur >= 'a') && (cur <= 'z')) \|\|
458	((cur >= 'A') && (cur <= 'Z')) \|\|
459	((cur >= '0') && (cur <= '9')) \|\|
460	(cur == '_') \|\| (cur == '-') \|\| (*cur == '.'))
461	cur++;
462	if (*cur == ':') {
463	cur++;
464	if (((cur >= 'a') && (cur <= 'z')) \|\|
465	((cur >= 'A') && (cur <= 'Z')) \|\|
466	(*cur == '_'))
467	cur++;
468	else
469	goto try_complex;
470	while (((cur >= 'a') && (cur <= 'z')) \|\|
471	((cur >= 'A') && (cur <= 'Z')) \|\|
472	((cur >= '0') && (cur <= '9')) \|\|
473	(cur == '_') \|\| (cur == '-') \|\| (*cur == '.'))
474	cur++;
475	}
476	if (space)
477	while (IS_BLANK_CH(*cur)) cur++;
478	if (*cur == 0)
479	return(0);
480
481	try_complex:
482	/*
483	* Second check for chars outside the ASCII range
484	*/
485	cur = value;
486	c = CUR_SCHAR(cur, l);
487	if (space) {
488	while (IS_BLANK(c)) {
489	cur += l;
490	c = CUR_SCHAR(cur, l);
491	}
492	}
493	if ((!IS_LETTER(c)) && (c != '_'))
494	return(1);
495	cur += l;
496	c = CUR_SCHAR(cur, l);
497	while (IS_LETTER(c) \|\| IS_DIGIT(c) \|\| (c == '.') \|\|
498	(c == '-') \|\| (c == '_') \|\| IS_COMBINING(c) \|\|
499	IS_EXTENDER(c)) {
500	cur += l;
501	c = CUR_SCHAR(cur, l);
502	}
503	if (c == ':') {
504	cur += l;
505	c = CUR_SCHAR(cur, l);
506	if ((!IS_LETTER(c)) && (c != '_'))
507	return(1);
508	cur += l;
509	c = CUR_SCHAR(cur, l);
510	while (IS_LETTER(c) \|\| IS_DIGIT(c) \|\| (c == '.') \|\|
511	(c == '-') \|\| (c == '_') \|\| IS_COMBINING(c) \|\|
512	IS_EXTENDER(c)) {
513	cur += l;
514	c = CUR_SCHAR(cur, l);
515	}
516	}
517	if (space) {
518	while (IS_BLANK(c)) {
519	cur += l;
520	c = CUR_SCHAR(cur, l);
521	}
522	}
523	if (c != 0)
524	return(1);
525	return(0);
526	}
527
528	/**
529	* xmlValidateName:
530	* @value: the value to check
531	* @space: allow spaces in front and end of the string
532	*
533	* Check that a value conforms to the lexical space of Name
534	*
535	* Returns 0 if this validates, a positive error code number otherwise
536	* and -1 in case of internal or API error.
537	*/
538	int
539	xmlValidateName(const xmlChar *value, int space) {
540	const xmlChar *cur = value;
541	int c,l;
542
543	if (value == NULL)
544	return(-1);
545	/*
546	* First quick algorithm for ASCII range
547	*/
548	if (space)
549	while (IS_BLANK_CH(*cur)) cur++;
550	if (((cur >= 'a') && (cur <= 'z')) \|\| ((cur >= 'A') && (cur <= 'Z')) \|\|
551	(cur == '_') \|\| (cur == ':'))
552	cur++;
553	else
554	goto try_complex;
555	while (((cur >= 'a') && (cur <= 'z')) \|\|
556	((cur >= 'A') && (cur <= 'Z')) \|\|
557	((cur >= '0') && (cur <= '9')) \|\|
558	(cur == '_') \|\| (cur == '-') \|\| (cur == '.') \|\| (cur == ':'))
559	cur++;
560	if (space)
561	while (IS_BLANK_CH(*cur)) cur++;
562	if (*cur == 0)
563	return(0);
564
565	try_complex:
566	/*
567	* Second check for chars outside the ASCII range
568	*/
569	cur = value;
570	c = CUR_SCHAR(cur, l);
571	if (space) {
572	while (IS_BLANK(c)) {
573	cur += l;
574	c = CUR_SCHAR(cur, l);
575	}
576	}
577	if ((!IS_LETTER(c)) && (c != '_') && (c != ':'))
578	return(1);
579	cur += l;
580	c = CUR_SCHAR(cur, l);
581	while (IS_LETTER(c) \|\| IS_DIGIT(c) \|\| (c == '.') \|\| (c == ':') \|\|
582	(c == '-') \|\| (c == '_') \|\| IS_COMBINING(c) \|\| IS_EXTENDER(c)) {
583	cur += l;
584	c = CUR_SCHAR(cur, l);
585	}
586	if (space) {
587	while (IS_BLANK(c)) {
588	cur += l;
589	c = CUR_SCHAR(cur, l);
590	}
591	}
592	if (c != 0)
593	return(1);
594	return(0);
595	}
596
597	/**
598	* xmlValidateNMToken:
599	* @value: the value to check
600	* @space: allow spaces in front and end of the string
601	*
602	* Check that a value conforms to the lexical space of NMToken
603	*
604	* Returns 0 if this validates, a positive error code number otherwise
605	* and -1 in case of internal or API error.
606	*/
607	int
608	xmlValidateNMToken(const xmlChar *value, int space) {
609	const xmlChar *cur = value;
610	int c,l;
611
612	if (value == NULL)
613	return(-1);
614	/*
615	* First quick algorithm for ASCII range
616	*/
617	if (space)
618	while (IS_BLANK_CH(*cur)) cur++;
619	if (((cur >= 'a') && (cur <= 'z')) \|\|
620	((cur >= 'A') && (cur <= 'Z')) \|\|
621	((cur >= '0') && (cur <= '9')) \|\|
622	(cur == '_') \|\| (cur == '-') \|\| (cur == '.') \|\| (cur == ':'))
623	cur++;
624	else
625	goto try_complex;
626	while (((cur >= 'a') && (cur <= 'z')) \|\|
627	((cur >= 'A') && (cur <= 'Z')) \|\|
628	((cur >= '0') && (cur <= '9')) \|\|
629	(cur == '_') \|\| (cur == '-') \|\| (cur == '.') \|\| (cur == ':'))
630	cur++;
631	if (space)
632	while (IS_BLANK_CH(*cur)) cur++;
633	if (*cur == 0)
634	return(0);
635
636	try_complex:
637	/*
638	* Second check for chars outside the ASCII range
639	*/
640	cur = value;
641	c = CUR_SCHAR(cur, l);
642	if (space) {
643	while (IS_BLANK(c)) {
644	cur += l;
645	c = CUR_SCHAR(cur, l);
646	}
647	}
648	if (!(IS_LETTER(c) \|\| IS_DIGIT(c) \|\| (c == '.') \|\| (c == ':') \|\|
649	(c == '-') \|\| (c == '_') \|\| IS_COMBINING(c) \|\| IS_EXTENDER(c)))
650	return(1);
651	cur += l;
652	c = CUR_SCHAR(cur, l);
653	while (IS_LETTER(c) \|\| IS_DIGIT(c) \|\| (c == '.') \|\| (c == ':') \|\|
654	(c == '-') \|\| (c == '_') \|\| IS_COMBINING(c) \|\| IS_EXTENDER(c)) {
655	cur += l;
656	c = CUR_SCHAR(cur, l);
657	}
658	if (space) {
659	while (IS_BLANK(c)) {
660	cur += l;
661	c = CUR_SCHAR(cur, l);
662	}
663	}
664	if (c != 0)
665	return(1);
666	return(0);
667	}
668	#endif /* LIBXML_TREE_ENABLED */
669
670	/************************************************************************
671	* *
672	* Allocation and deallocation of basic structures *
673	* *
674	************************************************************************/
675
676	/**
677	* xmlSetBufferAllocationScheme:
678	* @scheme: allocation method to use
679	*
680	* Set the buffer allocation method. Types are
681	* XML_BUFFER_ALLOC_EXACT - use exact sizes, keeps memory usage down
682	* XML_BUFFER_ALLOC_DOUBLEIT - double buffer when extra needed,
683	* improves performance
684	*/
685	void
686	xmlSetBufferAllocationScheme(xmlBufferAllocationScheme scheme) {
687	if ((scheme == XML_BUFFER_ALLOC_EXACT) \|\|
688	(scheme == XML_BUFFER_ALLOC_DOUBLEIT) \|\|
689	(scheme == XML_BUFFER_ALLOC_HYBRID))
690	xmlBufferAllocScheme = scheme;
691	}
692
693	/**
694	* xmlGetBufferAllocationScheme:
695	*
696	* Types are
697	* XML_BUFFER_ALLOC_EXACT - use exact sizes, keeps memory usage down
698	* XML_BUFFER_ALLOC_DOUBLEIT - double buffer when extra needed,
699	* improves performance
700	* XML_BUFFER_ALLOC_HYBRID - use exact sizes on small strings to keep memory usage tight
701	* in normal usage, and doubleit on large strings to avoid
702	* pathological performance.
703	*
704	* Returns the current allocation scheme
705	*/
706	xmlBufferAllocationScheme
707	xmlGetBufferAllocationScheme(void) {
708	return(xmlBufferAllocScheme);
709	}
710
711	/**
712	* xmlNewNs:
713	* @node: the element carrying the namespace
714	* @href: the URI associated
715	* @prefix: the prefix for the namespace
716	*
717	* Creation of a new Namespace. This function will refuse to create
718	* a namespace with a similar prefix than an existing one present on this
719	* node.
720	* Note that for a default namespace, @prefix should be NULL.
721	*
722	* We use href==NULL in the case of an element creation where the namespace
723	* was not defined.
724	*
725	* Returns a new namespace pointer or NULL
726	*/
727	xmlNsPtr
728	xmlNewNs(xmlNodePtr node, const xmlChar href, const xmlChar prefix) {
729	xmlNsPtr cur;
730
731	if ((node != NULL) && (node->type != XML_ELEMENT_NODE))
732	return(NULL);
733
734	if ((prefix != NULL) && (xmlStrEqual(prefix, BAD_CAST "xml"))) {
735	/* xml namespace is predefined, no need to add it */
736	if (xmlStrEqual(href, XML_XML_NAMESPACE))
737	return(NULL);
738
739	/*
740	* Problem, this is an attempt to bind xml prefix to a wrong
741	* namespace, which breaks
742	* Namespace constraint: Reserved Prefixes and Namespace Names
743	* from XML namespace. But documents authors may not care in
744	* their context so let's proceed.
745	*/
746	}
747
748	/*
749	* Allocate a new Namespace and fill the fields.
750	*/
751	cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
752	if (cur == NULL) {
753	xmlTreeErrMemory("building namespace");
754	return(NULL);
755	}
756	memset(cur, 0, sizeof(xmlNs));
757	cur->type = XML_LOCAL_NAMESPACE;
758
759	if (href != NULL)
760	cur->href = xmlStrdup(href);
761	if (prefix != NULL)
762	cur->prefix = xmlStrdup(prefix);
763
764	/*
765	* Add it at the end to preserve parsing order ...
766	* and checks for existing use of the prefix
767	*/
768	if (node != NULL) {
769	if (node->nsDef == NULL) {
770	node->nsDef = cur;
771	} else {
772	xmlNsPtr prev = node->nsDef;
773
774	if (((prev->prefix == NULL) && (cur->prefix == NULL)) \|\|
775	(xmlStrEqual(prev->prefix, cur->prefix))) {
776	xmlFreeNs(cur);
777	return(NULL);
778	}
779	while (prev->next != NULL) {
780	prev = prev->next;
781	if (((prev->prefix == NULL) && (cur->prefix == NULL)) \|\|
782	(xmlStrEqual(prev->prefix, cur->prefix))) {
783	xmlFreeNs(cur);
784	return(NULL);
785	}
786	}
787	prev->next = cur;
788	}
789	}
790	return(cur);
791	}
792
793	/**
794	* xmlSetNs:
795	* @node: a node in the document
796	* @ns: a namespace pointer
797	*
798	* Associate a namespace to a node, a posteriori.
799	*/
800	void
801	xmlSetNs(xmlNodePtr node, xmlNsPtr ns) {
802	if (node == NULL) {
803	#ifdef DEBUG_TREE
804	xmlGenericError(xmlGenericErrorContext,
805	"xmlSetNs: node == NULL\n");
806	#endif
807	return;
808	}
809	if ((node->type == XML_ELEMENT_NODE) \|\|
810	(node->type == XML_ATTRIBUTE_NODE))
811	node->ns = ns;
812	}
813
814	/**
815	* xmlFreeNs:
816	* @cur: the namespace pointer
817	*
818	* Free up the structures associated to a namespace
819	*/
820	void
821	xmlFreeNs(xmlNsPtr cur) {
822	if (cur == NULL) {
823	#ifdef DEBUG_TREE
824	xmlGenericError(xmlGenericErrorContext,
825	"xmlFreeNs : ns == NULL\n");
826	#endif
827	return;
828	}
829	if (cur->href != NULL) xmlFree((char *) cur->href);
830	if (cur->prefix != NULL) xmlFree((char *) cur->prefix);
831	xmlFree(cur);
832	}
833
834	/**
835	* xmlFreeNsList:
836	* @cur: the first namespace pointer
837	*
838	* Free up all the structures associated to the chained namespaces.
839	*/
840	void
841	xmlFreeNsList(xmlNsPtr cur) {
842	xmlNsPtr next;
843	if (cur == NULL) {
844	#ifdef DEBUG_TREE
845	xmlGenericError(xmlGenericErrorContext,
846	"xmlFreeNsList : ns == NULL\n");
847	#endif
848	return;
849	}
850	while (cur != NULL) {
851	next = cur->next;
852	xmlFreeNs(cur);
853	cur = next;
854	}
855	}
856
857	/**
858	* xmlNewDtd:
859	* @doc: the document pointer
860	* @name: the DTD name
861	* @ExternalID: the external ID
862	* @SystemID: the system ID
863	*
864	* Creation of a new DTD for the external subset. To create an
865	* internal subset, use xmlCreateIntSubset().
866	*
867	* Returns a pointer to the new DTD structure
868	*/
869	xmlDtdPtr
870	xmlNewDtd(xmlDocPtr doc, const xmlChar *name,
871	const xmlChar ExternalID, const xmlChar SystemID) {
872	xmlDtdPtr cur;
873
874	if ((doc != NULL) && (doc->extSubset != NULL)) {
875	#ifdef DEBUG_TREE
876	xmlGenericError(xmlGenericErrorContext,
877	"xmlNewDtd(%s): document %s already have a DTD %s\n",
878	/* !!! / (char ) name, doc->name,
879	/* !!! / (char )doc->extSubset->name);
880	#endif
881	return(NULL);
882	}
883
884	/*
885	* Allocate a new DTD and fill the fields.
886	*/
887	cur = (xmlDtdPtr) xmlMalloc(sizeof(xmlDtd));
888	if (cur == NULL) {
889	xmlTreeErrMemory("building DTD");
890	return(NULL);
891	}
892	memset(cur, 0 , sizeof(xmlDtd));
893	cur->type = XML_DTD_NODE;
894
895	if (name != NULL)
896	cur->name = xmlStrdup(name);
897	if (ExternalID != NULL)
898	cur->ExternalID = xmlStrdup(ExternalID);
899	if (SystemID != NULL)
900	cur->SystemID = xmlStrdup(SystemID);
901	if (doc != NULL)
902	doc->extSubset = cur;
903	cur->doc = doc;
904
905	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
906	xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
907	return(cur);
908	}
909
910	/**
911	* xmlGetIntSubset:
912	* @doc: the document pointer
913	*
914	* Get the internal subset of a document
915	* Returns a pointer to the DTD structure or NULL if not found
916	*/
917
918	xmlDtdPtr
919	xmlGetIntSubset(const xmlDoc *doc) {
920	xmlNodePtr cur;
921
922	if (doc == NULL)
923	return(NULL);
924	cur = doc->children;
925	while (cur != NULL) {
926	if (cur->type == XML_DTD_NODE)
927	return((xmlDtdPtr) cur);
928	cur = cur->next;
929	}
930	return((xmlDtdPtr) doc->intSubset);
931	}
932
933	/**
934	* xmlCreateIntSubset:
935	* @doc: the document pointer
936	* @name: the DTD name
937	* @ExternalID: the external (PUBLIC) ID
938	* @SystemID: the system ID
939	*
940	* Create the internal subset of a document
941	* Returns a pointer to the new DTD structure
942	*/
943	xmlDtdPtr
944	xmlCreateIntSubset(xmlDocPtr doc, const xmlChar *name,
945	const xmlChar ExternalID, const xmlChar SystemID) {
946	xmlDtdPtr cur;
947
948	if ((doc != NULL) && (xmlGetIntSubset(doc) != NULL)) {
949	#ifdef DEBUG_TREE
950	xmlGenericError(xmlGenericErrorContext,
951
952	"xmlCreateIntSubset(): document %s already have an internal subset\n",
953	doc->name);
954	#endif
955	return(NULL);
956	}
957
958	/*
959	* Allocate a new DTD and fill the fields.
960	*/
961	cur = (xmlDtdPtr) xmlMalloc(sizeof(xmlDtd));
962	if (cur == NULL) {
963	xmlTreeErrMemory("building internal subset");
964	return(NULL);
965	}
966	memset(cur, 0, sizeof(xmlDtd));
967	cur->type = XML_DTD_NODE;
968
969	if (name != NULL) {
970	cur->name = xmlStrdup(name);
971	if (cur->name == NULL) {
972	xmlTreeErrMemory("building internal subset");
973	xmlFree(cur);
974	return(NULL);
975	}
976	}
977	if (ExternalID != NULL) {
978	cur->ExternalID = xmlStrdup(ExternalID);
979	if (cur->ExternalID == NULL) {
980	xmlTreeErrMemory("building internal subset");
981	if (cur->name != NULL)
982	xmlFree((char *)cur->name);
983	xmlFree(cur);
984	return(NULL);
985	}
986	}
987	if (SystemID != NULL) {
988	cur->SystemID = xmlStrdup(SystemID);
989	if (cur->SystemID == NULL) {
990	xmlTreeErrMemory("building internal subset");
991	if (cur->name != NULL)
992	xmlFree((char *)cur->name);
993	if (cur->ExternalID != NULL)
994	xmlFree((char *)cur->ExternalID);
995	xmlFree(cur);
996	return(NULL);
997	}
998	}
999	if (doc != NULL) {
1000	doc->intSubset = cur;
1001	cur->parent = doc;
1002	cur->doc = doc;
1003	if (doc->children == NULL) {
1004	doc->children = (xmlNodePtr) cur;
1005	doc->last = (xmlNodePtr) cur;
1006	} else {
1007	if (doc->type == XML_HTML_DOCUMENT_NODE) {
1008	xmlNodePtr prev;
1009
1010	prev = doc->children;
1011	prev->prev = (xmlNodePtr) cur;
1012	cur->next = prev;
1013	doc->children = (xmlNodePtr) cur;
1014	} else {
1015	xmlNodePtr next;
1016
1017	next = doc->children;
1018	while ((next != NULL) && (next->type != XML_ELEMENT_NODE))
1019	next = next->next;
1020	if (next == NULL) {
1021	cur->prev = doc->last;
1022	cur->prev->next = (xmlNodePtr) cur;
1023	cur->next = NULL;
1024	doc->last = (xmlNodePtr) cur;
1025	} else {
1026	cur->next = next;
1027	cur->prev = next->prev;
1028	if (cur->prev == NULL)
1029	doc->children = (xmlNodePtr) cur;
1030	else
1031	cur->prev->next = (xmlNodePtr) cur;
1032	next->prev = (xmlNodePtr) cur;
1033	}
1034	}
1035	}
1036	}
1037
1038	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
1039	xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
1040	return(cur);
1041	}
1042
1043	/**
1044	* DICT_FREE:
1045	* @str: a string
1046	*
1047	* Free a string if it is not owned by the "dict" dictionnary in the
1048	* current scope
1049	*/
1050	#define DICT_FREE(str) \
1051	if ((str) && ((!dict) \|\| \
1052	(xmlDictOwns(dict, (const xmlChar *)(str)) == 0))) \
1053	xmlFree((char *)(str));
1054
1055
1056	/**
1057	* DICT_COPY:
1058	* @str: a string
1059	*
1060	* Copy a string using a "dict" dictionnary in the current scope,
1061	* if availabe.
1062	*/
1063	#define DICT_COPY(str, cpy) \
1064	if (str) { \
1065	if (dict) { \
1066	if (xmlDictOwns(dict, (const xmlChar *)(str))) \
1067	cpy = (xmlChar *) (str); \
1068	else \
1069	cpy = (xmlChar ) xmlDictLookup((dict), (const xmlChar )(str), -1); \
1070	} else \
1071	cpy = xmlStrdup((const xmlChar *)(str)); }
1072
1073	/**
1074	* DICT_CONST_COPY:
1075	* @str: a string
1076	*
1077	* Copy a string using a "dict" dictionnary in the current scope,
1078	* if availabe.
1079	*/
1080	#define DICT_CONST_COPY(str, cpy) \
1081	if (str) { \
1082	if (dict) { \
1083	if (xmlDictOwns(dict, (const xmlChar *)(str))) \
1084	cpy = (const xmlChar *) (str); \
1085	else \
1086	cpy = xmlDictLookup((dict), (const xmlChar *)(str), -1); \
1087	} else \
1088	cpy = (const xmlChar ) xmlStrdup((const xmlChar )(str)); }
1089
1090
1091	/**
1092	* xmlFreeDtd:
1093	* @cur: the DTD structure to free up
1094	*
1095	* Free a DTD structure.
1096	*/
1097	void
1098	xmlFreeDtd(xmlDtdPtr cur) {
1099	xmlDictPtr dict = NULL;
1100
1101	if (cur == NULL) {
1102	return;
1103	}
1104	if (cur->doc != NULL) dict = cur->doc->dict;
1105
1106	if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
1107	xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);
1108
1109	if (cur->children != NULL) {
1110	xmlNodePtr next, c = cur->children;
1111
1112	/*
1113	* Cleanup all nodes which are not part of the specific lists
1114	* of notations, elements, attributes and entities.
1115	*/
1116	while (c != NULL) {
1117	next = c->next;
1118	if ((c->type != XML_NOTATION_NODE) &&
1119	(c->type != XML_ELEMENT_DECL) &&
1120	(c->type != XML_ATTRIBUTE_DECL) &&
1121	(c->type != XML_ENTITY_DECL)) {
1122	xmlUnlinkNode(c);
1123	xmlFreeNode(c);
1124	}
1125	c = next;
1126	}
1127	}
1128	DICT_FREE(cur->name)
1129	DICT_FREE(cur->SystemID)
1130	DICT_FREE(cur->ExternalID)
1131	/* TODO !!! */
1132	if (cur->notations != NULL)
1133	xmlFreeNotationTable((xmlNotationTablePtr) cur->notations);
1134
1135	if (cur->elements != NULL)
1136	xmlFreeElementTable((xmlElementTablePtr) cur->elements);
1137	if (cur->attributes != NULL)
1138	xmlFreeAttributeTable((xmlAttributeTablePtr) cur->attributes);
1139	if (cur->entities != NULL)
1140	xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->entities);
1141	if (cur->pentities != NULL)
1142	xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->pentities);
1143
1144	xmlFree(cur);
1145	}
1146
1147	/**
1148	* xmlNewDoc:
1149	* @version: xmlChar string giving the version of XML "1.0"
1150	*
1151	* Creates a new XML document
1152	*
1153	* Returns a new document
1154	*/
1155	xmlDocPtr
1156	xmlNewDoc(const xmlChar *version) {
1157	xmlDocPtr cur;
1158
1159	if (version == NULL)
1160	version = (const xmlChar *) "1.0";
1161
1162	/*
1163	* Allocate a new document and fill the fields.
1164	*/
1165	cur = (xmlDocPtr) xmlMalloc(sizeof(xmlDoc));
1166	if (cur == NULL) {
1167	xmlTreeErrMemory("building doc");
1168	return(NULL);
1169	}
1170	memset(cur, 0, sizeof(xmlDoc));
1171	cur->type = XML_DOCUMENT_NODE;
1172
1173	cur->version = xmlStrdup(version);
1174	if (cur->version == NULL) {
1175	xmlTreeErrMemory("building doc");
1176	xmlFree(cur);
1177	return(NULL);
1178	}
1179	cur->standalone = -1;
1180	cur->compression = -1; /* not initialized */
1181	cur->doc = cur;
1182	cur->parseFlags = 0;
1183	cur->properties = XML_DOC_USERBUILT;
1184	/*
1185	* The in memory encoding is always UTF8
1186	* This field will never change and would
1187	* be obsolete if not for binary compatibility.
1188	*/
1189	cur->charset = XML_CHAR_ENCODING_UTF8;
1190
1191	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
1192	xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
1193	return(cur);
1194	}
1195
1196	/**
1197	* xmlFreeDoc:
1198	* @cur: pointer to the document
1199	*
1200	* Free up all the structures used by a document, tree included.
1201	*/
1202	void
1203	xmlFreeDoc(xmlDocPtr cur) {
1204	xmlDtdPtr extSubset, intSubset;
1205	xmlDictPtr dict = NULL;
1206
1207	if (cur == NULL) {
1208	#ifdef DEBUG_TREE
1209	xmlGenericError(xmlGenericErrorContext,
1210	"xmlFreeDoc : document == NULL\n");
1211	#endif
1212	return;
1213	}
1214	#ifdef LIBXML_DEBUG_RUNTIME
1215	#ifdef LIBXML_DEBUG_ENABLED
1216	xmlDebugCheckDocument(stderr, cur);
1217	#endif
1218	#endif
1219
1220	if (cur != NULL) dict = cur->dict;
1221
1222	if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
1223	xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);
1224
1225	/*
1226	* Do this before freeing the children list to avoid ID lookups
1227	*/
1228	if (cur->ids != NULL) xmlFreeIDTable((xmlIDTablePtr) cur->ids);
1229	cur->ids = NULL;
1230	if (cur->refs != NULL) xmlFreeRefTable((xmlRefTablePtr) cur->refs);
1231	cur->refs = NULL;
1232	extSubset = cur->extSubset;
1233	intSubset = cur->intSubset;
1234	if (intSubset == extSubset)
1235	extSubset = NULL;
1236	if (extSubset != NULL) {
1237	xmlUnlinkNode((xmlNodePtr) cur->extSubset);
1238	cur->extSubset = NULL;
1239	xmlFreeDtd(extSubset);
1240	}
1241	if (intSubset != NULL) {
1242	xmlUnlinkNode((xmlNodePtr) cur->intSubset);
1243	cur->intSubset = NULL;
1244	xmlFreeDtd(intSubset);
1245	}
1246
1247	if (cur->children != NULL) xmlFreeNodeList(cur->children);
1248	if (cur->oldNs != NULL) xmlFreeNsList(cur->oldNs);
1249
1250	DICT_FREE(cur->version)
1251	DICT_FREE(cur->name)
1252	DICT_FREE(cur->encoding)
1253	DICT_FREE(cur->URL)
1254	xmlFree(cur);
1255	if (dict) xmlDictFree(dict);
1256	}
1257
1258	/**
1259	* xmlStringLenGetNodeList:
1260	* @doc: the document
1261	* @value: the value of the text
1262	* @len: the length of the string value
1263	*
1264	* Parse the value string and build the node list associated. Should
1265	* produce a flat tree with only TEXTs and ENTITY_REFs.
1266	* Returns a pointer to the first child
1267	*/
1268	xmlNodePtr
1269	xmlStringLenGetNodeList(const xmlDoc doc, const xmlChar value, int len) {
1270	xmlNodePtr ret = NULL, last = NULL;
1271	xmlNodePtr node;
1272	xmlChar *val;
1273	const xmlChar cur = value, end = cur + len;
1274	const xmlChar *q;
1275	xmlEntityPtr ent;
1276	xmlBufPtr buf;
1277
1278	if (value == NULL) return(NULL);
1279
1280	buf = xmlBufCreateSize(0);
1281	if (buf == NULL) return(NULL);
1282	xmlBufSetAllocationScheme(buf, XML_BUFFER_ALLOC_HYBRID);
1283
1284	q = cur;
1285	while ((cur < end) && (*cur != 0)) {
1286	if (cur[0] == '&') {
1287	int charval = 0;
1288	xmlChar tmp;
1289
1290	/*
1291	* Save the current text.
1292	*/
1293	if (cur != q) {
1294	if (xmlBufAdd(buf, q, cur - q))
1295	goto out;
1296	}
1297	q = cur;
1298	if ((cur + 2 < end) && (cur[1] == '#') && (cur[2] == 'x')) {
1299	cur += 3;
1300	if (cur < end)
1301	tmp = *cur;
1302	else
1303	tmp = 0;
1304	while (tmp != ';') { /* Non input consuming loop */
1305	if ((tmp >= '0') && (tmp <= '9'))
1306	charval = charval * 16 + (tmp - '0');
1307	else if ((tmp >= 'a') && (tmp <= 'f'))
1308	charval = charval * 16 + (tmp - 'a') + 10;
1309	else if ((tmp >= 'A') && (tmp <= 'F'))
1310	charval = charval * 16 + (tmp - 'A') + 10;
1311	else {
1312	xmlTreeErr(XML_TREE_INVALID_HEX, (xmlNodePtr) doc,
1313	NULL);
1314	charval = 0;
1315	break;
1316	}
1317	cur++;
1318	if (cur < end)
1319	tmp = *cur;
1320	else
1321	tmp = 0;
1322	}
1323	if (tmp == ';')
1324	cur++;
1325	q = cur;
1326	} else if ((cur + 1 < end) && (cur[1] == '#')) {
1327	cur += 2;
1328	if (cur < end)
1329	tmp = *cur;
1330	else
1331	tmp = 0;
1332	while (tmp != ';') { /* Non input consuming loops */
1333	if ((tmp >= '0') && (tmp <= '9'))
1334	charval = charval * 10 + (tmp - '0');
1335	else {
1336	xmlTreeErr(XML_TREE_INVALID_DEC, (xmlNodePtr) doc,
1337	NULL);
1338	charval = 0;
1339	break;
1340	}
1341	cur++;
1342	if (cur < end)
1343	tmp = *cur;
1344	else
1345	tmp = 0;
1346	}
1347	if (tmp == ';')
1348	cur++;
1349	q = cur;
1350	} else {
1351	/*
1352	* Read the entity string
1353	*/
1354	cur++;
1355	q = cur;
1356	while ((cur < end) && (cur != 0) && (cur != ';')) cur++;
1357	if ((cur >= end) \|\| (*cur == 0)) {
1358	xmlTreeErr(XML_TREE_UNTERMINATED_ENTITY, (xmlNodePtr) doc,
1359	(const char *) q);
1360	goto out;
1361	}
1362	if (cur != q) {
1363	/*
1364	* Predefined entities don't generate nodes
1365	*/
1366	val = xmlStrndup(q, cur - q);
1367	ent = xmlGetDocEntity(doc, val);
1368	if ((ent != NULL) &&
1369	(ent->etype == XML_INTERNAL_PREDEFINED_ENTITY)) {
1370
1371	if (xmlBufCat(buf, ent->content))
1372	goto out;
1373
1374	} else {
1375	/*
1376	* Flush buffer so far
1377	*/
1378	if (!xmlBufIsEmpty(buf)) {
1379	node = xmlNewDocText(doc, NULL);
1380	if (node == NULL) {
1381	if (val != NULL) xmlFree(val);
1382	goto out;
1383	}
1384	node->content = xmlBufDetach(buf);
1385
1386	if (last == NULL) {
1387	last = ret = node;
1388	} else {
1389	last = xmlAddNextSibling(last, node);
1390	}
1391	}
1392
1393	/*
1394	* Create a new REFERENCE_REF node
1395	*/
1396	node = xmlNewReference(doc, val);
1397	if (node == NULL) {
1398	if (val != NULL) xmlFree(val);
1399	goto out;
1400	}
1401	else if ((ent != NULL) && (ent->children == NULL)) {
1402	xmlNodePtr temp;
1403
1404	ent->children = xmlStringGetNodeList(doc,
1405	(const xmlChar*)node->content);
1406	ent->owner = 1;
1407	temp = ent->children;
1408	while (temp) {
1409	temp->parent = (xmlNodePtr)ent;
1410	ent->last = temp;
1411	temp = temp->next;
1412	}
1413	}
1414	if (last == NULL) {
1415	last = ret = node;
1416	} else {
1417	last = xmlAddNextSibling(last, node);
1418	}
1419	}
1420	xmlFree(val);
1421	}
1422	cur++;
1423	q = cur;
1424	}
1425	if (charval != 0) {
1426	xmlChar buffer[10];
1427	int l;
1428
1429	l = xmlCopyCharMultiByte(buffer, charval);
1430	buffer[l] = 0;
1431
1432	if (xmlBufCat(buf, buffer))
1433	goto out;
1434	charval = 0;
1435	}
1436	} else
1437	cur++;
1438	}
1439
1440	if (cur != q) {
1441	/*
1442	* Handle the last piece of text.
1443	*/
1444	if (xmlBufAdd(buf, q, cur - q))
1445	goto out;
1446	}
1447
1448	if (!xmlBufIsEmpty(buf)) {
1449	node = xmlNewDocText(doc, NULL);
1450	if (node == NULL) goto out;
1451	node->content = xmlBufDetach(buf);
1452
1453	if (last == NULL) {
1454	last = ret = node;
1455	} else {
1456	last = xmlAddNextSibling(last, node);
1457	}
1458	} else if (ret == NULL) {
1459	ret = xmlNewDocText(doc, BAD_CAST "");
1460	}
1461
1462	out:
1463	xmlBufFree(buf);
1464	return(ret);
1465	}
1466
1467	/**
1468	* xmlStringGetNodeList:
1469	* @doc: the document
1470	* @value: the value of the attribute
1471	*
1472	* Parse the value string and build the node list associated. Should
1473	* produce a flat tree with only TEXTs and ENTITY_REFs.
1474	* Returns a pointer to the first child
1475	*/
1476	xmlNodePtr
1477	xmlStringGetNodeList(const xmlDoc doc, const xmlChar value) {
1478	xmlNodePtr ret = NULL, last = NULL;
1479	xmlNodePtr node;
1480	xmlChar *val;
1481	const xmlChar *cur = value;
1482	const xmlChar *q;
1483	xmlEntityPtr ent;
1484	xmlBufPtr buf;
1485
1486	if (value == NULL) return(NULL);
1487
1488	buf = xmlBufCreateSize(0);
1489	if (buf == NULL) return(NULL);
1490	xmlBufSetAllocationScheme(buf, XML_BUFFER_ALLOC_HYBRID);
1491
1492	q = cur;
1493	while (*cur != 0) {
1494	if (cur[0] == '&') {
1495	int charval = 0;
1496	xmlChar tmp;
1497
1498	/*
1499	* Save the current text.
1500	*/
1501	if (cur != q) {
1502	if (xmlBufAdd(buf, q, cur - q))
1503	goto out;
1504	}
1505	q = cur;
1506	if ((cur[1] == '#') && (cur[2] == 'x')) {
1507	cur += 3;
1508	tmp = *cur;
1509	while (tmp != ';') { /* Non input consuming loop */
1510	if ((tmp >= '0') && (tmp <= '9'))
1511	charval = charval * 16 + (tmp - '0');
1512	else if ((tmp >= 'a') && (tmp <= 'f'))
1513	charval = charval * 16 + (tmp - 'a') + 10;
1514	else if ((tmp >= 'A') && (tmp <= 'F'))
1515	charval = charval * 16 + (tmp - 'A') + 10;
1516	else {
1517	xmlTreeErr(XML_TREE_INVALID_HEX, (xmlNodePtr) doc,
1518	NULL);
1519	charval = 0;
1520	break;
1521	}
1522	cur++;
1523	tmp = *cur;
1524	}
1525	if (tmp == ';')
1526	cur++;
1527	q = cur;
1528	} else if (cur[1] == '#') {
1529	cur += 2;
1530	tmp = *cur;
1531	while (tmp != ';') { /* Non input consuming loops */
1532	if ((tmp >= '0') && (tmp <= '9'))
1533	charval = charval * 10 + (tmp - '0');
1534	else {
1535	xmlTreeErr(XML_TREE_INVALID_DEC, (xmlNodePtr) doc,
1536	NULL);
1537	charval = 0;
1538	break;
1539	}
1540	cur++;
1541	tmp = *cur;
1542	}
1543	if (tmp == ';')
1544	cur++;
1545	q = cur;
1546	} else {
1547	/*
1548	* Read the entity string
1549	*/
1550	cur++;
1551	q = cur;
1552	while ((cur != 0) && (cur != ';')) cur++;
1553	if (*cur == 0) {
1554	xmlTreeErr(XML_TREE_UNTERMINATED_ENTITY,
1555	(xmlNodePtr) doc, (const char *) q);
1556	goto out;
1557	}
1558	if (cur != q) {
1559	/*
1560	* Predefined entities don't generate nodes
1561	*/
1562	val = xmlStrndup(q, cur - q);
1563	ent = xmlGetDocEntity(doc, val);
1564	if ((ent != NULL) &&
1565	(ent->etype == XML_INTERNAL_PREDEFINED_ENTITY)) {
1566
1567	if (xmlBufCat(buf, ent->content))
1568	goto out;
1569
1570	} else {
1571	/*
1572	* Flush buffer so far
1573	*/
1574	if (!xmlBufIsEmpty(buf)) {
1575	node = xmlNewDocText(doc, NULL);
1576	node->content = xmlBufDetach(buf);
1577
1578	if (last == NULL) {
1579	last = ret = node;
1580	} else {
1581	last = xmlAddNextSibling(last, node);
1582	}
1583	}
1584
1585	/*
1586	* Create a new REFERENCE_REF node
1587	*/
1588	node = xmlNewReference(doc, val);
1589	if (node == NULL) {
1590	if (val != NULL) xmlFree(val);
1591	goto out;
1592	}
1593	else if ((ent != NULL) && (ent->children == NULL)) {
1594	xmlNodePtr temp;
1595
1596	ent->children = xmlStringGetNodeList(doc,
1597	(const xmlChar*)node->content);
1598	ent->owner = 1;
1599	temp = ent->children;
1600	while (temp) {
1601	temp->parent = (xmlNodePtr)ent;
1602	temp = temp->next;
1603	}
1604	}
1605	if (last == NULL) {
1606	last = ret = node;
1607	} else {
1608	last = xmlAddNextSibling(last, node);
1609	}
1610	}
1611	xmlFree(val);
1612	}
1613	cur++;
1614	q = cur;
1615	}
1616	if (charval != 0) {
1617	xmlChar buffer[10];
1618	int len;
1619
1620	len = xmlCopyCharMultiByte(buffer, charval);
1621	buffer[len] = 0;
1622
1623	if (xmlBufCat(buf, buffer))
1624	goto out;
1625	charval = 0;
1626	}
1627	} else
1628	cur++;
1629	}
1630	if ((cur != q) \|\| (ret == NULL)) {
1631	/*
1632	* Handle the last piece of text.
1633	*/
1634	xmlBufAdd(buf, q, cur - q);
1635	}
1636
1637	if (!xmlBufIsEmpty(buf)) {
1638	node = xmlNewDocText(doc, NULL);
1639	node->content = xmlBufDetach(buf);
1640
1641	if (last == NULL) {
1642	last = ret = node;
1643	} else {
1644	last = xmlAddNextSibling(last, node);
1645	}
1646	}
1647
1648	out:
1649	xmlBufFree(buf);
1650	return(ret);
1651	}
1652
1653	/**
1654	* xmlNodeListGetString:
1655	* @doc: the document
1656	* @list: a Node list
1657	* @inLine: should we replace entity contents or show their external form
1658	*
1659	* Build the string equivalent to the text contained in the Node list
1660	* made of TEXTs and ENTITY_REFs
1661	*
1662	* Returns a pointer to the string copy, the caller must free it with xmlFree().
1663	*/
1664	xmlChar *
1665	xmlNodeListGetString(xmlDocPtr doc, const xmlNode *list, int inLine)
1666	{
1667	const xmlNode *node = list;
1668	xmlChar *ret = NULL;
1669	xmlEntityPtr ent;
1670	int attr;
1671
1672	if (list == NULL)
1673	return (NULL);
1674	if ((list->parent != NULL) && (list->parent->type == XML_ATTRIBUTE_NODE))
1675	attr = 1;
1676	else
1677	attr = 0;
1678
1679	while (node != NULL) {
1680	if ((node->type == XML_TEXT_NODE) \|\|
1681	(node->type == XML_CDATA_SECTION_NODE)) {
1682	if (inLine) {
1683	ret = xmlStrcat(ret, node->content);
1684	} else {
1685	xmlChar *buffer;
1686
1687	if (attr)
1688	buffer = xmlEncodeAttributeEntities(doc, node->content);
1689	else
1690	buffer = xmlEncodeEntitiesReentrant(doc, node->content);
1691	if (buffer != NULL) {
1692	ret = xmlStrcat(ret, buffer);
1693	xmlFree(buffer);
1694	}
1695	}
1696	} else if (node->type == XML_ENTITY_REF_NODE) {
1697	if (inLine) {
1698	ent = xmlGetDocEntity(doc, node->name);
1699	if (ent != NULL) {
1700	xmlChar *buffer;
1701
1702	/* an entity content can be any "well balanced chunk",
1703	* i.e. the result of the content [43] production:
1704	* http://www.w3.org/TR/REC-xml#NT-content.
1705	* So it can contain text, CDATA section or nested
1706	* entity reference nodes (among others).
1707	* -> we recursive call xmlNodeListGetString()
1708	* which handles these types */
1709	buffer = xmlNodeListGetString(doc, ent->children, 1);
1710	if (buffer != NULL) {
1711	ret = xmlStrcat(ret, buffer);
1712	xmlFree(buffer);
1713	}
1714	} else {
1715	ret = xmlStrcat(ret, node->content);
1716	}
1717	} else {
1718	xmlChar buf[2];
1719
1720	buf[0] = '&';
1721	buf[1] = 0;
1722	ret = xmlStrncat(ret, buf, 1);
1723	ret = xmlStrcat(ret, node->name);
1724	buf[0] = ';';
1725	buf[1] = 0;
1726	ret = xmlStrncat(ret, buf, 1);
1727	}
1728	}
1729	#if 0
1730	else {
1731	xmlGenericError(xmlGenericErrorContext,
1732	"xmlGetNodeListString : invalid node type %d\n",
1733	node->type);
1734	}
1735	#endif
1736	node = node->next;
1737	}
1738	return (ret);
1739	}
1740
1741	#ifdef LIBXML_TREE_ENABLED
1742	/**
1743	* xmlNodeListGetRawString:
1744	* @doc: the document
1745	* @list: a Node list
1746	* @inLine: should we replace entity contents or show their external form
1747	*
1748	* Builds the string equivalent to the text contained in the Node list
1749	* made of TEXTs and ENTITY_REFs, contrary to xmlNodeListGetString()
1750	* this function doesn't do any character encoding handling.
1751	*
1752	* Returns a pointer to the string copy, the caller must free it with xmlFree().
1753	*/
1754	xmlChar *
1755	xmlNodeListGetRawString(const xmlDoc doc, const xmlNode list, int inLine)
1756	{
1757	const xmlNode *node = list;
1758	xmlChar *ret = NULL;
1759	xmlEntityPtr ent;
1760
1761	if (list == NULL)
1762	return (NULL);
1763
1764	while (node != NULL) {
1765	if ((node->type == XML_TEXT_NODE) \|\|
1766	(node->type == XML_CDATA_SECTION_NODE)) {
1767	if (inLine) {
1768	ret = xmlStrcat(ret, node->content);
1769	} else {
1770	xmlChar *buffer;
1771
1772	buffer = xmlEncodeSpecialChars(doc, node->content);
1773	if (buffer != NULL) {
1774	ret = xmlStrcat(ret, buffer);
1775	xmlFree(buffer);
1776	}
1777	}
1778	} else if (node->type == XML_ENTITY_REF_NODE) {
1779	if (inLine) {
1780	ent = xmlGetDocEntity(doc, node->name);
1781	if (ent != NULL) {
1782	xmlChar *buffer;
1783
1784	/* an entity content can be any "well balanced chunk",
1785	* i.e. the result of the content [43] production:
1786	* http://www.w3.org/TR/REC-xml#NT-content.
1787	* So it can contain text, CDATA section or nested
1788	* entity reference nodes (among others).
1789	* -> we recursive call xmlNodeListGetRawString()
1790	* which handles these types */
1791	buffer =
1792	xmlNodeListGetRawString(doc, ent->children, 1);
1793	if (buffer != NULL) {
1794	ret = xmlStrcat(ret, buffer);
1795	xmlFree(buffer);
1796	}
1797	} else {
1798	ret = xmlStrcat(ret, node->content);
1799	}
1800	} else {
1801	xmlChar buf[2];
1802
1803	buf[0] = '&';
1804	buf[1] = 0;
1805	ret = xmlStrncat(ret, buf, 1);
1806	ret = xmlStrcat(ret, node->name);
1807	buf[0] = ';';
1808	buf[1] = 0;
1809	ret = xmlStrncat(ret, buf, 1);
1810	}
1811	}
1812	#if 0
1813	else {
1814	xmlGenericError(xmlGenericErrorContext,
1815	"xmlGetNodeListString : invalid node type %d\n",
1816	node->type);
1817	}
1818	#endif
1819	node = node->next;
1820	}
1821	return (ret);
1822	}
1823	#endif /* LIBXML_TREE_ENABLED */
1824
1825	static xmlAttrPtr
1826	xmlNewPropInternal(xmlNodePtr node, xmlNsPtr ns,
1827	const xmlChar * name, const xmlChar * value,
1828	int eatname)
1829	{
1830	xmlAttrPtr cur;
1831	xmlDocPtr doc = NULL;
1832
1833	if ((node != NULL) && (node->type != XML_ELEMENT_NODE)) {
1834	if ((eatname == 1) &&
1835	((node->doc == NULL) \|\|
1836	(!(xmlDictOwns(node->doc->dict, name)))))
1837	xmlFree((xmlChar *) name);
1838	return (NULL);
1839	}
1840
1841	/*
1842	* Allocate a new property and fill the fields.
1843	*/
1844	cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
1845	if (cur == NULL) {
1846	if ((eatname == 1) &&
1847	((node == NULL) \|\| (node->doc == NULL) \|\|
1848	(!(xmlDictOwns(node->doc->dict, name)))))
1849	xmlFree((xmlChar *) name);
1850	xmlTreeErrMemory("building attribute");
1851	return (NULL);
1852	}
1853	memset(cur, 0, sizeof(xmlAttr));
1854	cur->type = XML_ATTRIBUTE_NODE;
1855
1856	cur->parent = node;
1857	if (node != NULL) {
1858	doc = node->doc;
1859	cur->doc = doc;
1860	}
1861	cur->ns = ns;
1862
1863	if (eatname == 0) {
1864	if ((doc != NULL) && (doc->dict != NULL))
1865	cur->name = (xmlChar *) xmlDictLookup(doc->dict, name, -1);
1866	else
1867	cur->name = xmlStrdup(name);
1868	} else
1869	cur->name = name;
1870
1871	if (value != NULL) {
1872	xmlNodePtr tmp;
1873
1874	if(!xmlCheckUTF8(value)) {
1875	xmlTreeErr(XML_TREE_NOT_UTF8, (xmlNodePtr) doc,
1876	NULL);
1877	if (doc != NULL)
1878	doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");
1879	}
1880	cur->children = xmlNewDocText(doc, value);
1881	cur->last = NULL;
1882	tmp = cur->children;
1883	while (tmp != NULL) {
1884	tmp->parent = (xmlNodePtr) cur;
1885	if (tmp->next == NULL)
1886	cur->last = tmp;
1887	tmp = tmp->next;
1888	}
1889	}
1890
1891	/*
1892	* Add it at the end to preserve parsing order ...
1893	*/
1894	if (node != NULL) {
1895	if (node->properties == NULL) {
1896	node->properties = cur;
1897	} else {
1898	xmlAttrPtr prev = node->properties;
1899
1900	while (prev->next != NULL)
1901	prev = prev->next;
1902	prev->next = cur;
1903	cur->prev = prev;
1904	}
1905	}
1906
1907	if ((value != NULL) && (node != NULL) &&
1908	(xmlIsID(node->doc, node, cur) == 1))
1909	xmlAddID(NULL, node->doc, value, cur);
1910
1911	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
1912	xmlRegisterNodeDefaultValue((xmlNodePtr) cur);
1913	return (cur);
1914	}
1915
1916	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_HTML_ENABLED) \|\| \
1917	defined(LIBXML_SCHEMAS_ENABLED)
1918	/**
1919	* xmlNewProp:
1920	* @node: the holding node
1921	* @name: the name of the attribute
1922	* @value: the value of the attribute
1923	*
1924	* Create a new property carried by a node.
1925	* Returns a pointer to the attribute
1926	*/
1927	xmlAttrPtr
1928	xmlNewProp(xmlNodePtr node, const xmlChar name, const xmlChar value) {
1929
1930	if (name == NULL) {
1931	#ifdef DEBUG_TREE
1932	xmlGenericError(xmlGenericErrorContext,
1933	"xmlNewProp : name == NULL\n");
1934	#endif
1935	return(NULL);
1936	}
1937
1938	return xmlNewPropInternal(node, NULL, name, value, 0);
1939	}
1940	#endif /* LIBXML_TREE_ENABLED */
1941
1942	/**
1943	* xmlNewNsProp:
1944	* @node: the holding node
1945	* @ns: the namespace
1946	* @name: the name of the attribute
1947	* @value: the value of the attribute
1948	*
1949	* Create a new property tagged with a namespace and carried by a node.
1950	* Returns a pointer to the attribute
1951	*/
1952	xmlAttrPtr
1953	xmlNewNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name,
1954	const xmlChar *value) {
1955
1956	if (name == NULL) {
1957	#ifdef DEBUG_TREE
1958	xmlGenericError(xmlGenericErrorContext,
1959	"xmlNewNsProp : name == NULL\n");
1960	#endif
1961	return(NULL);
1962	}
1963
1964	return xmlNewPropInternal(node, ns, name, value, 0);
1965	}
1966
1967	/**
1968	* xmlNewNsPropEatName:
1969	* @node: the holding node
1970	* @ns: the namespace
1971	* @name: the name of the attribute
1972	* @value: the value of the attribute
1973	*
1974	* Create a new property tagged with a namespace and carried by a node.
1975	* Returns a pointer to the attribute
1976	*/
1977	xmlAttrPtr
1978	xmlNewNsPropEatName(xmlNodePtr node, xmlNsPtr ns, xmlChar *name,
1979	const xmlChar *value) {
1980
1981	if (name == NULL) {
1982	#ifdef DEBUG_TREE
1983	xmlGenericError(xmlGenericErrorContext,
1984	"xmlNewNsPropEatName : name == NULL\n");
1985	#endif
1986	return(NULL);
1987	}
1988
1989	return xmlNewPropInternal(node, ns, name, value, 1);
1990	}
1991
1992	/**
1993	* xmlNewDocProp:
1994	* @doc: the document
1995	* @name: the name of the attribute
1996	* @value: the value of the attribute
1997	*
1998	* Create a new property carried by a document.
1999	* Returns a pointer to the attribute
2000	*/
2001	xmlAttrPtr
2002	xmlNewDocProp(xmlDocPtr doc, const xmlChar name, const xmlChar value) {
2003	xmlAttrPtr cur;
2004
2005	if (name == NULL) {
2006	#ifdef DEBUG_TREE
2007	xmlGenericError(xmlGenericErrorContext,
2008	"xmlNewDocProp : name == NULL\n");
2009	#endif
2010	return(NULL);
2011	}
2012
2013	/*
2014	* Allocate a new property and fill the fields.
2015	*/
2016	cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));
2017	if (cur == NULL) {
2018	xmlTreeErrMemory("building attribute");
2019	return(NULL);
2020	}
2021	memset(cur, 0, sizeof(xmlAttr));
2022	cur->type = XML_ATTRIBUTE_NODE;
2023
2024	if ((doc != NULL) && (doc->dict != NULL))
2025	cur->name = xmlDictLookup(doc->dict, name, -1);
2026	else
2027	cur->name = xmlStrdup(name);
2028	cur->doc = doc;
2029	if (value != NULL) {
2030	xmlNodePtr tmp;
2031
2032	cur->children = xmlStringGetNodeList(doc, value);
2033	cur->last = NULL;
2034
2035	tmp = cur->children;
2036	while (tmp != NULL) {
2037	tmp->parent = (xmlNodePtr) cur;
2038	if (tmp->next == NULL)
2039	cur->last = tmp;
2040	tmp = tmp->next;
2041	}
2042	}
2043
2044	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2045	xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
2046	return(cur);
2047	}
2048
2049	/**
2050	* xmlFreePropList:
2051	* @cur: the first property in the list
2052	*
2053	* Free a property and all its siblings, all the children are freed too.
2054	*/
2055	void
2056	xmlFreePropList(xmlAttrPtr cur) {
2057	xmlAttrPtr next;
2058	if (cur == NULL) return;
2059	while (cur != NULL) {
2060	next = cur->next;
2061	xmlFreeProp(cur);
2062	cur = next;
2063	}
2064	}
2065
2066	/**
2067	* xmlFreeProp:
2068	* @cur: an attribute
2069	*
2070	* Free one attribute, all the content is freed too
2071	*/
2072	void
2073	xmlFreeProp(xmlAttrPtr cur) {
2074	xmlDictPtr dict = NULL;
2075	if (cur == NULL) return;
2076
2077	if (cur->doc != NULL) dict = cur->doc->dict;
2078
2079	if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
2080	xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);
2081
2082	/* Check for ID removal -> leading to invalid references ! */
2083	if ((cur->doc != NULL) && (cur->atype == XML_ATTRIBUTE_ID)) {
2084	xmlRemoveID(cur->doc, cur);
2085	}
2086	if (cur->children != NULL) xmlFreeNodeList(cur->children);
2087	DICT_FREE(cur->name)
2088	xmlFree(cur);
2089	}
2090
2091	/**
2092	* xmlRemoveProp:
2093	* @cur: an attribute
2094	*
2095	* Unlink and free one attribute, all the content is freed too
2096	* Note this doesn't work for namespace definition attributes
2097	*
2098	* Returns 0 if success and -1 in case of error.
2099	*/
2100	int
2101	xmlRemoveProp(xmlAttrPtr cur) {
2102	xmlAttrPtr tmp;
2103	if (cur == NULL) {
2104	#ifdef DEBUG_TREE
2105	xmlGenericError(xmlGenericErrorContext,
2106	"xmlRemoveProp : cur == NULL\n");
2107	#endif
2108	return(-1);
2109	}
2110	if (cur->parent == NULL) {
2111	#ifdef DEBUG_TREE
2112	xmlGenericError(xmlGenericErrorContext,
2113	"xmlRemoveProp : cur->parent == NULL\n");
2114	#endif
2115	return(-1);
2116	}
2117	tmp = cur->parent->properties;
2118	if (tmp == cur) {
2119	cur->parent->properties = cur->next;
2120	if (cur->next != NULL)
2121	cur->next->prev = NULL;
2122	xmlFreeProp(cur);
2123	return(0);
2124	}
2125	while (tmp != NULL) {
2126	if (tmp->next == cur) {
2127	tmp->next = cur->next;
2128	if (tmp->next != NULL)
2129	tmp->next->prev = tmp;
2130	xmlFreeProp(cur);
2131	return(0);
2132	}
2133	tmp = tmp->next;
2134	}
2135	#ifdef DEBUG_TREE
2136	xmlGenericError(xmlGenericErrorContext,
2137	"xmlRemoveProp : attribute not owned by its node\n");
2138	#endif
2139	return(-1);
2140	}
2141
2142	/**
2143	* xmlNewDocPI:
2144	* @doc: the target document
2145	* @name: the processing instruction name
2146	* @content: the PI content
2147	*
2148	* Creation of a processing instruction element.
2149	* Returns a pointer to the new node object.
2150	*/
2151	xmlNodePtr
2152	xmlNewDocPI(xmlDocPtr doc, const xmlChar name, const xmlChar content) {
2153	xmlNodePtr cur;
2154
2155	if (name == NULL) {
2156	#ifdef DEBUG_TREE
2157	xmlGenericError(xmlGenericErrorContext,
2158	"xmlNewPI : name == NULL\n");
2159	#endif
2160	return(NULL);
2161	}
2162
2163	/*
2164	* Allocate a new node and fill the fields.
2165	*/
2166	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2167	if (cur == NULL) {
2168	xmlTreeErrMemory("building PI");
2169	return(NULL);
2170	}
2171	memset(cur, 0, sizeof(xmlNode));
2172	cur->type = XML_PI_NODE;
2173
2174	if ((doc != NULL) && (doc->dict != NULL))
2175	cur->name = xmlDictLookup(doc->dict, name, -1);
2176	else
2177	cur->name = xmlStrdup(name);
2178	if (content != NULL) {
2179	cur->content = xmlStrdup(content);
2180	}
2181	cur->doc = doc;
2182
2183	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2184	xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
2185	return(cur);
2186	}
2187
2188	/**
2189	* xmlNewPI:
2190	* @name: the processing instruction name
2191	* @content: the PI content
2192	*
2193	* Creation of a processing instruction element.
2194	* Use xmlDocNewPI preferably to get string interning
2195	*
2196	* Returns a pointer to the new node object.
2197	*/
2198	xmlNodePtr
2199	xmlNewPI(const xmlChar name, const xmlChar content) {
2200	return(xmlNewDocPI(NULL, name, content));
2201	}
2202
2203	/**
2204	* xmlNewNode:
2205	* @ns: namespace if any
2206	* @name: the node name
2207	*
2208	* Creation of a new node element. @ns is optional (NULL).
2209	*
2210	* Returns a pointer to the new node object. Uses xmlStrdup() to make
2211	* copy of @name.
2212	*/
2213	xmlNodePtr
2214	xmlNewNode(xmlNsPtr ns, const xmlChar *name) {
2215	xmlNodePtr cur;
2216
2217	if (name == NULL) {
2218	#ifdef DEBUG_TREE
2219	xmlGenericError(xmlGenericErrorContext,
2220	"xmlNewNode : name == NULL\n");
2221	#endif
2222	return(NULL);
2223	}
2224
2225	/*
2226	* Allocate a new node and fill the fields.
2227	*/
2228	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2229	if (cur == NULL) {
2230	xmlTreeErrMemory("building node");
2231	return(NULL);
2232	}
2233	memset(cur, 0, sizeof(xmlNode));
2234	cur->type = XML_ELEMENT_NODE;
2235
2236	cur->name = xmlStrdup(name);
2237	cur->ns = ns;
2238
2239	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2240	xmlRegisterNodeDefaultValue(cur);
2241	return(cur);
2242	}
2243
2244	/**
2245	* xmlNewNodeEatName:
2246	* @ns: namespace if any
2247	* @name: the node name
2248	*
2249	* Creation of a new node element. @ns is optional (NULL).
2250	*
2251	* Returns a pointer to the new node object, with pointer @name as
2252	* new node's name. Use xmlNewNode() if a copy of @name string is
2253	* is needed as new node's name.
2254	*/
2255	xmlNodePtr
2256	xmlNewNodeEatName(xmlNsPtr ns, xmlChar *name) {
2257	xmlNodePtr cur;
2258
2259	if (name == NULL) {
2260	#ifdef DEBUG_TREE
2261	xmlGenericError(xmlGenericErrorContext,
2262	"xmlNewNode : name == NULL\n");
2263	#endif
2264	return(NULL);
2265	}
2266
2267	/*
2268	* Allocate a new node and fill the fields.
2269	*/
2270	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2271	if (cur == NULL) {
2272	xmlTreeErrMemory("building node");
2273	/* we can't check here that name comes from the doc dictionnary */
2274	return(NULL);
2275	}
2276	memset(cur, 0, sizeof(xmlNode));
2277	cur->type = XML_ELEMENT_NODE;
2278
2279	cur->name = name;
2280	cur->ns = ns;
2281
2282	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2283	xmlRegisterNodeDefaultValue((xmlNodePtr)cur);
2284	return(cur);
2285	}
2286
2287	/**
2288	* xmlNewDocNode:
2289	* @doc: the document
2290	* @ns: namespace if any
2291	* @name: the node name
2292	* @content: the XML text content if any
2293	*
2294	* Creation of a new node element within a document. @ns and @content
2295	* are optional (NULL).
2296	* NOTE: @content is supposed to be a piece of XML CDATA, so it allow entities
2297	* references, but XML special chars need to be escaped first by using
2298	* xmlEncodeEntitiesReentrant(). Use xmlNewDocRawNode() if you don't
2299	* need entities support.
2300	*
2301	* Returns a pointer to the new node object.
2302	*/
2303	xmlNodePtr
2304	xmlNewDocNode(xmlDocPtr doc, xmlNsPtr ns,
2305	const xmlChar name, const xmlChar content) {
2306	xmlNodePtr cur;
2307
2308	if ((doc != NULL) && (doc->dict != NULL))
2309	cur = xmlNewNodeEatName(ns, (xmlChar *)
2310	xmlDictLookup(doc->dict, name, -1));
2311	else
2312	cur = xmlNewNode(ns, name);
2313	if (cur != NULL) {
2314	cur->doc = doc;
2315	if (content != NULL) {
2316	cur->children = xmlStringGetNodeList(doc, content);
2317	UPDATE_LAST_CHILD_AND_PARENT(cur)
2318	}
2319	}
2320
2321	return(cur);
2322	}
2323
2324	/**
2325	* xmlNewDocNodeEatName:
2326	* @doc: the document
2327	* @ns: namespace if any
2328	* @name: the node name
2329	* @content: the XML text content if any
2330	*
2331	* Creation of a new node element within a document. @ns and @content
2332	* are optional (NULL).
2333	* NOTE: @content is supposed to be a piece of XML CDATA, so it allow entities
2334	* references, but XML special chars need to be escaped first by using
2335	* xmlEncodeEntitiesReentrant(). Use xmlNewDocRawNode() if you don't
2336	* need entities support.
2337	*
2338	* Returns a pointer to the new node object.
2339	*/
2340	xmlNodePtr
2341	xmlNewDocNodeEatName(xmlDocPtr doc, xmlNsPtr ns,
2342	xmlChar name, const xmlChar content) {
2343	xmlNodePtr cur;
2344
2345	cur = xmlNewNodeEatName(ns, name);
2346	if (cur != NULL) {
2347	cur->doc = doc;
2348	if (content != NULL) {
2349	cur->children = xmlStringGetNodeList(doc, content);
2350	UPDATE_LAST_CHILD_AND_PARENT(cur)
2351	}
2352	} else {
2353	/* if name don't come from the doc dictionnary free it here */
2354	if ((name != NULL) && (doc != NULL) &&
2355	(!(xmlDictOwns(doc->dict, name))))
2356	xmlFree(name);
2357	}
2358	return(cur);
2359	}
2360
2361	#ifdef LIBXML_TREE_ENABLED
2362	/**
2363	* xmlNewDocRawNode:
2364	* @doc: the document
2365	* @ns: namespace if any
2366	* @name: the node name
2367	* @content: the text content if any
2368	*
2369	* Creation of a new node element within a document. @ns and @content
2370	* are optional (NULL).
2371	*
2372	* Returns a pointer to the new node object.
2373	*/
2374	xmlNodePtr
2375	xmlNewDocRawNode(xmlDocPtr doc, xmlNsPtr ns,
2376	const xmlChar name, const xmlChar content) {
2377	xmlNodePtr cur;
2378
2379	cur = xmlNewDocNode(doc, ns, name, NULL);
2380	if (cur != NULL) {
2381	cur->doc = doc;
2382	if (content != NULL) {
2383	cur->children = xmlNewDocText(doc, content);
2384	UPDATE_LAST_CHILD_AND_PARENT(cur)
2385	}
2386	}
2387	return(cur);
2388	}
2389
2390	/**
2391	* xmlNewDocFragment:
2392	* @doc: the document owning the fragment
2393	*
2394	* Creation of a new Fragment node.
2395	* Returns a pointer to the new node object.
2396	*/
2397	xmlNodePtr
2398	xmlNewDocFragment(xmlDocPtr doc) {
2399	xmlNodePtr cur;
2400
2401	/*
2402	* Allocate a new DocumentFragment node and fill the fields.
2403	*/
2404	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2405	if (cur == NULL) {
2406	xmlTreeErrMemory("building fragment");
2407	return(NULL);
2408	}
2409	memset(cur, 0, sizeof(xmlNode));
2410	cur->type = XML_DOCUMENT_FRAG_NODE;
2411
2412	cur->doc = doc;
2413
2414	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2415	xmlRegisterNodeDefaultValue(cur);
2416	return(cur);
2417	}
2418	#endif /* LIBXML_TREE_ENABLED */
2419
2420	/**
2421	* xmlNewText:
2422	* @content: the text content
2423	*
2424	* Creation of a new text node.
2425	* Returns a pointer to the new node object.
2426	*/
2427	xmlNodePtr
2428	xmlNewText(const xmlChar *content) {
2429	xmlNodePtr cur;
2430
2431	/*
2432	* Allocate a new node and fill the fields.
2433	*/
2434	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2435	if (cur == NULL) {
2436	xmlTreeErrMemory("building text");
2437	return(NULL);
2438	}
2439	memset(cur, 0, sizeof(xmlNode));
2440	cur->type = XML_TEXT_NODE;
2441
2442	cur->name = xmlStringText;
2443	if (content != NULL) {
2444	cur->content = xmlStrdup(content);
2445	}
2446
2447	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2448	xmlRegisterNodeDefaultValue(cur);
2449	return(cur);
2450	}
2451
2452	#ifdef LIBXML_TREE_ENABLED
2453	/**
2454	* xmlNewTextChild:
2455	* @parent: the parent node
2456	* @ns: a namespace if any
2457	* @name: the name of the child
2458	* @content: the text content of the child if any.
2459	*
2460	* Creation of a new child element, added at the end of @parent children list.
2461	* @ns and @content parameters are optional (NULL). If @ns is NULL, the newly
2462	* created element inherits the namespace of @parent. If @content is non NULL,
2463	* a child TEXT node will be created containing the string @content.
2464	* NOTE: Use xmlNewChild() if @content will contain entities that need to be
2465	* preserved. Use this function, xmlNewTextChild(), if you need to ensure that
2466	* reserved XML chars that might appear in @content, such as the ampersand,
2467	* greater-than or less-than signs, are automatically replaced by their XML
2468	* escaped entity representations.
2469	*
2470	* Returns a pointer to the new node object.
2471	*/
2472	xmlNodePtr
2473	xmlNewTextChild(xmlNodePtr parent, xmlNsPtr ns,
2474	const xmlChar name, const xmlChar content) {
2475	xmlNodePtr cur, prev;
2476
2477	if (parent == NULL) {
2478	#ifdef DEBUG_TREE
2479	xmlGenericError(xmlGenericErrorContext,
2480	"xmlNewTextChild : parent == NULL\n");
2481	#endif
2482	return(NULL);
2483	}
2484
2485	if (name == NULL) {
2486	#ifdef DEBUG_TREE
2487	xmlGenericError(xmlGenericErrorContext,
2488	"xmlNewTextChild : name == NULL\n");
2489	#endif
2490	return(NULL);
2491	}
2492
2493	/*
2494	* Allocate a new node
2495	*/
2496	if (parent->type == XML_ELEMENT_NODE) {
2497	if (ns == NULL)
2498	cur = xmlNewDocRawNode(parent->doc, parent->ns, name, content);
2499	else
2500	cur = xmlNewDocRawNode(parent->doc, ns, name, content);
2501	} else if ((parent->type == XML_DOCUMENT_NODE) \|\|
2502	(parent->type == XML_HTML_DOCUMENT_NODE)) {
2503	if (ns == NULL)
2504	cur = xmlNewDocRawNode((xmlDocPtr) parent, NULL, name, content);
2505	else
2506	cur = xmlNewDocRawNode((xmlDocPtr) parent, ns, name, content);
2507	} else if (parent->type == XML_DOCUMENT_FRAG_NODE) {
2508	cur = xmlNewDocRawNode( parent->doc, ns, name, content);
2509	} else {
2510	return(NULL);
2511	}
2512	if (cur == NULL) return(NULL);
2513
2514	/*
2515	* add the new element at the end of the children list.
2516	*/
2517	cur->type = XML_ELEMENT_NODE;
2518	cur->parent = parent;
2519	cur->doc = parent->doc;
2520	if (parent->children == NULL) {
2521	parent->children = cur;
2522	parent->last = cur;
2523	} else {
2524	prev = parent->last;
2525	prev->next = cur;
2526	cur->prev = prev;
2527	parent->last = cur;
2528	}
2529
2530	return(cur);
2531	}
2532	#endif /* LIBXML_TREE_ENABLED */
2533
2534	/**
2535	* xmlNewCharRef:
2536	* @doc: the document
2537	* @name: the char ref string, starting with # or "&# ... ;"
2538	*
2539	* Creation of a new character reference node.
2540	* Returns a pointer to the new node object.
2541	*/
2542	xmlNodePtr
2543	xmlNewCharRef(xmlDocPtr doc, const xmlChar *name) {
2544	xmlNodePtr cur;
2545
2546	if (name == NULL)
2547	return(NULL);
2548
2549	/*
2550	* Allocate a new node and fill the fields.
2551	*/
2552	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2553	if (cur == NULL) {
2554	xmlTreeErrMemory("building character reference");
2555	return(NULL);
2556	}
2557	memset(cur, 0, sizeof(xmlNode));
2558	cur->type = XML_ENTITY_REF_NODE;
2559
2560	cur->doc = doc;
2561	if (name[0] == '&') {
2562	int len;
2563	name++;
2564	len = xmlStrlen(name);
2565	if (name[len - 1] == ';')
2566	cur->name = xmlStrndup(name, len - 1);
2567	else
2568	cur->name = xmlStrndup(name, len);
2569	} else
2570	cur->name = xmlStrdup(name);
2571
2572	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2573	xmlRegisterNodeDefaultValue(cur);
2574	return(cur);
2575	}
2576
2577	/**
2578	* xmlNewReference:
2579	* @doc: the document
2580	* @name: the reference name, or the reference string with & and ;
2581	*
2582	* Creation of a new reference node.
2583	* Returns a pointer to the new node object.
2584	*/
2585	xmlNodePtr
2586	xmlNewReference(const xmlDoc doc, const xmlChar name) {
2587	xmlNodePtr cur;
2588	xmlEntityPtr ent;
2589
2590	if (name == NULL)
2591	return(NULL);
2592
2593	/*
2594	* Allocate a new node and fill the fields.
2595	*/
2596	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2597	if (cur == NULL) {
2598	xmlTreeErrMemory("building reference");
2599	return(NULL);
2600	}
2601	memset(cur, 0, sizeof(xmlNode));
2602	cur->type = XML_ENTITY_REF_NODE;
2603
2604	cur->doc = (xmlDoc *)doc;
2605	if (name[0] == '&') {
2606	int len;
2607	name++;
2608	len = xmlStrlen(name);
2609	if (name[len - 1] == ';')
2610	cur->name = xmlStrndup(name, len - 1);
2611	else
2612	cur->name = xmlStrndup(name, len);
2613	} else
2614	cur->name = xmlStrdup(name);
2615
2616	ent = xmlGetDocEntity(doc, cur->name);
2617	if (ent != NULL) {
2618	cur->content = ent->content;
2619	/*
2620	* The parent pointer in entity is a DTD pointer and thus is NOT
2621	* updated. Not sure if this is 100% correct.
2622	* -George
2623	*/
2624	cur->children = (xmlNodePtr) ent;
2625	cur->last = (xmlNodePtr) ent;
2626	}
2627
2628	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2629	xmlRegisterNodeDefaultValue(cur);
2630	return(cur);
2631	}
2632
2633	/**
2634	* xmlNewDocText:
2635	* @doc: the document
2636	* @content: the text content
2637	*
2638	* Creation of a new text node within a document.
2639	* Returns a pointer to the new node object.
2640	*/
2641	xmlNodePtr
2642	xmlNewDocText(const xmlDoc doc, const xmlChar content) {
2643	xmlNodePtr cur;
2644
2645	cur = xmlNewText(content);
2646	if (cur != NULL) cur->doc = (xmlDoc *)doc;
2647	return(cur);
2648	}
2649
2650	/**
2651	* xmlNewTextLen:
2652	* @content: the text content
2653	* @len: the text len.
2654	*
2655	* Creation of a new text node with an extra parameter for the content's length
2656	* Returns a pointer to the new node object.
2657	*/
2658	xmlNodePtr
2659	xmlNewTextLen(const xmlChar *content, int len) {
2660	xmlNodePtr cur;
2661
2662	/*
2663	* Allocate a new node and fill the fields.
2664	*/
2665	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2666	if (cur == NULL) {
2667	xmlTreeErrMemory("building text");
2668	return(NULL);
2669	}
2670	memset(cur, 0, sizeof(xmlNode));
2671	cur->type = XML_TEXT_NODE;
2672
2673	cur->name = xmlStringText;
2674	if (content != NULL) {
2675	cur->content = xmlStrndup(content, len);
2676	}
2677
2678	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2679	xmlRegisterNodeDefaultValue(cur);
2680	return(cur);
2681	}
2682
2683	/**
2684	* xmlNewDocTextLen:
2685	* @doc: the document
2686	* @content: the text content
2687	* @len: the text len.
2688	*
2689	* Creation of a new text node with an extra content length parameter. The
2690	* text node pertain to a given document.
2691	* Returns a pointer to the new node object.
2692	*/
2693	xmlNodePtr
2694	xmlNewDocTextLen(xmlDocPtr doc, const xmlChar *content, int len) {
2695	xmlNodePtr cur;
2696
2697	cur = xmlNewTextLen(content, len);
2698	if (cur != NULL) cur->doc = doc;
2699	return(cur);
2700	}
2701
2702	/**
2703	* xmlNewComment:
2704	* @content: the comment content
2705	*
2706	* Creation of a new node containing a comment.
2707	* Returns a pointer to the new node object.
2708	*/
2709	xmlNodePtr
2710	xmlNewComment(const xmlChar *content) {
2711	xmlNodePtr cur;
2712
2713	/*
2714	* Allocate a new node and fill the fields.
2715	*/
2716	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2717	if (cur == NULL) {
2718	xmlTreeErrMemory("building comment");
2719	return(NULL);
2720	}
2721	memset(cur, 0, sizeof(xmlNode));
2722	cur->type = XML_COMMENT_NODE;
2723
2724	cur->name = xmlStringComment;
2725	if (content != NULL) {
2726	cur->content = xmlStrdup(content);
2727	}
2728
2729	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2730	xmlRegisterNodeDefaultValue(cur);
2731	return(cur);
2732	}
2733
2734	/**
2735	* xmlNewCDataBlock:
2736	* @doc: the document
2737	* @content: the CDATA block content content
2738	* @len: the length of the block
2739	*
2740	* Creation of a new node containing a CDATA block.
2741	* Returns a pointer to the new node object.
2742	*/
2743	xmlNodePtr
2744	xmlNewCDataBlock(xmlDocPtr doc, const xmlChar *content, int len) {
2745	xmlNodePtr cur;
2746
2747	/*
2748	* Allocate a new node and fill the fields.
2749	*/
2750	cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
2751	if (cur == NULL) {
2752	xmlTreeErrMemory("building CDATA");
2753	return(NULL);
2754	}
2755	memset(cur, 0, sizeof(xmlNode));
2756	cur->type = XML_CDATA_SECTION_NODE;
2757	cur->doc = doc;
2758
2759	if (content != NULL) {
2760	cur->content = xmlStrndup(content, len);
2761	}
2762
2763	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
2764	xmlRegisterNodeDefaultValue(cur);
2765	return(cur);
2766	}
2767
2768	/**
2769	* xmlNewDocComment:
2770	* @doc: the document
2771	* @content: the comment content
2772	*
2773	* Creation of a new node containing a comment within a document.
2774	* Returns a pointer to the new node object.
2775	*/
2776	xmlNodePtr
2777	xmlNewDocComment(xmlDocPtr doc, const xmlChar *content) {
2778	xmlNodePtr cur;
2779
2780	cur = xmlNewComment(content);
2781	if (cur != NULL) cur->doc = doc;
2782	return(cur);
2783	}
2784
2785	/**
2786	* xmlSetTreeDoc:
2787	* @tree: the top element
2788	* @doc: the document
2789	*
2790	* update all nodes under the tree to point to the right document
2791	*/
2792	void
2793	xmlSetTreeDoc(xmlNodePtr tree, xmlDocPtr doc) {
2794	xmlAttrPtr prop;
2795
2796	if ((tree == NULL) \|\| (tree->type == XML_NAMESPACE_DECL))
2797	return;
2798	if (tree->doc != doc) {
2799	if(tree->type == XML_ELEMENT_NODE) {
2800	prop = tree->properties;
2801	while (prop != NULL) {
2802	if (prop->atype == XML_ATTRIBUTE_ID) {
2803	xmlRemoveID(tree->doc, prop);
2804	}
2805
2806	prop->doc = doc;
2807	xmlSetListDoc(prop->children, doc);
2808
2809	if (xmlIsID(doc, tree, prop)) {
2810	xmlChar *idVal = xmlNodeListGetString(doc, prop->children,
2811	1);
2812	xmlAddID(NULL, doc, idVal, prop);
2813	}
2814
2815	prop = prop->next;
2816	}
2817	}
2818	if (tree->children != NULL)
2819	xmlSetListDoc(tree->children, doc);
2820	tree->doc = doc;
2821	}
2822	}
2823
2824	/**
2825	* xmlSetListDoc:
2826	* @list: the first element
2827	* @doc: the document
2828	*
2829	* update all nodes in the list to point to the right document
2830	*/
2831	void
2832	xmlSetListDoc(xmlNodePtr list, xmlDocPtr doc) {
2833	xmlNodePtr cur;
2834
2835	if ((list == NULL) \|\| (list->type == XML_NAMESPACE_DECL))
2836	return;
2837	cur = list;
2838	while (cur != NULL) {
2839	if (cur->doc != doc)
2840	xmlSetTreeDoc(cur, doc);
2841	cur = cur->next;
2842	}
2843	}
2844
2845	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_SCHEMAS_ENABLED)
2846	/**
2847	* xmlNewChild:
2848	* @parent: the parent node
2849	* @ns: a namespace if any
2850	* @name: the name of the child
2851	* @content: the XML content of the child if any.
2852	*
2853	* Creation of a new child element, added at the end of @parent children list.
2854	* @ns and @content parameters are optional (NULL). If @ns is NULL, the newly
2855	* created element inherits the namespace of @parent. If @content is non NULL,
2856	* a child list containing the TEXTs and ENTITY_REFs node will be created.
2857	* NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity
2858	* references. XML special chars must be escaped first by using
2859	* xmlEncodeEntitiesReentrant(), or xmlNewTextChild() should be used.
2860	*
2861	* Returns a pointer to the new node object.
2862	*/
2863	xmlNodePtr
2864	xmlNewChild(xmlNodePtr parent, xmlNsPtr ns,
2865	const xmlChar name, const xmlChar content) {
2866	xmlNodePtr cur, prev;
2867
2868	if (parent == NULL) {
2869	#ifdef DEBUG_TREE
2870	xmlGenericError(xmlGenericErrorContext,
2871	"xmlNewChild : parent == NULL\n");
2872	#endif
2873	return(NULL);
2874	}
2875
2876	if (name == NULL) {
2877	#ifdef DEBUG_TREE
2878	xmlGenericError(xmlGenericErrorContext,
2879	"xmlNewChild : name == NULL\n");
2880	#endif
2881	return(NULL);
2882	}
2883
2884	/*
2885	* Allocate a new node
2886	*/
2887	if (parent->type == XML_ELEMENT_NODE) {
2888	if (ns == NULL)
2889	cur = xmlNewDocNode(parent->doc, parent->ns, name, content);
2890	else
2891	cur = xmlNewDocNode(parent->doc, ns, name, content);
2892	} else if ((parent->type == XML_DOCUMENT_NODE) \|\|
2893	(parent->type == XML_HTML_DOCUMENT_NODE)) {
2894	if (ns == NULL)
2895	cur = xmlNewDocNode((xmlDocPtr) parent, NULL, name, content);
2896	else
2897	cur = xmlNewDocNode((xmlDocPtr) parent, ns, name, content);
2898	} else if (parent->type == XML_DOCUMENT_FRAG_NODE) {
2899	cur = xmlNewDocNode( parent->doc, ns, name, content);
2900	} else {
2901	return(NULL);
2902	}
2903	if (cur == NULL) return(NULL);
2904
2905	/*
2906	* add the new element at the end of the children list.
2907	*/
2908	cur->type = XML_ELEMENT_NODE;
2909	cur->parent = parent;
2910	cur->doc = parent->doc;
2911	if (parent->children == NULL) {
2912	parent->children = cur;
2913	parent->last = cur;
2914	} else {
2915	prev = parent->last;
2916	prev->next = cur;
2917	cur->prev = prev;
2918	parent->last = cur;
2919	}
2920
2921	return(cur);
2922	}
2923	#endif /* LIBXML_TREE_ENABLED */
2924
2925	/**
2926	* xmlAddPropSibling:
2927	* @prev: the attribute to which @prop is added after
2928	* @cur: the base attribute passed to calling function
2929	* @prop: the new attribute
2930	*
2931	* Add a new attribute after @prev using @cur as base attribute.
2932	* When inserting before @cur, @prev is passed as @cur->prev.
2933	* When inserting after @cur, @prev is passed as @cur.
2934	* If an existing attribute is found it is detroyed prior to adding @prop.
2935	*
2936	* Returns the attribute being inserted or NULL in case of error.
2937	*/
2938	static xmlNodePtr
2939	xmlAddPropSibling(xmlNodePtr prev, xmlNodePtr cur, xmlNodePtr prop) {
2940	xmlAttrPtr attr;
2941
2942	if ((cur == NULL) \|\| (cur->type != XML_ATTRIBUTE_NODE) \|\|
2943	(prop == NULL) \|\| (prop->type != XML_ATTRIBUTE_NODE) \|\|
2944	((prev != NULL) && (prev->type != XML_ATTRIBUTE_NODE)))
2945	return(NULL);
2946
2947	/* check if an attribute with the same name exists */
2948	if (prop->ns == NULL)
2949	attr = xmlHasNsProp(cur->parent, prop->name, NULL);
2950	else
2951	attr = xmlHasNsProp(cur->parent, prop->name, prop->ns->href);
2952
2953	if (prop->doc != cur->doc) {
2954	xmlSetTreeDoc(prop, cur->doc);
2955	}
2956	prop->parent = cur->parent;
2957	prop->prev = prev;
2958	if (prev != NULL) {
2959	prop->next = prev->next;
2960	prev->next = prop;
2961	if (prop->next)
2962	prop->next->prev = prop;
2963	} else {
2964	prop->next = cur;
2965	cur->prev = prop;
2966	}
2967	if (prop->prev == NULL && prop->parent != NULL)
2968	prop->parent->properties = (xmlAttrPtr) prop;
2969	if ((attr != NULL) && (attr->type != XML_ATTRIBUTE_DECL)) {
2970	/* different instance, destroy it (attributes must be unique) */
2971	xmlRemoveProp((xmlAttrPtr) attr);
2972	}
2973	return prop;
2974	}
2975
2976	/**
2977	* xmlAddNextSibling:
2978	* @cur: the child node
2979	* @elem: the new node
2980	*
2981	* Add a new node @elem as the next sibling of @cur
2982	* If the new node was already inserted in a document it is
2983	* first unlinked from its existing context.
2984	* As a result of text merging @elem may be freed.
2985	* If the new node is ATTRIBUTE, it is added into properties instead of children.
2986	* If there is an attribute with equal name, it is first destroyed.
2987	*
2988	* Returns the new node or NULL in case of error.
2989	*/
2990	xmlNodePtr
2991	xmlAddNextSibling(xmlNodePtr cur, xmlNodePtr elem) {
2992	if ((cur == NULL) \|\| (cur->type == XML_NAMESPACE_DECL)) {
2993	#ifdef DEBUG_TREE
2994	xmlGenericError(xmlGenericErrorContext,
2995	"xmlAddNextSibling : cur == NULL\n");
2996	#endif
2997	return(NULL);
2998	}
2999	if ((elem == NULL) \|\| (elem->type == XML_NAMESPACE_DECL)) {
3000	#ifdef DEBUG_TREE
3001	xmlGenericError(xmlGenericErrorContext,
3002	"xmlAddNextSibling : elem == NULL\n");
3003	#endif
3004	return(NULL);
3005	}
3006
3007	if (cur == elem) {
3008	#ifdef DEBUG_TREE
3009	xmlGenericError(xmlGenericErrorContext,
3010	"xmlAddNextSibling : cur == elem\n");
3011	#endif
3012	return(NULL);
3013	}
3014
3015	xmlUnlinkNode(elem);
3016
3017	if (elem->type == XML_TEXT_NODE) {
3018	if (cur->type == XML_TEXT_NODE) {
3019	xmlNodeAddContent(cur, elem->content);
3020	xmlFreeNode(elem);
3021	return(cur);
3022	}
3023	if ((cur->next != NULL) && (cur->next->type == XML_TEXT_NODE) &&
3024	(cur->name == cur->next->name)) {
3025	xmlChar *tmp;
3026
3027	tmp = xmlStrdup(elem->content);
3028	tmp = xmlStrcat(tmp, cur->next->content);
3029	xmlNodeSetContent(cur->next, tmp);
3030	xmlFree(tmp);
3031	xmlFreeNode(elem);
3032	return(cur->next);
3033	}
3034	} else if (elem->type == XML_ATTRIBUTE_NODE) {
3035	return xmlAddPropSibling(cur, cur, elem);
3036	}
3037
3038	if (elem->doc != cur->doc) {
3039	xmlSetTreeDoc(elem, cur->doc);
3040	}
3041	elem->parent = cur->parent;
3042	elem->prev = cur;
3043	elem->next = cur->next;
3044	cur->next = elem;
3045	if (elem->next != NULL)
3046	elem->next->prev = elem;
3047	if ((elem->parent != NULL) && (elem->parent->last == cur))
3048	elem->parent->last = elem;
3049	return(elem);
3050	}
3051
3052	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_HTML_ENABLED) \|\| \
3053	defined(LIBXML_SCHEMAS_ENABLED) \|\| defined(LIBXML_XINCLUDE_ENABLED)
3054	/**
3055	* xmlAddPrevSibling:
3056	* @cur: the child node
3057	* @elem: the new node
3058	*
3059	* Add a new node @elem as the previous sibling of @cur
3060	* merging adjacent TEXT nodes (@elem may be freed)
3061	* If the new node was already inserted in a document it is
3062	* first unlinked from its existing context.
3063	* If the new node is ATTRIBUTE, it is added into properties instead of children.
3064	* If there is an attribute with equal name, it is first destroyed.
3065	*
3066	* Returns the new node or NULL in case of error.
3067	*/
3068	xmlNodePtr
3069	xmlAddPrevSibling(xmlNodePtr cur, xmlNodePtr elem) {
3070	if ((cur == NULL) \|\| (cur->type == XML_NAMESPACE_DECL)) {
3071	#ifdef DEBUG_TREE
3072	xmlGenericError(xmlGenericErrorContext,
3073	"xmlAddPrevSibling : cur == NULL\n");
3074	#endif
3075	return(NULL);
3076	}
3077	if ((elem == NULL) \|\| (elem->type == XML_NAMESPACE_DECL)) {
3078	#ifdef DEBUG_TREE
3079	xmlGenericError(xmlGenericErrorContext,
3080	"xmlAddPrevSibling : elem == NULL\n");
3081	#endif
3082	return(NULL);
3083	}
3084
3085	if (cur == elem) {
3086	#ifdef DEBUG_TREE
3087	xmlGenericError(xmlGenericErrorContext,
3088	"xmlAddPrevSibling : cur == elem\n");
3089	#endif
3090	return(NULL);
3091	}
3092
3093	xmlUnlinkNode(elem);
3094
3095	if (elem->type == XML_TEXT_NODE) {
3096	if (cur->type == XML_TEXT_NODE) {
3097	xmlChar *tmp;
3098
3099	tmp = xmlStrdup(elem->content);
3100	tmp = xmlStrcat(tmp, cur->content);
3101	xmlNodeSetContent(cur, tmp);
3102	xmlFree(tmp);
3103	xmlFreeNode(elem);
3104	return(cur);
3105	}
3106	if ((cur->prev != NULL) && (cur->prev->type == XML_TEXT_NODE) &&
3107	(cur->name == cur->prev->name)) {
3108	xmlNodeAddContent(cur->prev, elem->content);
3109	xmlFreeNode(elem);
3110	return(cur->prev);
3111	}
3112	} else if (elem->type == XML_ATTRIBUTE_NODE) {
3113	return xmlAddPropSibling(cur->prev, cur, elem);
3114	}
3115
3116	if (elem->doc != cur->doc) {
3117	xmlSetTreeDoc(elem, cur->doc);
3118	}
3119	elem->parent = cur->parent;
3120	elem->next = cur;
3121	elem->prev = cur->prev;
3122	cur->prev = elem;
3123	if (elem->prev != NULL)
3124	elem->prev->next = elem;
3125	if ((elem->parent != NULL) && (elem->parent->children == cur)) {
3126	elem->parent->children = elem;
3127	}
3128	return(elem);
3129	}
3130	#endif /* LIBXML_TREE_ENABLED */
3131
3132	/**
3133	* xmlAddSibling:
3134	* @cur: the child node
3135	* @elem: the new node
3136	*
3137	* Add a new element @elem to the list of siblings of @cur
3138	* merging adjacent TEXT nodes (@elem may be freed)
3139	* If the new element was already inserted in a document it is
3140	* first unlinked from its existing context.
3141	*
3142	* Returns the new element or NULL in case of error.
3143	*/
3144	xmlNodePtr
3145	xmlAddSibling(xmlNodePtr cur, xmlNodePtr elem) {
3146	xmlNodePtr parent;
3147
3148	if ((cur == NULL) \|\| (cur->type == XML_NAMESPACE_DECL)) {
3149	#ifdef DEBUG_TREE
3150	xmlGenericError(xmlGenericErrorContext,
3151	"xmlAddSibling : cur == NULL\n");
3152	#endif
3153	return(NULL);
3154	}
3155
3156	if ((elem == NULL) \|\| (elem->type == XML_NAMESPACE_DECL)) {
3157	#ifdef DEBUG_TREE
3158	xmlGenericError(xmlGenericErrorContext,
3159	"xmlAddSibling : elem == NULL\n");
3160	#endif
3161	return(NULL);
3162	}
3163
3164	if (cur == elem) {
3165	#ifdef DEBUG_TREE
3166	xmlGenericError(xmlGenericErrorContext,
3167	"xmlAddSibling : cur == elem\n");
3168	#endif
3169	return(NULL);
3170	}
3171
3172	/*
3173	* Constant time is we can rely on the ->parent->last to find
3174	* the last sibling.
3175	*/
3176	if ((cur->type != XML_ATTRIBUTE_NODE) && (cur->parent != NULL) &&
3177	(cur->parent->children != NULL) &&
3178	(cur->parent->last != NULL) &&
3179	(cur->parent->last->next == NULL)) {
3180	cur = cur->parent->last;
3181	} else {
3182	while (cur->next != NULL) cur = cur->next;
3183	}
3184
3185	xmlUnlinkNode(elem);
3186
3187	if ((cur->type == XML_TEXT_NODE) && (elem->type == XML_TEXT_NODE) &&
3188	(cur->name == elem->name)) {
3189	xmlNodeAddContent(cur, elem->content);
3190	xmlFreeNode(elem);
3191	return(cur);
3192	} else if (elem->type == XML_ATTRIBUTE_NODE) {
3193	return xmlAddPropSibling(cur, cur, elem);
3194	}
3195
3196	if (elem->doc != cur->doc) {
3197	xmlSetTreeDoc(elem, cur->doc);
3198	}
3199	parent = cur->parent;
3200	elem->prev = cur;
3201	elem->next = NULL;
3202	elem->parent = parent;
3203	cur->next = elem;
3204	if (parent != NULL)
3205	parent->last = elem;
3206
3207	return(elem);
3208	}
3209
3210	/**
3211	* xmlAddChildList:
3212	* @parent: the parent node
3213	* @cur: the first node in the list
3214	*
3215	* Add a list of node at the end of the child list of the parent
3216	* merging adjacent TEXT nodes (@cur may be freed)
3217	*
3218	* Returns the last child or NULL in case of error.
3219	*/
3220	xmlNodePtr
3221	xmlAddChildList(xmlNodePtr parent, xmlNodePtr cur) {
3222	xmlNodePtr prev;
3223
3224	if ((parent == NULL) \|\| (parent->type == XML_NAMESPACE_DECL)) {
3225	#ifdef DEBUG_TREE
3226	xmlGenericError(xmlGenericErrorContext,
3227	"xmlAddChildList : parent == NULL\n");
3228	#endif
3229	return(NULL);
3230	}
3231
3232	if ((cur == NULL) \|\| (cur->type == XML_NAMESPACE_DECL)) {
3233	#ifdef DEBUG_TREE
3234	xmlGenericError(xmlGenericErrorContext,
3235	"xmlAddChildList : child == NULL\n");
3236	#endif
3237	return(NULL);
3238	}
3239
3240	if ((cur->doc != NULL) && (parent->doc != NULL) &&
3241	(cur->doc != parent->doc)) {
3242	#ifdef DEBUG_TREE
3243	xmlGenericError(xmlGenericErrorContext,
3244	"Elements moved to a different document\n");
3245	#endif
3246	}
3247
3248	/*
3249	* add the first element at the end of the children list.
3250	*/
3251
3252	if (parent->children == NULL) {
3253	parent->children = cur;
3254	} else {
3255	/*
3256	* If cur and parent->last both are TEXT nodes, then merge them.
3257	*/
3258	if ((cur->type == XML_TEXT_NODE) &&
3259	(parent->last->type == XML_TEXT_NODE) &&
3260	(cur->name == parent->last->name)) {
3261	xmlNodeAddContent(parent->last, cur->content);
3262	/*
3263	* if it's the only child, nothing more to be done.
3264	*/
3265	if (cur->next == NULL) {
3266	xmlFreeNode(cur);
3267	return(parent->last);
3268	}
3269	prev = cur;
3270	cur = cur->next;
3271	xmlFreeNode(prev);
3272	}
3273	prev = parent->last;
3274	prev->next = cur;
3275	cur->prev = prev;
3276	}
3277	while (cur->next != NULL) {
3278	cur->parent = parent;
3279	if (cur->doc != parent->doc) {
3280	xmlSetTreeDoc(cur, parent->doc);
3281	}
3282	cur = cur->next;
3283	}
3284	cur->parent = parent;
3285	/* the parent may not be linked to a doc ! */
3286	if (cur->doc != parent->doc) {
3287	xmlSetTreeDoc(cur, parent->doc);
3288	}
3289	parent->last = cur;
3290
3291	return(cur);
3292	}
3293
3294	/**
3295	* xmlAddChild:
3296	* @parent: the parent node
3297	* @cur: the child node
3298	*
3299	* Add a new node to @parent, at the end of the child (or property) list
3300	* merging adjacent TEXT nodes (in which case @cur is freed)
3301	* If the new node is ATTRIBUTE, it is added into properties instead of children.
3302	* If there is an attribute with equal name, it is first destroyed.
3303	*
3304	* Returns the child or NULL in case of error.
3305	*/
3306	xmlNodePtr
3307	xmlAddChild(xmlNodePtr parent, xmlNodePtr cur) {
3308	xmlNodePtr prev;
3309
3310	if ((parent == NULL) \|\| (parent->type == XML_NAMESPACE_DECL)) {
3311	#ifdef DEBUG_TREE
3312	xmlGenericError(xmlGenericErrorContext,
3313	"xmlAddChild : parent == NULL\n");
3314	#endif
3315	return(NULL);
3316	}
3317
3318	if ((cur == NULL) \|\| (cur->type == XML_NAMESPACE_DECL)) {
3319	#ifdef DEBUG_TREE
3320	xmlGenericError(xmlGenericErrorContext,
3321	"xmlAddChild : child == NULL\n");
3322	#endif
3323	return(NULL);
3324	}
3325
3326	if (parent == cur) {
3327	#ifdef DEBUG_TREE
3328	xmlGenericError(xmlGenericErrorContext,
3329	"xmlAddChild : parent == cur\n");
3330	#endif
3331	return(NULL);
3332	}
3333	/*
3334	* If cur is a TEXT node, merge its content with adjacent TEXT nodes
3335	* cur is then freed.
3336	*/
3337	if (cur->type == XML_TEXT_NODE) {
3338	if ((parent->type == XML_TEXT_NODE) &&
3339	(parent->content != NULL) &&
3340	(parent->name == cur->name)) {
3341	xmlNodeAddContent(parent, cur->content);
3342	xmlFreeNode(cur);
3343	return(parent);
3344	}
3345	if ((parent->last != NULL) && (parent->last->type == XML_TEXT_NODE) &&
3346	(parent->last->name == cur->name) &&
3347	(parent->last != cur)) {
3348	xmlNodeAddContent(parent->last, cur->content);
3349	xmlFreeNode(cur);
3350	return(parent->last);
3351	}
3352	}
3353
3354	/*
3355	* add the new element at the end of the children list.
3356	*/
3357	prev = cur->parent;
3358	cur->parent = parent;
3359	if (cur->doc != parent->doc) {
3360	xmlSetTreeDoc(cur, parent->doc);
3361	}
3362	/* this check prevents a loop on tree-traversions if a developer
3363	* tries to add a node to its parent multiple times
3364	*/
3365	if (prev == parent)
3366	return(cur);
3367
3368	/*
3369	* Coalescing
3370	*/
3371	if ((parent->type == XML_TEXT_NODE) &&
3372	(parent->content != NULL) &&
3373	(parent != cur)) {
3374	xmlNodeAddContent(parent, cur->content);
3375	xmlFreeNode(cur);
3376	return(parent);
3377	}
3378	if (cur->type == XML_ATTRIBUTE_NODE) {
3379	if (parent->type != XML_ELEMENT_NODE)
3380	return(NULL);
3381	if (parent->properties != NULL) {
3382	/* check if an attribute with the same name exists */
3383	xmlAttrPtr lastattr;
3384
3385	if (cur->ns == NULL)
3386	lastattr = xmlHasNsProp(parent, cur->name, NULL);
3387	else
3388	lastattr = xmlHasNsProp(parent, cur->name, cur->ns->href);
3389	if ((lastattr != NULL) && (lastattr != (xmlAttrPtr) cur) && (lastattr->type != XML_ATTRIBUTE_DECL)) {
3390	/* different instance, destroy it (attributes must be unique) */
3391	xmlUnlinkNode((xmlNodePtr) lastattr);
3392	xmlFreeProp(lastattr);
3393	}
3394	if (lastattr == (xmlAttrPtr) cur)
3395	return(cur);
3396
3397	}
3398	if (parent->properties == NULL) {
3399	parent->properties = (xmlAttrPtr) cur;
3400	} else {
3401	/* find the end */
3402	xmlAttrPtr lastattr = parent->properties;
3403	while (lastattr->next != NULL) {
3404	lastattr = lastattr->next;
3405	}
3406	lastattr->next = (xmlAttrPtr) cur;
3407	((xmlAttrPtr) cur)->prev = lastattr;
3408	}
3409	} else {
3410	if (parent->children == NULL) {
3411	parent->children = cur;
3412	parent->last = cur;
3413	} else {
3414	prev = parent->last;
3415	prev->next = cur;
3416	cur->prev = prev;
3417	parent->last = cur;
3418	}
3419	}
3420	return(cur);
3421	}
3422
3423	/**
3424	* xmlGetLastChild:
3425	* @parent: the parent node
3426	*
3427	* Search the last child of a node.
3428	* Returns the last child or NULL if none.
3429	*/
3430	xmlNodePtr
3431	xmlGetLastChild(const xmlNode *parent) {
3432	if ((parent == NULL) \|\| (parent->type == XML_NAMESPACE_DECL)) {
3433	#ifdef DEBUG_TREE
3434	xmlGenericError(xmlGenericErrorContext,
3435	"xmlGetLastChild : parent == NULL\n");
3436	#endif
3437	return(NULL);
3438	}
3439	return(parent->last);
3440	}
3441
3442	#ifdef LIBXML_TREE_ENABLED
3443	/*
3444	* 5 interfaces from DOM ElementTraversal
3445	*/
3446
3447	/**
3448	* xmlChildElementCount:
3449	* @parent: the parent node
3450	*
3451	* Finds the current number of child nodes of that element which are
3452	* element nodes.
3453	* Note the handling of entities references is different than in
3454	* the W3C DOM element traversal spec since we don't have back reference
3455	* from entities content to entities references.
3456	*
3457	* Returns the count of element child or 0 if not available
3458	*/
3459	unsigned long
3460	xmlChildElementCount(xmlNodePtr parent) {
3461	unsigned long ret = 0;
3462	xmlNodePtr cur = NULL;
3463
3464	if (parent == NULL)
3465	return(0);
3466	switch (parent->type) {
3467	case XML_ELEMENT_NODE:
3468	case XML_ENTITY_NODE:
3469	case XML_DOCUMENT_NODE:
3470	case XML_DOCUMENT_FRAG_NODE:
3471	case XML_HTML_DOCUMENT_NODE:
3472	cur = parent->children;
3473	break;
3474	default:
3475	return(0);
3476	}
3477	while (cur != NULL) {
3478	if (cur->type == XML_ELEMENT_NODE)
3479	ret++;
3480	cur = cur->next;
3481	}
3482	return(ret);
3483	}
3484
3485	/**
3486	* xmlFirstElementChild:
3487	* @parent: the parent node
3488	*
3489	* Finds the first child node of that element which is a Element node
3490	* Note the handling of entities references is different than in
3491	* the W3C DOM element traversal spec since we don't have back reference
3492	* from entities content to entities references.
3493	*
3494	* Returns the first element child or NULL if not available
3495	*/
3496	xmlNodePtr
3497	xmlFirstElementChild(xmlNodePtr parent) {
3498	xmlNodePtr cur = NULL;
3499
3500	if (parent == NULL)
3501	return(NULL);
3502	switch (parent->type) {
3503	case XML_ELEMENT_NODE:
3504	case XML_ENTITY_NODE:
3505	case XML_DOCUMENT_NODE:
3506	case XML_DOCUMENT_FRAG_NODE:
3507	case XML_HTML_DOCUMENT_NODE:
3508	cur = parent->children;
3509	break;
3510	default:
3511	return(NULL);
3512	}
3513	while (cur != NULL) {
3514	if (cur->type == XML_ELEMENT_NODE)
3515	return(cur);
3516	cur = cur->next;
3517	}
3518	return(NULL);
3519	}
3520
3521	/**
3522	* xmlLastElementChild:
3523	* @parent: the parent node
3524	*
3525	* Finds the last child node of that element which is a Element node
3526	* Note the handling of entities references is different than in
3527	* the W3C DOM element traversal spec since we don't have back reference
3528	* from entities content to entities references.
3529	*
3530	* Returns the last element child or NULL if not available
3531	*/
3532	xmlNodePtr
3533	xmlLastElementChild(xmlNodePtr parent) {
3534	xmlNodePtr cur = NULL;
3535
3536	if (parent == NULL)
3537	return(NULL);
3538	switch (parent->type) {
3539	case XML_ELEMENT_NODE:
3540	case XML_ENTITY_NODE:
3541	case XML_DOCUMENT_NODE:
3542	case XML_DOCUMENT_FRAG_NODE:
3543	case XML_HTML_DOCUMENT_NODE:
3544	cur = parent->last;
3545	break;
3546	default:
3547	return(NULL);
3548	}
3549	while (cur != NULL) {
3550	if (cur->type == XML_ELEMENT_NODE)
3551	return(cur);
3552	cur = cur->prev;
3553	}
3554	return(NULL);
3555	}
3556
3557	/**
3558	* xmlPreviousElementSibling:
3559	* @node: the current node
3560	*
3561	* Finds the first closest previous sibling of the node which is an
3562	* element node.
3563	* Note the handling of entities references is different than in
3564	* the W3C DOM element traversal spec since we don't have back reference
3565	* from entities content to entities references.
3566	*
3567	* Returns the previous element sibling or NULL if not available
3568	*/
3569	xmlNodePtr
3570	xmlPreviousElementSibling(xmlNodePtr node) {
3571	if (node == NULL)
3572	return(NULL);
3573	switch (node->type) {
3574	case XML_ELEMENT_NODE:
3575	case XML_TEXT_NODE:
3576	case XML_CDATA_SECTION_NODE:
3577	case XML_ENTITY_REF_NODE:
3578	case XML_ENTITY_NODE:
3579	case XML_PI_NODE:
3580	case XML_COMMENT_NODE:
3581	case XML_XINCLUDE_START:
3582	case XML_XINCLUDE_END:
3583	node = node->prev;
3584	break;
3585	default:
3586	return(NULL);
3587	}
3588	while (node != NULL) {
3589	if (node->type == XML_ELEMENT_NODE)
3590	return(node);
3591	node = node->prev;
3592	}
3593	return(NULL);
3594	}
3595
3596	/**
3597	* xmlNextElementSibling:
3598	* @node: the current node
3599	*
3600	* Finds the first closest next sibling of the node which is an
3601	* element node.
3602	* Note the handling of entities references is different than in
3603	* the W3C DOM element traversal spec since we don't have back reference
3604	* from entities content to entities references.
3605	*
3606	* Returns the next element sibling or NULL if not available
3607	*/
3608	xmlNodePtr
3609	xmlNextElementSibling(xmlNodePtr node) {
3610	if (node == NULL)
3611	return(NULL);
3612	switch (node->type) {
3613	case XML_ELEMENT_NODE:
3614	case XML_TEXT_NODE:
3615	case XML_CDATA_SECTION_NODE:
3616	case XML_ENTITY_REF_NODE:
3617	case XML_ENTITY_NODE:
3618	case XML_PI_NODE:
3619	case XML_COMMENT_NODE:
3620	case XML_DTD_NODE:
3621	case XML_XINCLUDE_START:
3622	case XML_XINCLUDE_END:
3623	node = node->next;
3624	break;
3625	default:
3626	return(NULL);
3627	}
3628	while (node != NULL) {
3629	if (node->type == XML_ELEMENT_NODE)
3630	return(node);
3631	node = node->next;
3632	}
3633	return(NULL);
3634	}
3635
3636	#endif /* LIBXML_TREE_ENABLED */
3637
3638	/**
3639	* xmlFreeNodeList:
3640	* @cur: the first node in the list
3641	*
3642	* Free a node and all its siblings, this is a recursive behaviour, all
3643	* the children are freed too.
3644	*/
3645	void
3646	xmlFreeNodeList(xmlNodePtr cur) {
3647	xmlNodePtr next;
3648	xmlDictPtr dict = NULL;
3649
3650	if (cur == NULL) return;
3651	if (cur->type == XML_NAMESPACE_DECL) {
3652	xmlFreeNsList((xmlNsPtr) cur);
3653	return;
3654	}
3655	if ((cur->type == XML_DOCUMENT_NODE) \|\|
3656	#ifdef LIBXML_DOCB_ENABLED
3657	(cur->type == XML_DOCB_DOCUMENT_NODE) \|\|
3658	#endif
3659	(cur->type == XML_HTML_DOCUMENT_NODE)) {
3660	xmlFreeDoc((xmlDocPtr) cur);
3661	return;
3662	}
3663	if (cur->doc != NULL) dict = cur->doc->dict;
3664	while (cur != NULL) {
3665	next = cur->next;
3666	if (cur->type != XML_DTD_NODE) {
3667
3668	if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
3669	xmlDeregisterNodeDefaultValue(cur);
3670
3671	if ((cur->children != NULL) &&
3672	(cur->type != XML_ENTITY_REF_NODE))
3673	xmlFreeNodeList(cur->children);
3674	if (((cur->type == XML_ELEMENT_NODE) \|\|
3675	(cur->type == XML_XINCLUDE_START) \|\|
3676	(cur->type == XML_XINCLUDE_END)) &&
3677	(cur->properties != NULL))
3678	xmlFreePropList(cur->properties);
3679	if ((cur->type != XML_ELEMENT_NODE) &&
3680	(cur->type != XML_XINCLUDE_START) &&
3681	(cur->type != XML_XINCLUDE_END) &&
3682	(cur->type != XML_ENTITY_REF_NODE) &&
3683	(cur->content != (xmlChar *) &(cur->properties))) {
3684	DICT_FREE(cur->content)
3685	}
3686	if (((cur->type == XML_ELEMENT_NODE) \|\|
3687	(cur->type == XML_XINCLUDE_START) \|\|
3688	(cur->type == XML_XINCLUDE_END)) &&
3689	(cur->nsDef != NULL))
3690	xmlFreeNsList(cur->nsDef);
3691
3692	/*
3693	* When a node is a text node or a comment, it uses a global static
3694	* variable for the name of the node.
3695	* Otherwise the node name might come from the document's
3696	* dictionnary
3697	*/
3698	if ((cur->name != NULL) &&
3699	(cur->type != XML_TEXT_NODE) &&
3700	(cur->type != XML_COMMENT_NODE))
3701	DICT_FREE(cur->name)
3702	xmlFree(cur);
3703	}
3704	cur = next;
3705	}
3706	}
3707
3708	/**
3709	* xmlFreeNode:
3710	* @cur: the node
3711	*
3712	* Free a node, this is a recursive behaviour, all the children are freed too.
3713	* This doesn't unlink the child from the list, use xmlUnlinkNode() first.
3714	*/
3715	void
3716	xmlFreeNode(xmlNodePtr cur) {
3717	xmlDictPtr dict = NULL;
3718
3719	if (cur == NULL) return;
3720
3721	/* use xmlFreeDtd for DTD nodes */
3722	if (cur->type == XML_DTD_NODE) {
3723	xmlFreeDtd((xmlDtdPtr) cur);
3724	return;
3725	}
3726	if (cur->type == XML_NAMESPACE_DECL) {
3727	xmlFreeNs((xmlNsPtr) cur);
3728	return;
3729	}
3730	if (cur->type == XML_ATTRIBUTE_NODE) {
3731	xmlFreeProp((xmlAttrPtr) cur);
3732	return;
3733	}
3734
3735	if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))
3736	xmlDeregisterNodeDefaultValue(cur);
3737
3738	if (cur->doc != NULL) dict = cur->doc->dict;
3739
3740	if (cur->type == XML_ENTITY_DECL) {
3741	xmlEntityPtr ent = (xmlEntityPtr) cur;
3742	DICT_FREE(ent->SystemID);
3743	DICT_FREE(ent->ExternalID);
3744	}
3745	if ((cur->children != NULL) &&
3746	(cur->type != XML_ENTITY_REF_NODE))
3747	xmlFreeNodeList(cur->children);
3748	if (((cur->type == XML_ELEMENT_NODE) \|\|
3749	(cur->type == XML_XINCLUDE_START) \|\|
3750	(cur->type == XML_XINCLUDE_END)) &&
3751	(cur->properties != NULL))
3752	xmlFreePropList(cur->properties);
3753	if ((cur->type != XML_ELEMENT_NODE) &&
3754	(cur->content != NULL) &&
3755	(cur->type != XML_ENTITY_REF_NODE) &&
3756	(cur->type != XML_XINCLUDE_END) &&
3757	(cur->type != XML_XINCLUDE_START) &&
3758	(cur->content != (xmlChar *) &(cur->properties))) {
3759	DICT_FREE(cur->content)
3760	}
3761
3762	/*
3763	* When a node is a text node or a comment, it uses a global static
3764	* variable for the name of the node.
3765	* Otherwise the node name might come from the document's dictionnary
3766	*/
3767	if ((cur->name != NULL) &&
3768	(cur->type != XML_TEXT_NODE) &&
3769	(cur->type != XML_COMMENT_NODE))
3770	DICT_FREE(cur->name)
3771
3772	if (((cur->type == XML_ELEMENT_NODE) \|\|
3773	(cur->type == XML_XINCLUDE_START) \|\|
3774	(cur->type == XML_XINCLUDE_END)) &&
3775	(cur->nsDef != NULL))
3776	xmlFreeNsList(cur->nsDef);
3777	xmlFree(cur);
3778	}
3779
3780	/**
3781	* xmlUnlinkNode:
3782	* @cur: the node
3783	*
3784	* Unlink a node from it's current context, the node is not freed
3785	* If one need to free the node, use xmlFreeNode() routine after the
3786	* unlink to discard it.
3787	* Note that namespace nodes can't be unlinked as they do not have
3788	* pointer to their parent.
3789	*/
3790	void
3791	xmlUnlinkNode(xmlNodePtr cur) {
3792	if (cur == NULL) {
3793	#ifdef DEBUG_TREE
3794	xmlGenericError(xmlGenericErrorContext,
3795	"xmlUnlinkNode : node == NULL\n");
3796	#endif
3797	return;
3798	}
3799	if (cur->type == XML_NAMESPACE_DECL)
3800	return;
3801	if (cur->type == XML_DTD_NODE) {
3802	xmlDocPtr doc;
3803	doc = cur->doc;
3804	if (doc != NULL) {
3805	if (doc->intSubset == (xmlDtdPtr) cur)
3806	doc->intSubset = NULL;
3807	if (doc->extSubset == (xmlDtdPtr) cur)
3808	doc->extSubset = NULL;
3809	}
3810	}
3811	if (cur->type == XML_ENTITY_DECL) {
3812	xmlDocPtr doc;
3813	doc = cur->doc;
3814	if (doc != NULL) {
3815	if (doc->intSubset != NULL) {
3816	if (xmlHashLookup(doc->intSubset->entities, cur->name) == cur)
3817	xmlHashRemoveEntry(doc->intSubset->entities, cur->name,
3818	NULL);
3819	if (xmlHashLookup(doc->intSubset->pentities, cur->name) == cur)
3820	xmlHashRemoveEntry(doc->intSubset->pentities, cur->name,
3821	NULL);
3822	}
3823	if (doc->extSubset != NULL) {
3824	if (xmlHashLookup(doc->extSubset->entities, cur->name) == cur)
3825	xmlHashRemoveEntry(doc->extSubset->entities, cur->name,
3826	NULL);
3827	if (xmlHashLookup(doc->extSubset->pentities, cur->name) == cur)
3828	xmlHashRemoveEntry(doc->extSubset->pentities, cur->name,
3829	NULL);
3830	}
3831	}
3832	}
3833	if (cur->parent != NULL) {
3834	xmlNodePtr parent;
3835	parent = cur->parent;
3836	if (cur->type == XML_ATTRIBUTE_NODE) {
3837	if (parent->properties == (xmlAttrPtr) cur)
3838	parent->properties = ((xmlAttrPtr) cur)->next;
3839	} else {
3840	if (parent->children == cur)
3841	parent->children = cur->next;
3842	if (parent->last == cur)
3843	parent->last = cur->prev;
3844	}
3845	cur->parent = NULL;
3846	}
3847	if (cur->next != NULL)
3848	cur->next->prev = cur->prev;
3849	if (cur->prev != NULL)
3850	cur->prev->next = cur->next;
3851	cur->next = cur->prev = NULL;
3852	}
3853
3854	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_WRITER_ENABLED)
3855	/**
3856	* xmlReplaceNode:
3857	* @old: the old node
3858	* @cur: the node
3859	*
3860	* Unlink the old node from its current context, prune the new one
3861	* at the same place. If @cur was already inserted in a document it is
3862	* first unlinked from its existing context.
3863	*
3864	* Returns the @old node
3865	*/
3866	xmlNodePtr
3867	xmlReplaceNode(xmlNodePtr old, xmlNodePtr cur) {
3868	if (old == cur) return(NULL);
3869	if ((old == NULL) \|\| (old->type == XML_NAMESPACE_DECL) \|\|
3870	(old->parent == NULL)) {
3871	#ifdef DEBUG_TREE
3872	xmlGenericError(xmlGenericErrorContext,
3873	"xmlReplaceNode : old == NULL or without parent\n");
3874	#endif
3875	return(NULL);
3876	}
3877	if ((cur == NULL) \|\| (cur->type == XML_NAMESPACE_DECL)) {
3878	xmlUnlinkNode(old);
3879	return(old);
3880	}
3881	if (cur == old) {
3882	return(old);
3883	}
3884	if ((old->type==XML_ATTRIBUTE_NODE) && (cur->type!=XML_ATTRIBUTE_NODE)) {
3885	#ifdef DEBUG_TREE
3886	xmlGenericError(xmlGenericErrorContext,
3887	"xmlReplaceNode : Trying to replace attribute node with other node type\n");
3888	#endif
3889	return(old);
3890	}
3891	if ((cur->type==XML_ATTRIBUTE_NODE) && (old->type!=XML_ATTRIBUTE_NODE)) {
3892	#ifdef DEBUG_TREE
3893	xmlGenericError(xmlGenericErrorContext,
3894	"xmlReplaceNode : Trying to replace a non-attribute node with attribute node\n");
3895	#endif
3896	return(old);
3897	}
3898	xmlUnlinkNode(cur);
3899	xmlSetTreeDoc(cur, old->doc);
3900	cur->parent = old->parent;
3901	cur->next = old->next;
3902	if (cur->next != NULL)
3903	cur->next->prev = cur;
3904	cur->prev = old->prev;
3905	if (cur->prev != NULL)
3906	cur->prev->next = cur;
3907	if (cur->parent != NULL) {
3908	if (cur->type == XML_ATTRIBUTE_NODE) {
3909	if (cur->parent->properties == (xmlAttrPtr)old)
3910	cur->parent->properties = ((xmlAttrPtr) cur);
3911	} else {
3912	if (cur->parent->children == old)
3913	cur->parent->children = cur;
3914	if (cur->parent->last == old)
3915	cur->parent->last = cur;
3916	}
3917	}
3918	old->next = old->prev = NULL;
3919	old->parent = NULL;
3920	return(old);
3921	}
3922	#endif /* LIBXML_TREE_ENABLED */
3923
3924	/************************************************************************
3925	* *
3926	* Copy operations *
3927	* *
3928	************************************************************************/
3929
3930	/**
3931	* xmlCopyNamespace:
3932	* @cur: the namespace
3933	*
3934	* Do a copy of the namespace.
3935	*
3936	* Returns: a new #xmlNsPtr, or NULL in case of error.
3937	*/
3938	xmlNsPtr
3939	xmlCopyNamespace(xmlNsPtr cur) {
3940	xmlNsPtr ret;
3941
3942	if (cur == NULL) return(NULL);
3943	switch (cur->type) {
3944	case XML_LOCAL_NAMESPACE:
3945	ret = xmlNewNs(NULL, cur->href, cur->prefix);
3946	break;
3947	default:
3948	#ifdef DEBUG_TREE
3949	xmlGenericError(xmlGenericErrorContext,
3950	"xmlCopyNamespace: invalid type %d\n", cur->type);
3951	#endif
3952	return(NULL);
3953	}
3954	return(ret);
3955	}
3956
3957	/**
3958	* xmlCopyNamespaceList:
3959	* @cur: the first namespace
3960	*
3961	* Do a copy of an namespace list.
3962	*
3963	* Returns: a new #xmlNsPtr, or NULL in case of error.
3964	*/
3965	xmlNsPtr
3966	xmlCopyNamespaceList(xmlNsPtr cur) {
3967	xmlNsPtr ret = NULL;
3968	xmlNsPtr p = NULL,q;
3969
3970	while (cur != NULL) {
3971	q = xmlCopyNamespace(cur);
3972	if (p == NULL) {
3973	ret = p = q;
3974	} else {
3975	p->next = q;
3976	p = q;
3977	}
3978	cur = cur->next;
3979	}
3980	return(ret);
3981	}
3982
3983	static xmlNodePtr
3984	xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent);
3985
3986	static xmlAttrPtr
3987	xmlCopyPropInternal(xmlDocPtr doc, xmlNodePtr target, xmlAttrPtr cur) {
3988	xmlAttrPtr ret;
3989
3990	if (cur == NULL) return(NULL);
3991	if ((target != NULL) && (target->type != XML_ELEMENT_NODE))
3992	return(NULL);
3993	if (target != NULL)
3994	ret = xmlNewDocProp(target->doc, cur->name, NULL);
3995	else if (doc != NULL)
3996	ret = xmlNewDocProp(doc, cur->name, NULL);
3997	else if (cur->parent != NULL)
3998	ret = xmlNewDocProp(cur->parent->doc, cur->name, NULL);
3999	else if (cur->children != NULL)
4000	ret = xmlNewDocProp(cur->children->doc, cur->name, NULL);
4001	else
4002	ret = xmlNewDocProp(NULL, cur->name, NULL);
4003	if (ret == NULL) return(NULL);
4004	ret->parent = target;
4005
4006	if ((cur->ns != NULL) && (target != NULL)) {
4007	xmlNsPtr ns;
4008
4009	ns = xmlSearchNs(target->doc, target, cur->ns->prefix);
4010	if (ns == NULL) {
4011	/*
4012	* Humm, we are copying an element whose namespace is defined
4013	* out of the new tree scope. Search it in the original tree
4014	* and add it at the top of the new tree
4015	*/
4016	ns = xmlSearchNs(cur->doc, cur->parent, cur->ns->prefix);
4017	if (ns != NULL) {
4018	xmlNodePtr root = target;
4019	xmlNodePtr pred = NULL;
4020
4021	while (root->parent != NULL) {
4022	pred = root;
4023	root = root->parent;
4024	}
4025	if (root == (xmlNodePtr) target->doc) {
4026	/* correct possibly cycling above the document elt */
4027	root = pred;
4028	}
4029	ret->ns = xmlNewNs(root, ns->href, ns->prefix);
4030	}
4031	} else {
4032	/*
4033	* we have to find something appropriate here since
4034	* we cant be sure, that the namespce we found is identified
4035	* by the prefix
4036	*/
4037	if (xmlStrEqual(ns->href, cur->ns->href)) {
4038	/* this is the nice case */
4039	ret->ns = ns;
4040	} else {
4041	/*
4042	* we are in trouble: we need a new reconcilied namespace.
4043	* This is expensive
4044	*/
4045	ret->ns = xmlNewReconciliedNs(target->doc, target, cur->ns);
4046	}
4047	}
4048
4049	} else
4050	ret->ns = NULL;
4051
4052	if (cur->children != NULL) {
4053	xmlNodePtr tmp;
4054
4055	ret->children = xmlStaticCopyNodeList(cur->children, ret->doc, (xmlNodePtr) ret);
4056	ret->last = NULL;
4057	tmp = ret->children;
4058	while (tmp != NULL) {
4059	/* tmp->parent = (xmlNodePtr)ret; */
4060	if (tmp->next == NULL)
4061	ret->last = tmp;
4062	tmp = tmp->next;
4063	}
4064	}
4065	/*
4066	* Try to handle IDs
4067	*/
4068	if ((target!= NULL) && (cur!= NULL) &&
4069	(target->doc != NULL) && (cur->doc != NULL) &&
4070	(cur->doc->ids != NULL) && (cur->parent != NULL)) {
4071	if (xmlIsID(cur->doc, cur->parent, cur)) {
4072	xmlChar *id;
4073
4074	id = xmlNodeListGetString(cur->doc, cur->children, 1);
4075	if (id != NULL) {
4076	xmlAddID(NULL, target->doc, id, ret);
4077	xmlFree(id);
4078	}
4079	}
4080	}
4081	return(ret);
4082	}
4083
4084	/**
4085	* xmlCopyProp:
4086	* @target: the element where the attribute will be grafted
4087	* @cur: the attribute
4088	*
4089	* Do a copy of the attribute.
4090	*
4091	* Returns: a new #xmlAttrPtr, or NULL in case of error.
4092	*/
4093	xmlAttrPtr
4094	xmlCopyProp(xmlNodePtr target, xmlAttrPtr cur) {
4095	return xmlCopyPropInternal(NULL, target, cur);
4096	}
4097
4098	/**
4099	* xmlCopyPropList:
4100	* @target: the element where the attributes will be grafted
4101	* @cur: the first attribute
4102	*
4103	* Do a copy of an attribute list.
4104	*
4105	* Returns: a new #xmlAttrPtr, or NULL in case of error.
4106	*/
4107	xmlAttrPtr
4108	xmlCopyPropList(xmlNodePtr target, xmlAttrPtr cur) {
4109	xmlAttrPtr ret = NULL;
4110	xmlAttrPtr p = NULL,q;
4111
4112	if ((target != NULL) && (target->type != XML_ELEMENT_NODE))
4113	return(NULL);
4114	while (cur != NULL) {
4115	q = xmlCopyProp(target, cur);
4116	if (q == NULL)
4117	return(NULL);
4118	if (p == NULL) {
4119	ret = p = q;
4120	} else {
4121	p->next = q;
4122	q->prev = p;
4123	p = q;
4124	}
4125	cur = cur->next;
4126	}
4127	return(ret);
4128	}
4129
4130	/*
4131	* NOTE about the CopyNode operations !
4132	*
4133	* They are split into external and internal parts for one
4134	* tricky reason: namespaces. Doing a direct copy of a node
4135	* say RPM:Copyright without changing the namespace pointer to
4136	* something else can produce stale links. One way to do it is
4137	* to keep a reference counter but this doesn't work as soon
4138	* as one move the element or the subtree out of the scope of
4139	* the existing namespace. The actual solution seems to add
4140	* a copy of the namespace at the top of the copied tree if
4141	* not available in the subtree.
4142	* Hence two functions, the public front-end call the inner ones
4143	* The argument "recursive" normally indicates a recursive copy
4144	* of the node with values 0 (no) and 1 (yes). For XInclude,
4145	* however, we allow a value of 2 to indicate copy properties and
4146	* namespace info, but don't recurse on children.
4147	*/
4148
4149	static xmlNodePtr
4150	xmlStaticCopyNode(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent,
4151	int extended) {
4152	xmlNodePtr ret;
4153
4154	if (node == NULL) return(NULL);
4155	switch (node->type) {
4156	case XML_TEXT_NODE:
4157	case XML_CDATA_SECTION_NODE:
4158	case XML_ELEMENT_NODE:
4159	case XML_DOCUMENT_FRAG_NODE:
4160	case XML_ENTITY_REF_NODE:
4161	case XML_ENTITY_NODE:
4162	case XML_PI_NODE:
4163	case XML_COMMENT_NODE:
4164	case XML_XINCLUDE_START:
4165	case XML_XINCLUDE_END:
4166	break;
4167	case XML_ATTRIBUTE_NODE:
4168	return((xmlNodePtr) xmlCopyPropInternal(doc, parent, (xmlAttrPtr) node));
4169	case XML_NAMESPACE_DECL:
4170	return((xmlNodePtr) xmlCopyNamespaceList((xmlNsPtr) node));
4171
4172	case XML_DOCUMENT_NODE:
4173	case XML_HTML_DOCUMENT_NODE:
4174	#ifdef LIBXML_DOCB_ENABLED
4175	case XML_DOCB_DOCUMENT_NODE:
4176	#endif
4177	#ifdef LIBXML_TREE_ENABLED
4178	return((xmlNodePtr) xmlCopyDoc((xmlDocPtr) node, extended));
4179	#endif /* LIBXML_TREE_ENABLED */
4180	case XML_DOCUMENT_TYPE_NODE:
4181	case XML_NOTATION_NODE:
4182	case XML_DTD_NODE:
4183	case XML_ELEMENT_DECL:
4184	case XML_ATTRIBUTE_DECL:
4185	case XML_ENTITY_DECL:
4186	return(NULL);
4187	}
4188
4189	/*
4190	* Allocate a new node and fill the fields.
4191	*/
4192	ret = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
4193	if (ret == NULL) {
4194	xmlTreeErrMemory("copying node");
4195	return(NULL);
4196	}
4197	memset(ret, 0, sizeof(xmlNode));
4198	ret->type = node->type;
4199
4200	ret->doc = doc;
4201	ret->parent = parent;
4202	if (node->name == xmlStringText)
4203	ret->name = xmlStringText;
4204	else if (node->name == xmlStringTextNoenc)
4205	ret->name = xmlStringTextNoenc;
4206	else if (node->name == xmlStringComment)
4207	ret->name = xmlStringComment;
4208	else if (node->name != NULL) {
4209	if ((doc != NULL) && (doc->dict != NULL))
4210	ret->name = xmlDictLookup(doc->dict, node->name, -1);
4211	else
4212	ret->name = xmlStrdup(node->name);
4213	}
4214	if ((node->type != XML_ELEMENT_NODE) &&
4215	(node->content != NULL) &&
4216	(node->type != XML_ENTITY_REF_NODE) &&
4217	(node->type != XML_XINCLUDE_END) &&
4218	(node->type != XML_XINCLUDE_START)) {
4219	ret->content = xmlStrdup(node->content);
4220	}else{
4221	if (node->type == XML_ELEMENT_NODE)
4222	ret->line = node->line;
4223	}
4224	if (parent != NULL) {
4225	xmlNodePtr tmp;
4226
4227	/*
4228	* this is a tricky part for the node register thing:
4229	* in case ret does get coalesced in xmlAddChild
4230	* the deregister-node callback is called; so we register ret now already
4231	*/
4232	if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))
4233	xmlRegisterNodeDefaultValue((xmlNodePtr)ret);
4234
4235	tmp = xmlAddChild(parent, ret);
4236	/* node could have coalesced */
4237	if (tmp != ret)
4238	return(tmp);
4239	}
4240
4241	if (!extended)
4242	goto out;
4243	if (((node->type == XML_ELEMENT_NODE) \|\|
4244	(node->type == XML_XINCLUDE_START)) && (node->nsDef != NULL))
4245	ret->nsDef = xmlCopyNamespaceList(node->nsDef);
4246
4247	if (node->ns != NULL) {
4248	xmlNsPtr ns;
4249
4250	ns = xmlSearchNs(doc, ret, node->ns->prefix);
4251	if (ns == NULL) {
4252	/*
4253	* Humm, we are copying an element whose namespace is defined
4254	* out of the new tree scope. Search it in the original tree
4255	* and add it at the top of the new tree
4256	*/
4257	ns = xmlSearchNs(node->doc, node, node->ns->prefix);
4258	if (ns != NULL) {
4259	xmlNodePtr root = ret;
4260
4261	while (root->parent != NULL) root = root->parent;
4262	ret->ns = xmlNewNs(root, ns->href, ns->prefix);
4263	} else {
4264	ret->ns = xmlNewReconciliedNs(doc, ret, node->ns);
4265	}
4266	} else {
4267	/*
4268	* reference the existing namespace definition in our own tree.
4269	*/
4270	ret->ns = ns;
4271	}
4272	}
4273	if (((node->type == XML_ELEMENT_NODE) \|\|
4274	(node->type == XML_XINCLUDE_START)) && (node->properties != NULL))
4275	ret->properties = xmlCopyPropList(ret, node->properties);
4276	if (node->type == XML_ENTITY_REF_NODE) {
4277	if ((doc == NULL) \|\| (node->doc != doc)) {
4278	/*
4279	* The copied node will go into a separate document, so
4280	* to avoid dangling references to the ENTITY_DECL node
4281	* we cannot keep the reference. Try to find it in the
4282	* target document.
4283	*/
4284	ret->children = (xmlNodePtr) xmlGetDocEntity(doc, ret->name);
4285	} else {
4286	ret->children = node->children;
4287	}
4288	ret->last = ret->children;
4289	} else if ((node->children != NULL) && (extended != 2)) {
4290	ret->children = xmlStaticCopyNodeList(node->children, doc, ret);
4291	UPDATE_LAST_CHILD_AND_PARENT(ret)
4292	}
4293
4294	out:
4295	/* if parent != NULL we already registered the node above */
4296	if ((parent == NULL) &&
4297	((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue)))
4298	xmlRegisterNodeDefaultValue((xmlNodePtr)ret);
4299	return(ret);
4300	}
4301
4302	static xmlNodePtr
4303	xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent) {
4304	xmlNodePtr ret = NULL;
4305	xmlNodePtr p = NULL,q;
4306
4307	while (node != NULL) {
4308	#ifdef LIBXML_TREE_ENABLED
4309	if (node->type == XML_DTD_NODE ) {
4310	if (doc == NULL) {
4311	node = node->next;
4312	continue;
4313	}
4314	if (doc->intSubset == NULL) {
4315	q = (xmlNodePtr) xmlCopyDtd( (xmlDtdPtr) node );
4316	if (q == NULL) return(NULL);
4317	q->doc = doc;
4318	q->parent = parent;
4319	doc->intSubset = (xmlDtdPtr) q;
4320	xmlAddChild(parent, q);
4321	} else {
4322	q = (xmlNodePtr) doc->intSubset;
4323	xmlAddChild(parent, q);
4324	}
4325	} else
4326	#endif /* LIBXML_TREE_ENABLED */
4327	q = xmlStaticCopyNode(node, doc, parent, 1);
4328	if (q == NULL) return(NULL);
4329	if (ret == NULL) {
4330	q->prev = NULL;
4331	ret = p = q;
4332	} else if (p != q) {
4333	/* the test is required if xmlStaticCopyNode coalesced 2 text nodes */
4334	p->next = q;
4335	q->prev = p;
4336	p = q;
4337	}
4338	node = node->next;
4339	}
4340	return(ret);
4341	}
4342
4343	/**
4344	* xmlCopyNode:
4345	* @node: the node
4346	* @extended: if 1 do a recursive copy (properties, namespaces and children
4347	* when applicable)
4348	* if 2 copy properties and namespaces (when applicable)
4349	*
4350	* Do a copy of the node.
4351	*
4352	* Returns: a new #xmlNodePtr, or NULL in case of error.
4353	*/
4354	xmlNodePtr
4355	xmlCopyNode(xmlNodePtr node, int extended) {
4356	xmlNodePtr ret;
4357
4358	ret = xmlStaticCopyNode(node, NULL, NULL, extended);
4359	return(ret);
4360	}
4361
4362	/**
4363	* xmlDocCopyNode:
4364	* @node: the node
4365	* @doc: the document
4366	* @extended: if 1 do a recursive copy (properties, namespaces and children
4367	* when applicable)
4368	* if 2 copy properties and namespaces (when applicable)
4369	*
4370	* Do a copy of the node to a given document.
4371	*
4372	* Returns: a new #xmlNodePtr, or NULL in case of error.
4373	*/
4374	xmlNodePtr
4375	xmlDocCopyNode(xmlNodePtr node, xmlDocPtr doc, int extended) {
4376	xmlNodePtr ret;
4377
4378	ret = xmlStaticCopyNode(node, doc, NULL, extended);
4379	return(ret);
4380	}
4381
4382	/**
4383	* xmlDocCopyNodeList:
4384	* @doc: the target document
4385	* @node: the first node in the list.
4386	*
4387	* Do a recursive copy of the node list.
4388	*
4389	* Returns: a new #xmlNodePtr, or NULL in case of error.
4390	*/
4391	xmlNodePtr xmlDocCopyNodeList(xmlDocPtr doc, xmlNodePtr node) {
4392	xmlNodePtr ret = xmlStaticCopyNodeList(node, doc, NULL);
4393	return(ret);
4394	}
4395
4396	/**
4397	* xmlCopyNodeList:
4398	* @node: the first node in the list.
4399	*
4400	* Do a recursive copy of the node list.
4401	* Use xmlDocCopyNodeList() if possible to ensure string interning.
4402	*
4403	* Returns: a new #xmlNodePtr, or NULL in case of error.
4404	*/
4405	xmlNodePtr xmlCopyNodeList(xmlNodePtr node) {
4406	xmlNodePtr ret = xmlStaticCopyNodeList(node, NULL, NULL);
4407	return(ret);
4408	}
4409
4410	#if defined(LIBXML_TREE_ENABLED)
4411	/**
4412	* xmlCopyDtd:
4413	* @dtd: the dtd
4414	*
4415	* Do a copy of the dtd.
4416	*
4417	* Returns: a new #xmlDtdPtr, or NULL in case of error.
4418	*/
4419	xmlDtdPtr
4420	xmlCopyDtd(xmlDtdPtr dtd) {
4421	xmlDtdPtr ret;
4422	xmlNodePtr cur, p = NULL, q;
4423
4424	if (dtd == NULL) return(NULL);
4425	ret = xmlNewDtd(NULL, dtd->name, dtd->ExternalID, dtd->SystemID);
4426	if (ret == NULL) return(NULL);
4427	if (dtd->entities != NULL)
4428	ret->entities = (void *) xmlCopyEntitiesTable(
4429	(xmlEntitiesTablePtr) dtd->entities);
4430	if (dtd->notations != NULL)
4431	ret->notations = (void *) xmlCopyNotationTable(
4432	(xmlNotationTablePtr) dtd->notations);
4433	if (dtd->elements != NULL)
4434	ret->elements = (void *) xmlCopyElementTable(
4435	(xmlElementTablePtr) dtd->elements);
4436	if (dtd->attributes != NULL)
4437	ret->attributes = (void *) xmlCopyAttributeTable(
4438	(xmlAttributeTablePtr) dtd->attributes);
4439	if (dtd->pentities != NULL)
4440	ret->pentities = (void *) xmlCopyEntitiesTable(
4441	(xmlEntitiesTablePtr) dtd->pentities);
4442
4443	cur = dtd->children;
4444	while (cur != NULL) {
4445	q = NULL;
4446
4447	if (cur->type == XML_ENTITY_DECL) {
4448	xmlEntityPtr tmp = (xmlEntityPtr) cur;
4449	switch (tmp->etype) {
4450	case XML_INTERNAL_GENERAL_ENTITY:
4451	case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
4452	case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
4453	q = (xmlNodePtr) xmlGetEntityFromDtd(ret, tmp->name);
4454	break;
4455	case XML_INTERNAL_PARAMETER_ENTITY:
4456	case XML_EXTERNAL_PARAMETER_ENTITY:
4457	q = (xmlNodePtr)
4458	xmlGetParameterEntityFromDtd(ret, tmp->name);
4459	break;
4460	case XML_INTERNAL_PREDEFINED_ENTITY:
4461	break;
4462	}
4463	} else if (cur->type == XML_ELEMENT_DECL) {
4464	xmlElementPtr tmp = (xmlElementPtr) cur;
4465	q = (xmlNodePtr)
4466	xmlGetDtdQElementDesc(ret, tmp->name, tmp->prefix);
4467	} else if (cur->type == XML_ATTRIBUTE_DECL) {
4468	xmlAttributePtr tmp = (xmlAttributePtr) cur;
4469	q = (xmlNodePtr)
4470	xmlGetDtdQAttrDesc(ret, tmp->elem, tmp->name, tmp->prefix);
4471	} else if (cur->type == XML_COMMENT_NODE) {
4472	q = xmlCopyNode(cur, 0);
4473	}
4474
4475	if (q == NULL) {
4476	cur = cur->next;
4477	continue;
4478	}
4479
4480	if (p == NULL)
4481	ret->children = q;
4482	else
4483	p->next = q;
4484
4485	q->prev = p;
4486	q->parent = (xmlNodePtr) ret;
4487	q->next = NULL;
4488	ret->last = q;
4489	p = q;
4490	cur = cur->next;
4491	}
4492
4493	return(ret);
4494	}
4495	#endif
4496
4497	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_SCHEMAS_ENABLED)
4498	/**
4499	* xmlCopyDoc:
4500	* @doc: the document
4501	* @recursive: if not zero do a recursive copy.
4502	*
4503	* Do a copy of the document info. If recursive, the content tree will
4504	* be copied too as well as DTD, namespaces and entities.
4505	*
4506	* Returns: a new #xmlDocPtr, or NULL in case of error.
4507	*/
4508	xmlDocPtr
4509	xmlCopyDoc(xmlDocPtr doc, int recursive) {
4510	xmlDocPtr ret;
4511
4512	if (doc == NULL) return(NULL);
4513	ret = xmlNewDoc(doc->version);
4514	if (ret == NULL) return(NULL);
4515	if (doc->name != NULL)
4516	ret->name = xmlMemStrdup(doc->name);
4517	if (doc->encoding != NULL)
4518	ret->encoding = xmlStrdup(doc->encoding);
4519	if (doc->URL != NULL)
4520	ret->URL = xmlStrdup(doc->URL);
4521	ret->charset = doc->charset;
4522	ret->compression = doc->compression;
4523	ret->standalone = doc->standalone;
4524	if (!recursive) return(ret);
4525
4526	ret->last = NULL;
4527	ret->children = NULL;
4528	#ifdef LIBXML_TREE_ENABLED
4529	if (doc->intSubset != NULL) {
4530	ret->intSubset = xmlCopyDtd(doc->intSubset);
4531	if (ret->intSubset == NULL) {
4532	xmlFreeDoc(ret);
4533	return(NULL);
4534	}
4535	xmlSetTreeDoc((xmlNodePtr)ret->intSubset, ret);
4536	ret->intSubset->parent = ret;
4537	}
4538	#endif
4539	if (doc->oldNs != NULL)
4540	ret->oldNs = xmlCopyNamespaceList(doc->oldNs);
4541	if (doc->children != NULL) {
4542	xmlNodePtr tmp;
4543
4544	ret->children = xmlStaticCopyNodeList(doc->children, ret,
4545	(xmlNodePtr)ret);
4546	ret->last = NULL;
4547	tmp = ret->children;
4548	while (tmp != NULL) {
4549	if (tmp->next == NULL)
4550	ret->last = tmp;
4551	tmp = tmp->next;
4552	}
4553	}
4554	return(ret);
4555	}
4556	#endif /* LIBXML_TREE_ENABLED */
4557
4558	/************************************************************************
4559	* *
4560	* Content access functions *
4561	* *
4562	************************************************************************/
4563
4564	/**
4565	* xmlGetLineNoInternal:
4566	* @node: valid node
4567	* @depth: used to limit any risk of recursion
4568	*
4569	* Get line number of @node.
4570	* Try to override the limitation of lines being store in 16 bits ints
4571	*
4572	* Returns the line number if successful, -1 otherwise
4573	*/
4574	static long
4575	xmlGetLineNoInternal(const xmlNode *node, int depth)
4576	{
4577	long result = -1;
4578
4579	if (depth >= 5)
4580	return(-1);
4581
4582	if (!node)
4583	return result;
4584	if ((node->type == XML_ELEMENT_NODE) \|\|
4585	(node->type == XML_TEXT_NODE) \|\|
4586	(node->type == XML_COMMENT_NODE) \|\|
4587	(node->type == XML_PI_NODE)) {
4588	if (node->line == 65535) {
4589	if ((node->type == XML_TEXT_NODE) && (node->psvi != NULL))
4590	result = (long) node->psvi;
4591	else if ((node->type == XML_ELEMENT_NODE) &&
4592	(node->children != NULL))
4593	result = xmlGetLineNoInternal(node->children, depth + 1);
4594	else if (node->next != NULL)
4595	result = xmlGetLineNoInternal(node->next, depth + 1);
4596	else if (node->prev != NULL)
4597	result = xmlGetLineNoInternal(node->prev, depth + 1);
4598	}
4599	if ((result == -1) \|\| (result == 65535))
4600	result = (long) node->line;
4601	} else if ((node->prev != NULL) &&
4602	((node->prev->type == XML_ELEMENT_NODE) \|\|
4603	(node->prev->type == XML_TEXT_NODE) \|\|
4604	(node->prev->type == XML_COMMENT_NODE) \|\|
4605	(node->prev->type == XML_PI_NODE)))
4606	result = xmlGetLineNoInternal(node->prev, depth + 1);
4607	else if ((node->parent != NULL) &&
4608	(node->parent->type == XML_ELEMENT_NODE))
4609	result = xmlGetLineNoInternal(node->parent, depth + 1);
4610
4611	return result;
4612	}
4613
4614	/**
4615	* xmlGetLineNo:
4616	* @node: valid node
4617	*
4618	* Get line number of @node.
4619	* Try to override the limitation of lines being store in 16 bits ints
4620	* if XML_PARSE_BIG_LINES parser option was used
4621	*
4622	* Returns the line number if successful, -1 otherwise
4623	*/
4624	long
4625	xmlGetLineNo(const xmlNode *node)
4626	{
4627	return(xmlGetLineNoInternal(node, 0));
4628	}
4629
4630	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_DEBUG_ENABLED)
4631	/**
4632	* xmlGetNodePath:
4633	* @node: a node
4634	*
4635	* Build a structure based Path for the given node
4636	*
4637	* Returns the new path or NULL in case of error. The caller must free
4638	* the returned string
4639	*/
4640	xmlChar *
4641	xmlGetNodePath(const xmlNode *node)
4642	{
4643	const xmlNode cur, tmp, *next;
4644	xmlChar buffer = NULL, temp;
4645	size_t buf_len;
4646	xmlChar *buf;
4647	const char *sep;
4648	const char *name;
4649	char nametemp[100];
4650	int occur = 0, generic;
4651
4652	if ((node == NULL) \|\| (node->type == XML_NAMESPACE_DECL))
4653	return (NULL);
4654
4655	buf_len = 500;
4656	buffer = (xmlChar ) xmlMallocAtomic(buf_len sizeof(xmlChar));
4657	if (buffer == NULL) {
4658	xmlTreeErrMemory("getting node path");
4659	return (NULL);
4660	}
4661	buf = (xmlChar ) xmlMallocAtomic(buf_len sizeof(xmlChar));
4662	if (buf == NULL) {
4663	xmlTreeErrMemory("getting node path");
4664	xmlFree(buffer);
4665	return (NULL);
4666	}
4667
4668	buffer[0] = 0;
4669	cur = node;
4670	do {
4671	name = "";
4672	sep = "?";
4673	occur = 0;
4674	if ((cur->type == XML_DOCUMENT_NODE) \|\|
4675	(cur->type == XML_HTML_DOCUMENT_NODE)) {
4676	if (buffer[0] == '/')
4677	break;
4678	sep = "/";
4679	next = NULL;
4680	} else if (cur->type == XML_ELEMENT_NODE) {
4681	generic = 0;
4682	sep = "/";
4683	name = (const char *) cur->name;
4684	if (cur->ns) {
4685	if (cur->ns->prefix != NULL) {
4686	snprintf(nametemp, sizeof(nametemp) - 1, "%s:%s",
4687	(char )cur->ns->prefix, (char )cur->name);
4688	nametemp[sizeof(nametemp) - 1] = 0;
4689	name = nametemp;
4690	} else {
4691	/*
4692	* We cannot express named elements in the default
4693	* namespace, so use "*".
4694	*/
4695	generic = 1;
4696	name = "*";
4697	}
4698	}
4699	next = cur->parent;
4700
4701	/*
4702	* Thumbler index computation
4703	* TODO: the ocurence test seems bogus for namespaced names
4704	*/
4705	tmp = cur->prev;
4706	while (tmp != NULL) {
4707	if ((tmp->type == XML_ELEMENT_NODE) &&
4708	(generic \|\|
4709	(xmlStrEqual(cur->name, tmp->name) &&
4710	((tmp->ns == cur->ns) \|\|
4711	((tmp->ns != NULL) && (cur->ns != NULL) &&
4712	(xmlStrEqual(cur->ns->prefix, tmp->ns->prefix)))))))
4713	occur++;
4714	tmp = tmp->prev;
4715	}
4716	if (occur == 0) {
4717	tmp = cur->next;
4718	while (tmp != NULL && occur == 0) {
4719	if ((tmp->type == XML_ELEMENT_NODE) &&
4720	(generic \|\|
4721	(xmlStrEqual(cur->name, tmp->name) &&
4722	((tmp->ns == cur->ns) \|\|
4723	((tmp->ns != NULL) && (cur->ns != NULL) &&
4724	(xmlStrEqual(cur->ns->prefix, tmp->ns->prefix)))))))
4725	occur++;
4726	tmp = tmp->next;
4727	}
4728	if (occur != 0)
4729	occur = 1;
4730	} else
4731	occur++;
4732	} else if (cur->type == XML_COMMENT_NODE) {
4733	sep = "/";
4734	name = "comment()";
4735	next = cur->parent;
4736
4737	/*
4738	* Thumbler index computation
4739	*/
4740	tmp = cur->prev;
4741	while (tmp != NULL) {
4742	if (tmp->type == XML_COMMENT_NODE)
4743	occur++;
4744	tmp = tmp->prev;
4745	}
4746	if (occur == 0) {
4747	tmp = cur->next;
4748	while (tmp != NULL && occur == 0) {
4749	if (tmp->type == XML_COMMENT_NODE)
4750	occur++;
4751	tmp = tmp->next;
4752	}
4753	if (occur != 0)
4754	occur = 1;
4755	} else
4756	occur++;
4757	} else if ((cur->type == XML_TEXT_NODE) \|\|
4758	(cur->type == XML_CDATA_SECTION_NODE)) {
4759	sep = "/";
4760	name = "text()";
4761	next = cur->parent;
4762
4763	/*
4764	* Thumbler index computation
4765	*/
4766	tmp = cur->prev;
4767	while (tmp != NULL) {
4768	if ((tmp->type == XML_TEXT_NODE) \|\|
4769	(tmp->type == XML_CDATA_SECTION_NODE))
4770	occur++;
4771	tmp = tmp->prev;
4772	}
4773	/*
4774	* Evaluate if this is the only text- or CDATA-section-node;
4775	* if yes, then we'll get "text()", otherwise "text()[1]".
4776	*/
4777	if (occur == 0) {
4778	tmp = cur->next;
4779	while (tmp != NULL) {
4780	if ((tmp->type == XML_TEXT_NODE) \|\|
4781	(tmp->type == XML_CDATA_SECTION_NODE))
4782	{
4783	occur = 1;
4784	break;
4785	}
4786	tmp = tmp->next;
4787	}
4788	} else
4789	occur++;
4790	} else if (cur->type == XML_PI_NODE) {
4791	sep = "/";
4792	snprintf(nametemp, sizeof(nametemp) - 1,
4793	"processing-instruction('%s')", (char *)cur->name);
4794	nametemp[sizeof(nametemp) - 1] = 0;
4795	name = nametemp;
4796
4797	next = cur->parent;
4798
4799	/*
4800	* Thumbler index computation
4801	*/
4802	tmp = cur->prev;
4803	while (tmp != NULL) {
4804	if ((tmp->type == XML_PI_NODE) &&
4805	(xmlStrEqual(cur->name, tmp->name)))
4806	occur++;
4807	tmp = tmp->prev;
4808	}
4809	if (occur == 0) {
4810	tmp = cur->next;
4811	while (tmp != NULL && occur == 0) {
4812	if ((tmp->type == XML_PI_NODE) &&
4813	(xmlStrEqual(cur->name, tmp->name)))
4814	occur++;
4815	tmp = tmp->next;
4816	}
4817	if (occur != 0)
4818	occur = 1;
4819	} else
4820	occur++;
4821
4822	} else if (cur->type == XML_ATTRIBUTE_NODE) {
4823	sep = "/@";
4824	name = (const char *) (((xmlAttrPtr) cur)->name);
4825	if (cur->ns) {
4826	if (cur->ns->prefix != NULL)
4827	snprintf(nametemp, sizeof(nametemp) - 1, "%s:%s",
4828	(char )cur->ns->prefix, (char )cur->name);
4829	else
4830	snprintf(nametemp, sizeof(nametemp) - 1, "%s",
4831	(char *)cur->name);
4832	nametemp[sizeof(nametemp) - 1] = 0;
4833	name = nametemp;
4834	}
4835	next = ((xmlAttrPtr) cur)->parent;
4836	} else {
4837	next = cur->parent;
4838	}
4839
4840	/*
4841	* Make sure there is enough room
4842	*/
4843	if (xmlStrlen(buffer) + sizeof(nametemp) + 20 > buf_len) {
4844	buf_len =
4845	2 * buf_len + xmlStrlen(buffer) + sizeof(nametemp) + 20;
4846	temp = (xmlChar *) xmlRealloc(buffer, buf_len);
4847	if (temp == NULL) {
4848	xmlTreeErrMemory("getting node path");
4849	xmlFree(buf);
4850	xmlFree(buffer);
4851	return (NULL);
4852	}
4853	buffer = temp;
4854	temp = (xmlChar *) xmlRealloc(buf, buf_len);
4855	if (temp == NULL) {
4856	xmlTreeErrMemory("getting node path");
4857	xmlFree(buf);
4858	xmlFree(buffer);
4859	return (NULL);
4860	}
4861	buf = temp;
4862	}
4863	if (occur == 0)
4864	snprintf((char *) buf, buf_len, "%s%s%s",
4865	sep, name, (char *) buffer);
4866	else
4867	snprintf((char *) buf, buf_len, "%s%s[%d]%s",
4868	sep, name, occur, (char *) buffer);
4869	snprintf((char ) buffer, buf_len, "%s", (char )buf);
4870	cur = next;
4871	} while (cur != NULL);
4872	xmlFree(buf);
4873	return (buffer);
4874	}
4875	#endif /* LIBXML_TREE_ENABLED */
4876
4877	/**
4878	* xmlDocGetRootElement:
4879	* @doc: the document
4880	*
4881	* Get the root element of the document (doc->children is a list
4882	* containing possibly comments, PIs, etc ...).
4883	*
4884	* Returns the #xmlNodePtr for the root or NULL
4885	*/
4886	xmlNodePtr
4887	xmlDocGetRootElement(const xmlDoc *doc) {
4888	xmlNodePtr ret;
4889
4890	if (doc == NULL) return(NULL);
4891	ret = doc->children;
4892	while (ret != NULL) {
4893	if (ret->type == XML_ELEMENT_NODE)
4894	return(ret);
4895	ret = ret->next;
4896	}
4897	return(ret);
4898	}
4899
4900	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_WRITER_ENABLED)
4901	/**
4902	* xmlDocSetRootElement:
4903	* @doc: the document
4904	* @root: the new document root element, if root is NULL no action is taken,
4905	* to remove a node from a document use xmlUnlinkNode(root) instead.
4906	*
4907	* Set the root element of the document (doc->children is a list
4908	* containing possibly comments, PIs, etc ...).
4909	*
4910	* Returns the old root element if any was found, NULL if root was NULL
4911	*/
4912	xmlNodePtr
4913	xmlDocSetRootElement(xmlDocPtr doc, xmlNodePtr root) {
4914	xmlNodePtr old = NULL;
4915
4916	if (doc == NULL) return(NULL);
4917	if ((root == NULL) \|\| (root->type == XML_NAMESPACE_DECL))
4918	return(NULL);
4919	xmlUnlinkNode(root);
4920	xmlSetTreeDoc(root, doc);
4921	root->parent = (xmlNodePtr) doc;
4922	old = doc->children;
4923	while (old != NULL) {
4924	if (old->type == XML_ELEMENT_NODE)
4925	break;
4926	old = old->next;
4927	}
4928	if (old == NULL) {
4929	if (doc->children == NULL) {
4930	doc->children = root;
4931	doc->last = root;
4932	} else {
4933	xmlAddSibling(doc->children, root);
4934	}
4935	} else {
4936	xmlReplaceNode(old, root);
4937	}
4938	return(old);
4939	}
4940	#endif
4941
4942	#if defined(LIBXML_TREE_ENABLED)
4943	/**
4944	* xmlNodeSetLang:
4945	* @cur: the node being changed
4946	* @lang: the language description
4947	*
4948	* Set the language of a node, i.e. the values of the xml:lang
4949	* attribute.
4950	*/
4951	void
4952	xmlNodeSetLang(xmlNodePtr cur, const xmlChar *lang) {
4953	xmlNsPtr ns;
4954
4955	if (cur == NULL) return;
4956	switch(cur->type) {
4957	case XML_TEXT_NODE:
4958	case XML_CDATA_SECTION_NODE:
4959	case XML_COMMENT_NODE:
4960	case XML_DOCUMENT_NODE:
4961	case XML_DOCUMENT_TYPE_NODE:
4962	case XML_DOCUMENT_FRAG_NODE:
4963	case XML_NOTATION_NODE:
4964	case XML_HTML_DOCUMENT_NODE:
4965	case XML_DTD_NODE:
4966	case XML_ELEMENT_DECL:
4967	case XML_ATTRIBUTE_DECL:
4968	case XML_ENTITY_DECL:
4969	case XML_PI_NODE:
4970	case XML_ENTITY_REF_NODE:
4971	case XML_ENTITY_NODE:
4972	case XML_NAMESPACE_DECL:
4973	#ifdef LIBXML_DOCB_ENABLED
4974	case XML_DOCB_DOCUMENT_NODE:
4975	#endif
4976	case XML_XINCLUDE_START:
4977	case XML_XINCLUDE_END:
4978	return;
4979	case XML_ELEMENT_NODE:
4980	case XML_ATTRIBUTE_NODE:
4981	break;
4982	}
4983	ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
4984	if (ns == NULL)
4985	return;
4986	xmlSetNsProp(cur, ns, BAD_CAST "lang", lang);
4987	}
4988	#endif /* LIBXML_TREE_ENABLED */
4989
4990	/**
4991	* xmlNodeGetLang:
4992	* @cur: the node being checked
4993	*
4994	* Searches the language of a node, i.e. the values of the xml:lang
4995	* attribute or the one carried by the nearest ancestor.
4996	*
4997	* Returns a pointer to the lang value, or NULL if not found
4998	* It's up to the caller to free the memory with xmlFree().
4999	*/
5000	xmlChar *
5001	xmlNodeGetLang(const xmlNode *cur) {
5002	xmlChar *lang;
5003
5004	if ((cur == NULL) \|\| (cur->type == XML_NAMESPACE_DECL))
5005	return(NULL);
5006	while (cur != NULL) {
5007	lang = xmlGetNsProp(cur, BAD_CAST "lang", XML_XML_NAMESPACE);
5008	if (lang != NULL)
5009	return(lang);
5010	cur = cur->parent;
5011	}
5012	return(NULL);
5013	}
5014
5015
5016	#ifdef LIBXML_TREE_ENABLED
5017	/**
5018	* xmlNodeSetSpacePreserve:
5019	* @cur: the node being changed
5020	* @val: the xml:space value ("0": default, 1: "preserve")
5021	*
5022	* Set (or reset) the space preserving behaviour of a node, i.e. the
5023	* value of the xml:space attribute.
5024	*/
5025	void
5026	xmlNodeSetSpacePreserve(xmlNodePtr cur, int val) {
5027	xmlNsPtr ns;
5028
5029	if (cur == NULL) return;
5030	switch(cur->type) {
5031	case XML_TEXT_NODE:
5032	case XML_CDATA_SECTION_NODE:
5033	case XML_COMMENT_NODE:
5034	case XML_DOCUMENT_NODE:
5035	case XML_DOCUMENT_TYPE_NODE:
5036	case XML_DOCUMENT_FRAG_NODE:
5037	case XML_NOTATION_NODE:
5038	case XML_HTML_DOCUMENT_NODE:
5039	case XML_DTD_NODE:
5040	case XML_ELEMENT_DECL:
5041	case XML_ATTRIBUTE_DECL:
5042	case XML_ENTITY_DECL:
5043	case XML_PI_NODE:
5044	case XML_ENTITY_REF_NODE:
5045	case XML_ENTITY_NODE:
5046	case XML_NAMESPACE_DECL:
5047	case XML_XINCLUDE_START:
5048	case XML_XINCLUDE_END:
5049	#ifdef LIBXML_DOCB_ENABLED
5050	case XML_DOCB_DOCUMENT_NODE:
5051	#endif
5052	return;
5053	case XML_ELEMENT_NODE:
5054	case XML_ATTRIBUTE_NODE:
5055	break;
5056	}
5057	ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
5058	if (ns == NULL)
5059	return;
5060	switch (val) {
5061	case 0:
5062	xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "default");
5063	break;
5064	case 1:
5065	xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "preserve");
5066	break;
5067	}
5068	}
5069	#endif /* LIBXML_TREE_ENABLED */
5070
5071	/**
5072	* xmlNodeGetSpacePreserve:
5073	* @cur: the node being checked
5074	*
5075	* Searches the space preserving behaviour of a node, i.e. the values
5076	* of the xml:space attribute or the one carried by the nearest
5077	* ancestor.
5078	*
5079	* Returns -1 if xml:space is not inherited, 0 if "default", 1 if "preserve"
5080	*/
5081	int
5082	xmlNodeGetSpacePreserve(const xmlNode *cur) {
5083	xmlChar *space;
5084
5085	if ((cur == NULL) \|\| (cur->type != XML_ELEMENT_NODE))
5086	return(-1);
5087	while (cur != NULL) {
5088	space = xmlGetNsProp(cur, BAD_CAST "space", XML_XML_NAMESPACE);
5089	if (space != NULL) {
5090	if (xmlStrEqual(space, BAD_CAST "preserve")) {
5091	xmlFree(space);
5092	return(1);
5093	}
5094	if (xmlStrEqual(space, BAD_CAST "default")) {
5095	xmlFree(space);
5096	return(0);
5097	}
5098	xmlFree(space);
5099	}
5100	cur = cur->parent;
5101	}
5102	return(-1);
5103	}
5104
5105	#ifdef LIBXML_TREE_ENABLED
5106	/**
5107	* xmlNodeSetName:
5108	* @cur: the node being changed
5109	* @name: the new tag name
5110	*
5111	* Set (or reset) the name of a node.
5112	*/
5113	void
5114	xmlNodeSetName(xmlNodePtr cur, const xmlChar *name) {
5115	xmlDocPtr doc;
5116	xmlDictPtr dict;
5117	const xmlChar *freeme = NULL;
5118
5119	if (cur == NULL) return;
5120	if (name == NULL) return;
5121	switch(cur->type) {
5122	case XML_TEXT_NODE:
5123	case XML_CDATA_SECTION_NODE:
5124	case XML_COMMENT_NODE:
5125	case XML_DOCUMENT_TYPE_NODE:
5126	case XML_DOCUMENT_FRAG_NODE:
5127	case XML_NOTATION_NODE:
5128	case XML_HTML_DOCUMENT_NODE:
5129	case XML_NAMESPACE_DECL:
5130	case XML_XINCLUDE_START:
5131	case XML_XINCLUDE_END:
5132	#ifdef LIBXML_DOCB_ENABLED
5133	case XML_DOCB_DOCUMENT_NODE:
5134	#endif
5135	return;
5136	case XML_ELEMENT_NODE:
5137	case XML_ATTRIBUTE_NODE:
5138	case XML_PI_NODE:
5139	case XML_ENTITY_REF_NODE:
5140	case XML_ENTITY_NODE:
5141	case XML_DTD_NODE:
5142	case XML_DOCUMENT_NODE:
5143	case XML_ELEMENT_DECL:
5144	case XML_ATTRIBUTE_DECL:
5145	case XML_ENTITY_DECL:
5146	break;
5147	}
5148	doc = cur->doc;
5149	if (doc != NULL)
5150	dict = doc->dict;
5151	else
5152	dict = NULL;
5153	if (dict != NULL) {
5154	if ((cur->name != NULL) && (!xmlDictOwns(dict, cur->name)))
5155	freeme = cur->name;
5156	cur->name = xmlDictLookup(dict, name, -1);
5157	} else {
5158	if (cur->name != NULL)
5159	freeme = cur->name;
5160	cur->name = xmlStrdup(name);
5161	}
5162
5163	if (freeme)
5164	xmlFree((xmlChar *) freeme);
5165	}
5166	#endif
5167
5168	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_XINCLUDE_ENABLED)
5169	/**
5170	* xmlNodeSetBase:
5171	* @cur: the node being changed
5172	* @uri: the new base URI
5173	*
5174	* Set (or reset) the base URI of a node, i.e. the value of the
5175	* xml:base attribute.
5176	*/
5177	void
5178	xmlNodeSetBase(xmlNodePtr cur, const xmlChar* uri) {
5179	xmlNsPtr ns;
5180	xmlChar* fixed;
5181
5182	if (cur == NULL) return;
5183	switch(cur->type) {
5184	case XML_TEXT_NODE:
5185	case XML_CDATA_SECTION_NODE:
5186	case XML_COMMENT_NODE:
5187	case XML_DOCUMENT_TYPE_NODE:
5188	case XML_DOCUMENT_FRAG_NODE:
5189	case XML_NOTATION_NODE:
5190	case XML_DTD_NODE:
5191	case XML_ELEMENT_DECL:
5192	case XML_ATTRIBUTE_DECL:
5193	case XML_ENTITY_DECL:
5194	case XML_PI_NODE:
5195	case XML_ENTITY_REF_NODE:
5196	case XML_ENTITY_NODE:
5197	case XML_NAMESPACE_DECL:
5198	case XML_XINCLUDE_START:
5199	case XML_XINCLUDE_END:
5200	return;
5201	case XML_ELEMENT_NODE:
5202	case XML_ATTRIBUTE_NODE:
5203	break;
5204	case XML_DOCUMENT_NODE:
5205	#ifdef LIBXML_DOCB_ENABLED
5206	case XML_DOCB_DOCUMENT_NODE:
5207	#endif
5208	case XML_HTML_DOCUMENT_NODE: {
5209	xmlDocPtr doc = (xmlDocPtr) cur;
5210
5211	if (doc->URL != NULL)
5212	xmlFree((xmlChar *) doc->URL);
5213	if (uri == NULL)
5214	doc->URL = NULL;
5215	else
5216	doc->URL = xmlPathToURI(uri);
5217	return;
5218	}
5219	}
5220
5221	ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);
5222	if (ns == NULL)
5223	return;
5224	fixed = xmlPathToURI(uri);
5225	if (fixed != NULL) {
5226	xmlSetNsProp(cur, ns, BAD_CAST "base", fixed);
5227	xmlFree(fixed);
5228	} else {
5229	xmlSetNsProp(cur, ns, BAD_CAST "base", uri);
5230	}
5231	}
5232	#endif /* LIBXML_TREE_ENABLED */
5233
5234	/**
5235	* xmlNodeGetBase:
5236	* @doc: the document the node pertains to
5237	* @cur: the node being checked
5238	*
5239	* Searches for the BASE URL. The code should work on both XML
5240	* and HTML document even if base mechanisms are completely different.
5241	* It returns the base as defined in RFC 2396 sections
5242	* 5.1.1. Base URI within Document Content
5243	* and
5244	* 5.1.2. Base URI from the Encapsulating Entity
5245	* However it does not return the document base (5.1.3), use
5246	* doc->URL in this case
5247	*
5248	* Returns a pointer to the base URL, or NULL if not found
5249	* It's up to the caller to free the memory with xmlFree().
5250	*/
5251	xmlChar *
5252	xmlNodeGetBase(const xmlDoc doc, const xmlNode cur) {
5253	xmlChar *oldbase = NULL;
5254	xmlChar base, newbase;
5255
5256	if ((cur == NULL) && (doc == NULL))
5257	return(NULL);
5258	if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
5259	return(NULL);
5260	if (doc == NULL) doc = cur->doc;
5261	if ((doc != NULL) && (doc->type == XML_HTML_DOCUMENT_NODE)) {
5262	cur = doc->children;
5263	while ((cur != NULL) && (cur->name != NULL)) {
5264	if (cur->type != XML_ELEMENT_NODE) {
5265	cur = cur->next;
5266	continue;
5267	}
5268	if (!xmlStrcasecmp(cur->name, BAD_CAST "html")) {
5269	cur = cur->children;
5270	continue;
5271	}
5272	if (!xmlStrcasecmp(cur->name, BAD_CAST "head")) {
5273	cur = cur->children;
5274	continue;
5275	}
5276	if (!xmlStrcasecmp(cur->name, BAD_CAST "base")) {
5277	return(xmlGetProp(cur, BAD_CAST "href"));
5278	}
5279	cur = cur->next;
5280	}
5281	return(NULL);
5282	}
5283	while (cur != NULL) {
5284	if (cur->type == XML_ENTITY_DECL) {
5285	xmlEntityPtr ent = (xmlEntityPtr) cur;
5286	return(xmlStrdup(ent->URI));
5287	}
5288	if (cur->type == XML_ELEMENT_NODE) {
5289	base = xmlGetNsProp(cur, BAD_CAST "base", XML_XML_NAMESPACE);
5290	if (base != NULL) {
5291	if (oldbase != NULL) {
5292	newbase = xmlBuildURI(oldbase, base);
5293	if (newbase != NULL) {
5294	xmlFree(oldbase);
5295	xmlFree(base);
5296	oldbase = newbase;
5297	} else {
5298	xmlFree(oldbase);
5299	xmlFree(base);
5300	return(NULL);
5301	}
5302	} else {
5303	oldbase = base;
5304	}
5305	if ((!xmlStrncmp(oldbase, BAD_CAST "http://", 7)) \|\|
5306	(!xmlStrncmp(oldbase, BAD_CAST "ftp://", 6)) \|\|
5307	(!xmlStrncmp(oldbase, BAD_CAST "urn:", 4)))
5308	return(oldbase);
5309	}
5310	}
5311	cur = cur->parent;
5312	}
5313	if ((doc != NULL) && (doc->URL != NULL)) {
5314	if (oldbase == NULL)
5315	return(xmlStrdup(doc->URL));
5316	newbase = xmlBuildURI(oldbase, doc->URL);
5317	xmlFree(oldbase);
5318	return(newbase);
5319	}
5320	return(oldbase);
5321	}
5322
5323	/**
5324	* xmlNodeBufGetContent:
5325	* @buffer: a buffer
5326	* @cur: the node being read
5327	*
5328	* Read the value of a node @cur, this can be either the text carried
5329	* directly by this node if it's a TEXT node or the aggregate string
5330	* of the values carried by this node child's (TEXT and ENTITY_REF).
5331	* Entity references are substituted.
5332	* Fills up the buffer @buffer with this value
5333	*
5334	* Returns 0 in case of success and -1 in case of error.
5335	*/
5336	int
5337	xmlNodeBufGetContent(xmlBufferPtr buffer, const xmlNode *cur)
5338	{
5339	xmlBufPtr buf;
5340	int ret;
5341
5342	if ((cur == NULL) \|\| (buffer == NULL)) return(-1);
5343	buf = xmlBufFromBuffer(buffer);
5344	ret = xmlBufGetNodeContent(buf, cur);
5345	buffer = xmlBufBackToBuffer(buf);
5346	if ((ret < 0) \|\| (buffer == NULL))
5347	return(-1);
5348	return(0);
5349	}
5350
5351	/**
5352	* xmlBufGetNodeContent:
5353	* @buf: a buffer xmlBufPtr
5354	* @cur: the node being read
5355	*
5356	* Read the value of a node @cur, this can be either the text carried
5357	* directly by this node if it's a TEXT node or the aggregate string
5358	* of the values carried by this node child's (TEXT and ENTITY_REF).
5359	* Entity references are substituted.
5360	* Fills up the buffer @buf with this value
5361	*
5362	* Returns 0 in case of success and -1 in case of error.
5363	*/
5364	int
5365	xmlBufGetNodeContent(xmlBufPtr buf, const xmlNode *cur)
5366	{
5367	if ((cur == NULL) \|\| (buf == NULL)) return(-1);
5368	switch (cur->type) {
5369	case XML_CDATA_SECTION_NODE:
5370	case XML_TEXT_NODE:
5371	xmlBufCat(buf, cur->content);
5372	break;
5373	case XML_DOCUMENT_FRAG_NODE:
5374	case XML_ELEMENT_NODE:{
5375	const xmlNode *tmp = cur;
5376
5377	while (tmp != NULL) {
5378	switch (tmp->type) {
5379	case XML_CDATA_SECTION_NODE:
5380	case XML_TEXT_NODE:
5381	if (tmp->content != NULL)
5382	xmlBufCat(buf, tmp->content);
5383	break;
5384	case XML_ENTITY_REF_NODE:
5385	xmlBufGetNodeContent(buf, tmp);
5386	break;
5387	default:
5388	break;
5389	}
5390	/*
5391	* Skip to next node
5392	*/
5393	if (tmp->children != NULL) {
5394	if (tmp->children->type != XML_ENTITY_DECL) {
5395	tmp = tmp->children;
5396	continue;
5397	}
5398	}
5399	if (tmp == cur)
5400	break;
5401
5402	if (tmp->next != NULL) {
5403	tmp = tmp->next;
5404	continue;
5405	}
5406
5407	do {
5408	tmp = tmp->parent;
5409	if (tmp == NULL)
5410	break;
5411	if (tmp == cur) {
5412	tmp = NULL;
5413	break;
5414	}
5415	if (tmp->next != NULL) {
5416	tmp = tmp->next;
5417	break;
5418	}
5419	} while (tmp != NULL);
5420	}
5421	break;
5422	}
5423	case XML_ATTRIBUTE_NODE:{
5424	xmlAttrPtr attr = (xmlAttrPtr) cur;
5425	xmlNodePtr tmp = attr->children;
5426
5427	while (tmp != NULL) {
5428	if (tmp->type == XML_TEXT_NODE)
5429	xmlBufCat(buf, tmp->content);
5430	else
5431	xmlBufGetNodeContent(buf, tmp);
5432	tmp = tmp->next;
5433	}
5434	break;
5435	}
5436	case XML_COMMENT_NODE:
5437	case XML_PI_NODE:
5438	xmlBufCat(buf, cur->content);
5439	break;
5440	case XML_ENTITY_REF_NODE:{
5441	xmlEntityPtr ent;
5442	xmlNodePtr tmp;
5443
5444	/* lookup entity declaration */
5445	ent = xmlGetDocEntity(cur->doc, cur->name);
5446	if (ent == NULL)
5447	return(-1);
5448
5449	/* an entity content can be any "well balanced chunk",
5450	* i.e. the result of the content [43] production:
5451	* http://www.w3.org/TR/REC-xml#NT-content
5452	* -> we iterate through child nodes and recursive call
5453	* xmlNodeGetContent() which handles all possible node types */
5454	tmp = ent->children;
5455	while (tmp) {
5456	xmlBufGetNodeContent(buf, tmp);
5457	tmp = tmp->next;
5458	}
5459	break;
5460	}
5461	case XML_ENTITY_NODE:
5462	case XML_DOCUMENT_TYPE_NODE:
5463	case XML_NOTATION_NODE:
5464	case XML_DTD_NODE:
5465	case XML_XINCLUDE_START:
5466	case XML_XINCLUDE_END:
5467	break;
5468	case XML_DOCUMENT_NODE:
5469	#ifdef LIBXML_DOCB_ENABLED
5470	case XML_DOCB_DOCUMENT_NODE:
5471	#endif
5472	case XML_HTML_DOCUMENT_NODE:
5473	cur = cur->children;
5474	while (cur!= NULL) {
5475	if ((cur->type == XML_ELEMENT_NODE) \|\|
5476	(cur->type == XML_TEXT_NODE) \|\|
5477	(cur->type == XML_CDATA_SECTION_NODE)) {
5478	xmlBufGetNodeContent(buf, cur);
5479	}
5480	cur = cur->next;
5481	}
5482	break;
5483	case XML_NAMESPACE_DECL:
5484	xmlBufCat(buf, ((xmlNsPtr) cur)->href);
5485	break;
5486	case XML_ELEMENT_DECL:
5487	case XML_ATTRIBUTE_DECL:
5488	case XML_ENTITY_DECL:
5489	break;
5490	}
5491	return(0);
5492	}
5493
5494	/**
5495	* xmlNodeGetContent:
5496	* @cur: the node being read
5497	*
5498	* Read the value of a node, this can be either the text carried
5499	* directly by this node if it's a TEXT node or the aggregate string
5500	* of the values carried by this node child's (TEXT and ENTITY_REF).
5501	* Entity references are substituted.
5502	* Returns a new #xmlChar * or NULL if no content is available.
5503	* It's up to the caller to free the memory with xmlFree().
5504	*/
5505	xmlChar *
5506	xmlNodeGetContent(const xmlNode *cur)
5507	{
5508	if (cur == NULL)
5509	return (NULL);
5510	switch (cur->type) {
5511	case XML_DOCUMENT_FRAG_NODE:
5512	case XML_ELEMENT_NODE:{
5513	xmlBufPtr buf;
5514	xmlChar *ret;
5515
5516	buf = xmlBufCreateSize(64);
5517	if (buf == NULL)
5518	return (NULL);
5519	xmlBufGetNodeContent(buf, cur);
5520	ret = xmlBufDetach(buf);
5521	xmlBufFree(buf);
5522	return (ret);
5523	}
5524	case XML_ATTRIBUTE_NODE:
5525	return(xmlGetPropNodeValueInternal((xmlAttrPtr) cur));
5526	case XML_COMMENT_NODE:
5527	case XML_PI_NODE:
5528	if (cur->content != NULL)
5529	return (xmlStrdup(cur->content));
5530	return (NULL);
5531	case XML_ENTITY_REF_NODE:{
5532	xmlEntityPtr ent;
5533	xmlBufPtr buf;
5534	xmlChar *ret;
5535
5536	/* lookup entity declaration */
5537	ent = xmlGetDocEntity(cur->doc, cur->name);
5538	if (ent == NULL)
5539	return (NULL);
5540
5541	buf = xmlBufCreate();
5542	if (buf == NULL)
5543	return (NULL);
5544
5545	xmlBufGetNodeContent(buf, cur);
5546
5547	ret = xmlBufDetach(buf);
5548	xmlBufFree(buf);
5549	return (ret);
5550	}
5551	case XML_ENTITY_NODE:
5552	case XML_DOCUMENT_TYPE_NODE:
5553	case XML_NOTATION_NODE:
5554	case XML_DTD_NODE:
5555	case XML_XINCLUDE_START:
5556	case XML_XINCLUDE_END:
5557	return (NULL);
5558	case XML_DOCUMENT_NODE:
5559	#ifdef LIBXML_DOCB_ENABLED
5560	case XML_DOCB_DOCUMENT_NODE:
5561	#endif
5562	case XML_HTML_DOCUMENT_NODE: {
5563	xmlBufPtr buf;
5564	xmlChar *ret;
5565
5566	buf = xmlBufCreate();
5567	if (buf == NULL)
5568	return (NULL);
5569
5570	xmlBufGetNodeContent(buf, (xmlNodePtr) cur);
5571
5572	ret = xmlBufDetach(buf);
5573	xmlBufFree(buf);
5574	return (ret);
5575	}
5576	case XML_NAMESPACE_DECL: {
5577	xmlChar *tmp;
5578
5579	tmp = xmlStrdup(((xmlNsPtr) cur)->href);
5580	return (tmp);
5581	}
5582	case XML_ELEMENT_DECL:
5583	/* TODO !!! */
5584	return (NULL);
5585	case XML_ATTRIBUTE_DECL:
5586	/* TODO !!! */
5587	return (NULL);
5588	case XML_ENTITY_DECL:
5589	/* TODO !!! */
5590	return (NULL);
5591	case XML_CDATA_SECTION_NODE:
5592	case XML_TEXT_NODE:
5593	if (cur->content != NULL)
5594	return (xmlStrdup(cur->content));
5595	return (NULL);
5596	}
5597	return (NULL);
5598	}
5599
5600	/**
5601	* xmlNodeSetContent:
5602	* @cur: the node being modified
5603	* @content: the new value of the content
5604	*
5605	* Replace the content of a node.
5606	* NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity
5607	* references, but XML special chars need to be escaped first by using
5608	* xmlEncodeEntitiesReentrant() resp. xmlEncodeSpecialChars().
5609	*/
5610	void
5611	xmlNodeSetContent(xmlNodePtr cur, const xmlChar *content) {
5612	if (cur == NULL) {
5613	#ifdef DEBUG_TREE
5614	xmlGenericError(xmlGenericErrorContext,
5615	"xmlNodeSetContent : node == NULL\n");
5616	#endif
5617	return;
5618	}
5619	switch (cur->type) {
5620	case XML_DOCUMENT_FRAG_NODE:
5621	case XML_ELEMENT_NODE:
5622	case XML_ATTRIBUTE_NODE:
5623	if (cur->children != NULL) xmlFreeNodeList(cur->children);
5624	cur->children = xmlStringGetNodeList(cur->doc, content);
5625	UPDATE_LAST_CHILD_AND_PARENT(cur)
5626	break;
5627	case XML_TEXT_NODE:
5628	case XML_CDATA_SECTION_NODE:
5629	case XML_ENTITY_REF_NODE:
5630	case XML_ENTITY_NODE:
5631	case XML_PI_NODE:
5632	case XML_COMMENT_NODE:
5633	if ((cur->content != NULL) &&
5634	(cur->content != (xmlChar *) &(cur->properties))) {
5635	if (!((cur->doc != NULL) && (cur->doc->dict != NULL) &&
5636	(xmlDictOwns(cur->doc->dict, cur->content))))
5637	xmlFree(cur->content);
5638	}
5639	if (cur->children != NULL) xmlFreeNodeList(cur->children);
5640	cur->last = cur->children = NULL;
5641	if (content != NULL) {
5642	cur->content = xmlStrdup(content);
5643	} else
5644	cur->content = NULL;
5645	cur->properties = NULL;
5646	cur->nsDef = NULL;
5647	break;
5648	case XML_DOCUMENT_NODE:
5649	case XML_HTML_DOCUMENT_NODE:
5650	case XML_DOCUMENT_TYPE_NODE:
5651	case XML_XINCLUDE_START:
5652	case XML_XINCLUDE_END:
5653	#ifdef LIBXML_DOCB_ENABLED
5654	case XML_DOCB_DOCUMENT_NODE:
5655	#endif
5656	break;
5657	case XML_NOTATION_NODE:
5658	break;
5659	case XML_DTD_NODE:
5660	break;
5661	case XML_NAMESPACE_DECL:
5662	break;
5663	case XML_ELEMENT_DECL:
5664	/* TODO !!! */
5665	break;
5666	case XML_ATTRIBUTE_DECL:
5667	/* TODO !!! */
5668	break;
5669	case XML_ENTITY_DECL:
5670	/* TODO !!! */
5671	break;
5672	}
5673	}
5674
5675	#ifdef LIBXML_TREE_ENABLED
5676	/**
5677	* xmlNodeSetContentLen:
5678	* @cur: the node being modified
5679	* @content: the new value of the content
5680	* @len: the size of @content
5681	*
5682	* Replace the content of a node.
5683	* NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity
5684	* references, but XML special chars need to be escaped first by using
5685	* xmlEncodeEntitiesReentrant() resp. xmlEncodeSpecialChars().
5686	*/
5687	void
5688	xmlNodeSetContentLen(xmlNodePtr cur, const xmlChar *content, int len) {
5689	if (cur == NULL) {
5690	#ifdef DEBUG_TREE
5691	xmlGenericError(xmlGenericErrorContext,
5692	"xmlNodeSetContentLen : node == NULL\n");
5693	#endif
5694	return;
5695	}
5696	switch (cur->type) {
5697	case XML_DOCUMENT_FRAG_NODE:
5698	case XML_ELEMENT_NODE:
5699	case XML_ATTRIBUTE_NODE:
5700	if (cur->children != NULL) xmlFreeNodeList(cur->children);
5701	cur->children = xmlStringLenGetNodeList(cur->doc, content, len);
5702	UPDATE_LAST_CHILD_AND_PARENT(cur)
5703	break;
5704	case XML_TEXT_NODE:
5705	case XML_CDATA_SECTION_NODE:
5706	case XML_ENTITY_REF_NODE:
5707	case XML_ENTITY_NODE:
5708	case XML_PI_NODE:
5709	case XML_COMMENT_NODE:
5710	case XML_NOTATION_NODE:
5711	if ((cur->content != NULL) &&
5712	(cur->content != (xmlChar *) &(cur->properties))) {
5713	if (!((cur->doc != NULL) && (cur->doc->dict != NULL) &&
5714	(xmlDictOwns(cur->doc->dict, cur->content))))
5715	xmlFree(cur->content);
5716	}
5717	if (cur->children != NULL) xmlFreeNodeList(cur->children);
5718	cur->children = cur->last = NULL;
5719	if (content != NULL) {
5720	cur->content = xmlStrndup(content, len);
5721	} else
5722	cur->content = NULL;
5723	cur->properties = NULL;
5724	cur->nsDef = NULL;
5725	break;
5726	case XML_DOCUMENT_NODE:
5727	case XML_DTD_NODE:
5728	case XML_HTML_DOCUMENT_NODE:
5729	case XML_DOCUMENT_TYPE_NODE:
5730	case XML_NAMESPACE_DECL:
5731	case XML_XINCLUDE_START:
5732	case XML_XINCLUDE_END:
5733	#ifdef LIBXML_DOCB_ENABLED
5734	case XML_DOCB_DOCUMENT_NODE:
5735	#endif
5736	break;
5737	case XML_ELEMENT_DECL:
5738	/* TODO !!! */
5739	break;
5740	case XML_ATTRIBUTE_DECL:
5741	/* TODO !!! */
5742	break;
5743	case XML_ENTITY_DECL:
5744	/* TODO !!! */
5745	break;
5746	}
5747	}
5748	#endif /* LIBXML_TREE_ENABLED */
5749
5750	/**
5751	* xmlNodeAddContentLen:
5752	* @cur: the node being modified
5753	* @content: extra content
5754	* @len: the size of @content
5755	*
5756	* Append the extra substring to the node content.
5757	* NOTE: In contrast to xmlNodeSetContentLen(), @content is supposed to be
5758	* raw text, so unescaped XML special chars are allowed, entity
5759	* references are not supported.
5760	*/
5761	void
5762	xmlNodeAddContentLen(xmlNodePtr cur, const xmlChar *content, int len) {
5763	if (cur == NULL) {
5764	#ifdef DEBUG_TREE
5765	xmlGenericError(xmlGenericErrorContext,
5766	"xmlNodeAddContentLen : node == NULL\n");
5767	#endif
5768	return;
5769	}
5770	if (len <= 0) return;
5771	switch (cur->type) {
5772	case XML_DOCUMENT_FRAG_NODE:
5773	case XML_ELEMENT_NODE: {
5774	xmlNodePtr last, newNode, tmp;
5775
5776	last = cur->last;
5777	newNode = xmlNewTextLen(content, len);
5778	if (newNode != NULL) {
5779	tmp = xmlAddChild(cur, newNode);
5780	if (tmp != newNode)
5781	return;
5782	if ((last != NULL) && (last->next == newNode)) {
5783	xmlTextMerge(last, newNode);
5784	}
5785	}
5786	break;
5787	}
5788	case XML_ATTRIBUTE_NODE:
5789	break;
5790	case XML_TEXT_NODE:
5791	case XML_CDATA_SECTION_NODE:
5792	case XML_ENTITY_REF_NODE:
5793	case XML_ENTITY_NODE:
5794	case XML_PI_NODE:
5795	case XML_COMMENT_NODE:
5796	case XML_NOTATION_NODE:
5797	if (content != NULL) {
5798	if ((cur->content == (xmlChar *) &(cur->properties)) \|\|
5799	((cur->doc != NULL) && (cur->doc->dict != NULL) &&
5800	xmlDictOwns(cur->doc->dict, cur->content))) {
5801	cur->content = xmlStrncatNew(cur->content, content, len);
5802	cur->properties = NULL;
5803	cur->nsDef = NULL;
5804	break;
5805	}
5806	cur->content = xmlStrncat(cur->content, content, len);
5807	}
5808	case XML_DOCUMENT_NODE:
5809	case XML_DTD_NODE:
5810	case XML_HTML_DOCUMENT_NODE:
5811	case XML_DOCUMENT_TYPE_NODE:
5812	case XML_NAMESPACE_DECL:
5813	case XML_XINCLUDE_START:
5814	case XML_XINCLUDE_END:
5815	#ifdef LIBXML_DOCB_ENABLED
5816	case XML_DOCB_DOCUMENT_NODE:
5817	#endif
5818	break;
5819	case XML_ELEMENT_DECL:
5820	case XML_ATTRIBUTE_DECL:
5821	case XML_ENTITY_DECL:
5822	break;
5823	}
5824	}
5825
5826	/**
5827	* xmlNodeAddContent:
5828	* @cur: the node being modified
5829	* @content: extra content
5830	*
5831	* Append the extra substring to the node content.
5832	* NOTE: In contrast to xmlNodeSetContent(), @content is supposed to be
5833	* raw text, so unescaped XML special chars are allowed, entity
5834	* references are not supported.
5835	*/
5836	void
5837	xmlNodeAddContent(xmlNodePtr cur, const xmlChar *content) {
5838	int len;
5839
5840	if (cur == NULL) {
5841	#ifdef DEBUG_TREE
5842	xmlGenericError(xmlGenericErrorContext,
5843	"xmlNodeAddContent : node == NULL\n");
5844	#endif
5845	return;
5846	}
5847	if (content == NULL) return;
5848	len = xmlStrlen(content);
5849	xmlNodeAddContentLen(cur, content, len);
5850	}
5851
5852	/**
5853	* xmlTextMerge:
5854	* @first: the first text node
5855	* @second: the second text node being merged
5856	*
5857	* Merge two text nodes into one
5858	* Returns the first text node augmented
5859	*/
5860	xmlNodePtr
5861	xmlTextMerge(xmlNodePtr first, xmlNodePtr second) {
5862	if (first == NULL) return(second);
5863	if (second == NULL) return(first);
5864	if (first->type != XML_TEXT_NODE) return(first);
5865	if (second->type != XML_TEXT_NODE) return(first);
5866	if (second->name != first->name)
5867	return(first);
5868	xmlNodeAddContent(first, second->content);
5869	xmlUnlinkNode(second);
5870	xmlFreeNode(second);
5871	return(first);
5872	}
5873
5874	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_XPATH_ENABLED) \|\| defined(LIBXML_SCHEMAS_ENABLED)
5875	/**
5876	* xmlGetNsList:
5877	* @doc: the document
5878	* @node: the current node
5879	*
5880	* Search all the namespace applying to a given element.
5881	* Returns an NULL terminated array of all the #xmlNsPtr found
5882	* that need to be freed by the caller or NULL if no
5883	* namespace if defined
5884	*/
5885	xmlNsPtr *
5886	xmlGetNsList(const xmlDoc doc ATTRIBUTE_UNUSED, const xmlNode node)
5887	{
5888	xmlNsPtr cur;
5889	xmlNsPtr *ret = NULL;
5890	int nbns = 0;
5891	int maxns = 10;
5892	int i;
5893
5894	if ((node == NULL) \|\| (node->type == XML_NAMESPACE_DECL))
5895	return(NULL);
5896
5897	while (node != NULL) {
5898	if (node->type == XML_ELEMENT_NODE) {
5899	cur = node->nsDef;
5900	while (cur != NULL) {
5901	if (ret == NULL) {
5902	ret =
5903	(xmlNsPtr ) xmlMalloc((maxns + 1)
5904	sizeof(xmlNsPtr));
5905	if (ret == NULL) {
5906	xmlTreeErrMemory("getting namespace list");
5907	return (NULL);
5908	}
5909	ret[nbns] = NULL;
5910	}
5911	for (i = 0; i < nbns; i++) {
5912	if ((cur->prefix == ret[i]->prefix) \|\|
5913	(xmlStrEqual(cur->prefix, ret[i]->prefix)))
5914	break;
5915	}
5916	if (i >= nbns) {
5917	if (nbns >= maxns) {
5918	maxns *= 2;
5919	ret = (xmlNsPtr *) xmlRealloc(ret,
5920	(maxns +
5921	1) *
5922	sizeof(xmlNsPtr));
5923	if (ret == NULL) {
5924	xmlTreeErrMemory("getting namespace list");
5925	return (NULL);
5926	}
5927	}
5928	ret[nbns++] = cur;
5929	ret[nbns] = NULL;
5930	}
5931
5932	cur = cur->next;
5933	}
5934	}
5935	node = node->parent;
5936	}
5937	return (ret);
5938	}
5939	#endif /* LIBXML_TREE_ENABLED */
5940
5941	/*
5942	* xmlTreeEnsureXMLDecl:
5943	* @doc: the doc
5944	*
5945	* Ensures that there is an XML namespace declaration on the doc.
5946	*
5947	* Returns the XML ns-struct or NULL on API and internal errors.
5948	*/
5949	static xmlNsPtr
5950	xmlTreeEnsureXMLDecl(xmlDocPtr doc)
5951	{
5952	if (doc == NULL)
5953	return (NULL);
5954	if (doc->oldNs != NULL)
5955	return (doc->oldNs);
5956	{
5957	xmlNsPtr ns;
5958	ns = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
5959	if (ns == NULL) {
5960	xmlTreeErrMemory(
5961	"allocating the XML namespace");
5962	return (NULL);
5963	}
5964	memset(ns, 0, sizeof(xmlNs));
5965	ns->type = XML_LOCAL_NAMESPACE;
5966	ns->href = xmlStrdup(XML_XML_NAMESPACE);
5967	ns->prefix = xmlStrdup((const xmlChar *)"xml");
5968	doc->oldNs = ns;
5969	return (ns);
5970	}
5971	}
5972
5973	/**
5974	* xmlSearchNs:
5975	* @doc: the document
5976	* @node: the current node
5977	* @nameSpace: the namespace prefix
5978	*
5979	* Search a Ns registered under a given name space for a document.
5980	* recurse on the parents until it finds the defined namespace
5981	* or return NULL otherwise.
5982	* @nameSpace can be NULL, this is a search for the default namespace.
5983	* We don't allow to cross entities boundaries. If you don't declare
5984	* the namespace within those you will be in troubles !!! A warning
5985	* is generated to cover this case.
5986	*
5987	* Returns the namespace pointer or NULL.
5988	*/
5989	xmlNsPtr
5990	xmlSearchNs(xmlDocPtr doc, xmlNodePtr node, const xmlChar *nameSpace) {
5991
5992	xmlNsPtr cur;
5993	const xmlNode *orig = node;
5994
5995	if ((node == NULL) \|\| (node->type == XML_NAMESPACE_DECL)) return(NULL);
5996	if ((nameSpace != NULL) &&
5997	(xmlStrEqual(nameSpace, (const xmlChar *)"xml"))) {
5998	if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {
5999	/*
6000	* The XML-1.0 namespace is normally held on the root
6001	* element. In this case exceptionally create it on the
6002	* node element.
6003	*/
6004	cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
6005	if (cur == NULL) {
6006	xmlTreeErrMemory("searching namespace");
6007	return(NULL);
6008	}
6009	memset(cur, 0, sizeof(xmlNs));
6010	cur->type = XML_LOCAL_NAMESPACE;
6011	cur->href = xmlStrdup(XML_XML_NAMESPACE);
6012	cur->prefix = xmlStrdup((const xmlChar *)"xml");
6013	cur->next = node->nsDef;
6014	node->nsDef = cur;
6015	return(cur);
6016	}
6017	if (doc == NULL) {
6018	doc = node->doc;
6019	if (doc == NULL)
6020	return(NULL);
6021	}
6022	/*
6023	* Return the XML namespace declaration held by the doc.
6024	*/
6025	if (doc->oldNs == NULL)
6026	return(xmlTreeEnsureXMLDecl(doc));
6027	else
6028	return(doc->oldNs);
6029	}
6030	while (node != NULL) {
6031	if ((node->type == XML_ENTITY_REF_NODE) \|\|
6032	(node->type == XML_ENTITY_NODE) \|\|
6033	(node->type == XML_ENTITY_DECL))
6034	return(NULL);
6035	if (node->type == XML_ELEMENT_NODE) {
6036	cur = node->nsDef;
6037	while (cur != NULL) {
6038	if ((cur->prefix == NULL) && (nameSpace == NULL) &&
6039	(cur->href != NULL))
6040	return(cur);
6041	if ((cur->prefix != NULL) && (nameSpace != NULL) &&
6042	(cur->href != NULL) &&
6043	(xmlStrEqual(cur->prefix, nameSpace)))
6044	return(cur);
6045	cur = cur->next;
6046	}
6047	if (orig != node) {
6048	cur = node->ns;
6049	if (cur != NULL) {
6050	if ((cur->prefix == NULL) && (nameSpace == NULL) &&
6051	(cur->href != NULL))
6052	return(cur);
6053	if ((cur->prefix != NULL) && (nameSpace != NULL) &&
6054	(cur->href != NULL) &&
6055	(xmlStrEqual(cur->prefix, nameSpace)))
6056	return(cur);
6057	}
6058	}
6059	}
6060	node = node->parent;
6061	}
6062	return(NULL);
6063	}
6064
6065	/**
6066	* xmlNsInScope:
6067	* @doc: the document
6068	* @node: the current node
6069	* @ancestor: the ancestor carrying the namespace
6070	* @prefix: the namespace prefix
6071	*
6072	* Verify that the given namespace held on @ancestor is still in scope
6073	* on node.
6074	*
6075	* Returns 1 if true, 0 if false and -1 in case of error.
6076	*/
6077	static int
6078	xmlNsInScope(xmlDocPtr doc ATTRIBUTE_UNUSED, xmlNodePtr node,
6079	xmlNodePtr ancestor, const xmlChar * prefix)
6080	{
6081	xmlNsPtr tst;
6082
6083	while ((node != NULL) && (node != ancestor)) {
6084	if ((node->type == XML_ENTITY_REF_NODE) \|\|
6085	(node->type == XML_ENTITY_NODE) \|\|
6086	(node->type == XML_ENTITY_DECL))
6087	return (-1);
6088	if (node->type == XML_ELEMENT_NODE) {
6089	tst = node->nsDef;
6090	while (tst != NULL) {
6091	if ((tst->prefix == NULL)
6092	&& (prefix == NULL))
6093	return (0);
6094	if ((tst->prefix != NULL)
6095	&& (prefix != NULL)
6096	&& (xmlStrEqual(tst->prefix, prefix)))
6097	return (0);
6098	tst = tst->next;
6099	}
6100	}
6101	node = node->parent;
6102	}
6103	if (node != ancestor)
6104	return (-1);
6105	return (1);
6106	}
6107
6108	/**
6109	* xmlSearchNsByHref:
6110	* @doc: the document
6111	* @node: the current node
6112	* @href: the namespace value
6113	*
6114	* Search a Ns aliasing a given URI. Recurse on the parents until it finds
6115	* the defined namespace or return NULL otherwise.
6116	* Returns the namespace pointer or NULL.
6117	*/
6118	xmlNsPtr
6119	xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)
6120	{
6121	xmlNsPtr cur;
6122	xmlNodePtr orig = node;
6123	int is_attr;
6124
6125	if ((node == NULL) \|\| (node->type == XML_NAMESPACE_DECL) \|\| (href == NULL))
6126	return (NULL);
6127	if (xmlStrEqual(href, XML_XML_NAMESPACE)) {
6128	/*
6129	* Only the document can hold the XML spec namespace.
6130	*/
6131	if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {
6132	/*
6133	* The XML-1.0 namespace is normally held on the root
6134	* element. In this case exceptionally create it on the
6135	* node element.
6136	*/
6137	cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
6138	if (cur == NULL) {
6139	xmlTreeErrMemory("searching namespace");
6140	return (NULL);
6141	}
6142	memset(cur, 0, sizeof(xmlNs));
6143	cur->type = XML_LOCAL_NAMESPACE;
6144	cur->href = xmlStrdup(XML_XML_NAMESPACE);
6145	cur->prefix = xmlStrdup((const xmlChar *) "xml");
6146	cur->next = node->nsDef;
6147	node->nsDef = cur;
6148	return (cur);
6149	}
6150	if (doc == NULL) {
6151	doc = node->doc;
6152	if (doc == NULL)
6153	return(NULL);
6154	}
6155	/*
6156	* Return the XML namespace declaration held by the doc.
6157	*/
6158	if (doc->oldNs == NULL)
6159	return(xmlTreeEnsureXMLDecl(doc));
6160	else
6161	return(doc->oldNs);
6162	}
6163	is_attr = (node->type == XML_ATTRIBUTE_NODE);
6164	while (node != NULL) {
6165	if ((node->type == XML_ENTITY_REF_NODE) \|\|
6166	(node->type == XML_ENTITY_NODE) \|\|
6167	(node->type == XML_ENTITY_DECL))
6168	return (NULL);
6169	if (node->type == XML_ELEMENT_NODE) {
6170	cur = node->nsDef;
6171	while (cur != NULL) {
6172	if ((cur->href != NULL) && (href != NULL) &&
6173	(xmlStrEqual(cur->href, href))) {
6174	if (((!is_attr) \|\| (cur->prefix != NULL)) &&
6175	(xmlNsInScope(doc, orig, node, cur->prefix) == 1))
6176	return (cur);
6177	}
6178	cur = cur->next;
6179	}
6180	if (orig != node) {
6181	cur = node->ns;
6182	if (cur != NULL) {
6183	if ((cur->href != NULL) && (href != NULL) &&
6184	(xmlStrEqual(cur->href, href))) {
6185	if (((!is_attr) \|\| (cur->prefix != NULL)) &&
6186	(xmlNsInScope(doc, orig, node, cur->prefix) == 1))
6187	return (cur);
6188	}
6189	}
6190	}
6191	}
6192	node = node->parent;
6193	}
6194	return (NULL);
6195	}
6196
6197	/**
6198	* xmlNewReconciliedNs:
6199	* @doc: the document
6200	* @tree: a node expected to hold the new namespace
6201	* @ns: the original namespace
6202	*
6203	* This function tries to locate a namespace definition in a tree
6204	* ancestors, or create a new namespace definition node similar to
6205	* @ns trying to reuse the same prefix. However if the given prefix is
6206	* null (default namespace) or reused within the subtree defined by
6207	* @tree or on one of its ancestors then a new prefix is generated.
6208	* Returns the (new) namespace definition or NULL in case of error
6209	*/
6210	static xmlNsPtr
6211	xmlNewReconciliedNs(xmlDocPtr doc, xmlNodePtr tree, xmlNsPtr ns) {
6212	xmlNsPtr def;
6213	xmlChar prefix[50];
6214	int counter = 1;
6215
6216	if ((tree == NULL) \|\| (tree->type != XML_ELEMENT_NODE)) {
6217	#ifdef DEBUG_TREE
6218	xmlGenericError(xmlGenericErrorContext,
6219	"xmlNewReconciliedNs : tree == NULL\n");
6220	#endif
6221	return(NULL);
6222	}
6223	if ((ns == NULL) \|\| (ns->type != XML_NAMESPACE_DECL)) {
6224	#ifdef DEBUG_TREE
6225	xmlGenericError(xmlGenericErrorContext,
6226	"xmlNewReconciliedNs : ns == NULL\n");
6227	#endif
6228	return(NULL);
6229	}
6230	/*
6231	* Search an existing namespace definition inherited.
6232	*/
6233	def = xmlSearchNsByHref(doc, tree, ns->href);
6234	if (def != NULL)
6235	return(def);
6236
6237	/*
6238	* Find a close prefix which is not already in use.
6239	* Let's strip namespace prefixes longer than 20 chars !
6240	*/
6241	if (ns->prefix == NULL)
6242	snprintf((char *) prefix, sizeof(prefix), "default");
6243	else
6244	snprintf((char ) prefix, sizeof(prefix), "%.20s", (char )ns->prefix);
6245
6246	def = xmlSearchNs(doc, tree, prefix);
6247	while (def != NULL) {
6248	if (counter > 1000) return(NULL);
6249	if (ns->prefix == NULL)
6250	snprintf((char *) prefix, sizeof(prefix), "default%d", counter++);
6251	else
6252	snprintf((char *) prefix, sizeof(prefix), "%.20s%d",
6253	(char *)ns->prefix, counter++);
6254	def = xmlSearchNs(doc, tree, prefix);
6255	}
6256
6257	/*
6258	* OK, now we are ready to create a new one.
6259	*/
6260	def = xmlNewNs(tree, ns->href, prefix);
6261	return(def);
6262	}
6263
6264	#ifdef LIBXML_TREE_ENABLED
6265	/**
6266	* xmlReconciliateNs:
6267	* @doc: the document
6268	* @tree: a node defining the subtree to reconciliate
6269	*
6270	* This function checks that all the namespaces declared within the given
6271	* tree are properly declared. This is needed for example after Copy or Cut
6272	* and then paste operations. The subtree may still hold pointers to
6273	* namespace declarations outside the subtree or invalid/masked. As much
6274	* as possible the function try to reuse the existing namespaces found in
6275	* the new environment. If not possible the new namespaces are redeclared
6276	* on @tree at the top of the given subtree.
6277	* Returns the number of namespace declarations created or -1 in case of error.
6278	*/
6279	int
6280	xmlReconciliateNs(xmlDocPtr doc, xmlNodePtr tree) {
6281	xmlNsPtr *oldNs = NULL;
6282	xmlNsPtr *newNs = NULL;
6283	int sizeCache = 0;
6284	int nbCache = 0;
6285
6286	xmlNsPtr n;
6287	xmlNodePtr node = tree;
6288	xmlAttrPtr attr;
6289	int ret = 0, i;
6290
6291	if ((node == NULL) \|\| (node->type != XML_ELEMENT_NODE)) return(-1);
6292	if ((doc == NULL) \|\| (doc->type != XML_DOCUMENT_NODE)) return(-1);
6293	if (node->doc != doc) return(-1);
6294	while (node != NULL) {
6295	/*
6296	* Reconciliate the node namespace
6297	*/
6298	if (node->ns != NULL) {
6299	/*
6300	* initialize the cache if needed
6301	*/
6302	if (sizeCache == 0) {
6303	sizeCache = 10;
6304	oldNs = (xmlNsPtr ) xmlMalloc(sizeCache
6305	sizeof(xmlNsPtr));
6306	if (oldNs == NULL) {
6307	xmlTreeErrMemory("fixing namespaces");
6308	return(-1);
6309	}
6310	newNs = (xmlNsPtr ) xmlMalloc(sizeCache
6311	sizeof(xmlNsPtr));
6312	if (newNs == NULL) {
6313	xmlTreeErrMemory("fixing namespaces");
6314	xmlFree(oldNs);
6315	return(-1);
6316	}
6317	}
6318	for (i = 0;i < nbCache;i++) {
6319	if (oldNs[i] == node->ns) {
6320	node->ns = newNs[i];
6321	break;
6322	}
6323	}
6324	if (i == nbCache) {
6325	/*
6326	* OK we need to recreate a new namespace definition
6327	*/
6328	n = xmlNewReconciliedNs(doc, tree, node->ns);
6329	if (n != NULL) { /* :-( what if else ??? */
6330	/*
6331	* check if we need to grow the cache buffers.
6332	*/
6333	if (sizeCache <= nbCache) {
6334	sizeCache *= 2;
6335	oldNs = (xmlNsPtr ) xmlRealloc(oldNs, sizeCache
6336	sizeof(xmlNsPtr));
6337	if (oldNs == NULL) {
6338	xmlTreeErrMemory("fixing namespaces");
6339	xmlFree(newNs);
6340	return(-1);
6341	}
6342	newNs = (xmlNsPtr ) xmlRealloc(newNs, sizeCache
6343	sizeof(xmlNsPtr));
6344	if (newNs == NULL) {
6345	xmlTreeErrMemory("fixing namespaces");
6346	xmlFree(oldNs);
6347	return(-1);
6348	}
6349	}
6350	newNs[nbCache] = n;
6351	oldNs[nbCache++] = node->ns;
6352	node->ns = n;
6353	}
6354	}
6355	}
6356	/*
6357	* now check for namespace hold by attributes on the node.
6358	*/
6359	if (node->type == XML_ELEMENT_NODE) {
6360	attr = node->properties;
6361	while (attr != NULL) {
6362	if (attr->ns != NULL) {
6363	/*
6364	* initialize the cache if needed
6365	*/
6366	if (sizeCache == 0) {
6367	sizeCache = 10;
6368	oldNs = (xmlNsPtr ) xmlMalloc(sizeCache
6369	sizeof(xmlNsPtr));
6370	if (oldNs == NULL) {
6371	xmlTreeErrMemory("fixing namespaces");
6372	return(-1);
6373	}
6374	newNs = (xmlNsPtr ) xmlMalloc(sizeCache
6375	sizeof(xmlNsPtr));
6376	if (newNs == NULL) {
6377	xmlTreeErrMemory("fixing namespaces");
6378	xmlFree(oldNs);
6379	return(-1);
6380	}
6381	}
6382	for (i = 0;i < nbCache;i++) {
6383	if (oldNs[i] == attr->ns) {
6384	attr->ns = newNs[i];
6385	break;
6386	}
6387	}
6388	if (i == nbCache) {
6389	/*
6390	* OK we need to recreate a new namespace definition
6391	*/
6392	n = xmlNewReconciliedNs(doc, tree, attr->ns);
6393	if (n != NULL) { /* :-( what if else ??? */
6394	/*
6395	* check if we need to grow the cache buffers.
6396	*/
6397	if (sizeCache <= nbCache) {
6398	sizeCache *= 2;
6399	oldNs = (xmlNsPtr *) xmlRealloc(oldNs,
6400	sizeCache * sizeof(xmlNsPtr));
6401	if (oldNs == NULL) {
6402	xmlTreeErrMemory("fixing namespaces");
6403	xmlFree(newNs);
6404	return(-1);
6405	}
6406	newNs = (xmlNsPtr *) xmlRealloc(newNs,
6407	sizeCache * sizeof(xmlNsPtr));
6408	if (newNs == NULL) {
6409	xmlTreeErrMemory("fixing namespaces");
6410	xmlFree(oldNs);
6411	return(-1);
6412	}
6413	}
6414	newNs[nbCache] = n;
6415	oldNs[nbCache++] = attr->ns;
6416	attr->ns = n;
6417	}
6418	}
6419	}
6420	attr = attr->next;
6421	}
6422	}
6423
6424	/*
6425	* Browse the full subtree, deep first
6426	*/
6427	if ((node->children != NULL) && (node->type != XML_ENTITY_REF_NODE)) {
6428	/* deep first */
6429	node = node->children;
6430	} else if ((node != tree) && (node->next != NULL)) {
6431	/* then siblings */
6432	node = node->next;
6433	} else if (node != tree) {
6434	/* go up to parents->next if needed */
6435	while (node != tree) {
6436	if (node->parent != NULL)
6437	node = node->parent;
6438	if ((node != tree) && (node->next != NULL)) {
6439	node = node->next;
6440	break;
6441	}
6442	if (node->parent == NULL) {
6443	node = NULL;
6444	break;
6445	}
6446	}
6447	/* exit condition */
6448	if (node == tree)
6449	node = NULL;
6450	} else
6451	break;
6452	}
6453	if (oldNs != NULL)
6454	xmlFree(oldNs);
6455	if (newNs != NULL)
6456	xmlFree(newNs);
6457	return(ret);
6458	}
6459	#endif /* LIBXML_TREE_ENABLED */
6460
6461	static xmlAttrPtr
6462	xmlGetPropNodeInternal(const xmlNode node, const xmlChar name,
6463	const xmlChar *nsName, int useDTD)
6464	{
6465	xmlAttrPtr prop;
6466
6467	if ((node == NULL) \|\| (node->type != XML_ELEMENT_NODE) \|\| (name == NULL))
6468	return(NULL);
6469
6470	if (node->properties != NULL) {
6471	prop = node->properties;
6472	if (nsName == NULL) {
6473	/*
6474	* We want the attr to be in no namespace.
6475	*/
6476	do {
6477	if ((prop->ns == NULL) && xmlStrEqual(prop->name, name)) {
6478	return(prop);
6479	}
6480	prop = prop->next;
6481	} while (prop != NULL);
6482	} else {
6483	/*
6484	* We want the attr to be in the specified namespace.
6485	*/
6486	do {
6487	if ((prop->ns != NULL) && xmlStrEqual(prop->name, name) &&
6488	((prop->ns->href == nsName) \|\|
6489	xmlStrEqual(prop->ns->href, nsName)))
6490	{
6491	return(prop);
6492	}
6493	prop = prop->next;
6494	} while (prop != NULL);
6495	}
6496	}
6497
6498	#ifdef LIBXML_TREE_ENABLED
6499	if (! useDTD)
6500	return(NULL);
6501	/*
6502	* Check if there is a default/fixed attribute declaration in
6503	* the internal or external subset.
6504	*/
6505	if ((node->doc != NULL) && (node->doc->intSubset != NULL)) {
6506	xmlDocPtr doc = node->doc;
6507	xmlAttributePtr attrDecl = NULL;
6508	xmlChar elemQName, tmpstr = NULL;
6509
6510	/*
6511	* We need the QName of the element for the DTD-lookup.
6512	*/
6513	if ((node->ns != NULL) && (node->ns->prefix != NULL)) {
6514	tmpstr = xmlStrdup(node->ns->prefix);
6515	tmpstr = xmlStrcat(tmpstr, BAD_CAST ":");
6516	tmpstr = xmlStrcat(tmpstr, node->name);
6517	if (tmpstr == NULL)
6518	return(NULL);
6519	elemQName = tmpstr;
6520	} else
6521	elemQName = (xmlChar *) node->name;
6522	if (nsName == NULL) {
6523	/*
6524	* The common and nice case: Attr in no namespace.
6525	*/
6526	attrDecl = xmlGetDtdQAttrDesc(doc->intSubset,
6527	elemQName, name, NULL);
6528	if ((attrDecl == NULL) && (doc->extSubset != NULL)) {
6529	attrDecl = xmlGetDtdQAttrDesc(doc->extSubset,
6530	elemQName, name, NULL);
6531	}
6532	} else {
6533	xmlNsPtr nsList, cur;
6534
6535	/*
6536	* The ugly case: Search using the prefixes of in-scope
6537	* ns-decls corresponding to @nsName.
6538	*/
6539	nsList = xmlGetNsList(node->doc, node);
6540	if (nsList == NULL) {
6541	if (tmpstr != NULL)
6542	xmlFree(tmpstr);
6543	return(NULL);
6544	}
6545	cur = nsList;
6546	while (*cur != NULL) {
6547	if (xmlStrEqual((*cur)->href, nsName)) {
6548	attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, elemQName,
6549	name, (*cur)->prefix);
6550	if (attrDecl)
6551	break;
6552	if (doc->extSubset != NULL) {
6553	attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, elemQName,
6554	name, (*cur)->prefix);
6555	if (attrDecl)
6556	break;
6557	}
6558	}
6559	cur++;
6560	}
6561	xmlFree(nsList);
6562	}
6563	if (tmpstr != NULL)
6564	xmlFree(tmpstr);
6565	/*
6566	* Only default/fixed attrs are relevant.
6567	*/
6568	if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))
6569	return((xmlAttrPtr) attrDecl);
6570	}
6571	#endif /* LIBXML_TREE_ENABLED */
6572	return(NULL);
6573	}
6574
6575	static xmlChar*
6576	xmlGetPropNodeValueInternal(const xmlAttr *prop)
6577	{
6578	if (prop == NULL)
6579	return(NULL);
6580	if (prop->type == XML_ATTRIBUTE_NODE) {
6581	/*
6582	* Note that we return at least the empty string.
6583	* TODO: Do we really always want that?
6584	*/
6585	if (prop->children != NULL) {
6586	if ((prop->children->next == NULL) &&
6587	((prop->children->type == XML_TEXT_NODE) \|\|
6588	(prop->children->type == XML_CDATA_SECTION_NODE)))
6589	{
6590	/*
6591	* Optimization for the common case: only 1 text node.
6592	*/
6593	return(xmlStrdup(prop->children->content));
6594	} else {
6595	xmlChar *ret;
6596
6597	ret = xmlNodeListGetString(prop->doc, prop->children, 1);
6598	if (ret != NULL)
6599	return(ret);
6600	}
6601	}
6602	return(xmlStrdup((xmlChar *)""));
6603	} else if (prop->type == XML_ATTRIBUTE_DECL) {
6604	return(xmlStrdup(((xmlAttributePtr)prop)->defaultValue));
6605	}
6606	return(NULL);
6607	}
6608
6609	/**
6610	* xmlHasProp:
6611	* @node: the node
6612	* @name: the attribute name
6613	*
6614	* Search an attribute associated to a node
6615	* This function also looks in DTD attribute declaration for #FIXED or
6616	* default declaration values unless DTD use has been turned off.
6617	*
6618	* Returns the attribute or the attribute declaration or NULL if
6619	* neither was found.
6620	*/
6621	xmlAttrPtr
6622	xmlHasProp(const xmlNode node, const xmlChar name) {
6623	xmlAttrPtr prop;
6624	xmlDocPtr doc;
6625
6626	if ((node == NULL) \|\| (node->type != XML_ELEMENT_NODE) \|\| (name == NULL))
6627	return(NULL);
6628	/*
6629	* Check on the properties attached to the node
6630	*/
6631	prop = node->properties;
6632	while (prop != NULL) {
6633	if (xmlStrEqual(prop->name, name)) {
6634	return(prop);
6635	}
6636	prop = prop->next;
6637	}
6638	if (!xmlCheckDTD) return(NULL);
6639
6640	/*
6641	* Check if there is a default declaration in the internal
6642	* or external subsets
6643	*/
6644	doc = node->doc;
6645	if (doc != NULL) {
6646	xmlAttributePtr attrDecl;
6647	if (doc->intSubset != NULL) {
6648	attrDecl = xmlGetDtdAttrDesc(doc->intSubset, node->name, name);
6649	if ((attrDecl == NULL) && (doc->extSubset != NULL))
6650	attrDecl = xmlGetDtdAttrDesc(doc->extSubset, node->name, name);
6651	if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))
6652	/* return attribute declaration only if a default value is given
6653	(that includes #FIXED declarations) */
6654	return((xmlAttrPtr) attrDecl);
6655	}
6656	}
6657	return(NULL);
6658	}
6659
6660	/**
6661	* xmlHasNsProp:
6662	* @node: the node
6663	* @name: the attribute name
6664	* @nameSpace: the URI of the namespace
6665	*
6666	* Search for an attribute associated to a node
6667	* This attribute has to be anchored in the namespace specified.
6668	* This does the entity substitution.
6669	* This function looks in DTD attribute declaration for #FIXED or
6670	* default declaration values unless DTD use has been turned off.
6671	* Note that a namespace of NULL indicates to use the default namespace.
6672	*
6673	* Returns the attribute or the attribute declaration or NULL
6674	* if neither was found.
6675	*/
6676	xmlAttrPtr
6677	xmlHasNsProp(const xmlNode node, const xmlChar name, const xmlChar *nameSpace) {
6678
6679	return(xmlGetPropNodeInternal(node, name, nameSpace, xmlCheckDTD));
6680	}
6681
6682	/**
6683	* xmlGetProp:
6684	* @node: the node
6685	* @name: the attribute name
6686	*
6687	* Search and get the value of an attribute associated to a node
6688	* This does the entity substitution.
6689	* This function looks in DTD attribute declaration for #FIXED or
6690	* default declaration values unless DTD use has been turned off.
6691	* NOTE: this function acts independently of namespaces associated
6692	* to the attribute. Use xmlGetNsProp() or xmlGetNoNsProp()
6693	* for namespace aware processing.
6694	*
6695	* Returns the attribute value or NULL if not found.
6696	* It's up to the caller to free the memory with xmlFree().
6697	*/
6698	xmlChar *
6699	xmlGetProp(const xmlNode node, const xmlChar name) {
6700	xmlAttrPtr prop;
6701
6702	prop = xmlHasProp(node, name);
6703	if (prop == NULL)
6704	return(NULL);
6705	return(xmlGetPropNodeValueInternal(prop));
6706	}
6707
6708	/**
6709	* xmlGetNoNsProp:
6710	* @node: the node
6711	* @name: the attribute name
6712	*
6713	* Search and get the value of an attribute associated to a node
6714	* This does the entity substitution.
6715	* This function looks in DTD attribute declaration for #FIXED or
6716	* default declaration values unless DTD use has been turned off.
6717	* This function is similar to xmlGetProp except it will accept only
6718	* an attribute in no namespace.
6719	*
6720	* Returns the attribute value or NULL if not found.
6721	* It's up to the caller to free the memory with xmlFree().
6722	*/
6723	xmlChar *
6724	xmlGetNoNsProp(const xmlNode node, const xmlChar name) {
6725	xmlAttrPtr prop;
6726
6727	prop = xmlGetPropNodeInternal(node, name, NULL, xmlCheckDTD);
6728	if (prop == NULL)
6729	return(NULL);
6730	return(xmlGetPropNodeValueInternal(prop));
6731	}
6732
6733	/**
6734	* xmlGetNsProp:
6735	* @node: the node
6736	* @name: the attribute name
6737	* @nameSpace: the URI of the namespace
6738	*
6739	* Search and get the value of an attribute associated to a node
6740	* This attribute has to be anchored in the namespace specified.
6741	* This does the entity substitution.
6742	* This function looks in DTD attribute declaration for #FIXED or
6743	* default declaration values unless DTD use has been turned off.
6744	*
6745	* Returns the attribute value or NULL if not found.
6746	* It's up to the caller to free the memory with xmlFree().
6747	*/
6748	xmlChar *
6749	xmlGetNsProp(const xmlNode node, const xmlChar name, const xmlChar *nameSpace) {
6750	xmlAttrPtr prop;
6751
6752	prop = xmlGetPropNodeInternal(node, name, nameSpace, xmlCheckDTD);
6753	if (prop == NULL)
6754	return(NULL);
6755	return(xmlGetPropNodeValueInternal(prop));
6756	}
6757
6758	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_SCHEMAS_ENABLED)
6759	/**
6760	* xmlUnsetProp:
6761	* @node: the node
6762	* @name: the attribute name
6763	*
6764	* Remove an attribute carried by a node.
6765	* This handles only attributes in no namespace.
6766	* Returns 0 if successful, -1 if not found
6767	*/
6768	int
6769	xmlUnsetProp(xmlNodePtr node, const xmlChar *name) {
6770	xmlAttrPtr prop;
6771
6772	prop = xmlGetPropNodeInternal(node, name, NULL, 0);
6773	if (prop == NULL)
6774	return(-1);
6775	xmlUnlinkNode((xmlNodePtr) prop);
6776	xmlFreeProp(prop);
6777	return(0);
6778	}
6779
6780	/**
6781	* xmlUnsetNsProp:
6782	* @node: the node
6783	* @ns: the namespace definition
6784	* @name: the attribute name
6785	*
6786	* Remove an attribute carried by a node.
6787	* Returns 0 if successful, -1 if not found
6788	*/
6789	int
6790	xmlUnsetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name) {
6791	xmlAttrPtr prop;
6792
6793	prop = xmlGetPropNodeInternal(node, name, (ns != NULL) ? ns->href : NULL, 0);
6794	if (prop == NULL)
6795	return(-1);
6796	xmlUnlinkNode((xmlNodePtr) prop);
6797	xmlFreeProp(prop);
6798	return(0);
6799	}
6800	#endif
6801
6802	#if defined(LIBXML_TREE_ENABLED) \|\| defined(LIBXML_XINCLUDE_ENABLED) \|\| defined(LIBXML_SCHEMAS_ENABLED) \|\| defined(LIBXML_HTML_ENABLED)
6803	/**
6804	* xmlSetProp:
6805	* @node: the node
6806	* @name: the attribute name (a QName)
6807	* @value: the attribute value
6808	*
6809	* Set (or reset) an attribute carried by a node.
6810	* If @name has a prefix, then the corresponding
6811	* namespace-binding will be used, if in scope; it is an
6812	* error it there's no such ns-binding for the prefix in
6813	* scope.
6814	* Returns the attribute pointer.
6815	*
6816	*/
6817	xmlAttrPtr
6818	xmlSetProp(xmlNodePtr node, const xmlChar name, const xmlChar value) {
6819	int len;
6820	const xmlChar *nqname;
6821
6822	if ((node == NULL) \|\| (name == NULL) \|\| (node->type != XML_ELEMENT_NODE))
6823	return(NULL);
6824
6825	/*
6826	* handle QNames
6827	*/
6828	nqname = xmlSplitQName3(name, &len);
6829	if (nqname != NULL) {
6830	xmlNsPtr ns;
6831	xmlChar *prefix = xmlStrndup(name, len);
6832	ns = xmlSearchNs(node->doc, node, prefix);
6833	if (prefix != NULL)
6834	xmlFree(prefix);
6835	if (ns != NULL)
6836	return(xmlSetNsProp(node, ns, nqname, value));
6837	}
6838	return(xmlSetNsProp(node, NULL, name, value));
6839	}
6840
6841	/**
6842	* xmlSetNsProp:
6843	* @node: the node
6844	* @ns: the namespace definition
6845	* @name: the attribute name
6846	* @value: the attribute value
6847	*
6848	* Set (or reset) an attribute carried by a node.
6849	* The ns structure must be in scope, this is not checked
6850	*
6851	* Returns the attribute pointer.
6852	*/
6853	xmlAttrPtr
6854	xmlSetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name,
6855	const xmlChar *value)
6856	{
6857	xmlAttrPtr prop;
6858
6859	if (ns && (ns->href == NULL))
6860	return(NULL);
6861	prop = xmlGetPropNodeInternal(node, name, (ns != NULL) ? ns->href : NULL, 0);
6862	if (prop != NULL) {
6863	/*
6864	* Modify the attribute's value.
6865	*/
6866	if (prop->atype == XML_ATTRIBUTE_ID) {
6867	xmlRemoveID(node->doc, prop);
6868	prop->atype = XML_ATTRIBUTE_ID;
6869	}
6870	if (prop->children != NULL)
6871	xmlFreeNodeList(prop->children);
6872	prop->children = NULL;
6873	prop->last = NULL;
6874	prop->ns = ns;
6875	if (value != NULL) {
6876	xmlNodePtr tmp;
6877
6878	if(!xmlCheckUTF8(value)) {
6879	xmlTreeErr(XML_TREE_NOT_UTF8, (xmlNodePtr) node->doc,
6880	NULL);
6881	if (node->doc != NULL)
6882	node->doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");
6883	}
6884	prop->children = xmlNewDocText(node->doc, value);
6885	prop->last = NULL;
6886	tmp = prop->children;
6887	while (tmp != NULL) {
6888	tmp->parent = (xmlNodePtr) prop;
6889	if (tmp->next == NULL)
6890	prop->last = tmp;
6891	tmp = tmp->next;
6892	}
6893	}
6894	if (prop->atype == XML_ATTRIBUTE_ID)
6895	xmlAddID(NULL, node->doc, value, prop);
6896	return(prop);
6897	}
6898	/*
6899	* No equal attr found; create a new one.
6900	*/
6901	return(xmlNewPropInternal(node, ns, name, value, 0));
6902	}
6903
6904	#endif /* LIBXML_TREE_ENABLED */
6905
6906	/**
6907	* xmlNodeIsText:
6908	* @node: the node
6909	*
6910	* Is this node a Text node ?
6911	* Returns 1 yes, 0 no
6912	*/
6913	int
6914	xmlNodeIsText(const xmlNode *node) {
6915	if (node == NULL) return(0);
6916
6917	if (node->type == XML_TEXT_NODE) return(1);
6918	return(0);
6919	}
6920
6921	/**
6922	* xmlIsBlankNode:
6923	* @node: the node
6924	*
6925	* Checks whether this node is an empty or whitespace only
6926	* (and possibly ignorable) text-node.
6927	*
6928	* Returns 1 yes, 0 no
6929	*/
6930	int
6931	xmlIsBlankNode(const xmlNode *node) {
6932	const xmlChar *cur;
6933	if (node == NULL) return(0);
6934
6935	if ((node->type != XML_TEXT_NODE) &&
6936	(node->type != XML_CDATA_SECTION_NODE))
6937	return(0);
6938	if (node->content == NULL) return(1);
6939	cur = node->content;
6940	while (*cur != 0) {
6941	if (!IS_BLANK_CH(*cur)) return(0);
6942	cur++;
6943	}
6944
6945	return(1);
6946	}
6947
6948	/**
6949	* xmlTextConcat:
6950	* @node: the node
6951	* @content: the content
6952	* @len: @content length
6953	*
6954	* Concat the given string at the end of the existing node content
6955	*
6956	* Returns -1 in case of error, 0 otherwise
6957	*/
6958
6959	int
6960	xmlTextConcat(xmlNodePtr node, const xmlChar *content, int len) {
6961	if (node == NULL) return(-1);
6962
6963	if ((node->type != XML_TEXT_NODE) &&
6964	(node->type != XML_CDATA_SECTION_NODE) &&
6965	(node->type != XML_COMMENT_NODE) &&
6966	(node->type != XML_PI_NODE)) {
6967	#ifdef DEBUG_TREE
6968	xmlGenericError(xmlGenericErrorContext,
6969	"xmlTextConcat: node is not text nor CDATA\n");
6970	#endif
6971	return(-1);
6972	}
6973	/* need to check if content is currently in the dictionary */
6974	if ((node->content == (xmlChar *) &(node->properties)) \|\|
6975	((node->doc != NULL) && (node->doc->dict != NULL) &&
6976	xmlDictOwns(node->doc->dict, node->content))) {
6977	node->content = xmlStrncatNew(node->content, content, len);
6978	} else {
6979	node->content = xmlStrncat(node->content, content, len);
6980	}
6981	node->properties = NULL;
6982	if (node->content == NULL)
6983	return(-1);
6984	return(0);
6985	}
6986
6987	/************************************************************************
6988	* *
6989	* Output : to a FILE or in memory *
6990	* *
6991	************************************************************************/
6992
6993	/**
6994	* xmlBufferCreate:
6995	*
6996	* routine to create an XML buffer.
6997	* returns the new structure.
6998	*/
6999	xmlBufferPtr
7000	xmlBufferCreate(void) {
7001	xmlBufferPtr ret;
7002
7003	ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
7004	if (ret == NULL) {
7005	xmlTreeErrMemory("creating buffer");
7006	return(NULL);
7007	}
7008	ret->use = 0;
7009	ret->size = xmlDefaultBufferSize;
7010	ret->alloc = xmlBufferAllocScheme;
7011	ret->content = (xmlChar ) xmlMallocAtomic(ret->size sizeof(xmlChar));
7012	if (ret->content == NULL) {
7013	xmlTreeErrMemory("creating buffer");
7014	xmlFree(ret);
7015	return(NULL);
7016	}
7017	ret->content[0] = 0;
7018	ret->contentIO = NULL;
7019	return(ret);
7020	}
7021
7022	/**
7023	* xmlBufferCreateSize:
7024	* @size: initial size of buffer
7025	*
7026	* routine to create an XML buffer.
7027	* returns the new structure.
7028	*/
7029	xmlBufferPtr
7030	xmlBufferCreateSize(size_t size) {
7031	xmlBufferPtr ret;
7032
7033	ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
7034	if (ret == NULL) {
7035	xmlTreeErrMemory("creating buffer");
7036	return(NULL);
7037	}
7038	ret->use = 0;
7039	ret->alloc = xmlBufferAllocScheme;
7040	ret->size = (size ? size+2 : 0); /* +1 for ending null */
7041	if (ret->size){
7042	ret->content = (xmlChar ) xmlMallocAtomic(ret->size sizeof(xmlChar));
7043	if (ret->content == NULL) {
7044	xmlTreeErrMemory("creating buffer");
7045	xmlFree(ret);
7046	return(NULL);
7047	}
7048	ret->content[0] = 0;
7049	} else
7050	ret->content = NULL;
7051	ret->contentIO = NULL;
7052	return(ret);
7053	}
7054
7055	/**
7056	* xmlBufferDetach:
7057	* @buf: the buffer
7058	*
7059	* Remove the string contained in a buffer and gie it back to the
7060	* caller. The buffer is reset to an empty content.
7061	* This doesn't work with immutable buffers as they can't be reset.
7062	*
7063	* Returns the previous string contained by the buffer.
7064	*/
7065	xmlChar *
7066	xmlBufferDetach(xmlBufferPtr buf) {
7067	xmlChar *ret;
7068
7069	if (buf == NULL)
7070	return(NULL);
7071	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)
7072	return(NULL);
7073
7074	ret = buf->content;
7075	buf->content = NULL;
7076	buf->size = 0;
7077	buf->use = 0;
7078
7079	return ret;
7080	}
7081
7082
7083	/**
7084	* xmlBufferCreateStatic:
7085	* @mem: the memory area
7086	* @size: the size in byte
7087	*
7088	* routine to create an XML buffer from an immutable memory area.
7089	* The area won't be modified nor copied, and is expected to be
7090	* present until the end of the buffer lifetime.
7091	*
7092	* returns the new structure.
7093	*/
7094	xmlBufferPtr
7095	xmlBufferCreateStatic(void *mem, size_t size) {
7096	xmlBufferPtr ret;
7097
7098	if ((mem == NULL) \|\| (size == 0))
7099	return(NULL);
7100
7101	ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));
7102	if (ret == NULL) {
7103	xmlTreeErrMemory("creating buffer");
7104	return(NULL);
7105	}
7106	ret->use = size;
7107	ret->size = size;
7108	ret->alloc = XML_BUFFER_ALLOC_IMMUTABLE;
7109	ret->content = (xmlChar *) mem;
7110	return(ret);
7111	}
7112
7113	/**
7114	* xmlBufferSetAllocationScheme:
7115	* @buf: the buffer to tune
7116	* @scheme: allocation scheme to use
7117	*
7118	* Sets the allocation scheme for this buffer
7119	*/
7120	void
7121	xmlBufferSetAllocationScheme(xmlBufferPtr buf,
7122	xmlBufferAllocationScheme scheme) {
7123	if (buf == NULL) {
7124	#ifdef DEBUG_BUFFER
7125	xmlGenericError(xmlGenericErrorContext,
7126	"xmlBufferSetAllocationScheme: buf == NULL\n");
7127	#endif
7128	return;
7129	}
7130	if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) \|\|
7131	(buf->alloc == XML_BUFFER_ALLOC_IO)) return;
7132	if ((scheme == XML_BUFFER_ALLOC_DOUBLEIT) \|\|
7133	(scheme == XML_BUFFER_ALLOC_EXACT) \|\|
7134	(scheme == XML_BUFFER_ALLOC_HYBRID) \|\|
7135	(scheme == XML_BUFFER_ALLOC_IMMUTABLE))
7136	buf->alloc = scheme;
7137	}
7138
7139	/**
7140	* xmlBufferFree:
7141	* @buf: the buffer to free
7142	*
7143	* Frees an XML buffer. It frees both the content and the structure which
7144	* encapsulate it.
7145	*/
7146	void
7147	xmlBufferFree(xmlBufferPtr buf) {
7148	if (buf == NULL) {
7149	#ifdef DEBUG_BUFFER
7150	xmlGenericError(xmlGenericErrorContext,
7151	"xmlBufferFree: buf == NULL\n");
7152	#endif
7153	return;
7154	}
7155
7156	if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&
7157	(buf->contentIO != NULL)) {
7158	xmlFree(buf->contentIO);
7159	} else if ((buf->content != NULL) &&
7160	(buf->alloc != XML_BUFFER_ALLOC_IMMUTABLE)) {
7161	xmlFree(buf->content);
7162	}
7163	xmlFree(buf);
7164	}
7165
7166	/**
7167	* xmlBufferEmpty:
7168	* @buf: the buffer
7169	*
7170	* empty a buffer.
7171	*/
7172	void
7173	xmlBufferEmpty(xmlBufferPtr buf) {
7174	if (buf == NULL) return;
7175	if (buf->content == NULL) return;
7176	buf->use = 0;
7177	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {
7178	buf->content = BAD_CAST "";
7179	} else if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&
7180	(buf->contentIO != NULL)) {
7181	size_t start_buf = buf->content - buf->contentIO;
7182
7183	buf->size += start_buf;
7184	buf->content = buf->contentIO;
7185	buf->content[0] = 0;
7186	} else {
7187	buf->content[0] = 0;
7188	}
7189	}
7190
7191	/**
7192	* xmlBufferShrink:
7193	* @buf: the buffer to dump
7194	* @len: the number of xmlChar to remove
7195	*
7196	* Remove the beginning of an XML buffer.
7197	*
7198	* Returns the number of #xmlChar removed, or -1 in case of failure.
7199	*/
7200	int
7201	xmlBufferShrink(xmlBufferPtr buf, unsigned int len) {
7202	if (buf == NULL) return(-1);
7203	if (len == 0) return(0);
7204	if (len > buf->use) return(-1);
7205
7206	buf->use -= len;
7207	if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) \|\|
7208	((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL))) {
7209	/*
7210	* we just move the content pointer, but also make sure
7211	* the perceived buffer size has shrinked accordingly
7212	*/
7213	buf->content += len;
7214	buf->size -= len;
7215
7216	/*
7217	* sometimes though it maybe be better to really shrink
7218	* on IO buffers
7219	*/
7220	if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7221	size_t start_buf = buf->content - buf->contentIO;
7222	if (start_buf >= buf->size) {
7223	memmove(buf->contentIO, &buf->content[0], buf->use);
7224	buf->content = buf->contentIO;
7225	buf->content[buf->use] = 0;
7226	buf->size += start_buf;
7227	}
7228	}
7229	} else {
7230	memmove(buf->content, &buf->content[len], buf->use);
7231	buf->content[buf->use] = 0;
7232	}
7233	return(len);
7234	}
7235
7236	/**
7237	* xmlBufferGrow:
7238	* @buf: the buffer
7239	* @len: the minimum free size to allocate
7240	*
7241	* Grow the available space of an XML buffer.
7242	*
7243	* Returns the new available space or -1 in case of error
7244	*/
7245	int
7246	xmlBufferGrow(xmlBufferPtr buf, unsigned int len) {
7247	int size;
7248	xmlChar *newbuf;
7249
7250	if (buf == NULL) return(-1);
7251
7252	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
7253	if (len + buf->use < buf->size) return(0);
7254
7255	/*
7256	* Windows has a BIG problem on realloc timing, so we try to double
7257	* the buffer size (if that's enough) (bug 146697)
7258	* Apparently BSD too, and it's probably best for linux too
7259	* On an embedded system this may be something to change
7260	*/
7261	#if 1
7262	if (buf->size > len)
7263	size = buf->size * 2;
7264	else
7265	size = buf->use + len + 100;
7266	#else
7267	size = buf->use + len + 100;
7268	#endif
7269
7270	if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7271	size_t start_buf = buf->content - buf->contentIO;
7272
7273	newbuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + size);
7274	if (newbuf == NULL) {
7275	xmlTreeErrMemory("growing buffer");
7276	return(-1);
7277	}
7278	buf->contentIO = newbuf;
7279	buf->content = newbuf + start_buf;
7280	} else {
7281	newbuf = (xmlChar *) xmlRealloc(buf->content, size);
7282	if (newbuf == NULL) {
7283	xmlTreeErrMemory("growing buffer");
7284	return(-1);
7285	}
7286	buf->content = newbuf;
7287	}
7288	buf->size = size;
7289	return(buf->size - buf->use);
7290	}
7291
7292	/**
7293	* xmlBufferDump:
7294	* @file: the file output
7295	* @buf: the buffer to dump
7296	*
7297	* Dumps an XML buffer to a FILE *.
7298	* Returns the number of #xmlChar written
7299	*/
7300	int
7301	xmlBufferDump(FILE *file, xmlBufferPtr buf) {
7302	int ret;
7303
7304	if (buf == NULL) {
7305	#ifdef DEBUG_BUFFER
7306	xmlGenericError(xmlGenericErrorContext,
7307	"xmlBufferDump: buf == NULL\n");
7308	#endif
7309	return(0);
7310	}
7311	if (buf->content == NULL) {
7312	#ifdef DEBUG_BUFFER
7313	xmlGenericError(xmlGenericErrorContext,
7314	"xmlBufferDump: buf->content == NULL\n");
7315	#endif
7316	return(0);
7317	}
7318	if (file == NULL)
7319	file = stdout;
7320	ret = fwrite(buf->content, sizeof(xmlChar), buf->use, file);
7321	return(ret);
7322	}
7323
7324	/**
7325	* xmlBufferContent:
7326	* @buf: the buffer
7327	*
7328	* Function to extract the content of a buffer
7329	*
7330	* Returns the internal content
7331	*/
7332
7333	const xmlChar *
7334	xmlBufferContent(const xmlBuffer *buf)
7335	{
7336	if(!buf)
7337	return NULL;
7338
7339	return buf->content;
7340	}
7341
7342	/**
7343	* xmlBufferLength:
7344	* @buf: the buffer
7345	*
7346	* Function to get the length of a buffer
7347	*
7348	* Returns the length of data in the internal content
7349	*/
7350
7351	int
7352	xmlBufferLength(const xmlBuffer *buf)
7353	{
7354	if(!buf)
7355	return 0;
7356
7357	return buf->use;
7358	}
7359
7360	/**
7361	* xmlBufferResize:
7362	* @buf: the buffer to resize
7363	* @size: the desired size
7364	*
7365	* Resize a buffer to accommodate minimum size of @size.
7366	*
7367	* Returns 0 in case of problems, 1 otherwise
7368	*/
7369	int
7370	xmlBufferResize(xmlBufferPtr buf, unsigned int size)
7371	{
7372	unsigned int newSize;
7373	xmlChar* rebuf = NULL;
7374	size_t start_buf;
7375
7376	if (buf == NULL)
7377	return(0);
7378
7379	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
7380
7381	/* Don't resize if we don't have to */
7382	if (size < buf->size)
7383	return 1;
7384
7385	/* figure out new size */
7386	switch (buf->alloc){
7387	case XML_BUFFER_ALLOC_IO:
7388	case XML_BUFFER_ALLOC_DOUBLEIT:
7389	/take care of empty case/
7390	newSize = (buf->size ? buf->size*2 : size + 10);
7391	while (size > newSize) {
7392	if (newSize > UINT_MAX / 2) {
7393	xmlTreeErrMemory("growing buffer");
7394	return 0;
7395	}
7396	newSize *= 2;
7397	}
7398	break;
7399	case XML_BUFFER_ALLOC_EXACT:
7400	newSize = size+10;
7401	break;
7402	case XML_BUFFER_ALLOC_HYBRID:
7403	if (buf->use < BASE_BUFFER_SIZE)
7404	newSize = size;
7405	else {
7406	newSize = buf->size * 2;
7407	while (size > newSize) {
7408	if (newSize > UINT_MAX / 2) {
7409	xmlTreeErrMemory("growing buffer");
7410	return 0;
7411	}
7412	newSize *= 2;
7413	}
7414	}
7415	break;
7416
7417	default:
7418	newSize = size+10;
7419	break;
7420	}
7421
7422	if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7423	start_buf = buf->content - buf->contentIO;
7424
7425	if (start_buf > newSize) {
7426	/* move data back to start */
7427	memmove(buf->contentIO, buf->content, buf->use);
7428	buf->content = buf->contentIO;
7429	buf->content[buf->use] = 0;
7430	buf->size += start_buf;
7431	} else {
7432	rebuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + newSize);
7433	if (rebuf == NULL) {
7434	xmlTreeErrMemory("growing buffer");
7435	return 0;
7436	}
7437	buf->contentIO = rebuf;
7438	buf->content = rebuf + start_buf;
7439	}
7440	} else {
7441	if (buf->content == NULL) {
7442	rebuf = (xmlChar *) xmlMallocAtomic(newSize);
7443	} else if (buf->size - buf->use < 100) {
7444	rebuf = (xmlChar *) xmlRealloc(buf->content, newSize);
7445	} else {
7446	/*
7447	* if we are reallocating a buffer far from being full, it's
7448	* better to make a new allocation and copy only the used range
7449	* and free the old one.
7450	*/
7451	rebuf = (xmlChar *) xmlMallocAtomic(newSize);
7452	if (rebuf != NULL) {
7453	memcpy(rebuf, buf->content, buf->use);
7454	xmlFree(buf->content);
7455	rebuf[buf->use] = 0;
7456	}
7457	}
7458	if (rebuf == NULL) {
7459	xmlTreeErrMemory("growing buffer");
7460	return 0;
7461	}
7462	buf->content = rebuf;
7463	}
7464	buf->size = newSize;
7465
7466	return 1;
7467	}
7468
7469	/**
7470	* xmlBufferAdd:
7471	* @buf: the buffer to dump
7472	* @str: the #xmlChar string
7473	* @len: the number of #xmlChar to add
7474	*
7475	* Add a string range to an XML buffer. if len == -1, the length of
7476	* str is recomputed.
7477	*
7478	* Returns 0 successful, a positive error code number otherwise
7479	* and -1 in case of internal or API error.
7480	*/
7481	int
7482	xmlBufferAdd(xmlBufferPtr buf, const xmlChar *str, int len) {
7483	unsigned int needSize;
7484
7485	if ((str == NULL) \|\| (buf == NULL)) {
7486	return -1;
7487	}
7488	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7489	if (len < -1) {
7490	#ifdef DEBUG_BUFFER
7491	xmlGenericError(xmlGenericErrorContext,
7492	"xmlBufferAdd: len < 0\n");
7493	#endif
7494	return -1;
7495	}
7496	if (len == 0) return 0;
7497
7498	if (len < 0)
7499	len = xmlStrlen(str);
7500
7501	if (len < 0) return -1;
7502	if (len == 0) return 0;
7503
7504	needSize = buf->use + len + 2;
7505	if (needSize > buf->size){
7506	if (!xmlBufferResize(buf, needSize)){
7507	xmlTreeErrMemory("growing buffer");
7508	return XML_ERR_NO_MEMORY;
7509	}
7510	}
7511
7512	memmove(&buf->content[buf->use], str, len*sizeof(xmlChar));
7513	buf->use += len;
7514	buf->content[buf->use] = 0;
7515	return 0;
7516	}
7517
7518	/**
7519	* xmlBufferAddHead:
7520	* @buf: the buffer
7521	* @str: the #xmlChar string
7522	* @len: the number of #xmlChar to add
7523	*
7524	* Add a string range to the beginning of an XML buffer.
7525	* if len == -1, the length of @str is recomputed.
7526	*
7527	* Returns 0 successful, a positive error code number otherwise
7528	* and -1 in case of internal or API error.
7529	*/
7530	int
7531	xmlBufferAddHead(xmlBufferPtr buf, const xmlChar *str, int len) {
7532	unsigned int needSize;
7533
7534	if (buf == NULL)
7535	return(-1);
7536	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7537	if (str == NULL) {
7538	#ifdef DEBUG_BUFFER
7539	xmlGenericError(xmlGenericErrorContext,
7540	"xmlBufferAddHead: str == NULL\n");
7541	#endif
7542	return -1;
7543	}
7544	if (len < -1) {
7545	#ifdef DEBUG_BUFFER
7546	xmlGenericError(xmlGenericErrorContext,
7547	"xmlBufferAddHead: len < 0\n");
7548	#endif
7549	return -1;
7550	}
7551	if (len == 0) return 0;
7552
7553	if (len < 0)
7554	len = xmlStrlen(str);
7555
7556	if (len <= 0) return -1;
7557
7558	if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
7559	size_t start_buf = buf->content - buf->contentIO;
7560
7561	if (start_buf > (unsigned int) len) {
7562	/*
7563	* We can add it in the space previously shrinked
7564	*/
7565	buf->content -= len;
7566	memmove(&buf->content[0], str, len);
7567	buf->use += len;
7568	buf->size += len;
7569	return(0);
7570	}
7571	}
7572	needSize = buf->use + len + 2;
7573	if (needSize > buf->size){
7574	if (!xmlBufferResize(buf, needSize)){
7575	xmlTreeErrMemory("growing buffer");
7576	return XML_ERR_NO_MEMORY;
7577	}
7578	}
7579
7580	memmove(&buf->content[len], &buf->content[0], buf->use);
7581	memmove(&buf->content[0], str, len);
7582	buf->use += len;
7583	buf->content[buf->use] = 0;
7584	return 0;
7585	}
7586
7587	/**
7588	* xmlBufferCat:
7589	* @buf: the buffer to add to
7590	* @str: the #xmlChar string
7591	*
7592	* Append a zero terminated string to an XML buffer.
7593	*
7594	* Returns 0 successful, a positive error code number otherwise
7595	* and -1 in case of internal or API error.
7596	*/
7597	int
7598	xmlBufferCat(xmlBufferPtr buf, const xmlChar *str) {
7599	if (buf == NULL)
7600	return(-1);
7601	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7602	if (str == NULL) return -1;
7603	return xmlBufferAdd(buf, str, -1);
7604	}
7605
7606	/**
7607	* xmlBufferCCat:
7608	* @buf: the buffer to dump
7609	* @str: the C char string
7610	*
7611	* Append a zero terminated C string to an XML buffer.
7612	*
7613	* Returns 0 successful, a positive error code number otherwise
7614	* and -1 in case of internal or API error.
7615	*/
7616	int
7617	xmlBufferCCat(xmlBufferPtr buf, const char *str) {
7618	const char *cur;
7619
7620	if (buf == NULL)
7621	return(-1);
7622	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;
7623	if (str == NULL) {
7624	#ifdef DEBUG_BUFFER
7625	xmlGenericError(xmlGenericErrorContext,
7626	"xmlBufferCCat: str == NULL\n");
7627	#endif
7628	return -1;
7629	}
7630	for (cur = str;*cur != 0;cur++) {
7631	if (buf->use + 10 >= buf->size) {
7632	if (!xmlBufferResize(buf, buf->use+10)){
7633	xmlTreeErrMemory("growing buffer");
7634	return XML_ERR_NO_MEMORY;
7635	}
7636	}
7637	buf->content[buf->use++] = *cur;
7638	}
7639	buf->content[buf->use] = 0;
7640	return 0;
7641	}
7642
7643	/**
7644	* xmlBufferWriteCHAR:
7645	* @buf: the XML buffer
7646	* @string: the string to add
7647	*
7648	* routine which manages and grows an output buffer. This one adds
7649	* xmlChars at the end of the buffer.
7650	*/
7651	void
7652	xmlBufferWriteCHAR(xmlBufferPtr buf, const xmlChar *string) {
7653	if (buf == NULL)
7654	return;
7655	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
7656	xmlBufferCat(buf, string);
7657	}
7658
7659	/**
7660	* xmlBufferWriteChar:
7661	* @buf: the XML buffer output
7662	* @string: the string to add
7663	*
7664	* routine which manage and grows an output buffer. This one add
7665	* C chars at the end of the array.
7666	*/
7667	void
7668	xmlBufferWriteChar(xmlBufferPtr buf, const char *string) {
7669	if (buf == NULL)
7670	return;
7671	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
7672	xmlBufferCCat(buf, string);
7673	}
7674
7675
7676	/**
7677	* xmlBufferWriteQuotedString:
7678	* @buf: the XML buffer output
7679	* @string: the string to add
7680	*
7681	* routine which manage and grows an output buffer. This one writes
7682	* a quoted or double quoted #xmlChar string, checking first if it holds
7683	* quote or double-quotes internally
7684	*/
7685	void
7686	xmlBufferWriteQuotedString(xmlBufferPtr buf, const xmlChar *string) {
7687	const xmlChar cur, base;
7688	if (buf == NULL)
7689	return;
7690	if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;
7691	if (xmlStrchr(string, '\"')) {
7692	if (xmlStrchr(string, '\'')) {
7693	#ifdef DEBUG_BUFFER
7694	xmlGenericError(xmlGenericErrorContext,
7695	"xmlBufferWriteQuotedString: string contains quote and double-quotes !\n");
7696	#endif
7697	xmlBufferCCat(buf, "\"");
7698	base = cur = string;
7699	while(*cur != 0){
7700	if(*cur == '"'){
7701	if (base != cur)
7702	xmlBufferAdd(buf, base, cur - base);
7703	xmlBufferAdd(buf, BAD_CAST """, 6);
7704	cur++;
7705	base = cur;
7706	}
7707	else {
7708	cur++;
7709	}
7710	}
7711	if (base != cur)
7712	xmlBufferAdd(buf, base, cur - base);
7713	xmlBufferCCat(buf, "\"");
7714	}
7715	else{
7716	xmlBufferCCat(buf, "\'");
7717	xmlBufferCat(buf, string);
7718	xmlBufferCCat(buf, "\'");
7719	}
7720	} else {
7721	xmlBufferCCat(buf, "\"");
7722	xmlBufferCat(buf, string);
7723	xmlBufferCCat(buf, "\"");
7724	}
7725	}
7726
7727
7728	/**
7729	* xmlGetDocCompressMode:
7730	* @doc: the document
7731	*
7732	* get the compression ratio for a document, ZLIB based
7733	* Returns 0 (uncompressed) to 9 (max compression)
7734	*/
7735	int
7736	xmlGetDocCompressMode (const xmlDoc *doc) {
7737	if (doc == NULL) return(-1);
7738	return(doc->compression);
7739	}
7740
7741	/**
7742	* xmlSetDocCompressMode:
7743	* @doc: the document
7744	* @mode: the compression ratio
7745	*
7746	* set the compression ratio for a document, ZLIB based
7747	* Correct values: 0 (uncompressed) to 9 (max compression)
7748	*/
7749	void
7750	xmlSetDocCompressMode (xmlDocPtr doc, int mode) {
7751	if (doc == NULL) return;
7752	if (mode < 0) doc->compression = 0;
7753	else if (mode > 9) doc->compression = 9;
7754	else doc->compression = mode;
7755	}
7756
7757	/**
7758	* xmlGetCompressMode:
7759	*
7760	* get the default compression mode used, ZLIB based.
7761	* Returns 0 (uncompressed) to 9 (max compression)
7762	*/
7763	int
7764	xmlGetCompressMode(void)
7765	{
7766	return (xmlCompressMode);
7767	}
7768
7769	/**
7770	* xmlSetCompressMode:
7771	* @mode: the compression ratio
7772	*
7773	* set the default compression mode used, ZLIB based
7774	* Correct values: 0 (uncompressed) to 9 (max compression)
7775	*/
7776	void
7777	xmlSetCompressMode(int mode) {
7778	if (mode < 0) xmlCompressMode = 0;
7779	else if (mode > 9) xmlCompressMode = 9;
7780	else xmlCompressMode = mode;
7781	}
7782
7783	#define XML_TREE_NSMAP_PARENT -1
7784	#define XML_TREE_NSMAP_XML -2
7785	#define XML_TREE_NSMAP_DOC -3
7786	#define XML_TREE_NSMAP_CUSTOM -4
7787
7788	typedef struct xmlNsMapItem *xmlNsMapItemPtr;
7789	struct xmlNsMapItem {
7790	xmlNsMapItemPtr next;
7791	xmlNsMapItemPtr prev;
7792	xmlNsPtr oldNs; /* old ns decl reference */
7793	xmlNsPtr newNs; /* new ns decl reference */
7794	int shadowDepth; /* Shadowed at this depth */
7795	/*
7796	* depth:
7797	* >= 0 == @node's ns-decls
7798	* -1 == @parent's ns-decls
7799	* -2 == the doc->oldNs XML ns-decl
7800	* -3 == the doc->oldNs storage ns-decls
7801	* -4 == ns-decls provided via custom ns-handling
7802	*/
7803	int depth;
7804	};
7805
7806	typedef struct xmlNsMap *xmlNsMapPtr;
7807	struct xmlNsMap {
7808	xmlNsMapItemPtr first;
7809	xmlNsMapItemPtr last;
7810	xmlNsMapItemPtr pool;
7811	};
7812
7813	#define XML_NSMAP_NOTEMPTY(m) (((m) != NULL) && ((m)->first != NULL))
7814	#define XML_NSMAP_FOREACH(m, i) for (i = (m)->first; i != NULL; i = (i)->next)
7815	#define XML_NSMAP_POP(m, i) \
7816	i = (m)->last; \
7817	(m)->last = (i)->prev; \
7818	if ((m)->last == NULL) \
7819	(m)->first = NULL; \
7820	else \
7821	(m)->last->next = NULL; \
7822	(i)->next = (m)->pool; \
7823	(m)->pool = i;
7824
7825	/*
7826	* xmlDOMWrapNsMapFree:
7827	* @map: the ns-map
7828	*
7829	* Frees the ns-map
7830	*/
7831	static void
7832	xmlDOMWrapNsMapFree(xmlNsMapPtr nsmap)
7833	{
7834	xmlNsMapItemPtr cur, tmp;
7835
7836	if (nsmap == NULL)
7837	return;
7838	cur = nsmap->pool;
7839	while (cur != NULL) {
7840	tmp = cur;
7841	cur = cur->next;
7842	xmlFree(tmp);
7843	}
7844	cur = nsmap->first;
7845	while (cur != NULL) {
7846	tmp = cur;
7847	cur = cur->next;
7848	xmlFree(tmp);
7849	}
7850	xmlFree(nsmap);
7851	}
7852
7853	/*
7854	* xmlDOMWrapNsMapAddItem:
7855	* @map: the ns-map
7856	* @oldNs: the old ns-struct
7857	* @newNs: the new ns-struct
7858	* @depth: depth and ns-kind information
7859	*
7860	* Adds an ns-mapping item.
7861	*/
7862	static xmlNsMapItemPtr
7863	xmlDOMWrapNsMapAddItem(xmlNsMapPtr *nsmap, int position,
7864	xmlNsPtr oldNs, xmlNsPtr newNs, int depth)
7865	{
7866	xmlNsMapItemPtr ret;
7867	xmlNsMapPtr map;
7868
7869	if (nsmap == NULL)
7870	return(NULL);
7871	if ((position != -1) && (position != 0))
7872	return(NULL);
7873	map = *nsmap;
7874
7875	if (map == NULL) {
7876	/*
7877	* Create the ns-map.
7878	*/
7879	map = (xmlNsMapPtr) xmlMalloc(sizeof(struct xmlNsMap));
7880	if (map == NULL) {
7881	xmlTreeErrMemory("allocating namespace map");
7882	return (NULL);
7883	}
7884	memset(map, 0, sizeof(struct xmlNsMap));
7885	*nsmap = map;
7886	}
7887
7888	if (map->pool != NULL) {
7889	/*
7890	* Reuse an item from the pool.
7891	*/
7892	ret = map->pool;
7893	map->pool = ret->next;
7894	memset(ret, 0, sizeof(struct xmlNsMapItem));
7895	} else {
7896	/*
7897	* Create a new item.
7898	*/
7899	ret = (xmlNsMapItemPtr) xmlMalloc(sizeof(struct xmlNsMapItem));
7900	if (ret == NULL) {
7901	xmlTreeErrMemory("allocating namespace map item");
7902	return (NULL);
7903	}
7904	memset(ret, 0, sizeof(struct xmlNsMapItem));
7905	}
7906
7907	if (map->first == NULL) {
7908	/*
7909	* First ever.
7910	*/
7911	map->first = ret;
7912	map->last = ret;
7913	} else if (position == -1) {
7914	/*
7915	* Append.
7916	*/
7917	ret->prev = map->last;
7918	map->last->next = ret;
7919	map->last = ret;
7920	} else if (position == 0) {
7921	/*
7922	* Set on first position.
7923	*/
7924	map->first->prev = ret;
7925	ret->next = map->first;
7926	map->first = ret;
7927	}
7928
7929	ret->oldNs = oldNs;
7930	ret->newNs = newNs;
7931	ret->shadowDepth = -1;
7932	ret->depth = depth;
7933	return (ret);
7934	}
7935
7936	/*
7937	* xmlDOMWrapStoreNs:
7938	* @doc: the doc
7939	* @nsName: the namespace name
7940	* @prefix: the prefix
7941	*
7942	* Creates or reuses an xmlNs struct on doc->oldNs with
7943	* the given prefix and namespace name.
7944	*
7945	* Returns the aquired ns struct or NULL in case of an API
7946	* or internal error.
7947	*/
7948	static xmlNsPtr
7949	xmlDOMWrapStoreNs(xmlDocPtr doc,
7950	const xmlChar *nsName,
7951	const xmlChar *prefix)
7952	{
7953	xmlNsPtr ns;
7954
7955	if (doc == NULL)
7956	return (NULL);
7957	ns = xmlTreeEnsureXMLDecl(doc);
7958	if (ns == NULL)
7959	return (NULL);
7960	if (ns->next != NULL) {
7961	/* Reuse. */
7962	ns = ns->next;
7963	while (ns != NULL) {
7964	if (((ns->prefix == prefix) \|\|
7965	xmlStrEqual(ns->prefix, prefix)) &&
7966	xmlStrEqual(ns->href, nsName)) {
7967	return (ns);
7968	}
7969	if (ns->next == NULL)
7970	break;
7971	ns = ns->next;
7972	}
7973	}
7974	/* Create. */
7975	if (ns != NULL) {
7976	ns->next = xmlNewNs(NULL, nsName, prefix);
7977	return (ns->next);
7978	}
7979	return(NULL);
7980	}
7981
7982	/*
7983	* xmlDOMWrapNewCtxt:
7984	*
7985	* Allocates and initializes a new DOM-wrapper context.
7986	*
7987	* Returns the xmlDOMWrapCtxtPtr or NULL in case of an internal error.
7988	*/
7989	xmlDOMWrapCtxtPtr
7990	xmlDOMWrapNewCtxt(void)
7991	{
7992	xmlDOMWrapCtxtPtr ret;
7993
7994	ret = xmlMalloc(sizeof(xmlDOMWrapCtxt));
7995	if (ret == NULL) {
7996	xmlTreeErrMemory("allocating DOM-wrapper context");
7997	return (NULL);
7998	}
7999	memset(ret, 0, sizeof(xmlDOMWrapCtxt));
8000	return (ret);
8001	}
8002
8003	/*
8004	* xmlDOMWrapFreeCtxt:
8005	* @ctxt: the DOM-wrapper context
8006	*
8007	* Frees the DOM-wrapper context.
8008	*/
8009	void
8010	xmlDOMWrapFreeCtxt(xmlDOMWrapCtxtPtr ctxt)
8011	{
8012	if (ctxt == NULL)
8013	return;
8014	if (ctxt->namespaceMap != NULL)
8015	xmlDOMWrapNsMapFree((xmlNsMapPtr) ctxt->namespaceMap);
8016	/*
8017	* TODO: Store the namespace map in the context.
8018	*/
8019	xmlFree(ctxt);
8020	}
8021
8022	/*
8023	* xmlTreeLookupNsListByPrefix:
8024	* @nsList: a list of ns-structs
8025	* @prefix: the searched prefix
8026	*
8027	* Searches for a ns-decl with the given prefix in @nsList.
8028	*
8029	* Returns the ns-decl if found, NULL if not found and on
8030	* API errors.
8031	*/
8032	static xmlNsPtr
8033	xmlTreeNSListLookupByPrefix(xmlNsPtr nsList, const xmlChar *prefix)
8034	{
8035	if (nsList == NULL)
8036	return (NULL);
8037	{
8038	xmlNsPtr ns;
8039	ns = nsList;
8040	do {
8041	if ((prefix == ns->prefix) \|\|
8042	xmlStrEqual(prefix, ns->prefix)) {
8043	return (ns);
8044	}
8045	ns = ns->next;
8046	} while (ns != NULL);
8047	}
8048	return (NULL);
8049	}
8050
8051	/*
8052	*
8053	* xmlDOMWrapNSNormGatherInScopeNs:
8054	* @map: the namespace map
8055	* @node: the node to start with
8056	*
8057	* Puts in-scope namespaces into the ns-map.
8058	*
8059	* Returns 0 on success, -1 on API or internal errors.
8060	*/
8061	static int
8062	xmlDOMWrapNSNormGatherInScopeNs(xmlNsMapPtr *map,
8063	xmlNodePtr node)
8064	{
8065	xmlNodePtr cur;
8066	xmlNsPtr ns;
8067	xmlNsMapItemPtr mi;
8068	int shadowed;
8069
8070	if ((map == NULL) \|\| (*map != NULL))
8071	return (-1);
8072	if ((node == NULL) \|\| (node->type == XML_NAMESPACE_DECL))
8073	return (-1);
8074	/*
8075	* Get in-scope ns-decls of @parent.
8076	*/
8077	cur = node;
8078	while ((cur != NULL) && (cur != (xmlNodePtr) cur->doc)) {
8079	if (cur->type == XML_ELEMENT_NODE) {
8080	if (cur->nsDef != NULL) {
8081	ns = cur->nsDef;
8082	do {
8083	shadowed = 0;
8084	if (XML_NSMAP_NOTEMPTY(*map)) {
8085	/*
8086	* Skip shadowed prefixes.
8087	*/
8088	XML_NSMAP_FOREACH(*map, mi) {
8089	if ((ns->prefix == mi->newNs->prefix) \|\|
8090	xmlStrEqual(ns->prefix, mi->newNs->prefix)) {
8091	shadowed = 1;
8092	break;
8093	}
8094	}
8095	}
8096	/*
8097	* Insert mapping.
8098	*/
8099	mi = xmlDOMWrapNsMapAddItem(map, 0, NULL,
8100	ns, XML_TREE_NSMAP_PARENT);
8101	if (mi == NULL)
8102	return (-1);
8103	if (shadowed)
8104	mi->shadowDepth = 0;
8105	ns = ns->next;
8106	} while (ns != NULL);
8107	}
8108	}
8109	cur = cur->parent;
8110	}
8111	return (0);
8112	}
8113
8114	/*
8115	* XML_TREE_ADOPT_STR: If we have a dest-dict, put @str in the dict;
8116	* otherwise copy it, when it was in the source-dict.
8117	*/
8118	#define XML_TREE_ADOPT_STR(str) \
8119	if (adoptStr && (str != NULL)) { \
8120	if (destDoc->dict) { \
8121	const xmlChar *old = str; \
8122	str = xmlDictLookup(destDoc->dict, str, -1); \
8123	if ((sourceDoc == NULL) \|\| (sourceDoc->dict == NULL) \|\| \
8124	(!xmlDictOwns(sourceDoc->dict, old))) \
8125	xmlFree((char *)old); \
8126	} else if ((sourceDoc) && (sourceDoc->dict) && \
8127	xmlDictOwns(sourceDoc->dict, str)) { \
8128	str = BAD_CAST xmlStrdup(str); \
8129	} \
8130	}
8131
8132	/*
8133	* XML_TREE_ADOPT_STR_2: If @str was in the source-dict, then
8134	* put it in dest-dict or copy it.
8135	*/
8136	#define XML_TREE_ADOPT_STR_2(str) \
8137	if (adoptStr && (str != NULL) && (sourceDoc != NULL) && \
8138	(sourceDoc->dict != NULL) && \
8139	xmlDictOwns(sourceDoc->dict, cur->content)) { \
8140	if (destDoc->dict) \
8141	cur->content = (xmlChar *) \
8142	xmlDictLookup(destDoc->dict, cur->content, -1); \
8143	else \
8144	cur->content = xmlStrdup(BAD_CAST cur->content); \
8145	}
8146
8147	/*
8148	* xmlDOMWrapNSNormAddNsMapItem2:
8149	*
8150	* For internal use. Adds a ns-decl mapping.
8151	*
8152	* Returns 0 on success, -1 on internal errors.
8153	*/
8154	static int
8155	xmlDOMWrapNSNormAddNsMapItem2(xmlNsPtr *list, int size, int *number,
8156	xmlNsPtr oldNs, xmlNsPtr newNs)
8157	{
8158	if (*list == NULL) {
8159	list = (xmlNsPtr ) xmlMalloc(6 * sizeof(xmlNsPtr));
8160	if (*list == NULL) {
8161	xmlTreeErrMemory("alloc ns map item");
8162	return(-1);
8163	}
8164	*size = 3;
8165	*number = 0;
8166	} else if ((number) >= (size)) {
8167	size = 2;
8168	list = (xmlNsPtr ) xmlRealloc(*list,
8169	(size) 2 * sizeof(xmlNsPtr));
8170	if (*list == NULL) {
8171	xmlTreeErrMemory("realloc ns map item");
8172	return(-1);
8173	}
8174	}
8175	(list)[2 (*number)] = oldNs;
8176	(list)[2 (*number) +1] = newNs;
8177	(*number)++;
8178	return (0);
8179	}
8180
8181	/*
8182	* xmlDOMWrapRemoveNode:
8183	* @ctxt: a DOM wrapper context
8184	* @doc: the doc
8185	* @node: the node to be removed.
8186	* @options: set of options, unused at the moment
8187	*
8188	* Unlinks the given node from its owner.
8189	* This will substitute ns-references to node->nsDef for
8190	* ns-references to doc->oldNs, thus ensuring the removed
8191	* branch to be autark wrt ns-references.
8192	*
8193	* NOTE: This function was not intensively tested.
8194	*
8195	* Returns 0 on success, 1 if the node is not supported,
8196	* -1 on API and internal errors.
8197	*/
8198	int
8199	xmlDOMWrapRemoveNode(xmlDOMWrapCtxtPtr ctxt, xmlDocPtr doc,
8200	xmlNodePtr node, int options ATTRIBUTE_UNUSED)
8201	{
8202	xmlNsPtr *list = NULL;
8203	int sizeList, nbList, i, j;
8204	xmlNsPtr ns;
8205
8206	if ((node == NULL) \|\| (doc == NULL) \|\| (node->doc != doc))
8207	return (-1);
8208
8209	/* TODO: 0 or -1 ? */
8210	if (node->parent == NULL)
8211	return (0);
8212
8213	switch (node->type) {
8214	case XML_TEXT_NODE:
8215	case XML_CDATA_SECTION_NODE:
8216	case XML_ENTITY_REF_NODE:
8217	case XML_PI_NODE:
8218	case XML_COMMENT_NODE:
8219	xmlUnlinkNode(node);
8220	return (0);
8221	case XML_ELEMENT_NODE:
8222	case XML_ATTRIBUTE_NODE:
8223	break;
8224	default:
8225	return (1);
8226	}
8227	xmlUnlinkNode(node);
8228	/*
8229	* Save out-of-scope ns-references in doc->oldNs.
8230	*/
8231	do {
8232	switch (node->type) {
8233	case XML_ELEMENT_NODE:
8234	if ((ctxt == NULL) && (node->nsDef != NULL)) {
8235	ns = node->nsDef;
8236	do {
8237	if (xmlDOMWrapNSNormAddNsMapItem2(&list, &sizeList,
8238	&nbList, ns, ns) == -1)
8239	goto internal_error;
8240	ns = ns->next;
8241	} while (ns != NULL);
8242	}
8243	/* No break on purpose. */
8244	case XML_ATTRIBUTE_NODE:
8245	if (node->ns != NULL) {
8246	/*
8247	* Find a mapping.
8248	*/
8249	if (list != NULL) {
8250	for (i = 0, j = 0; i < nbList; i++, j += 2) {
8251	if (node->ns == list[j]) {
8252	node->ns = list[++j];
8253	goto next_node;
8254	}
8255	}
8256	}
8257	ns = NULL;
8258	if (ctxt != NULL) {
8259	/*
8260	* User defined.
8261	*/
8262	} else {
8263	/*
8264	* Add to doc's oldNs.
8265	*/
8266	ns = xmlDOMWrapStoreNs(doc, node->ns->href,
8267	node->ns->prefix);
8268	if (ns == NULL)
8269	goto internal_error;
8270	}
8271	if (ns != NULL) {
8272	/*
8273	* Add mapping.
8274	*/
8275	if (xmlDOMWrapNSNormAddNsMapItem2(&list, &sizeList,
8276	&nbList, node->ns, ns) == -1)
8277	goto internal_error;
8278	}
8279	node->ns = ns;
8280	}
8281	if ((node->type == XML_ELEMENT_NODE) &&
8282	(node->properties != NULL)) {
8283	node = (xmlNodePtr) node->properties;
8284	continue;
8285	}
8286	break;
8287	default:
8288	goto next_sibling;
8289	}
8290	next_node:
8291	if ((node->type == XML_ELEMENT_NODE) &&
8292	(node->children != NULL)) {
8293	node = node->children;
8294	continue;
8295	}
8296	next_sibling:
8297	if (node == NULL)
8298	break;
8299	if (node->next != NULL)
8300	node = node->next;
8301	else {
8302	node = node->parent;
8303	goto next_sibling;
8304	}
8305	} while (node != NULL);
8306
8307	if (list != NULL)
8308	xmlFree(list);
8309	return (0);
8310
8311	internal_error:
8312	if (list != NULL)
8313	xmlFree(list);
8314	return (-1);
8315	}
8316
8317	/*
8318	* xmlSearchNsByNamespaceStrict:
8319	* @doc: the document
8320	* @node: the start node
8321	* @nsName: the searched namespace name
8322	* @retNs: the resulting ns-decl
8323	* @prefixed: if the found ns-decl must have a prefix (for attributes)
8324	*
8325	* Dynamically searches for a ns-declaration which matches
8326	* the given @nsName in the ancestor-or-self axis of @node.
8327	*
8328	* Returns 1 if a ns-decl was found, 0 if not and -1 on API
8329	* and internal errors.
8330	*/
8331	static int
8332	xmlSearchNsByNamespaceStrict(xmlDocPtr doc, xmlNodePtr node,
8333	const xmlChar* nsName,
8334	xmlNsPtr *retNs, int prefixed)
8335	{
8336	xmlNodePtr cur, prev = NULL, out = NULL;
8337	xmlNsPtr ns, prevns;
8338
8339	if ((doc == NULL) \|\| (nsName == NULL) \|\| (retNs == NULL))
8340	return (-1);
8341	if ((node == NULL) \|\| (node->type == XML_NAMESPACE_DECL))
8342	return(-1);
8343
8344	*retNs = NULL;
8345	if (xmlStrEqual(nsName, XML_XML_NAMESPACE)) {
8346	*retNs = xmlTreeEnsureXMLDecl(doc);
8347	if (*retNs == NULL)
8348	return (-1);
8349	return (1);
8350	}
8351	cur = node;
8352	do {
8353	if (cur->type == XML_ELEMENT_NODE) {
8354	if (cur->nsDef != NULL) {
8355	for (ns = cur->nsDef; ns != NULL; ns = ns->next) {
8356	if (prefixed && (ns->prefix == NULL))
8357	continue;
8358	if (prev != NULL) {
8359	/*
8360	* Check the last level of ns-decls for a
8361	* shadowing prefix.
8362	*/
8363	prevns = prev->nsDef;
8364	do {
8365	if ((prevns->prefix == ns->prefix) \|\|
8366	((prevns->prefix != NULL) &&
8367	(ns->prefix != NULL) &&
8368	xmlStrEqual(prevns->prefix, ns->prefix))) {
8369	/*
8370	* Shadowed.
8371	*/
8372	break;
8373	}
8374	prevns = prevns->next;
8375	} while (prevns != NULL);
8376	if (prevns != NULL)
8377	continue;
8378	}
8379	/*
8380	* Ns-name comparison.
8381	*/
8382	if ((nsName == ns->href) \|\|
8383	xmlStrEqual(nsName, ns->href)) {
8384	/*
8385	* At this point the prefix can only be shadowed,
8386	* if we are the the (at least) 3rd level of
8387	* ns-decls.
8388	*/
8389	if (out) {
8390	int ret;
8391
8392	ret = xmlNsInScope(doc, node, prev, ns->prefix);
8393	if (ret < 0)
8394	return (-1);
8395	/*
8396	* TODO: Should we try to find a matching ns-name
8397	* only once? This here keeps on searching.
8398	* I think we should try further since, there might
8399	* be an other matching ns-decl with an unshadowed
8400	* prefix.
8401	*/
8402	if (! ret)
8403	continue;
8404	}
8405	*retNs = ns;
8406	return (1);
8407	}
8408	}
8409	out = prev;
8410	prev = cur;
8411	}
8412	} else if ((cur->type == XML_ENTITY_NODE) \|\|
8413	(cur->type == XML_ENTITY_DECL))
8414	return (0);
8415	cur = cur->parent;
8416	} while ((cur != NULL) && (cur->doc != (xmlDocPtr) cur));
8417	return (0);
8418	}
8419
8420	/*
8421	* xmlSearchNsByPrefixStrict:
8422	* @doc: the document
8423	* @node: the start node
8424	* @prefix: the searched namespace prefix
8425	* @retNs: the resulting ns-decl
8426	*
8427	* Dynamically searches for a ns-declaration which matches
8428	* the given @nsName in the ancestor-or-self axis of @node.
8429	*
8430	* Returns 1 if a ns-decl was found, 0 if not and -1 on API
8431	* and internal errors.
8432	*/
8433	static int
8434	xmlSearchNsByPrefixStrict(xmlDocPtr doc, xmlNodePtr node,
8435	const xmlChar* prefix,
8436	xmlNsPtr *retNs)
8437	{
8438	xmlNodePtr cur;
8439	xmlNsPtr ns;
8440
8441	if ((doc == NULL) \|\| (node == NULL) \|\| (node->type == XML_NAMESPACE_DECL))
8442	return(-1);
8443
8444	if (retNs)
8445	*retNs = NULL;
8446	if (IS_STR_XML(prefix)) {
8447	if (retNs) {
8448	*retNs = xmlTreeEnsureXMLDecl(doc);
8449	if (*retNs == NULL)
8450	return (-1);
8451	}
8452	return (1);
8453	}
8454	cur = node;
8455	do {
8456	if (cur->type == XML_ELEMENT_NODE) {
8457	if (cur->nsDef != NULL) {
8458	ns = cur->nsDef;
8459	do {
8460	if ((prefix == ns->prefix) \|\|
8461	xmlStrEqual(prefix, ns->prefix))
8462	{
8463	/*
8464	* Disabled namespaces, e.g. xmlns:abc="".
8465	*/
8466	if (ns->href == NULL)
8467	return(0);
8468	if (retNs)
8469	*retNs = ns;
8470	return (1);
8471	}
8472	ns = ns->next;
8473	} while (ns != NULL);
8474	}
8475	} else if ((cur->type == XML_ENTITY_NODE) \|\|
8476	(cur->type == XML_ENTITY_DECL))
8477	return (0);
8478	cur = cur->parent;
8479	} while ((cur != NULL) && (cur->doc != (xmlDocPtr) cur));
8480	return (0);
8481	}
8482
8483	/*
8484	* xmlDOMWrapNSNormDeclareNsForced:
8485	* @doc: the doc
8486	* @elem: the element-node to declare on
8487	* @nsName: the namespace-name of the ns-decl
8488	* @prefix: the preferred prefix of the ns-decl
8489	* @checkShadow: ensure that the new ns-decl doesn't shadow ancestor ns-decls
8490	*
8491	* Declares a new namespace on @elem. It tries to use the
8492	* given @prefix; if a ns-decl with the given prefix is already existent
8493	* on @elem, it will generate an other prefix.
8494	*
8495	* Returns 1 if a ns-decl was found, 0 if not and -1 on API
8496	* and internal errors.
8497	*/
8498	static xmlNsPtr
8499	xmlDOMWrapNSNormDeclareNsForced(xmlDocPtr doc,
8500	xmlNodePtr elem,
8501	const xmlChar *nsName,
8502	const xmlChar *prefix,
8503	int checkShadow)
8504	{
8505
8506	xmlNsPtr ret;
8507	char buf[50];
8508	const xmlChar *pref;
8509	int counter = 0;
8510
8511	if ((doc == NULL) \|\| (elem == NULL) \|\| (elem->type != XML_ELEMENT_NODE))
8512	return(NULL);
8513	/*
8514	* Create a ns-decl on @anchor.
8515	*/
8516	pref = prefix;
8517	while (1) {
8518	/*
8519	* Lookup whether the prefix is unused in elem's ns-decls.
8520	*/
8521	if ((elem->nsDef != NULL) &&
8522	(xmlTreeNSListLookupByPrefix(elem->nsDef, pref) != NULL))
8523	goto ns_next_prefix;
8524	if (checkShadow && elem->parent &&
8525	((xmlNodePtr) elem->parent->doc != elem->parent)) {
8526	/*
8527	* Does it shadow ancestor ns-decls?
8528	*/
8529	if (xmlSearchNsByPrefixStrict(doc, elem->parent, pref, NULL) == 1)
8530	goto ns_next_prefix;
8531	}
8532	ret = xmlNewNs(NULL, nsName, pref);
8533	if (ret == NULL)
8534	return (NULL);
8535	if (elem->nsDef == NULL)
8536	elem->nsDef = ret;
8537	else {
8538	xmlNsPtr ns2 = elem->nsDef;
8539	while (ns2->next != NULL)
8540	ns2 = ns2->next;
8541	ns2->next = ret;
8542	}
8543	return (ret);
8544	ns_next_prefix:
8545	counter++;
8546	if (counter > 1000)
8547	return (NULL);
8548	if (prefix == NULL) {
8549	snprintf((char *) buf, sizeof(buf),
8550	"ns_%d", counter);
8551	} else
8552	snprintf((char *) buf, sizeof(buf),
8553	"%.30s_%d", (char *)prefix, counter);
8554	pref = BAD_CAST buf;
8555	}
8556	}
8557
8558	/*
8559	* xmlDOMWrapNSNormAquireNormalizedNs:
8560	* @doc: the doc
8561	* @elem: the element-node to declare namespaces on
8562	* @ns: the ns-struct to use for the search
8563	* @retNs: the found/created ns-struct
8564	* @nsMap: the ns-map
8565	* @depth: the current tree depth
8566	* @ancestorsOnly: search in ancestor ns-decls only
8567	* @prefixed: if the searched ns-decl must have a prefix (for attributes)
8568	*
8569	* Searches for a matching ns-name in the ns-decls of @nsMap, if not
8570	* found it will either declare it on @elem, or store it in doc->oldNs.
8571	* If a new ns-decl needs to be declared on @elem, it tries to use the
8572	* @ns->prefix for it, if this prefix is already in use on @elem, it will
8573	* change the prefix or the new ns-decl.
8574	*
8575	* Returns 0 if succeeded, -1 otherwise and on API/internal errors.
8576	*/
8577	static int
8578	xmlDOMWrapNSNormAquireNormalizedNs(xmlDocPtr doc,
8579	xmlNodePtr elem,
8580	xmlNsPtr ns,
8581	xmlNsPtr *retNs,
8582	xmlNsMapPtr *nsMap,
8583
8584	int depth,
8585	int ancestorsOnly,
8586	int prefixed)
8587	{
8588	xmlNsMapItemPtr mi;
8589
8590	if ((doc == NULL) \|\| (ns == NULL) \|\| (retNs == NULL) \|\|
8591	(nsMap == NULL))
8592	return (-1);
8593
8594	*retNs = NULL;
8595	/*
8596	* Handle XML namespace.
8597	*/
8598	if (IS_STR_XML(ns->prefix)) {
8599	/*
8600	* Insert XML namespace mapping.
8601	*/
8602	*retNs = xmlTreeEnsureXMLDecl(doc);
8603	if (*retNs == NULL)
8604	return (-1);
8605	return (0);
8606	}
8607	/*
8608	* If the search should be done in ancestors only and no
8609	* @elem (the first ancestor) was specified, then skip the search.
8610	*/
8611	if ((XML_NSMAP_NOTEMPTY(*nsMap)) &&
8612	(! (ancestorsOnly && (elem == NULL))))
8613	{
8614	/*
8615	* Try to find an equal ns-name in in-scope ns-decls.
8616	*/
8617	XML_NSMAP_FOREACH(*nsMap, mi) {
8618	if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
8619	/*
8620	* ancestorsOnly: This should be turned on to gain speed,
8621	* if one knows that the branch itself was already
8622	* ns-wellformed and no stale references existed.
8623	* I.e. it searches in the ancestor axis only.
8624	*/
8625	((! ancestorsOnly) \|\| (mi->depth == XML_TREE_NSMAP_PARENT)) &&
8626	/* Skip shadowed prefixes. */
8627	(mi->shadowDepth == -1) &&
8628	/* Skip xmlns="" or xmlns:foo="". */
8629	((mi->newNs->href != NULL) &&
8630	(mi->newNs->href[0] != 0)) &&
8631	/* Ensure a prefix if wanted. */
8632	((! prefixed) \|\| (mi->newNs->prefix != NULL)) &&
8633	/* Equal ns name */
8634	((mi->newNs->href == ns->href) \|\|
8635	xmlStrEqual(mi->newNs->href, ns->href))) {
8636	/* Set the mapping. */
8637	mi->oldNs = ns;
8638	*retNs = mi->newNs;
8639	return (0);
8640	}
8641	}
8642	}
8643	/*
8644	* No luck, the namespace is out of scope or shadowed.
8645	*/
8646	if (elem == NULL) {
8647	xmlNsPtr tmpns;
8648
8649	/*
8650	* Store ns-decls in "oldNs" of the document-node.
8651	*/
8652	tmpns = xmlDOMWrapStoreNs(doc, ns->href, ns->prefix);
8653	if (tmpns == NULL)
8654	return (-1);
8655	/*
8656	* Insert mapping.
8657	*/
8658	if (xmlDOMWrapNsMapAddItem(nsMap, -1, ns,
8659	tmpns, XML_TREE_NSMAP_DOC) == NULL) {
8660	xmlFreeNs(tmpns);
8661	return (-1);
8662	}
8663	*retNs = tmpns;
8664	} else {
8665	xmlNsPtr tmpns;
8666
8667	tmpns = xmlDOMWrapNSNormDeclareNsForced(doc, elem, ns->href,
8668	ns->prefix, 0);
8669	if (tmpns == NULL)
8670	return (-1);
8671
8672	if (*nsMap != NULL) {
8673	/*
8674	* Does it shadow ancestor ns-decls?
8675	*/
8676	XML_NSMAP_FOREACH(*nsMap, mi) {
8677	if ((mi->depth < depth) &&
8678	(mi->shadowDepth == -1) &&
8679	((ns->prefix == mi->newNs->prefix) \|\|
8680	xmlStrEqual(ns->prefix, mi->newNs->prefix))) {
8681	/*
8682	* Shadows.
8683	*/
8684	mi->shadowDepth = depth;
8685	break;
8686	}
8687	}
8688	}
8689	if (xmlDOMWrapNsMapAddItem(nsMap, -1, ns, tmpns, depth) == NULL) {
8690	xmlFreeNs(tmpns);
8691	return (-1);
8692	}
8693	*retNs = tmpns;
8694	}
8695	return (0);
8696	}
8697
8698	typedef enum {
8699	XML_DOM_RECONNS_REMOVEREDUND = 1<<0
8700	} xmlDOMReconcileNSOptions;
8701
8702	/*
8703	* xmlDOMWrapReconcileNamespaces:
8704	* @ctxt: DOM wrapper context, unused at the moment
8705	* @elem: the element-node
8706	* @options: option flags
8707	*
8708	* Ensures that ns-references point to ns-decls hold on element-nodes.
8709	* Ensures that the tree is namespace wellformed by creating additional
8710	* ns-decls where needed. Note that, since prefixes of already existent
8711	* ns-decls can be shadowed by this process, it could break QNames in
8712	* attribute values or element content.
8713	*
8714	* NOTE: This function was not intensively tested.
8715	*
8716	* Returns 0 if succeeded, -1 otherwise and on API/internal errors.
8717	*/
8718
8719	int
8720	xmlDOMWrapReconcileNamespaces(xmlDOMWrapCtxtPtr ctxt ATTRIBUTE_UNUSED,
8721	xmlNodePtr elem,
8722	int options)
8723	{
8724	int depth = -1, adoptns = 0, parnsdone = 0;
8725	xmlNsPtr ns, prevns;
8726	xmlDocPtr doc;
8727	xmlNodePtr cur, curElem = NULL;
8728	xmlNsMapPtr nsMap = NULL;
8729	xmlNsMapItemPtr /* topmi = NULL, */ mi;
8730	/* @ancestorsOnly should be set by an option flag. */
8731	int ancestorsOnly = 0;
8732	int optRemoveRedundantNS =
8733	((xmlDOMReconcileNSOptions) options & XML_DOM_RECONNS_REMOVEREDUND) ? 1 : 0;
8734	xmlNsPtr *listRedund = NULL;
8735	int sizeRedund = 0, nbRedund = 0, ret, i, j;
8736
8737	if ((elem == NULL) \|\| (elem->doc == NULL) \|\|
8738	(elem->type != XML_ELEMENT_NODE))
8739	return (-1);
8740
8741	doc = elem->doc;
8742	cur = elem;
8743	do {
8744	switch (cur->type) {
8745	case XML_ELEMENT_NODE:
8746	adoptns = 1;
8747	curElem = cur;
8748	depth++;
8749	/*
8750	* Namespace declarations.
8751	*/
8752	if (cur->nsDef != NULL) {
8753	prevns = NULL;
8754	ns = cur->nsDef;
8755	while (ns != NULL) {
8756	if (! parnsdone) {
8757	if ((elem->parent) &&
8758	((xmlNodePtr) elem->parent->doc != elem->parent)) {
8759	/*
8760	* Gather ancestor in-scope ns-decls.
8761	*/
8762	if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
8763	elem->parent) == -1)
8764	goto internal_error;
8765	}
8766	parnsdone = 1;
8767	}
8768
8769	/*
8770	* Lookup the ns ancestor-axis for equal ns-decls in scope.
8771	*/
8772	if (optRemoveRedundantNS && XML_NSMAP_NOTEMPTY(nsMap)) {
8773	XML_NSMAP_FOREACH(nsMap, mi) {
8774	if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
8775	(mi->shadowDepth == -1) &&
8776	((ns->prefix == mi->newNs->prefix) \|\|
8777	xmlStrEqual(ns->prefix, mi->newNs->prefix)) &&
8778	((ns->href == mi->newNs->href) \|\|
8779	xmlStrEqual(ns->href, mi->newNs->href)))
8780	{
8781	/*
8782	* A redundant ns-decl was found.
8783	* Add it to the list of redundant ns-decls.
8784	*/
8785	if (xmlDOMWrapNSNormAddNsMapItem2(&listRedund,
8786	&sizeRedund, &nbRedund, ns, mi->newNs) == -1)
8787	goto internal_error;
8788	/*
8789	* Remove the ns-decl from the element-node.
8790	*/
8791	if (prevns)
8792	prevns->next = ns->next;
8793	else
8794	cur->nsDef = ns->next;
8795	goto next_ns_decl;
8796	}
8797	}
8798	}
8799
8800	/*
8801	* Skip ns-references handling if the referenced
8802	* ns-decl is declared on the same element.
8803	*/
8804	if ((cur->ns != NULL) && adoptns && (cur->ns == ns))
8805	adoptns = 0;
8806	/*
8807	* Does it shadow any ns-decl?
8808	*/
8809	if (XML_NSMAP_NOTEMPTY(nsMap)) {
8810	XML_NSMAP_FOREACH(nsMap, mi) {
8811	if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
8812	(mi->shadowDepth == -1) &&
8813	((ns->prefix == mi->newNs->prefix) \|\|
8814	xmlStrEqual(ns->prefix, mi->newNs->prefix))) {
8815
8816	mi->shadowDepth = depth;
8817	}
8818	}
8819	}
8820	/*
8821	* Push mapping.
8822	*/
8823	if (xmlDOMWrapNsMapAddItem(&nsMap, -1, ns, ns,
8824	depth) == NULL)
8825	goto internal_error;
8826
8827	prevns = ns;
8828	next_ns_decl:
8829	ns = ns->next;
8830	}
8831	}
8832	if (! adoptns)
8833	goto ns_end;
8834	/* No break on purpose. */
8835	case XML_ATTRIBUTE_NODE:
8836	/* No ns, no fun. */
8837	if (cur->ns == NULL)
8838	goto ns_end;
8839
8840	if (! parnsdone) {
8841	if ((elem->parent) &&
8842	((xmlNodePtr) elem->parent->doc != elem->parent)) {
8843	if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
8844	elem->parent) == -1)
8845	goto internal_error;
8846	}
8847	parnsdone = 1;
8848	}
8849	/*
8850	* Adjust the reference if this was a redundant ns-decl.
8851	*/
8852	if (listRedund) {
8853	for (i = 0, j = 0; i < nbRedund; i++, j += 2) {
8854	if (cur->ns == listRedund[j]) {
8855	cur->ns = listRedund[++j];
8856	break;
8857	}
8858	}
8859	}
8860	/*
8861	* Adopt ns-references.
8862	*/
8863	if (XML_NSMAP_NOTEMPTY(nsMap)) {
8864	/*
8865	* Search for a mapping.
8866	*/
8867	XML_NSMAP_FOREACH(nsMap, mi) {
8868	if ((mi->shadowDepth == -1) &&
8869	(cur->ns == mi->oldNs)) {
8870
8871	cur->ns = mi->newNs;
8872	goto ns_end;
8873	}
8874	}
8875	}
8876	/*
8877	* Aquire a normalized ns-decl and add it to the map.
8878	*/
8879	if (xmlDOMWrapNSNormAquireNormalizedNs(doc, curElem,
8880	cur->ns, &ns,
8881	&nsMap, depth,
8882	ancestorsOnly,
8883	(cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)
8884	goto internal_error;
8885	cur->ns = ns;
8886
8887	ns_end:
8888	if ((cur->type == XML_ELEMENT_NODE) &&
8889	(cur->properties != NULL)) {
8890	/*
8891	* Process attributes.
8892	*/
8893	cur = (xmlNodePtr) cur->properties;
8894	continue;
8895	}
8896	break;
8897	default:
8898	goto next_sibling;
8899	}
8900	into_content:
8901	if ((cur->type == XML_ELEMENT_NODE) &&
8902	(cur->children != NULL)) {
8903	/*
8904	* Process content of element-nodes only.
8905	*/
8906	cur = cur->children;
8907	continue;
8908	}
8909	next_sibling:
8910	if (cur == elem)
8911	break;
8912	if (cur->type == XML_ELEMENT_NODE) {
8913	if (XML_NSMAP_NOTEMPTY(nsMap)) {
8914	/*
8915	* Pop mappings.
8916	*/
8917	while ((nsMap->last != NULL) &&
8918	(nsMap->last->depth >= depth))
8919	{
8920	XML_NSMAP_POP(nsMap, mi)
8921	}
8922	/*
8923	* Unshadow.
8924	*/
8925	XML_NSMAP_FOREACH(nsMap, mi) {
8926	if (mi->shadowDepth >= depth)
8927	mi->shadowDepth = -1;
8928	}
8929	}
8930	depth--;
8931	}
8932	if (cur->next != NULL)
8933	cur = cur->next;
8934	else {
8935	if (cur->type == XML_ATTRIBUTE_NODE) {
8936	cur = cur->parent;
8937	goto into_content;
8938	}
8939	cur = cur->parent;
8940	goto next_sibling;
8941	}
8942	} while (cur != NULL);
8943
8944	ret = 0;
8945	goto exit;
8946	internal_error:
8947	ret = -1;
8948	exit:
8949	if (listRedund) {
8950	for (i = 0, j = 0; i < nbRedund; i++, j += 2) {
8951	xmlFreeNs(listRedund[j]);
8952	}
8953	xmlFree(listRedund);
8954	}
8955	if (nsMap != NULL)
8956	xmlDOMWrapNsMapFree(nsMap);
8957	return (ret);
8958	}
8959
8960	/*
8961	* xmlDOMWrapAdoptBranch:
8962	* @ctxt: the optional context for custom processing
8963	* @sourceDoc: the optional sourceDoc
8964	* @node: the element-node to start with
8965	* @destDoc: the destination doc for adoption
8966	* @destParent: the optional new parent of @node in @destDoc
8967	* @options: option flags
8968	*
8969	* Ensures that ns-references point to @destDoc: either to
8970	* elements->nsDef entries if @destParent is given, or to
8971	* @destDoc->oldNs otherwise.
8972	* If @destParent is given, it ensures that the tree is namespace
8973	* wellformed by creating additional ns-decls where needed.
8974	* Note that, since prefixes of already existent ns-decls can be
8975	* shadowed by this process, it could break QNames in attribute
8976	* values or element content.
8977	*
8978	* NOTE: This function was not intensively tested.
8979	*
8980	* Returns 0 if succeeded, -1 otherwise and on API/internal errors.
8981	*/
8982	static int
8983	xmlDOMWrapAdoptBranch(xmlDOMWrapCtxtPtr ctxt,
8984	xmlDocPtr sourceDoc,
8985	xmlNodePtr node,
8986	xmlDocPtr destDoc,
8987	xmlNodePtr destParent,
8988	int options ATTRIBUTE_UNUSED)
8989	{
8990	int ret = 0;
8991	xmlNodePtr cur, curElem = NULL;
8992	xmlNsMapPtr nsMap = NULL;
8993	xmlNsMapItemPtr mi;
8994	xmlNsPtr ns = NULL;
8995	int depth = -1, adoptStr = 1;
8996	/* gather @parent's ns-decls. */
8997	int parnsdone;
8998	/* @ancestorsOnly should be set per option. */
8999	int ancestorsOnly = 0;
9000
9001	/*
9002	* Optimize string adoption for equal or none dicts.
9003	*/
9004	if ((sourceDoc != NULL) &&
9005	(sourceDoc->dict == destDoc->dict))
9006	adoptStr = 0;
9007	else
9008	adoptStr = 1;
9009
9010	/*
9011	* Get the ns-map from the context if available.
9012	*/
9013	if (ctxt)
9014	nsMap = (xmlNsMapPtr) ctxt->namespaceMap;
9015	/*
9016	* Disable search for ns-decls in the parent-axis of the
9017	* desination element, if:
9018	* 1) there's no destination parent
9019	* 2) custom ns-reference handling is used
9020	*/
9021	if ((destParent == NULL) \|\|
9022	(ctxt && ctxt->getNsForNodeFunc))
9023	{
9024	parnsdone = 1;
9025	} else
9026	parnsdone = 0;
9027
9028	cur = node;
9029	if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
9030	goto internal_error;
9031
9032	while (cur != NULL) {
9033	/*
9034	* Paranoid source-doc sanity check.
9035	*/
9036	if (cur->doc != sourceDoc) {
9037	/*
9038	* We'll assume XIncluded nodes if the doc differs.
9039	* TODO: Do we need to reconciliate XIncluded nodes?
9040	* This here skips XIncluded nodes and tries to handle
9041	* broken sequences.
9042	*/
9043	if (cur->next == NULL)
9044	goto leave_node;
9045	do {
9046	cur = cur->next;
9047	if ((cur->type == XML_XINCLUDE_END) \|\|
9048	(cur->doc == node->doc))
9049	break;
9050	} while (cur->next != NULL);
9051
9052	if (cur->doc != node->doc)
9053	goto leave_node;
9054	}
9055	cur->doc = destDoc;
9056	switch (cur->type) {
9057	case XML_XINCLUDE_START:
9058	case XML_XINCLUDE_END:
9059	/*
9060	* TODO
9061	*/
9062	return (-1);
9063	case XML_ELEMENT_NODE:
9064	curElem = cur;
9065	depth++;
9066	/*
9067	* Namespace declarations.
9068	* - ns->href and ns->prefix are never in the dict, so
9069	* we need not move the values over to the destination dict.
9070	* - Note that for custom handling of ns-references,
9071	* the ns-decls need not be stored in the ns-map,
9072	* since they won't be referenced by node->ns.
9073	*/
9074	if ((cur->nsDef) &&
9075	((ctxt == NULL) \|\| (ctxt->getNsForNodeFunc == NULL)))
9076	{
9077	if (! parnsdone) {
9078	/*
9079	* Gather @parent's in-scope ns-decls.
9080	*/
9081	if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
9082	destParent) == -1)
9083	goto internal_error;
9084	parnsdone = 1;
9085	}
9086	for (ns = cur->nsDef; ns != NULL; ns = ns->next) {
9087	/*
9088	* NOTE: ns->prefix and ns->href are never in the dict.
9089	* XML_TREE_ADOPT_STR(ns->prefix)
9090	* XML_TREE_ADOPT_STR(ns->href)
9091	*/
9092	/*
9093	* Does it shadow any ns-decl?
9094	*/
9095	if (XML_NSMAP_NOTEMPTY(nsMap)) {
9096	XML_NSMAP_FOREACH(nsMap, mi) {
9097	if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
9098	(mi->shadowDepth == -1) &&
9099	((ns->prefix == mi->newNs->prefix) \|\|
9100	xmlStrEqual(ns->prefix,
9101	mi->newNs->prefix))) {
9102
9103	mi->shadowDepth = depth;
9104	}
9105	}
9106	}
9107	/*
9108	* Push mapping.
9109	*/
9110	if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9111	ns, ns, depth) == NULL)
9112	goto internal_error;
9113	}
9114	}
9115	/* No break on purpose. */
9116	case XML_ATTRIBUTE_NODE:
9117	/* No namespace, no fun. */
9118	if (cur->ns == NULL)
9119	goto ns_end;
9120
9121	if (! parnsdone) {
9122	if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
9123	destParent) == -1)
9124	goto internal_error;
9125	parnsdone = 1;
9126	}
9127	/*
9128	* Adopt ns-references.
9129	*/
9130	if (XML_NSMAP_NOTEMPTY(nsMap)) {
9131	/*
9132	* Search for a mapping.
9133	*/
9134	XML_NSMAP_FOREACH(nsMap, mi) {
9135	if ((mi->shadowDepth == -1) &&
9136	(cur->ns == mi->oldNs)) {
9137
9138	cur->ns = mi->newNs;
9139	goto ns_end;
9140	}
9141	}
9142	}
9143	/*
9144	* No matching namespace in scope. We need a new one.
9145	*/
9146	if ((ctxt) && (ctxt->getNsForNodeFunc)) {
9147	/*
9148	* User-defined behaviour.
9149	*/
9150	ns = ctxt->getNsForNodeFunc(ctxt, cur,
9151	cur->ns->href, cur->ns->prefix);
9152	/*
9153	* Insert mapping if ns is available; it's the users fault
9154	* if not.
9155	*/
9156	if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9157	cur->ns, ns, XML_TREE_NSMAP_CUSTOM) == NULL)
9158	goto internal_error;
9159	cur->ns = ns;
9160	} else {
9161	/*
9162	* Aquire a normalized ns-decl and add it to the map.
9163	*/
9164	if (xmlDOMWrapNSNormAquireNormalizedNs(destDoc,
9165	/* ns-decls on curElem or on destDoc->oldNs */
9166	destParent ? curElem : NULL,
9167	cur->ns, &ns,
9168	&nsMap, depth,
9169	ancestorsOnly,
9170	/* ns-decls must be prefixed for attributes. */
9171	(cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)
9172	goto internal_error;
9173	cur->ns = ns;
9174	}
9175	ns_end:
9176	/*
9177	* Further node properties.
9178	* TODO: Is this all?
9179	*/
9180	XML_TREE_ADOPT_STR(cur->name)
9181	if (cur->type == XML_ELEMENT_NODE) {
9182	cur->psvi = NULL;
9183	cur->line = 0;
9184	cur->extra = 0;
9185	/*
9186	* Walk attributes.
9187	*/
9188	if (cur->properties != NULL) {
9189	/*
9190	* Process first attribute node.
9191	*/
9192	cur = (xmlNodePtr) cur->properties;
9193	continue;
9194	}
9195	} else {
9196	/*
9197	* Attributes.
9198	*/
9199	if ((sourceDoc != NULL) &&
9200	(((xmlAttrPtr) cur)->atype == XML_ATTRIBUTE_ID))
9201	{
9202	xmlRemoveID(sourceDoc, (xmlAttrPtr) cur);
9203	}
9204	((xmlAttrPtr) cur)->atype = 0;
9205	((xmlAttrPtr) cur)->psvi = NULL;
9206	}
9207	break;
9208	case XML_TEXT_NODE:
9209	case XML_CDATA_SECTION_NODE:
9210	/*
9211	* This puts the content in the dest dict, only if
9212	* it was previously in the source dict.
9213	*/
9214	XML_TREE_ADOPT_STR_2(cur->content)
9215	goto leave_node;
9216	case XML_ENTITY_REF_NODE:
9217	/*
9218	* Remove reference to the entitity-node.
9219	*/
9220	cur->content = NULL;
9221	cur->children = NULL;
9222	cur->last = NULL;
9223	if ((destDoc->intSubset) \|\| (destDoc->extSubset)) {
9224	xmlEntityPtr ent;
9225	/*
9226	* Assign new entity-node if available.
9227	*/
9228	ent = xmlGetDocEntity(destDoc, cur->name);
9229	if (ent != NULL) {
9230	cur->content = ent->content;
9231	cur->children = (xmlNodePtr) ent;
9232	cur->last = (xmlNodePtr) ent;
9233	}
9234	}
9235	goto leave_node;
9236	case XML_PI_NODE:
9237	XML_TREE_ADOPT_STR(cur->name)
9238	XML_TREE_ADOPT_STR_2(cur->content)
9239	break;
9240	case XML_COMMENT_NODE:
9241	break;
9242	default:
9243	goto internal_error;
9244	}
9245	/*
9246	* Walk the tree.
9247	*/
9248	if (cur->children != NULL) {
9249	cur = cur->children;
9250	continue;
9251	}
9252
9253	leave_node:
9254	if (cur == node)
9255	break;
9256	if ((cur->type == XML_ELEMENT_NODE) \|\|
9257	(cur->type == XML_XINCLUDE_START) \|\|
9258	(cur->type == XML_XINCLUDE_END))
9259	{
9260	/*
9261	* TODO: Do we expect nsDefs on XML_XINCLUDE_START?
9262	*/
9263	if (XML_NSMAP_NOTEMPTY(nsMap)) {
9264	/*
9265	* Pop mappings.
9266	*/
9267	while ((nsMap->last != NULL) &&
9268	(nsMap->last->depth >= depth))
9269	{
9270	XML_NSMAP_POP(nsMap, mi)
9271	}
9272	/*
9273	* Unshadow.
9274	*/
9275	XML_NSMAP_FOREACH(nsMap, mi) {
9276	if (mi->shadowDepth >= depth)
9277	mi->shadowDepth = -1;
9278	}
9279	}
9280	depth--;
9281	}
9282	if (cur->next != NULL)
9283	cur = cur->next;
9284	else if ((cur->type == XML_ATTRIBUTE_NODE) &&
9285	(cur->parent->children != NULL))
9286	{
9287	cur = cur->parent->children;
9288	} else {
9289	cur = cur->parent;
9290	goto leave_node;
9291	}
9292	}
9293
9294	goto exit;
9295
9296	internal_error:
9297	ret = -1;
9298
9299	exit:
9300	/*
9301	* Cleanup.
9302	*/
9303	if (nsMap != NULL) {
9304	if ((ctxt) && (ctxt->namespaceMap == nsMap)) {
9305	/*
9306	* Just cleanup the map but don't free.
9307	*/
9308	if (nsMap->first) {
9309	if (nsMap->pool)
9310	nsMap->last->next = nsMap->pool;
9311	nsMap->pool = nsMap->first;
9312	nsMap->first = NULL;
9313	}
9314	} else
9315	xmlDOMWrapNsMapFree(nsMap);
9316	}
9317	return(ret);
9318	}
9319
9320	/*
9321	* xmlDOMWrapCloneNode:
9322	* @ctxt: the optional context for custom processing
9323	* @sourceDoc: the optional sourceDoc
9324	* @node: the node to start with
9325	* @resNode: the clone of the given @node
9326	* @destDoc: the destination doc
9327	* @destParent: the optional new parent of @node in @destDoc
9328	* @deep: descend into child if set
9329	* @options: option flags
9330	*
9331	* References of out-of scope ns-decls are remapped to point to @destDoc:
9332	* 1) If @destParent is given, then nsDef entries on element-nodes are used
9333	* 2) If no @destParent is given, then @destDoc->oldNs entries are used.
9334	* This is the case when you don't know already where the cloned branch
9335	* will be added to.
9336	*
9337	* If @destParent is given, it ensures that the tree is namespace
9338	* wellformed by creating additional ns-decls where needed.
9339	* Note that, since prefixes of already existent ns-decls can be
9340	* shadowed by this process, it could break QNames in attribute
9341	* values or element content.
9342	* TODO:
9343	* 1) What to do with XInclude? Currently this returns an error for XInclude.
9344	*
9345	* Returns 0 if the operation succeeded,
9346	* 1 if a node of unsupported (or not yet supported) type was given,
9347	* -1 on API/internal errors.
9348	*/
9349
9350	int
9351	xmlDOMWrapCloneNode(xmlDOMWrapCtxtPtr ctxt,
9352	xmlDocPtr sourceDoc,
9353	xmlNodePtr node,
9354	xmlNodePtr *resNode,
9355	xmlDocPtr destDoc,
9356	xmlNodePtr destParent,
9357	int deep,
9358	int options ATTRIBUTE_UNUSED)
9359	{
9360	int ret = 0;
9361	xmlNodePtr cur, curElem = NULL;
9362	xmlNsMapPtr nsMap = NULL;
9363	xmlNsMapItemPtr mi;
9364	xmlNsPtr ns;
9365	int depth = -1;
9366	/* int adoptStr = 1; */
9367	/* gather @parent's ns-decls. */
9368	int parnsdone = 0;
9369	/*
9370	* @ancestorsOnly:
9371	* TODO: @ancestorsOnly should be set per option.
9372	*
9373	*/
9374	int ancestorsOnly = 0;
9375	xmlNodePtr resultClone = NULL, clone = NULL, parentClone = NULL, prevClone = NULL;
9376	xmlNsPtr cloneNs = NULL, *cloneNsDefSlot = NULL;
9377	xmlDictPtr dict; /* The destination dict */
9378
9379	if ((node == NULL) \|\| (resNode == NULL) \|\| (destDoc == NULL))
9380	return(-1);
9381	/*
9382	* TODO: Initially we support only element-nodes.
9383	*/
9384	if (node->type != XML_ELEMENT_NODE)
9385	return(1);
9386	/*
9387	* Check node->doc sanity.
9388	*/
9389	if ((node->doc != NULL) && (sourceDoc != NULL) &&
9390	(node->doc != sourceDoc)) {
9391	/*
9392	* Might be an XIncluded node.
9393	*/
9394	return (-1);
9395	}
9396	if (sourceDoc == NULL)
9397	sourceDoc = node->doc;
9398	if (sourceDoc == NULL)
9399	return (-1);
9400
9401	dict = destDoc->dict;
9402	/*
9403	* Reuse the namespace map of the context.
9404	*/
9405	if (ctxt)
9406	nsMap = (xmlNsMapPtr) ctxt->namespaceMap;
9407
9408	*resNode = NULL;
9409
9410	cur = node;
9411	if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
9412	return(-1);
9413
9414	while (cur != NULL) {
9415	if (cur->doc != sourceDoc) {
9416	/*
9417	* We'll assume XIncluded nodes if the doc differs.
9418	* TODO: Do we need to reconciliate XIncluded nodes?
9419	* TODO: This here returns -1 in this case.
9420	*/
9421	goto internal_error;
9422	}
9423	/*
9424	* Create a new node.
9425	*/
9426	switch (cur->type) {
9427	case XML_XINCLUDE_START:
9428	case XML_XINCLUDE_END:
9429	/*
9430	* TODO: What to do with XInclude?
9431	*/
9432	goto internal_error;
9433	break;
9434	case XML_ELEMENT_NODE:
9435	case XML_TEXT_NODE:
9436	case XML_CDATA_SECTION_NODE:
9437	case XML_COMMENT_NODE:
9438	case XML_PI_NODE:
9439	case XML_DOCUMENT_FRAG_NODE:
9440	case XML_ENTITY_REF_NODE:
9441	case XML_ENTITY_NODE:
9442	/*
9443	* Nodes of xmlNode structure.
9444	*/
9445	clone = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));
9446	if (clone == NULL) {
9447	xmlTreeErrMemory("xmlDOMWrapCloneNode(): allocating a node");
9448	goto internal_error;
9449	}
9450	memset(clone, 0, sizeof(xmlNode));
9451	/*
9452	* Set hierachical links.
9453	*/
9454	if (resultClone != NULL) {
9455	clone->parent = parentClone;
9456	if (prevClone) {
9457	prevClone->next = clone;
9458	clone->prev = prevClone;
9459	} else
9460	parentClone->children = clone;
9461	} else
9462	resultClone = clone;
9463
9464	break;
9465	case XML_ATTRIBUTE_NODE:
9466	/*
9467	* Attributes (xmlAttr).
9468	*/
9469	clone = (xmlNodePtr) xmlMalloc(sizeof(xmlAttr));
9470	if (clone == NULL) {
9471	xmlTreeErrMemory("xmlDOMWrapCloneNode(): allocating an attr-node");
9472	goto internal_error;
9473	}
9474	memset(clone, 0, sizeof(xmlAttr));
9475	/*
9476	* Set hierachical links.
9477	* TODO: Change this to add to the end of attributes.
9478	*/
9479	if (resultClone != NULL) {
9480	clone->parent = parentClone;
9481	if (prevClone) {
9482	prevClone->next = clone;
9483	clone->prev = prevClone;
9484	} else
9485	parentClone->properties = (xmlAttrPtr) clone;
9486	} else
9487	resultClone = clone;
9488	break;
9489	default:
9490	/*
9491	* TODO QUESTION: Any other nodes expected?
9492	*/
9493	goto internal_error;
9494	}
9495
9496	clone->type = cur->type;
9497	clone->doc = destDoc;
9498
9499	/*
9500	* Clone the name of the node if any.
9501	*/
9502	if (cur->name == xmlStringText)
9503	clone->name = xmlStringText;
9504	else if (cur->name == xmlStringTextNoenc)
9505	/*
9506	* NOTE: Although xmlStringTextNoenc is never assigned to a node
9507	* in tree.c, it might be set in Libxslt via
9508	* "xsl:disable-output-escaping".
9509	*/
9510	clone->name = xmlStringTextNoenc;
9511	else if (cur->name == xmlStringComment)
9512	clone->name = xmlStringComment;
9513	else if (cur->name != NULL) {
9514	DICT_CONST_COPY(cur->name, clone->name);
9515	}
9516
9517	switch (cur->type) {
9518	case XML_XINCLUDE_START:
9519	case XML_XINCLUDE_END:
9520	/*
9521	* TODO
9522	*/
9523	return (-1);
9524	case XML_ELEMENT_NODE:
9525	curElem = cur;
9526	depth++;
9527	/*
9528	* Namespace declarations.
9529	*/
9530	if (cur->nsDef != NULL) {
9531	if (! parnsdone) {
9532	if (destParent && (ctxt == NULL)) {
9533	/*
9534	* Gather @parent's in-scope ns-decls.
9535	*/
9536	if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,
9537	destParent) == -1)
9538	goto internal_error;
9539	}
9540	parnsdone = 1;
9541	}
9542	/*
9543	* Clone namespace declarations.
9544	*/
9545	cloneNsDefSlot = &(clone->nsDef);
9546	for (ns = cur->nsDef; ns != NULL; ns = ns->next) {
9547	/*
9548	* Create a new xmlNs.
9549	*/
9550	cloneNs = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));
9551	if (cloneNs == NULL) {
9552	xmlTreeErrMemory("xmlDOMWrapCloneNode(): "
9553	"allocating namespace");
9554	return(-1);
9555	}
9556	memset(cloneNs, 0, sizeof(xmlNs));
9557	cloneNs->type = XML_LOCAL_NAMESPACE;
9558
9559	if (ns->href != NULL)
9560	cloneNs->href = xmlStrdup(ns->href);
9561	if (ns->prefix != NULL)
9562	cloneNs->prefix = xmlStrdup(ns->prefix);
9563
9564	*cloneNsDefSlot = cloneNs;
9565	cloneNsDefSlot = &(cloneNs->next);
9566
9567	/*
9568	* Note that for custom handling of ns-references,
9569	* the ns-decls need not be stored in the ns-map,
9570	* since they won't be referenced by node->ns.
9571	*/
9572	if ((ctxt == NULL) \|\|
9573	(ctxt->getNsForNodeFunc == NULL))
9574	{
9575	/*
9576	* Does it shadow any ns-decl?
9577	*/
9578	if (XML_NSMAP_NOTEMPTY(nsMap)) {
9579	XML_NSMAP_FOREACH(nsMap, mi) {
9580	if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&
9581	(mi->shadowDepth == -1) &&
9582	((ns->prefix == mi->newNs->prefix) \|\|
9583	xmlStrEqual(ns->prefix,
9584	mi->newNs->prefix))) {
9585	/*
9586	* Mark as shadowed at the current
9587	* depth.
9588	*/
9589	mi->shadowDepth = depth;
9590	}
9591	}
9592	}
9593	/*
9594	* Push mapping.
9595	*/
9596	if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9597	ns, cloneNs, depth) == NULL)
9598	goto internal_error;
9599	}
9600	}
9601	}
9602	/* cur->ns will be processed further down. */
9603	break;
9604	case XML_ATTRIBUTE_NODE:
9605	/* IDs will be processed further down. */
9606	/* cur->ns will be processed further down. */
9607	break;
9608	case XML_TEXT_NODE:
9609	case XML_CDATA_SECTION_NODE:
9610	/*
9611	* Note that this will also cover the values of attributes.
9612	*/
9613	DICT_COPY(cur->content, clone->content);
9614	goto leave_node;
9615	case XML_ENTITY_NODE:
9616	/* TODO: What to do here? */
9617	goto leave_node;
9618	case XML_ENTITY_REF_NODE:
9619	if (sourceDoc != destDoc) {
9620	if ((destDoc->intSubset) \|\| (destDoc->extSubset)) {
9621	xmlEntityPtr ent;
9622	/*
9623	* Different doc: Assign new entity-node if available.
9624	*/
9625	ent = xmlGetDocEntity(destDoc, cur->name);
9626	if (ent != NULL) {
9627	clone->content = ent->content;
9628	clone->children = (xmlNodePtr) ent;
9629	clone->last = (xmlNodePtr) ent;
9630	}
9631	}
9632	} else {
9633	/*
9634	* Same doc: Use the current node's entity declaration
9635	* and value.
9636	*/
9637	clone->content = cur->content;
9638	clone->children = cur->children;
9639	clone->last = cur->last;
9640	}
9641	goto leave_node;
9642	case XML_PI_NODE:
9643	DICT_COPY(cur->content, clone->content);
9644	goto leave_node;
9645	case XML_COMMENT_NODE:
9646	DICT_COPY(cur->content, clone->content);
9647	goto leave_node;
9648	default:
9649	goto internal_error;
9650	}
9651
9652	if (cur->ns == NULL)
9653	goto end_ns_reference;
9654
9655	/* handle_ns_reference: */
9656	/*
9657	The following will take care of references to ns-decls ******
9658	** and is intended only for element- and attribute-nodes.
9659	**
9660	*/
9661	if (! parnsdone) {
9662	if (destParent && (ctxt == NULL)) {
9663	if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap, destParent) == -1)
9664	goto internal_error;
9665	}
9666	parnsdone = 1;
9667	}
9668	/*
9669	* Adopt ns-references.
9670	*/
9671	if (XML_NSMAP_NOTEMPTY(nsMap)) {
9672	/*
9673	* Search for a mapping.
9674	*/
9675	XML_NSMAP_FOREACH(nsMap, mi) {
9676	if ((mi->shadowDepth == -1) &&
9677	(cur->ns == mi->oldNs)) {
9678	/*
9679	* This is the nice case: a mapping was found.
9680	*/
9681	clone->ns = mi->newNs;
9682	goto end_ns_reference;
9683	}
9684	}
9685	}
9686	/*
9687	* No matching namespace in scope. We need a new one.
9688	*/
9689	if ((ctxt != NULL) && (ctxt->getNsForNodeFunc != NULL)) {
9690	/*
9691	* User-defined behaviour.
9692	*/
9693	ns = ctxt->getNsForNodeFunc(ctxt, cur,
9694	cur->ns->href, cur->ns->prefix);
9695	/*
9696	* Add user's mapping.
9697	*/
9698	if (xmlDOMWrapNsMapAddItem(&nsMap, -1,
9699	cur->ns, ns, XML_TREE_NSMAP_CUSTOM) == NULL)
9700	goto internal_error;
9701	clone->ns = ns;
9702	} else {
9703	/*
9704	* Aquire a normalized ns-decl and add it to the map.
9705	*/
9706	if (xmlDOMWrapNSNormAquireNormalizedNs(destDoc,
9707	/* ns-decls on curElem or on destDoc->oldNs */
9708	destParent ? curElem : NULL,
9709	cur->ns, &ns,
9710	&nsMap, depth,
9711	/* if we need to search only in the ancestor-axis */
9712	ancestorsOnly,
9713	/* ns-decls must be prefixed for attributes. */
9714	(cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)
9715	goto internal_error;
9716	clone->ns = ns;
9717	}
9718
9719	end_ns_reference:
9720
9721	/*
9722	* Some post-processing.
9723	*
9724	* Handle ID attributes.
9725	*/
9726	if ((clone->type == XML_ATTRIBUTE_NODE) &&
9727	(clone->parent != NULL))
9728	{
9729	if (xmlIsID(destDoc, clone->parent, (xmlAttrPtr) clone)) {
9730
9731	xmlChar *idVal;
9732
9733	idVal = xmlNodeListGetString(cur->doc, cur->children, 1);
9734	if (idVal != NULL) {
9735	if (xmlAddID(NULL, destDoc, idVal, (xmlAttrPtr) cur) == NULL) {
9736	/* TODO: error message. */
9737	xmlFree(idVal);
9738	goto internal_error;
9739	}
9740	xmlFree(idVal);
9741	}
9742	}
9743	}
9744	/*
9745	**
9746	The following will traverse the tree ************************
9747	**
9748	*
9749	* Walk the element's attributes before descending into child-nodes.
9750	*/
9751	if ((cur->type == XML_ELEMENT_NODE) && (cur->properties != NULL)) {
9752	prevClone = NULL;
9753	parentClone = clone;
9754	cur = (xmlNodePtr) cur->properties;
9755	continue;
9756	}
9757	into_content:
9758	/*
9759	* Descend into child-nodes.
9760	*/
9761	if (cur->children != NULL) {
9762	if (deep \|\| (cur->type == XML_ATTRIBUTE_NODE)) {
9763	prevClone = NULL;
9764	parentClone = clone;
9765	cur = cur->children;
9766	continue;
9767	}
9768	}
9769
9770	leave_node:
9771	/*
9772	* At this point we are done with the node, its content
9773	* and an element-nodes's attribute-nodes.
9774	*/
9775	if (cur == node)
9776	break;
9777	if ((cur->type == XML_ELEMENT_NODE) \|\|
9778	(cur->type == XML_XINCLUDE_START) \|\|
9779	(cur->type == XML_XINCLUDE_END)) {
9780	/*
9781	* TODO: Do we expect nsDefs on XML_XINCLUDE_START?
9782	*/
9783	if (XML_NSMAP_NOTEMPTY(nsMap)) {
9784	/*
9785	* Pop mappings.
9786	*/
9787	while ((nsMap->last != NULL) &&
9788	(nsMap->last->depth >= depth))
9789	{
9790	XML_NSMAP_POP(nsMap, mi)
9791	}
9792	/*
9793	* Unshadow.
9794	*/
9795	XML_NSMAP_FOREACH(nsMap, mi) {
9796	if (mi->shadowDepth >= depth)
9797	mi->shadowDepth = -1;
9798	}
9799	}
9800	depth--;
9801	}
9802	if (cur->next != NULL) {
9803	prevClone = clone;
9804	cur = cur->next;
9805	} else if (cur->type != XML_ATTRIBUTE_NODE) {
9806	/*
9807	* Set clone->last.
9808	*/
9809	if (clone->parent != NULL)
9810	clone->parent->last = clone;
9811	clone = clone->parent;
9812	if (clone != NULL)
9813	parentClone = clone->parent;
9814	/*
9815	* Process parent --> next;
9816	*/
9817	cur = cur->parent;
9818	goto leave_node;
9819	} else {
9820	/* This is for attributes only. */
9821	clone = clone->parent;
9822	parentClone = clone->parent;
9823	/*
9824	* Process parent-element --> children.
9825	*/
9826	cur = cur->parent;
9827	goto into_content;
9828	}
9829	}
9830	goto exit;
9831
9832	internal_error:
9833	ret = -1;
9834
9835	exit:
9836	/*
9837	* Cleanup.
9838	*/
9839	if (nsMap != NULL) {
9840	if ((ctxt) && (ctxt->namespaceMap == nsMap)) {
9841	/*
9842	* Just cleanup the map but don't free.
9843	*/
9844	if (nsMap->first) {
9845	if (nsMap->pool)
9846	nsMap->last->next = nsMap->pool;
9847	nsMap->pool = nsMap->first;
9848	nsMap->first = NULL;
9849	}
9850	} else
9851	xmlDOMWrapNsMapFree(nsMap);
9852	}
9853	/*
9854	* TODO: Should we try a cleanup of the cloned node in case of a
9855	* fatal error?
9856	*/
9857	*resNode = resultClone;
9858	return (ret);
9859	}
9860
9861	/*
9862	* xmlDOMWrapAdoptAttr:
9863	* @ctxt: the optional context for custom processing
9864	* @sourceDoc: the optional source document of attr
9865	* @attr: the attribute-node to be adopted
9866	* @destDoc: the destination doc for adoption
9867	* @destParent: the optional new parent of @attr in @destDoc
9868	* @options: option flags
9869	*
9870	* @attr is adopted by @destDoc.
9871	* Ensures that ns-references point to @destDoc: either to
9872	* elements->nsDef entries if @destParent is given, or to
9873	* @destDoc->oldNs otherwise.
9874	*
9875	* Returns 0 if succeeded, -1 otherwise and on API/internal errors.
9876	*/
9877	static int
9878	xmlDOMWrapAdoptAttr(xmlDOMWrapCtxtPtr ctxt,
9879	xmlDocPtr sourceDoc,
9880	xmlAttrPtr attr,
9881	xmlDocPtr destDoc,
9882	xmlNodePtr destParent,
9883	int options ATTRIBUTE_UNUSED)
9884	{
9885	xmlNodePtr cur;
9886	int adoptStr = 1;
9887
9888	if ((attr == NULL) \|\| (destDoc == NULL))
9889	return (-1);
9890
9891	attr->doc = destDoc;
9892	if (attr->ns != NULL) {
9893	xmlNsPtr ns = NULL;
9894
9895	if (ctxt != NULL) {
9896	/* TODO: User defined. */
9897	}
9898	/* XML Namespace. */
9899	if (IS_STR_XML(attr->ns->prefix)) {
9900	ns = xmlTreeEnsureXMLDecl(destDoc);
9901	} else if (destParent == NULL) {
9902	/*
9903	* Store in @destDoc->oldNs.
9904	*/
9905	ns = xmlDOMWrapStoreNs(destDoc, attr->ns->href, attr->ns->prefix);
9906	} else {
9907	/*
9908	* Declare on @destParent.
9909	*/
9910	if (xmlSearchNsByNamespaceStrict(destDoc, destParent, attr->ns->href,
9911	&ns, 1) == -1)
9912	goto internal_error;
9913	if (ns == NULL) {
9914	ns = xmlDOMWrapNSNormDeclareNsForced(destDoc, destParent,
9915	attr->ns->href, attr->ns->prefix, 1);
9916	}
9917	}
9918	if (ns == NULL)
9919	goto internal_error;
9920	attr->ns = ns;
9921	}
9922
9923	XML_TREE_ADOPT_STR(attr->name);
9924	attr->atype = 0;
9925	attr->psvi = NULL;
9926	/*
9927	* Walk content.
9928	*/
9929	if (attr->children == NULL)
9930	return (0);
9931	cur = attr->children;
9932	if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))
9933	goto internal_error;
9934	while (cur != NULL) {
9935	cur->doc = destDoc;
9936	switch (cur->type) {
9937	case XML_TEXT_NODE:
9938	case XML_CDATA_SECTION_NODE:
9939	XML_TREE_ADOPT_STR_2(cur->content)
9940	break;
9941	case XML_ENTITY_REF_NODE:
9942	/*
9943	* Remove reference to the entitity-node.
9944	*/
9945	cur->content = NULL;
9946	cur->children = NULL;
9947	cur->last = NULL;
9948	if ((destDoc->intSubset) \|\| (destDoc->extSubset)) {
9949	xmlEntityPtr ent;
9950	/*
9951	* Assign new entity-node if available.
9952	*/
9953	ent = xmlGetDocEntity(destDoc, cur->name);
9954	if (ent != NULL) {
9955	cur->content = ent->content;
9956	cur->children = (xmlNodePtr) ent;
9957	cur->last = (xmlNodePtr) ent;
9958	}
9959	}
9960	break;
9961	default:
9962	break;
9963	}
9964	if (cur->children != NULL) {
9965	cur = cur->children;
9966	continue;
9967	}
9968	next_sibling:
9969	if (cur == (xmlNodePtr) attr)
9970	break;
9971	if (cur->next != NULL)
9972	cur = cur->next;
9973	else {
9974	cur = cur->parent;
9975	goto next_sibling;
9976	}
9977	}
9978	return (0);
9979	internal_error:
9980	return (-1);
9981	}
9982
9983	/*
9984	* xmlDOMWrapAdoptNode:
9985	* @ctxt: the optional context for custom processing
9986	* @sourceDoc: the optional sourceDoc
9987	* @node: the node to start with
9988	* @destDoc: the destination doc
9989	* @destParent: the optional new parent of @node in @destDoc
9990	* @options: option flags
9991	*
9992	* References of out-of scope ns-decls are remapped to point to @destDoc:
9993	* 1) If @destParent is given, then nsDef entries on element-nodes are used
9994	* 2) If no @destParent is given, then @destDoc->oldNs entries are used
9995	* This is the case when you have an unlinked node and just want to move it
9996	* to the context of
9997	*
9998	* If @destParent is given, it ensures that the tree is namespace
9999	* wellformed by creating additional ns-decls where needed.
10000	* Note that, since prefixes of already existent ns-decls can be
10001	* shadowed by this process, it could break QNames in attribute
10002	* values or element content.
10003	* NOTE: This function was not intensively tested.
10004	*
10005	* Returns 0 if the operation succeeded,
10006	* 1 if a node of unsupported type was given,
10007	* 2 if a node of not yet supported type was given and
10008	* -1 on API/internal errors.
10009	*/
10010	int
10011	xmlDOMWrapAdoptNode(xmlDOMWrapCtxtPtr ctxt,
10012	xmlDocPtr sourceDoc,
10013	xmlNodePtr node,
10014	xmlDocPtr destDoc,
10015	xmlNodePtr destParent,
10016	int options)
10017	{
10018	if ((node == NULL) \|\| (node->type == XML_NAMESPACE_DECL) \|\|
10019	(destDoc == NULL) \|\|
10020	((destParent != NULL) && (destParent->doc != destDoc)))
10021	return(-1);
10022	/*
10023	* Check node->doc sanity.
10024	*/
10025	if ((node->doc != NULL) && (sourceDoc != NULL) &&
10026	(node->doc != sourceDoc)) {
10027	/*
10028	* Might be an XIncluded node.
10029	*/
10030	return (-1);
10031	}
10032	if (sourceDoc == NULL)
10033	sourceDoc = node->doc;
10034	if (sourceDoc == destDoc)
10035	return (-1);
10036	switch (node->type) {
10037	case XML_ELEMENT_NODE:
10038	case XML_ATTRIBUTE_NODE:
10039	case XML_TEXT_NODE:
10040	case XML_CDATA_SECTION_NODE:
10041	case XML_ENTITY_REF_NODE:
10042	case XML_PI_NODE:
10043	case XML_COMMENT_NODE:
10044	break;
10045	case XML_DOCUMENT_FRAG_NODE:
10046	/* TODO: Support document-fragment-nodes. */
10047	return (2);
10048	default:
10049	return (1);
10050	}
10051	/*
10052	* Unlink only if @node was not already added to @destParent.
10053	*/
10054	if ((node->parent != NULL) && (destParent != node->parent))
10055	xmlUnlinkNode(node);
10056
10057	if (node->type == XML_ELEMENT_NODE) {
10058	return (xmlDOMWrapAdoptBranch(ctxt, sourceDoc, node,
10059	destDoc, destParent, options));
10060	} else if (node->type == XML_ATTRIBUTE_NODE) {
10061	return (xmlDOMWrapAdoptAttr(ctxt, sourceDoc,
10062	(xmlAttrPtr) node, destDoc, destParent, options));
10063	} else {
10064	xmlNodePtr cur = node;
10065	int adoptStr = 1;
10066
10067	cur->doc = destDoc;
10068	/*
10069	* Optimize string adoption.
10070	*/
10071	if ((sourceDoc != NULL) &&
10072	(sourceDoc->dict == destDoc->dict))
10073	adoptStr = 0;
10074	switch (node->type) {
10075	case XML_TEXT_NODE:
10076	case XML_CDATA_SECTION_NODE:
10077	XML_TREE_ADOPT_STR_2(node->content)
10078	break;
10079	case XML_ENTITY_REF_NODE:
10080	/*
10081	* Remove reference to the entitity-node.
10082	*/
10083	node->content = NULL;
10084	node->children = NULL;
10085	node->last = NULL;
10086	if ((destDoc->intSubset) \|\| (destDoc->extSubset)) {
10087	xmlEntityPtr ent;
10088	/*
10089	* Assign new entity-node if available.
10090	*/
10091	ent = xmlGetDocEntity(destDoc, node->name);
10092	if (ent != NULL) {
10093	node->content = ent->content;
10094	node->children = (xmlNodePtr) ent;
10095	node->last = (xmlNodePtr) ent;
10096	}
10097	}
10098	XML_TREE_ADOPT_STR(node->name)
10099	break;
10100	case XML_PI_NODE: {
10101	XML_TREE_ADOPT_STR(node->name)
10102	XML_TREE_ADOPT_STR_2(node->content)
10103	break;
10104	}
10105	default:
10106	break;
10107	}
10108	}
10109	return (0);
10110	}
10111
10112	#define bottom_tree
10113	#include "elfgcchack.h"

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source: vbox/trunk/src/libs/libxml2-2.9.2/tree.c@ 61328

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